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What is a brown paper bag?

What is a brown paper bag?

2021-11-09 18:10:01

What is a brown paper bag?  

Kraft paper bags are non-toxic, tasteless, pollution-free, in line with national environmental standards, with high strength, high environmental protection, is one of the most popular environmental protection packaging materials in the world.  Brown paper bags made of brown paper have been more and more widely used in supermarkets, shopping malls, shoe stores, clothing stores and other places, generally there will be brown paper bags supply, convenient for customers to carry the purchase of goods.  Brown paper bag is a kind of environmentally friendly packaging bag, which has many kinds.  

Kraft paper bag is made of whole wood pulp paper as the base material, the color is divided into white kraft paper and yellow kraft paper, can be coated with PP material on the paper, waterproof effect, bag strength can be made into one to six layers according to customer requirements, printing and bag making integration.  Opening and back sealing methods are divided into heat sealing, paper sealing and paste bottom.  

 

Scope of application  

Chemical raw materials, food, medical additives, building materials, supermarket shopping, clothing and other suitable for kraft paper bag packaging industry.  

species  

1: according to the material can be divided into: pure kraft paper bag;  Paper aluminum composite kraft paper bag (kraft paper composite aluminum foil);  Woven bag compound kraft paper bag (generally larger bag type)  

2. According to the bag type, it can be divided into three sides sealed kraft paper bags;  Side organ kraft paper bag;  Kraft paper bag;  Zipper kraft paper bag;  Self - standing zipper kraft paper bag  

3: According to the appearance of the bag can be divided into: valve pocket;  Square bottom bag;  Seam bottom bag;  Heat seal pocket;  Heat sealed square bottom bag  

Production methods  

1, small white kraft paper bag, generally this bag number is large, the use of a wide range, because many businesses require this kraft paper bag is cheap and durable, usually this kraft paper bag is machine shaped, machine attached rope, completely operated by the machine.  

2, medium brown paper bag, under normal circumstances, after the medium is a brown paper bag machine joint forming after a person into a brown paper bag, put the rope by hand because of domestic molding equipment shaping size restrictions, a brown paper bag and kraft bag rope machine can stick a small bag of rope, so the practice of a brown paper bag is limited by a machine.  Many bags cannot be made by machine alone.  

3, big bags, reverse kraft paper bags, thick kraft paper bags, these kraft paper bags to purely handmade, domestic has not been able to solve these kraft paper bag molding machine, can only be made by hand, this kind of kraft paper bag production cost is high, the number is not very large.  

4. No matter what kind of kraft paper bag is above, if the number is not large enough, it is generally made by hand. Because of the large loss caused by machine production of kraft paper bags, there is no way to solve the small number of kraft paper bags.  

Brown paper bag because of its environmental characteristics, by the people's, especially almost all European countries in the use of kraft paper bags, paper bags is a kind of composite material production or pure kraft paper packaging container, non-toxic, tasteless, no pollution, low carbon environmental protection, in line with national environmental standards, with high strength, high environmental protection, is one of the most popular in the international environmental protection packaging materials.  

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