Invention Grant
- Patent Title: White inks
-
Application No.: US15562618Application Date: 2015-07-20
-
Publication No.: US10465085B2Publication Date: 2019-11-05
- Inventor: Vladek Kasperchik , Paul Joseph Bruinsma , Marcos A. Barreto
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Spring
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Spring
- Agency: Thorpe North & Western LLP
- International Application: PCT/US2015/041176 WO 20150720
- International Announcement: WO2017/014746 WO 20170126
- Main IPC: C09D11/00
- IPC: C09D11/00 ; C09D11/54 ; C09D11/322 ; C09C1/36 ; C09D11/037 ; C09D11/102 ; C09D11/107

Abstract:
The present disclosure provides an example where a white ink can include an aqueous ink vehicle and from 5 wt % to 60 wt % of a white flocculated colorant mass. The white flocculated colorant mass can include white metal oxide pigment, an alumina coating, and polymeric dispersant associated with a surface of the alumina-coated pigment. The white metal oxide pigment can have an average particulate size from 100 nm to 2,000 nm. The alumina coating on the white metal oxide pigment can form an alumina-coated pigment where the alumina coating is predominantly alumina, and the white metal oxide pigment content to alumina content can be from 99:1 to 9:1 by weight.
Public/Granted literature
- US20180105714A1 WHITE INKS Public/Granted day:2018-04-19
Information query
IPC分类: