| 摘要 |
An improved opening means for plastic tubular containers in the form of score lines that will minimize the exposed sharp edge at the fracture surface and retain the separated sections of the plastic tube together. The opening means comprises of one or more sections of score lines in the form of arcs around the circumference of a plastic tube. None of the score lines are formed around the entire circumference of the plastic tube. Each score line terminates at a rounded terminal at each end of the arc to eliminate tension concentration and limit propagation of the fracture upon bending of the plastic tube at the score lines.
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