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screen printing => Waterbase and Discharge => Topic started by: tonypep on October 22, 2015, 10:22:05 AM
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At first project deemed undoable due to screen count. So R&Dd it this am with a few different highlight, shadow, midtone screens. Final print is 2 screens DC/UB w/solid yellow transparent WB overlaly. Shadows/midtones are shirt show throughs in different values. Final print will be 7 colors w/ only one halftone screen. Its actually going to be an easy job.
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Tony,
Well done print!
My question:
We have heard stories about how printing standard WB over a discharge base is less than desirable. I myself have never attempted it because of what I had heard.
Obviously, from the above pic, it is doable; but how does it feel and wash long term?
Are there other little production things to look out for during the run that are not obvious? You said transparent yellow, is that 6% or less in pigment loading? (knowing that pigment concentrations vary from manufacturers)
Thanks!
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Well.....there are "stories" and there are facts. In this case the UB is doing all the work and the unactivated solid yellow creates the sepia hues. Wash and crock fine. Absolutely zero hand. Unfortunately "stories" often come from less than qualified individuals with the best of intentions. ;)
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Pretty cool Tony, something new. You should post the final print. Would be cool to see.
As long as you don't need a BRIGHT top color like a red DCUB with WB on top should be ok. I tried it a couple years ago and couldn't get past a pastel result printing solid blocks of colors. Maybe with more playing it could work, possibly HIGH mesh count UB and then high pigment load wb on top may work. I think in the end, the shirt can only absorb a certain amount of moisture before it rejects further printing, so cutting the volume of ink going into the garment may yield proper results for BRIGHT DCUB with WB top color spot art.
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Very true Tony!
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Is that the Ravenel Bridge?
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Is that the Ravenel Bridge?
Nice Print!
It Is Jacksonville, Fl
Dames Point Bridge Is The Large Bridge.
The Tree Is The "Treaty Oak"
Buildings are Main St / Landing
Street View is First Street At the Beach
The Marsh Pic could be Anywhere along the "first coast"
winston
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Yes it is
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Guess I was wrong on that!
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Final print. Camera flash paling it out and a little blurry. Six solid non activated WB triangles over percentage tone UB Seven screens total
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Looks great! Was this all WOW or did you quick flash the UB?
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Quick flash. Doing the tweaks now. Single hit all screens
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The color matching ability you have with waterbased inks never ceases to amaze me. Very nice.
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Thank you. Mixing/matching transparent inks of any type is more difficult. Its difficult to judge hue saturation. The custom built swatch machine accurately represents on press results and helps immensely
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The color matching ability you have with waterbased inks never ceases to amaze me. Very nice.
I agree, with as much waterbase and hsa as we have been tackling as of late I would love to spend a couple days with Tony. Execution on this one doesn't get any better then this. Doing more with less seems like one of Tony's biggest attributes. Well done sir
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Thanks again. think about a spring loaded kickstand/jiffy clamp/butcher block set up for the swatch setup. Ours is located in the ink room with recipie notebook clipboard and test circle screens always at the ready. Industrial heat gun for cure. Never have to leave the ink dept for testing/checking formulas.
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Thanks again. think about a spring loaded kickstand/jiffy clamp/butcher block set up for the swatch setup. Ours is located in the ink room with recipie notebook clipboard and test circle screens always at the ready. Industrial heat gun for cure. Never have to leave the ink dept for testing/checking formulas.
Ah, the lightbulb just went off. This is brilliant; the only part I am having a hard time working out is "test circle screens". Can you elaborate on that part of your setup?
Chris
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he posted them here several times, you can find them in his posts
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We just have some circle film positives that get shot on one of those square bar newmans (so we can use a specific mesh like a 150s, etc.) clamped into one of those little chinese presses that one of our staffers had lying around. Keep some small squeegees, etc. around it and put it right at the ink mixing station with a heat gun. It's nice to preflight overprints, colors, etc. on the specific fabrics.