CN104389170A - Method for improving moisture penetrability and water repellency of coated fabric - Google Patents
Method for improving moisture penetrability and water repellency of coated fabric Download PDFInfo
- Publication number
- CN104389170A CN104389170A CN201410787680.6A CN201410787680A CN104389170A CN 104389170 A CN104389170 A CN 104389170A CN 201410787680 A CN201410787680 A CN 201410787680A CN 104389170 A CN104389170 A CN 104389170A
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- China
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- water
- silk fibroin
- coated fabric
- fibroin solution
- coating glue
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Abstract
The invention discloses a method for improving the moisture penetrability and the water repellency of a coated fabric. The method comprises the following steps: using silk fiber as a material, dissolving silk fibroin in a calcium chloride-ethanol-water ternary system according to the molar ratio of 1:2:8 to prepare a silk fibroin solution of which the solid content is 36.2 g.L<-1>; using 10 g of a water-based coating adhesive, the silk fibroin solution which is 3 percent by mass of the water-based coating adhesive and a formaldehyde-free cross-linking agent which is 0-7 percent by mass of the water-based coating adhesive, mixing the silk fibroin solution and the formaldehyde-free cross-linking agent first, then adding the water-based coating adhesive, adding a polyurethane thickener, stirring and dispersing the mixture, coating a polyester fabric subjected to water repellent finish, and detecting the moisture penetrability, the water repellency and the physical and mechanical properties of the coated fabric. The method provided by the invention is simple and easy; the obtained modified coating adhesive greatly improves the moisture penetrability of the coated fabric while maintaining the water repellency of the coated fabric, and doesn't influence the physical and mechanical properties of the coated fabric.
Description
Technical field
The present invention relates to weaving chemical field, especially a kind of method improving coated fabric poisture-penetrability and water proofing property.
Background technology
Fabric coating, as the term suggests, be coated with the other class material of one deck at fabric face exactly.This also illustrates, fabric coating has two processing object-Ji Bu, coating materials, and technology-coating technology that both combines.The coating technology of broad sense, also comprises lamination, namely on base cloth, applies layer of adhesive, is covered with thin film or other materials, and heating pressurization, forms a composite fabric; Or namely film itself is jointing material, and Ji Bu and other materials are bonded together.It is process coating material painting being scraped fabric face from narrow sense.The coating method of fabric coating then will be selected according to the characteristic of product requirement, used coating agent.Generally be divided into direct rubbing method and indirect rubbing method two class.Direct rubbing method is that coating agent physical mechanical method Direct Uniform is applied to fabric face; Indirect rubbing method, also known as transfer coated, is first coating agent doctor blade method coated in special antiseized transfer paper (also known as release liners).Again with fabric pressing, make coating substance and adhering fabric, then transfer paper is separated with fabric.
Fabric coating can improve feel, the style of fabric, increase the function that fabric is new, but when coated fabric is worn, often poisture-penetrability is poor, causes human body to wear uncomfortable, greatly reduces the wearability of coated fabric.This just requires the character improving fabric coating, while its water proofing property of reservation, improves its poisture-penetrability.
Summary of the invention
Some problems that the present invention exists in actual production to solve existing fabric coating, provide a kind of method improving coated fabric poisture-penetrability and water proofing property.Technique is simple, while reservation coated fabric water proofing property, significantly improves coated fabric poisture-penetrability, and does not affect the physical and mechanical properties of coated fabric.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
Improve a method for coated fabric poisture-penetrability and water proofing property, operating procedure is as follows:
1. the preparation of silk fibroin solution:
Silk fiber is placed in the sodium carbonate liquor that mass concentration is 0.5%, adds the distilled water that volume is sodium carbonate liquor 100 times, boiling water bath 30min, after above operation cycle twice, clean silk fiber with distilled water, obtain pure silk element, shred after drying under 50 DEG C of conditions.Configuration mol ratio is the calcium chloride of 1:2:8: ethanol: water ternary system, 75 DEG C of heating water baths stir, then the pure silk element shredded is added wherein in batches, until dissolve completely, obtain the thick solution of fibroin of brown color, adopt deionized water dialysis, filtering and concentrating, obtained silk fibroin solution, puts into refrigerator stand-by.
2. the preparation of silk fibroin solution modified coating glue:
The silk fibroin solution consumption getting step 1 obtained is 3% of aqueous coating glue quality, mixed solution is configured with formaldehyde-less crosslinker, formaldehyde-less crosslinker consumption is 0 ~ 7% of aqueous coating glue quality, aqueous coating glue is added in the silk fibroin solution prepared and formaldehyde-less crosslinker mixed liquor, the amount of aqueous coating glue is 10g, then polyurethane thickener is added, dispersed with stirring, obtained silk fibroin solution modified coating glue.
