CN109576996B - Treatment method for improving crease resistance and ultraviolet resistance of silk - Google Patents
Treatment method for improving crease resistance and ultraviolet resistance of silk Download PDFInfo
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- CN109576996B CN109576996B CN201811391816.6A CN201811391816A CN109576996B CN 109576996 B CN109576996 B CN 109576996B CN 201811391816 A CN201811391816 A CN 201811391816A CN 109576996 B CN109576996 B CN 109576996B
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- silk
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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
- D06M13/10—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 oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
-
- 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
- D06M13/244—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 sulfur or phosphorus
- D06M13/248—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 sulfur or phosphorus with compounds containing sulfur
- D06M13/272—Unsaturated compounds containing sulfur atoms
- D06M13/278—Vinylsulfonium compounds; Vinylsulfone or vinylsulfoxide compounds
-
- 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
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
-
- 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
-
- 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
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a processing method for improving crease resistance and ultraviolet resistance of silk, which comprises the following steps: (1) preparing a finishing liquid, wherein the finishing liquid comprises citric acid, a reactive ultraviolet absorbent and a non-ionic wetting agent, and the pH value of the finishing liquid is alkalescent; (2) and (3) treating the silk by using the finishing liquid as a treating liquid and adopting a cold rolling process to obtain the silk with crease resistance and ultraviolet resistance. According to the treatment method for improving the crease resistance and ultraviolet resistance of silk, citric acid and reactive ultraviolet absorbent are used to react with silk under the conditions of alkalescence and low temperature to finish the silk, so that the silk is endowed with good crease resistance and ultraviolet protection functions.
Description
Technical Field
The invention relates to the technical field of textile finishing, in particular to a processing method for improving crease resistance and ultraviolet resistance of silk by adopting a cold rolling process.
Background
The silk fiber is a protein fiber with pearl luster, soft hand feeling, good hygroscopicity, elegant, gorgeous and comfortable wearing and health care function, and is always called as fiber "queen". The silk made of silk fiber is suitable for producing high-grade inner and outer garments and decorative cloth. Silk as a garment material has two major defects: firstly, the anti-wrinkle property is poor, wrinkles are easy to wrinkle in the wearing process, and nursing is difficult; and secondly, the ultraviolet resistance is poor, the fiber is easy to yellow under illumination, the silk is light and thin, the ultraviolet protection function is poor, and the problem is particularly obvious when the silk is used as a summer clothing fabric. In order to improve the wearability of silk, the silk needs to be subjected to anti-wrinkle and anti-ultraviolet functional finishing.
The crease-resistant finishing agent for silk mainly comprises N-hydroxymethyl resin, polycarboxylic acid, reactive organosilicon, water-soluble polyurethane resin and epoxy compound, and the adopted finishing process is usually a rolling-baking (padding-drying-baking) process. The N-hydroxymethyl resin has good crease-resistant effect in finishing, but has the problem of free formaldehyde release; the polycarboxylic acid finishing has no free formaldehyde release problem, has good crease-resistant effect, but has the problems of great strength reduction and easy yellowing; the reactive organic silicon and the water-soluble polyurethane resin have general crease-resistant effect; the epoxy compound has good crease-resistant effect in finishing, but the finishing process has high control requirement, needs to be treated under a stronger alkaline catalyst and high temperature, is easy to cause yellowing and brittle loss of silk due to improper process control, has the defect of high processing cost, and influences the popularization and application of the epoxy compound. In addition, the anti-wrinkle performance of the silk can be improved by adopting a vinyl monomer grafting weight increasing technology, but the hand feeling of the silk is influenced by the higher grafting rate.
The anti-ultraviolet finishing agent of the silk mainly comprises inorganic nano materials and organic ultraviolet absorbers. The inorganic nano material needs to be adhered on the silk fiber by a binder, so the hand feeling of the silk is seriously influenced, and the washability is not good enough. Therefore, silk is mainly treated with an organic ultraviolet absorber for ultraviolet resistance. Typical organic UV absorbers are benzophenones, benzotriazoles, triazines, unsymmetrical oxalyldiarylamides (oxalic acid derivatives). The organic ultraviolet absorbent suitable for silk finishing is a water-soluble organic ultraviolet absorbent containing sulfonic groups, and can be adsorbed on the fibers by the ionic bond combination of the sulfonic groups of the organic ultraviolet absorbent and the ionized amino groups of the silk fibers when in use. The fastness to washing of the non-reactive organic ultraviolet absorbent on silk is not good enough; the reactive ultraviolet absorbent with a structure similar to that of the reactive dye active group is adopted for finishing, so that the washable ultraviolet-resistant effect of the silk can be achieved.
