Bookbinding cover

Details Bookbinding cover Bookbinding cover

1990-12-05

1992-10-20

Eley, Timothy V.

Bookbinding: process and apparatus

Process

Of adhesive binding

412 37, 156325, 281 211, B42C 900

Patent

active

051565102

ABSTRACT:
A bookbinding cover has a front cover, a rear cover and a back plate which is connected to the front and rear cover, and a hot-melt adhesive layer applied to the back plate. The adhesive layer has a multi-layer structure, and the softening point of each of the layers which form the adhesive layer decreases with an increase in distance from the back plate. The bookbinding cover permits simple bookbinding with sufficient strength for a short time.

REFERENCES:
patent: 3837994 (1974-09-01), Flanagan et al.
patent: 3847718 (1974-11-01), Watson
patent: 4289330 (1981-09-01), Wiermanski
patent: 4749427 (1988-06-01), Pitts et al.
patent: 4750956 (1988-06-01), Malachowski
patent: 4762341 (1988-08-01), Rabuse

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