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A kind of preparation method of antibacterial and deodorizing leather

A technology for leather and leather materials, applied in the field of antibacterial and deodorizing leather preparation, which can solve the problems of poor air permeability, bacteria and fungus breeding and reproduction, etc.

Active Publication Date: 2020-07-21
黄方盾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a high temperature and high humidity environment is particularly prone to the growth and reproduction of bacteria and fungi
[0004] The leather shoes that people wear are made of leather and outsoles, and the part that is in direct contact with the feet is leather. Natural leather has good water absorption and air permeability, but people add finishing materials to the leather surface to make it more beautiful. , resin, wax and other chemicals, the air permeability becomes very poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The invention provides a kind of preparation method of antibacterial deodorization leather, comprises the following steps:

[0028] (1) After degreasing and neutralizing the wet blue leather successively, a neutral base material is obtained;

[0029] (2) Rotate and mix the neutral base material and the first dyeing pretreatment agent obtained in the step (1) in a drum to obtain the first modified leather; the first dyeing pretreatment agent includes Tannin extract, wattle bark extract and leveling agent;

[0030] (3) Put the first modified leather obtained in step (2) and the second pre-dyeing treatment agent in a rotating drum and then leave to stand to obtain the second modified leather; the second dyed pre-treatment agent Treatments include quebracho extract and wattle bark extract;

[0031] (4) rotating and mixing the second modified leather material obtained in the step (3) with ammonia water, dyestuff and titanium dioxide powder in a drum to obtain dyed leather ...

Embodiment 1

[0058] Weighing: Weigh the raw material wet blue hide, and take the weight of the wet blue hide as 100wt.%. The mass involved in the subsequent steps is based on this.

[0059] Degreasing: Put the wet blue hide into the drum, add 45°C water, degreasing agent and formic acid, and then rotate for 60 minutes, then wash with water to remove the residual formic acid and degreasing agent on the surface of the wet blue hide; Liquid removal; Wherein, the wet blue leather mass taken by weighing is 100wt.%, the addition of water is 100wt.%, the addition of degreasing agent is 0.5wt.%, and the addition of formic acid is 0.2wt.%.

[0060] Neutralization: At room temperature, add 100 wt.% water at 30°C to the drum with the degreased wet-blue hides, then add 3% baking soda and 3% ammonium bicarbonate and continue to rotate for 95 minutes; The pH value of the liquid in the drum is measured at 6.5, and finally washed with water, and the liquid in the drum is discharged after washing.

[0061...

Embodiment 2

[0068] Prepare antibacterial and deodorant leather according to the method of Example 1, the difference is that in the dyeing process, the particle size of titanium dioxide powder is 200-300nm, and the dosage is 0.5%; A mixture of essence and polypropylene resin nanoparticles (particle size <1 μm) at a ratio of 1:2, the anionic deodorant is nano-scale ferrous chloride, the cross-linking agent is methacrylic acid, and the silicone softener contains dioxide Fatty alcohol sulfate derivatives of silicon; and the amount of the deodorant resin mixture is 0.06%, and the amount of the anionic deodorant is 1.6%.

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PUM

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Abstract

The invention provides a preparation method of antibacterial deodorized leather. The preparation method comprises the steps that wet blue leather is subjected to degreasing and neutralizing treatmentin sequence and then is subjected to rotation blending with quebracho extract, mimosa extract and a dye leveling agent in a rotary drum to obtain first modified leather; the first modified leather, the quebracho extract and the mimosa extract are subjected to rotation blending and then still standing in the rotary drum; in the dyeing process, titanium dioxide is added so as to improve the antibacterial property, and then fat liquoring softening and solid acid treatment are conducted to obtain primary leather; the obtained primary leather, water, a deodorized resin mixed material, a negative ion deodorant, an interlinking agent, an organic silicon softener and methane acid are subjected to rotation blending in the rotary drum to obtain the antibacterial deodorized leather. The results of the embodiment of the invention show that the prepared antibacterial deodorized leather has the antibacterial deodorization function, and the comfort degree is improved.

Description

technical field [0001] The invention relates to the technical field of leather material preparation, in particular to a preparation method of antibacterial and deodorizing leather. Background technique [0002] More than 80% of people will have mild or severe foot odor. There are many reasons for foot odor. The main causes are: [0003] Humid environments and stuffy enclosed spaces. The soles of the feet emit a lot of sweat every day. When the shoes are worn tightly and the ventilation is not good, there will be a lot of moisture in the shoes, and the temperature in the shoe cavity will also rise. Such a high temperature and high humidity environment is particularly prone to the growth and reproduction of bacteria and fungi. [0004] The leather shoes that people wear are made of leather and outsoles, and the part that is in direct contact with the feet is leather. Natural leather has good water absorption and air permeability, but people add finishing materials to the lea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C1/08C14C3/28C14C1/00C14C11/00
CPCC14C1/00C14C1/08C14C3/28C14C11/00
Inventor 黄方盾
Owner 黄方盾
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