| 摘要 |
A web processing apparatus is provided, particularly for drying the printed surface of a continuous web. The web is disposed in festooned relation between upper driving rolls and lower restraining rolls or guides disposed in the depending loops of the festooned web. The restraining rolls or guides have end rim portions which engage and support the web at its marginal edge portions. A plurality of web correction elements, such as toothed annular elements, are provided between the rim portions, and the web is normally held in spaced relation from the web correction elements but is engageable therewith for straightening out collapsed areas or inwardly deflected portions of the web as it passes around the restraining rolls or guides. Preferably, a gaseous medium is passed through an enclosure for the festooned web, and the arrangement permits relatively high flow rates and velocities without disturbing the web.
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