Methods of manufacturing multilayer elastomeric laminates, and laminates

FIELD: technological processes.

SUBSTANCE: invention relates to a method of forming a multilayer elastomeric laminate for clothes and a hygienic product, to a multilayer elastomeric laminate and an article made therefrom. The method involves the following: a) laminating an elastomeric film onto a first substrate to form a laminate web having an elastomeric film surface, where the elastomeric film contains an elastomeric polymer selected from a group consisting of block copolymers of vinyl arylene and conjugated diene monomers, natural rubber, polyurethane rubber, polyester rubber, elastomeric polyolefins, elastomeric polyamides and mixtures thereof, and the first substrate is made from a polymer film, non-woven fabric, a paper article, woven fabric, knitted fabric, scrim, netting or a combination thereof; b) slitting the laminate web to form laminate strips; and c) bonding the surface of the elastomeric film of at least one laminate strip with a second substrate having a width greater than the width of the laminate strip to form a multilayer elastomeric laminate, where the second substrate is made from a polymer film, non-woven fabric, a paper article, woven fabric, knitted fabric, scrim, netting or a combination thereof.

EFFECT: efficient manufacturing of an elastomeric film having good elastomeric properties and good-looking surface structure after activation, which can be rolled and stored without monitoring.

20 cl, 6 dwg

 

The technical field to which the invention relates.

The present invention relates to a method of manufacturing a multilayer elastomeric laminates and associated with multilayer elastomeric laminates. In specific embodiments implementing the invention relates to such laminates in the form of strips and methods of production of such laminates in the form of strips.

The prior art to which the invention relates.

Elastomeric materials has long been valued for their ability to stretch, sitting on top of or around the larger size of the object, and then to decline, providing a tight fit around the object. This quality has been appreciated for centuries.

In recent years, synthetic polymeric elastomeric materials supplemented or replaced natural rubber. Compounds such as polyurethane, copolymers of styrene, ethylene-propylene rubbers and other synthetic polymeric elastomers are well known in this field.

Elastomeric materials can take many forms. The elastomers can be shaped in the form of threads, cords, tapes, films, fabrics and various other species. The form and structure of the elastomeric material is regulated by the intended end use of the product. For example, the elastomers are often used in clothing to ensure a tight fit, tcog is as active wear. Elastomers can also form a flexible but effective barriers, such as cuffs, thermal clothing, designed to preserve body heat. In these applications elastomers are most often exist in the form of threads or filaments which enter into the fabric of clothing.

One example of a type of service for which important as fit and barrier properties, hygienic products, such as diapers. Elastomeric materials used on the waist, around the holes for the legs, wings or fasteners, for example, in the diaper or clothing type pants. Elastomeric materials in these areas improve the overall fit of the garment and make it more easy as donning and doffing of clothing. Elastomeric materials also act as an elastic barriers, improving sealed the ability of the service along with the fact that even allow for comfort and free movement to the one who wears it.

In hygienic products elastomers can be in the form of yarns, fabrics or films. The elastomeric yarn is a challenging task of assembling the service, because the threads should be used as one component among many in the manufacturing process. These threads may also be weak and tend to break, which can lead to defects in elastic product, even if there is an excessive number of threads. With e stomerij fabrics partly easier to work in the production process, but the fabrics themselves are showing a steady rise both in terms of raw materials, and the cost of production of the fabric. The elastomeric film is usually easier to use for production than the threads, and they are less expensive to produce than the elastomeric fabric. The elastomeric film is also stronger than the threads or fabrics, and they are less likely to break when used.

However, the lack of polymer films is that the polymers used to create films that are really sticky or tacky. This is partly true for elastomeric polymers containing copolymers of styrene, such as block copolymers of styrene-butadiene-styrene. When elastomeric films made from these polymers, ekstragiruyut and wound into a roll, the tape will stick to itself or "cake", thereby making it difficult or impossible unwinding. Roll Packed film cannot be unwound with normal operating speeds without tearing and rending in pieces, in cases of extreme caking film simply cannot be unwound completely. Caking becomes more apparent when the film is aging or stored in a humid environment, such as inside a warehouse for long term storage or during transport.

To resolve the problem of caking elastomeric films etc which was prinipals many attempts. Inside the film, you can enter antiadhesive, which are usually a powdered inorganic materials such as silicon dioxide or talc. However, antiadhesive must be added in large quantities to reduce caking to an acceptable level, and these high levels of antiadhesive are destructive to the elastomeric properties of the film. Other means of reducing the caking is the creation of a rough surface of the film, such as embossing film, which reduces the contact surface-to-surface in the collapsed film and adds tiny air pockets that help to reduce caking. Unfortunately, this leads to the creation of more thin, weak areas in the film, which are then subjected to rupture and destruction, when the stretch film. Another means of reducing blocking is the introduction of a physical barrier, such as a disposable strip in the roll between the layers of the collapsed film. Remove the gasket and then put away when the film roll is unwound for further processing. However, remove the gasket is usually thrown away, creating waste and significant additional costs for the manufacturer. Still another means of reducing the caking elastomeric film is a joint extrusion of a thin outer layers, also called "skins" Il the "top layers", no caking of the polymer on the surface of the elastomeric film. Suitable not caking polymers for such casings are polyolefins, such as polyethylene or polypropylene. It is relatively effective to prevent caking, but when the elastomeric film stretch (or "activate"), layers of skin, which usually are not elastomeric, will stretch and deform as the polymer cladding cannot effectively be reduced. This creates a rough surface texture on the film, which may be undesirable. The provision of such plating layers can also increase the complexity of the manufacturing process and the cost of the elastomeric film.

Extrusion of the elastomeric laminate of the film and the nonwoven material are disclosed in U.S. patent No. 5477172 (Wu'172) with assigned law, which entered into this description by reference. The presence of non-woven material on one or both surfaces of the elastomeric film is effective in preventing caking in rolls and creates an elastomeric laminate with excellent properties of stretch-shortening.

However, in many applications the elastomeric laminate must be attached to the basis of other products. For example, elastomeric asemota strip with an adhesive layer of the diaper must be attached to the annual portion of the diaper with one hand and to a device for fastening (with adhesive tape or clasp hooks) on the other hand. In these junctions asemota strip with an adhesive layer of the diaper does not need elastomeric properties. Similarly, the cuff on the wrist does not need to be elastomeric in that place, where the cuff is attached to the sleeve. Elastomeric polymers are expensive and the introduction of elastomeric materials in areas that do not need to possess elastomeric properties, is wasteful and is an unnecessary expense for the manufacturer.

There remains a need for effective means of producing an elastomeric film that can be rolled up into rolls and stored without caking. This film should not have the worst elastomeric properties, should not create excessive waste and production costs, and should provide an attractive pleasant surface texture after activation. Obviously, the elastomeric film with such properties is superior to many traditional materials.

