Claims
- 1. A heat-sensitive composition comprising a substance which absorbs light and generates heat, an anionic self water-dispersible resin particle having an acid value of 10 to 300 and a number average molecular weight within the range of 3,000 to 50,000, and a fluorine base surfactant, wherein said anionic self water-dispersible resin particles are fine particles produced by a process including a first step in which an anionic self water-dispersible resin is dissolved or dispersed in an organic solvent and a second step in which the dissolved or dispersed composition is phase reverse-emulsified to generate fine particles in an aqueous medium.
- 2. The heat-sensitive composition as claimed in claim 1, wherein said anionic self water-dispersible resin particle has a number average molecular weight within the range of 5,000 to 50,000.
- 3. The heat-sensitive composition as claimed in claim 1, wherein said substance which absorbs light and generates heat is a graft-polymerized pigment.
- 4. The heat-sensitive composition as claimed in claim 3, wherein said graft-polymerized pigment is carbon black.
- 5. The heat-sensitive composition as claimed in claim 1, wherein the second step is followed by a third step in which the organic solvent and excess water are removed.
- 6. The heat-sensitive composition as claimed in claim 5, wherein the second step further includes a step of deneutralizing acid group after the reverse phase emulsification.
- 7. The heat-sensitive composition as claimed in claim 1, wherein said anionic self water-dispersible resin particle comprises as essential components a copolymer obtained by using an acid group-containing polymerizable monomer and/or an acid group-containing polymerizable oligomer having at least one acid group selected from the group consisting of a carboxylic group, a sulfonic group, and a sulfuric group.
Priority Claims (1)
Number |
Date |
Country |
Kind |
10-071825 |
Mar 1998 |
JP |
|
Parent Case Info
This application is a divisional of prior application Ser. No. 09/271,369, filed Mar. 18, 1999.
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