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Mercerizing fatliquor as well as preparation method and application thereof

A fatliquor and mercerizing technology, applied in the field of mercerizing fatliquor, can solve the problems of not very strong mercerizing feeling, poor skin oil feeling, easy to burn the suede, etc., and achieve good absorption and penetration effect and anti-aging performance. Strong, Inexpensive Effects

Pending Publication Date: 2022-03-15
SHANGHAI GOLD LION CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the fatliquor and mercerized type of fatliquors in the market generally have a weak sense of mercerization, and the oiliness of the leather after fatliquoring is poor. During the process of leather grinding, the suede is prone to scorching and other problems.

Method used

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  • Mercerizing fatliquor as well as preparation method and application thereof
  • Mercerizing fatliquor as well as preparation method and application thereof
  • Mercerizing fatliquor as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The mercerized fatliquor of the present embodiment is prepared in the following manner:

[0025] S1: Add 30g of refined lanolin, 70g of refined lard, 15g of diethanolamine, and 0.2g of sodium methoxide into the reaction kettle, heat up to 130-140°C, and react 4-6 under nitrogen as a protective gas. Hours; then lower the temperature to 80-90°C, add 25g of maleic anhydride, react for 1 hour under vacuum conditions (vacuum degree <-0.06MPa), and lower the temperature to 60-65°C to obtain reaction solution A.

[0026] S2: Preparation of sodium metabisulfite mixed solution: After mixing 25 g of sodium metabisulfite and 145 g of water evenly, add 40 g of sodium hydroxide solution with a mass fraction of 30%, the reaction is an exothermic reaction, and the temperature of the mixed solution is controlled not to exceed 40 ° C, pH 7.5 to 8.5, the reaction solution B was obtained.

[0027] S3: Add liquid B evenly to liquid A, keep the temperature stable at 60-65°C, heat it up to ...

Embodiment 2

[0030] The mercerized fatliquor of the present embodiment is prepared in the following manner:

[0031] S1: Add 50g of refined lanolin, 50g of refined lard, 20g of diethanolamine, and 0.3g of sodium methoxide into the reaction kettle, heat up to 130-140°C, and react 4-6 under nitrogen as a protective gas. Hours; then lower the temperature to 80-90°C, add 25g of maleic anhydride, react for 1 hour under vacuum conditions (vacuum degree <-0.06MPa), and lower the temperature to 60-65°C to obtain reaction solution A.

[0032] S2: Preparation of sodium metabisulfite mixed solution: After mixing 25 g of sodium metabisulfite and 145 g of water evenly, add 40 g of sodium hydroxide solution with a mass fraction of 30%, the reaction is an exothermic reaction, and the temperature of the mixed solution is controlled not to exceed 40 ° C, pH 7.5 to 8.5, the reaction solution B was obtained.

[0033] S3: Add liquid B evenly to liquid A, keep the temperature stable at 60-65°C, heat it up to ...

Embodiment 3

[0036] The mercerized fatliquor of the present embodiment is prepared in the following manner:

[0037] S1: Add 30g of refined lanolin, 70g of refined lard, 15g of diethanolamine, and 0.2g of sodium methoxide into the reaction kettle, heat up to 130-140°C, and react 4-6 under nitrogen as a protective gas. Hours; then lower the temperature to 80-90°C, add 25g of maleic anhydride, react for 1 hour under vacuum conditions (vacuum degree <-0.06MPa), and lower the temperature to 60-65°C to obtain reaction solution A.

[0038] S2: Preparation of sodium metabisulfite mixed solution: After mixing 25 g of sodium metabisulfite and 145 g of water evenly, add 40 g of sodium hydroxide solution with a mass fraction of 30%, the reaction is an exothermic reaction, and the temperature of the mixed solution is controlled not to exceed 40 ° C, pH 7.5 to 8.5, the reaction solution B was obtained.

[0039] S3: Add liquid B evenly to liquid A, keep the temperature stable at 60-65°C, heat it up to ...

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Abstract

The invention discloses a mercerizing fatting agent as well as a preparation method and application thereof, relates to the technical field of leather chemical industry, and solves the problems that in the prior art, a fatting agent is generally not very strong in mercerizing feeling, the greasy feeling of a leather blank after fatting is poor, and a suede is easy to rub in a leather buffing process. The mercerizing fatliquor provided by the invention is prepared from the following components in parts by weight: 30 to 70 parts of refined wool fat, 30 to 70 parts of refined lard, 10 to 20 parts of diethanol amine, 0.2 to 0.3 part of sodium methoxide, 25 to 30 parts of maleic anhydride, 25 to 30 parts of sodium pyrosulfite, 40 to 50 parts of sodium hydroxide solution, 145 to 170 parts of water, 110 to 120 parts of sulfated cattle hoof oil, 50 to 100 parts of sulfated castor oil, 10 to 20 parts of emulsifier, 2 to 4 parts of antioxidant, 10 to 20 parts of ethylene glycol butyl ether and 2 to 4 parts of bactericide. The mercerizing fatliquor has the advantage of good stability, and has the advantages of strong suede mercerizing feeling and easy buffing when being applied to cow split leather or pigskin.

Description

technical field [0001] The invention relates to the technical field of leather chemical industry, in particular to a mercerized fatliquor, a preparation method and an application of the mercerized fatliquor. Background technique [0002] For most suede, mercerization can significantly improve the grade of leather and increase added value. The fleece should have a strong and soft luster like silk, and a smooth feeling like silk. At present, the fatliquor and mercerized type fatliquors in the market generally have a weak sense of mercerization, poor skin oil feeling after fatliquoring, and the suede surface is prone to scorching and other problems during the leather grinding process. Therefore, design a kind of composite fatliquoring agent, make it have stronger mercerizing performance on the two-layer suede surface, stronger light fastness performance and anti-aging performance, can not have bleaching and discoloration situation to occur after fatliquoring, become this field...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C9/02C14B1/46C14B1/50
CPCC14C9/02C14B1/46C14B1/50
Inventor 邹永鹏杨斯盛王丽梁亮
Owner SHANGHAI GOLD LION CHEM CO LTD
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