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Method for improving color depth and light fastness of natural color silk fibers

A technology of colored silk and color depth, which is applied in fiber treatment, animal fiber, textiles and papermaking, etc. It can solve problems such as poor gloss, low retention of colored substances in silk fibers, and easy-to-sun discoloration, so as to improve color depth , Improve the effect of light fastness level

Inactive Publication Date: 2012-06-20
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Natural colored silk contains sericin, and colored pigments remain in sericin. From a practical point of view, the more sericin is retained, the harder the silk fiber feels and the worse the luster; of course, no sericin is retained at all. , such as using urea and thiourea pre-swelling and steaming methods, the retention of colored substances in silk fibers is low, and the practical value is not ideal
[0009] In addition, the light fastness of natural colored silk fibers is also relatively poor, and the light fastness is only grade 1, which is very easy to change color by sunlight

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Natural colored silk fiber cheese: put 100Kg silk fiber cheese into the cheese intermittent steaming machine, and treat it at 120°C for 60min; Add 1Kg glutaraldehyde and 0.2Kg acetic acid at low temperature, run for 20min, drain water, wash with water at 40°C for 10min; then add 10Kg methacrylamide, 0.3Kg ammonium persulfate and 0.2Kg acetic acid at 70°C, run for 100min, drain water , wash with water at 40°C for 10 minutes; then add 3Kg silk scouring agent AR-617 at 50°C, heat up to 110°C, run for 45 minutes, drain water, and then wash with hot water and cold water at 80-90°C for 10 minutes respectively; Finally, add 45Kg of deepening emulsion at 40°C and run for 10 minutes, wherein the deepening emulsion is a mixed emulsion of amino silicone, ternary copolymerization silicone and emulsifier, and the mass ratio of the three is: amino silicone: terpolymerization organic Silicon: emulsifier = 80:5:20. After the processing is completed, it is taken out of the cylinder, de...

Embodiment 2

[0029]Natural colored silk fiber cheese: put 100Kg silk fiber cheese into the cheese intermittent steaming machine, and treat it at 125°C for 35min; Add 0.5Kg glutaraldehyde and 0.2Kg acetic acid at low temperature, run for 30min, drain water, wash with water at 40°C for 10min; then add 20Kg methacrylamide, 0.9Kg potassium persulfate and 0.2Kg acetic acid at 80°C, run for 120min, Turn on the water, wash with water at 40°C for 10 minutes; then add 4.5Kg silk scouring agent AR-617 at 50°C, raise the temperature to 110°C, run for 50 minutes, turn on the water, and then wash with hot water and cold water at 80-90°C respectively 10min; finally, add 35Kg darkening emulsion at 40°C and run for 10min, wherein the darkening emulsion is a mixed emulsion of amino silicone, ternary copolymerized silicone and emulsifier, and the mass ratio of the three is: amino silicone: ternary Copolymerized silicone: emulsifier = 80:10:12. After the processing is completed, it is taken out of the cylin...

Embodiment 3

[0031] The degummed natural colored silk fiber that will be processed by the technical scheme of embodiment one and two, on the UlstrascanXE computer color measuring instrument of U.S. HunterLab company, adopt D 65 Light source, 10° field of view, measure the K / S value of the fiber; on the Atlas XenoTest Alpha light fastness testing machine of SDL-Atalas Company in the United States, test the light fastness according to the AATCC TM16-2003 method, and use GB250-1995 to evaluate the color change Grading is done using the gray scale. The comparison results with untreated silk fibers are shown in Table 1.

[0032] Table 1

[0033] sample K / S value Light fastness (grade) Embodiment one 1.878 3 Embodiment one 1.962 3 Untreated natural colored silk fiber (raw silk) 2.312 1 Fully degummed natural colored silk fiber 0.275 2

[0034] As can be seen from Table 1, the natural colored silk fiber processed by the above method has a color depth...

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PUM

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Abstract

The invention belongs to the technical field of textile processing, and relates to a method for improving color depth and light fastness of natural color silk fibers, which includes steps: subjecting the natural color silk fibers to steam treatment, interlinking treatment, washing, graft treatment, washing, degumming, washing, washing, deepening and drying to obtain finished products. The naturalcolor silk fibers processed according to the technical scheme has the color depth 6-7 times of that of the natural color silk fibers conventionally scoured and degummed, and a K / S (color strength) value is increased by 582-613%, and the K / S value of the natural color silk fibers is reduced by 15-19% as compared with that of untreated natural color silk fibers. The color depth of the natural colorsilk fibers is improved evidently, and the light fastness level of the natural color silk fibers is also improved.

Description

technical field [0001] The invention belongs to the technical field of textile processing, and relates to a method for improving the color depth and light fastness of natural colored silk fibers. Background technique [0002] Natural colored silk fiber is a new silk variety developed in recent years, mainly including yellow-red, green and other varieties. At present, the biggest technical problem of natural colored silk or cocoon silk is the pre-treatment technology for color retention of natural colored cocoons, and the second is the serious discoloration of light fastness or light resistance. [0003] Pigments such as carotenoids and lutein in natural colored silk fibers mainly exist in the sericin layer. When the conventional silk refining process is used, such as sodium carbonate, the silk fiber is almost white when the degumming rate is 21.5% ( See: Jiang Xinjian, Hu Zhengyu, Ning Wane, etc., Effects of Scouring on the Properties of Natural Yellow Silkworm Cocoons in G...

Claims

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Application Information

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IPC IPC(8): D06M13/123D06M14/06D06M15/643D01C3/02D06B1/00D06M101/10
Inventor 李鹏朱亚伟
Owner SUZHOU UNIV
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