So far, the types of self-supporting zipper bags are basically divided into the following five types:
1. Ordinary self-supporting bag: the self-supporting bag in general form is in the form of four sealing edges, which can not be re closed and repeatedly opened. This kind of self-supporting zipper bag is generally used in the industrial supplies industry.

2. With suction nozzle: it is more convenient to pour or absorb contents, and can be re closed and repeatedly opened, which can be considered as the combination with ordinary bottle mouth. This kind of packing is generally used in daily necessities packaging, and it is used to hold liquid, colloid and semi-solid products such as beverage, shower gel, shampoo, tomato paste, edible oil, jelly, etc.

3. With zipper: it can also be re closed and re opened. Because the zipper is not closed and the sealing strength is limited, this form is not suitable for packaging liquid and volatile substances. According to the different ways of edge sealing, it can be divided into four edge sealing and three edge sealing. Four edge sealing refers to that there is a layer of ordinary edge sealing besides the zipper sealing when the product is delivered from the factory. When using, the ordinary edge sealing needs to be torn off first, and then the zipper is used to realize the repeated sealing. This method solves the problem that the zipper edge sealing strength is small and is not conducive to transportation. The three edge sealing is directly used as a zipper edge sealing, which is generally used to hold light products. Self supporting zipper bags are generally used to pack some light solids, such as candy, biscuits, jelly, etc., but the self-supporting bags with four edges can also be used to pack heavy products such as rice and cat litter.
4. Imitation mouth type: it combines the convenience of self-supporting bag with suction nozzle and the low price of ordinary self-supporting bag. The function of suction nozzle is realized by the shape of bag body itself. However, the mouth shaped self-supporting bag can not be sealed and opened repeatedly. Therefore, it is generally used in the packaging of liquid, colloidal and semi-solid products such as drinks and jelly.
5. Special shaped self-supporting bag: it refers to the new self-supporting bag of various shapes, such as waist closing design, bottom deformation design, handle design, etc. With the development of society, the improvement of people's aesthetic level and the intensification of competition in various industries, design and printing have become more and more colorful, with more and more forms of expression. The development of special-shaped self-supporting bags is gradually replacing the traditional self-supporting bags. http://www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
Aluminum foil packaging bags, mask bags, self-supporting zipper bags, eight side sealing bags, red wine bags, dog food bags, beverage bags, box bags, packaging roll film, perforated fruit bags, Dongguan bate packing material Co., Ltd.