Composite bags are bags made of two or more materials, which are bonded together by glue. This kind of packaging bag has strong resistance to puncture and tear, can resist cold and high temperatures, good isolation performance, strong protection performance, with impermeable to gas and moisture, not easily be attacked by bacteria and insects, good shape stability, not affected by changes in humidity.

There are many types of laminated bags, including center-seal bags, three-side-seal bags, organ bags, zipper bags, four-side-seal bags, shaped bags and so on. They can be used to package a variety of products, such as frozen seafood, crab sticks, sausages, ice cream, flour, milk powder, margarine, vegetable oil, fabric softener, insecticide, shower gel, instant noodles, rice, sugar, food coloring, fertilizers, potato chips, candies, chocolates, curry, aloe vera, rice and so on. In addition, composite bags can also be divided into container bags, general transportation packaging bags, small bags and so on. Container bags are suitable for transportation packaging, general transportation bags are suitable for outer packaging and transportation packaging, small bags are suitable for inner packaging, individual packaging and commercial packaging. These make the composite bags have a wide range of applications in the packaging industry!