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Garment dyeing method of vat dye or sulfur dye

A sulfur dye and garment dyeing technology, which is applied in the field of textile printing and dyeing, can solve the problems of dye liquor oxidation, high requirements for workers to operate, increase the difficulty of dyeing wastewater treatment and processing costs, and achieve reduced consumption, simple and easy process, and reduced processing cost effect

Active Publication Date: 2019-08-09
GUANGDONG ESQUEL TEXTILES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned methods of increasing chemical materials or sealing and filling nitrogen will additionally increase the difficulty and processing cost of dyeing wastewater, and also have high requirements for workers to operate. A little carelessness will cause the dye liquor to be oxidized in advance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 indigo dye is to the dyeing of pure cotton knitted garment

[0023] Present embodiment provides the dyeing method of indigo dye to pure cotton knit garment, and this method comprises the following steps:

[0024] Pre-wash the knitted garments (20 jerseys) with water-to-bath ratio 1:20, soda ash 2g / L, penetrant FKS 0.5g / L, treat at 80°C for 30 minutes, and then wash with water twice;

[0025] Utilize the dyeing material to dye the above-mentioned finished clothes after washing. The specific process formula is: foaming agent LS-30 (Yuxingtai Trading Co., Ltd.) 1.5g / L, indigo dye 0.3% o.w.f, caustic soda 3g / L, sodium hydrosulfite 7g / L, dyeing bath ratio 1:30, dyeing at 45°C for 30 minutes; during the above dyeing process, the addition of dyeing and chemical materials is as follows, first add foaming agent and 1 / 4 caustic soda and run for 10 minutes, after the foam fills the cylinder, then Add all the dyes, caustic soda, and hydrosulfite, run it stably for 10 ...

Embodiment 2

[0030] Present embodiment provides vat yellow G to the dyeing method of pure cotton knitted garment, and this method comprises the following steps:

[0031] Pre-wash the knitted garments (30 pieces of single-sided piqué) with water bath ratio 1:20, soda ash 2g / L, penetrant FKS 0.5g / L, treat at 80°C for 30min, and then wash with water twice;

[0032] Utilize the dyeing material to dye the above-mentioned finished clothes after washing. The specific process formula is: foaming agent LS-30 2g / L, vat yellow G dye 2%o.w.f, caustic soda 3g / L, hydrosulfite 7g / L, dyeing bath ratio 1:30, dyeing at 55°C for 60 minutes; during the above dyeing process, the addition of dyeing materials is as follows, first add foaming agent and 1 / 4 caustic soda and run for 10 minutes, and at the same time take part of caustic soda and hydrosulfite to restore the dye in a dry tank, Add all the dyes, caustic soda, and hydrosulfite after the foam is full of the cylinder, and then heat up and dye after 10 min...

Embodiment 3

[0037] The present embodiment provides the dyeing method of pure cotton woven garments with reduced brilliant violet 2R, and the method comprises the following steps:

[0038] Pre-wash the knitted garment (40×40 / 110×70) with water bath ratio 1:20, soda ash 2g / L, penetrant FKS 0.5g / L, treat at 80°C for 30min, and then wash with water twice;

[0039]Utilize the dyeing material to dye the finished garments after the above water washing, the specific process formula is: foaming agent LS-30 2g / L, vat yellow G dye 2%o.w.f, caustic soda 4g / L, hydrosulfite 8g / L, dyeing bath ratio 1:30, dyeing at 50°C for 60 minutes; during the above dyeing process, the addition of dyeing materials is as follows, first add foaming agent and 1 / 4 caustic soda and run for 10 minutes, and at the same time take part of caustic soda and hydrosulfite to restore the dye in a dry tank, Add all the dyes, caustic soda, and hydrosulfite after the foam is full of the cylinder, and then heat up and dye after 10 minu...

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Abstract

The invention provides a garment dyeing method of a vat dye or sulfur dye. The method comprises the following steps: a, pre-washing a garment; b, dyeing the pre-washed garment; c, dyeing and post-processing the garment: after a dye liquor is discharged, enabling the garment in a cylinder to run with the empty cylinder 10-30 minutes for oxidization or adding an oxidizing agent for washing and oxidization, executing soaping and drying treatment after the color is stabilized to finish dyeing of the garment. The method is simple and easy to implement, has the low requirement for equipment performance and can greatly reduce the processing cost, and the phenomenon is successfully solved that dye liquor is oxidized in advance in the dyeing process of a vat dye or sulfur dye.

Description

technical field [0001] The invention provides a method for dyeing garments with vat dyes or sulfur dyes, belonging to the technical field of textile printing and dyeing. Background technique [0002] Products dyed with vat dyes or sulfur dyes have high washing and light fastness, and are widely loved by customers in the market. However, this type of dye often needs to add a large amount of alkali agent and reducing agent to reduce the dye to a dyeable state during the dyeing process. During the dyeing process, with the continuous contact between the dye solution and the air, additional Excessive alkali agent and reducing agent are used to ensure that the dye liquor can be in a stable reduction state. This process consumes a large amount of chemical materials and increases the difficulty of sewage treatment. In addition, affected by the dyeing process, vat dyes or sulfur dyes are often dyed by yarn padding or dyed in equipment with excellent airtightness, which restricts the...

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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IPC IPC(8): D06P1/22D06P1/30D06P1/673D06P1/96D06P1/62D06P5/02D06P3/60
CPCD06P1/228D06P1/30D06P1/623D06P1/627D06P1/6735D06P1/965D06P3/6025D06P5/02
Inventor 罗亚雄周立明张玉高
Owner GUANGDONG ESQUEL TEXTILES CO LTD
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