Method of screen printing and application of hot melt upon moving web substrates
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United States of America Patent
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Mar 27, 1990
Grant Date -
N/A
app pub date -
Sep 7, 1988
filing date -
Sep 7, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A novel hot-melt and other viscous fluid and coating screen-printing method and apparatus in which a line of fluid is extruded against a predetermined region of a rotary screen opposite which a web is drawn to transfer the fluid extruded at said region through the screen pores, with large cross-section fluid extrusion sealed against the inner wall of the screen as the same rotates past said region, and with features of fluid pressure and screen heating synchronous and proportional to line speed, inerted inner screen cavity construction (and possible exterior inerting of the screen, and novel web drawing roller positioning, including web-movement rotation of the screen, and all accommodating high viscosty fluids and high web speeds.
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