Tohoku University

Daio Paper Corporation

Hitachi Metals, Ltd.

Daio Paper Corpporation

Kei Shibata

Kazuo Hokkirigawa

Takeshi Yamaguchi

Shuta Yasui

Hidenori Yorozu

Sachiko Takahashi

Norimitsu Hirata

Atsuko Hasezawa

Kei Takahashi

Wataru Tanabe

Shohei Matsumura

Osamu Murakami

Mika Hayashi

Risa Nakane

Naoya Yamai

To provide tissue paper excellent in softness and smoothness. In tissue paper that is two-ply non-moisturizing tissue paper to which no chemical solution is applied, a basis weight per sheet is 10.0 to 18.0 g/m, the thickness of two plies is 100 to 240 &#x3bc;m, a dry tensile strength in the paper horizontal direction is 70 to 180 cN/25 mm, a wet tensile strength in the paper horizontal direction is 25 to 55 cN/25 mm, and a free sensory evaluation value Ecalculated according to the following Equation 1 is 3.7 to 6.6, and a slip sensory evaluation value Ecalculated according to the following Equation 2 is 5.0 to 8.2.Free sensory evaluation value=&#x2212;2.879&#xd7;(dry tensile strength in paper horizontal direction)+6.55&#xd7;(wet tensile strength in paper horizontal direction)+5.36&#x2003;&#x2003;(Equation 1)Slip sensory evaluation value=&#x2212;8.80&#xd7;(dynamic friction coefficient)&#x2212;0.41&#xd7;(arithmetic mean surface roughness)+13.58&#x2003;&#x2003;(Equation 2)

Tissue paper and method of evaluating the same

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 &#x3bc;m, 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&#xb7;cm/cm in CD (cross direction) and a bending recovery force of less than 0.005 gf&#xb7;cm/cm in CD.

Tissue paper

An all-purpose type tissue paper. A two-ply tissue paper that does not have moisturizer applied thereon, that has a basis weight per ply of 10.0-16.0 g/m2, a paper thickness per two-ply of 120-200 &#x3bc;m, a softness of not more than 1.0, a dry tensile strength (T) in the MD direction of 240-300 cN/25 mm, and an average dynamic friction coefficient of 1.40-1.65.

An elastic composite material containing a base polymer of a simple substance or a mixture of rubber or thermoplastic elastomer as a base material, and a hard porous carbon material containing carbide of defatted bran and carbide of phenolic resin. The hard porous carbon material is added in a ratio of 200 parts or more by weight relative to 100 parts by weight of the base polymer.

Elastic composite material and mold product using the same

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Sendai, Japan

Kei Shibata