摘要:
An ink composition containing at least two kinds of water-soluble long-wavelength dyes whose absorption spectrum in an aqueous solvent has a maximum wavelength of 550 nm to 700 nm, in which at least one kind of the water-soluble long-wavelength dyes is a first water-soluble long-wavelength dye of an azo compound represented by the following Formula (1), at least one kind of the water-soluble long-wavelength dyes is a second water-soluble long-wavelength dye that is different from the first water-soluble long-wavelength dye, and the second water-soluble long-wavelength dye is a compound having two to four azo groups conjugated with each other per molecule, an ink for inkjet recording using the ink composition, and an inkjet recording method using the ink for inkjet recording using the ink for inkjet recording. Formula (1):
摘要:
Disclosed are compounds of the formula, ##STR1## wherein the X's are the same and are hydrogen or --SO.sub.3 M,Y is hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, hydroxy, halogen, --COOM or --SO.sub.3 M,K.sub.1 and K.sub.2 are the same or different and are both radicals of a coupling component,either A.sub.1 is --SO.sub.3 M and one of B.sub.1 and C.sub.1 is --SO.sub.3 M, the other being hydrogen,or A.sub.1 and C.sub.1 are both hydrogen and B.sub.1 is --SO.sub.3 M, andM is hydrogen or a non-chromophoric cation, their production and use in dyeing anionic dyeable substrates, for example, natural and regenerated cellulose, natural and synthetic polyamides, polyurethanes, polypropylene modified to contain basic groups, anodized aluminum, paper and, particularly, leather.
摘要:
Compounds of the formula (I) ##STR1## have been found which are suitable for dyeing and printing hydroxyl- and/or amido-containing substrates, in particular for printing paper by the ink-jet method.
摘要:
Polyazo dyes which in the form of the free acids correspond to the general formula I ##STR1## where D is the radical of a diazo component, or a radical of the formula ##STR2## n is 0 or 1, R.sup.1 is hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy, carboxyl, trifluoromethyl, methylsulfonyl, ethylsulfonyl or hydroxysulfonyl,R.sup.2 is hydrogen, chlorine, bromine, methyl, methoxy, carbamyl or sulfamyl,one X is hydroxyl and the other X is amino, Y is hydrogen or hydroxysulfonyl, but at least one Y is hydroxysulfonyl andZ is a radical of the formula ##STR3##
摘要:
New disazo and polyazo dyestuffs which, in the form of the free acid, correspond to the general formula ##STR1## wherein K, R, m and n have the meaning indicated in the description,the use of these dyestuffs for dyeing and printing cellulose fibre materials and leather, and concentrated solutions containing azo dyestuffs according to formula (I).
摘要:
Tetrakisazo dyes of formula (I), as defined in claim 1, optionally in admixture with trisazo dyes of formula (X) as defined in claim 4, are valuable anionic dyes for the dyeing of substrates dyeable with anionic dyes, in particular for the dyeing of leather in very intense dark shades.