White Crease Marks On Dark Washing

[wrayperson]

Sometimes I get white crease marks ( colour seems to have been removed) when washing dark blue or black items, even new items,... what are these marks & how do I stop them appearing?

[KARL]

Very likely they are a light gathering of solids from the wash water that are trapped/strained in folds - the matter will mostly be fibres and skin flakes. They usually dust off once the fabric is dry.

[wrayperson]

Thanks for reply Karl, the marks do not dust off, they remain as white lines on the fabric.

[Vagus]

Apparently (I just googled) it could be something to do with the temperature you wash them at, and the spin speed. Try a much cooler temp and a much lower spin speed. It’s nothing to do with the washing powder or liquid you use, although some people only use a gentle one like Woolite.
Worth a try maybe?

[Mamyalynne]

Washing dark items inside out helps too.