| 摘要 |
FIELD: transport, package. ^ SUBSTANCE: invention relates to stiff or semi-stiff plastic part used to produced package base, package lateral wall being made from laminate film. Said part is centered relative to axis and comprises peripheral welding zone for contact with package side wall inner surface and for welding convex inner surface and concave outer surface to be welded thereto. Besides the part comprises zone on both inner and outer surfaces centered around said axis for contact with tool used to secure the part to package lateral wall. Part profiles is confined, at least partially, by a curve. Invention relates also to package with base produced from above described part. ^ EFFECT: package stability, mechanical strength and tightness. ^ 15 cl, 3 dwg |
