TWI576241B - Laminated material and method for making the same - Google Patents

Description

Laminated material and method of manufacturing same

The present invention relates to a laminated material and a method of manufacturing the same, and more particularly to a laminated material having a soft hand and a method of manufacturing the same.

Conventional laminates (such as leather or sheet) are made of plastic, or a combination of plastic deposits and substrates (eg, woven or non-woven). In the processing application, two or more laminated materials are subsequently joined by various methods such as high frequency or hot pressing. However, since the bottom of the conventional laminated material itself has no adhesion, so that the effect of the above-mentioned application processing is not good, it is necessary to reuse the paste or the multiple paste or the seam reinforcement to improve the adhesion, which may cause complicated engineering. And cost increases.

The conventional laminated materials are used in the footwear industry or other leather post-processing industries, and most of them use a large amount of manpower for sewing, affixing or other processing procedures. These processing processes are not only complicated, but also have poor effects and require a lot of manpower and Working hours increase costs. In addition, the adhesive layer of the conventional laminated material uses a hot melt adhesive, and the feeling of the entire laminated material after the hot pressing is hard and is criticized by the consumer.

Therefore, it is necessary to provide an innovative and progressive laminate and its manufacturing method to solve the above problems.

The present invention provides a laminated material comprising a mesh layer, a first adhesive layer and A first layer. The mesh layer has a first surface and a second surface, the second surface being opposite the first surface. The first adhesive layer is on the first surface of the mesh layer, and the first adhesive layer is formed of a thermoplastic resin. The first facing layer is on the first adhesive layer.

In the present invention, since the first adhesive layer of the laminate is formed of a thermoplastic resin, the handle when used is softer than the laminate having the conventional hot melt adhesive and thus has a hand feeling advantage.

1‧‧‧First embodiment of the laminated material of the present invention

2‧‧‧Second embodiment of the laminated material of the present invention

10‧‧‧ release paper

11‧‧‧Mesh layer

12‧‧‧ thermoplastic resin / first adhesive layer

13‧‧‧First high solid layer

14‧‧‧ first layer

22‧‧‧ thermoplastic resin / second adhesive layer

23‧‧‧Second high solid layer

24‧‧‧ second layer

101‧‧‧The first surface of the release paper

111‧‧‧ First surface of the mesh layer

112‧‧‧Second surface of the mesh layer

113‧‧‧through holes

1 to 6 are views showing the steps of the manufacturing process of the first embodiment of the laminated material of the present invention; and Figs. 7 to 11 are views showing the process steps of the manufacturing method of the second embodiment of the laminated material of the present invention.

Referring to Fig. 1 through Fig. 6, there are shown schematic views of the process steps of the manufacturing method of the first embodiment of the laminated material of the present invention. Referring to Figure 1, a release paper 10 is provided. The release paper 10 has a first surface 101. Preferably, the release paper 10 has a release pattern on the first surface 101.

Referring to FIG. 2, a second polymer mixture is formed on the first surface 101 of the release paper 10 by coating, wherein the second polymer mixture comprises a second polymer resin. The second polymer resin has a solid content of 15% by weight to 60% by weight, a viscosity of 500 to 10000 cps, preferably 700 to 2500 cps, and the second polymer resin is a polyurethane resin and a water-soluble type. Elastomer resin or water dispersed elastomer resin. Next, the second polymer mixture is dried at a temperature of 50 ° C to 130 ° C for 4 minutes to cure to form a first facing layer 14 . Preferably, the first facing layer 14 has a surface texture corresponding to the release pattern of the release paper 10, and the first facing layer 14 is a non-foamed layer.

Referring to FIG. 3, a first polymer mixture is formed on the first surface layer by coating. In step 14, the first polymer mixture contains at least one first polymer resin. The solid content of the first polymer resin is 70% by weight to 100% by weight, and the viscosity is 4000 to 12000 cps (that is, the solid portion of the first polymer resin is larger than the solid portion of the second polymer resin, and The viscosity of the first polymer resin is greater than the viscosity of the second polymer resin, and the material of the first polymer resin is a polyurethane resin. Next, the first polymer mixture is dried at a temperature of 100 ° C to 160 ° C for 5 minutes to cure to form a first high solid layer 13 . Preferably, the first high solid layer 13 is a non-foamed layer. It is to be noted that the first high solid layer 13 can be omitted.

