Non-woven fibrous material with non-bound sites located in accordance with a certain pattern, and method of its manufacture

 

(57) Abstract:

The invention relates to a nonwoven material containing non-bound areas located in accordance with a certain pattern, in which the continuous bonded areas define a number of separate non-bound areas. The material is suitable for use as an improved hinge fastened material fastened system "hook-loop". Non-woven fibrous material contains canvas, consisting of individual fibers or of filaments. It has a bulk density of at least about 0,254 mm and a surface density of at least about 20 g/m2. Fibrous canvas has on its surface a continuous bonded areas located in accordance with a certain pattern, determining a number of separate non-bound sections formed by application of heat and pressure. The bonded area of the canvas is about 25 to 50%, and the individual fibers or filaments in a separate non-bound areas, at least in part, act/and secured in a continuous bonded areas. The method of manufacturing of this material having a fibrous structure, status pattern on the surface, and the other smooth surface, the rotation of the shafts in opposite directions, the bond of the canvas by means of heat and pressure to form the pattern, and the bonding area of the canvas is about 25 - 50% and at least part of the individual fibers or filaments in a separate non-bound sites is/and is fixed in the continuous bonded areas. This material is used in mechanically fastened system containing components: covered and covering, suitable for coupling with the possibility of separation from the covered component. Covering component contains material according to the invention. The material is also used in the water-absorbing product is disposable, and in the same article containing the lining facing the user's body, the outer covering material, an absorbent structure disposed between the lining and the outer covering material, mechanically fastened the strap is attached to the product and includes a covered component and covering containing nonwoven material according to the invention. Non-woven material used for clasps systems "hook and loop", without any lining layers or films or adhesive metereologist canvases and methods for their manufacture. In particular, the present invention relates to nonwovens and fiber canvas, containing a continuous bonded areas, covering a number of separate non-bound areas with stable dimensions. Such non-woven fabrics or fibrous canvas manufactured in accordance with the present invention, suitable for use as a loop material fasteners for mechanically fastened systems, commonly called clasps - "hook and loop".

Art

Mechanically fastened systems of this type, which is otherwise called clasps - "hook and loop", have become increasingly used in various domestic and industrial areas. Some examples of such applications include disposable desiccant products of personal hygiene, clothing, articles of sports equipment and a wide range of various other products. Typically, such fasteners "hook and loop" is used in situations where it is desirable reconnect the fastening of two or more materials or products. These mechanically fastened systems in many cases have been replaced by other conventional devices used for such controlled systems usually consist of two components: covered component (hook) and covering the component (loops). Covered component usually contains many semi-rigid hook-shaped elements are fixed or attached to the substrate. Covering component typically includes an elastic lining material, which is a lot protruding loops. Hook elements of the hook component is made to hook the loops of the looped material, thus forming a mechanical connection between the hook and looped elements of the two components. These mechanical joints is to prevent separation of the respective components during normal use. Mechanically fastened systems are designed to eliminate the Department of the U. and hinge components under the application of shear force or stress, which is applied in a plane parallel to or defined by the United surfaces of the hook and loop components, as well as pulling effort or exertion. However, the application pulling effort in the direction predominantly perpendicular or normal to the plane defined by the mating surfaces of the hook and loop components, may cause separation of cruccolini captured U. elements or by bending elastic U. elements to such an extent, while the hook elements will not release the hinge elements.

Mechanically fastened systems can be successfully used in a disposable desiccant products personal hygiene products such as disposable diapers, disposable clothing, disposable products used in case of incontinence, etc. These products are for short-term use usually are disposable products that are destroyed after a relatively short period of use (usually the duration of these periods is a matter of hours), and are not intended for washing and reuse. It is therefore desirable to eliminate costly components in the design of such products. Thus, taking into account the conditions in which use hook and hinge components in such products, hook and hinge components must be relatively inexpensive from the point of view of materials and methods of manufacturing such components. On the other hand, hook and hinge components must have sufficient structural integrity and elasticity to withstand the effort applied to them during the normal water-absorbing socks products, in order to exclude the potential of the branch, or separation U. and hinge components.

In U.S. patent N 4761318, issued in the name of Ott and others, described looped material for fasteners, suitable for mechanically fastened systems for products for short-term use. Hinge material for the fasteners disclosed in this patent includes a fibrous layer containing many loops on the first surface, adapted to make it connect with the possibility of separation by pairing with a hook fastened part, and a layer of thermoplastic resin adhered to the surface of the fibrous structure opposite the first surface. Thermoplastic resin is fixed loop in the fibrous structure.

In U.S. patent N 5032122, issued in the name of Noel and others, revealed looped material for fasteners, suitable for mechanically fastened systems for products for short-term use. Hinge material for the fasteners disclosed in this patent contains a lining oriented material and lots of fibrous elements of the acts of this lining. The fibrous elements are formed from elementary filaments located at/and at certain points, attached to the lining, when Oriente elements formed by formation of a corrugation of elementary filaments between the spaced fixed zones fastening them to the lining, when oriented material is subjected to transform into a stable state sizes so that they forced him to sit or gather along the trajectories of shrinkage. Thus, the hinge material made in accordance with this patent requires the use of lining oriented material, such as elastic or elastomeric, or shrinkable by heating the material, which is subjected to transform from a stable in relation to the size of the state in fragile in the size of the state and return to its stable in the size of the state.

In U.S. patent 5326612, issued in the name Galata, disclosed hinge material for fasteners, suitable for mechanically fastened systems for products for short-term use. Hinge material for the fasteners disclosed in this patent contains a fibrous canvas, mounted on the lining. Fibrous canvas is used for receiving and gripping hooks paired hook component. Fibrous canvas has an installed surface density within about 5-42 g/m2, the area of bonding between the fibers is less than 10% and the total area of the bonding in the plan is less than what Arkenstone looped material for fasteners for mechanically fastened systems, however, there is, especially when such materials are used in a disposable water-absorbing articles of personal hygiene. Non-woven stitch material with non-bound sites located in accordance with a certain pattern, for fasteners made in accordance with the present invention, is soft and tissue-like and therefore aesthetically attractive from the point of view of appearance and to the touch. Non-woven material with a non-bound sites located in accordance with a certain pattern, made in accordance with the present invention, has significant structural coupling and dimensional stability, so that, unlike certain previously known hinge materials, the need for accession to the carrier substrate or backing layer, for fixing fibers or of filaments in the nonwoven material, are excluded. Non-woven material with a non-bound sites located in accordance with a certain pattern, made in accordance with the present invention, relatively inexpensive to manufacture, especially in comparison with the conventional looped material formed of knitted by the way, warp the way the STI for peeling and cutting efforts in comparison with the conventional looped materials for fasteners when used with commercially supplied line materials for fasteners.

The invention

The present invention relates to non-woven material containing non-bound areas located in accordance with a certain pattern, containing:

the first fiber canvas, having a fibrous structure consisting of individual fibers or of filaments, and

a certain volume, comprising at least about 0,254 mm, and the surface density of at least about 20 g/m2and

having on its surface a continuous bonded areas located in accordance with a certain pattern, determining a number of separate non-bound sections formed by application of heat and pressure, while the bonded area of the fibrous canvas is about 25-50%, and

referred to a separate fiber or filament in a separate non-bound sites at least partially act/and secured in a continuous bonded areas.

Fibrous canvas may be bonded area, comprising approximately 36-50%.

Netca the Wu, component of at least 50,

Fibrous canvas can contain a filament, formed from molten polymers or staple fibers. Fibrous canvas can contain multicomponent filament, formed from molten polymers.

The nonwoven material may include a film layer attached to the surface of the nonwoven fabric opposite the surface on which the continuous bonded areas located in accordance with a certain pattern, determining a number of separate non-bound sites.

Non-woven material may also contain:

the second non-woven canvas, having a fibrous structure consisting of individual fibers or of filaments, and

the first and second fibrous webs, laid one upon the other.

Individual fibers or filament of the first fibrous canvas can have a single linear density, and a separate fiber or filament of the second fibrous canvas can have a second linear density different from the first linear density, and the first fibrous canvas has one surface density, and the second fibrous canvas has a second what I mechanically fastened system, contains:

covered component

covering component suitable for coupling with the possibility of separation from the covered component

covering the component containing the non-woven material containing non-bound areas located in accordance with a certain pattern described above.

The invention also relates to water-absorbing product is disposable, containing nonwoven material containing non-bound areas located in accordance with a certain pattern described above.

The invention relates to water-absorbing product disposable contains:

the lining facing the user's body,

the outer covering material,

an absorbent structure disposed between the lining and the outer covering material,

mechanically fastened the strap is attached to the product, and fastened strap includes a covered component,

covering component that is attached to the outer covering material and suitable for coupling with the possibility of separation from the covered component, and

covering component containing nonwoven mother who CLASS="ptx2">

In addition, the invention relates to a method of forming a nonwoven material containing non-bound areas located in accordance with a certain pattern, which includes the following steps:

the formation of the first fiber canvas, having a fibrous structure consisting of individual fibers or of filaments,

feeding fibrous canvas in the sting, formed opposing first and second shafts, the first shaft includes a patterned outer surface, and the second shaft has a smooth outer surface,

the rotation of the first and second shafts in opposite directions,

bond fibrous canvas by application of heat and pressure for the formation on the surface of the canvas pattern of continuous bonded areas defining a number of separate non-bound sites,

while the bonded area of the fibrous canvas is about 25-50%,

at least part of the individual fibers or of filaments in a separate non-bound sites is/and is fixed in the continuous bonded areas.

