My next instructable would be about creating a 2 tone stencil, but this one's about printing.
Step 1: Materials
1. 2 layers stencil - you can buy some designs in a store, or you can make it yourself. I made mine out of Velum cut with a craft knife - it's good material, easy to clean and easy to cut.
2. Spray adhesive - I used Blair 82490Blair 82490 cause it's what I had, but if you are buying this to print t-shirts get one that a little less tacky and isn't permanent.
3. Discharge paste (optional) Discharge paste is bleach in a paste that takes off some of the dye of the fabric, I love printing with it cause it never comes of in the laundry or create a crust on the shirt. However, because it takes dye off, it can only used on non white fabric. If you are printing a white T shirt, you don't need this and can use 2 colors of paint instead.
I use Dharma discharge pasteDharma discharge paste and I'm really happy with it
4. Fabric painting medium - this is basically a glue that make sure that paint stick to fabric. I use Golden GAC 900Golden GAC 900 and I get good results with it.
5. Acrilic paints in colors of your choice
6. a plate or a small container to mix paint in.
7. T shirt (or shirts, dresses, skirts - whatever you want to print on)
8. An iron with a steam option (you will use both steam and non steam option for this.
Step 2: Places please...
Before you print on the shirt, it is very very important to wash them - I skipped this in the past and it sucked! cotton shrink about 3% after the first wash, so if your shirt hasn't been washed before, it'll shrink a bit in the first laundry and they print will look all thick and would be itchy to wear. Also some cloth factories, put some chemical on the shirts to make them stay wrinkle free and that might make the paint not stick properly (I actually don't know if that's true, it never happened to me and might just be an urbal legend) but do wash and dry your shirts before printing on them.
And now we are ready to begin.
Put a sheet of paper or cardboard inside the t-shirt to prevent the back side of the t shirt from staining.
Spray the back side of the stencil with the spray adhesive, you don't need a lot of it, just a little bit to keep the stencil in place, from my experience - the least the better, even a tiny layer all over the stencil is enough.
Place the stencil where you want to print - since the adhesive is not permanent you can remove it and put it on again as many times as you need to place it, the spray say tacky for long enough to play around.
Step 3: Ready - Set - Discharge!
pour some of the discharge paste (it's a little sticky, but not so bad) on a plate and tap the stencil brush in the paste. Tap a few times on the plate to get and even spread on the brush and then tap the paste on the shirt where the stencil is.
This is not like brushing paint - you hold the brush straight and just tap tap tap till the whole area os covered with paste. Get a thick layer on.
At this stage you won't see anything on the shirt, or just see wetness where the paste is (don't worry, it's not supposed to work just yet.
after you are done - take off the stencil and leave to dry completely, depends on the fabric and the weather, this takes about an hour. (it is recommended, but not mandatory to go out for Mexican food at this stage).
After the shirt is dry, you would not see anything on it, the design just seem to disappear (it's still there, don't worry).
Step 4: See Ya
The discharge paste react differently to different fabrics, cotton t-shirts are usually wonderful for this, but with other fabrics, it doesn't always work as well (or at all) I tried a wool skirt and got a very subtle result. Also, the color of the area that was bleached tend to have different colors on different color shirts, I love the way black discolor to a vague yellow-white, a light blue shirt got perfect white and the Red one got an orange yellow.
Very Very important!!! - I half ruined a shirt that way a few weeks ago. After you finished this and before you go on printing the second layer, you have to wash the shirt to get rid of access discharge paste if you don't do this the next layer of paint will just wash off in the first laundry.
Step 5: Mixin' it
First of all, you need to mix the paint.
The instruction on the bottle of the fabric medium say to mix the medium and the paint in a 1:1 ratio. I found out that this lead to the paint being too watery and then I don't get lines as crisp as I want them to be, so I 1:2 ration of medium and paint.
Pour them onto the plate and mix together with a stick or the other side of a brush to even consistency - should be the same thickness as honey or cream cheese.
If oyu don't have the exact color you want, you can also mix different colors together with the medium.
Just notice that all the different colors mixed and that there aren't any lumps that would stain your print.
Step 6: No paint no gain
Make the layer of paint as even and as light as possible, if you are stenciling a dark tshirt with a light color and need better cover then do it 2 or 3 layers of thin paint rather then in one thick layer. When the paint is heavy on the shirt it's less comfortable to wear and doesn't look as good.
After the whole area is covered leave to dry for a couple of minutes and then peal the stencil off, to reveal the design.
Hang to dry (between 20-40 minutes, until dry to touch) you don't have to wash the paint before starting the next layer of paint.
Notice that the acrylic paint usually dry a shade darker then it looks when it's still wet so take that into consideration when choosing and mixing paints.
Step 7: Second act
Basically, it's the same deal - spray the adhesive on the back side of the stencil and place it on the shirt (it's a little more difficult cause you need to be accurate, it helps a lot of the stencil is see through.
Then mix paint as you did before (1 medium to 2 acrylic paint) and use the stencil brush to tap a thin layer of paint on the shirt where the stencil is. leave to dry for a couple of minutes and peal off the stencil.
If, like me you are working on more then one shirt (I printed 8 of them and one skirt!) then leave the stencil to dry or better yet - wash and dry it between prints - this is good for 2 reasons: if there's wet paint on the stencil it might stick to your shirt and make the print dirty. Also, if you are using a transparent stencil - it's easier to get the registration right if you can see the first layer under the second layer stencil.
Step 8: Iron fist
Step 9: Ready to wear
Your shirt is ready, you can wear it, sell it, give it to friends promote concerts or do whatever you want with it.
It's a great way to make cloth that you are bored with interesting again or just have something cool no one else has.
It might look complicated from the tutorial, but with a bit of practice, it's a fun no hassle project. I printed 9 items it took me about 5 hours with the wait for the shirts to dry and everything, I used this method to make 2 birthday present to people who loved them before.