CN103668969A - Method for preparing functional protein fiber - Google Patents
Method for preparing functional protein fiber Download PDFInfo
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- CN103668969A CN103668969A CN201310635629.9A CN201310635629A CN103668969A CN 103668969 A CN103668969 A CN 103668969A CN 201310635629 A CN201310635629 A CN 201310635629A CN 103668969 A CN103668969 A CN 103668969A
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Abstract
The invention discloses a method for preparing functional protein fiber. The method comprises the following steps: firstly, dipping the fiber into a finishing solution; then dewatering and drying the dipped fiber; finally baking or microwave-processing the dried fiber to obtain the functional fiber, wherein the finishing solution is prepared from the following four ingredients in percentage by weight: 5-15 percent of preshrinking aqueous solution, 5-20 percent of vinyl monomer, 0.15-1.6 percent of initiator and the rest of water. The functional protein fiber prepared by the method has a good soil release performance and good washing fastness and the hand feeling of subsequent fabrics is not influenced. The processing method has low production cost and stronger operability and is suitable for industrial application.
Description
Technical field
The present invention relates to a kind of finishing technique of fiber, be specifically related to a kind of preparation method of functional protein fiber.
Background technology
Textiles is antifouling is to reduce or reduce dirt gathering on textiles, and easily decontamination is to increase or improve the clearance that has accumulated in dirt on textiles.Generally, by changing fabric tissue, fiber surface state and fiber surface performance etc., can obtain soil resistance, the above two are favourable to reducing or reducing gathering of dirt, particularly solid dirt; The latter is favourable to reducing or reducing oily dirt.Biodiversity Characteristics because of textiles, the above two are difficult to change often, so people often adopt chemical finishing to change the surface property of fiber, to improve the grease proofness of textiles, fabric is had and be difficult for by dirt, particularly oily dirt is difficult for by the performance of dirt.
The oleophobic property of fiber or textile surface is stronger or hydrophobicity is stronger, and fiber surface can be lower or fiber surface tension force is less, and the grease proofness of fabric or oil-stain-preventing are better.Therefore, the material of low-surface-energy is usually used in the waterproof of fabric, grease proofing or antifouling chemical finishing.Yet, textiles is processed through low-surface-energy material, though there is good grease proofness or oil-stain-preventing, once but be stain, the oiliness particularly forming through friction is stain, in washing process, because of the surface tension of water or washing agent textiles or the fiber higher than antifouling processing, the dirt therefore staiing is difficult to be removed, and antifouling the and easy decontamination of textiles is conflict.For improving the soil release performance energy of textiles, when chemical finishing, to improve the hydrophily of fabric or fiber, just can make the oily dirt staiing more easily be removed.Therefore, usually by the balanced action between grease proofness and hydrophily, reach the object that the existing stain resistance of fiber has again soil release performance.
At present, studying the more fibre chemistry finishing agent with low-surface-energy is fluorine resin, acrylic acid series copolymer and polyvinylpyrrolidone.Chinese patent application 201110385595.3 discloses a kind of easy decontamination Polyester Textiles, with absorptive acrylate, modified poly ester, modified polyurethane and hydrophobic carbon fluorine chain, form hydrophilic-hydrophobic copolymer arranges dacron, prepares the perfluorooctanoic acid of low content or the easy decontamination Polyester Textiles of PFOS; Chinese patent application 201210272038.5 discloses the processing method of a kind of three anti-easy care garment fabrics, with three-proof finishing agent (organic fluorine) and soil-releasing finishing agent, with bathing, process, not only there is the antifouling function of waterproof and oilproof, and after contamination, dirt is easily washed off, has decontaminable effect; Chinese patent application 201010005907.9 discloses a kind of polymeric decontamination color fixing agent for fabric, this decontamination color fixing is by 2-acrylamide-2-methyl propane sulfonic, acrylamide, dimethyl diallyl ammonium chloride, dimethyldiallylammonium, high molecular PVP and emulsifying agent, by initator, to be caused the copolymer forming, finish fabric has hydrophilic wet and easy dirt-removing power, can improve fastness to wet rubbing.
