CN102605619B - Sericin post-finishing method for cotton fabrics - Google Patents
Sericin post-finishing method for cotton fabrics Download PDFInfo
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Abstract
The invention discloses a sericin post-finishing method for cotton fabrics, which comprises the following steps: (a) configuring settling impregnation liquid: dissolving 3-5% of dissolvable sericin powder counted by mass in hot water, and then adding 1-3% of chitosan quaternary ammonium salt, fully stirring and dissolving, and adding 4-6% of cross-linking agent, and (b) completely steeping the cotton fabrics in the settling impregnation liquid at a solution bath ratio of 1:(30-50), steeping for at least 20 minutes, twice steeping and twice rolling, keeping mangle expression more than 80%, anddrying, thereby obtaining the cotton fabrics. The invention develops the post-finishing method special for the cotton fabrics. The cotton fabrics prepared according to the post-finishing method have better washing fastness and anti-bacteria rate; after the cotton fabrics are washed for five times, a dissolving loss rate is about 0.21% and the anti-bacteria rate is 93.8%; the practical use requirement is fully met; and an extraordinary technical effect is obtained.
Description
Technical field
The present invention relates to a kind of sericin afterfinish method of COTTON FABRIC.
Background technology
The main body of silk fiber is fibroin, is coating silk gum in the fibroin periphery, and silk gum plays protective effect and adhesive action to fibroin.Silk gum is a kind of biomaterial of function admirable, provides very important application material for developing new functional biological material.For example, silk gum can be used as the additive of synthesized polymer material, and the physical property of the macromolecular material of gained can not only improve, and its macromolecular material can be degraded rapidly by microorganism, becomes excellent environment-friendly materials; Mixing by silk gum and fibroin the silk protein membrane that forms will be a kind of artificial skin that the exploitation future is arranged.Along with the research of Chinese scholars to silk gum structure and performance, silk gum all is widely applied in all fields.Studies show that, small-molecular weight (mean molecule quantity is that 15000 ~ 30000D) silk gum and hydrolysate thereof have excellent moisture absorption, moisture releasing performance and oxidation resistance, and have restraint of tyrosinase active, improve looks, nourish many effects such as skin, check melanin.Therefore, the textiles of sericin afterfinish particularly is applied to directly contact the underwear material of human body skin, has caused the great attention of Chinese scholars.Why people extremely dote on the textiles of sericin afterfinish, are that soft and comfortable, the fabric that scribbles simultaneously silk gum also has significant antibacterial effect because the textiles through sericin afterfinish has good moisturizing, humidity, antistatic property.Therefore silk gum has wide DEVELOPMENT PROSPECT as a kind of new textile health hygienic finishing functions material.
Yet, due to the functional group of sericin shortage with fiber-reactive, in order to obtain the finishing effect of durability, must select the crosslinking agent of high response, between sericin and fiber, the sufficient covalent cross-linking of generation reacts in order to make.Existing crosslinking agent mainly contains epoxy compounds, it can be coated in silk gum on fabric equably, fabric after applying, hygroscopicity has larger improvement, but needing the high temperature through 150 ℃ of left and right to bake, this crosslinking agent could complete crosslinking curing on fabric, and high temperature bakes and very easily causes the fabric yellowing, the hidden danger that exists fabric strength to descend, and its feel is relatively poor.
Japanese patent laid-open 9-31847 has reported a kind of functional textile product and manufacture method thereof, take chitin as crosslinking agent with the silk gum coating in textiles.Yet the textiles feel that it obtains is coarse, and washability is relatively poor.
Chinese invention patent CN101694060B discloses a kind of sericin afterfinish method of cashmere product, the washability of the cashmere product of its acquisition is better, but experimental results show that, when said method applies to COTTON FABRIC, the washability of the COTTON FABRIC that obtains is relatively poor, the dissolve-loss ratio that is silk gum is higher, can't normal use, and said method and reckon without the problem of bacteriostasis rate.
