CN102975936A - Coating method of woven bag - Google Patents
Coating method of woven bag Download PDFInfo
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- CN102975936A CN102975936A CN2012104734984A CN201210473498A CN102975936A CN 102975936 A CN102975936 A CN 102975936A CN 2012104734984 A CN2012104734984 A CN 2012104734984A CN 201210473498 A CN201210473498 A CN 201210473498A CN 102975936 A CN102975936 A CN 102975936A
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- woven bag
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Abstract
The invention provides a coating method of a woven bag. The method comprises the following steps of: weaving warps and wefts made of fibrous material into a cylindrical fibrous braid on a circular weaving machine; then spraying coatings which are prepared on site on the inside of the braid to form a liner, wherein the coatings comprise the following components in parts by mass: 11-15 parts of ethylene-vinyl acetate copolymer, 36-45 parts of polyvinyl alcohol, 5-15 parts of isocyanate, 5-15 parts of polyether glycol, and 5-12 parts of diethyl methyl benzene diamine; and then drying to obtain an inner sprayed woven bag product.
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 packing of the widely used conveying powdered products of industry such as industry, agricultural, building.Woven bag is normally formed by interlacing silk braiding, has small slit in the crossover sites of braided wires.In order to remedy this defective, people once were used for the woven bag finish coat with poly-vinyl resin.This coating is aging coming off easily, and also not wear-resisting, service life is shorter.The manufacture method of this kind finish coat woven bag is: first weaving fiber tubular article on circular weaving machine, then coated with resins is joined in the extruder, and 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 larger, and factory building is also had requirement; Simultaneously the health of environment and operating personal is all brought adverse effect.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency that overcomes existing woven bag surface coating process, and a kind of wear-resisting, withstanding corrosion, high, the long service life of intensity are provided, and production technology is simple simultaneously, efficient is high, free of contamination woven bag painting method.
The woven bag of manufacturing of the present invention is made 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 take polypropylene (English name pp) as primary raw material, through extruding, stretch the formation flat filament, weaves, works out through circular weaving machine again.The thickness of described inside liner is 0.1~0.6mm.
Woven bag method for making of the present invention is: warp and the parallel that will adopt lamination coating to make on circular weaving machine first are woven into the tubular fiber braiding layer, then spray painting is formed liner in the braid inboard, described coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 11-15
Polyvinyl alcohol 36-45
Isocyanates 5-15
Polyether Glycols 5-15
Diethyl toluene diamine 5-12.
After the above-mentioned coating component prepared abundant mixing at the scene, in temperature 45 C~60 ℃, under the condition of pressure 10~15MPa, utilize spray gun spraying in the inboard of fiber braiding layer, form lining coating, after the drying, product.
Above-mentioned warp and parallel are to adopt acrylic resin and are that to add weight portion be 0.4 part antioxidant 1010, the ultraviolet absorbent UV-327 that weight portion is 0.5 part, the auxiliary antioxidant DLTP that weight portion is 0.6 part for 100 parts acrylic resin according to weight portion; The compound that obtains is stretched by extruder and draw bench; The polyacrylic fibres that rolling forms, 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 friendly material, it is inboard to be sprayed on the woven bag tubular article, have coating densification, continuous, jointless characteristics, withstanding corrosion, high temperature resistant, shock resistance, be difficult for aging coming off, and the fully moisture in the air-isolation and the infiltration of oxygen, especially be fit to carry chemical frbre industry raw material, agrochemical, the pulverulent materials such as construction cement.Woven bag painting method provided by the invention has improved prior art and has used extruder at woven bag outside face coated plastic film, then utilizes the again complicated technology of coated plastic film of another surface that bag overturning machine translates into woven bag.Its objective is that a kind of raw materials consumption is provided is few, cost is low, and is 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.
The specific embodiment
Further specify the present invention below by embodiment.
Embodiment 1
Be that to add weight portion be 0.4 part antioxidant 1010, the ultraviolet absorbent UV-327 that weight portion is 0.5 part, the auxiliary antioxidant DLTP that weight portion is 0.6 part for 100 parts acrylic resin according to weight portion; The compound that obtains is stretched rolling and make polyacrylic fibres by extruder and draw bench.Be woven into tubular fiber braiding layer with polyacrylic fibres as warp and parallel at circular weaving machine, then spray painting formed liner in the braid inboard, described coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 11
Polyvinyl alcohol 36
Isocyanates 5
Polyether Glycols 5
Diethyl toluene diamine 5.
After scene preparation fully mixes, at temperature 45 C, under the condition of pressure 10MPa, utilize spray gun spraying in the inboard of fiber braiding layer the above-mentioned coating component, form lining coating, coating thickness 0.1mm namely obtains the woven bag of interior spraying after the heated-air drying.
