Invention Grant
- Patent Title: Coated print media
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Application No.: US15763957Application Date: 2015-12-10
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Publication No.: US10286711B2Publication Date: 2019-05-14
- Inventor: Tao Chen , Xiaoqi Zhou , Xulong Fu , Silke Courtenay
- 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/US2015/064946 WO 20151210
- International Announcement: WO2017/099775 WO 20170615
- Main IPC: B41M5/50
- IPC: B41M5/50 ; B05D5/04 ; B41M5/30 ; B41J2/01 ; B41M5/52

Abstract:
A coated print medium can include a base stock having a basis weight of 35 gsm to 250 gsm, and a coating layer applied to the base stock at from 1 gsm to 50 gsm by dry weight. The base stock can include from 65 wt % to 95 wt % cellulose fiber with 80 wt % to 100 wt % being chemical pulp, and from 5 wt % to 35 wt % inorganic pigment filler. The coating layer can include inorganic pigment particles having an average equivalent spherical diameter from 0.2 μm to 3.5 μm; a fixative agent including metal salt, cationic amine polymer, quaternary ammonium salt, quaternary phosphonium salt, or mixture thereof; and a polymer blend including water soluble polymer and water dispersible polymer having a Zeta potential greater than −40 mV, wherein a weight ratio water soluble polymer to water dispersible polymer is from 1:25 to 1:1.
Public/Granted literature
- US20180281497A1 COATED PRINT MEDIA Public/Granted day:2018-10-04
Information query