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Tanning agent for sheep skin and tanning technology of sheep skin

A technology for tanning agent and sheepskin, which is applied in the field of tanning agent and its tanning process, can solve the problems of high cost, low efficiency, complicated tanning process and the like, and achieve the effects of reducing production cost, simplifying process and simplifying tanning process.

Inactive Publication Date: 2017-08-11
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 sheepskin and its sheepskin 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 maleic acid, 5 parts of diisocyanate, 11 parts of urea-formaldehyde resin, 2 parts of azerolone, 13 parts of clothing Dibutyl carboxylate, 8 parts of biscarboxyethylamine, 16 parts of sodium phthalate, 4.5 parts of o-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 10 parts of persulfuric acid Ammonium.

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

[0025] a. Soaking in water: immerse the dehaired sheepskin in the salt water with a pH of 4.5, and the soaking time is 6 hours;

[0026] b. De-meat: remove the meat from the sheepskin through the de-meat machine;

[0027] c. Softening: immerse the sheepskin in salt water with a pH of 4.5 for 15-17 minutes, then drain the sheepskin f...

Embodiment approach 2

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

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

[0034] a. Soak in water: immerse the dehaired sheepskin 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 sheepskin through the de-meat machine;

[0036] c. Softening: immerse the sheepskin in salt water with a pH of 5 for 20 minutes, then drain t...

Embodiment approach 3

[0040] The preparation of the tanning agent of the present embodiment is made up of the following raw materials of proportioning by weight: 9.5 parts of maleic acid, 4.5 parts of diisocyanate, 10 parts of urea-formaldehyde resin, 2.5 parts of azolane, 14 parts Parts of dibutyl itaconate, 7.5 parts of biscarboxyethylamine, 16 parts of sodium phthalate, 4.5 parts of o-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 9.5 parts of ammonium persulfate.

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

[0042] a. Soaking in water: immerse the dehaired sheepskin in the salt water with a pH of 4, and the soaking time is 64 hours;

[0043] b. De-meat: remove the meat from the sheepskin through the de-meat machine;

[0044] c. Softening: immerse the sheepskin in salt water with a pH of 4 for 15 minutes, then drain...

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Abstract

The invention relates to a tanning agent for sheep skin and a tanning technology of the sheep skin. The tanning agent consists of maleic acid, diisocyanate, urea resin, 2-oxopyrrolidine, dibutyl itaconate, diethanolamine, sodium phthalate, benzaldehyde carboxylic acid, di-n-butylamine, fatty aldehyde and ammonium persulfate. The tanning technology comprises the steps of water soaking, fleshing, softening, tanning and air drying treatment on the sheep skin sequentially. The tanning agent has a good tanning function specifically on the sheep skin; with the adoption of the tanning agent for tanning the sheep skin, working processes can be simplified, and sheep skin leather can be obtained simply after the sheep skin is subjected to the water soaking, the fleshing, the softening, the tanning and the air drying treatment; the tanning process has a fat elimination function on the sheep skin; the tanning technology is simplified effectively; the tanning efficiency is improved effectively; the production cost is reduced effectively; and the prepared sheep skin leather has good characteristics of softness, smoothness, wear resistance, good elasticity, etc.

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 sheepskin 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 proc...

Claims

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Application Information

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IPC IPC(8): C14C3/08
CPCC14C3/08
Inventor 王星河
Owner QUANZHOU XINCAI TRADE
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