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    • 1. 发明授权
    • Recording material
    • 录音材料
    • US4981835A
    • 1991-01-01
    • US385508
    • 1989-07-27
    • Ken IwakuraNaoto YanagiharaTakayuki Hayashi
    • Ken IwakuraNaoto YanagiharaTakayuki Hayashi
    • B41M5/337
    • B41M5/3375
    • A recording material comprising an electron donating colorless dye and an electron accepting compound is disclosed, the recording material further comprising, as a heat-fusible substance, a benzyl ether derivative represented by formula (I): ##STR1## wherein R represents a halogen atom or a substituted or unsubstituted alkoxy group; and when R is a substituted or unsubstituted alkoxy group, X, Y and Z, which may be same or different, each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group or a halogen atom; and when R is a halogen atom, X represents a substituted or unsubstituted alkoxy group, and Y and Z each represents a hydrogen atom.The recording material exhibits improved color developability and color forming sensitivity.
    • 公开了一种包含给电子性无色染料和电子接受性化合物的记录材料,该记录材料还包含作为热熔性物质的式(I)表示的苄基醚衍生物:其中R表示 卤素原子或取代或未取代的烷氧基; 当R为取代或未取代的烷氧基时,可以相同或不同的X,Y和Z各自表示氢原子,取代或未取代的烷基,取代或未取代的烷氧基或卤素原子; 当R为卤素原子时,X表示取代或未取代的烷氧基,Y和Z各自表示氢原子。 记录材料表现出改进的显色性和成色灵敏度。
    • 5. 发明授权
    • Optical image-recording material
    • 光学图像记录材料
    • US5051333A
    • 1991-09-24
    • US541865
    • 1990-06-21
    • Naoto YanagiharaKen IwakuraTosiaki EndoKeiso Saeki
    • Naoto YanagiharaKen IwakuraTosiaki EndoKeiso Saeki
    • G03C1/00G03F7/004
    • G03C1/002G03F7/002
    • An optical image-recording material comprising:(a) microcapsules, in which at least one leuco dye capable of forming a color by oxidation and at least one photo-oxidizing agent are enclosed together, and (b) at least one reducing agent not enclosed in the microcapsules, or(c) microcapsules, in which at least one reducing agent is enclosed, and (d) both at least one leuco dye capable of forming a color by oxidation and at least one photo-oxidizing agent not enclosed in the microcapsules,wherein the microcapsules have capsule walls made from a material which lowers its permeability barrier to at least one component selected from the photo-oxidizing agent and the reducing agent when the capsule wall material is heated above its glass transition temperature, and the leuco dye is a xanthene compound having an N-substituted anilino group substituted by an electron attracting group.
    • 一种光学图像记录材料,包括:(a)微胶囊,其中至少一种能够通过氧化形成颜色的无色染料和至少一种光氧化剂被包封在一起,和(b)至少一种不包含的还原剂 在微胶囊中,或(c)其中封闭有至少一种还原剂的微胶囊,和(d)能够通过氧化形成颜色的至少一种无色染料和不包封在微胶囊中的至少一种光氧化剂 其中,所述微胶囊具有由将所述胶囊壁材料加热到高于其玻璃化转变温度时将其对所述光氧化剂和还原剂中的至少一种成分的透过性阻挡性降低的材料制成的胶囊壁,所述无色染料为 具有被吸电子基团取代的N-取代苯胺基的呫吨化合物。