The method of obtaining tarmoqlararo lining material

 

(57) Abstract:

The invention concerns a method of obtaining tarmoqlararo lining material (1) containing textile base (2), the first hot-melt layer (5), which is applied on one of its sides (3), called the face, and melt the second layer (7), with a melting point above the melting temperature of the layer (5) applied on the back side (4) textile base (2), the first layer (5) is applied on the front side (3) textile base (2) using the first device (9) screen printing; the second layer (7) applied to the transfer roller (11) with the second device (10) screen printing; thus obtained point (8) is transferred onto the back side (4) textile base (2), and the first layer (5) and the transfer of the second layer (7) being carried out simultaneously, so that the point (6, 8) of both layers (5, 7) cross-section lying opposite each other. Also described thermocline lining material obtained by this method. Get the lining material can withstand storage at ambient temperature, the layers of the material stored in coils, not glued to each other, there is no seepage of hot-melt polymer clay is, 1 Il.

The invention relates to a method of polucheniya tarmoqlararo lining material, as well as to termoklima lining material obtained by this method.

You know getting termocline lining materials made of textile base), which is caused by the deposition of a layer of hot-melt polymers, distributed in the form of points.

Such lining materials are specifically designed to bond with other textile material, such as cloth, to obtain a composite material with controlled physical properties, such as strength, elasticity, softness, neck volume, quality to the touch and so on

These properties of the composite material are determined by the nature of the fabric, the nature of the textile base, lining material, and the nature of the composition and method of applying a hot-melt layer.

After receiving thermocline lining material must withstand storage at ambient temperature. In addition, it is necessary that the layers of material, usually stored in coils, not glued each other. Thermocline lining material should not have stickiness or adhesion is Arial connect with cloth to obtain the necessary composite material.

This compound is usually carried out by pressing at temperatures from 100 to 160oC and pressures from several decibar to several bar within a relatively short period of time, of the order of 10-30 sec.

During this stage of the hot-melt polymers lining material is at least partially restore their adhesive properties.

During this operation it is also necessary to avoid leakage of these hot-melt polymers through the fabric or reverse leakage, i.e., percolation through the textile base lining material.

Indeed, seepage and return seepage produce unaesthetic effect and make the lining material unusable, or at least give a composite material undesirable properties, the opposite required.

The main consequence of this leakage and reverse leakage is bonding with each other fibers textile fundamentals, and the softness of the composite material is mediocre. Indeed, mediocre softness due partly to the flexibility of the composite material and thus the deposits observed since the beginning of the use termocline lining materials, and since then there have been many attempts to address these shortcomings.

Thus, the application France A2177038 offered to get the lining material by sequential deposition on a textile basis of the two adhesive layers. The first layer is obtained by deposition on a textile basis viscous dispersion (paste) containing polymers with high viscosity and/or high melting point, directly on the textile substrate using the device for screen printing.

The second layer is produced by applying a powder of the hot-melt polymers with lower viscosity and/or melting point than the polymer of the first layer.

The surface points of the paste of the first layer retains adhesive properties due to the nature and composition of the contained compounds. Therefore, the hot-melt material, sprayed in the form of fine powder on a textile base coated with the first layer, due to the gravitational forces are distributed on the entire surface of the textile base, but more firmly associated with the points of pasta.

As used for applying a sublayer substances have a higher melting temperature than the hot-melt substance layer, they form a protection is United by with cloth.

However, since the particle sublayer have a spherical or ellipsoidal shape, the particles of the hot-melt substances adhered to the entire surface of the particles of the paste, especially at the point of contact of the paste particles and textile foundations; this leads to the fact that the hot-melt substance in the point of contact, flows through the textile base and the underlayer may not serve as a protective coating in the connection process, which leads to leakage of the hot-melt substances through the fabric.

Moreover, with the direct underlayer coating on the fabric due to the irregular shape of the particles sublayer to a greater or lesser extent penetrates into the textile base. This leads to heterogeneity in the adhesion surface of the substrate and, consequently, the number of particles it is also changing, which has a negative effect on the strength of adhesion between the lining material and cloth, in particular creates heterogeneity of these forces of adhesion.

In addition, in the method proposed in the application France, use coloring roller, similar to those used in heliographic purposes. However, the powder is distributed in the cavity of the cushion is not very evenly. As a consequence, the resulting inhomogeneous layers.

In addition, in this method, the chemical composition of the underlayer and the top layer must be compatible.

Another known method described in the application France A2576191, which describes the lining material containing the first hot-melt layer deposited on the front surface of the base, and a second layer higher than the first melting point is deposited on the back side of the base.

