Method for preparing washable semi-vegetable-tanning sheepskin garment leather

Abstract

A method for preparing washable semi-vegetable-tanning sheepskin garment leather comprises the following steps that (1) tanning is conducted, unhaired pickled skin is subjected to rotation tanning in a drum, then primary fixing treatment is conducted to obtain wet-white leather, and a tanning agent adopted in the tanning process is a TWS chromium-free tanning agent; (2) the tanned wet-white leather is sequentially subjected to horsing and wringing shaving treatment; (3) retanning and dyeing are conducted to obtain colored leather; (4) the retanned and dyed colored leather is sequentially subjected to secondary horsing, stretching and wringing; hang-drying; water spraying, standing, vibration softening, shaving, dust removal, trimming, milling, toggling and polishing to obtain a finished product. The semi-vegetable-tanning sheepskin garment leather obtained through the method has water resistance and is washable.

Description

technical field

[0001] The invention belongs to the technical field of tanning, and in particular relates to a preparation method of washable semi-vegetable tanned sheep clothing leather. Background technique

[0002] Clothes made of leather have the advantages of softness, breathability, wear resistance, high strength, and natural and unique aesthetic feeling, but at the same time, they have the disadvantages of being difficult to clean and maintain, and cannot be washed with water. Leather loses color during washing and becomes stiff after washing and drying. The reason why the leather loses color when washing is that the dye is not fast enough, and the color fastness is not enough. The stiffening after washing is caused by the loss of tanning agent and fatliquoring agent in the washing process. Questions of fastness and how to fix fatliquors and tanning agents. Contents of the invention

[0003] The purpose of the present invention is to provide a kind of preparation ...

Examples

Embodiment 1

[0024] A preparation method of washable semi-vegetable tanned sheep clothing leather, comprising the following steps:

[0025] (1) Tanning, the unhaired pickle hide is tanned in a drum, adding brine, sodium formate, tanning agent, degreasing agent, anti-tear oil, pickling aid and softening enzyme during the tanning process; draining Then add water, anti-tear oil, TWB tanning enhancer, antifungal agent, pickling aid and formic acid for a fixed treatment to obtain wet white leather;

[0026] Described tanning agent is TWS chrome-free tanning agent;

[0027] (2) The tanned wet white hides are processed by horse riding, squeezing and smoothing in turn;

[0028] (3) Retanning and dyeing, add water, degreasing agent, and iron remover to the wet white hide after squeezing and shaving, and then carry out filling treatment, adding water, small molecule acrylic acid, and TARA extract during filling treatment , disperse tannin, FS tannin extract, TWB tanning enhancer, phenolic condensa...

Embodiment 2

[0040] A preparation method of washable semi-vegetable tanned sheep clothing leather, comprising the following steps:

[0041] (1) Tanning, the unhaired pickle hide is tanned in a drum, adding brine, sodium formate, tanning agent, degreasing agent, anti-tear oil, pickling aid and softening enzyme during the tanning process; draining Then add water, anti-tear oil, TWB tanning enhancer, antifungal agent, pickling aid and formic acid for a fixed treatment to obtain wet white leather;

[0042] Described tanning agent is TWS chrome-free tanning agent;

[0043] (2) The tanned wet white hides are processed by horse riding, squeezing and smoothing in turn;

[0044] (3) Retanning and dyeing, add water, degreasing agent, and iron remover to the wet white hide after squeezing and shaving, and then carry out filling treatment, adding water, small molecule acrylic acid, and TARA extract during filling treatment , disperse tannin, FS tannin extract, TWB tanning enhancer, phenolic condensa...

