Getting Started In Screen Printing. How It Works And What You Need!

Welcome to make some time with me, David piccolo. And today, we're going to learn the basics of screen printing check. It screens. Printing is a process of pushing ink through a mesh screen in its current state and can pass through this entire screen.

So we need to mask off the areas where we don't want ink to go through we'll use a photo sensitive, emulsion coat. The entire screen, put a transparency over top of that, expose it to light and then wash it out. And our image will appear on the screen that me. Can use to print posters, wood and whatever else you want it's a really cool process and I want to show you how you can do it at home I'm using pre-made, aluminum frames, I've already, gone ahead and clean the screens using a degreased I'm using a dual-core emulsion, which comes in two parts. And once you mix it, it becomes light-sensitive. So before I open this up I need to turn off the lights and use the darkroom lights one using this.

This is a scoop coder. This is made for this size screen, and I'll. Lean my screen up against my bench we're, going to do the back side first, and then we're going to flip it around and do the other side.

So I'm going to take my scoop quarter and I, put it on the bottom tilt it until the emulsion hits the screen and good pressure and nice and even speed all the way up to the top. So now we're going to flip it over this way should have a pleasant even surface on there. That looks pretty good I'm. Going to do a second screen because we're going to do a two color process. So now we need to.

Let this dry for about 45 minutes to an hour, but it does need to be completely dry before we move on to our next step. So now that the screen is dry it's time to expose it I'm, just using this piece of wood because that's a lot flatter than my floor, I have a very uneven floor here, and I'm going to set this piece of foam in there that's going to fit inside the frame, that's just going to put pressure up on the screen. And then I printed out.

This transparency, I've got two of them one for each color of my. Prints, you can print these out on a printer. If you have a good quality photo printer like an Epson or a Canon or go to your local copy center and have them make a transparency for you. So I want to place this down upside down on top.

Here, I'm going to take a sheet of glass and put it over top of that between that glass. And the foam underneath we got a nice positive contact, where that can't slide around and move in order be right up against the emulsion I have a UV light again, I'll have links to all. The stuff that I use down in the description, I've done some tests already, and I want to set my light to 13 and three-quarter inches from the top here. So this is a little exposure calculator. And on my test I've learned that I need to expose my screens for 10 minutes, but I'm going to use this calculator every single time, because as this bulb gets older I'm, gonna need to expose a little more and there are different numbers on here. And we want to reach up out of 7 and that'll make them a little.A bit more sense here in a little when we do the wash-out, so I'm just going to take this little calculator and throw it in here. I got my timer on my phone I'm going to expose this for 10 minutes, there's those shut off the light.

So the next thing I need to do is wash this out I don't have a water source here in my shop. So I'm going to throw this in a couple of garbage bags. So it doesn't get exposed to the light take this into the bathroom and wash it out in the bathtub. First thing we need to do us.

Get both sides, what that'll stop the exposure and let the emulsion get a little soft for us to wash out. So now, let that sit and soak for a minute I'm going to use the sprayer head to wash out our non-exposed area of the screens. As soon as it starts to come out, we can turn the lights on and see a little better that looks perfect. I got a perfect exposure are there that came out nice and clean looking at our exposure calculator.

Here, it's supposed to be at a seven. It did wash up to about a. Six maybe at five, so that means it might be just a little underexposed, but everything else looks good.

If it was a warm day, we would just set this out in the Sun and let the Sun finish curing the rest of the emulsion, but it's snowy and wet and rainy today. So we're going to put this back underneath the UV light for a little. And let that cure exact same process. We got our second film down on there on the second screen turn on the light. Alright times up let that dry underneath the UV light got.

A fan going on there. We need to tape off the edges, and I'm just going to use some packing tape. This will just stop Inc from coming through on the edges, where we had our exposure calculator, we're going to block that off with some tape on the bottom.

So ink doesn't get through there. And if you have any little pinholes, which I do, you can either use tape or a screen filler, or you can even use the emulsion that you used earlier and just fill them up. So ink doesn't get through, so I'm going to take a piece of. Plywood that I have, and then these are screen printing, clamps I'm going to screw them down to the plywood, and then that will allow us to attach our screens to this cool. Beans I've got my paper here, and I've got my two films, I got the red film and the black film, and I'm going to line them up.

So then I can see where I want them to go on my paper, I'd say, about right there that looks about centered, I will tape the bottom film right on to the paper. So then I can use this to figure out where my paper. Needs to go because I can see through the top then once we get the paper where we want it. We can mark out our corners. This is where I want my paper to go. I need a positive. Stop I'm.

