Colorant stabilizers
OwnerRonald Sinclair Nohr, John Gavin MacDonaldinventors
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Abstract
The present invention comprises colorant stabilizers and a colorant composition which includes a colorant and a colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so that the colorant does not fade when exposed to electromagnetic radiation such as sunlight or artificial light.
Claims94
A composition comprising a colorant stabilizing agent in or on a substrate, wherein the stabilizing agent is a reducing agent, a molecular includant, or a combination thereof.
A method of light-stabilizing a colorant, comprising:
- associating the colorant with a composition, the composition comprises a colorant stabilizing agent in or on a substrate, wherein the stabilizing agent is a reducing agent, a molecular includant, or a combination thereof.
The composition of claim, 55, wherein the iodide is sodium iodide or tetramethyl ammonium iodide.
Dependencies are inferred from the claim text.