Put the stained part on absorbent paper, and treat with acetone, rub the stain from outside to inside to prevent it from spreading.
Replace the paper and repeat as many times as necessary until the paper no longer absorbs enamel. Treat with KH-7 Sin Manchas and wash as usual.
1Apply absorbent paper over stained area
2Treat with acetone
4Leave on for up to 5 minutes
5Clean the garment with the usual programme