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    • 40. 发明公开
    • A method of developing a color negative element suitable for scanning
    • Verfahren zur Entwicklung von Farb-negativelementen welche zum scannen geeignet sind
    • EP1321814A1
    • 2003-06-25
    • EP02080083.5
    • 2002-12-09
    • EASTMAN KODAK COMPANY
    • Arcus, Robert AlexanderSowinski, Allan FrancisWildman, Nigel Richard
    • G03C7/42
    • G03C7/413G03C1/0051G03C7/30G03C7/3022G03C7/3029G03C7/3041G03C7/305G03C7/30541G03C7/407G03C2007/3025G03C2007/3027G03C2007/3034G03C2200/26G03C2200/44G03C2200/52G03C2200/60
    • This invention relates to a method of forming a viewable image from a scene exposed onto a color negative photographic film element and for producing a color image suited for conversion to an electronic form and subsequent reconversion into a viewable form comprising:

      color developing an imagewise exposed color negative photographic film element with a color developer having a pH of from 9 to 12.5, and comprising:

      a color developing agent at a concentration of 0.01 to 0.1 moles per liter of solution,
      added bromide ion at a concentration of less than 0.06 moles per liter of solution,
      sulfite ion at a concentration of 0.00 to 0.25 moles per liter of solution, and
      a pH buffering agent at a concentration of 0.08 to 0.5 moles per liter of solution;
      said color development being carried out by contacting said film with the developer for a period of 20 to 90 seconds at a temperature of 40° C or greater;
      said imagewise exposed film element comprising a support and, coated on the support, a plurality of hydrophilic colloid layers, including radiation-sensitive silver halide emulsion layers, forming layer units for separately recording blue, green, and red exposures, each of the layer units containing dye image-forming coupler chosen to produce image dye having an absorption half-peak bandwidth lying in a different spectral region in each layer unit, WHEREIN
      the element comprises a development inhibitor releasing compound in at least one layer unit,
      at least one of the layer units contains two or more emulsion layers differing in sensitivity,
      the layer units each exhibit a dye image gamma of less than 1.0,
      the element exhibits an exposure latitude of at least 2.7 log E, where E is exposure measured in lux-seconds, and a light sensitivity of at least ISO 50,
      the gamma ratio of each of the red, green and blue light recording layer units is between about 0.80 and 1.30, and
      the average layer thickness is 1.5 micrometers or less.
    • 本发明涉及从暴露于彩色负片摄影胶片元件上的场景形成可视图像的方法,并且用于产生适于转换成电子形式的彩色图像,并随后重新转换为可视形式,包括:彩色显影成像曝光色 具有pH为9〜12.5的显色剂的负型摄影胶片元件,包括:浓度为每升溶液0.01至0.1摩尔的彩色显影剂,加入的浓度小于0.06摩尔/升的溴化物离子 的溶液,浓度为0.00-0.25摩尔/升溶液的亚硫酸根离子,和每升溶液浓度为0.08至0.5摩尔的pH缓冲剂; 所述显色通过在40℃或更高的温度下使所述膜与显影剂接触20至90秒的时间进行; 所述成像曝光薄膜元件包括支撑体,并且在支撑体上涂覆多个亲水胶体层,包括辐射敏感的卤化银乳剂层,形成用于分别记录蓝色,绿色和红色曝光的层单元,每个层单元 所述染料影像形成剂被选择以产生具有位于每层单元中的不同光谱区域中的吸收半峰带宽的图像染料,其中所述元件包括至少一层单元中的显影抑制剂释放化合物,至少一个 层单元包含两个或更多个灵敏度不同的乳剂层,层单元各自表现出小于1.0的染料图像γ,该元素表现出至少2.7log E的曝光宽容度,其中E是以勒克斯秒为单位测量的曝光,以及 至少ISO 50的光敏度,红色,绿色和蓝色光记录层单元中的每一个的伽马比值在约0.80和1.30之间,平均层 厚度为1.5微米以下。