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Patent Searching and Data


Title:
MONOAZO PIGMENT AND COLORING MATERIAL
Document Type and Number:
Japanese Patent JP2005194493
Kind Code:
A
Abstract:

To provide a monoazo pigment having a color tone of a carmine 6B pigment and capable of being widely utilized for color reproduction by tone reduction mixing, without containing rosin, by solving such a problem that use of a large amount of the rosin in a conventional pigment is necessary and indispensable for obtaining the highly transparent color tone given by the carmine 6B pigment and exhibiting high color-rendering properties in the color reduction mixing, and to provide a coloring material by using the same.

This monoazo pigment is provided by combinedly conducting synthesis of the carmine 6B pigment and synthesis of a naphthol AS-based insoluble monoazo pigment, so as to conduct pigmentation at the same time. The coloring material is provided by using the pigment.


Inventors:
AKASAKI YUTA
Application Number:
JP2004183105A
Publication Date:
July 21, 2005
Filing Date:
May 26, 2004
Export Citation:
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Assignee:
DAIDO KASEI KOGYO KK
International Classes:
C09B67/20; C09B29/15; C09B29/20; C09B63/00; C09B67/22; (IPC1-7): C09B67/20; C09B29/15; C09B29/20; C09B63/00; C09B67/22