Coating method apparatus for capsular coatings

Coating processes – Roller applicator utilized

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Details

118246, 118249, 118262, 427150, 427152, B05D 128

Patent

active

042822750

ABSTRACT:
A metered film of a fluid coating composition (10) having solids suspended therein, such as a fluid composition containing rupturable microcapsules, is formed on a doctored gravure supply roll (12) and applied to a soft rubber applicator roll (20). The supply roll (12) transfers the metered coating composition (10) to an endless web (25) which is wrapped and tensioned therearound in substantially uncompressed contact, to transfer the metered coating composition uniformly and evenly to the web (25) without shearing the composition (10) when on the web (25) or mechanically pressing the solids therein into the web (25).

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