| 摘要 |
FIELD: packing and sealing. ^ SUBSTANCE: invention relates to plastic cap with gasket for sealing plastic bottles. Proposed cap contains shirt, upper part, connecting area between skirt and upper part, protective ring and gasket. Gasket is secured on upper part by welding of contact surfaces between upper part and gasket. Gasket passes from inner side of upper part of cap over its radius to leave part of connecting area open. ^ EFFECT: improved sealing of bottles. ^ 10 cl, 3 dwg |
