Kraft paper bags are non-toxic, odorless, non-polluting, comply with national environmental protection standards, high strength and high environmental protection, and are one of the most popular environmentally friendly packaging materials in the world. The use of kraft paper to make kraft paper bags is more and more widely used. When shopping in supermarkets, shopping malls, shoe stores, clothing stores and other places, there are generally kraft paper bags, which are convenient for customers to carry their shopping.
The kraft paper bag is based on all wood pulp paper, and the color is divided into white kraft paper and yellow kraft paper. You can use PP material to cast a layer of film on the paper 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 sealing methods are divided into heat sealing, paper sealing and paste backing.
Chemical raw materials, food, pharmaceutical additives, building materials, supermarket shopping, clothing, etc. are all suitable for the kraft paper bag packaging industry.
and its classification:
1: 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 size)
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