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

Patent metadata

Field	Value
Publication number	US-9345375-B2
Application number	US-201514611333-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 relative water residue removal efficiency of at least 150% as compared with a like sheet without regenerated independent cellulosic microfibers. The wiper is applied, with a predetermined amount of pressure, to a residue-bearing surface. The surface is wiped 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.

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 relative water residue removal efficiency of at least 150% as compared with a like sheet 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 30% 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 35% 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 exhibits a relative water residue removal efficiency of at least 200% as compared with a like sheet without fibrillated regenerated independent cellulosic microfibers.

11. The method of cleaning residue from a surface according to claim 1 , wherein the wiper exhibits a relative water residue removal efficiency of at least 300% as compared with a like sheet without fibrillated regenerated independent cellulosic microfibers.

12. The method of cleaning residue from a surface according to claim 1 , wherein the wiper exhibits a relative water residue removal efficiency of at least 400% as compared with a like sheet without fibrillated regenerated independent cellulosic microfibers.

13. The method of cleaning residue from a surface according to claim 1 , wherein the wiper exhibits a relative water residue removal efficiency of from 150% to about 1,000% as compared with a like sheet without fibrillated regenerated independent cellulosic microfibers.

14. The method of cleaning residue from a surface according to claim 1 , wherein the wiper comprises from less than 30% by weight to about 65% by weight of the pulp-derived papermaking fibers and from about 15% by weight to more than 35% by weight of the fibrillated regenerated independent cellulosic microfibers.

Assignees

• Georgia Pacific Consumer Prod

Inventors

• Sumnicht Daniel W
• Miller Joseph H

Classifications

• D21H21/20

  Wet strength agents · CPC title

• D21H13/08

  from regenerated cellulose · CPC title

• D21H27/005

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

• Y10T428/249965

  Cellulosic · CPC title

• Y10T428/2904

  Staple length fiber · CPC title