However, once rust has appeared on a metal object, some of it can easily transfer onto other materials like fabric, cement, ...

Washable fabrics: Work from the back of the fabric ... You can try the baking soda paste; this may also work for rust stains. Or place paper towels soaked in bleach on the area for 24 hours ...

Use white rags only; chemicals that dissolve stains can also make fabric colors bleed and stain ... Oxalic acid is the ...