Book binding method
AssigneeWilliam C. Heller, Jr.
InventorLeonard Shatzkin
Life of this patent
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Abstract
An improved technique of forming the hinge joint of a hard bound book. An adhesive is applied over the animal glue on the hinge area of the cover and allowed to dry. Thereafter, the body, coated with a synthetic resin, may be joined to the hinge area to bind the book. Priming the animal glue with the adhesive overcomes the bonding incompatibility which has heretofor existed between the animal glue and the synthetic resins and which has resulted in a weakening of the hinge.
Claims10
A method of securing a book body along the hinge area of a book case, said hinge area having a surface presenting an exposed layer of polyamide glue in the wet state, said method comprising the steps of:
- applying an adhesive primer comprised of a polyvinyl acetate adhesive carried in a water base to the layer of glue before the glue has dried, said primer being compatable with said polyamide glue and a bonding agent of the synthetic resin type;
- thereafter drying the primer and the glue;
- applying said bonding agent of the synthetic resin type to one of the primed hinge areas of the case and the book body said bonding agent having a thermally induced period of liquidity;
- allowing said bonding agent to assume a solid state;
- applying liquifying heat to the bonding agent;
- bringing the primed hinge area of the case and the book body into contact with the bonding agent in the liquid state;
- and
- allowing the bonding agent to cool for forming a bond between the hinge area of the book case and the book body.
Dependencies are inferred from the claim text.