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Tanning agent for pigskin and pigskin tanning technology adopting tanning agent

A tanning agent and pigskin technology, applied in leather manufacturing, small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather/fur mechanical treatment, etc., can solve the complex tanning process, high cost and efficiency Low and other problems, to achieve the effect of simplifying the tanning process, reducing the production cost and simplifying the process

Inactive Publication Date: 2017-08-29
QUANZHOU XINCAI TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a tanning agent for pigskin and its pigskin tanning process to overcome the problems of complex tanning process, low efficiency and high cost in the current partial tanning process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0023] The preparation of this tanning agent is made of the following raw materials in proportioning by weight: 8.5 parts of di-n-butylamine, 5 parts of diisocyanate, 11 parts of urea-formaldehyde resin, 2 parts of azerolone, 13 parts of itacon ester, 8 parts of biscarboxyethylamine, 16 parts of sodium phthalate, 4.5 parts of o-carboxybenzaldehyde, 5.5 parts of maleic acid, 6.5 parts of fatty aldehyde and 10 parts of ammonium sulfate.

[0024] The tanning process of the pigskin using the tanning agent of the present embodiment is that the pigskin is only processed through the following steps carried out in sequence:

[0025] a. Soak in water: immerse the depilated pigskin in the salt water with pH 4.5, and the immersion time is 6 hours;

[0026] b. De-meat: remove the meat from the pigskin by the de-meat machine;

[0027] c. Softening: immerse the pigskin in salt water with a pH of 4.5 for 15-17 minutes, then drain the pigskin for 4-8 hours;

[0028] d. Tanning: Add the raw ...

Embodiment approach 2

[0032] The preparation of the tanning agent of the present embodiment is made up of the following raw material proportioning by weight: 7.5 parts of di-n-butylamine, 5.5 parts of diisocyanate, 12 parts of urea-formaldehyde resin, 1.5 parts of azerolone, 12 parts Itaconate, 8.5 parts of biscarboxyethylamine, 16.5 parts of sodium phthalate, 3.5 parts of o-carboxybenzaldehyde, 4.5 parts of maleic acid, 7.5 parts of fatty aldehyde and 9 parts of sulfuric acid Ammonium.

[0033] The tanning process of the pigskin using the tanning agent of the present embodiment is that the pigskin is only processed through the following steps carried out in sequence:

[0034] a. Soaking in water: immerse the dehaired pigskin in the salt water with a pH of 5, and the soaking time is 8 hours;

[0035] b. De-meat: remove the meat from the pigskin by the de-meat machine;

[0036] c. Softening: immerse the pigskin in salt water with a pH of 5 for 20 minutes, then drain the pigskin for 4 to 8 hours; ...

Embodiment approach 3

[0040] The preparation of the tanning agent of the present embodiment is composed of the following raw materials in proportions by weight: 9.5 parts of di-n-butylamine, 4.5 parts of diisocyanate, 10 parts of urea-formaldehyde resin, 2.5 parts of azapentane, 14 parts Itaconate, 7.5 parts of biscarboxyethylamine, 16 parts of sodium phthalate, 4.5 parts of o-carboxybenzaldehyde, 5.5 parts of maleic acid, 6.5 parts of fatty aldehyde and 9.5 parts of sulfuric acid Ammonium.

[0041] The tanning process of the pigskin using the tanning agent of the present embodiment is that the pigskin is only processed through the following steps carried out in sequence:

[0042] a. Soak in water: immerse the depilated pigskin in the salt water with pH of 4, and the soaking time is 64 hours;

[0043] b. De-meat: remove the meat from the pigskin by the de-meat machine;

[0044] c. Softening: immerse the pigskin in salt water with a pH of 4 for 15 minutes, then drain the pigskin for 4 to 8 hours; ...

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Abstract

The invention relates to a tanning agent for pigskin and a pigskin tanning technology adopting the tanning agent. The tanning agent is prepared from di-n-butylamine, diisocyanate, urea-formaldehyde resin, 2-oxopyrrolidine, itaconate, diethanolamine, sodium phthalate, carboxybenzaldehyde, maleic acid, fatty aldehyde and ammonium sulfate. The tanning technology comprises the steps as follows: the pigskin is sequentially treated with procedures including soaking in water, removal of pork, softening, tanning and airing. The tanning agent has the good tanning effect on the pigskin in a targeted manner, the procedures can be effectively simplified when the pigskin is tanned with the tanning agent, pig leather can be obtained through treatment of the pigskin with the procedures including soaking in the water, removal of the pork, softening, tanning and airing, the tanning procedure has the fat eliminating effect on the pigskin, the tanning technology is effectively simplified, the tanning efficiency is effectively improved, the production cost is effectively reduced, and the prepared pig leather has the good characteristics of being soft, fine, wear-resistant, good in elasticity and the like.

Description

technical field [0001] The invention relates to a tanning agent and a tanning process thereof, in particular to a tanning agent especially suitable for pigskin and a tanning process thereof. 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] The current leather tanning process is relatively complicated. For example, the Chinese invention patent with application number 201310725180.5 provides a goatskin synthetic tanning process. Meat → secondary degreasing → pickling → softening → tanning → neutralization → drying with water → regain moisture and shovel until soft. The tanning process requires multiple processes of immersion in water, degreasing, etc., the proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C3/08C14C3/04C14C1/04C14C1/08C14B1/58C14B1/02
CPCC14C3/08C14B1/02C14B1/58C14C1/04C14C1/08C14C3/04
Inventor 王星河
Owner QUANZHOU XINCAI TRADE
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