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US 11,363,917 B2Granted
Toilet paper
AssigneeDaio Paper Corporation
InventorsShohei Yoshida, Shinichi Warashina
Life of this patent
Estimating the term…
Abstract
Toilet paper includes a first sheet on which first embossments are formed and a second sheet on which second embossments are formed. The first sheet and the second sheet are joined together in a nested manner, and at least some embossments in one of the first embossments and the second embossments are arranged on a first curve having a sine-wave shape.
Claims12
Toilet paper, comprising:
- a first sheet on which first embossments are formed, the first sheet including a first inner surface and a first outer surface;
- a second sheet on which second embossments are formed, the second sheet including a second inner surface and a second outer surface, and the first sheet and the second sheet being laminated integrally in a nested manner in which the first inner surface of the first sheet and the second inner surface of the second sheet face each other, wherein
- at least some embossments in the first embossments are arranged on a first curve having a sine-wave shape;
- at least some embossments in the second embossments are arranged on a second curve having a sine-wave shape, the second curve being different from the first curve and parallel to the first curve;
- at least some embossments in one of the first embossments and the second embossments are arranged on a third curve having a sine-wave shape, the third curve intersecting the first curve and extending from one lateral end to another lateral end of the toilet paper;
- each first embossment arranged on the first curve and on the third curve protrudes toward the second inner surface of the second sheet;
- and
- each second embossment arranged on the second curve and on the third curve protrudes toward the first inner surface of the first sheet.
5 more elements
The toilet paper as claimed in claim wherein 1, wherein a period of the sine-wave shape is between 50 mm and 300 mm.
Dependencies are inferred from the claim text.