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Preparation method of antibacterial and antifungal fat-liquoring agent suitable for aged leather

A technology of antibacterial and antifungal and fatliquoring agent, which can be used in leather impregnation, small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather hide/fur chemical treatment, etc., which can solve the disappearance of antibacterial and mildew proof effect and other problems, to achieve the effect of low toxicity of the formula, increase antibacterial properties, and restore a good feel

Active Publication Date: 2014-02-12
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the long-term use of leather products, the antibacterial and antifungal effects gradually disappear
However, the existing bacteriostatic agents for leather products can have certain antibacterial effects on some aged leather products, but they cannot restore the original feel, color and other properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: a kind of preparation method that is applicable to the antibacterial mildew-proof fatliquoring agent of aging leather, comprises the following steps:

[0015] 1) Take a certain amount of soybean oil and heat it in a water bath in a closed apparatus while stirring for 3 hours at a temperature of 60°C;

[0016] 2) During the process of heating and stirring soybean oil, add 20% lactic acid of soybean oil quality and 60% hydrogen peroxide of soybean oil quality, add in 3 times within 60 minutes, and keep the same amount each time;

[0017] 3) After the above treatment is completed, add 5% NaOH solution of soybean oil quality and titrate to neutrality, then dry the product to obtain lactic acid modified soybean oil;

[0018] 4) In parts by weight, mix 30 parts of lactic acid-modified soybean oil with 4 parts of Span-80, 2 parts of 2-octyl-4-isothiazolin-3-one, 2 parts of sodium sulfite, 10 parts of ethanol, 20 parts 1 part of glacial acetic acid and 100 parts ...

Embodiment 2

[0019] Embodiment 2: a kind of preparation method that is applicable to the antibacterial mildew-proof fatliquoring agent of aging leather, comprises the following steps:

[0020] 1) First take a certain amount of soybean oil and heat it in a water bath in a closed apparatus while stirring for 4 hours at a temperature of 50°C;

[0021] 2) During the process of heating and stirring soybean oil, add 20% lactic acid of soybean oil quality and 60% hydrogen peroxide of soybean oil quality, add in 3 times within 60 minutes, and keep the same amount each time;

[0022] 3) After the above treatment is completed, add 5% NaOH solution of soybean oil quality and titrate to neutrality, then dry the product to obtain lactic acid modified soybean oil;

[0023] 4) In parts by weight, mix 40 parts of lactic acid-modified soybean oil with 5 parts of Span-80, 1 part of 2-octyl-4-isothiazolin-3-one, 3 parts of sodium sulfite, 15 parts of ethanol, 10 parts 1 part of glacial acetic acid and 85 pa...

Embodiment 3

[0024] Embodiment 3: a kind of preparation method that is applicable to the antibacterial mildew-proof fatliquoring agent of aging leather, comprises the following steps:

[0025] 1) Take a certain amount of soybean oil and heat it in a water bath in a closed apparatus while stirring for 5 hours at a temperature of 70°C;

[0026] 2) During the process of heating and stirring soybean oil, add 20% lactic acid of soybean oil quality and 60% hydrogen peroxide of soybean oil quality, add in 3 times within 60 minutes, and keep the same amount each time;

[0027] 3) After the above treatment is completed, add 5% NaOH solution of soybean oil quality and titrate to neutrality, then dry the product to obtain lactic acid modified soybean oil;

[0028] 4) In parts by weight, mix 50 parts of lactic acid-modified soybean oil with 3 parts of Span-80, 3 parts of 2-octyl-4-isothiazolin-3-one, 1 part of sodium sulfite, 30 parts of ethanol, 15 parts 1 part of glacial acetic acid and 80 parts of...

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PUM

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Abstract

The invention relates to a preparation method of an antibacterial and antifungal fat-liquoring agent suitable for aged leather. The preparation method comprises the following specific steps: adding lactic acid and hydrogen peroxide into soybean oil, heating and mixing to carry out modification, then carrying out titration on a modified mixture by virtue of a sodium hydroxide solution until the mixture is neutral, and drying the mixture to obtain lactated modified soybean oil; compounding the lactated modified soybean oil, span-80, 2-octyl-4-isothiazoline-3-ketone, sodium sulfite, ethanol, acetic acid and deionized water to prepare an antifungal fat-liquoring agent finally. The preparation method has the advantages of versatility, obvious effect, harmlessness and the like.

Description

technical field [0001] The invention relates to a preparation method of an antibacterial, mildew-proof and fatliquor, in particular to a preparation method of an antibacterial, mildew-proof and fatliquor suitable for aging leather. Background technique [0002] The main component of leather is a network of protein fibers. In addition, the oils, sugars, inorganic salts and other components used in the leather processing process have become a good source of nutrition for the growth of mold. Therefore, during the subsequent use of leather, along with the loss of oil, on the one hand, the leather will age and become dry and hard; In addition, for some leather products that come into contact with human skin, mold spots are also harmful to the human body. [0003] At present, the antibacterial and antifungal agents for leather are mainly used in the production process of leather tanning and fatliquoring. However, as leather products are used for a long time, the antibacterial a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C9/02
Inventor 谢军王庆王秉
Owner ZHEJIANG SCI-TECH UNIV
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