PP film blowing machine is a plastic film production ma […]
PP film blowing machine is a plastic film production machine used to manufacture a variety of films. These films can be used for food packaging, general packaging, carrier bags, silage sheeting, and even greenhouse films. These films can be made of several different kinds of plastics and resins. These films can also be mixed with different functional materials to produce different types of films.
Polypropylene is one of the most commonly used plastics for blown films. This film is used in the packaging industry worldwide. This plastic is a thermoplastic which is made from a combination of propylene monomers. Polypropylene is a very versatile resin which can be used in a variety of different applications.
Blow film extrusion is an established process for creating simple monolayer films for bags, and complex multilayer structures for food packaging. The process uses a molten thermoplastic tube, which is constantly inflated to several times its initial diameter. Once the tube has reached the desired thickness, it is cooled to solidify the polymer. The film is then stretched with air to produce a thick, tubular product.
PP film blowing machines can produce a wide range of films, from 0.5mm to 20mm in thickness. The thickness of a film can be controlled by varying the amount of air in the bubble. The film bubble is one of the most important limits to the output of a blown film. Variations around the bubble can limit the film's thickness by up to 10%. This is why it is important to have a stable bubble to control the rate of product qualification.