Black dyeing process for tussah silk textiles

A technology of textiles and tussah silk, which is applied in the field of dyeing technology, can solve problems such as easy to be dyed black, and achieve the effects of avoiding brittleness, improving dyeing rate, and improving color clarity and color fastness

Inactive Publication Date: 2015-03-18
QINGDAO SINGAO TEX NEW TECH COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although tussah silk and mulberry silk are both protein fibers, the latter is easy to be dyed black, but the former is not easy to be dyed black and bright

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] (a) Pretreatment: Treat tussah silk textiles with 5-2.0 ml / l hydrochloric acid solution at 90-95°C for 30 min;

[0023] (b) Warm water washing: wash tussah silk textiles with warm water at 40-50°C;

[0024] (c) Washing in cold water: washing tussah silk textiles with clear water;

[0025] (d) Dyeing: Put the tussah silk textiles into the dye solution containing reactive dyes and emerald green dyes, the emerald green dyes account for 5% of the total amount of dyes, the liquor ratio is 1:20, and dye at 80°C for 60 minutes;

[0026] (e) Ammonia washing: Put the tussah silk textiles into a solution containing 2-3ml / l of ammonia, and soak in a warm water bath at 45-50°C for 15-20 min;

[0027] (f) washing: washing tussah silk textiles with clear water;

[0028] (g) Soaping: Soap the tussah silk textiles in a solution containing 2091g / l of detergent and 0.7g / l of sodium carbonate, and the soaping temperature is 80°C and the soaping time is 10min;

[0029] (h) Washing: wash...

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PUM

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Abstract

The invention discloses a black dyeing process for tussah silk textiles. The black dyeing process for the tussah silk textiles comprises the steps of pretreating, washing in warm water, washing in cold water, dyeing, washing in ammonium hydroxide, rinsing, soaping, rinsing, dewatering and drying. During pretreatment, hydrochloric acid can dissolve impurities on tussah silk so that the impurities are suspended in water and the tussah silk is cleaned, and therefore, the hydrochloric acid exerts a brightening function and also improves the dyeing rate. After dyeing, the tussah silk is dipped in ammonium hydroxide, and the acidity of the tussah silk can be neutralized, so that the embrittlement after drying the tussah silk is avoided, the fiber surface dyeing can be removed, and the color definition and the color fastness are improved.

Description

[0001] technical field [0002] The invention belongs to a dyeing process, in particular to a tussah silk textile dyeing process. [0003] Background technique [0004] Although tussah silk and mulberry silk are both protein fibers, the latter is easy to be dyed black, but the former is not easy to be dyed black and bright. According to relevant literature, the sericin content of tussah silk is about 12% to 15% less than that of mulberry silk, and it is distributed in the periphery of silk protein and diffuses into the interior of silk protein. Tussah silk also contains a small amount of tannin, which is chemically combined with sericin or silk protein. When tannin encounters protein or colloid, it coagulates and produces precipitation, which is a kind of insoluble salt. Silk protein also contains pigment inside and outside, and tussah silk contains more calcium oxalate, the solubility of its sericin and impurities in water, acid and alkali solution is worse than that of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/10D06P1/38D06P1/673D06P1/44D06P5/02
Inventor 王玉英
Owner QINGDAO SINGAO TEX NEW TECH COMPOSITE MATERIAL
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