Invention Grant
- Patent Title: Blue ink for postage printing
- Patent Title (中): 蓝色墨水用于邮资印刷
-
Application No.: US13702897Application Date: 2010-06-16
-
Publication No.: US09447293B2Publication Date: 2016-09-20
- Inventor: Zeying Ma , Robert F. Little , Peter C. Morris
- Applicant: Zeying Ma , Robert F. Little , Peter C. Morris
- 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
- Agency: HP Inc. Patent Department
- International Application: PCT/US2010/038908 WO 20100616
- International Announcement: WO2011/159298 WO 20111222
- Main IPC: C09D11/02
- IPC: C09D11/02 ; C09B67/22 ; C09B67/02 ; C09C1/00 ; C09D11/322 ; C09D11/328 ; C09D11/107
Abstract:
A blue ink for postage printing, which contains a blue pigment, a black dye, and an aqueous carrier, wherein the weight ratio of blue pigment to black dye is in the range of 50:1 to 2:1. The blue pigment is a copper phthalocyanine pigment or an anthraquinone pigment, and the black dye is an azo dye.
Public/Granted literature
- US20130079442A1 BLUE INK FOR POSTAGE PRINTING Public/Granted day:2013-03-28
Information query
IPC分类:
