Apparatus and method for applying sprayed fluid to a moving web
This invention is concerned with the application of sprayed fluid to surfaces of an object such as a moving web, and is more particularly concerned with apparatus that includes a pair of vertically separated spray generating units for applying fluid to opposite surfaces of a web that moves horizonta...
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| Format | Patent |
| Language | English |
| Published |
29.04.2003
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| Online Access | Get full text |
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| Summary: | This invention is concerned with the application of sprayed fluid to surfaces of an object such as a moving web, and is more particularly concerned with apparatus that includes a pair of vertically separated spray generating units for applying fluid to opposite surfaces of a web that moves horizontally between the units, and with the control of spray patterns.
Apparatus and method for spray coating of a horizontally moving web uses a spray-down unit that sprays downwardly onto the web and a spray-up unit that sprays upwardly onto the web. Each unit has adjustable cut-offs that control the length of the spray pattern by intercepting end portions of the spray pattern. The cut-offs of each unit can be adjusted to block a spray emission opening so as to prevent the entrance of contaminants when the unit is not in operation. Fluid intercepted by the cut-offs is returned for re-use. Both units are supported on a frame, and the spray-down unit can be moved away from the spray-up unit. |
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