GRA 423 Final: Exam Review Notes
5 Jul 2016
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Document Summary
Often impositions are defined or classified by binding style: saddle stitch. Sigs are nested one inside another onto a device called saddle, and combined sigs are stitched (stapled) together. Considerations: creep/push out, self cover, thickness: perfect bound/case bound. Sigs are collected and stacked one on top of another, spine is ground, adhesive applied and cover wrapped around. Cover is always separate and needs compensation for spine thickness. Digital tone is thick (must measure printed digital mockup: mechanical bound. Usually no imposition as pages are printed one up, size as, with no post- processing: come and go. Used to produce two small copies of the same book that are perfect-bound together on a common edge and then cut apart. Advantage; faster bind at same time, cut apart after (cuts binding time in half: cut and stack. Used for jobs printed on on-demand output devices to produce different parts of a job simultaneously.
