Thermosensitive recording medium and article
OwnerKazumasa NODA, Kenji SHIMIZU +1inventors
InventorsKazumasa NODA, Kenji SHIMIZU, Yasuhiro KADOTA
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Abstract
Provided is a thermosensitive recording medium including a support, and a thermosensitive recording layer provided over at least one surface of the support and containing a leuco dye and a developer, wherein the developer includes 4-hydroxy-4′-benzyloxydiphenylsulfone and a diphenylsulfone compound represented by general formula (1), and wherein a content of the diphenylsulfone compound represented by general formula (1) is less than 3.0 parts by mass relative to 1.0 part by mass of the 4-hydroxy-4′-benzyloxydiphenylsulfone.
Claims12
A thermosensitive recording medium, comprising:
- a support;
- and
- a thermosensitive recording layer that is provided over at least one surface of the support and comprises a leuco dye, a first developer, and a second developer,
- wherein the first developer and the second developer are 4-hydroxy-4′-benzyloxydiphenylsulfone and a diphenylsulfone compound of formula (1), respectively, and
- wherein a content of the diphenylsulfone compound is less than 3.0 parts by mass relative to 1.0 part by mass of the 4-hydroxy-4′-benzyloxydiphenylsulfone,
- where R3 represents any one of a hydrogen atom, a halogen atom, an alkyl group that comprises from 1 through 6 carbon atoms, and an alkenyl group that comprises from 1 through 6 carbon atoms, each o independently represents an integer of from 0 through 4, p represents an integer of from 1 through 11, and R4 represents any one of a saturated or unsaturated, straight-chained or branched hydrocarbon group that comprises from 1 through 12 carbon atoms and optionally comprises an ether bond, a substituted phenylene group of formula (1-1), and a divalent group of formula (1-2),
- where R5 represents any one of a methylene group and an ethylene group,
- where R6 represents any one of a hydrogen atom and an alkyl group that comprises from 1 through 4 carbon atoms.
An article, comprising:
- a thermosensitive recording medium,
- wherein the thermosensitive recording medium comprises:
- a support and
- a thermosensitive recording layer that is provided over at least one surface of the support and comprises a leuco dye, a first developer, and a second developer,
- wherein the first developer and the second developer are 4-hydroxy-4′-benzyloxydiphenylsulfone and a diphenylsulfone compound of formula (1), respectively, and
- wherein a content of the diphenylsulfone compound is less than 3.0 parts by mass relative to 1.0 part by mass of the 4-hydroxy-4′-benzyloxydiphenylsulfone,
- where R3 represents any one of a hydrogen atom, a halogen atom, an alkyl group that comprises from 1 through 6 carbon atoms, and an alkenyl group that comprises from 1 through 6 carbon atoms, each o independently represents an integer of from 0 through 4, p represents an integer of from 1 through 11, and R4 represents any one of a saturated or unsaturated, straight-chained or branched hydrocarbon group that comprises from 1 through 12 carbon atoms and optionally comprises an ether bond, a substituted phenylene group represented by the following the following general formula (1-1), and a divalent group of formula (1-2),
- where R5 represents any one of a methylene group and an ethylene group,
- where R6 represents any one of a hydrogen atom and an alkyl group that comprises from 1 through 4 carbon atoms.
Dependencies are inferred from the claim text.