Existing method for sorting has certain easy clean effect, but has the problem of the number of times of resistance to home washings deficiency; This is because chemical finishing agent is difficult to react with fiber, chemical finishing agent only covers fiber surface, though add crosslinking agent can improve the binding strength of chemical finishing agent and fiber, improve water-wash resistance, but can cause that textile touch hardens, the azelons such as the cocoon fiber that is feature based on softness especially, wool fibre, hardening of feel can be brought the decline of textiles added value.
Summary of the invention
The preparation method who the object of this invention is to provide a kind of functional protein fiber, the functional protein fiber of preparation has soil release performance thus, has strong, the soft feature of washing fastness simultaneously.
To achieve the above object of the invention, the technical solution used in the present invention is:
A preparation method for functional protein fiber, comprises the following steps: first by fiber impregnation finisher solution; Then the azelon after dipping is dewatered, dried; Finally by the azelon after drying through baking or microwave treatment obtains described functional protein fiber; Wherein, described finisher solution consists of by mass percentage following four kinds of components:
The preshrunk body aqueous solution 5～15%
Vinyl monomer 5～20%
Initator 0.15～1.6%
Water surplus
Described vinyl monomer is selected from any two or more mixture in acrylic acid derivative, NVP, acrylamide derivative;
Described initator is selected from any one or more than one mixture in ammonium persulfate, sodium peroxydisulfate, potassium peroxydisulfate;
In the described preshrunk body aqueous solution, the mass concentration of preshrunk body is 25～55%;
In the described preshrunk body aqueous solution, preshrunk body is acrylic acid derivative/NVP preshrunk body, acrylic acid derivative/acrylamide derivative preshrunk body or acrylic acid derivative/NVP/acrylamide derivative preshrunk body.
In technique scheme, acrylic acid derivative and NVP copolymerization that described acrylic acid derivative/NVP preshrunk body is 1: 0.7～1.3 by mass ratio obtain; Acrylic acid derivative and acrylamide derivative copolymerization that described acrylic acid derivative/acrylamide derivative preshrunk body is 1: 0.7～1.3 by mass ratio obtain; Acrylic acid derivative, NVP, acrylamide derivative copolymerization that described acrylic acid derivative/NVP/acrylamide derivative preshrunk body is 1: 1: 0.3～0.5 by mass ratio obtain.
In technique scheme, described acrylic acid derivative is acrylic acid or methacrylic acid; Described acrylamide derivative is acrylamide, Methacrylamide or N hydroxymethyl acrylamide.
In technique scheme, described dipping temperature is 20～50 ℃, and dip time is 5～10 minutes.
In technique scheme, described baking temperature is 120～150 ℃, and the time of baking is 2～5 minutes; The frequency of described microwave treatment is that 2450MHz, microwave output power are 500～1500W, and the processing time is 4～8 minutes.
In technique scheme, described azelon is cocoon fiber, wool fibre or rabbit fur fibre.
The dehydration of impregnation of fibers in the present invention, oven dry belong to prior art.
The preshrunk body aqueous solution disclosed by the invention adopts solution initiated polymerization method to prepare, and is specially:
4～7% potassium peroxydisulfate of water, acrylic acid derivative, NVP and vinyl monomer gross mass is joined in reactor, in 60～90 ℃, react and within 3～5 hours, obtain acrylic acid derivative/NVP preshrunk body aqueous solution;
4～7% potassium peroxydisulfate of water, acrylic acid derivative, acrylamide derivative and vinyl monomer gross mass is joined in reactor, in 60～90 ℃, react and within 3～5 hours, obtain acrylic acid derivative/acrylamide derivative preshrunk body aqueous solution;
4～7% potassium peroxydisulfate of water, acrylic acid derivative, acrylamide derivative, NVP and vinyl monomer gross mass is joined in reactor, in 60～90 ℃, react and within 3～5 hours, obtain acrylic acid derivative/NVP/acrylamide derivative preshrunk body aqueous solution.
