CN116397436B - A method for softening and finishing linen fabric - Google Patents
A method for softening and finishing linen fabric Download PDFInfo
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- CN116397436B CN116397436B CN202310432844.2A CN202310432844A CN116397436B CN 116397436 B CN116397436 B CN 116397436B CN 202310432844 A CN202310432844 A CN 202310432844A CN 116397436 B CN116397436 B CN 116397436B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/425—Carbamic or thiocarbamic acids or derivatives thereof, e.g. urethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/35—Heterocyclic compounds
- D06M13/355—Heterocyclic compounds having six-membered heterocyclic rings
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/20—Treatment influencing the crease behaviour, the wrinkle resistance, the crease recovery or the ironing ease
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
本发明属于纺织工程领域，公开了一种亚麻织物软化整理方法，包括将亚麻织物经反复冻融，加入酸性纤维素酶、漆酶和辣根过氧化物酶，使用酪氨酸接枝交联，形成席夫碱。采用本发明方法对亚麻织物进行整理后，柔软度和抗皱性显著增加。The invention belongs to the field of textile engineering and discloses a method for softening and finishing linen fabrics, comprising subjecting the linen fabrics to repeated freezing and thawing, adding acid cellulase, laccase and horseradish peroxidase, and using tyrosine grafting and cross-linking to form Schiff bases. After the linen fabrics are finished by the method of the invention, the softness and wrinkle resistance are significantly increased.
Description
Technical Field
The invention belongs to the field of textile engineering, and particularly relates to a linen softening and finishing method.
Background
Flax is an important raw material of clothing fabrics in the hemp textile industry, and the fiber is strong, soft and fine and has better color. The flax fiber has the unique advantages of high strength, difficult decay in water, waterproof effect, friction resistance, high temperature resistance, fast heat dissipation, low dust collection rate, difficult tearing, difficult combustion, no static electricity, high acid and alkali resistance and the like, is a preferred textile material pursuing green and environment protection, and is known as 'queen' in natural fibers. However, the fabrics have poor softness, coarse and hard hand feeling, easy wrinkling and itching feeling, and influence the wearability to a certain extent.
Disclosure of Invention
In view of the above, the present invention aims to provide a linen softening finishing method, which can significantly increase softness and crease resistance after finishing linen.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a linen softening and finishing method comprising the steps of:
S1: washing and drying the linen fabric, then carrying out two-round liquid nitrogen and alkali water bath in sequence, and then washing and drying; the method comprises the steps of sequentially carrying out two rounds of liquid nitrogen and alkaline water leaching baths, specifically adopting the alkaline water leaching bath after liquid nitrogen treatment, and then sequentially carrying out the liquid nitrogen and the alkaline water leaching baths;
S2: and (3) putting the linen fabric in the step (S1) into NaAc-HAc buffer solution containing tyrosine and mixed enzyme preparation, performing a first-stage reaction, putting 2, 6-tetramethyl-1-piperidyloxy free radical into the solution, continuously introducing oxygen into the solution, performing a second-stage reaction, washing with water, and drying.
Preferably, in the step S1, the alkaline water is sodium hydroxide or potassium hydroxide solution, the concentration is 50-60g/L, and the temperature is 85-95 ℃.
Preferably, in the step S2, the mixed enzyme preparation is prepared by mixing acid cellulase, laccase and horseradish peroxidase in a mass ratio of 1:2 (0.01-0.05).
The preferable activities of the acid cellulase, laccase and horseradish peroxidase in the mixed enzyme preparation are 80000-100000U/g, 10000-20000U/g and 240000-300000U/g respectively.
Preferably, in step S2, the pH value of the NaAc-HAc buffer solution ranges from 4.0 to 5.0, and the concentration ranges from 0.1 to 0.12mol/L.
Preferably, in the step S2, the dosages of the tyrosine and the mixed enzyme preparation are respectively 0.065-0.074g/g linen and 0.23-0.45g/g linen.
Preferably, in the step S2, the dosage of the 2, 6-tetramethyl-1-piperidyloxy free radical is 0.05-0.08g/g of linen.
Preferably, in step S2, the ventilation of the oxygen is 0.5-0.8V/(v·min).
Preferably, in step S2, the reaction temperature of the first stage is 30-37 ℃ and the reaction time is 12-24h.
Preferably, in step S2, the reaction temperature of the second stage is 35-40 ℃ and the reaction time is 6-12h.
