Aqueous pigmented ink jet inks for printing on vinyls
First Claim
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1. An ink jet ink composition suitable for use in printing directly to hydrophobic substrates, said ink composition comprising:
- a) an aqueous vehicle containing at least water and a water-miscible solvent selected from the group consisting of glycols and glycol ethers, wherein water constitutes no more than 80% by weight based on the total weight of the vehicle;
b) an insoluble colorant;
c) a polymeric dispersant; and
d) a surfactant selected from the group consisting of silicon surfactants and fluorinated surfactants.
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Abstract
An ink jet ink composition and process for printing on vinyl substrates in which the ink comprises an aqueous vehicle containing at least water and a water-miscible glycol or glycol ether, wherein water constitutes no more than 80% by weight based on the total weight of the vehicle; an insoluble colorant (preferably a pigment); a polymeric dispersant; a silicon or fluorinated surfactant; and, optionally but preferably, a graft copolymer binder having a hydrophobic backbone and non-ionic, hydrophilic side chains, which binder is soluble in the aqueous vehicle but insoluble in water.
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9 Claims
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1. An ink jet ink composition suitable for use in printing directly to hydrophobic substrates, said ink composition comprising:
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a) an aqueous vehicle containing at least water and a water-miscible solvent selected from the group consisting of glycols and glycol ethers, wherein water constitutes no more than 80% by weight based on the total weight of the vehicle; b) an insoluble colorant; c) a polymeric dispersant; and d) a surfactant selected from the group consisting of silicon surfactants and fluorinated surfactants. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A process of making an image on a hydrophobic substrate, the process comprising jetting an ink composition onto a hydrophobic substrate, wherein the ink composition comprises:
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a) an aqueous vehicle containing at least water and a water-miscible glycol, wherein water constitutes no more than 80% by weight based on the total weight of the vehicle; b) an insoluble colorant; c) a polymeric dispersant; and d) a surfactant selected from the group consisting of silicon surfactants and fluorinated surfactants. - View Dependent Claims (8, 9)
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Specification