Knitted skin-friendly lining covered with breathable pinhole film and manufacturing method of knitted skin-friendly lining

Abstract

The invention relates to a comfortable and skin-friendly knitted skin-friendly lining and a manufacturing method thereof, the skin-friendly lining is of a double-sided composite structure and is formed by bonding and drying, one side of the structure is low-gram-weight warp-knitted (or weft-knitted) knitted fabric with the skin-friendly characteristic, and the other side of the structure is a punched polyurethane film made of a polyurethane material. The invention relates to a punched polyurethane film, which is formed by punching holes on a polyurethane film by using fine needles arranged in a matrix. The punched polyurethane film with the appropriate hole diameter and hole distance has good stretching performance, contractibility and attachment performance, the high-elasticity characteristic of the knitted fabric is not affected at all, the problems in the prior art are solved, excellent air permeability is guaranteed, and the wearing experience feeling is good.

Description

Technical Field

[0001] The invention relates to a knitted fabric and a manufacturing method thereof, and in particular to a knitted lining fabric covered with a breathable pinhole elastic film and having comfortable skin-friendly properties and a manufacturing method thereof. Background Art

[0002] Knitted skin-friendly linings are increasingly favored by consumers for their comfortable skin-friendliness and high elasticity. They are widely used in underwear, shaping clothes, yoga clothes, and the inner layer or lining of filling clothes (down clothing, cotton clothing, etc.). However, skin-friendly knitted fabrics have their own drawbacks that cannot be overcome, such as: 1. Thick skin-friendly fabrics have high material costs and a limited range of use; 2. The thin skin-friendly lining fabric is too soft and not firm, and is easy to be drawn; 3. Knitted fabrics have no down-proof properties and cannot be used for down-filled clothing.

[0003] In order to solve the above defects of knitted skin-friendly lining fabrics, various types of coated fabrics are currently available on the market. Although some of the above defects of knitted skin-friendly lining fabrics have been overcome to a certain extent, a series of new problems have emerged at the same time.

[0004] Knitted linings are popular among consumers, one of the reasons being their high elasticity. However, a large portion of knitted fabrics have a serious lack of elasticity or even completely lose it due to the application of a non-elastic film. Secondly, even if some skin-friendly lining fabrics use a high-elastic film that is compatible with knitted skin-friendly linings, since the film is made of a highly airtight polyester material that is melted at high temperature, or made through a cast process, or a stretching process, the use of a high-elastic film solves the problem of the knitted skin-friendly lining fabric's own defects, but at the expense of the fabric's own breathability. Not only is the wearing experience poor, but long-term wearing will provide conditions for the growth of harmful microorganisms, and is not very practical.

[0005] Therefore, there is an urgent need for a comfortable and breathable technical solution that can overcome the defects of knitted skin-friendly lining fabrics. Summary of the invention

[0006] In view of the technical problems existing in the prior art, the present invention aims to provide a knitted skin-friendly lining fabric which can overcome the defects of the knitted skin-friendly lining fabric itself, is covered with a breathable pinhole elastic film, has comfortable skin-friendly properties, and a manufacturing method thereof.

[0007] Specifically, according to one aspect of the present invention, there is provided a method for producing a knitted skin-friendly lining covered with a breathable pinhole elastic film and having comfortable skin-friendly properties, characterized in that a polyurethane film for application is firstly punched to form a matrix-arranged punched polyurethane film, which is then unwound by a punched polyurethane film unwinding roller and a skin-friendly lining unwinding roller, and then an adhesive coating groove is used to cover the punched polyurethane film or the knitted skin-friendly lining with an environmentally friendly adhesive, and the two are then pressed and applied, and then dried at high temperature by a high-temperature drying roller, and finally rolled up by a finished product winding roller into a finished product.

