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.

Date of Patent:
Mar. 20, 2018

Filed:

Apr. 28, 2014
Applicant:

Hewlett-packard Development Company, L.p., Fort Collins, CO (US);

Inventors:

Tao Chen, San Diego, CA (US);

Xulong Fu, San Diego, CA (US);

Thomas Roger Oswald, Boise, ID (US);

Silke Courtenay, San Diego, CA (US);

Christopher Arend Toles, San Diego, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/10 (2006.01); D21H 11/02 (2006.01); D21H 17/52 (2006.01); D21H 17/55 (2006.01); D21H 17/56 (2006.01); D21H 21/16 (2006.01); D21H 21/20 (2006.01); D21H 11/08 (2006.01);
U.S. Cl.
CPC ...
D21H 11/02 (2013.01); D21H 11/08 (2013.01); D21H 11/10 (2013.01); D21H 17/52 (2013.01); D21H 17/55 (2013.01); D21H 17/56 (2013.01); D21H 21/16 (2013.01); D21H 21/20 (2013.01);
Abstract

A lightweight digital printing medium has a basis weight of less than 100 grams per square meter and includes a base paper. The base paper includes a fiber mixture of hardwood pulp and softwood pulp where at least 5% by weight of total fiber in the fiber mixture is bleached, chemi-thermo-mechanical pulp. An internal sizing agent for neutral or alkaline conditions and a wet-strength agent that is a thermosetting resin are mixed with the fiber mixture. An amount of the wet-strength agent added to the fiber mixture is at least 0.1% total dry weight of the base paper.


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