Käsittelyaineita
Käsittelyaineita, also known as processing aids, are substances added to plastics during manufacturing to improve their processing characteristics. They are not intended to remain in the final product in significant amounts or to impart permanent properties. Their primary function is to facilitate the transformation of raw plastic resin into a desired shape, such as films, molded parts, or fibers.
Common types of käsittelyaineita include lubricants, plasticizers, mold release agents, and flow enhancers. Lubricants reduce friction
These additives are typically used in very small quantities, often less than one percent by weight of