Highly dispersible hesperaloe tissue

Patent metadata

Field	Value
Publication number	US-10337147-B2
Application number	US-201715816361-A
Country	US
Kind code	B2
Filing date	Nov 17, 2017
Priority date	Nov 23, 2016
Publication date	Jul 2, 2019
Grant date	Jul 2, 2019

Abstract

The invention provides tissue products comprising hesperaloe fibers and having satisfactory strength in-use and good dispersibility. To produce the instant tissue products the inventors have successfully moderated the changes in strength and stiffness typically associated with substituting conventional wood papermaking fibers, such as NSWK, with hesperaloe fibers. Not only have the inventors succeeded in moderating changes to strength and stiffness they have improved dispersibility. As such, the tissue products of the present invention have properties comparable to, or better than, those produced using conventional papermaking fibers, such as wood pulp fibers.

First claim

What is claimed is:

1. A tissue product comprising from about 5 to about 50 percent, by weight of the product, high yield hesperaloe fibers, the tissue product having a geometric mean tensile (GMT) less than about 1,000 g/3″, a wet CD tensile greater than about 70 g/3″ and a slosh box break up time less than about 100 seconds.

2. The tissue product of claim 1 having a slosh box break up time less than about 50 seconds.

3. The tissue product of claim 1 having a dry burst strength greater than about 800 gf.

4. The tissue product of claim 1 having a CD TEA greater than about 5.0 g·cm/cm 2 .

5. The tissue product of claim 1 having a CD tensile strength greater than about 500 g/3″.

6. The tissue product of claim 1 having a wet durability index greater than about 7.0.

7. The tissue product of claim 1 having a wet burst strength greater than about 100 gf.

8. The tissue product of claim 1 having a basis weight from about 30 to about 60 grams per square meter (gsm) and a sheet bulk greater than about 10 cc/g.

9. The tissue product of claim 1 having a wet CD stretch greater than about 10 percent.

10. The tissue product of claim 1 comprising from about 20 to about 50 percent, by weight of the product, high yield hesperaloe fibers.

11. The tissue product of claim 1 wherein the tissue product comprises two plies and each ply is a through-air dried tissue web.

12. A tissue product comprising at least one multi-layered through-air dried tissue web comprising a first and a second layer, the first layer being substantially free from high yield hesperaloe pulp fibers and the second layer consisting essentially of high yield hesperaloe pulp fibers, the tissue product having a Dry Durability Index greater than about 35.0 and a slosh box break up time less than about 100 seconds, wherein the tissue product comprises from about 20 to about 50 weight percent high yield hesperaloe pulp fibers.

13. The tissue product of claim 12 having a wet CD tensile greater than about 70 g/3″.

14. The tissue product of claim 12 having a wet burst strength greater than about 100 gf.

15. The tissue product of claim 12 having a basis weight from about 30 to about 60 gsm and a sheet bulk from about 10 to about 15 cc/g.

16. The tissue product of claim 12 wherein the tissue product is substantially free from softwood kraft pulp fibers.

17. A single-ply through-air dried tissue product comprising from about 5 to about 50 percent, high yield hesperaloe pulp fibers, the tissue product having a GMT less than about 1,000 g/3″, a Stiffness Index less than about 10.0 and a slosh box break up time less than about 100 seconds.

18. The tissue product of claim 17 having a slosh box break up time from about 30 to about 40 seconds.

19. The tissue product of claim 17 having a dry burst strength greater than about 800 gf.

20. The tissue product of claim 17 having a CD stretch from about 8.0 to about 12.0 percent and a CD tensile strength from about 500 to about 700 g/3″.

Assignees

• Kimberly Clark Co

Inventors

• Rouse Kayla Elizabeth
• Underhill Richard Louis
• Paulson David John
• Sauer Felicia Marie

Classifications

• D21H27/42

  comprising dry-laid paper · CPC title

• D21H11/12

  Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse · CPC title

• D21H27/38

  at least one of the sheets having a fibrous composition differing from that of other sheets · CPC title

• D21H27/005 Primary

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