Marking system

Patent metadata

Field	Value
Publication number	US-9464185-B2
Application number	US-201414551647-A
Country	US
Kind code	B2
Filing date	Nov 24, 2014
Priority date	Nov 25, 2013
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

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.

First claim

What is claimed is:

1. 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.

2. The substrate of claim 1 , wherein the substrate is paper.

3. The substrate of claim 1 , wherein at least one portion of the surface is not coated with the deactivating ink composition.

4. The substrate of claim 3 , wherein said at least one portion of the surface not coated with the deactivating ink composition is in the shape of at least one design.

5. 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.

6. The system of claim 5 further comprising a marking instrument for applying said marking composition to said substrate to form at least one color mark.

7. The system of claim 5 , wherein substantially the entire surface is coated with the color-triggering developer.

8. The system of claim 5 , wherein the organic solvent comprises polyethylene glycol.

9. The system of claim 5 , wherein the deactivating ink composition comprises water; a Lewis base; polyethylene glycol; and optional additives.

10. 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.

11. The method of claim 10 , comprising using a marking instrument to apply said composition to said surface.

12. 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.

13. The method of claim 12 , comprising applying the deactivating ink composition with a flexographic plate imaged with a design.

Assignees

• Crayola Llc

Inventors

• Pineiro Luis Rodrigo
• Amabile Robert Nicholas

Classifications

• C08K5/17 Primary

  Amines; Quaternary ammonium compounds · CPC title

• B41M5/3375

  Non-macromolecular compounds · CPC title

• B41M5/128

  Desensitisers; Compositions for fault correction, detection or identification of the layers · CPC title

• B41M5/323

  Organic colour formers, e.g. leuco dyes · CPC title

• C09D11/50 Primary

  Sympathetic, colour changing or similar inks · CPC title