Screenprinting Screen Making: Getting Detail & Halftone Exposure Tips
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- Опубліковано 27 сер 2024
- CatspitScreenPr...
This educational video is about exposures for screen making when you’re printing tee shirts and other preassembled garments. In this video I use 2 screens of different exposures of a halftone to help explain what more exposure time means versus less exposure time in relation to detail. The camera is really bad at picking up the detail of the halftone on the screens but I think you’ll be able to see the difference in how much dot was rendered between the 2 exposures. On one screen you can barely see the dot and it certainly won’t print well at all. The second screen has much better dot detail and will print the halftone below the 20% gradient range well enough for our purposes. I may be able to fine tune the exposure some more to get the halftone perfect but I liked the look of how this one developed and I really do want a vintage screen printed poster look. That means I don’t necessarily want it to be a technically perfect screen. But you can use not only you’re mesh count to get details in emulsion, but the exposure time can also be critical. That’s what I hope to explain in the video and help you better determine your exposure times for making screens. I think the screen with the least exposure time of the 2 will print fine and look pretty cool in black ink on white poster board. Since I forgot to mention this in the video; 45 LPI on a 230 yellow mesh screen.
I used Saati Textile PC Blue emulsion in this video:
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I used a Ranar LED exposure unit in this video:
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Thanks John. I really needed this. I am having a hard time with a halftone job.
You're welcome. I hope the video helped you out in getting your halftone screen done. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
This was so useful, exactly what I needed to learn and so well explained too. really appreciate it. Thanks!
Nice. Glad I can help out through my videos. Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Thank you for this video it was really helpful. Last week I had to make one screen 3 times in order to get the detail. My exposure unit is really primitive but i guess everyone learns from the mistakes. Now i actually calculate my exposure time depending on the detail i need to get.
+Nikola Petras You’re very welcome. Screen making can take some time to get used to ;) Glad I can help out through my videos. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
love your videos! CatSpit for president!!!
Thank you much! I appreciate the sentiment :) Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
so many variables ...is the key of that video ... not the same in Montréal than in California ... light, humidity, etc.... Thanks Jon for this excellent (once again) video ... you're so constructive and informative !!! Great !
+Christophe Delhougne This is so true ;) You’re very welcome. Thanks so much!!! I appreciate your support. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Just a tip.... a step wedge test can help fine tune your exposure time to get the detail you want. I’ve noticed no one ever talks about this tool anymore.
Actually that would have set me back to zero point. I'm already familiar enough with my emulsion and exposure unit that I do not need an exposure calculator. It's actually pretty easy to guesstimate your exposures once you have been working with the emulsion for a while. I don't think people use them much because it's really best for when you have no clue. Then it can dial you in but experience will far outweigh an exposure calculator in my humble opinion. And it's likely that I would have to tweak the exposure still myself from the exposure calculator to render all the dots as I wanted here. Some exposure increments are impossible to see on the exposure calculator. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Oh no, I was not referring to your personal use, I was referring to newbies, trying to figure out their sweet spot for burning. I've seen many videos of guys shooting 6 screens just looking for a more or less time. A person of your expertise can show these people starting out, how to use the step wedge.
@@miguelsemidei7619 LOL... sorry ;) I answer so many questions some times I miss things. Yes, it could be helpful to a beginner. I'll probably do a video about a very old school way of doing a wedge test.
Thanks Johnathan.
Can't wait to get the new LED exposure unit!
You're very welcome. Did you buy your unit from Catspit Productions? I could not find your name in my invoices. Did you get tracking yet? Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
I'm local. I'll be in very soon, again thank you very very much. I've been watching all day. you are super helpful
You are very welcome. It's my pleasure to help out and I'm glad you are finding my videos to be informational and useful. Feel free to stop by the Phoenix area storefront any time. If you are driving from a long distance please give me a call before you stop by. I am currently doing physical therapy and such for my shoulder surgery. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
I love your clean workshop by the way 😍👌
+Penelope Brainstorm LOL ;) Thank you! I love to work clean.
I appreciate your time doing these videos really helpful and enjoyable, thank you, keep up the great work, very cool 😎
+Penelope Brainstorm :) You’re very welcome. Glad I can help out through my videos. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
i love your videos. I'm trying to get into screen printing and they've been very helpful. i live in az and would love to come by your shop some time. have a blessed night
Thank you very much. I'm glad you enjoy my video work. It's my pleasure to help out in any way I can. Feel free to come by the Phoenix area storefront for a visit anytime. You can find my hours of operation on my e-commerce site. If you're traveling from far away please give me a call before you come by. Sometimes I do close the storefront in order to take care of other things. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Good video! Thank You for sharing your knowledge and your teaching style is very clear!
