1. Leave a margin of 5mm at both ends of the original trademark, and cut off the others. Then the new trademark is covered on it, and the nonwoven adhesive lining (with glue on one side) is placed under it and ironed with a high-temperature electric iron.

2. Put the new trademark (processed as a sleeve: two ends open) into the original reserved part, and glue it with high-strength adhesive in the middle.