Oh, the horror!
I am a Graphic Designer at a screen printing company. Every day I get artwork from people that is hard to use and hard to print. In an effort to help my screen printing brothers and sisters...some advice for those who make t-shirt graphics and those who order t-shirts:
1)
Vector artwork is good. Everything else is bad 98% of the time.
Here is an extremely brief and important introduction to screen printing graphics. If you don't understand vector art please read.
Vector artwork can be made bigger or smaller and the quality will never change. If you have a vector image it will end with .EPS, .AI or .PDF.
.JPG's, .PNG's and .GIF's are not vector. If I make them bigger they will look worse. They are jagged. I can't print them. Don't send them to me.
Why does this matter? Because I can't print the individual colors of a .JPG, .PNG, or .GIF.
I print 3 types of files...Vector, Bitmaps and Grayscale.
Bitmaps and Grayscale images aren't vector. That means I can only use them if you want to print in
ONE COLOR.
If a student drew a nice picture and you want to put it on a shirt, feel free to send me a
high quality .JPEG if you want it printed in ONE COLOR. That is the only time I want a .JPEG.
The difference between Bitmaps and Grayscale images? Bitmaps are 1 color only. Grayscale can use tints and shades of the same color. I can print a Norman Rockwell painting on a shirt in Grayscale in
one color.
2) Expand all text when sending vector art.
When I say "font" I'm talking about text. Times New Roman is a font. Comic Sans is a font. If you send me a vector file and you used a font that I don't have installed on my computer, my computer will substitute a different font. The result is a messed up graphic.
If you select your text and go to "Object" at the top of the screen and "Expand" the text is changed into shapes. That means I don't need your font anymore.
Expand your text when sending work to a screen printer.
3) Don't Use Clipping Masks.
I hate them. It's hard to change the artwork when someone has used a clipping mask. Use Pathfinder options to get rid of everything you don't need instead of using a clipping mask.
4) Don't send me .JPG, PNG., or .GIF logos.
We've already talked about vector art, but logos are special.
I often make shirts with big lists of sponsors on the back. Probably half of the logos I'm sent are .JPEGS.
Don't send me .JPG's. I can't print those. You need to call the companies who are sponsoring your event and talk to a marketer or a graphic designer. Ask them to send vector artwork.
If you don't send me vector artwork I'm going to have to remake the logo myself and I'm going to charge you more money.
Do not send logos to me unless they are .AI, .EPS or .PDF files.
5) Black and white are not interchangeable.
Changing text color is usually no big. Changing the color of a graphic can be a very big deal.
Let's say you work at a farm and you're having a shirt printed with a man riding a tractor. It looks great. You decide you want to order some black shirts, so you'll just use black ink on white shirts and white ink on black shirts.
Bad idea.
If an image was made with dark inks then print it with dark inks. Changing a black image to white makes it look strange.
Until I think of more items, we'll call this a day. Happy screen printing!