Underlay for writing has glue applied to two opposite endfaces of sheet stack with all sheets glued together on one endface and at least backing sheet free of glue on other

摘要

The writing underlay consists of a stack of sheets and a reinforced bottom backing sheet, with glue on at least one endface of the stack. The glue (4, 5) is applied to two opposite endfaces (8, 9) of the sheet stack (1). On one endface (8), all the sheets (2, 3) are glued to each other. On the opposite endface (9), at least the bottom backing sheet is free of glue.