Embodiment 3

[0056] A preparation method of washable semi-vegetable tanned sheep clothing leather, comprising the following steps:

[0057] (1) Tanning, the unhaired pickle hide is tanned in a drum, adding brine, sodium formate, tanning agent, degreasing agent, anti-tear oil, pickling aid and softening enzyme during the tanning process; draining Then add water, anti-tear oil, TWB tanning enhancer, antifungal agent, pickling aid and formic acid for a fixed treatment to obtain wet white leather;

[0058] Described tanning agent is TWS chrome-free tanning agent;

[0059] (2) The tanned wet white hides are processed by horse riding, squeezing and smoothing in turn;

[0060] (3) Retanning and dyeing, add water, degreasing agent, and iron remover to the wet white hide after squeezing and shaving, and then carry out filling treatment, adding water, small molecule acrylic acid, and TARA extract during filling treatment , disperse tannin, FS tannin extract, TWB tanning enhancer, phenolic condensa...

technical field

[0001] The invention belongs to the technical field of tanning, and in particular relates to a preparation method of washable semi-vegetable tanned sheep clothing leather. Background technique

[0002] Clothes made of leather have the advantages of softness, breathability, wear resistance, high strength, and natural and unique aesthetic feeling, but at the same time, they have the disadvantages of being difficult to clean and maintain, and cannot be washed with water. Leather loses color during washing and becomes stiff after washing and drying. The reason why the leather loses color when washing is that the dye is not fast enough, and the color fastness is not enough. The stiffening after washing is caused by the loss of tanning agent and fatliquoring agent in the washing process. Questions of fastness and how to fix fatliquors and tanning agents. Contents of the invention

[0003] The purpose of the present invention is to provide a kind of preparation ...

Examples

Embodiment 1

[0024] A preparation method of washable semi-vegetable tanned sheep clothing leather, comprising the following steps:

[0025] (1) Tanning, the unhaired pickle hide is tanned in a drum, adding brine, sodium formate, tanning agent, degreasing agent, anti-tear oil, pickling aid and softening enzyme during the tanning process; draining Then add water, anti-tear oil, TWB tanning enhancer, antifungal agent, pickling aid and formic acid for a fixed treatment to obtain wet white leather;

[0026] Described tanning agent is TWS chrome-free tanning agent;

[0027] (2) The tanned wet white hides are processed by horse riding, squeezing and smoothing in turn;

[0028] (3) Retanning and dyeing, add water, degreasing agent, and iron remover to the wet white hide after squeezing and shaving, and then carry out filling treatment, adding water, small molecule acrylic acid, and TARA extract during filling treatment , disperse tannin, FS tannin extract, TWB tanning enhancer, phenolic condensa...

Embodiment 2

[0040] A preparation method of washable semi-vegetable tanned sheep clothing leather, comprising the following steps:

[0041] (1) Tanning, the unhaired pickle hide is tanned in a drum, adding brine, sodium formate, tanning agent, degreasing agent, anti-tear oil, pickling aid and softening enzyme during the tanning process; draining Then add water, anti-tear oil, TWB tanning enhancer, antifungal agent, pickling aid and formic acid for a fixed treatment to obtain wet white leather;

[0042] Described tanning agent is TWS chrome-free tanning agent;

[0043] (2) The tanned wet white hides are processed by horse riding, squeezing and smoothing in turn;

[0044] (3) Retanning and dyeing, add water, degreasing agent, and iron remover to the wet white hide after squeezing and shaving, and then carry out filling treatment, adding water, small molecule acrylic acid, and TARA extract during filling treatment , disperse tannin, FS tannin extract, TWB tanning enhancer, phenolic condensa...

Embodiment 3

[0056] A preparation method of washable semi-vegetable tanned sheep clothing leather, comprising the following steps:

[0057] (1) Tanning, the unhaired pickle hide is tanned in a drum, adding brine, sodium formate, tanning agent, degreasing agent, anti-tear oil, pickling aid and softening enzyme during the tanning process; draining Then add water, anti-tear oil, TWB tanning enhancer, antifungal agent, pickling aid and formic acid for a fixed treatment to obtain wet white leather;

[0058] Described tanning agent is TWS chrome-free tanning agent;

[0059] (2) The tanned wet white hides are processed by horse riding, squeezing and smoothing in turn;

[0060] (3) Retanning and dyeing, add water, degreasing agent, and iron remover to the wet white hide after squeezing and shaving, and then carry out filling treatment, adding water, small molecule acrylic acid, and TARA extract during filling treatment , disperse tannin, FS tannin extract, TWB tanning enhancer, phenolic condensa...