# US 11,028,537 B2 · Dispersible wet wipes constructed with patterned binder

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,028,537 B2
- Document ID: US11028537B2
- Status: Granted
- Kind: B2
- Application number: 16/333,716
- Filed: 2016-12-30
- Published: 2019-07-25
- Granted: 2021-06-08
- Earliest claimed: 2016-12-30
- Assignees: Kimberly-Clark Worldwide, Inc.
- Applicants: Kimberly-Clark Worldwide, Inc.
- Inventors: Nathan John Vogel; Amanda Ann Gantz; Nicholas Scott Walker; David James Sealy Powling; Carly Elizabeth Herr
- Web page: https://patentgrep.com/patent/US11028537B2

## CPC

- D21H 19/66: Coatings characterised by a special visual effect, e.g. patterned, textured (marbled paper D21H27/04)
- A47K 10/16: Paper towels; Toilet paper; Holders therefor
- D04H 1/425: Cellulose series
- D04H 1/66: at spaced points or locations (D04H1/68 takes precedence)
- D04H 1/732: by fluid current, e.g. air-lay
- D06B 1/02: by spraying or projecting (D06B1/08 takes precedence)
- D06B 1/14: with a roller
- D06B 11/0056: {of fabrics}
- D06B 19/0005: {Fixing of chemicals, e.g. dyestuffs, on textile materials (D06B9/02, D06B17/00 - D06B17/06 take precedence)}
- D21H 19/82: superposed {(D21H19/84 takes precedence)}
- D21H 21/18: Reinforcing agents
- D21H 23/22: Addition to the formed paper
- D21H 23/50: Spraying or projecting (D21H23/44, D21H23/66 take precedence)
- 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
- D04H: MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL (weaving D03; knitting D04B; braiding D04C; net-making D04G; sewing D05B; tufting D05C; finishing non-woven fabrics D06); FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING {; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION}(non-woven fabrics having an intermediate or external layer of a different kind, e.g. of woven fabric, B32B)
- D06B: TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS (mechanical treatment of natural fibrous or filamentary material to obtain fibres or filaments D01B)

## Abstract

A dispersible wet wipe includes a layer of cellulosic fibers. In one embodiment, a first binder is applied in a coating comprising randomly distributed deposits of the binder. A second binder is applied in an intermittent pattern on the surface to define first regions on the surface that include first binder but no second binder and to define second regions on the surface that include both first binder and second binder. The first and second binders can have the same chemical composition. In a second embodiment, a first binder is applied to a web surface in a first pattern, and, after applying the first binder, a second binder is applied to the web surface in a second pattern that is different than the first pattern. In a third embodiment, a binder is applied to a web surface in a pattern, the pattern having first regions and second regions, wherein the add-on level of the binder in the first regions is lower than the add-on level of the binder in the second regions.

## Claims

### Claim 1

A dispersible wet wipe comprising:
a layer of cellulosic fibers comprising a first sub-layer of wetlaid tissue and a second sub-layer of airlaid tissue, the layer having a first surface and a second surface;
a first binder applied in a coating on the first surface, wherein the coating comprises randomly distributed deposits of the first binder; and
a second binder applied in an intermittent pattern on the first surface to define first regions on the first surface that include first binder but no second binder and to define second regions on the first surface that include both first binder and second binder.

### Claim 2 (depends on 1)

The dispersible wet wipe of claim 1, wherein the coating is a spray coating.

### Claim 3 (depends on 1)

The dispersible wet wipe of claim 1, wherein the intermittent pattern is a roll-printed pattern.

### Claim 4 (depends on 1)

The dispersible wet wipe of claim 1, wherein the intermittent pattern is a lattice pattern.

### Claim 5 (depends on 1)

The dispersible wet wipe of claim 1, wherein the intermittent pattern comprises continuous lines of second binder that extend in a primarily cross-machine direction, and wherein the intermittent pattern does not comprise continuous lines of second binder that extend in a primarily machine direction.

### Claim 6 (depends on 1)

The dispersible wet wipe of claim 1, wherein both the first binder and the second binder comprise a water-dilution triggerable polymer.

### Claim 7 (depends on 6)

The dispersible wet wipe of claim 6 further comprising a wetting solution, the wetting solution comprising an insolubilizing agent that renders stable the first and second binders prior to the wipe being flushed in a toilet.

### Claim 8 (depends on 1)

The dispersible wet wipe of claim 1, the first binder further applied in a coating on the second surface, wherein the coating comprises randomly distributed deposits of the first binder; and
the second binder further applied in an intermittent pattern on the second surface to define first regions on the second surface that include first binder but no second binder and to define second regions on the second surface that include both first binder and second binder.

### Claim 9

A dispersible wet wipe comprising:
a layer of cellulosic fibers comprising a first sub-layer of wetlaid tissue and a second sub-layer of airlaid tissue, the layer having a first surface and a second surface;
a first binder applied to the first surface in a continuous and pattern-less coating; and
a second binder applied to the first surface in a discontinuous pattern to define first regions on the first surface that include first binder but no second binder and to define second regions on the first surface that include both first binder and second binder.

### Claim 10 (depends on 9)

The dispersible wet wipe of claim 9, wherein the coating is a spray coating.

### Claim 11 (depends on 9)

The dispersible wet wipe of claim 9, wherein the discontinuous pattern is a lattice pattern.

### Claim 12 (depends on 9)

The dispersible wet wipe of claim 9, wherein the discontinuous pattern comprises continuous lines of second binder that extend in a primarily cross-machine direction, and wherein the discontinuous pattern does not comprise continuous lines of second binder that extend in a primarily machine direction.

### Claim 13 (depends on 9)

The dispersible wet wipe of claim 9, wherein the first binder and second binder have the same chemical composition.

### Claim 14 (depends on 9)

The dispersible wet wipe of claim 9, the first binder further applied to the second surface in a continuous and pattern-less coating; and
the second binder further applied to the second surface in a discontinuous pattern to define first regions on the second surface that include first binder but no second binder and to define second regions on the second surface that include both first binder and second binder.

### Claim 15

A dispersible wet wipe comprising:
a layer of cellulosic fibers comprising a first sub-layer of wetlaid tissue and a second sub-layer of airlaid tissue, the layer having a first surface having a first surface area and a second surface having a second surface area;
a first binder applied to the first surface to define a first binder surface area,
a second binder applied to the first surface to define a second binder surface area,
wherein the second binder surface area is at most 50 percent of the first binder surface area.

### Claim 16 (depends on 15)

The dispersible wet wipe of claim 15, wherein the second binder surface area is at most 10 percent of the first binder surface area.

### Claim 17 (depends on 15)

The dispersible wet wipe of claim 15, wherein the first binder surface area is 100 percent of the first surface area.

### Claim 18 (depends on 15)

The dispersible wet wipe of claim 15, wherein the second binder is applied in a lattice pattern.

### Claim 19 (depends on 15)

The dispersible wet wipe of claim 15, wherein the first binder and second binder have the same chemical composition.

### Claim 20 (depends on 15)

The dispersible wet wipe of claim 15, wherein the first binder is further applied to the second surface to define a second surface first binder surface area; and
the second binder is further applied to the second surface to define a second surface second binder surface area, wherein the second surface second binder surface area is at most 10 percent of the second surface first binder surface area.