There are a few ways to preserve a T-shirt graphic. One way is to place the shirt in a freezer bag and then place it in the freezer. Another way is to hang the shirt in a closet that is free of moisture.
There are a few things that you can do to keep your t-shirt print from cracking. The first is to make sure that you wash your shirt inside out. This will help to keep the print from being exposed to too much friction and abrasion. You should also avoid using fabric softener, as this can also cause the print to crack. Finally, you can try a product like Screen Goo, which is designed to protect your prints from cracking and fading.
-do not iron over the printed area
-wash inside out in cold water and hang to dry
-avoid using fabric softener or bleach.