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US 11,686,046 B2Granted
Tissue paper
AssigneeDaio Paper Corporation
InventorsShuta Yasui, Minoru Iwasaki
Life of this patent
Estimating the term…
Abstract
Provided is a moisturized tissue excellent in strength and snot wiping property. In the moisturized tissue paper, a paper thickness is 220 to 330 μm, a basis weight is 15 to 18 g/m2 per ply, a proportion of NBKP in the pulp combination is more than 70 mass %, a chemical solution content is 26 to 32 mass %, an arithmetic mean curvature at a peak point of an outer surface in an unpressurized state (Spc (1)) is 4.0 to 4.8 (1/mm), and a developed area ratio at an interface on the outer surface (Sdr) is 0.020 to 0.030 (−).
Claims2
Moisturized multi-ply tissue paper sheet, comprising:
- a plurality of tissue paper plies, where each tissue paper ply of the plurality of tissue paper plies includes fibers, where 98 mass % or more of said fibers are pulp fibers, where more than 70 mass % of said pulp fibers are softwood kraft pulp fibers;
- and
- 26.0 to 30.0 mass % polyol, based on the total weight of the tissue paper sheet,
- wherein the tissue paper sheet has a thickness of 220 to 330 μm, and each ply of the plurality of tissue paper plies has a basis weight of 15 to 18 g/m2 per ply,
- wherein an arithmetic mean curvature at a peak point of an outer surface in an unpressurized state (Spc (1)) is 4.0 to 4.8 (1/mm) of the tissue paper sheet, and
- a developed area ratio at an interface on the outer surface (Sdr) of the tissue paper sheet is 0.020 to 0.030 (−).
3 more elements
Dependencies are inferred from the claim text.