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:
Oct. 26, 1982
Filed:
Apr. 02, 1979
Applicant:
Inventors:
Siegbert Fischer, Heidenheim, DE;
Lothar Pfalzer, Heidenheim, DE;
Assignee:
J. M. Voith GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162-5 ; 162-6 ; 162 76 ;
Abstract
Papers containing dye substances in microencapsulated form are reprocessed by dissolving the papers in a pulper in the presence of chemical collectors and/or dispersing agents and in a neutral pH range and then feeding the dissolved pulp to the flotation or washing zone for the addition of a bleaching agent.