Referring to FIG. 4, a thermoplastic resin 12 is formed on the first high-solid layer 13 by coating. It is to be noted that if the first high-solid layer 13 is omitted, the thermoplastic resin 12 is formed on the first surface layer 14. The thermoplastic resin 12 is a polyurethane (PU) adhesive having a solid content of more than 10% by weight and a viscosity of from 1,000 to 20,000 cps, preferably from 4,000 to 6,000 cps. In this embodiment, the polyurethane (PU) adhesive is a mixture of a polyurethane (PU) paste and a hot melt polyurethane (PU) resin, wherein the polyurethane (PU) paste and the hot melt polyurethane ( The weight ratio of PU) resin is from 4:1 to 1:1. The thermoplastic resin 12 has a melting point in the range of about 110 ° C to 125 ° C.

Referring to FIG. 5, a mesh layer 11 is attached to the thermoplastic resin 12, wherein the mesh layer 11 has a first surface 111 and a second surface 112, and the second surface 112 is opposite to the first surface 11. And the first surface 111 is in contact with the thermoplastic resin 12. In this embodiment, the mesh layer 11 is a woven fabric, which is purchased from Ding Shou Enterprise Co., Ltd., model number TSKN-1023. The mesh layer 11 further has a plurality of through holes 113 extending from the first surface 111 of the mesh layer 11 to the second surface 112 of the mesh layer 11, and the apertures of the through holes 113 are about It is from 1mm to 2mm.

Referring to FIG. 6, the structure obtained by the process described in FIG. 5 is released from the release paper 10, and then placed for a period of time (2 days) to form a laminate 1 in which the thermoplastic resin 12 forms a first One layer 12 is followed. In addition, if necessary, the product can be further The layer 1 is embossed such that the first facing layer 14 of the laminated material 1 has other embossing lines in addition to the surface texture having the release pattern corresponding to the release paper 10. Alternatively, the laminated material 1 may be further hot pressed such that the first facing layer 14 of the laminated material 1 has a three-dimensional texture corresponding to the mesh layer 11.

Referring to Figure 6, there is shown a schematic view of a first embodiment of a laminate of the present invention. The laminate 1 includes a mesh layer 11, a first adhesive layer 12, a first high solid layer 13, and a first surface layer 14. The mesh layer 11 has a first surface 111 and a second surface 112 opposite to the first surface 111. In this embodiment, the mesh layer 11 is a woven fabric, which is purchased from Ding Shou Enterprise Co., Ltd., model number TSKN-1023. The mesh layer 11 further has a plurality of through holes 113 extending from the first surface 111 of the mesh layer 11 to the second surface 112 of the mesh layer 11, and the apertures of the through holes 113 are about It is from 1mm to 2mm.

The first adhesive layer 12 is located on the first surface 111 of the mesh layer 11, and the first adhesive layer 12 is formed of a thermoplastic resin. The thickness of the first adhesive layer 12 is 0.02 mm to 0.2 mm. The thermoplastic resin is a polyurethane (PU) adhesive which is a mixture of a polyurethane (PU) paste and a hot melt polyurethane (PU) resin, wherein the polyurethane (PU) paste and the hot melt polyurethane The weight ratio of the (PU) resin is from 4:1 to 1:1. The solids portion of the polyurethane (PU) adhesive is greater than 10% by weight.

The first high-solid layer 13 is formed on the first adhesive layer 12, and the first high-solid layer 13 is formed by curing a first polymer mixture. The first polymer mixture comprises at least a first polymer resin. . The solid content of the first polymer resin is 70% by weight to 100% by weight, and the material of the first polymer resin is a polyurethane resin. Preferably, the first high solid layer 13 is a non-foamed layer. It is to be noted that the first high solid layer 13 can be omitted.

