Patent ID: 8567089

Claim:
An evaporation method for evaporating an organic solvent, the method comprising: preparing a fluid tube including at least a first fluid tube part and a second fluid tube part, each of the first fluid tube part and the second fluid tube part being a helical shape, the second fluid tube part being connected at a downstream side of the first fluid tube part through a connecting pipe, and a cross section of the second fluid tube part is larger than that of the first fluid tube part; supplying an organic solvent liquid to the one end of the first fluid tube part without mixing with an inert gas; supplying the inert gas to the connecting pipe between the first fluid tube part and the second fluid tube part; and evaporating the organic solvent liquid supplied to the one end of the first fluid tube part through heating the first fluid tube part and the second fluid tube part to discharge a mixed fluid of an organic solvent vapor and the inert gas from the other end of the second fluid tube part.