Because technique scheme is used, the present invention compared with prior art has following advantages:
(1) the present invention has effectively improved the soil release performance of azelon by acrylic compounds preshrunk body as finishing agent; By vinyl monomer, strengthened the adhesion of finishing agent and fiber, efficiently solved the poor problem of easy-to-remove-dirt fabric washing fastness, after 30 washings, the soil removal efficiency of azelon still approaches 90%;
(2) the functional protein fiber that prepared by method of the present invention has the low and stronger advantage of operability of production cost, and while also having advantages of the azelon of preventing washing, easily fluffing, also has soft feel;
(3) preparation method of the present invention is simple, easy operating, and preparation time is short, is applicable to suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is the infrared spectrogram of the preshrunk body of embodiment 1 preparation;
Fig. 2 is the infrared spectrogram of the preshrunk body of embodiment 3 preparations;
Fig. 3 is the infrared spectrogram of unfinished cocoon fiber in embodiment 7;
Fig. 4 is the infrared spectrogram of the functional real silk fiber of embodiment 7 preparations;
Fig. 5 is the functional real silk fiber of embodiment 7 preparations, the infrared spectrogram after 30 washings.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
The preparation of the preshrunk body aqueous solution: 20Kg acrylic acid and 15KgN-vinyl-2-pyrrolidone and 65Kg water are joined respectively in reactor, warming while stirring to 60 ℃, add again 1.75Kg potassium peroxydisulfate, react 5 hours, make mass concentration and be acrylic acid/NVP preshrunk body aqueous solution of 35%.
Accompanying drawing 1 is the infrared spectrogram of preshrunk body in the above-mentioned preshrunk body aqueous solution, and from accompanying drawing 1, preshrunk body is a kind of polyacrylic acid/pyrrolidone polymer.
Embodiment 2
The preparation of the preshrunk body aqueous solution: 15Kg methacrylic acid and 19Kg acrylamide and 66Kg water are joined respectively in reactor, warming while stirring to 70 ℃, add again 1.70Kg potassium peroxydisulfate, react 4 hours, make mass concentration and be methacrylic acid/acrylamide preshrunk body aqueous solution of 34%.
Embodiment 3
The preparation of the preshrunk body aqueous solution: 15Kg acrylic acid, 15KgN-vinyl-2-pyrrolidone, 10Kg acrylamide and 60Kg water join respectively in reactor, warming while stirring to 80 ℃, add again 2.40Kg potassium peroxydisulfate, react 3 hours, make mass concentration and be acrylic acid/NVP/acrylamide preshrunk body aqueous solution of 40%.
Accompanying drawing 2 is the infrared spectrogram of preshrunk body in the above-mentioned preshrunk body aqueous solution, and from accompanying drawing 2, preshrunk body is a kind of polyacrylic acid/pyrrolidones/acrylamide polymer.
Embodiment 4
In batch dying machine, add respectively 5Kg acrylic acid/NVP preshrunk body aqueous solution, 2Kg acrylic acid, 3KgN-vinyl-2-pyrrolidone, 0.3Kg potassium peroxydisulfate and 89.7Kg water, at room temperature stir, then add 10～20Kg cocoon fiber to soak 5 minutes, take out cocoon fiber, through centrifugal dehydration and oven dry, in the microwave equipment that to be placed on frequency again and to be 2450MHz, microwave output power be 1000W, process 4 minutes, make functional real silk fiber.
Embodiment 5
In batch dying machine, add respectively 10Kg methacrylic acid/acrylamide preshrunk body aqueous solution, 3Kg methacrylic acid, 7Kg acrylamide, 0.7Kg potassium peroxydisulfate and 79.3Kg water, at room temperature stir, then add 10～20Kg cocoon fiber to soak 10 minutes, take out cocoon fiber, through centrifugal dehydration and oven dry, in the microwave equipment that to be placed on frequency again and to be 2450MHz, microwave output power be 1000W, process 6 minutes, make functional real silk fiber.
