Paper bags are becoming more and more common in our daily life. While the paper bag is convenient for daily shopping, its material composition and aesthetic design also attract more and more attention.
A paper bag is a flat tubular container made of paper or paper composite material with one end open. Paper bag is a big category of paper packaging container, which is second only to corrugated box in the use of packaging. It has a wide range of uses and is widely used in transportation packaging and sales packaging of commodities. The advantages of paper bag packaging are simple and cheap, easy to carry, the lowest transportation price, but also can prevent pollution, suitable for food and scattered commodities, clothing packaging; The outer surface of paper bag is good for printing, which is conducive to advertising. Bags can be reused, and discarded paper bags are easy to recycle and dispose of.
Paper bags can be divided into envelope type, flat bag type, square bottom bag type, six square bottom bag type, M shape folding and portable square bottom bag type, etc. The sealing methods mainly include bonding, stitching, tape sealing, nail sealing and hot pressing sealing.

There are two main types of paper bag production: bonding and sewing. Paper bag materials used most are paper bags and kraft paper, including a variety of elastic paper bags and reinforced paper bags. In addition, according to the need can also choose a variety of bleached, semi-bleached, added color sulfate wood pulp made of strong paper and board and coated processing paper with waterproof, moisture-proof, impermeable and insect-proof functions. There are paper, asphalt, fabric, plastic and other materials composite processing of composite paper manufacturing high strength waterproof moisture-proof paper bags and other special purpose paper bags.