[0008] Preferably, the equipment used in the method for making the knitted skin-friendly lining mainly includes a punched polyurethane film unwinding roller for unwinding the punched polyurethane film, a skin-friendly lining unwinding roller for unwinding the skin-friendly lining, an adhesive coating groove for accommodating the adhesive and applying the adhesive between the skin-friendly lining and the punched polyurethane film, a high-temperature drying roller for drying the adhesive, and a finished product winding roller for winding the finished lining fabric.

[0009] Preferably, the perforated polyurethane film is made by punching holes in the polyurethane film with fine needles arranged in a matrix, the hole diameter is 0.2-0.5 mm, and the hole spacing is 0.8-1.2 mm.

[0010] Preferably, the adhesive used is a thermal adhesive material, which makes the upper and lower laminating layers inseparable after cooling.

[0011] Preferably, a high temperature drying roller is used for drying, and the temperature of the high temperature drying roller is controlled between 150°C and 180°C.

[0012] Preferably, the unwinding speeds of the knitted lining unwinding roller and the punched polyurethane film unwinding roller used for the knitted skin-friendly lining are in a unwinding ratio of 1:1.

[0013] According to another aspect of the present invention, there is provided a knitted skin-friendly lining covered with a breathable pinhole elastic film having comfortable skin-friendly properties produced by the above production method, wherein the skin-friendly lining is a double-sided composite structure formed by bonding and drying, wherein one side of the structure is a warp knitted (or weft knitted) knitted fabric having skin-friendly properties, and the other side is a polyurethane perforated polyurethane film, and the knitted lining is a low-weight warp knitted (or weft knitted) knitted fabric.

[0014] Preferably, the perforated polyurethane film is made by punching holes in the polyurethane film with fine needles arranged in a matrix, the hole diameter is 0.2-0.5 mm, and the hole spacing is 0.8-1.2 mm.

[0015] Preferably, the composite structure is an adhesive structure, characterized in that the adhesive used is an environmentally friendly, odorless, and harmless to human health thermal adhesive material, which makes the upper and lower bonding layers inseparable after cooling.

[0016] Preferably, a high temperature drying roller is used for drying, and the temperature of the high temperature drying roller should be controlled between 150° C. and 180° C. to ensure that the adhesive is melted while ensuring that the physical properties of the knitted lining and the polyurethane film are not changed.

[0017] Preferably, the unwinding speeds of the knitted lining unwinding roller and the punched polyurethane film unwinding roller used for the knitted skin-friendly lining are in a unwinding ratio of 1:1.

[0018] According to the present invention, the skin-friendly lining is a double-sided composite structure, one side is the fabric body, and the other side is a polyurethane perforated film. The fabric body is a warp knitted structure or a weft knitted structure with skin-friendly properties. One side of the fabric body is a plain cloth structure and forms a skin-friendly surface, and the other side is covered with the polyurethane perforated film. The other side of the polyurethane perforated film forms the clothing surface.

[0019] According to the above invention, the skin-friendly lining can also be formed into a multi-faceted composite structure, which is formed by adhering the other side of the polyurethane perforated film to the clothing surface.

[0020] According to the above invention, the polyurethane film is a polyester material film with good ductility and shrinkage. Its good stretchability and shrinkage have good adaptability to the elasticity of knitted fabrics and will not affect the high elasticity of the knitted fabrics themselves.

[0021] Indeed, as mentioned above, polyurethane film, which is made from polyester material by warm melting, cast film process or stretching process, has no breathability like other polyester material films. Fabrics directly applied with polyurethane film without any processing will lose their proper breathability.

[0022] According to the present invention, the fabric body is a white surface cloth, and the warp knitted or weft knitted yarn is a black yarn.

[0023] According to the present invention, the fabric body is a black surface cloth, and the warp knitted or weft knitted yarn is a white yarn.

[0024] According to the present invention, the perforated polyurethane film is a black film.

[0025] According to the present invention, the perforated polyurethane film is a dyed film.

[0026] According to the present invention, the grey cloth of the fabric body and the perforated polyurethane film are of the same color.

