# US 2018/0023255 A1 · Tissue paper

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- Number: US 2018/0023255 A1
- Document ID: US20180023255A1
- Status: Published application
- Kind: A1
- Application number: 15/549,885
- Filed: 2016-03-15
- Published: 2018-01-25
- Earliest claimed: 2015-03-31
- Assignees: Daio Paper Corporation
- Applicants: Daio Paper Corporation
- Inventors: Shuta YASUI
- Web page: https://patentgrep.com/patent/US20180023255A1

## CPC

- D21H 27/008: {characterised by inhomogeneous distribution or incomplete coverage of properties, e.g. obtained by using materials of chemical compounds (D21H23/02, D21H23/76, D21H27/02 take precedence)}
- A47K 7/00: Body washing or cleaning implements
- A47K 10/16: Paper towels; Toilet paper; Holders therefor
- A61K 8/0208: {Tissues; Wipes; Patches}
- A61K 8/37: Esters of carboxylic acids
- D21H 17/06: Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
- D21H 27/00: Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H 27/002: {Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00)}
- D21H 27/30: Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00)
- D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- A47K: SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)

## Abstract

To provide tissue paper with an excellent “moist texture” and high “smooth texture.” 2-ply tissue paper is characterized by the basis weight per ply being 15 to 18 g/m2, the 2-ply paper thickness being 135 to 160 μm, and containing 2.9 g/m2 or more and 8.0 g/m2 or less of chemical agent which contains glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more, wherein the mass ratio of glycerin and 1,3-propanediol is 1:0.04 or more and 1:5.58 or less.

## Claims

### Claim 1

2-ply tissue paper, wherein
a basis weight per ply is 15 to 18 g/m2,
the 2-ply paper thickness is 135 to 160 μm, and the 2-ply tissue paper containing
2.9 g/m2 or more and 8.0 g/m2 or less of chemical agent which contains glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more, wherein the blending ratio of glycerin and 1,3-propanediol (the blending ratio of 1,3-propanediol to 1 glycerin) is above 1:0.04 and 1:5.58 or less.

### Claim 2

The 2-ply tissue paper, wherein
a basis weight per ply is 16.2 g/m2 or more and 17.4 g/m2 or less,
the 2-ply paper thickness is 136 μm or more and 156 μm or less, and the 2-ply tissue paper containing
2.9 g/m2 or more and 8.0 g/m2 or less of chemical agent which contains glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more, wherein the blending ratio of glycerin and 1,3-propanediol (the blending ratio of 1,3-propanediol to 1 glycerin) is above 1:0.04 and 1:5.58 or less.

### Claim 3 (depends on 1)

The 2-ply tissue paper according to claim 1, wherein
the 2-ply dry tensile strength in the CD direction is 51 cN/25 mm or more and 62 cN/25 mm or less,
the 2-ply wet tensile strength in the CD direction is 39 cN/25 mm or more and 58 cN/25 mm or less, and
the ratio of the 2-ply wet tensile strength in the CD direction to the 2-ply dry tensile strength in the CD direction is 0.68 or more.