Browse Prior Art Database

Crosslinked Transfer Media

IP.com Disclosure Number: IPCOM000090900D
Original Publication Date: 1969-Aug-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Findlay, HT: AUTHOR [+4]

Abstract

Polymer matrix transfer media comprise a spongeous continuous phase of polymer containing a pressure expressible liquid or semisolid marking material in the pores of the polymer phase. The strength, curl resistance and moisture sensitivity of the transfer media are improved by a process which cross-links the polymer. NYLON* polyamide, and a crosslinking agent, 2-methyl-anthraquinone are dissolved in the solvent ethanol. To the ethanol solution is added liquid ink and a filler. The solution is cast onto a 1 mil thick polyester substrate. The coating is heated to remove the ethanol and form a layer, 18 lbs. per ream, of polymer matrix containing the ink in the pores of the matrix. A backing layer, 5 lbs.

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Crosslinked Transfer Media

Polymer matrix transfer media comprise a spongeous continuous phase of polymer containing a pressure expressible liquid or semisolid marking material in the pores of the polymer phase. The strength, curl resistance and moisture sensitivity of the transfer media are improved by a process which cross-links the polymer. NYLON* polyamide, and a crosslinking agent, 2-methyl-anthraquinone are dissolved in the solvent ethanol. To the ethanol solution is added liquid ink and a filler. The solution is cast onto a 1 mil thick polyester substrate. The coating is heated to remove the ethanol and form a layer, 18 lbs. per ream, of polymer matrix containing the ink in the pores of the matrix. A backing layer, 5 lbs. per ream dry weight, of nylon and 2-methyl-anthra-quinone in ethanol is coated onto the matrix layer and the ethanol evaporated. The NYLON-backed matrix layer is stripped from the polyester substrate and cut to size. The cut material is irradiated for from 50-60 seconds with a 300-400 mu range 350 watt lamp at a distance of approximately 15 cm to produce a cross-linked polymer structure having improved strength, curl and moisture resistance. *Trademark of
E. I. du Pont de Nemours and Co.

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