Illustrative situation
A brand’s hoodie has a white body and a deep red hood lining. After the first wash, the white fabric has a pink cast next to the red. The buyer needs to know whether this was predictable and how to avoid it.
Main answer
Dye bleeds when dye that is not firmly fixed leaves a dark or strong colour in wet washing and is taken up by an adjacent lighter fabric. Deep reds, blacks and navies are the usual culprits, and white or pale panels next to them are the usual victims. Test staining in washing on the finished combination and avoid risky colour pairs unless the test passes.
Why it happens
In water, some dye can desorb from a dyed fabric, especially with strong shades. If it meets a pale fabric, it can stain it, and heat, long soaking and alkaline detergent make this more likely. In a garment with contrast panels, the dark and light fabrics are sewn together, so the contact is permanent and wet. The first washes are the riskiest.
Which designs carry the most risk
Strong red, black, navy and some bright colours next to white, cream or pastel. Striped or colour-block garments, and trims, drawcords and linings sewn against light fabric. Garments washed in warm water or left damp. Pieces dyed with a dye system that is not well washed off.
How to test staining
ISO 105-C06 assesses both colour change of the sample and staining of adjacent multifibre fabric under defined washing conditions, and AATCC TM61 provides accelerated laundering tests. Ask for the staining grade on the finished garment or on the fabric pair, and ask what staining grade is accepted. A simple home check is to wash a small piece of the dark fabric stitched to a white piece and look for transfer.
How to design around it
Pre-wash or specify a thorough wash-off for dark panels, choose dyes with better fastness, or select a lower-risk colour pair. Add a care instruction to wash dark and light colours separately and in cold water. If a pair fails, swap the colour or separate it with a barrier trim. See options on contrast stitch hoodies and hoodies.
Fact, recommendation, uncertainty
- Established fact
- ISO 105-C06 rates both colour change and staining of adjacent fabric after laundering under defined conditions.
- Recommendation
- Test the real colour pair for staining, pre-wash dark components and give care instructions that separate dark and light.
- Uncertainty
- Bleeding risk depends on dye batch and processing, so a pass on one lot does not guarantee the next.
Sources and further reading
- ISO 105-C06:2010 — Colour fastness to domestic and commercial laundering
- AATCC TM61 — Colorfastness to Laundering: Accelerated
Sources checked on 24 October 2026. Standards bodies sell the full texts; we cite what their public pages state. General information, not legal or technical certification advice.
More perspectives from the team
Three further views on the same question, each by function. They add conditions and limits to the main answer; they are editorial notes, not customer reviews.
Sino Finetex Editorial Team Sourcing
Ask suppliers for staining results for dark components used next to light ones. Limit: tests on a different fabric do not apply. Ask the factory to pre-wash dark trims and linings before sewing them next to light fabric, and to confirm it in writing.
Sino Finetex Editorial Team Product selection
Limit strong dark and white pairings in the first range unless the test passes, or use a neutral separator. Limit: a safer palette may be less eye-catching. Choose a mid-tone separator between a strong dark and white, so any slight transfer is less visible.
Sino Finetex Editorial Team Quality & care
Test every new colour combination and keep a reference sample after washing. Limit: a change of dye lot needs a new test. Wash a finished garment, not only fabric swatches, because sewing and trims change the contact.
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