Your beautiful new shirts are the highest of quality, but they’re not indestructible!
To get the most life out of the print, wash it inside out with like colors on Gentle Cycle, in cold water, with no bleach. Tumble dry inside out on low or no heat, or hang-to-dry whenever possible. Do not iron directly on the print.
Never use bleach, even on white shirts.
Occasionally colored fabrics, especially reds, oranges and some shades of blue may have a slight discoloration or impression in the shape of a rectangle surrounding the print area. This is from the heat curing process reacting with red fabric dyes and is considered normal. This effect is temporary and will dissipate once the items have been washed.