The invention

In one embodiment, the present invention is directed to a method of forming a multilayer elastomeric laminate. The method includes laminating the elastomeric film of the first substrate to form a fabric laminate having the surface of the elastomeric film, and then the longitudinal cutting of the fabric laminate to form strips of the laminate. On m is Nisha least one strip of the laminate are combined on the surface of the elastomeric film from the second substrate, having a width greater than the width of the laminate, to form a multilayer elastomeric laminate.

In another embodiment, the present invention is directed to a method of forming a multilayer elastomeric laminate. The method includes laminating the elastomeric film of the first substrate to form a fabric laminate having the surface of the elastomeric film, and then cutting the laminated fabric to form strips of the laminate. Many are separated by intervals of strips of the laminate are combined on the surface of the elastomer film with the second substrate having a width greater than the overall width of the strips of laminate to form the set of multilayer elastomeric laminates. These are separated by intervals of multilayer elastomeric laminates can be longitudinally cut into a variety of tissues.

In yet another embodiment, the present invention is directed to a method of forming a multilayer elastomeric laminate. The method includes harvesting strips of cloth laminate containing an elastomeric film that is associated with the first substrate, in which the elastomeric film and the substrate have substantially the same width and in which the strip of laminate has an elastomeric surface. One is olosa laminate or many strips of the laminate are connected on the surface of the elastomeric film from the second substrate, having a width greater than the width of the laminate or the total width of the set of strips of laminate to form a single or multiple layered elastomeric laminates. Many spaced from each other multilayer elastomeric laminates can be longitudinally cut into a variety of tissues.

In yet another embodiment, the present invention is directed to a multilayer elastomeric laminate. This laminate contains a strip of elastomeric film that is connected to one side of the film surface with the first substrate, where the strip of elastomeric film and the first substrate are basically the same width. This strip of elastomeric film is connected to another side of the film surface with the second substrate where the second substrate has a greater width than the strip of elastomeric film.

According to the invention claims a method for forming a multilayer elastomeric laminate for clothes and hygiene products, in which (a) laminated elastomeric film on the first substrate to form a fabric laminate having the surface of the elastomeric film and the elastomeric film contains an elastomeric polymer selected from the group consisting of copolymers of vinyl arylene and conjugated diene monomers, natural rubbers, polyurethane rubbers, polyester rubbers, elastomeric polyol is Finow, elastomeric polyamides, and mixtures thereof, and the first substrate is made of polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof, (b) cut the fabric laminate to form strips of the laminate; and (C) connect the surface of the elastomeric film, at least one strip of the laminate with the second substrate having a width greater than the width of the laminate for forming a multilayer elastomeric laminate, and a second substrate made of a polymeric film, non-woven cloth, paper products, woven fabric, knitted fabric, rough canvas, mesh material, or combinations thereof.

Preferably stage connection represents a connection surfaces of the elastomeric films of many spaced apart strips of laminate with the second substrate having a width greater than the overall width of the strips of the laminate for forming a multiple layered elastomeric laminates.

According to the invention claims a method for forming a multilayer elastomeric laminate for clothes and hygiene products, in which (a) provide a strip of cloth laminate containing an elastomeric film that is connected with the first substrate, while the elastomeric film and the substrate are essentially the same W the real estate market, moreover, the strip of laminate has an elastomeric surface, and the elastomeric film contains an elastomeric polymer selected from the group consisting of copolymers of vinyl arylene and conjugated diene monomers, natural rubbers, polyurethane rubbers, polyester rubbers, elastomeric polyolefins, elastomeric polyamides, and mixtures thereof, and the first substrate is made of polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof; and (b) connect the surface of the elastomeric film strip laminate or the surface of the elastomeric film of the many bands of the laminate with the second substrate having a width greater than the width of the strip of laminate or the total width of the set of strips of laminate for the formation of one or multiple layered elastomeric laminates, respectively, and the second substrate is made of polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof.

Preferably the multilayer elastomeric laminate activate, to make multilayer elastomeric laminate is stretched and cut.

Preferably the multilayer elastomeric laminate activate by gradually took the of ivyselect stretching.

Preferably the elastomeric film is a mixture of an elastomeric polymer and polystyrene high impact.

Preferably the elastomeric film is a multilayer elastomeric film.

Preferably stage of laminating comprises applying the first substrate containing unbound fibers to the elastomeric film.

Preferably the method further includes executing holes in multilayer elastomeric laminate.

Preferably the method further includes winding a multilayer elastomeric laminate into a roll.

Preferably the method further includes folding the festoons multilayer elastomeric laminate into a container for storage.

Preferably the many strips of laminate are separated from each other by nastilochnogo device at the stage of connection.

Preferably, the second substrate is cut longitudinally between adjacent spaced apart strips of laminate for the formation of many bands multilayer elastomeric laminate.

Preferably the second substrate longitudinally cut to form a strip of multilayer elastomeric laminate, and the second substrate extends beyond the elastomeric film and the first substrate on one side of the strip of multilayer elastomeric La is hinata.

Preferably the second substrate longitudinally cut to form strips of the multilayer elastomeric laminate, and the second substrate extends beyond the elastomeric film and the first substrate on both sides of a strip of multilayer elastomeric laminate.

According to the invention claimed multilayer elastomeric laminate for clothes and hygiene products containing a strip of elastomeric film that is connected on one film surface with the first substrate, and a strip of elastomeric film and the first substrate have essentially the same width, the strip of elastomeric film bonded on the other surface of the film with the second substrate, the second substrate has a width greater than the strip of elastomeric film and the elastomeric film contains an elastomeric polymer selected from the group consisting of copolymers of vinyl arylene and conjugated diene monomers, natural rubbers, polyurethane rubbers, polyester rubbers, elastomeric polyolefins, elastomeric polyamides and mixtures thereof, and the first substrate is made of polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof, and the second substrate is made of polymer film, non-woven cloth, paper products,woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof.

Preferably the multilayer elastomeric laminate is stretched and cut.

Preferably the multilayer elastomeric stretch laminate with a certain step.

Preferably the elastomeric film comprises a mixture of an elastomeric polymer and polystyrene high impact.

According to the claimed invention, the product containing the above-mentioned laminate in the form of a component service, belt, cuffs on the leg cuffs on the wrist, cuff ankle thesemachines loops, BTE fastener in a hygienic device, an elastic insert or bandage.

Additional embodiments of the invention will be obvious, considering the following detailed description of the invention.

