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Clean process for producing leather by using sturgeon skin

A production process, the technology of sturgeon skin, applied in the field of clean tanning production process of sturgeon skin, can solve the problems of deliming wastewater pollution, chromium-containing sewage pollution environment, excessive sulfide discharge, etc., so as to reduce the consumption of lime, The effect of soft touch and reduction of ammonia nitrogen content

Inactive Publication Date: 2011-09-28
王学川 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a clean tanning production process for sturgeon skin, so as to solve the problems in the existing tanning technology, such as serious pollution of the environment by chromium-containing sewage, serious excessive discharge of sulfide, and pollution of deliming wastewater.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The clean tanning production process of sturgeon skin in the present embodiment comprises the following steps successively;

[0039] Soaking in water: Soak the sturgeon skin to be treated in the soaking solution, which contains 300% water, 1% penetrating agent such as JFC, 1% degreasing agent, 0.15% fungicide, and 1% sodium carbonate. The soaking time is overnight.

[0040] Flesh removal: Check the condition of the sturgeon skin on the second day after the water immersion treatment, and manually remove the flesh after it is fully softened, that is, remove the remaining fish meat on the surface of the sturgeon skin by manually removing the flesh, weigh it, and strengthen it while removing the flesh. The flesh on the back and sides should be removed, but at the same time, care should be taken to protect the natural scales from falling off.

[0041] Degreasing: put the de-fleshed sturgeon skin into a degreasing solution at a temperature between 35 and 40°C, the degreasing...

Embodiment 2

[0058] The clean tanning production process of sturgeon skin in the present embodiment comprises the following steps successively;

[0059] Soaking in water: Soak the sturgeon skin to be treated in the soaking solution, which contains 200% water, 5% penetrating agent such as JFC, 5% degreasing agent, 0.1% fungicide, and 5% sodium carbonate. The soaking time is overnight.

[0060] Flesh removal: Check the condition of the sturgeon skin on the second day after the water immersion treatment, and manually remove the flesh after it is fully softened, that is, remove the remaining fish meat on the surface of the sturgeon skin by manually removing the flesh, weigh it, and strengthen it while removing the flesh. The flesh on the back and sides should be removed, but at the same time, care should be taken to protect the natural scales from falling off.

[0061] Degreasing: put the de-fleshed sturgeon skin into a degreasing solution with a temperature between 35 and 40°C, the degreasin...

Embodiment 3

[0078] The clean tanning production process of sturgeon skin in the present embodiment comprises the following steps successively;

[0079] Soaking in water: Soak the sturgeon skin to be treated in the soaking solution, which contains 400% water, 2% penetrating agent such as JFC, 2% degreasing agent, 0.5% fungicide, and 2% sodium carbonate. The soaking time is overnight.

[0080] Flesh removal: Check the condition of the sturgeon skin on the second day after the water immersion treatment, and manually remove the flesh after it is fully softened, that is, remove the remaining fish meat on the surface of the sturgeon skin by manually removing the flesh, weigh it, and strengthen it while removing the flesh. The flesh on the back and sides should be removed, but at the same time, care should be taken to protect the natural scales from falling off.

[0081] Degreasing: put the de-fleshed sturgeon skin into a degreasing solution with a temperature between 35 and 40°C, the degreasin...

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Abstract

The invention discloses a clean process for producing leather by using sturgeon skin, which comprises the following steps of: immersing sturgeon into water, manual meat removing, degreasing, oil slick scratching, ash immersing, dying, ash immersing, oil slick scratching, ash restoring, oil slick scratching, deliming without ammonium, oxidation bleaching, acid etching, reduction bleaching, softening, organophosphorus tanning or oxazolidine tanning, dyeing and fat-liquoring, aluminum retanning or zirconium retanning, washing, hung airing and drying and finishing. According to the clean process, the sturgeon skin is tanned by adopting an organophosphorus tanning or oxazolidine tanning agent and a chrome-free tanning process; a less-sulfur liming and deliming without ammonium clean process is adopted in the tanning process, so that the harm of heavy metal chromium to the environment and a human body can be avoided, the emission of sulphide and the consumption of lime are reduced, the content of ammonia nitrogen in wastewater is reduced and the cost of sewage treatment of enterprises is saved; in addition, the produced environmentally-friendly sturgeon skin is soft in hand feeling, plump, rich in elasticity and flat and fine in particle surfaces, and keeps beautiful and complete natural squama.

Description

technical field [0001] The invention relates to a leather processing technology, in particular to a clean tanning production technology of sturgeon skin. Background technique [0002] Chrome tanning is currently the most widely used method in the world with the best tanning effect. The tanned leather has many advantages such as heat and humidity resistance, good stability, soft and plump finished leather, and good formability. The chrome tanning method has been in the dominant position for its superior tanning performance for more than 100 years. With the increasing appeal of human beings for environmental protection and the implementation of my country's sustainable development strategy, more and more attention has been paid to the prevention and control of pollution and the protection of the environment. Due to the carcinogenic effect of chromium (VI) and the environmental pollution caused by the chromium salt tanning method, the chrome tanning method will face severe cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C3/04C14C9/02C14C3/28C14C3/08C14C1/06D06P3/32C14C1/00C14C1/08C14C1/04C14C3/02
Inventor 强涛涛步巧巧王学川孟翔麟孟翔宸梁春林
Owner 王学川
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