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US 6,607,629 B2Granted
Process for the perfect binding of printed articles
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorHermann Onusseit
Life of this patent
Estimating the term…
Abstract
Adhesive systems comprised of one or more photoinitiators and one or more adhesives capable of radiation-induced reaction are useful in one-step or multi-step perfect binding of books and other printed articles. The adhesive may be a low viscosity mixture of a monomer and/or polymer which is cross-linkable by UV or stronger electromagnetic radiation.
Claims35
A process for binding a plurality of individual pages comprising an inner book, said process comprising:
- (a) coating an edge of said the inner book with a layer of an electromagnetic radiation curable material which material comprises at least one photoinitiator and at least one adhesive (A) which, in the presence of such photoinitiator, is capable of a radical or cationic reaction induced by UV or other electromagnetic radiation having a wavelength below 600 nm and which has a viscosity at application temperature of 0.1 to 20 Pas;
- (b) exposing the layer of material to electromagnetic radiation having a wavelength below 600 nm to induce a reaction and to set the layer of adhesive (A);
- (c) applying a layer of adhesive (B) to the edge coated with the layer of set adhesive (A);
- and
- (d) affixing a cover or liner to the edge of the inner book utilizing the adhesive (B).
2 more elements
Dependencies are inferred from the claim text.