| 摘要 |
Preform for producing containers ( 90 ) comprising a neck section ( 8 ), a wall section ( 6 ) and a bottom section ( 7 ), which is composed of a multi-layer structure comprising three layers, the one of which ( 1 ) is directed inwardly respective the preform and is composed of a primary material (PM) thereby forming a primary basis layer ( 1 ). Said primary material consists of a synthetic material. A further layer ( 3 ) is directed outwardly with respect to said primary layer ( 1 ), in such a way that it forms the outer surface layer ( 3 ) of the preform, thereby consisting of a tertiary material (TM) forming a tertiary surface layer ( 3 ). Said tertiary layer is composed of a further synthetic material. Said preform is remarkable in that an intermediate layer ( 2 ) is provided between the primary and tertiary layers ( 1, 3 ) which is composed of a secondary material (SM) consisting of a fluid. Process and device for manufacturing said preform.
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