SELF SUPPORTING PLASTIC BOTTLE WITH TEXTURED THIN WALLS

摘要

A plastic bottle, made of polyethylene (PE), polypropylene (PP), or poly(ethylene terephthalate) (PET), blown with a very thin overall wall thickness within t he range 0.1 to 0.3 mm, includes a triangular or polygonal cross-section, the bottle bein g preferably surrounded by a supporting jacket. The bottle can be blown with a uniform wa ll thickness and adequate strength without the need for reinforcing ribs via walls formed by pressing them against the surface of a blow mold which has been worked at least in some areas by etching, form-cutting or eroding, having features with heights of 0.05 to 0.15 mm.