Compared with the prior art, the finishing method of the invention combines repeated quick freezing and alkali boiling to crush the large crystal area inside the cellulose by the generated ice crystals to generate small crystal areas, and then uses tyrosine to oxidize by the monooxygenation and dioxygenation of laccase and horseradish peroxidase to form polyphenol compounds as grafted polymer groups to be embedded into cracks on the surface of the linen fabric and gaps of the small crystal areas, so that the friction force between fibers is reduced, and the softness and crease resistance are obviously improved. In addition, covalent bonding of the polyphenol compound and cellulose is that aldehyde groups are generated by cellulose oxidation of laccase/TEMPO and amino groups on the polyphenol compound react to generate Schiff base. The polyphenol compound also keeps a large amount of amino and carboxyl due to tyrosine, so that the surface of the flax fiber also shows the property of the polyphenol ampholytic surfactant, and the softening finishing effect is further improved.
Detailed Description
The invention will be better understood from the following examples. However, it will be readily appreciated by those skilled in the art that the description of the embodiments is provided for illustration only and should not limit the invention as described in detail in the claims.
Example 1
A linen softening and finishing method comprising the steps of:
1. Washing and drying flax fabrics, performing liquid nitrogen treatment, then adopting a 92 ℃ 54g/L sodium hydroxide solution for dipping, sequentially performing liquid nitrogen and 92 ℃ 54g/L sodium hydroxide solution for dipping, and then washing and drying;
2. Mixing acid cellulase with activity of 92000U/g, laccase with activity of 16000U/g and horseradish peroxidase with activity of 280000U/g according to mass ratio of 1:2:0.04 to obtain a mixed enzyme preparation;
3. Adding the linen fabric in the step 1 into 0.11mol/LNaAc-HAc buffer solution with pH of 4.5 and containing tyrosine and mixed enzyme preparation, wherein the dosages of the tyrosine and the mixed enzyme preparation are respectively 0.07g/g linen fabric and 0.4g/g linen fabric, performing a first-stage reaction at the temperature of 32 ℃ for 18 hours, adding 0.07g/g 2, 6-tetramethyl-1-piperidine oxygen free radical of the linen fabric, continuously introducing oxygen into the solution, and the ventilation rate is 0.6V/(V.min), performing a second-stage reaction at the temperature of 37 ℃ for 10 hours, and finally washing and drying.
Example 2
A linen softening and finishing method comprising the steps of:
1. Washing and drying the linen fabric, then carrying out two rounds of liquid nitrogen and 60g/L potassium hydroxide solution at 85 ℃ for bathing, and then washing and drying;
2. Mixing acid cellulase with activity of 100000U/g, laccase with activity of 10000U/g and horseradish peroxidase with activity of 300000U/g according to a mass ratio of 1:2:0.01 to prepare a mixed enzyme preparation;
3. The flax fabric in the step 1 is put into 0.1mol/L NaAc-HAc buffer solution with pH of 4.0 and containing tyrosine and mixed enzyme preparation, the dosages of the tyrosine and the mixed enzyme preparation are respectively 0.065g/g flax fabric and 0.45g/g flax fabric, the first-stage reaction is carried out, the temperature is 30 ℃, the reaction time is 24 hours, then, 2, 6-tetramethyl-1-piperidine oxygen free radical of 0.05g/g flax fabric is put into the solution, oxygen is continuously introduced into the solution, the ventilation rate is 0.5V/(V.min), the second-stage reaction is carried out, the temperature is 40 ℃, the reaction time is 6 hours, and finally, the water washing and the drying are carried out.
Example 3
A linen softening and finishing method comprising the steps of:
1. Washing and drying the linen fabric, then carrying out two rounds of liquid nitrogen and 50g/L sodium hydroxide solution bath at the temperature of 95 ℃ in sequence, and then washing and drying;
2. mixing acid cellulase with activity of 80000U/g, laccase with activity of 20000U/g and horseradish peroxidase with activity of 240000U/g according to a mass ratio of 1:2:0.05 to prepare a mixed enzyme preparation;
3. Adding the linen fabric in the step 1 into 0.12mol/LNaAc-HAc buffer solution with pH of 5.0 and containing tyrosine and mixed enzyme preparation, wherein the dosages of the tyrosine and the mixed enzyme preparation are respectively 0.074g/g linen fabric and 0.23g/g linen fabric, performing a first-stage reaction at 37 ℃ for 12 hours, adding 0.08g/g 2, 6-tetramethyl-1-piperidine oxygen free radical of the linen fabric, continuously introducing oxygen into the solution, and performing a second-stage reaction at 35 ℃ for 12 hours, and finally washing and drying.
