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    • 6. 发明授权
    • Liquid developer for electrostatic photography
    • 用于静电摄影的液体开发商
    • US5055369A
    • 1991-10-08
    • US325795
    • 1989-03-20
    • Eiichi KatoHiroshi IshibashiKazuo Ishii
    • Eiichi KatoHiroshi IshibashiKazuo Ishii
    • G03G9/12G03G9/13
    • G03G9/133G03G9/131
    • A liquid developer for electrostatic photography is disclosed. The liquid developer comprises a resin dispersed as grains in a non-aqueous solvent having an electrical resistance of 10.sup.9 .OMEGA.cm or more and a dielectric constant of 3.5 or less, which is characterized in that the dispersed resin grains are copolymer resin grains obtained by polymerizing a solution containing at least one monofunctional monomer (A) which is soluble in the non-aqueous solvent but becomes insoluble therein after polymerization and at least one monofunctional macromonomer (B) which is composed of a polymer moiety having a repeating unit of the following formula (I) and a copolymerizable double bond-containing group of the following formula (II) bonded to only one terminal of the main chain of the polymer moiety and which has a number average molecular weight of 1.times.10.sup.4 or less, in the presence of a resin which is soluble in the non-aqueous solvent and which contains no graft group capable of polymerizing with the monomers; ##STR1## In formula (I), X represents --COO--, --OCO--, --CH.sub.2 OCO--, --CH.sub.2 COO--, --O--, --SO.sub.2 --, ##STR2## R.sub.1 represents a hydrogen atom or a hydrocarbon group having from 1 to 18 carbon atoms;Y represents a hydrocarbon group having from 1 to 22 carbon atoms;a.sub.1 and a.sub.2 each represents a hydrocarbon atom, a halogen atom, a cyano group, a hydrocarbon group having from 1 to 8 carbon atoms, a group --COO--Z or a group --COO--Z as interrupted by a hydrocarbon group having from 1 to 8 carbon atoms; andZ represents a hydrocarbon group having from 1 to 18 carbon atoms;In formula (II), V has the same meaning as X in formula (I); andb.sub.1 and b.sub.2 each is selected from the same groups as a.sub.1 or a.sub.2 in formula (I).The liquid developer has excellent re-dispersibility, storability, image reproducibility, and fixability.
    • 8. 发明授权
    • Method for color photographic processing
    • 彩色照相处理方法
    • US4144068A
    • 1979-03-13
    • US873750
    • 1978-01-30
    • Hiroshi IshibashiNobuo SakaiKiyoshi ImaiJunya Nakajima
    • Hiroshi IshibashiNobuo SakaiKiyoshi ImaiJunya Nakajima
    • G03C7/42G03C5/50G03C5/32
    • G03C7/421
    • In a method of processing an image-wise exposed silver halide color photographic material by applying thereto at least a color development processing and a silver removal processing (including performing a bleaching and a fixing separately or simultaneously, (e.g., a blixing)), the improvement which comprises processing, after the color development processing, the silver halide color photographic material with a processing bath containing a compound, as a bleach accelerator, represented by the following general formula (I): ##STR1## wherein R represents an --NR.sup.4 R.sup.5 group, an --O--R.sup.6 group or an --S--R.sup.6 group; R.sup.6 represents an atomic group necessary for forming a ring together with R.sup.1 ; R.sup.1, R.sup.4 and R.sup.5, which may be the same or different, each represents a hydrogen atom or an alkyl group; R.sup.2 and R.sup.3, which may be the same or different, each represents a hydrogen atom or a methyl group; n represents 1 or 2; X represents an amino group, a hydroxyl group, a --COO(M).sub.m group or an --SO.sub.3 (M).sub.m group; M represents a cation rendering the compound water soluble; and m represents 0 or 1 and is 0 when the compound forms an inner salt; the nitrogen atom bound to R.sup.1 may be quaternized with the charge of the quaternized nitrogen atom being neutralized by an acid group and R.sup.1 may form a ring together with R.sup.4 or R.sup.5 ; with the processing bath being used prior to or as a bleach bath or a blix bath, each containing a ferric ion complex as a bleaching agent.
    • 在通过对其进行至少显色处理和除银处理(包括分别或同时执行漂白和固定(例如,混合))的方法来处理成像曝光的卤化银彩色照相材料的方法中, 改进之处在于,在显色处理之后,用含有下述通式(I)表示的漂白促进剂的化合物的处理槽处理卤化银彩色照相材料:其中R表示 -NR4R5基团,-O-R6基团或-S-R6基团; R6表示与R1一起形成环所必需的原子团; R 1,R 4和R 5可以相同或不同,各自表示氢原子或烷基; R 2和R 3可以相同或不同,各自表示氢原子或甲基; n表示1或2; X表示氨基,羟基,-COO(M)m基或-SO 3(M)m基; M表示化合物水溶性的阳离子; 当化合物形成内盐时,m表示0或1,为0; 与R1结合的氮原子可以被季铵化,季铵化氮原子的电荷被酸基中和,R1可以与R4或R5一起形成环; 在处理浴之前使用或作为漂白浴或混合浴使用,每个含有铁离子络合物作为漂白剂。