Patent classifications
C
CHEMISTRY; METALLURGY
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C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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C09B
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; , e.g. PIGMENTS; MORDANTS; LAKES
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35/00
Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
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C09B35/039
characterised by the tetrazo component
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C09B35/08
the tetrazo component being a derivative of biphenyl
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C09B35/10
from two coupling components of the same type
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C09B35/18

Acid dyes, process for the production thereof and their use
09745474 · 2017-08-29 · ·

Dyes of formula (1) ##STR00001##
their production and their use are described.

Ink composition and ink set
09587129 · 2017-03-07 · ·

An ink composition includes, as dyes, a dye (Bk-1) represented by the formula (Bk-1); and a dye (Bw-1) represented by the formula (Bw-1), in which a content ratio A (dye (Bk-1):dye (Bw-1)) of the dye (Bk-1) and the dye (Bw-1) is 100:18 to 100:40.