What is a printed kraft paper bags？
Feb 17, 2022
The printed kraft paper bags is non-toxic, odorless, non-polluting, has high strength and high environmental protection, and is one of the popular environmental protection packaging materials. The use of kraft paper to make kraft paper bags has become more and more widely used. When shopping in supermarkets, shopping malls, shoe stores, clothing stores, etc, there are generally printed kraft paper bags available to facilitate customers to carry the purchased items. Kraft paper bag is an environmentally friendly packaging bag with a wide variety.
Structure
The printed kraft paper bags is based on all wood pulp paper, and the color is divided into white kraft paper and yellow kraft paper. PP material can be used to coat a layer of film on the paper to play a waterproof role, and the printing and bag making are integrated. The opening and back cover methods are divided into heat sealing, paper sealing and paste bottom.
Type
According to the material can be divided into：
Production Method
Printed kraft paper bags are favored by everyone because of their environmental protection characteristics. Now most countries are using kraft paper bags. So there are several ways of kraft paper bags.
1. Small white kraft paper bags. Generally, this kind of bag is large in quantity and widely used. Because many businesses require this kind of kraft paper bag to be cheap and durable, usually the method of this kind of kraft paper bag is machine-shaped, machine-attached, and completely operated by the machine.
2. In the practice of medium-sized kraft paper bags, under normal circumstances, medium-sized kraft paper bags are made of kraft paper bags made by machine and then manually pasted with ropes. Because domestic kraft paper bag forming equipment is limited by the molding size, and kraft paper bags are tied with ropes The machine can only stick the strings of smaller handbags, so the practice of kraft paper bags is limited by the machine. Many bags cannot be produced by the machine alone.
3. Large bags, reverse kraft paper bags, thicker yellow kraft paper bags, these kraft paper bags are made by hand. There is no machine in China that can solve these kraft paper bags, so they can only be made by hand. This kind of kraft paper bag The production cost is high, and the quantity is not very large.
No matter what kind of kraft paper bag is above, if the quantity is not large enough, it is generally made by hand, because the loss of machine-made kraft paper bags is large, and there is no way to solve the problem of small quantities of kraft paper bags.