The first facing layer 14 is located on the first high solid layer 13. It is to be noted that if the first high solid layer 13 is omitted, the first surface layer 14 is located on the first adhesive layer 12. The first surface layer 14 is formed by curing a second polymer mixture, wherein the second polymer mixture The composition comprises a second polymer resin. The solid content of the second polymer resin is from 15% by weight to 60% by weight (that is, the solid portion of the second polymer resin is smaller than the solid portion of the first polymer resin), and the second highest The material of the molecular resin is a polyurethane resin, a water-soluble elastomer resin or a water-dispersed elastomer resin. Preferably, the first facing layer 14 has a surface texture, and the first facing layer 14 is a non-foamed layer.

In the present embodiment, since the first adhesive layer 12 of the laminated material 1 is formed of a thermoplastic resin, the hand feel is softer in use than the conventional laminated material having hot melt adhesive and thus has a hand feeling advantage. According to the test results of the ST-300 leather softness tester, the laminate 1 of the present invention has an index of 2.6, which is higher than that of the conventional laminate (index of 2.1). In other words, the laminate 1 of the present invention has a softness of 10% to 30% softer than that of the conventional laminate.

Referring to Figures 7 through 11, there are shown schematic views of the process steps of the manufacturing method of the second embodiment of the laminated material of the present invention. Referring to Fig. 7, a fourth polymer mixture is formed on a first surface 101 of a release paper 10 by coating. Preferably, the release paper 10 has a release pattern on the first surface 101. In the present embodiment, the release paper 10 of Fig. 7 is the same as the release paper 10 of Fig. 1, however, it can be understood that the release paper 10 of Fig. 7 can also be different from the release paper 10 of Fig. 1. The fourth polymer mixture contains a fourth polymer resin. The fourth polymer resin has a solid content of 15% by weight to 60% by weight, a viscosity of 500 to 10000 cps, preferably 700 to 2500 cps, and the fourth polymer resin is a polyurethane resin and water-soluble elastic material. Body resin or water dispersed elastomer resin. Next, the fourth polymer mixture is dried at a temperature of 50 ° C to 130 ° C for 4 minutes to cure to form a second surface layer 24 . Preferably, the second facing layer 24 has a surface texture corresponding to the release pattern of the release paper 10, and the second facing layer 24 is a non-foamed layer. In the present embodiment, the second facing layer 24 is the same as the first facing layer 14, however, it can be understood that the second facing layer 24 can also be different from the first facing layer 14.

Referring to FIG. 8, a third polymer mixture is formed on the second surface layer 24 by coating, and the third polymer mixture contains at least a third polymer resin. The third high score The solid content of the sub-resin is 70% by weight to 100% by weight, and the viscosity is 4000 to 12000 cps (that is, the solid portion of the third polymer resin is larger than the solid portion of the fourth polymer resin, and the third highest The viscosity of the molecular resin is greater than the viscosity of the third polymer resin, and the material of the third polymer resin is a polyurethane resin. Next, the third polymer mixture is dried at a temperature of 100 ° C to 160 ° C for 5 minutes to cure to form a second high solid layer 23 . Preferably, the second high solid layer 23 is a non-foamed layer. In the present embodiment, the second high-solid layer 23 is the same as the first high-solid layer 13, however, it can be understood that the second high-solid layer 23 can also be different from the first high-solid layer 13. It is to be noted that the second high solid layer 23 can be omitted.

Referring to FIG. 9, a thermoplastic resin 22 is formed on the second high-solid layer 23 by coating. It is to be noted that if the second high-solid layer 23 is omitted, the thermoplastic resin 22 is formed on the second surface layer 24. The thermoplastic resin 22 is a polyurethane (PU) adhesive having a solid content of more than 10% by weight and a viscosity of from 1,000 to 20,000 cps, preferably from 4,000 to 6,000 cps. In this embodiment, the polyurethane (PU) adhesive is a mixture of a polyurethane (PU) paste and a hot melt polyurethane (PU) resin, wherein the polyurethane (PU) paste and the hot melt polyurethane ( The weight ratio of PU) resin is from 4:1 to 1:1. The thermoplastic resin 22 has a melting point in the range of about 110 ° C to 125 ° C.

