Process and apparatus for applying partial surface coatings

Details Process and apparatus for applying partial surface coatings Process and apparatus for applying partial surface coatings

B - Operations, Transporting

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Patent

CA 1183736

ABSTRACT A textile substrate is unwound, preheated in a preheating zone and partly coated in a coating station by means of a coating head with coating nozzles, the substrate being supported by a base. The substrate then undergoes further heating in a continuous passage section for the further melting of the thermoplastic materials or for drying or condensing out the thermo- setting plastics or other pasty materials. This is followed by calendering in a calender with subsequent winding onto a winding-on device. By means of the coating nozzles associated with the coating heads, it is possible to perform a plurality of partial surface coatings without, as in the known devices, having to replace important parts. It is also possible for the coating materials to be produced as untreated granular materials. (Fig 4).

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