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Pretreat Process for Poly Rich (65/35) shirts

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Old 8 Hours Ago Dec 2, 2019 6:26:54 AM -   #1 (permalink)
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Default Pretreat Process for Poly Rich (65/35) shirts

Hi there, trying to print on the Poly Rich Tultex shirts (65% poly, 35% cotton). During the training the print looked to have a lot of pinhole type gaps in the print and the trainer suggested we needed to get the pretreat process a bit more dialed in. Anyone have experience with this or, better, know the magical process to pretreating these shirts?

Thanks in advance!
 
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Unread 1 Hour Ago Dec 2, 2019 1:51:29 PM -   #2 (permalink)
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Default Re: Pretreat Process for Poly Rich (65/35) shirts

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Originally Posted by nemmert79
Hi there, trying to print on the Poly Rich Tultex shirts (65% poly, 35% cotton). During the training the print looked to have a lot of pinhole type gaps in the print and the trainer suggested we needed to get the pretreat process a bit more dialed in. Anyone have experience with this or, better, know the magical process to pretreating these shirts?

Thanks in advance!
This is a lousy shirt for DTG but it can be done! You will need to pretreat a little bit heavier then you would if it was a cotton shirt. Also not all pretreats will be able to handle this blend, meaning you will have to spray so much it will cause a host of separate issues like poor wash ability and cracking. The secret for this kind of shirt is to decide how many grams of pretreat you need to spray, and that will very by pretreat, you then cut the amount in half spray it and dry it then do the other half and print on it. Your trainer is right but he had probably no idea what you actually needed to do. I'll go out on a limb and say the trainer is the salesperson or a sales person from the company you purchased the printer from and they often just spew what the manufacturer told them which is usually nothing to do with actual production.
 
Unread 19 Minutes Ago Dec 2, 2019 2:36:37 PM -   #3 (permalink)
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Default Re: Pretreat Process for Poly Rich (65/35) shirts

Quote:
Originally Posted by Ghoster32111
This is a lousy shirt for DTG but it can be done! You will need to pretreat a little bit heavier then you would if it was a cotton shirt. Also not all pretreats will be able to handle this blend, meaning you will have to spray so much it will cause a host of separate issues like poor wash ability and cracking. The secret for this kind of shirt is to decide how many grams of pretreat you need to spray, and that will very by pretreat, you then cut the amount in half spray it and dry it then do the other half and print on it. Your trainer is right but he had probably no idea what you actually needed to do. I'll go out on a limb and say the trainer is the salesperson or a sales person from the company you purchased the printer from and they often just spew what the manufacturer told them which is usually nothing to do with actual production.
Eh, I can't speak to the quality of the trainer, the company is Omniprint, and the training is rather long... but given how much there was to learn, I definitely feel a bit ill prepared still. As to the shirt, the whole point of the TX Plus was to be able to print on Poly. Is there something specifically about the Tultex that makes it hard to print (the cotton one I printed looks fantastic) or are you commenting more on DTG's inability to print well on poly in general?

I know I hit this shirt with double the pretreat of cotton (per the trainer) but didn't dry half way through, may have to try that!
 
 
Unread 1 Minute Ago Dec 2, 2019 2:55:54 PM -   #4 (permalink)
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Default Re: Pretreat Process for Poly Rich (65/35) shirts

Quote:
Originally Posted by nemmert79
Eh, I can't speak to the quality of the trainer, the company is Omniprint, and the training is rather long... but given how much there was to learn, I definitely feel a bit ill prepared still. As to the shirt, the whole point of the TX Plus was to be able to print on Poly. Is there something specifically about the Tultex that makes it hard to print (the cotton one I printed looks fantastic) or are you commenting more on DTG's inability to print well on poly in general?

I know I hit this shirt with double the pretreat of cotton (per the trainer) but didn't dry half way through, may have to try that!
No there is nothing specific to the shirt that makes it hard to print other than the polyester content. It can be done but it is all about the pretreatment. Omniprints pretreat is ok, but it usually cannot handle something like that easily I have gotten amazing results using Firebird pretreat onto blends like you are using. Firebird even offers a 100% polyester option which I have used before with amazing results. The omniprint pretreat is often found lacking in vibrancy, wash ability and coverage compared to something like Firebird pretreat. Not all pretreats are created equal. Try the 2 step spray and curing you may get better results but given your setup you still may have a difficult time or get results you maybe looking for.
 






This is a discussion about Pretreat Process for Poly Rich (65/35) shirts that was posted in the Direct to Garment (DTG) Inkjet Printing section of the forums.

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