Claims
- 1. A photosensitive material comprising a support having a layer of microcapsules on one surface thereof, and microcapsules having an internal phase including a photohardenable composition, said composition comprising a free radical addition polymerizable or crosslinkable compound, a photoinitiator, and a color-forming agent, said microcapsules including a first set of microcapsules containing a cyan color-forming agent, a second set of microcapsules containing a magenta color-forming agent and a third set of microcapsules containing a yellow color-forming agent, at least one of said first, second and third sets of microcapsules containing a complex of an infrared sensitive cationic dye and a boranyl anion capable of absorbing infrared radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound and wherein the other sets of microcapsules are sensitive to visible or ultraviolet radiation.
- 2. The photosensitive material of claim 1 wherein said boranyl anion is represented by the formula I: where R1, R2, R3, and R4 are independently selected from the group consisting of alkyl, aryl, alkaryl, allyl, aralkyl, alkenyl, alkynyl, alicyclic and saturated or unsaturated heterocyclic groups.
- 3. The photosensitive material of claim 1 wherein said material is capable of being used in forming images by a process which comprises the steps of image-wise exposing said microcapsules to three distinct wavelengths of actinic radiation which respectively harden said first, second and third sets of microcapsules and subjecting said microcapsules to a uniform rupturing force.
- 4. The photosensitive material of claim 3 wherein at least one of said infrared radiation is greater than 800 nm.
- 5. The photosensitive material of claim 4 wherein at least one of said sets of microcapsules, other than said set containing said infrared-sensitive complex, contains a visible light sensitive complex of a cationic dye and a boranyl anion.
- 6. The photosensitive material of claim 4 wherein at least one of said sets of microcapsules, other than said set containing said infrared-sensitive complex, contains an ultraviolet sensitive photoinitiator.
- 7. The photosensitive material of claim 1 wherein the complex is a complex of a dye selected from the group consisting of:No.Dye Structureλmax (TMPTA) 1820 nm 2830 nm 3822 nm 4768 nm 5748 nm 6785 nm 7828 nm 7A813 nm 8814 nm 92 Ph3BBun Ph = phenyl Bu = butyl102 Ph3BBun112 Ph3BBun122 Ph3BBun132 Ph3BBun142 Ph3BBun152 Ph3BBun162 Ph3BBun172 Ph3BBun182 Ph3BBun192 Ph3BBun202 Ph3BBun212 Ph3BBun222 Ph3BBun232 Ph3BBun242 Ph3BBun.
- 8. A photosensitive material comprising a support having a layer of microcapsules on one surface thereof, and microcapsules having an internal phase including a photohardenable composition, said composition comprising a free radical addition polymerizable or crosslinkable compound, a photoinitiator, and a color-forming agent, said microcapsules including a first set of microcapsules containing a cyan color-forming agent, a second set of microcapsules containing a magenta color-forming agent and a third set of microcapsules containing a yellow color-forming agent, at least one of said first, second and third sets of microcapsules containing a complex of an infrared sensitive cationic dye and a boranyl anion capable of absorbing infrared radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound wherein one set of microcapsules is sensitive at about 800 nm, another set is sensitive at about 900 nm and a third set is sensitive at about 1100 nm.
CROSS-REFERENCE TO RELATED APPLICATIONS
The present invention claims priority under 35 U.S.C. §119 from Provisional Patent Application Serial No. 60/075,892, filed Feb. 25, 1998.
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