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A kind of polyimide carrier dyeing method

A polyimide and carrier dyeing technology, which is applied in the fields of textile printing and dyeing auxiliaries and textile dyeing and finishing processing, can solve the problems of non-conforming high-performance fibers and damage to fabric strength, and achieve deep fabric color, good fabric strength maintenance, and high-quality fabrics. The effect of large amount of dye

Active Publication Date: 2019-07-02
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the patents CN201410817952.2 and CN201310493553.0, it is mentioned that the polyimide fiber is dyed with a carrier, and the carrier used is a general reagent for polyester carrier dyeing, which is benzyl alcohol, methyl benzoate, acetophenone, methacrylic acid Small organic compounds with non-amide structure such as methyl ester; before dyeing, polyimide is treated with alkaline solution to hydrolyze polyimide molecules to obtain polar groups, but the strength of the fabric will inevitably be affected to a certain extent after the fiber is hydrolyzed. damage, does not meet the requirements of high-performance fibers

Method used

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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  • A kind of polyimide carrier dyeing method
  • A kind of polyimide carrier dyeing method
  • A kind of polyimide carrier dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] select R 1 is phenyl, R 2 is methyl, R 3 Substances that are hydrogen are used as carriers.

[0021] Get 2g polyimide knitted fabric, put into the solution that contains nonionic surfactant AEO-7 (2g / L) and degreasing agent CT-3 (1g / L), bath ratio is 30:1, at 95 Treat at ℃ for 30 minutes, fully wash with water and dry.

[0022] Put the polyimide fabric washed to remove impurities into the carrier dye solution containing 5% cationic red SD-GRL and 50g / L of the weight of the fabric, wherein the bath ratio of the dye solution to the fabric is 15:1, at 1.5 ° C / min speed up to 120°C for 40min.

[0023] After the dyeing is completed, put the fabric into the soaping solution containing 2g / L nonionic surfactant AEO-7 and 2g / L sodium carbonate, the bath ratio is 20:1, and fully treat the fabric at 85°C for 15min. Wash and tumble dry.

[0024] The color parameters and washing fastness of the dyed samples are shown in Table 1.

Embodiment 2

[0026] select R 1 is methyl, R 2 is methyl, R 3 Substances that are hydrogen are used as carriers.

[0027] Get 2g polyimide knitted fabric, put into the solution that contains nonionic surfactant AEO-7 (2g / L) and degreasing agent CT-3 (1g / L), bath ratio is 30:1, at 95 Treat at ℃ for 30 minutes, fully wash with water and dry.

[0028] Put the polyimide fabric washed to remove impurities into the carrier dye solution containing 5% cationic blue SD-GSL 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 to 130 ° C for 120 min.

[0029] After the dyeing is completed, put the fabric into the soaping solution containing 2g / L nonionic surfactant AEO-7 and 2g / L sodium carbonate, the bath ratio is 20:1, and fully treat the fabric at 85°C for 15min. Wash and tumble dry.

[0030] The color parameters and washing fastness of the dyed samples are shown in Table 1.

Embodiment 3

[0032] select R 1 is phenyl, R 2 is methyl, R 3 Substances for hydrogen and R 1 is methyl, R 2 is methyl, R 3 Substances that are hydrogen are used as carriers.

[0033] Get 2g polyimide knitted fabric, put into the solution that contains nonionic surfactant AEO-7 (2g / L) and degreasing agent CT-3 (1g / L), bath ratio is 30:1, at 85 Treat at ℃ for 30 minutes, fully wash with water and dry.

[0034] The polyimide fabric that washing removes impurity is put into the carrier that contains 5% cationic red SD-GRL to fabric weight and 5% cationic blue SD-GSL and 100g / L to fabric weight (two kinds of carriers each 50g / L), The liquor ratio of the dye liquor to the fabric is 20:1, and the temperature is raised to 120°C at a speed of 2°C / min and kept for 40 minutes.

[0035] After the dyeing is completed, put the fabric into the soaping solution containing 2g / L nonionic surfactant AEO-7 and 2g / L sodium carbonate, the bath ratio is 30:1, and fully treat the fabric at 85°C for 15min ...

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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PUM

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Abstract

The invention discloses a polyimide carrier dyeing method, and belongs to the technical field of textile printing and dyeing. The polyimide carrier dyeing method comprises the following steps: (1) pretreating polyimide fiber fabric to remove impurities attached to the fabric during the process of silk making, weaving and storing; (2) by using an organic material containing an amide structure as a carrier for polyimide dyeing, giving the fabric a certain amount of color yield after dyeing by the carrier; (3) washing, soap boiling and washing the dyed fabric to remove surface dyeing. According to the polyimide carrier dyeing method, the polyimide fabric is dyed under the high temperature condition by using the carrier and cationic dye, the fabric has a certain amount of color yield, and the dyed fabric has high color fastness to water.

Description

technical field [0001] The invention relates to a polyimide carrier dyeing method, which belongs to the fields of textile printing and dyeing auxiliaries and textile dyeing and finishing processing. Background technique [0002] Polyimide fiber (Formula 1) is a high-strength, high-modulus high-performance fiber. Its excellent mechanical properties, high temperature resistance, chemical resistance, radiation resistance and insulation properties make polyimide fibers widely used. Concern, compared with high-performance fibers such as aramid, polyimide has better comprehensive application. Polyimide fiber can be used to develop various protective clothing, can be used as high-temperature filter cotton, high-temperature filter felt, and can also be widely used in special application fields such as aerospace, and has very considerable application prospects. [0003] The main chain of polyimide contains imide rings. The structure is shown in the figure below. The molecular struct...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/649D06P1/41D06P3/02
CPCD06P1/41D06P1/6495D06P3/02
Inventor 杜金梅邵冬燕许长海高卫东王鸿博赵慧
Owner JIANGNAN UNIV
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