3. the water repellent finish of dacron is by interpolation 10g.L
-1complete without fluoro water proofing agent, get step 2 silk fibroin solution modified coating glue coating on the dacron after water repellent finish, control coating amount is 9.6g.cm
-2, bake 2min at 150 DEG C, detect coated fabric water proofing property, poisture-penetrability and physical and mechanical properties, testing result: modified coating fabric hydrostatic pressing 336 ~ 392mm, vapor transfer rate 4210 ~ 5329g. (m
2.d)
-1, ISO whiteness 71.7 ~ 72.0%, ABRASION RESISTANCE 105 ~ 130R, fracture strength 332 ~ 342N, extension at break 34.2 ~ 35.5mm.
In above-mentioned steps 2, formaldehyde-less crosslinker consumption is 3% of aqueous coating glue quality, modified coating fabric hydrostatic pressing 388mm, vapor transfer rate 4898g. (m
2.d)
-1, ISO whiteness 71.7%, ABRASION RESISTANCE 123R, fracture strength 339N, extension at break 35.3mm.
Compared with prior art beneficial effect of the present invention:
The present invention uses formaldehyde crosslinking agent and silk fibroin solution modified coating glue while reservation coated fabric water proofing property, significantly improves coated fabric poisture-penetrability, and does not affect the physical and mechanical properties of coated fabric.
Detailed description of the invention
Below in conjunction with embodiment, the inventive method is described in further detail.
Embodiment 1
A kind of method improving coated fabric poisture-penetrability and water proofing property:
1. the preparation of silk fibroin solution:
Silk fiber is placed in the sodium carbonate liquor that mass concentration is 0.5%, adds the distilled water that volume is sodium carbonate liquor 100 times, boiling water bath 30min, after above operation cycle twice, clean silk fiber with distilled water, obtain pure silk element, shred after drying under 50 DEG C of conditions.Configuration mol ratio is the calcium chloride of 1:2:8: ethanol: water ternary system, 75 DEG C of heating water baths stir, then the pure silk element shredded is added wherein in batches, until dissolve completely, obtain the thick solution of fibroin of brown color, adopt deionized water dialysis, filtering and concentrating, obtained silk fibroin solution, puts into refrigerator stand-by.
2. the preparation of silk fibroin solution modified coating glue:
The silk fibroin solution consumption getting step 1 obtained is 3% of aqueous coating glue quality, mixed solution is configured with formaldehyde-less crosslinker, formaldehyde-less crosslinker consumption is 0% of aqueous coating glue quality, aqueous coating glue is added in the silk fibroin solution prepared and formaldehyde-less crosslinker mixed liquor, the amount of aqueous coating glue is 10g, then polyurethane thickener is added, dispersed with stirring, obtained silk fibroin solution modified coating glue.
3. the water repellent finish of dacron is by interpolation 10g.L
-1complete without fluoro water proofing agent, get step 2 silk fibroin solution modified coating glue coating on the dacron after water repellent finish, control coating amount is 9.6g.cm
-2, bake 2min at 150 DEG C, detect coated fabric water proofing property, poisture-penetrability and physical and mechanical properties.
Testing result: modified coating fabric hydrostatic pressing 336mm, vapor transfer rate 5329g. (m
2.d)
-1, ISO whiteness 71.8%, ABRASION RESISTANCE 105R, fracture strength 332N, extension at break 34.2mm.
Embodiment 2
A kind of method improving coated fabric poisture-penetrability and water proofing property:
1. identical with example 1 step 1.
2. the silk fibroin solution consumption getting step 1 obtained is 3% of aqueous coating glue quality, mixed solution is configured with formaldehyde-less crosslinker, formaldehyde-less crosslinker consumption is 3% of aqueous coating glue quality, aqueous coating glue is added in the silk fibroin solution prepared and formaldehyde-less crosslinker mixed liquor, the amount of aqueous coating glue is 10g, then polyurethane thickener is added, dispersed with stirring, obtained silk fibroin solution modified coating glue.
3. identical with example 1 step 3.
Testing result: modified coating fabric hydrostatic pressing 388mm, vapor transfer rate 4898g. (m
2.d)
-1, ISO whiteness 71.7%, ABRASION RESISTANCE 123R, fracture strength 339N, extension at break 35.3mm.Found that, use formaldehyde crosslinking agent and silk fibroin solution modified coating glue while reservation coated fabric water proofing property, significantly improve coated fabric poisture-penetrability, and do not affect the physical and mechanical properties of coated fabric.
Embodiment 3
A kind of method improving coated fabric poisture-penetrability and water proofing property:
1. identical with example 1 step 1.
2. the silk fibroin solution consumption getting step 1 obtained is 3% of aqueous coating glue quality, mixed solution is configured with formaldehyde-less crosslinker, formaldehyde-less crosslinker consumption is 7% of aqueous coating glue quality, aqueous coating glue is added in the silk fibroin solution prepared and formaldehyde-less crosslinker mixed liquor, the amount of aqueous coating glue is 10g, then polyurethane thickener is added, dispersed with stirring, obtained silk fibroin solution modified coating glue.
3. identical with example 2 step 3.
