Textiles: cloth finishing – Expanding device for textile webs – Spreader
Patent
1991-08-23
1993-11-09
Crowder, Clifford D.
Textiles: cloth finishing
Expanding device for textile webs
Spreader
26 90, 26106, D06C 302
Patent
active
052590976
ABSTRACT:
A pair of stretching pulleys are rotatably mounted on a pair of support plates within a housing. A belt is wound around the upper part of the stretching pulley and a number of turn pulleys. A film introduced onto the stretching pulley is held between the belt and the stretching pulley and is transferred. Air flow generated by a fan and heated with a heater is blown against the film through a louver and circulates through bellows mounted to the housing to return to the fan. The stretching pulley is partially cooled in a water bath. The support plates are rotatably connected to screw shafts, thereby changing a distance and angle between the plates. The stretch width or stretch ratio of the film is thus adjusted with the change of the distance and angle.
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Aihara Kintaro
Honda Tadashi
Kobayashi Masashi
Kurihara Kazuhiko
Ohishi Toshikazu
Crowder Clifford D.
Nippon Petrochemicals Co. Ltd.
Polymer Processing Research Institute Ltd.
Vanatta Amy B.
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