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John Sutherland replied to the topic Ink bleeding slightly… how to ensure a crisp print? in the forum Press Troubleshooting, Tips, and Help 14 years ago
Had another thought about the problem you are having, (there’s always more than one way of looking at things in this game) and have thought of a couple of other ways the problem could be solved.1/ A frisket bar could be used to steady the sheet. This is a bar that is affixed between the platenand type/block. It steadies the sheet as it comes down…[Read more]
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John Sutherland replied to the topic Offset printing 1 Side with Letterpress On Other in the forum Job Advice 14 years ago
Have you considered running your solid colour on letterpress? To do this without showing impression you could print the solid from a wood or metal- based plate (.918 thous high from memory) leaving plenty of bleed around the edges so that the heavy edge of the blockprint is later trimmed off. The rest of the solid would then have no discernable…[Read more]
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John Sutherland replied to the topic packing bed in the forum Press Troubleshooting, Tips, and Help 14 years ago
If your machine is a clam shell platen; packing usually consists of one piece of card (about business card thickness) taped to the platen surface, 2/3 sheets of newsprint, or something of a similar thickness, another sheet of card then an oiled- manila top sheet. The card affixed to the platen is designed to ensure that when you spike two holes…[Read more]
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John Sutherland replied to the topic Ink bleeding slightly… how to ensure a crisp print? in the forum Press Troubleshooting, Tips, and Help 14 years ago
Looking at your pics it could be to much impression overall. Ideally the impression should be just kissing the paper not squeezing to heavily into it. Maybe a fresh packing and less pressure might solve the problem.Ink may also be an issue. There used to be (I’m going back quite a few years here) an ink called G Man which was very stiff and less…[Read more]