How to choose a good PE plastic bag, do you know?

People have a common characteristic: they hope to buy good products when using anything. Take ordering PE plastic bags as an example. Many customers need high-quality PE plastic bags that are powder-free and easy to open. Below, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will explain what PE plastic bags are, common types of PE plastic bags, and how to choose high-quality PE plastic bags.

I. Introduction to PE Plastic Bags

PE plastic bags are bags made of PE, or polyethylene. Polyethylene is a typical thermoplastic plastic. It is an odorless, tasteless, non-toxic, combustible white powder. The molded PE resin is a waxy granule extruded and granulated. Its appearance is milky white. The melting point of polyethylene is 100-130℃. It has good low-temperature resistance and maintains good mechanical properties at -60℃, but its application temperature is generally between 80-110℃.

II. PE Common Types of Plastic Bags

Classified by density: PE is divided into LDPE, LLDPE, and HDPE, etc.

Classified by manufacturing process: PE flat bags, self-sealing bags, zipper bags, envelope bags, perforated shopping bags, handle shopping bags, zipper bags, PE films, etc.

1. PE flat bags are made with a relatively simple production process. After the machine blows the film, it is cut into bags on the cutting machine, and the bottom is sealed.

2. Self-sealing bags have a strip when the machine blows the film, which can be manually sealed. Unlike zipper bags, these two types of bags are often confused.

3. Zipper bags are made with an independent strip on the PE film. The bag has indentations on both sides, while the self-sealing bag does not. Self-sealing bags have fewer printing colors, while zipper bags can print complex patterns.

4. Envelope bags have a tongue like an envelope, with a strip of adhesive on the tongue. Folding it over seals the bag.

5. Perforated shopping bags have a hole punched in the appropriate position at the top of the flat bag to allow the bag to be lifted.

6. Handle shopping bags have a plastic strip added to the top of the bag for easy lifting. This process requires manual completion and is relatively more expensive.

7. PE film is a thin film blown by a machine that is not made into a bag. There are also stretch films and shrink films.

III. Recommended Suppliers of High-Quality PE Plastic Bags

Shunxingyuan Packaging has successfully made PE plastic bags possess high transparency, powder-free, and easy-opening industry advantages by adjusting the raw material formula and reasonably optimizing the production process. Shunxingyuan Packaging's PE plastic bags look pure without any impurities, no wrinkles, no stains, and the surface feels smooth, delicate, and has super strong toughness. In addition, Shunxingyuan Packaging's PE plastic bags have more advanced technology, fine quality control, and can meet high-efficiency production.