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Anti-bending leather

An anti-bending and leather technology, which is applied in leather manufacturing, leather drying, leather impregnation, etc., can solve the problems of restricting the application of soft leather, hard and brittle coating materials, poor bending resistance, etc., and achieve uniform dyeing and adhesion performance. Improves smoothness and good bending resistance

Inactive Publication Date: 2020-12-18
QINGYUAN TENGXIANG LEATHER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the soft top leathers on the market have problems such as poor water resistance, poor bending resistance, hard and brittle coating materials, and coarse grains, which seriously restrict the application of soft top leathers in high-grade shoe upper leathers. improved, proposing a twist-resistant leather

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of anti-bending leather of the present invention comprises the following leather processing steps:

[0024] Step 1. Preparation stage: select soft leather materials, remove impurities, degrease, soften and pickle;

[0025] Step 2, tanning stage: change the leather structure by chemical methods, the main processes are: pre-tanning, main tanning and re-tanning;

[0026] Step 3. Finishing stage: the main purpose is to give the leather some special sensory properties, such as thickness, softness, color, surface state, water resistance and resistance to twists and turns. The main processes in this stage are: splitting and smoothing , neutralization, dyeing, fatliquoring, drying and embossing, etc.

[0027] Among them, according to step 1, the main purpose is to remove all useless things on the animal skin, such as hair, fat, various glands and soluble proteins in the skin, and treat the leather body to facilitate subsequent processing And improve the quality of leat...

Embodiment 2

[0037] A kind of anti-bending leather of the present invention comprises the following leather processing steps:

[0038] Step 1. Preparation stage: select soft leather materials, remove impurities, degrease, soften and pickle;

[0039] Step 2, tanning stage: change the leather structure by chemical methods, the main processes are: pre-tanning, main tanning and re-tanning;

[0040] Step 3. Finishing stage: the main purpose is to give the leather some special sensory properties, such as thickness, softness, color, surface state, water resistance and resistance to twists and turns. The main processes at this stage are: splitting, smoothing , neutralization, dyeing, fatliquoring, drying and embossing, etc.

[0041] Among them, according to step 1, the main purpose is to remove all useless things on the animal skin, such as hair, fat, various glands and soluble proteins in the skin, and treat the leather body to facilitate subsequent processing And improve the quality of leather...

Embodiment 3

[0051] A kind of anti-bending leather of the present invention comprises the following leather processing steps:

[0052] Step 1. Preparation stage: select soft leather materials, remove impurities, degrease, soften and pickle;

[0053] Step 2, tanning stage: change the leather structure by chemical methods, the main processes are: pre-tanning, main tanning and re-tanning;

[0054] Step 3. Finishing stage: the main purpose is to give the leather some special sensory properties, such as thickness, softness, color, surface state, water resistance and resistance to twists and turns. The main processes in this stage are: splitting and smoothing , neutralization, dyeing, fatliquoring, drying and embossing, etc.

[0055] Among them, according to step 1, the main purpose is to remove all useless things on the animal skin, such as hair, fat, various glands and soluble proteins in the skin, and treat the leather body to facilitate subsequent processing And improve the quality of leat...

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Abstract

The invention discloses anti-bending leather. The anti-bending leather comprises the following leather processing technology steps that 1, a preparation stage is carried out, specifically, soft skin materials are carefully selected, impurities are removed, and degreasing, softening and pickling are carried out; and 2, a tanning stage is carried out, specifically, the structure of the leather is changed through a chemical method, wherein the main procedures comprise pre-tanning, main tanning and retanning. According to the anti-bending leather, multiple soaking and impurity removal are adoptedin the preparation stage, so that the permeability of pores of the leather is conveniently improved, and the smoothness of the inner surfaces of the pores is improved; the leather is repeatedly processed through multiple layers of pre-tanning, main tanning and retanning, and collagenous fibers of animal skin are changed in structure through the chemical method, so that the animal skin is changed into the leather from the skin, the softness of the leather is improved, the fullness is improved, the part difference is reduced, the surface charge of the leather is changed, and the dyeing uniformity and adhesion performance are promoted; and through adding of sodium bicarbonate, resin and tannin extract and scientific proportion of the multiple materials, the surface of the leather is more delicate in touch, oily, antioxidant and better in bending-resistant effect.

Description

technical field [0001] The invention relates to the technical field of leather, in particular to an anti-bending leather. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. There is a special grain layer on the surface, which has natural grain and luster, and feels comfortable. [0003] Because soft leather has the advantages of fine grain, clear grain, soft texture, comfortable wearing, good hygienic performance, and various colors, it is favored by consumers and can be used to make casual shoes, slippers, sandals, fashion Shoes, etc., have played a very good role in decoration and embellishment in fashion trends. However, most of the soft top leathers on the market have problems such as poor water resistance, poor bending resistance, hard and brittle coating materials, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14B1/02C14C1/08C14C3/28C14C15/00C14C9/02C14B1/58C14B1/56
CPCC14B1/02C14B1/56C14B1/58C14C1/08C14C3/28C14C9/02C14C15/00
Inventor 冯自强李尚根尹学兵
Owner QINGYUAN TENGXIANG LEATHER CO LTD
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