• Do not mix with items whose colours may "bleed".
• Do not soak gowns in bleach, even diluted.
• For blood: immerse in cold water with a few drops of ammonia then wash normally.
• For ink: stamp with 90° alcohol.
• For the resin: rub with turpentine.

specifically

HYPOCHLORITE: Forms a network of small holes or spots in the fabric, even if immediately wetted with water.

Follow the washing instructions on the labels of each of your items.