Books – strips – and leaves – Book – element thereof – or accessory therefor – Binding
Patent
1995-06-05
1997-03-25
Fridie, Jr., Willmon
Books, strips, and leaves
Book, element thereof, or accessory therefor
Binding
281 36, 412 36, B42D 100
Patent
active
056137117
ABSTRACT:
An adhesive binding strip for binding pages in the form of a book. The adhesive binding strip includes an elongated substrate made of a formable material. A band of heat-activated adhesive runs down the central portion of the substrate. A matrix of heat-activated adhesive is placed on the substrate around all edges of the adhesive band. The matrix is spaced apart from the longitudinal edges of the substrate to form longitudinal regions where tapered adhesive sections of the matrix are disposed. The tapered sections have an average thickness which is at least two-thirds that of the remainder of the adhesive matrix. The adhesive band, which has a low viscosity under activation conditions, binds the pages of a book to each other and to the substrate. The adhesive matrix has a high viscosity under activation conditions, serves to bind the entire substrate to the book, while preventing the adhesive band from running out from under the substrate during the binding process. The adhesive matrix also increases overall strength of the binding, especially with respect to the front and back cover pages of the book. The tapered sections of the matrix function so as to permit lateral movement of the adhesive of the relatively thick matrix during the binding process.
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Fridie Jr. Willmon
Powis Parker Inc.
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