| 摘要 |
PURPOSE:To obtain the heat sealing fiber cover of a sealing package vessel excellent in sealing property and easily opened by providing the heat sensitive adhesive layer containing the specified amount of heat sensitive adhesive resin containing partially saponified material of the copolymer of ethylene-vinyl acetate or its acid modified material as its main component and the specified amount of rosin on one surface of a metallic foil. CONSTITUTION:In the heat sealing fiber cover of a sealing package vessel, the heat sensitive adhesive layer 2 containing the heat sensitive adhesive resin of 55-99 pts.wt. containing partially saponified material of the copolymer of ethylene-vinyl acetate or its acid modified material as its main component and the rosin group of 1-45 pts.wt., is provided on one surface of a metallic foil. As said metallic foil, an aluminum foil is normally used, but the foil of other metal may be also used. When the aluminum foil is used, its thickness is 5-200mum, and preferably is 20-60mum. When the metallic foil is used as the base of heat sealing fiber material, its barrier property is excellent, and the storage of the content such as dessert or cooked food, etc., may be effectively achieved for long time. |
