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:
Aug. 30, 2016

Filed:

Jan. 16, 2012
Applicants:

Gil Bar-haim, Holon NA, IL;

Amir Ofir, Nes Ziona, IL;

Ilanit Mor, Kiryat Ono, IL;

Alina Grishman, Rehovot, IL;

Albert Teishev, Rishon le-zion, IL;

Inventors:

Gil Bar-Haim, Holon NA, IL;

Amir Ofir, Nes Ziona, IL;

Ilanit Mor, Kiryat Ono, IL;

Alina Grishman, Rehovot, IL;

Albert Teishev, Rishon le-zion, IL;

Assignee:

Hewlett-Packard Indigo B.V., Maastricht, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/41 (2006.01); C09D 11/02 (2014.01); B41J 2/21 (2006.01); G03G 9/135 (2006.01); G03G 9/13 (2006.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); B65B 3/00 (2006.01); B65D 85/00 (2006.01);
U.S. Cl.
CPC ...
C09D 11/02 (2013.01); B41J 2/2107 (2013.01); B41J 2/41 (2013.01); B65B 3/00 (2013.01); B65D 85/70 (2013.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01); G03G 9/131 (2013.01); G03G 9/135 (2013.01); G03G 9/1355 (2013.01);
Abstract

Described herein is a method for electrostatic printing including: (i) providing an ink composition having: a hydrocarbon carrier liquid and particles includes a resin and a colorant, and wherein the ink composition contains less than 0.3 mg of charge director per g of solids in the ink composition; (ii) adding a charge director to the ink composition, such that the total amount of charge director in the ink composition is at least 0.6 mg per g of solids in the ink composition, and, (iii) within a predetermined time of adding the charge director, printing the ink onto a print medium in an electrostatic printing process, wherein the predetermined time is 90 minutes or less.


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