Let’s Get Deep Into Industrial Colorants

1. Let’s Get Deep Into Industrial Colorants Colorants are employed in several industries to color garments, plastics, paints, prints, photographs and ceramics. Now colorants are also being employed in new applications and are termed functional as they aren’t just comprised in the product for visual reasons but for particular purposes, for instance in surgery. Industrial colorants can be either pigments or dyes. Dyes are soluble colored natural elements that are generally employed to fabrics from a solution in water. They’re made to bond powerfully to the polymer molecules that make up the fibre textile. Pigments are insoluble element employed in ceramics, plastics, printing inks and paints. They’re applied by employing a dispersion in an appropriate medium. A majority of pigments employed are also organic elements. Throughout the procedure of a dyeing a fabric, the dye is dispersed amid the 2 phases, the aqueous phase and the solid fiber phase, and at the conclusion of the dyeing procedure the solution is exhausted and a majority of the dye is concerned with the textile. As soon as the dye molecules get into the fibre there’s instant interaction amid the 2 elements, which stops desorption of the dye molecules back into solution. This kind of interaction, whether chemical or physical, will rely on the groups on the dye molecules as well as in the fiber chains. Categorization of industrial colors by procedures of application: Classification by the method of application is important to the textile dyer applying the dye to produce the color required. To obtain the required shade the dyer usually has to make mixtures of dyes and must ensure that these are compatible. The basic features that control dye transfer from solution to fibre are: the pH of the solution in the dye bath (for acid and basic dyes) an electrolyte (a solution of sodium sulfate or chloride) the temperature (within the range of ambient to 400 K) chemicals, known as dispersing agents, that produce a stable aqueous dispersion of dyes of very low solubility     pigments: pigments are employed in the tinge of paints, ceramics, plastics and printing inks. They can be employed on a much wider range of materials than dyes because they’re not dependent on water solubility for their application. The chromophores used in pigments are typically the same as those used in dyes but the pigments are large molecules and don’t have solubilising groups. They contain groups that formintermolecular bonds that assist to decrease solubilities. The larger the molecule, the more solid the pigment. For more information visit: wcmfgr.com