CN103614921A - Finishing method for improving hydrophobic performances of song brocade fabric - Google Patents
Finishing method for improving hydrophobic performances of song brocade fabric Download PDFInfo
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- CN103614921A CN103614921A CN201310548255.7A CN201310548255A CN103614921A CN 103614921 A CN103614921 A CN 103614921A CN 201310548255 A CN201310548255 A CN 201310548255A CN 103614921 A CN103614921 A CN 103614921A
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Abstract
The invention relates to a finishing method for improving hydrophobic performances of song brocade fabric. The finishing method is characterized by comprising specific steps: soaking the song brocade fabric into a cationic type water-borne aliphatic polyurethane reagent liquor, dipping twice and rolling twice; and then, drying to obtain the song brocade fabric with the good hydrophobic performances. The finishing method disclosed by the invention adopts chemical reagent treatment to improve the hydrophobic performances of the finished product song brocade fabric; meanwhile, the performances such as fabric strength and creasing elasticity required by luggage fabric are also maintained or improved, and style changes are small; moreover, the chemical reagent is excellent in environment-friendly index, a fabric finishing process is simple and satisfies the production principle of low cost and high efficiency, and the market prospect is wide.
Description
Technical field
The invention belongs to fabric finishing method field, particularly a kind of method for sorting that improves Song Dynasty brocade fabric hydrophobic performance.
Background technology
Song Dynasty brocade is one of traditional silk handicraft of China, and Yin Seze is magnificent, and pattern is exquisite, is endowed China's " beautiful hat ".Song Dynasty brocade product is applied to bag fabric series, when making full use of Song Dynasty brocade characteristic, improving case and bag class, embodies again traditional Chinese culture characteristic, there is theory and realistic meaning.
Bag fabric has requirement to hydrophobicity.And the main raw material of Song Dynasty brocade---mulberry silk is comprised of fibroin and two kinds of protein of silk gum, a large amount of hydrophilic radicals---amino impels mulberry silk to have good hygroscopicity, in temperature, be that under 20 ℃, the relative humidity standard conditions that are 65%, the regain of mulberry silk reaches 11% left and right.At present, improve the hydrophobic method of fabric and comprise coating, supercritical CO 2 medium method, Fluorine containing olefine polymerization, nanofiber embrane method, graft reaction etc., and what be applied to Song Dynasty brocade is mainly to change textile, increase weft density, use the institutional framework methods such as multiple latitude.The former advanced technology, waterproof effect is good, but Fabric Style changes greatly, especially coating, can make that Song Dynasty brocade precision is originally careful, hard soft, the smooth well-pressed style of quality is shielded or destroys, and the methods such as supercritical CO 2 medium are to the having relatively high expectations of equipment, technique, cost is huge; Latter process is simple, as adopt waterproof fibre raw material to replace mulberry silk can significantly improve the hydrophobic performance of Song Dynasty brocade, shortcoming is that class reduces, be not inconsistent plying characteristic processed, increase weft density and use multiple latitude tissue limited to the room for promotion of fabric hydrophobic performance, and give to weave and bring very large challenge, increasing fabric thickness, cost rises.Therefore above method all has certain limitation in actual applications.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method for sorting that improves Song Dynasty brocade fabric hydrophobic performance, the method can change the original good hygroscopicity of fabric, improve fabric hydrophobic performance, the performance such as the required fabric strength of bag fabric, pincher elasticity has also obtained keeping or improving simultaneously.
In order to solve the problems of the technologies described above, the invention provides a kind of method for sorting that improves Song Dynasty brocade fabric hydrophobic performance, it is characterized in that, concrete steps are: by Song Dynasty brocade textile impregnation in cation-type water-thinned aliphatic polyurethane reagent solution, two soak two rolls, then drying, obtains the Song Dynasty brocade fabric after arrangement.
Preferably, described Song Dynasty brocade fabric is the Song Dynasty brocade fabric that the Song Dynasty brocade fabric that interweaves of pure mulberry silk Song Dynasty brocade fabric, mulberry silk and chemical fibre or mulberry silk and artificial silk interweave.
Preferably, the solid content of described cation-type water-thinned aliphatic polyurethane reagent is 30%, pH=3.5-5.5, viscosity≤50mPa.s, emulsion particle diameter≤100nm.