The method may include the following steps:

feeding fibrous canvas in the sting between the first and second alsta by application of heat and pressure for the formation of at least two surfaces of canvas pattern of continuous bonded areas, determining a number of separate non-bound sites.

Furthermore, the method may include the following steps:

the formation of the second fibrous canvas with fibrous structure of individual fibers or of filaments,

the flow of the first and second fibrous laps in the sting shaft,

bond the first and second fibrous laps together to form a nonwoven laminated material containing non-bound areas located in accordance with a specific pattern.

Further, the method may include the following steps:

forming a first fibrous canvas consisting of fibers or of filaments of the first size and having a first surface density, and

the formation of the second fiber canvas, consisting of fibers or of filaments of a second size, different from the first size of the fibers or of filaments and having a second surface density different from the first surface density.

The method may also include the step of bonding the first fiber canvas, and

also contain the pre-bonding at least adnane nonwoven layer, containing filament, formed from the melt of the polymer, and the step of forming the non-woven layer containing multicomponent filament, formed from the melt of the polymer, and the step of forming the non-woven layer containing multicomponent twisted filament, formed from molten polymers.

Thus, the present invention is directed to creation of non-woven material containing a continuous bonded areas defining a number of separate non-bound sites suitable for use as an improved hinge material for fasteners fastened systems "hook and loop". Fiber or filament to separate the non-fastened parts, made in accordance with the present invention, stable in size due to the continuous bonded areas that surround or cover every loosed area so that do not need any support or backing layer, or film, or adhesive material. Loosed areas specially designed to form a space between the fibers or elementary filaments inside loosed sites that Otho hook material. Krukovii material may be one of a wide variety of commercially supplied U. of components, which, as is known in this field of production, contains the basic material of which is many U. elements.

Non-woven material or fibrous canvas with non-bound sites located in accordance with a certain pattern may be, for example, fibrous canvas type "spunbond", formed from a single component or multicomponent of filaments obtained by molding from a melt of polymers. At least one surface of the nonwoven material contains many discrete loosed areas surrounded or covered by a continuous bonded areas. Continuous bonded areas stabilize the dimensions of the fibers or of filaments, forming a fibrous canvas, by bonding or fusion and bonding between the parts of the fibers or of filaments that protrude from the non-bound areas and are located in bonded areas, leaving at the same time, fiber or filament loosed in areas relatively free from fastening or races the button to turn the fibrous canvas in the fibrous structure bonded areas, leave fibers or elementary filaments in the non-fastened sites to act as "hinges" for the reception and capture of U. elements projecting from the hook material. As each individual loosed the site is fully surrounded by a bonded area, the fiber or filament in the non-fastened sites usually have at least one part, and preferably many parts acting in the area of bonded areas. In the small chance that loosed fiber or filament in each loosed the site acting as the "loop" will be separated from or pulled out of the fibrous structure of the canvas in the separation or removal of U. elements of hook material under normal use fastened system "hook-loop". Thus, non-woven material with a non-bound sites located in accordance with a certain pattern, made in accordance with the present invention, when used as a hinge material reduces vydergivanii fibers by reducing the amount of non-bound, free and unsized fibers or of filaments in the hinge MaterialName, has improved surface cohesion and strength and is devoid of any other properties, adversely affecting the functioning as a hinge material, from the viewpoint of steps tear and shear effort.

Alternative versions of the above non-woven fabric or fibrous canvas with non-bound sites located in accordance with a certain pattern, include laminates of two or more fibrous laps or layers, laminates of two or more fibrous laps or layers having different surface density, or using different types of fibers and/or fibers with different sizes for the formation of the relevant fleece or layer, and laminates of two or more fleece and a layer of film.

Suitable methods of forming the non-woven material with a non-bound sites located in accordance with a certain pattern, made in accordance with the present invention, includes the following stages: production of non-woven fabric or fiber canvas, introduction located one against the other of the first and second calenders and installation of wiring between them, Alausi a continuous pattern of sample plots, determining the location of many individual holes, and passing the non-woven fabric or fiber of the canvas through the sting mentioned shafts. Each hole in said shaft or shafts, limited continuous support areas, forms a separate loosed the plot, at least on one surface of a nonwoven material or fibrous canvas, in which the fiber or filament canvas substantially or fully bonded. In an alternative formulation of the continuous drawing of sample plots in the shaft or shafts to form a continuous pattern of bonded areas, which determine the number of separate non-bound areas, at least on one surface of the mentioned non-woven fabric or fibrous canvas. Alternative versions of the above-mentioned method include: pre-bond non-woven fabric or fibrous canvas before skipping or fibrous material of the canvas through the sting formed by calender rolls, or the introduction of a variety of non-woven canvases to form a laminate with a non-bound sites located in accordance with a specific pattern.

When used in Chacaltaya, looped nonwoven material with a non-bound sites located in accordance with a certain pattern, made in accordance with the present invention, may be glued or attached to the outer layer or lining products as a separate overlay hinge material. In an alternative embodiment, the looped nonwoven material with a non-bound sites located in accordance with a certain pattern, can produce all the outer coating or lining of such a disposable water-absorbing articles of personal hygiene.

Brief description of drawings

In Fig.1 shows in plan on an enlarged scale of a nonwoven material with a non-bound sites located in accordance with a certain pattern, made in accordance with the present invention.

In Fig. 2 shows a cross section of a nonwoven material with a non-bound sites located in accordance with a certain pattern, shown in Fig.1.

In Fig.3 shows schematically, in side view, an exemplary implementation of a method and device for the manufacture of non-woven fibrous canvas "spunbond" of the matrix of filaments.

In Fig. 5 shows a partial view in perspective patterned shaft, which can be used in accordance with the method and device shown in Fig.4.

In Fig.6 shows a perspective view of the diaper (nappy) disposable, in which the hinge plates used non-woven material with a non-bound sites located in accordance with a specific pattern.

Detailed description of the invention

The present invention relates to non-woven material or fibrous canvas containing continuous bonded areas defining a number of separate non-bound areas that are suitable for use as an improved hinge material for fasteners for mechanically fastened systems "hook-loop". For clarity, the present invention will be described as the hinge material clasps both separately and in connection with its use in disposable desiccant products of personal hygiene, including diapers, training pants, garments for persons of strad is Niceno this list of products for special applications, as it can be used in all applications in which such non-woven fabrics and fibrous webs, containing loosed on the land plots in accordance with a certain pattern, can be successfully used.

For example, non-woven material or fibrous canvas containing loosed on the land plots in accordance with a certain pattern, can be used as filter materials, as materials for the direction or distribution of a liquid in a disposable water-absorbing articles of personal hygiene, such as lining in contact with the body of a user, or surgical materials used in disposable diapers, etc. Continuous bonded fibrous areas of the canvas that contains loosed on the land plots in accordance with a certain pattern, substantially water-resistant, while a separate non-bound areas of the canvas remain moisture-permeable. Thus, the canvas that contains loosed on the land plots in accordance with a certain pattern, includes separate, or isolated non-bound areas that function as specific the military stations in the canvas, contains loosed on the land plots in accordance with a certain pattern, can be used to direct and channel the flow of liquid. Moreover, the pattern of continuous bonded areas and a separate non-bound sections can be modified to provide a wide range of desired locations of points or flow channels for fluid filtration and the control or distribution by modification of the structure containing non-bound fibrous areas located in accordance with a certain pattern, as described here. Moreover, the three-dimensional surface topography of a material containing non-bound areas located in accordance with a certain pattern, made in accordance with the present invention, can have pleasant for the consumer aesthetic appearance.

When used as a covering, or hinge component fastened system "hook-loop, looped material, made in accordance with the present invention, it is intended to use with a wide range of U. materials. For example, hook materials, suitable for use with looped material, winter, PCs new Hampshire) under the trade designation CFM-22-1097; CFM-22-1121; CFM-22-1162; CFM-25-1003; CFM-29-1003; CFM-29-1005; or company Minnesota mining & Manufacturing Co., in Sao Paulo, PCs Minnesota) under the designation CS 200. Suitable hook materials usually contain about 16 - 620 hooks/cm2or about 124-388 hooks/cm2or about 155-310 hooks/cm2. The hooks preferably have a height of about 0,0254-1.9 mm or 0,381-0,762 mm

As is well known in this field of production, hook materials usually contain a substrate with multiple unilateral or bilateral U. element projecting generally perpendicular to the substrate. Here the term "bilateral" denotes krukovii material having separate adjacent hook elements, oriented in opposite directions in the longitudinal direction of the hook material. The term "one-way", on the other hand, indicated krukovii material having separate adjacent hook elements oriented in one direction in the longitudinal direction of the hook material.

