EFCO manufactures architectural windows, curtain walls, storefronts, and entry systems designed for commercial construction needs, sold through independent sales representatives across the United States.
Short History of Black Pigments. Carbon black was the first black. This dull black is the easiest to manufacture because it is made of charcoal. Another black is vine black, which is traditionally made by charring desiccated grape vines and stems, which produce beautiful bluish blacks. Bone black, made of burnt bones from prehistoric times, is the deepest available black.
# Biological pigments, also known simply as pigments or biochromes are substances produced by living organisms that have a color resulting from selective color absorption. Biological pigments include plant pigments and flower pigments. ... en.wikipedia.org/wiki/Pigments_(biolog... Examples: Chlorophyll is the green pigment in plant leaves and stems. Anthocyanin is the pigment that gives strawberries and blood oranges their red color. Carotene makes carrots and sweet potatoes orange. Pigments are what determine the color of an object (or to be scientifically correct, what color is reflected). The primary pigments are cyan, yellow, and magenta. Not to be confused with the primary colors of light: red, green, and blue.