Patent ID: 8795717

Claim:
A dry substrate comprising: a first tissue web comprised of fibers, the web including a first side and a second side; and a temperature change composition present on at least the first side of the tissue web, the temperature change composition comprising: a phase change component that undergoes a phase change at a temperature from about 20° C. to about 35° C., the phase change component having a heat of fusion of at least about 100 J/g and being present on the tissue web such that the tissue web has a heat absorption factor of at least about 500 J/m 2 , the phase change component present in an amount between about 1% by weight of the temperature change composition and about 99.9% by weight of the temperature change composition, a non-interfering molecular scaffold present in an amount between about 1% by weight of the temperature change composition and about 50% by weight of the temperature change composition, the non-interfering molecular scaffold comprising an ingredient that combines with the phase change component into a homogeneous mixture that (a) maintains a gel-like consistency at 40 degrees Celsius, and (b) retains at least 75% of the enthalpy of the phase change component in a pure form, wherein the non-interfering molecular scaffold comprises a crystalline diluent selected from fatty alcohols and fatty acids, the fatty alcohols and fatty acids having a chain length from 6 to about 50 carbon atoms, and wherein the non-interfering molecular scaffold comprises a polymer selected from polyethylene, C 8-22 alkyl acrylates/methacrylic acid crosspolymer, C 8-22 alkyl acrylate/butyl dimethicone methacrylate copolymer, polystyrene-poly(ethylene-propylene) diblock copolymers, polystyrene-poly(ethylene-butylene-styrene)-polystyrene (S-EB/S-S) triblock copolymers, maleic anhydride-grafted polystyrene-polyethylene-butylene)-polystyrene triblock copolymers, maleic anhydride-grafted polystyrene-polyethylene-butylene-styrene)-polystyrene triblock copolymers, polystyrene-polybutadiene-poly(styrene-butadiene)-polybutadiene block copolymers, hydrogenated radial block copolymers, and mixtures thereof.