Film blowing machine is heated to melt the plastic particles and then blown film.
Film blowing machine many different kinds, with PE, POF, etc..
Blow with the new particle is the new materials are said color, clean, good stretch bags.
It was also made of recycled plastic bags to particles, which are generally called the old material, made of particles is usually gray, usually in bags made to add coloring, coloring bags made of uneven, brittle and easily broken prices lower.
Although the recycling of plastic bags are the bag, but generally the process of waste bags and waste plastic in the usual sense have a lot of difference.