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#1
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| Hi Guys, New here and just wondereing if anyone has recently noticed problems with ink drying on uncoated stocks ie. paper and boards 130/300 as we print a large amount of annual reports for both perfect binding and saddle stitching. Recently the jobs are not drying for a number of days and this is causing us a lot of problems, we are using hostmann ink printing on a 74 cd. The paper is made by UPM. Any ideas would be greatly appreciated. |
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#2
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| hi gerry is the paper your using Laser paper or just normal uncoated bond paper? i have always been told that (forlaser at least) there is a different type of ink you should use in order for it to dry. We used to rarley run uncoated stock for letter heads mainly and found the smae problem, but we didnt do anything about it. i will try to find out more info abou the ink. i assume if your using hostman ink your dealing with ultrachem, try speaking to the rep he should know about it. just out of intret do you sometimes get gohsting of ink in the background when running uncoated? |
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#3
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| You wouldn't by chance be using Toyo Inks would you? It has become a clear known fact that they have been screwing with the ink formulas without letting anyone know. We too have had a rash of drying issues on our 34DI using the Aqueless inks. Several months ago I could stack up to 800-1000 sheet of medium coverage ink on 12 x 18 70# Accent Opaque and let it dry for a couple of hours and run the back-up side without any offset issues at all. Now I have to limit my stacks to 250-400 depending on coverage, increase my powder double what I used to (from a setting of 28 up to 46 out of a 100) and usually let it sit over night before thinking of backing up. And I have heard from other printers also that inks are not drying as they used to. So you're not alone
__________________ [I]"No well engineered plan survives contact with reality"[/I] |
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#4
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| Hi Guys Inks do change and no matter if it is Toyo , Hosstman , K+E or any other ink. If it will not dry well , you should check the dampening solution - it has alot to do with drying the ink. The water conditions needed today are different then years ago, You should set your water right and your ink will dry better - this can make a very big change. contact me for details info@printsup.co.uk |
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