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Method for dyeing copolyester-fiber-containing textile

A fiber fabric and dyeing method technology, which is applied in the new dyeing field of fabrics, can solve the problems of insignificant effect and decreased heat resistance, and achieve the effects of good color fastness, lower energy consumption and lower cost.

Inactive Publication Date: 2012-07-04
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods must add ether bonds or multi-monomer copolymerization, which will lead to a decrease in heat resistance
Some also use dyeing auxiliaries or change the structure of dyes to achieve dyeing of polyester under low temperature conditions, but the actual effect is not obvious

Method used

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  • Method for dyeing copolyester-fiber-containing textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In the dibasic acid component constituting the copolyester, the content of the terephthalic acid structural unit is more than 90 mol%, and in the diol component constituting the copolyester, the content of the ethylene glycol structural unit is 70-99 mol%. The content of the aliphatic dihydric alcohol structural unit with a chain and carbon number of 6 or less is 1 to 30 mol%, and the copolyester fiber that also contains polyethylene glycol structural units in the copolyester forms a fabric. Under the condition of 150 ° C Carry out continuous low-temperature hot-melt dyeing, and the dyeing time is 60S. Dyes and auxiliaries are as follows:

[0019] Disperse Navy Blue KT-005 10g / L

[0020] Leveling agent 1g / L

[0021] Acetic acid (pH regulator) 1g / L

[0022] After staining, use the following reagents for reduction cleaning at 80°C×20min:

[0023] Sodium hydroxide 2g / L

[0024] Sodium Hydrochloride 2g / L

[0025] Finally, washing, drying, finishing and setting at 170°...

Embodiment 2

[0027] The content of terephthalic acid structural units in the acid components constituting the copolyester is more than 90 mol%, and the glycol components constituting the copolyester are mainly ethylene glycol structural units and aliphatic dihydric alcohol structures with the structure shown in formula 1 Units, the content of ethylene glycol structural units in these two components is 70-99mol%, the content of aliphatic dihydric alcohol structural units with the structure shown in formula 1 is 1-30mol%, and the terminal carboxyl group COOH of the copolyester The content of is less than 30 equivalents / ton, formula 1 is as follows:

[0028] HO-(XO) a -M-O-(YO) b -H Formula 1

[0029] Wherein, a and b are each independently an integer of 0 to 6, and at least one of a and b is not 0.

[0030] The copolyester fiber having the above structure is formed into a fabric, dyed, reduced cleaning, washing and drying, finishing and setting, and the remaining conditions are the same a...

Embodiment 3

[0032] Adopt copolyester fiber among the embodiment 1 and cotton fiber to form blended yarn, then weave gray cloth, the blending ratio of copolyester fiber / cotton fiber is 65 / 35, in refining agent 2g / L, sodium hydroxide 2g / L, 95°C×15min, scouring treatment under the condition of water-bath ratio 1:20~50, 170°C×1min after presetting, continuous low-temperature hot-melt dyeing under the condition of 150°C, dyeing polyester fiber first, then dyeing cotton. Specific steps are as follows:

[0033] (a) Copolyester yarn is dyed with following auxiliary agent earlier:

[0034] Disperse Navy Blue KT-005 10g / L

[0035] Leveling agent 1g / L

[0036] Acetic acid 1g / L

[0037] Dyeing under the condition of 100~180℃, the dyeing time is; 30S~120S.

[0038] (b) After dyeing, use the following reagents for reduction cleaning at 80°C×20min:

[0039] Sodium hydroxide 2g / L

[0040] Sodium Hydrochloride 2g / L

[0041] (c) The dyeing auxiliaries and dosage of cotton fiber are as follows:

...

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Abstract

The invention discloses a method for dyeing a copolyester-fiber-containing textile. The method comprises the step of dyeing the copolyester-fiber-containing textile by a low-temperature thermosol dyeing method or a steam dyeing method. The dyeing property of the copolyester-fiber-containing textile can reach that of a common copolyester-fiber-containing textile at low temperature, energy resources can be saved conveniently, and production cost is reduced; and the method can be widely applied to the fields of clothes, decoration and industry.

Description

technical field [0001] The invention relates to a fabric dyeing method, more specifically a novel dyeing method capable of continuously dyeing fabrics containing copolyester fibers at low temperature. Background technique [0002] With the development of technology, polyester fiber continues to meet the needs of the society in quantity, and at the same time, it is also undergoing more humane improvement in quality. However, it is still a difficult task to improve the dyeing performance of polyester fabrics, reduce production costs and reduce environmental impact. [0003] As we all know, polyester fiber can only be dyed by pad dyeing at high temperature due to the tight structural characteristics of the macromolecular chains, which not only has problems in environmental protection and energy saving, but also has strict requirements on dyeing equipment and processes, and the cost is relatively high. At present, one of the main means is to improve the dyeing performance of po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/52D06P3/82C08G63/672
Inventor 林琳丁丽萍清水壮夫
Owner TORAY FIBER RES INST(CHINA) CO LTD