Screenprinting: Why Does Plastisol Ink Wash Off A White Under Base In Laundry?
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- Опубликовано: 28 авг 2024
- CatspitScreenPr...
Here’s a screenprinting educational video about why plastisol inks can sometimes fail to bond to a white under base. This type of situation could occur anytime you are over printing plastisol ink onto plastisol ink that has been flash cured on press. It doesn’t always happen but it’s a possibility whenever you flash on press and over print that flashed ink. Why does this happen and how can you prevent it? This video discusses the topic briefly as we extend our discussion of flash curing on your screen printing press when you are printing tee shirts. This video is specifically about plastisol inks and you may have never experienced this problem yourself. But it’s a great tutorial that can help you better understand how to flash cure on press. If you’re printing a multi colored job with a flash cure and you have seen the plastisol ink printed on the white under base come off in the laundry, then this video is a must see. So take a few minutes and watch this tutorial video about screen printing t-shirts and learn more about flashing on press during printing. You’ll learn some valuable tips that will make your screen print life much easier. Thanks for watching and enjoy the video!
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I wish this video is closed captions but this is one of my struggle areas right now. I have watched just about EVERY video from Catspit and love it. This video is very important and would like to know if it's possible to submit a request to RUclips to have this closed captions, please.
Awesome, thanks for your support. I think RUclips will eventually transcribe this with their software. It works pretty good these days. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
thanks for the great info just gettting ready to try this for the first time!!!!
You're welcome! Good luck :) Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
ill make sure to promote ur channel in India
Thank you! I need all the help I can get :) Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
@CatspitProductions it shows I'm learning something because I knew the answer to this videos question :) ..... and that's thanks to your other videos lol.... brilliant
Very cool. Glad you're learning from my videos :) Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Do you experience when printing a white base P/F/P/F and print a blue on top, especially on sweats, little white dots showing through the blue? White screen: 156 Blue screen: 230 - 156 Not a problem on Ts usually so it must be the quality of the base/white ink being used. Union Eclipse (short body which sucks) White dots can happen with other colors too but much more noticeable with the blues.
Usually that would indicate the under base not being smooth enough. The white dots are lows in the under base where the blue was not able to fill them in. So you can either do a smoother under base or use a lower mesh count for the blue allowing for more ink flow which should fill in those lows. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
nice work thanks 4 share
You're welcome! Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Great Job
Thank you! Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
5:58 if I flash cured and not semi-cured. Will heating the shirt to 400 help? What temp is a semi-cure? I had a job where almost every shirt washed out (white on white) and I cured (final cure) at 340
Semi cured is "flash cured." The purpose of flash curing is to dry the plastisol ink to the touch and no more. Screen printing is often not so exact. I cannot tell you an exact temp that will work for you. Experience matters here. It depends on how much ink you actually print. That will determine how long you need to flash or final cure. The brand of ink may also be important. Usually plastisol ink needs to be heated to about 330 degrees F. If the entire ink layer does not reach that temp, it will wash out. I have 1 or 2 or more videos that will help you understand curing plastisol inks.
thanx
Youre welcome! Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
QUESTION: Is over curing a greater problem when using a single station press because the platen does NOT have time to cool down and the heat of repeated flashing over heats the platen so the print is being heated from the top & bottom? Wouldn't use of a 4 or 6 station press solve this problem?
Yes, absolutely. With a rotary press, this should be less likely. But sometimes over longer runs on a rotary press we can see heat build up especially in aluminum pallets which will shorten the flash cure time. You always have to be on the ball ;) Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Can you tell me if you have a wash away ink - that is you will screen print a design onto a cotton fabric - then once stitched with a cotton thread the ink will wash away once washed. Do you know of an ink where this process will happen. Thank you
No, I do not. Sorry. Textile inks are usually designed to be permanent. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
wonderful ,.... Sir
Thank you! Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Very educational video. I'm just beginning to learn the basics of screen printing. I'm guessing that less is better than more when it comes to flashing. Out of curiosity, what would happen if you didn't do any flashing during the printing with multiple screens / multiple colours?
