GCM 250 Chapter Notes - Chapter 4: Concertina, Bookbinding, Double Gate
29 Nov 2016
School
Department
Course
Professor
Document Summary
Kind of press used and if further processing of the folded sheet is needed: features of flat bookbinding sheets: Sheet numbers = signature: classification of different types of folded signatures: Number of folds: 0, 1, 2, 3, 4-fold. Symmetrical fold positions: fold halves the original format. Combination folds: folding variations are limited by; Quality demands (limitations by # of folds) Variability of the folding machines: types of folded sheets: Gate folds: variations of 2-up folded sheets. 2-up genuine: same folded signatures stand above one another. 2-up (cid:862)co(cid:373)e a(cid:374)d go(cid:863): first sheet is folded a(cid:374)d fi(cid:374)ished with the last sheet, the seco(cid:374)d sheet with the pe(cid:374)ulti(cid:373)ate sheet . Printers and bookbinders also agree on the definition of folded sheet families (base sheets: there are three methods used to layout the page: Computer-aided page division: folding pattern catalogs: Creator of the graphic product selects a folding layout from catalog.
