How To Screen Print: Reclaiming & De-Hazing Screens Expanded
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How To Screen Print T Shirts: Reclaiming & De-hazing Expanded
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You will find the definition to the following screen printing terms on the website:
Screen Emulsion Scoop coater Light Table or Exposure Unit Artwork Coverage Mesh or Fabric Mesh Count Frame Newton Halftone Stencil Thickness Durometer Plastisol Ink Film or Film Positive Substrate Vacuum Cured Emulsion Water Soluble Washout Booth Flood and Stroke Belt Dryer Cured Ink Flash Cure Spray Adhesive Pick Up Resolution Printing Wet Under Base Registration Pre Shrinking Light Table or Exposure Unit Vacuum Blanket Color Composite Outline Continuous Tones Halftone or Grayscale Four Color Process Spot Color Spot And Dot "Printer" or Platen Knocked Out Crest Degrease Abrade Mesh Prep or Degreaser Micro Grit Scoop coater Stirring Stick Substrate Side Ink Well
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I have watched most if not all of your Catspit Videos. I must congratulate you on the clarity and usefulness you show.
I have a home amateur basement workshop. I don't do T shirts just prints. I do have a pressure washer but must use it outside. so I don't clean up much in Winter. I live in Canada and every thing about our winters is true.
i keep learning more about this screen process. Your work is certainly very encouraging.
+James Mcintyre That's awesome, thank you! Glad I could help out from afar ;) let me know if I can be of assistance anytime. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Thank you very much! You are welcome, my pleasure to help out. Thanks for the comment!
It´s incredible how, looking at your vids again, after some months of experience gained, I can still learn small tips that I missed up the first time! :)
Thank you, my pleasure to help out. Yes, wood screens hold less tension bow with high tension and warp in the water. They are heavier and most do not stay rigid at the corners after some time. Metal screens on the other hand do not suffer any of those draw backs, they are lighter and can hold higher tensions. Thanks for watching and leaving a comment! ☠
Thank you! You’re welcome, it’s my pleasure to help out and share information. Check out the Catspit website for a lot more free info on screen printing. Link is on the channel page. Thanks for watching & commenting! ☠
Thank you, glad you enjoy my videos. Sounds like you may be having emulsion to mesh adhesion issues. You can post this question and a photo to the Catspit Forum. I can assist you best there. Check out the Catspit website for a lot more free info on screen printing. Link is on the channel page. Thanks for watching and leaving a comment! ☠
@TheSiftonStrangler Yes, you can but I would suggest doing one coat on each side. It will help with emulsion to mesh adhesion and provide for a better stencil overall. Unless you are on higher mesh counts were the stencil will be thin anyway. Then it may not matter as much. I’ve always done one on each side to encapsulate the mesh and perhaps get better bridging results. Thanks for watching and leaving a comment! ☠
@richiesalo Thank you! You’re welcome, it’s my pleasure to help out and share information. Check out the Catspit website for a lot more free info on screen printing. Link is on the channel page. Thanks for watching & commenting! ☠
Thank you! You’re welcome, it’s my pleasure. You should check out the Catspit website for a lot more free info on screen printing. Link is on the channel page. Thanks for watching & commenting! ☠
We use emulsion remover to “reclaim” screens. I have other videos about that part of the process. Check out all my uploads. You can find discounted supplies on the Catspit website. See my TH-cam channel page for links. Thanks for watching and leaving a comment! ☠
@anndjazz Good luck. Yea, make sure you don’t abrade the mesh too much by scrubbing with anything. Ink & emulsion should be removed mostly by solvents, not scrubbing. Be careful not to damage the mesh. The carwash spray booths may work but remember you will be washing inks, solvents and emulsion into the city water treatment system. Thanks for watching & commenting!
@datix No problem, my pleasure. Thanks for watching & commenting! ☠
Tis I indeed. You’re very welcome. I do my best to help everyone who needs it freely. It’s a lot of work but it brings great rewards. And it’s fun. Good luck and let us know when you need help. I appreciate the kind words and support ;) Thanks so much for watching and dropping me a note. ☠
Thank you! I am happy to hear you are learning from my videos. If I am reusing the screen in any way no matter how long it has been inked, I will use a press wash which is gentle. If I intend on reclaiming the stencil I will use the ink wash and water rinse the screen in the washout booth. Thanks for watching and leaving a comment! ☠
And if you need screenprinting supplies, please check out the Print Supplies page on the Catspit website for discounts. Use the Catspit promo codes to get 5% to 15% off list pricing plus free shipping. Offers from 3 vendors including Ryonet! See my TH-cam channel page for the link. Thanks for watching! ☠
@MonoPlus123 It is very handy. It is a Husky from Home Depot. You are welcome! It is my pleasure to help out, thanks for watching & commenting!
