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screen printing => Waterbase and Discharge => Topic started by: Rockers on June 02, 2014, 09:10:11 PM
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Can`t get it right. Looks more like the color of the cotton without the black. 5% activator might be too much? It`s just does not look grey at all.
Any advice?
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We do a lot of DC 420c, 6% activator. Probably one of the easiest inks for us. We don't mix greys by book typically but will simply drop black and Blue, etc. into white.
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We ran a job with 422 today, not the same thing but close. 5% activator but whenever it calls for "mixing white" we use D-White. Can you post a pic of what you are getting?
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We ran a job with 422 today, not the same thing but close. 5% activator but whenever it calls for "mixing white" we use D-White. Can you post a pic of what you are getting?
Maybe the mixing white is the problem then. I mixed greys before using the normal discharge white and never had real issues. But right now I`m almost out of discharge white and had to use the mixing white. Only by dropping down to 1.5-2% activator I got a result that IS OKish but not great. looks kind of patchy. Will try to take a photo later. Still have to do the front now. Same grey with bright green top color.
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We ran a job with 422 today, not the same thing but close. 5% activator but whenever it calls for "mixing white" we use D-White. Can you post a pic of what you are getting?
Here is a photo of the front print. This was as well a pain in the backside. The green is discharged too. CCI base with Matsui pigments and 4% activator. The green prints right on top of the grey in certain areas to cheive another shade but as we tried that wet on wet the green did not show at all on those grey parts. Only as we started flashing in between the green came out OK. I`m confused. Of course the grey looks rather greyish brown instead of the the requested pms 420. Really considering reprinting this job. It`s just 50 tees.
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So we will reprint this tomorrow using discharge white and black in order to match the grey instead of the mixing white and clear base. Tried it today wit the little bit of white we still had left. Much better result. So my worry now is since we have to print a bright green right on top of the grey is that we might get too much pick up on the back of the green screen. Any chance I can add like 30% clear base to the grey without compromising the color?
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Sure, you can base back the white/grey mix. If the art allows for it and you run fast, the pickup from the grey will be manageable, maybe need an occasional wipe down. We've done this exact color, mixed as I described from white DC as a first down many times for jobs where the subsequent colors could not be stepped on. Just don't let that grey dry on the back of the green screen.
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Sure, you can base back the white/grey mix. If the art allows for it and you run fast, the pickup from the grey will be manageable, maybe need an occasional wipe down. We've done this exact color, mixed as I described from white DC as a first down many times for jobs where the subsequent colors could not be stepped on. Just don't let that grey dry on the back of the green screen.
What happened though is that as we printed the green on the grey lettering the green i was almost invisible. Only flashing between the grey and the green made it look as shown on the photo. Kind of strange.
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Not that strange at all man, don't tell Tony P. ;D but we flash a lot when running WB and DC jobs. A lot of our runs are large areas of solid print and it seems to help. Like Zoo said you should be able to use base in the 420 mix, you are using the Matsui bases right? Their "bright discharge base" is damn near white as it is!