CN104389171A - Coating method of modified coating for improving water repellency - Google Patents
Coating method of modified coating for improving water repellency Download PDFInfo
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- CN104389171A CN104389171A CN201410787712.2A CN201410787712A CN104389171A CN 104389171 A CN104389171 A CN 104389171A CN 201410787712 A CN201410787712 A CN 201410787712A CN 104389171 A CN104389171 A CN 104389171A
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- coating
- water
- modified
- fabric
- silk fibroin
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Abstract
The invention discloses a coating method of a modified coating for improving water repellency. The coating method comprises the following steps: using silk fiber as a material, dissolving silk fibroin in a calcium chloride-ethanol-water ternary system 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 3 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 added with 10-20 g.L<-1> of a fluoride-free waterproof agent, baking the polyester fabric for 2 min at 140 DEG C, wherein the coating quantity is 9.6 g.cm<-2>; detecting the moisture penetrability and the water repellency of the modified coated fabric and the original fabric. Compared with the prior art, the moisture penetrability of the coated fabric is maintained, and meanwhile the water repellency of the coated fabric is greatly improved.
Description
Technical field
The present invention relates to weaving chemical field, the coating process of the modified coating of water conservancy project skill is refused in especially a kind of improvement.
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, increases the function that fabric is new, but existing modified coating fabric but also exists the shortcoming that poisture-penetrability is very strong and water-retaining property is very weak.
Summary of the invention
Some problems that the present invention exists in actual production to solve existing fabric coating, provide a kind of improvement to refuse the coating process of the modified coating of water conservancy project skill.This coating process, technique is simple, and while the poisture-penetrability maintaining coated fabric, the water proofing property of coated fabric improves in a large number.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A coating process for the modified coating of water conservancy project skill is refused in improvement, and 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, stir 75 DEG C of Water Under bath heating, then pure silk element is joined in ternary system 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 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 3% of aqueous coating glue quality, aqueous coating glue is added in the silk fibroin solution prepared and formaldehyde-less crosslinker mixed liquor, aqueous coating glue amount is 10g, then add polyurethane thickener and (add how many?), dispersed with stirring, obtained modified coating glue;
3. dacron is through interpolation 10 ~ 20g.L
-1refuse water treatment without fluoro water proofing agent, pick-up rate 25%, get step 2 modified coating glue coating on the dacron after refusing water treatment, coating amount is 9.6g.cm
-2, bake 2min at 140 DEG C, detect the water proofing property of modified coated fabric and former cloth, poisture-penetrability, testing result: modified coating fabric hydrostatic pressing 312 ~ 388mm, vapor transfer rate 4726 ~ 5521g. (m
2.d)
-1, former cloth hydrostatic pressing 116mm, vapor transfer rate 8044g. (m
2.d)
-1.
Be 15g.L without fluoro water proofing agent consumption in above-mentioned steps 3
-1, modified coating fabric hydrostatic pressing 375mm, vapor transfer rate 5020g. (m
2.d)
-1; Former cloth hydrostatic pressing 116mm, vapor transfer rate 8044g. (m
2.d)
-1compared with prior art beneficial effect of the present invention:
The present invention controls to bake condition, and while the poisture-penetrability maintaining coated fabric, the water proofing property of coated fabric improves in a large number.
Detailed description of the invention
Below in conjunction with embodiment, the inventive method is described in further detail.
Embodiment 1
The coating process of the modified coating of water conservancy project skill is refused in a kind of improvement:
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, stir 75 DEG C of Water Under bath heating, then pure silk element is joined in ternary system 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 modified coating glue:
The silk fibroin solution consumption getting step 1 obtained is 3% of aqueous coating glue mass fraction, mixed solution is configured with formaldehyde-less crosslinker, formaldehyde-less crosslinker consumption is 3% of aqueous coating glue mass fraction, aqueous coating glue 10g, aqueous coating glue is added in the silk fibroin solution prepared and formaldehyde-less crosslinker mixed liquor, then polyurethane thickener is added, dispersed with stirring, obtained modified coating glue.
3. dacron is through adding 10g.L
-1refuse water treatment without fluoro water proofing agent, pick-up rate 25%, get step 2 modified coating glue coating on the dacron after refusing water treatment, coating amount is 9.6g.cm
-2, bake 2min at 140 DEG C, detect the water proofing property of modified coated fabric and former cloth, poisture-penetrability.
