Claims
- 1. A process for producing a dry image comprising the steps of:(a) applying an opaque coating composition to the surface of a substrate to form an opaque coating on the substrate, wherein the surface is selected from the group consisting of a light-emitting surface, a reflective surface, a glossy surface, a luminescent surface, and a combination thereof; and (b) contacting the coated substrate with a recording liquid, wherein the opaque coating composition includes an opaque coating agent comprising a polymeric polyacid and a polymeric polybase, and wherein the opaque coating contacted with the recording liquid becomes transparent as a result of the contact.
- 2. The process of claim 1, wherein the image is a metallic-looking image.
- 3. The process of claim 1, wherein the coated substrate is cured or allowed to dry after being contacted with the recording liquid.
- 4. The process of claim 3, wherein the opaque coating on the substrate is allowed to dry.
- 5. The process of claim 1, wherein the polymeric polyacid contains two or more carboxylic, sulfonic and/or phosphonic acid groups and the polybase contains two or more primary, secondary or tertiary amine groups.
- 6. The process of claim 5, further comprising repeating step (a) at least once prior to conducting step (b), wherein at least two different opaque coating compositions are used in the repeated application steps of (a).
- 7. The process of claim 1, wherein step (a) is repeated at least once, producing a multilayer coating on the substrate.
- 8. The process of claim 1, wherein the polymeric polyacid is a carboxylic acid-containing polymer and the polymeric polybase comprises a nitrogenous polymer.
- 9. The process of claim 8, wherein the polymeric polyacid is selected from the group consisting of poly(acrylic acid), poly(acrylonitrile-acrylic acid), poly(styrene-acrylic acid), poly(butadiene-acrylonitrile acrylic acid), poly(butylacrylate-acrylic acid), poly(ethyl acrylate-acrylic acid), poly(ethylene-propylene-acrylic acid), poly(propylene-acrylic acid), alginic acid, phytic acid, and combinations thereof, and the polymeric polybase is selected from the group consisting of polyethyleneimine, polyvinylpyridine, polyallylamine, N-alkylated polyallylamine, N,N-dialkylated polyallylamine, polyvinylaziridine, polyimidazole, polylysine, chitosan, poly(amino)ethylene, poly(alkylated amino)ethylene, ethoxylated polyethyleneimine, propoxylated polyethyleneimine, and combinations thereof.
- 10. The process of claim 9, wherein the polyallylamine is N-alkylated polyallylamine, N,N-dialkylated polyamine, or a combination thereof.
- 11. The process of claim 9, wherein the polymeric polyacid is poly(acrylic acid).
- 12. The process of claim 1, wherein the opaque coating composition is aqueous.
- 13. The process of claim 1, wherein the opaque coating composition includes a film-forming binder.
- 14. The process of claim 13, wherein the film-forming binder represents approximately 1 wt. % to approximately 50 wt. % of the opaque coating composition, wherein the composition is an image enhancing composition.
- 15. The process of claim 14, wherein the film-forming binder represents approximately 1 wt. % to approximately 40 wt. % of the image-enhancing composition.
- 16. The process of claim 15, wherein the film-forming binder represents approximately 1 wt. % to approximately 15 wt. % of the image-enhancing composition.
- 17. The process of claim 1, wherein the opaque coating composition further includes a colorant.
- 18. The process of claim 17, wherein the colorant is a pigment.
- 19. The process of claim 18, wherein the pigment is selected from the group consisting of silica, titanium dioxide, calcium silicate and calcium carbonate.
- 20. The process of claim 17, wherein the colorant is a dye.
- 21. The process of claim 1, wherein the opaque coating agent represents approximately 5 wt. % to approximately 95 wt. % of the opaque coating composition, based upon total solids weight of the composition after drying.
- 22. The process of claim 1, wherein the opaque coating composition further includes an optical brightener.
- 23. The process of claim 22, wherein the optical brightener represents approximately 0.01 wt. % to approximately 20 wt. % of the opaque coating composition.
- 24. The process of claim 1, wherein the opaque coating composition further includes a crosslinking agent.
- 25. The process of claim 24, wherein the crosslinking agent is ammonium zirconyl carbonate.
- 26. The process of claim 24, wherein the crosslinking agent is zirconium acetate.
- 27. The process of claim 1, wherein the surface of the substrate is reflective.
- 28. The process of claim 27, wherein the reflective surface is metallic.
- 29. The process of claim 1, wherein the substrate is a paper/foil laminate.
- 30. The process of claim 1, wherein the substrate is a metallized film.
- 31. The process of claim 1, wherein step (b) is performed using a writing instrument.
- 32. A process for producing a dry image comprising the steps of:(a) printing a preselected image on a substrate surface selected from the group consisting of a glossy surface, a reflective surface, a luminescent surface, and a combination thereof; (b) applying an opaque coating composition on the substrate that is printed with a preselected image to form an opaque coating; and (c) applying a recording liquid to the coated substrate, wherein the opaque coating composition includes an opaque coating agent comprising a polymeric polyacid and a polymeric polybase and the opaque coating such that it becomes increasingly translucent or transparent as a result of being contacted with the recording liquid.
- 33. The process of claim 32, wherein the coated substrate is cured or allowed to dry after being contacted with the recording liquid.
- 34. The process of claim 33, wherein the reflective surface is metallic.
- 35. The process of claim 33, wherein the reflective surface is holographic.
- 36. The process of claim 32, wherein the opaque coating composition further includes a colorant.
- 37. The process of claim 32, wherein the substrate has a reflective surface.
- 38. The process of claim 32, wherein the substrate is comprised of a paper/foil laminate.
- 39. The process of claim 32, wherein the substrate is comprised of a metallized film.
- 40. The process of claim 32, wherein step (c) is carried out using a writing instrument.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims priority to provisional U.S. patent application Ser. No. 60/190,840, filed Mar. 20, 2000.
US Referenced Citations (15)
Foreign Referenced Citations (1)
Number |
Date |
Country |
10-157280 |
Jun 1998 |
JP |
Non-Patent Literature Citations (1)
Entry |
U.S. patent application Ser. No. 60/190,840, Nigam, filed Mar. 20, 2000. |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/190840 |
Mar 2000 |
US |