Preferably, in described cation-type water-thinned aliphatic polyurethane reagent solution, the concentration of cation-type water-thinned aliphatic polyurethane reagent is 120-160g/L, two to soak two temperature that adopt while rolling be 30-40 ℃, and each infiltrating time is 20-30s, and nip pressure is 0.1-0.2MPa.
Preferably, described drying temperature is 60-70 ℃, and criteria thus the drying time is 60min.
The cation-type water-thinned aliphatic polyurethane of the creationary employing of patent of the present invention is processed Song Dynasty brocade fabric, when improving fabric hydrophobic performance, as performances such as the required fabric strength of bag fabric, pincher elasticities, has also obtained keeping or improving.In addition, this chemical reagent has good resistance to alcohol, chemical resistance, and not containing organic solvent,, containing organo-tin compound, heavy metal, formaldehyde etc., environmental protection index is ungood.
Wetting property of the fabric is evaluated by T.Young equation.
cosθ=(γ
SV-γ
SL)／γ
LV
In formula, γ is surface tension, is the active force in unit length; Subscript S, L, V represents respectively solid, liquid, gas state; θ is contact angle, and generally conventional contact angle cos θ represents the wettability of material.
In the present invention, contact angle test is carried out at laboratory with constant temperature and constant humidity, adopts OCA15EC optics contact angle measurement, and every sample is selected 3 points at different parts, average, according to the size of contact angle θ, can wetting be divided into several situations:, when θ=0 °, be 1. complete wetting; 2. during 90 ° of 0 ° of < θ <, for infiltrating; 8. during θ=90 °, be zero to infiltrate; 4. during 180 ° of 90 ° of < θ <, for non-wettable, hydrophobic; 5. during θ=180 °, for completely non-wettable.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the Song Dynasty brocade fabric after gained processing of the present invention and the Song Dynasty brocade of non-processor are compared, and wettability changes completely, from original hygroscopicity, well becomes hydrophobicity excellence, and Fabric Style variation is little, reaches good effect;
(2) in the present invention, as performances such as the required fabric strength of bag fabric, pincher elasticities, also obtained keeping or improving, this chain segment length, percentage elongation that comes from polyurethane molecular itself is high, and fabric toughness after arranging improves;
(3) the chemical reagent environmental protection index that the present invention uses is good, and fabric finishing process is simple, meets low cost, high efficiency production principle, and market prospects are wide.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.Cation-type water-thinned aliphatic polyurethane reagent used in following examples is purchased from ShangHai SiSheng polymer Materials Co., Ltd, and its solid content is 30%, pH=3.5-5.5, viscosity≤50mPa.s, emulsion particle diameter≤100nm.
Embodiment 1
Fabric specification: first warp: the ripe look silk of (1/20/22D8T/Z * 2) 6T/S, second warp: 1/20/22 raw silk, tram: the ripe look silk of 4/27/29D filature silk 1.5T/S (3 look).Through close: 120 pieces/centimetre, filling density: 90 pieces/centimetre.
Finishing technique: in the cation-type water-thinned aliphatic polyurethane reagent solution that is 120g/L in concentration by above-mentioned Song Dynasty brocade textile impregnation, two soak two rolls, temperature remains on 30-40 ℃, each sample infiltrating time approximately 20 seconds, nip pressure 0.2MPa, drying then, 70 ℃ of drying temperatures, criteria thus the drying time 60min, obtains the Song Dynasty brocade fabric after arrangement.
After tested: 130 °, the Song Dynasty brocade clothing in contact angle after arrangement, fabric strength: warp-wise 605N, broadwise 1520N, pincher elasticity: 78 ℃ of anxious elastic recovery angles, 102 ℃ of slow elastic recovery angles.
Untrimmed pure mulberry silk Song Dynasty brocade fabric test result: fabric moisture is rapid, 0 ° of contact angle, fabric strength: warp-wise 620N, broadwise 1600N, pincher elasticity: 70 ℃ of anxious elastic recovery angles, 82 ℃ of slow elastic recovery angles.
Contact angle test is carried out at laboratory with constant temperature and constant humidity, adopts OCA15EC optics contact angle measurement, and every sample is selected 3 points at different parts, averages.
Embodiment 2
Fabric specification: first warp: the ripe look silk of (1/20/22D8T/Z * 2) 6T/S, second warp: 1/20/22 raw silk, tram: 1/120D artificial silk (3 look).Through close: 120 pieces/centimetre, filling density: 90 pieces/centimetre.
