How to Fix Colour Bleed Stains in Laundry

Quick answer: To fix colour bleed stains in laundry, keep the load wet, remove the garment that bled, and rewash the affected items in cold water straight away. Whites then go into a warm oxygen bleach soak, with chlorine bleach as the stronger second option on pure white cotton. Coloured garments get a cold rewash with a colour-safe oxygen bleach only. Once the stray dye has been through a hot dryer, it is usually permanent.

Why colour bleeds in the first place

Dye bleeds when it is not fully fixed to the fibre. Three things cause almost every colour run that reaches a laundry counter.

• Loose dye. Cheap or hand-dyed garments, deep reds, navies and blacks, and anything with excess surface dye left over from manufacturing. The dye was never properly bonded, so the first wash water carries it away.
• Hot water. Heat opens the fibre and loosens dye that would have stayed put in a cold wash. A garment that is colourfast at a cold temperature can bleed freely in a hot one.
• First washes. New garments shed the most dye in their first three or four washes. Hotel laundries and shirt services see this with every batch of new uniforms and new linen, which is why the hotel laundry chemicals guide treats new stock separately.

Over-long soaking makes all three worse, because the dye-laden water sits against the other garments for longer. Over-dosing the detergent does not help either; the guide to laundry chemical dosing explains why.

What to do immediately

The single most important rule: do not dry anything. Wet stray dye is sitting on the surface of the fibre; dried or heat-set stray dye is inside it.

1. Stop the dryer if the load has already gone in, and pull everything out wet.
2. Find and remove the culprit. The garment that bled will usually look fine; the tint is on everything else. Set it aside to be washed alone.
3. Sort the tinted items into whites and colours. They need different treatment from here.
4. Rewash in cold water at once, with the normal dose of detergent and no softener. A surprising amount of fresh stray dye comes out in this one cold wash.
5. Check while still wet. Anything still tinted goes to the next step. Anything clear can be dried normally.

Removing colour run from whites with oxygen bleach

For white cotton, polycotton and most white synthetics, a colour-safe oxygen bleach is the first treatment. Dissolve it in warm water at the dose on the product chart, submerge the tinted items fully, and leave them to soak. The oxygen released breaks down the stray dye without attacking the fibre. Agitate or turn the items a few times, then check; stubborn tints can take several hours. Follow the soak with a normal warm wash and inspect while wet.

If a pink or grey cast remains on pure white cotton or polycotton, the stronger second option is a chlorine bleach wash at the dose on the chart. Chlorine bleach is only for true whites with no elastane, wool, silk or nylon content and no coloured trim, and it must be rinsed thoroughly. The two bleaches are compared in the guide to laundry chemical names and uses.

Colour-safe handling for coloured garments

A coloured garment that has picked up someone else's dye cannot be bleached with chlorine, because the chlorine will take its own colour with the stray colour. The route is slower and the ceiling is lower.

1. Test a hidden seam with the diluted oxygen bleach solution and wait a few minutes. If the garment's own dye moves, stop.
2. Soak in a cold or barely warm oxygen bleach solution at the colour-safe dose on the chart, turning the garment occasionally.
3. Rewash cold with detergent only, and check while wet.
4. Repeat the soak once if improvement is visible. If the second soak does nothing, the stray dye has bonded and further soaking only tires the garment.

Pale pastels and whites with a coloured print sit between the two cases. Treat them as coloured garments and accept that a faint cast may remain.

When to use a colour fixative on future washes

A colour fixative is not a stain remover. It is added to the rinse of the garment that bled so that it stops bleeding in future washes, by binding the remaining loose dye to the fibre. Use it in the first few washes of new dark or bright garments, on any garment that has bled once, and routinely on new batches of coloured uniforms and linen. Never use it on a garment that is currently carrying stray dye, because it will fix that dye in place as well. Wash the run out first, then start the fixative on the next wash of the culprit.

The same logic applies at home scale: the Hinglish guide to removing stains from clothes walks through the cold-wash-first rule for a domestic reader.

When it cannot be fixed

Be straight with the customer when the odds are poor. A colour run is usually permanent when the load has been through a hot dryer or pressed before anyone noticed; when the affected garment is wool, silk or a delicate blend that cannot take an oxygen soak and can only be given a gentle wet cleaning cycle; when the garment's own dye is as loose as the stray dye, so any treatment that lifts one lifts both; or when two oxygen soaks have produced no visible change. At that point the choices are to live with the tint, to have a white garment professionally re-whitened, or to dye the whole garment a darker colour. None of those are laundry jobs, and saying so early is better than returning a weakened garment after a week of trying.

Stocking the shelf

Two products handle almost every colour run: an oxygen bleach for the rescue and a colour fixative to stop it happening again. Chlorine bleach is the stronger backstop for white cotton. All three are on the Purolix Wash and Rinse page, with prices published per litre, GST extra, and each ships with its dosing chart for soaks and washes. If a run is not responding and you are not sure whether to go further, send a photo of the garment and its label through the contact page before the next treatment and we will tell you whether it is worth another soak.