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497 条记录 (耗时 0.014 秒)

    Washout-preservative for lithographic printing plates
    151.
    发明授权
    Washout-preservative for lithographic printing plates 失效
    用于平版印刷板的抹布防腐剂

    公开(公告)号：US3679479A

    公开(公告)日：1972-07-25

    申请号：US3679479D

    申请日：1970-01-07

    申请人： EASTMAN KODAK CO

    发明人： RAY DONALD A ,  ARNOLD RICHARD E

    IPC分类号： B41N3/08 ,  B08B3/08 ,  C23G5/02

    CPC分类号： B41N3/08

    摘要： A WASHOUT-PRESERVATIVE FOR REMOVING A FULL CHARGE OF INK FROM A LITHORGRAPHIC PRINTING PLATE AND CONDITIONING AND PROTECTING THE PRINTING PLATE DURING HOLOVER BETWEEN PRESS RUNS OF FROM SEVERAL HOURS TO SEVERAL WEEKS COMPRISES A HYDROPHILIC COLLOID DESENSITIZER, AN INK SOLVENT, AND AN IMAGE CONDITIONER. THE COMPOSITIONS CAN CONTAIN SURFACTANTS AND OTHER ADDENDA.

    Ferrocyanide-chelate conversion solution for electrophotographic offset masters
    152.
    发明授权
    Ferrocyanide-chelate conversion solution for electrophotographic offset masters 失效
    用于电子照相偏差大师的FOCOCANANIDE-CHELATE变换解决方案

    公开(公告)号：US3672885A

    公开(公告)日：1972-06-27

    申请号：US3672885D

    申请日：1970-10-23

    申请人： DICK CO AB

    发明人： ORT GEORGE M

    IPC分类号： B41N3/08 ,  G03G13/00

    CPC分类号： B41N3/08

    摘要： A CONVERSION SOLUTION FOR ZINC OXIDE COATED ELECTROPHOTOGRAPHIC PLANOGRAPHIC MASTERS IN WHICH THE CONVERSION SOLUTION DEPENDS UPON THE PRESENCE OF FERROCYANIDE IN SOLUTION THEREIN, IN WHICH THE IMPROVEMENT COMPRISES THE FORMUALTION OF THE CONVESION SOLUTION WITH A CHELATING AGENT THAT SEQUESTERS THE FE++ AND FE++ IONS PRESENT IN THE SOLUTION BY REASON OF THE EQUILIBRIUM REACTION OF THE FERROCYANIDE WHEEBY THE SOLUTION IS STABLILIZED TO MINIMIZE DETERIORATION AND INCREASE THE STABILITY AND SHELF LIFE THEREOF.

    Preparation of a single-metal printing plate with iminoquinone diazide involving development and decoating with alkaline aqueous solution of different strength
    153.
    发明授权
    Preparation of a single-metal printing plate with iminoquinone diazide involving development and decoating with alkaline aqueous solution of different strength 失效
    单一金属印刷板的制备涉及发展和分解与不同强度的碱性水溶液的二氧化氮

    公开(公告)号：US3669659A

    公开(公告)日：1972-06-13

    申请号：US3669659D

    申请日：1969-07-28

    申请人： KALLE AG

    发明人： UHLIG FRITZ ,  BRAUN JURGEN

    IPC分类号： B41N3/08 ,  G03F7/022 ,  G03F7/02

    CPC分类号： G03F7/0223 ,  B41N3/08

    摘要： THIS INVENTION RELATES TO A PROCESS FOR THE PREPARATION OF A SINGLE METAL PRINTING PLATE FROM A REPRODUCTION MATERIAL COMPRISING A METALLIC SUPPORT AND A LIGHT-SENSITIVE LAYER THEREON WHICH CONTAINS AN IMINOQUINONE DIAZIDE OF THE FOLLOWING FORMULA

    1-(R-O2S-N=),2-(Y-N(-X)-SO2-),4-(N*N=),R''-2,5-

    CYCLOHEXADIENE

    WHEREIN

    R IS ARYL OR SUBSTITUTED ARYL, X IS HYDROGEN OR ALKYL, OR FORMS A POLYMETHYLENE IMINE GROUP WITH Y AND THE N ATOM TO WHICH X AND Y ARE ATTACHED, Y IS ALKYL, ARYL, SUBSTITUTED ARYL, OR PART OF THE AFOREMENTIONED POLYMETHYLENE IMINE GROUP, AND R'' IS HYDROGEN, HALOGEN, ALKYL OR ALKOXY,

    AND A RESIN WHICH IS SOLUBLE IN AN AQUEOUS ALKALI SOLUTION, IN WHICH PROCESS THE REPRODUCTION MATERIAL IS IMAGE-WISE EXPOSED UNDER AN ORIGINAL AND DEVELOPED BY MEANS OF A WEAKLY ALKALINE, AQUEOUS SOLUTION, THEREBY BARING THOSE AREAS OF THE SUPPORT WHICH CORRESPOND TO THE NON-TRANSPARENT AREAS OF THE ORIGINAL. AFTER EXPOSURE AND DEVELOPMENT, THE REPRODUCTION MATERIAL IS COATED WITH AN ALKALIRESISTANT LACQUER AND THEN DECOATED WITH A SOLUTION WHICH IS MORE STRONGLY ALKALINE THAN THE SOLUTION USED FOR DEVELOPMENT, THEREBY BARING THE AREAS OF THE SUPPORT WHICH WERE UNDER THE TRANSPARENT AREAS OF THE ORIGINAL DURING EXPOSURE, WHILE THE AREAS CORRESPONDING TO THE NON-TRANSPARENT AREAS OF THE ORIGINAL REMAIN LACQUERED.

    Lithographic plate finishers and cleaners
    154.
    发明授权
    Lithographic plate finishers and cleaners 失效
    LITHOGRAPHIC PLATE FINISHERS和CLEANERS

    公开(公告)号：US3627685A

    公开(公告)日：1971-12-14

    申请号：US3627685D

    申请日：1969-08-28

    申请人： DU PONT

    发明人： LAM FRANK MAN-KAM

    IPC分类号： B41N3/08 ,  C11D7/60 ,  C11D7/54

    CPC分类号： B41N3/08

    摘要： This invention relates to the treatment and maintenance of lithographic printing plates. More specifically, it is concerned with finishing, cleaning, and dampening lithographic plates with aqueous solutions containing an alkali metal-polyphosphate and an inorganic oxidant to render the same more efficient.