Gas indicator and gas sensor sheet
OwnerHiroshi Inoue, Satoshi Maruyama +1inventors
InventorsHiroshi Inoue, Satoshi Maruyama, Masahiro Yasunaga
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Abstract
A gas indicator, which can be used over a broad range of gas concentration from a low concentration gas to a high concentration gas, includes a substrate sheet and plural change-color layers formed from a gas sensor ink on said substrate. The plural change-color layers are formed parallel to each other in a stripe pattern. The gas sensor ink contains an anthraquinone dye having at least one of a primary amino group or a secondary amino group.
Claims7
A gas sensor sheet comprising a substrate sheet and plural change-color layers formed from a gas sensor ink on said substrate, said plural change-color layers being formed parallel to each other in a stripe pattern,
- wherein the gas sensor ink contains an anthraquinone dye having at least one of a primary amino group or a secondary amino group.
Dependencies are inferred from the claim text.