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    • 3. 发明授权
    • Photographic elements incorporating antihalation and/or acutance dyes
    • 包含防晕和/或锐度染料的摄影元件
    • US4581325A
    • 1986-04-08
    • US693831
    • 1985-01-23
    • Jonathan P. KitchinBernard A. LeaRonald W. Burrows
    • Jonathan P. KitchinBernard A. LeaRonald W. Burrows
    • C09B23/00C09B23/01C09B23/10G03C1/825G03C1/83G03C1/76
    • C09B23/0066G03C1/832Y10S430/151Y10S430/162
    • A photographic element of the conventional wet processed type or of the dry silver type which includes an antihalation or acutance dye which absorbs in the near infrared and has a relatively low visible absorption while retaining a high extinction coefficient at .sub.max. The dye is of the general formula: ##STR1## in which: m+p=2,n is 0 or 1,s is 0 or 1,Z.sup.1 and Z.sup.2 independently represent the non-metallic atoms necessary to complete a heterocyclic nucleus of the type present in cyanine dyes,R.sup.1 and R.sup.2 independently represent an alkyl or substituted alkyl, alkenyl, substituted alkenyl or aralkyl group of up to 20 carbon atoms,R.sup.3 and R.sup.4 independently represent a hydrogen atom or an alkyl, substituted alkyl, alkenyl or substituted alkenyl group of up to 10 carbon atoms,R.sup.5, R.sup.6, R.sup.7 and R.sup.8, which together may not contain more than 12 carbon atoms, independently represent a hydrogen atom, an alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl or alkaryl group, orone of R.sup.5 and R.sup.6 together with one of R.sup.7 and R.sup.8 represent the necessary atoms to complete a carbocyclic ring in which case the others of R.sup.5 to R.sup.8 are absent,Q.sup.1 and Q.sup.2 together represent the non-metallic atoms necessary to complete an acidic nucleus of the type present in oxonol or merocyanine dyes.
    • 常规湿法处理类型或干银型的照相元件,其包括在近红外吸收并且具有相对低的可见吸收同时保持最大消光系数的防晕或吸收性染料。 染料具有以下通式:其中:m + p = 2,n为0或1,s为0或1,Z1和Z2独立地表示非金属原子 完成花青染料中存在的类型的杂环核,R1和R2独立地表示至多20个碳原子的烷基或取代的烷基,链烯基,取代的烯基或芳烷基,R3和R4独立地表示氢原子或烷基,被取代的 最多10个碳原子的烷基,烯基或取代的烯基,一起不超过12个碳原子的R5,R6,R7和R8独立地表示氢原子,烷基,取代的烷基,烯基,取代的烯基, 芳基或烷芳基,或R 5和R 6中的一个与R 7和R 8中的一个代表完成碳环的必要原子,在这种情况下,R5至R8中的其它基团不存在,Q1和Q2一起代表必需的非金属原子 以完成oxono中存在的类型的酸性核 或部花青染料。