Chinese invention patent application CN101279103A discloses a kind of fibroin composite coating liquid and preparation method thereof and application, and its crosslinking agent used is silkworm chrysalis chitosan, shitosan or hydrocarbyl si lanes compounds and catalyst Z nCl
2Compound.Yet, experiment showed, and utilize above-mentioned coating solution to carry out rear arrangement to COTTON FABRIC, the washability of the COTTON FABRIC of acquisition is relatively poor, can't normal use.
Therefore, how COTTON FABRIC is carried out sericin afterfinish, to obtain the good COTTON FABRIC of washability, become the technical barrier of thirsting in the industry solving always but failing all the time to succeed.
Summary of the invention
The object of the invention is to provide a kind of sericin afterfinish method of COTTON FABRIC.
For achieving the above object, the technical solution used in the present invention is: a kind of sericin afterfinish method of COTTON FABRIC comprises the steps:
(a) configuration arranges maceration extract: in mass, 3 ~ 5% ease of solubility sericin powder is used the hot water dissolving, then add wherein 1 ~ 3% chitosan quaternary ammonium salt, fully after stirring and dissolving, add 4 ~ 6% crosslinking agent;
The mean molecule quantity of described ease of solubility sericin powder is 18000 ~ 25000D; The temperature of described hot water is 80 ~ 95 ℃; Described crosslinking agent comprises dispersant Sodium Polyacrylate and silane coupler, and both mass ratioes are 3.0 ~ 3.5:3 ~ 4; Described silane coupler is selected from vinyl silanes, amino silane, methacryloxypropyl silane, hydrosulphonyl silane or ureido silane;
(b) with the COTTON FABRIC thorough impregnation in above-mentioned arrangement maceration extract, solution bath flood 20 minutes than for 1:30 ~ 50 at least, two soak two rolls, pick-up rate is dried greater than 80%, can obtain COTTON FABRIC.
In technique scheme, described step (b) is boiled COTTON FABRIC more than 30 minutes before in advance in boiling water, washing, oven dry.
The present invention asks for protection the COTTON FABRIC that obtains according to above-mentioned afterfinish method simultaneously.
Mechanism of the present invention is: the pH value of silk gum isoelectric point is 3.8 ~ 4.5, lagos rubber negative electrical charge in (the pH value is 7.0) in the aqueous solution, and the chitosan quaternary ammonium salting liquid is positively charged, with electronegative well combination of silk gum, formed microparticle, this microparticle itself has certain adhesive action to COTTON FABRIC, has more further improved stickiness and the washability of silk gum to COTTON FABRIC by the effect of crosslinking agent.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. the present invention has developed a kind of afterfinish method that is exclusively used in COTTON FABRIC, has washability and bacteriostasis rate preferably by its COTTON FABRIC that makes, and has solved the technical barrier of thirsting in the industry solving always but failing all the time to succeed.
2. experiment showed, the silk gum coated cotton fabric that the present invention makes, be about 0.21% at the dissolve-loss ratio that washs after 5 times, its bacteriostasis rate is 93.8%, satisfies actual operation requirements fully, has obtained beyond thought technique effect.
3. amino acid analysis shows, the hydrophilic amino acid content of the cotton goods that the present invention obtains improves, and its absorb-discharge humid, heat-insulating property and poisture-penetrability be improved, and soft, have a smooth feeling, having improved the wearing comfort of human body dress, is a kind of cotton goods of novel high added value.
4. simple, the easy operating of preparation method of the present invention, but and energy savings, have a good application prospect.
Description of drawings
Accompanying drawing 1 is the humidity absorption and release performance comparison figure of the COTTON FABRIC before and after in the embodiment of the present invention one, silk gum arranges.
