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A kind of dyeing method of berberine to acetin fiber

A technology of acetocyanine fiber and dyeing method, applied in dyeing method, textile and papermaking, etc., can solve problems such as undeveloped berberine, improve dyeing percentage and dyeing fastness, expand application field, adsorption capacity and The effect of electrostatic attraction enhancement

Active Publication Date: 2020-11-06
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the dyeing process of using berberine on vinegar green fiber has not been developed yet. How to make full use of berberine dye with excellent performance and explore its dyeing process and method for vinegar green fiber is very urgent

Method used

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  • A kind of dyeing method of berberine to acetin fiber
  • A kind of dyeing method of berberine to acetin fiber
  • A kind of dyeing method of berberine to acetin fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: The effect of different pretreatment processes on the dyeing effect of acetonitrile fiber

[0022] Adopt (1) separate ionic liquid treatment, (2) separate nitrilase treatment, (3) ionic liquid and nitrilase combined process, respectively to pretreat the acetonitrile fiber, the above three different pretreatments The fiber is dyed with berberine, the method is as follows:

[0023] Step a. Pretreatment process:

[0024] (1) The individual ionic liquid treatment process is: the mass fraction of monoallyl-3-methylimidazolium chloride salt ionic liquid is 90%, bath ratio is 1:45, treated at 60°C for 30 minutes, and the sample is taken out, absolute ethanol Wash 3 times, wash with water.

[0025] (2) The treatment process of nitrilase alone is as follows: nitrilase dosage is 6% owf, pH=7.0, bath ratio 1:40, treatment at 45°C for 30 minutes, washing with water, and drying.

[0026] (3) The combined pretreatment process of ionic liquid and nitrilase is: ①The mass fraction of...

Embodiment 2

[0033] Example 2: The effect of the amount of ionic liquid on the dyeing performance of acetonitrile fiber.

[0034] A dyeing method of berberine to acetonitrile fiber is as follows:

[0035] Step a. Pretreatment process: ①, the mass fraction of 1-allyl-3-methylimidazolium chloride salt ionic liquid is 80%-95%, bath ratio is 1:45, treated at 60°C for 30min, and the sample is taken out, Wash with absolute ethanol 3 times and then with water. ②The dosage of nitrilase is 6% owf, pH=7.0, bath ratio 1:40, treatment at 45℃ for 30min, washing with water and drying.

[0036] Step b. Dyeing process: berberine dosage 3% owf, pH=4, bath ratio 1:30, dyeing at room temperature, heating at 1°C / min to 90°C, holding for 60 minutes, washing with water, and drying.

[0037] Using the above process, the dosage of 1-allyl-3-methylimidazolium chloride salt ionic liquid was adjusted, and its effect on the dyeing performance of acetate fiber was tested. The results are shown in Table 2.

[0038] Table 2. Th...

Embodiment 3

[0041] Example 3: The effect of the amount of nitrilase on the dyeing performance of acetonitrile fiber.

[0042] A method for dyeing acetonitrile fiber with berberine, the method is as follows:

[0043] Step a. Pretreatment process: ①The mass fraction of 1-allyl-3-methylimidazolium chloride salt ionic liquid is 90%, bath ratio is 1:45, treated at 60℃ for 30min, take out the sample, and wash 3 with absolute ethanol Time, wash. ②The dosage of nitrilase is 4%owf-10%owf, pH=7.0, bath ratio 1:40, treatment at 45℃ for 30min, wash with water, and dry.

[0044] Step b. Dyeing process: berberine dosage 3% owf, pH=4, bath ratio 1:30, dyeing at room temperature, heating at 1°C / min to 90°C, holding for 60 minutes, washing with water, and drying.

[0045] Using the above process, adjust the amount of nitrilase, and test its effect on dyeing performance, as shown in Table 3.

[0046] Table 3. The effect of nitrilase dosage on dyeing performance.

[0047] Nitrilase dosage (%owf) K / S 47.9154 68....

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Abstract

The invention discloses a method of dyeing vinegar fibers by berberine. The method is characterized in that the vinegar fibers are pretreated by ionic liquid to swell the vinegar fibers, so that the adsorption and diffusion of nitrilase and the berberine are facilitated; then the nitrilase is used for treating the vinegar fibers, so that part of cyan groups are hydrolyzed into carboxylic acids, the treated vinegar fibers have electrostatic attraction to cationic berberine, and the specific absorption positions of berberine molecules on the vinegar fibers are increased, and thus, the color yield and color fastness are improved. The technology of dyeing the vinegar fibers by berberine is ecological and sanitary and has relatively high color yield.

Description

Technical field: [0001] The invention relates to a method for dyeing acetonitrile fibers, and more specifically to a method for dyeing acetonitrile fibers with berberine. Background technique: [0002] Berberine is a common isoquinoline alkaloid with a quaternary ammonium structure. It is a quaternary ammonium alkaloid with good water solubility, non-toxic, harmless, ecological and environmental protection, antibacterial health care. At present, the role of berberine is mainly used in biopharmaceuticals. [0003] Acetate green fiber is a new type of fiber made by organically combining natural plant macromolecules and synthetic elements. It not only retains the characteristics of acrylic fiber fluffy, soft, smooth and high strength, but also has good dimensional stability and warmth retention. And antistatic, mainly used in underwear, sweaters, outerwear, home textiles and other fields. [0004] At present, the dyeing process of using berberine on vinegar fiber has not yet been deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/66D06P1/642D06P3/854
CPCD06P1/6426D06P1/66D06P3/8266
Inventor 白刚陈治忠刘艳春
Owner SHAOXING UNIVERSITY
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