JP2017200729A - Composite fabric and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite fabric of a non-residual organic solvent which can solve a problem in an organic solvent residue.SOLUTION: A method for producing a composite fabric includes: a step of providing a thin film layer and a fabric layer having a melting point higher than a melting point of the thin film layer; a step of abutting the fabric layer on the thin film layer to form a laminate member; a step of heating the laminate member at a preheating temperature which is equal to or higher than the melting point of the thin film layer and is lower than a melting point of the fabric layer, heating the laminate member at a hot-press temperature which is equal to or higher than the melting point of the thin film layer, is lower than the melting point of the fabric layer and is higher than the preheating temperature and a hot-press pressure of 0.1 kg/cmto 100 kg/cm, and pressing the laminate member to obtain a press member; and a step of cooling the press member to obtain a composite fabric.SELECTED DRAWING: Figure 3

Description

The present invention relates to a surface treatment method for producing a fabric, and more particularly to a method of combining a fabric layer and a thin film layer and a product comprising the method.

With the advancement of technology in the spinning industry, for example, (1) coating processing technology or (2) thin film processing technology, such as polymer in the surface treatment of the fabric to improve the strength, water resistance and other effects of the fabric The technology using can now be applied.

As shown in FIG. 6 and FIG. 7, in the coating processing technique, a polymer coating solution 70 in which a polymer is dissolved in an organic solvent filled in a tank 80 is transported by a transport wheel 90 via a coating wheel 91. Apply to the dough 51 to be made. When the organic solvent of the polymer coating solution 70 is volatilized, the coated fabric 50 is formed by the fabric 51 and a polymer layer 71 that covers the surface of the fabric 51 and is aged by the polymer coating solution 70 (see FIG. 7).

As shown in FIGS. 8 and 9, the thin film processing technique is such that a heat-bonding bond solution 62 obtained by dissolving a polymer in an organic solvent is applied so as to be scattered on the surface of the fabric 61, and then the thin film 63 is formed. By heating and pressurizing the surface of the fabric 61 to which the heat-bonding bond solution 62 has been applied, the fabric 61, a heat-bonding layer 64 comprising the heat-bonding solution 62 applied to the fabric 61, A laminated fabric 60 (see FIG. 9) made of the thin film 63 is produced.

However, the above conventional techniques have the following problems.

In the coated fabric 50, the polymer layer 71 covers only the surface of the fabric 51 (see FIG. 7), and as a result, the strength of the coated fabric 50 cannot be improved effectively. It was. In addition, since an organic solvent is used in the process, a step for volatilizing or aging the organic solvent must be incorporated into the process, resulting in a long process time. Note that a part of the organic solvent remaining in the coated dough 50 becomes a cause of adverse effects on the health and environment of the user.

In the thin film processing technique, in the step of manufacturing the laminated fabric 60, the organic solvent for dissolving the heat-bonding bond solution 62 may remain in the laminated fabric 60, and the health and environment of the user. It will contribute to the negative effects on The bond between the fabric 61 and the thin film 63 is due to the acting force between the heat-bonded bond layer 64 and the fabric 61 and the thin film 63, but when the life of the heat-bonded bond layer 64 is exhausted. There is a problem that the fabric 61 and the thin film 63 of the laminated fabric 60 are peeled off.

Therefore, the present invention has been filed and an object of the present invention is to provide a surface treatment method for producing a dough that can improve the strength of the processed dough without using an organic solvent.

The invention of claim 1 of the present application comprises a thin film layer made of a material having a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic, and a thermoplastic elastomer. Providing a fabric layer comprising a material having a material selected from the group consisting of a thermoplastic and a combination of the thermoplastic elastomer and the thermoplastic, and having a melting point higher than the melting point of the thin film layer; ,
The step of forming the laminated member by bringing the fabric layer into contact with the thin film layer is equal to or higher than the melting point of the thin film layer, and the laminated member is heated at a preheating temperature lower than the melting point of the fabric layer. The laminated member at a hot pressing temperature higher than or equal to the melting point of the thin film layer, lower than the melting point of the fabric layer and higher than the preheating temperature, and a hot pressing pressure of 0.1 kg / cm ² to 100 kg / cm ^2. Heating and pressing the laminated member to obtain a pressed member;
And a step of obtaining a composite fabric by cooling the pressing member.

In the invention of claim 2 of the present application, in the step of providing the thin film layer and the fabric layer, the fabric layer has a first fabric layer and a second fabric layer, and the material of the first fabric layer is: A material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic, and the material of the second fabric layer is a thermoplastic elastomer and a thermoplastic And a combination selected from the group consisting of the thermoplastic elastomer and the thermoplastic plastic, both the melting point of the first fabric layer and the melting point of the second fabric layer are higher than the melting point of the thin film layer. Both the melting point of the first fabric layer and the melting point of the second fabric layer are higher than the preheating temperature and the hot press temperature,
In the step of forming the laminated member by bringing the cloth layer into contact with the thin film layer, the first cloth layer is brought into contact with the surface of the thin film layer, and the second cloth layer is brought into contact with the thin film layer. The method for producing a composite fabric according to claim 1, wherein the laminated member is obtained by contacting with a surface opposite to a surface with which the first fabric layer is contacted.

In the invention of claim 3 of the present application, in the step of providing the thin film layer and the cloth layer, the thin film layer has a first thin film layer and a second thin film layer, and the material of the first thin film layer is: A material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic, the material of the second thin film layer being a thermoplastic elastomer and a thermoplastic And a combination selected from the group consisting of the thermoplastic elastomer and the thermoplastic, both of the melting point of the first thin film layer and the melting point of the second thin film layer are from the melting point of the fabric layer. Low, both the melting point of the first thin film layer and the melting point of the second thin film layer are lower than the preheating temperature and the hot press temperature,
In the step of forming a laminated member by bringing the cloth layer into contact with the thin film layer, the first thin film layer is brought into contact with the surface of the cloth layer, and the second thin film layer is brought into contact with the cloth layer. 2. The method for producing a composite fabric according to claim 1, wherein the laminated member is obtained by contacting with a surface opposite to a surface with which the first thin film layer is contacted.

