Straw and manufacturing method of straw

Abstract

A manufacturing method of a straw includes: overlapping a first sheet material in which a plurality of straight linear crest portions and straight trough portions are alternately arranged and a second sheet material facing the first on the crest portion side; forming a closed space between the trough portion and the second sheet material by joining the first and second sheet materials at the crest portion of the first sheet material; and a plurality of straws are obtained by cutting a joined part. A straw obtained by the method includes: a first member having a linear recessed portion and flange portions positioned on both sides of the linear recessed portion and extending along the linear recessed portion; and a sheet-like second member facing the first member, in which the first member and the second member are joined at the flange portion of the first member.

Dependencies are inferred from the claim text.