To illustrate the non-woven loop material containing non-bound areas located in accordance with certain was resultval one type of hook material. Krukovii material includes hook elements, with an average total height, measured from the upper surface of the base material to the highest point U. elements. The average height of the U. of items used in connection with the material of the present invention, was about 0.5 mm. This krukovii material has a density of hooks about 265 1/cm2. The thickness of the substrate was 0,09 mm This krukovii material can be supplied by the firm "Velcro USA under the designation CFM-29-1003. Other parameters and properties of hook material are given in the following descriptions of the examples.

Although the term "krukovii material" is used here to denote a part of the mechanical fastened systems with exciting (hook) elements, it is not intended to limit the shape of the exciting parts only concept that includes "hooks", but it should include any form of exciting elements of both unilateral and bilateral, which are known in this industry that should be created or adapted to grip the mating loop material fasteners, such as non-woven looped material with non-bound areas, raspolozhennymi Fig.1 and 2 shows a variant of execution of the non-woven loop material 4 with the non-fastened parts, arranged in accordance with a certain pattern, made in accordance with the present invention. For certainty, the term "non-woven looped material with non-bound sites located in accordance with a certain pattern", as used here, denotes a hinge or covering component fastened system "hook-loop" in its simplest form, i.e. non-woven material or fibrous canvas containing continuous bonded areas 6, which define a set of discrete stable in size loosed sections 8. In the continuous bonded areas 6 fiber or filament nonwoven fibrous canvas completely glued or bonded together by melting and preferably devoid of fibrous structure, while in the non-fastened parts 8 fiber or filament nonwoven or fibrous canvas largely or completely free of bonding or fusion and retain their fibrous structure. Don't mean this term to limit the looped material, made in accordance with the present invention, only the non-woven material; rather, the hinge material is made in which, the which, for example, non-woven material or fibrous canvas with non-bound sites located in accordance with a certain pattern, can be attached or bonded to the layer of film material. There is no intention by the term "hinge" to limit the looped material, made in accordance with the present invention, only materials in which discrete separately formed of a loop material is used for receiving and capturing U. elements of the mating hook material; rather, the hinge material, made in accordance with the present invention includes a fibrous nonwoven or fibrous webs, in which individual fibers or filament perform the role of elements, exciting hook elements without converting such fibers or of filaments in discrete loops.

The terms "layer" or "canvas" when used in this description and in the singular can have the dual meaning of and identify one element or multiple elements. The term "laminate" here refers to a composite material containing a material made from two or more layers or canvas material that was attached or bonded in accordance with a certain pattern, can be in General described as any non-woven material or canvas, which, in the formation in accordance with the present invention, suitable for receiving and gripping hooks paired hook material. The terms "nonwoven fabric" or "fibrous canvas" here refers to the canvas, having a structure of individual fibers or of filaments, which are superimposed on each other, but not in a specific form, as in a knitted cloth. It should be noted, however, that, although the present invention will be described in the context of non-woven materials and canvases, fabric and/or knitted fabrics formed from appropriate materials so that there was formed a pattern of continuous bonded areas defining a number of separate non-bound areas, with at least one of its sides, can be stabilized in size, when using the method and equipment described here.

Commercially supplied thermoplastic polymeric materials can be successfully used for the manufacture of fibers and of filaments of which is formed of non-woven material 4 containing loosed on the land plots in accordance with Opredelenie, block polymers, graft copolymers, random copolymers and alternative copolymers, ternary copolymers, etc. and blends and modifications. Moreover, if different in any way not specifically limited, the term "polymer" shall include all possible geometrical configurations of materials, including, without limitation, isotactic, syndiotactic and chaotic symmetry. The term "thermoplastic polymer or thermoplastic polymer material" denotes polymers with long molecular chains, which softens when heated and returns to its original condition when cooled to ambient temperature. For example, thermoplastic material includes, without limitation, poly(vinyl chloride)s, polyesters, polyamides, polyflor-hydrocarbons, polyolefins, polyurethanes, polyserena, polyvinyl alcohols, caprolactam and copolymers of the above polymers. Fiber or filament used in the manufacture of nonwoven material 4 containing loosed on the land plots in accordance with a certain pattern may have any suitable morphology and may include hollow or solid, nesvita and corrugated, single-component, bicomponent or mnogo ntalnyh threads, as is well known in the industry.

Fibrous webs, which can be used as non-woven materials containing non-bound areas located in accordance with a certain pattern, made in accordance with the present invention, can be formed by a variety of known methods of formation, including how spunbonding", aerodynamic method or the method of securing the canvas with a carding machine. All such fibrous canvases can be pre-bonded using known methods of bonding fibrous laps and then bonded using the method of binding in which leave loosed on the land plots in accordance with a certain pattern, and the device made in accordance with the present invention, or, alternatively, such fibrous canvases can only be bonded using the method of binding in which leave loosed on the land plots in accordance with a certain pattern, and the device made in accordance with the present invention.

Fibrous canvases "spunbond" is made of anacani fiber or filament of small diameter, which are formed by extruding molten thermoplastic substance in the form of filaments through a lot of fine, usually circular capillary channels in filiere, the diameter of filaments decreases rapidly, for example, when using beseeching or ejector ways of drawing in the liquid state, is well known in the field of production technology "spunbond". Manufacture of fiber canvases "spunbond" is described in the U.S. patents: N 4340563, issued in the name of Appel and others, N 3692618, issued in the name of Dorsner etc. , N 3802817, issued in the name Matsuki, etc., N 3338992 and N 3341394, issued in the name Kinney, N 3502763, issued in the name Hartman, N 3276944, issued in the name Levi, N 3502538, issued in the name of Peterson, and N 3542615, issued in the name of Dub and others listed here as references. Filament obtained from the melt of the polymers according to the method of "spunbond", are generally continuous and have diameters of more than 7 microns, and more specifically, about 10-30 MK. Another frequently used expression of the diameter of the fibers or of filaments is denier, which determines the mass in grams of 9000 meters of fiber or of filaments. Filament "spunbond" is usually placed on a moving air-permeable transport is a rule do not have the ability to bonding, when they are stacked on the surface of the formation.

Materials "spunbond" is usually stable or consolidated (pre-bonded) in some way directly in the process of their formation in order to give the canvas a sufficient cohesion for stability rather hard conditions subsequent processing to the finished product. This type of stabilization (pre-bond) can be performed by using an adhesive composition applied to the filaments in the form of liquid or powder that can be thermophysiology, or more often by sealing shafts. The term "sealing rolls" here refers to a line of rollers positioned above and below the fiber canvas, used for sealing fiber canvas, as a way of processing the newly formed fibrous canvas of filaments from molten polymers, more specifically, fibrous canvas "spunbond" in order to give a fibrous canvas sufficient connectivity for further processing, not to lead to relatively strong bonding achieved at the final bond, by means of a continuous bond penetrating jets d is OLST for to increase its sameklesana and thus increase its relevance.

In an alternative embodiment, the pre-use fastening means in the form of "knife hot air", as described in detail in assigned in General the application for U.S. patent N 362328 registered 22.12.1994, which is incorporated into this description by reference. In short, the term "knife hot air" means a preliminary fastening the newly formed fibrous canvas of filaments from molten polymers, more specifically, fibrous canvas "spunbond" in order to give a fibrous canvas sufficient connectedness, i.e., to increase the strength of the fibrous canvas for subsequent processing, but not to lead to relatively strong bonding achieved at the final bond, as noted above. "Knife hot air" is a device which focuses a stream of hot air, moving at very high speeds, typically in the range of about 300 to 3000 m/min or, more specifically, about 900 to 1,500 rpm, and directed to fibrous canvas immediately after its formation. The temperature is usually within the point poC for thermoplastic polymers commonly used in the process of spunbonding". The control of temperature, speed, pressure, flow and other parameters allows to avoid damage to the fiber of the canvas, at the same time, increasing its relevance. A focused stream of air knife hot air" create and send at least one slot nozzle width of about 3-25 mm, more specifically about 9.4 mm, employees outlet for heated air in the direction of the fiber of the canvas, and the nozzle is moved mainly in the transverse direction mainly along the entire width of the fibrous canvas. In other variants can be used multiple nozzles located one after the other, or they may be separated by small gaps. At least one nozzle is usually, but not necessarily, is continuous and may contain, for example, closely spaced holes. "Knife hot air" has a collector that is designed for distribution and content of the heated air before it exits the nozzle. The pressure in the collector knife hot air" is usually around 2-22 mm Hg, and "knife hot air" feature approximately 6.35mm-254 mm, and baleage cross-section of the collector knife hot air" for the passage of air flow in the transverse direction (i.e., the cross-sectional area of the collector in the longitudinal direction of the machine) at least twice the total area of the living section of the nozzle. So as a breathable mesh conveyor on which form fibrous canvas "spunbond", usually move at high speed, the exposure time for each part of the fiber of the canvas of the air flow resulting from "knife hot air, usually less than a tenth of a second and is typically one hundredth of a second, in contrast to the method of fastening penetrating jets of air, in which the duration of exposure to hot air many times. The method using a "knife hot air" includes a wide range of regulation and control over many parameters, including temperature, speed, pressure and flow rate, the location of cracks or holes, their density and size, the gap between the collector knife hot air and fiber canvas.

