2019年4月25日星期四

How is woven plastic bags made?



First of all, it should be distinguished that the production process of woven plastic bags, which are several in one, two in one and three in one, is to compound or coat the woven fabric, coat the compound material and paper or film. The obtained barrel cloth or sheet cloth can be cut, printed, sewed and made into ordinary sewing bottom bags. It can also be punched, folded, cut, printed and sewed into cement bags. The sheet cloth obtained can be sewed, bonded, printed, cut, pasted and made into paste bottom bags. It can also be welded, rolled and made into tarpaulins and geotextiles.

Compound bagging is the key technology.




The principle of coating is that the resin is coated on the base material braided fabric in the melting state. The melted resin is coated on the braided fabric and cooled immediately to form a two-in-one braided fabric. If the melt resin film is sandwiched between the woven fabric and paper or plastic film, and then cooled to get three-in-one braided fabric coating, the flat fabric can be coated on one side to get sheets, and the cylinder cloth can be coated on both sides to get coated cylinder cloth. The coated woven fabrics can be printed, cut and sewed into various bags, and the wide coated fabrics can also be rolled out as tents.

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