Going to use these little rulers and then just tape that down. So now I should be able to quickly come in and put my paper down. And what that also does is it raises this up just a little, so there's, no contact with the screen on the paper. You want a little of off contact the squeegee that you want to use should be. Made for this size screen will pour ink on to the screen and a line will lift it up.

We will flood the screen not pushing it through set this down. And then with good amount of pressure, push through and that ink should do its job. So we'll lift. This up will flood the screen put it down. And then with a good amount of pressure lift, flood the screen pull out our print. We did a couple with the pull technique and a couple with the push technique. The push technique definitely works a lot.

Better we'll. Put our paper in here, we push we lift it up. We flood the screen. And then we put our next one in on the last one don't do the flood. So all the ink is in one side there we go. So now it's time to clean up.

This is the messy part I got to do this in my bathroom I found that if you have soap scum in your bathroom, the ink is going to want to stick to that. So having a clean bathroom, certainly helps before washing out I also like to remove the tape. And if we're going to use the screen again, we'll just. Retaping, we got our second screen in there it's all taped up got the pinholes all cleared up. So I'm going to take one of my misprints, and I'm going to take the film positive and line that up and then tape them together.

And so now like before I can see my film positive through there, and we can find out exactly where we need to go tape that down to the board, take our rulers and tape them in place. So now that should give us perfect alignment for the next color. So when I design this I designed the red. To go underneath the black a little to give us a little of play. So we don't have to be absolutely 100% perfect with the registration, flood our screen, push flood the screen and swap out last one. And we have just been throwing them on the floor, letting them dry wherever they can that's.

Cool. I have 50 signed copies of these on my website for sale, it's, first-come first-served. Once they are gone. They are gone, and we're never going to reprint them. Patreon's members. You should have already received a. Message for first dibs and a discount for being awesome.

This is a ruler with a fraction to decimal conversion. Plus the bottom has a fraction decimal millimeter chart. This is really handy.

This is something I need in my shop also I'm, really looking forward to the metric versus imperial argument in the comments, stop picking fights and make something why did I make this video because I have a couple of furniture projects in the future with that I want to incorporate screen printing. For example, I. Could make a credenza and on the front of those doors have a very colorful pattern printed on top of that, plus some other cool fun ideas and I want to get into some fine art that's going to involve screen printing, I hope, you got some inspiration out of this to think outside the box and make your projects a little more creative I'm, trying to take all the new things that I'm learning this year, acrylic painting screen, printing, metalworking, blacksmithing and combining all of that into my. Woodworking projects I want to take this channel to the next level to encourage you to keep learning and experimenting, I, borrowed about a dozen books from my library and picked out my two favorites that I actually ended up buying. If you want to get into DIY screen printing at home. You need this book. It is a step-by-step super easy to read great photos, great for printing t-shirts, posters and whatever else very good.

If you want to take it to the next level, this book takes it a step further into. Mixing inks, layering some really cool creative fun experimental processes. So these are the two books that I highly recommend you check out. Basically what we did today came directly from this book. I want to talk quickly about printing t-shirts. The process is basically the same, except you're going to have some different materials. This is a 230 mesh screen and that's a very high mesh count that gives you great resolution.

If you think of it as pixels screen, printing t-shirts uses a lower mesh screen to. Allow more ink to go through because textiles and t-shirts need a thicker layer of ink than paper. We used acrylic ink. If you want to get into printing t-shirts, you require a fabric ink.

Instead, in t-shirts, each time you print a label you need to flash it with heat to set that ink into the fabric, otherwise it's going to wash out. And that allows you to move on to the next color as well. You're also going to want a t-shirt press that allows you put a t-shirt over a board and then has multiple screens in. A carousel to allow you to print all the different colors registration and printing t-shirts is far more critical, especially if you want to get into it as a business, I have absolutely no desire to get into print, my own t-shirt. All the t-shirts that I saw on my website are printed right here in Toledo Ohio by a company called Joop. They are friends of mine, and they also print t-shirts for a couple other YouTubers as well.

You can keep reusing these screens you'll probably get thousands of prints. Out of them, or you can reclaim them with an emulsion remover, and it takes about 10-15 minutes to remove that emulsion. And then you can expose your new design on there. If you do buy one of the prints for me, and you make a frame for it, please tag me in your Twitter or Instagram I'd love to see how you hang it up in your shop.

Alright, folks. We will see you next week with a new project as always be safe, have fun, stay passionate and make something.


Dated : 09-May-2022

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