Packaging bags refer to bags used for packaging various articles, which are widely used in daily life and industrial production.

History of Development

The commodity nature of packaging itself is becoming more and more obvious. It has become a special product which is no longer dependent on commodity production. It is a product which can not be separated from all commodities and is widely used.

Chinese scientists have developed an environmentally friendly plastic bag made of electrolyte, which can not only be decomposed harmlessly, but also be soluble in water.

According to scientists, it takes hundreds of years for products made of common polymer plastics to be completely decomposed and will exist on Earth for hundreds of years.

The new environmentally friendly plastic bags will not release harmful substances during the decomposition process, and can even be decomposed into natural substances favored by insects. Packaging bags manufacturers have played a great role in protecting the natural environment.

classification

According to the production process, it is often divided into plastic packaging bags and composite packaging bags.

According to the raw material classification: high-pressure polyethylene plastic bags, low-pressure polyethylene plastic bags, polypropylene plastic bags, polyvinyl chloride plastic bags and so on.

Classified by shape: vest bag, straight cylinder bag, three-dimensional bag, square bottom bag. Sealing pockets, tape bags, special-shaped bags, etc.

Plastic packaging bags include plastic woven bags and plastic film bags. The former has the characteristics of light weight, high strength and corrosion resistance. After adding plastic film lining, it can be moisture-proof and moisture-proof. The light bag weight is less than 2.5 kg, the medium bag weight is 25-50 kg, and the heavy bag weight is 50-100 kg. The light weight of the latter is more than 1 kg; the medium weight is 1-10 kg; the heavy weight is 10-30 kg; and the container weight is more than 1000kg.

Plastic woven bag

Plastic woven bags are made up of polypropylene bags and polyethylene bags according to their main materials, and are divided into sewing bottom bags and sewing edge bottom bags according to sewing methods. After warp and weft knitting products, commonly known as woven bags.