Thermosensitive recording material
AssigneeRicoh Company, Ltd.
InventorsYoshikazu Kaneko, Yasutomo Mori, Mitsuru Naruse, Kunio Hayakawa, Mitsunobu Morita
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Abstract
A thermosensitive recording material having a support, a thermosensitive recording layer containing a leuco dye and a color developer, and an intermediate layer interposed therebetween. The intermediate layer contains hollow particles having a hollowness of 60 to 98%, a maximum particle diameter (D100) of 5.0 to 10.0 μm and a ratio D100/D50 of the maximum particle diameter (D100) to the median volume equivalent particle diameter (050) in the range of 1.5 to 3.0. The hollow particles may be composed of a crosslinked polymer of a chlorine-free vinyl monomer.
Claims16
A thermosensitive recording material comprising a support, an intermediate layer provided on said support, and a thermosensitive recording layer provided on said intermediate layer and containing a leuco dye and a color developer for developing said leuco dye upon application of heat,
- wherein said intermediate layer contains a binder and hollow particles made of a crosslinked polymeric material and having a hollowness of not lower than 60% but not higher than 98%, a maximum particle diameter (D100) of 5.0 to 10,0 μm and a ratio D100/D50 of said maximum particle diameter (D100) to the median volume equivalent particle diameter (D50) in the range of 1.5 to 3.0.
A thermosensitive recording material comprising a support, an intermediate layer provided on said support, and a thermosensitive recording layer provided on said intermediate layer and containing a leuco dye and a color developer for developing said leuco dye upon application of heat, wherein said intermediate layer comprises a binder and hollow particles of a crosslinked polymeric material which does not contain a halogen atom, said hollow particles having a hollowness of not lower than 60% but not higher than 98%.
Dependencies are inferred from the claim text.