THE SHORT ANSWER
Place a clean white cloth beneath the mark. Blot; do not rub or spread the ink.
Why denim changes the answer
Indigo-dyed denim can lose colour under forceful treatment. A gentle first move is more sensible than vigorous scrubbing. Different pen inks behave differently; some cannot be completely removed.
A careful step-by-step approach
- 1
Support and blot
Place a clean white absorbent cloth beneath the stain; blot the top without rubbing. Keep moving to a clean area of the cloth.
- 2
Consider a cautious spot treatment
Only if the care label allows: test rubbing alcohol on a concealed seam for colour loss, then dab a little through the back onto absorbent towels. Ventilate and keep away from flames. If colour transfers, stop.
- 3
Launder, then inspect
Wash using the garment’s care label and the cleaner’s instructions. Turn inside out for washing if the label permits, to help reduce visible fading. Check the mark before drying; repeat a compatible treatment if needed. Air-dry until it is gone.
What not to do
- Do not tumble-dry or iron before checking that the stain is gone.
- Do not mix bleach with vinegar, ammonia or other cleaning products.
- Do not skip a hidden-area colourfastness test when using a cleaner.
What if it already dried?
Solvents can affect dyes, coatings and some synthetics. Test cautiously or use professional care. A dried stain can require different handling and may be less responsive to treatment. Our tool generates a separate plan that accounts for timing while preserving the same material safeguards.
Sources and care guidance
These directions are a conservative synthesis of published care resources—not a claim that we have tested this item. The item's actual care label and maker directions take priority.
- American Cleaning Institute: Stain Removal Guide — garment treatment and drying precautions
- GINETEX: ISO 3758:2023 care-label symbols explained
- CDC: Cleaning-chemical safety — do not combine cleaners