Results 251 to 260 of about 351,948 (307)
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Journal of the Society of Dyers and Colourists, 1977
Reactive dyes containing a sulphonylazide group can undergo fixation on nylon substrates by two different mechanisms. Under aqueous dyeing conditions, at or below 120d̀ C, the free amino end‐groups of the polymer attack the sulphonylazide group with displacement of azide ion, and results in attachment of the dye to the substrate by a sulphonamide ...
John Griffiths, R. Ian McDarmaid
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Reactive dyes containing a sulphonylazide group can undergo fixation on nylon substrates by two different mechanisms. Under aqueous dyeing conditions, at or below 120d̀ C, the free amino end‐groups of the polymer attack the sulphonylazide group with displacement of azide ion, and results in attachment of the dye to the substrate by a sulphonamide ...
John Griffiths, R. Ian McDarmaid
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Angewandte Chemie International Edition in English, 1964
AbstractTwo new groups of reactive dyestuffs have been developed. One group (Levafix® dyes) comprises compounds which contain SO2NHCH2CH2OSO3H or CH2N(alkyl)‐CH2CH2OSO3H as reactive groups. The dyes of this group react with cellulose fibers to form cellulose ethers, e.g. RSO2NHCH2CH2Ocellulose. The substances in the second group (Levafix‐E®
K. G. Kleb, E. Siegel, K. Sasse
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AbstractTwo new groups of reactive dyestuffs have been developed. One group (Levafix® dyes) comprises compounds which contain SO2NHCH2CH2OSO3H or CH2N(alkyl)‐CH2CH2OSO3H as reactive groups. The dyes of this group react with cellulose fibers to form cellulose ethers, e.g. RSO2NHCH2CH2Ocellulose. The substances in the second group (Levafix‐E®
K. G. Kleb, E. Siegel, K. Sasse
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Impact of Reactive Dye Structures on Dyeing Properties in Salt-Free Reactive Dyeing
Advanced Materials Research, 2013The cationic cotton was obtained by pretreatment with tertiary amine cationic polyacrylamide, and dyed with various active groups reactive dyes in the absence of salt. The influences of reactive dye structures on dyeing properties were analyzed and the results showed that types of active groups in reactive dyes had little effect on dye exhaustion, but ...
Xiao Xu Teng +2 more
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Dyeing of nylon with reactive dyes. Part 3: Cationic reactive dyes for nylon
Dyes and Pigments, 2008Abstract Several reactive dyes, solubilised by the incorporation of one or two cationic groups were synthesised. Each possessed either a single mono- or dichlorotriazine reactive group, or a hetero-bifunctional (monochlorotriazine/sulphatoethylsulphone) reactive system.
A. Soleimani-Gorgani, J.A. Taylor
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Textile Research Journal, 1970
The bromine atom in an o-bromo- o'-hydroxyazo dye has been found to react with wool in the presence of copper sulfate. Several reactive dyes of this type for wool have been prepared. The extent of reaction with the fiber has been studied. These dyes do not react with silk or nylon.
S. Seshadri, K.V.S. Mani
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The bromine atom in an o-bromo- o'-hydroxyazo dye has been found to react with wool in the presence of copper sulfate. Several reactive dyes of this type for wool have been prepared. The extent of reaction with the fiber has been studied. These dyes do not react with silk or nylon.
S. Seshadri, K.V.S. Mani
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Coloration Technology, 2002
The wool dyeing properties, such as exhaustion and fixation parameters, of selected hetero‐bifunctional Sumifix Supra dyes and some other commercial reactive dyes were quantified under various dyebath pH conditions. Studies of the dyeing of wool serge fabric indicated that Sumifix Supra dyes could produce reasonably high fixation values.
Ho Jung Cho, D M Lewis
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The wool dyeing properties, such as exhaustion and fixation parameters, of selected hetero‐bifunctional Sumifix Supra dyes and some other commercial reactive dyes were quantified under various dyebath pH conditions. Studies of the dyeing of wool serge fabric indicated that Sumifix Supra dyes could produce reasonably high fixation values.
Ho Jung Cho, D M Lewis
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Textile Dyes (excluding Reactive Dyes)
2014In contrast to the application of pigments, involving mechanical anchoring of discrete solid particles in a polymeric matrix, dyeing relies on equilibrium processes involving diffusion or sorption of dye molecules or ions within the substrate. Dyes are used in the coloration of a wide range of substrates including paper, leather and plastics, but by ...
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Reuse of reactive dyes for dyeing of jute fabric
Bioresource Technology, 2006The aim of the work was to find out suitable method of dyeing so that costly reactive dye can be reused without draining them. The bleached jute fabric was dyed with four different class of reactive dyes namely, cold brand, hot brand, vinyl sulphone and high exhaustion (HE) brand.
S N, Chattopadhyay, N C, Pan, A, Day
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Journal of the Society of Dyers and Colourists, 1960
Conventional dyes for nylon have suffered, hitherto, from the disadvantage that those of good fastness properties do not readily cover the chemical and physical irregularities of the fibre, whilst those which are free from these defects have rolatively low fastness properties.A new range of reactive dyes for nylon has now been developed.
D. F. SCOTT, T. VICKERSTAFF
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Conventional dyes for nylon have suffered, hitherto, from the disadvantage that those of good fastness properties do not readily cover the chemical and physical irregularities of the fibre, whilst those which are free from these defects have rolatively low fastness properties.A new range of reactive dyes for nylon has now been developed.
D. F. SCOTT, T. VICKERSTAFF
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