Drying device intended for drying material bearing print issuing from a printing machine
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United States of America Patent
Stats
-
Nov 15, 1983
Grant Date -
N/A
app pub date -
Sep 30, 1981
filing date -
Oct 1, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drying device intended for drying material bearing print issuing from a printing machine consisting of a conveyor (4) for the material and adjacent heat-emitting elements (11). A flow of air (12) is so arranged as to pass over the conveyor (4) for the material, thereby absorbing volatile substances released by the ink on the material during the drying process. The speed of the flow of air (12) is set in relation to the level of volatile substances in a specific quantity of exhaust air (12a). The level of volatile substances is monitored continuously by a device (13) which is connected to a measuring instrument (14), the output signal of which controls a motor which adjusts the setting of a throttle valve (17), so that the concentration of volatile substances inside the drying device will be kept at or immediately below a maximum permissible value, thereby achieving considerable savings in energy.
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