Brief description of drawings

The invention will be understood more fully, whereas the drawings, in which:

Figure 1 is a schematic representation of one possible implementation of the method according to the invention includes a method of extrusion lamination;

Figure 2 is a schematic diagram of another embodiment of the method according to the invention includes a method of adhesive lamination;

Figure 3 is a schematic representation of a variant implementation of the method according invented the Yu, including the way that the longitudinal cutting and separation of the strips of the laminate;

Figure 4 is a schematic diagram of another embodiment of the method according to the invention includes a method of adhesive lamination for forming a multilayer elastomeric laminate;

Figa and 5b schematically illustrate two examples of multi-layer laminated elastomeric material according to the invention; and

6 is a schematic diagram of another embodiment of the method according to the invention includes a method of activating a multilayer elastomeric laminate.

Detailed description of the invention

The inventors have found that the extrusion or laminating the elastomeric film on a non-elastomeric material, such as spunbond, cordovano or received aerodynamic method from the melt non-woven fabric or paper products such as tissue, can eliminate caking in roll or reduce it to an acceptable level. Means of lamination of the substrate, for example made of nonwoven material, an elastomeric film are known and can easily be made thread-safe, requiring only the addition of a decoiler for delivery of non-woven material to the extrusion line of the film. The inventors have also demonstrated that non-woven material need not be removed from the film during subsequent the treatment and non-woven material does not affect the activation of the elastomeric film. Non-woven material also gives an elastomeric film enjoyable, tissue-like surface, which is most attractive when the film can be used in products in contact with the skin, such as diapers and hygiene items. Depending on the nature of nonwoven material in the laminate strength properties (such as tensile strength) elastomeric laminate can also be improved compared with the properties of only one elastomeric film.

In one embodiment, the present invention is a new method for the production of elastomeric film laminate that is resistant to caking in the roll. The laminate produced in this way has a comparable or superior elastomeric and mechanical properties compared to non-laminated film, it is easy and inexpensive to manufacture, no excessive amounts of waste, and the resulting product can be easily activated, to convert or to enter into additional production stage.

For the purposes of this disclosure the following terms are defined as follows.

"Film" refers to a continuous or substantially continuous sheet material, where the dimensions of the material on the x (length) and y (width) directions are substantially larger than the size of the z (thickness). N the child has a thickness in the z-direction in the range from approximately 1 μm to 1 mm

"Elastomer" or "elastomeric" refers to polymeric materials that can be stretched at least 150% of their original size and then reduced to no more than 120% of their original size in the direction of applying the tensile force. For example, the elastomeric film length of 10 cm will be stretched at least about 15 cm under the action of tensile force and then will be reduced to no more than 12 cm in the elimination of tensile strength.

"Laminate" refers to a layered structure of the plate material, are arranged and connected so that the layers are substantially equal in length along the width of the most narrow place of the laminate. Layers can contain a film, fabric or other materials in the form of a sheet or combinations thereof. For example, the laminate may be a structure containing the film layer and the layer of fabric joined together along their width so that two layers remained United as a single sheet of normal use. The laminate can also be called a composite or coated material. "Laminate" refers to the way in which form such a layered structure.

"Activate" or "activation" refers to the way in which the elastomeric film or laminate making it easy to stretch. Nabolese activation is a physical modification or deformation of the elastomeric film. Stretch film for the first time is one way to activate the film. Elastomeric material, which was subjected to activation, referred to as "activated". The usual example of activation is the inflation of the balloon. First time, when inflating a balloon ("activate"), the material of the balloon, stretched. If the material of the balloon, it is difficult to stretch, the man who blew up a balloon, will be repeatedly manually stretch nonduty balloon in order to facilitate inflation. If the inflated balloon to deflate and then inflate again, "activated" balloon will be much easier to inflate.

"Longitudinal cutting" refers to the method of cutting cloth, such as film, cloth, composite or laminate into strips. Slitting can be performed by any known method, including knives, heated blades, cutting-stapelia saw perpendicular to circular saws, water jets and lasers.

"Apart from each other" refers to multiple (2 or more) strips of materials such as canvas, which are located in such a configuration, in which the strips are essentially parallel to each other, leaving a gap or space between the edges of adjacent strips. This gap or space should be large enough, h is ordinary strip does not touch and do not overlap with each other. For the purposes of this invention, the gap or space between the divided intervals strips can be any suitable distance and in one non-limiting embodiment, is approximately from 1 mm to 3 m width.

The elastomeric film according to the invention contains any extrudable elastomeric polymer. Examples of such elastomeric polymers include copolymers of vinyl arylene and conjugated diene monomers, natural rubbers, polyurethane rubbers, polyester rubbers, elastomeric polyolefins, elastomeric polyamides, and the like, the Elastomeric film may also contain a mixture of two or more elastomeric polymers of the above type. Preferred elastomeric polymers are the copolymers of vinyl arylene and conjugated diene monomers, such as AB, ABA, ABC or ASA block copolymers, in which the segments And contain arylene, such as polystyrene, and the segments contain diene, such as butadiene, isoprene or ethylene-butadiene. These copolymers are available for purchase from the manufacturer of polymers under such brand as KRATON® or Dexco™.

The elastomeric film may contain other components to modify the properties of the film to help with film processing or modifying the appearance of the film. For example, polymers such as a homopolymer of polystyrene, m which should be mixed with the elastomeric polymer in the film, to give the film stiffness and improved strength properties of the film. In one embodiment, the homopolymer polystyrene included in the elastomeric film in amounts of from about 10 to 35 wt.% by weight of the film. Polymers, reducing viscosity, and plasticizers can be added as additives. Other additives, such as pigments, dyes, antioxidants, antistatic agents, anti-caking agents to improve slip, foaming agents, heat and light stabilizers, and inorganic and/or organic fillers, can be added to the elastomeric film in the usual quantities as desired. In addition, the surface of the elastomeric film can optionally be treated before lamination. Such surface treatments can be, for example, dusting the surface of the powder; covering the surface of a liquid, a slurry, coating by extrusion or other coating; surface treatment energy, such as treatment by corona discharge, flame or plasma and/or other known methods of surface treatment.

The elastomeric film used in the methods and laminates of this invention may contain a single layer film containing an elastomeric polymer. Patented elastomeric film may also contain a multilayer film. Ka is every layer of the multilayer elastomeric film may contain elastomeric polymers or layers can include any elastomer, either thermoplastic or elastomere polymers, or alone, or in combination, in each layer. The only restriction is that at least one layer of the multilayer elastomeric film must contain an elastomeric polymer and multilayer elastomeric film must be an elastomeric film. If the elastomeric film is multi-layered and one or more layers contain elastomeric polymer, preferably elastomeric polymer contained elastic polymer.

Any method of forming a film, can be used for the manufacture of elastomeric film. In a specific embodiment, the extrusion method, such as extrusion tint or extrusion aerodynamic method from the melt, is used for the formation of a film. Such methods are well known. The elastomeric film can also exist in the form of a multilayer film. Joint extrusion of multilayer films by casting or blowing is also well known. Other ways of forming the film can also be used if desired.

