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    • 5. 发明申请
    • Red fluorescent inks for bar code printing
    • 用于条码打印的红色荧光油墨
    • US20080149894A1
    • 2008-06-26
    • US11644532
    • 2006-12-22
    • Judith D. AuslanderRichard A. BernardShunichi HigashiyamaMichiko Aoyama
    • Judith D. AuslanderRichard A. BernardShunichi HigashiyamaMichiko Aoyama
    • C09K11/06B41J2/01
    • C09D11/328
    • New ink-jet printing inks provide red printed images with high-intensity fluorescence emission and are capable of printing images that can be used for high density bar code applications (2D bar codes) having high readability. The inks are aqueous and capable of producing machine-readable markings exhibiting fluorescence when exposed to fluorescent-exciting radiation. They exhibit a peak of fluorescence between about 500 nm and about 700 nm and a fluorescent strength of the ink diluted by 100 times of more than about 70 by excitation of ultraviolet radiation. The inks exhibit a peak of absorbance of between about 400 nm and about 600 nm, and an absorbance of the ink diluted by 100 times and measured in 1 mm cell of more than about 0.6. The preferred inks are characterized by a color of the ink diluted by 100 times with water and measured in 1 mm cell is t L*: about 80±10, a*: about 45±20, b*: about 20±35 and a color of the printed image of L*: about 65±10, a*: about 55±10, b*: about 5±20. Compositionally, the preferred inks are comprised of a dye selected from the group consisting of C.I. Acid Red 52, C.I. Acid Red 87 and C.I. Acid Red 92. In some preferred inks, the absorption coefficient to paper is between about 0 mL/m2sec1/2 and about 130 mL/m2sec1/2 by the measurement of the Bristow method.
    • 新的喷墨印刷油墨提供具有高强度荧光发射的红色印刷图像,并且能够打印可用于具有高可读性的高密度条形码应用(2D条形码)的图像。 油墨是水性的,并且能够产生当暴露于荧光激发辐射时显示荧光的机读标记。 它们表现出约500nm至约700nm之间的荧光峰值,并且通过紫外线辐射的激发使得油墨的荧光强度被稀释为大于约70的100倍。 油墨的吸光度峰值在约400nm至约600nm之间,并且油墨的吸光度被稀释100倍,并且在1mm单元格中测量的吸光度大于约0.6。 优选的油墨的特征在于用水稀释100倍的油墨的颜色,并且在1mm细胞中测量为t L *:约80±10,a *:约45±20,b *:约20±35和 L *的印刷图像的颜色:约65±10,a *:约55±10,b *:约5±20。 在组成上,优选的油墨由选自C.I. 酸性红52,C.I。 酸性红87和C.I. 酸性红92.在一些优选的油墨中,对纸的吸收系数为约0mL / m 2 / sec 1/2至约130mL / m 2 通过Bristow方法的测量,秒<1/2>
    • 9. 发明申请
    • Red fluorescent inks that change properties after being processed
    • 红色荧光油墨在处理后会改变其性能
    • US20080148837A1
    • 2008-06-26
    • US11644629
    • 2006-12-22
    • Judith D. AuslanderRichard A. BernardShunichi HigashiyamaMichiko Aoyama
    • Judith D. AuslanderRichard A. BernardShunichi HigashiyamaMichiko Aoyama
    • C09D11/00B41F31/00G01N17/00
    • C09D11/50C09D11/32
    • Ink-jet inks and methods for security and anti counterfeiting utilities are described. The inks are fluorescent with a particular characterizing emission when illuminated with ultraviolet or other interrogating light and then fluoresce with a different characteristic upon illumination with bright light such as from a copying machine. The inks comprise a fluorescent dye, an aqueous liquid vehicle comprising water and organic solvents in sufficient amounts to achieve an ink viscosity and surface tension effective for application of the ink to a substrate in a predetermined pattern by ink-jet printing, wherein the inks are characterized in that after exposing under Xenon lamp of 3,150,000 J/m2, the fluorescent strength of the ink diluted 100 times existing between about 500 nm and about 700 nm by excitation of ultraviolet radiation, decreases by at least about 50%. Desirably, the absorbance of the ink is between about 400 nm and about 600 nm and the ink loses fluorescence when subjected to ultraviolet radiation and/or visible radiation. The examples illustrate inks comprised of a dye selected from the group consisting of C.I. Acid Red 52, C.I. Acid Red 87, C.I. Acid Red 92 and C.I. Acid Red 1; water; and organic, polar solvent(s).
    • 描述了用于安全和防伪用途的喷墨油墨和方法。 当用紫外线或其他询问光照射时,油墨是具有特定特征的发射的荧光,然后在诸如从复印机的明亮光照射时以不同的特性发出荧光。 油墨包括荧光染料,水性液体载体,其含有足够量的水和有机溶剂,以实现通过喷墨印刷以预定图案将油墨施加到基材上的油墨粘度和表面张力,其中油墨是 其特征在于,在3,150,000J / m 2的氙灯下曝光后,通过紫外线辐射的激发在约500nm至约700nm之间稀释100倍的墨水的荧光强度至少降低 约50%。 理想地,墨水的吸光度在约400nm至约600nm之间,并且当经受紫外线辐射和/或可见光辐射时墨水失去荧光。 实施例说明了由选自C.I. 酸性红52,C.I。 酸性红87,C.I. 酸性红92和C.I. 酸性红1; 水; 和有机极性溶剂。