Referring to FIG. 10, a laminate 1 of FIG. 6 is attached to the thermoplastic resin 22, wherein the second surface 112 of the mesh layer 11 is in contact with the thermoplastic resin 22, and the thermoplastic resin 22 is on the mesh layer. The first via layer 12 is contacted in the through hole 113 of 11.

Referring to Fig. 11, the structure obtained by the process described in Fig. 10 is released from the release paper 10, and then placed in a mature state for a period of time (2 days) to form a laminate 2, wherein the thermoplastic resin 22 forms a first Second, layer 22 is followed. In addition, the laminated material 2 may be embossed if necessary, such that the first facing layer 14 and the second facing layer 24 of the laminated material 2 have a surface having a release pattern corresponding to the release paper 10. The texture has other embossing lines. Alternatively, the laminated material 2 may be further hot pressed so that the first surface layer of the laminated material 2 14 and the second surface layer 24 have a three-dimensional texture corresponding to the mesh layer 11.

Referring to Figure 11, there is shown a schematic view of a second embodiment of a laminate of the present invention. The laminate 2 includes a mesh layer 11, a first back layer 12, a first high solid layer 13, a first surface layer 14, a second back layer 22, a second high solid layer 23, and a first layer. Two-sided layer 24. The mesh layer 11, the first adhesive layer 12, the first high solid layer 13 and the first surface layer 14 and the mesh layer 11, the first adhesive layer 12, and the first high solid layer of FIG. 13 is the same as the first surface layer 14.

The second adhesive layer 22 is on the second surface 112 of the mesh layer 11, and the second adhesive layer 22 is formed of a thermoplastic resin. The thickness of the second adhesive layer 22 is 0.02 mm to 0.2 mm. The thermoplastic resin is a polyurethane (PU) adhesive which is a mixture of a polyurethane (PU) paste and a hot melt polyurethane (PU) resin, wherein the polyurethane (PU) paste and the hot melt polyurethane The weight ratio of the (PU) resin is from 4:1 to 1:1. The solids portion of the polyurethane (PU) adhesive is greater than 10% by weight. In the present embodiment, the second adhesive layer 22 is the same as the first adhesive layer 12, however, it can be understood that the second adhesive layer 22 can also be different from the first adhesive layer 12. The first adhesive layer 12 and the second adhesive layer 22 are in contact with each other in the through hole 113 of the mesh layer 11 .

The second high-solid layer 23 is formed on the second adhesive layer 22, and the second high-solid layer 23 is formed by curing a third polymer mixture, and the third polymer mixture comprises at least a third polymer resin. . The solid content of the third polymer resin is 70% by weight to 100% by weight, and the material of the third polymer resin is a urethane resin. Preferably, the second high solid layer 23 is a non-foamed layer. In the present embodiment, the second high-solid layer 23 is the same as the first high-solid layer 13, however, it can be understood that the second high-solid layer 23 can also be different from the first high-solid layer 13. It is to be noted that the second high solid layer 23 can be omitted.

The second surface layer 24 is located on the second high solid layer 23. It is to be noted that if the second high solid layer 23 is omitted, the second surface layer 24 is located on the second adhesive layer 22. The second surface layer 24 is formed by curing a fourth polymer mixture, wherein the fourth polymer mixture comprises a fourth polymer resin. The solid content of the fourth polymer resin is 15 weights 5% by weight to 60% by weight (that is, the solid portion of the fourth polymer resin is less than the solid portion of the third polymer resin), and the material of the fourth polymer resin is polyurethane resin, water-soluble elastic Body resin or water dispersed elastomer resin. Preferably, the second facing layer 24 has a surface texture and the second facing layer 24 is a non-foaming layer.

