Business forms constructed from coated single sheets...

Details Business forms constructed from coated single sheets... Business forms constructed from coated single sheets...

B - Operations, Transporting

41

L

282/11, 117/15

B41L 1/22 (2006.01) B41L 1/26 (2006.01) B41L 1/36 (2006.01) B65D 27/00 (2006.01)

Patent

CA 1079322

ABSTRACT OF THE DISCLOSURE Single sheets coated front and back with chemicals capable of reacting with one another to produce a colored mark are used to construct business forms such as envelopes and manifold sets. The sheet has two fold lines allowing one end panel to be folded over the middle panel and allowing the other end panel, which may be a detachable receipt section to be folded over the first end panel. The first end panel and the middle panel may constitute an envelope. Upon application of pressure to the receipt section or to the top part of a manifold set the contacting coated back of the receipt section is forced into reactive contact with the coated front of the underlying panel to produce the colored mark. Thus, information applied to the outside receipt section can be duplicated on the underlying mating panel.

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