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:
Dec. 21, 2004
Filed:
Jan. 15, 2002
Boaz Nitzan, Ganey-Tikva, IL;
Guy Peled, Herzlia, IL;
Naama Schur, Ra'anana, IL;
Moshe Frenkel, Jerusalem, IL;
Aprion Digital Ltd., Netanya, IL;
Abstract
The surface treatment for printing applications using water-based ink of the present invention comprises a surface pretreatment of the recording media prior to the deposition of the ink on the surface, wherein the pretreatment liquid is an aqueous and/or alcoholic solution or emulsion containing a polyvalent metal salt, and at least one of an organic swelling reagent and a coalescence reagent. The pretreatment liquid is applied with a rubbing motion in a thin layer of approximately 4 &mgr;m to the entire upper surface of the recording media. The swelling reagent and/or the coalescence reagent cause the upper 3-5 &mgr;m to swell and the polyvalent metal cations become embedded in the surface. After partial drying of the pretreated media, ink composition is deposited onto the surface to form an image. The ink solids precipitate in response to the embedded cations deposited in the pretreatment, and form interactions above and below the surface of the media to give a mechanically stable ink dot. After drying at temperatures high enough to evaporate the swelling reagent and/or the coalescence reagent, the ink dot remains embedded in the surface of the media.