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US 2003/0149133 A1Published application
Ink composition
OwnerWillie Lau, Chao-Jen Chunginventors
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Abstract
An ink composition is provided including at least one colorant, an aqueous medium, and a polymeric binder. The polymeric binder contains at least one hydrophobic monomer or fluorinated monomer as a polymerized unit. Also provided is a method inkjet printing the ink composition onto a substrate. The ink composition is suitable for providing dried ink films with improved wet rub resistance.
Claims10
1) An ink composition suitable for use as an inkjet ink, comprising, based on the weight of said ink composition:
- a) from 0.5 to 10 weight % of at least one colorant;
- b) from 0.1 to 25 weight % of a polymeric binder comprising as polymerized units, based on the weight of said polymeric binder:
- i) from 5 to 100 weight % of at least one first monomer selected from the group consisting of hydrophobic monomer and fluorinated monomer,
- ii) from 0 to 95 weight % of at least one second monomer,
- iii) from 0 to 10 weight % of at least one acid monomer or salts thereof, wherein said polymeric binder has an average particle diameter in the range of 50 to 600 nm and a glass transition temperature in the range of −60 to 45° C.;
- and
- c) an aqueous medium.
4 more elements
6) A method of inkjet printing, comprising the steps of:
- a) providing a substrate;
- b) ejecting an ink composition through an orifice onto said substrate, wherein said ink composition comprises, based on weight of said ink composition:
- i) from 0.5 to 10 weight % of at least one colorant;
- ii) from 0.1 to 25 weight % of a polymeric binder comprising as polymerized units, based on the weight of said polymeric binder, from 5 to 100 weight % of at least one first monomer selected from the group consisting hydrophobic monomer and fluorinated monomer, from 0 to 95 weight % of at least one second monomer, from 0 to 10 weight % of at least one acid monomer or salts thereof, wherein said polymeric binder has an average particle diameter in the range of 50 to 600 nm and a glass transition temperature in the range of −60 to 45° C.;
- and
- iii) an aqueous medium;
- and
- c) drying or allowing to dry said ink composition.
5 more elements
Dependencies are inferred from the claim text.