Patent ID: 7001435

Claim:
In a method for dyeing leather of the type comprising: (a) coating onto a leather a composition comprising colorant dispersed in a propylene glycol monomethyl ether solvent system, a dibutyl phthalate elastomer, and an aqueous slurry of tetrafluoroethylene polymer to the surface of leather; (b) flashing and taping the coating at ambient conditions, and (c) repeating steps (a) and (b) to achieve from 2 to 6 coatings; the improvement comprising substituting a non-aqueous polyacrylate polymer resin base for the aqueous slurry of tetrafluoroethylene, and adding a mixture of C-3 and C-4 alcohol solvents and n-butyl acetate, instead of the dibutyl phthalate; wherein the coating composition is non-aqueous; and wherein there is achieved improved colorant penetration, improved flashing time, improved dust-free time, and improved tape time.