摘要:
Reactive dyestuff mixtures containing one or more monochlorotriazine dyestuffs of the formula (1) ##STR1## and one or more monofluorotriazine dyestuffs of the formula (2) ##STR2## in which the substituents have the meaning given in the description, show on-tone exhaustion onto fibres and are fixed uniformly even under different fixation conditions.
摘要:
Azo dyestuffs of the formula ##STR1## having the substituent meanings given in the description, are outstandingly suitable for dyeing and printing materials containing hydroxyl groups and amide groups.
摘要:
Reactive dyestuffs of the formula ##STR1## and the meanings of substituents given in the description produce on hydroxyl- and amido-containing fibre materials orange dyeings which are fast to boiling.
摘要:
An azo dyestuff of the formula ##STR1## in which u and v=H or SO.sub.3 H and u.noteq.v,R=H, unsubstituted C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkyl substituted by OH, halogen, SO.sub.3 H or OSO.sub.3 H,m=0 or 1 and ##STR2## in which R.sub.1 =H, unsubstituted C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkyl substituted by OH, OSO.sub.3 H, SO.sub.3 H or COOH. Such dye is particularly suitable for producing on cotton red dyeings and prints having excellent fiber-dyestuff bond stability, stability to oxidizing agents and wash-off properties.
摘要:
A process for preparing the sulphone of the formula ##STR1## consists in reductive cleavage of disazo/disazoxy dyestuffs of the formula ##STR2## in which B is a direct bond or a bridging member andv, w, x, y, independently of one another, are 0 or 1,x+y being 0 or 1 and v+w being 0 or 1.
摘要:
The reactive dyes of the formula ##STR1## in which the substituents and indices have the meaning given in the description, are outstandingly suitable for dyeing or printing naturally occurring or synthetic materials containing hydroxyl or amide groups.
摘要:
A new process for the preparation of substituted 2,4-diamino-6-flurotriazines of the formula ##STR1## in which the substituents have the meanings given in the description, comprises reacting ammonium salts of the formula ##STR2## in an aqueous medium at pH values of about 2.5-10 with 2,4,6-trifluorotriazine in a continuous process. The reaction products can be converted to dyestuffs without isolating the intermediates.
摘要:
Process for the preparation of 1-aminobenzene-2-sulphonic acids of the formula ##STR1## wherein R.dbd.H or a substituent andn=1-4,and their salts, in particular their alkali metal salts, by oxidation of compounds of the formula ##STR2## wherein R.sub.1 .dbd.H, a cation, in particular an alkali metal cation, or a radical of the formula ##STR3## characterized in that the oxidation is carried out in a weakly acidic to alkaline pH range. The process can also be carried out as a one-pot process, using the corresponding benzothiazoles as starting materials.
摘要:
Use of mono-copper complexes of dyestuffs of the formula ##STR1## wherein X is H or SO.sub.3 H andR is H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, halogen or sulpho,and of mixtures thereof with the bis-copper complexes of (II) in amounts of up to 50% by weight, for dyeing natural and synthetic materials, in particular cellulose materials, leather, wool and polyamide.
摘要:
Dyes containing a 5,6-difluoropyrimidin-4-yl radical as fiber-reactive group are useful for dyeing hydroxy- and/or carboxamido-containing material, including fiber material, for example cellulose fibers, wool and polyamide.