| 摘要 |
In an oven used for printing machine and the like, drying is rendered possible to be conducted without decreasing traveling speed (120 m/min or more) by a short and compact drying zone for a coating liquid agent which is made aqueous as well as oily coating liquid agent. A plurality of hot air blow-off nozzles 222 are provided in the drying portion 220 of the first printing unit 200. Heating guide rolls 223a are provided at the former portion, and cooling guide rolls 223b are provided at the latter portion, so that they meet the hot air blow-off nozzles 222. Liquid delivery pipes 224a for injecting hot water are connected to the heating guide rolls 223a, and liquid delivery pipes 224b for injecting cooling water are connected to the cooling guide rolls 223b. Introduced raw web 1 is heated to the boiling point of solvent or higher than that by the heating guide rolls 223a. |
