What kind self-reliance bags are there?

Self-reliance is a packet can be open without any support can stand the packing bag of object, he is like a river's lake in wulin developed golden independent. Can significantly improve the grade of the product, has a good visual effect, convenient use, safety, environmental protection, good sealing, can reduce the oxygen permeability can prolong the shelf life of products. So what is the classification and features of self-supporting bag? 1. Normal self-reliance bags: is the general form of self-reliance bags, adopt four edge sealing form, cannot be closed and repeat again open, the self-supporting bag commonly used in the industries of industrial supplies. 2. Independent packing bag with suction nozzle: self-reliance bags with suction nozzle easier to dump or absorption content, can be closed and open repeatedly, it can be considered to be standing bags and combination of ordinary bottle. The free-standing suction nozzle bag is usually used in liquid, gel, semi-solid products such as drinks, ketchup, oil, jelly, shower gel, shampoo and other drinks, sauce and commodity packaging. 3. A zippered self-reliance bags: a zippered self-reliance bags can also be to close and open again and again. Because zipper form was not closed and seal strength is limited, so the form is not suitable for application in packaging liquid and volatile substances. According to the different way of edge sealing, divided into three edge-sealing four edge-sealing self-reliance self-reliance bags and packing bags. Zipper self-reliance bags are normally used for packing lighter solids, such as candy, biscuit, jelly, dried fruit, etc. , but four edge-sealing self-reliance bags can also be used for packing the heavier products, such as rice and litter. 4. Alien self-reliance bags, according to the packing, according to the traditional bag type design, such as the waist design, shape design, at the bottom of the handle design, etc. , is a new type of the alien free-standing bags. With the progress of the society and the improvement of people's aesthetic standard and industry competition, self-reliance bag design and printing is becoming more and more rich and colorful, the form is also more and more. The development of special-shaped vertical bag gradually replaced the traditional vertical bag status.