Using a cloth, dab at the stain to lift.
How to get rust stains out of vintage clothes. Add a cup of boiling water. Let it sit for a moment and then remove the excess with a spoon and/or towel. Next, place the garment under a sheet, in the sun, to dry.
The mixture will immediately bubble up and dissolve. The lemon and salt (or cream of tartar) are equal parts. Lay the garment on top of the towel in the direct.
Hold the fabric over the boiling water for a while. Let the solution sit for at least five minutes, then blot with another clean cloth. Then rinse the fabric in cold water.
And removing it from clothes is difficult. Allow the stain to soak for 30 to 60. Squeeze the lemon as needed to thoroughly saturate the stain with lemon juice.
Combine 1 teaspoon each of cream of tartar and baking soda with a few. Pour on a small amount of dish soap on the affected area. If for colors, use without sun at first as it can lighten fabrics.
Both chlorine bleach and heat will set rust stains. Watch out for rusty pipes that could drip on stored clothes. Use baking soda and hot water to.