Introduce PE composite membrane processing method | | food industry information packaging manufacturers
by:Kolysen
2020-12-01
PE composite membrane dry after the law is the legal adhesive by compound machine coated on the surface of base material, on the other film in a heating roller attached and complex ways.
2.
Wet the complex legal water-soluble adhesives (
Gelatin, starch)
, water dispersion adhesives (
Vinyl acetate emulsion, etc. )
Coated on the surface of the substrate wetting condition with other composite materials, and then use rolling echoed drying method.
3.
Extrusion complex legal this is the most commonly used method in composite processing, PP, PE, EVA in the extruder (
Ethylene - vinyl acetate copolymer)
Ionic resin such as extrusion film, coating glue in mixed processing agent (
Polyethylene imine, polyurethane resin, etc. )
All kinds of composite membrane, then through cooling and solidifying.
4.
Hot melt in composite material/resin mixed rosin, xylene resin and styrene resin adhesive and glued bottom reducing agent such as paraffin thermal flux coating on film, paper, aluminum foil surface, immediately composite cooling method in other base material.
5.
A total of extrusion complex legal law is made up of two or three extruder processing can take more than a second film at the same time, there are T die head and blow molding method, can perform a variety of complex, can produce super-thin membrane.
Custom message