Cationic wax emulsion for leather manufacturing procedure and manufacturing method

A processing process and cationic wax technology, applied in leather surface treatment, small raw hide/big raw hide/leather/fur treatment, small raw hide/large raw hide/leather skin/fur chemical treatment, etc. Problems such as poor emulsification and few varieties can achieve the effect of preventing excessive penetration of materials, good dispersibility, and increasing wetting feeling

Inactive Publication Date: 2009-11-25
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic research and development of wax emulsions, especially cationic wax emulsions, has just started. The existing product varieties are few, and most of them have shortcomings such as easy delamination, poor water emulsification, and unremarkable performance characteristics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]In a three-necked flask equipped with a stirrer and a condenser, add 18.0g of carnauba wax, 2.0g of OP wax, 0.2g of simethicone, 2.0g of cetyl alcohol and 0.2g of stearic acid, start stirring and turn on condensed water, add 2.0g fatty alcohol polyoxyethylene (3) ether and 4.4g Span 60 two hydrophilic emulsifiers, start timing when the temperature is raised to 105°C, and emulsify (stir) at 105°C for 30min. Add 1.2g of fatty alcohol polyoxyethylene (25) ether and 9.0g of Tween 60 two hydrophilic emulsifiers and 0.2g of 1631 cationic emulsifier, emulsify (stir) at 105°C for 45min, and then divide the deionized water above 80°C into 5 Each addition, the mass of deionized water added each time is 59.0g, after each addition of deionized water, emulsify (stir) at 105°C for 15min, then cool down to below 35°C, and continue to emulsify (stirrer) for 30min to obtain cationic wax The finished emulsion is a milky white emulsion with blue light in appearance, and the active matter c...

Embodiment 2

[0039] In a three-necked flask equipped with a stirrer and a condenser, add 36.0g carnauba wax, 4.0g OP wax, 0.4g simethicone oil, 4.0g cetyl alcohol and 0.5g stearic acid, start stirring and turn on condensed water, add 3.2g fatty alcohol polyoxyethylene (3) ether and 7.2g Span 60 two kinds of hydrophilic emulsifiers, start timing when the temperature is raised to 115°C, and emulsify (stir) at 115°C for 45min. Add 0.8g of fatty alcohol polyoxyethylene (25) ether and 24g of Tween 60 two hydrophilic emulsifiers and 1.6g of 1631 cationic emulsifier, emulsify (stir) at 115°C for 45min, and then divide the deionized water above 80°C into 5 times Adding, the quality of deionized water added each time is 115.0g, after adding deionized water once, emulsify (stir) at 115°C for 15min, then lower the temperature to below 35°C, and continue to emulsify (stirrer) for 30min to obtain a cationic wax emulsion The finished product is a milky white emulsion with blue light in appearance, and t...

Embodiment 3

[0041] In a three-necked flask equipped with a stirrer and a condenser, add 27.0g of carnauba wax, 3.0g of OP wax, 0.3g of simethicone, 2.4g of cetyl alcohol and 0.3g of stearic acid, start stirring and turn on condensed water, add 2.1g fatty alcohol polyoxyethylene (3) ether and 7.2g Span 60 two hydrophilic emulsifiers, start timing when the temperature is raised to 110°C, and emulsify (stir) at 110°C for 30min. Add 1.8g of fatty alcohol polyoxyethylene (25) ether and 12g of Tween 60 two hydrophilic emulsifiers and 1.5g of 1631 cationic emulsifier, emulsify (stir) at 110°C for 30min, and then divide the deionized water above 80°C into 5 times Add, the quality of deionized water added each time is 85.0g, emulsify (stir) at 110°C for 30min after each addition of deionized water, then cool down to below 35°C, and continue to emulsify (stirrer) for 30min to obtain a cationic wax emulsion The finished product is a milky white emulsion with blue light in appearance, and the active ...

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Abstract

The invention provides a cationic wax emulsion for leather manufacturing procedure and manufacturing method thereof. The wax emulsion is preprared by using wax, simethicone, cetanol as oily materials, via dispersing emulsification of two lipophilic emulsifier compound systems of fatty alcohol polyoxyethylene (3) ether and Span 60, and two lipophilic emulsifier compound systems of fatty alcohol polyoxyethylene (25) ether and Tween 60, stearic acid and hexaalkyl trimethyl ammonium chloride cationic surface active agent, then via dispersing emulsification of de-ionized water and reducing temperature. The invention is good in stability, excellent in emulsification, obvious in performance characteristics, which enhances wet and flexibility of leather; when the invention is to improve leather touch feel, addition of 0.8% to 1.5% of materials according weight percentage may bestow rich touch feel of leather.

Description

technical field [0001] The invention belongs to the technical field of leather chemical industry, in particular to a cationic wax emulsion used in leather processing and a preparation method thereof. Background technique [0002] Emulsifying wax is a commonly used finishing aid in leather processing. This type of product is generally made by emulsifying wax under certain conditions with a suitable emulsifier. According to the type of emulsifier used, wax emulsions are often divided into four types: anionic, nonionic, cationic and zwitterionic. Since the surface of the unpainted leather is usually negatively charged, the cationic wax emulsion can quickly combine with the leather surface during the finishing process to form a thin film, which can effectively prevent the excessive penetration of the finishing material from affecting the leather feel, and make the leather reflect the coating. Good layer fastness, elegant and soft hand feeling. Based on the above advantages, ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/06C08K5/00C08K5/06C08K5/103C08J3/05C09D191/06C14C11/00
Inventor 柴玉叶兰云军卢圣遨周建飞邹祥龙
Owner WENZHOU UNIVERSITY
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