Plastic Film Extrusion
Plastic film extrusion(blowing) machine
.Co-extruded multiple layers
.Large capabilities & Speedy
Plastic film extrusion(blowing) is a manufacturing process where raw material/plastic resin is melted down and formed into a plastic tube bubble and/or plastic film.
LDPE, HDPE and PP are the mostly used plastic materials in film blowing(extrusion), our advanced machine are able to co-extrude 3 layer film which is made of 3 different materials, even in 3 different desired color.
Our film blowing workshop is well-equipped with more than 85 extrusion machines, all of them are well maintained , in good condition, ready to take any bitter works. The plastic film are used for making plastic handle bag, shopping bag, flexible packaging and plastic packaging.
How does blown film line work?
Plastic resin is normally mixed with color pigment and other necessary additives before is fed in pellets, the material is melted down by heat generated by the barrel of extruder, and as the inner screw runs, melted plastic is forced to goes through the barrel to the die where the melted plastic material is extruded out in tube form.
The tube is inflated into a bubble by the wind from the air outlet that sits in the center of the die. The air ring, which surrounding the die, blow upward air onto the tube to cool down the film from outside of the tube. The cooled film is then pulled upward by the rotating nip rolls. The bubble is squeezed out of air by the collapsing frame and then depressed by the nip rolls.
After the film is turned flat lay, it could be is wound up in roll as tube plastic film or plastic sheet, ready for next process.