The objective of this invention is to provide such a method of obtaining tarmoqlararo lining material, and such tarmoqlararo lining material, obtained in this way, which would eliminate the limitations and disadvantages of known methods and materials.

In particular, the object of the invention is the creation of tarmoqlararo lining material, in which there is no leakage of the hot-melt substance through a textile basis when connecting the material with the cloth.

To solve the problem in the invention, a method for obtaining tarmoqlararo lining material containing textile base, the first hot-melt layer, which is applied on one of its sides, called face, and a second layer, having Ovi, characterized in that:

- distributed in the form of dots of the first layer is applied on the front side of the textile substrate with the first device screen printing;

- distributed in the form of points, the second layer is applied to the transfer roller having the correct and smooth the surface using the second device screen printing;

is thus obtained point with a flat surface and a small thickness is transferred onto the reverse side of the textile basis, with the first layer and the transfer of the second layer takes place simultaneously, so that points of both layers in the cross section lying opposite each other.

Covered in this way, the textile is exposed to electromagnetic radiation and/or bombarded by electrons and/or thermal treatment.

As another object of the invention is proposed thermocline lining material, characterized in that it is obtained using the proposed invention method.

Other distinctive features and advantages of the invention will be apparent from the further description and the accompanying drawing which represents a schematic view of the device illustrating the proposed method pcny material 1, containing textile base 2, is covered with each of the parties 3,4 layer 5,7 hot-melt polymer.

Textile base 2 may be a known material. It is the same as the materials commonly used for lining materials.

It can be a woven, knitted or non-woven fabric. Most often, these types of textiles treated with the subsequent finishing operations prior to use as the basis for applying the coating.

Textile base 2 contains the first hot-melt layer 5 deposited on the front side 3 of the textile bases 2 and the second layer 7 deposited on the back side 4 of the textile basics 2. The first layer 5 is melt and the melting temperature of the second layer 7 above the melting temperature of the first layer 5. The term "hot-melt" refers to a layer that provides thermal compound, solid and non-adhesive properties at room temperature, but with high temperature ductility and therefore partially pasty fluid, but sticky. Thus, thermoacoustic the first layer 5 is higher than thermoacoustic the second layer 7.

Thermocline lining is 5, that is, it eliminates the possibility of the above-described phenomenon of reverse leakage.

The method of obtaining tarmoqlararo lining material 1 is that the layers 5,7 hot-melt polymers simultaneously applied to each side of 3,4 textile basics 2. The first hot-melt layer 5 is applied directly on the front side 3 of the textile basis 2, and the second layer 7 is applied by moving in the opposite direction 4 textile basics 2.

With this purpose, put the first layer 5, distributed in the form of point 6 on the front side 3 of the textile basics 2, using the first device 9 screen printing.

The second layer 7, distributed in the form of 8 points on the transfer roller 11 having the correct and smooth surface, is applied using a second device 10 screen printing; received in such a way point 8 with a flat surface and a small thickness is then transferred to the back side 4 of the textile basics 2, while the first layer 5 and the transfer of the second layer 7 takes place simultaneously, so that points to 6.8 layers of 5.7 cross section lying opposite each other.

Deposition of the first hot-melt layer 5 and second layer 7 is carried out using devices 9 and 10 DL the ne side, with rubber pull rollers 9a, 10a, respectively, and protivotokom on the other hand, which may be a transfer roller 11.

In other words, the transfer roller 11 serves as protivorecija for the first device 9 for screen printing, and the latter serves as protivotokom to the transfer roller 11.

In the first device 9 screen printing, the second device 10 screen printing and transfer roller 11 are arranged one after the other (for example, one above the other), with their axes of rotation lie in the same plane and perpendicular to the direction of movement of the textile basics 2.

The use of devices 9,10 for screen printing allows you to apply a wet coating methods, in which very fine powders of polymers in the form of a water dispersion is applied on a textile base 2 and the transfer roller 11 with a hollow rubber wringer rollers 9a, 10a, respectively, are installed inside the rotating rollers with a thin perforated wall. Rubber squeeze rollers 9a, 10a ensuring the passage of the paste, forming layers 5 and 7, the through hole devices 9,10 screen printing, respectively.

In makovy diameter and contain mutually corresponding set of holes.

In the first hot-melt layer 5 deposited on the front side 3 of the textile basics 2, contains at least one polymer or at least one thermoplastic copolymer, such as polyethylene, ethylene copolymer, polyamide, complex polyester, copolymer complex of the polyester in the form of a dispersion or solution of these substances. It may also contain a mixture of these substances.

