Cotton cheese and reactive dye dyeing method thereof

A technology of reactive dyes and cheese, which is applied in the field of dyeing and finishing, can solve the problems of increased contact between dyes and cotton cheese, aggravated hydrolysis, uneven dyeing, etc., and achieves easy promotion and industrialization, low salt content and dye content Low, simple effect of water treatment

Pending Publication Date: 2022-07-08
HAINING GREEN UNIVERSE TEXTILE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, since most of the water is adsorbed on the cotton cheese, the chances of the dye being in contact with the cotton cheese increase, and the dyeing is too fast, which is prone to uneven dyeing.
Moreover, the feeding method of this scheme will cause the local pH in the dyeing bath to rise sharply, causing the hydrolysis of the dye to intensify under the condition of high pH value, and at the same time, it will also make the reaction speed of the local dye and the fiber too fast, thus resulting in poor dyeing. Uniform phenomenon, in non-aqueous medium dyeing, less water consumption, this phenomenon will be more obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1, preparation of black cotton cheese.

[0061] Cotton cheese to be dyed: 21 high-quality cotton cheese.

[0062] Cotton cheese yarn to be dyed: 288kg.

[0063] Dye Recipe:

[0064] Active black G: 5% (owf.);

[0065] Chemical dye water: 40% (owf.).

[0066] Lye recipe:

[0067] Soda ash: 15% (owf.);

[0068] Alkali water: 60% (owf.).

[0069] Dyeing process and parameters

[0070] 11. Weighing and chemicals.

[0071] 12. Squeeze water before dyeing, put the cotton cheese after scouring and squeezing into the special dyeing vat for non-aqueous medium cotton cheese, when squeezing water, the pressure is 0.2MPa, and the moisture content of the cotton cheese after squeezing is 150% (owf.). Wherein, in this embodiment, unless otherwise specified, the special dyeing vat for non-aqueous medium cotton cheese can be referred to as a dyeing vat for short.

[0072] 13. Add non-aqueous medium and put the non-aqueous medium into the dye vat. At this time, the mass...

Embodiment 2

[0085] Example 2, navy blue cotton cheese.

[0086] Cotton cheese to be dyed: 32 high-quality cotton cheese.

[0087] Mass of cotton cheese yarn to be dyed: 288kg.

[0088] Dye Recipe:

[0089] Active navy L-3G: 3% (owf.);

[0090] Chemical dye water: 30% (owf.).

[0091] Lye recipe:

[0092] Soda ash: 10% (owf.);

[0093] Alkali water: 50% (owf.).

[0094] Dyeing process and parameters

[0095] 21. Weighing and chemicals.

[0096] 22. Squeeze water before dyeing, put the cotton cheese after scouring and squeezing into the special dyeing vat for non-aqueous medium cotton cheese, when squeezing water, the pressure is 0.4MPa, and the moisture content of cotton cheese after squeezing is 100% (owf.). Wherein, in this embodiment, unless otherwise specified, the special dyeing vat for non-aqueous medium cotton cheese can be referred to as a dyeing vat for short.

[0097] 23. Add non-aqueous medium, put the non-aqueous medium into the dye vat, at this time, the mass ratio o...

Embodiment 3

[0110] Example 3, red cotton cheese.

[0111] Cotton cheese to be dyed: 40-count combed cotton cheese.

[0112] Mass of cotton cheese yarn to be dyed: 288kg.

[0113] Dye Recipe:

[0114] Reactive Red L-S: 0.5% (owf.);

[0115] Chemical dye water: 10% (owf.).

[0116] Lye recipe:

[0117] Soda ash: 5% (owf.);

[0118] Alkali water: 30% (owf.).

[0119] Dyeing process and parameters

[0120] 31 Weighing and chemical materials.

[0121] 32 Put the scouring and water-pressed cheese into a special dyeing vat for non-aqueous cotton cheese. When water is pressed, the pressure is 0.4MPa, and the moisture content of the cotton cheese after water-pressing is 100% (owf.). Wherein, in this embodiment, unless otherwise specified, the special dyeing vat for non-aqueous medium cotton cheese can be referred to as a dyeing vat for short.

[0122] 33. Add non-aqueous medium and put the non-aqueous medium into the dye vat. At this time, the ratio of cotton cheese yarn to non-aqueous me...

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Abstract

The invention relates to the technical field of dyeing and finishing, in particular to a cotton cheese and a reactive dye dyeing method thereof. The cotton cheese is dyed by a reactive dye, the soaping fastness of the dyeing of the cotton cheese under the national standard GB/T 3921-2008 is grade 4-5, the dry rubbing fastness under the national standard GB/T 3920-2008 is grade 4-5, the wet rubbing fastness is grade 3-4, and the color depth under the national standard GB/T 4841.7-2006 can reach 2/1 standard depth.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing, in particular to a cotton cheese yarn and a method for dyeing it with reactive dyes. Background technique [0002] The traditional process of dyeing cotton cheese yarn with reactive dyes is the dyeing tank water bath dyeing method. Among them, when the cotton cheese yarn is dyed by the dyeing tank water bath dyeing method, the dyeing water bath ratio is large, the dyeing rate and the fixing rate are not high, and the dye utilization rate is low (about 65%). In addition, a large part of the dyes cannot be fixed on the fibers, and it needs to be washed with a large amount of water to wash off these dyes, which wastes water resources and pollutes the water environment. In addition, a large amount of salt needs to be added to promote dyeing in the dyeing process of the dyeing tank water bath method, and a large amount of dyes and salts exist in the wastewater, the wastewater treatment i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/00D06P1/673D06P3/66
CPCD06P1/38D06P1/00D06P1/0032D06P1/6735D06P3/66
Inventor 陈文淼施闻雷陆正明孟涛吴璀中程文青朱洁慧王毅邵福王际平
Owner HAINING GREEN UNIVERSE TEXTILE TECH CO LTD
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