Weaving yarn, weaving bag prepared by using weaving yarn, and production method of weaving bag

Abstract

The present invention relates to the technical field of chemical industry, more particularly to a weaving yarn with characteristics of high tension load, long service life and wear resistance, a weaving bag prepared by using the weaving yarn, and a production method of the weaving bag, wherein the weaving yarn comprises, by mass, 20-30 parts of an ethylene-vinyl acetate copolymer, 35-37 parts of polyvinyl alcohol, 10-15 parts of isocyanate, 25-35 parts of polyether diol, 15-23 parts of diethyltoluenediamine, 5-10 parts of tributyl citrate, 1 part of turpentine oil, 0.5-2 parts of nanometer calcium carbonate, 5-12 parts of linear low density polyethylene, 3-5 parts of isocyanate, 5-10 parts of polyether diol, and 12-15 parts of diethyltoluenediamine. The invention further discloses the weaving bag production method, which comprises: carrying out hot melting on the raw materials, filtering, extruding to form a sheet film, cooling the sheet film, carrying out air drying, coating a material layer, carrying out air drying, cutting into profile yarn, heating, stretching, and cooling to form common flat yarn, wherein the flat yarn is weft yarn and warp yarn, and the weaving bag is woven from the weft yarn and the warp yarn.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a braided silk, a woven bag made of the braided silk and a weaving method. Background technique [0002] Plastic woven bags are divided into polypropylene bags and polyethylene bags according to the main material composition; according to the sewing method, they are divided into seamed bottom bags and seamed bottom bags. At present, it is widely used as a packaging material for fertilizers, chemical products and other items. Its main production process is to use plastic raw materials to extrude film, cut, and unidirectionally stretch into flat yarn, and then weave warp and weft to obtain products, which are generally called woven bags. The packaging bags made of polypropylene flat yarn produced by traditional technology have poor weather resistance, and are prone to problems such as hardening, brittleness, peeling, peeling, and breakage in winter in the north. In the s...

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Problems solved by technology

[0004] The inventor obtained permission for the above formula and carried out production and found that although the silk for woven bags is non-slip and wear-resistant, it is not easy to become brittle and hard when the temperature is low in cold winter; The woven bags used for transportation and storage are usually hollowed out, and need to withstand strong tension, while the formulas used in the prior art are hollowed out once they are adopted.

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