The method of "spunbond" can also be used to form fibrous laps of bicomponent of filaments "spunbond" structure "side by side" (or "shirt-core") of polyethylene/polypropylene, low density. TEI described in U.S. patent N 5418045, issued in the name of Brazing and others, which are entirely included in the present description by reference. Technological line 10 (see Fig. 3) for forming such bicomponent of filaments and forming the resulting fleece contains two extruder 12a and 12b for a separate supply of polyethylene and polypropylene from the feeders 14a and 14b, respectively, to bicomponent filiere 18. Dies for forming bicomponent of filaments is well known in this industry, so they are not described here in detail. Usually filler 18 includes a housing containing a spinning block that includes multiple vertically stacked plates with holes arranged in accordance with a certain pattern, placed to create overpasses for threads to polymers with a high melting point and low melting point separately to wolochatiuk holes in filiere. Filler contains 18 holes in one or more rows, which form a downward curtain of filaments when the polymers ekstragiruyut through the die plate. As soon as the curtain of filaments released from the die 18, the threads begin to come into contact with sharply cooling flux is ina least partially pull filament and create in them the latent spiral crimp, starting from a Spinneret 18. Typically, the cooling air flow is directed perpendicular to the length of filaments at a speed of about 30-120 m/min at a temperature of about 7-32oC.

Camera extrusion of filaments, or aspirator 22 is Villeroy 18 and is designed to receive chilled elementary filaments. Camera extrusion of filaments, or suction, designed to extract spun from a melt of polymers of filaments, well known in this industry, as mentioned above. For example, the camera drawing of filaments suitable for use in this process include linear aspirator of filaments of the type described in U.S. patent N 3802817, issued in the name Matsuki and others, and the ejectors of the type shown in U.S. patent N 3692618, issued in the name of Dorsner etc. and N 3423266,

issued in the name of Davis and others, the description of which is entirely included in this patent as a reference. Camera extrusion of filaments 22, in General, includes an elongated passageway through which stretch filament exhaust gas flows through this passage. Exhaust gas is threads. From heater 24 serves heated exhaust gas to the exhaust chamber. As exhaust gas pulls the cooled filament and draws ambient air from the exhaust chamber 22, the filament is heated to the temperature required for the manifestation of hidden in them tortuosity. The temperature required for the manifestation of hidden in the elementary filaments tortuosity is approximately 43oC up to a maximum value that is less than the melting point of the polymer component with a low melting point, which in this case is polypropylene. Usually at a higher temperature produces a greater number of bumps per unit length of the filament. Alternatively, the curtain of filaments emerging from the Spinneret 18 may be subjected to extraction at ambient temperature, with the subsequent formation of fibrous canvas of substantially flattened or Naismith of filaments "spunbond".

Elongated and convoluted filament out of the camera drawing of filaments 22 and placed on the endless surface of the formation 26 randomly, usually by means of a vacuum device 30 positioned below the surface which is ntalnyh threads on the surface of the formation 26 for forming a uniform non-bound fibrous canvas of bicomponent of filaments. If desired, the resulting fibrous canvas can be lightly pressed with the sealing of the shaft 32 or knife hot air (not shown) before the fibrous canvas is exposed to the processing unit 34, creating loosed on the land plots in accordance with a certain pattern, in accordance with the present invention, as will be described below.

Fibrous webs, suitable for use in implementing the present invention can also be made from bonded fleece formed using carding machines, and aerodynamically shaped fleece, which is formed from staple fibers having a finite length. Require special attention when using these fleece for the manufacture of nonwoven loop materials with non-bound sites located in accordance with a certain pattern, made in accordance with the present invention, in order to appropriately adjust the size and density of individual loosed sites to maximize the number of individual fibers in the non-fastened plots containing at least one part ox the f fibrous webs, formed using carding machines, made from staple fibers, which are usually supplied in the form of bales. Bale set in Cyperaceae, which separates the fibers. Then the fiber is directed through ripping and rassasivayushee devices, which produce further loosening, separation and parallelization of staple fiber in the longitudinal direction of the machine for the formation of a General fiber of the canvas with a predominantly oriented fibers in its longitudinal direction. As soon as fibrous canvas formed, it can be pre-bonding, as described above.

Aerodynamic formation is the following well-known manner, whereby it is possible to form fibrous canvas. In this model the formation of complexes fibers of short length, with a typical length of the order of 6-19 mm, are to be separated and injected into the air stream, and then precipitated on the surface of the formation, typically by vacuum suction. Randomly laid fibers can then be pre-fastened to each other using well-known methods of fastening.

After the fibrous canvas-formed, pre-skraplania nonwoven loop material with non-bound areas, arranged in accordance with a certain pattern, in accordance with the present invention.

Method and apparatus for forming nonwoven loop material with non-bound sites located in accordance with a certain pattern, in accordance with the present invention, will now be described.

Apparatus for forming nonwoven loop material with non-bound sites located in accordance with a certain pattern, in accordance with the present invention, indicated in General poses.34 (see Fig. 4). The device comprises a first raskatnoe device 36 for the first fibrous canvas 38. Optional can be used one or more of rolled device 37 for canvases (depicted by the dotted line) for an extra fleece or layer 39 to form a multilayer laminates with non-bound sites located in accordance with a certain pattern. Note that, although the device shown in Fig. 4 shows raskatnoe device 36 for feeding fibrous canvas, unit 40 to create a nonwoven material containing non-bound areas located in accordance with the definition the non-woven material, described here as that shown in Fig. 3. The term "unit to create a nonwoven material containing non-bound areas located in accordance with a specific figure" should not be taken as a unit for separation, destruction or removal of an existing bond, if any, in the fibrous canvas 38; rather, the term "unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern" denotes a device that produces a continuous bond or straightening of fibers or of filaments, from which the formed fibrous canvas 38, in certain areas of fibrous canvas, and prevent the binding or fusion of the fibers or of filaments, of which is formed fibrous canvas 38, in other certain areas of fibrous canvas, and these areas are called here "bonded areas" and "non-bound areas, respectively.

The first fibrous canvas 38 (or simply fiber canvas, if you use only one raskatnoe installation) roll raskatnoe installing 36 and is introduced into the unit 40 to create a nonwoven fabric containing the Li patterned, the shaft 42 and the second, or reference, shaft 44, both the shaft lead using a conventional drive means, such as, for example, electric motors (not shown). Figured shaft 42 is a right circular cylinder, which may be made of any suitable durable material, such as steel, to reduce wear between the shafts during operation. On the patterned surface of the shaft 42 supporting the sections 46 are arranged according to a certain pattern and determine the number of separate holes 48. The support sections 46 are arranged in such a way as to form a sting together with smooth or smooth outer surface opposite the support shaft 44, which is also circular cylinder, which may be made of any suitable durable material.

The size, shape, number and location of holes 48 in a patterned shaft 42 can be modified to meet the specific requirements of the finished non-woven looped material containing non-bound areas located in accordance with a certain pattern produced by this shaft. In order to reduce the occurrence of extracting fibres from the finished hinge material, the size of the holes 48 is ntalnyh filaments or fibers, of which is formed loosed the plot were in the same loosed the plot. If we formulate the problem differently, the fiber length should be selected so as to reduce the likelihood that the entire length of the filament or the fibers were in the same loosed the plot. On the other hand, the desirability of limiting the size of the holes 48 in a patterned shaft 42 and loosed 8 plots generated by this device in looped nonwoven material 4 containing loosed on the land plots in accordance with a certain pattern, balanced by the need for non-bound sections 8 had sufficient size to provide the desired area of the mating sections for capture of U. elements of the mating hook material. Round hole 48 shown in Fig. 5, have an average diameter in the range of about 1.27 to 6.35 mm and more preferably 3,30-4,06 mm, and a depth, measured from the outer surface of a patterned shaft 42, at least about 0.51 mm or more, more specifically at least about 1.52 mm, are suitable for forming non-woven material containing non-bound areas located in accordance with opredelit shown in Fig. 5, the round can be successfully used other shapes, such as oval, square, diamond, etc.

The number or density of holes 48 in a patterned shaft 42 may also be selected so that, to create the required value of the square of interfacing with line items, without unduly restricting the size of the continuous bonded areas and assumptions of growth increase the likelihood of pulling out the fibers. Patterned rollers, with the density of the holes within about 1.0-25,0 1/cm2and more specifically about 5,0-7,0 1/cm2can be used for the successful formation material containing non-bound areas located in accordance with a certain pattern produced in accordance with the present invention.

In addition, the magnitude of the distances between the individual holes 48 can be selected in order to increase the coupling with a hook material ready looped material containing non-bound areas located in accordance with a certain pattern, without excessive reduction in the portion of material containing non-bound areas located in accordance with a particular pattern of consumption of the continuous bonded watersteam in the shown embodiment, may be about 3,30-5,59 mm along the axes of the holes in the longitudinal and transverse directions. The term "longitudinal direction" here means in the direction of the length of the material, i.e. in the direction in which it is produced (from left to right in Fig. 3). The term "transverse direction" refers to the width of the material, i.e., a direction predominantly perpendicular to the longitudinal direction.