The ideal silk fabric for summer clothing has the double functions of ultraviolet resistance and wrinkle resistance. In order to endow silk fabric with dual functions of ultraviolet resistance and crease resistance, an organic ultraviolet absorbent and an anti-crease finishing agent are generally needed to finish silk in two steps, and the two-step finishing has the defects of long process flow, high energy consumption and easiness in damage of the silk, so that a one-step ultraviolet resistance and anti-crease finishing technology is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a treatment method for improving the crease resistance and ultraviolet resistance of silk.
In order to solve the technical problems, the invention provides a treatment method for improving the crease resistance and ultraviolet resistance of silk, which comprises the following steps:
(1) preparing a finishing liquid, wherein the finishing liquid comprises citric acid, a reactive ultraviolet absorbent and a non-ionic wetting agent, and the pH value of the finishing liquid is alkalescent;
(2) and (3) treating the silk by using the finishing liquid as a treating liquid and adopting a cold rolling process to obtain the silk with crease resistance and ultraviolet resistance.
Preferably, in step (1), the reactive ultraviolet absorber is an ultraviolet absorber containing a vinylsulfone sulfate group.
Preferably, in the step (1), the dosage of the citric acid is 160-200 g/L.
Preferably, in the step (1), the amount of the reactive ultraviolet absorber is 20-30 g/L.
Preferably, in the step (1), the finishing liquid further comprises sodium citrate.
Preferably, in the step (1), the amount of the sodium citrate is 40-60 g/L.
Preferably, in step (1), the pH of the finishing liquor is 8.5.
Preferably, in the step (2), the cold pad-batch process specifically comprises:
adding the finishing liquid into a rolling groove of a padder, and padding the finishing liquid on the padder by the silk; during cloth falling, rolling and wrapping, and rolling the obtained silk cloth on a rolling device to operate under the constant temperature condition; and then the silk with the anti-wrinkle and anti-ultraviolet performances is obtained after washing and drying.
Preferably, in the step (2), the silk cloth roll is operated at a temperature of 30 to 40 ℃.
Preferably, in the step (2), the running time of the silk cloth roll on the rolling device is 10-16 h.
The invention has the beneficial effects that:
1. the invention adopts citric acid as the formaldehyde-free crease-resistant finishing agent of silk, and has the characteristics of low cost of the crease-resistant agent and no formaldehyde in the finished silk.
2. According to the invention, citric acid is used for carrying out a crosslinking reaction with silk under the conditions of alkalescence, low temperature and long-time stacking, so that the phenomenon of silk yellowing caused by crosslinking by adopting a rolling and baking process is avoided; under the condition, the reactive ultraviolet absorbent containing the vinylsulfone sulfate can be covalently combined with the silk, so that one-step crease-resistant and ultraviolet-resistant finishing is realized, the energy consumption is reduced, the process flow is shortened, and the obtained silk has good washing fastness of the ultraviolet protection effect.
3. In the invention, citric acid and silk are subjected to a crosslinking reaction under a weakly alkaline condition, so that the addition of sodium hypophosphite which plays a catalytic role in a rolling, baking and crosslinking process is avoided, and the problem of phosphorus-containing wastewater discharge does not exist.
4. In the invention, the sodium citrate added in the finishing agent plays a role in accelerating the dyeing of the anionic ultraviolet absorbent, so that the addition of accelerating agents such as anhydrous sodium sulphate or salt and the like is avoided.
5. The treatment method of the invention is ecological, safe, nontoxic, simple in process and easy to implement. The silk product produced by the method has good crease-resistant and ultraviolet protection functions, is easy to care and is suitable for making clothes worn in summer.
Detailed Description
The present invention is further described below in conjunction with specific examples to enable those skilled in the art to better understand the present invention and to practice it, but the examples are not intended to limit the present invention.
