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+   T-Shirt Forums > T-Shirt Industry Information > Heat Press and Heat Transfers > T-Shirt Crossover - diary of a heat press newbie
This section of the forum is where Rodney, a die hard screen printing fan, journeys into the world of heat press and heat transfers. Coming from the perspective of a complete heat press newbie making t-shirts for the first time. Jump right in :)



[NEWBIE QUESTION] - Heat Press Marks on Polyester Garments

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Old April 11th, 2016 Apr 11, 2016 2:52:46 PM -   #1 (permalink)
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Default Heat Press Marks on Polyester Garments

Hello All,
We keep getting this heat press mark on the shirts, I took one home and washed it, and the mark did not come out?

We are pressing on 100% polyester shirts

The Process we did was:

Pressed at a 160 degrees Celsius for 15 seconds, we peel off the clear sticky cover, and press again for 5 to 10 seconds.

We put a neoprene slide underneath the press to protect the buttons on the shirt, and that is the mark that is showing up.

Do you have any advice for us?

Cheers

Graham

here are photobucket links to images:

http://i1222.photobucket.com/albums/...psl7mfde7d.jpg

http://i1222.photobucket.com/albums/...psl7mfde7d.jpg

http://i1222.photobucket.com/albums/...psgd6v7twl.jpg

Last edited by Hip Pocket Man; April 11th, 2016 at 03:15 PM..
 
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Old April 12th, 2016 Apr 12, 2016 4:22:32 AM -   #2 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

The temp is to high.
Try sprying it with water

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Old June 10th, 2016 Jun 10, 2016 12:15:27 AM -   #3 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

Quote:
Originally Posted by aztone
The temp is to high.
Try sprying it with water

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I've had the same experience with the heat mark from the platen showing on dark fabrics. What do you mean by "try spritzing it"? At what point do you spritz the garment? This occurred on both modal and 100% cotton at different temps. How can this be avoided in the future? Thanks
 
 
Old June 12th, 2016 Jun 12, 2016 6:55:26 PM -   #4 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

Quote:
Originally Posted by RCF01
I've had the same experience with the heat mark from the platen showing on dark fabrics. What do you mean by "try spritzing it"? At what point do you spritz the garment? This occurred on both modal and 100% cotton at different temps. How can this be avoided in the future? Thanks
What type of transfers are you pressing?

The key to minimize heat press shine is to use the lowest heat setting possible. You want to try to stay at or around 300 degrees Fahrenheit. This may mean changing transfer suppliers.
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Old June 12th, 2016 Jun 12, 2016 7:53:48 PM -   #5 (permalink)
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I've used Siser HTV (320 degrees, 15/20 secs) and Rhinestone transfers at 250 for 20-30 secs)

the platen marks are only visible on dark color shirts.

I tried using a pillowcase versus the Teflon sheet and still can see the marks.
 
Old June 12th, 2016 Jun 12, 2016 8:49:56 PM -   #6 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

Do you mean pillow, and not pillowcase?

We use a teflon pillow and use vinyl with a heat setting of 300-305 and do not experience the marks. If we use Siser and other at 320+ we do see the marks.
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Old June 13th, 2016 Jun 13, 2016 8:18:44 AM -   #7 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

Quote:
Originally Posted by splathead
Do you mean pillow, and not pillowcase?

We use a teflon pillow and use vinyl with a heat setting of 300-305 and do not experience the marks. If we use Siser and other at 320+ we do see the marks.
Hi Joe, no I meant a "Cotton pillowcase". Where can I find a Teflon pillow! Is the purpose f the pillow to raise up the Tshirt so the plates don't touch?
 
Old June 13th, 2016 Jun 13, 2016 1:39:24 PM -   #8 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

Quote:
Originally Posted by RCF01
Hi Joe, no I meant a "Cotton pillowcase". Where can I find a Teflon pillow! Is the purpose f the pillow to raise up the Tshirt so the plates don't touch?
The pillow helps eliminate the hard edge you'll see from the edges of the press. It also helps pressing over seams and buttons.

Wherever you get your heat press supplies will have them. We get ours from Imprintables.

not sure what you're accomplishing with a pillow case.
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Old June 13th, 2016 Jun 13, 2016 7:08:44 PM -   #9 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

Way to high heat. And press once the peel. Cover with Teflon or silicone sheet and press if needed. By looks of your print it is melted in.

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Old August 31st, 2016 Aug 31, 2016 2:44:45 AM -   #10 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

We've just started selling Kappa brand kit, and are encountering same issue.

using Superflex and Colour cut from Xpres, both at 150 degree c, with times of 10/15 seconds respectively.

Tech Support say to ease pressure and lower time, but don't guarantee things

we've got a package of more than 300 garments to press, and really can't produce with the press area showing.
 
Old August 31st, 2016 Aug 31, 2016 7:01:32 AM -   #11 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

Quote:
Originally Posted by Oldskoolflava
We've just started selling Kappa brand kit, and are encountering same issue.

using Superflex and Colour cut from Xpres, both at 150 degree c, with times of 10/15 seconds respectively.

Tech Support say to ease pressure and lower time, but don't guarantee things

we've got a package of more than 300 garments to press, and really can't produce with the press area showing.
That temperature setting should be fine. Are you using a teflon pillow? What color are your garments. The darker they are the more noticeable the mark.
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Old August 31st, 2016 Aug 31, 2016 8:30:16 AM -   #12 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

thanks, for responding - only joined today, to get some assistance

the garments are all black unfortunately

not using a teflon pillow currently, is that the suggestion?

use it on all garments/jobs in future ?

and does that mean we'd need to raise up the part of the press, that we pull down, to allow for the pillow depth?
 
Old August 31st, 2016 Aug 31, 2016 4:21:49 PM -   #13 (permalink)
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Default Re: Heat Press Marks on Polyester Garments

Quote:
Originally Posted by Oldskoolflava
not using a teflon pillow currently, is that the suggestion?

use it on all garments/jobs in future ?

and does that mean we'd need to raise up the part of the press, that we pull down, to allow for the pillow depth?
Yes it will help tremendously. I only use it on polyester or garments with buttons or seams.

Yes, you will need to adjust your pressure to compensate for the pillow being there.
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This is a discussion about Heat Press Marks on Polyester Garments that was posted in the T-Shirt Crossover - diary of a heat press newbie section of the forums.

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