Laminated sheet and packaging container sleeve

Provided are a laminated sheet for a packaging container and a packaging container sleeve that have high metallic gloss on a surface thereof, excellent conservability of contents, and are not prone tobubbling in the manufacturing process. The laminated sheet is used in the manufacture of a packaging container having a top section and a bottom surface that are formed by respectively folding and heat-sealing areas including the end sections of a tubular body, which is formed by overlapping and heat-sealing two side edges of a sheet material. The laminated sheet has a top seal section that is anarea corresponding to the top section, a bottom seal section that is an area corresponding to the bottom surface, and side surface sections that are areas sandwiched between the top seal section andthe bottom seal section. Said laminated sheet further includes, in order from the inner side of the packaging container: an inner layer film having a water vapor barrier layer and a sealant layer; a paper substrate; and a therm