Application of Dyes and Pigments

Dyes and pigments are substances that are used to impart color to liquid solutions and solid materials. These are used in almost every application. Perhaps there would be a very few applications, where there would be no use of the dyes. They have become indispensable tools for a variety of industries.

From acting as colorants for plastics, textile dyeing industries and the highly sophisticated biotechnology industry dyes are touching our life everywhere. Dyes are also used by industries for inks and tinting. Today, various dyes are manufactured to meet the requirements of each type of industries. Dyes are available in various forms. Examples are dry powders, granules, pastes, liquids, pellets, and chips.

Other industries where dyes are used in a variety of products include paper and pulp, adhesives, art supplies, beverages, ceramics, construction, cosmetics, food, glass, paints, polymers, soap, wax biomedicine etc.

Dyes that cater to specialty industries often come with specialized properties that include

• Conducts electricity
• Contain reinforcing fibers
• Resistance to heat
• Resistance to weather conditions
• Resistance to ultraviolet light (UV)
• Free from heavy metals
• Some products are water soluble

There would hardly be any industries left where Pigments do not play any substantial role. The challenge is now to discover pigments that are capable of not only long-lasting applications but also are environmentally safe. A few of the important applications of Pigments is given below:

• Paints
• Printing Inks
• Coloration of plastics
• Coloration of cement glass paints
• Coloration for cosmetics
• Coloration for papers