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Environment-friendly semi-vegetable tanning oil wax leather production method

A production method, semi-vegetable tanning technology, applied in leather/skin/leather/rawhide chemical treatment equipment, leather impregnation, leather softening, etc.

Pending Publication Date: 2021-09-10
河南中牛实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an environment-friendly production method of semi-vegetable tanned oil wax leather, which solves the problem of certain defects in the existing oil wax leather production process

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0064] The embodiment of the present invention provides an environment-friendly semi-vegetable tanned wax leather production method, characterized in that: the steps of the production method include:

[0065] a. The process of preparing raw materials for skinning, the steps include: select the top layer of cowhide, put the top layer of cowhide into the leather skinning machine for skinning, the gray skin of the piece is 2.5-3.0mm; then put the top layer of cowhide after the skinning into the cleaning drum; add 150% clean water at 25°C to the cleaning drum; start the cleaning drum and wash for 15 minutes; open the drain, drain the water in the cleaning drum, then add 200% clean water at 25°C and 0.5% Ammonium sulfate; start the cleaning drum and clean for 15 minutes;

[0066]b. Deliming process, the steps include: taking out the washed top layer of cowhide from the cleaning drum, placing it on a drying rack, and drying it for 20 minutes; adding 60% clear water, 1.5% ammonium su...

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PUM

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Abstract

The invention provides an environment-friendly semi-vegetable tanned oil wax leather production method. The production method comprises the following steps of material preparing and leather splitting, dust removing, softening, acid leaching, pre-tanning, wringing and shaving, tanning and fat liquoring. The production process of the wax leather is optimized, so that more production time can be saved, the production efficiency is improved, and the leather superior to the leather on the market can be produced.

Description

technical field [0001] The invention relates to the technical field of leather production methods, in particular to an environment-friendly production method of semi-vegetable tanned oily wax leather. Background technique [0002] Raw hides must go through a series of preparatory processes such as soaking in water, dehairing, liming, softening, pickling, etc. before tanning in tanning. The above processes leave raw hides mainly with a fiber network composed of collagen, but they are not leather or raw hides. Tanning is generally carried out in a drum, and the tanning method varies according to the tanning agent used and the variety of finished leather. There are mainly chrome tanning and vegetable tanning, and others include aldehyde tanning, oil tanning, aluminum tanning, zirconium tanning, combined tanning, alum tanning, formaldehyde tanning, etc. In addition to no liming and depilation process and no heavy leather tanning method (such as vegetable tanning), other tanning...

Claims

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Application Information

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IPC IPC(8): C14B1/02C14B1/40C14C1/08C14C3/00C14C3/28C14C9/02C14C15/00C14B1/04
CPCC14B1/02C14B1/40C14C1/08C14C3/00C14C3/28C14C9/02C14C15/00C14B1/04
Inventor 范恩源夏皓帆范长华窦翌铭王振平张亚娟
Owner 河南中牛实业有限公司
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