[0027] According to the present invention, the grey cloth of the fabric body and the perforated polyurethane film are dyed in different colors respectively.

[0028] According to the present invention, a high temperature drying roller is used for drying, and the temperature of the high temperature drying roller is controlled between 150° C. and 180° C. to ensure that the adhesive is melted while ensuring that the physical properties of the knitted lining and the polyurethane film are not changed.

[0029] According to the present invention, unwinding is performed using an unwinding roller, and the unwinding speed ratio of the knitted lining unwinding roller used for the knitted skin-friendly lining and the unwinding speed of the punched polyurethane film unwinding roller is adapted according to 1:1, ensuring that the double-sided unwinding tension of the knitted lining is 0 tension.

[0030] In order to ensure the breathability of the skin-friendly lining after being coated with the polyurethane film, the present invention also punches the polyurethane film used for pasting, and then covers the film or knitted fabric with an environmentally friendly adhesive. The two are then pressed and pasted and then dried at high temperature. In this way, the skin-friendly lining can be produced with a relatively simple process.

[0031] The effect of the present invention is that the perforated polyurethane film with suitable pore diameter and pore spacing has good stretchability, shrinkage and adherence, does not affect the high elasticity of the knitted fabric itself, overcomes the problems of the prior art, ensures excellent air permeability, and provides a good wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of a punched polyurethane film of a knitted skin-friendly lining covered with a breathable pinhole membrane according to a specific embodiment of the present invention.

[0033] Figure 2 It is a schematic diagram showing the fabric body of a knitted skin-friendly lining covered with a breathable pinhole membrane according to a specific embodiment of the present invention.

[0034] Figure 3 It is a schematic diagram showing the manufacturing equipment of the knitted skin-friendly lining covered with a breathable pinhole membrane according to a specific embodiment of the present invention.

[0035] Description of Reference Numerals 1- Punching polyurethane film unwinding roller 2-Skin-friendly lining unwinding roller 3- Adhesive coating tank 4-High temperature drying roller 5- Finished product winding roller DETAILED DESCRIPTION

[0036] The following is a clearer and more detailed description of the technical content of the present invention in combination with specific implementation modes with reference to the accompanying drawings. The description is exemplary, and the present invention is not limited to the specific implementation modes.

[0037] Figure 1 To show a schematic diagram of a punched polyurethane film of a knitted skin-friendly lining of the present invention, Figure 2The knitted skin-friendly lining fabric of the present invention is formed by laminating the perforated polyurethane film and the knitted skin-friendly lining fabric body.

[0038] like Figure 1 , 2 As shown, the knitted skin-friendly lining covered with a breathable pinhole membrane of the present invention is a double-sided composite structure, one side is a fabric body, and the other side is a polyurethane perforated film, the fabric body is a warp knitted structure or a weft knitted structure with skin-friendly properties, one side of the fabric body is a plain cloth structure and forms a skin-friendly surface, and the other side is covered with the polyurethane perforated film, and the other side of the polyurethane perforated film forms the clothing surface.

[0039] In a preferred embodiment of the present invention, the skin-friendly lining can also be formed into a multi-faceted composite structure, which is formed by the other side of the polyurethane perforated film being attached to the clothing surface. For example, a three-faceted composite structure is formed by the other side of the polyurethane perforated film being attached to the clothing surface, or a four-faceted composite structure can be formed, such as by stacking polyester fabric as a surface fabric on the outer layer to further form a four-faceted composite structure, and so on, more multi-faceted composite structures can be formed by bonding.

[0040] In the present invention, the polyurethane film is a polyester film with good ductility and shrinkage. Its good stretchability and shrinkage have good adhesion to the elasticity of knitted fabrics and will not affect the high elasticity of the knitted fabrics themselves. In one embodiment, the polyurethane film is formed by coating a thermoplastic polyurethane compound on a release paper and drying it to form a polyurethane film, and then tearing off the release paper. In another embodiment, it can also be formed by directly coating an adhesive on the fabric body of the knitted skin-friendly lining to form a polyurethane film layer.

