1400 Desert Varnish Pigments
1410 Sunset Orange
1420 Supai Red
A pigment is a material that changes the color. It does that by reflected or transmitted light as the result of wavelength-selective absorption. Such as, this physical process differs from fluorescence, phosphorescence, and other forms of luminescence. It which a material emits light. While, materials selectively absorb certain wavelengths of light. Materials that humans have chosen and developed for use as pigments. Usually have special properties that make them useful for coloring other materials. Even so, pigment must have a high tinting strength relative to the materials it colors. Thus, it must be stable in solid form at ambient temperatures. There are various types of coloring that are only required for any particular work such as.
Pigments are used in color. They include:
Most pigments used in manufacturing. Also, the visual arts are dry colorants. Usually ground into a fine powder. Pigments are used for artists’ paints, car finishes, and light-reflecting signs. Also, The materials are not soluble, so they have to get mixed with binders. Also, vehicles to attach them to a substrate. In short, pigment selection starts with a definition of the final application. Works back through system types, process, manufacture, and physical requirements of the pigment.
Industrial applications, stability is desirable properties. In fact, pigments that are not permanent are called fugitive. Even so, fugitive pigments fade over time. Besides with exposure to light, while some eventually blacken. Pigments are used for coloring:
In this case, pigments used in manufacturing. Even so, visual arts are dry colorants, usually ground into a fine powder.
For use in paint, this powder is added to a binder (or vehicle). A neutral or colorless material that suspends the pigment. It gives the paint its adhesion. In addition, a distinction is usually made between a pigment. It is insoluble in its vehicle (resulting in a suspension). Thus, dye, which either is itself a liquid. It is soluble in its vehicle (resulting in a solution). Even so, a colorant can act as either a pigment. Likewise, it a dye depending on the vehicle involved. Altogether, a pigment can be manufactured from metallic salt. In fact, resulting pigment is called a lake pigment.