The removal of this text and picture is really not easy; if it is easy to remove, its advertising effect will be greatly reduced. It really needs to be removed, but it also needs to be based on the situation. One is that the cloth itself is watermarked, or it is printed and dyed in batches, which cannot be removed; some are silk-printed, if the material is plain weave, pearl, etc., even the ordinary ink used, washed with alcohol, gasoline, etc. It will still leave marks because the ink has penetrated into the fabric. Some materials are relatively smooth, and the printing ink is completely protruding out of the fabric, so gasoline or alcohol can be used to remove it, but it may damage the fabric and leave marks; the other is embroidery, and you have to use needles and scissors to slowly remove it. Pick it to remove it, but there will still be stitches on the fabric.
Therefore, try not to consider the issue of removal. And the text or pattern on the sweatshirt will be more distinctive.