[0041] As a polyurethane film made from polyester characteristic materials by warm melting, cast film process, or stretching process, it has no breathability like other polyester material films. Fabrics directly applied with polyurethane film without any processing will lose the breathability of the fabric.

[0042] According to the above invention, the double-sided composite structure of the skin-friendly lining is formed by bonding and drying. One side of the structure is a warp knitted (or weft knitted) knitted fabric with skin-friendly properties, and the other side is a perforated polyurethane film made of polyurethane material. The knitted lining is a low-weight warp knitted (or weft knitted) knitted fabric.

[0043] According to the present invention, the punched holes of the perforated polyurethane film are punched in a matrix by using fine needles arranged in a matrix to punch holes in the polyurethane film. The diameter of each pinhole is 0.2-0.5 mm, and the distance between adjacent holes is 0.8-1.2 mm.

[0044] According to the present invention, the double-sided composite structures are bonded together using an adhesive, and the adhesive used for bonding is an environmentally friendly, odorless, and non-harmful to human health thermal adhesive material, which makes the upper and lower layers bonded inseparable after cooling.

[0045] According to the present invention, the fabric body is a white grey cloth, and the warp knitted or weft knitted yarn is a black yarn. Alternatively, the fabric body is a black grey cloth, and the warp knitted or weft knitted yarn is a white yarn. The perforated polyurethane film is a black film. The perforated polyurethane film is a dyed film. The grey cloth of the fabric body and the perforated polyurethane film are the same color. The grey cloth of the fabric body and the perforated polyurethane film are dyed in different colors. Figure 1 In the figure, the black film is shown, and the formed ventilating pinholes are evenly arranged in a matrix on the black film. Figure 2 In the figure, a black fabric body surface cloth is shown, which is woven by warp knitting or weft knitting.

[0046] In order to ensure the breathability of the skin-friendly lining after being coated with the polyurethane film, the present invention also punches the polyurethane film used for pasting, and then covers the film or knitted fabric with an environmentally friendly adhesive. The two are then pressed and pasted and then dried at high temperature. In this way, the skin-friendly lining can be produced with a relatively simple process.

[0047] Figure 3 Schematic diagram of the manufacturing equipment of the knitted skin-friendly lining covered with a breathable pinhole membrane of the present invention. Figure 3 As shown, the manufacturing equipment of the knitted skin-friendly lining covered with a breathable pinhole film of the present invention mainly includes a perforated polyurethane film unwinding roller 1 for unwinding the perforated polyurethane film, a skin-friendly lining unwinding roller 2 for unwinding the fabric body of the skin-friendly lining, an adhesive coating tank 3 for containing the adhesive and applying the adhesive between the fabric body and the perforated polyurethane film, a high-temperature drying roller 4 for drying the adhesive, and a finished product winding roller 5 for winding the finished lining fabric. In a specific embodiment, the polyurethane film for application is first punched to form a perforated polyurethane film, which is unwound by the perforated polyurethane film unwinding roller 1 and the skin-friendly lining unwinding roller 2, and then the adhesive coating tank 3 is used to cover the film or knitted fabric with an environmentally friendly adhesive, and the two are then pressed and applied, and then dried at high temperature by the high-temperature drying roller 4, and finally rolled up by the finished product winding roller 5 into a finished product.

[0048] According to the present invention, the punched holes of the perforated polyurethane film are punched in a matrix by using fine needles arranged in a matrix to punch holes in the polyurethane film. The diameter of each pinhole is 0.2-0.5 mm, and the distance between adjacent holes is 0.8-1.2 mm.

[0049] According to the present invention, the double-sided composite structures are bonded together using an adhesive, and the adhesive used for bonding is an environmentally friendly, odorless, and non-harmful to human health thermal adhesive material, which makes the upper and lower layers bonded inseparable after cooling.