The elastomeric film laminated on the first substrate to form a fabric laminate. In one non-limiting embodiment, the first substrate is a nonwoven fibrous web. Many of the definitions were proposed for non-woven fiber fabric. Fibers are usually staple fibers or long fibers. As used here, "nonwoven fibrous fabric", "nonwoven fabric", "nonwoven" and "nonwoven" is used generically to mean to define generally flat structure, which is relatively flat, flexible and porous and consists of staple fibers or long fibers. Typically, such non-woven materials create a spunbond method, kordofanian, wet paper manufacturing-laid, air-method of manufacturing a paper-laid, or get aerodynamic method from the melt. Suitable non-woven materials may include, but not be limited to, one-component, two-component or multicomponent fibers of polyethylene, polypropylene, polyesters, rayon, cellulose, nylon and blends of these fibers. Non-woven fabrics, containing elastomeric fiber materials, such as polyurethanes, polyisoprene, block copolymers of polystyrene and mixtures thereof, are also suitable for the present invention. Paper products such as tissue or tissue-like product containing fibers based on cellulose or cellulose fiber formed on the litter, is considered as a non-woven fiber fabric or non-woven materials that fall under the scope of this invention. Nonwoven materials may contain hair is on, which are homogeneous structures or include a two-component structure, such as structure type sheath/core structure, where the components are parallel to each other, structures like Islands in the sea and other well-known two-component configuration. For a detailed description of the non-woven material, see "Nonwoven Fabric Primer and Reference Sampler" by .A.Vaughn, Association of the Nonwoven Fabrics Industry, 3d Edition (1992). Such nonwoven fiber fabric typically have a mass of about 5 grams per square meter (g/m2) to 75 g/m2. For the purposes of the present invention the nonwoven material can be very easy with a basic weight of approximately from 5 to 20 g/m2or any other major mass, which is adequate to prevent caking roll when desired laminate elastomeric film. However, more severe non-woven materials with the main weight of approximately from 20 to 75 g/m2may be desirable in order to achieve certain properties, such as pleasant tissue-like texture in the resulting laminate or the product end use.

Also in the scope of this invention include other types of substrates, such as woven fabric, knitted fabric, coarse canvas, mesh material, etc. These materials, of course, can be used as a protective layer, to the which prevents the elastomeric film from caking in the roll. However, due to cost, availability and ease of production of non-woven materials are generally preferred for laminates in the patented method.

In addition, any process by which fibers are applied to the surface of the elastomeric film, so that the fibers adhere to the elastomeric film and formed of fibrous or tissue-like surface, should be considered as the process by which the formed non-woven material that falls under the scope of the invention. One example of such a process of applying fiber is the application of flock. Another example of such a process of applying fiber is a manufacturer of fiber in place spunbond method or aerodynamic method from the melt and the application of these fibers directly on the film.

The elastomeric film and the first substrate containing, for example, non-woven material laminated by any known method, such as extrusion lamination, adhesive lamination, thermal lamination, ultrasonic lamination, and other methods of lamination, known in this field.

One variant of the method of lamination is extrusion lamination, illustrated in figure 1. The elastomeric film 14 is melted and extruded from extruder 21 through film-forming stencil 22 and dig in space, Breakfast is between STV shown in the drawing, a metal roller 24 and the rubber roller 26. Metal roller can be cooled for rapid cooling of the molten polymer film. Metal roller 24 can also engrave a pattern for stamping, if such a pattern is desired in the resulting film. Non-woven material 12 is unwound from a roll 11 and is injected into the gap between the metal and rubber rollers. The film 14 and the nonwoven material 12 is pressed together platens at a pressure in the zone of contact between corresponding to this, in order to establish a satisfactory connection between the layers. The pressure in the zone of contact between approximately 0 to 100 pounds per linear inch typically corresponds to the formation of a satisfactory connection.

Another variant of the method of laminating adhesive is laminated, illustrated in figure 2. The elastomeric film 14 is melted and extruded from extruder 21 through film-forming stencil 22 and dig into the space between is shown in the drawing, a metal roller 24 and the rubber roller 26. Metal roller can be cooled for rapid cooling of the molten polymer film. Metal roller 24 can also engrave a pattern for stamping, if such a pattern is desired in the resulting film. After the film, cast from a solution, cooled and hardened, it is then sent to the point of binding glue is m (adhesive), such as the spray device 20, where put glue on the tape. Alternative spray device 20 can spray adhesive supplied on a non-woven material 12.

Non-woven material 12 from the roll 11 is injected into the gap 30, which presses the film 14 and the nonwoven material 12 together when the pressure in the zone of contact between corresponding to this, in order to establish a satisfactory connection between the layers. The pressure in the zone of contact between approximately 0 to 100 pounds per linear inch typically corresponds to the formation of a satisfactory connection.

As soon as the cloth laminate formed from the elastomeric film and the first substrate, the fabric laminate 15 is cut into strips. One variant of implementation of the longitudinal cutting is illustrated in Figure 3. Before the longitudinal cutting of the fabric laminate 15 stabilize, for example, running through the tension roller 42. The cloth is then cut along using a suitable device for longitudinal cutting. In one non-limiting embodiment, illustrated in Figure 3, use knives for slitting 44 for cutting the fabric laminate. These knives 44 are placed in such a way that the fabric laminate was receivals into strips of the desired width. Painting laminate can also be cut using other devices for slitting such as heated l is zvia, cutting-stapelia saw perpendicular to circular saws, water jets or lasers.

After making a longitudinal cut strips of the laminate can be divided using the corresponding rasstilanii or separating machine. In one non-limiting embodiment, illustrated in Figure 3, lanes separated by passing through the curved roller 46, which is a known device for Rastelli plate materials.

Curved roller 46 causes the strip of laminate are separated by gaps 19 between each adjacent strips of the laminate 15A. Strip laminate 15A stabilize, for example, running through the tension rollers 42, and sent to the next stage of processing. Other rasstilanie or separating device can also be used to separate the strips of the laminate. One such separation device disclosed in U.S. patent No. 6092761 with assigned law, which entered into this description by reference.

Strip laminate now contain the elastomeric film and the first substrate with the surface of the elastomeric film and the surface of the first substrate on opposite sides of each strip of the laminate. Strip laminate is associated with the second substrate on the surface of the elastomeric film strip laminate for the formation of multilayer elastomeric Lam is Nata. In one non-limiting embodiment, illustrated in Figure 4, enter the second substrate 16. The width of the second substrate 16 is greater than the total width of the strips of the laminate 15, connected with the second substrate. On the second substrate 16 put glue (adhesive) using the spray device 20. The adhesive can be applied across the entire width of the substrate 16, or it can be applied in areas of the bands that correspond to the future application of elastomeric strips. For this variant implementation of the two strips of the laminate 15 is injected and placed on the second substrate. Strip laminate and the second substrate is passed through the gap 30, which presses the strip 15 and the substrate 16 in a multilayer elastomeric laminate 18. The pressure in the zone of contact between support approximately from 0 to 100 pounds per linear inch, in order to implement the connection between the layers.