In the step of providing the thin film layer and the fabric layer, the fabric layer is formed with a thread made of a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic. It is preferable to create by a knit process.

The cloth layer is preferably formed by a knit process, a circular woven process, a plain weaving process, or shuttle weaving.

In the step of weaving the fabric layer, the fabric layer includes a first auxiliary yarn made of a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic. Preferably, the yarn comprises a yarn having a thermoplastic elastomer, a thermoplastic, and a second auxiliary yarn made of a material selected from the group consisting of the thermoplastic elastomer and the thermoplastic plastic. .

The first auxiliary yarn is made of a thermoplastic plastic, the second auxiliary yarn is made of a thermoplastic elastomer, and, based on the total weight of the yarn, the second auxiliary yarn is: This preferably accounts for 10 to 90 weight percent.

In the step of providing the thin film layer and the fabric layer, the fabric layer comprises a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic. It is preferable that the yarn comprises a single yarn, a thermoplastic elastomer, a thermoplastic, and a second yarn made of a material selected from the group consisting of a combination of the thermoplastic elastomer and the thermoplastic.

According to a fourth aspect of the present invention, the fabric layer is made of a material which has a hardness of 85A to 90D and is a thermoplastic having a melting point higher than or equal to 160 degrees Celsius and lower than or equal to 300 degrees Celsius,
The thin film layer is made of a material which is a thermoplastic having a hardness of 10A to 98A and having a melting point higher than or equal to 50 degrees Celsius and lower than or equal to 150 degrees Celsius. A method for producing a composite fabric.

The thermoplastic plastic may be polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), nylon (nylon), polycarbonate (polycarbon tetrafluoro PC). Ethene (polytetrafluoroethylene, PTFE), polyoxymethylene (polyoxymethylene, POM), polyolefin (polyolefin, POF), polyacrylonitrile (PAN), polystyrene (polystyrene, PS), polysulfone (PS) Polysulfone (polysulfone), polyethersulfone (polyethersulfone), and polyurethane (polyurethane, PU) are preferable.

The thin film layer preferably has a thickness greater than or equal to 0.001 mm and less than or equal to 1 mm.

The invention according to claim 5 of the present application is characterized in that the hot press temperature is higher than or equal to 50 degrees Celsius and lower than or equal to 220 degrees Celsius. provide.

The thermoplastic elastomer may be a thermoplastic polyurethane (TPU) elastomer, a thermoplastic olefin (TPO) elastomer, a thermoplastic polyamide (TPA) elastomer, a thermoplastic polystyrene (thermoplastic TP) elastomer. Thermoplastic polyether ester elastomer (thermoplastic rubber, TPEE), thermoplastic rubber (thermoplastic rubber, TPR), or thermoplastic vulcanized rubber (thermoplastic vulcanizer) Preferably a TPV). .

The invention according to claim 6 of the present application is characterized in that the cloth layer is made of a material that is a thermoplastic elastomer, and the thin film layer is made of a material that is a thermoplastic elastomer. A method for producing a composite fabric as described in 1. Further, the hardness and melting point of the thermoplastic elastomer can be adjusted by the ratio of the soft segment and the hard segment of the thermoplastic elastomer. It is preferable that the soft segment occupies 20% to 80% and the hard segment occupies 80% to 20% in the total thermoplastic elastomer. Furthermore, it is more preferable that the cloth layer and the thin film layer are made of the same material. Since the cloth layer and the thin film layer made of the same material are more reliably bonded to each other, the obtained composite fabric has excellent tear strength.

The invention according to claim 7 of the present application is a first fabric layer comprising a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic. And a first cloth having a first surface and a second surface, wherein the first cloth layer is dispersedly arranged in the first cloth layer, and a plurality of gaps are formed to communicate the first surface and the second surface. Layers,
A first thin film layer comprising a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and thermoplastic, the melting point of the first fabric layer The first surface having a lower melting point and a third surface, and having a fourth surface abutting against the first surface of the first fabric layer, a portion of which abuts against the fourth surface There is provided a composite fabric comprising a first thin film layer that penetrates into the first fabric layer through a gap of the first fabric layer from a first surface of the fabric layer.

Further, the fourth surface of the first thin film layer according to the present invention is brought into contact with the first surface of the first fabric layer and penetrates the first fabric layer through the gap of the first fabric layer. Thereby, since this 1st thin film layer and this 1st fabric layer are couple | bonded reliably, the intensity | strength of this composite fabric can be improved.

The invention of claim 8 of the present application further includes a second fabric layer selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic. The material has a melting point higher than the melting point of the first thin film layer, a fifth surface in contact with the third surface of the first thin film layer, and a sixth surface, and is dispersed in the second fabric layer A second fabric layer disposed and formed with a plurality of gaps communicating with the fifth surface and the sixth surface;
A part of the first thin film layer infiltrates into the second fabric layer through a gap of the second fabric layer from a fifth surface of the second fabric layer in contact with the third surface. Item 8. A composite fabric according to Item 7.

The invention of claim 9 of the present application further comprises a second thin film layer selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic. The material comprises a melting point lower than the melting point of the first fabric layer, a third surface, and a fourth surface in contact with the second surface of the first fabric layer, and a part of the fourth surface The composite fabric according to claim 7, further comprising a second thin film layer that penetrates into the first fabric layer through a gap of the first fabric layer from a second surface of the first fabric layer in contact with the fabric. ,I will provide a.

