Ink bleeding
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That is exactly what happened.Now figure out if its the t-shirt or the ink.Or both.This is called dye migration.My guess is that its the shirt.Wash it with something white that you can trash and see if it comes off in the wash.I don't know what kind of ink your using so it's hard to give you advice on that.Most inks nowadays have good dye blockers in them.If you get them too hot they will still migrate.If its a fifty-fifty you have to be careful because the polyester does not hold the dye like a 100%cotton t does.To much heat and the dye will leach out of the poly.
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if you are printing on a poly blend, then be sure to use "low bleed" white ink which will help to block the dye migration. keep your curing temperature below 340 degrees.
The shirt is a 50/50 and the ink is ryonet white. It was cured at around 320 measured with heat gun. Now I know just like most of us that you should not mix darks and white's when washing clothe's because you can end up with pink underware. but does this happen alot, because I see alot of shirts dark whith white should the ink repel it. I don't want a problem with a customer when the shirt looked fine, what can I do to help stop this.
Like I said figure out if it's the t-shirt or the ink.I am not familiar with ryonet white but your the second post i've heard from that has a problem with their white.A good quality white is going to cost more.Bottom line.If the shirt is a off brand it still might be the shirt.
Do the wash test or if you have some spray-out fluid pour some on the shirt with a rag behind it and see if it bleeds.If so it's the shirt.If not print a 100% cotton red tee under the same conditions and see if that works for you.It doesn't sound like your over-curing.So that kind of eliminates the heat making the dye walk through the ink.
Do the wash test or if you have some spray-out fluid pour some on the shirt with a rag behind it and see if it bleeds.If so it's the shirt.If not print a 100% cotton red tee under the same conditions and see if that works for you.It doesn't sound like your over-curing.So that kind of eliminates the heat making the dye walk through the ink.
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The Ryonet white is a good white. Be sure to rule out dye migration first.
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what is dye migration then. A colored shirt when washed will always loose some of it's color so why does the ryonet white let the dye from the shirt bleed in to it. If it is over cured will this happen or is it the ink not stopping it from bleeding into it.
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All whites will absorb the dye color if you are having a dye migration problem. You need to use a low bleed poly white to combat that.
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Red pigments in Polyester are notorious for migrating into your ink when you cure.
Polyester can't be heated up as high as cotton shirts. So some of the pigments in a dark polyester shirt are not actually fully cured. When you cure your shirt and it's 50/50 some of those pigments come alive.
The will get a pink tint in the white with Navy Blue shirts too, because they have the same red pigments in them.
Polyester can't be heated up as high as cotton shirts. So some of the pigments in a dark polyester shirt are not actually fully cured. When you cure your shirt and it's 50/50 some of those pigments come alive.
The will get a pink tint in the white with Navy Blue shirts too, because they have the same red pigments in them.
I ran into this problem today, sort of. I am printing white on a black 50/50 blend. I am using Ryonet Poly white, and I am curing the shirts at 332 for 50 seconds. When I pull it out of the dryer, the ink is either bubbled (too hot) or it will look awesome, but you can scratch it off with a fingernail. I'm completely lost on what to do.
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Your reds, greens, will have the subjection of migration. Get a good white that is made to block the poly fibers. I use the QCM Perm 170 for my 50/50 and have never had a problem until the other day when I bought a new dryer. Then come to find out that the shirt was way overheated that released the dye from the shirt.
i disagree, you need at least 90 seconds at 320 to cure plastisol, if you only heat for 30 seconds, your customer will be back with cracked prints after the first washing
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