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Technology for coating inside woven bag by using polyether glycol composition

A polyether glycol, woven bag technology, applied in the direction of textile and paper making, single-component polyolefin artificial filament, spray/jet textile material treatment, etc.

Inactive Publication Date: 2013-03-20
QINGDAO PENGHAI SOFT CO LTD
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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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  • Technology for coating inside woven bag by using polyether glycol composition
  • Technology for coating inside woven bag by using polyether glycol composition
  • Technology for coating inside woven bag by using polyether glycol composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 0.4 part by weight of antioxidant 1010, 0.5 part by weight of ultraviolet absorber UV-327, 0.6 part by weight of auxiliary antioxidant DLTP according to 100 parts by weight of polypropylene resin; pass the obtained mixture through The extruder and the wire drawing machine are stretched and wound to make polypropylene filaments. On a circular loom, polypropylene filaments are used as warps and wefts to weave into a tubular fiber braided layer, and then a coating is sprayed on the inner side of the braided layer to form an inner lining, and the coating includes the following components (parts by mass) and content:

[0013]

[0014] After the above-mentioned coating components are prepared and mixed thoroughly on site, under the conditions of temperature of 45℃ and pressure of 10MPa, use a spray gun to spray on the inner side of the fiber braided layer to form an inner lining coating with a spray thickness of 0.1mm, and the inner surface is obtained after hot air dry...

Embodiment 2

[0016] Repeating Example 1, the coating process of the woven bag is roughly the same as that in Example 1, except that the coating includes the following components (parts by mass) and content:

[0017]

[0018] The spraying temperature is 60℃, the spraying pressure is 15MPa, and the spraying thickness is 0.6mm.

Embodiment 3

[0020] Repeating Example 1, the coating process of the woven bag is roughly the same as that in Example 1, except that the coating includes the following components (parts by mass) and content:

[0021]

[0022] The spraying temperature is 53℃, the spraying pressure is 13MPa, and the spraying thickness is 0.3mm.

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Abstract

The invention discloses a technology for coating inside a woven bag by using a polyether glycol composition. The technology comprises the following steps of: firstly, weaving a cylindrical fiber woven layer by using warps and wefts, both of which are made of fiber materials, on a circular weaving machine, then, spraying the coating prepared on site to the inner side of the woven layer to form a liner, and drying to obtain an inside-sprayed woven bag product, wherein the coating comprises the following components in parts by weight: 26-30 parts of ethylene-vinyl acetate copolymer, 5-15 parts of polyvinyl alcohol, 16-25 parts of isocyanate, 36-45 parts of polyether glycol, and 10-30 parts of diethyl toluenediamine.

Description

technical field [0001] The invention relates to a coating method, in particular to a technology for coating a polyether glycol composition inside a woven bag. Background technique [0002] Woven bags are widely used packaging for conveying powdery products in industry, agriculture, construction and other industries. Woven bags are usually woven from cross-woven silk with tiny gaps at the intersection of the braided silk. In order to make up for this defect, polyethylene resin has been used for the surface coating of woven bags. This kind of coating is easy to age and fall off, and it is not wear-resistant and has a short service life. The manufacturing method of the surface-coated woven bag is as follows: first weaving a fiber tube on a circular loom, then adding a coating resin into an extruder, extruding a hot-melt film through the extruder, and coating it on the woven tube The outer surface of the object becomes a product. This production method requires a lot of prod...

Claims

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Application Information

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IPC IPC(8): D06M15/568D06M15/333D06B1/02D01F6/46D06M101/20
Inventor 于忠清王兵
Owner QINGDAO PENGHAI SOFT CO LTD
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