INTD 53 coloring agents
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Transcript of INTD 53 coloring agents
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INTD 53
coloring agents
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all designers must use materials in the creation of their works:
•achromatic—neutral,such as black, whiteor grays
•chromatic—hued, such as red, yellow, or brown
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additive color mixing
mixing of lightcolored 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 saturationluminance: measure of value (lightness or darkness)
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additive color mixing
picture tube:coated with dots of phosphors in red, green, and blueactivated by transmitted signalsresulting in color image
computer monitors:much the same waybased on munsell systemscreen image additive (brighter)/printer image subtractive (duller)
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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
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subtractive color mixing
dyeing
mordants help fiber accept and fix dye— alum, iron, tannic acid, tin, copperprocedures varynatural: from animal & vegetable sources, metals, minerals & claysynthetic: first aniline (alcohol & coal tar)then azo (petroleum-based), more colorfast and brilliant
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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
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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 whitebinders classified as dry or liquid—oils, waxes, gums, water or acrylics
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subtractive color mixing
color printing:•four-color process printing•screens of dots layered on top of each other
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subtractive color mixing
color printing:•PMS system (pantone matching system)•based on nine colors, plus black and transparent white•“recipes” create different colors
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subtractive color mixing
photography:works in black-and-white or color
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participation activity: off-white samples
…using the cardstock handout and the variety of hues available, create a variety of “whites"
white white white white white
one drop one drop one drop one drop one drop
variation variation variation variation variation