pigmenttiväristä

Pigmenttiväri, a Finnish term, translates to pigment dye or pigment color in English. It refers to a coloring substance that is insoluble in the medium in which it is dispersed. Unlike dyes, which dissolve and chemically bond with the material they color, pigments remain as solid particles. This insolubility is a key characteristic that distinguishes them from dyes.

Pigments are typically used to impart color to paints, inks, plastics, textiles, and cosmetics. They can be organic or inorganic in origin. Inorganic pigments, such as titanium dioxide for white or iron oxides for reds and browns, are often known for their stability and opacity. Organic pigments, derived from carbon-based compounds, offer a wider range of vibrant colors and can be more translucent.

The application of pigments involves dispersing them within a binder, which is a liquid or semi-liquid substance that holds the pigment particles together and adheres them to the surface being colored. The binder dries or cures, forming a solid film that encapsulates the pigment. The color we perceive is a result of the pigment's selective absorption and reflection of light.

The durability and lightfastness of a pigment are important considerations for its intended use. Some pigments are prone to fading or changing color when exposed to sunlight or other environmental factors, while others are highly resistant. The choice of pigment depends on factors such as the desired color, opacity, transparency, durability, cost, and compatibility with the application medium.