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Artificial leather suitable for low-pressure injection molding and preparation method thereof

A low-pressure injection molding and artificial leather technology, which is applied in the direction of textiles and papermaking, can solve the problems of broken sharp corners, shiny sharp corners, high complexity, etc., and achieve the effect of smooth surface, clear texture and uniform texture

Inactive Publication Date: 2018-06-15
广西鑫深科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an artificial leather suitable for low-pressure injection molding and a preparation method thereof, which can solve the problems of wrinkling, material shortage, Issues with shrinkage, shiny corners, and even broken corners

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1——be applicable to the artificial leather of low-pressure injection molding and preparation method thereof

[0022] It includes a base fabric layer, an adhesive layer, a foam layer, a dense layer and a surface treatment layer; wherein, the base layer is made of weft-knitted double-sided knitted fabric;

[0023] The dense layer is made of the following raw materials in parts by weight: 100 parts of polyvinyl chloride paste resin powder, 60 parts of plasticizer, 3 parts of heat stabilizer, and 5 parts of color paste;

[0024] The foam layer is made of the following raw materials in parts by weight: 100 parts of polyvinyl chloride paste resin powder, 60 parts of plasticizer, 3 parts of heat stabilizer, and 4 parts of color paste;

[0025] The surface treatment layer is made of the following raw materials in parts by weight: 70 parts of water-based polyurethane finishing agent of water-based polycarbonate polyurethane, 20 parts of aliphatic polyurethane, 6 parts...

Embodiment 2

[0032] Embodiment 2——be applicable to the artificial leather of low-pressure injection molding and preparation method thereof

[0033] It includes a base fabric layer, an adhesive layer, a foam layer, a dense layer and a surface treatment layer; wherein, the base layer is made of weft-knitted double-sided knitted fabric;

[0034] The dense layer is made of the following raw materials in parts by weight: 100 parts of polyvinyl chloride paste resin powder, 65 parts of plasticizer, 2 parts of heat stabilizer, and 4 parts of color paste;

[0035] The foam layer is made of the following raw materials in parts by weight: 100 parts of polyvinyl chloride paste resin powder, 65 parts of plasticizer, 2 parts of heat stabilizer, and 2 parts of color paste;

[0036] The surface treatment layer is made of the following raw materials in parts by weight: 74 parts of water-based polyurethane finishing agent of water-based polycarbonate polyurethane, 24 parts of aliphatic polyurethane, 7 parts...

Embodiment 3

[0043] Embodiment 3——be applicable to the artificial leather of low-pressure injection molding and preparation method thereof

[0044] It includes a base fabric layer, an adhesive layer, a foam layer, a dense layer and a surface treatment layer; wherein, the base layer is made of weft-knitted double-sided knitted fabric;

[0045] The dense layer is made of the following raw materials in parts by weight: 100 parts of polyvinyl chloride paste resin powder, 70 parts of plasticizer, 1 part of heat stabilizer, and 3 parts of color paste;

[0046] The foam layer is made of the following raw materials in parts by weight: 100 parts of polyvinyl chloride paste resin powder, 70 parts of plasticizer, 2.5 parts of heat stabilizer, and 3 parts of color paste;

[0047] The surface treatment layer is made of the following raw materials in parts by weight: 80 parts of water-based polyurethane finishing agent of water-based polycarbonate polyurethane, 30 parts of aliphatic polyurethane, 8 parts ...

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Abstract

The invention discloses an artificial leather suitable for low-pressure injection molding and a preparation method thereof, which belong to the technical field of leathers. The artificial leather comprises a base fabric layer, a bonding layer, a foaming layer, a compact layer and a surface treatment layer, wherein the base fabric layer is prepared by adopting weft knitting double jersey; the thickness of the compact layer is larger than the thickness of the surface treatment layer, and accounts for 41 percent to 50 percent of the thickness of the whole artificial leather; in raw materials of the compact layer, the dosage of a plasticizer accounts for 35.7 percent to 40.2 percent of the sum of the raw materials; in raw materials of the foaming layer, the dosage of the plasticizer accounts for 35.9 percent to 42.7 percent of the sum of the raw materials. The artificial leather provided by the invention solves the problems of folds, short mold, reduction printing, shiny sharp corners andsharp corner bursting of an existing artificial leather occurred during a low-pressure injection molding process of high-complexity workpieces.

Description

technical field [0001] The invention relates to the technical field of leather, in particular to leather suitable for low-pressure injection molding and a preparation method thereof. Background technique [0002] Artificial leather is a plastic product that looks and feels like leather and can be used instead of it. It is usually made of fabric as a base, coated with synthetic resin and various plastics. It mainly includes PVC artificial leather, polyurethane artificial leather and polyurethane synthetic leather. Three categories. At present, the most commonly used artificial leather in the market is polyvinyl chloride artificial leather. However, with the continuous progress of the automobile industry, its requirements for the required polyvinyl chloride artificial leather are also getting higher and higher, and the polyvinyl chloride artificial leather sold on the market can no longer meet the needs of the development of the automobile industry. For example, the existing...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/08D06N3/00D06N3/04D06N3/14
CPCD06N3/08D06N3/0009D06N3/0097D06N3/042D06N3/144D06N2209/06D06N2209/16D06N2209/1635D06N2211/28
Inventor 李志海莫兰莫俊柱陈龙黄国华杨开沈
Owner 广西鑫深科技有限公司
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