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printech, July, 2000
Ink for non-heatset offset litho printing


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From:GaryJGATF(gjonesprinting@aol.com)
Date:Tuesday, July 11, 2000 8:43 AM


The answer to your question is that there are no fact sheets or case studies on this topic because water-based inks cannot be used in lithographic printing. Lithographic printing uses a plate that that the image and nonimage are in virtually the same geographic plane. The differences between the image and nonimage are maintained chemically. Lithographic printing is based on the fact that oil (i.e., ink) and water (i.e., fountain solution) do not mix. The image area is treated to be oil loving and the nonimage area treated to be water loving. Water based inks can be used in Flexographic and rotogravure systems because the image area is either raised as in flexo or recessed as in gravure. I have heard that several manufacturers are working on a single fluid lithographic system where the ink and fountain solution are mixed together, but I'm not sure how close this is to commercialization. If you have any more questions, please call or send me an email. Gary Jones Graphic Arts Technical Foundation 200 Deer Run Road Sewickley, PA 15143 412/741-6860 x608 - Phone 412/741-2311 - Fax



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