The kraft paper bag

Kraft paper bag is a kind of packaging container made of paper-plastic composite material or pure kraft paper. The inner material is generally made of LDPE, which is non-toxic, odorless, non-polluting, low-carbon and eco friendly. It is one of the most popular eco-friendly packaging materials on the market.

Kraft paper bags are based on all wood pulp paper. The colors are divided into white kraft paper and yellow kraft paper. Although their colors are different, they are the same in performance. When making kraft paper packaging bags, PP material is generally used on the paper plus one The layered film plays a waterproof role. The strength of the bag can be made into one to six layers according to the customer’s requirements, and the printing and bag making are integrated. The opening and back cover methods are divided into heat sealing, paper sealing and paste bottom.

Scope of application:

It can be used to package chemical raw materials, food, snacks, seasonings, hardware, pharmaceutical additives, building materials, supermarket shopping, clothing and other industries suitable for kraft paper bag packaging.

According to the material, it can be divided into: A. pure kraft paper bag; B . paper aluminum composite kraft paper bag (kraft paper composite aluminum foil); C: woven bag composite kraft paper bag (generally larger bag type); D, paper-plastic composite packaging bag

According to the bag type, it can be divided into: A. three-side sealing kraft paper bag; B. side organ kraft paper bag; C. self-supporting kraft paper bag; D. zipper kraft paper bag; E. self-supporting zipper kraft paper bag

Kraft paper bags have good environmental performance and are loved by many countries in the world. It also has good printability. What are the types of kraft paper bags?

1. Small white kraft paper bags. Generally, these bags are large in quantity and widely used. Therefore, many businesses require this kind of kraft paper bags to be cheap and durable. Usually, the method of this kind of kraft paper bags is machine-shaped, machine-sticked, and completely by machine. operational.

2. The practice of medium-sized kraft paper bags. Usually, medium-sized kraft paper bags are made of kraft paper bags that are machined and synthesized and then manually pasted with ropes. Because domestic kraft paper bag forming equipment is limited by the molding size, and kraft paper bags The rope sticking machine can only stick the rope of the smaller tote bag, so the practice of the kraft paper bag 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 should be made by hand. There is no machine in China that can solve these kraft paper bags, so they can only be made by hand. The production cost of kraft paper bags is high, and the quantity is not large.

4. The production method of kraft paper packaging bags is generally machine batch production, and the quantity of one production is generally more than 10,000.