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US 12,366,037 B2Granted
Water dispersible sheet and method to manufacture water dispersible sheet
AssigneeDaio Paper Corporation
InventorKaori Kanamaru
Life of this patent
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Abstract
A water dispersible sheet includes a base paper sheet including a water dispersible fiber aggregate. The base paper sheet is impregnated with a chemical solution. The fiber aggregate includes 50% by mass to 70% by mass of NBKP. The water dispersible sheet includes a longitudinal/transverse strength ratio of 0.9 to 1.2. Emboss is formed on the water dispersible sheet.
Claims5
A multi-ply water dispersible sheet comprising:
- a base paper sheet including a water dispersible fiber aggregate and a water-soluble binder, wherein the base paper sheet is impregnated with a chemical solution comprising a cross-linking agent,
- wherein the fiber aggregate includes 50% by mass to 70% by mass of NBKP,
- wherein the water dispersible sheet includes a longitudinal/transverse strength ratio of 0.9 to 1.2, and
- wherein emboss is formed on the water dispersible sheet;
- wherein the base paper sheet has an arrangement of fibers such that, when dry and in the absence of the emboss, the base paper sheet longitudinal/transverse strength ratio would be 0.6 to 0.8.
2 more elements
Dependencies are inferred from the claim text.