According to a tenth aspect of the present invention, the first fabric layer is made of a material having a hardness of 85A to 90D and a thermoplastic having a melting point higher than or equal to 160 degrees Celsius and lower than or equal to 300 degrees Celsius. Become
8. The first thin film layer is made of a material having a hardness of 10A to 98A and a thermoplastic having a melting point higher than or equal to 50 degrees Celsius and lower than or equal to 150 degrees Celsius. A composite fabric as described in 1. above.

The invention according to claim 11 of the present application provides the composite fabric according to claim 7, wherein the first thin film layer has a thickness greater than or equal to 0.001 mm and less than or equal to 1 mm. .

The invention of claim 12 of the present application is characterized in that the first fabric layer is made of a material that is a thermoplastic elastomer, and the first thin film layer is made of a material that is a thermoplastic elastomer. A composite fabric according to claim 7 is provided.

Since the surface treatment method of the present invention has the above-described configuration, the organic solvent is not used during the dough processing step, so the problem of remaining organic solvent in the conventional technique can be solved, and the surface of the present invention The dough which is produced by the treatment method and has no organic solvent residue can be provided.

It is a disassembled perspective view which shows the fabric layer and thin film layer in Example 1 of the composite fabric which concerns on this invention. It is sectional drawing which shows the laminated member which consists of a fabric layer and thin film layer in Example 1 of the composite fabric which concerns on this invention. It is sectional drawing of Example 1 of the composite fabric which concerns on this invention. It is a disassembled perspective view which shows the cloth layer and thin film layer in Example 6 of the composite fabric based on this invention. It is a disassembled perspective view which shows the fabric layer and thin film layer in Example 8 of the composite fabric based on this invention. It is sectional drawing which shows the manufacturing method of the conventional cloth | dough which consists of an application | coating process technique. It is a perspective view of the conventional cloth | dough which consists of an application | coating process technique. It is a perspective view which shows the manufacturing method of the conventional cloth | dough which consists of thin film processing techniques. It is sectional drawing of the conventional fabric which consists of a thin film processing technique.

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

[Example 1]
This example relates to an embodiment of the composite fabric according to the present invention.

As shown in FIGS. 1 to 3, the composite fabric 10 according to the present embodiment is manufactured by using a yarn made from thermoplastic polyurethane (hardness: 85 A, melting point: 180 degrees Celsius, molecular weight: 50000 Da to 100000 Da) ( 300D / 72F) is woven by shuttle weaving. In this embodiment, the size of the fabric layer 11 is 21 cm × 30 cm, and has a first surface 111 and a second surface 112 located on the opposite side of the first surface 111, and the fabric layer 11 A plurality of gaps 113 are formed which are distributed and arranged to communicate the first surface 111 and the second surface 112. The thin film layer 12 is a thin film having a continuous plane manufactured by uniaxial skew extrusion from thermoplastic polyurethane (hardness: 98A, melting point: 60 degrees Celsius, molecular weight: 5000 Da to 10,000 Da). The size of the thin film layer 12 is 21 cm × 30 cm and has a thickness of 0.025 mm. The thin film layer 12 includes a third surface 121 and a fourth surface 122 located on the opposite side of the third surface 121.

As shown in FIG. 2, the laminated member 20 can be obtained by bringing the first surface 111 of the fabric layer 11 into contact with the fourth surface 122 of the thin film layer 12. The laminated member 20 includes the fabric layer 11 and the thin film layer 12, and has an upper surface and a lower surface. The upper surface of the laminated member 20 is the third surface 121 of the thin film layer 12, and the lower surface of the laminated member 20 is the second surface 112 of the fabric layer 11. The first surface 111 of the fabric layer 11 and the fourth surface 122 of the thin film layer 12 form a boundary surface of the laminated member 20. After preheating the upper and lower surfaces of the laminated member 20 for 30 minutes at a preheating temperature of 60 degrees Celsius, the laminated member 20 is heated at a hot pressing temperature of 70 degrees Celsius and a hot pressing pressure of 5 kg / cm ^2. A press member is obtained by subjecting the upper surface and the lower surface to hot pressing for 5 minutes. Finally, the press member is cooled to room temperature to obtain a composite fabric 10 (shown in FIG. 3).

When the laminated member 20 is preheated and hot pressed, the preheating temperature is not only equal to the melting point of the thermoplastic polyurethane that forms the thin film layer 12, but the hot pressing temperature causes the thin film layer 12 to be formed. Since the melting point of the thermoplastic polyurethane is slightly higher, the fourth surface 122 of the thin film layer 12 is in a heat-melted state. The fourth surface 122 of the thin film layer 12 in the heat-melted state penetrates from the first surface 111 of the fabric layer 11 into the gap 113 of the fabric layer 11 to form the press member. That is, when viewed on a micro scale, the laminated member 20 has a remarkable boundary surface before being preheated and hot pressed, but in a press member formed by preheating and hot pressing, The boundary surface with the thin film layer 12 becomes unclear. Furthermore, when the press member is cooled, the thin film layer 12 that penetrates into the gap 113 of the fabric layer 11 can reliably bond the thin film layer 12 and the fabric layer 11.

After the hot pressing, the pressing member has an upper surface and a lower surface, the upper surface of the pressing member is the third surface 121 of the thin film layer 12, and the lower surface of the pressing member is the fabric layer 11. The second surface 112 of The first surface 111 of the fabric layer 11 and the fourth surface 122 of the thin film layer 12 form a boundary surface of the press member, but as described above, the boundary surface is not clear.

As shown in FIGS. 1 and 3, the composite fabric 10 includes the cloth layer 11 and the thin film layer 12. The fabric layer 11 has a first surface 111 and a second surface 112 located on the opposite side of the first surface 111, and is distributed and disposed on the fabric layer 11, and the first surface 111 and the A plurality of gaps 113 communicating with the second surface 112 are formed. The thin film layer 12 has a third surface 121 and a fourth surface 122 that is located on the opposite side of the third surface 121 and abuts on the first surface 111 of the fabric layer 11. Further, a part of the thin film layer 12 penetrates into the fabric layer 11 through the gap 113 of the fabric layer 11 from the first surface 111 of the fabric layer 11 in contact with the fourth surface 122. In other words, in the composite fabric 10, the boundary surface between the fabric layer 11 and the thin film layer 12 is not clear.

