3 edition of The World Market for Reactive Dyes and Their Preparations found in the catalog.
September 28, 2006
by ICON Group International, Inc.
Written in English
|The Physical Object|
|Number of Pages||131|
Dye - Dye - Development of synthetic dyes: Perkin’s accidental discovery of mauve as a product of dichromate oxidation of impure aniline motivated chemists to examine oxidations of aniline with an array of reagents. Sometime between and , French chemist François-Emmanuel Verguin found that reaction of aniline with stannic chloride gave a fuchsia, or rose-coloured, dye, which he. Their use on cellulosic fibres is especially important, but their growing popularity on polyamide substrates is notable. Detailed information is given about developments both in the chemistry of reactive systems and in the chemical technology involved in their Cited by:
DyStar is the world’s leading supplier of textile dyes. We have by far the broadest product range on the market, covering almost all fibres and quality specifications. All our products comply with international legal requirements and we offer product lists of our brand & retailer RSL (Restricted Substance List) compliant products. Table Canadian Imports of Vat Dyes and Preparations (): Percentage Share Breakdown of Import Value by Country of Origin (includes corresponding Graph/Chart) III Analytics.
Detailed information is given about developments both in the chemistry of reactive systems and in the chemical technology involved in their application to a variety of fibre types. It is also pointed out that further research is necessary to improve dye–fibre fixation efficiency, especially when dyeing full shades on cellulosic by: The report titled “Global Dyes Market-Projections to - By Type (Reactive Dyes, Disperse Dyes, Direct Dyes, Vat Dyes, Acid Dyes and Others) and By Application (Textiles, Leather, Paper, Printing Inks and Others)” provides a comprehensive analysis of market size for dyes in different regions across the world, market segmentation by product type (reactive dyes, disperse dyes, direct dyes.
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In what follows, Chapter 2 begins by summarizing where Hong Kong fits into the world market for imported and exported reactive dyes and their preparations.
The total level of imports and exports on a worldwide basis, and those for Hong Kong in particular, is estimated using a model which aggregates across over key country markets and Author: Philip M.
Parker, Philip M., Parker. The World Market for Disperse Dyes and Their Preparations: A Global Trade Perspective: Economics Books @ This report was created for strategic planners, international executives and import/export managers who are concerned with the market for vat dyes and their preparations excluding pigments.
With the globalization of this market, managers can no longer be contented with a local : Spiral-bound. In what follows, Chapter 2 begins by summarizing where Poland fits into the world market for imported and exported reactive dyes and their preparations. The total level of imports and exports on a worldwide basis, and those for Poland in particular, is estimated using a model which aggregates across over key country markets and projects these to the current : Philip M.
Parker, Philip M., Parker. The Import and Export Market for Reactive Dyes and Their Preparations in Switzerland: : Icon Group International: Libros en idiomas extranjerosFormat: Tapa blanda.
Reactive dyes become a part of the fiber, making it is less likely to be washed away. Reactive dyes are primarily used in the cotton, silk, nylon, and wool textile industries.
Any fluctuations in these industries directly impacts the reactive dyes market. The reactive dyes market /5(19). There is no doubt that reactive dyes have been a major success for cellulose fibres; tonnes of reactive dye were sold in the year for the colouration of cotton and regenerated cellulosic fibres, which represented 38% of the cellulose fibre dye market of tonnes.
15 However with pressure on the use of heavy metals in wool dyeing there is currently a strong trend developing to use reactive dyes. Reactive dye printing chemistry requires an alkali, such as sodium bicarbonate, as the fixing agent to establish the molecular bonds between the dyes and the fibers.
Printing with reactive dyes also requires a thickening agent. Sodium alginate thickener, a derivative of seaweed, is the most common. A review of the literature on the chemical structure of the textile dyes.
This review discusses characteristics associated with the production and use of textile dyes throughout the world. Reactive dyes are a class of highly coloured organic substances, primarily used for tinting textiles, that attach themselves to their substrates by a chemical reaction that forms a covalent bond between the molecule of dye and that of the fibre.
Dyes are employed in a variety of industries, from cosmetic production to the medical sector. The two volumes of the Handbook of textile and industrial dyeing provide a detailed review of the latest techniques and equipment used in the dyeing industry, as well as examining dyes and their application in a number of different industrial sectors.
The potential solutions reviewed include multifunctional reactive dyes, cationic reactive dyes, and cellulose fibre modification. Discover the world's research 17+ million members. Reactive azo dyes, which are used for dyeing cellulose, produce the colored wastewater (Fig.
These dyes make up ∼30% of the total dye market. Because of their stability and xenobiotic nature, reactive azo dyes are not totally degraded by conventional wastewater treatment processes that involve light, chemicals, or activated sludge.
Dyes containing one or more azo groups (i.e. azo dyes) comprise by far the largest family of organic dyes. Prominent types are 1) acid dyes for polyamide and protein substrates such as nylon, wool, and silk; 2) disperse dyes for hydrophobic substrates such as polyester and acetate, and 3) direct and reactive dyes for cellulosic substrates such asFile Size: KB.
In a reactive dye, a chromophore (an atom or group whose presence is responsible for the colour of a compound) contains a substituent that reacts with the substrate. Reactive dyes have good fastness properties owing to the covalent bonding that occurs during dyeing.
Reactive dyes are most commonly used in dyeing of cellulose like cotton or flax, but also wool is dyeable with reactive dyes. Reactive dye, any of a class of highly coloured organic substances, primarily used for tinting textiles, that attach themselves to their substrates by a chemical reaction that forms a covalent bond between the molecule of dye and that of the fibre.
The dyestuff thus becomes a part of the fibre and. Across Asia and Africa, patterned fabrics were produced using resist dyeing techniques to control the absorption of color in piece-dyed cloth.
Dyes from the New World such as cochineal and logwood were brought to Europe by the Spanish treasure fleets, and the.
The essential target for such preparation is to bring into focus adsorbents which completely can remove anionic dyes, e.g., acid dyes from aqueous systems thereby improving the quality of water.
Dyeing and printing processes are value-added treatments for most textile materials. A dyeing process is the interaction between a dye and a fibre, as well as the movement of dye into the internal part of the fibre. Generally, a dyeing process involves adsorption (transfer of dyes from the aqueous solution onto the fibre surface) and diffusion (dyes diffused into the fibre).
Reactive Dyes (also fiber-reactive dyes), a class of dyes developed between and Reactive dyes form covalent chemical bonds with hydroxyl groups when dyeing cellulosic fibers and covalent chemical bonds with amino groups and certain other groups when dyeing protein and polyamide fibers.
The molecules of a reactive dye contain a chromophoric. Dyes, Reactive Dyes, Sulfur Dyes, Vat Dyes, and Other Dyes Markets Independently Analyzed with Annual Sales Figures in Tons for Years through (includes corresponding. Reactive dye. In a reactive dye a chromophore(an atom or group whose presence is responsible for the colour of a compound) contains a substituent that reacts with the substrate.
Reactive dyes .Reactive dyes are extensively used in the textile industry, due to their wide variety of colour shades, high wet fastness, simplicity of application and minimal energy consumption .