초록 ▼

Colored or metallic foil is applied to toner printed onto a substrate, such as paper, in a high speed, versatile manner, using a rotating impression cylinder, and a rotating transfer cylinder having circumferentially spaced heated raised portions. The toner, which preferably includes a thermoplastic

Colored or metallic foil is applied to toner printed onto a substrate, such as paper, in a high speed, versatile manner, using a rotating impression cylinder, and a rotating transfer cylinder having circumferentially spaced heated raised portions. The toner, which preferably includes a thermoplastic component, is applied to the paper with any suitable printer, such as a computer controlled MIDAX (ion deposition) print engine. The toner may be heated by an infra red heater just before the paper is fed to the nip between the impression and transfer cylinders. A foil strip having an adhesive layer facing outwardly, a foil layer, and a release coating on a backing, is also fed to the nip, and the backing taken up downstream of the nip. Heat and pressure applied at the nip transfer the adhesive and foil from the foil strip to the tacky toner, producing the desired foil printed paper, which then may be further processed.

대표청구항 ▼

[ What is claimed is:] [1.]1. Apparatus for producing a printed substrate web a speeds of at least 100 ft./min., the web having colored or metallic foil over at least a portion of the printing on the substrate web, said apparatus comprising:means for variably printing a predetermined pattern, with t

[ What is claimed is:] [1.]1. Apparatus for producing a printed substrate web a speeds of at least 100 ft./min., the web having colored or metallic foil over at least a portion of the printing on the substrate web, said apparatus comprising:means for variably printing a predetermined pattern, with toner, on the substrate web while the web is traveling at speeds of at least 100 ft./min.;an impression cylinder mounted for rotation about a first axis;a transfer cylinder mounted for rotation about a second axis parallel to said first axis, and to define a nip between said impression cylinder and said transfer cylinder;means for continuously feeding the substrate web to and past the nip between the transfer cylinder and impression cylinder, with the toner pattern on the substrate web facing the transfer cylinder, at speeds of at least 100 ft./min.;means for feeding a foil strip having an adhesive, a foil, and a backing, to the nip with the adhesive and foil facing the impression cylinder;means for taking up the foil strip backing after passage of the foil strip through the nip; andmeans for heating said transfer cylinder to facilitate transfer of the adhesive and foil from the foil strip to the toner pattern on the substrate web.