Onpigmenttien

Onpigmenttien is not a standard term in pigment science, and this article treats it as a coined placeholder for a discussion of pigments in general. In Finnish, pigmentti means pigment, and pigmenttien is the genitive plural "of pigments." As a concept, pigments are solid colorants added to materials to impart color and other visual effects.

Pigments are typically insoluble in the medium in which they are used, distinguishing them from dyes. They are categorized into inorganic pigments (for example, iron oxides, titanium dioxide) and organic pigments (such as phthalocyanines and quinacridones). Their color arises from the specific electronic structure of the pigment molecules or particles, and their performance depends on factors like particle size, crystal structure, and dispersion.

Key properties include color (hue and saturation), tinting strength, opacity or transparency, lightfastness, and heat stability. Opacity is often enhanced by pigment particle shape and refractive index, while lightfastness indicates resistance to fading under light exposure. The compatibility of a pigment with binders, solvents, and processing conditions is crucial for achieving durable and uniform color in the final product.

Applications span paints, coatings, plastics, inks, cosmetics, and textiles. Pigment performance is influenced by application method, dispersion quality, and the presence of additives that improve stability and color consistency. Environmental and safety considerations affect pigment selection, with regulations restricting hazardous substances and encouraging low-toxicity formulations.

See also: Pigment, Dye, Colorant, Paint. References are available in standard pigment science literature.