Embodiment 2
Repeat embodiment 1, the coating processes of woven bag and embodiment 1 are roughly the same, and difference is that coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 15
Polyvinyl alcohol 45
Isocyanates 15
Polyether Glycols 15
Diethyl toluene diamine 12
60 ℃ of spraying temperatures, spray pressure 15MPa, coating thickness 0.6mm.
Embodiment 3
Repeat embodiment 1, the coating processes of woven bag and embodiment 1 are roughly the same, and difference is that coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 13
Polyvinyl alcohol 40
Isocyanates 10
Polyether Glycols 10
Diethyl toluene diamine 8.5
53 ℃ of spraying temperatures, spray pressure 13MPa, coating thickness 0.3mm.
Claims (5)
1. the painting method of a woven bag, the method may further comprise the steps: warp and the parallel that will adopt lamination coating to make on circular weaving machine first are woven into the tubular fiber braiding layer, then spray painting is formed liner in the braid inboard, described coating comprises following component (mass parts) and content:
Ethylene-vinyl acetate copolymer 11-15
Polyvinyl alcohol 36-45
Isocyanates 5-15
Polyether Glycols 5-15
Diethyl toluene diamine 5-12
Obtain the woven bag product of interior spraying after the drying.
2. described method according to claim 1 is characterized in that, described coating is on-the-spot preparation.
3. described method according to claim 1 is characterized in that the temperature of described spray painting is 45 ℃~60 ℃, and pressure is 10~15MPa.
4. described method according to claim 1 is characterized in that the thickness of described liner is 0.1~0.6mm.
5. described method according to claim 1, it is characterized in that described warp and parallel are to adopt acrylic resin and are that to add weight portion be 0.4 part antioxidant 1010, the ultraviolet absorbent UV-327 that weight portion is 0.5 part, the auxiliary antioxidant DLTP that weight portion is 0.6 part for 100 parts acrylic resin according to weight portion; The compound that obtains is stretched the polyacrylic fibres that rolling forms by extruder and draw bench.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2012104734984A CN102975936A (en) | 2012-11-21 | 2012-11-21 | Coating method of woven bag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2012104734984A CN102975936A (en) | 2012-11-21 | 2012-11-21 | Coating method of woven bag |
Publications (1)
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CN102975936A true CN102975936A (en) | 2013-03-20 |
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CN2012104734984A Pending CN102975936A (en) | 2012-11-21 | 2012-11-21 | Coating method of woven bag |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103436109A (en) * | 2013-08-23 | 2013-12-11 | 吴江市英力达塑料包装有限公司 | Antiskid coating suitable for woven bags and preparation method thereof |
Citations (5)
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CN1095350A (en) * | 1993-05-20 | 1994-11-23 | 何春武 | Directly spraying plastics technology for woven plastic packing bag |
CN1177620A (en) * | 1997-07-17 | 1998-04-01 | 孙文明 | Coating material for surface-coating of plastic braided bag or paper bag |
CN101397758A (en) * | 2007-09-29 | 2009-04-01 | 汪有坤 | Production method of digital printing textile fabric and textile fabric made thereby |
CN101413607A (en) * | 2008-11-27 | 2009-04-22 | 泰州五行消防水带有限公司 | Single-surface glue water tape and making method thereof |
CN102766918A (en) * | 2012-07-17 | 2012-11-07 | 尚勇 | Antioxidant and ultravioresistant polypropylene woven bag raw material |
-
2012
- 2012-11-21 CN CN2012104734984A patent/CN102975936A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1095350A (en) * | 1993-05-20 | 1994-11-23 | 何春武 | Directly spraying plastics technology for woven plastic packing bag |
CN1177620A (en) * | 1997-07-17 | 1998-04-01 | 孙文明 | Coating material for surface-coating of plastic braided bag or paper bag |
CN101397758A (en) * | 2007-09-29 | 2009-04-01 | 汪有坤 | Production method of digital printing textile fabric and textile fabric made thereby |
CN101413607A (en) * | 2008-11-27 | 2009-04-22 | 泰州五行消防水带有限公司 | Single-surface glue water tape and making method thereof |
CN102766918A (en) * | 2012-07-17 | 2012-11-07 | 尚勇 | Antioxidant and ultravioresistant polypropylene woven bag raw material |
Non-Patent Citations (1)
Title |
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杨宇润等: "100%固含量喷涂聚氨酯(脲)弹性体技术", 《聚氨酯工业》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103436109A (en) * | 2013-08-23 | 2013-12-11 | 吴江市英力达塑料包装有限公司 | Antiskid coating suitable for woven bags and preparation method thereof |
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Application publication date: 20130320 |