Method of processing sericin conteining natural silk fiber

A silk fiber and silk technology, which is applied in the chemical post-processing of fibers, fiber processing, textiles and papermaking, etc., can solve the problems of sodium metasilicate crystal dust, long production cycle, and poor product whiteness. The effect of industrial production, good product whiteness and simple process

Inactive Publication Date: 2006-06-14
杨朝友
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Problems solved by technology

At present, only a small number of manufacturers use cocoon silk for curing, but the current curing process has disadvantages such as unenvironmental protection, poor product whiteness, excessive aldehyde content or excessive sodium metasilicate crystal dust.
For example, the method disclosed in Chinese patent 955111290.2 "Technical method for making high-elastic silk by denaturing cocoon silk" uses cocoon clothing as raw material to change the properties of sericin, eliminate residual odor, and enhance elasticity; The high-elastic cocoon clothing, the aldehyde content of the product exceeds the standard, and cannot meet the national standard of less than 150PPM for the formaldehyde content of the fiber used for wadding; another example is the "process of cocoon clothing silk solid glue softening to make silk spinning refined product" disclosed in Chinese patent 200410022061.4 "method", which is also a sericin solidification and softening technology using cocoon silk as raw material, not only has the problem of long production cycle, it takes 2 to 3 days; moreover, water glass (sodium metasilicate) is used in its production, After drying, its crystalline dust is as large as 5%-8%, which is much higher than the national standard of less than 2% dust rate of fiber for wadding
Because the sodium metasilicate crystalline dust is alkaline, it is easy to be allergic to the human body after inhalation, and it will cause damage to the human lungs

Method used

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  • Method of processing sericin conteining natural silk fiber

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Embodiment 1

[0017] Embodiment 1: as figure 1 Shown, the method for processing silk fiber containing sericin, the main steps are as follows:

[0018] 1. Remove impurities: remove impurities such as grass stalks and leaves in silk;

[0019] 2. Swelling: Prepare a sulfuric acid solution with a PH value of 2 to 3, weigh 100 kg of silk and put it into 600 kg of the acid solution, put the two into the ultrasonic swelling pool, start the ultrasonic generator with a frequency of 28KHZ; swell for 0.5 hours After dehydration, the dehydration liquid flows back into the ultrasonic swelling tank and can be reused;

[0020] 3. Glue fixation: put the above-mentioned dehydrated silk into a mixture of sulfuric acid with a pH value of 1 and 6% formaldehyde solution, during which compressed air is introduced into the bottom of the pool, so that bubbles are continuously generated in the pool, and dehydrated after soaking for 3 hours ; The dehydration liquid flows back into the solid glue tank for reuse;

...

Embodiment 2

[0025] Embodiment 2: the method for processing silk fiber containing sericin, comprises the steps:

[0026] 1. Removal of impurities: remove impurities such as grass stalks and leaves in mulberry silk;

[0027] 2. Swelling: prepare sulfuric acid with a PH value of 3, weigh 100 kg of mulberry silk, add acid solution according to the ratio of silk weight 1:8, put the two into the ultrasonic swelling pool, start the ultrasonic generator with a frequency of 22KHZ; swell for 0.5 hours After dehydration, the dehydration liquid flows back into the ultrasonic swelling tank and can be reused;

[0028] 3. Glue fixing: Put the dehydrated silk into the mixed solution of sulfuric acid with a pH value of 1 and 5% glutaraldehyde solution, soak for 6 hours and then dehydrate, and the dehydration liquid flows back into the glue fixing pool for reuse;

[0029] 4. Removal of aldehyde groups: put the above-mentioned dehydrated silk into 12% hydrogen peroxide, and oxidize it for 5 hours, so that ...

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Abstract

The invention discloses a method for processing sericin fiber containing silk. It includes rouging, swelling, solidifying sericin, removing aldehyde group, synthesizing, and drying. Because of using acid liquor, aldehyde group, alkali liquor, and hydrogen peroxide as the main material, the cost is low; it is no pollution. The processed product is accorded with the country standard. The technique is simple, and easy to be industrialization produced. The used acid liquor and solidifying sericin can be reclaimed. The dehydrating aldehyde group solution is discharged after treatment. Thus the production technique is accorded with the environmental protection demand.

Description

technical field [0001] The invention relates to a method for processing silk fibers containing sericin from mulberry silk, pestle silk, castor silk and cocoon clothing thereof, which belongs to the silk spinning technology. Background technique [0002] Silk is composed of tow and sericin. Sericin is a water-soluble protein that is easily soluble in water. It pollutes the environment during processing. After drying, the residual sericin will stick to form hard cake silk, which has a peculiar smell and is not conducive to post-processing. . Therefore, in actual production, sericin in silk is mostly removed in silk processing. At present, only a small number of manufacturers use cocoon silk for curing, but the current curing process has disadvantages such as unenvironmental protection, poor product whiteness, excessive aldehyde content or excessive sodium metasilicate crystal dust. For example, the method disclosed in Chinese patent 955111290.2 "Technical method for making h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C3/00
Inventor 杨朝友
Owner 杨朝友
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