For best results and longevity please wash as followed:
Please use a detergent that's recommended for delicate fabrics. Use liquid where possible. I personally use Morrisons eco non bio liquid.
Wash darks, colours/brights and whites separately.
Turn inside out and avoid washing with denim and towels. If items have zips, wash with them done up.
Wash at 30 degrees, on a gentle low spin.
Do not use bleach or stain removers. If a stain needs treating use a spot treatment method with a stain bar or washing up liquid. Wash immediately.
Do not tumble dry, radiator on low, air dry is best. Iron inside out on low if needed.