Polyvel Inc. has debuted an anti-fog concentrate for polyolefin food packaging.
Polyvel says VF152 is a second-generation anti-fog masterbatch specifically aimed at blown low density polyethylene film for refrigerated fresh food. It works more quickly than previous versions in monolayer and coextruded films. It also cuts down on condensation more efficiently, giving a more transparent film. The Hammondton, N.J., firm recommends a letdown ratio of about 2-3 percent.
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