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Ether alcohol type carrier dyeing method for polyimide fibers and fabric

A technology of polyimide fiber and polyimide, which is applied in the fields of textile printing and dyeing auxiliaries and textile dyeing and finishing, and can solve problems such as unsatisfactory effects and difficulty in dyeing dark colors

Active Publication Date: 2017-11-17
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN201710342615.6 uses organic solvents containing amides as the carrier for polyimide dyeing, but its effect as a carrier is not ideal, it is difficult to dye dark colors, and this type of carrier has not been independently used in polyimide dyeing. It is also widely used in the dyeing of composite carriers for synthetic fibers in the field of textiles

Method used

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  • Ether alcohol type carrier dyeing method for polyimide fibers and fabric
  • Ether alcohol type carrier dyeing method for polyimide fibers and fabric
  • Ether alcohol type carrier dyeing method for polyimide fibers and fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Choose a phenyl ether carrier, where R 1 for -CH 2 CH(OH)CH 3 , R 2 for -CH 3 ; 3 , R 4 , R 5 , and R 6 for -H.

[0026] Take 2g of polyimide knitted fabric, put it into a solution containing non-ionic surfactant AEO-7 (3g / L), the liquor ratio is 30:1, treat it at 85°C for 60min, wash it thoroughly and then dry it.

[0027] Put the polyimide fabric washed to remove impurities into a carrier containing 5% cationic blue X-GRRL and 50g / L of the weight of the fabric, wherein the bath ratio of the dye solution to the fabric is 20:1, at a speed of 2°C / min Raise the temperature to 125°C for 60 minutes. After the heat preservation was completed, the temperature was lowered to 80°C at a cooling rate of 2°C / min.

[0028] Put the fabric into the soap solution containing 3g / L non-ionic surfactant AEO-7, the liquor ratio is 30:1, treat the fabric at 95°C for 15min, then fully wash and dry.

[0029] The color parameters and washing fastness of the dyed samples are shown in...

Embodiment 2

[0031] Select the phenyl ether carrier, R 1 for -CH 2 CH 2 OH,R 2 , R 3 , R 4 , R 5 , and R 6 for -H.

[0032] Take 2g of polyimide knitted fabric, put it into a solution containing nonionic surfactant AEO-7 (2g / L), the bath ratio is 30:1, treat it at 95°C for 30min, wash it with water and dry it.

[0033] Put the polyimide fabric that removes impurities into the carrier dye solution containing 2.5% cationic red X-GRL and 2.5% cationic blue X-GRRL and 10g / L to the weight of the fabric, wherein the bath ratio of dye solution to fabric The ratio is 15:1, and the temperature is raised to 120°C at a rate of 1.5°C / min and kept for 120min. After the heat preservation was completed, the temperature was lowered to 80°C at a cooling rate of 2°C / min.

[0034] Put the fabric into the soaping solution containing 2g / L nonionic surfactant AEO-7, the bath ratio is 20:1, treat the fabric at 85°C for 15min, then fully wash and dry.

[0035] The color parameters and washing fastness o...

Embodiment 3

[0037] Select a phenyl alcohol carrier, where R 1 for -CH 2 -, R 2 , R 3 , R 4 , R 5 , and R 6 for -H.

[0038] Take 2g of polyimide knitted fabric, put it into a solution containing non-ionic surfactant AEO-7 (3g / L), the liquor ratio is 20:1, treat it at 95°C for 30min, wash it thoroughly and then dry it.

[0039] Put the polyimide fabric washed to remove impurities into the carrier dye solution containing 2.5% cationic blue X-GRRL and 50g / L of the weight of the fabric, wherein the bath ratio of the dye solution to the fabric is 30:1, at 3 ° C / min speed up to 130°C for 40min. After the heat preservation was completed, the temperature was lowered to 80°C at a cooling rate of 3°C / min.

[0040] Put the fabric into the soaping liquid containing 2g / L non-ionic surfactant AEO-7, the liquor ratio is 30:1, treat the fabric at 95°C for 30min, then fully wash and dry.

[0041] The color parameters and washing fastness of the dyed samples are shown in Table 1.

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PUM

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Abstract

The invention discloses an ether alcohol type carrier dyeing method for polyimide fibers and fabric, and belongs to the field of textile printing and dyeing aids and textile dyeing and finishing. The ether alcohol type carrier dyeing method comprises the following steps: (1) pre-treating polyimide fiber fabric to remove throwing and impurities attached on fabric in a weaving process and a storage process; (2) providing certain color yield on the fabric by carrier dyeing; and (3) washing, soap boiling and washing the dyed fabric to remove flooding when dyeing. According to the ether alcohol type carrier dyeing method disclosed by the invention, the polyimide fabric is dyed under a high-temperature condition through a carrier and cationic dyes, the fabric has certain color yield, and the dyed fabric has relatively high color fastness to washing.

Description

technical field [0001] The invention relates to a method for dyeing polyimide fibers and fabrics with an ether alcohol carrier, belonging to the fields of textile printing and dyeing auxiliaries and textile dyeing and finishing. Background technique [0002] Polyimide fiber is an aromatic fiber with various excellent properties of high-performance fibers. Compared with other high-performance fibers, polyimide has better comprehensive application properties, and can be used to develop various protective clothing, and can also be used in special applications such as aerospace and military, and has great market prospects. The polyimide fiber is golden yellow, and the color is too bright, which greatly limits the application of polyimide, and it is very necessary to dye polyimide. However, polyimide fiber has regular structure, good thermal stability, and very high glass transition temperature, so the dyeing is greatly restricted. At present, there are no more than two dyeing ...

Claims

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Application Information

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IPC IPC(8): D06P1/41D06P1/651D06P3/02
CPCD06P1/41D06P1/65118D06P1/65131D06P3/022
Inventor 邵冬燕杜金梅许长海高卫东王鸿博
Owner JIANGNAN UNIV
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