ethanj098
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Posts posted by ethanj098
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Very weird issue occuring for sure.
Installed a new head and saw that the white ink channels were missing. So we tried installing new ribbons thinking that's what was causing the issue and that didn't work either. So we then looked at the carriage board thinking that that may have had an issue with it and that worked!!!!... until we realize half of our channels were also missing. So we are at a loss at this point and don't know what else to do.
Any suggestions?
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1 hour ago, johnson4 said:
Make sure you have enough black ink going down. I have to print a pretty thick layer of black if there isn’t an underbase to get the powder to stick correctly.
We have a %50 white underbase under our black designs. It does it on everything black we print, very odd.
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39 minutes ago, Watteva said:
will do, its such a new process a lot of people are learning it or find different things that work for them. Yeah, we've done multiple wash tests with different inks/film/powder and were amazed how different they all were. We think we've found our perfect set up but it took months and lots of money.
What setup are you using at the moment if I may ask? We are having our white prints come out fine, but anything with black in it, is washing out after the first wash. We are stumped.
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1 minute ago, Watteva said:
we have a 24" chinese printer as well but not the oric one. We were told no maintenance either but we've had it 4 months and only just got it properly sorted and now they've told us we need to clean the wiper and cap station so lost confidence in what they're saying.
We think some of the nozzles are blocked and doing a wet cap with cleaning solution over night to see if that helps. Otherwise head change tomorrow.
Let me know how it goes for sure. We're new at this, so any tips would be helpful. Have you guys ever washed any shirts to see how your prints are holding up?
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1 minute ago, Watteva said:
We think that is our next thing to do. Do you wet cap it every night?
So we actually do not wet cap. We were told by the people installing the printer that because of our climate and the way our room is setup, we wouldn't have to wet cap. We started to print in color and noticed that our color head was producing stripes in the print, so we started wet capping last night. What kind of printer yall using?
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2 hours ago, Watteva said:
We have the same issue.
did you manage to sort the issue? If so, what did you do?
thanks
We ended up having to replace the print head. Nothing else was working so we had to get another head.
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15 hours ago, johnson4 said:
Just my personal “experience” with the small format heads anyway, I’m not sure about those- but anytime I ever manually cleaned them like that, I always had problems. If I’m not mistaken, these small format heads are good for up to 5 psi, after that is damage territory, which could also cause issues.
some people have great success, but I know every time- no matter how gentle- I usually ended up replacing that head within a few weeks to a few months after manually purging them. Over the years, I just learned to be patient and soak them and wet cap everyday, haven’t replaced a head since. I wouldn’t be against it, but I would need some sort of head cleaning machine with a psi regulator before doing that again. Not saying that’s your issue at all, just my $0.02 on manually cleaning the head like that.
Understandable, going to run it today and see what happens, hopefully I didn't damage anything, but I printed some designs after and it looked great.
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15 minutes ago, johnson4 said:
Yea, it’s confusing to me as well, I don’t see the correlation between the two. However, replacing the dampers would be where I started. If it fixes both issues, then now we know.
just curious, can you tell if the ink mixer is spinning?
Yeah, it is indeed spinning. I did flush the head with some clog buster and did a push and pull method to see if maybe there was some dried ink on the nozzles, and I ran some stuff and it seemed fine, I'll run some more stuff tomorrow and let you know if it continues, and if it does, I'll get more dampers ordered. Ill be in touch, thanks.
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15 minutes ago, johnson4 said:
I mean, to me that’s what it sounds like if your white is doing that, if it were me I would replace the white dampers and see what that does.
as for the adhesive, it should cure with or without the ink. Mine does anyway, it melts at a certain temperature irregardless of the ink.
I had thought so too, but it seems to be directly correlated to how much ink is on the film because, it doesn't feel grainy right after I purge the lines, but does when it starts to thin out, so it's alittle confusing.
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3 minutes ago, johnson4 said:
Oh okay. So it purges the ink, and as your printing, it starts to do it again, right?
Do you know the age of the printer since it was loaded with ink?, if it has sat at any point for 48+ hours not printing and how often? How often do you clean the wiper/cap assembly?
im asking because it sounds like the dampers, but could be other things too.We just got the printer roughly about 2 1/2 months ago. We clean the wiper and clean the excess ink around the capping stations daily. We only operate M-F so the printer stays on without printing for two days with the circulation pump runs during this time. And yeah, after I purge the line or load ink, it prints fine, the glue sets as it should. But as I start printing more and more, the white seems to start thinning out and I start getting that grainy feeling with the glue like there isnt enough ink for the adhesive to cure fully.
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Just now, johnson4 said:
If your white underbase isn’t good/perfect then your powder doesn’t stick, so that’s the cause of that issue.
What do you mean by “ load the ink”?
On our Printer program that came with the printer has a button that says "Load Ink" which pulls and replaces the ink in the lines.
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Printer : Oric 24” Professional DTF Printing System
Ink : DTF Superstore White
Film : (A3) 11.75" x 325 feet Roll of DTF Film - Hot Peel
Humidity : 55%
Temp of Room : 73F
Temp of Shaker : 127F
Having issues with my white ink dropping out in the middle of my print. White prints perfect right after you load ink, but starts to drop out the more I print with it, causing it to start striping in the middle of a design. When this happens, the powder adhesive doesn't seem to fully cure and seems to be really grainy and almost looks like its cracked when it comes out of the heater, and the designs themselves are very delicate and seem to crumble away. My first instinct was the temp wasn't hot enough for the glue to fully cure, but I tested it right after I did a load ink and it cures perfectly fine. Whenever I notice this, I do a test print and notice that at least 4 or so channels aren't pushing out any ink. I try to do a cleaning on the PrintEXP software and it makes those channels come back alittle bit, but doesn't seem to do much unless I load ink. I'm at a lose, if anyone can help, it would be awesome, thank you!
White DTF Ink dropping out in the middle of a print
in General Direct to Film Discussion
Posted
Yeah, I believe when this happened, we ended up replacing the head as we didn't really know what we were doing at the time. Now, looking back, we did try dampers first, but nothing seemed to work, so we threw a new head in and it ended up working for quite a while.
DTF is very VERY touchy and you need to be careful and make sure you are taking the preventive maintenance needed daily, to ensure that white ink doesn't settle.
If it settles and clogs your printhead, you are in for a headache for sure.