The manufacturing method of the composite fabric 10 according to the present embodiment creates the composite fabric 10 by selecting the cloth layer 11 and the thin film layer 12 having a specific melting point and performing preheating, hot pressing and cooling steps. Since no organic solvent is used in the process of making the composite dough 10, the obtained composite dough 10 has no problem of residual organic solvent, and no steps relating to the organic solvent are applied to the process. Therefore, it is possible to omit the steps of volatilizing or aging the organic solvent, and the effect of shortening the process time can be obtained.

[Example 2]
The present example relates to an embodiment of the composite fabric according to the present invention, and is substantially the same as the first example, but is different in the following points.

A method for producing a composite fabric according to the present example includes thermoplastic polyolefin elastomer (hardness: 60D, melting point: 150 degrees Celsius, molecular weight: 60000 Da to 80000 Da) and polypropylene (melting point: 170 degrees Celsius, molecular weight: 300000 Da to 400000 Da). A first polymer mixture is prepared having a thermoplastic polyolefin elastomer: polypropylene weight ratio of 1: 2 and a melting point of 160 degrees Celsius. The fabric layer is woven by shuttle weaving yarn (450D / 144F) formed from the first polymer mixture. The thin film layer is a thin film having a thickness of 0.025 mm manufactured from a thermoplastic polyolefin elastomer (hardness: 80A, melting point: 90 degrees Celsius, molecular weight: 30000 Da to 50000 Da) by uniaxial skew extrusion. In this example, the preheating temperature is 90 degrees Celsius, the hot pressing temperature is 100 degrees Celsius, and the hot pressing pressure is 5 kg / cm ² .

Example 3
The present example relates to an embodiment of the composite fabric according to the present invention, and is substantially the same as the first example, but is different in the following points.

The method for producing a composite fabric according to this example includes a first auxiliary yarn (150D / 24F) formed from a thermoplastic polyamide elastomer (hardness: 60D, melting point: 200 degrees Celsius, molecular weight: 30000 Da to 50000 Da), and nylon. 6 (melting point: 255 degrees Celsius, molecular weight: 20000 Da to 40000 Da), from the second auxiliary yarn (150D / 24F), the ratio of the number of first auxiliary yarn: second auxiliary yarn is 2: 1, The fabric layer is woven by shuttle weaving the yarn (450D / 72F) formed by the twisting process. The thin film layer is a thin film having a thickness of 0.025 mm manufactured from a thermoplastic polyamide elastomer (hardness: 50D, melting point: 130 degrees Celsius, molecular weight: 10000 Da to 20000 Da) by uniaxial skew extrusion. In this example, the preheating temperature is 130 degrees Celsius, the hot pressing temperature is 140 degrees Celsius, and the hot pressing pressure is 5 kg / cm ² .

Example 4
The present example relates to an embodiment of the composite fabric according to the present invention, and is substantially the same as the first example, but is different in the following points.

In the method for producing a composite fabric according to this example, the yarn has a first yarn (150D / 24F) and a second yarn (150D / 24F). The first yarn is made from polyethylene terephthalate (melting point: 260 degrees Celsius, molecular weight: 20000 Da to 25000 Da), and the second thread is nylon 66 (melting point: 265 degrees Celsius, molecular weight: 20000 Da to 30000 Da). ). The fabric layer is woven by shuttle weaving the first yarn and the second yarn at a ratio of the first yarn: second yarn ratio of 1: 2. The thin film layer is a thin film having a thickness of 0.025 mm manufactured by uniaxial skew extrusion from a thermoplastic polyetherester elastomer (hardness: 35D, melting point: 150 degrees Celsius, molecular weight: 30000 Da to 40000 Da). . In this example, the preheating temperature is 150 degrees Celsius, the hot pressing temperature is 160 degrees Celsius, and the hot pressing pressure is 10 kg / cm ² .

Example 5
The present example relates to an embodiment of the composite fabric according to the present invention, and is substantially the same as the first example, but is different in the following points.

The method for producing a composite fabric according to the present example involves weaving the cloth layer by shuttle weaving yarn (300D / 72F) made from polyethylene terephthalate (melting point: 260 degrees Celsius, molecular weight: 20000 Da to 25000 Da). . Further, in this example, a uniaxial skew pressure was obtained from a second polymer mixture prepared by mixing a thermoplastic polyurethane and a thermoplastic polyolefin elastomer in a weight ratio of 1: 2 and having a melting point of 90 degrees Celsius and a hardness of 90 A. The thin film layer having a thickness of 0.025 mm is produced. In this example, the preheating temperature is 90 degrees Celsius, the hot pressing temperature is 100 degrees Celsius, and the hot pressing pressure is 5 kg / cm ² .

Example 6
This example relates to an embodiment of the composite fabric according to the present invention.

As shown in FIG. 4, the method for producing the composite fabric 10 according to the present example is as follows. A yarn (150D / 72F) made from polyethylene terephthalate (melting point: 260 degrees Celsius, molecular weight: 20000 Da to 25000 Da) Thus, the fabric layer 11A is woven. In this embodiment, the size of the fabric layer 11A is 21 cm × 30 cm, has a first surface 111A and a second surface 112A located on the opposite side of the first surface 111A, and the fabric layer 11A. A plurality of gaps 113 </ b> A are formed which are distributed and arranged to communicate the first surface 111 </ b> A and the second surface 112 </ b> A. Also, two thin film layers 12A composed of a first thin film layer and a second thin film layer are manufactured from thermoplastic polyurethane (hardness: 98A, melting point: 60 degrees Celsius, molecular weight: 5000 Da to 10,000 Da) by uniaxial skew extrusion. To do. Each thin film layer 12A has a size of 21 cm × 30 cm, and each thin film layer 12A has a thickness of 0.015 mm. Each thin film layer 12A includes a third surface 121A and a fourth surface 122A located on the opposite side of the third surface 121A.

