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Polyurethane coated fabric and preparation method thereof

A polyurethane and polyurethane layer technology, applied in chemical instruments and methods, improved hand-feeling fibers, lamination, etc., can solve the problems of poor air permeability, insufficient fastness, and large amount of glue, achieve soft hand feel, improve bulkiness, avoid Effects of Environmental Pollution

Inactive Publication Date: 2017-09-22
高密荣晟复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous improvement of science and technology, people's living standards are also continuously improved, resulting in higher and higher requirements for the comfort of fabrics. Traditional composite fabrics have shortcomings such as poor air permeability, poor stiffness, and poor softness, which can no longer meet the requirements. Contemporary people's demand for the comfort of fabrics. At the same time, at this stage, fabric composite processing factories are constantly rising, and competition in the industry is becoming more and more fierce. Therefore, it is imperative to improve the functionality and comfort of fabrics.
[0003] In the prior art, composite fabrics are usually compounded with water glue or oil glue or hot melt glue. Water glue compound has disadvantages such as large amount of glue and bad hand feeling, poor air permeability, or less glue amount and insufficient fastness; Adhesive lamination has disadvantages such as odor, insufficient thickness, and non-environmental protection; hot-melt adhesive lamination is only suitable for certain specific fabrics, and there are great limitations in the choice of fabrics
Due to the constraints of their own conditions, these composite technologies can no longer meet people's requirements for high comfort, and the fabrics laminated by the existing technologies are easily deformed after repeated washing and disinfection, and they have a single function The effect will also be reduced, and it is an industry problem to find a composite process that can have multiple functions and is environmentally friendly.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A polyurethane coated fabric, comprising a first cloth layer, a second cloth layer and a polyurethane layer arranged between the first cloth layer and the second cloth layer, the thickness of the first cloth layer is 0.2mm, so The thickness range of the second fabric layer is 0.2 mm, and the thickness range of the polyurethane layer is 3 mm.

[0020] The high-density polyurethane is made of the following raw materials in parts by weight: 100 parts of polyether polyol, 10 parts of toluene diisocyanate, 1.0 part of catalyst, 0.3 part of foam stabilizer, and 0.5 part of foaming agent. Add the above-mentioned raw materials into the reactor according to the weight part, mix and stir evenly at a high speed, the reaction temperature is 70°C, the reaction time is 10min, and then poured into the mold to foam and solidify to obtain a density of 60kg / m 3 of high-density polyurethane.

[0021] Spread the first fabric layer flatly, heat the polyurethane layer at high temperature to...

Embodiment 2

[0023] A polyurethane coated fabric, comprising a first cloth layer, a second cloth layer and a polyurethane layer arranged between the first cloth layer and the second cloth layer, the thickness of the first cloth layer is 0.6mm, so The thickness of the second cloth layer is 0.6mm, and the thickness of the polyurethane layer is 1mm.

[0024] The high-density polyurethane is made of the following raw materials in parts by weight: 100 parts of polyether polyol, 20 parts of toluene diisocyanate, 1.5 parts of catalyst, 0.6 parts of foam stabilizer, and 3.0 parts of foaming agent. Add the above-mentioned raw materials into the reactor according to parts by weight, mix them, and stir them evenly at high speed. The reaction temperature is 70°C, the reaction time is 15 minutes, and then poured into the mold to foam and solidify to obtain a density of 300kg / m 3 of high-density polyurethane.

[0025] Spread the first fabric layer flatly, heat the polyurethane layer at high temperature...

Embodiment 3

[0027] A polyurethane coated fabric, comprising a first cloth layer, a second cloth layer and a polyurethane layer arranged between the first cloth layer and the second cloth layer, the thickness of the first cloth layer is 0.3mm, so The thickness of the second fabric layer is 0.4mm, and the thickness of the polyurethane layer is 2mm.

[0028] The high-density polyurethane is made of the following raw materials in parts by weight: 100 parts of polyether polyol, 15 parts of toluene diisocyanate, 1.2 parts of catalyst, 0.5 parts of foam stabilizer, and 2.0 parts of foaming agent. Add the above raw materials into the reactor according to the weight part, mix and stir evenly, the reaction temperature is 70°C, the reaction time is 10min, and then poured into the mold to foam and solidify to obtain a density of 200kg / m 3 of high-density polyurethane.

[0029] Spread the first fabric layer flatly, heat the polyurethane layer at high temperature to produce stickiness, scrape the poly...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a polyurethane coated fabric and a preparation method thereof, and belongs to the technical field of composite fabrics. The composite fabric comprises a first cloth layer, a second cloth layer and a polyurethane layer arranged between the first cloth layer and the second cloth layer, wherein the polyurethane layer produces adhesion through high temperature ironing so as to integrally adhere the first cloth layer and the second cloth layer, and the polyurethane layer is high density polyurethane having a density of 40-400 kg / m<3>. According to the present invention, the fabric and the polyurethane elastomer are integrally adhered through high temperature coating so as to obtain the coated fabric, and the obtained fabric has advantages of good hand-feeling, fluffiness, good gas permeation, good weathering resistance, good durability, high elasticity, adjustable thickness, no deformation after compression, memory function, and the like.

Description

technical field [0001] The invention relates to the technical field of composite fabrics, in particular to a polyurethane coated fabric and a preparation method thereof. Background technique [0002] Composite fabric is a new type of material formed by bonding one or more layers of textile materials, non-woven materials and other functional materials. It is initially suitable for shoes, hats, toys, sporting goods, outdoor products, carpets, cars Interior fabrics, medical service equipment and other fields. With the continuous improvement of science and technology, people's living standards are also continuously improved, resulting in higher and higher requirements for the comfort of fabrics. Traditional composite fabrics have shortcomings such as poor air permeability, poor stiffness, and poor softness, which can no longer meet the requirements. Contemporary people's demand for the comfort of fabrics. At the same time, at this stage, fabric composite processing factories ar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M17/10B32B7/12B32B5/26B32B37/06B32B37/10B32B37/12C09J175/08C08G18/76C08G18/48
CPCD06M17/10B32B5/26B32B7/12B32B37/06B32B37/10B32B37/1207B32B37/1284B32B2037/1215B32B2307/51C08G18/48C08G18/7614C09J175/08D06M2200/50
Inventor 王光玉
Owner 高密荣晟复合材料有限公司
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