Testing result: modified coating fabric hydrostatic pressing 312mm, vapor transfer rate 5521g. (m
2.d)
-1, former cloth hydrostatic pressing 116mm, vapor transfer rate 8044g. (m
2.d)
-1.Compared with former cloth, modified coating fabric is while maintenance poisture-penetrability, and water proofing property improves in a large number.
Embodiment 2
The coating process of the modified coating of water conservancy project skill is refused in a kind of improvement:
1. identical with example 1 step 1.
2. identical with example 1 step 2.
3. dacron is through adding 15g.L
-1refuse water treatment without fluoro water proofing agent, pick-up rate 25%, get step 2 modified coating glue coating on the dacron after refusing water treatment, coating amount is 9.6g.cm
-2, bake 2min at 140 DEG C, detect the water proofing property of modified coated fabric and former cloth, poisture-penetrability.
Testing result: modified coating fabric hydrostatic pressing 375mm, vapor transfer rate 5020g. (m
2.d)
-1, former cloth hydrostatic pressing 116mm, vapor transfer rate 8044g. (m
2.d)
-1.Compared with former cloth, modified coating fabric is while maintenance poisture-penetrability, and water proofing property improves in a large number.
Embodiment 3
The coating process of the modified coating of water conservancy project skill is refused in a kind of improvement:
1. identical with example 1 step 1.
2. identical with example 1 step 2.
3. dacron is through adding 20g.L
-1refuse water treatment without fluoro water proofing agent, pick-up rate 25%, get step 2 modified coating glue coating on the dacron after refusing water treatment, coating amount is 9.6g.cm
-2, bake 2min at 140 DEG C, detect the water proofing property of modified coated fabric and former cloth, poisture-penetrability.
Testing result: modified coating fabric hydrostatic pressing 388mm, vapor transfer rate 4726g. (m
2.d)
-1, former cloth hydrostatic pressing 116mm, vapor transfer rate 8044g. (m
2.d)
-1.Compared with former cloth, modified coating fabric is while maintenance poisture-penetrability, and water proofing property improves in a large number.
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. a coating process for the modified coating of water conservancy project skill is refused in improvement, and 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%, 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, stir 75 DEG C of Water Under bath heating, then pure silk element is joined in ternary system 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) preparation of 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 3% of aqueous coating glue quality, aqueous coating glue is added in the silk fibroin solution prepared and formaldehyde-less crosslinker mixed liquor, aqueous coating glue amount is 10g, then add polyurethane thickener and (add how many?), dispersed with stirring, obtained modified coating glue;
(3) dacron is through interpolation 10 ~ 20g.L
-1refuse water treatment without fluoro water proofing agent, pick-up rate 25%, get step (2) modified coating glue coating on the dacron after refusing water treatment, coating amount is 9.6g.cm
-2, bake 2min at 140 DEG C, detect the water proofing property of modified coated fabric and former cloth, poisture-penetrability, testing result: modified coating fabric hydrostatic pressing 312 ~ 388mm, vapor transfer rate 4726 ~ 5521g. (m
2.d)
-1, former cloth hydrostatic pressing 116mm, vapor transfer rate 8044g. (m
2.d)
-1.
2. the coating process of the modified coating of water conservancy project skill is refused in a kind of improvement according to claim 1, it is characterized in that, described step (3) is middle is 15g.L without fluoro water proofing agent consumption
-1, modified coating fabric hydrostatic pressing 375mm, vapor transfer rate 5020g. (m
2.d)
-1; Former cloth hydrostatic pressing 116mm, vapor transfer rate 8044g. (m
2.d)
-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787712.2A CN104389171A (en) | 2014-12-17 | 2014-12-17 | Coating method of modified coating for improving water repellency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787712.2A CN104389171A (en) | 2014-12-17 | 2014-12-17 | Coating method of modified coating for improving water repellency |
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| CN104389171A true CN104389171A (en) | 2015-03-04 |
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| CN201410787712.2A Pending CN104389171A (en) | 2014-12-17 | 2014-12-17 | Coating method of modified coating for improving water repellency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111593581A (en) * | 2020-05-29 | 2020-08-28 | 江苏万邦特种纺织发展有限公司 | Novel high-strength waterproof cloth |
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 CN201410787712.2A patent/CN104389171A/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》, vol. 27, no. 2, 28 April 2012 (2012-04-28), pages 52 - 55 * |
| 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》, vol. 50, no. 4, 20 April 2013 (2013-04-20), pages 10 - 15 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111593581A (en) * | 2020-05-29 | 2020-08-28 | 江苏万邦特种纺织发展有限公司 | Novel high-strength waterproof cloth |
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