A laminated member can be obtained by bringing the fourth surfaces 122A of the two thin film layers 12A into contact with the first surface 111A and the second surface 112A of the cloth layer 11A, respectively. The laminated member is composed of the fabric layer 11A and the two thin film layers 12A, and has an upper surface and a lower surface. The upper surface and the lower surface of the laminated member are the third surface 121A of the thin film layer 12A. The fourth surface 122A of the thin film layer 12A forms a first surface 111A and a second surface 112A of the fabric layer 11A, and a first boundary surface and a second boundary surface of the laminated member, respectively. After preheating the upper and lower surfaces of the laminated member for 30 minutes at a preheating temperature of 50 degrees Celsius, the upper surface of the laminated member is heated at a hot pressing temperature of 60 degrees Celsius and a hot pressing pressure of 20 kg / cm ^2. A press member is obtained by performing hot pressing on the surface and the lower surface for 5 minutes. Finally, the press member is cooled to room temperature to obtain a composite dough.

When preheating and hot pressing the laminated member, the preheating temperature is not only equal to the melting point of the thermoplastic polyurethane for forming the two thin film layers 12A, but the hot pressing temperature is not limited to the two thin film layers 12A. Therefore, the fourth surface 122A of the two thin film layers 12A is in a heat-melted state. The fourth surfaces 122A of the two thin film layers 12A that are in the heat-melting state penetrate into the gap 113A of the fabric layer 11A from the first surface 111A and the second surface 112A of the fabric layer 11A, respectively. A press member is formed. That is, when viewed on a micro scale, the laminated member has a remarkable first boundary surface and a second boundary surface before preheating and hot pressing, but in a press member formed by preheating and hot pressing, The boundary surface between the cloth layer 11A and the two thin film layers 12A becomes unclear. Further, when the press member is cooled, the two thin film layers 12A that penetrate into the gap 113A of the fabric layer 11A respectively securely bond the two thin film layers 12A and the fabric layer 11A. be able to.

The press member has an upper surface and a lower surface, and the upper surface and the lower surface of the press member are respectively the third surfaces 121A of the two thin film layers 12A. The first surface 111A and the second surface 112A of the cloth layer 11A form the fourth surface 122A of the two thin film layers 12A and the first boundary surface and the second boundary surface of the press member, respectively. As described above, the first boundary surface and the second boundary surface are not clear.

The composite fabric 10A includes the cloth layer 11A and the two thin film layers 12A. The fabric layer 11A has a first surface 111A and a second surface 112A located on the opposite side of the first surface 111A, and is distributed and disposed on the fabric layer 11A. A plurality of gaps 113A that communicate with the second surface 112A are formed. The two thin film layers 12A each have a third surface 121A and a fourth surface 122A that is located on the opposite side of the third surface 121A and abuts on the first surface 111A of the fabric layer 11A. Further, a part of the two thin film layers 12A penetrates the cloth layer 11A from the first surface 111A of the cloth layer 11A in contact with the fourth surface 122A through the gap 113A of the cloth layer 11A. . In other words, in the composite fabric 10A, the boundary surface between the fabric layer 11A and the two thin film layers 12A is not clear.

Example 7
This example relates to an embodiment of the composite fabric according to the present invention, and is substantially the same as the example 6, but differs in the following points.

In the method for producing a composite fabric according to this example, a yarn (300D / 36F) formed from thermoplastic polyurethane (hardness: 50A, melting point: 190 degrees Celsius, molecular weight: 50000 Da to 100000 Da) is formed by the knit process. Weave the fabric layer. The thin film layer is a thin film having a thickness of 0.01 mm manufactured by uniaxial skew extrusion from thermoplastic polyurethane (melting point: 85 degrees Celsius, hardness: 90 A, molecular weight: 10,000 Da to 20000 Da). In this example, the preheating temperature is 85 degrees Celsius, the hot pressing temperature is 100 degrees Celsius, and the hot pressing pressure is 25 kg / cm ² .

Example 8
This example relates to an embodiment of the composite fabric according to the present invention.

As shown in FIG. 5, the manufacturing method of the composite fabric according to the present embodiment knits the first yarn (150D / 24F) formed from nylon 66 (melting point: 265 degrees Celsius, molecular weight: 20000 Da to 30000 Da). According to the process, the first fabric layer 13 having a size of 21 cm × 30 cm is woven. The first fabric layer 13 has a first surface 131 and a second surface 132 located on the opposite side of the first surface 131, and is distributed and disposed on the fabric layer 13. And a plurality of gaps 133 are formed to communicate with the second surface 132. In addition, the thin film layer 14 is manufactured from thermoplastic polyurethane (hardness: 98A, melting point: 60 degrees Celsius, molecular weight: 5000 Da to 10000 Da) by uniaxial skew extrusion. The size of the thin film layer 14 is 21 cm × 30 cm, and the thin film layer 14 has a thickness of 0.025 mm. The thin film layer 14 includes a third surface 141 and a fourth surface 142 located on the opposite side of the third surface 141. A second fabric layer 15 having a size of 21 cm × 30 cm is woven by a knit process using a second yarn made from thermoplastic polyurethane (hardness: 95A, melting point: 180 degrees Celsius, molecular weight: 50000 Da to 80000 Da). To do. The second fabric layer 15 has a fifth surface 151 and a sixth surface 152 located on the opposite side of the fifth surface 151. The second fabric layer 15 is distributed on the fabric layer 15 and has the fifth surface 151. And a plurality of gaps 153 that communicate with the sixth surface 152 are formed.

