Invention Grant
- Patent Title: Ink composition, digital printing system and methods
- Patent Title (中): 油墨成分,数字印刷系统及方法
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Application No.: US12848092Application Date: 2010-07-30
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Publication No.: US08496324B2Publication Date: 2013-07-30
- Inventor: Thomas Anthony , Napoleon J. Leoni , Henryk Birecki , Omer Gila , Michael H. Lee
- Applicant: Thomas Anthony , Napoleon J. Leoni , Henryk Birecki , Omer Gila , Michael H. Lee
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Main IPC: G01D11/00
- IPC: G01D11/00 ; B41J29/38 ; B41J2/01

Abstract:
An ink composition has controlled conductivity, and a digital printing system and a method of printing an ink employ an offset inkjet printing platform. The ink composition includes pigment particles dispersed in an oil-based dielectric carrier fluid with an oil-soluble dispersant. A concentration of dispersant is a fraction of a concentration of the pigment particles sufficient to render an electrical conductivity of the ink composition less than 100 pico Siemens per centimeter (pS/cm). The printing system includes an ink having an electrical conductivity less than or equal to about 300 pS/cm, an inkjet print head, a transfer medium, a developer, a remover and an image transferer. In the method of printing, the ink is nonelectrostatically jetted to the transfer medium, and developed into a fixed image. A portion of a supernatant is removed from the fixed image, and the fixed image is transferred to a media substrate.
Public/Granted literature
- US20120026224A1 INK COMPOSITION, DIGITAL PRINTING SYSTEM AND METHODS Public/Granted day:2012-02-02
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