Do you know the process features of compound bag

compound bag is made of polyester, nylon, aluminum foil and other special polyolefin film made composite film adhesive through dry compound process, and then through curing, cutting, cooking bags. Compound bag after the packaging of food, but also by the 121 ~ 135 ℃ high temperature sterilization, 30 ~ 40 min. Not only used for film bag to high temperature resistant, and used in the adhesive film adhesive to high temperature resistant, otherwise prone to film after cooking as well as the bonding strength between declining, delaminating phenomenon. The first in the market now for retort pouch composite adhesive. By the chemical industry research institute recently developed a kind of resistance to 135 ℃ high temperature cooking bags with adhesive, several computer composite test, the boiling resistance, resistance to content, health security are satisfied the requirements of domestic manufacturer.

composite after folding bag packaging of food, to the 121 ~ 135 ℃, 30 ~ 40 min high temperature sterilization, packing material used is high temperature resistant is necessary. Commonly used in cooking bag packaging material with polyester ( PET) , nylon ( NY) , aluminum foil, Al) , cast polypropylene ( CPP) And so on. Adhesive is to use high temperature resistant cooking two-component polyurethane adhesive. After dry type composite technology made into composite membrane.

dry type composite first process is the first substrate via network cable roller coating junior bake, blast heating drying and the second substrate by composite steel roller heating pressure after winding composite membrane. And then sent to the chamber heating curing a few days later, after cutting bag making.