Crocking (dye transfer)
Also: dye transfer · color rub-off · dye crocking
Crocking is the rubbing-off of dye from one fabric onto another or onto skin, typical of raw denim, dark dyes, and cheaply finished garments. It shows as color transfer at pockets, cuffs, and collars, and because it signals unstable dye it lowers both cosmetic and fabric-condition grades.
Crocking cannot be reversed: the dye has already gone
Short answer: it does not come out. Everything below is about what to do instead. We would rather tell you that in the first line than sell you an afternoon of scrubbing.
- 1Nothing brings it back. Crocking is unfixed dye rubbing off onto something else, so the damage is a loss from the garment, not a deposit on it.
- 2Washing a crocking garment removes the loose surface dye, which stops it marking other things but leaves the faded look.
- 3The dye it deposited on other garments is a separate problem: treat that as a colour-bleed stain, quickly, before it sets.
Stopping it happening again
Wash new dark denim and anything raw or overdyed on its own, cold, inside out, before the first wear. A cup of white vinegar in the first wash is folklore for setting dye and does very little; washing separately does the work.
How to spot it
- Rub a damp white cloth firmly across a dark panel and check for color pickup
- Inspect where dark fabric meets light — waistbands, pocket bags, inner cuffs
- Look for blue or black tinting on the garment's own lighter contrast areas
Grade impact
Crocking is weighed under Cosmetic Appearance (20%) and Fabric Condition (30%). Minor dry rub on raw denim is expected and stays near Very Good (7); heavy transfer that stains adjacent panels or won't stop after washes pushes toward Fair (5).
Fixability
Partly manageable, not curable. Repeated cold washes with a dye fixative or vinegar rinse reduce loose surface dye, but the tendency stays. It's a property of the dye, so it can be lessened, never fully removed.
How to disclose it
Warn buyers explicitly ('raw denim, will crock onto light surfaces until washed'). Crocking that ruins a buyer's couch or shirt is a classic dispute, and the warning shifts responsibility fairly.
Crocking — frequently asked
- Is crocking the same as color bleeding?
- No. Crocking is dry dye rubbing off from friction onto skin or fabric, while color bleeding is dye running out into water during a wash. Both come from unstable dye, but crocking happens dry and bleeding happens wet.
It is staying, so the question is what it costs
Crocking is permanent, which means the garment is worth what a garment with crocking is worth. That is a smaller number than the same piece without it, and it is not zero. The gap between those two numbers is what a condition grade measures.
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