Specific location, or configuration of apertures 48 in a patterned shaft 42, is not considered critical, because in combination with the hole size, shape and density of their location achieved the desired levels of surface integrity and durability and mates with a hook element. For example, as shown in Fig.5, a separate openings 48 are arranged in rows in a staggered manner (see also Fig. 1). Other excellent configuration was considered in the scope of the present invention.

Part of the outer surface of the patterned shaft 42, employed continuous support sections 46, can also be customized to meet the anticipated requirements of finished material containing non-bound areas located in accordance with a specific pattern, depending on its purpose. The degree of bonding, reported looped nonwoven material containing neske which can be expressed as a fraction of the space fasteners in percent, which means a portion of the total surface area of at least one side of the nonwoven material 4 containing loosed on the land plots in accordance with a certain pattern (see Fig. 1), which is occupied bonded areas 6. In General, the lower limit of the proportion of bonded area (in percent), suitable for the formation of 4 material containing non-bound areas located in accordance with a certain pattern, made in accordance with the present invention, is determined by the point at which the pulling of the fibers too much reduces surface cohesion and durability of the material containing non-bound areas located in accordance with a certain pattern. The required percentage of bonded area (in percent) depends on a number of factors, including the type (s) of polymeric materials used for forming fibres or of filaments constituting the fiber canvas, whether fibrous layer of one layer or multi - layer fibrous structure, the fibrous canvas is not bonded or pre-sealed before submitting it to the Assembly to create a nonwoven material containing non-bound areas located in accordance with opredelyonnye in accordance with a certain pattern, the area of the bonded areas which is approximately 25-50% or more, particularly of about 36-50%, is appropriate.

The temperature of the outer surface of the patterned shaft 42 can be adjusted by heating or cooling relative to the pivot shaft 44. Heating and/or cooling can affect the properties of the processed fiber of the canvas (the canvas) and the degree of bonding a single canvas or multiple fleece passed through the sting formed between interacting figured shaft 42 and the support shaft 44. In the embodiment shown in Fig. 4, for example, both the shaft: a patterned shaft 42 and the shaft 44 is heated, preferably to the same temperature bonding. Special temperature limits that are used when forming the non-woven loop material containing non-bound areas located in accordance with a certain pattern, dependent on a number of factors, including the types of polymeric materials used in the formation of a material containing non-bound areas located in accordance with a certain pattern, the magnitude of the input or linear velocity (speed) of fibrous canvas (canvas), passing through the sting formed by cooperation between the om 42 and the support shaft 44.

The shaft 44 shown in Fig.4, has an outer surface that is substantially smoother than the surface of the patterned shaft 42, and is preferably smooth or smooth. You can, however, on the outer surface of the supporting shaft 44 to perform easy drawing and to consider its still smooth or smooth from the perspective of the present invention. For example, if the supporting shaft 44 is made of/or has a softer surface, such as impregnated with rubber, cotton or rubber, it will create an uneven surface, although it will still be considered as smooth or smooth with positions of the present invention. Such surface in the group are deemed to be "flat". The shaft 44 provides the basis for a patterned shaft 42 and fibrous canvas or canvases, which are in contact with him. Usually the shaft 44 is made from steel or from materials such as hard rubber, treated rubber cotton or polyurethane.

In an alternative embodiment, the shaft 44 may be replaced by a patterned shaft (not shown) having a pattern of continuous reference stations, determining a number of separate holes in it, as in the above-described patterned shaft 42. In this case, agrega the m pattern, would include a pair rotate in opposite directions, a patterned shaft, which will create a pattern of continuous bonded areas defining a number of separate non-bound sites located on both top and bottom surfaces of the nonwoven loop material containing non-bound areas located in accordance with a certain pattern. Rotation located one against the other patterned shafts can be synchronized so that the resulting non-fastened portions on the surfaces of a material containing non-bound areas located in accordance with a certain pattern, combined vertically or draw together.

Figured shaft 42 (see Fig. 4) and the support shaft 44 rotate in opposite directions to one another so as to stretch the fibrous canvas (or canvases) through the sting defined by them. Figured shaft 42 has a first rotational speed, measured on its outer surface, and the shaft 44 has a second speed of rotation, measured on its outer surface. In the present embodiment, the first and second speed substantially the same. However, the speed presence in opposite directions shafts.

Location oppositely installed figured shaft 42 and a supporting shaft 44 can be varied to create a square tip 50 between the shafts. The pressure in the tip within the tip 50 can be changed depending on the properties of the fiber of the canvas or the canvas and on the desired degree of bonding. Other factors that may allow the variation of the pressure in the sting, include temperature, a patterned shaft 42 and the support shaft 44, the size and arrangement of holes 48 patterned on the shaft 42, as well as the types of polymeric materials used to form the nonwoven material containing non-bound areas located in accordance with a certain pattern. From the point of view of the degree of bonding, reported looped nonwoven material containing non-bound areas located in accordance with a certain pattern, through the continuous bonded areas, it is desirable that the material containing non-bound areas located in accordance with a certain pattern, was entirely bonded or straightened on the parts of the fasteners so that the polymeric material is not preserved in the form of fibers. This high degree of bonding is important for the stabilization of h and reduce the likelihood of extrusion of the fibers, when the hook elements are disconnected from individual non-bound sites.

Once looped nonwoven material containing non-bound areas located in accordance with a certain pattern, made in accordance with the present invention, is formed, it can be attached to the covering material or the water-absorbing lining products for personal hygiene, such as a disposable diaper 60, shown in Fig.6. More specifically, looped nonwoven material containing non-bound areas located in accordance with a certain pattern, attached to the outer surface so that at least one surface of the nonwoven loop material containing non-bound areas located in accordance with a specific image with a pattern of continuous bonded areas defining a number of separate non-bound areas, is open. Non-woven stitch material containing non-bound areas located in accordance with a certain pattern, can be attached to the outer shell 62 of the diaper 60 using known fastening means, including bonding, thermal bonding, ultrasonic fastening, or whom the AZE solvents, water, melting and pressing of sensitive adhesives. Powder adhesives can be applied to non-woven looped material containing non-bound areas located in accordance with a certain pattern, and then heated for transfer to the active state of the powder adhesive and secure gluing.

The diaper 60, which is typical for most water-absorbing articles of personal hygiene, contains moisture-permeable lining 64 facing the user's body, and water-resistant outer coating 62. Various woven or non-woven materials can be used for the manufacture of the lining 64 facing the user's body. For example, the lining facing the user's body may consist of a nonwoven fibrous canvas "meltblown" or "spunbond" from polyolefin fibers, or stapled canvas with carding machines of natural and/or synthetic fibers. The lid 62 is typically made of a thin thermoplastic film such as polyethylene film. The outer coating of the polymer film may be embossed and/or matte finish to give a more aesthetic appeal. Other alternative structures constructed or treated to impart a desired level of moisture resistance, or laminates formed from fabrics or non-woven materials and thermoplastic film. The coating 62 may selectively consist of vapor - or gas-permeable breathable material that is permeable to vapor or gas and, at the same time, substantially impervious to liquid. Breathable properties can be attached to polymeric films, for example, by the use of fillers in the composition of the polymer film, and during extrusion of the composition of the filler-polymer in the form of a film and then stretching the film to a sufficient extent to create a cavity around the filler particles, generating thus a "breathing" ability of the film. Generally, the more use of the filler and the greater the degree of drawing, the more breathable the ability of the film.

Between the lining 64 and outer surface 62 is the absorbent pad 66 is formed, for example, of a mixture of hydrophilic cellulosic wood pulp fluff fibers and having a high absorbent capacity of the gel particles (e.g., superabsorbent). The absorbent pad 66 is generally compressible, comfortable, not disturbing the skin of the user and is able to absorb and retain liquid excretions of the body. This from the separate pieces of material. The size and absorbent capacity of the absorbent pad 66 should be comparable to the size of the intended user and the amount of fluid that may produce the intended user of the diaper 60.

The elastic elements can be selectively located near each longitudinal edge 68 of the diaper 60. Each elastic element is located so as to pull and hold the side edge 68 of the diaper 60 on the leg of the user. In addition, the flexible elements can also be located near one or both belt edges 70 in order to form an elastic waistband.

The diaper 60 may also include randomly cumulative wings 72, made of/or attached to the lining 64 facing the user's body. Suitable structures and devices of this wing is described, for example, in U.S. patent N 4704116, issued in the name of Enloe, the description of which is fully included in an issued patent as a reference.

To secure the diaper 60 on the body of the user, the diaper must be fastened tools of any type, fixed on her. As shown in Fig. 6, fastened tools made in the form fastened system "hook-loop" that includes krsnas part of the diaper 60, and one or more hinge elements or strips 76, made of non-woven loop material containing non-bound areas located in accordance with a certain pattern, made in accordance with the present invention attached to the outer surface of the outer cover 62 on the front waist portion of the diaper 60.

