Piezo inkjet inks and methods for making and using same
First Claim
Patent Images
1. An organic solvent-based piezo ink, comprising:
- (a) pigment particles;
(b) binder;
(c) plasticizer;
(d) organic solvent;
(e) a fluorochemical surfactant;
(f) an antifoaming agent comprising silica and silicone oil;
wherein the ink has a viscosity of less than 100 mPa·
sec measured at 25°
C. and a shear rate of at least 1000 sec-1.
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Abstract
An organic solvent-based piezo ink is disclosed having (a) pigment particles; (b) binder; (c) plasticizer; (d) organic solvent; (e) a fluorochemical surfactant; and (f) an antifoaming agent comprising silica and silicone oil. Optionally light and heat stabilizers are also included. Method of making and using this ink are also disclosed.
98 Citations
19 Claims
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1. An organic solvent-based piezo ink, comprising:
- (a) pigment particles;
(b) binder;
(c) plasticizer;
(d) organic solvent;
(e) a fluorochemical surfactant;
(f) an antifoaming agent comprising silica and silicone oil;
wherein the ink has a viscosity of less than 100 mPa·
sec measured at 25°
C. and a shear rate of at least 1000 sec-1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19)
- (a) pigment particles;
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17. A method of making an organic solvent-based piezo ink, comprising:
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(a) placing pigment into an organic solvent to form a pigment paste; and (b) mixing the pigment paste, binder, plasticizer, fluorochemical surfactant, antifoaming agent comprising silica and silicone oil into the same organic solvent or a different organic solvent.
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Specification