Pressure packaging with improved drop resistance and impact resistance

摘要

The invention provides a multi-layered pressure packaging comprising a first container comprising a lockable neck portion followed by a body part and a bottom part, obtained from a non-foamed thermoplastic material by stretch blow moulding, and a first layer at least enclosing the body part and/or bottom part of the first container, wherein the first layer comprises foamed material; wherein the foamed material layer is foamed in place by means of an outer enclosure applied over and around the first container defining a free space in between, and foamable material was introduced and foamed between the first container and the outer enclosure in said free space, thus obtaining said foamed material layer, wherein a second layer is applied on the outer surface of the foamed layer for keeping the foamed layer and the first container together. The invention also provides methods for manufacturing a multi-layered pressure packaging according to an embodiment of the invention.