| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for evaluating the strength of a container that can be sealed without generating a stress crack phenomenon in the tube container for accommodating contents having high stress crack properties, to provide a tube container structure containing the tube container by the evaluation method or a material, especially to provide the evaluation of sealing strength suited for sealing by a hot air seal method and the tube container by the evaluation, and to provide a resin material for the tube container suited for sealing by the hot air seal method without generating a stress crack phenomenon in the tube container for accommodating the contents having high stress crack properties and the tube container containing the resin material. SOLUTION: Crack-testing liquid with silicon as a main constituent is filled for leaving at a required temperature, and time until cracks is evaluated by a geometrical average value due to logarithms in the method for evaluating the crack resistance of the tube container.
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