Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coating method for inside of woven bag

A woven bag, coating technology, used in bags, textiles, sacks, etc.

Active Publication Date: 2013-03-20
湖南安福环保科技股份有限公司
View PDF3 Cites 2 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 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 a circular loom, polypropylene yarn is used as warp and weft to weave a cylindrical fiber braided layer, and then the paint is sprayed on the inner side of the braided layer to form an inner lining. The paint includes the following components (parts by mass) and content:

[0017] Ethylene-vinyl acetate copolymer 16

[0018] Polyvinyl alcohol 26

[0019] Isocyanate 30

[0020] Polyether diol 20

[0021] Diethyltoluenediamine 10.

[0022] 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...

Embodiment 2

[0024] 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:

[0025] Ethylene-vinyl acetate copolymer 20

[0026] Polyvinyl alcohol 35

[0027] Isocyanate 45

[0028] Polyether diol 35

[0029] Diethyltoluenediamine 20

[0030] The spraying temperature is 60°C, the spraying pressure is 15MPa, and the spraying thickness is 0.6mm.

Embodiment 3

[0032] 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:

[0033] Ethylene-vinyl acetate copolymer 18

[0034] Polyvinyl alcohol 30

[0035] Isocyanate 38

[0036] Polyether diol 28

[0037] Diethyltoluenediamine 15

[0038] The spraying temperature is 53°C, the spraying pressure is 13MPa, and the spraying thickness is 0.3mm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 [0001] The invention relates to a coating method, in particular to a coating method for woven bags. 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 requirem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B65D33/00D03D3/02D03D15/00C09D129/14C09D123/08C09D175/08D03D15/283D03D15/50
Inventor 张明
Owner 湖南安福环保科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com