In the following examples of the invention, the wrinkle resistance of silk is expressed as the wrinkle recovery angle, which is measured according to the vertical method in GB/T3819-1997 method for measuring the recovery angle of crease of textile fabrics, and the sum of the slow recovery angles in the warp and weft directions is used as an index for evaluating the wrinkle resistance of silk. The ultraviolet resistance of the silk is tested according to GB/T18830-2009 evaluation of ultraviolet resistance of textiles. The breaking strength of the silk in the warp direction was tested according to GB/T3923.1-2013 textile fabric tensile Property. The Lab value (Hunter color system, D65 illuminant and 10 ° observation angle) of silk was measured with a color meter, and the Hunter Whiteness (WI) of the silk was calculated as follows:
WI＝100–[(100–L)2+a2+b2]1/2。
example 1
The embodiment provides a method for improving crease resistance and ultraviolet resistance of electric spinning silk by adopting a cold rolling process, which comprises the following steps:
(1) preparing an aqueous solution containing 160g/L of citric acid, 40g/L of sodium citrate and 30g/L of a reaction type ultraviolet absorbent UV-Sun Cel (Henzmann International Inc.) containing vinylsulfone sulfate and 0.5g/L of peregal O (polyoxyethylene ether non-ionic wetting agent), and adjusting the pH value to 8.5 by using dilute hydrochloric acid and dilute caustic soda solution;
(2) adding the finishing liquid obtained in the step (1) into a mangle of a padder, padding the finishing liquid on the padder by using the electric spinning silk, rolling and wrapping during doffing, and then operating the electric spinning silk on a winding device for 10 hours in a constant temperature environment at 30 ℃; and then washing the obtained electric spinning silk on an open-width washing machine, and finally drying the electric spinning silk on a stenter to obtain the electric spinning silk with the functions of crease resistance and ultraviolet resistance.
The crease and uv resistance as well as the breaking strength and hunter whiteness of the unfinished and finished electro-spun fabrics were tested. The results showed that the wrinkle recovery angle, uv protection factor, breaking strength and hunter whiteness of the unfinished electro-spun fabric were 205 °, 6.3, 495N and 92.5, respectively, while the wrinkle recovery angle, uv protection factor, breaking strength and hunter whiteness of the finished electro-spun fabric were 258 °, 30.2, 463N and 87.3, respectively. Compared with the electric spinning without finishing, the crease resistance and the ultraviolet resistance of the finished electric spinning are obviously improved, the breaking strength is reduced by 6.5 percent, and the whiteness is reduced very little.
Example 2
The embodiment provides a method for improving crease resistance and ultraviolet resistance of crepe satin plain silk by adopting a cold pad-batch process, which comprises the following steps:
(1) preparing an aqueous solution containing 200g/L of citric acid, 60g/L of sodium citrate and 20g/L of a reaction type ultraviolet absorbent UV-Sun Cel (Henzmann International Inc.) containing vinylsulfone sulfate and 0.5g/L of peregal O (polyoxyethylene ether nonionic wetting agent), and adjusting the pH value to 8.5 by using dilute hydrochloric acid and a dilute caustic soda solution;
(2) adding the finishing liquid obtained in the step (1) into a rolling groove of a padder, padding the crepe satin plain silk with the finishing liquid on the padder, rolling and wrapping during cropping, and then rolling the crepe satin plain silk in a rolling device for 16 hours in a constant temperature environment at 40 ℃; and then washing the obtained crepe satin plain silk on an open width washing machine, and finally drying on a stenter to obtain the crepe satin plain silk with crease resistance and ultraviolet resistance.
The crease and uv resistance as well as the breaking strength and hunter whiteness of the unfinished and finished crepe satin plain were tested. The results showed that the wrinkle recovery angle, the ultraviolet protection factor, the breaking strength and the hunter whiteness of the unfinished crepe satin were 238 °, 8.6, 876N and 93.1, respectively, while the wrinkle recovery angle, the ultraviolet protection factor, the breaking strength and the hunter whiteness of the finished crepe satin were 287 °, 35.7, 832N and 88.4, respectively. Compared with the plain crepe satin without finishing, the crease resistance and the uvioresistant performance of the plain crepe satin with finishing are obviously improved, the breaking strength is reduced by 5.0 percent, and the whiteness is reduced slightly.
