The two important colorant sources will be the dyes and pigments. However, there lies some difference inside the features, types of use, benefits plus the sore points of the of them though often the terms, pigment, dye, colorant, dyestuff, paint, colour are incorrectly used interchangeably.
Colorants result from organic and inorganic sources and dyes constitute many the organic colorants even though the pigments come largely in the inorganic sources. Naturally sourced pigments are removed from animals, vegetables and minerals sources; however, majorly pigments consists of inorganic oxides and salts like chromium and iron oxides that will get diffused in powder form within the medium of application. The coloring properties on the diffusion are dependant on the form and size from the pigment particle. The dyes are separated into natural dyes and synthetic wherein the natural causes of dyes are definitely the same as that surrounding pigments while synthetic dyes are petroleum compound based.
Dyes and pigments are both equally important to humans for providing colour to everyone type of items though the major difference between both the lies in their basic way of imparting colour. In case of dyes, colour is diffused on the molecular level as is also soluble inside organic solvent or water whereas in pigments colour is diffused as particles since they are insoluble in a choice of type in the liquid medium. Additional compounds are needed for attaching the pigment particles on the substrate. For example, pigments for paint require addition of polymer in paint for diffusion.
The vibrancy of colour from the dyes would depend on its chromophore molecule’s electronic properties. Colorants from dyes impart greater brilliance and show greater colour strength besides being better to process. Among the dyes, basic dyes will be more known for their vibrancy and brightness and compatibility with anionic and artificial materials. All basic dyes manufacturers in India will confirm their suitability for coloring cationic, synthetic such things as acrylics. However, dyes as colorants exhibit low durability, solvent and warm stability and high degrees of migration and acid red being one ones is no different.
On another hand, pigment colorants tend to be more durable, solvent and also heat stable besides being migration and lightfast. But their cons include low colour strength and brilliance. Due for the starkly features of dyes and pigments many efforts were designed to enhance the properties of the colorant class. This led for the development of a brand new colorant class called as the Nanocolorants.
This class strives to blend the good processability and superior chromatic options that come with dyestuffs and much better durability of organic pigments. Combining the main advantages of both the colorants, Nanocolorants emerged a better alternative and it has demonstrated superior features proving highly useful for several applications including preparing aqueous ink-jet inks, high-performance colour resistant polymer coloration, electro-photographic toners a few.
In but the, notwithstanding the functions, dyes and pigments are indispensable elements for helping us to guide a color filled life.