# US 11,026,552 B2 · Consumer scrubbing article with stain release and method of making same

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- Number: US 11,026,552 B2
- Document ID: US11026552B2
- Status: Granted
- Kind: B2
- Application number: 16/069,634
- Filed: 2017-01-17
- Published: 2019-01-03
- Granted: 2021-06-08
- Earliest claimed: 2016-01-19
- Assignees: 3M Innovative Properties Company
- Applicants: 3M Innovative Properties Company
- Inventors: Stewart H. Corn; Matthew S. Cole; Ibrahim S. Gunes; Windy A. Santa Cruz; Dennard J. Powell
- Web page: https://patentgrep.com/patent/US11026552B2

## CPC

- A47L 13/16: Cloths; Pads; Sponges (metal scraping sponges A47L13/07)
- A47L 17/08: Pads; Balls of steel wool, wire, or plastic meshes
- B32B 5/022: {Non-woven fabric}
- B32B 5/024: {Woven fabric}
- B32B 5/026: {Knitted fabric}
- B32B 5/08: the fibres or filaments of a layer being of different substances {, e.g. conjugate fibres, mixture of different fibres}
- B32B 5/18: characterised by features of a layer {of} foamed material
- B32B 5/245: {another layer next to it being a foam layer}
- 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 25/042: {of natural rubber or synthetic rubber}
- B32B 25/045: {of foam}
- B32B 27/065: {of foam}
- B32B 27/08: of synthetic resin
- B32B 27/283: {comprising polysiloxanes}
- B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/34: comprising polyamides
- B32B 27/36: comprising polyesters
- B32B 27/40: comprising polyurethanes
- B32B 2250/02: 2 layers
- B32B 2255/02: on fibrous or filamentary layer
- B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer
- B32B 2255/102: synthetic resin or rubber layer being a foamed layer
- B32B 2255/20: Inorganic coating
- B32B 2255/26: Polymeric coating
- B32B 2255/28: Multiple coating on one surface
- 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 2262/067: Wood fibres
- B32B 2262/14: Mixture of at least two fibres made of different materials
- B32B 2266/0278: Polyurethane
- B32B 2307/538: Roughness
- B32B 2307/718: Weight, e.g. weight per square meter
- B32B 2432/00: Cleaning articles, e.g. mops or wipes
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

A scrubbing article including a substrate, a stain release coating and a texture layer. The stain release coating is applied to the substrate and is present over a at least a major surface of the substrate, and the texture layer is formed over the stain release coating opposite the substrate. In some embodiments, the texture layer is printed on to the stain release coating. The substrate can assume various forms, such as nonwoven, fabric (e.g., woven or knitted), foam, film and sponge material or combinations thereof.

## Claims

### Claim 1

A scrubbing article comprising:
a substrate defining opposing, first and second major surfaces;
a stain release coating, which includes a stain release agent, applied to the substrate and present over at least the first major surface; and
a texture layer formed over the stain release coating opposite the substrate.

### Claim 2 (depends on 1)

The scrubbing article of claim 1, wherein the stain release agent is a non-fluorochemical stain release agent.

### Claim 3 (depends on 2)

The scrubbing article of claim 2, wherein the stain release agent includes one of polyethylene oxide and polyvinylpyrrolidone.

### Claim 4 (depends on 2)

The scrubbing article of claim 2, wherein the stain release agent includes a polymer selected from the group consisting of styrene-maleic anhydride, acrylate and phenol.

### Claim 5 (depends on 1)

The scrubbing article of claim 1, wherein the stain release agent is a fluorochemical stain release agent.

### Claim 6 (depends on 5)

The scrubbing article of claim 5, wherein the stain release agent includes a fluorochemical urethane.

### Claim 7 (depends on 1)

The scrubbing article of claim 1, wherein the stain release coating is present over the second major surface of the substrate.

### Claim 8 (depends on 1)

The scrubbing article of claim 1, wherein the substrate includes a material selected from the group consisting of a nonwoven web, a woven web, a knitted web, a foam, a cellulose sponge, and a film.

### Claim 9 (depends on 1)

The scrubbing article of claim 1, wherein the texture layer is printed over the stain release coating.

### Claim 10 (depends on 1)

The scrubbing article of claim 1, wherein an entirety of an outer surface of the texture layer is exposed relative to the stain release coating.

### Claim 11 (depends on 10)

The scrubbing article of claim 10, wherein the pattern includes a plurality of discrete segments.

### Claim 12 (depends on 1)

The scrubbing article of claim 1, wherein the texture layer includes a multiplicity of ceramic microparticles.

### Claim 13 (depends on 1)

The scrubbing article of claim 1, wherein the texture layer defines a pattern.

### Claim 14 (depends on 1)

The scrubbing article of claim 1, wherein the texture layer comprises one of an e-beam or UV treated texture layer.

### Claim 15 (depends on 1)

The scrubbing article of claim 1, further comprising:
an auxiliary substrate affixed to the second major face.

### Claim 16 (depends on 15)

The scrubbing article of claim 15, wherein the auxiliary substrate includes a material selected from the group consisting of a cellulose sponge and a foam.

### Claim 17

A method of producing a scrubbing article comprising:
providing a substrate defining opposing, first and second major surfaces;
applying a stain release coating to the substrate such that the stain release coating is present over at least the first major surface; and
forming a texture layer over the stain release coating opposite the substrate.

### Claim 18 (depends on 17)

The method of claim 17, wherein the stain release coating includes a non-fluorochemical stain release agent.

### Claim 19 (depends on 18)

The method of claim 18, wherein the stain release agent includes a material selected from the group consisting of polyethylene oxide and polyvinylpyrrolidone.

### Claim 20 (depends on 17)

The method of claim 17, wherein the step of forming a texture layer includes:
providing a flowable texture layer composition; and
transferring the flowable texture layer composition onto the stain release coating.