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Waterproof wear-resistant environment-friendly vegetable tanning method for sole leather

A technology for sole leather and vegetable tanning is applied in the field of waterproof, wear-resistant and environmentally friendly vegetable tanned sole leather, which can solve the problems of inability to meet the production requirements of leather for soles, flatness and wear resistance, and insufficient water resistance of vegetable tanned leather.

Active Publication Date: 2021-06-18
阜新市飞翔皮革制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the water resistance of vegetable tanned leather is insufficient, flat and thin, and not wear-resistant, which cannot meet the production requirements of leather for shoe soles

Method used

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  • Waterproof wear-resistant environment-friendly vegetable tanning method for sole leather
  • Waterproof wear-resistant environment-friendly vegetable tanning method for sole leather

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Experimental program
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Embodiment

[0031] Table 1 is the main process parameters of the waterproof, wear-resistant and environmentally friendly vegetable tanned shoe sole leather method, and the main steps of the waterproof and wear-resistant environmentally friendly vegetable tanned shoe sole leather are as follows:

[0032] (1) Add 20°C water, salt, diethylenetriaminepentaacetic acid (DTPA), N-benzoylphenylhydroxylamine (BPHA), 2-hydroxypropionic acid and halogen-free carbon into the drum according to the amount of the formula Hydrogen solvent-based degreasing agent, rotate for 60 minutes, then drain and wash with water, then add water and acid enzyme at 30°C to the drum according to the formula, rotate for 90 minutes, then add sodium formate and sodium sulfate to adjust the pH to 4.

[0033] (2) Add warm water at 40°C, sodium-based nano-montmorillonite, water-soluble graphene oxide, oxazolidine cotanning agent, FILLER 1462 protein filler into the drum according to the amount of the formula, rotate for 180 min...

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Abstract

The invention belongs to the field of leather production, and particularly relates to a waterproof wear-resistant environment-friendly vegetable tanning method for sole leather, which sequentially comprises the following steps of softening, deironing, pre-tanning, neutralizing, tanning, oiling and post-processing. In the deironing process, diethylenetriaminepentaacetic acid (DTPA) and N-benzoylphenylhydroxylamine (BPHA) are added into a rotary drum, in the pre-tanning process, warm water at the temperature of 35-45 DEG C, sodium-based nano montmorillonite, water-soluble graphene oxide, an oxazolidine auxiliary tanning agent and FILLER 1462 protein filler are added into the rotary drum, and in the oiling process, warm water with the temperature of 35-45 DEG C, the cattle hoof oil, the emulsified beef tallow, the melamine and the cationic oil are added into a rotary drum according to the amount of the formula; The vegetable tanning sole leather process is environment-friendly, excellent in waterproofness and wear-resistant. The target product is excellent in waterproof performance and has the characteristics of environmental protection, wear resistance and the like.

Description

technical field [0001] The invention belongs to the field of leather production, and in particular relates to a method for waterproof, wear-resistant and environment-friendly vegetable tanned shoe sole leather. Background technique [0002] With the development of the times, the demand for leather products in human life is increasing day by day. In the development process of leather tanning process, chrome tanning method still occupies a dominant position because of its advantages of time saving, economy and easy operation, and the leather produced by this method has excellent physical and mechanical properties and sensory properties. However, during the tanning process, the chrome tanning agent cannot be completely absorbed by the collagen fibers of the skin, which causes 20-35% of the chromium in the chrome tanning agent to be discharged with the wastewater, and the chromium will affect the normal growth of fish in water and plants on land , especially hexavalent chromium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C1/08C14C1/00C14C3/08C14C3/04
CPCC14C1/08C14C1/00C14C3/08C14C3/04
Inventor 李友鄂涛李鹏飞李鹏翔梅春明刘琬
Owner 阜新市飞翔皮革制品有限公司
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