Antiblocks are materials that prevent the blocking of polymer surfaces. Blocking is a common problem in movies, especially blown movies. When the film bubble passes through the nip rolls and the two layers of film are pressed together, there is a tendency for adhesion between them. The anti-block helps the two layers not stick together and separate easily. Silica is a common antibody used.

Leave a Reply

Your email address will not be published. Required fields are marked *