| 摘要 |
PROBLEM TO BE SOLVED: To provide a lid material of a press-through pack having the child resistance function capable of eliminating the problem of erroneous drinking of a baby, while holding easiness of an opening characteristic when taking out the content such as a medicine.SOLUTION: In a lid material 1 of a press-through pack having a heat adhesive layer to be adhered to a resin film, aluminum foil and a container, the resin film is a polyethylene terephthalate film, and when a film surface is thrust at a speed of 10 mm/min by a flat circular punch 4 having the tip of a diameter of 1.8 mm, a moving distance of the punch until the lid material ruptures, is 0.4 mm or more and less than 0.8 mm.SELECTED DRAWING: Figure 1 |
