Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site uw-beaver Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!vax135!cornell!uw-beaver!laser-lovers From: laser-lovers@uw-beaver Newsgroups: fa.laser-lovers Subject: materials for transparencies in Laser Printers Message-ID: <1005@uw-beaver> Date: Tue, 9-Apr-85 03:14:18 EST Article-I.D.: uw-beave.1005 Posted: Tue Apr 9 03:14:18 1985 Date-Received: Wed, 10-Apr-85 06:34:22 EST Sender: daemon@uw-beaver Organization: U of Washington Computer Science Lines: 31 From: Brian Reid As I watch the replies come back to Rick's note about transparencies I thought it would be worth mentioning the results of my explorations with transparencies in laser printers. There seem to be 3 kinds of material that overhead slides are made of: acetate, mylar, and polyester. The acetate slides are thick and fairly rigid and quite transparent. The mylar slides are thin and fairly flexible and very slightly milky. Polyester slides are thin but rigid. Acetate slides melt in laser printers or copiers. Acetate also takes fingerprints very easily, and is very susceptible to moisture. The reason that people use acetate at all is that it can be made to very high optical standards--very clear and very smooth. Mylar doesn't melt in laser printers, but it can be damaged by fingerprints and water. You can buy a special kind of mylar film that is treated with some form of silicone so that it is slippery enough to work in the paper-feed tray of laser printers or copiers that do not have single-sheet-feed capability (ask for Xerox brand copier transparencies at your office supply store). Polyester neither melts nor shows fingerprints, but it is quite difficult to write on polyester with erasable pens. I have never succeeded in getting polyester to feed from the paper tray; it is necessary to single-sheet-feed it. I use Stabilo polyester slides for everything--both for writing with pens and for printing in laser printers. It's great. Brian