Tissue paper

Patent metadata

Field	Value
Publication number	US-10618261-B2
Application number	US-201615763392-A
Country	US
Kind code	B2
Filing date	Aug 4, 2016
Priority date	Sep 28, 2015
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

[Problem] To provide tissue paper excellent in “moistness” and “smoothness”. [Solution] The problem can be solved by tissue paper being two-ply tissue paper, in which a basis weight per one ply is greater than 12.9 g/m 2 and less than 16.8 g/m 2 , a paper thickness in the two-ply state is not less than 128 μm nor more than 150 μm, and a chemical agent containing glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more and having a mass ratio between glycerin and 1,3-propanediol of greater than 1:0.14 and less than 1:6.64, is contained in an amount of greater than 2.3 g/m 2 and less than 6.1 g/m 2 .

First claim

What is claimed is:

1. A two-ply tissue paper, wherein:
a basis weight per one ply of said two-ply tissue paper is greater than 12.9 g/m 2 and less than 16.8 g/m 2 ;
said two-ply tissue paper has a paper thickness of not less than 128 μm nor more than 150 μm; and
said two-ply tissue paper comprises a chemical agent containing glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more and having a mass ratio of glycerin to 1,3-propanediol of greater than 1:0.14 and less than 1:6.64, wherein said chemical agent is contained in said two-ply tissue paper in an amount greater than 2.3 g/m 2 and less than 6.1 g/m 2 .

2. A two-ply tissue paper, wherein:
a basis weight per one-ply of said two-ply tissue paper is not less than 13.5 g/m 2 nor more than 16.1 g/m 2 ;
said two-ply tissue paper has a paper thickness is of not less than 128 μm nor more than 150 μm; and
said two-ply tissue paper comprises a chemical agent containing glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more and having a mass ratio of glycerin to 1,3-propanediol of greater than 1:0.14 and less than 1:6.64, wherein said chemical agent is contained in said two-ply tissue paper in an amount greater than 2.3 g/m 2 and less than 6.1 g/m 2 .

3. The two-ply tissue paper according to claim 1 , wherein:
said two-ply tissue paper has a dry tensile strength in a cross direction (CD) of greater than 63 cN/25 mm and equal to or less than 133 cN/25 mm;
said two-ply tissue paper has a wet tensile strength in the CD of greater than 39 cN/25 mm and equal to or less than 59 cN/25 mm; and
a ratio of the wet tensile strength in the CD to the dry tensile strength in the CD is 0.30 or more.

4. The two-ply tissue paper according to claim 2 , wherein:
said two-ply tissue paper has a dry tensile strength in a cross direction (CD) of greater than 63 cN/25 mm and equal to or less than 133 cN/25 mm;
said two-ply tissue paper has a wet tensile strength in the CD of greater than 39 cN/25 mm and equal to or less than 59 cN/25 mm; and
a ratio of the wet tensile strength in the CD to the dry tensile strength in the CD is 0.30 or more.

Assignees

• Daio Seishi Kk

Inventors

• Yasui Shuta

Classifications

• A47K10/16 Primary

  Paper towels; Toilet paper; Holders therefor · CPC title

• B32B2255/12

  on paper layer · CPC title

• B32B2307/54

  Yield strength; Tensile strength · CPC title

• D21H21/22

  Agents rendering paper porous, absorbent or bulky · CPC title

• D21H19/12

  applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds · CPC title