An aerosol generating article is provided, including a combustible carbonaceous heat source; an aerosol-forming substrate; and a thermal indicator provided on an outer surface of the aerosol-generating article downstream of the combustible carbonaceous heat source. The thermal indicator includes at least one reversible thermochromic material that undergoes a first reversible visible colour change when a temperature of the thermal indicator rises to a first switching temperature and a second reversible visible colour change when a temperature of the thermal indicator falls to a second switching temperature. The first switching temperature is below about 80 C. and the second switching temperature is lower than or equal to the first switching temperature.

A flake including a reflector layer having a first surface, and a second surface opposite the first surface; and a first selective light modulator layer external to the first surface; wherein the first selective light modulator layer includes a colorant having a first color that changes to a second color upon application of energy is disclosed. A method of making a composition is also disclosed.

A flake including a reflector layer having a first surface, and a second surface opposite the first surface; and a first selective light modulator layer external to the first surface; wherein the first selective light modulator layer includes a colorant having a first color that changes to a second color upon application of energy is disclosed. A method of making a composition is also disclosed.

A leuco composition comprises at least one leuco compound, the leuco compound comprising a leuco moiety and a polyalkyleneoxy moiety covalently bound to the leuco moiety. The polyalkyleneoxy moiety comprises at least one ethylene oxide group and at least one propylene oxide group. A laundry care composition comprises (a) at least one laundry care ingredient and (b) a leuco composition as described above. A method of treating a textile includes the steps of (a) providing such a laundry care composition; (b) adding the laundry care composition to a liquid medium; (c) placing textile articles in the liquid medium; (d) optionally, rinsing the textile; and (e) drying the textile articles.

A leuco composition comprises at least one leuco compound, the leuco compound comprising a leuco moiety and a polyalkyleneoxy moiety covalently bound to the leuco moiety. The polyalkyleneoxy moiety comprises at least one ethylene oxide group and at least one propylene oxide group. A laundry care composition comprises (a) at least one laundry care ingredient and (b) a leuco composition as described above. A method of treating a textile includes the steps of (a) providing such a laundry care composition; (b) adding the laundry care composition to a liquid medium; (c) placing textile articles in the liquid medium; (d) optionally, rinsing the textile; and (e) drying the textile articles.

A laundry care composition including (a) at least one laundry care ingredient and (b) a leuco composition including at least one leuco compound. The leuco compound including a leuco moiety and a polyalkyleneoxy moiety covalently bound to the leuco moiety. The polyalkyleneoxy moiety includes at least one ethylene oxide group and at least one propylene oxide group. A method of treating a textile includes the steps of (a) providing such a laundry care composition; (b) adding the laundry care composition to a liquid medium; (c) placing textile articles in the liquid medium; (d) optionally, rinsing the textile; and (e) drying the textile articles.

Please substitute the new Abstract submitted herewith for the original Abstract: A temperature detecting material comprises a first material containing a first temperature indicating material and a second material containing a second temperature indicating material, wherein the first temperature indicating material and the second temperature indicating material contain a leuco dye, a color developing agent, and a decoloring agent, and have a hysteresis characteristic in their color density-temperature curves, wherein the first temperature indicating material has a color developing temperature in a temperature increase process lower than a decoloring temperature in the temperature increase process, and turns to a non-crystalline state and is kept in a decoloring state when cooled down below the color developing temperature in the temperature increase process with a predetermined cooling speed or more after melting, wherein the second temperature indicating material, a color developing temperature is lower than a decoloring temperature in the temperature increase process, and wherein the color developing temperature in the temperature increase process is lower than the decoloring temperature in the temperature increase process and the color developing temperature is lower than the color developing temperature in the temperature increase process.

Please substitute the new Abstract submitted herewith for the original Abstract: A temperature detecting material comprises a first material containing a first temperature indicating material and a second material containing a second temperature indicating material, wherein the first temperature indicating material and the second temperature indicating material contain a leuco dye, a color developing agent, and a decoloring agent, and have a hysteresis characteristic in their color density-temperature curves, wherein the first temperature indicating material has a color developing temperature in a temperature increase process lower than a decoloring temperature in the temperature increase process, and turns to a non-crystalline state and is kept in a decoloring state when cooled down below the color developing temperature in the temperature increase process with a predetermined cooling speed or more after melting, wherein the second temperature indicating material, a color developing temperature is lower than a decoloring temperature in the temperature increase process, and wherein the color developing temperature in the temperature increase process is lower than the decoloring temperature in the temperature increase process and the color developing temperature is lower than the color developing temperature in the temperature increase process.

Compositions and methods related to polymeric materials with thermochromic pigments are generally described.

Compositions and methods related to polymeric materials with thermochromic pigments are generally described.