The specific embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment one
A kind of sericin afterfinish method of COTTON FABRIC comprises the steps:
(a) configuration arranges maceration extract: in mass, 5% ease of solubility sericin powder is used the hot water dissolving, then add wherein 2% chitosan quaternary ammonium salt, fully after stirring and dissolving, add 5% crosslinking agent;
The mean molecule quantity of described ease of solubility sericin powder is 25000D; The temperature of described hot water is 90 ℃; Described crosslinking agent comprises dispersant Sodium Polyacrylate and silane coupler, and both mass ratioes are 3.0:4; Described silane coupler is selected from vinyl silanes, amino silane, methacryloxypropyl silane, hydrosulphonyl silane or ureido silane;
(b) with the COTTON FABRIC thorough impregnation in above-mentioned arrangement maceration extract, solution bath flood 20 minutes than for 1:40 at least, two soak two rolls, pick-up rate is dried greater than 80%, can obtain COTTON FABRIC.
Comparative Examples one
Disclosed method according to Chinese invention patent CN101694060B is carried out sericin afterfinish to COTTON FABRIC, obtains COTTON FABRIC.
Comparative Examples two
Adopt the disclosed fibroin composite coating liquid of Chinese invention patent application CN101279103A to carry out rear arrangement to COTTON FABRIC, obtain COTTON FABRIC.
Then the COTTON FABRIC of embodiment one and Comparative Examples one, Comparative Examples two is carried out the test of dissolve-loss ratio and bacteriostasis rate, result is as follows:
By above-mentioned test as seen, with respect to Comparative Examples one and Comparative Examples two for, the COTTON FABRIC that the present embodiment one obtains has washability and bacteriostasis rate preferably, can satisfy the instructions for use of reality fully, has obtained beyond thought technique effect.
Then the COTTON FABRIC that above-mentioned preparation method is obtained is tested, and is specific as follows:
Test one
Tested gaining effect and the washability of the COTTON FABRIC of the present embodiment, it is as shown in the table for result:
As seen from the above table, the COTTON FABRIC after arrangement with arrange before compare, wash 2 weightening finishes 2.30%, wash 3 weightening finishes 1.92%, wash 5 times and increase weight 1.73%, dissolve-loss ratio is relatively low later on to wash 3 times.Therefore its washing-resistant effect is better.
Test two
Tested the regain of the COTTON FABRIC after silk gum arranges, and contrasted with common unfinished COTTON FABRIC thing, result is as shown in the table:
The regain of COTTON FABRIC before and after silk gum arranges
As can be seen from the table, the regain of unfinished COTTON FABRIC is 7.34, the regain of the COTTON FABRIC after silk gum arranges (not washing) is 7.43, this explanation is along with the increase of fabric face content of silk gum (hydrophilic amino acid content), the regain of the COTTON FABRIC after silk gum arranges improves gradually, has even surpassed unfinished COTTON FABRIC.
Test three
Tested the drapability of the COTTON FABRIC after silk gum arranges, and contrasted with common unfinished COTTON FABRIC thing, result is as shown in the table:
The drapability of COTTON FABRIC before and after silk gum arranges
As can be seen from the table, the suspended coefficient of the COTTON FABRIC after silk gum arranges is larger, and when the fabric sample area that dangles is larger, namely suspended coefficient is larger, the wrinkle resistance of expression fabric increases, and therefore the wrinkle resistance of the COTTON FABRIC of explanation after silk gum arranges has had raising to a certain degree.
Test four
Tested the poisture-penetrability of the COTTON FABRIC after silk gum arranges, and contrasted with common unfinished COTTON FABRIC thing, result is as shown in the table:
The vapor transfer rate of COTTON FABRIC before and after silk gum arranges
Above-mentioned test result is all the mean value after repeatedly testing, and as can be seen from the table, in the sample of the COTTON FABRIC before and after silk gum arranges, the average vapor transfer rate of the COTTON FABRIC that COTTON FABRIC and silk gum arrange is respectively 2849.34 g/m
2.d, namely the COTTON FABRIC poisture-penetrability that arranges of silk gum is better, and along with the increase of silk gum concentration, the vapor transfer rate of the COTTON FABRIC after arrangement also increases thereupon.Steam sees through fabric and mainly contains dual mode, and a kind of is the fiber of the one side that contacts with highly humid air of fabric, moisture absorption from highly humid air, and steam is by the another side that is passed to fabric in fiber, and to hanging down moisture releasing in humid air; Another kind of mode is that steam is directly by between yarn in fabric and the space between fiber, to the diffusion on the other hand of fabric.In this experiment, because the size of sample of choosing, finishing condition are identical, therefore can think that poisture-penetrability difference is mainly because front a kind of mode causes, be namely because silk gum causes in the fixed amount of fabric face.The shared large percentage of hydrophilic amino acid in silk gum, COTTON FABRIC increases through the hydrophilic group that silk gum arranges the rear surface, therefore under identical condition, the poisture-penetrability of the COTTON FABRIC that silk gum arranges is better.
