Lid of container and container for instant foods using the same.

摘要

A lid (1) which is to be heat-sealed on a container, comprising a laminated sheet (6) composed of a base layer (2), an adhesive layer (3), a metallic layer (4), and a heat-sealable resin layer (5), in which the base layer (2) comprises a single layer of a stretched resin film (2a) having many microvoids (8) or a laminate containing at least the stretched resin film (2a), the lid (1) having an indication of the direction of stripping, including a lug provided at the periphery thereof or a print (14) thereon, in such a manner that the indicated direction of stripping should be set within a range of +/-45 DEG with respect to the direction of greatest thermal expansion coefficient of the base layer (2) when heated from 30 DEG C up to 80 DEG C at a rate of temperature rise of 10 DEG C/min for 5 minutes. When hot water is poured into a container with the lid (1) partly stripped, the lid (1) is heated by the steam to close the container without assistance.