CN112593425A - Finishing method for improving color fastness of cotton fabric dyed by laccase-catalyzed plant dye - Google Patents
Finishing method for improving color fastness of cotton fabric dyed by laccase-catalyzed plant dye Download PDFInfo
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- CN112593425A CN112593425A CN202011408637.6A CN202011408637A CN112593425A CN 112593425 A CN112593425 A CN 112593425A CN 202011408637 A CN202011408637 A CN 202011408637A CN 112593425 A CN112593425 A CN 112593425A
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- laccase
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/34—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using natural dyestuffs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
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Abstract
The invention discloses a finishing method for improving color fastness of cotton fabric dyed by laccase catalytic plant dye, belonging to the field of ecological dyeing. The method takes safe, nontoxic and rich-source walnut green peel as a raw material, and prepares the plant dye by catalyzing the walnut green peel extract with laccase. The dye is used for dyeing cotton fabrics, ensures excellent dyeing effect, improves color fastness, solves the problems of poor traditional dyeing fastness and high pollution, and simultaneously dyes the fabrics uniformly and has darker color. The walnut peel raw material is derived from food, and the reaction process catalyzed by the laccase is green and environment-friendly, so that the safety of the dyed fabric is ensured from the source, the method for improving the color fastness of the dyed cotton fabric by catalyzing the plant dye by the laccase is simple and reliable, the finishing process is simple and convenient to operate, and the requirements of green dyeing and finishing and ecological dyeing and finishing are met.
Description
Technical Field
The invention relates to a finishing method for improving color fastness of cotton fabric dyed by laccase catalytic plant dye, belonging to the field of biological dyeing.
Background
The natural dye is mainly derived from plants, animals, microorganisms and minerals which are substances existing in nature, is non-toxic, pollution-free, environment-friendly and degradable, has good antibacterial property and health care property, returns to the visual field of people again in the last thirty years, and is widely applied to textile materials. The natural dye can be applied to textile materials and medical tissue dyeing, and can also be used as a solar cell sensitizer, an additive of color cosmetics and the like. The natural dye is mainly derived from various plants in nature, such as madder, safflower, lithospermum, indigo honeysuckle, turmeric, tea, walnut green husk and the like. According to different chemical structures and components, the method can be divided into the following seven major categories: carotenoids, naphthoquinones, anthraquinones, flavonoids, curcuminoids, indigoids, and chlorophyll. However, natural dyes also have certain limitations: (1) the extraction rate is low, the chromatogram is incomplete, the reproducibility is poor, and the requirement of large-scale production in textile processing cannot be met; (2) the dye has low dye-uptake and low dyeing fastness, and a large amount of heavy metal mordant needs to be added in the dyeing process, thereby causing profound harm to human bodies and ecological environment. Therefore, the development of an environment-friendly harmless biological mordant for dyeing cotton fabrics and improving the color fastness of the dyed fabrics is urgently needed in the present society.
With the increasing awareness of environmental protection of people, whether the textile processing process is green and pollution-free becomes a social concern, and the development of the ecological and environment-friendly textile processing technology becomes a target pursued by researchers at home and abroad. In recent years, biosynthesis gradually replaces chemical catalysis, becomes a novel environment-friendly technology and is applied to various fields. Meanwhile, as the commercialization degree of the enzyme preparation is increased, laccase is unique due to the advantages of high catalytic activity, wide substrate range and the like, and is favored by more and more scientific researchers.
Laccase is used as one of polyphenol oxidase, can catalyze colorless micromolecular phenol monomers to polymerize to generate colored high molecular polymers, and can be applied to dyeing of various fiber materials. The macromolecular composition of the cotton fiber contains a large number of hydroxyl active groups, and the macromolecular composition is easy to react with enzymatic phenol polymerization products to form covalent bonding so as to achieve higher dyeing fastness. The walnut green peel extracting solution is a solution rich in a large amount of phenolic substances, can be catalyzed by laccase, further polymerizes on the surface of cotton fabric to form color, and simultaneously improves the combination degree of the colored substances and fibers and the color fastness. As known from the current literature, laccase has not been used for catalyzing the dyeing of cotton fabrics by using the walnut Chinese olive peel extracting solution, and has not been used for researching the improvement of the dyeing fastness of plant dye cotton fabrics.
Disclosure of Invention
In order to overcome the defects of overhigh salt concentration of dyeing wastewater and difficult wastewater treatment caused by traditional dyeing, the invention provides a method for dyeing cotton fabrics based on laccase-catalyzed plant dye.
A finishing method for improving color fastness by dyeing cotton fabrics with laccase catalyzed plant dyes comprises the following steps: adding laccase and walnut Chinese olive peel extracting solution into 100 mL of sodium acetate buffer solution, wherein the dosage of the laccase is 0.02-0.5U/mL; the using amount of the walnut green peel extracting solution is 1-10%; and (3) fully mixing and dissolving, then adding the cotton fabric, reacting the reaction solution under the oscillation condition, taking out and fully washing, and airing at room temperature to obtain the laccase-catalyzed walnut Chinese olive peel extract dye-dyed cotton fabric.
