Patent ID: 8196312

Claim:
A drying method for drying an object containing a first solvent while the object is conveyed,-comprising: a first drying step of drying the object up to a drying point; and a second drying step of forming, in a drying chamber at a post stage of the first drying step, a vapor atmosphere of a second solvent having a lower boiling point than the first solvent and drying the object such that a temperature of the object in an inlet port of the drying chamber is made to be lower by a predetermined temperature difference than a temperature of the vapor atmosphere, wherein 0.25 ≦CR (273.15 +T )/( P T ×M )<1.0 is satisfied where a vapor amount of the second solvent is denoted as C [g/m 3 ]; a temperature of the object is denoted as T [° C.]; a saturated vapor pressure of the second solvent at T° C. is denoted as P T [Pa]; the molecular weight of the second solvent is denoted as M; and the gas constant is denoted as R (8.31 Pa·m 3 /(mol·K)).