By bringing the first surface 131 of the first fabric layer 13 and the sixth surface 152 of the second fabric layer 15 into contact with the third surface 141 and the fourth surface 142 of the thin film layer 14, respectively, a laminated member Can be obtained. The laminated member includes the first cloth layer 13, the second cloth layer 15, and the thin film layer 14, and has an upper surface and a lower surface. The upper surface and the lower surface of the laminated member are the second surface 132 of the first fabric layer 13 and the fifth surface 151 of the second fabric layer 15. The first surface 131 of the first fabric layer 13 and the fourth surface 142 of the thin film layer 14 form a first interface of the laminated member, and the sixth surface 152 of the second fabric layer 15 and the thin film The third surface 141 of the layer 14 forms the second interface of the laminated member. After preheating the upper and lower surfaces of the laminated member for 30 minutes at a preheating temperature of 60 degrees Celsius, the upper surface of the laminated member is heated at a hot pressing temperature of 80 degrees Celsius and a hot pressing pressure of 50 kg / cm ^2. A press member is obtained by performing hot pressing on the surface and the lower surface for 5 minutes. Finally, the press member is cooled to room temperature to obtain a composite dough.

When preheating and hot pressing the laminated member, the preheating temperature is not only equal to the melting point of the thermoplastic polyurethane that forms the thin film layer 14, but the hot pressing temperature is the heat that forms the thin film layer 14. Since the melting point of the plastic polyurethane is slightly higher, the fourth surface 142 of the thin film layer 14 is in a heat-melted state. The fourth surface 142 of the thin film layer 14 in the heat-melted state is respectively the first surface 131 of the first fabric layer 13 and the sixth surface 152 of the second fabric layer 15, respectively. It penetrates into the gap 133 of the fabric layer 13 and the gap 153 of the second fabric layer 15 to form the press member. That is, when viewed on a micro scale, the laminated member has a remarkable first boundary surface and a second boundary surface before preheating and hot pressing, but in a press member formed by preheating and hot pressing, The first boundary surface between the first fabric layer 13 and the thin film layer 14 and the second boundary surface between the second fabric layer 15 and the thin film layer 14 are unclear. Further, when the pressing member is cooled, a part of the thin film layer 14 that permeates into the gap 133 of the first fabric layer 13 and the gap 153 of the second fabric layer 15 respectively is separated from the thin film layer 14 and the first fabric layer 14. The cloth layer 13 and the thin film layer 14 and the second cloth layer 15 can be reliably bonded to each other.

The press member has an upper surface and a lower surface, and the upper surface and the lower surface of the press member are respectively the third surfaces 121A of the two thin film layers 12A. The first surface 111A and the second surface 112A of the cloth layer 11A form the fourth surface 122A of the two thin film layers 12A and the first boundary surface and the second boundary surface of the press member, respectively. As described above, the first boundary surface and the second boundary surface are not clear.

The composite fabric has the first fabric layer 13, the second fabric layer 15, and the thin film layer 14. The first fabric layer 13 has a first surface 131 and a second surface 132 located on the opposite side of the first surface 131, and is distributed and disposed on the fabric layer 13. And a plurality of gaps 133 are formed to communicate with the second surface 132. The second fabric layer 15 has a first surface 151 and a second surface 152 located on the opposite side of the first surface 151, and is distributed on the fabric layer 15, and the first surface 151. And a plurality of gaps 153 that communicate with the second surface 152 are formed. The thin film layer 14 is positioned on the opposite side of the third surface 141 to be in contact with the sixth surface 152 of the second fabric layer 15 and the first surface of the first fabric layer 13. And a fourth surface 142 abutting against 131. Further, a part of the thin film layer 14 is passed through the gap 153 of the second fabric layer 15 from the sixth surface 152 of the second fabric layer 15 in contact with the third surface 141, respectively. 15 oozes. From the first surface 131 of the first fabric layer 13 that is in contact with the fourth surface 142, the first fabric layer 13 penetrates through the gap 133 of the first fabric layer 13. In other words, in the composite fabric, the boundary surface between the first fabric layer 13 and the thin film layer 14 and the boundary surface between the second fabric layer 15 and the thin film layer 14 are not clear.

Example 9
This example relates to an embodiment of the composite fabric according to the present invention, and is substantially the same as the example 8, but is different in the following points.

In the method for producing a composite fabric according to this example, the first yarn (150D / 36F) and the second yarn (150D / 36F) are both thermoplastic polyurethane (hardness: 64D, melting point: 210 degrees Celsius, molecular weight: 80000 Da or 120,000 Da). The first yarn layer and the second yarn layer are woven by the knit process, respectively. In this example, a thermoplastic polyurethane and a thermoplastic polystyrene elastomer were prepared at a weight ratio of 7: 3, and a uniaxial skew extrusion was performed from a fourth polymer mixture having a melting point of 65 degrees Celsius and a hardness of 95 A. The thin film layer having a thickness of 0.03 mm is manufactured. In this example, the preheating temperature is 65 degrees Celsius, the hot pressing temperature is 85 degrees Celsius, and the hot pressing pressure is 30 kg / cm ² .

[Comparison 1]
This proportionality relates to a fabric made of a coating technique.

In this contrast, a yarn (300D / 72F) made from polyethylene terephthalate (melting point: 260 degrees Celsius, molecular weight: 20000 Da to 25000 Da) is woven into a fabric having a size of 21 cm × 30 cm by a knit process. A polymer coating solution prepared by dissolving thermoplastic polyurethane (hardness: 64D, melting point: 210 degrees Celsius, molecular weight: 80000 Da to 120,000 Da) with 20% butanone was applied to the fabric for 1 hour. After baking and cooling to room temperature, a dough made of a coating technique can be obtained.

[Comparison 2]
This contrast relates to a fabric made of thin film processing technology.

