Tunable directional color transition compositions and methods of making and using the same
Color change compositions that transition from a first to second color state upon application of an applied stimulus are provided. Also provided are substrates having the compositions on a surface thereof, as well as methods of making and using the compositions.
1. An edible color change composition comprising:
a food-grade ingestible component;
a color former; and
a food-grade color developer that transitions from a first color state to a second color state upon application of an applied stimulus.
2. The color change composition according to claim 1 , wherein the food-grade color developer is a wax.
3. The color change composition according to claim 2 , wherein the wax comprises fatty acid esters.
4. The color change composition according to claim 2 , wherein the wax comprises esterified fatty diols and hydroxylated fatty acids.
5. The color change composition according to claim 1 , wherein the food-grade color developer is a carnauba wax.
6. The color change composition according to claim 5 , wherein the food-grade color developer further comprises beeswax.
7. The color change composition according to claim 5 , wherein the food-grade color developer further comprises coconut oil.
8. The color change composition according to claim 1 , wherein the food-grade color developer is a glycerol monostearate wax.
9. The color change composition according to claim 8 , wherein the food-grade color developer is an edible glycerol monostearate wax.
10. The color change composition according to claim 1 , wherein the color former changes color in response to a phase transition of the food-grade color developer.
11. The color change composition according to claim 1 , wherein the applied stimulus is a temperature stimulus.
12. The color change composition according to claim 1 , wherein the applied stimulus is solvation.
13. The color change composition according to claim 1 , wherein the transition is reversible.
14. The color change composition according to claim 1 , wherein the transition is irreversible.
15. The color change composition according to claim 1 , wherein the color former is a thermochromic dye.
16. The color change composition according to claim 1 , wherein the composition comprises two or more distinct leuco dyes.
17. The color change composition according to claim 16 , wherein the two or more distinct leuco dyes exhibit opposing color transition characteristics in response to the same applied stimulus.
18. The color change composition according to claim 1 , wherein the one or more of the components of the color change composition is micro-encapsulated.
19. The color change composition according to claim 1 , wherein the color change composition changes color in a time dependent manner.
20. The color change composition according to claim 1 , wherein the color change composition changes color in a time and temperature dependent manner.
21. The color change composition according to claim 1 , wherein the food-grade ingestible component is a food additive.
22. The color change composition according to claim 21 , wherein the food-grade ingestible component is a flavorant.