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:
May. 07, 2002
Filed:
Aug. 06, 1998
Daniel Loosli, Bern, CH;
Pelikan Produktions AG, EGG/ZH, CH;
Abstract
Description of an inkset for utilization in inkjet printers, comprising a first ink containing a watery ink medium, a first color pigment dispersed in the ink medium, and optionally, a first dispersing medium, whereby the first color pigment and/or the first dispersing medium carry ionic groups, a second ink containing a watery ink medium, a color substance soluble in the ink medium, whereby the soluble color substance acts as precipitation means for the first color pigment. A first ink containing a watery ink medium, a first color medium dispersed in the ink medium and optionally, a first dispersing medium, whereby the first color pigment and/or the first dispersing medium carry ionic groups, a second ink containing a watery ink medium and a second color pigment and/or, optionally, a second dispersing medium, whereby the second color medium and/or the second dispersing medium act as precipitation agent for the first color pigment. A first ink containing a watery ink medium, a first color pigment dispersed in the ink medium and optionally, a first dispersing medium, whereby the first color pigment and/or the first dispersing agent carry ionic groups, a second ink containing a watery ink medium and a water soluble, solvent-dissolved solvent color substance, optionally, with an emulsifier for this system, whereby the solvent color substance, the emulsifier and/or the water-insoluble act as precipitation agents for the first color pigments. These inks specifically reduce the bleeding at the contact lines of the different coloring during printing, and they have an adequate shelf life.