+Street Glide69 Thank you very much, I appreciate your support! I'm glad you enjoy my teaching style :) Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Hi, you indicate that your exposure time on the over exposure was ten seconds and the under (correct) exposure was 7 seconds. Can you tell us what exposure unit you're using, and what emulsion? Thx.
Actually the details are in the video description with links to the exposure unit and emulsion. Click on show more and have a read. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Very helpful, thank you!
Nice, glad you enjoyed. You're welcome and thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
thanks for your share about the screen printing field knowledge
+alex yue You’re very welcome. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Exelent vid. Just what I need it to know. Do you use the pressure washer on half tone . because I allways get clouded spots , image looks. Ok on the light and when I print I get spots with out ink. Im not being able to get a prefect screen i do 45lpi on 230 mesh thanks.
Thanks! No, I never use a pressure washer to washout the stencil. Only a garden hose with tap pressure, spray nozzle and cold water. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
I'm really learning with your videos! Keep it up man!
Now i must steal a bank to kickstart my own printings. Damn you...
+Pedro Vieira LOL... Have I infected you with the screen printing bug? LOL ;) Glad you enjoy my videos. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
I've always been a sucker for computer graphics and really expensive mountain bikes.
Now i feel educated and miserable at the same time...
I hate you.
+Pedro Vieira LOL.... sorry my friend. I can't help but make such contagious videos :)
Great work, and very helpful/informative...although I think you need to explain how heavy or light your hand is in coating emulsion , one pass on each side? Thanks for the video, your timing is right on as I just did a halftone with great results, on a 1-1 pass and 1:15 exposure time...can't wait to try 8-12 seconds....!!
+HartScreenPrinting Thank you! Okay this was on an LED exposure unit so that is why the exposure time is so short. I put the details in the video description. But yes, I always "preach" a 1/1 coat using the thin side of the scoop coater. Lower mesh counts naturally hold more emulsion than higher mesh counts even with a 1/1. And a thinner stencil not only holds more detail easily but it is easier to expose. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
I've been watching you for years. Basically first time I decided to make my own t-shirt was 3 years ago and then I saw a video from you and understood the process. I think I will be ready soon for my first half tone. As I come to understand exposure is very important to be able to achieve the 10% gradient ranges.
My question is: would you advise using a 100W UV LED lamp with a make-shift stand for exposing my screen or should I wait until I save enough money for an exposure unit similar to the one you have in this video?
I am not doing this for money yet, I am still doing it at home as a hobby, my job is in a separate line of work (completely)
Thanks for watching. Glad I can help out through my videos. An exposure unit like mine will produce halftones easily but there's no reason why you can't experiment with what you have and see what results you get. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
This hippie sure helped a lot
AWESOME!!!
Thank you!!!
You're welcome. My pleasure to help out where I can. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Hey, Catspit, do you think a 230 mesh like the one you used in this video is good to print lettering (an academic degree) or should I go to a higher count? Also, is waterbased ink appropiate for a project like that? Thanks a lot for your videos.
Do you mean you're printing poster card or paper of some type? Then yes, if the ink is very thin and you are printing on a non porous, smooth material. Especially if we are talking about small text/letters. You're welcome and thanks for watching my videos! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
@@CatspitProductions yeah, it will be printed on paper. thanks for your answer, bro!
@@omahr.carpinteiro You're welcome. My pleasure to help out where I can.
thank you very much for your video and great tips. I already subscribed to your channel. I'm just starting in this beautiful art and need lots of help on which ink could work for me better.
+230288chapin You're very welcome. My pleasure to help out where I can. Check out this video for the differences between water based and plastisol inks:
ua-cam.com/video/FZ-laDUJsO8/v-deo.html
Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Does the mesh count matter in the under/over exposure? I print a lot of detail with 305 screens and usually exposed it for 100 seconds... should I reduce the exposure time?
