Preparation method of bacteriostatic softening agent for aged hard and dry leather

A leather, dry and hard technology, applied in the field of preparation of bacteriostatic and softening agents, can solve the problems of reduced bacteriostatic effect, restoration of hand feel, color and luster performance, inability to permanently prevent mildew, etc., to increase antibacterial properties and restore good hand feeling. , strong antibacterial effect

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, during the long-term use of leather products, the antibacterial effect gradually decreases, and it cannot permanently prevent mildew
However, the existing antibacterial agents fo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Embodiment 1: a kind of preparation method of antibacterial softening agent for aging dry hard leather, comprising the following steps:

[0015] 1) The lanolin was heated in a water bath while stirring in an airtight container, the time was 1.5h, and the temperature was 60°C;

[0016] 2) During the heating and stirring process of lanolin, gradually add phosphorus pentoxide powder in an amount of 5% of the mass of lanolin. The amount is the same, and the addition time interval is 10min;

[0017] 3) After the above heating and stirring process is completed, the mixed liquid is titrated to neutrality with a sodium hydroxide solution with a mass fraction of 30%, and then the mixed liquid is vacuum-dried to obtain phosphorylated modified lanolin;

[0018] 4) compound the above-mentioned phosphorylated modified lanolin with Tween-80, 2-octyl-4-isothiazolin-3-one, tea saponin, ethanol and deionized water, in a water bath of 50° C. Carry out stirring and emulsification to obt...

Example Embodiment

[0019] Embodiment 2: a kind of preparation method of antibacterial softening agent for aging dry hard leather, comprising the following steps:

[0020] 1) The lanolin was heated in a water bath while stirring in an airtight container for 2.5h and the temperature was 70°C;

[0021] 2) During the heating and stirring process of lanolin, gradually add phosphorus pentoxide powder with an amount of 3% of the mass of lanolin. The addition method is to add it in 3 batches within the first 30 minutes of lanolin heating and stirring, adding phosphorus pentoxide each time. The amount is the same, and the addition time interval is 10min;

[0022] 3) After the above heating and stirring process is completed, the mixed liquid is titrated to neutrality with a sodium hydroxide solution with a mass fraction of 30%, and then the mixed liquid is vacuum-dried to obtain phosphorylated modified lanolin;

[0023] 4) compound the above-mentioned phosphorylated modified lanolin with Tween-80, 2-octy...

Example Embodiment

[0024] Embodiment 3: a kind of preparation method of antibacterial softening agent for aging dry hard leather, comprising the following steps:

[0025] 1) The lanolin was heated in a water bath while stirring in an airtight container, the time was 3.5h, and the temperature was 50°C;

[0026] 2) During the heating and stirring process of lanolin, gradually add phosphorus pentoxide powder in an amount of 4% of the mass of lanolin. The amount is the same, and the addition time interval is 10min;

[0027] 3) After the above heating and stirring process is completed, the mixed liquid is titrated to neutrality with a sodium hydroxide solution with a mass fraction of 30%, and then the mixed liquid is vacuum-dried to obtain phosphorylated modified lanolin;

[0028] 4) compound the above-mentioned phosphorylated modified lanolin with Tween-80, 2-octyl-4-isothiazolin-3-one, tea saponin, ethanol and deionized water, in a water bath of 50° C. Carry out stirring and emulsification to obt...

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PUM

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Abstract

The invention relates to a preparation method of a bacteriostatic softening agent for aged hard and dry leather. The preparation method specifically comprises the following steps: adding phosphorus pentoxide into wool fat, and heating and stirring to modify; then, titrating to neutral by sodium hydroxide liquor and drying to obtain phosphorylated modified wool fat; and finally compounding wool fat with tween-80, 2-octyl-4-isothiazolin-3-one, tea saponins, ethanol and deionized water to prepare a bacteriostatic softening agent product. The preparation method provided by the invention has the advantages of multiple functions, remarkable effect, harmlessness and the like.

Description

technical field [0001] The invention relates to a preparation method of an antibacterial softening agent, in particular to a preparation method of an antibacterial softening agent for aged dry hard leather. Background technique [0002] As a processed product of leather collagen protein, the ingredients such as oil and sugar used in the processing process are a good source of nutrition for the growth of mold. Therefore, during the use and storage of leather, with the loss of oil, on the one hand, the leather will age and become hard, and on the other hand, the leather products are prone to mildew, which seriously affects the appearance and performance of leather products. , 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 agent for leather is mainly used in the production process of leather tanning and fatliquoring. However, during the long-term use of leathe...

Claims

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Application Information

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IPC IPC(8): C14C9/00
Inventor 谢军王庆彭志勤
Owner ZHEJIANG SCI-TECH UNIV
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