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Subject: Cronapress Conversion Film Author: Isabel [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 06:08:39 10/05/01 Fri In reply to: Dave Hughes 's message, "REQUESTS FOR INFORMATION" on 20:17:15 06/06/01 Wed Hello, my name is Isabel Endres and I work for a swedish pulp and paper research institute. My focus in the beginning of my PhD-studies is on specifically looking at the compression of paper. For some trials I was able to use Cronapress Conversion Film, which was produced by DuPont but is not in production anymore. I would like to know whether you know where to get more of this film from, since you might have been working with it some time. Cronapress. A trade name for DuPont's system of converting metal type or letterpress printing plates into film. This film can then be used to make offset plates, gravure cylinders, or very faithful duplicate letterpress plates. The material to be converted is covered with a special pressure-sensitive film and pressure is applied with vibrating steel balls or pins which coalesce the film to make it clear, or transparent, at the points at which the raised letterpress dots or type touch it. The material is then dyed to make the non-coalesced areas light-blocking. The result is a film negative. I pasted in a description of the film here. Thanks Isabel [ Next Thread | Previous Thread | Next Message | Previous Message ]

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Subject Author Date Details of printers lead alloy Richard Morris 06:31:44 12/27/01 Thu Linotype Metal David Evans 23:04:32 04/10/02 Wed