Analyzing the causes of high temperature aluminum bag peel strength is poor, the average person I don't tell him!

High-temperature cooking foil bags has a very wide range of applications, can replace tin head can heating effect, and low price are popular with food and the food industry, but the steps as summer approaches, plenty of rain, high temperature makes a lot of high-temperature cooking foil bags manufacturer in compound aluminum foil membrane more troubles, as small make up together to explore the reasons of the poor high-temperature cooking foil bags peel strength. Due to high temperature and high humidity in summer, the structure of production for PA1. 5 / AL0。 7 / CPP11。 5 high-temperature cooking foil bags, in PA and AL layer basic fastness, and rubber flexible, seemingly adhesion, but not sticky. Has this kind of situation the reason to roughly the following: 1, the high temperature and high humidity weather, high content of water vapor in the air, may PA layer absorption of moisture, containing water, after the glue and glue reaction, cost of curing agent. 2, with glue, the dilution solvent acetic acid ethyl ester, water, alcohol, also consumes part of curing agent, crosslinking curing rubber failed to completely. 3, nylon surface wet tension value is low, about 44, but through the PA/AL layer stripping, sub base metastases to PA layer, AL layer without glue, basically show that PA layer surface wet tension can also meet the requirements of composite. 4, the gluing quantity insufficiency ( Dry basis) , working liquid concentration is 28%, the net roller is 100 mesh, but with long time, depth of the cable is close to 120 mesh, the gluing quantity is 3. 49 grams, should guarantee the dry basis content reaches more than 4 g. 5, aluminum foil surface residual oil cause bond to drop. 6, composite, speed, compound bake, low temperature, air volume is small, the fuselage is short. Is more than six reasons of the poor high-temperature cooking foil bags peel strength, I hope you all know the boss seriously, it might be helpful for future production!