Thank you! I really appreciate that. Thanks for watching and leaving a comment! ☠
@tpvajgert Yes, use some “de hazer” or “haze remover” in combination with a pressure washer. That should do the trick. If not the mesh is probably trashed. Thanks for watching and leaving a comment! ☠
@duece2kTwo The Saati chemicals I use are non hazardous and drain safe. ER2 is chemically formulated to change the Saati emulsions to latex which is acceptable by most city treatment systems. And the chemicals themselves are also city compatible. If you live in the suburbs where the waste is going into a leach field may not be so good. But always check with your local laws if you are unsure. Thanks for watching & commenting! ☠
@brunoclyde34 You’re welcome; it’s my pleasure to help out in any way. Normally the metal screens are sent out for re-stretching and all you should need to do is remove the old mesh and clean ink off the frame. Otherwise you would have to use an adhesive remover or a metal power brush. Good luck! Thanks for watching and leaving a comment! ☠
That's EXACTLY what it appears to be! In those splotchy spots, where it peels up, it seems that the emulsion is just not sticking to the screen! I was told it was probably an issue with humidity, so I started using a dehumidifier, which didn't fix it. Then, I was thinking maybe I was under, or over, exposing the image? I also thought that maybe I was coating the screen too thick, in spots, but I scrape the emulsion off pretty good. Anyways, I'll try posting on your forum. Thanks, so much.
You’re welcome. I had a home owner unit form Home Depot that just blew out a line this weekend actually. It was like a 1700 PSI. It didn’t have any settings to change PSI. I think I’m going to get one form RhinoTech that is a professional unit. I’m tired of replacing these things. But you use the pressure washer for reclaiming, degreasing and de hazing. Garden hose pressure is fine for washing out stencils. Thanks for watching and leaving a comment! ☠
Hey Pepe! Very cool! I’m glad my videos can help out so much. Thanks for the support. Thanks for watching and leaving a comment! ☠
@anndjazz I’ll message you with something you can try but a pressure washer is going to be very helpful in your screen making and reclaiming. Visit the Equipment Sales page of the website to check out my picks for pressure washers from Sears. They’re not too expensive these days. Thanks for watching & commenting!
This is true. One day I will fill in all the gaps and have the equipment I really want to have but in the meantime, I can get by with the basics. Thanks for the great comment! I am glad you like the videos!
cool that's great. i'm gonna try the suggestions you emailed. i already did a bit of thinner yesterday and it made some difference but i'm worried that i'm brushing the screen with the rough cloth (i don't have a brush yet) too strongly.
also i was surfing and i came across a cool suggestion of going to a car wash to get the pressure washing done. i have two nearby to me so i'm going to try it!
Great, thank you very much. I’m very happy to hear you enjoy my videos. This was a Saati emulsion but I don’t recall which one. Maybe Textile PV which you can get at a 5% discount using the Catspit promo code for the Saati Express website. See my TH-cam channel page for a link to the Saati page on my website. Thanks for watching and leaving a comment! ☠
@Biginsworld I always recommend electric because they do not need to be ventilated. If you are doing your work outdoors, then I guess a gas one is fine. But if you are in a garage even with the door open, you would probably want an electric unit. Thanks for watching & commenting! ☠
@punkygirl232000 I buy my emulsions already made and ready to go. I use Saatichem products. You can find them on my website under the Print Supplies page at a 5% discount plus free shipping! I am not familiar with clear photosensitive emulsions. I have never used one. Thanks for watching and commenting!
@ThePenguinp00 Nice, thank you! Thanks for watching & commenting! ☠
@usernamebutton If you believe you know it is not anything splashing back on the screen from the washout booth, then the only culprit left is the pressure washer. On rare occasions pressure washers will spit grease or oil out from the innards of the unit. This is normally due to grease or oil used in the manufacturing of the unit. It should eventually clean itself out.Thanks for watching & commenting! ☠
@benfrg91 I use cold tap water which can be tepid to luke warm but I like a cooler water. Not too cold, not too warm. Thanks for watching & commenting!
Awesome, thank you. Glad you enjoy my videos. Check out the Catspit website for a lot more free info on screen printing. Link is on the channel page. Thanks for watching and leaving a comment! ☠
@dizzytoledo Because it's actually a food-service sink with three different basins. They are separated by a wall and a screen doesn't fit in any one of them. So trying to use that would end up leaving water all over the place. I have a washout booth now. Thanks for watching and leaving a comment! ☠
Great Videos, I've been screen printing professionally for about 5 years, and watching these videos, I'm still learning a few things here and there.