Test five
Tested the humidity absorption and release performance of the COTTON FABRIC after silk gum arranges, and contrasted with common unfinished COTTON FABRIC thing, result as shown in Figure 1.As seen from the figure, the moisture absorption and desorption property of the COTTON FABRIC after silk gum arranges is greater than unfinished COTTON FABRIC, and this illustrates the surface of cotton fabric adhering sericin after silk gum arranges, and moisture absorption and desorption property is relatively better, has improved the wearing comfort that human body wears clothes.
Test six
Tested the heat insulating ability of the COTTON FABRIC after silk gum arranges, and contrasted with common unfinished COTTON FABRIC thing, result is as follows:
As seen from the above table, insulation rate, the clo value of the COTTON FABRIC after silk gum arranges have increased respectively 2.16% and 0.0212 than unfinished COTTON FABRIC thing, and heat transfer coefficient has reduced 7.32W/m
2. ℃, insulation rate, clo value are larger, illustrate that the warmth retention property of fabric is better, and heat transfer coefficient is lower, illustrates that warmth retention property is better.Prove by experiment, the warmth retention property of the COTTON FABRIC after silk gum arranges increases.
Claims (3)
1. the sericin afterfinish method of a COTTON FABRIC, is characterized in that, comprises the steps:
(a) configuration arranges maceration extract: in mass, 3 ~ 5% ease of solubility sericin powder is used the hot water dissolving, then add wherein 1 ~ 3% chitosan quaternary ammonium salt, fully after stirring and dissolving, add 4 ~ 6% crosslinking agent;
The mean molecule quantity of described ease of solubility sericin powder is 18000 ~ 25000D; The temperature of described hot water is 80 ~ 95 ℃; Described crosslinking agent comprises dispersant Sodium Polyacrylate and silane coupler, and both mass ratioes are 3.0 ~ 3.5:3 ~ 4; Described silane coupler is selected from vinyl silanes, amino silane, methacryloxypropyl silane, hydrosulphonyl silane or ureido silane;
(b) with the COTTON FABRIC thorough impregnation in above-mentioned arrangement maceration extract, solution bath flood 20 minutes than for 1:30 ~ 50 at least, two soak two rolls, pick-up rate is dried greater than 80%, can obtain COTTON FABRIC.
2. the sericin afterfinish method of COTTON FABRIC according to claim 1, it is characterized in that: described step (b) is boiled COTTON FABRIC more than 30 minutes before in advance in boiling water, washing, oven dry.
3. the COTTON FABRIC that obtains of afterfinish method according to claim 1.
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| CN 201210082016 CN102605619B (en) | 2012-03-26 | 2012-03-26 | Sericin post-finishing method for cotton fabrics |
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|---|---|---|---|---|
| US10287728B2 (en) | 2014-12-02 | 2019-05-14 | Evolved By Nature, Inc. | Silk performance apparel and products and methods of preparing the same |
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| CN103132156B (en) * | 2013-02-22 | 2016-04-13 | 广西立盛茧丝绸有限公司 | A kind of silk reparation method |
| KR20180072664A (en) | 2015-07-14 | 2018-06-29 | 실크 테라퓨틱스, 인코퍼레이티드 | Silk performance garments and products and their manufacturing methods |
| CN106758226A (en) * | 2016-11-24 | 2017-05-31 | 江苏爱西施科技服务咨询股份有限公司 | A kind of dressing liquid of improvement contact changes in temperature sense containing modified sericin and preparation method thereof |
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