TSB
screen printing => General Screen Printing => Topic started by: Maxie on April 27, 2016, 09:00:18 AM
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How would you print this? We were seeing the holes in the performance wear. First photograph.
The second photograph is of a shirt printed with a lot of pressure, doesn't look bad.
Printing sequence:
White base
Flash
Light blue
Red
Blue
Flash
Yellow
Top white
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What's the mesh count?
Murphy
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What's the squeegee duro?
Murphy
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If you are talking the hole in the shirt (ie. the mesh) Thats a good thing since if plug the hole breath-ability goes out window. That my concept.
Shane
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Help me understand what your asking, you don't want to see the holes in the ink? then your going to have to p/f/p and get a heavy coverage which knocks out the the performance part :o even if you use vinyl your still going to see the holes impressions.
darryl
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Considering the fabric you are printing on - That looks fantastic!
If you want to get rid of the hole "depressions" in your base white.... you need to lay down enough ink to fill them in.....
It WILL be annoying to do so.....
Typically lower mesh counts/S mesh with a good to high eom will work best to achieve this.
As was asked earlier:
What are your mesh counts/print strokes/squeegee durometer/flashes/ etc...
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I am talking about the holes in the ink.
We printed a white base using a 110.
Colors on 230
Top white 156.
Squeegees:
White: 60/90/60
Colors 70/90/70
Printed on MHM so aluminum boards, no rubber.
Our customers don't like to see the holes, when we printed at really high pressure, 50psi we got rid of the holes.
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Two flashes, one after base white and one before top white.
When the boards were cold we have some spreading on the blue which we printed first, the top white covered this.
Once the boards got hot the spreading stopped.
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If it were on the manual I'd say hit the base twice and ditch the top white--once you fill in the holes that kind of stuff usually prints very well in my experience. Unfortunately, that's of no help to you whatsoever in your current situation.
Possible decreasing squeegee angle, slowing down, or modifying the ink slightly to lay more ink down could help with filling in those holes a little better on the base white.
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Me thinks your wasting your time because once these shirts are washed a few time those holes where the ink as nothing to adhere to will fall out in time, it blows me away when a customer ask for crap to be done that is kind of normal in printing those type of garments, but I could be wrong :-X
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The ink will hold fine in those...the holes don't go the way through. It's a weave on the top of the fabric.
That print looks great, there is no other way to do them unless you want to put 2 bases down under all of your colors.
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As suggested, you could double up on your base giving you a bit smoother base to print on, resulting in a heavier/stiffer print.
Or drop your mesh count on the top colors, and switch to 60/90/60 for squeegee duro.
The squeegee switch with a bit slower print speed would probably do the trick as a, on press adjustment.
Murphy
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Man... These look great. The Blue and yellow dont appear to be a issue from the photo you posted. Could you thin down the red and try and get that into the holes of that underbase a little bit more. I think a slower speed, more pressure like the second picture and reduce the colors a little more...
Just my $.02