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Electron Beam Radiation Cured Matrix Ribbon

IP.com Disclosure Number: IPCOM000059902D
Original Publication Date: 1986-Feb-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Franey, TE: AUTHOR [+2]

Abstract

A no-solvent, high-speed of production, and efficiently manufactured printer ribbon is achieved using a urethane acrylate material polymerizable with a diacrylate monomer polymerized under an electron beam. The ribbon is a multistrike ribbon of the matrix or spongeous type generally of the kind disclosed in U.S. Patent 3,413,184. This ribbon has a distinct substrate upon which the matrix body is formed as a top layer. As is conventional, during use the substrate is impacted by the typing element, thereby forcing out ink held in the manner of a sponge from the matrix layer to effect printing. Such a ribbon is manufactured by electron beam curing as follows: Both the reactive system and the ink system are combined separately and thoroughly mixed by stirring.

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Electron Beam Radiation Cured Matrix Ribbon

A no-solvent, high-speed of production, and efficiently manufactured printer ribbon is achieved using a urethane acrylate material polymerizable with a diacrylate monomer polymerized under an electron beam. The ribbon is a multistrike ribbon of the matrix or spongeous type generally of the kind disclosed in U.S. Patent 3,413,184. This ribbon has a distinct substrate upon which the matrix body is formed as a top layer. As is conventional, during use the substrate is impacted by the typing element, thereby forcing out ink held in the manner of a sponge from the matrix layer to effect printing. Such a ribbon is manufactured by electron beam curing as follows: Both the reactive system and the ink system are combined separately and thoroughly mixed by stirring. REACTIVE SYSTEM Ingredient % By Weight Urethane Acrylate PHOTOMER 6008* 88 Hexane diol diacrylate 12 INK SYSTEM Ingredient % By Weight Acidic carbon black 21.5 Pigment Blue 15 phthalocyanine blue 21.5 Octyl oleate 47.2 Oleylamine 6.8

Oleic acid 3.0 The two systems are mixed in equal parts by weight shortly before ribbon is to be manufactured. They are thoroughly mixed by stirring and coated on a 1/4 mil polyethylene terephthalate film which will remain as the permanent substrate of the ribbon. Coating is to a fluid thickness of 0.7-0.8 mil, and the coated substrate is then moved at a speed of 600 feet per minute under an electron source of 5 MRads intensity. The compl...