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    • 3. 发明授权
    • Thermal transfer printer, dyesheet and method of operation
    • 热转印机,染料片和操作方法
    • US06778200B2
    • 2004-08-17
    • US10466677
    • 2003-11-03
    • Richard Anthony Hann
    • Richard Anthony Hann
    • G41J3516
    • B41J31/05B41J35/36
    • A thermal transfer printer includes three light emitting diodes (7, 8, 9) emitting red, green and blue light respectively, and respective detectors (10, 11, 12) mounted on the opposite side of a dyesheet (1) passing through the printer. The detectors (10, 11, 12) detect the light absorption ratios of three colour print panels (Y, M and C) of the dyesheet, and these detected ratios are compared with acceptable ranges of light absorption ratios. If the detected light absorption ratio for any colour falls outside the corresponding range, use or further use of the dyesheet in the printer is prevented, for example by disabling an essential function of the printer or ejecting the dyesheet from the printer.
    • 热转印打印机包括分别发射红,绿和蓝光的三个发光二极管(7,8,9)和安装在通过打印机的染料片(1)的相对侧上的相应检测器(10,11,12) 。 检测器(10,11,12)检测染料片的三个彩色印刷板(Y,M和C)的光吸收率,并将这些检测的比率与可接受的光吸收率范围进行比较。 如果检测到的任何颜色的光吸收比落在相应的范围之外,例如通过禁用打印机的基本功能或从打印机中排出染料,可以防止打印机中的染料片的使用或进一步使用。
    • 4. 发明授权
    • Thermal transfer printing
    • 热转印
    • US07286150B2
    • 2007-10-23
    • US10508323
    • 2003-03-21
    • Richard Anthony Hann
    • Richard Anthony Hann
    • B41J2/325
    • B41M5/385B41M3/008B41M3/06B41M3/144B41M5/38257B41M5/38264
    • A method of printing a fluorescent image on a surface of a receiver medium comprises forming on the surface by a thermal dye transfer printing process a first image of a first fluorescent dye; and forming on the first image by a thermal dye transfer printing process a superimposed second image of a second fluorescent dye, the first and second dyes having different emission maxima. The method thus enables production of a non-monochrome fluorescent image (that can be substantially invisible in daylight but that is revealed on irradiation with ultraviolet (UV) light) that can be of substantially better quality than those produced by mass transfer printing processes. The method preferably involves the use of three different fluorescent dyes, for improved color image quality. The invention also provides thermal transfer media suitable for use in the method and the resulting printed material bearing a fluorescent image.
    • 在接收介质的表面上印刷荧光图像的方法包括通过热染料转印印刷工艺在表面上形成第一荧光染料的第一图像; 并且通过热染料转印印刷工艺在第一图像上形成第二荧光染料的叠加的第二图像,所述第一和第二染料具有不同的发射最大值。 因此,该方法使得能够生产非单色荧光图像(其在日光下基本上不可见,但是在紫外线(UV)照射下显示),其质量可以比通过质量转印印刷方法所产生的质量好得多。 该方法优选地涉及使用三种不同的荧光染料,以提高彩色图像质量。 本发明还提供适于在该方法中使用的热转印介质和产生带有荧光图像的印刷材料。
    • 9. 发明授权
    • Laser dye thermal transfer printing
    • 激光染料热转印
    • US5864356A
    • 1999-01-26
    • US617799
    • 1996-06-10
    • Kenneth West HuttRichard Anthony HannHa Cong Viet Tran
    • Kenneth West HuttRichard Anthony HannHa Cong Viet Tran
    • B41J2/32G06K15/02B41J2/47G01D15/14
    • G06K15/029
    • A scanning laser beam heats selected regions of a dye donor ribbon to transfer dye to a receiver sheet to form an image therein. The beam scan rate and delay time between the start of successive pulses is set so that adjacent heated pixel regions overlap and so that a significant amount of residual heat from a first printed pixel is still present when heat is applied to the next adjacent pixel. The use of this residual heat improves the printing efficiency. An elliptical beam may have its major axis in the scan direction to facilitate overlap. Printing may be effected to a non-square grid with more information, or a repetition of information, a set number of times in the scan direction. The power applied to a pixel may be adjusted depending on the darkness of previous adjacent printed pixels.
    • PCT No.PCT / GB94 / 01986 Sec。 371日期1996年6月10日 102(e)1996年6月10日PCT 1994年9月12日PCT PCT。 出版物WO95 / 07514 日期1995年3月16日扫描激光束加热染料供体带的选定区域以将染料转移到接收片以在其中形成图像。 设置连续脉冲开始之间的光束扫描速率和延迟时间,使得相邻的加热像素区域重叠,并且当向下一个相邻像素施加热时,来自第一印刷像素的大量剩余热量仍然存在。 使用这种残留热量可以提高打印效率。 椭圆形光束可以在扫描方向上具有其长轴以便于重叠。 可以对具有更多信息或重复信息的非正方形网格进行打印,该扫描方向上设定次数。 可以根据先前相邻的印刷像素的黑暗来调整施加到像素的功率。