Tissue paper
AssigneesDaio Paper Corporation, Tohoku University
InventorsSachiko Takahashi, Kazuo Hokkirigawa, Takeshi Yamaguchi, Kei Shibata
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Abstract
The present invention is directed to a non-moisturizing high-grade type tissue paper having excellent softness wherein the polyol applied to the two-ply tissue paper is not applied by external addition. In various embodiments, the tissue paper has a basis weight per ply of 14.0 to 17.0 g/m2, a paper thickness for two plies of 160 to 220 μm, and a water content of 4.0 to 9.0% by mass, contains 0.15 to 0.45% by mass of an oily component to be extracted with diethyl ether, and has a bending rigidity of less than 0.006 gf·cm/cm in CD (cross direction) and a bending recovery force of less than 0.005 gf·cm/cm in CD.
Claims7
A two-ply tissue paper to which a polyol is not applied by external addition, wherein
- the tissue paper has
- a basis weight per ply of 14.0 to 17.0 g/m2,
- a paper thickness for two plies of 160 to 220 μm, and
- a water content of 4.0 to 9.0% by mass,
- contains a nonionic surfactant and a cationic surfactant as softening agents, said cationic surfactant comprising a quaternary ammonium salt, an amine salt, an amine, or a combination thereof,
- contains 0.15 to 0.45% by mass of an oily component extractable with diethyl ether,
- has a bending rigidity of less than 0.006 gf·cm/cm in CD (cross direction) and a bending recovery force of less than 0.005 gf·cm/cm in CD,
- has a dry tensile strength of 200 to 350 cN in MD (machine direction), and
- has a dry tensile strength of 60 to 80 cN in CD.
Dependencies are inferred from the claim text.