A Primer on Bindery Hangers and Backbone Stripping:
What is a Bindery Hanger? A Bindery hanger is a carrier used to place an insert (usually a booklet) into a saddle stitched book. The carrier is a short, folded piece of tag stock, to which an insert is attached with removable fugitive glue. The insert can be smaller than the book into which it is bound, or it can be as large as the book and take head, foot, and/or face trims when stitching. As such, it becomes its own 4-page signature that can be positioned anywhere between the other signatures in a saddle stitched book.
What is Backbone Stripping? Backbone stripping provides the same benefits for perfect bound books that bindery hangers do for saddle stitching. Backbone stripping involves attaching a three-quarter-inch wide strip of tag stock to the spine of an insertleaving a one-half-inch overhang which binds into the publication with the other signatures. This method prevents the finisher from grinding off any of the piece during the binding process and, because it is usually perfed and fugitive glued, allows the end user to remove the piece easily without damaging the book or the insert.
Why use a Bindery Hanger or Backbone Stripping? Bindery hangers and backbone strips provide flexibility to position an insert between any of the signatures in a book. These choices provide more targeted options for getting to the end users most likely to make use of your information. Readers can remove the insert from the saddle stitched or perfect bound book and (hopefully) make a buying decision as a result!
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