公开(公告)号：US20180030295A1

公开(公告)日：2018-02-01

申请号：US15544600

申请日：2015-04-27

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Paul Joseph BRUINSMA ,  Vladek KASPERCHIK ,  Thomas W. BUTLER

IPC: C09D11/322 ,  B41J2/21 ,  B41J11/00 ,  C09D11/54 ,  B41M5/50

CPC classification number: C09D11/322 ,  B41J2/2114 ,  B41J11/0015 ,  B41M5/0017 ,  B41M5/0047 ,  B41M5/0064 ,  B41M5/502 ,  B41M7/00 ,  C09D11/106 ,  C09D11/40 ,  C09D11/54

Abstract: The present disclosure is drawn to fluid sets for inkjet imaging and can comprise a white ink and a fixer fluid. The white ink can include an aqueous ink vehicle, from 5 wt % to 50 wt % of a white metal oxide pigment, and from 0.02 wt % to 2 wt % of an anionic low molecular weight polymer. The white metal oxide pigment can have an average particulate size from 100 nm to 2,000 nm, and can be dispersed by a non-ionic or predominantly non-ionic dispersant having an acid number not higher than 100 mg KOH/g based on dry polymer weight. The anionic low molecular weight polymer can have a weight average molecular weight of 3,000 Mw to 50,000 Mw and an acid number higher than 100 mg KOH/g based on dry polymer weight. The fixer fluid can include an aqueous fixer vehicle and from 0.1 wt % to 25 wt % cationic polymer.

公开(公告)号：US20160355696A1

公开(公告)日：2016-12-08

申请号：US15119087

申请日：2014-03-06

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Raymond Jr. ADAMIC ,  Vladek KASPERCHIK

IPC: C09D11/38 ,  B41J2/01 ,  C09D11/36

CPC classification number: C09D11/38 ,  B41J2/01 ,  B41M5/0023 ,  C09D11/322 ,  C09D11/36

Abstract: The present disclosure provides non-Newtonian inkjet inks and related methods. In one example, a non-Newtonian inkjet ink can comprise a dispersion of metal oxide particles in an amount ranging from 0.1% to 10% by weight based on the total weight of the non-Newtonian inkjet ink; a salt in an amount of 0.05% to 10% by weight based on the total weight of the non-Newtonian inkjet ink; and an organic solvent. Additionally, the metal oxide can form a structured network in a presence of the salt and the inkjet ink can have a dynamic viscosity ranging from 25 cps to 10,000 cps at shear rate of 5 s−1 and a dynamic viscosity ranging from 1 cps to 50 cps at a shear rate of 10,000 s−1.

Abstract translation: 本公开提供了非牛顿喷墨油墨和相关方法。 在一个实例中，非牛顿喷墨油墨可以包含基于非牛顿喷墨油墨的总重量的0.1重量％至10重量％的金属氧化物颗粒的分散体; 相对于非牛顿喷墨油墨的总重量为0.05〜10重量％的盐; 和有机溶剂。 此外，金属氧化物可以在盐的存在下形成结构化网络，并且喷墨油墨可以在5s -1的剪切速率下具有25cps至10,000cps的动态粘度和1cps至50的动态粘度 剪切速率为10,000 s-1。