Heat-sensitive transfer material and heat-sensitive transfer recording method
AssigneeCanon Kabushiki Kaisha
InventorsNaoki Kushida, Tomoko Kusumoto
Life of this patent
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Abstract
A heat-sensitive transfer material having a heat-transferable ink layer formed on a support. Said heat-transferable ink layer is constituted of microcapsules dispersed in a heat-fusible binder and enclosing a penetrating ink. Said penetrating ink is constituted of a colorant and an oil agent which is liquid or semi-solid at room temperature. During recording, the ink released from the microcapsules will penetrate into the fibrous structure of the recording paper to give printed letters of good quality even on a recording paper with poor surface smoothness.
Claims12
A heat-sensitive transfer material comprising a support and a heat-transferable ink layer formed on said support, said heat-transferable ink layer comprising a colorant, an oil agent which is liquid or semi-solid at room temperature, a foaming agent and a heat-fusible binder, said colorant and oil agent being microencapsulated, and said foaming agent and the micro-capsules enclosing said colorant and oil agent being respectively dispersed within said heat-fusible binder.
A heat-sensitive transfer material, comprising a support and a heat-transferable ink layer formed on said support, said heat-transferable ink layer comprising magnetic powder, an oil agent which is liquid or semi-solid at room temperature, a foaming agent and a heat-fusible binder, said magnetic powder and oil agent being microencapsulated, and said foaming agent and the microcapsules enclosing the magnetic powder and oil agent being respectively dispersed in said heat-fusible binder.
A heat-sensitive transfer recording method, which comprises:
- providing a heat-sensitive transfer material and a heat-transferable ink layer formed on a support, the heat-transferable ink layer comprising a heat-fusible binder, microcapsules dispersed in a heat-fusible binder and enclosing a colorant and an oil agent which is liquid or semi-solid at room temperature, and a foaming agent dispersed in the heat-fusible binder,
- superposing the heat-sensitive transfer material on a recording medium with its heat-transferable layer facing the recording medium, and
- heating the heat-transferable layer of the heat-sensitive transfer material in a desired pattern to leave the image of the heat-transferable ink corresponding to the desired pattern on the recording medium after separation of the recording medium and the heat-sensitive transfer material.
Dependencies are inferred from the claim text.