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Internal coating technology for woven bag

A woven bag and coating technology, applied in the technical field of coating inside the woven bag

Inactive Publication Date: 2013-04-17
青岛天鹅新材料织造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the existing woven bag surface coating methods and provide a wear-resistant, corrosion-resistant, high-strength, long-life , while the production process is simple, high efficiency, non-polluting woven bag coating method

Method used

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  • Internal coating technology for woven bag
  • Internal coating technology for woven bag
  • Internal coating technology for woven bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] According to the polypropylene resin that is 100 parts by weight, add the antioxidant 1010 that is 0.4 part by weight, the ultraviolet absorber UV-327 that is 0.5 part by weight, the auxiliary antioxidant DLTP that is 0.6 part by weight; The mixture obtained is passed The extruder and wire drawing machine are stretched and wound to make polypropylene filament. On the circular loom, use polypropylene silk as warp and weft to weave into tubular fiber braided layer, then paint is sprayed on the inner side of braided layer to form inner liner, and described paint includes following components (mass parts) and content:

[0014]

[0015] After the above-mentioned coating components are fully mixed on-site, under the conditions of temperature 45°C and pressure 10MPa, use a spray gun to spray on the inner side of the fiber braided layer to form a lining coating with a spray thickness of 0.1mm and dry it with hot air. Inner sprayed woven bag.

Embodiment 2

[0017] Repeat embodiment 1, the coating process of woven bag is roughly the same as embodiment 1, and difference is that coating comprises following component (mass part) and content:

[0018]

[0019] The spraying temperature is 60°C, the spraying pressure is 15MPa, and the spraying thickness is 0.6mm.

Embodiment 3

[0021] Repeat embodiment 1, the coating process of woven bag is roughly the same as embodiment 1, and difference is that coating comprises following component (mass part) and content:

[0022]

[0023] The spraying temperature is 53°C, the spraying pressure is 13MPa, and the spraying thickness is 0.3mm.

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Abstract

The invention relates to an internal coating technology for a woven bag. The internal coating technology for the woven bag comprises the following steps: weaving warps and wefts made of fiber materials into a cylindrical fiber woven layer on a circular weaving machine; spraying coating prepared on site on the inner side of the woven layer to form lining, wherein the coating comprises the following components in part by weight: 16 to 20 parts of ethylene-vinyl acetate copolymer, 5 to 15 parts of polyvinyl alcohol, 16 to 25 parts of isocyanate, 5 to 15 parts of polyether glycol and 7 to 11 parts of diethyltoluenediamine; and drying to obtain the internally coated woven bag product.

Description

technical field [0001] The invention relates to a coating method, in particular to a coating technology inside a woven bag. Background technique [0002] Woven bags are widely used in industry, agriculture, construction and other industries to transport powder products. Woven bags are usually woven from cross-woven wires, and there are tiny gaps at the intersections of the woven wires. In order to make up for this defect, people have used polyethylene resin for the surface coating of woven bags. This coating is easy to age and fall off, is not wear-resistant, and has a short service life. The manufacturing method of this kind of surface coated woven bag is: weave the fiber tube on the circular loom first, then add the coating resin into the extruder, extrude the hot melt film through the extruder, and coat it on the braided tube The outer surface of the object becomes a product. This production method requires more production equipment, consumes a lot of energy, and has ...

Claims

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Application Information

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IPC IPC(8): D06M15/568D06M15/333D01F6/46D06B1/02D06M101/20
Inventor 王俊罡董福建张学刚朱彩凤
Owner 青岛天鹅新材料织造有限公司
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