초록 ▼

A photo-curing composition including an image forming material, an ethylenically unsaturated monomer which is curable by polymerization thereof, a polymerization initiator which initiates the polymerization of the monomer, and two or more photosensitizers each of which absorbs a light and thereby ca

A photo-curing composition including an image forming material, an ethylenically unsaturated monomer which is curable by polymerization thereof, a polymerization initiator which initiates the polymerization of the monomer, and two or more photosensitizers each of which absorbs a light and thereby causes the polymerization initiator to initiate the polymerization of the monomer, the photosensitizers having different maximum absorption wavelengths, respectively. A photosensitive capsule including a core material including the photo-curing composition, and a shell material within which the core material is encapsulated.

대표청구항 ▼

An image recording medium comprising: capsule layer comprising a plurality of photosensitive capsules; and a substrate layer which supports said capsule layer, wherein said plurality of photosensitive capsules comprise a first and a second capsule, wherein said first capsule contains: (A) a first co

An image recording medium comprising: capsule layer comprising a plurality of photosensitive capsules; and a substrate layer which supports said capsule layer, wherein said plurality of photosensitive capsules comprise a first and a second capsule, wherein said first capsule contains: (A) a first core material comprising a first photo-curing composition comprising: a first image forming material; at least one first ethylenically unsaturated monomer which is curable by polymerization thereof; a first polymerization initiator which initiates the polymerization of said first monomer; and a first and a second photosensitizer each of which absorbs a light and thereby causes said first polymerization initiator to initiate said polymerization of said first monomer, said first and second photosensitizers having a first and a second maximum absorption wavelength, respectively, a difference of said first and second maximum absorption wavelengths falling within a range of from 10 to 50 nm, wherein said first and second photosensitizers are selected from the group consisting of cyanine dyes, merocyanine dyes, Rhodacyanine dyes, carbocyanine dyes, oxonol dyes, styryl dyes, base styryl dyes, coumarin dyes, and squarilium dyes; and (B) a first shell material within which said first core material is encapsulated, and wherein said second capsule contains: (A) a second core material comprising a second photo-curing composition comprising: a second image forming material; at least one second ethylenically unsaturated monomer which is curable by polymerization thereof; a second polymerization initiator which initiates the polymerization of said second monomer; and a third and a fourth photosensitizer each of which absorbs a light and thereby causes said second polymerization initiator to initiate said polymerization of said second monomer, said third and fourth photosensitizers having a third and a fourth maximum absorption wavelength, respectively, a difference of said third and fourth maximum absorption wavelengths falling within a range from 10 to 50 nm, wherein said third and fourth photosensitizers are selected from the group consisting of cyanine dyes, merocyanine dyes, Rhodacyanine dyes, carbocyanine dyes, oxonol dyes, styryl dyes, base styryl dyes, coumarin dyes, and squarilium dyes; and (B) a second shell material within which said second core material is encapsulated.