Polypropylene (PP), also known as polypropylene, is a thermoplastic polymer used in a wide variety of applications such as office and school filing products, such as file folders, pocket files, expanding files, ring binders, notebooks, zip bags…etc.It is one of environmental materials, non-toxic, colorless, tasteless and recyclable, Plastic extrusion is the process where plastic materials are converted from solid to liquid and then it is reconstituted into finished products. In other words, plastic is melted down and then reshaped into useful items.
Polyvinylchloride (PVC) [-(-CH₂ °-CHCl-)n-] is one of the three most important polymers currently used worldwide. This is because PVC is one of the cheapest polymers to make and has a large range of properties so can be used to make hundreds of productsLeos' commonly use soft and rigid PVC sheet for making file pockets, zip bags, mesh bags for document Storage, personal use, school students study, display and organization.
PP Foam is more durable than other plastic materials, no harmful to environment like PVC material caused, not as heavy and stiff as metal product, no moisture absorbing problem like paper material. 35% lighter than common PP product can save 25% to 35% material.The rigid PP Foam sheet is widely used on many office and school stationery products such as document case, desk organizer, pen holder, magazine file, clipboards, expanding files, carry case…etc. Customized OEM ideas are all welcomed.