[0050] According to the present invention, a high temperature drying roller is used for drying, and the temperature of the high temperature drying roller is controlled between 150° C. and 180° C. to ensure that the adhesive is melted while ensuring that the physical properties of the knitted lining and the polyurethane film are not changed.

[0051] According to the present invention, unwinding is performed using an unwinding roller, and the unwinding speed ratio of the knitted lining unwinding roller used for the knitted skin-friendly lining and the unwinding speed of the punched polyurethane film unwinding roller is adapted according to 1:1, ensuring that the double-sided unwinding tension of the knitted lining is 0 tension.

[0052] The present invention has been described in detail above. Those skilled in the art will appreciate that various modifications and changes may be made. As long as they do not depart from the purpose and spirit of the present invention, these modifications and changes should fall within the scope of protection of the present invention. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A method for producing a knitted skin-friendly lining covered with a breathable pinhole elastic film and having comfortable skin-friendly properties, characterized in that: The polyurethane film to be applied is first punched to form a matrix-arranged punched polyurethane film, which is then unwound by a punched polyurethane film unwinding roller (1) and a skin-friendly lining unwinding roller (2). Then, an adhesive coating tank (3) is used to coat the film or knitted fabric with adhesive. The two are then pressed and applied, and then dried at high temperature by a high-temperature drying roller (4). Finally, the finished product is rolled up by a finished product winding roller (5) to form a finished product.

2. The method for making a knitted skin-friendly lining according to claim 1, characterized in that: The punched polyurethane film is made by punching holes in the polyurethane film with fine needles arranged in a matrix, the hole diameter is 0.2-0.5mm, and the hole distance is 0.8-1.2mm.

3. The method for making a knitted skin-friendly lining according to claim 1, characterized in that: The adhesive used is a thermal adhesive material.

4. The method for making a knitted skin-friendly lining according to claim 1, characterized in that: The drying is performed using a high-temperature drying roller (4), wherein the temperature of the high-temperature drying roller (4) is controlled between 150° C. and 180° C.

5. The method for making a knitted skin-friendly lining according to claim 1, characterized in that: The unwinding speeds of the knitted lining unwinding roller (2) and the punched polyurethane film unwinding roller (1) used for the knitted skin-friendly lining are in a unwinding ratio of 1:

1.

6. The method for making a knitted skin-friendly lining according to claim 1, characterized in that: The equipment used in the method for making the knitted skin-friendly lining includes a punching polyurethane film unwinding roller for unwinding the punching polyurethane film, a skin-friendly lining unwinding roller for unwinding the skin-friendly lining, an adhesive coating tank for accommodating the adhesive and applying the adhesive between the skin-friendly lining and the punching polyurethane film, a high-temperature drying roller for drying the adhesive, and a finished product winding roller for winding the finished lining fabric.

7. A knitted skin-friendly lining covered with a breathable pinhole elastic film and having comfortable skin-friendly properties made by the manufacturing method described in any one of claims 1 to 6 above, wherein the skin-friendly lining is a double-sided composite structure formed by bonding and drying, one side of the structure is a warp knitted or weft knitted fabric with skin-friendly properties, and the other side is a polyurethane perforated polyurethane film, and the knitted lining is a low-weight warp knitted or weft knitted fabric.

8. The knitted skin-friendly lining as claimed in claim 7, characterized in that: The punched polyurethane film is made by punching holes in the polyurethane film with fine needles arranged in a matrix, the hole diameter is 0.2-0.5mm, and the hole distance is 0.8-1.2mm.

9. The knitted skin-friendly lining as claimed in claim 7, characterized in that: Use a high temperature drying roller for drying, and the temperature of the high temperature drying roller should be controlled between 150°C and 180°C.

10. The skin-friendly knitted lining as claimed in claim 7, characterized in that: The unwinding speeds of the knitted lining unwinding roller and the punched polyurethane film unwinding roller used for the knitted skin-friendly lining are in a unwinding ratio of 1:1.

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