The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2022
Filed:
Jun. 03, 2019
Daio Paper Corporation, Shikokuchuo, JP;
Tohoku University, Sendai, JP;
Sachiko Takahashi, Fujinomiya, JP;
Kazuo Hokkirigawa, Sendai, JP;
Takeshi Yamaguchi, Sendai, JP;
Kei Shibata, Sendai, JP;
DAIO PAPER CORPORATION, Ehime, JP;
TOHOKU UNIVERSITY, Miyagi, JP;
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/m, 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.