Comparative example 1 (without freeze thawing)
A linen softening and finishing method comprising the steps of:
1. mixing acid cellulase with activity of 92000U/g, laccase with activity of 16000U/g and horseradish peroxidase with activity of 280000U/g according to mass ratio of 1:2:0.04 to obtain a mixed enzyme preparation;
2. Washing and drying flax fabrics, putting the flax fabrics into 0.11mol/LNaAc-HAc buffer solution with pH of 4.5 and containing tyrosine and mixed enzyme preparations, wherein the dosages of the tyrosine and the mixed enzyme preparations are respectively 0.07g/g flax fabrics and 0.4g/g flax fabrics, carrying out a first-stage reaction at the temperature of 32 ℃ for 18 hours, then putting 2, 6-tetramethyl-1-piperidine oxygen free radical of 0.07g/g flax fabrics, continuously introducing oxygen into the solution, and carrying out a second-stage reaction at the temperature of 37 ℃ for 10 hours, and finally washing and drying.
Comparative example 2 (no TEMPO)
A linen softening and finishing method comprising the steps of:
1. washing and drying the linen fabric, then carrying out two rounds of liquid nitrogen and 54g/L sodium hydroxide solution at 92 ℃ for dipping, and then washing and drying;
2. Mixing acid cellulase with activity of 92000U/g, laccase with activity of 16000U/g and horseradish peroxidase with activity of 280000U/g according to mass ratio of 1:2:0.04 to obtain a mixed enzyme preparation;
3. the flax fabric in the step 1 is put into 0.11mol/LNaAc-HAc buffer solution with pH4.5 and containing tyrosine and mixed enzyme preparation, the dosages of the tyrosine and the mixed enzyme preparation are respectively 0.07g/g flax fabric and 0.4g/g flax fabric, the first-stage reaction is carried out at the temperature of 32 ℃ for 18 hours, then oxygen is continuously introduced into the solution, the ventilation rate is 0.6V/(V.min), the second-stage reaction is carried out at the temperature of 37 ℃ for 10 hours, and finally water washing and drying are carried out.
Comparative example 3 (tyrosine-free)
A linen softening and finishing method comprising the steps of:
1. washing and drying the linen fabric, then carrying out two rounds of liquid nitrogen and 54g/L sodium hydroxide solution at 92 ℃ for dipping, and then washing and drying;
2. Mixing acid cellulase with activity of 92000U/g, laccase with activity of 16000U/g and horseradish peroxidase with activity of 280000U/g according to mass ratio of 1:2:0.04 to obtain a mixed enzyme preparation;
3. The flax fabric in the step 1 is put into 0.11mol/LNaAc-HAc buffer solution with pH4.5 and containing mixed enzyme preparation, the dosage of the mixed enzyme preparation is 0.4g/g flax fabric respectively, the first-stage reaction is carried out, the reaction time is 18h at the temperature of 32 ℃, then, 2, 6-tetramethyl-1-piperidine oxygen free radical with the dosage of 0.07g/g flax fabric is put into the solution, oxygen is continuously introduced into the solution, the ventilation volume is 0.6V/(V.min), the second-stage reaction is carried out, the temperature is 37 ℃, the reaction time is 10h, and finally, the water washing and drying are carried out.
Crease recovery angle test
The crease recovery angle of linen before and after finishing was measured by YG (B) 541E intelligent fabric crease elastometer according to GB/T3819-1997 method for measuring recovery angle of crease recovery of textile fabrics, and the results are shown in Table 1.
TABLE 1
As can be seen from table 1, the crease recovery angle of the linen treated by the finishing method of the present invention is significantly reduced. Comparative example 1 did not disrupt the large crystal area, and neither the enzyme preparation nor the surface-modified molecule could penetrate into the fiber core. Comparative example 2 did not oxidize the free hydroxyl groups of cellulose and could not form schiff bases with the polyphenol, and although the polyphenol could go deep into the fiber core during the finishing process, no covalent bonding was achieved and a stable finishing effect could not be obtained. Comparative example 3, which does not form a polyphenol compound without tyrosine, only in the presence of tyrosine is laccase and horseradish peroxidase catalyzed its synthesis to a polyphenol zwitterionic compound, which is the key molecule for surface modification. This key molecule cannot be formed in comparative example 3, and thus a significant softening effect cannot be obtained either.
Stiffness testing
According to GB/T18318-2001 (determination of bending length of textile fabrics) 5 samples are taken in warp and weft directions respectively for testing by using an HD207N automatic fabric stiffness tester, and the results are shown in Table 2.
