Here are the claims:
Vinegar helps “set” colors and prevents build-up of detergent residue, which contributes to color fading. [...] Pour ½ cup of salt in the wash cycle to prevent the dyes in colored fabrics from bleeding.
Add a tablespoon of salt to the wash, and the chloride will help our clothing pack a colorful punch when it comes out of the dryer. The reason? Chloride found in salt actually helps to seal the color in fabrics, thus keeping it from fading. [...] If you add ½ cup of white vinegar to the rinse cycle, the liquid will freshen up your laundry and help colors maintain their intensity.
Is there any evidence to support the claims?