I'm curious what kind of emulsion you are washing out here?
I assume this is Johnathon??? Either way, thanks, again!!! You've gone above and beyond the call of duty, in regards to helping me, and others!!! Unfortunately, I haven't had too much business, lately, so I haven't had to coat that many screens. But, as soon as work picks up, I'll be trying everything you've suggested (as well as the other suggestions from the other printer, in the forum - forgot his name.) I'll let you know how it works. Cheers \m/
Thanks! Thanks for the comment too!
That would be a stencil remover and a haze remover. See the Print Supplies page on my website for recommended vendors and discount codes. Links are on the TH-cam channel page. Thanks for watching and leaving a comment! ☠
First of all, let me just say that I love your videos. They're VERY informative and easy to follow. Now, on to my problem. I've been having an issue with the emulsion coating/spray out part of the screen printing process. The problem is, I usually get what appears to be BURN marks in the emulsion, after I spray the image out.Sometimes it actually peels the whole image away!?!?! I can send pic's to you, if you'd be willing to help. That goes for anyone. Confused and tired of wasting money!?!?!?!?
You're welcome. Haze or stains are caused by ink and emulsion that stays on the mesh fibers after reclaiming. It’s often ink embedded between fiber crossover areas and stuck to any frayed fibers. It ultimately reduces the mesh opening and chokes the stencil which can cause ink flow problems. A black stain from the previous print job can make the next job harder to print. Especially say a white ink could be impaired by a haze. Thanks so much for watching and dropping me a note. ☠
Yes, much like any fabric, when exposed to physical activity it will wear and eventually loose integrity. Thanks for the comment!
Thank you! I love watching your videos!
+Shaunte Elise You're very welcome. I appreciate your support. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
It is my pleasure! Thanks for watching!
Great stuff. I might be getting a job washing screens at a local shop. Any fumes from emulsion washer? I have always just thrown the screens out in the hobby screen printing i have done. Im just wondering about fumes. Thanks again for the great videos.
thanks for this helpful vid! i was wondering.. what can i do if i don't have a power washer? i found an old screen with plenty of ink on it and i want to reclaim it.
but i don't have a pressure washer. i can get a bit of pressure on my showerhead at one of the settings. is there a slower version of the cleaning process that i can do using the showerhead instead?
cheers!
Yes, it could still be staining from the ink. How old is the mesh? Is it monofilament? Sometimes when the mesh gets too worn you just have to replace it. After the mesh fibers fray too much they will hold a lot of ink and emulsion as well as decrease print resolution. Thanks for watching and leaving a comment! ☠
LOL, I certainly have. Thanks for watching and leaving a comment! ☠
LOL, yes, I would do that if I had better editing software, the knowledge and most importantly, the time. The videos are designed to convey information first and be somewhat entertaining as well. Using 2 cameras makes for a lot of editing and cutting and so on so I try not to do it if I can help it. It just depends on the shots I want and the video topic. But, yea, I am an amateur videographer. Thanks for watching and commenting!
sorry I am new at printing. Is there a very big different between using aluminum frame vs wood frame? love your vids. Thanks.
Thanks for the informative video. Who makes the pressure washer wand with two nozzles? That wand is really cool!
Sure that would work. I have a wooden “booster seat” in my latest washout booth to raise the screen out of the water. It is pressboard with no coating and it has held up for years. Thanks for watching & commenting! ☠
Thanks for your video. I know that some people use bleach for cleaning screens, but have also heard that bleach only works when you have mixed hardener in with your emulsion coat. I have printed through haze before though, why is it necessary to clear that haze? Thanks so much.
Question! Why don't you use the big stainless sink to the left for washing out screens?
@wolfrifle16 Actually I do not. My brother uses a dip tank in his shop but it is horizontal rather than vertical so he uses less chemical to fill the tank to a useful level. He says it lasts about a month or more but that depends on usage. I spray my emulsion remover on with a squirt bottle and then let it stand a minute before pressure washing. Thanks for watching and leaving a comment! ☠
Great vid! Any concerns with putting these solvents/chemicals into the municipal waste system? As a home gamer, the last thing I need is a visit from the city/state on what I'm doing in the garage. Any thoughts on mitigation?
am new i screen printing i have a small press and i like your videos there helping a lot. thanks
Very cool, glad you found me. Thank you. I appreciate your support and I’m happy to help out.