In this contrast, a yarn (300D / 72F) made from polyethylene terephthalate (melting point: 260 degrees Celsius, molecular weight: 20000 Da to 25000 Da) is woven into a fabric having a size of 21 cm × 30 cm by a knit process. A hot melt adhesive made of 30% butanone is dot-applied to the fabric, and then a thin film layer made of thermoplastic polyurethane (hardness: 95A, melting point: 160 degrees Celsius, molecular weight: 50000 Da to 80000 Da) is pasted on the fabric. By attaching, a laminated member is obtained. When the laminated member can be hot-pressed at a temperature of 130 degrees Celsius and a hot-pressing pressure of 1 kg / cm ² and cooled to room temperature, a fabric made of a thin film processing technique can be obtained.

[Test Example 1]
This test example relates to a moisture permeability test.

Japanese Industrial Standard L 1099A1 (Japan Industrial Standard) for the composite fabric according to Examples 1 to 9, the fabric composed of the coating processing technology according to Comparative 1 and the fabric composed of the thin film processing technology according to Comparative 2 Table 1 shows the results of testing the moisture permeability according to the method described in L 1099A1, JIS L 1099A1).

[Test Example 2]
This test example relates to a waterproof test.

The Japanese Industrial Standard L 1092 (Japan Industrial Standard) is used for the composite fabric according to Examples 1 to 9, the fabric composed of the coating processing technology according to Comparative Example 1, and the fabric composed of the thin film processing technology according to Comparative Example 2. The results of testing the water pressure resistance according to the method described in L 1092 and JIS L 1092) are shown in Table 1.

[Test Example 3]
This test example relates to a tear strength test.

The International Organization for Standardization 13937 (International Organization for Standardization) is applied to the composite fabric according to Examples 1 to 9, the fabric composed of the coating processing technology according to Comparative Example 1, and the fabric composed of the thin film processing technology according to Comparative Example 2. Table 1 shows the results of testing the tear strength according to the method described in 13937, ISO 13937).

According to Table 1, the first embodiment to the ninth embodiment having a complete film shape as compared with the fabric made of the coating processing technology according to the comparative 1 and the fabric made of the thin film processing technology according to the comparative 2 It can be seen that the composite fabric is excellent in water pressure resistance.

According to Table 1, the embodiment in which the thin film layer and the cloth layer are more reliably combined as compared with the fabric made of the coating processing technology according to the proportional 1 and the fabric made of the thin film processing technology according to the proportional 2 It turns out that the composite fabric which concerns on 1 thru | or Example 9 is excellent in tear strength.

When the composite fabrics according to Examples 1 to 5 are compared, the thin film layer and the fabric layer are made of the same material, so that the thin film layer and the fabric layer are more reliably bonded. It can be seen that the composite fabric according to Example 3 is superior in tear strength to the composite fabric according to Examples 4 and 5.

When the composite fabrics according to Examples 1 to 7 are compared, the composite fabrics according to Examples 6 and 7 having two thin film layers and having improved thickness and interlayer adhesion properties are It can be seen that the composite fabric according to Examples 1 to 5 is superior in water pressure resistance and tear strength. Further, when the composite fabrics according to Example 6 and Example 7 are compared, since the thin film layer and the fabric layer are made of the same material as the composite fabric according to Example 6, the thin film layer and the fabric layer It can be seen that the composite fabric according to Example 7 to which is more reliably bonded has excellent tear strength.

In the present invention, since no organic solvent is used during the dough processing step, the problem of residual organic solvent in the prior art can be solved. Moreover, the dough excellent in the intensity | strength without the organic solvent produced by the surface treatment method of this invention can be provided.

10 Composite fabric
11, 11A Fabric layer 111, 111A First surface
112, 112A Second surface 113, 113A Gap
12, 12A Thin film layer 121, 121A Third surface
122, 122A Fourth surface 13 First fabric layer
131 First surface 132 Second surface
133 Gap 14 Thin film layer
141 Third surface 142 Fourth surface
15 Second fabric layer 151 Fifth surface
152 sixth surface 153 gap

As shown in FIGS . 6 , 7, and 8 , the coating processing technique is such that a polymer coating solution 70 in which a polymer is dissolved in an organic solvent filled in a tank 80 is transferred via a coating wheel 91. Apply to the fabric 51 conveyed at 90. When the organic solvent of the polymer coating solution 70 is volatilized, the coated fabric 50 is formed by the fabric 51 and a polymer layer 71 that covers the surface of the fabric 51 and is aged by the polymer coating solution 70 (see FIG. 7).

As shown in FIGS. 9 and 10 , the thin film processing technique is such that a heat-bonding bond solution 62 obtained by dissolving a polymer in an organic solvent is applied so as to be scattered on the surface of the cloth 61, and then the thin film 63 is formed. By heating and pressurizing the surface of the fabric 61 to which the heat-bonding bond solution 62 has been applied, the fabric 61, a heat-bonding layer 64 comprising the heat-bonding solution 62 applied to the fabric 61, A laminated fabric 60 (see FIG. 9) made of the thin film 63 is produced.

It is a disassembled perspective view which shows the fabric layer and thin film layer in Example 1 of the composite fabric which concerns on this invention. It is sectional drawing which shows the laminated member which consists of a fabric layer and thin film layer in Example 1 of the composite fabric which concerns on this invention. It is sectional drawing of Example 1 of the composite fabric which concerns on this invention. It is a disassembled perspective view which shows the cloth layer and thin film layer in Example 6 of the composite fabric based on this invention. It is a disassembled perspective view which shows the fabric layer and thin film layer in Example 8 of the composite fabric based on this invention. It is sectional drawing which shows the manufacturing method of the conventional cloth | dough which consists of an application | coating process technique. It is a perspective view of the conventional cloth | dough which consists of an application | coating process technique. It is an expansion perspective view of the polymer layer apply | coated to the conventional fabric which consists of an application | coating process technique. It is a perspective view which shows the manufacturing method of the conventional cloth | dough which consists of thin film processing techniques. It is sectional drawing of the conventional fabric which consists of a thin film processing technique.

