What are the classifications, materials and uses of zipper bags

Ordinary zipper bag: Generally larger in size, the material is made of the woven bag, transparent PE or OPP plastic film, and the zipper is an ordinary plastic zipper, which is generally used to pack relatively large commodities.

File zipper bag: can hold more files, pens, and small items. The unique cold-resistant PVC double-layer material is selected and has good flexibility. Moisture-proof and waterproof, suitable for study, life, home, and travel.

Self-supporting zipper bag: generally larger in size, the material is made of the woven bag, transparent PE, or OPP plastic film. Packaging, large simple luggage bags, and other file zipper bags can hold more files, pens, and small items. The unique cold-resistant PVC double-layer material is selected and has good flexibility. Moisture-proof and waterproof, suitable for study, life, home, and travel.

Invisible zipper bag: also called bone zipper bag Invisible zipper bag is generally flexible composite packaging, made of polypropylene OPP, polyester PET, nylon, matte film, aluminum foil, cast polypropylene, polyethylene, kraft paper, and even woven bags and other materials Formed (generally 2--4 layers). Invisible zipper bags are widely used in various fields such as industrial packaging, daily chemical packaging, food packaging, medicine, hygiene, electronics, aerospace, science and technology, military industry, etc. Invisible zipper bags are generally aluminum-plastic composite bags. The packaging product combines the advantages of packaging with low cost and exquisite printing; the product has the characteristics of anti-static, anti-ultraviolet, moisture-proof, oxygen-proof and light-shielding, cold-resistant, oil-resistant and high-temperature resistant, fresh-keeping, oxygen-proof and easy-sealing.