摘要:
Bleed-fast, dyed cellulosics particularly absorbent papers have been obtained with a particular class of water-soluble, cationic dyes reacted with a water-soluble dialdehyde, preferably glyoxal or glutaraldehyde. An aqueous printing fluid containing the water-soluble cationic dye and the dialdehyde, upon drying, produces a water-resistant dyestuff having improved bleed fastness upon cellulosic fibers.
摘要:
A process for producing solutions of salts of lower aliphatic carboxylic acids of cationic dyestuffs which consists essentially of converting the halide, especially the chloride, of a cationic dyestuff into the salt of a lower aliphatic carboxylic acid by reacting the halide with the corresponding carboxylic acid in the presence of an epoxide compound having a maximum of 12 carbon atoms.
摘要:
Concentrated, storage-stable solutions of alkylbenzenesulfonates, with alkyl chains of 8 to 18 carbon atoms, of basic dyes, in normally liquid alcohols, glycols and glycol ethers. The solutions are particularly suitable for producing waterfast prints, colorations, script and markings.
摘要:
The invention provides novel stable, liquid dyestuff preparations comprising (a) at least one basic dyestuff of the polymethine series present in the form of a salt of an inorganic acid or of an alkylsulphuric acid in which the alkyl radical contains 1 to 4 carbon atoms, (b) at least one water-soluble organic acid and (c) gamma -butyrolactone. The preparations are useful for dyeing polyacrylonitrile, acrylonitrile copolymer, polyester and polypropylene fibres.
摘要:
A composition which is employed in the preparation of solutions of basic dyes to maintain their stability during extended periods of storage which comprises in admixture methyl alcohol, 2,2''thiodiethanol, and a basic dye stock.
摘要:
A composition including a basic dye component and an acid dye component providing an internal salt composition wherein at least one of the basic dye component, the acid dye component, or both the basic dye component and the acid dye component comprises a waxy moiety.
摘要:
The invention relates to an aqueous dye solution comprising a) 5 to 30% by weight of an anionic or cationic direct dye, b) 0.01 to 5% by weight of the compound of formula (1), in which M represents hydrogen, an alkali metal or alkaline earth metal, ammonium or ammonium, that is mono-, di-, tri- or tetra-substituted by C1-C4alkyl or C2-C4hydroxyalkyl or mixtures thereof, c) 0 to 10% by weight of an inorganic or an organic acid, d) 0 to 20% by weight of further additives and e) water to complete to 100%, with the proviso that direct dyes of the formula (2) in which K is a residue of a coupling component of the acetoacetanilide, pyridone, pyrazolone or pyrimidine series and M is as defined above, are excluded, a process for their preparation and the use thereof for dyeing paper.
摘要:
The novel cationic thiadiazolediphenylamine dyes of the formula (I) ##STR1## in which the substituents R.sup.1 to R.sup.9 have the meaning indicated in the description, and their anhydro bases, are suitable for use for inkjet printing and in light-writable data storage media and in dye transfer films.
摘要:
A water-reducible composition comprises A) between about 20 and about 50 wt % of a water-insoluble nigrosine, B) between about 25 and about 40 wt % of a solvent having a flashpoint of at least about 141.degree. F. (61.degree. C.) and a boiling point of at least about 280.degree. F. (138.degree. C.), and C) between about 20 and about 40 wt % of a non-ionic surfactant, the weight percentages being based on total weight of A), B), and C). The composition is prepared by dissolving the nigrosine A) in a C.sub.1 -C.sub.3 alkanol to form an alcohol solution, mixing the alcohol solution with the solvent B) and non-ionic surfactant C, and subsequently stripping the C.sub.1 -C.sub.3 alkanol.