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US 5,672,030 AGranted
Method of making books
AssigneeBerryville Graphics
InventorRobert Wayne Dean
Life of this patent
Estimating the term…
Abstract
A stack of unbonded perforated book signatures receives cold pva adhesive applied to the spine and hot eva adhesive is promptly applied in not more than approximately ten minutes prior to setting of the cold adhesive to permit the fabrication of a book of greatly enhanced durability.
Claims13
A method of making a durable and long lasting book comprising the steps of:
- (a) providing a stack formed of a plurality of unbonded perforated collated signatures;
- (b) applying cold pva adhesive to the perforations of the stack so that the cold pva adhesive moves inwardly of the perforations;
- (c) passing the stack through heating means to partially dry the cold pva adhesive and form a book block;
- (d) within approximately ten minutes or less following step (c), passing the book block through a round and backer to provide a curved configuration and increase the surface area of the spine of the book block;
- (e) applying a layer of hot eva adhesive to the surface area of the spine of the book block immediately after it leaves the round and backer so that the hot eva adhesive mingles with and bonds to the previously applied cold pva adhesive;
- (f) applying a layer of reinforcement material over the layer of hot eva adhesive;
- (g) applying a second layer of hot eva adhesive over the layer of reinforcement material;
- and
- (h) applying a case to the book block to form a book.
6 more elements
A method of making a durable and long lasting book comprising the steps of:
- (a) providing a stack formed of a plurality of unbonded perforated collated signatures;
- (b) applying cold pva adhesive to the perforations of the stack so that the cold pva adhesive moves inwardly of the perforations;
- (c) passing the stack through heating means to partially dry the cold pva adhesive, to form a book block;
- (d) prior to the setting of the cold pva adhesive, passing the book block through a round and backer to provide a curved configuration and increase the surface area of the spine of the book block;
- (e) applying a layer of hot eva adhesive to the surface area of the spine of the book block immediately after it leaves the round and backer so that the hot eva adhesive mingles with and bonds to the previously applied cold pva adhesive;
- (f) applying a layer of reinforcement material over the layer of hot eva adhesive;
- (g) applying a second layer of hot eva adhesive over the layer of reinforcement material;
- and
- (h) applying a case to the book block to form a book.
6 more elements
Dependencies are inferred from the claim text.