To implement the above-mentioned embodiments of the present invention a number of looped nonwoven materials containing non-bound parcels located, in accordance with a certain pattern, together with those of previously known non-woven materials, was prepared for the further illustration of the present invention. These samples were tested to determine the resistance to tear and tensile shear samples of materials.

The resistance to disengagement of the hinge material is a measure of its functional purpose. More specifically, the resistance to separation is the term used to describe the amount of force needed to detach from each other covered and covering components fastened system "hook-loop". One way of measuring the resistance to separation is Ott the e strength fastened system "hook-loop". Cutting strength is measured by pairing covered and covering components and application efforts in the plane defined by the coupling surface, to separate these two components.

Description of the used test methods for evaluating properties of individual samples looped nonwoven materials containing non-bound areas located in accordance with a certain pattern, made in accordance with the present invention, is shown below.

Test method

The surface density

The surface density of the various materials described herein were determined in accordance with the Federal test procedure N A/5041. The dimensions of the test specimens of the materials was 152,h,4 mm, was tested three samples of each material and then determined the average value. Values given below are average values.

Dimensions

The volume of the test materials, which is expressed in thickness, was measured by a tester volume type "Starred" at a pressure of 35 g/cm2.

Tests for resistance to separation at the angle 180o< / BR>
Tests for resistance to separation at the angle 180oinclude the m OTDELENIE hook material from the loop material at an angle 180o. The maximum load required to separate the materials recorded in grams.

To perform the tests used breaking machine with constant speed tensile specimens, with full scale up to 5000 grams, such as "Syntech Systems 2" - integrated measuring system with a computer supplied by the company "Shintech Inc. "having a representative office in Research Triangle Park, PCs North Carolina. Sample looped material with dimensions h mm was placed on a flat, adhesive bearing surface. A sample of the hook material with dimensions h,5 mm, which with the help of bonding and ultrasonic treatment was attached to practically inextensible woven material, were placed on top and pressed to the upper surface of the sample looped material. To ensure adequate and uniform coupling hook material looped material used manual packer roller weighing 2.4 kg, which rolled over the United specimens hook and loop materials one cycle and produced one cycle of prokachivanija manual roller forward and backward to adjust. One end of the attached material carrying the looped material, recorded in the Wei down and recorded in the lower clamp of the bursting machine. Consolidation of relevant materials in the clips breaking the machine should be adjusted so that the minimum slack was appropriate materials to enable the bursting machine. Hook elements of the hook material oriented in a direction predominantly perpendicular to the intended direction of travel of the clamps of the bursting machine. Breaking machine worked with the moving speed of the movable clamp 500 mm/min, and the maximum load in grams required to end a hook material from the loop material at the angle of separation 180orecorded.

Test dynamic tensile shear

Test dynamic tensile shear include the connection of the hook material and loop material fastened system "hook-loop" with the subsequent pulling hook material in the transverse direction to the surface of the looped material. The maximum load required to separate the hook material from the loop material was recorded in grams.

To conduct these tests used a tensile machine at a constant speed tensile specimens, with full scale up to 5000 g, takanari h mm was placed on a flat, adhesive bearing surface. A sample of the hook material with dimensions h,5 mm, which with the help of bonding and ultrasonic treatment was attached to practically inextensible woven material, were placed on top and pressed to the upper surface of the sample looped material. To ensure adequate and uniform coupling hook material looped material used manual packer roller weighing 2.4 kg, which rolled over the United specimens hook and loop materials five cycles, and produced one cycle of prokachivanija manual roller forward and backward to adjust. One end of the non-woven fabric carrying krukovii material, fixed in the upper jaw breaking machine, and the end of loop material directed towards the bottom of the clip, recorded in the lower clamp of the bursting machine. Consolidation of relevant materials in the clips breaking the machine should be adjusted so that the minimum slack was appropriate materials to enable the bursting machine. Hook elements of the hook material oriented in a direction predominantly perpendicular to the intended direction of travel of the clamps R the th load in grams, required to end a hook material from the loop material was recorded.

Examples

A total of 18 samples looped nonwoven materials containing non-bound areas located in accordance with a certain pattern, and 3 comparative sample of non-woven materials is presented below. Test materials containing non-bound areas located in accordance with a certain pattern, made to illustrate specific embodiments of the present invention and to show the average specialist in this industry for a method of performing the present invention. Comparative examples a-C are designed to illustrate the advantages of the present invention.

Samples of nonwoven loop materials containing non-bound areas located in accordance with a certain pattern, all were formed using the method and device described herein and shown in Fig. 3-5. During the formation of each sample material containing non-bound areas located in accordance with a certain pattern, fibrous canvas "spunbond" of the matrix of filaments, or laminate PR is SunCity shaft and the support shaft. The outer surface of the patterned shaft contained reference sites located in accordance with a certain pattern, determining a number of separate holes. Reference plots were about 36% of the total area of the outer surface of a patterned shaft. Openings in a patterned shaft were round and were rows are offset in a staggered manner, had an average diameter 4,06 mm, had a depth of 1.52 mm, and the density of their location was 5 resp./cm2. Center distance of holes were made 4,06 mm in the longitudinal direction and a 4.83 mm in the transverse direction. The outer surface of the support shaft was substantially smooth.

Comparative examples a-C

Three single-layer fibrous canvas "spunbond" of the matrix of filaments with different surface density were formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045, issued in the name of Brazing and other Polymer components of the bicomponent of filaments were used in the ratio of 50: 50 (by weight) and are located in the structure of "side by side". Bicomponent filament had a mainly circular cross section. Polymer to the Yong low pressure with a normal chain brand A (LLDPE) - 98% and TiO2- 2%, in which TiO2is a concentrate containing 50% (by weight) TiO2and 50% (by mass) of polypropylene. The temperature of the cooling air under villeroi was about 15oC and the temperature of the exhaust air coming into the chamber of the extrusion of the fibers, was 177oC. Fibrous canvases "spunbond" of the matrix of filaments were thermally bonded by spot bonding after forming to obtain a nonwoven fabric with a dotted bond, the total area of the bond which was about 15%.

An example of a

Single-layer fibrous canvas "spunbond" of the matrix of filaments of comparative example a was transformed into a looped nonwoven material containing non-bound areas located in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. Both shafts: a patterned shaft and the shaft is heated to a temperature of about 126oC. the pressure in the sting between patterned and the supporting shafts was about 28 kg/cm2. After testing materials sravnitel contained significantly less free of filaments in the non-fastened parts, confirming the reduction of the stretching of the fibers, resulting from the use of the present invention.

The example IN

Single-layer fibrous canvas "spunbond" of the matrix of filaments of comparative example a was transformed into a looped nonwoven material containing non-bound areas located in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sites located in accordance with a certain pattern were the same as in example a above, except that both shafts: patterned and support is heated to a temperature of 128oC. After the test materials of the comparative example and the example In the resistance to peeling and cutting strength described above, the latter material contained significantly less free of filaments loosed on the land, confirming the reduction of the stretching of the fibers, resulting from the use of the present invention.

Example WITH

Single-layer voloknistoyj looped material, contains loosed on the land plots in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern were the same as in the example As described above. After testing of materials of comparative example C and example for resistance to tearing and cutting strength described above, the latter material contained significantly less free of filaments loosed on the land, confirming the reduction of the stretching of the fibers, resulting from the use of the present invention.

Example D

Single-layer fibrous canvas "spunbond" of the matrix of filaments was formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments were the same as in the examples above. Fibrous canvas "spunbond" of the matrix of filaments has not been thermally bonded point starnik yarn was converted into a looped nonwoven material, contains loosed on the land plots in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. Patterned and supporting rollers heated to a temperature of 132oC, the pressure in the sting between patterned and the supporting shafts was about 49 kg/cm2and the linear speed of the fibrous canvas "spunbond" of the matrix of filaments at the entrance to the sting shaft was about 19 m/min

Example E

Single-layer fibrous canvas "spunbond" of the matrix of filaments was formed as described above in example D, and converted into non-woven looped material containing non-bound areas located in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sites located in accordance with a certain pattern, were the same as in example D, above, except that the linear speed of the pitch.

Example F

Two-layer nonwoven laminate material was produced using the first and second fibrous laps "spunbond" of the matrix of filaments formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments separate nonwoven layers were the same as in the examples above. None of fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming. In this example, the surface density and the dimensions of the matrix of filaments, from which were formed the first and second fibrous canvases "spunbond" of the matrix of filaments, were the same.

The first fibrous canvas "spunbond" of the matrix of filaments was transformed into a non-woven layer containing non-bound areas located in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. Then formirovaniya canvas, contains loosed on the land plots in accordance with a certain pattern, and the first and second nonwoven layers are then combined together to form a laminate by passing through the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern, were the same as in example D, above.

Example G

Two-layer nonwoven laminate material was made using the first fibrous canvas "spunbond" of the matrix of filaments formed from a continuous Naismith matrix of filaments from molten polymer, and the second fibrous canvas "spunbond" of the matrix of filaments formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments separate fleece were the same as in the examples above. None of fibrous canvas "spunbond" of the matrix of filaments was not scriptcomponent of filaments, of which were formed of the first and second fibrous canvases "spunbond" of the matrix of filaments, different in properties.

