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US 9,956,757 B2Granted
Acrylate ink compositions for ink-based digital lithographic printing
AssigneeXerox Corporation
InventorsC. Geoffrey Allen, Mihaela Maria Birau, Carolyn Moorlag, Aurelian Valeriu Magdalinis
Life of this patent
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Abstract
Compatible acrylate ink sets include acrylate ink composition having 30% or less by weight pigment, 10% or less dispersant, between 40% and 80% acrylate, 12% or less photoinitiator, a viscosity between 5×105 and 3×107 cps at 35° C., and a 60 second tack between 25 and 50 g-m at 35° C.
Claims18
A set of compatible acrylate ink compositions, comprising:
- a first acrylate ink composition, comprising a first pigment;
- and
- a second acrylate ink composition, comprising a second pigment;
- wherein each of the acrylate ink compositions is compatible with the other acrylate ink composition, and wherein each of the acrylate ink compositions comprises:
- 30% or less by weight pigment, based on a total weight of the acrylate ink composition,
- 10% or less by weight dispersant, based on the total weight of the acrylate ink composition,
- between 40% and 50% by weight of an acrylate, based on the total weight of the acrylate ink composition, and
- 12% or less by weight photoinitiator, based on the total weight of the acrylate ink composition,
- wherein a viscosity of each acrylate ink composition is between 5×105 and 3×107 cps at 35° C.,
- wherein a 60 second tack of each acrylate ink composition is between 25 and 50 g-m at 35° C.,
- wherein the acrylate comprises a mixture of a tetrafunctional polyester acrylate oligomer, a propoxylated trimethylolpropane triacrylate monomer, a polyester acrylate oligomer that is different than the tetrafunctional polyester acrylate oligomer, and at least one of an ethoxylated trimethylolpropane triacrylate monomer or a monomer having functionality greater than or equal to 4.
8 more elements
A set of compatible acrylate ink compositions, comprising:
- a first acrylate ink composition, comprising a first pigment;
- and
- a second acrylate ink composition, comprising a second pigment;
- wherein each of the acrylate ink compositions comprises:
- 30% or less by weight pigment, based on a total weight of the acrylate ink composition,
- 10% or less by weight dispersant, based on the total weight of the acrylate ink composition,
- between 40% and 50% by weight of an acrylate, based on the total weight of the acrylate ink composition, and
- 12% or less by weight photoinitiator, based on the total weight of the acrylate ink composition,
- wherein a viscosity of each acrylate ink composition is between 5×105 and 3×107 cps at 35° C.,
- wherein a 60 second tack of each acrylate ink composition is between 25 and 50 g-m at 35° C.,
- wherein the acrylate consists of a mixture of a tetrafunctional polyester acrylate oligomer, a propoxylated trimethylolpropane triacrylate monomer, and a polyester acrylate oligomer that is different than the tetrafunctional polyester acrylate.
8 more elements
A set of compatible acrylate ink compositions, comprising:
- a first acrylate ink composition, comprising a first pigment;
- and
- a second acrylate ink composition, comprising a second pigment;
- wherein each of the acrylate ink compositions is compatible with the other acrylate ink composition, and wherein each of the acrylate ink compositions comprises:
- 30% or less by weight pigment, based on a total weight of the acrylate ink composition,
- 10% or less by weight dispersant, based on the total weight of the acrylate ink composition,
- between 40% and 80% by weight of an acrylate, based on the total weight of the acrylate ink composition, and
- 12% or less by weight photoinitiator, based on the total weight of the acrylate ink composition,
- wherein a viscosity of each acrylate ink composition is between 5×105 and 3×107 cps at 35° C.,
- wherein a 60 second tack of each acrylate ink composition is between 25 and 50 g-m at 35° C.,
- wherein the acrylate comprises a mixture of a tetrafunctional polyester acrylate oligomer, an ethoxylated trimethylolpropane triacrylate monomer and a polyester acrylate oligomer that is different than the tetrafunctional polyester acrylate, and at least one of a propoxylated trimethylolpropane triacrylate monomer, or a monomer having functionality greater than or equal to 4.
8 more elements
Dependencies are inferred from the claim text.