The classification and application of self-supporting bag

Self-supporting bag ( Doypack) Refers to a kind of flexible packaging bags have levels at the bottom of the support structure, not rely on any support and open the bag or not all can stand on its own. Due to its excellent display effect and large capacity, is being more and more widely used now. Self-supporting bag according to the shape of the main can be divided into the following four categories: 1. Common self-reliance bag is also called the edge-sealing self-reliance bags, normal four autoregulating, appearance is a rectangular or square, do not repeat the closed and open it. 2. Self-supporting bag with the mouth is already from the bottle and what flexible packaging packaging form, with a suction nozzle bag, suction nozzle can cover again after opening, can open closed after many times of flexible packaging form. Commonly used in beverage and jelly packaging. 3. Zipper self-reliance bags according to different types of sealing can be divided into four edge sealing and three autoregulating, quadrilateral sealing after refers to the flexible packaging in packaging products, in addition to the zipper, also need to be front cover side. When applicable, should be the edge tear. Three edge-sealing sealing side again, only in zipper edge sealing. Three edge sealing edge banding strength than four edge sealing of the small, often for the lighter products ( Such as candy, biscuit, etc. ) , four edge-sealing also can hold heavier products, Such as rice, etc. ) 。 Basic self-reliance zipper bag packaging on the market is in the form of four edge sealing. 4. Abnormity self-supporting bag or according to the requirements of the packaging, on the basis of traditional bag type change produced by the various shapes of new-style self-supporting bag, such as waist design, deformation at the bottom of the design, the design of the imitation and so on. Such as some plum packaging bag will make it round, to simulate a product's shape, more lovable. Self-supporting bag applications: self-reliance bag packaging is mainly used in the fruit juice drinks, sports drinks, bottled water, can suck jelly, spices and other products, in addition to the food industry, some washing supplies, daily cosmetics, use of medical supplies and other products is also gradually increasing. Liquid and solid, self-supporting bag packaging can have very good effect on stand and display effect, more get the favour of consumer, so now there are more and more manufacturers begin to use self-supporting bag. Self-reliance bag packaging has become a big trend of the future packaging.