Photographic material and process comprising a pyrazolotriazole coupler
申请人:EASTMAN KODAK COMPANY
公开号:EP0558146A1
公开(公告)日:1993-09-01
Pyrazolotriazole couplers having a ballast-containing group of the formula (I) attached to the pyrazolotriazole ring group
wherein:
R, R², Ra and Rb represent hydrogen or a substituent;
L is a divalent linking group connecting the ballast containing group to the pyrazolotriazole ring;
L' is a linking group connecting the -BD group to the phenylene ring;
n is 0 or 1;
B represents -N(Rc)-SO₂-, wherein Rc represents hydrogen or a substituent; and
D represents substituted or unsubstituted alkyl are useful in silver halide photographic materials and processes. The couplers exhibit increased coupling efficiency, and provide formation of dyes having improved maximum magenta image dye density when employed in color photographic materials and processes.
吡唑三唑偶联剂,其吡唑三唑环基上连接有式(I)的含碴基团
其中
R、R²、Ra 和 Rb 代表氢或取代基;
L 是连接含碴基团和吡唑三唑环的二价连接基团;
L' 是连接 -BD 基团和亚苯基环的连接基团;
n 为 0 或 1;
B 代表-N(Rc)-SO₂-,其中 Rc 代表氢或取代基;以及
D 代表取代或未取代的烷基。这些偶联剂的偶联效率更高,在彩色感光材料和工艺中使用时,可形成具有更高的最大品红图像染料密度的染料。
Ink set and method and apparatus for recording image
申请人:Yanagi Terukazu
公开号:US20070054981A1
公开(公告)日:2007-03-08
An ink set comprising an ink containing at least an organic pigment, a water-soluble organic solvent and water and a treating liquid which is applied to a recording medium before applying the ink to the recording medium and produces an agglomerate upon contact with the ink, the ink containing a low molecular weight dispersant having a molecular weight of 2000 or lower and polymer fine particles.
US4124396A
申请人:——
公开号:US4124396A
公开(公告)日:1978-11-07
US5234805A
申请人:——
公开号:US5234805A
公开(公告)日:1993-08-10
2,5-Dicarbonylaminophenol dye-forming couplers
申请人:Eastman Kodak Company
公开号:US04124396A1
公开(公告)日:1978-11-07
2,5-Dicarbonylaminophenols containing a p-alkyl-sulfonylaminophenoxy terminal moiety or a p-alkylamino-sulfonylphenoxy terminal moiety in the five-position substituent of the molecule are color-forming couplers useful in photographic silver halide emulsions and elements.