The person skilled in the art will understand that a separate elastomeric strip 15 or multiple elastomeric strips 15 can be connected with the second substrate 16 in order to create a multi-layered elastomeric laminate. The person skilled in the art will also understand that the elastomeric strip 15 and the second substrate 16 can be connected by other methods, such as thermal connection, ultrasonic connection, and other techniques known in this field.

The EU and many of elastomeric strips 15 associated with the second substrate 16, the resulting multilayer elastomeric laminate 18 can be cut into strips of the multilayer elastomeric laminates 18a. Figure 4 illustrates one non-limiting variant of the implementation stage slitting. The slitting knife 44 raskrivaet multilayer elastomeric laminate 18 to the area of the laminate, which contains only the second substrate 16.

Strips can be cut along the line somewhere in the middle zone of the substrate 16, so that the resulting strip of multilayer elastomeric laminate contained a second substrate 16, beyond the elastomeric strip 15 on each side of the strip 15. As a result, after cutting two strips of the multilayer elastomeric laminate 18a separated by a gap 19. Figa illustrates in cross section one non-limiting variant of the implementation of the resulting strip of multilayer elastomeric laminate. A strip of elastomeric laminate 15 (containing elastomer film 14 and the first substrate 12) was associated with a wider stripe of the second substrate 16 to create the layered elastomeric laminate 18a. The second substrate 16 extends on both sides beyond the strip of laminate 15.

In another embodiment, the multilayer elastomeric laminate 18 can be cut in the area of the laminate, which contains only the second substrate 16 is close to or on the Paradise strip laminate 15. The resulting band multilayer elastomeric laminate contained a second substrate 16, beyond the elastomeric strip 15 from one side of the strip 15, and with few or substantially no substrate 16 facing on the other side of the outside strip of the laminate 15. Fig.5b illustrates in cross section one non-limiting variant of the implementation of the resulting strip of multilayer elastomeric laminate. A strip of elastomeric laminate 15 (containing elastomer film 14 and the first substrate 12) was associated with a wider stripe of the second substrate 16 to create the layered elastomeric laminate 18a. The second substrate 16 extends on one side beyond the strip of laminate 15, with few or substantially no substrate 16 facing on the other side beyond the strip of laminate 15.

In another embodiment of the invention a multilayer elastomeric laminate 18 can be activated by transferring the multilayer elastomeric laminate in a state where it is easily stretched. Multilayer elastomeric laminate of the present invention is particularly suitable for activation by gradually increasing the stretch. As disclosed in commonly attributed to the patent Wu'172, elastomeric laminates manufactured varieties here can be activated by the gradually increasing stretch, using the described rollers for gradually increasing the stretch.

One variant of implementation of the activation process Fig.6 illustrates. Multilayer elastomeric laminate 18 containing one or more strips of elastomeric laminate 15 and the second substrate 16, lead to the activation. Multilayer elastomeric laminate 18 is passed through the gap 30 between the two corrugated vzaimozavisimy rollers 32. Design vzaimozachetnykh rollers fully described in the patent Wu'172. For the purposes of the present invention vzaimozatmeniya rollers can be vzaimozatmeniya grooves 34 in the zones, as shown in Fig.6. In this embodiment, vzaimozatmeniya grooves 34 correspond to the zones of the laminate 18, which contains a strip of elastomeric laminate 15. Therefore, in this embodiment, elastomeric only area of the laminate 18 is sequentially stretched and activated. However, in another embodiment, vzaimozatmeniya grooves 34 can be positioned in areas relevant to other areas of the laminate 18, or vzaimozatmeniya grooves 34 can be positioned across the width vzaimozachetnykh rollers 32. After gradually increasing the stretch laminate 18 becomes activated multilayer elastomeric laminate 18b.

If multilayer elastomeric laminate 18 has many strips of elastomeric La is hinata, as shown in Fig.6, the activated laminate 18b can be longitudinally cut into many strips of the multilayer elastomeric laminate 18C. 6 illustrates one non-limiting variant of the implementation stage slitting. The slitting knife 44 raskrivaet activated multilayer elastomeric laminate 18b along the area of the laminate, which contains only the second substrate 16. As described above and illustrated in Figa, strips of absorbent laminate can be cut, creating a strip of multilayer elastomeric laminate with the second substrate 16 beyond the elastomeric strip 15 on both sides of the strip 15. Alternatively, as illustrated in Fig.5b, strips of absorbent laminate can be cut, creating a strip of multilayer elastomeric laminate with the second substrate 16 extending from one side of the outside of the elastomeric strip 15, and the substantial absence of substrate 16 outside of the elastomeric strip 15 with the other hand.

Multilayer elastomeric laminates, non-activated (18 or 18a) or activated (18b or 18C)can be winded in a roll or folded festoons in the container and stored until further use. Alternative laminates 18, 18a, 18b or 18C can be subjected to additional stages of processing such as execution of holes, printing, adhesive lamination on the ot materials, additional cutting, or other stages of processing.

Multilayer elastomeric laminates 18, 18a, 18b or 18C can be entered in a number of things, where the properties of stretch-shortening are useful. Examples of such things are components of clothing, belts, cuffs on the legs, the cuffs on her wrists, the cuffs at the ankles telemetrie loops, BTE fasteners to hygienic devices, elastic inserts and bandages.

The person skilled in the art will be aware that the production stage, described in the variants of implementation, can be performed sequentially, continuously, or in any reasonable combination thereof. The stage can also be performed in the sequence that differs from those presented in the implementation options described above. Additional options for implementation in the framework of the invention will be apparent to the ordinary experts in this field and concluded in the following claims. The preceding description and/or specific or illustrative embodiments of here presented to illustrate various aspects of the present invention and are not intended to limit the invention in any way.

1. The method of forming a multilayer elastomeric laminate for clothes and hygiene products, which
a) glossy the comfort elastomeric film on the first substrate to form a fabric laminate, having the surface of the elastomeric film and the elastomeric film contains an elastomeric polymer selected from the group consisting of block copolymers of vinyl arylene and conjugated diene monomers, natural rubbers, polyurethane rubbers, polyester rubbers, elastomeric polyolefins, elastomeric polyamides, and mixtures thereof, and the first substrate is made of polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof.
b) cut the fabric laminate for the formation of strips of laminate and
c) connect the surface of the elastomeric film, at least one strip of the laminate with the second substrate having a width greater than the width of the strip of laminate for forming a multilayer elastomeric laminate, and a second substrate made of a polymeric film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof.

