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A leather finishing method to solve the large and deep leather grain

A leather texture and leather technology, applied in the fields of tanning chemistry and tanning engineering, can solve the problems of large and deep wet blue leather texture, large differences, reduced utilization rate and added value, etc., to reduce leather wrinkles, difficult to disassemble and The effect of cleaning and preventing water loss and shrinkage

Active Publication Date: 2022-03-04
XINGYE LEATHER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in tanning production, due to large differences in raw materials, climate and environmental changes, or unreasonable tanning processes, some wet-blue leathers have large and deep grain defects, which seriously affects the aesthetics of finished leather and reduces its utilization rate and added value.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] The implementation of the present invention will be described in detail below in conjunction with specific examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. Unless otherwise specified, the technical means adopted in the examples are conventional means well known to those skilled in the art, and the reagents and products employed are also commercially available, and the various processes and methods not described in detail are those skilled in the art. well-known conventional methods.

[0027] A leather finishing method for solving the problem of large and deep leather grains, comprising the following process steps: dark blue wet leather with large grains squeezed and stretched, shaved, weighed → surfactant softening → enzyme softening → squeezing and stretching → neutralization →dyeing and fatliquoring→chrome retanning→drying finishing;

[002...

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PUM

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Abstract

The invention relates to the technical fields of tanning chemistry and tanning engineering, and provides a leather finishing method for solving large and deep leather grains. , dyeing and fatliquoring, retanning, drying and finishing; including the use of multiple water squeezing and stretching techniques, replacing water squeezing and stretching with water squeezing and stretching before shaving, and adding a water squeezing and stretching process after softening; the softening includes surface Active agent softening and enzyme softening; no filling process; chrome retanning is carried out after dyeing and fatliquoring. The soft shoe upper leather made by this method is flat and has no obvious wrinkles. The utilization rate is high, and it has natural, Comfortable, light hand feeling, good water permeability and air permeability, obvious characteristics of natural leather, very good market competitiveness, and bring good economic benefits to enterprises.

Description

technical field [0001] The invention relates to the technical fields of tanning chemistry and tanning engineering, in particular to a leather finishing method for solving large and deep leather grains. Background technique [0002] Cow leather is currently the most widely used natural leather in tanning production and processing. It has a large opening, good utilization rate, good physical-mechanical strength, and natural and comfortable sensory properties. It has a very good role in the natural leather product market. development prospects. However, in tanning production, due to large differences in raw materials, climate and environmental changes, or unreasonable tanning processes, some wet-blue leathers have large and deep grain defects, which seriously affects the aesthetics of finished leather and reduces its utilization rate and added value. . Therefore, how to solve the problem of large and deep leather grains has very important practical significance for tanning en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C11/00
CPCC14C11/00
Inventor 孙辉永梁永贤温会涛牛泽陈军但卫华
Owner XINGYE LEATHER TECH CO LTD
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