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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Double Bubble Tubular Film Extrusion
verfasst von : Toshitaka Kanai
Erschienen in: Film Processing Advances
Verlag: Carl Hanser Verlag GmbH & Co. KG
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The double bubble tubular film process is a more economical way of producing biaxially oriented film when compared to the tenter biaxially oriented film process. This film manufacturing technique has been widely used to produce biaxially oriented films because of good shrinkability and excellent physical properties. For these reasons, double bubble tubular film (DBTF) is used as the shrink film for foods, PET bottles, electrical parts, and package film for retort foods.