2. The method according to claim 1, in which stage connection represents a connection surfaces of the elastomeric films of many spaced apart strips of laminate with the second substrate having a width greater than the overall width of the strips of the laminate for forming a multiple layered elastomeric laminates.

3. Pic is b the formation of the multilayer elastomeric laminate for clothes and hygiene products, in which
a) provide a strip of cloth laminate containing an elastomeric film that is connected with the first substrate, while the elastomeric film and the substrate have essentially the same width, and a strip of the laminate has an elastomeric surface, and the elastomeric film contains an elastomeric polymer selected from the group consisting of block copolymers of vinyl arylene and conjugated diene monomers, natural rubbers, polyurethane rubbers, polyester rubbers, elastomeric polyolefins, elastomeric polyamides, and mixtures thereof, and the first substrate is made of polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, rough canvas, mesh material, or combinations thereof; and
b) connect the surface of the elastomeric film strip laminate or the surface of the elastomeric film of the many bands of the laminate with the second substrate having a width greater than the width of the strip of laminate or the total width of the set of strips of laminate for the formation of one or multiple layered elastomeric laminates, respectively, and the second substrate is made of polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof.

4. The method according to claims 1, 2 or 3, in which mnogosloino the second elastomeric laminate activate for to make multilayer elastomeric laminate is stretched and cut.

5. The method according to claim 4, in which the multilayer elastomeric laminate activate by gradually increasing the stretch.

6. The method according to claims 1 and 3, in which the elastomeric film is a mixture of an elastomeric polymer and polystyrene high impact.

7. The method according to claims 1, 2 or 3, wherein the elastomeric film is a multilayer elastomeric film.

8. The method according to claims 1, 2 or 3, in which stage of laminating comprises applying the first substrate containing unbound fibers to the elastomeric film.

9. The method according to claims 1, 2 or 3, further comprising executing holes in multilayer elastomeric laminate.

10. The method according to claims 1, 2 or 3, further comprising winding the multilayer elastomeric laminate into a roll.

11. The method according to claims 1, 2 or 3, further comprising folding the festoons multilayer elastomeric laminate into a container for storage.

12. The method according to claim 2 or 3, in which many strips of laminate are separated from each other by nastilochnogo device at the stage of connection.

13. The method according to claim 2 or 3, wherein the second substrate is cut longitudinally between adjacent spaced apart strips of laminate for the formation of many bands mnogosloino the th elastomeric laminate.

14. The method according to item 13, wherein the second substrate is longitudinally cut to form a strip of multilayer elastomeric laminate, and the second substrate extends beyond the elastomeric film and the first substrate on one side of the strip of multilayer elastomeric laminate.

15. The method according to claim 2 or 3, wherein the second substrate is longitudinally cut to form strips of the multilayer elastomeric laminate, and the second substrate extends beyond the elastomeric film and the first substrate on both sides of a strip of multilayer elastomeric laminate.

16. Multilayer elastomeric laminate for clothes and hygiene products containing a strip of elastomeric film that is connected on one film surface with the first substrate, and a strip of elastomeric film and the first substrate have essentially the same width, and a strip of elastomeric film bonded on the other surface of the film with the second substrate, the second substrate has a width greater than the strip of elastomeric film and the elastomeric film contains an elastomeric polymer selected from the group consisting of block copolymers of vinyl arylene and conjugated diene monomers, natural rubbers, polyurethane rubbers, polyester rubbers, elastomeric polyolefins, elastomeric polyamides, and mixtures thereof, and the first is I'm a substrate made of a polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof, and the second substrate is made of polymer film, non-woven cloth, paper products, woven fabric, knitted fabric, coarse canvas, mesh material, or combinations thereof.

17. The laminate according to item 16, in which the multilayer elastomeric laminate is stretched and cut.

18. The laminate according to item 16, in which the multilayer elastomeric stretch laminate with a certain step.

19. The laminate according to item 16, in which the elastomeric film comprises a mixture of an elastomeric polymer and polystyrene high impact.

20. The product containing laminate according to item 16 in the form of a component service, belt, cuffs on the leg cuffs on the wrist, cuff ankle thesemachines loops, BTE fastener in a hygienic device, an elastic insert or bandage.



 

Same patents:

FIELD: process engineering.

SUBSTANCE: invention relates to the method of producing elastically elongating laminate 19 and to laminate produced by proposed method to be used in articles, say, disposable pants. Proposed laminate comprises at least three layers (1, 6, 18). Proposed method comprises the following jobs: a) fabrication of first laminate (8) including first linen (1) of inelastic fibrous nonwoven material and elastic film (6); b) activation of the first laminate (8) by stepwise stretching in at least one direction to impart said first laminate (8) ability of elastic elongation; c) stretching activated first laminate (8) for 10-200% in at least one direction; and d) jointing elongated first laminate (8) by lamination to second linen (18) of inelastic nonwoven materials.

EFFECT: elastic elongation, properties of textile, features high extension strength and high puncture resistance.

20 cl, 4 dwg, 1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to the method of producing elastically elongating laminate 19 and to laminate produced by proposed method to be used in articles, say, disposable pants. Proposed laminate comprises at least three layers (1, 6, 18). Proposed method comprises the following jobs: a) fabrication of first laminate (8) including first linen (1) of inelastic fibrous nonwoven material and elastic film (6); b) activation of the first laminate (8) by stepwise stretching in at least one direction to impart said first laminate (8) ability of elastic elongation; c) stretching activated first laminate (8) for 10-200% in at least one direction; and d) jointing elongated first laminate (8) by lamination to second linen (18) of inelastic nonwoven materials.

EFFECT: elastic elongation, properties of textile, features high extension strength and high puncture resistance.

20 cl, 4 dwg, 1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to multilayer substrate 60 and method to produce a counterfeit-protected paper. Proposed substrate consists of the first paper interlayer (10, 202) with density varying from 10 to 80 g/m2 and second paper interlayer (20, 214) with density varying from 10 to 80 g/m2, and one layer of plastic made from thermosetting polymer materials arranged between aforesaid interlayers (10, 20, 202, 214) and bound therewith. Proposed method consists in that plastic layer, as-melted, is introduced between said paper interlayers (10, 20, 202, 214) for them to be squeezed between two rolls (50) in continuous process. Said two rolls 50 are kept at temperature exceeding room temperature but lower than that plastic material melt. Paper interlayers and plastic layer are bound together due to atomic-molecular forces between said layers to produce penetration zone wherein plastic layers are bound with fibrous material of aforesaid interlayers (10, 20, 202, 214). Plastic layer density varies from 22 to 80 g/m2.

EFFECT: better counterfeit protection, longer life.

