Fusionplast may be a Leading Reactive Dyes Manufacturer, Supplier & Exporters in Brazil, Vietnam, Indonesia. Reactive dyes are a category of highly coloured organic substances, primarily used for tinting textiles, that attach themselves to their substrates by a reaction that forms a chemical bond between the molecule of dye which of the fibre. The dyestuff thus becomes a neighborhood of the fibre and is far less likely to be removed by washing than are dyestuffs that adhere by adsorption.
The first fibre reactive dyes were designed for cellulose fibres, and that they are still used mostly during this way. There also are commercially available fibre reactive dyes for protein and polyamide fibres. In theory, fibre reactive dyes are developed for other fibres, but these aren’t yet practical commercially. The dyes contain a reactive group that, when applied to a fibre during a weakly alkaline dyebath, form a bond with the fibre. Reactive dyes also can be wont to dye wool and nylon, within the latter case they’re applied under weakly acidic conditions.
The most important characteristic of reactive dyes is that the formation of covalent bonds with the substrate to be coloured, i.e. the dye forms a bond with cellulose, which is that the main component of cotton fibers.
Fiber reactive dyes are the foremost permanent of all dye types. Unlike other dyes, it actually forms a chemical bond with the cellulose or molecule . Once the bond is made , what you’ve got is one molecule, because the dye molecule has become an actual a part of the cellulose fiber molecule. No wonder you’ll safely wash a garment that has been dyed in bright fiber reactive colours with white clothing, 100 times, without endangering the whites within the least – albeit it’s all different bright colours, or maybe solid black! In contrast to all or any other dyes the reactive dyes bind chemically to the textile fibres, significantly improving the product’s colour stability and washability. Thus reactive dying of cotton is currently the foremost widespread textile dying process within the world.