Claims (12)

A thin film layer made of a material having a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic, a thermoplastic elastomer, a thermoplastic, and the heat Providing a fabric layer comprising a material having one selected from the group consisting of a combination of a plastic elastomer and a thermoplastic and having a melting point higher than the melting point of the thin film layer;
The step of forming the laminated member by bringing the fabric layer into contact with the thin film layer is equal to or higher than the melting point of the thin film layer, and the laminated member is heated at a preheating temperature lower than the melting point of the fabric layer. The laminated member at a hot pressing temperature higher than or equal to the melting point of the thin film layer, lower than the melting point of the fabric layer and higher than the preheating temperature, and a hot pressing pressure of 0.1 kg / cm ² to 100 kg / cm ^2. Heating and pressing the laminated member to obtain a pressed member;
And a step of obtaining a composite fabric by cooling the press member. In the step of providing the thin film layer and the fabric layer, the fabric layer includes a first fabric layer and a second fabric layer, and the material of the first fabric layer is a thermoplastic elastomer, a thermoplastic plastic, A material selected from the group consisting of the thermoplastic elastomer and a combination of thermoplastics, and the material of the second fabric layer is a thermoplastic elastomer, a thermoplastic, the thermoplastic elastomer and a thermoplastic A combination of plastics, the melting point of the first fabric layer and the melting point of the second fabric layer are both higher than the melting point of the thin film layer, the melting point of the first fabric layer And the melting point of the second fabric layer is higher than the preheating temperature and the hot press temperature,
In the step of forming the laminated member by bringing the cloth layer into contact with the thin film layer, the first cloth layer is brought into contact with the surface of the thin film layer, and the second cloth layer is brought into contact with the thin film layer. The method for producing a composite fabric according to claim 1, wherein the laminated member is obtained by contacting a surface opposite to a surface with which the first fabric layer is contacted. In the step of providing the thin film layer and the fabric layer, the thin film layer includes a first thin film layer and a second thin film layer, and the material of the first thin film layer is a thermoplastic elastomer, a thermoplastic plastic, A material selected from the group consisting of the thermoplastic elastomer and a combination of thermoplastics, and the material of the second thin film layer is a thermoplastic elastomer, a thermoplastic, the thermoplastic elastomer and a thermoplastic And a combination of plastics, wherein both the melting point of the first thin film layer and the melting point of the second thin film layer are lower than the melting point of the cloth layer, and the melting point of the first thin film layer And the melting point of the second thin film layer is lower than the preheating temperature and the hot press temperature,
In the step of forming a laminated member by bringing the cloth layer into contact with the thin film layer, the first thin film layer is brought into contact with the surface of the cloth layer, and the second thin film layer is brought into contact with the cloth layer. The method for producing a composite fabric according to claim 1, wherein the laminated member is obtained by contacting with a surface opposite to a surface with which the first thin film layer is contacted. The fabric layer is made of a material which is a thermoplastic having a hardness of 85A to 90D and having a melting point higher than or equal to 160 degrees Celsius and lower than or equal to 300 degrees Celsius;
The thin film layer is made of a material which is a thermoplastic having a hardness of 10A to 98A and having a melting point higher than or equal to 50 degrees Celsius and lower than or equal to 150 degrees Celsius. Manufacturing method of composite fabric. The method for producing a composite fabric according to claim 1, wherein the hot press temperature is higher than or equal to 50 degrees Celsius and lower than or equal to 220 degrees Celsius. The method for producing a composite fabric according to claim 1, wherein the cloth layer is made of a material that is a thermoplastic elastomer, and the thin film layer is made of a material that is a thermoplastic elastomer. . A first fabric layer comprising a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of said thermoplastic elastomer and thermoplastic; a first surface; A first fabric layer having a surface and being distributed in the first fabric layer, wherein a plurality of gaps are formed to communicate the first surface and the second surface;
A first thin film layer comprising a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and thermoplastic, the melting point of the first fabric layer A lower melting point, a third surface, and a fourth surface abutting against the first surface of the first fabric layer, a portion of the first fabric layer abutting against the fourth surface A composite fabric comprising: a first thin film layer that penetrates into the first fabric layer through a gap between the first surface and the first fabric layer. Further, the second thin film layer is made of a material having a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic plastic, and a combination of the thermoplastic elastomer and the thermoplastic plastic, and the first thin film layer. A melting point higher than the melting point of the first thin film layer, a fifth surface in contact with the third surface of the first thin film layer, and a sixth surface. And a second fabric layer formed with a plurality of gaps communicating with the sixth surface,
A part of the first thin film layer infiltrates into the second fabric layer through a gap of the second fabric layer from a fifth surface of the second fabric layer in contact with the third surface. Item 8. The composite fabric according to Item 7. Furthermore, the second fabric layer is made of a material having a material selected from the group consisting of a thermoplastic elastomer, a thermoplastic, and a combination of the thermoplastic elastomer and the thermoplastic, and the first fabric layer The first cloth that has a melting point lower than the melting point of the first cloth layer, a third surface, and a fourth surface that is in contact with the second surface of the first cloth layer, and a part of which is in contact with the fourth surface The composite fabric according to claim 7, further comprising a second thin film layer that penetrates into the first fabric layer from the second surface of the layer through the gap of the first fabric layer. The first fabric layer is made of a material which is a thermoplastic having a hardness of 85A to 90D and having a melting point higher than or equal to 160 degrees Celsius and lower than or equal to 300 degrees Celsius;
8. The first thin film layer is made of a material having a hardness of 10A to 98A and a thermoplastic having a melting point higher than or equal to 50 degrees Celsius and lower than or equal to 150 degrees Celsius. Composite fabric as described in. The composite fabric according to claim 7, wherein the first thin film layer has a thickness greater than or equal to 0.001 mm and less than or equal to 1 mm. 8. The composite according to claim 7, wherein the first fabric layer is made of a material that is a thermoplastic elastomer, and the first thin film layer is made of a material that is a thermoplastic elastomer. Cloth.

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