The above examples illustrate that the method for performing anti-wrinkle and ultraviolet protection functions on silk by using citric acid and reactive ultraviolet absorber under the cold pad-batch process conditions provided by the invention has the advantages of short processing process flow, low energy consumption, easy implementation, no yellowing phenomenon of the processed silk, good anti-wrinkle and ultraviolet protection performance, and the like.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (7)
1. A treatment method for improving crease resistance and ultraviolet resistance of silk is characterized by comprising the following steps:
(1) preparing a finishing liquid, wherein the finishing liquid comprises citric acid, a reactive ultraviolet absorbent and a non-ionic wetting agent, and the pH value of the finishing liquid is alkalescent; the reactive ultraviolet absorbent is an ultraviolet absorbent containing vinylsulfone sulfate, the dosage of the reactive ultraviolet absorbent is 20-30 g/L, and the dosage of the citric acid is 160-200 g/L;
(2) and (3) treating the silk by using the finishing liquid as a treating liquid and adopting a cold rolling process to obtain the silk with crease resistance and ultraviolet resistance.
2. The treatment method for improving wrinkle resistance and ultraviolet resistance of silk as claimed in claim 1, wherein in step (1), the finishing liquid further comprises sodium citrate.
3. The treatment method for improving wrinkle resistance and ultraviolet resistance of silk as claimed in claim 2, wherein in the step (1), the amount of the sodium citrate is 40-60 g/L.
4. The treatment method for improving wrinkle resistance and ultraviolet resistance of silk according to claim 1, wherein in step (1), the pH value of the finishing liquid is 8.5.
5. The treatment method for improving wrinkle resistance and ultraviolet resistance of silk according to claim 1, wherein in the step (2), the cold rolling process specifically comprises the following steps:
adding the finishing liquid into a rolling groove of a padder, and padding the finishing liquid on the padder by the silk; during cloth falling, rolling and wrapping, and rolling the obtained silk cloth on a rolling device to operate under the constant temperature condition; and then the silk with the anti-wrinkle and anti-ultraviolet performances is obtained after washing and drying.
6. The treatment method for improving wrinkle resistance and ultraviolet resistance of silk as claimed in claim 5, wherein in the step (2), the running temperature of the silk cloth roll is 30-40 ℃.
7. The treatment method for improving wrinkle resistance and ultraviolet resistance of silk as claimed in claim 5, wherein in the step (2), the running time of the silk cloth rolled on the rolling device is 10-16 h.
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| CN201811391816.6A CN109576996B (en) | 2018-11-21 | 2018-11-21 | Treatment method for improving crease resistance and ultraviolet resistance of silk |
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| CN201811391816.6A CN109576996B (en) | 2018-11-21 | 2018-11-21 | Treatment method for improving crease resistance and ultraviolet resistance of silk |
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| CN109576996A CN109576996A (en) | 2019-04-05 |
| CN109576996B true CN109576996B (en) | 2021-07-13 |
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| CN115772725A (en) * | 2022-11-03 | 2023-03-10 | 苏州经贸职业技术学院 | Preparation of functional fullerene fiber blended silk fabric |
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| CN105040485A (en) * | 2015-08-14 | 2015-11-11 | 太仓市诚乐化纤有限公司 | Environmental-friendly dyeing and finishing process of real silk fabric |
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2018
- 2018-11-21 CN CN201811391816.6A patent/CN109576996B/en active Active
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| CN101168928A (en) * | 2007-08-20 | 2008-04-30 | 罗海航 | Reactive dyestuff dyeing and fixing technique and printing and dyeing auxiliary agent used for the same |
| CN101187164A (en) * | 2007-11-28 | 2008-05-28 | 南通大学 | Anti-creasing anti-bacterial anti-violet composite function silk fabric and its preparation method |
| CN102154853A (en) * | 2010-12-14 | 2011-08-17 | 江苏华佳丝绸有限公司 | Cold pad batch dyeing process for silk broadcloth |
| CN102634973A (en) * | 2012-04-16 | 2012-08-15 | 盛虹集团有限公司 | Citric acid wrinkle proofing technology for real silk fabrics |
| CN104499276A (en) * | 2014-12-16 | 2015-04-08 | 东华大学 | Non-phosphorus polycarboxylic anti-crease finishing liquid with catalyst and finishing method thereof |
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