TABLE 2
As can be seen from Table 2, the stiffness of the linen treated by the finishing process according to the invention is significantly reduced, i.e. the softness is significantly improved. Mainly because the crystal area of the linen fabric is destroyed by repeated quick freezing and alkali boiling and the action of acid cellulase, and a part of glycosidic bonds are also broken, which provides good conditions for the subsequent oxidation of the free hydroxyl groups of cellulose by a laccase/TEMPO system. Neither comparative example 1 nor comparative example 2 formed an effective reactive aldehyde group for grafting of the polyphenol amphoteric compound. In comparative example 3, the polyphenol amphoteric compound and the active amino group thereof were not formed, and thus the softening finishing effect of the example was not obtained.
The invention provides a method and a thought of a linen softening finishing method, and a method for realizing the technical scheme are more than one way, the above is only a preferred embodiment of the invention, and it should be pointed out that a plurality of improvements and modifications can be made by those skilled in the art without departing from the principle of the invention, and the improvements and modifications should also be regarded as the protection scope of the invention. The components not explicitly described in this embodiment can be implemented by using the prior art.
Claims (8)
1. A linen softening and finishing method, characterized by comprising the following steps:
S1, washing and drying linen fabric, then carrying out two rounds of liquid nitrogen and alkali water bath in sequence, and then washing and drying, wherein the temperature of the alkali water bath is 85-95 ℃;
S2, putting the linen fabric treated in the step S1 into NaAc-HAc buffer solution containing tyrosine and a mixed enzyme preparation, performing a first-stage reaction, then putting 2, 6-tetramethyl-1-piperidine oxygen free radical, continuously introducing oxygen into the solution, performing a second-stage reaction, washing with water, and drying, wherein the mixed enzyme preparation is prepared by mixing acid cellulase, laccase and horseradish peroxidase according to a mass ratio of 1:2 (0.01-0.05).
2. A linen softening and finishing method according to claim 1, wherein in step S1, the alkali water is sodium hydroxide solution or potassium hydroxide solution at a concentration of 50-60g/L.
3. The linen softening and finishing method according to claim 1, wherein the activity of the acid cellulase is 80000-100000U/g, the activity of laccase is 10000-20000U/g, and the activity of horseradish peroxidase is 240000-300000U/g.
4. The linen softening and finishing method according to claim 1, wherein in step S2, the NaAc-HAc buffer solution has a pH value ranging from 4.0 to 5.0 and a concentration ranging from 0.1 to 0.12mol/L.
5. A linen softening and finishing process according to claim 1, wherein in step S2 the tyrosine and the mixed enzyme preparation are used in an amount of 0.065-0.074g/g linen and 0.23-0.45g/g linen, respectively.
6. A linen softening and finishing process according to claim 1, wherein in step S2, the amount of 2, 6-tetramethyl-1-piperidyloxy radicals is 0.05-0.08g/g linen.
7. A linen softening and finishing process according to claim 1, characterized in that in step S2, the reaction temperature in the first stage is 30-37 ℃ and the reaction time is 12-24 hours.
8. A linen softening and finishing process according to claim 1, wherein in step S2, the second stage reaction temperature is 35-40 ℃ and the reaction time is 6-12h.
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| CN111172766A (en) * | 2020-02-11 | 2020-05-19 | 南通大学 | Anti-itching and anti-wrinkle linen fabric and preparation method thereof |
| CN115897211A (en) * | 2022-04-01 | 2023-04-04 | 杭州桑瑞斯新材料有限公司 | Environment-friendly fabric enzyme stacking and oxygen bleaching process and application thereof |
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| CN100404750C (en) * | 2005-09-13 | 2008-07-23 | 宁波雅戈尔日中纺织印染有限公司 | A kind of processing method of whole flax soft non-ironing fabric |
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| CN111172766A (en) * | 2020-02-11 | 2020-05-19 | 南通大学 | Anti-itching and anti-wrinkle linen fabric and preparation method thereof |
| CN115897211A (en) * | 2022-04-01 | 2023-04-04 | 杭州桑瑞斯新材料有限公司 | Environment-friendly fabric enzyme stacking and oxygen bleaching process and application thereof |
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Effective date of registration: 20251014 Address after: 200001 Room 310, 3rd Floor, No. 955 and 991 Nan Suzhou Road, Huangpu District, Shanghai Patentee after: SHANGHAI HAOFAN CLOTHING CO.,LTD. Country or region after: China Address before: Nantong University Technology Transfer Research Institute, Building 1, No. 79 Yongfu Road, Chongchuan District, Nantong City, Jiangsu Province, 226019 Patentee before: NANTONG University Country or region before: China |