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公开(公告)号：EP4098454A1
公开(公告)日：2022-12-07
申请号：EP21759557.8
申请日：2021-02-08
摘要： Provided is a thermosensitive recording medium being excellent in oil resistance among various performances required for the thermosensitive recording medium, and being further excellent in heat resistance, plasticizer resistance, and printing (recording) run-ability.
That is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains at least two kinds of urea compounds. The two kinds of urea compounds comprise the first urea compound being represented by the following general formula 1, and the second urea compound being represented by the following general formula 2.
wherein R 1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R 2 represents a hydrogen atom or an alkyl group,
wherein R 4 to R 8 represent a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an alkoxy group, an aryloxy group, and the like, and m represents an integer of 0 to 2.-
公开(公告)号：EP3680111A1
公开(公告)日：2020-07-15
申请号：EP18854024.9
申请日：2018-08-31
摘要： An inkjet recording medium, comprising an ink-receiving layer containing an inorganic pigment, a binder, an inkjet ink-fixing agent comprising a cationic compound, and organic spherical particles disposed on at least one surface of a base paper, wherein the ink-receiving layer further contains a water-soluble metal salt and 5 parts by weight or more to 15 parts by weight or less of polyvinyl alcohol (A) with a polymerization degree of 700 or less and 20 parts by weight or more to 40 parts by weight or less of polyvinyl alcohol (B) with a polymerization degree of 1200 or more as the binder with respect to 100 parts by weight of the ink-receiving layer; and a volume 50% average particle diameter (D50) as measured by a laser diffraction/scattering method of the organic spherical particles is 15.0 µm or more.
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公开(公告)号：EP4043229A1
公开(公告)日：2022-08-17
申请号：EP20886257.3
申请日：2020-11-11
摘要： Provided is a thermosensitive recording medium having excellent oil resistance among various performances required for the thermosensitive recording medium. The thermosensitive recording medium has a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains N-[2-(3-phenylureido)phenyl] benzenesulfonamide and an urea-based compound represented by the general formula 1 as the electron accepting color developing agents,
wherein R 1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R 2 represents a hydrogen atom or an alkyl group.
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