38 cl, 5 ex, 3 tbl, 4 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to device intended for producing three-layer with cellular filler and can be used in machine building, aerospace and aircraft engineering. Device comprises furnace - autoclave to control heat conditions and balance distributed heat flows, service panel to accommodate assembly of produced three-layer panel with cellular filler, appliances to clamp panel relative to service plate and appliances to remove volatile fractions of glue. Three-layer panel consists of outer linings, cellular filler and film glue laud between cellular filler and linings. Appliances to clamp panel relative to service plate comprise cover with drain holes furnished with detachable piston-type pneumatic cylinders with their high-pressure chambers communicated via pipeline with feed union. Service plate has appliances to fasten rotary device on circular table to rotate said assembly consisting of service plate with three-layer panel secured thereon with the help of said cover in vertical position relative to the axis perpendicular to gravity force. Service plate and cover are made from material that features thermal expansion factor approximating to that of panel with cellular filler.

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3 cl, 4 dwg

FIELD: textiles, paper.

SUBSTANCE: present invention is related to laminated items, comprising board of non-wood cellulose with at least one attached mat of nonwoven material, and also to methods for manufacturing of such laminated items. Laminated item, comprising board of non-wood cellulose, having the first side, the second side and edges. Besides board comprises particles of non-wood cellulose, which are attached together with binder due to action of heat and pressure; and mat of nonwoven material, which is attached to the first side of board made of non-wood cellulose.

EFFECT: improved properties of nonwoven material.

34 cl, 2 dwg, 1 ex, 1 tbl

FIELD: production processes.

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EFFECT: simplification of manufacturing of sheet product and reinforcement of linkage in it between base and covering material containing plastics layer.

17 cl, 5 dwg

FIELD: production processes.

SUBSTANCE: covering material (1) is obtained by means of extrusion of plastics layer (5) which is connected to layer of absorbing bearer (2). Then bearer (2) is impregnated by reactive resin (6) by means of its distribution on surface or by means of submergence in tar. Resin (6) is absorbed through layer of bearer (2) and contact with plastics layer. Then reactive resin (6) is dried with preservation of groups in it reactive to cross link. These groups undergo reaction of linkage when covering material is connected to rigid sheet based on fibers upon heating and under pressure. End product is obtained in which resin acts as binder between covering material and sheet.

EFFECT: simplification of manufacturing of sheet product and reinforcement of linkage in it between base and covering material containing plastics layer.

17 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: invention is related to insert for multilayer component with cellular filler. Insert (10) for multilayer component with cellular filler comprises internal hollow cylindrical bush (12), external bush (16), which is arranged coaxially to internal bush (12) and is distant from it in radial direction, at the same time internal side of external bush is connected to external side of internal bush (12) by means of multiple radial partitions (18). Insert (10) also comprises multiple longitudinal chambers (20), which are distributed along insert circumference between internal bush (12) and external bush (16), at the same time each chamber (20) in circumferential direction of insert is limited with two partitions (18), which follow each other in circumferential direction, and is opened at least at one of its ends, multiple anchor elements (22), every of which enters according chamber (20), at the same time each anchor element (22) has sharpened end (24) and blunt end (26), besides specified blunt end is located near open end of chamber (20), multiple outlet holes (28) at side surface of external bush (16), through which part of each anchor element (22) may come out, with sharpened end (24) forward from according chamber (20). Insert (10) also comprises pusher (32), which is entered in axial direction into chambers (20) through their open ends and arranged so that whenever pusher enters chambers (20), it is engaged with blunt ends (26) of anchor elements (22) and moves specified anchor elements, and guide devices in each chamber (20), which comprises anchor element (22), which in process of anchor elements motion (22), caused by insertion of pusher (32) into chambers (20), provide for exit of anchor elements with their sharpened ends (24) forward through outlet holes (28) radially outside from chambers (20).

EFFECT: increased strength of joint.

14 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: particular invention relates to machinery for wrapping of profiles. Technical result is implemented on declared machinery for wrapping of profiles with usage if active guide ways for profiles and device for glue feeding. Machinery contains at least one device for glue feeding, and also at least one central axis. At least one couple of active guide ways for profiles is installed with ability of rotation around the same axis. Additionally each pair of guide ways is installed with ability of positioning under different angles.

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3 cl, 17 dwg

FIELD: instrument making.

SUBSTANCE: invention relates to equipment producing plate-like elements from combined material, for example photovoltaic cells. Proposed machine comprises heating plate, device to transfer cells and movable top part accommodating membrane. Distributing foil sections are arranged between aforesaid membrane and heating plate to move therein. Each aforesaid sections is held by its one edge oriented across transfer direction with the help of clamps. Foil sections are not jointed together. Aforesaid clamps can move along feed direction driven by appropriate drive appliances. Membrane is coupled with tensioning devices arranged in upper part that comprise at least, one device that generates tensioning force.

EFFECT: higher quality and lower costs.

9 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to the method of producing elastically elongating laminate 19 and to laminate produced by proposed method to be used in articles, say, disposable pants. Proposed laminate comprises at least three layers (1, 6, 18). Proposed method comprises the following jobs: a) fabrication of first laminate (8) including first linen (1) of inelastic fibrous nonwoven material and elastic film (6); b) activation of the first laminate (8) by stepwise stretching in at least one direction to impart said first laminate (8) ability of elastic elongation; c) stretching activated first laminate (8) for 10-200% in at least one direction; and d) jointing elongated first laminate (8) by lamination to second linen (18) of inelastic nonwoven materials.

EFFECT: elastic elongation, properties of textile, features high extension strength and high puncture resistance.

20 cl, 4 dwg, 1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to the method of producing elastically elongating laminate 19 and to laminate produced by proposed method to be used in articles, say, disposable pants. Proposed laminate comprises at least three layers (1, 6, 18). Proposed method comprises the following jobs: a) fabrication of first laminate (8) including first linen (1) of inelastic fibrous nonwoven material and elastic film (6); b) activation of the first laminate (8) by stepwise stretching in at least one direction to impart said first laminate (8) ability of elastic elongation; c) stretching activated first laminate (8) for 10-200% in at least one direction; and d) jointing elongated first laminate (8) by lamination to second linen (18) of inelastic nonwoven materials.

EFFECT: elastic elongation, properties of textile, features high extension strength and high puncture resistance.

20 cl, 4 dwg, 1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to multilayer substrate 60 and method to produce a counterfeit-protected paper. Proposed substrate consists of the first paper interlayer (10, 202) with density varying from 10 to 80 g/m2 and second paper interlayer (20, 214) with density varying from 10 to 80 g/m2, and one layer of plastic made from thermosetting polymer materials arranged between aforesaid interlayers (10, 20, 202, 214) and bound therewith. Proposed method consists in that plastic layer, as-melted, is introduced between said paper interlayers (10, 20, 202, 214) for them to be squeezed between two rolls (50) in continuous process. Said two rolls 50 are kept at temperature exceeding room temperature but lower than that plastic material melt. Paper interlayers and plastic layer are bound together due to atomic-molecular forces between said layers to produce penetration zone wherein plastic layers are bound with fibrous material of aforesaid interlayers (10, 20, 202, 214). Plastic layer density varies from 22 to 80 g/m2.

