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INTD 53 coloring agents. all designers must use materials in the creation of their works: achromatic—neutral, such as black, white or grays chromatic—hued, such as red, yellow, or brown. additive color mixing mixing of light
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INTD 53 coloring agents
all designers must use materials in the creation of their works: • achromatic—neutral, • such as black, white • or grays • chromatic—hued, • such as red, yellow, • or brown
additive color mixing mixing of light colored filters in front of projected light ray—red, blue or green video camera records images transmitted as light patterns chromaticity: measure of the combination of hue and saturation luminance: measure of value (lightness or darkness)
additive color mixing picture tube: coated with dots of phosphors in red, green, and blue activated by transmitted signals resulting in color image computer monitors: much the same way based on munsell system screen image additive (brighter)/printer image subtractive (duller)
subtractive color mixing • based on pigments or dyes • pigments: powders in a binder such as acrylic or oil which covers or adheres to a surface • dyes: pigments that are dissolved and absorbed in a fluid
subtractive color mixing dyeing mordants help fiber accept and fix dye— alum, iron, tannic acid, tin, copper procedures vary natural: from animal & vegetable sources, metals, minerals & clay synthetic: first aniline (alcohol & coal tar) then azo (petroleum-based), more colorfast and brilliant
subtractive color mixing • pigment best function: • should not react (fade/turn pale) when mixed with light or liquids • should have • permanence— • remain stable in • any atmosphere • should cover • well and retain • brilliance
subtractive color mixing • binders & grounds: • artist must be concerned with behavior of pigment • tinting strength— • refers to the intensity with which pigment reacts when mixed with white & binder • most surfaces/grounds begin with white • binders classified as dry or liquid—oils, waxes, gums, water or acrylics
subtractive color mixing • color printing: • four-color process printing • screens of dots layered on top of each other
subtractive color mixing • color printing: • PMS system (pantone matching system) • based on nine colors, plus black and transparent white • “recipes” create different colors
subtractive color mixing photography: works in black-and-white or color
participation activity: off-white samples …using the cardstock handout and the variety of hues available, create a variety of “whites"