The first fibrous canvas "spunbond" of the matrix of filaments with lower surface density, smaller fibers was transformed into a non-woven layer containing: loosed on the land plots in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. Then formed the second fibrous canvas "spunbond" with a higher surface density of the matrix of filaments with a higher linear density and laid on top of the first fibrous canvas containing loosed on the land plots in accordance with a certain pattern. The second layer is spunbond" of the matrix of filaments pre-bonded using "knife hot air", located at a distance of 38.1 mm above subjected to the processing surface of the second layer "spunbond". "Knife hot air" directed stream of air heated to a temperature of about slo 2 mm Hg. The first and second nonwoven layers are then combined together to form a laminate by passing through the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern, were the same as in example D, above, except that a patterned shaft and the shaft was heated to a temperature of about 128oC. When tested for resistance to peeling and cutting strength, the second fibrous canvas "spunbond" of the matrix of filaments connected in line with elements of the test hook material.

Example H

Single-layer fibrous canvas "spunbond" of the matrix of filaments was formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments were the same as in the examples above. Fibrous canvases "spunbond" of the matrix of filaments were pre-bonded using a knife hot air", the Los Angeles who's threads. "Knife hot air" directed stream of air heated to a temperature of about 211oC width of the canvas "spunbond". The pressure of hot air in the collector knife hot air" was 2 mm Hg. Fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming.

Single-layer fibrous canvas "spunbond" of the matrix of filaments was transformed into a looped nonwoven material containing non-bound areas located in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern, were the same as in example G, described above, except that the linear speed of the fibrous canvas "spunbond" of the matrix of filaments at the entrance to the sting shaft was about 14 m/min.

Example I

Two-layer nonwoven laminate material was made using the first fibrous canvas JV is ntalnyh filaments from molten polymers, and second fibrous canvas "spunbond" of the matrix of filaments formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments were the same as in the examples above. None of fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming. In this example, the surface density and the dimensions of the matrix of filaments, from which were formed the first and second fibrous canvases "spunbond" of the matrix of filaments, different in properties.

The first fibrous canvas "spunbond" of the matrix of filaments with lower surface density, smaller size fibers were formed. Then formed the second fibrous canvas "spunbond" with a higher surface density of the matrix of filaments with a higher linear density and laid on top of the first fibrous canvas containing loosed on the land plots in accordance with a certain pattern. The second layer is spunbond" of bicomponent the layers joined together to form a laminate by passing through the unit to create a nonwoven material, contains loosed on the land plots in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern, were the same as in example G. When tested for resistance to peeling and cutting strength, the second fibrous canvas "spunbond" of the matrix of filaments connected in line with elements of the test hook material.

Example J

Two-layer nonwoven laminate material was made using the first fibrous canvas "spunbond" of the matrix of filaments formed from a continuous Naismith matrix of filaments from molten polymer, and the second fibrous canvas "spunbond" of the matrix of filaments formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments were the same as in the examples above. None of fibrous canvas of bicomponent spunbond of filaments was not bonded thermally point bonding after forming. This is the first and the second fibrous canvases "spunbond" of the matrix of filaments, differed in properties.

Was formed first fibrous canvas "spunbond" of the matrix of filaments with lower surface density and smaller size fibers. Then formed the second fibrous canvas spunbond with a higher surface density of the matrix of filaments with a higher linear density and laid on top of the first nonwoven layer containing non-bound areas located in accordance with a certain pattern. The second layer is spunbond" of the matrix of filaments was pre-bonded as in example G, described above, except that the knife hot air" was located at a distance of 27.0 mm above subjected to the processing surface of the second fibrous canvas and sent a stream of air heated to a temperature of about 118oC, width of woven canvas "spunbond". The first and second nonwoven layers are connected together to form a laminate by passing through the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sites hosted in zootomy shaft was heated to a temperature of about 138oC and the pressure in the sting between patterned and the supporting shafts was about 56 kg/cm2. When tested for resistance to peeling and cutting strength of the second non-woven fibrous canvas "spunbond" of the matrix of filaments connected in line with elements of the test hook material.

Example TO

Single-layer fibrous canvas "spunbond" of the matrix of filaments was formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments were the same as in the examples above. Fibrous canvas "spunbond" of the matrix of filaments was pre-bonded using a knife hot air" under the conditions described in example J, except that the knife hot air" was located at a distance of about 38,1 mm Fiber canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming.

Single-layer fibrous canvas "spunbond" of the matrix of filaments was transformed into a non-woven looped material, containing the and to create a non-woven material, contains loosed on the land plots in accordance with a certain pattern described here. Figured shaft and the shaft was heated to a temperature of about 127oC. the pressure in the sting between patterned and the supporting shafts was about 49 kg/cm2. The linear speed of the fibrous canvas "spunbond" of the matrix of filaments at the entrance to the sting shaft was about 13 m/min

Example L

Two-layer nonwoven laminate material was made using the first fibrous canvas "spunbond" bond" of the matrix of filaments formed from a continuous Naismith matrix of filaments from molten polymer, and the second fibrous canvas "spunbond" of the matrix of filaments formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments separate fleece were the same as in the examples above.

None of fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming. In this example, Povray fibrous canvases "spunbond" of the matrix of filaments, differed in properties.

The first fibrous canvas "spunbond" of the matrix of filaments with lower surface density, smaller size fibers were formed. Then formed the second fibrous canvas "spunbond" with a higher surface density of the matrix of filaments with a higher linear density and laid on top of the first fibrous canvas containing loosed on the land plots in accordance with a certain pattern. The second layer is spunbond" of the matrix of filaments pre-bonded using "knife hot air" under the terms and conditions made in the example described above. The first and second nonwoven layers are connected together to form a laminate by passing through the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. Figured shaft and the shaft was heated to a temperature of about 128oC. the pressure in the sting between patterned and the supporting shafts was about 56 kg/cm2. The linear speed of the fibrous canvas "spunbond" of the matrix of filaments at the entrance to the sting shaft was the eye of the C matrix of filaments connected in line with elements of the test hook material.

Example M

Two-layer nonwoven laminate material was made using the first fibrous canvas "spunbond" of the matrix of filaments formed from a continuous Naismith matrix of filaments from molten polymer, and the second fibrous canvas "spunbond" of the matrix of filaments formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments were the same as in the examples above. None of fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming. In this example, the surface density and the dimensions of the matrix of filaments, from which were formed the first and second fibrous canvases "spunbond" of the matrix of filaments, different in properties.

Was formed first fibrous canvas "spunbond" of the matrix of filaments with lower surface density and smaller fibers. Then formed the second fibrous canvas "spunbond" higher fell on top of the first fibrous layer, contains loosed on the land plots in accordance with a certain pattern. The second layer is spunbond" of the matrix of filaments was pre-bonded using a knife hot air under the same conditions, which have been performed in example L above. The first and second nonwoven layers are connected together to form a laminate by passing through the unit to create a nonwoven material containing unfortified sites located in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern, were the same as in example L, except that the linear speed of the fibrous canvas "spunbond" of the matrix of filaments at the entrance to the sting shaft was about 21 m/min When tested for resistance to peeling and cutting strength, the second fibrous canvas spunbond from biocomponent of filaments connected in line with elements of the test hook material.

Example N

Single-layer fibrous canvas "spunbond" of the matrix of filaments was formed from a continuous winding of bicomponent is the shaft of filaments were the same as in the examples above. Fibrous canvas "spunbond" of the matrix of filaments was pre-bonded using a knife hot air" under the conditions described in example K, except that the pressure in the reservoir was 2.6 mm Hg. Fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming.

Single-layer fibrous canvas "spunbond" of the matrix of filaments was transformed into a looped nonwoven material containing non-bound areas located in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. Figured shaft and the shaft was heated to a temperature of about 128oC. the pressure in the sting between patterned and the supporting shafts was about 56 kg/cm2. The linear speed of the fibrous canvas "spunbond" of the matrix of filaments at the entrance to the sting shaft was about 20 m/min.

Example OF

Two-layer nonwoven laminate material was produced in the x of the continuous convoluted matrix of filaments from molten polymers, and second fibrous canvas "spunbond" of the matrix of filaments formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments separate fleece were the same as in the examples above. None of fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming. In this example, the surface density and the dimensions of the matrix of filaments, from which were formed the first and second fibrous canvases "spunbond" of the matrix of filaments, different in properties.

Was formed first fibrous canvas "spunbond" of the matrix of filaments with lower surface density, smaller fibers. Then formed the second fibrous canvas "spunbond" with a higher surface density of the matrix of filaments with a higher linear density and laid on top of the first fibrous canvas containing loosed on the land plots in accordance with a certain pattern. The second layer is between a pair of rotating in opposite directions sealing or pressure rolls. The pressure in the sting, formed by sealing the shaft was about 53 kg/cm2. The first and second nonwoven layers are connected together to form a laminate by passing through the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern, were the same as in example M, described above. When tested for resistance to tearing and cutting strength, the second fibrous canvas "spunbond" of the matrix of filaments connected in line with elements of the test hook material.