Thank you, glad you enjoyed. Yes, less is more. You do not want to actually cure the ink when flashing. Sometimes we can print wet on wet. It depends on exactly what you are printing and the inks involved. Also printing wet on wet is usually much easier on an automatic press rather than a manual. Autos are very consistent. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Thank you for your videos. They are all very informative. I'm starting off very noobish. Is the final cure in the belt oven important. I do not have a belt oven, but I do have a flash dryer. Is there another way around that? Thank you for your time sir
You're very welcome. Glad I can help out through them. The final cure is critical no matter how you achieve it. It can be done with a flash cure but it will take some meticulous exactitude in curing each print 1 by 1. I have a video about this. You can find it in my uploads. Just search my videos for curing with a flash. That should pull it up. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
@@CatspitProductions thank you for that quick reply. Jumping into this bizz with nobody guiding me is a headache. My flash dryer doesn't reach the temps for cure. What temps do your flash dryers on your site reach?
@@cookiehead89142 My pleasure to help out. The flash panels probably reach well over 500 degrees F. They are very capable of curing plastisol inks. I wouldn't sell them otherwise ;)
Does anybody knows why my plastisol stay in the squeegee becomes very sticky so I have to use a spatula to move it down from the squeegee
Could be the ink or perhaps you're simply using too much on screen. But plastisol ink is usually pretty thick stuff. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Is there a way to restore and reuse old plastisol inks
That depends on why it needs restoring. Meaning, if it has reached about 150 degrees F and has gelled, then no. If it's a little old, thick and the plasticizer has separated, then yes. Simply mix it thoroughly. But if you're concerned always do a test print and wash test to determine if the ink is still usable. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Do you recommend a white underbase for tri-blend t-shirts like Next level if I want to print some color ink?
I would probably recommend a polyester white ink under base, yes. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
@@CatspitProductions awesome... Thank you. I'll look at what you have! 👍🏼
@@frontlinestrong My pleasure. Let me know if I can help further.
Would u have this issue with water base ink
The same video with water based inks? No, sorry. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Hi.bro..Is white plastisol ink good for small fonts like washing instructions or fo neck tag fonts.thanks..
Maybe. Depends on how much ink you're going to print. Sometimes it's easier to use black ink when you can or gray ink. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
@@CatspitProductions glad I came across this video. So I'm having an issue with printing just white on a colored shirt. My ink is washing off after one wash and I'm using 100% cotton ink on a 100% cotton shirt.i dont think im curing it correctly. If I cure it on the heat screen, would it help if I use a heat press also ?
@@CatspitProductions or how do I get the flash cure hotter. I doubt mine is at 320 degrees
@@JV-fj7nv It all depends for what reason the ink is washing out. It's likely under cured. But you shouldn't need to use both if the flash cure unit is decent. Lower the flash head to make it hotter or maybe let it sit longer under the flash. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
@CatspitProductions, what brand inks are you using? I'm having a hard time printing on black shirts.
These days I use the same inks I sell on my ecommerce site:
catspitscreenprintsupply.com/textile-inks/
Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Why do u use plastisol over water base ink?
@@msgonzalez535 You can use whatever ink you like but plastisol is generally easier to work with because it does not dry in the screen while you are working. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
what press is that, that you using?
That was my old 6 color 1 station Ranar press. I sell them on my ecommerce site ;) Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
how to buy your screen printing equipment in India ?
Everything international is prepaid by direct bank to bank transfer. Contact me if you need assistance. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Why aren't any companies sewing the shirts with the 'prints' on them so they actually last for a while? Now all prints wash off after a couple of months and then your money is gone
Not sure what you mean. Direct screen printing when done right will outlast the garment. The ink does not wash off. Whatever your referring to it's not a properly done screen print. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Went is your music so intense man, its just silk screening.
Because my videos are so epic? LOL... it's just rock and roll baby :) Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
@@CatspitProductions sounds like a Mesa Boogie Triple Rect :)