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Polystyrene heat-sealable film

Because of the excellent gas barrier properties, EVOH is of interest as a packaging material. However, because of its high water absorption it is usually used as an internal layer in a co-extruded film, sheet, bottle or tube. For example, the system HDPE-EVOH-EVA may be used as a barrier film for packaging cereals, and the system polystyrene-EVOH-polystyrene for packaging coffee and cream, whilst the system polystyrene-EVOH-polyethylene has the additional advantage of heat sealability. [Pg.395]

See other pages where Polystyrene heat-sealable film is mentioned: [Pg.470]    [Pg.65]    [Pg.470]    [Pg.12]    [Pg.1075]    [Pg.470]    [Pg.113]    [Pg.280]   
See also in sourсe #XX -- [ Pg.65 ]



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Heat sealability

Polystyrene films

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