Just a quick question. I'm working on a couple of shirt designs, and I want the print to be single colour. However, There are some elements, mainly letters on top of shapes, that I don't know how to make them transparent. For example on a poster this wouldn't matter because it's all the same paper, but on a shirt it's of course different to have a white screen print instead of the white texture of the shirt. I hope you understand. I've attached a screenshot where I've moved a part of the design outside the artboard so you can see what I mean. So I want to turn those text elements into text shaped cutouts on the boxes.
Click Window → Transparency, to bring up the Transparency panel.
Select the text, and cut it (Ctrl+X).
Select the blue box.
Double-click the mask box in the Transparency panel.
Paste in Place (Ctrl+Shift+V).
Uncheck the "clip" option
Click on the blue box square in the Transparency Panel to stop editing the opacity mask.
Are the texts outlined or expanded? If it is expanded you/printer can cut through the blue boxes or the white text will have it shapes embedded with the blue, and then they can print only the blue plate.
Take time to study the difference of outlined/expanded and not expanded/editable white texts through the screenshot provided.
I have two set of rectangle with text here for example. The upper group is not outlined, or it is still editable while the lower one is expanded.
It looks like the same, right, but they are different. You can see it clearly if you are in outline view. Press Ctrl+Y or Go to Outline view. Here you can see the upper part is solid black or currently as text and the lower part have outline shapes
To achieve the transparent texts you must use patfinder options.(for this example I use divide. You can also use other option like minus front (given the white text is in front))