Claims
- 1. A heat-sensitive recording material for laser recording comprising a support having thereon a heat-sensitive layer comprising at least a first substantially colorless coloring component, a second substantially colorless coloring component which reacts with said first substantially colorless coloring component to develop a color, and an infrared-absorbing dye,
- wherein said first substantially colorless coloring component is present in microcapsules and said infrared-absorbing dye and said second substantially colorless coloring component are present outside microcapsules,
- wherein said first substantially colorless coloring component is a photodecomposable diazo compound and said second substantially colorless coloring component is a coupler, or said first substantially colorless coloring component is an electron-donating dye precursor and said second substantially colorless coloring component is a developer, and
- wherein the heat-sensitive layer is formed by coating a coating solution containing an emulsion obtained by dissolving said second substantially colorless coloring component and said infrared-absorbing dye in an organic solvent, which is slightly soluble or insoluble in water, and then emulsion-dispersing the solution in an aqueous medium.
- 2. A heat-sensitive recording material for laser recording as claimed in claim 1, comprising an infrared-absorbing dye which is rendered colorless by absorbing light in a specific wavelength range.
- 3. A heat-sensitive recording material for laser recording as claimed in claim 1, wherein said developer has a melting point of 50.degree. C. to 250.degree. C.
- 4. A heat-sensitive recording material for laser recording as claimed in claim 1, wherein said infrared-absorbing dye absorbs light in the near infrared range.
- 5. A heat-sensitive recording material for laser recording as claimed in claim 1, wherein said infrared-absorbing dye absorbs light having a wavelength of from 700 nm to 900 nm.
- 6. A heat-sensitive recording material for laser recording as claimed in claim 1, wherein said infrared-absorbing dye is a cyanine dye.
- 7. A heat-sensitive recording material for laser recording as claimed in claim 1, wherein said infrared-absorbing dye is selected from the group consisting of cationic dyes, complex-forming dyes and quinone neutral dyes.
- 8. A heat-sensitive recording material for laser recording as claimed in claim 1, wherein said infrared-absorbing dye is selected from the group consisting of thiol nickel complex dyes and phthalocyanine dyes.
- 9. A heat-sensitive recording material for laser recording as claimed in claim 1, wherein said infrared-absorbing dye is selected from the group consisting of naphthoquinone dyes and anthraquinone dyes.
Priority Claims (5)
Number |
Date |
Country |
Kind |
3-62683 |
Mar 1991 |
JPX |
|
3-062684 |
Mar 1991 |
JPX |
|
3-099511 |
Apr 1991 |
JPX |
|
3-130417 |
May 1991 |
JPX |
|
3-138382 |
May 1991 |
JPX |
|
Parent Case Info
This is a continuation-in-part of application No. 07/845,259, filed Mar. 3, 1992 now abandoned.
US Referenced Citations (20)
Foreign Referenced Citations (3)
Number |
Date |
Country |
3906867 |
Sep 1989 |
DEX |
1238687 |
Sep 1989 |
JPX |
2153782 |
Jun 1990 |
JPX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
845259 |
Mar 1992 |
|