Dryness detection method and dryness detection apparatus

Abstract

A dryness detection method of detecting dryness of a liquid resin composition containing a solvent. The dryness detection method includes a wavelength selection step of selecting a light absorption wavelength of the solvent, a light source selection step of selecting a light source that emits light including light of the selected wavelength, a light receiving step of applying the light that has been emitted from the light source to the liquid resin composition, and receiving light that has passed through the liquid resin composition, and a determination step of finding whether or not the light of the selected wavelength after absorption in the solvent in the light receiving step exceeds in quantity a predetermined threshold, and if the threshold is found to be exceeded, determining that the solvent has evaporated and the liquid resin composition has dried. A dryness determination apparatus is also disclosed.

Dependencies are inferred from the claim text.