CN102975937B - Coating method for inside of woven bag - Google Patents
Coating method for inside of woven bag Download PDFInfo
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- CN102975937B CN102975937B CN201210477837.6A CN201210477837A CN102975937B CN 102975937 B CN102975937 B CN 102975937B CN 201210477837 A CN201210477837 A CN 201210477837A CN 102975937 B CN102975937 B CN 102975937B
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Abstract
The invention discloses a coating method of a woven bag. The coating method comprises the following steps of: firstly weaving warps and wefts made of fiber materials into a barrel-shaped fiber weaving layer on a circular weaving machine; then spraying paint prepared on site on the inner side of the weaving layer to form lining, wherein the paint comprises the following components in parts by weight: 16-20 parts of ethylene-vinyl acetate copolymer, 26-35 parts of polyving akohol, 30-45 parts of isocyanate, 20-35 parts of polyether glycol and 10-20 parts of diethyl methyl benzene diamine; and drying and obtaining a woven bag product with internal spraying.
Description
Technical field
The present invention relates to a kind of painting method, specifically, relate to a kind of painting method of woven bag.
Background technology
Woven bag is the packaging of the widely used conveying powdered product of industry such as industry, agricultural, building.Woven bag is normally woven by interlacing silk and forms, and has small gap in the crossover sites of braided wires.In order to make up this defect, poly-vinyl resin was once used for woven bag finish coat by people.This coating is easily aging to come off, and also not wear-resisting, service life is shorter.The manufacture method of this kind of finish coat woven bag is: first weaving fiber tubular article on circular weaving machine, then joins in extruder by coated with resins, through extruder extruding and hot melting film, be coated to the outside face of knitted cylindrical thing and become product.This production method needs more production facilities, and energy resource consumption is comparatively large, also has requirement to factory building; All adverse effect is brought to the health of environment and operating personal simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency overcoming existing woven bag surface coating process, provide a kind of wear-resisting, withstanding corrosion, intensity are high, long service life, production technology is simple simultaneously, efficiency is high, free of contamination woven bag painting method.
The woven bag of manufacture of the present invention is made up of fiber braiding layer and inside liner, and improvements are that described inside liner forms lining by spraying method in fiber braiding layer inside.
Described fiber braiding layer is with polypropylene (English name pp) for primary raw material, through extruding, stretching formation flat filament, then weaves through circular weaving machine, works out.The thickness of described inside liner is 0.1 ~ 0.6mm.
Woven bag method for making of the present invention is: first on circular weaving machine, the warp adopting lamination coating to make and parallel are woven into tubular fiber braiding layer, then spray painting is formed liner inside braid, described coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 16-20
Polyvinyl alcohol 26-35
Isocyanates 30-45
Polyether Glycols 20-35
Diethyl toluene diamine 10-20.
After above-mentioned coating component being prepared at the scene fully mixing, in temperature 45 C ~ 60 DEG C, under the condition of pressure 10 ~ 15MPa, utilize spray gun spraying in the inner side of fiber braiding layer, form lining coating, after drying, product.
Above-mentioned warp and parallel are adopt acrylic resin and the auxiliary antioxidant DLTP that is 0.6 part according to the acrylic resin that weight portion the is 100 parts ultraviolet absorbent UV-327 that to add weight portion be antioxidant 1010, the weight portion of 0.4 part is 0.5 part, weight portion; The compound obtained is stretched by extruder and draw bench; The polyacrylic fibres of rolling, it has high strength, high abrasion, good toughness, the premium properties such as lightweight.The coating of above-mentioned spraying is a kind of Novel environment-friendlymaterial material, be sprayed on inside woven bag tubular article, there is coating densification, continuous, jointless feature, withstanding corrosion, high temperature resistant, shock resistance, not easily agingly to come off, and can the infiltration of moisture in completely isolated air and oxygen, especially conveying chemical frbre industry raw material is applicable to, agrochemical, the pulverulent materials such as construction cement.Woven bag painting method provided by the invention improves prior art and uses extruder at woven bag outside face coated plastic film, the complicated technology of another surface then utilizing bag overturning machine to translate into woven bag coated plastic film again.Its objective is that to provide a kind of raw materials consumption few, cost is low, lightweight, woven bag manufacture method of long service life and products thereof.Not only technique is simple, equipment investment is few for the method, production efficiency is high, and is conducive to environmental protection.
Detailed description of the invention
The present invention is further illustrated below by embodiment.
Embodiment 1
The auxiliary antioxidant DLTP that the ultraviolet absorbent UV-327 that it be antioxidant 1010, the weight portion of 0.4 part is 0.5 part that the acrylic resin being 100 parts according to weight portion adds weight portion, weight portion are 0.6 part; The compound obtained is stretched by extruder and draw bench, rolling and make polyacrylic fibres.Circular weaving machine is woven into tubular fiber braiding layer with polyacrylic fibres as warp and parallel, then spray painting is formed liner inside braid, described coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 16
Polyvinyl alcohol 26
Isocyanates 30
Polyether Glycols 20
Diethyl toluene diamine 10.
