Patent ID: 6959832

Claim:
A lid member for a food container having a layered structure in which a surface sheet is laid on a composite sheet, the lid member comprises: an easily-peelable area comprising an easily-peelable layer made by applying a lubricant between the surface sheet and the composite sheet, an opening area placed within the easily-peelable area to form apertures therein, and a non-peelable area placed adjacent to the easily-peelable area, and a first slit which cuts the composite sheet vertical-sectionally and forms the apertures in the opening area, and a second slit which cuts the surface sheet vertical-sectionally and is laid along the boundary line between the easily-peelable area and the non-peelable area, and the lid member is further characterized in that the surface sheet is adhered to the composite sheet at the opening area without the lubricant through an area which is smaller than the apertures formed within the composite sheet, and said easily-peelable layer is formed by applying the lubricant in the form of a pattern.