| 摘要 |
PURPOSE:To reliably prevent aroma, etc., from dispersing through a break line by layering a non-permeable laminate sheet on the top wall portion upper surface surrounded by an extraction cylinder and the lower and the outer surface of a connecting flap so as to be formed in one body. CONSTITUTION:The center area of a top wall 2 portion surrounded by an extraction cylinder 5 is surrounded by a break line 8 and taken as an eliminating board portion 9, and a cap with a synthetic resin pull ring, provided with a pull ring 11 on the upper end of a connecting flap 10 rising upward from one part of the peripheral edge of the eliminating board portion 9 is formed. And the nonpermeable laminate sheet 21 is layered on the upper surface of the top wall 2 portion surrounded by the extraction cylinder 5 and the lower part outer surface of the connecting flap by insert forming so as to be formed in one body. Therefore, there is no possibility that the laminate sheet 21 is partially corroded by touching a container body liquid, and aroma, etc., is not dispersed through the break line 8, moreover the laminate sheet on the lower part outer surface prevents aroma dispersion from the break line 8 even if the dispersion can not be prevented by only the laminate sheet on the top wall surface. |
