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Dyeing method of indigo dye and indigo yarn

A technology of indigo dye and dyeing method, which is applied in the dyeing method of indigo dye and the field of indigo yarn, can solve the problems of low color fastness, achieve high color fastness, reduce dyeing costs, and reduce sewage treatment costs

Active Publication Date: 2020-11-06
GUANGDONG FORWARD DENIM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a dyeing method of indigo dye and indigo yarn, aiming to solve the problem of low color fastness in the existing indigo fuel dyeing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Yarn: The yarn is pure cotton yarn.

[0051] Scouring: The yarn enters the scouring tank for scouring treatment; the scouring tank is added with scouring enzyme and penetrant, the concentration of scouring enzyme is 4g / L, the penetrant is 4g / L, and the treatment temperature is 80℃ , the processing time is 3min.

[0052] Steaming: the yarn is treated in a steam box, the temperature of the steam box is 130°C, and the treatment time is 4 minutes.

[0053] Modification: The yarn enters the box tank for modification treatment; the box tank is added with a modifier, the concentration of the modifier is 9g / L, the treatment time is 12min, and the treatment temperature is 70°C.

[0054] Dyeing: the yarn enters the dye tank for dyeing; in the dye tank, indigo dye, sodium hydroxide, sodium hydroxide and dispersant are added, wherein the content of indigo dye is 5.2g / L, the content of sodium hydrosulfite is 2.8g / L, and the content of hydrogen oxidized The content of sodium is 4.8...

Embodiment 2

[0064] Yarn: The yarn is cotton and tencel mixed yarn.

[0065] Scouring: The yarn enters the scouring tank for scouring treatment; the scouring tank is added with scouring enzyme and penetrant, the concentration of scouring enzyme is 2g / L, the penetrant is 2g / L, and the treatment temperature is 90℃ , the processing time is 2min.

[0066] Steaming: the yarn is treated in a steam box, the temperature of the steam box is 120°C, and the treatment time is 3 minutes.

[0067] Modification: the yarn enters the box tank for modification treatment; the box tank is added with a modifier, the concentration of the modifier is 5g / L, the treatment time is 15min, and the treatment temperature is 80°C.

[0068] Dyeing: the yarn enters the dye tank for dyeing; in the dye tank, indigo dye, sodium hydroxide, sodium hydroxide and dispersant are added, wherein the content of indigo dye is 4.6g / L, the content of sodium hydrosulfite is 2.2g / L, and the content of hydrogen oxidized The content of s...

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Abstract

The invention discloses a dyeing method of an indigo dye and an indigo yarn. The dyeing method specifically comprises the following steps: boiling off; steaming; modifying; dyeing; nitrogen treatment;first washing; second washing; color fastness improver treatment; first drying; third washing; drying; and winding. The method disclosed by the invention only needs one dyeing treatment, and the dyeing cycle index is greatly reduced on the premise of ensuring the color fastness.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing, and mainly relates to a dyeing method of indigo dye and indigo yarn. Background technique [0002] Denim clothing is an evergreen tree in clothing. After more than 100 years, it has been standing on the stage of fashion clothing and has become the "darling" in the hands of designers. The classic denim clothing is made of indigo blue warp yarns and white weft yarns using a 3 / 1 weave structure to form a fabric. After finishing and washing technology, the denim clothing is endowed with additional added value, reflecting the ever-changing styles of denim clothing, and improving the quality of denim clothing. Competitiveness in the market. [0003] The warp yarn of traditional denim fabric is dyed with indigo dye. Due to the characteristics of indigo dye itself, indigo dye is a reducing dye and is insoluble in water. Blue, so as to achieve the effect of dyeing. However, when indigo dye...

Claims

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Application Information

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IPC IPC(8): D06P1/22D06L1/00D06P5/20D06P5/02D06P3/60
CPCD06P1/228D06L1/00D06P5/2072D06P5/02D06P3/6025
Inventor 王宗文源满荣梁汉锋柯文博
Owner GUANGDONG FORWARD DENIM
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