Example R

Single-layer fibrous canvas "spunbond" of the matrix of filaments was formed from a continuous Naismith matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments were the same as in the examples above. Fibrous canvas "spunbond" of the matrix of filaments was pre-bonded using a knife hot air", which was located to be the air, had a temperature of about 118oC. the pressure of the hot air in the collector knife hot air" was 2 mm Hg. Fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after normalization.

Single-layer fibrous canvas "spunbond" of the matrix of filaments was transformed into a looped nonwoven material containing non-bound areas located in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern were the same as in the example described above.

Example Q

Two-layer nonwoven laminate material was made using the first fibrous canvas "spunbond" of the matrix of filaments formed from a continuous Naismith matrix of filaments from molten polymer, and the second fibrous canvas "spunbond" of the matrix of filaments formed from the 8045. The polymer components of the bicomponent of filaments were the same as in the examples above. None of fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming. In this example, the surface density and the dimensions of the matrix of filaments, from which were formed the first and second fibrous canvases of bicomponent spunbond of filaments, different in properties.

The first fibrous canvas "spunbond" of the matrix of filaments with lower surface density, smaller fibers was formed and pre-bonded using a knife hot air under the same conditions, which were performed in the example of P described above. Then the second fibrous canvas "spunbond" of the matrix of filaments with a higher surface density, higher settings of the fiber was formed and stacked on top of the first nonwoven layer containing non-bound areas located in accordance with a certain pattern, and the first and second layers have been joined together to form a laminate by passing through the unit to create nerkayanum here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern, were the same as in example L above. When tested for resistance to tearing and cutting strength of the second fiber canvas "spunbond" of the matrix of filaments connected in line with elements of the test hook material.

Example R

Single-layer fibrous canvas "spunbond" of the matrix of filaments was formed from a continuous convoluted matrix of filaments from molten polymers as described in U.S. patent N 5418045. The polymer components of the bicomponent of filaments were the same as in the examples above. Fibrous canvas "spunbond" of the matrix of filaments was pre-bonded using a knife hot air under the conditions described in example P, except that the knife hot air" was located at a distance of about 17,8 mm from the surface of the fibrous canvas and the pressure in the reservoir amounted to 1.4 mm Hg. Fibrous canvas "spunbond" of the matrix of filaments was not bonded thermally point bonding after forming.

Oddly material, contains loosed on the land plots in accordance with a certain pattern, by use of the unit to create a nonwoven material containing non-bound areas located in accordance with a certain pattern described here. The conditions of forming the non-bound sections, placed in accordance with a certain pattern, were largely the same as in the example described above.

Example S

Two-layer nonwoven laminate material was made using fleece "spunbond" of the matrix of filaments with different surface density, formed from a continuous matrix of filaments from molten polymers as described in U.S. patent N 5418045, issued in the name of Brazing and other Polymer components of the bicomponent of filaments were used in the ratio of 50:50 (by weight), are located in the structure of "side by side". Bicomponent filament had a mainly circular cross section. Polymer components were: (a) polypropylene brand 3445 company Exxon chemical Co. - 99% and titanium dioxide (TiO2) - 1%; (b) low-density polyethylene with a normal chain brand A (LLDPE) - 78% and polymeric Co." from social Markl, pieces of Georgia. The block copolymer KRATON brandcan be supplied in several different formulations, some of which are disclosed in U.S. patent N 4663220, N 4323534, N 4834738, N 5093422 and N 5304599 listed as references.

Fibrous canvases "spunbond" of the matrix of filaments were thermally point bonded by bonding after forming to obtain a nonwoven fabric with a dotted bond, the total area of the bond which was about 35%.

The above-described examples and comparative material had the following properties (see table).

Although a specific value of resistance to tear and tensile shear were achieved for the above-described examples, looped nonwoven material containing non-bound areas located in accordance with a certain pattern, made in accordance with the present invention should not be limited to these values. Usually looped material containing non-bound areas located in accordance with a certain pattern must have a combination of resistance to tear and tensile shear, which is suitable for the proposed final destination. More specifically, the stability of the attachment. Similarly, the strength of the slice within 600-2500 g or above is considered to be suitable for use in the present invention. Similarly, the total surface density of loop material containing non-bound areas located in accordance with a certain pattern may be selected for its proposed end use. The total surface density in the range of about 20-100 g/m2and more particularly in the range 20-70 g/m2that is deemed suitable for use in the present invention.

It can be assumed that the hinge material containing non-bound areas located in accordance with a certain pattern, made in accordance with the present invention, may be designed and adjusted according to the properties of an ordinary person skilled in the art to meet the different levels of requirements during actual use. Accordingly, although the present invention is described with reference to the above options and examples, it is obvious that the present invention can be subjected to further modifications. This proposal, therefore, encompasses any variations, uses or applications of narity of the invention, who are subject to known or used in practice in the area of production, belongs to the present invention and falls within the limits covered by the attached claims.

1. Non-woven material containing non-bound areas located in accordance with a certain pattern containing a first fiber canvas, having a fibrous structure consisting of individual fibers or of filaments, and a certain volume, comprising at least about 0,254 mm and a surface density of at least about 20 g/m2as well as having on its surface a continuous bonded areas located in accordance with a certain pattern, determining a number of separate non-bound sections formed by application of heat and pressure, while the bonded area of the fibrous canvas is about 25 to 50%, and the individual fibers or filament in a separate non-bound sites at least partially act/and secured in a continuous bonded areas.

2. Non-woven material under item 1, in which the fibrous canvas is bonded area constituting about 36 to 50%.

3. the Yu to break, component of at least 50,

4. Non-woven material under item 1, in which the fibrous canvas contains a filament, formed from molten polymers.

5. Non-woven material under item 1, in which the fibrous canvas contains staple fibers.

6. Non-woven material on p. 4, in which the fibrous canvas contains a multicomponent filament, formed from molten polymers.

7. Non-woven material under item 1, comprising a film layer attached to the surface of the nonwoven fabric opposite the surface on which the continuous bonded areas located in accordance with a certain pattern, determining a number of separate non-bound sites.

8. Non-woven material on p. 1 containing the second non-woven canvas, having a fibrous structure consisting of individual fibers or of filaments, the first and second fibrous webs, laid one upon the other.

9. Non-woven material under item 8, in which individual fibers or filament of the first fibrous canvas have the same linear density, and a separate fiber or filament of the second fibrous canvas have second linear PLO is ness, and the second fibrous canvas has a second surface density different from the first surface density.

10. Mechanically fastened system, comprising: a covered component; covering component suitable for coupling with the possibility of separation from the covered component, while covering component includes a non-woven material containing non-bound areas located in accordance with a certain pattern, under item 1.

11. Water-absorbing product is disposable, containing nonwoven material containing non-bound areas located in accordance with a certain pattern, under item 1.

12. Water-absorbing product is disposable, containing: the lining facing the user's body; the outer covering material; an absorbent structure located between the lining and the outer covering material; mechanically fastened the strap is attached to the product, and fastened strap includes a covered component; covering component that is attached to the outer covering material and suitable for coupling with the possibility of separation from the covered component, while Katya is a certain pattern, under item 1.

13. The method of forming a nonwoven fabric containing non-bound areas located in accordance with a certain pattern, which includes the following steps: forming a first fibrous canvas, having a fibrous structure consisting of individual fibers or of filaments; the supply of fibrous canvas in jalhay, formed opposing first and second shafts, the first shaft includes a patterned outer surface, and the second shaft has a smooth outer surface; rotating the first and second shafts in opposite directions; bond fibrous canvas by application of heat and pressure for the formation on the surface of the canvas pattern of continuous bonded areas defining a number of separate non-bound areas; while the bonded area of the fibrous canvas is about 25 to 50%; at least part of the individual fibers or of filaments in a separate non-bound sites is/and is fixed in the continuous bonded areas.

14. The method according to p. 13, comprising the following steps: feeding fibrous canvas in the sting between the first and second shafts, the first and second shafts have figured naruga least two surfaces of canvas pattern of continuous bonded areas, determining a number of separate non-bound sites.

15. The method according to p. 13, comprising the following steps: forming a second fibrous canvas with fibrous structure of individual fibers or of filaments; applying the first and second fibrous laps in the sting shaft; bonding the first and second fibrous laps together to form a nonwoven laminated material containing non-bound areas located in accordance with a specific pattern.

16. The method according to p. 15, comprising the following steps: forming a first fibrous canvas consisting of fibers or of filaments of the first size and having a first surface density; forming a second fibrous canvas consisting of fibers or of filaments of a second size, different from the first size of the fibers or of filaments and having a second surface density different from the first surface density.

17. The method according to p. 13, containing the preliminary bonding of the first fiber of the canvas.

18. The method according to p. 15, containing the pre-bonding at least one of the first sludge is, containing filament, formed from molten polymers.

20. The method according to p. 19, containing the step of forming the non-woven layer containing multicomponent filament, formed from molten polymers.

21. The method according to p. 20, containing the step of forming the non-woven layer containing multicomponent twisted filament, formed from molten polymers.

 

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