Värviaine

Värviaine is a Estonian term that translates to "dye" or "coloring agent" in English. It refers to any substance that imparts color to another material, such as fabric, food, cosmetics, or plastics. These substances can be natural, derived from plants, animals, or minerals, or synthetic, manufactured through chemical processes.

The primary function of a värviaine is to absorb certain wavelengths of light and reflect others, creating the perception of a specific color. The chemical structure of the värviaine determines which wavelengths it absorbs and reflects. Different types of värviaine are used depending on the substrate they are intended to color, as well as the desired properties like colorfastness, heat resistance, and toxicity.

Natural värviaine include pigments like carmine from cochineal insects, indigo from plants, and ochre from minerals. Synthetic värviaine, often developed for greater stability and a wider range of colors, are widely used in modern industries. The choice between natural and synthetic värviaine can be influenced by factors such as cost, environmental impact, and regulatory requirements. The application of värviaine is a fundamental process in many manufacturing and artisanal practices.