Marking composition and method for marking dark substrates
AssigneeBinney & Smith Inc.
InventorMichael S. Craig
Life of this patent
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Abstract
A marking composition suitable for marking colored substrates, especially dark substrates, is disclosed. The marking composition comprises a wax, a fatty acid, a reflecting filler, and a colorant selected from an oil soluble dye, an oil dispersable dye, or an oil dispersable pigment. A defoamer and a non-reflecting filler can be optionally included in the marking composition. For example, the marking composition can be provided in the form of crayons, colored pencils, and the like. A method of providing a mark on a colored substrate is also disclosed.
Claims20
A marking composition suitable for marking colored substrates comprising:
- a wax;
- a fatty acid;
- a reflecting filler comprising titanium dioxide, which is present in a concentration of at least about 5% by weight of said composition;
- and
- an oil dispersable pigment.
A marking composition suitable for marking colored substrates comprising:
- a wax;
- a fatty acid;
- an opacifying reflecting filler, which is present in a concentration of at least about 5% by weight of said composition;
- and
- an oil dispersable pigment.
A crayon composition suitable for marking colored substrates comprising:
- a wax, which is present in a concentration of from about 1% to about 60% by weight of said composition;
- a fatty acid, which is present in a concentration of from about 1% to about 40% by weight of said composition;
- an opacifying reflecting filler, which is present in a concentration ranging from about 5% to about 12% by weight of said composition;
- an oil-dispersable pigment, which is present in a concentration ranging from about 1% to about 7% by weight of said composition;
- a defoamer which is optionally present in a concentration ranging from about 0% to about 1% weight of said composition;
- and
- a non-reflective filler, which is optionally present in a concentration ranging from about 0% to about 15% by weight of said composition.
Dependencies are inferred from the claim text.