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Title: Coated paper

Abstract: Microcapsule coated sheet material for use in pressure sensitive copying systems is produced by a method which comprises forming an aqueous coating composition containing microcapsules, particulate stilt material and a biner, foaming the coating composition, applying the foamed composition to a web of sheet material, and metering the composition on the web to a desired coating weight by means of a metering member, for example a blade which preferably is flexible, in contact with the coating composition on the web. The foamed composition is preferably applied to the web by means of a fountain applicator.


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Inventors: Robertson, Neil George Douglas (Marlow Bottom, EN)

Application Number: 590681
Filing Date: 1975-06-26
Publication_date: 1977-07-26
Assignee: Wiggins Teape Limited (London, EN)
Primary Class(es): 503/207 427/153, 427/345, 427/358, 427/369, 427/373, 521/55, 521/84.1, 521/188
Other Classes:
US Patent Ref:
3607341Sep, 1971Goins et al.427/373.
3897578Jul, 1975Kanda et al.427/358.

Other Refs:
Primary Examiner: Lusignan, Michael R.
Assistant Examiner:
Attorney: Burns, Doane, Swecker & Mathis