Testing result: modified coating fabric hydrostatic pressing 392mm, vapor transfer rate 4210g. (m
2.d)
-1, ISO whiteness 72.0%, ABRASION RESISTANCE 130R, fracture strength 342N, extension at break 35.5mm.Found that, use formaldehyde crosslinking agent and silk fibroin solution modified coating glue while reservation coated fabric water proofing property, significantly improve coated fabric poisture-penetrability, and do not affect the physical and mechanical properties of coated fabric.
It should be noted that, what more than enumerate is only several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should think protection scope of the present invention.
Claims (2)
1. improve a method for coated fabric poisture-penetrability and water proofing property, it is characterized in that, operating procedure is as follows:
(1) preparation of silk fibroin solution:
Silk fiber is placed in the sodium carbonate liquor that mass concentration is 0.5%, add the distilled water that volume is sodium carbonate liquor 100 times, boiling water bath 30min, after above operation cycle twice, silk fiber is cleaned with distilled water, obtain pure silk element, shred after drying under 50 DEG C of conditions, configuration mol ratio is the calcium chloride of 1:2:8: ethanol: water ternary system, 75 DEG C of heating water baths stir, then the pure silk element shredded is added wherein in batches, until dissolve completely, obtain the thick solution of fibroin of brown color, employing deionized water is dialysed, filtering and concentrating, obtained silk fibroin solution, put into refrigerator stand-by,
(2) preparation of silk fibroin solution modified coating glue:
The silk fibroin solution consumption getting step (1) obtained is 3% of aqueous coating glue quality, mixed solution is configured with formaldehyde-less crosslinker, formaldehyde-less crosslinker consumption is 0 ~ 7% of aqueous coating glue quality, aqueous coating glue is added in the silk fibroin solution prepared and formaldehyde-less crosslinker mixed liquor, the amount of aqueous coating glue is 10g, then polyurethane thickener is added, dispersed with stirring, obtained silk fibroin solution modified coating glue;
(3) water repellent finish of dacron is by interpolation 10g.L
-1complete without fluoro water proofing agent, get step (2) silk fibroin solution modified coating glue coating on the dacron after water repellent finish, control coating amount is 9.6g.cm
-2, bake 2min at 150 DEG C, detect coated fabric water proofing property, poisture-penetrability and physical and mechanical properties, testing result: modified coating fabric hydrostatic pressing 336 ~ 392mm, vapor transfer rate 4210 ~ 5329g. (m
2.d)
-1, ISO whiteness 71.7 ~ 72.0%, ABRASION RESISTANCE 105 ~ 130R, fracture strength 332 ~ 342N, extension at break 34.2 ~ 35.5mm.
2. a kind of method improving coated fabric poisture-penetrability and water proofing property according to claim 1, it is characterized in that, in described step (2), formaldehyde-less crosslinker consumption is 3% of aqueous coating glue quality, modified coating fabric hydrostatic pressing 388mm, vapor transfer rate 4898g. (m
2.d)
-1, ISO whiteness 71.7%, ABRASION RESISTANCE 123R, fracture strength 339N, extension at break 35.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787680.6A CN104389170A (en) | 2014-12-17 | 2014-12-17 | Method for improving moisture penetrability and water repellency of coated fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787680.6A CN104389170A (en) | 2014-12-17 | 2014-12-17 | Method for improving moisture penetrability and water repellency of coated fabric |
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| CN104389170A true CN104389170A (en) | 2015-03-04 |
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| CN201410787680.6A Pending CN104389170A (en) | 2014-12-17 | 2014-12-17 | Method for improving moisture penetrability and water repellency of coated fabric |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555341A (en) * | 2016-11-24 | 2017-04-05 | 平湖市中瑞箱包皮件有限公司 | A kind of preparation method of three prevention fabrics |
| CN108166156A (en) * | 2017-12-23 | 2018-06-15 | 珠海美茵护理用品有限公司 | One kind is degradable, easily breaks up vegetable fiber environmental protection material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061139A (en) * | 2012-12-28 | 2013-04-24 | 浙江理工大学 | Ternary complex waterproof moisture-permeable coating agent and use thereof |
-
2014
- 2014-12-17 CN CN201410787680.6A patent/CN104389170A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061139A (en) * | 2012-12-28 | 2013-04-24 | 浙江理工大学 | Ternary complex waterproof moisture-permeable coating agent and use thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吕红等: "基于三元溶液为溶剂的再生丝素纤维的制备及结构性能的研究", 《现代丝绸科学与技术》 * |
| 周金丽等: "丝素/聚氨酯防水透湿涂层剂的制备及其应用", 《丝绸》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555341A (en) * | 2016-11-24 | 2017-04-05 | 平湖市中瑞箱包皮件有限公司 | A kind of preparation method of three prevention fabrics |
| CN108166156A (en) * | 2017-12-23 | 2018-06-15 | 珠海美茵护理用品有限公司 | One kind is degradable, easily breaks up vegetable fiber environmental protection material |
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