Method of and apparatus for maintaining uniform hot melt coating

Details Method of and apparatus for maintaining uniform hot melt coating Method of and apparatus for maintaining uniform hot melt coating

1988-11-14

1989-11-28

Beck, Shrive

Coating processes

Immersion or partial immersion

Running lengths

4272082, 427256, 118 60, 118410, 118681, 118666, B05D 126

Patent

active

048836915

ABSTRACT:
Uniformity of hot melt coatings on thermally sensitive plastic and other webs is maintained by use of a silicone or other rubber-like web back-up roll the dimensional stability of which is maintained during hot melt coating of the webs by a heat-conducting idler roll directly contacting the back-up roll temperature and a heat transfer source for temperature deficiencies on the silicone roll surface, aiding constant nozzle-to-web spacing irrespective of temperature variations and line speeds. Provision is also made for the introduction of chilling, if required.

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patent: 4476165 (1984-10-01), McIntyre
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