How to define the high quality of paper bags – a brief description of paper bags

First, processing technology

After the printing of the portable paper bag, it is necessary to form a film after the film is pressed and the box is worn. The rope of the portable paper bag can be nylon rope, cotton rope or paper rope. If the size of the portable paper bag is large, the rivet should be reinforced at the rope hole to resist tensile force.

Second, paper

Paper for portable paper bags can be used with 157g and 200g coated paper. If you need to match the heavier package, you can use 300g coated paper or more than 300g paper to print. If you choose to use coated paper or cardboard to print (now the market is generally used 250 grams of white cardboard), generally need to cover the film or sub-film to add its strength. In addition, white kraft paper is environmentally resistant and has recently been used more and more in the manufacture of portable paper bags. Generally, 120g or 140g of white or yellow kraft paper can be used. After printing, oil is needed to maintain the ink. Wipe dirty.

Third, scale

The size of a portable paper bag is generally determined by the size of the package. The general specification scale is divided into three open, four open or three open. Each paper bag is divided into two types: positive or large. Its net size consists of length × width × height.

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