| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an ink for detecting ozone and a card for detecting ozone, capable of more easily recognizing their color changes. SOLUTION: This ink for detecting ozone contains (1) a pigment component changing its color under an ozone atmosphere and (2) a pigment component not changing its color under the ozone atmosphere, and the card for detecting ozone is provided by forming a color changing layer for ozone by using the above ink. Especially, as the pigment component changing its color under the ozone atmosphere, an anthraquinone-based dyestuff having at least 1 kind amino group out of a primary amino group and secondary amino group.</p> |
