THERMAL RECORDING BODY AND IMAGE FORMATION METHOD

To provide a thermal recording body which can suppress color development caused by heating after radiation of ultraviolet light even when an amount of ultraviolet light to be radiated is small.SOLUTION: There is provided a thermal recording body comprising a heat sensitive coloring layer containing...

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Bibliographische Detailangaben
Hauptverfasser:	MASUDA AYANO, OTSUKA MASANORI, ITO JUNJI, AICHI YASUHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	COLOUR PRINTING LINING MACHINES PERFORMING OPERATIONS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	To provide a thermal recording body which can suppress color development caused by heating after radiation of ultraviolet light even when an amount of ultraviolet light to be radiated is small.SOLUTION: There is provided a thermal recording body comprising a heat sensitive coloring layer containing an electron donative dye precursor, an electron acceptor compound, a polyfunctional radical polymerizable compound, a mono-functional radical polymerizable compound, and a photo-radical polymerization initiator. At least any of the polyfunctional radical polymerizable compound and the mono-functional radical polymerizable compound includes a (meth)acrylamide group.SELECTED DRAWING: Figure 1 【課題】照射する紫外線の光量が低い場合であっても、紫外線照射後の加熱による発色を抑制することが可能な感熱記録体を提供すること。【解決手段】電子供与性染料前駆体、電子受容性化合物、多官能ラジカル重合性化合物、前記単官能ラジカル重合性化合物、及び光ラジカル重合開始剤を含有する感熱発色層を備えた感熱記録体であって、前記多官能ラジカル重合性化合物及び前記単官能ラジカル重合性化合物の少なくともいずれかが（メタ）アクリルアミド基を有することを特徴とする感熱記録体。【選択図】図１