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Preparing method of easy-to-dye para-aramid

A para-aramid, easy-dyeing technology, applied in the field of preparation of easy-dyeable para-aramid, can solve the problems such as difficult to achieve uniform dyeing, and achieve the effect of improving dyeing ability, uniform and firm dyeing, and short dyeing time

Inactive Publication Date: 2019-05-03
AFCHINA CORP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the dyeing methods of para-aramid fiber include solvent dyeing method, spinning dope dyeing method, carrier dyeing method and pretreatment modified dyeing method; the dyeing time is about one hour, and it is necessary to introduce new materials or it is difficult to achieve uniform dyeing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: A kind of preparation method of easily dyeable para-aramid, the preparation process is as follows:

[0017] S1. Put the para-aramid sample to be processed on the sample stage of the plasma reaction equipment, and then close the reaction equipment;

[0018] S2. Turn on the plasma reaction equipment and set the parameters. The atmosphere is nitrogen, the gas supply pressure is set to 0.21MPa, the high frequency power is 850W, the vacuum degree is 80mTorr, and the discharge time is 2min;

[0019] S3. Press start, and the reaction equipment starts to react according to the set conditions. After the reaction is completed, it will automatically stop and take out the para-aramid fiber sample on the sample stage.

[0020] Put the para-aramid fiber sample taken out of S3 directly into the acid dye solution for dyeing, take it out after 30 minutes, wash it with water, and dry it. The dyeing is fast, the dyeing is uniform, and the color fastness is ≥4 grades.

Embodiment 2

[0021] Embodiment 2: A kind of preparation method of easily dyeable para-aramid fiber, the preparation process is as follows:

[0022] S1. Put the para-aramid sample to be processed on the sample stage of the plasma reaction equipment, and then close the reaction equipment;

[0023] S2. Turn on the plasma reaction equipment and set the parameters. The atmosphere is nitrogen, the gas supply pressure is set to 0.30MPa, the high frequency power is 810W, the vacuum degree is 50mTorr, and the discharge time is 8min;

[0024] S3. Press start, and the reaction equipment starts to react according to the set conditions. After the reaction is completed, it will automatically stop and take out the para-aramid fiber sample on the sample stage.

[0025] Put the para-aramid fiber sample taken out of S3 directly into the acid dye solution for dyeing, take it out after 30 minutes, wash it with water, and dry it. The dyeing is fast, the dyeing is uniform, and the color fastness is ≥4 grades. ...

Embodiment 3

[0026] Embodiment 3: A kind of preparation method of easily dyeable para-aramid, the preparation process is as follows:

[0027] S1. Put the para-aramid sample to be processed on the sample stage of the plasma reaction equipment, and then close the reaction equipment;

[0028] S2. Turn on the plasma reaction equipment and set the parameters. The atmosphere is argon, the gas supply pressure is set to 0.25MPa, the high frequency power is 810W, the vacuum degree is 50mTorr, and the discharge time is 8min;

[0029] S3. Press start, and the reaction equipment starts to react according to the set conditions. After the reaction is completed, it will automatically stop and take out the para-aramid fiber sample on the sample stage.

[0030] Put the para-aramid fiber sample taken out of S3 directly into the acid dye solution for dyeing, take it out after 30 minutes, wash it with water, and dry it. The dyeing is fast, the dyeing is uniform, and the color fastness is ≥4 grades.

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Abstract

The invention provides a preparing method of easy-to-dye para-aramid, and relates to the field of production of para-aramid. A para-aramid sample is treated through a low-temperature plasma technologyunder a certain condition; the treated para-aramid sample has many surface active amine groups, can be easily combined with acid dyestuff, and can be directly put into an acid dyestuff solution for dyeing for a short dyeing time of around 30 min. Compared with the prior art, the low-temperature plasma technology is utilized for treating para-aramid, the number of the surface active groups of para-aramid is increased, the activity of the surface groups is improved, so that para-aramid is easily in contact with dyestuff molecules, binding force is generated during contact, then the dyeing capability of para-aramid is improved, golden para-aramid can be dyed into other colors, other materials do not need to be introduced, the dyeing time is short, and dyeing is uniform and firm.

Description

technical field [0001] The invention relates to the field of para-aramid fiber production, in particular to a preparation method of easy-to-dye para-aramid fiber. Background technique [0002] Para-aramid itself is golden yellow; with its high strength, high modulus, and many excellent properties of chemical corrosion resistance, it is widely used in aerospace, electrical appliances and other fields. [0003] However, para-aramid is sensitive to ultraviolet rays, and it is easy to change color when encountering ultraviolet light; with the improvement of production technology, para-aramid is more and more widely used, and it has more applications in the fields of protective clothing, decorative cloth, carpets, etc. Application; On the one hand, discoloration is a bad thing when it is applied on protective clothing, and the dyeing of para-aramid can solve the problem of discoloration during its application; on the other hand, it needs a variety of The color of para-aramid; th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/02D06P1/39D06P3/24D06M101/36
Inventor 庹新林赵海林
Owner AFCHINA CORP CO LTD
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