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    • 76. 发明授权
    • Fluorescent water base ink for ink-jet recording
    • 用于喷墨记录的荧光水基油墨
    • US07364613B2
    • 2008-04-29
    • US11080476
    • 2005-03-16
    • Michiko AoyamaMasashi TsudaHiromitsu SagoMayuko UmemuraHideto YamazakiShunichi Higashiyama
    • Michiko AoyamaMasashi TsudaHiromitsu SagoMayuko UmemuraHideto YamazakiShunichi Higashiyama
    • C09D11/00C09D11/02
    • C09D11/50
    • A fluorescent water base ink for ink-jet recording includes water, a first fluorescent dye, and a second fluorescent dye. The first fluorescent dye absorbs light in a first absorption wavelength region in an ultraviolet region to emit fluorescence, and the first fluorescent dye absorbs light in a second absorption wavelength region to emit no fluorescence. The second fluorescent dye absorbs light in an absorption wavelength region in the ultraviolet region, which is different from the first absorption wavelength region of the first fluorescent dye, to emit fluorescence. A wavelength region of the fluorescence of the second fluorescent dye is not overlapped with the first absorption wavelength region of the first fluorescent dye, but at least a part of the wavelength region of the fluorescence of the second fluorescent dye is overlapped with the second absorption wavelength region. The fluorescence intensity of the ink is increased.
    • 用于喷墨记录的荧光水基油墨包括水,第一荧光染料和第二荧光染料。 第一荧光染料吸收紫外区域的第一吸收波长区域中的光以发射荧光,并且第一荧光染料吸收第二吸收波长区域中的光以不发射荧光。 第二荧光染料吸收与第一荧光染料的第一吸收波长区域不同的紫外区域的吸收波长区域中的光发射荧光。 第二荧光染料的荧光的波长区域与第一荧光染料的第一吸收波长区域不重叠,但第二荧光染料的荧光的波长区域的至少一部分与第二吸收波长重叠 地区。 油墨的荧光强度增加。
    • 77. 发明授权
    • Fluorescent water base ink for ink-jet recording
    • 用于喷墨记录的荧光水基油墨
    • US07192476B2
    • 2007-03-20
    • US10968893
    • 2004-10-21
    • Mayuko UmemuraMasashi TsudaHideto YamazakiHiromitsu SagoMichiko AoyamaShunichi Higashiyama
    • Mayuko UmemuraMasashi TsudaHideto YamazakiHiromitsu SagoMichiko AoyamaShunichi Higashiyama
    • C09D11/02
    • C09D11/32C09D11/50
    • A fluorescent water base ink for ink-jet recording contains a fluorescent dye having a xanthene skeleton, and a glycol. In the fluorescent dye, the difference in hydrophilic index log P is not less than 2.6 between a substituent bonded to C-9 carbon atom of the xanthene skeleton and other portion of the fluorescent dye than the substituent bonded to the C-9 carbon atom. The glycol has a distance between hydroxyl groups substantially equivalent to or longer than an interatomic distance between atoms directly bonded to C-3 and C-6 carbon atoms of the xanthene skeleton of the fluorescent dye, respectively. It is assumed that the glycol is coordinated with the xanthene skeleton in a bridge form to increase the fluorescence intensity by increasing the electron density of the xanthene skeleton. The ink having high fluorescence intensity and in which the fluorescence intensity is not lowered in a time-dependent manner is provided.
    • 用于喷墨记录的荧光水基油墨包含具有呫吨骨架的荧光染料和二醇。 在荧光染料中,与结合到C-9碳原子的取代基相比,在呫吨骨架的C-9碳原子的取代基和荧光染料的其它部分之间,亲水指数log P的差异不小于2.6。 乙二醇的荧光染料的呫吨骨架的直接与C-3和C-6碳原子直接键合的原子之间的原子间距离基本上等于或大于等于或更长的羟基之间的距离。 假设二元醇以桥形式与呫吨骨架配位,通过增加呫吨骨架的电子密度来提高荧光强度。 提供了具有高荧光强度且荧光强度不以时间依赖性降低的油墨。
    • 78. 发明申请
    • Fluorescent water base ink for ink-jet recording
    • 用于喷墨记录的荧光水基油墨
    • US20050150422A1
    • 2005-07-14
    • US10968893
    • 2004-10-21
    • Mayuko UmemuraMasashi TsudaHideto YamazakiHiromitsu SagoMichiko AoyamaShunichi Higashiyama
    • Mayuko UmemuraMasashi TsudaHideto YamazakiHiromitsu SagoMichiko AoyamaShunichi Higashiyama
    • C09D11/00
    • C09D11/32C09D11/50
    • A fluorescent water base ink for ink-jet recording contains a fluorescent dye having a xanthene skeleton, and a glycol. In the fluorescent dye, the difference in hydrophilic index log P is not less than 2.6 between a substituent bonded to C-9 carbon atom of the xanthene skeleton and other portion of the fluorescent dye than the substituent bonded to the C-9 carbon atom. The glycol has a distance between hydroxyl groups substantially equivalent to or longer than an interatomic distance between atoms directly bonded to C-3 and C-6 carbon atoms of the xanthene skeleton of the fluorescent dye, respectively. It is assumed that the glycol is coordinated with the xanthene skeleton in a bridge form to increase the fluorescence intensity by increasing the electron density of the xanthene skeleton. The ink having high fluorescence intensity and in which the fluorescence intensity is not lowered in a time-dependent manner is provided.
    • 用于喷墨记录的荧光水基油墨包含具有呫吨骨架的荧光染料和二醇。 在荧光染料中,与结合到C-9碳原子的取代基相比,在呫吨骨架的C-9碳原子的取代基和荧光染料的其它部分之间,亲水指数log P的差异不小于2.6。 乙二醇的荧光染料的呫吨骨架的直接与C-3和C-6碳原子直接键合的原子之间的原子间距离基本上等于或大于等于或更长的羟基之间的距离。 假设二元醇以桥形式与呫吨骨架配位,通过增加呫吨骨架的电子密度来提高荧光强度。 提供了具有高荧光强度且荧光强度不以时间依赖性降低的油墨。