Paper-plastic composite bag and preparation method thereof
A paper-plastic composite bag, extrusion compounding technology, applied to chemical instruments and methods, bags, sacks, etc., can solve the problems of unguaranteed quality and safety, deterioration of hazardous chemicals, and inability to effectively prevent moisture, etc., to achieve anti-static effects Good, the preparation method is simple, and the effect of improving the antistatic ability
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Embodiment 1
[0029] Prepare paper-plastic composite bags as follows:
[0030] (1) Polypropylene is melted and cast to obtain a polypropylene film; the film is cut and stretched to obtain a polypropylene flat filament, and the polypropylene flat filament is woven to obtain a polypropylene woven cloth;
[0031] (2) Mix polyethylene and antistatic agent with a weight ratio of 4:96, and extrude to obtain a film; the film is cut and stretched to obtain an antistatic flat yarn, and the antistatic flat yarn is woven to obtain an antistatic weaving cloth;
[0032] (3) Spray fire retardant and moisture-proof agent on the surface of kraft paper to obtain the base layer;
[0033] (4) The antistatic woven cloth, the flame retardant layer, the polypropylene woven cloth and the base layer are extruded at 300°C to obtain a composite cloth; the flame retardant layer is woven from flame retardant acrylic fibers;
[0034] (5) The composite cloth is cut, folded, and heat-sealed at 180-220° C. to obtain a p...
Embodiment 2
[0045] Prepare paper-plastic composite bags as follows:
[0046] (1) Polypropylene is melted and cast to obtain a polypropylene film; the film is cut and stretched to obtain a polypropylene flat filament, and the polypropylene flat filament is woven to obtain a polypropylene woven cloth;
[0047] (2) Mix polyethylene and antistatic agent with a weight ratio of 5:95, and extrude to obtain a film; the film is cut and stretched to obtain an antistatic flat yarn, and the antistatic flat yarn is woven to obtain an antistatic weaving cloth;
[0048] (3) Spray fire retardant and moisture-proof agent on the surface of kraft paper to obtain the base layer;
[0049] (4) The antistatic woven cloth, the flame retardant layer, the polypropylene woven cloth and the base layer are extruded at 310°C to obtain a composite cloth; the flame retardant layer is made of flame retardant viscose fiber and aramid fiber woven;
[0050] (5) The composite cloth is cut, folded, and heat-sealed at 180-2...
Embodiment 3
[0059] Prepare paper-plastic composite bags as follows:
[0060] (1) Polypropylene is melted and cast to obtain a polypropylene film; the film is cut and stretched to obtain a polypropylene flat filament, and the polypropylene flat filament is woven to obtain a polypropylene woven cloth;
[0061] (2) Mix polyethylene and antistatic agent with a weight ratio of 5.5:94.5, and extrude to obtain a film; the film is cut and stretched to obtain an antistatic flat yarn, and the antistatic flat yarn is woven to obtain an antistatic weave cloth;
[0062] (3) Spray fire retardant and moisture-proof agent on the surface of kraft paper to obtain the base layer;
[0063] (4) The antistatic woven cloth, the flame retardant layer, the polypropylene woven cloth and the base layer are extruded at 340°C to obtain a composite cloth; the flame retardant layer is woven from flame retardant viscose fibers;
[0064] (5) The composite cloth is cut, folded, and heat-sealed at 180-220° C. to obtain a...
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