EFFECT: better counterfeit protection, longer life.

38 cl, 5 ex, 3 tbl, 4 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to device intended for producing three-layer with cellular filler and can be used in machine building, aerospace and aircraft engineering. Device comprises furnace - autoclave to control heat conditions and balance distributed heat flows, service panel to accommodate assembly of produced three-layer panel with cellular filler, appliances to clamp panel relative to service plate and appliances to remove volatile fractions of glue. Three-layer panel consists of outer linings, cellular filler and film glue laud between cellular filler and linings. Appliances to clamp panel relative to service plate comprise cover with drain holes furnished with detachable piston-type pneumatic cylinders with their high-pressure chambers communicated via pipeline with feed union. Service plate has appliances to fasten rotary device on circular table to rotate said assembly consisting of service plate with three-layer panel secured thereon with the help of said cover in vertical position relative to the axis perpendicular to gravity force. Service plate and cover are made from material that features thermal expansion factor approximating to that of panel with cellular filler.

EFFECT: better distribution of glue.

3 cl, 4 dwg

FIELD: textiles, paper.

SUBSTANCE: present invention is related to laminated items, comprising board of non-wood cellulose with at least one attached mat of nonwoven material, and also to methods for manufacturing of such laminated items. Laminated item, comprising board of non-wood cellulose, having the first side, the second side and edges. Besides board comprises particles of non-wood cellulose, which are attached together with binder due to action of heat and pressure; and mat of nonwoven material, which is attached to the first side of board made of non-wood cellulose.

EFFECT: improved properties of nonwoven material.

34 cl, 2 dwg, 1 ex, 1 tbl

FIELD: production processes.

SUBSTANCE: covering material (1) is obtained by means of extrusion of plastics layer (5) which is connected to layer of absorbing bearer (2). Then bearer (2) is impregnated by reactive resin (6) by means of its distribution on surface or by means of submergence in tar. Resin (6) is absorbed through layer of bearer (2) and contact with plastics layer. Then reactive resin (6) is dried with preservation of groups in it reactive to cross link. These groups undergo reaction of linkage when covering material is connected to rigid sheet based on fibers upon heating and under pressure. End product is obtained in which resin acts as binder between covering material and sheet.

EFFECT: simplification of manufacturing of sheet product and reinforcement of linkage in it between base and covering material containing plastics layer.

17 cl, 5 dwg

FIELD: production processes.

SUBSTANCE: covering material (1) is obtained by means of extrusion of plastics layer (5) which is connected to layer of absorbing bearer (2). Then bearer (2) is impregnated by reactive resin (6) by means of its distribution on surface or by means of submergence in tar. Resin (6) is absorbed through layer of bearer (2) and contact with plastics layer. Then reactive resin (6) is dried with preservation of groups in it reactive to cross link. These groups undergo reaction of linkage when covering material is connected to rigid sheet based on fibers upon heating and under pressure. End product is obtained in which resin acts as binder between covering material and sheet.

EFFECT: simplification of manufacturing of sheet product and reinforcement of linkage in it between base and covering material containing plastics layer.

17 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: invention is related to insert for multilayer component with cellular filler. Insert (10) for multilayer component with cellular filler comprises internal hollow cylindrical bush (12), external bush (16), which is arranged coaxially to internal bush (12) and is distant from it in radial direction, at the same time internal side of external bush is connected to external side of internal bush (12) by means of multiple radial partitions (18). Insert (10) also comprises multiple longitudinal chambers (20), which are distributed along insert circumference between internal bush (12) and external bush (16), at the same time each chamber (20) in circumferential direction of insert is limited with two partitions (18), which follow each other in circumferential direction, and is opened at least at one of its ends, multiple anchor elements (22), every of which enters according chamber (20), at the same time each anchor element (22) has sharpened end (24) and blunt end (26), besides specified blunt end is located near open end of chamber (20), multiple outlet holes (28) at side surface of external bush (16), through which part of each anchor element (22) may come out, with sharpened end (24) forward from according chamber (20). Insert (10) also comprises pusher (32), which is entered in axial direction into chambers (20) through their open ends and arranged so that whenever pusher enters chambers (20), it is engaged with blunt ends (26) of anchor elements (22) and moves specified anchor elements, and guide devices in each chamber (20), which comprises anchor element (22), which in process of anchor elements motion (22), caused by insertion of pusher (32) into chambers (20), provide for exit of anchor elements with their sharpened ends (24) forward through outlet holes (28) radially outside from chambers (20).

EFFECT: increased strength of joint.

14 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: particular invention relates to machinery for wrapping of profiles. Technical result is implemented on declared machinery for wrapping of profiles with usage if active guide ways for profiles and device for glue feeding. Machinery contains at least one device for glue feeding, and also at least one central axis. At least one couple of active guide ways for profiles is installed with ability of rotation around the same axis. Additionally each pair of guide ways is installed with ability of positioning under different angles.

EFFECT: productivity improvement of particular wrapping machine and significant reduction of alignment time, and also increasing of efficiency, as from aggregate cost of machine price point of view, as from required space for its operation and storing point of view.

3 cl, 17 dwg

FIELD: instrument making.

SUBSTANCE: invention relates to equipment producing plate-like elements from combined material, for example photovoltaic cells. Proposed machine comprises heating plate, device to transfer cells and movable top part accommodating membrane. Distributing foil sections are arranged between aforesaid membrane and heating plate to move therein. Each aforesaid sections is held by its one edge oriented across transfer direction with the help of clamps. Foil sections are not jointed together. Aforesaid clamps can move along feed direction driven by appropriate drive appliances. Membrane is coupled with tensioning devices arranged in upper part that comprise at least, one device that generates tensioning force.

EFFECT: higher quality and lower costs.

9 cl, 6 dwg

FIELD: aviation.

SUBSTANCE: invention is related to aircraft body. Aircraft body comprises bearing structure that includes stringers as structural elements, and external shell fixed to bearing structure. Body of aircraft also comprises light reinforcing structure from strip-like elements made of material with high resistance to destruction and applied with the help of glue onto mentioned external shell, so that specified reinforcing strip-like elements reinforce external shell. Strip-like elements consist of laminated flaky material or from monolithic aluminium alloy and lithium.

EFFECT: resistance to destruction is increased, including resistance to fatigue cracks.

28 cl, 5 dwg

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