Embodiment 6
In batch dying machine, add respectively 8 Kg acrylic acid/NVP/acrylamide preshrunk body aqueous solution, 3Kg acrylic acid, 10KgN-vinyl-2-pyrrolidone, 5Kg acrylamide, 1.3Kg potassium peroxydisulfate and 72.7Kg water, at room temperature stir, then add 10～20Kg cocoon fiber to soak 8 minutes, take out cocoon fiber, through centrifugal dehydration and oven dry, in the microwave equipment that to be placed on frequency again and to be 2450MHz, microwave output power be 1000W, process 5 minutes, make functional real silk fiber.
Embodiment 7
In batch dying machine, add respectively 15 Kg acrylic acid/NVP/acrylamide preshrunk body aqueous solution, 5Kg acrylic acid, 10KgN-vinyl-2-pyrrolidone, 3Kg acrylamide, 1.3Kg potassium peroxydisulfate and 65.7Kg water, at room temperature stir, then add 10～20Kg cocoon fiber to soak 8 minutes, take out cocoon fiber, through centrifugal dehydration and oven dry, then at 120 ℃, high temperature bakes processing 3 minutes, makes functional real silk fiber.
Using unfinished cocoon fiber as reference, carry out infrared and soil removal efficiency mensuration together with above-mentioned functions cocoon fiber.
The infrared spectrogram that accompanying drawing 3 is above-mentioned unfinished cocoon fiber; The infrared spectrogram of the functional real silk fiber that accompanying drawing 4 is above-mentioned preparation; The functional real silk fiber that accompanying drawing 5 is above-mentioned preparation, the infrared spectrogram after 30 washings.
Contrast from accompanying drawing 3～accompanying drawing 5, function cocoon fiber prepared by the present invention, finishing agent has occurred to react with fiber, and after 30 washings, still have with arrangement and do not wash the diffuse reflectance infrared spectroscopy peak that fiber is identical, illustrate that function cocoon fiber of the present invention has good washing fastness.
Fiber soil removal efficiency is measured: select different oil, above-mentioned arrangement and finishing fiber are not immersed in oil bath to 2 minutes, again through centrifugal dehydration, adopt respectively commercially available neutral laundry liquid, in washing machine, wash, neutral laundry liquid concentration is 1.0g/L, and bath raio is 1: 20, wash time is 15 minutes, and wash temperature is room temperature.To not stain the Ultrascan-XE computer colour matching instrument test in U.S. Hunter company of fiber, oil contamination fiber and washing fiber respectively, test condition is: light source is D
65light source, 10
ovisual angle, folding 4 layers of sample, test L*(brightness value), get the mean value of 4 times.By following formula, calculate soil removal efficiency.
Soil removal efficiency (%)=
In formula: L
* nl* value for n rear fiber of sample washing; L
* 0l* value while not washing for contamination sample; L
* mfor not staiing the L* value of sample.
The soil removal efficiency that different oil stains cocoon fiber is in Table 1, and as shown in Table 1, functional real silk fiber prepared by the present invention not only has very high greasy dirt clearance, and has good washing fastness.
The comparison of table 1 fiber soil removal efficiency
Embodiment 8
In batch dying machine, add respectively 15 Kg acrylic acid/NVP/acrylamide preshrunk body aqueous solution, 1Kg acrylic acid, 3KgN-vinyl-2-pyrrolidone, 2Kg acrylamide, 0.4Kg potassium peroxydisulfate and 78.6Kg water, at room temperature stir, then add 10～20Kg wool fibre to soak 8 minutes, take out wool fibre, through centrifugal dehydration and oven dry, in the microwave equipment that to be placed on frequency again and to be 2450MHz, microwave output power be 1000W, process 5 minutes, make functional wool fibre.
Embodiment 9
In batch dying machine, add respectively 5 Kg acrylic acid/NVP/acrylamide preshrunk body aqueous solution, 3Kg acrylic acid, 12KgN-vinyl-2-pyrrolidone, 2Kg acrylamide, 1Kg potassium peroxydisulfate and 77Kg water, at room temperature stir, then add 10～20Kg rabbit fur fibre to soak 8 minutes, take out rabbit fur fibre, through centrifugal dehydration and oven dry, in the microwave equipment that to be placed on frequency again and to be 2450MHz, microwave output power be 1000W, process 5 minutes, make functional rabbit fur fibre.