If you're getting the detail you need then you're fine. You should adjust the exposure as needed to render the film positive properly on screen. Sometimes you may have to adjust for yellow mesh and lower mesh counts naturally hold more emulsion so they could take more time. It can also depend on your exposure unit. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
what kindof exposure unit do u use i just started screen primting and i have some 305m screens yellow mesh i have flourescent
Great video jon ... x
+BABY' DAN BAGSHIT Hello love ;) Thank you very much, I appreciate your support! Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Hello! I watch your videos all the time and THANK YOU!! I’ve tried a variety of different things when trying to burn halftones. My most recent was a 230 yellow mesh, screen coated once on each side, exposure time about 10 seconds less than what I normally use. My image seemed a tad stubborn to washout and some of the half tones “blew out” and left pinholes in the image. Any pointers? I read one of your replies stating that yellow mesh can take longer, but half tones can take less... do you think it was over exposed?
You're welcome. Glad I can help. If details you wanted were difficult to washout then try a shorter exposure. It's possible you choked the dot. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
I would like to know how this system works because, in my opinion, the ink will pass through all the sides and not have emulation, you could help me. my whasatp is 18295496430 thanks
That area of the screen is taped off. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
hey, sorry if ive commented on the wrong video (i really like all your videos by the way) but i expoed a screen today and continued to wash it out and it washed out fine and was going well, but then i noticed some of the details were washed out and the stencil had bust and blown out, these details are several lines about a millimeter wide, i can show you via a picture if you want, but anyway i was just wondering what should i do?
Thank you, I'm glad you enjoyed my video work. I appreciate your support. There are many things that could be causing this problem. Possibly poor mesh preparation or perhaps you did not choose the proper mesh count. You can post your question and images on my forum:
www.catspitproductionsllc.com/forum/viewforum.php?f=6&sid=c8e04546c64e0e4b6cacbd141b7fe1b0
Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Great video. Thank you.
Thank you and you're welcome! Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
I've been attempting to burn my own screens and I've noticed the ink from the film positive gets stuck on the emulsion and ruins the film positive would that be cause the ink or emulsion ?
It's probably too much humidity in the emulsion or too much ambient humidity in the air making things sticky. Be sure to allow sufficient time for screens to dry during high humidity seasons. Also allow the inkjet film enough time to set. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
got it thank you for the response
My pleasure to help out where I can.
hi, just wanted to ask...what lpi is the positive and what screen mesh did you use?
+paul waugh Yeah I was bummed I forgot to mention details but this was more about general exposure tips so I guess its' not that bad ;) However the LPI was 45 and the mesh count is 230. I used an LED exposure unit. I put the details with the emulsion and everything in the video description. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
i need to print some very fine detail and text (like 1-2 pt. text) on printed circuit boards - can anyone recommend a technique and/or specific inks to use etc?? it's a resin base ...
That's a bit out of my area of expertise but the screen printing process would be pretty much the same except you need the correct ink for your substrate and the proper mesh for the detail. The emulsion would also be specific to the inks. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
yes that's why i came to this video ... i've never screen printed before but I do have a photography and graphic arts background - used to work in a ad agency in the 80s doing lithographic plate exposures - which probably ain't SOOOO different (everything you said in your video was like 'yeah yeah i know i know ...' heh )... ! i bet you could get a TON of hits though if you were to make a video on screen printing circuit boards .. and how to 'DIY' ...
@@antigen4 Yes, screen printing today is a photographic process as far as screen making goes. Yeah like I said that's a bit outside my forte and I would have to learn everything in order to do that. A video like that would cost me some money to attempt to make being as I have nothing for it except some basic fundamental items for screenprinting.
What kind of emulsion did you use
Saati Textil PC Blue.
catspitscreenprintsupply.com/collections/emulsion/products/saatichem-textil-pc-blue-emulsion-gallon
catspitscreenprintsupply.com/collections/emulsion/products/saatichem-textil-pc-blue-emulsion-quart
Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
Thank you very much. This video helps!
+Marco Jimenez You’re very welcome. Glad I can help out through my videos. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
What exposure unit, system, or style did you use to expose this one. Thank you for the videos keep making them.
+Jonathan Reyes All the details are in the video description since I forgot to mention them ;) But I used an UV LED exposure unit for this screen. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Thank You so much Sir....Thank You so much now I understand why... Thank You so much....God Bless you...
I need to ask more Sir... How strong is your light for a 10 seconds exposure? And How much is the photo film paper for inkje A3 size?
+nelson vallarta You're welcome, I'm glad I could help out. I use an LED exposure unit probably at about 350 or so nano-meters wavelength UV. I sell inkjet film in the US:
catspitscreenprintsupply.com/inkjet-film/
Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Hi Catspit, is there any formula which mesh to use according the halftone export from photoshop using a rip? Greetings from Europe and hope I can buy your stuff in there one day
Hello there in Europe. I really do not know anything about Photoshop. I use Adobe Illustrator with RIP software so I wouldn't know anything about what is available for Photoshop. Sorry that I can't be of much help here. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
do you use accurip for this?
