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A kind of environment-friendly sheepskin garment leather processing technology

A processing technology and garment leather technology, applied in leather dipping, leather surface treatment, small raw hide/large raw hide/leather/fur treatment, etc., can solve problems such as poor washing resistance, chrome tanning is not environmentally friendly, and improve mechanical performance effect

Active Publication Date: 2018-07-10
绅邦服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects that garment leather produces odor, poor washing resistance, chrome tanning is not environmentally friendly, and produces oily cream, the present invention uses naringin, N-naphthalene-1-yl-3-hydroxynaphthalene-2-carboxamide , aminoacetic acid improves the mechanical properties of garment leather, sorbitol, 2-bromo-2-nitro-1,3-propanol, pyridoxine, D-panthenol, oleic acid amide, polyacrylamide, 2,3 -Dihydroxysuccinic acid improves the absorption of small molecular acrylic resins by leather, sorbitol, mannitol, tetrakis hydroxymethyl phosphorus chloride, and aluminate coupling agents fix oils and small molecular compounds, 3- Chloro-2-hydroxypropyltrimethylammonium chloride, polyethyleneimine, alum, titanium dioxide, talc can avoid oily frost and absorb fine molecular compounds

Method used

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  • A kind of environment-friendly sheepskin garment leather processing technology
  • A kind of environment-friendly sheepskin garment leather processing technology
  • A kind of environment-friendly sheepskin garment leather processing technology

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] (1) Tanning: 80% of the liquid ratio remains in the conventional garment leather pickling solution, add 0.8% sodium formate, 0.3% baking soda, stir at 28°C for 60 minutes, then add 3.0% aluminum tanning agent and sodium edetate 1 %, and keep rotating for 1 hour, then add 1.0% sodium formate to adjust the pH to 3.5-3.6, stir for 50 minutes, then add 1.2% sodium bicarbonate to adjust the pH to 4.0, then raise the temperature to 30°C, and stir for 300 minutes;

[0022] After the described tanning step, carry out successively the steps of taking out the drum and putting the horse on the horse, pressing water to soften it, slicing the skin, and shaving and trimming the edges. The double thickness of the leather is 1.2cm;

[0023] (2) Retanning: the ratio of mediation solution is 150%, add wattle bark extract 2%, small molecule acrylic acid retanning agent 1%, rotate at 40°C for 1.5h, then add 1.1% sorbitol and 0.2% naringin, rotate 60 minutes, add 0.2% baking soda to adjust...

example 2

[0027] Starting from the sour skin embryo, the amount of additives added in each process is based on the weight of the sour skin:

[0028] (1) Tanning: 80% of the liquid ratio remains in the conventional clothing leather pickling solution, add 1.3% sodium formate, 0.6% baking soda, stir at 28°C for 90 minutes, then add aluminum tanning agent 4.2% and 1, 2, 3, 4 in sequence , 1% sodium salt of 5,6-cyclohexanehexacarboxylic acid, and keep rotating for 1 hour, then add 1.2% sodium formate to adjust the pH to 3.5-3.6, stir for 70 minutes, then add 2.0% baking soda to adjust the pH to 5.0, and then heat up To 40°C, stir for 400min;

[0029] After the described tanning step, carry out successively the steps of taking out the drum and putting the horse on the horse, pressing the water to soften it, slicing the skin, and shaving and trimming the edges. The double thickness of the leather is 1.3cm;

[0030] (2) Retanning: mediation ratio 200%, add wattle bark extract 3%, small molecu...

example 3

[0034] Starting from the sour skin embryo, the amount of additives added in each process is based on the weight of the sour skin:

[0035](1) Tanning: 80% of the liquid ratio is left in the conventional garment leather pickling solution, add 1.0% sodium formate, 0.5% baking soda, stir at 28°C for 75min, then add 3.6% of aluminum tanning agent and 1% of sodium gluconate successively, and Keep rotating for 1 hour, then add 1.1% sodium formate to adjust the pH to 3.5-3.6, stir for 60 minutes, then add 1.6% baking soda to adjust the pH to 4.5, then raise the temperature to 35°C, and stir for 350 minutes;

[0036] After the tanning step, the steps of taking out the drum and putting the horse on the horse, pressing water to soften it, peeling and trimming the edges are carried out sequentially. The double thickness of the leather is 1.2m;

[0037] (2) Retanning: the ratio of mediation solution is 170%, add wattle bark extract 2.5%, small molecule acrylic acid retanning agent 1.5%, ...

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Abstract

The invention discloses an environmental-friendly processing technology for sheepskin clothing leather. In order to overcome the flaws that clothing leather generates smell, is bad in washing resistance, is not environmentally friendly in chrome tanning and generates oil cream, according to the processing technology, naringin, N-naphthalene-1-yl-3-hydroxynaphthoic acid-2-formamide and glycine are adopted to improve the mechanical property of the clothing leather; sorbitol, 2-bromine-2-nitro-1,3-propyl alcohol, pyridoxine, D-panthenol, oleamide, polyacrylamide and 2,3-dihydrobutanedioic acid are adopted to improve the absorption of small molecule acrylic resin for the leather; sorbitol, mannite, THPC and an aluminate coupling agent are adopted to fix grease and small molecule compounds; and 3-chlorine-2-hydroxypropyl trimethyl ammonium chloride, polymine, alum, titanium dioxide and talcum powder are adopted to avoid the oil cream and absorb the small molecule compounds.

Description

technical field [0001] The invention relates to an environment-friendly garment leather processing technology, in particular to an environment-friendly sheepskin garment leather processing technology with low oil frost and low odor. Background technique [0002] Tanning is an important step in the process of turning raw hide into leather. The quality of the tanning process directly affects the physical and chemical properties of the finished leather, and has an important relationship with the value of the finished leather. The main tanning agent currently used is trivalent chromium salt. Trivalent chromium salt tanning agent has the advantages of washing resistance, storage resistance, and good moisture and heat resistance. However, the global chromium resources are limited, and chromium is a heavy metal. The waste liquid and dander produced when using it to tan raw hides inevitably contain trivalent chromium. These chromium-containing wastes will inevitably cause damage to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C3/28C14C3/04C14C3/08C14C9/02C14C11/00
CPCC14C3/04C14C3/08C14C3/28C14C9/02C14C11/00
Inventor 姜勇
Owner 绅邦服饰有限公司
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