Claims
- 1. A process for producing a photosensitive composition capable of forming full color images comprising the steps of:
- providing an agitating continuous phase;
- dispersing a first internal phase comprising a first color-forming agent and a first photohardenable or photosoftenable composition in said continuous phase to form droplets of said first internal phase in said continuous phase;
- dispersing a second internal phase comprising a second color-forming agent and a second photohardenable or photosoftenable composition in said continuous phase to form droplets of said second internal phase in said continuous phase;
- dispersing a third internal phase comprising a third color-forming agent and a third photohardenable or photosoftenable composition in said continuous phase to form droplets of said third internal phase in said continuous phase; and
- forming discrete microcapsule walls around said droplets of said first, second and third internal phases;
- wherein each of said first, second and third color-forming agents is different and in combination are capable of producing full color images upon reaction with a developer material and wherein said first, second and third internal phases are dispersed in said continuous phase in the presence of an agent which controls droplet intermixing.
- 2. The process according to claim 1 wherein said first color-forming agent comprises a cyan color-forming agent, said second color-forming agent comprises a magenta color-forming agent and said third color-forming agent comprises a yellow color-forming agent.
- 3. The process according to claim 2 wherein said first, second and third photohardenable or photosoftenable compositions comprise photohardenable compositions.
- 4. The process according to claim 3 wherein each of said photohardenable compositions comprise a free radical addition polymerizable or crosslinkable compound and a photoinitiator.
- 5. The process according to claim 2 wherein said forming step comprises forming microcapsule walls by a method selected from the group consisting of coacervation, interfacial polymerization, polymerization of one or more monomers in an oil, in situ polymerization, melting, dispersing and cooling.
- 6. The process according to claim 5 wherein said forming step comprises in situ polymerization.
- 7. The process according to claim 6 wherein said forming step forms amine-formaldehyde microcapsules.
- 8. The process according to claim 7 wherein said continuous phase is an aqueous phase and includes a methylated polygalacturonic acid and a sulfonated polystyrene.
- 9. The process according to claim 2 wherein said agent which controls droplet intermixing is a pre-wall former.
- 10. The process according to claim 9 wherein said agent is a polyisocyanate.
- 11. A photosensitive composition capable of forming full color images comprising:
- a first set of color-forming microcapsules having a first internal phase comprising a first color-forming agent and a first photohardenable or photosoftenable composition;
- a second set of color-forming microcapsules having a second internal phase comprising a second color-forming agent and a second photohardenable or photosoftenable composition; and
- a third set of color-forming microcapsules having a third internal phase comprising a third color-forming agent and a third photohardenable or photosoftenable composition;
- wherein said photosensitive composition is produced by a process comprising the steps of:
- providing an agitating continuous phase;
- dispersing a first internal phase comprising a first color-forming agent and a first photohardenable or photosoftenable composition in said continuous phase to form droplets of said first internal phase in said continuous phase;
- dispersing a second internal phase comprising a second color-forming agent and a second photohardenable or photosoftenable composition in said continuous phase to form droplets of said second internal phase in said continuous phase;
- dispersing a third internal phase comprising a third color-forming agent and a third photohardenable or photosoftenable composition in said continuous phase to form droplets of said third internal phase in said continuous phase; and
- forming discrete microcapsule walls around said droplets of said first, second and third internal phase;
- wherein each of said first, second and third color-forming agents is different and in combination are capable of producing full color images upon reaction with a developer material and wherein said first, second and third internal phases are dispersed in said continuous phase in the presence of an agent which controls droplet intermixing.
- 12. The composition according to claim 11 wherein said first color-forming agent comprises a cyan color-forming agent, said second color-forming agent comprises a magenta color-forming agent and said third color-forming agent comprises a yellow color-forming agent.
- 13. The composition according to claim 12 wherein said first, second and third photohardenable or photosoftenable compositions comprise photohardenable compositions, and wherein said photohardenable compositions comprise a free radical addition polymerizable or cross-linkable compound and a photoinitiator.
Parent Case Info
This is a division of application Ser. No. 07/218,717, filed Jul. 13, 1988, now U.S. Pat. No. 4,929,531.
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Divisions (1)
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Number |
Date |
Country |
Parent |
218717 |
Jul 1988 |
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