The reaction temperature of the reaction solution is 20-80 ℃ under the oscillation condition.
The reaction pH of the reaction solution is 2-6 under the oscillation condition.
The oscillation rate of the oscillation condition is 30 to 70 rpm.
The mass of the cotton fabric is 0.5-2 g.
The invention has the beneficial effects that:
compared with the traditional dyeing method, the invention has the advantages and effects that:
(1) the color fastness is good: according to the invention, the laccase is used for catalyzing the walnut Chinese olive peel extracting solution to dye cotton fabrics, the plant dye generated by the method has high binding force and high dye uptake, so that the dyed cotton fabrics have dark color, the K/S values are 16.61, the L, the a and b values are 28.57, 7.98 and 8.82 respectively, the dyeing fastness is good (4-5 level), and the dyeing effect is superior to that of the traditional dyeing. Meanwhile, the fabric is dyed uniformly without obvious color difference.
(2) Economic and environment-friendly: the invention takes laccase as a catalyst, and the walnut peel is derived from food and has low price. In addition, because the laccase catalytic reaction takes oxygen in the air as an oxidant and the product is water, the whole reaction is green and environment-friendly, no energy is wasted, and the safety of the dyed fabric is ensured from the source. The method for improving the color fastness of the cotton fabric dyed by the laccase catalyzed plant dye is simple and reliable, the dyeing process is simple and convenient to operate, and the requirements of green dyeing and finishing and ecological dyeing and finishing are met.
Detailed Description
The invention is further described below with reference to examples, but the scope of the invention as claimed is not limited to the scope shown by the examples.
A method for improving color fastness of cotton fabric dyed by laccase-catalyzed plant dye comprises the following specific implementation modes:
example 1:
adding 0.1U/mL laccase and 5% of walnut green peel extracting solution into 100 mL sodium acetate buffer solution, fully mixing and dissolving, then adding 0.5g cotton fabric, oscillating and reacting the reaction solution at 50 ℃ for 5 hours, finally taking out and fully washing, and airing at room temperature to obtain the cotton fabric dyed by the walnut green peel extracting solution dye under the catalysis of the laccase.
The K/S value of the dyed cotton fabric is 15.46, the wash fastness is class 4, the rub fastness is class 5, the scrub fastness is class 4-5 and the light fastness and staining fastness is class 5, measured according to the national standards GB/T3921.1-1997, GB/T3920-1997, GB/T8427-2008, GB/T420-90 GB250-1995= ISO105/A02-1993 and GB251-1995= ISO 105/A03-1993.
Example 2:
adding 0.3U/mL laccase and 7% walnut green peel extracting solution into 100 mL sodium acetate buffer solution, fully mixing and dissolving, then adding 0.6g cotton fabric, oscillating and reacting the reaction solution at 60 ℃ for 5 hours, finally taking out and fully washing, and airing at room temperature to obtain the cotton fabric dyed by the walnut green peel extracting solution dye under the catalysis of the laccase.
The K/S value of the dyed cotton fabric is 16.34, the wash fastness is grade 5, the rub fastness is grade 4-5, the scrub fastness is grade 5, and the light fastness and staining fastness is grade 5, measured according to national standards GB/T3921.1-1997, GB/T3920-1997, GB/T8427-2008, GB/T420-90 GB250-1995= ISO105/A02-1993 and GB251-1995= ISO 105/A03-1993.
Example 3:
adding 0.5U/mL laccase and 10% of walnut green peel extracting solution into 100 mL sodium acetate buffer solution, fully mixing and dissolving, then adding 1g cotton fabric, oscillating and reacting the reaction solution at 30 ℃ for 5 hours, finally taking out and fully washing, and airing at room temperature to obtain the cotton fabric dyed by the walnut green peel extracting solution dye under the catalysis of the laccase.
The K/S value of the dyed cotton fabric is 16.61, the wash fastness is grade 5, the rub fastness is grade 5, the scrub fastness is grade 5, and the light fastness and color fastness is grade 5, as determined according to national standards GB/T3921.1-1997, GB/T3920-1997, GB/T8427-2008, GB/T420-90 GB250-1995= ISO105/A02-1993 and GB251-1995= ISO 105/A03-1993.
Example 4:
adding 0.02U/mL of laccase and 1% of walnut green peel extracting solution into 100 mL of sodium acetate buffer solution, fully mixing and dissolving, then adding 0.5g of cotton fabric, oscillating and reacting the reaction solution at 70 ℃ for 5 hours, finally taking out, fully washing, and airing at room temperature to obtain the cotton fabric dyed with the walnut green peel extracting solution dye under the catalysis of the laccase.
The K/S value of the dyed cotton fabric is 12.14, the wash fastness is grade 3, the rub fastness is grade 3-4, the scrub fastness is grade 3, and the light fastness and staining fastness is grade 3, measured according to national standards GB/T3921.1-1997, GB/T3920-1997, GB/T8427-2008, GB/T420-90 GB250-1995= ISO105/A02-1993 and GB251-1995= ISO 105/A03-1993.
