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    • 2. 发明授权
    • Dry transfer sheets
    • 干转印纸
    • US4041204A
    • 1977-08-09
    • US434595
    • 1974-01-18
    • Martin HepherJohn Arthur SperryMalcolm John Stewart
    • Martin HepherJohn Arthur SperryMalcolm John Stewart
    • G03F7/004B44C1/17G03C11/12G03F7/34B32B3/00B32B7/06
    • B44C1/1733G03C11/12G03F7/346Y10S428/914Y10T428/24802Y10T428/24835Y10T428/24843Y10T428/2486
    • A photosensitive sheet product which enables dry transfer sheets to be made very simply by a process involving photographic exposure, water-washing to remove unexposed parts of the photosensitive material and drying. The photo-sensitive material itself contains the resin or other adhesive present in the letters or other transferable images and the problem of the adhesiveness which would be apparent in the transferred characters or pictorial matter in the product is solved by making the dry transfer sheet with a temporary keycoat which transfers with the characters or pictorial matter and remains as a protective layer on the finished product. Another advantageous feature of the dry transfer sheets described is that they can be formulated so as to be pressure-transferable in the normal way or alternatively can be heated or solvent-treated to exhibit a permanently increased adhesiveness, making broad-area transfer possible using much lower transfer pressures than required in normal use.
    • 通过涉及照相曝光,水洗以除去感光材料的未曝光部分并进行干燥的方法,可以非常简单地制造干转印片材的感光片产品。 感光材料本身包含存在于字母或其他可转印图像中的树脂或其它粘合剂,并且在产品中转印的字符或图形物质中将显而易见的粘合性问题通过使干燥转印片材具有 临时钥匙层,与字符或图案物质一起转移并保留在成品上的保护层。 所述的干转移片的另一个有利特征是它们可以配制成可以以正常方式进行压力转移,或者可以被加热或溶剂处理以显示永久增加的粘附性,从而可以使用大量的区域转移 低于正常使用所需的转印压力。