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-   -   problems with 3G Jet-Opaque transfer paper (https://www.t-shirtforums.com/inkjet-heat-transfer-paper/t163444.html)

yolo creative December 29th, 2011 12:35 AM

Re: problems with 3G Jet-Opaque transfer paper
 
We generally recommend 3G Jet-Opaque for use with 100% cotton and Jet-Opaque II for cotton blends. As your shirt is 60% cotton and 40% polyester, you may find that you getter better results with Jet-Opaque II.

Emvy December 29th, 2011 12:41 AM

Re: problems with 3G Jet-Opaque transfer paper
 
Thanks you very much! I'll definately try that..

BroJames December 29th, 2011 01:12 AM

Re: problems with 3G Jet-Opaque transfer paper
 
Quote:

Originally Posted by Emvy (Post 1032653)
After trying all the instructions varying the temp and time.. I still have this problem of the transfer paper adapting the color of the shirt. I use a 3g Jet Opaque and a Yalex colored shirt.. 60% cotton 40% polyester..

What sort of color adaptation problem? 3G is opaque and there shouild not be any color adaptation problem as I am imagining the problem to be. Meybe you can be more specific.

Whether it is better for use with cotton or polycotton shirts is another matter.




BroJames December 29th, 2011 01:13 AM

Re: problems with 3G Jet-Opaque transfer paper
 
Quote:

Originally Posted by yolo (Post 1032657)
We generally recommend 3G Jet-Opaque for use with 100% cotton and Jet-Opaque II for cotton blends. As your shirt is 60% cotton and 40% polyester, you may find that you getter better results with Jet-Opaque II.

Can you elaborate further? TIA




Lnfortun December 29th, 2011 04:14 AM

Re: problems with 3G Jet-Opaque transfer paper
 
It is actually dye migration. The dye on cotton blend will sublimate thru the opaque. Try pressing it twice and let it cool in between presses. Split the time in 2 halves. Press for first half. Let it cool down for few seconds then press with the second half. Lower the pressure also. Otherwise use 100% cotton.

BroJames December 29th, 2011 04:26 AM

Re: problems with 3G Jet-Opaque transfer paper
 
Does the dye migration occur after pressing or soon after?

I use 3G and jet opaque interchangeably but more on 3G. My opaque papers on stock is 3G. I used to press at 350F(176C) for 15 sec then repress for another 15 seconds. I recently change to 190C and 10-12 seconds + 5 seconds repress. If I pr4ess for 15 seconds some edges won't stick. I believe that is a sign of excessive heat(or is it?). Pressure is medium to hard. Shirt is usually 60% cotton. I did not notice dye migration but will try to observe more closely next time.




Emvy December 29th, 2011 06:04 AM

Re: problems with 3G Jet-Opaque transfer paper
 
For more elaboration, the paper is tinted with the color of the shirt.. the shirt is pink and the image on the paper turned pink as well..

Lnfortun December 30th, 2011 11:59 AM

Re: problems with 3G Jet-Opaque transfer paper
 
Dye migration occurs when the dye molecules are heated at high temp and prolonged time to a point that the dye turn to gas state. While the molecules are in gas state they will bond to the molecules of synthetic materials. When cooled down the dye molecules return to solid state and permanently bonded to the synthetic material(sublimation). Although opaque material is not as receptive as 100% polyester synthetic, such as 100% or high percentage polyester shirt or 100% polyester coated material such as mug, it will have some form of sublimation effect(dye migration). So when splitting the time and lowering the temp when pressing opaque the dye molecules will not reach to gas state. Therefore minimizes the possibility of dye migration. Some vinyl transfers have some form of dye blocker to prevent dye migration.

I treat opaque material like vinyl transfer. I press between 320F to 330F for 6 seconds for first pressing. Let it cool down. Press 6 seconds for second presssing then peel cold.

Over heating or pressing too long can overcure the adhessive and lose it's bonding property. That is what happens when the edges are lifting.

BroJames December 30th, 2011 05:58 PM

Re: problems with 3G Jet-Opaque transfer paper
 
Although mine is not lifting up at 12 seconds seems like I can afford to lower the press time.




tfehrenbacher January 4th, 2012 07:43 AM

Re: problems with 3G Jet-Opaque transfer paper
 
Did you ever get your image to stay put?
Normally the 3G is only used on 100% cotton fabrics. If you're using that 60/40 blend or any other blend then you may want to think about using a different opaque paper - try the Blue Grid or the Jet Opaque II paper. Those won't be quite as soft but they will give you a great vibrant color.
Also, temp should be around 170-175C and press for around 30 seconds. Also use a medium pressure for the 3G as well as the Blue Grid and the JetOpaque II If the paper won't stick to the shirt at all after pressing, make sure you've peeled the paper backing off before trying to press it?

