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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10196780 B1

PDFFull Text
Date of Patent:
Feb. 05, 2019

Filed:

Jun. 14, 2017

High softness, high durability bath tissue incorporating high lignin eucalyptus fiber

Applicant:

Gpcp Ip Holdings Llc, Atlanta, GA (US);

Inventors:

Jeffrey A. Lee, Neenah, WI (US);

Daniel W. Sumnicht, Hobart, WI (US);

Assignee:

GPCP IP Holdings LLC, Atlanta, GA (US);

Attorney:

Laura L. Bozek

Primary Examiner:

Catherine A Simone

Int. Cl.
CPC ...
D21H 27/40 (2006.01); D21H 27/30 (2006.01); D21H 27/00 (2006.01); D21H 11/08 (2006.01); B32B 29/06 (2006.01); B32B 3/30 (2006.01); D21H 11/02 (2006.01); D21H 13/08 (2006.01); B32B 29/00 (2006.01);
U.S. Cl.
CPC ...
D21H 27/40 (2013.01); B32B 3/30 (2013.01); B32B 29/005 (2013.01); B32B 29/06 (2013.01); D21H 11/02 (2013.01); D21H 11/08 (2013.01); D21H 13/08 (2013.01); D21H 27/002 (2013.01); D21H 27/005 (2013.01); D21H 27/30 (2013.01); B32B 2250/03 (2013.01); B32B 2555/00 (2013.01); Y10T 428/24612 (2015.01); Y10T 428/24942 (2015.01);
Abstract

A cellulosic tissue includes cellulosic fibers that include at least one of (a) chemically pulped fibers and (b) mechanically pulped fibers. The cellulosic fibers include (i) a percentage by weight of eucalyptus fibers, and (ii) a percentage by weight of regenerated cellulosic microfibers. The cellulosic tissue further includes virgin chemically pulped fibers, with a percentage by weight of recycle fibers. The eucalyptus fibers have been prepared from eucalyptus chips by alkaline peroxide mechanical pulping, exhibiting an ISO brightness of at least 0.82×(% VCP)+0.795×(% RF)+0.84×(% APMP), in which % VCP is the percentage of virgin chemical pulp in the tissue, % RF, the percentage of recycle fiber, and % alkaline peroxide mechanical pulping (APMP), the percentage of APMP eucalyptus.

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