Claims (6)
1. a preparation method for functional protein fiber, is characterized in that, comprises the following steps: first by azelon dip finishing solution; Then the azelon after dipping is dewatered, dried; Finally by the azelon after drying through baking or microwave treatment obtains described functional protein fiber; Wherein, described finisher solution consists of by mass percentage following four kinds of components:
The preshrunk body aqueous solution 5～15%
Vinyl monomer 5～20%
Initator 0.15～1.6%
Water surplus
Described vinyl monomer is selected from any two or more mixture in acrylic acid derivative, NVP, acrylamide derivative;
Described initator is selected from any one or more than one mixture in ammonium persulfate, sodium peroxydisulfate, potassium peroxydisulfate;
In the described preshrunk body aqueous solution, the mass concentration of preshrunk body is 25～55%;
In the described preshrunk body aqueous solution, preshrunk body is acrylic acid derivative/NVP preshrunk body, acrylic acid derivative/acrylamide derivative preshrunk body or acrylic acid derivative/NVP/acrylamide derivative preshrunk body.
2. preparation method according to claim 1, is characterized in that: acrylic acid derivative and NVP copolymerization that described acrylic acid derivative/NVP preshrunk body is 1: 0.7～1.3 by mass ratio obtain; Acrylic acid derivative and acrylamide derivative copolymerization that described acrylic acid derivative/acrylamide derivative preshrunk body is 1: 0.7～1.3 by mass ratio obtain; Acrylic acid derivative, NVP, acrylamide derivative copolymerization that described acrylic acid derivative/NVP/acrylamide derivative preshrunk body is 1: 1: 0.3～0.5 by mass ratio obtain.
3. preparation method according to claim 1, is characterized in that: described acrylic acid derivative is acrylic acid or methacrylic acid; Described acrylamide derivative is acrylamide, Methacrylamide or N hydroxymethyl acrylamide.
4. preparation method according to claim 1, is characterized in that: described dipping temperature is 20～50 ℃, and dip time is 5～10 minutes.
5. preparation method according to claim 1, is characterized in that: described baking temperature is 120～150 ℃, and the time of baking is 2～5 minutes; The frequency of described microwave treatment is that 2450MHz, microwave output power are 500～1500W, and the processing time is 4～8 minutes.
6. according to any one preparation method described in claim 1～5, it is characterized in that: described azelon is cocoon fiber, wool fibre or rabbit fur fibre.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088769A (en) * | 2015-08-31 | 2015-11-25 | 安徽天威羊绒制品有限公司 | Ultra-fine denier nylon 6 short fiber blended self-cleaning cashmere fiber and manufacture method of self-cleaning cashmere fiber |
| CN108411535A (en) * | 2018-03-29 | 2018-08-17 | 杭州钱皇丝绸家纺有限公司 | A kind of processing method of silk floss |
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| JPH04308274A (en) * | 1991-03-30 | 1992-10-30 | Kuraray Co Ltd | Sizing agent for fiber |
| CN101255657A (en) * | 2008-03-25 | 2008-09-03 | 浙江大学 | Fibre deep-dyeing agent emulsions and manufacture method thereof |
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| CN105088769A (en) * | 2015-08-31 | 2015-11-25 | 安徽天威羊绒制品有限公司 | Ultra-fine denier nylon 6 short fiber blended self-cleaning cashmere fiber and manufacture method of self-cleaning cashmere fiber |
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Effective date of registration: 20200628 Address after: No.71, Qingyang North Road, Tianning District, Changzhou City, Jiangsu Province Patentee after: Changzhou Xilewei Textile Technology Co.,Ltd. Address before: 215123 No. 199 benevolence Road, Suzhou Industrial Park, Jiangsu, Suzhou Patentee before: SOOCHOW University |