| 摘要 |
PROBLEM TO BE SOLVED: To provide an adiabatic paper cup which is simply structured, is superior in adiabatic characteristics, in hygienic characteristics and in disposability. SOLUTION: This paper cup has a body part made of an inner peripheral wall 1 and an outer peripheral wall 2 formed by double winding a fan shape blank panel. A bottom panel 8 is mounted at the bottom end of the inner peripheral wall 1, and an outward curl part 7 is formed at the top end for forming an inverted truncated cone shape paper cup. At least on the inner peripheral wall 1, a plurality of protruding embosses 3 are formed for forming a gap 6 between the inner peripheral wall 1 and the outer peripheral wall 2.
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