| 摘要 |
PROBLEM TO BE SOLVED: To provide a drying condition for suppressing the increase in the length of a dryer necessary for drying without generating surface ununiformity after drying in a drying method for applying a low viscous liquid on a web, on which a water soluble polymer layer is formed, and drying. SOLUTION: In the method for applying the coating liquid having <=3 cp viscosity on the web, on which the water soluble polymer layer is applied, and drying, the coating liquid applied on the water soluble polymer layer is dried at <=0.5 g/m2 sec evaporation rate when the undried remaining wet quantity W1 of the coating liquid in the drying process is in a range expressed by the formula, W2×0.8<=W1<=4g/m2+W2 wherein, W1 unit is (g/m2) and W2 expresses the water absorption (g/m2) of the water soluble polymer layer.).
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