Washable dye-containing composition
AssigneeBinney & Smith Inc.
InventorRichard E. Miller
Life of this patent
Estimating the term…
Abstract
In one form, the invention is a washable dye-containing composition comprising an acid dye, a dye vehicle, and an organic sulfonate in an amount of at least about 10% by weight of the composition. More specifically, the invention is, in one preferred embodiment, a washable marker ink, comprising an acid dye, water, and an aromatic sulfonate in an amount of at least about 10% by weight of the composition. In another embodiment, the composition of the invention is in the form of a water-soluble tempera paint comprising an acid dye, water, fillers, thickeners, opacifiers, and an organic sulfonate in an amount of at least about 10% by weight of the composition. Other water-soluble dye-containing compositions having enhanced skin and fabric fugitivity are within the scope of the invention as well.
Claims16
A washable dye-containing composition for imparting color to a surface comprising:
- (a) an acid dye,
- (b) a dye vehicle, and
- (c) an aromatic organic sulfonate, other than an alkyl benzene sulfonate, in an amount of at least about 10% by weight of the composition, said amount of sulfonate being sufficient to enhance the fugitivity of said composition from skin and fabric.
A marking instrument containing an ink, said ink comprising:
- (a) an acid dye,
- (b) water, and
- (c) an aromatic organic sulfonate, other than an alkyl benzene sulfonate, in an amount of at least about 10% by weight of the composition, said amount of sulfonate being sufficient to enhance the fugitivity of said composition from skin and fabric.
A method of imparting skin and fabric fugitivity to a composition containing an acid dye, comprising adding to said composition an aromatic organic sulfonate, other than an alkyl benzene sulfonate, in an amount of at least about 10% by weight of the composition, said amount of sulfonate being sufficient to enhance the fugitivity of said composition from skin and fabric.
An aqueous ink composition suitable for use in a marking instrument, said composition comprising:
- (a) an acid dye,
- (b) a humectant in an amount of from about 5% to about 30% by weight,
- (c) a surfactant in an amount of from 0% to about 0.1% by weight,
- (d) a preservative in an amount of from about 0.1% to about 0.6% by weight, and
- (e) an aromatic organic sulfonate, other than an alkyl benzene sulfonate, in an amount of from about 10% to about 25% by weight, said amount of sulfonate being sufficient to enhance the fugitivity of said composition from skin and fabric.
Dependencies are inferred from the claim text.