Finishing technique: in the cation-type water-thinned aliphatic polyurethane reagent solution that is 140g/L in concentration by above-mentioned Song Dynasty brocade textile impregnation, two soak two rolls, temperature remains on 30-40 ℃, each sample infiltrating time approximately 20 seconds, nip pressure 0.1MPa, drying then, 60 ℃ of drying temperatures, criteria thus the drying time 60min, obtains the Song Dynasty brocade fabric after arrangement.
After tested: 125 °, the Song Dynasty brocade clothing in contact angle after arrangement, fabric strength: warp-wise 575N, broadwise 1002N, pincher elasticity: 66 ℃ of anxious elastic recovery angles, 95 ℃ of slow elastic recovery angles.
Untrimmed mulberry silk and the artificial silk Song Dynasty brocade fabric test result that interweaves: fabric moisture is rapid, 0 ° of contact angle, fabric strength: warp-wise 600N, broadwise 1050N, pincher elasticity: 62 ℃ of anxious elastic recovery angles, 79 ℃ of slow elastic recovery angles.
Claims (5)
1. a method for sorting that improves Song Dynasty brocade fabric hydrophobic performance, is characterized in that, concrete steps are: by Song Dynasty brocade textile impregnation, in cation-type water-thinned aliphatic polyurethane reagent solution, two soak two rolls, and then drying, obtains the Song Dynasty brocade fabric after arrangement.
2. the method for sorting of raising Song Dynasty brocade fabric hydrophobic performance as claimed in claim 1, is characterized in that, described Song Dynasty brocade fabric is the Song Dynasty brocade fabric that the Song Dynasty brocade fabric that interweaves of pure mulberry silk Song Dynasty brocade fabric, mulberry silk and chemical fibre or mulberry silk and artificial silk interweave.
3. the method for sorting of raising Song Dynasty brocade fabric hydrophobic performance as claimed in claim 1, is characterized in that, the solid content of described cation-type water-thinned aliphatic polyurethane reagent is 30%, pH=3.5-5.5, viscosity≤50mPa.s, emulsion particle diameter≤100nm.
4. the method for sorting of raising Song Dynasty brocade fabric hydrophobic performance as claimed in claim 1, it is characterized in that, in described cation-type water-thinned aliphatic polyurethane reagent solution, the concentration of cation-type water-thinned aliphatic polyurethane reagent is 120-160g/L, two to soak two temperature that adopt while rolling be 30-40 ℃, each infiltrating time is 20-30s, and nip pressure is 0.1-0.2MPa.
5. the method for sorting of raising Song Dynasty brocade fabric hydrophobic performance as claimed in claim 1, is characterized in that, described drying temperature is 60-70 ℃, and criteria thus the drying time is 60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310548255.7A CN103614921A (en) | 2013-11-07 | 2013-11-07 | Finishing method for improving hydrophobic performances of song brocade fabric |
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| CN201310548255.7A CN103614921A (en) | 2013-11-07 | 2013-11-07 | Finishing method for improving hydrophobic performances of song brocade fabric |
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| CN103614921A true CN103614921A (en) | 2014-03-05 |
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| CN201310548255.7A Pending CN103614921A (en) | 2013-11-07 | 2013-11-07 | Finishing method for improving hydrophobic performances of song brocade fabric |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633977A (en) * | 2012-05-04 | 2012-08-15 | 苏州大学 | Waterproof moisture-permeable coating adhesive and preparation method and application thereof |
| CN102744940A (en) * | 2012-07-19 | 2012-10-24 | 龙之族（中国）有限公司 | Method for producing waterproof moisture permeability fabric based on water foaming system |
-
2013
- 2013-11-07 CN CN201310548255.7A patent/CN103614921A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633977A (en) * | 2012-05-04 | 2012-08-15 | 苏州大学 | Waterproof moisture-permeable coating adhesive and preparation method and application thereof |
| CN102744940A (en) * | 2012-07-19 | 2012-10-24 | 龙之族（中国）有限公司 | Method for producing waterproof moisture permeability fabric based on water foaming system |
Non-Patent Citations (2)
| Title |
|---|
| 杨蓓蓓等: "阳离子型水性聚氨酯的概述与研究进展", 《中国皮革》 * |
| 陈建平等: "反应性阳离子水性聚氨酯对羊绒针织物", 《毛纺科技》 * |
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Application publication date: 20140305 |