Absorbent tissue

Patent metadata

Field	Value
Publication number	US-9234313-B2
Application number	US-201414271545-A
Country	US
Kind code	B2
Filing date	May 7, 2014
Priority date	Jan 31, 2013
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

The present disclosure offers an improvement in papermaking methods and products, by providing a tissue sheet and a method to obtain a tissue sheet, with improved absorbency at a given basis weight. Thus, by way of example, the present disclosure provides a single ply tissue sheet having a basis weight greater than about 50 gsm and a specific vertical absorbent capacity greater than about 6.0 g/g.

First claim

We claim:

1. A wet-laid tissue product having a geometric mean tensile (GMT) from about 2000 to about 3500 g/3″, a geometric mean slope (GM Slope) less than about 10.0 kg and a specific vertical absorbent capacity of 6.0 g/g or greater.

2. The tissue product of claim 1 having a GMT from about 2200 to about 3500 g/3″.

3. The tissue product of claim 1 having a GM Slope from about 6.0 to about 8.0 kg.

4. The tissue product of claim 1 having a Stiffness Index less than about 5.0.

5. The tissue product of claim 1 having a MD Stretch greater than about 30 percent.

6. The tissue product of claim 1 wherein the bone dry basis weight is from about 50 to about 70 grams per square meter (gsm).

7. The tissue product of claim 1 having a sheet bulk from about 10 to about 12 cc/g.

8. The tissue product of claim 1 spirally wound into a roll, the roll having a Roll Firmness less than about 10.0 mm.

9. The tissue product of claim 8 wherein the spirally wound roll has a Roll Firmness from about 6.0 to about 8.0 mm.

10. The tissue product of claim 1 wherein the sheet is a through-air dried sheet.

11. The tissue product of claim 1 wherein the sheet is an uncreped through-air dried sheet.

12. A wet-laid tissue product having a geometric mean tensile (GMT) from about 2500 to about 2750 g/3″, a basis weight from about 60 to about 70 gsm, a sheet bulk from about 10 to about 12 cc/g and a specific vertical absorbent capacity of 6.0 g/g or greater.

13. The tissue product of claim 12 having a MD TEA greater than about 50 g*cm/cm2 and a GM Slope less than about 10.0 kg.

14. The tissue product of claim 12 having a Stiffness Index less than about 5.0.

15. The tissue product of claim 12 having a MD Stretch greater than about 30 percent.

16. The tissue product of claim 12 wherein the product comprises a single ply tissue web.

17. The tissue product of claim 16 wherein the single ply web is a through-air dried web.

18. The tissue product of claim 16 spirally wound into a roll, the roll having a Roll Firmness from about 6.0 to about 8.0 mm.

19. The tissue product of claim 16 having a Stiffness Index less than about 5.0 and a specific vertical absorbent capacity from 6.0 g/g to about 7.0 g/g.

20. The tissue product of claim 16 having a basis weight from about 65 to about 70 gsm.

Assignees

• Kimberly Clark Co

Inventors

• Hermans Michael Alan
• Koch Gretchen Sarah
• Tirimacco Maurizio
• Mccormick Erin Ann

Classifications

• D21H27/005

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

• D21H27/007 Primary

  relating to absorbency, e.g. amount or rate of water absorption, optionally in combination with other parameters relating to physical or mechanical properties · CPC title

• Y10T428/31971

  Of carbohydrate · CPC title

• Y10T428/1303

  Paper containing [e.g., paperboard, cardboard, fiberboard, etc.] · CPC title

• Y10T428/31986

  Regenerated or modified · CPC title