A booklet making method is disclosed whereby printed sheets in forming booklets are evenly set in position and their jam in transport is reduced and whereby booklets having an odd number of leaves or pages are formed without waste of paper.
The booklet making method is provided in which a continuous sheet of paper on one side 20a and a continuous sheet of paper on other side 20b parted by cutting from a web of paper are bonded together with a setting paste 40a and a throwaway paste 41a alternately at their widthwise other and one sides edges to form a double set continuous sheet of paper 50. The double set continuous sheet of paper 50 is cut into split double sheets 60 of a selected longitudinal length. A plurality of such split double sheets are integrally bound with an integrating paste 42a to form a booklet-like product 70. Portions of the booklet-like product 70 which are pasted and bonded with the throwaway paste 41a are cut off to provide a plurality of booklets 80. Thereby the booklets having an odd number of leaves or pages are formed without waste of paper.