method for manufacturing a thin book you by binding of sheets in a glue - cover and booklet, vervaarigd by application of the method.

摘要

1529723 Bookbinding; book covers GBC MFG CORP 20 Oct 1975 [21 Oct 1974] 42999/75 Heading B6A In a method of making booklets, heat reactivatable adhesive 12a, 12b is applied to book cover stock on both sides of a centre fold line 14. The cover is then folded to form a V-shaped crotch, sheets or signatures 20 are jogged into the positions shown and heat from a fixed or oscillating heater (22), Fig. 4 (not shown), is applied to the outside of the cover. The fold line 14 is squeezed manually or by nip rolls to effect binding. The adhesive may be covered by release paper, powder or particles and extend to creases 13.