# US 11,027,516 B2 · Body wiping sheet

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- Number: US 11,027,516 B2
- Document ID: US11027516B2
- Status: Granted
- Kind: B2
- Application number: 16/099,543
- Filed: 2017-06-28
- Published: 2019-07-04
- Granted: 2021-06-08
- Earliest claimed: 2016-06-29
- Assignees: Oji Holdings Corporation
- Applicants: Oji Holdings Corporation
- Inventors: Mizue Takagi; Asami Kawaguchi; Ayako Takahashi
- Web page: https://patentgrep.com/patent/US11027516B2

## CPC

- A47K 10/16: Paper towels; Toilet paper; Holders therefor
- B32B 5/022: {Non-woven fabric}
- B32B 3/08: characterised by added members at particular parts {(layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18)}
- B32B 3/263: {characterised by a layer having non-uniform thickness}
- B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12}
- B32B 5/06: characterised by a fibrous {or filamentary} layer {mechanically connected, e.g. by needling} to another layer, e.g. of fibres, of paper
- B32B 5/08: the fibres or filaments of a layer being of different substances {, e.g. conjugate fibres, mixture of different fibres}
- B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/12: next to a fibrous or filamentary layer
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 2250/03: 3 layers
- B32B 2250/20: All layers being fibrous or filamentary
- B32B 2262/0238: Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
- B32B 2262/0246: Acrylic resin fibres
- B32B 2262/0253: Polyolefin fibres
- B32B 2262/0261: Polyamide fibres
- B32B 2262/0284: Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
- B32B 2262/04: Cellulosic plastic fibres, e.g. rayon
- B32B 2262/062: Cellulose fibres, e.g. cotton
- B32B 2262/08: Animal fibres, e.g. hair, wool, silk
- B32B 2262/12: Conjugate fibres, e.g. core/sheath or side-by-side
- B32B 2307/718: Weight, e.g. weight per square meter
- B32B 2307/726: Permeability to liquids, absorption
- B32B 2307/728: Hydrophilic
- B32B 2555/00: Personal care
- Y10T 428/24777: Edge feature
- A47K: SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A body wiping sheet (1) comprising two surface layers (2, 3) each comprising a non-woven fabric, and a water-absorbent polymer layer that contains a water-absorbent polymer and that is disposed between the two surface layers (2, 3) in a stacked manner.

## Claims

### Claim 1

A body wiping sheet comprising:
two surface layers each comprising a non-woven fabric; and
a water-absorbent polymer layer that contains a water-absorbent polymer and that is disposed between the two surface layers in a stacked manner;
wherein the body wiping sheet is a dr sheet that does not contain an aqueous cleaning agent.

### Claim 2 (depends on 1)

The body wiping sheet according to claim 1, wherein the water-absorbent polymer layer is a sheet containing a water-absorbent polymer incorporated into a fibrous material, a sheet containing a water-absorbent polymer dispersed and solidified on a fibrous material, or a sheet containing a water-absorbent polymer processed into a fibrous structure.

### Claim 3 (depends on 1)

The body wiping sheet according to claim 1, wherein the water-absorbent polymer layer contains the water-absorbent polymer in an amount capable of maintaining the temperature of the body wiping sheet at 30° C. or higher after the body wiping sheet is immersed in water for a duration of time to sufficiently swell the polymer, heated to 60° C., and then stored for 10 minutes in an environment at 20 to 25° C. at a humidity of 40 to 80%.

### Claim 4 (depends on 1)

The body wiping sheet according to claim 1, wherein the surface layers and the water-absorbent polymer layer are fixed at least at one point.

### Claim 5 (depends on 4)

The body wiping sheet according to claim 4, wherein the at least one fixing portion is substantially linear.

### Claim 6 (depends on 5)

The body wiping sheet according to claim 5, wherein the at least one substantially linear fixing portion extends from one end to the other end of the body wiping sheet.

### Claim 7 (depends on 4)

The body wiping sheet according to claim 4, wherein the body wiping sheet is substantially rectangular, and wherein the at least one fixing portion comprises two substantially linear fixing portions at least in one direction.

### Claim 8 (depends on 4)

The body wiping sheet according to claim 4, wherein the at least one fixing portion comprises two substantially linear fixing portions that are provided at both ends of the body wiping sheet and that are formed simultaneously when the two surface layers are joined to each other.

### Claim 9 (depends on 4)

The body wiping sheet according to claim 4, wherein the at least one fixing portion is a joined portion obtained by heat sealing.

### Claim 10 (depends on 1)

The body wiping sheet according to claim 1, wherein the water-absorbent polymer layer is separated into two portions by a depressed portion that extends substantially linearly in the longitudinal direction at the center of the width direction of the body wiping sheet.

### Claim 11 (depends on 1)

The body wiping sheet according to claim 1, wherein the body wiping sheet is substantially rectangular and further has two guiding lines extending along imaginary lines that extend apart from each other in the longitudinal direction of the body wiping sheet between a long side of the body wiping sheet and positions each located at the same distance from the center of the longitudinal direction of the body wiping sheet in the line extending in the longitudinal direction of the body wiping sheet at the center of the width direction of the body wiping sheet.

### Claim 12 (depends on 1)

The body wiping sheet according to claim 1, wherein the body wiping sheet further comprises a small piece that is attached to a corner of one of the two surface layers and that defines a pocket for accommodating the body wiping sheet between the piece and one of the surface layers.

### Claim 13

A body wiping sheet comprising:
two surface layers each comprising a non-woven fabric; and
a water-absorbent polymer layer that contains a water-absorbent polymer and that is disposed between the two surface layers in a stacked manner;
wherein the body wiping contains water and does not contain an aqueous cleaning age.

### Claim 14 (depends on 13)

The body wiping sheet according to claim 13, wherein the water-absorbent polymer layer is a sheet containing a water-absorbent polymer incorporated into a fibrous material, a sheet containing a water-absorbent polymer dispersed and solidified on a fibrous material, or a sheet containing a water-absorbent polymer processed into a fibrous structure.

### Claim 15 (depends on 13)

The body wiping sheet according to claim 13, wherein the water-absorbent polymer layer contains the water-absorbent polymer in an amount capable of maintaining the temperature of the body wiping sheet at 30° C. or higher after the body wiping sheet is immersed in water for a duration of time to sufficiently swell the polymer, heated to 60° C., and then stored for 10 minutes in an environment at 20 to 25° C. at a humidity of 40 to 80%.

### Claim 16 (depends on 13)

The body wiping sheet according to claim 13, wherein the surface layers and the water-absorbent polymer layer are fixed at least at one point.

### Claim 17 (depends on 13)

The body wiping sheet according to claim 13, wherein the t least one fixing portion is substantially.

### Claim 18 (depends on 13)

The body wiping sheet according to claim 13, wherein the water-absorbent polymer layer is separated into two portions by a depressed portion that extends substantially linearly in the longitudinal direction at the center of the width direction of the body wiping sheet.

### Claim 19 (depends on 13)

The body wiping sheet according to claim 13, wherein the body wiping sheet further comprises a small piece that is attached to a corner of one of the two surface layers and that defines a pocket for accommodating the body wiping sheet between the piece and one of the surface layers.
