Author Topic: discharge washing problem  (Read 1922 times)

Offline noortrd

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discharge washing problem
« on: April 01, 2014, 02:47:57 PM »
We use cci discharge white  on black fabric. After dryer the print cracks and turns to powder. What we did wrong?


Offline Colin

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Re: discharge washing problem
« Reply #1 on: April 01, 2014, 04:12:48 PM »
Are you sure it is properly cured?

Maybe it is dry, but not cured? 

Are you having any other "cure" issues with water base inks from that dryer during the same run period?

Have you printed with the same ink through a different dryer and had the same results?
Been in the industry since 1996.  5+ years with QCM Inks.  Been a part of shops of all sizes and abilities both as a printer and as an Artist/separator.  I am now the Ink and Chemical Product Manager at Ryonet.

Offline ebscreen

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Re: discharge washing problem
« Reply #2 on: April 01, 2014, 04:38:34 PM »
What's it look like on the inside?

Offline noortrd

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Re: discharge washing problem
« Reply #3 on: April 02, 2014, 03:10:25 PM »
water based dry fine. Its a gas dryer 7 ft chamber 200 temprature.

Offline JBLUE

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Re: discharge washing problem
« Reply #4 on: April 02, 2014, 03:54:56 PM »
Put away the 110 and run it on a 180..... ;D Sorry. Just in a smart ass kind of mood today.......... ;)
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Offline screenprintguy

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Re: discharge washing problem
« Reply #5 on: April 02, 2014, 04:01:17 PM »
7 foot chamber, but how long are you leaving it in there? should be in the heat no less than 2.5 minutes, and temp on ink should be around 320 minimum. JBlue is right, go with a higher mesh count, 156-180 and you won't leave a huge globby deposit. Maybe add some penatrant to dig deep in the fabric. Don't try to achieve a bright opaque white look on press, that's way too much, you will have your opacity at the end of the fabric's discharge. Give that a whirl. Just remember, the more ink you cake on there, the longer it has to be in the oven.
Evolutionary Screen Printing & Embroidery
3521 Waterfield Parkway Lakeland, Fl. 33803 www.evolutionaryscreenprinting.com

Offline noortrd

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Re: discharge washing problem
« Reply #6 on: April 04, 2014, 03:21:43 PM »
May be i buy new dryer.

Offline screenprintguy

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Re: discharge washing problem
« Reply #7 on: April 04, 2014, 03:38:27 PM »
just make sure this is printing you want to focus on mainly. that's a big investment if you end up stopping the discharge printing. really 12 feet of heat is around the minimum. Our dryer is 8.5 feet of gas heat and we slow it down to almost 1 to get the proper cure. Slows production down big time, but at least we know when the shirts go out, they won't be coming back.
Evolutionary Screen Printing & Embroidery
3521 Waterfield Parkway Lakeland, Fl. 33803 www.evolutionaryscreenprinting.com

Offline Doug S

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Re: discharge washing problem
« Reply #8 on: April 04, 2014, 06:27:14 PM »
just make sure this is printing you want to focus on mainly. that's a big investment if you end up stopping the discharge printing. really 12 feet of heat is around the minimum. Our dryer is 8.5 feet of gas heat and we slow it down to almost 1 to get the proper cure. Slows production down big time, but at least we know when the shirts go out, they won't be coming back.

When you slow it down to 1 what do you have your temp at?  Mine is 8ft of heat and I slow it to 3 or 4 and set the temp at 350 but I'm worried that temp may be to hot. 
It's not a job if you love doing it.

Offline screenprintguy

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Re: discharge washing problem
« Reply #9 on: April 04, 2014, 06:43:30 PM »
we set the heatwave to 340. If they are heather shirts, which we get a lot of folks wanting those discharged because of the cool outcome, then 320
Evolutionary Screen Printing & Embroidery
3521 Waterfield Parkway Lakeland, Fl. 33803 www.evolutionaryscreenprinting.com

Offline jvanick

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Re: discharge washing problem
« Reply #10 on: April 04, 2014, 06:50:06 PM »
CCI Discharge White on Antique Royal Blue rocks...  Especially if there's fine detail, and not a lot of huge open areas... our customers LOVE that look.

Offline Doug S

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Re: discharge washing problem
« Reply #11 on: April 04, 2014, 06:52:07 PM »
I was worried that 350 would dry them too fast and stop the discharge from working.  We've had success at everything except red shirts.  I think I've finally given up on them.  We've tried the fixer n as well as adding more base but regardless the prints still eventually turn pinkish.
It's not a job if you love doing it.