Method of cleaning residue from a surface using a high efficiency disposable cellulosic wiper

Patent metadata

Field	Value
Publication number	US-9345377-B2
Application number	US-201514611339-A
Country	US
Kind code	B2
Filing date	Feb 2, 2015
Priority date	Mar 21, 2006
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

A method of cleaning residue from a surface includes providing a disposable cellulosic wiper including a percentage by weight of pulp-derived papermaking fibers, and a percentage by weight of regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibits a Laplace pore volume fraction at pore sizes less than 15 microns of at least 1.5 times that of a like wiper prepared without such microfibers. The wiper is applied, with a predetermined amount of pressure, to a residue-bearing surface. The surface is wiped with the wiper, while applying the predetermined amount of pressure, to remove residue from the surface, such that the surface has less than 1 g/m 2 of residue after being wiped under the predetermined amount of pressure.

First claim

We claim:

1. A method of cleaning residue from a surface, the method comprising:
(A) providing a disposable cellulosic wiper comprising (a) a percentage by weight of pulp-derived papermaking fibers, and (b) from about 10% to about 75% by weight of fibrillated regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml, the microfibers being selected and present in amounts such that the wiper exhibits a Laplace pore volume fraction at pore sizes less than 15 microns of at least 1.5 times that of a like wiper prepared without fibrillated regenerated independent cellulosic microfibers;
(B) applying the wiper, with a predetermined amount of pressure, to a residue-bearing surface; and
(C) wiping the surface with the applied wiper, while applying the predetermined amount of pressure, to remove residue from the surface, such that the surface has less than 1 g/m 2 of residue after being wiped under the predetermined amount of pressure with the applied wiper.

2. The method of cleaning residue from a surface according to claim 1 , wherein the surface is selected from the group consisting of glass, metal, ceramic, a countertop, an appliance, and a floor.

3. The method of cleaning residue from a surface according to claim 1 , wherein the surface has less than 0.5 g/m 2 of residue after being wiped with the applied wiper.

4. The method of cleaning residue from a surface according to claim 1 , wherein the surface has less than 0.25 g/m 2 of residue after being wiped with the applied wiper.

5. The method of cleaning residue from a surface according to claim 1 , wherein the surface has less than 0.1 g/m 2 of residue after being wiped with the applied wiper.

6. The method of cleaning residue from a surface according to claim 1 , wherein the surface has less than 0.01 g/m 2 of residue after being wiped with the applied wiper.

7. The method of cleaning residue from a surface according to claim 1 , wherein the percentage by weight of the pulp-derived papermaking fibers is 25% or more.

8. The method of cleaning residue from a surface according to claim 1 , wherein the wiper includes more than 25% by weight of the fibrillated regenerated independent cellulosic microfibers.

9. The method of cleaning residue from a surface according to claim 1 , wherein the wiper includes more than 30% by weight of the fibrillated regenerated independent cellulosic microfibers.

10. The method of cleaning residue from a surface according to claim 1 , wherein the wiper includes more than 35% by weight of the fibrillated regenerated independent cellulosic microfibers.

11. The method of cleaning residue from a surface according to claim 1 , wherein the wiper exhibits a Laplace pore volume fraction at pore sizes less than 15 microns of at least twice that of a like wiper prepared without fibrillated regenerated independent cellulosic microfibers.

12. The method of cleaning residue from a surface according to claim 1 , wherein the wiper exhibits a Laplace pore volume fraction at pore sizes less than 15 microns of at least three times that of a like wiper prepared without fibrillated regenerated independent cellulosic microfibers.

13. The method of cleaning residue from a surface according to claim 1 , wherein the wiper exhibits a Laplace pore volume fraction at pore sizes less than 15 microns of from about 1.5 to about 5 times that of a like wiper prepared without fibrillated regenerated independent cellulosic microfibers.

Assignees

• Georgia Pacific Consumer Prod

Inventors

• Sumnicht Daniel W
• Miller Joseph H

Classifications

• D21H11/20

  Chemically or biochemically modified fibres · CPC title

• D21H27/005

  relating to physical or mechanical properties, e.g. tensile strength, stretch, softness · CPC title

• D21H17/52

  Epoxy resins · CPC title

• D21H27/002

  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) · CPC title

• Y10T428/2965

  Cellulosic · CPC title