Consumer scrubbing article with solvent-free texture layer and method of making same

Patent metadata

Field	Value
Publication number	US-11446911-B2
Application number	US-201716078204-A
Country	US
Kind code	B2
Filing date	Feb 16, 2017
Priority date	Feb 26, 2016
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A scrubbing article including a substrate and a texture layer. The texture layer is formed on at least one surface of the substrate, and is a solvent-free texture layer. The texture layer can include a plastisol ink or a hot melt adhesive, and may further include a plurality of ceramic microspheres. Methods of manufacture are also provided in which a solvent-free texture layer composition is applied to a substrate and then solidified to form a texture layer. In some non-limiting embodiments, the texture layer composition includes a hot melt adhesive and is applied to the substrate in the form of a wetted cellulose sponge.

First claim

What is claimed is:

1. A scrubbing article comprising:
a substrate; and
a solvent-free texture layer formed on a surface of the substrate,
wherein the texture layer includes a polyamide, polyester, polyacrylate, polycarbonate, or epoxy hot-melt adhesive, and
wherein the texture layer comprises ceramic microparticles or Al 2 O 3 , CaCO 3 , SiO 2 , or talc abrasive minerals.

2. The scrubbing article of claim 1 , wherein the texture layer is formed by a solidified texture layer composition applied to the surface, and further wherein the texture layer composition includes a solvent-free primary base material.

3. The scrubbing article of claim 1 , wherein the texture layer defines a height relative to the surface of at least 1000 microns.

4. The scrubbing article of claim 1 , wherein the substrate is a cellulose sponge.

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

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

7. The scrubbing article of claim 1 , wherein the substrate is a cellulose sponge having an average ultimate tensile strain of at least 20%.

8. A method of producing a scrubbing article comprising:
providing a substrate;
applying a texture layer composition in flowable form onto a surface of the substrate, wherein a primary base material of the texture layer composition is solvent-free, wherein the texture layer composition comprises a polyamide, polyester, polyacrylate, polycarbonate, or epoxy hot melt adhesive, and wherein the texture layer comprises ceramic microparticles or Al 2 O 3 , CaCO 3 , SiO 2 , or talc abrasive minerals; and
solidifying the applied texture layer composition to form a texture layer secured to the substrate.

9. The method of claim 8 , wherein the step of solidifying the applied texture layer composition is characterized by the absence of solvent removal from the texture layer composition.

10. The method of claim 8 , wherein the substrate is a cellulose sponge and wherein during the step of applying the texture layer composition, the cellulose sponge is wet.

Assignees

• 3M Innovative Properties Co

Inventors

• Corn Stewart H
• Gunes Ibrahim S

Classifications

• B32B2432/00

  Cleaning articles, e.g. mops or wipes · CPC title

• C08J2301/00

  Characterised by the use of cellulose, modified cellulose or cellulose derivatives · CPC title

• C08J9/365

  Coating · CPC title

• B32B2255/26

  Polymeric coating · CPC title

• B32B5/245

  another layer next to it being a foam layer · CPC title