Browse Prior Art Database

HOT MELT EXTRUSION PROCESS FOR BINDING

IP.com Disclosure Number: IPCOM000027029D
Original Publication Date: 1994-Dec-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 74K

Publishing Venue

Xerox Disclosure Journal

Abstract

Documents bound on production publishing systems presently employ an adhesive binder tape and two separate coverstock sheets, which require a multi-step operation and produces documents of limited thickness and unprofessional appeal. It is desirable to create bound documents of any size or thickness and with a more professional look than can be offered with current binder tape technology.

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XEROX DISCLOSURE JOURNAL

HOT MELT EXTRUSION PROCESS FOR BINDING U.S. C1.355/324 Lois A. Eckstrom
Michael A. Curtis
Colleen A. Helbig
Sharon R. Hiergesell
Richard J. Malter

Proposed Classification

Int. C1. G03g 21/00

Documents bound on production publishing systems presently employ an adhesive binder tape and two separate coverstock sheets, which require a multi-step operation and produces documents of limited thickness and unprofessional appeal. It is desirable to create bound documents of any size or thickness and with a more professional look than can be offered with current binder tape technology.

To meet this demand, production publishing systems can employ an in-line hot melt glue extrusion process to create bound documents. This process offers advantages such as custom on-demand applications, durability of the finished document, unlimited document thickness, and cost savings in terms both of time and of materials.

Bound documents are prepared by generating the sheets in stacks to be bound and transporting the stacks to a binding station. The thickness of the stack is determined by any suitable method, such as by employing an optical sensor device. A hot melt glue applicator head is then set to activate cover scoring pins or rollers which transverse the to-be-bound edge of the stack, and a rubberized hot melt adhesive is deposited on the side of the document with the applicator. A wrap-around cover sheet to bind the document is also scored to match the thick...