| 摘要 |
PROBLEM TO BE SOLVED: To control the change with time of seal strength or sealing properties and prevent the change of quality of a content due to the elapse of a long period of time and improve the easy peeling properties at the time of unsealing for an inner seal material used suitably as a cover for a container for foods, medicines, cosmetics and the like, particularly as a cover for a glass bottle container. SOLUTION: In an inner seal material for closing a container mouth sealing formed of a reseal layer 9 remaining inside of a cap and a seal layer 10 to be coated are laminated together on a container mouth section as a cover, the seal layer 10 is provided with a metal foil 5, a glassine paper 7 stuck on the back of the metal foil 5 and a hot melt bonding agent layer 8 provided on the back of the glassine paper 7 by the gravure roll coating. Preferably the metal foil 5 is laminated with the glassine a paper 7 through a polyethylene layer 6. A PET (polyethylene terephthalate resin) film can be used in place of the gravure paper. |
