| 摘要 |
Preforms ( 90 ) from which bottles can be blown are disclosed. Each disclosed preform has a body, a flange ( 92 ) encircling the body and a band ( 94 ) protruding from the body. The flange ( 92 ), the band ( 94 ) and the part of the body above the flange ( 92 ) define a trough ( 106 ). When a cap ( 102 ) is fitted, the ring ( 112 ) is joined to the remainder of the cap's skirt along a weakened line ( 108 ), as well as the weakened line and the adjacent part of the remainder of the skirt ( 104 ), enter the trough. The band ( 94 ) can be heat shrunk onto the ring ( 112 ). |
