Leather fabric for leatherware and preparation process of leather fabric

A leather and fabric technology, applied in the field of artificial leather, can solve the problems of non-environmental protection, high cost, and lack of softness of PVC artificial leather

Pending Publication Date: 2022-03-25
广东天使之吻实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the technical problems that the existing PVC artificial leather lacks softness, and the existing softness improvement technology has high cost or is not environmentally friendly, and provides a low-cost and environmentally friendly PVC artificial leather with high softness

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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  • Leather fabric for leatherware and preparation process of leather fabric
  • Leather fabric for leatherware and preparation process of leather fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Using PVC artificial leather instead of natural leather can not only greatly save costs, but also achieve an effect similar to genuine leather in appearance. The formula of PVC artificial leather is usually composed of PVC resin, plasticizer, stabilizer, flame retardant, foaming agent, surface treatment agent and base fabric. The base fabric usually includes knitted fabric, non-woven fabric or microfiber fabric, etc. The production process is generally There are coating method and calendering method. Existing PVC artificial leather has the problem of lack of softness. Research hotspots in this field mainly focus on the formulation optimization of the material itself, such as the improvement of plasticizers in the prior art, composite PU polymer materials, etc. However, the existing technology has problems such as cost and environmental protection, and it is not a good way to improve.

[0045] The applicant's research has found that the softness of PVC artificial leathe...

example 1

[0077] Example 1: The leather goods and leather fabric described in Example 1 includes a surface layer, a foam layer and a base cloth that are sequentially compounded from top to bottom. The base fabric is a basic fabric described in the embodiment.

[0078] The present invention also provides a preparation process for the above-mentioned leather goods leather fabric, comprising the following steps:

[0079] (1) Prepare the base cloth and release paper, and configure the surface layer slurry and foam layer slurry according to the following formula:

[0080] The surface layer is made of the following raw materials in proportion by weight: 100 parts of PVC resin powder, 70 parts of plasticizer, 5 parts of stabilizer, 10 parts of color paste and appropriate amount of nano-silica filler, wherein, Adding a mass fraction of 5% nano-silica filler in the layer slurry;

[0081] The foam layer is made of the following raw materials in proportion by weight: 100 parts of PVC resin powde...

Embodiment 2

[0118] In a preferred implementation of the present invention, the outer surface of the surface layer is also coated with a silicone-modified polyurethane resin coating.

[0119] Polyurethane resin is grafted and modified by using silicone to achieve soft and slippery effect on artificial leather. Because the main body of polyurethane is also polyester ether, it can be modified with polyether-containing silicone, which has the advantage of good compatibility. Silicone modification, there is a 100% modulus and a decrease in the coefficient of sliding friction at the same time, but it can endow the artificial leather with soft and slippery, or soft but not sticky.

[0120] In one implementation, the modified silicone can be SF-8427 (DOW CORNING), which is a polyether-modified silicone with two hydroxyl groups, with a relative molecular mass of 2000.

[0121] For other structures of the leather fabric and its preparation process described in this embodiment, refer to the prior a...

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 leather fabric comprises a surface layer, a foaming layer and base cloth which are sequentially compounded from top to bottom, the base cloth is of a weft-knitted double-sided structure formed by interweaving cotton yarns and metaplexis japonica fibers; the front side of the fabric of the base cloth is compounded with the foaming layer, and the front side of the fabric is of a coil raised line structure consisting of a plurality of rows of loose large coil wale formed by the cotton yarns and a plurality of rows of compact small coil wale formed by the metaplexis japonica fibers. The fluffy and soft fabric is formed through the special base cloth structure, the fabric is fluffy in hand feeling, good in elasticity and compact in structure, the softness of the base cloth is greatly improved, and the fluffy and soft fabric has good fluffy elongation. Under the base cloth structure, the front face of the fabric is compounded with the PVC foaming material, the loose large coil wale and the compact small coil wale on the front face of the fabric enable the base cloth structure to be fluffy and good in elongation, the PVC artificial leather is high in softness if the base cloth structure is fluffy and good in elongation, and subjective soft touch of a user is better.

Description

technical field [0001] The invention belongs to the technical field of artificial leather, and in particular relates to a leather fabric for leather goods and a preparation process thereof. Background technique [0002] PVC artificial leather technology was first developed in the 1930s. With the continuous development of new coating materials and filling materials and the optimization and improvement of synthetic processes, PVC synthetic leather has gradually become the best choice to replace natural leather. It is used in leather goods, leather bags, leather shoes, It is widely used in car interiors and other artificial leather products. [0003] At present, PVC artificial leather is difficult to exhibit a texture comparable to natural leather due to lack of softness and toughness. However, in this field, the softness is mainly improved by increasing the amount of plasticizer, and the increase of plasticizer amount will correspondingly bring environmental problems and othe...

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): D06N3/14D06N3/00
CPCD06N3/14D06N3/0097D06N3/0063D06N3/007D06N3/0009D06N3/0015D06N2209/1635D06N2209/16D06N2211/28
Inventor 赖雄生孔小玲孔汝婷
Owner 广东天使之吻实业股份有限公司
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