Hair-protection and hair-removing composition of organosilicon and enzyme and method for hair-protection and hair-removing animal skin by the same

A hair removal agent and silicone technology, applied in small raw hide/big raw hide/leather/fur treatment, small raw hide/big raw hide/leather skin/fur chemical treatment, pre-tanning chemical treatment, etc., can solve difficult to obtain, vulcanization Solve problems such as high sodium consumption and endless hair removal, and achieve the effects of reducing operating strength, improving leather quality, and folding resistance and softness

Inactive Publication Date: 2007-03-14
禾瑞(漳州)助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this alkaline protease is not easy to obtain, it is difficult to produce on a large scale, and the consumption of sodium sulfide is still relatively high
[0007] Chinese patent 90101445.1 "A new gray enzymatic hair removal process that completely solves sulfur pollution" uses protease to remove hair under the action of lime to completely replace sulfide and solve the problem of sulfur pollution, but it is difficult to control the process and prone to incomplete or rotten hair removal surface phenomenon
Chinese patent 03135883-7 "Less sulfur enzymatic hair removal composition and its water bath hair removal method", 03135882.9 "Less sulfur enzyme hair removal composition and its stacking hair removal method" use a small amount of sodium sulfide as an auxiliary depilatory or hair destroying agent. Liming with lime, there is also sulfur ion and lime pollution, and the time of enzymatic stacking and hair removal should not exceed 72 hours
[0010] After investigation, there is no literature report on the treatment of animal skin hair preservation and depilation by water-based silicone polymers and biological crude enzyme preparations at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment one, heavy leather pigskin hair preservation and depilation

[0059] 1. Drum rolling enzyme hair preservation pretreatment

[0060] Put 100kg of old sow skin to be depilated that has been completely soaked in water and fully degreased into the drum with a drain door to fully drain the running water, add 6kg of industrial salt and turn it with the door closed for 40 minutes, fully drain the running water with the drain door, and then add organic silicon Inhibitor 0.6kg, organosilicon emulsifier 0.5kg, organosilicon buffer 0.5kg, 3942 protease 0.3kg, pancreatin 0.2kg, 85μm fine rice bran 1.5kg in the drum, close the door and rotate for 20 minutes, reverse for 20 minutes , use the leak door to fully drain the running water, put the drum on the horse and let it stand for 40 minutes.

[0061] The above operations are all carried out under normal temperature and pressure, without distinction between winter and summer.

[0062] 2. Enzyme stacking hair removal trea...

Embodiment 2

[0070] Embodiment two, light leather pigskin hair preservation and depilation

[0071] 1. Drum rolling enzyme hair preservation pretreatment

[0072] Drain 100kg of light leather pigskin that has been completely soaked in water and fully degreased in the drum with a drain door, then add 5kg of industrial salt and rotate the door for 40 minutes, fully drain the running water with the drain door, and then add organic silicon Inhibitor 0.5kg, organosilicon emulsifier 0.4kg, organosilicon buffer 0.4kg, 3942 protease 0.2kg, pancreatin 0.1kg, 65 micron rice bran 1.3kg in the drum, close the door and rotate forward for 20 minutes, reverse for 20 minutes Minutes, fully drain the running water with a leaking door, put the drum on the horse and let it stand for 40 minutes.

[0073] The above operations are all carried out under normal temperature and pressure, without distinction between winter and summer.

[0074] 2. Enzyme stacking hair removal treatment

[0075] Add 0.5kg of silic...

Embodiment 3

[0082] Embodiment three, yellow cowhide hair preservation and depilation

[0083] 1. Drum rolling enzyme hair preservation pretreatment

[0084] Drain 100kg of yellow cowhide that has been completely soaked in water and fully degreased in the drum with a leak door, add 4.5kg of industrial salt and rotate it for 40 minutes with the door closed, fully drain the water with the leak door, and then add organic silicon to inhibit it. Put 0.4kg of agent, 0.3kg of silicone emulsifier, 0.4kg of silicone buffer, 0.2kg of 3942 protease, 0.1kg of pancreatin, 1.2kg of 70 micron rice bran in the drum, close the door and turn forward for 20 minutes and reverse for 20 minutes , use the leak door to fully drain the running water, put the drum on the horse and let it stand for 40 minutes.

[0085] The above operations are all carried out under normal temperature and pressure, without distinction between winter and summer.

[0086] 2. Enzyme stacking hair removal treatment

[0087] Add 0.5kg ...

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Abstract

One kind of hair-keeping and eliminating silicone-enzyme composition and the method of using the composition in treating animal hide are disclosed. The composition consists of water soluble silicone polymer and coarse enzyme preparation. When the composition is used in treating leather, the leather is first rolled in a roller with the composition to loosen the hair root without hair falling, and then coated with the composition and piled to depilate completely, with the hair being recovered. The depilating process with the composition is simple, and can obtain high quality leather.

Description

technical field [0001] The invention relates to a composition of organosilicon and enzyme hair-preserving and depilatory agent and a method for treating animal skins with hair-preserving and depilatory treatment. It belongs to the field of leather engineering technology. Background technique [0002] The traditional tanning process adopts salt pickling method to preserve raw hides, soda ash degreasing, machine plucking, buttocks coating ash (sodium sulfide, lime) or enzymatic coating, alkali sulfide destroying hair, lime liming, ammonium salt deliming, Yuanming powder rolling Nitrate, trypsin softening, sulfuric acid pickling, basic chromium salt tanning and other processes, so the wastewater discharged from the tannery contains a large amount of acid, alkali, salt and trivalent chromium ions, which seriously pollutes the surrounding environment. In order to reduce the pollution in the tanning industry, it is urgent to develop environmentally friendly leather chemicals and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C1/06C12S7/00
Inventor 阳庆文
Owner 禾瑞(漳州)助剂有限公司
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