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A kind of method that utilizes low-grade skin source to prepare oily wax skin

A low-grade, oil-wax technology, which is applied in the field of oil-wax leather preparation, can solve the problems of affecting the properties of the leather, low product quality grades, complex processes, etc., and achieve the effects of improving the finished product grade rate, increasing added value, and good wear resistance

Active Publication Date: 2022-02-22
湖南银河制革有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional leather trimming process is complicated, and the natural properties of the obtained leather are weak, which affects the properties of the leather, and the product quality level is low
[0004] Waxed leather is a special leather effect formed by polishing, oiling and waxing the top layer of cowhide. It is a kind of high-grade leather. high

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0018] In the embodiment, when using low-grade leather sources to prepare oily wax leather, the following steps are carried out in sequence. Due to the differences in the cortex of different leathers, there are certain differences in the use of different reagents, and the corresponding operation sequence should not be changed to avoid affect the processing quality.

[0019] In this example, the leather species of low-grade blue skin is American steer napa skin, and the selected low-grade skin is squeezed, shaved, and weighed according to the routine, and then rinsed. After rinsing, use acid Wash back to soften and neutralize, and then retannage. During retanning, combined tanning agent will be added. The amount of combined tanning agent added is e...

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PUM

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Abstract

The invention discloses a method for preparing oily wax leather by using low-grade leather sources. The method selects low-grade blue leather as a raw material, and first uses a retanning process to pretreat the low-grade blue leather to tighten the leather. Obtain a wear-resistant and mold-resistant leather base, and then use repairing paste and polishing wax to brush; after brushing, use a pass-through leather grinder with a specific number of sandpaper to grind off the surface repairing paste and grain layer, and then Carry out the roller coating operation, and use the molding plate to carry out multiple low-temperature and low-pressure molding during the roller coating process. After the roller coating is completed, dry it to obtain the finished oil wax skin. The invention can efficiently utilize low-grade leather sources, and the prepared oily wax leather has good strength and wear resistance, uniform and full and prominent lines, and low visibility of scars, and is suitable as leather for shoes.

Description

technical field [0001] The invention relates to the technical field of leather preparation, in particular to a method for preparing oily wax leather from low-grade leather sources. Background technique [0002] During the growth, slaughtering, transportation, and processing of cowhide, due to various reasons, the surface of the leather will have uneven surfaces, rough pores, and scars. The existence of these disabilities affects the appearance and quality of the leather. Utilization rate, lowering the leather grade, lowering the leather utilization rate, will easily cause waste of resources. Therefore, how to improve the leather grade is a technical problem to be solved urgently in the leather field. [0003] Low-grade leather embryos are a major problem for tanneries, and developing shaving products for this problem is the most effective and direct method. The traditional leather trimming process is complicated, and the natural properties of the obtained leather are weak, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C13/02C14C3/08C14C3/22C14C3/10C14B1/46C14C11/00
CPCC14C13/02C14C3/08C14C3/22C14C3/10C14B1/46C14C11/00
Inventor 王辉达周斌于君德王刚林
Owner 湖南银河制革有限公司