Plastic bag heat sealing performance and what factors

plastic bag heat sealing performance if the bad, will affect the storage quality of goods, plastic packaging bags for goods will not have very good protection effect. The heat sealing of plastic packaging bags and what factors?

different have different heat sealing plastic bags, packaging particle density and food plastic packaging bags, requires high heat sealing strength of plastic packaging bags; But such a light weight, fine powder material washing powder, because when packing easy dust float in the sky, insist on plastic flexible packaging materials of inclusion heat sealing is better.

when heat sealing material was determined, heat sealing quality is directly related to heat sealing process, usually is the main control of heat sealing temperature, pressure and time. Above the heat sealing temperature when heat sealing, make plastic film adhesive flow; And heat sealing pressure can make the plastic film in the viscous flow of interface between molecules produce mutual penetration, diffusion, external power; Certain heat sealing time can make the plastic film interface molecular mutual penetration, diffusion as soon as possible, make the interface disappeared and as a whole, thus has good sealing. * low thermal seal temperature of the heat sealing materials depends on the material melt temperature, heat sealing temperature should be higher than the melting temperature of the heat sealing materials, but higher than many, want to suffer by sealing material is single film or composite film, the thickness of the film, heat sealing pressure, the influence of heat sealing speed and other technical indicators. Generally, high heat sealing pressure; Heat sealing was slow; Film thickness is big, the heat sealing temperature can be lower, and vice versa.