What is a kraft paper bag?

Kraft paper bags are non-toxic, tasteless, and non-polluting, in line with national environmental protection standards, with high strength and high environmental protection, and are currently one of the most popular environmentally friendly packaging materials in the world. The use of kraft paper to make kraft paper bags has become more and more widely used. Shopping in supermarkets, shopping malls, shoe stores, clothing stores, etc., generally have kraft paper bags, which are convenient for customers to carry the purchased items. Kraft paper bag is an environmentally friendly packaging bag with a wide variety of types.

The structure of kraft paper bag: kraft paper bag is a kind of packaging container made of composite material or pure kraft paper. It is non-toxic, tasteless, non-polluting, low-carbon and environmentally friendly. It meets national environmental protection standards. It has high strength and high environmental protection. It is currently the most popular in the world. One of the environmentally friendly packaging materials. Kraft paper bags are generally classified as follows: 1: According to the material, it can be divided into: a. Pure kraft paper bags; b. Paper-aluminum composite kraft paper bags (cow leather composite aluminum foil); c: Woven bag composite kraft paper bags (generally larger bags). 2: 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. 3: According to the appearance of the bag, it can be divided into: a. Valve bag; b. Square bottom bag; c. Seam bottom bag; d. Heat sealing bag; e. Heat sealing square bottom bag.

Kraft paper bags are made of wood pulp paper as the base material. The colors are divided into white kraft paper and yellow kraft paper. The paper can be coated with a layer of PP material to play a waterproof role. The strength of the bag can be made from one to six layers according to customer requirements. , Printing and bag making are integrated. The opening and back cover methods are divided into heat sealing, paper sealing and paste bottom. The scope of application generally includes: chemical raw materials, food, pharmaceutical additives, building materials, supermarket shopping, clothing and other industries that are suitable for kraft paper bag packaging.