Carbonless manifold business forms

Details Carbonless manifold business forms Carbonless manifold business forms

B - Operations, Transporting

41

L

282/11

B41L 1/36 (2006.01) B41L 1/22 (2006.01)

Patent

CA 1093602

ABSTRACT OF THE DISCLOSURE A set of manifold business forms includes at least three plies having selected mating surfaces coated with chemicals which are capable of reacting with one another to produce a colored mark An intermediate ply of the set is of tissue material having its back surface coated with a color precursor in the form of a microencapsulated liquid, and the bottom ply of the set is of an opaque material having its front surface coated with a composition of a generally solid record-developing material. The top ply of the set is likewise of an opaque material so that, upon the application of pressure to the set, an image is developed on the top surface of the bottom ply. The use of a coated-back tissue avoids capsular damage during the printing operation of the forms since all that is printed is a coated front sheet. In another embodiment, a web capable of being zigzag folded is coated on both sides with a composition of a generally solid record-developing material, tissues being interleaved between the folds of the web and having their back surfaces coated with a color precursor in the form of a microencapsulated liquid. Again, application of pressure to the set develops an image on the top surfaces of each section of the folded web which underlies the tissues.

281653

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