I am a student trying to learn about how OXO made this cup.
Here are some constraints that I know: I figured out that the text on the outside can be made using screen printing, but then I don't think you can use that same tech to print on the inside since it's so tight. I know this is a high volume part so the process has to be scalable. It's also got to be low cost because the total price is under $8. The text also needs to be able to stay on for 10+ years after contact with various fluids since OXO promises durability. Lastly, the material being printed on is Tritan, a food safe plastic material.
Here is the product: https://www.oxo.com/1-cup-angled-measuring-cup-451.html#