In the present embodiment, since the first adhesive layer 12 and the second adhesive layer 22 of the laminated material 2 are formed of a thermoplastic resin, the hand feel is softer than that of a conventional laminate having a hot melt adhesive. Therefore, it has a handy advantage.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the scope of the present invention. The scope of the invention should be as set forth in the appended claims.

1‧‧‧First embodiment of the laminated material of the present invention

11‧‧‧Mesh layer

12‧‧‧ thermoplastic resin / first adhesive layer

13‧‧‧First high solid layer

14‧‧‧ first layer

111‧‧‧ First surface of the mesh layer

112‧‧‧Second surface of the mesh layer

113‧‧‧through holes

Claims (10)

A laminate material comprising: a mesh layer having a first surface and a second surface, the second surface being opposite to the first surface, wherein the mesh layer further has a plurality of through holes, the through holes a first surface of the mesh layer penetrates to the second surface of the mesh layer; a first adhesive layer is disposed on the first surface of the mesh layer, the first adhesive layer is a polyurethane (PU) adhesive Formed; and a first facing layer on the first backing layer. The laminate of claim 1, wherein the through holes have a pore size of about 1 mm to 2 mm. The laminate of claim 1, wherein the polyurethane (PU) adhesive is a mixture of a polyurethane (PU) paste and a hot melt polyurethane (PU) resin, wherein the polyurethane (PU) paste and the hot melt The weight ratio of the polyurethane (PU) resin is from 4:1 to 1:1, wherein the solid portion of the polyurethane (PU) adhesive is more than 10% by weight. The laminate of claim 1 further comprising a first high solid layer between the first adhesive layer and the first surface layer, the first high solid layer being formed by a first polymer mixture, The first polymer mixture comprises at least a first polymer resin; the first surface layer is formed by a second polymer mixture, and the second polymer mixture comprises at least a second polymer resin; the first polymer The solid content of the resin is 70% by weight to 100% by weight, and the first polymer resin is a polyurethane resin, and the solid content of the second polymer resin is 15% by weight to 60% by weight, and the second highest The molecular resin is a polyurethane resin, a water-soluble elastomer resin or a water-dispersed elastomer resin. The laminate of claim 1, wherein the first adhesive layer and the first surface layer are formed by coating. The laminated material of claim 1 further includes: a second adhesive layer on the second surface of the mesh layer, the second adhesive layer being formed of a polyurethane (PU) adhesive; and a second high solid layer on the second adhesive layer, the second adhesive layer The second high solid layer is formed by a third polymer mixture, the third polymer mixture comprising at least a third polymer resin; and a second surface layer on the second high solid layer, the second The surface layer is formed by a fourth polymer mixture, and the fourth polymer mixture comprises at least a fourth polymer resin, and the solid portion of the fourth polymer resin is smaller than the solid portion of the third polymer resin. The laminate of claim 6, wherein the first adhesive layer and the second adhesive layer are in contact with each other in the through-hole of the mesh layer. The laminate of claim 6, wherein the polyurethane (PU) adhesive is a mixture of a polyurethane (PU) paste and a hot melt polyurethane (PU) resin, wherein the polyurethane (PU) paste and the hot melt The weight ratio of the polyurethane (PU) resin is from 4:1 to 1:1, wherein the solid portion of the polyurethane (PU) adhesive is more than 10% by weight. The laminate of claim 6, further comprising a second high-solid layer between the second adhesive layer and the second surface layer, wherein the second high-solid layer is formed by a third polymer mixture, The third polymer mixture comprises at least a third polymer resin; the second surface layer is formed by a fourth polymer mixture, and the fourth polymer mixture comprises at least a fourth polymer resin; the third polymer layer The solid content of the resin is 70% by weight to 100% by weight, and the third polymer resin is a polyurethane resin, and the solid content of the fourth polymer resin is 15% by weight to 60% by weight, and the fourth highest The molecular resin is a polyurethane resin, a water-soluble elastomer resin or a water-dispersed elastomer resin. The laminate of claim 6, wherein the second adhesive layer and the second surface layer are formed by coating.