| abstract |
Aqueous-based dye-depletion formulations such as bleaches, oxidizing agents or reducing agents are thickened or viscosity-modified by the addition of at least a small, but effective, amount of at least one crystalline mixed metal hydroxide conforming substantially to the formula n n Li.sub.m D.sub.d T(OH)(m+2d+3+n·a)(A.sup.n).sub.a n n ·xH 2 O n where m is zero to one, D is a divalent metal, d is from zero to 4, T is a trivalent metal, A represents at least one anion or negative-valence radical of valence n, where n is 1 or more, (m+2d+3+n·a) is equal to or greater than 3, (m+d) is greater than zero, and xH 2 O represents excess waters of hydration. n The dye-depletion formulations have highly beneficial gel-thinning and gel-setting properties which render it capable of being used in pattern-dying, pattern-bleaching, and the like. |