Thermally resistant aqueous inks
AssigneeSun Chemical Corporation
InventorsRob Deighton, Christine Juckes, Callum Parkins
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Abstract
The present invention relates to a method of providing a packaged food product comprising printing a substrate with an aqueous printing ink composition, drying said ink composition to provide a printed substrate and packaging a food stuff with said printed substrate, wherein the method excludes printing or applying any layers over the dried ink composition, wherein the ink composition comprises water and polyester resin. The present invention also relates to use of an aqueous printing ink for printing on a substrate, wherein the printed substrate has less than 50 ppb migratable species when heated to temperatures in excess of 150° C., wherein the aqueous ink composition comprises water and polyester resin.
Claims15
A method of providing an ovenable packaged food product comprising printing a substrate with an aqueous printing ink composition, drying said ink composition to provide a printed substrate and packaging a foodstuff with said printed substrate, wherein the method excludes printing or applying any layers over the dried ink composition,
- wherein the ink composition comprises one or more colorants, water and polyester resin,
- wherein the one or more colorants is selected from the group consisting of Paliotol Yellow D1818, Irgazin Orange D2905, Irgazin Rubine L4025, Heliogen Blue D6840, Cromophtal Violet D5700, Suncroma C47-2222, Isoindoline yellow, diketopyrrolo-pyrrole orange, diketopyrrolo-pyrrole red, quinacridone red, phthalocyanine blue, dioxazin violet, carbon black, titanium dioxide, Pigment Yellow 138, Pigment Orange 71, Pigment Red 264, Pigment Blue 15:0, Pigment Violet 37, Pigment Magenta 122, Pigment Black 7 and blends thereof,
- wherein the polyester resin is a renewable polyester or selected from the group consisting of an aqueous polyester dispersion, a solution of a sulfopolyester, a rosin-derived polyester and blends thereof,
- wherein the ink composition does not contain any self-crosslinking acrylics, and
- wherein the printed substrate has less than 50 ppb migratable species when heated to 220° C.
An ovenable packaged food product comprising a food stuff and a printed substrate, wherein the printed substrate comprises an ink layer derived from an aqueous printing ink composition comprising one or more colorants, water and polyester resin,
- wherein the one or more colorants is selected from the group consisting of Paliotol Yellow D1818, Irgazin Orange D2905, Irgazin Rubine L4025, Heliogen Blue D6840, Cromophtal Violet D5700, Suncroma C47-2222, Isoindoline yellow, diketopyrrolo-pyrrole orange, diketopyrrolo-pyrrole red, quinacridone red, phthalocyanine blue, dioxazin violet, carbon black, titanium dioxide, Pigment Yellow 138, Pigment Orange 71, Pigment Red 264, Pigment Blue 15:0, Pigment Violet 37, Pigment Magenta 122, Pigment Black 7 and blends thereof,
- wherein the polyester resin is a renewable polyester or selected from the group consisting of an aqueous polyester dispersion, a solution of a sulfopolyester, a rosin-derived polyester and blends thereof,
- wherein the ink composition does not contain any self-crosslinking acrylics, and
- wherein the packaged food product excludes any additional ink layer, varnish layer or plastic layer over the printed ink and
- wherein the printed substrate has less than 50 ppb migratable species when heated to 220° C.
A method of providing an ovenable packaged food product comprising printing a substrate with an aqueous printing ink composition, drying said ink composition to provide a printed substrate and packaging a foodstuff with said printed substrate, wherein the method excludes printing or applying any layers over the dried ink composition,
- wherein the ink composition comprises one or more colorants, water and polyester resin,
- wherein the one or more colorants is selected from the group consisting of Paliotol Yellow D1818, Irgazin Orange D2905, Irgazin Rubine L4025, Heliogen Blue D6840, Cromophtal Violet D5700, Suncroma C47-2222, Isoindoline yellow, diketopyrrolo-pyrrole orange, diketopyrrolo-pyrrole red, quinacridone red, phthalocyanine blue, dioxazin violet, carbon black, titanium dioxide, Pigment Yellow 138, Pigment Orange 71, Pigment Red 264, Pigment Blue 15:0, Pigment Violet 37, Pigment Magenta 122, Pigment Black 7 and blends thereof,
- wherein the polyester resin is a renewable polyester selected from the group consisting of an aqueous polyester dispersion, a solution of a sulfopolyester, a rosin-derived polyester and blends thereof,
- wherein the ink composition does not contain any self-crosslinking acrylics, and
- wherein the printed substrate has less than 50 ppb migratable species when heated to 220° C.
Dependencies are inferred from the claim text.