Hey buddy, just subscribed ! I think your videos are very concise and I'm enjoying learning the process. I hope you don't mind but I want to pick your brains a little. How would you clean a screen after a days use before using again the next day? or when you shelve a screen knowing you'll need it again for another run of shirts at a later date? I hope Ive made sense, Thanks from England!
i just wanna know, im assuming you fill a dip tank with emulsion remover? if so, do you leave the emulsion remover in the tank and clean multiple screens with it then change the emulsion remover after a certain number of cleanings?
Great video, very informative for up and comers like myself, thanks!
Hello... thanks again for all your videos. I have question about how can I Re-meshing the alummin acreen? how can I clean the glue? any way?
trying to learn watching videos before open a little business :-)
Great video !!! Very Instructional
I started working in the screen printing business and they said i could use tps and degreaser together to remove the haze. i think it was tps. It works well. I was just wondering if the degreaser will work on its own. Also some of the screens are stained so much that the haze is difficult to remove completely. is there anything i can do for that?
@CatspitProductions I am wondering if I can get away with coating only one side of the screen with emulsion, the substrate side. Is this possible?
if i want to remove just the stencil and not the emulsion do i just buy a stencil remover chemical or something like that or just wash it out somehow?
I been having problems reclaiming a few of my screens.i have a 1800 pressure washer and there alot easier to clean off and stuff but now im having problems with the glue holding the mesh to the screens coming loose on the top. idk. I just bought them all. thought it may been a different brand but i did another one from someone else and it did it again. I use a degreaser and dehazer in one from ryonet. it didn't do it before i had the pressure washer. but it was a pain to clean off with a garden hose
Radioaktiv Media Try lessening the pressure by backing off. You only need about 1200 PSI but 1800 should not really do what you are describing. Have you tried my screens yet? ;) They are very good and the mesh should stay on. But if you're seeing this happen with different brand screens then perhaps try a different haze remover that is not an all in one. Not exactly sure since this does not happen that often and when it does it normally means cheap imported screens. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
CatspitProductions Actually I plan on buying screens off you very soon. I bought them from Ryonet lol.
Radioaktiv Media Very cool. Thanks. LOL.... yeah I think my screens are better ;)
You're very welcome. Mesh prep is important. Very much so. I saw your post I do believe and answered it in great detail I think. Check it out, I hope I helped you and thanks for posting on the forum. That helps me help everyone ;) Thanks for watching and leaving a comment! ☠
No problem, it’s my pleasure. Good luck! Thanks for the support! ☠
I have a stain residue on my screen after my production runs. I have a ink stain remover chemical but it doesn't seem to work. I must admit I clean the ink out of my screen but I don't always reclaim them right away. Is that why I have the stain that does seem to come out even with my pressure washer?
If you are using a haze remover and getting these results with a pressure washer the mesh may just be too worn to be cleaned anymore. At a certain point the mesh fibers will become frayed and hold ink easily where they cross. At this point you are also losing ink flow with the mesh as well. You could try a different haze remover, a better pressure washer or replace the mesh. Thanks for watching and leaving a comment! ☠
nice teacher...is that plastisol paint is water base?
Ferdinand Lopez Thank you very much, I appreciate your support! I use mainly plastisol inks unless otherwise stated. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
your videos are very helpful
Thank you very much, I appreciate the support. Please make sure to subscribe ;) Thanks for watching and leaving a comment! www.catspitproductionsllc.com/ - catspitscreenprintsupply.com/
Yet another great video, Many thanks for posting.
very nice how you explain everything
I can see why Aluminium frames are better. So the mesh has a limited life too? I didn't realise that.
Good vid. Johnathan.
5 stars
Im new to screenprinting, what is the best way to clean and save a good screen.
Here are a few videos that should help:
th-cam.com/video/02SSBBiT8cc/w-d-xo.html
th-cam.com/video/cqfnMOA3I4g/w-d-xo.html
th-cam.com/video/bEWkPyKQuRY/w-d-xo.html
Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Oh I am not sure anymore. It’s tucked away so I don’t see the thing much. But I think it’s about 1700 psi. You should be able to use any unit from 1200 psi to 2000 psi. The more pressure the better but be careful not to tear mesh by getting too close with the spray. Thanks for watching and leaving a comment! ☠
what two products specifically were you using??
What chemicals do you use to remove the emulsion on the screen?
I have a new problem when reclaiming a screen, after I wash ink off, then remove stencil, I do a final spray off (pressure) and I get 3 to 6 fine black dots randomly hit the screen. They look like ink splashing back, but I cant figure out where they are coming from. I cleaned and painted my whole wash booth and bought a new gun for my pressure washer and still get these dots. I will go NUTS very soon. Any Ideas? Thanks
are de-hazing and de-greasing the same thing? is de-greasing really necessary? thanks
what is bar pressure of your pressure washer? Which pressure washer you use? I am thinking about bosch. Bosch Home and Car Washer AQT 35-12 is ok ?
