Multi-color crayon or oil pastel and method of producing the same
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United States of America Patent
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Jan 6, 2004
Grant Date -
Dec 26, 2002
app pub date -
Mar 13, 2002
filing date -
May 11, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multi-color crayon or oil pastel which features excellent drawing property, vividness of color and intimate adhesion of multi-color picture in combination, and a method of preparing the same. The multi-color crayon or oil pastel comprises a continuous matrix of a crayon or oil pastel material and a plurality of kinds of granular coloring phases dispersed in the matrix, the granular coloring phases being formed of a collapsible granular material which includes a coloring matter of a hue different from that of the continuous matrix, a body, and a water-soluble or solvent-soluble high molecular material or a water-swelling clay mineral (e.g., bentonite).
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Cited Art Landscape
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