Patent
Acid anthraquinone dyestuffs
TLDR
In this paper, acid anthraquinone dyestuffs are used for the dyeing and printing of organic materials especially materials made from natural and synthetic polyamide, and the resulting dyeings are distinguished by purity, good fastness to light, washing and perspiration.Abstract:
WHEREIN R denotes hydrogen or lower alkyl and wherein any substituent of A other than NHR is selected from hydrogen, halogen, lower alkyl or SO3-M+, and M+ is one equivalent of a colorless cation. These dyestuffs are useful for the dyeing and printing of organic materials especially materials made from natural and synthetic polyamide. The resulting dyeings are distinguished by purity, good fastness to light, washing and perspiration. The dyestuffs in which B represents ARE MOREOVER VALUABLE AS INTERMEDIATE PRODUCTS FOR THE PRODUCTION OF FIBER REACTIVE DYESTUFFS FOR CELLULOSE AND POLYAMIDE MATERIAL. Acid anthraquinone dyestuffs are disclosed which are the formularead more
Citations
More filters
Patent
Polyester film with anthroquinone dye for a photographic film support
TL;DR: A polyethylene terephthalate film for an X-ray photographic film support colored blue by one or more anthraquinone dyes represented by the general formula whereIN X represents a hydrogen atom; an alkyl group having 1-15 carbon atoms; a cycloalkyl group; an aryl group, substituted by an aralkyl groups having 1 -10 carbon atoms, a carboxyl group, or a halogen atom as mentioned in this paper.
Patent
Aromatic imide and aromatic methylidynetrissulfonyl compounds and method of making
TL;DR: In this article, a method for making aromatic-imide and aromatic-methylidynetrissulfonyl species by reaction of aromatic species with a reactant according to formula (I): (X-SO2-)m-QH-(-SO 2-R1)n wherein Q is C or N; wherein each X is independently selected from the group consisting of halogens, typically F or Cl; each R1 is independently selecting from the groups consisting of aliphatic and aromatic groups, which may or may not be saturated, unsaturated, straight-chain,
Patent
Process for the dyeing of synthetic polyamides
TL;DR: In this paper, a linear polyamides are dyed from a weakly acid to neutral dyebath with acid dyes of formula: in which R is an alkyl group of 1-6 carbon atoms, or a cycloalkyl group which may be substituted, X is hydrogen, halogen or alkoxy group containing 1- 6 carbon atoms and n is 1 or 2, and at least one of the ortho positions of the phenyl radical relative to the NH group being unsubstituted.
References
More filters
Patent
Easily water soluble salts of wool dyestuffs
TL;DR: In this paper, a method for the production of easily water soluble salts of acid wool dyestuffs that contain an anthraquinone nucleus was proposed. But it is well known that some of them possess insufficient solubility in water and present...
Patent
Wool dyestuffs of the anthraquinone series and process of making same
Honold Ernst,Weinand Klaus +1 more
Patent
Acid anthbaquinone dyestuffs and their manufacture
TL;DR: In this article, an improved process and product for the production of anthraquinone dyestuffs is described. But this process is not suitable for the use of quinizarin.