You can use anything from 1100 PSI to 2500 PSI. I have an industrial unit at about 1500 PSI. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
What kind of water pressure machine do you use? These videos are great help!
Thank you!! I actually have an industrial unit. I have this unit now: catspitscreenprintsupply.com/rs1500a-pressure-washer-heavy-duty/ I'm glad you like my videos, thanks for watching! www.catspitproductionsllc.com/ - catspitscreenprintsupply.com/
How do you get a double image out of the screen. Even after reclaiming them there is still an image from other designs. How do I get rid of this?
You need to use what is called a haze remover or a stain remover. The “double image” is ink stained in between the mesh fibers. A haze remover used with a pressure washer will remove that ghost image. I have videos on this so check out my collection of uploads. Thanks for watching and leaving a comment! ☠
i type...How To by CatspitProductions and Boooom!
i learn a lot :)
No fumes from emulsion but the chemicals used in the washout booth can mist and get airborne. A respirator is advisable if you’re concerned. But most chemicals these days are pretty user friendly. It’s the haze removers that will be the most hazardous. Thanks for watching and leaving a comment! ☠
THANKS' JUS STARTN SILKSCREENING. DOING ALOT OF RESEARCHN. HAVNT' DONE 1ST SCREEN YET. BUT U MAKE THE DIRECTIONS' SO EZ. IWILLB SUBSCRIBING. THANKS'AGAIN
How do you not have emulsion and ink splatter anywhere?
Thanks for watching and leaving a comment! ☠
thanks for the video sir... i learned so much from it....
whats the psi on that pressure washer?
How's it going? Really appreciate your words ive been learning a lot from your videos. I was wondering what brands & in what quanities you purchase your emulsion & other chemicals in. Emulsion remover, de-hazer, degreaser etc. . It would be greatly appreciated!
Matt Durney Good, thank you. Glad you enjoy my work. I buy by the gallon. Thanks for watching!
LOL, that’s because this was a cooperative warehouse and we had to clean everything very well immediately after usage. We sub rented the place from a friend and he was insistent we didn’t “ruin” anything. I had to work immaculately there. But it wasn't as clean as it looks I think. Thanks for watching and leaving a comment! ☠
Thanks for the info , much appreciated.
How often should you replace the silk screen on the frame?
It should last a very long time and earn its money back easily. But this video may help you out in answering that question:
th-cam.com/video/gjKpOj039j0/w-d-xo.html
Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
If you were working with very under exposed screens, printed with them, cleaned them and let them set the emulsion could have absorbed chemicals making it permanent. You must also use a pressure washer when reclaiming screens. But yes, under exposed emulsion can get “locked” due to absorbing other chemicals when in use. If a pressure washer and emulsion remover don’t work then they are ruined. Thanks for watching and leaving a comment! ☠
Best video I've seen on this process! Quick question, I've been left with a slight "ghost image" after completing this entire process. Is it ok to just leave that on there or should I make another attempt to get it out before I try my next run?
Thank you!! You should try to remove it so it will not impede the inflow on the next print job. Use a haze or stain remover with the pressure washer for final clean up before prepping for new emulsion: catspitscreenprintsupply.com/haze-remover/ Thanks for watching! www.catspitproductionsllc.com/
Hey man, love your videos. Do you ship to the UK?
Thank you very much! I can export but it really only makes financial sense for larger equipment orders. Chemicals, inks, aerosols and such cannot fly so they need to go by ocean freight. And heavy stuff costs more on little orders than it does overall on heavier items like a few pieces of floor equipment. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
which lequid are you use for removing???
+GTA 5 BALLU INDIAN BOY I use an emulsion remover. I like Saati ER2 but the RT and other products I sell are all tested and approved by yours truly.
catspitscreenprintsupply.com/emulsion-remover/
Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
thnxx CatspitProductions
+GTA 5 BALLU INDIAN BOY You're welcome.
CatspitProductions your job is awesome thnx for answer me!!!!
+GTA 5 BALLU INDIAN BOY My pleasure ;)
Let me first state that I appreciate your videos as I am still learning. I was wondering if it is alright to use my screen again even though it has a stencil stain/ghost image? Mind you, I am printing on gesso board and not fabric.
Thank you very much! I'm happy to know you find my video work to be informational and helpful. Yes, you can do that but it may restrict the ink flow where the stain is. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/