No, I use Film Maker 4.
catspitscreenprintsupply.com/filmmaker-version-4-rip-software/
Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
I have a request.. I watch your videos often. Can you make a screen printing video without all of your high tech gear? I do this stuff in my room. I sleep with all of my screens at night. How can I use my 300w light Bulb to expose these screens? What I do is: Layer the emulsion on the screen with a 9in 22.8cm speedball squeegee, not to mention the screen. Let it sit for 30 minutes flat inside my cabnet..
Thanks for watching my videos! I appreciate your support. That may be difficult for me to do since I do recommend having certain things like a scoop coater. Spreading emulsion with a squeegee is not the best solution. A 16" scoop coater is $23.95 plus shipping. That investment will improve you screen making life by leaps and bounds. I would also recommend a 500 watt work lamp at the very least to make things much easier. Those cost about $15 at Home Depot or Walmart. You should also allow ample time for a screen to thoroughly dry with emulsion. My goal is to teach the easiest way to screen print commercially. I'm not really an expert on home brews even though I may be able to muddle through due to my experience. I'll see if I can do a "home brew tips" video perhaps. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
How much is the possitive film paper, can I buy it from you and ship it here in Saudi ARabia.. Do you have an A3 size?
No, sorry. You'll need to find this closer to you. It's not practical for me to export small supply orders. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Hello sir I m from Nepal , frist of all i would like to very thank you for made this video which very soport me to work
Sir i just start screen printing and i am trying to my best ,
May i ask how to made halftone photo for black tshirt by photoshop and which photoshop softwere is good for us?
You are very welcome. It's my pleasure to help out where I can. However, I do not use Photoshop and I would not know how to instruct you on that. But there are many videos about Photoshop and creating halftones here on UA-cam. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
What mesh count did you use in the video?
+Monte Prieto It was a 230 mesh. All the details are in the video description. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
what mesh # does your screen have?
This was a 230 mesh. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
👍
Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
have you ever thought changing your business name and music background? I came to a conclusion that Catspit sounds more like a veterinary parlor where people take their animals and dogs for nail clips and hair combing. If I was the owner I would changed to Premier Silk Screen Printing or Master Royal Screen Print Shop.. if u ever chance your music use Kurt Cobain's Smells Like Teen Spirit punk rock song.. grungy sound
There some history and background story behind my name and logo as well as intro music. I'm more of an artist than a businessman and I cannot please everyone with any which way I go with that. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
There is no available here in Saudi Arabia Sir... What if I find an employer and We sell your product here..Everything about silkscreen... All your product
No, sorry. I'm not looking to expand into Saudi Arabia at this time. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/
Um... where's your exposure calculator? Screen mesh? A lot of instruction and stencil making details were missing. Emulsion? Proper rinse out technique. This video was a bare bones introduction for beginners.
I have been doing this since I was 11 years old. I do not need an exposure calculator. I know my emulsion and my exposure unit well. This is a general tips video and I would have mentioned mesh count if it were relevant to these quick tips. Besides the tech info is in the video description. But printing tee shirts is not as technical as other forms of screen printing. And there are more ways to do things than just one. So your "proper washout technique" maybe your personal preference. I am a dealer for Saati so I know all about how the technical guys would do things. Not necessary for tee shirts. But feel free to make videos sharing your methodology. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
because you do not make a real demonstration of how that system works that you do not have to add up thanks
Not sure what you mean. This was a discussion on 2 screens and how I achieved the detail on both. The example was the 2 screens we looked at and discussed. Thanks for watching! Screen Printing Equipment & Supplies - CatspitScreenPrintSupply.com/
hi there. been watching your videos quite a while now. can you discuss please details on INKS. MIXING Binders, Extenders and do you have a facebook account? can i add you there. for some other inquiries. thanks...
+Ishi Soriano Glad I can help out through my videos. Once I get a water based ink line I will address those things. With plastisol we usually do not need to add anything unless it's a special application or effect. You can find Catspit Productions on Facebook. But if you want to ask screen printing questions, using my forum (www.catspitproductionsllc.com/forum/) or emailing me direct is best. Use the contact form on either of my websites. I do not hang out on Facebook. Thanks for watching. Screen Printing Equipment & Supplies - catspitscreenprintsupply.com/