By above-mentioned coating component after extemporaneous preparation fully mixes, at temperature 45 C, under the condition of pressure 10MPa, utilize spray gun spraying in the inner side of fiber braiding layer, form lining coating, coating thickness 0.1mm, namely obtains the woven bag of interior spraying after heated-air drying.
Embodiment 2
Repeat embodiment 1, the coating processes of woven bag is roughly the same with embodiment 1, and difference is that coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 20
Polyvinyl alcohol 35
Isocyanates 45
Polyether Glycols 35
Diethyl toluene diamine 20
Spraying temperature 60 DEG C, spray pressure 15MPa, coating thickness 0.6mm.
Embodiment 3
Repeat embodiment 1, the coating processes of woven bag is roughly the same with embodiment 1, and difference is that coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 18
Polyvinyl alcohol 30
Isocyanates 38
Polyether Glycols 28
Diethyl toluene diamine 15
Spraying temperature 53 DEG C, spray pressure 13MPa, coating thickness 0.3mm.
Claims (5)
1. the painting method of a woven bag, comprise the following steps: first on circular weaving machine, the warp adopting lamination coating to make and parallel are woven into tubular fiber braiding layer, then spray painting is formed liner inside braid, described coating is made up of the component of following weight portion:
Ethylene-vinyl acetate copolymer 16 ~ 20 parts
Polyvinyl alcohol 26 ~ 35 parts
Isocyanates 30 ~ 45 parts
Polyether Glycols 20 ~ 35 parts
Diethyl toluene diamine 10 ~ 20 parts
The woven bag product of interior spraying is obtained after drying.
2. method according to claim 1, is characterized in that, described coating is extemporaneous preparation.
3. method according to claim 1, is characterized in that, the temperature of described spray painting is 45 ~ 60 DEG C, and pressure is 10 ~ 15MPa.
4. method according to claim 1, is characterized in that, the thickness of described liner is 0.1 ~ 0.6mm.
5. method according to claim 1, it is characterized in that, described warp and parallel are adopt acrylic resin and the auxiliary antioxidant DLTP that is 0.6 part according to the acrylic resin that weight portion the is 100 parts ultraviolet absorbent UV-327 that to add weight portion be antioxidant 1010, the weight portion of 0.4 part is 0.5 part, weight portion; The compound obtained is stretched by extruder and draw bench, the polyacrylic fibres of rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210477837.6A CN102975937B (en) | 2012-11-22 | 2012-11-22 | Coating method for inside of woven bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210477837.6A CN102975937B (en) | 2012-11-22 | 2012-11-22 | Coating method for inside of woven bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102975937A CN102975937A (en) | 2013-03-20 |
| CN102975937B true CN102975937B (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210477837.6A Active CN102975937B (en) | 2012-11-22 | 2012-11-22 | Coating method for inside of woven bag |
Country Status (1)
| Country | Link |
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| CN (1) | CN102975937B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101347952B1 (en) * | 2013-06-17 | 2014-01-09 | 백건용 | Vynil replacing fortified fabric and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060061A (en) * | 1991-09-16 | 1992-04-08 | 齐鲁塑料制品有限公司 | A kind of coating processes of Polywoven Bag |
| CN102050981A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Polyethylene composition for woven bag coating material and preparation method thereof |
| CN102268207A (en) * | 2011-09-05 | 2011-12-07 | 南京金浦锦湖化工有限公司 | Polypropylene coating material and preparation method thereof |
-
2012
- 2012-11-22 CN CN201210477837.6A patent/CN102975937B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060061A (en) * | 1991-09-16 | 1992-04-08 | 齐鲁塑料制品有限公司 | A kind of coating processes of Polywoven Bag |
| CN102050981A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Polyethylene composition for woven bag coating material and preparation method thereof |
| CN102268207A (en) * | 2011-09-05 | 2011-12-07 | 南京金浦锦湖化工有限公司 | Polypropylene coating material and preparation method thereof |
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| Publication number | Publication date |
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| CN102975937A (en) | 2013-03-20 |
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Owner name: HUNAN ANFU PLASTIC PACKAGING CO., LTD. Free format text: FORMER OWNER: QINGDAO BAIZHONG CHEMICAL TECHNOLOGY CO., LTD. Effective date: 20150702 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Inventor after: Yu Qianxi Inventor before: Zhang Ming |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG MING TO: YU QIANXI |
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Effective date of registration: 20150702 Address after: An Industrial Park Economic Development Zone, Changde City, Hunan province Linli County 415200 Patentee after: Hunan Anfu plastic packaging Co., Ltd. Address before: Donghai West Road 266000 Shandong city of Qingdao province No. 37 Building 2 10 storey office building room 3 No. 02 Patentee before: Qingdao Bozhong Chemical Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: An Industrial Park Economic Development Zone, Changde City, Hunan province Linli County 415200 Patentee after: Hunan Anfu environmental Polytron Technologies Inc Address before: An Industrial Park Economic Development Zone, Changde City, Hunan province Linli County 415200 Patentee before: Hunan Anfu plastic packaging Co., Ltd. |