Polyvinyl chloride film having specific properties, and a...

Details Polyvinyl chloride film having specific properties, and a... Polyvinyl chloride film having specific properties, and a...

B - Operations, Transporting

29

C

18/1043

B29C 43/24 (2006.01)

Patent

CA 1183316

Abstract of the disclosure: A stretched and delustered film is described which is essentially comprised of vinyl chloride polymers and which has a specific roughness, a specific luster value, a high heat shrinkage in transverse direction and a relatively low heat shrinkage in longitudinal direction and retains the delustered surface texture even on heat- ing up to 140°C. The new film is manufactured by calender- ing a molding composition essentially comprised of vinyl chloride polymers, and by delustering and transversely stretching the film, the calendering,delustering and trans- verse stretching being carried out in the order indicated and while maintaining certain process conditions. The new film is particularly suitable for skin packaging purposes.

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