Heat seal (square left over on red shirts)

[Dottonedan]

I am doing Gioldan G2000 red tees with vinyl names. I am getting a (square left over on red shirts).  Temp is 360 degrees and set for 75 seconds.


Thoughts?  Will it just wash out or eventually turn back?  It's cooled and still discolored darker.


D

[stitches4815]

Everytime I have pressed red shirts the color always returns back to the original color.  360 for 75 sec?  What product are you using?  I use vinyl that is at 320 for 20-30sec.

[Dottonedan]

I see now, that they are starting to turn back...but scared me a little. I know i read tis issue before, but didn't remember the results.


Thanks for being here to help out      Us newbs need ya.


Yes,  I just remembered tho, that I had that setting for vinyl names  regular low bleed white ink...(but on another product that was heavier and has some poly content.  So I will lower it a bit and cut the time down.


Thanks!!

[Northland]

wow....360 degrees ?
I use Thermoflex at 335 degrees for 20 seconds.

[JBLUE]

75 seconds? Are you sure it is not just a big scorch that your seeing?

[Dottonedan]

I have to come clean and say I don't know what the heck I was doing. It's been about a decade since I've done heat setting except for DTG but  what had happened see,  is that I had it set on what I was doing (last time) I used it...and it worked out so well (on that).


So, with me being on a time crunch with multiple deadlines, I jumped in, turned the machine on and thought in me lil head "The setting it was on last time was good and I didn't change it" ....so off I went.   But that last time was fixing a print mistake with regular Low Bleed white ink. So yea, I needed that high and that long to make sure I cured the white ink.  It didn't even dawn on me that vinyl transfers were THAT much  lower.


Back to this red tee, Well, after getting my first reply, I knew I was way off... Frog called me up and said, "Didn't you read the instructions. LOL.   Well know, I don't need no stink'n instruction.


everything came out great, but was a little afraid that this dark spot may stay. NOthing melted, nothing seeped into another color. Vinyl was intact and all looked great. Frog said I was lucky. Wasn't sure, but I thought that it goes away and it was confirmed of course.


I'm just a  new in some areas.

[Sbrem]

Red's blush Dan, even coming out of dryers. Once they cool off, they come back to normal. Of course, the 75 seconds at 360° is not helping. Our materials are 320° for 15- 20 seconds. No worries, part of the learning curve...

Steve

[3Deep]

Dan's making waffles ours is set around 330 to 350 for about 10 to a 15 seconds sometimes less using thermo film from stahls.

Darryl

[mk162]

you would be surprised how much heat shirts can handle.  We heatpress our digital prints at 370 for 40 seconds.  no scorch marks.