Patent ID: 7659236

Claim:
Solid bar composition comprising: (a) 5 to 85% by wt. of a surfactant selected from the group consisting of anionic surfactant, nonionic surfactant, amphoteric surfactant, cationic surfactant and mixtures thereof; (b) 1 to 50% by wt. bar structurant; (c) 0 to 30% by wt. free fatty acid; (d) 0.1 to 10% by wt. thermochromatic pigment or dye; and (e) 1 to 25% benefit agent wherein said bar comprises combining chip compositions comprising i. (a) 40 to 99.9% by wt. chip composition of a polyalkylene glycol soluble structurant material; (b) 1 to 40% by wt. chip composition of a benefit agent; (c) 0.1 to 25% by wt. chip composition thermochromatic pigment; and (d) 0 to 10% by wt. chip composition water; and ii. 95 to 60% by wt. chips comprising surfactants; wherein (i) and (ii) are combined to form said final solid bar composition in which the pigment is found in the final bar in concentrated regions defined by the chips of (i).