Marking system
AssigneeCrayola LLC
InventorsLuis Rodrigo Pineiro, Robert Nicholas Amabile
Life of this patent
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Abstract
A marking system comprises a substrate having a surface coated with a color-triggering developer and a deactivating ink composition; and a marking composition comprising at least one color precursor. At least one “non-color developing portion” of the surface is coated with both the color-triggering developer and the deactivating ink composition, and at least one “color-developing portion” of the surface is coated with the color-triggering developer and is not coated with the deactivating ink composition. Color development occurs at the color-developing portion(s) and does not occur at the non-color developing portion(s) upon application of the marking composition to the surface of the substrate.
Claims13
A substrate comprising a surface coated with a color-triggering developer and a deactivating ink composition, the deactivating ink composition comprising:
- a Lewis base that is capable of complexing with a Lewis acid that has been coated on the substrate, wherein the Lewis base comprises triisopropanolamine;
- and
- an organic solvent that inhibits penetration of a leuco dye intermediate into the substrate.
A marking system comprising:
- a substrate comprising a surface coated with a color-triggering developer and a deactivating ink composition;
- and
- a marking composition comprising at least one leuco dye intermediate,
- wherein at least one non-color developing portion of the surface is coated with both the color-triggering developer and the deactivating ink composition, and at least one color-developing portion of the surface is coated with the color-triggering developer and is not coated with the deactivating ink composition,
- wherein color development occurs at the color-developing portion(s) and does not occur at the non-color developing portion(s) upon application of the marking composition to the surface of the substrate, and
- wherein the deactivating ink composition comprises:
- a Lewis base that is capable of complexing with a Lewis acid that has been coated on the substrate, wherein the Lewis base comprises triisopropanolamine;
- and
- an organic solvent that inhibits penetration of a leuco dye intermediate into the substrate.
A method of using a marking system comprising:
- applying a marking composition comprising at least one color precursor to a surface of a substrate coated with a color-triggering developer and a deactivating ink composition, wherein the deactivating ink composition comprises:
- a Lewis base that is capable of complexing with a Lewis acid that has been coated on the substrate, wherein the Lewis base comprises triisopropanolamine;
- and
- an organic solvent that inhibits penetration of a leuco dye intermediate into the substrate.
A method of making a marking system comprising:
- applying a deactivating ink composition to at least one portion of a substrate surface coated with a color-triggering developer, wherein the deactivating ink composition comprises:
- a Lewis base that is capable of complexing with a Lewis acid that has been coated on the substrate, wherein the Lewis base comprises triisopropanolamine;
- and
- an organic solvent that inhibits penetration of a leuco dye intermediate into the substrate.
Dependencies are inferred from the claim text.