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Method for increasing silk degumming rate

A technology of degumming and degumming rate of silk is applied in the field of degumming, which can solve the problems of low degumming efficiency and high cost, and achieve the effects of good gloss and hand feeling, improving quality and improving whiteness.

Inactive Publication Date: 2017-03-22
广西立盛茧丝绸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a method for improving the degumming rate of silk to solve the problems of low degumming efficiency or high cost in existing silk degumming

Method used

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  • Method for increasing silk degumming rate

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preparation example Construction

[0044] The preparation method of described silk degumming agent, comprises the following steps:

[0045] S11: Mix ammonia water and sodium silicate, heat up to 45-48°C and stir to dissolve, and prepare mixed solution I;

[0046] S12: Add surfactant, penetrant, dispersant, co-solvent to the mixed solution I prepared in step S11, heat to 52-58°C, stir for 18- 26min to prepare the mixed solution II;

[0047] S13: stop the heating and ultrasonic action, add a stabilizer to the mixed solution II prepared in step S12, and stir for 6-8 minutes at a rotation speed of 200-300 r / min to prepare the mixed solution III;

[0048] S14: Adding a regulator and water to the mixed solution III prepared in step S13 to make the pH value 9.2-10.5 to prepare a silk degumming agent;

[0049] S2: Add the silk obtained by filtering in step S1 into a mixed solution of ethanol with a mass concentration of 34%-39% and tartaric acid with a mass concentration of 12%-23%, heat to 74-78°C, keep it for 15-22...

Embodiment 1

[0055] A method for improving silk degumming rate, comprising the following steps:

[0056] S1: Immerse the silk to be treated in the silk degumming agent, heat to 48°C under airtight conditions, stir for 75min at an ultrasonic power of 150W, and a stirring speed of 110r / min, and filter to obtain silk;

[0057] The silk degumming agent, in parts by weight, includes the following raw materials: 130 parts of ammonia water, 60 parts of sodium silicate, 15 parts of surfactant, 3 parts of penetrating agent, 1.6 parts of dispersant, 2.5 parts of regulator, cosolvent 2.4 parts, 1.2 parts of stabilizer;

[0058] The mass concentration of the ammoniacal liquor is 25%;

[0059] The surfactant is polyacrylamide;

[0060] The penetrating agent is potassium alkylbenzenesulfonate;

[0061] Described dispersant is potassium lauryl sulfate;

[0062] The regulator is acetic acid;

[0063] Described cosolvent is sodium salicylate;

[0064] The stabilizer is boron nitride;

[0065] The prep...

Embodiment 2

[0075] A method for improving silk degumming rate, comprising the following steps:

[0076] S1: Immerse the silk to be treated in the silk degumming agent, heat it to 45°C under airtight conditions, stir for 92min at an ultrasonic power of 120W, and a stirring speed of 90r / min, and filter to obtain silk;

[0077] The silk degumming agent, in parts by weight, includes the following raw materials: 104 parts of ammonia water, 42 parts of sodium silicate, 11 parts of surfactant, 1.8 parts of penetrating agent, 1.2 parts of dispersant, 2 parts of regulator, cosolvent 1.8 parts, 0.9 parts of stabilizer;

[0078] The mass concentration of the ammoniacal liquor is 22%;

[0079] The surfactant is polyacrylamide;

[0080] The penetrating agent is potassium alkylbenzenesulfonate;

[0081] Described dispersant is potassium lauryl sulfate;

[0082] The regulator is acetic acid;

[0083] Described cosolvent is sodium salicylate;

[0084] The stabilizer is boron nitride;

[0085] The ...

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Abstract

The invention discloses a method for increasing the silk degumming rate and belongs to the technical field of degumming. The method for increasing the silk degumming rate comprises steps as follows: S1: to-be-treated silk is immersed into a silk degumming agent, heated under the airtight condition, stirred under the ultrasonic wave action and filtered, and silk is obtained; S2: the silk obtained through filtration in S1 is added to an ethanol-tartaric acid mixed solution and cooled to the room temperature after being heated and stirred; S3: the silk treated in S2 is added to a potassium carbonate solution and cooled to the room temperature after being heated and stirred; S4: the silk treated in S3 is washed clean with deionized water, and gum protein is removed; S5: the silk obtained in S4 is dried, and degummed silk is obtained. The silk treated with the silk degumming method has lower silk breakage strength loss and breaking elongation loss, silk gum in the silk before degumming is basically removed, and the whiteness, the glossiness and the dyeing property of the silk are effectively improved.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of degumming, and in particular relates to a method for improving the degumming rate of silk. [0003] 【Background technique】 [0004] Silk is the fiber that solidifies after the silk liquid in the silkworm body is spouted out, and is called cocoon silk. It is composed of two silk proteins (also known as silk fibroin) with a nearly triangular or semi-elliptical cross-section wrapped in sericin, as well as pigments, oil waxes and inorganic substances, which are present in the sericin. Among them, sericin has a certain protective effect on silk fibroin, but if the content is too much, it will affect the luster and feel of silk fibroin and the process of silk fiber processing, while impurities such as oil and wax will bring certain difficulties to post-processing. . Therefore, before dyeing and finishing, most of the sericin, grease, wax and other sundries must be removed to make the silk fiber soft, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C3/02
CPCD01C3/02
Inventor 潘大东农琦林帆卢耀海甘志强
Owner 广西立盛茧丝绸有限公司
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