The processing technology of PVC calendering film?
First of all, ST300 smooth powder to solve the PVC colored film industry generally exist ink adhesion, yellowing, transparency and other issues, such as advertising films, crystal films, sheets, packaging film, etc..
Secondly, PVC calendering films are made by rolling process.Calender is heated by PVC plastic roller clearance level rotation of one or more pairs of opposite, so that the material under compression, extension, and a process with a certain thickness, width and surface smooth thin products.
Characterized by high yield and good quality. But the process equipment is complex, and the investment is large. Soft rolled film thickness generally below 0.25mm, formulations plasticizer content greater than 25phr. PVC calendered film occupies an important position in the plastic film, the cover, Yantian industrial packaging, electrical insulation, pneumatic products, advertising light boxes, waterproofing, commodity packaging, etc. have a wide range of applications.
