Method of cleaning residue from a surface using a high efficiency disposable cellulosic wiper
View Patent ↗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.
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.