High bulk hesperaloe tissue

Patent metadata

Field	Value
Publication number	US-10132036-B2
Application number	US-201515574312-A
Country	US
Kind code	B2
Filing date	May 29, 2015
Priority date	May 29, 2015
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

The invention relates to tissue products comprising hesperaloe fibers and methods of producing the same. Preferably the hesperaloe fibers are high yield hesperaloe pulp fibers, which have demonstrated the ability to replace substantially all of the long fiber fraction of the papermaking furnish without negatively effecting important tissue product properties such as CD Stretch, CD Durability and bulk. Thus, the tissue product may comprise greater than about 90 weight percent hesperaloe fiber and more preferably greater than about 95 weight percent.

First claim

What is claimed is:

1. A tissue product comprising at least about 90 weight percent high yield hesperaloe pulp fibers, the tissue product having a CD Durability greater than about 8.0 and a sheet bulk greater than about 15 cc/g.

2. The tissue product of claim 1 having a CD Stretch greater than about 12 percent.

3. The tissue product of claim 1 having a CD Durability from about 8.0 to about 12.0.

4. The tissue product of claim 1 having a GM Stretch greater than about 15 percent.

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

6. The tissue product of claim 1 wherein the sheet bulk is from about 20 to about 30 cc/g.

7. The tissue product of claim 1 wherein the tissue product is substantially free from softwood kraft pulp fibers.

8. The tissue product of claim 1 wherein the tissue product comprises from about 95 to about 98 weight percent high yield hesperaloe pulp fibers.

9. The tissue product of claim 1 wherein the high yield hesperaloe pulp fibers have a lignin content from about 10 to about 15 weight percent.

10. The tissue product of claim 1 wherein the tissue product comprises at least one through-air dried ply.

11. The tissue product of claim 1 wherein the tissue product comprises a single-ply uncreped through-air dried tissue web.

12. A single-ply tissue web having a percent CD stretch greater than about 12 percent and a CD tensile strength from greater than about 1,000 g/3″, the tissue web comprising at least about 90 weight percent high yield hesperaloe pulp fibers.

13. The single-ply tissue web of claim 12 having a CD TEA greater than about 15.0 g·cm/cm2.

14. The single-ply tissue web of claim 12 having a CD Durability greater than about 8.0.

15. The single-ply tissue web of claim 12 having a basis weight from about 20 to about 60 gsm and a sheet bulk greater than about 15 cc/g.

16. The single-ply tissue web of claim 12 wherein the tissue web is a through-air dried web.

17. The single-ply tissue web of claim 12 wherein the tissue web is an uncreped through-air dried web.

18. A method of making a tissue web comprising the steps of: (a) forming an aqueous suspension of high yield hesperaloe pulp fibers (b) depositing an aqueous suspension of high yield hesperaloe pulp fibers onto a forming fabric traveling at a first rate of speed to form a wet web; (c) dewatering the web to a consistency of about 20 percent or greater; (d) transferring the web to a throughdrying fabric; and (e) throughdrying the web, wherein the web comprises at least about 90 weight percent high yield hesperaloe pulp fibers.

19. The method of claim 18 further comprising the step of rush transferring the dewatered web to a transfer fabric, the transfer fabric traveling at a rate of speed from about 1 to about 30 percent slower than the speed of the forming fabric.

20. The method of claim 18 wherein the throughdried web is uncreped.

Assignees

• Kimberly Clark Co

Inventors

• Collins Lynda Ellen
• Burazin Mark Alan
• Shannon Thomas Gerard
• Timm Jeffrey James

Classifications

• D21F11/00

  Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines · CPC title

• D21H27/002 Primary

  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

• D21H11/12 Primary

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

• D21F11/14

  Making cellulose wadding, filter or blotting paper · CPC title