BroJames January 4th, 2012 07:41 PM

Re: problems with 3G Jet-Opaque transfer paper
 
Quote:

Originally Posted by BroJames (Post 1032708)
Does the dye migration occur after pressing or soon after?

I use 3G and jet opaque interchangeably but more on 3G. My opaque papers on stock is 3G. I used to press at 350F(176C) for 15 sec then repress for another 15 seconds. I recently change to 190C and 10-12 seconds + 5 seconds repress. If I pr4ess for 15 seconds some edges won't stick. I believe that is a sign of excessive heat(or is it?). Pressure is medium to hard. Shirt is usually 60% cotton. I did not notice dye migration but will try to observe more closely next time.

That should be 180C.

Quote:

Originally Posted by tfehrenbacher (Post 1035484)
Did you ever get your image to stay put?
Normally the 3G is only used on 100% cotton fabrics. If you're using that 60/40 blend or any other blend then you may want to think about using a different opaque paper - try the Blue Grid or the Jet Opaque II paper. Those won't be quite as soft but they will give you a great vibrant color.
Also, temp should be around 170-175C and press for around 30 seconds. Also use a medium pressure for the 3G as well as the Blue Grid and the JetOpaque II If the paper won't stick to the shirt at all after pressing, make sure you've peeled the paper backing off before trying to press it?

I started with 176C 30 seconds but the edges sometimes lift. I've tried various temp-time combination, including some used by commercial printers. The lowest temp I recall is 160C 30 seconds and the highest 220C 5 seconds. Most seems OK but without the benefit of extensive wash test.

For a while, I used 176C 15seconds press plus 15 seconds repress. That seems fine too. But the shirts I've wash test most was pressed at 180C 10-12 seconds + 5 seconds repress(sometimes none). I maintain 180C for paper transfers and vinyls (Chinese polyurethane) except some korean vinyls that require 110C 10 seconds.

Frankly I printed mostly on black cotton blends but have also printed on grays, yellow, red and a few other colors. I've also printed on 100% cotton. Unfortunately, I did not pay special attention to possible dye migration.

How does Blue Grid or Jet Opaque II compare with each other? Have you tried paropy or joto?

BTW, my current problem is opaque papers cracking after 20 or so washes.




iDesignTeePrints January 6th, 2012 01:20 AM

Re: problems with 3G Jet-Opaque transfer paper
 
we have the same problem im using crown brand shirt 3g jet-opaque heat transfer paper, heavy duty heat press machine in 180C 8sec for dark shirt and yet still have this problem of the transfer paper adapting the color of the shirt. what is the right temperature and time for dark transfer paper on a black shirt..

iDesignTeePrints January 6th, 2012 01:27 AM

Re: problems with 3G Jet-Opaque transfer paper
 
we have the same problem im using crown brand shirt 3g jet-opaque heat transfer paper, heavy duty heat press machine in 180C 8sec for dark shirt and yet still have this problem of the transfer paper adapting the color of the shirt. what is the right temperature and time for dark transfer paper on a black shirt..

https://www.facebook.com/photo.php?f...type=3&theater


the letter "Z" it adapts the color of the shirt
i use 180C 8sec for dark shirt

ericahcah June 15th, 2012 12:13 AM

Re: problems with 3G Jet-Opaque transfer paper
 
3G JET OPAQUE
Heat Transfer Paper (Dark Based)
- Neenah Brand
- Size: A4
- 5sec to Print on Fabric
- Durable / Washable...
Model Number: P-TP-3G
brand Name: Neenah
FOUND AT ALIBABA.COM SITE

I TRIED THIS METHOD @ 160 CELSIUS AND IT WORKS WITHOUT LOSING OPACY

30 SEC NEENAH RECOMMEND ON YOUTUBE DIDN'T WORK FOR ME..LOSING OPACY

Lnfortun June 15th, 2012 03:25 AM

Re: problems with 3G Jet-Opaque transfer paper
 
Quote:

Originally Posted by ericahcah (Post 1122630)
3G JET OPAQUE
Heat Transfer Paper (Dark Based)
- Neenah Brand
- Size: A4
- 5sec to Print on Fabric
- Durable / Washable...
Model Number: P-TP-3G
brand Name: Neenah
FOUND AT ALIBABA.COM SITE

I TRIED THIS METHOD @ 160 CELSIUS AND IT WORKS WITHOUT LOSING OPACY

30 SEC NEENAH RECOMMEND ON YOUTUBE DIDN'T THE WORK FOR ME..LOSING OPACY

Yup I don't follow for the most part the instruction with opaque. I find much lower press time solves the opacity issue. 30 seconds is way too long. I press between 6 to 12 seconds with opaque depending on brand name.


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