Ton bag woven bag material and sewing. Mainly polyethylene (PE) in foreign countries, mainly polypropylene (PP) in domestic, is a thermoplastic resin produced by ethylene polymerization. Industrially, it also includes copolymers of ethylene and a few alpha-olefin. Polyethylene odorless, non-toxic, feel like wax, has excellent low temperature resistance (Z low application temperature can reach -70 ~ -100℃), good chemical stability, ability to most acid and alkali corrosion (not resistant to acid with oxidation properties), insoluble in normal solvents at room temperature, small water absorption, electrical insulation function is excellent; However, polyethylene is very sensitive to environmental stress (chemical and mechanical effects) and has poor heat resistance to aging. The properties of polyethylene vary from species to species, primarily depending on the molecular layout and density. Different production methods can be used to obtain products with different densities (0.91 ~ 0.96g/cm3). Polyethylene can be processed by the usual thermoplastic molding method (see plastic processing). It is widely used, mainly for making films, containers, pipes, monofilament, wire and cable, daily necessities, etc., and can be used as high-frequency insulation data for TV, radar, etc. With the development of petrochemical industry, the production of polyethylene has been rapidly developed, and the output value accounts for about 1/4 of the total output value of plastics. In 1983, the total international polyethylene production capacity was 24.65Mt, and the equipment under construction was 3.16Mt.
Polypropylene (PP)
A thermoplastic resin produced by polymerization of propylene. There are three configurations of isotactic, random and intertactic, and isotactic is the primary component of industrial products. Polypropylene also includes copolymers of propylene and a few ethylene. Usually translucent colorless solid, odorless and non-toxic. Because the layout is regular and highly crystallized, the melting point is as high as 167 ° C, heat resistance, and the products can be steam sterilized are its outstanding advantages. Density 0.90g/cm3, is the most lightweight general purpose plastic. Corrosion resistance, tensile strength 30MPa, strength, rigidity and transparency are better than polyethylene. The defect is poor resistance to low temperature impact and easy aging, but it can be overcome by modification and addition of antioxidants.
The color of the woven bag is usually white or gray, non-toxic and tasteless, and the damage to the human body is usually small, although it is made of various chemical plastics, but its environmental protection is strong, and the recovery is larger;
Linyi Jinhui plastic woven bags are widely used, mainly for the packaging and packaging of various items, and are widely used in industry;
The woven bag is made of polypropylene resin as the primary raw material, which is extruded and stretched into flat wire, and then woven and bagged.
The composite plastic ton bag woven bag is made of plastic woven cloth as the base material and is compounded by the casting method.
The product is used for packaging powder or granular solid materials and flexible articles. Woven bags are divided into 2-in-1 bags and 3-in-1 bags according to the primary information.
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