It is an infringement to print Starbucks on a T-shirt without authorization.

According to the Copyright Law of the People's Republic of China, copyright owners have the rights to copy, distribute, rent, exhibit, perform, screen, broadcast, and disseminate information through information networks for their works. If others use the copyright owner's work without authorization, it constitutes an infringement. Starbucks is a well-known brand, and its trademarks, logos, font sizes, etc. all fall within the scope of its copyright. If Starbucks trademarks, logos, font sizes, etc. are printed on T-shirts without authorization, it is an infringement.

In the market, some merchants produce and sell T-shirts with Starbucks trademarks, logos, font sizes, etc., but these merchants are often not authorized by Starbucks.