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.:
Date of Patent:
Jul. 31, 2018
Filed:
Oct. 24, 2016
Applicant:
International Paper Company, Memphis, TN (US);
Inventors:
Benny J. Skaggs, Springboro, OH (US);
Brian W. Brollier, Cincinnati, OH (US);
Assignee:
INTERNATIONAL PAPER COMPANY, Memphis, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 21/14 (2006.01); D21H 23/22 (2006.01); D21H 23/56 (2006.01); B05D 1/02 (2006.01); B05D 1/38 (2006.01); B05D 3/12 (2006.01); B05D 5/06 (2006.01); D21H 11/08 (2006.01); D21H 19/10 (2006.01); D21H 19/38 (2006.01); D21H 21/28 (2006.01); D21H 11/14 (2006.01); D21H 17/66 (2006.01); D21H 21/30 (2006.01);
U.S. Cl.
CPC ...
D21H 21/14 (2013.01); B05D 1/02 (2013.01); B05D 1/38 (2013.01); B05D 3/12 (2013.01); B05D 5/06 (2013.01); D21H 11/08 (2013.01); D21H 19/10 (2013.01); D21H 19/38 (2013.01); D21H 21/28 (2013.01); D21H 23/22 (2013.01); D21H 23/56 (2013.01); B05D 2203/22 (2013.01); D21H 11/14 (2013.01); D21H 17/66 (2013.01); D21H 21/30 (2013.01);
Abstract
A process for providing printable substrates by separately treating one or both surfaces of a paper substrate with an optical brightening agent (OBA) and a multivalent metal salt drying agent, where one or both surfaces of the paper substrate is treated with one of these two agents at the size press, and where the surface(s) is treated with the other of these two agents before or after the size press.