Composite materials from charged or functionalized latexes for inkjet applications
First Claim
1. An inkjet receiver comprising a support and one or more layers coated on the support, at least one of which comprises a particulate material and a binder, the particulate material comprising composite particles having an inner portion and an outer portion, wherein the inner portion comprises an organic polymer material comprising latex particles selected from a functionalized latex, and the outer portion comprises an inorganic material having enhanced keeping properties, wherein the composite particles are core-shell particles where the inner portion is the core and the outer portion is the shell, the core-shell particles comprisinga core comprising an organic polymer which is a functionalized latex;
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Accused Products
Abstract
An inkjet receiver comprising a support and one or more layers coated on the support, at least one of which comprises a particulate material and a binder, the particulate material comprising composite particles having an inner portion and an outer portion or core-shell arrangement, wherein the inner portion comprises a negatively-charged, positively-charged or functionalized latex, and the outer portion comprises an inorganic material having enhanced keeping properties and reduced ozone-induced dye fade.
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Citations
12 Claims
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1. An inkjet receiver comprising a support and one or more layers coated on the support, at least one of which comprises a particulate material and a binder, the particulate material comprising composite particles having an inner portion and an outer portion, wherein the inner portion comprises an organic polymer material comprising latex particles selected from a functionalized latex, and the outer portion comprises an inorganic material having enhanced keeping properties, wherein the composite particles are core-shell particles where the inner portion is the core and the outer portion is the shell, the core-shell particles comprising
a core comprising an organic polymer which is a functionalized latex; - and
a shell comprising an oligomeric or polymeric metal oxide, the oligomeric or polymeric metal oxide being covalently bound to the latex via a linker group. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An inkjet receiver comprising a support and one or more layers coated on the support, at least one of which comprises a particulate material and a binder, the particulate material comprising composite particles having an inner portion and an outer portion, wherein the inner portion comprises an organic polymer material comprising latex particles selected from a functionalized latex, and the outer portion comprises an inorganic material having enhanced keeping properties, the particulate material comprising core-shell particles, the core-shell particles having:
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a core comprising an organic polymer comprising a functionalized latex; and a shell comprising an oligomeric or polymeric metal oxide, the oligomeric or polymeric metal oxide being covalently bound to the latex material via a linker group, the core-shell particles being obtainable by reacting a functionalized latex with a metal oxide in the presence of a metal oxide polymerization catalyst. - View Dependent Claims (9)
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10. A method of manufacturing an inkjet receiver, the method comprising providing a support and coating at least one layer of a coating composition onto the support and drying the coated support, said composition comprising a dispersion of a particulate material and a binder in a coating medium, the particulate material comprising composite particles having an inner portion and an outer portion, wherein said inner portion comprises an organic polymer material comprising latex particles selected from a functionalized latex, and said outer portion comprises an inorganic material having enhanced keeping properties, wherein the composite particles are core-shell particles where the inner portion is the core and the outer portion is the shell, the core-shell particles comprising a core comprising an organic polymer which is a functionalized latex, and a shell comprising an oligomeric or polymeric metal oxide, the oligomeric or polymeric metal oxide being covalently bound to the latex via a linker group.
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11. A method of printing, which comprises the steps of:
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(a) providing an inkjet printer that is responsive to digital data signals; (b) loading the inkjet printer with an inkjet receiver comprising a support and one or more layers coated on said support, at least one of which comprises a particulate material and a binder, said particulate material comprising composite particles having an inner portion and an outer portion, wherein said inner portion comprises an organic polymer material comprising latex particles selected from a functionalized latex, and said outer portion comprises an inorganic material having enhanced keeping properties, wherein the composite particles are core-shell particles where the inner portion is the core and the outer portion is the shell, the core-shell particles comprising a core comprising an organic polymer which is a functionalized latex, and a shell comprising an oligomeric or polymeric metal oxide, the oligomeric or polymeric metal oxide being covalently bound to the latex via a linker group; (c) loading the inkjet printer with a inkjet ink; and (d) printing on the inkjet receiver using the inkjet ink in response to digital data signals. - View Dependent Claims (12)
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Specification