Antibacterial retanning agent and preparation method thereof

A technology of retanning agent and triclosan, applied in the field of antibacterial retanning agent and its preparation, can solve the problems of intolerance to migration, short action time of antifungal agent, easy to mold, etc., and achieves easy operation, easy amino content and molecular weight. Modulating, low toxicity effects

Active Publication Date: 2017-02-22
QI HE LI HOU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to prepare an antibacterial retanning agent for leather, fur and their products, so as to solve the problems that leather, fur and their products are prone to mildew...

Method used

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  • Antibacterial retanning agent and preparation method thereof
  • Antibacterial retanning agent and preparation method thereof
  • Antibacterial retanning agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of antibacterial retanning agent, molecular structural formula is as follows:

[0042]

[0043] The preparation steps are as follows:

[0044] (1) Get 100g mass concentration and add the poly(acrylic acid-vinylamine) copolymer aqueous solution of 35% into a four-necked flask with a stirring device, adjust its pH to 8.5-9 with 0.1mol / L sodium hydroxide solution ;

[0045] (2) Preparation of modified triclosan

[0046] Dissolve triclosan in carbon tetrachloride solution, and sulfonate with concentrated sulfuric acid at 4 degrees Celsius for 2 hours. The molar ratio of triclosan to concentrated sulfuric acid is 1:1.1. After separation, neutralization and purification, triclosan is obtained. sulfonate; then dissolve triclosan sulfonate in distilled water, add cyanuric chloride, the molar ratio of triclosan sulfonate to cyanuric chloride is 1:1, react in an ice-water bath for 1h, and finally separate , sodium hydroxide solution to neutralize and purify to obta...

Embodiment 2

[0049] A kind of antibacterial retanning agent, molecular structural formula is as follows:

[0050]

[0051] The preparation steps are as follows:

[0052] (1) Get 100g mass concentration and add the poly(acrylic acid-vinylamine) copolymer aqueous solution of 15% in the four-neck flask with stirring device, adjust its pH to 7.5-8 with 0.05mol / L sodium hydroxide solution ;

[0053](2) Preparation of modified triclosan

[0054] Dissolve triclosan in carbon tetrachloride solution, and sulfonate with concentrated sulfuric acid at 4 degrees Celsius for 2 hours. The molar ratio of triclosan to concentrated sulfuric acid is 1:1.1. After separation, neutralization and purification, triclosan is obtained. sulfonate; then dissolve triclosan sulfonate in distilled water, add cyanuric chloride, the molar ratio of triclosan sulfonate to cyanuric chloride is 1:1, react in an ice-water bath for 1h, and finally separate , sodium hydroxide solution to neutralize and purify to obtain m...

Embodiment 3

[0057] A kind of antibacterial retanning agent, molecular structural formula is as follows:

[0058]

[0059] The preparation steps are as follows:

[0060] A kind of preparation method of antibacterial retanning agent, comprises steps as follows:

[0061] (1) Get 100g mass concentration and be that the poly(acrylic acid-vinylamine) copolymer aqueous solution of 50% is added in the four-neck flask with stirring device, its pH is adjusted to 9.5-10 with the sodium hydroxide solution of 0.15mol / L ;

[0062] (2) Preparation of modified triclosan

[0063] Dissolve triclosan in carbon tetrachloride solution, and sulfonate with concentrated sulfuric acid at 4 degrees Celsius for 2 hours. The molar ratio of triclosan to concentrated sulfuric acid is 1:2. After separation, neutralization and purification, triclosan is obtained. sulfonate; then dissolve triclosan sulfonate in distilled water, add cyanuric chloride, the molar ratio of triclosan sulfonate to cyanuric chloride is ...

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Abstract

The invention relates to an antibacterial retanning agent and a preparation method thereof. The preparation method comprises the following steps: (1) adding poly(acrylic acid-vinylamine) copolymer in water to obtain a poly(acrylic acid-vinylamine) copolymer aqueous solution, and adjusting pH with an alkali solution; and (2) adding modified triclosan, and reacting to obtain the antibacterial retanning agent. The prepared antibacterial retanning agent is used in leather, and mildew-proof and antibacterial effects of the leather and products thereof can be improved. The obtained leather and fur are long in mildew-proof action time and is migration-resistant. The antibacterial retanning agent has long-acting antibacterial and bacteriostatic effects.

Description

technical field [0001] The invention relates to an antibacterial retanning agent and a preparation method thereof, belonging to the technical field of leather chemical industry. Background technique [0002] Leather products have become the necessities of human life, with large consumption and wide application. However, since the raw leather is composed of collagen, and a large amount of animal and vegetable oil or its modified products are added during the processing, it provides a rich source of nutrition for the growth and reproduction of microorganisms; at the same time, the natural multi-porous structure of the leather is easy to absorb air Moisture is a natural hotbed for microbial reproduction. Therefore, leather products such as leather shoes, leather clothes, and sofas are prone to mildew during use, which greatly affects the performance of leather and its products. Therefore mildew resistance is very important in the leather industry. [0003] At present, there ...

Claims

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Application Information

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IPC IPC(8): C14C3/26C08F8/34
CPCC08F8/34C14C3/26C08F220/06
Inventor 靳丽强王玉路
Owner QI HE LI HOU CHEM CO LTD
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