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Method for dyeing green silk fabrics by sodium copper chlorophyllin

A chlorophyll copper sodium salt, dyeing method technology, applied in the direction of dyeing method, textile and paper making, etc., can solve the problems of poor green brightness, complicated overdyeing process, long dyeing time and the like

Inactive Publication Date: 2011-03-02
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yellow and blue plant dyes can be used to dye green fabrics through the over-dyeing method, but the over-dyeing process is complicated, the dyeing time is long, and the green brightness of the dyed fabrics is poor.
Chlorophyll is a green natural pigment widely present in plants, but it is very unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Prepare a 1g / L anhydrous sodium carbonate solution with distilled water, add undegummed silk fabrics into the solution with a bath ratio of 1:50, boil in a constant temperature water bath at 100°C for 30min, then deionize with 95°C deionized water, 60°C ℃ deionized water for several times, and finally rinse with cold water for several times until the residual lye, salt ions and sericin on the silk fabric are completely removed. Copper chlorophyllin sodium salt dye solution is used to dye the silk fabric after degumming, liquor ratio 1:50, copper chlorophyllin sodium salt dyestuff consumption 3% (o.w.f) (dye consumption is the percentage of the weight of copper chlorophyllin sodium salt dyestuff in silk fabric weight) , Dyeing temperature 70 ℃, heat preservation dyeing 120min. The dyed silk fabric is washed with clear water until no floating color is washed out.

Embodiment 2

[0013] Use distilled water to prepare 0.5g / L anhydrous sodium carbonate solution, add undegummed silk fabrics into the solution with a bath ratio of 1:50, boil in a constant temperature water bath at 100°C for 60min, and then use 95°C deionized water, Wash with deionized water at 60°C, and finally rinse with cold water for several times until the residual lye, salt ions and sericin on the silk fabric are completely removed. Copper chlorophyllin sodium salt dye solution is used to dye the silk fabric after degumming, bath ratio 1: 30, copper chlorophyllin sodium salt dye consumption 2% (o.w.f) (the dyestuff consumption is the percentage of the weight of copper chlorophyllin sodium salt dyestuff in silk fabric weight) , Dyeing temperature 80 ℃, heat preservation dyeing 90min. The dyed silk fabric is washed with clear water until no floating color is washed out.

[0014] Dyed silk fabrics can be made into healthy, environmentally friendly and brightly colored high-end underwear ...

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Abstract

The invention relates to a method for dyeing green silk fabrics by sodium copper chlorophyllin. The dyeing method is a direct dyeing method without using mordant, and the parameters of the dyeing process are as follows: the bath ratio is 1:30-50, the pH value of a dye bath is 7 to 9, the dyeing temperature is 70 to 90 DEG C, the heat-insulating dyeing time is 60 to 120min, and the weight of the sodium copper chlorophyllin accounts for 1 to 3 percent of that of the silk fabric to be dyed; NaCl additives can simultaneously be added into the dye bath, and the application amount thereof is 2-8g / L, the NaCl additives and the sodium copper chlorophyllin can be simultaneously added into the dye bath for one time or for times. The sodium copper chlorophyllin in the invention is safe and non-toxic, and is widely used in food colourants; and the green silk fabrics dyed by the sodium copper chlorophyllin are vivid and bright, and can be used in the development of high-grade pure silk underwear.

Description

technical field [0001] The invention relates to a method for dyeing green silk fabrics with natural dyes, in particular to a method for dyeing green silk fabrics with sodium copper chlorophyllin, which belongs to the field of silk dyeing with natural dyes. Background technique [0002] With the improvement of people's health care awareness and quality of life, the safety requirements for clothing fabrics are getting higher and higher. Safe, non-toxic, renewable and environmentally friendly natural dyes are more popular and have broad development prospects. [0003] Dyeing with natural dyes has a long history in my country. According to legend, as early as the Yellow Emperor's period in our country, people were able to use the juice of plants to dye. In 1959, archaeologists discovered dyed silk thread from the Yin Dynasty tomb of Wang Yukou in Anyang, Henan Province, which shows that at least in the Yin Dynasty, people had already used natural dyes for dyeing. Our people h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P1/673D06P3/04
Inventor 侯秀良杨瑞玲潘刚伟陈欣子石振
Owner JIANGNAN UNIV
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