Degreasing method for animal hairs
A technology of animal hair and degreaser, applied in degumming and other directions, can solve the problems of poor degreasing effect, easy environmental pollution and high cost, and achieve the effect of in-depth degreasing effect, optimization of degreasing effect, and improvement of degreasing effect.
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Embodiment 1
[0022] The degreasing method of animal hair comprises the following steps: 1) removing the flesh and dust attached to the animal hair; 2) soaking the animal hair in a weak alkaline solution with a compound degreasing agent to perform a degreasing; 3) degreasing the animal hair with hot water; 4) soaking the animal hair with biological enzymes in a weak acid solution for secondary degreasing; 5) rinsing the animal hair with hot water for a second time, and drying to obtain degreased animal hair.
[0023] In step 2), the conditions for one-time degreasing are: the pH=8 of the weakly alkaline solution, the soaking temperature is 65°C, and the soaking time is 60min; the addition of the composite degreasing agent is 1% of the weight of the weakly alkaline solution, It is prepared by mixing sodium fluorosilicate, polyvinyl alcohol and sodium carbonate in a weight ratio of 1:3:8.
[0024] In step 3), the process of one rinse is as follows: first rinse with hot water at 60° C. for 8 m...
Embodiment 2
[0028] The degreasing method of animal hair comprises the following steps: 1) removing the flesh and dust attached to the animal hair; 2) soaking the animal hair in a weak alkaline solution with a compound degreasing agent to perform a degreasing; 3) degreasing the animal hair with hot water; 4) soaking the animal hair with biological enzymes in a weak acid solution for secondary degreasing; 5) rinsing the animal hair with hot water for a second time, and drying to obtain degreased animal hair.
[0029] In step 2), the conditions for primary degreasing are: the pH=9 of the weakly alkaline solution, the soaking temperature is 70°C, and the soaking time is 30min; the addition of the composite degreasing agent is 3% of the weight of the weakly alkaline solution, It is prepared by mixing sodium fluorosilicate, polyvinyl alcohol and sodium carbonate in a weight ratio of 1:5:3.
[0030] In step 3), the process of one rinse is as follows: first rinse with hot water at 65°C for 10 min...
Embodiment 3
[0034] The degreasing method of animal hair comprises the following steps: 1) removing the flesh and dust attached to the animal hair; 2) soaking the animal hair in a weak alkaline solution with a compound degreasing agent to perform a degreasing; 3) degreasing the animal hair with hot water; 4) soaking the animal hair with biological enzymes in a weak acid solution for secondary degreasing; 5) rinsing the animal hair with hot water for a second time, and drying to obtain degreased animal hair.
[0035] In step 2), the conditions for primary degreasing are: the pH=10 of the weakly alkaline solution, the soaking temperature is 60°C, and the soaking time is 50min; the addition of the composite degreasing agent is 5% of the weight of the weakly alkaline solution; It is prepared by mixing sodium fluorosilicate, polyvinyl alcohol and sodium carbonate in a weight ratio of 1:2:5.
[0036] In step 3), the process of one rinse is as follows: first rinse with hot water at 70° C. for 5 m...
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