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Active dye quick salt-free dyeing method of cellulose product

A reactive dye, salt-free dyeing technology, applied in the field of textile printing and dyeing, can solve the problems of long dyeing and dyeing time of reactive dyes, not easy to add organic solvent in batches, and dyeing for a long time with reactive dyes, so as to shorten dyeing time and reduce dyeing. Cost and effect of reducing labor intensity

Active Publication Date: 2017-06-13
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its disadvantages are that these methods have certain limitations, and the process is relatively complicated, which does not fundamentally solve the problem that reactive dye dyeing takes a long time
Although the method of adding organic solvents in batches can indeed control the dye uptake and levelness of dyes to a certain extent, its shortcomings still have not fundamentally solved the problem of long dyeing time of reactive dyes, not only the process is complicated And because the volatilization of organic solvent makes it difficult to control the amount of organic solvent added in batches

Method used

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  • Active dye quick salt-free dyeing method of cellulose product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]According to the above process steps: the object to be dyed is cotton loose fiber, its quality is 1g, take 0.001g of reactive red B-3BF dyestuff, dissolve it in 0.75mL water to form the aqueous solution of dyestuff, then add 0.75mL ethanol to the aqueous solution and mix evenly, Finally, add 13.5mL of carbon tetrachloride and mix evenly to form a dyeing liquor. The volume of the dyeing liquor is 15mL. The cotton loose fibers to be dyed are immersed in the dyeing liquor for dyeing. The dyeing time is 5 seconds and the dyeing temperature is 25°C. After the dyeing is completed, take out the dyed cotton loose fibers for subsequent color fixing and washing processes. The washing temperature is 100° C. and the washing time is 15 minutes.

Embodiment 2

[0032] According to the above-mentioned process steps: the thing to be dyed is cotton loose fiber, its quality is 1g, take reactive yellow K-6G dyestuff 0.05g, be dissolved in 2.25mL water and form the aqueous solution of dyestuff, then add the ethanol of 5.25mL in the aqueous solution and mix evenly, Finally, add 22.5mL of carbon tetrachloride and mix evenly to form a dye liquor. The volume of the dye liquor is 30mL. The cotton loose fibers to be dyed are dipped in the dye liquor for dyeing. The dyeing time is 30 seconds and the dyeing temperature is 25°C. After the dyeing is completed, take out the dyed cotton loose fibers for subsequent color fixing and washing processes. The washing temperature is 100° C. and the washing time is 15 minutes.

Embodiment 3

[0034] According to the above process steps: the material to be dyed is cotton loose fiber, its mass is 1g, weigh 0.1g of reactive blue KE-R dye, dissolve it in 5mL water to form an aqueous solution of dye, then add 15mL ethanol to the aqueous solution and mix evenly, and finally add Mix 30mL of carbon tetrachloride evenly to form a dye liquor. The volume of the dye liquor is 50mL. The cotton loose fibers to be dyed are dipped in the dye liquor for dyeing. The dyeing time is 60 seconds and the dyeing temperature is 25°C. After the dyeing is completed, take out the dyed cotton loose fibers for subsequent color fixing and washing processes. The washing temperature is 100° C. and the washing time is 15 minutes.

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Abstract

The invention relates to an active dye quick salt-free dyeing method of a cellulose product, and belongs to the technical field of textile printing and dyeing processes. According to the dyeing method, active dye is adopted to prepare a mixed dyeing liquid of carbon tetrachloride, ethanol alcohol and water, and a cellulose product soaked in the mixed dyeing liquid is subjected to quick salt-free dyeing, so that the production efficiency of the cellulose product when the active dye intermittent dip dyeing is adopted can be effectively improved, and the dyeing time can be shortened to a great extend. The method has a relatively low dyeing temperature, has the effects of energy conservation and consumption reduction, and is adaptive to industrial large-scale production. The active dye used in dyeing does not have selectivity for the dye structure, and has good dye adaptability; neutral salt is not additionally added into a dyeing system in the dyeing process, so that the dyeing cost is reduced, labor intensity is reduced, and environmental pollution of water and soil can be relieved. The method is an environment-friendly short-flow dyeing process.

Description

technical field [0001] The invention relates to a rapid salt-free dyeing method with reactive dyes for cellulose products, belonging to the technical field of textile printing and dyeing. Background technique [0002] Cellulose material is the most commonly used processing raw material in the textile field, and is widely used in textile and clothing fabrics. There are many types of cellulose materials, such as cotton, linen, viscose, modal, and tencel fibers. The macromolecular structure of cellulose contains a large number of hydroxyl groups and has strong reactivity. It can be dyed with various dyes such as direct dyes, reactive dyes, vat dyes, and sulfur dyes. [0003] The currently widely used dyes for dyeing cellulose materials are reactive dyes, and the types of dyes include: B type, K type, KN type and other different structures. Reactive dyes have good color fastness, low price and excellent fastness, and can be used to dye cellulose materials by exhaust dyeing or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/66D06P1/38D06P1/651D06P1/00
CPCD06P1/0032D06P1/38D06P1/65118D06P3/66
Inventor 王运利徐卫林王阿明夏良君曹根阳
Owner WUHAN TEXTILE UNIV
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