Curtain coating method

Fluid sprinkling – spraying – and diffusing – Processes

Patent

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Details

Other Related Categories

118DIG4, 239193, 239455, 427420, B05B 136

Type

Patent

Status

active

Patent number

043424236

Description

ABSTRACT:
A coating of liquid starch is applied to a travelling paper web by an application comprising an elongate hollow box structure having a horizontal slot outlet along one side. Starch solution is forced from the chamber horizontally through the slot outlet then flows downwardly under gravity across an upright wall surface to establish a falling curtain of the starch solution. The wall surface terminates at a bottom blade edge and the curtain falls away from the surface at the blade edge to drop onto the paper web.

REFERENCES:
patent: 541660 (1895-06-01), Duffy
patent: 1538582 (1925-05-01), Olander et al.
patent: 1859652 (1932-05-01), Bullerjahn
patent: 1903236 (1933-03-01), Johnsen
patent: 2703760 (1955-03-01), Cunning
patent: 2745419 (1956-05-01), Slingerland
patent: 3271184 (1966-09-01), Poletika et al.

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