Abstract:
D R A W I N G THIS INVENTION PROVIDES A NEW WAY OF ATTACHING CARBONLESS COPYING SHEETS IN LAYERED ASSEMBLY, EACH SHEET EXCEPT ONE OUTER SHEET HAVING A COATING ON ONE SIDE. THE ATTACHMENT IS BY ADHESIVE APPLIED TO AN UNCOATED SURFACE OF ONE OUTER SHEET AND THE JOINING OF IT WITH AN UNCOATED SURFACE OF THE OTHER OUTER SHEET BY AN APPROPRIATE STRUCTURE TO GET A SECURE ADHESIVE BOND TO HOLD THE SHEETS IN ASSEMBLED RELATIONSHIP.
Abstract:
Continuous webs each comprised of detachable form units for especially forming booklets, each web having longitudinal lines of self-sealing adhesive along both web surfaces near opposite marginal edges thereof and displaced in such a manner as to permit each web to be independently rolled or the form units of each web to be respectively stacked without self-adhering. The booklets are assembled by alternating the detached units of the webs in a collating-type operation and slitting along the longitudinal center line, or by longitudinally folding and slitting each detached unit of either web along its longitudinal center line.
Abstract:
This invention provides a new way of attaching carbonless copying sheets in layered assembly, each sheet except one outer sheet having a coating on one side. The attachment is by adhesive applied to an uncoated surface of one outer sheet and the joining of it with an uncoated surface of the other outer sheet by an appropriate structure to get a secure adhesive bond to hold the sheets in assembled relationship.