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Cloth for PU synthetic leather and preparation method thereof

A technology for synthetic leather and cloth materials, which can be used in pharmaceutical formulations, coatings, textiles and papermaking, etc. It can solve the problems of synthetic leather such as poor resilience and hand feeling, and achieve a full hand feeling effect

Inactive Publication Date: 2016-04-13
HESHAN XINKEDA ENTERPRISE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor resilience of the existing synthetic leather, the present invention proposes a cloth material for PU synthetic leather. The PU slurry of the cloth material penetrates into the fluff layer to form a plump filling similar to the effect of genuine leather. The soft cloth wool gap is filled, and through the principle of wet process, the filling layer has a large number of air holes

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

[0023] A cloth material for PU synthetic leather. The cloth material includes a yarn layer and a raised layer, and the thickness of the raised layer accounts for 60% of the thickness of the cloth material. The fluff layer is coated with PU slurry, calculated in parts by weight, the PU slurry comprises the following components: 80 parts of wet-process polyurethane resin, 100 parts of dimethylformamide, 10 parts of calcium carbonate, 12 parts polyether-modified polydimethylsiloxane. Wherein, the wet-process polyurethane resin is a solvent-based polyurethane resin with a molecular weight of 120,000; the fineness of calcium carbonate is 1000 mesh.

[0024] The preparation method of PU slurry: Weigh 80 parts of wet-process polyurethane resin, 100 parts of dimethylformamide, 10 parts of calcium carbonate and 12 parts of polyether-modified polydimethylsiloxane and stir, the viscosity At 4000±200CPS.

[0025] The preparation method of the cloth material that PU synthetic leather is ...

Embodiment 2

[0028] A cloth material for PU synthetic leather. The cloth material includes a yarn layer and a raised layer, and the thickness of the raised layer accounts for 55% of the thickness of the cloth material. The fluff layer is coated with PU slurry, calculated in parts by weight, the PU slurry comprises the following components: 100 parts of wet-process polyurethane resin, 70 parts of dimethylformamide, 35 parts of lignocellulose, 6 parts Parts of polyether modified polydimethylsiloxane. Wherein, the wet-process polyurethane resin is a solvent-based polyurethane resin with a molecular weight of 200,000; the fineness of the lignocellulose is 1200 mesh.

[0029] The preparation method of PU slurry: Weigh 100 parts of wet-process polyurethane resin, 70 parts of dimethylformamide, 35 parts of lignocellulose and 6 parts of polyether-modified polydimethylsiloxane to stir, The viscosity is 4000±200CPS.

[0030] The preparation method of the cloth material that PU synthetic leather is...

Embodiment 3

[0033] A cloth material for PU synthetic leather. The cloth material includes a yarn layer and a raised layer, and the thickness of the raised layer accounts for 55% of the thickness of the cloth material. The fluff layer is coated with PU slurry, calculated in parts by weight, the PU slurry includes the following components: 90 parts of wet-process polyurethane resin, 80 parts of ethyl acetate, 20 parts of diatomaceous earth and 6 parts of Alkyl modified organosiloxane. Wherein, the wet-process polyurethane resin is a solvent-based polyurethane resin with a molecular weight of 400,000; the fineness of diatomite is 1200 mesh.

[0034] The preparation method of PU slurry: Weigh 90 parts of wet-process polyurethane resin, 80 parts of ethyl acetate, 20 parts of diatomaceous earth and 6 parts of alkyl-modified organosiloxane and stir, the viscosity is 4000±200CPS .

[0035] The preparation method of the cloth material that PU synthetic leather is used comprises the following ste...

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 provides cloth for PU synthetic leather and a preparation method thereof. The cloth comprises a yarn layer and a fluffing layer, wherein the fluffing layer is coated with PU slurry; the PU slurry is prepared from, by weight, 80-100 parts of wet polyurethane resin, 70-100 parts of organic solvent, 10-35 parts of filler and 6-12 parts of penetrant. According to the preparation method, the fluffing layer of the cloth is directly coated with the PU slurry, the cloth is put into a solidification tank for solidification and then washed, water in the washed cloth is squeezed through a pressing wheel, and then the cloth is dried, cooled and rolled. According to the cloth, the PU slurry permeates into the fluffing layer, the fluffing layer is filled fully like leather, original soft cloth fluff gaps are filled up, and the filling layer is provided with a large number of air holes according to the principle of the wet process.

Description

technical field [0001] The invention belongs to the technical field of PU synthetic leather, and in particular relates to a cloth material for PU synthetic leather and a preparation method thereof. Background technique [0002] Polyurethane synthetic leather generally consists of a three-layer structure of polyurethane dry-process surface layer, polyurethane wet-process middle layer and cloth material. Although the surface texture of ordinary synthetic leather is similar to that of real leather, it does not feel as plump, strong, and somewhat resilient as real leather. The traditional PU synthetic leather is like pinching cotton citrus, which is not full and full. In the traditional synthetic leather production process, the cloth material is squeezed and washed, then ironed and dried on a cloth ironing wheel at 160-180 ° C, and the humidity of the cloth material is controlled, and then coated with PU slurry on the cloth, and enters the coagulation tank to solidify , DMF (d...

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): D06N3/00D06N3/14C09D175/04C09D7/12
CPCD06N3/004C08K3/26C08K3/34C08K2003/265C09D7/61C09D7/65C09D175/04D06N3/0088D06N3/0097D06N3/14D06N2209/123D06N2211/18
Inventor 任志军任志营冯海钊
Owner HESHAN XINKEDA ENTERPRISE CO LTD
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