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Valve pocket classification

人气: Date: 2019-12-08 Popularity:
1. Paper-plastic compound valve pocket is made of plastic woven bag (abbreviated as base fabric) as the base material and compounded by casting method (cloth / film / paper compound is three-in-one);
2. The kraft paper valve pocket is made of kraft paper (the kraft paper is mainly divided into imported kraft paper and domestic kraft paper). The number of layers of kraft paper generally varies from one layer to six layers according to the application, and the middle can be coated or PE plastic film.
3. PE valve pocket: It is commonly known as the valve bag, which is made of polyethylene film, and the thickness of the film is generally between 8-20 wires.
4. Low melting point valve pocket: made of low melting point polyethylene film, the thickness of the film is generally between 8-20 silk, suitable for large-scale production and use of chemical companies on the assembly line, which can add less pollution and reduce the labor intensity of workers.
5. Composite material valve pocket: It is a new material with the printability of paper and the moisture resistance and firmness of plastic.
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