I have taken to buying clothes for my kids from Vinted on the grounds that it's greener. However, I've received quite a few items now where it's clear that they haven't been colour-separated pre wash. For example, dresses with a coloured print on a (previously) white background are now a sort of muted colour on grey background. Clearly the result of not separating light colours from dark colours. It's rarely clearly from photos & it's so frustratingly easy to prevent!
Does anyone else find this? Any tips to restore the white background on patterned cotton much appreciated!