1. What is a self-supporting zipper bag

Self-supporting zipper bags are generally composite soft packaging, composed of polypropylene OPP, polyester PET, nylon, matte film, aluminum foil, cast polypropylene, polyethylene, kraft paper and even woven bags. It is a packaging product that integrates a variety of packaging advantages, with low cost and exquisite printing. The product has the characteristics of anti-static, anti-ultraviolet, moisture-proof, oxygen shading, cold resistance, oil resistance, high temperature resistance, preservation, and strong oxygen barrier.

Self-supporting zipper bags are widely used in industrial packaging, daily chemical packaging, food packaging, medicine, health, electronics, aerospace, science and technology, military and other fields.

2. Types of self-supporting zipper bags

Zipper bag refers to a self-supporting zipper bag that does not use any tools. There are clip chain self-sealing bags, self-adhesive self-sealing bags, etc.

Chain clip self-sealing bag (also known as tight bag, composed of any bag, sealed bag, chain clip bag, bone bag, English: zipper bag, foldable bag, zipper closed bag, resealable bag), a plastic bag, Can be re-sealed by blow molding polyethylene (LDPE) and high-pressure linear polyethylene (LLDPE) and making bags by hot pressing. Commonly used materials are PE, EVA, pet, composite bags, etc.

There are many types of self-adhesive sealed bags. Use a single film cross-cut fold, double-sided heat seal, and then glue on one side of the bag. Commonly used materials include OPP self-adhesive, express bag (multi-layer co-extruded film), PP, PVC, etc.

What are the advantages of self-supporting zipper bag PE zipper bag:

(1) Chemical resistance;

(2) The self-supporting zipper bag is shiny and partially transparent or translucent;

(3) Most of them are good insulators;

(4) self-supporting zipper bag light and firm;

(5) Convenient processing, mass production and low price;

(6) self-supporting zipper bag has a wide range of uses, various effects, easy coloring, resistance to local high temperature.

It is well known that food packaging bags are consumables on the market. Now many products must be packed in bags, because the birth of food bags has greatly reduced the trouble of many enterprises. However, when it is convenient, there will be some problems, that is, food manufacturers should pay more attention to buying packaging bags. I don't know if they match their products. In addition, many packaging bags do not meet the standards.

1. First of all, when making food packaging bags, we should know whether the base film of the main raw material is plastic film? Is it the composite material of our products?

Are the production dates and nutritional facts tables on top of your own products?

3. For nitrogen-filled packaging roll film and kraft paper self-supporting packaging bags, merchants must pay attention when choosing cooperative packaging bag manufacturers. They must find companies with good quality and good service to cooperate to avoid many problems.