Example 5:
adding 0.04U/mL laccase and 3% of walnut green peel extracting solution into 100 mL sodium acetate buffer solution, fully mixing and dissolving, then adding 0.7g cotton fabric, oscillating and reacting the reaction solution at 40 ℃ for 5 hours, finally taking out and fully washing, and airing at room temperature to obtain the cotton fabric dyed by the walnut green peel extracting solution dye under the catalysis of the laccase.
The K/S value of the dyed cotton fabric is 15.44, the wash fastness is 4-5, the rub fastness is 3-4, the scrub fastness is 4 and the light fastness staining is 4 according to the national standards GB/T3921.1-1997, GB/T3920-1997, GB/T8427-2008, GB/T420-90 GB250-1995= ISO105/A02-1993 and GB251-1995= ISO 105/A03-1993.
Example 6:
adding 0.08U/mL laccase and 5% of walnut green peel extracting solution into 100 mL sodium acetate buffer solution, fully mixing and dissolving, then adding 0.8g cotton fabric, oscillating and reacting the reaction solution at 50 ℃ for 5 hours, finally taking out and fully washing, and airing at room temperature to obtain the cotton fabric dyed by the walnut green peel extracting solution dye under the catalysis of the laccase.
The K/S value of the dyed cotton fabric is 16.41, the wash fastness is grade 5, the rub fastness is grade 4-5, the scrub fastness is grade 4-5, and the light fastness and staining fastness is grade 5, measured according to national standards GB/T3921.1-1997, GB/T3920-1997, GB/T8427-2008, GB/T420-90 GB250-1995= ISO105/A02-1993 and GB251-1995= ISO 105/A03-1993.
Example 7:
adding 0.2U/mL laccase and 8% of walnut green peel extracting solution into 100 mL sodium acetate buffer solution, fully mixing and dissolving, then adding 0.9g cotton fabric, oscillating and reacting the reaction solution at 80 ℃ for 5 hours, finally taking out and fully washing, and airing at room temperature to obtain the cotton fabric dyed by the walnut green peel extracting solution dye under the catalysis of the laccase.
The K/S value of the dyed cotton fabric is 10.41, the wash fastness is grade 3, the rub fastness is grade 2-3, the scrub fastness is grade 3, and the light fastness and staining fastness is grade 2-3, measured according to national standards GB/T3921.1-1997, GB/T3920-1997, GB/T8427-2008, GB/T420-90 GB250-1995= ISO105/A02-1993 and GB251-1995= ISO 105/A03-1993.
In conclusion, the invention develops the method for dyeing the cotton fabric by using the laccase-catalyzed plant dye, the color fastness of the cotton fabric is obviously improved, the color fastness is improved by 1-2 levels, the dyeing depth is deep, the dyeing is uniform, the dyeing wastewater is pollution-free, and the requirements of ecological dyeing can be met.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A finishing method for improving color fastness by using laccase to catalyze plant dye to dye cotton fabric is characterized by comprising the following steps: the method comprises the following steps: adding laccase and walnut Chinese olive peel extracting solution into 100 mL of sodium acetate buffer solution, wherein the dosage of the laccase is 0.02-0.5U/mL; the using amount of the walnut green peel extracting solution is 1-10%; and (3) fully mixing and dissolving, then adding the cotton fabric, reacting the reaction solution under the oscillation condition, taking out and fully washing, and airing at room temperature to obtain the laccase-catalyzed walnut Chinese olive peel extract dye-dyed cotton fabric.
2. The finishing method for improving the color fastness of cotton fabrics dyed by laccase catalyzed plant dyes according to claim 1 is characterized in that: the reaction temperature of the reaction solution is 20-80 ℃ under the oscillation condition.
3. The finishing method for improving the color fastness of cotton fabrics dyed by laccase catalyzed plant dyes according to claim 1 is characterized in that: the reaction pH of the reaction solution is 2-6 under the oscillation condition.
4. The finishing method for improving the color fastness of cotton fabrics dyed by laccase catalyzed plant dyes according to claim 1 is characterized in that: the oscillation rate of the oscillation condition is 30 to 70 rpm.
5. The finishing method for improving the color fastness of cotton fabrics dyed by laccase catalyzed plant dyes according to claim 1 is characterized in that: the mass of the cotton fabric is 0.5-2 g.
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| CN113322695A (en) * | 2021-04-30 | 2021-08-31 | 南通大学 | Low-temperature dyeing method for cotton by using edible pigment |
| CN113863027A (en) * | 2021-09-23 | 2021-12-31 | 天津工业大学 | Method for dyeing cotton fabric by laccase-catalyzed oxidation of walnut green skin powder |
| CN114318900A (en) * | 2022-01-05 | 2022-04-12 | 中纺院（浙江）技术研究院有限公司 | Method for modifying cotton fabric by tea pigment dyed protein |
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| CN114318900A (en) * | 2022-01-05 | 2022-04-12 | 中纺院（浙江）技术研究院有限公司 | Method for modifying cotton fabric by tea pigment dyed protein |
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