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High density tissue and process of making

 Paul Thomas Weisman et al
A smooth, high density tissue. The tissue has a relatively low caliper, yet maintains visually discernible machine direction micropeaks at a suitable micropeak frequency.
Inventors: Paul Thomas Weisman, Scott Thomas Loughran
Assignee: The Procter & Gamble Company

U.S. Classification
162/109; 428/153

International Classification
D21H 1100

View patent at USPTO

Citations

Patent NumberTitleIssue date
1224650(unknown)May 1917
3044228(unknown)Jul 1962
3124504(unknown)Mar 1964
4191609Soft absorbent imprinted paper sheet and method of manufacture thereofMar 4, 1980
4300981Layered paper having a soft and smooth velutinous surface, and method of making such paperNov 17, 1981
4528239Deflection memberJul 9, 1985
5354425Tissue paper treated with polyhydroxy fatty acid amide softener systems that are biodegradableOct 11, 1994

Claims

What is claimed is:

1. A sheet of tissue, wherein said tissue is a macroscopically monoplanar through air dried multidensity cellulosic fibrous structure having low density regions extending outwardly from the plane of said tissue, said tissue having two opposed faces, at least one of said faces having a smoothness less than or equal to about 600 microns and a micropeak frequency of at least about 30 micropeaks per inch.

2. A sheet of tissue according to claim 1, said one of said faces of said tissue having a smoothness less than or equal to 550 microns.

3. A sheet of tissue according to claim 2, said one of said faces of said tissue having a smoothness less than or equal to 500 microns.

4. A sheet of tissue according to claim 1, said tissue having a bulk density of at least about 0.130 grams per cubic centimeter.

5. A sheet of tissue according to claim 4, said tissue having a bulk density of at least about 0.140 grams per cubic centimeter.

6. A sheet of tissue according to claim 5, wherein both said faces of said tissue have a smoothness of less than or equal to about 600 microns.

7. A sheet of tissue according to claim 4, said tissue having a caliper less than about 8.0 mils.

8. A sheet of tissue according to claim 7, said tissue having a caliper less than about 7.0 mils.

9. A sheet of tissue according to claim 1, said tissue having a machine direction micropeak height of at least about 0.05 millimeters.

10. A sheet of tissue according to claim 9, said tissue having a micropeak height of at least about 0.10 millimeters.

11. A sheet of tissue, wherein said tissue is a macroscopically monoplanar through air dried multidensity cellulosic fibrous structure having low density regions extending outwardly from the plane of said tissue, said having two opposed faces, one said face of said tissue having a smoothness less than or equal to about 500 microns, said tissue having a bulk density of at least about 0.150 grams per cubic centimeter and a micropeak frequency of at least about 30 micropeaks per inch.

12. A sheet of tissue according to claim 11, said tissue having a bulk density of at least about 0.160 grams pot cubic centimeter.

13. A sheet of tissue according to claim 11, wherein both said faces of said tissue have a smoothness of less than about 500 microns.

Drawings