abstract |
A reversible thermochromic composition is provided. The present invention relates to a reversible thermochromic system comprising substituted or unsubstituted 6,11-dihydroxy-naphthacene-5,12-dione and a base, and the reversible thermochromic system and carrier material. Reversible thermochromic compositions comprising and novel substituted 6,11-dihydroxy-naphthacene-5,12-diones. [Selection figure] None |