Problems with 50/50 Safety Green "scorching"?

[shellyky]

Hey guys i'm having some slight issues with safety green shirts scorching in my dryer...they come out a tad scorched on the side seams and on center of the sleeve and pretty much any slight 'wrinkle' when laid down on belt will discolor...1st time we did them it was bad because the girl catching didnt notice.  2nd time we did them i had to lay them 100% flat and sleeves opened up with the belt going faster and it discolored a tad but nothing you could see until you looked for it. 

This morning we're printing 200 safety shortsleeve/longsleeve and 50 safety hoodies (of which i've never done)....single color green ink on both sides.

How should I go about this to prevent issues with this big of a run?  Our donut probe says we're hitting the right temps for standard 100% shirts, so any help is appreciated.  I dont print anything 50/50 unless it's safety or black so i cant see if it happens on those.

[dave58]

Is it actual scorching or slight discoloration?
i seldom scorch shirts...but some discolor when coming out of the dryer....but as they fully cool come back to normal.
like red shirts for example

[Frog]

I just ran some G2400 long sleeve safety greens and had no trouble. I also ran some white cotton and all settings on the dryer remained the same but(and its a big "but") the 50/50 does tend to get hotter, and hold the heat more, so it often requires a lower heat or faster belt. (For me, belt speed is my most common adjustment.)

Your obvious fix is to take a reading with one of these, and you will most likely see the difference.

Heck, some folks don't even realize at first that certain colors of a usually 100% cotton style can be 50/50 like these safety colors.

[shellyky]

its more of a scorching i suppose because they never came back to life -- i had to redo the first set and bought some of that scorch remover, which helped but i had to run it thru so many times it wasnt as "safety"  as it was pale yellow.

OK i'll just raise the belt speed and hope it gets there...Theres minimal ink coverage on these and its green ink so i dont think it will be too bad as far as needing to be in there forever. 

[tonypep]

That "scorch remover" is Hydrogen Peroxide repackaged BTW

[Nick Bane]

Ive found the safety green shirts to be pretty picky too and will, for me anyway, seem to scorch sooner than others.  I just bump the belt speed a bit and all is good.

and no need to buy prepackaged scorch remover, like tony said, just regular old hydrogen peroxide.

[alan802]

It's easy for you to change the temp of the dryer right?  I've spent hours using our donut probe and I've found that small drops in temp, 5% or so usually drop the temp the shirts are hitting about 10-15 degrees.  On 50/50's, we drop our temp setting from 390, belt speed 22, to 370 and 23 belt speed and that drops the readings on the probe from 330 to 315.  You can speed up the belt but if your shirts are hitting 320 in the middle of the chamber then you'll likely still see scorching.  If they aren't scorching till the last 2' then speeding the belt will be the only fix you need.  I doubt that ink needs as much heat and time as you're likely getting them so a 5% drop in temp will still cure the shirts and probably get rid of the scorching, but changing belt speed can fix the issue as well depending on what's going on inside the chamber.

[woodrow]

We've had trouble with these too and we're finding that the slight discoloration can appear hours later. We have a couple different dryers in our shop and ones with the radiant panels in the last 2 feet cause the most problems and speeding them up is the only solution for us. Does anyone use all electric dryers? We've had contractors print these for us at times and not had issues and they use all electric...

[tonypep]

BTW it's the flourescent dyes that are causing this.

[Frog]

Electric here with an old ten foot American Phoenix, but, it really is just a matter of fiddling a bit with speed or heat.
Once you get it, you'll see it's no biggie.
A little more of a challenge with my old four foot Scamp, back in the day, but this is not a problem that can't be solved.

[inkstain]

This happened to me before. 
My solution may not be the best, but I dropped the dryer temp down.  Run them through twice.
I'd rather it take a little longer then have to buy a ton more blanks.