The composition of the second layer 7 deposited on the back side 4 of the textile basics 2 varies depending on the application. For example, it may include antiadhesive additive, possibly representing a silicone.

The second layer 7 contains slivaushiesia or messepalast polymers, the melting temperature which exceeds the melting point of the hot melt layer 5.

In some cases the use of pulverized substance with a higher melting point than the melting point of a substance used in the first layer 5, for example polyethylene. In other cases the use of thermosetting substances which also have a higher melting temperature than the substance of the first layer 5. Thus, particularly suitable mixture of aminos, acrylic resin, aminos and polyurethanes, EDS obtain a pasty mixture is added thickeners.

Then this paste is applied on the transfer roller 11 by means of the second device 10 screen printing and means 11' and then proceed to process the order the partial or full removal of the solvent, and/or interaction of polymers with pasta, and/or melting of the particles of the pulverized polymer.

The next step is transferring the set of points 8 of the second layer 7 on the back side 4 of the textile basics 2. To enable the transfer of the textile base 2 is pressed between the transfer roller 11 and the first device 9 screen printing.

To this end, the first device 9 screen printing and transfer roller 11 in contact with each other at the point 13, with textile base 2 is held between the first device 9 screen printing and the transfer roller 11 in contact with each of them at the point 13. In addition, the holes in the first device 9 screen printing correspond to the points 8 of the second layer 7 at least at the point 13 of the contact or contact between the textile basics 2 with the first device 9 screen printing and transfer roller 11.

Since the energy of adhesion of the second layer 7 to a textile backing 2 exceeds energetycznego roller 11 and textile basics 2.

Transferred in this way, point 8 of the second layer 7 have a flat surface and a small thickness and are located on the surface of the textile basics 2.

Therefore, the application of the second layer 7 to the transfer roller 11 by means of the second device 10 screen printing fulfill before applying the first layer 5 directly on the front side 3 of the textile basics 2 using the first device 9 screen printing.

With this purpose, the circumferential velocity of the first device 9 screen printing, the second device 10 screen printing and transfer roller 11 is set so that the point 6.8 layers of 5.7 cross-section are located opposite each other.

Then the textile base 2 with a coating of points to 6.8 located opposite each other, are passed through a heating and/or emissivity of the chamber 12, in particular, if necessary, to remove solvent, with the implementation of such a transformation of the second layer 7, where its melting temperature above the melting temperature of the first layer 5 and in which the melting of the polymers constituting the first layer 5.

The invention also relates to tarmoqlararo lining material, obtained using OPI is external base (2), the first hot-melt layer (5), which is applied on one of its sides (3), called the face, and a second layer (7) having a melting point higher than a melting temperature of the first layer (5) and deposited on the back side (4) textile fundamentals, characterized in that on the front side (3) textile base (2) is applied distributed in the form of points (6) the first layer (5) by the first device (9) screen printing; distributed in the form of points (8) the second layer (7) applied to the transfer roller (11), having a proper and smooth surface, by a second device (10) screen printing, thus obtained point (8) with a flat surface and a small thickness is transferred onto the back side (4) textile base (2), and the first layer (5) and the transfer of the second layer (7) being carried out simultaneously with the first device (9), screen printing and transfer roller (11) in contact with each other at the point (13), and the textile substrate (2) passes between the first device (9), screen printing and transfer roller (11) is also in contact with each of them at the point (13); the holes in the first device (9), screen printing correspond to points (8) of the second layer (7) at least at the point sapric is the first device (9), screen printing, the second device (10) screen printing and transfer roller (11) are arranged one behind the other, with their axes of rotation lie in the same plane, and the circumferential speed devices (9, 10) and roller (11) is set such that the point (6, 8) of both layers (5, 7) cross-section lying opposite each other; covered in this way, the textile is exposed to electromagnetic radiation and/or bombarded by electrons, and/or thermal treatment.

2. The method according to p. 1, characterized in that the first layer (5) contains at least one thermoplastic polymer or at least one thermoplastic copolymer.

3. The method according to p. 2, characterized in that thermoplastic polymer or thermoplastic copolymer selected from the group including polyethylene, copolymers of ethylene, polyamides, polyesters, copolymers of polyesters, dispersions or solutions of these substances, and mixtures thereof.

4. The method according to any of paragraphs.1 to 3, characterized in that the second layer (7) contains a thermosetting or thermoplastic polymers, the melting temperature which exceeds the melting point of the hot melt layer (5).

5. The method according to any of paragraphs.1 to 4, characterized in that the first device (9) and the WTO the holes.

6. Thermocline lining material, characterized in that it is obtained using the method according to any of paragraphs.1 - 5.

 

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