Reversible recording medium and exterior member
AssigneeSony Corporation
InventorsAya SHUTO, Yuriko KAINO
Life of this patent
Estimating the term…
Abstract
A reversible recording medium according to an embodiment of the present disclosure includes: a recording layer including a coloring compound having an electron-donating property, a color developing/quenching agent having an electron-accepting property, a photothermal conversion agent, and a macromolecular material; and an ultraviolet absorbing layer provided on the recording layer, the macromolecular material including an organic material that has solubility of 20 wt % or more and 80 wt % or less at 25° C. or less and contains 0.5 wt % or less of chlorine atoms, fluorine atoms, and sulfur atoms in a molecule.
Claims14
A recording medium comprising:
- at least one recording layer including a coloring compound having an electron-donating property, a color developing/quenching agent having an electron-accepting property, a photothermal conversion agent, and macromolecular material,
- wherein
- the coloring compound includes a Leuco pigment,
- the photothermal conversion agent includes a photothermal conversion material having a phthalocyanine skeleton, and
- the macromolecular material is a polycarbonate that has solubility of 20 wt % or more and 80 wt % or less in 2-butanone at 25° C. or less and includes 0.5 wt % of chlorine atoms, fluorine atoms, and sulfur atoms in a molecule and not releasing an acid having an acid dissociation constant (pKa) of 3.77 or less.
A recording medium comprising:
- a recording layer including three types of microcapsules and macromolecular material,
- wherein each type of microcapsules includes a coloring compound having an electron-donating property, a color developing/quenching agent having an electron-accepting property, a photothermal conversion agent, and
- wherein the coloring compound includes Leuco pigment, the photothermal conversion agent includes photothermal conversion material having a phthalocyanine skeleton, and
- the macromolecular material is polycarbonate that has solubility of 20 wt % or more and 80 wt % or less in 2-butanone at 25° C. or less and includes 0.5 wt % of chlorine atoms, fluorine atoms, and sulfur atoms in a molecule and not releasing an acid having an acid dissociation constant (pKa) of 3.77 or less.
Dependencies are inferred from the claim text.