Summary

Margaret Smith Furry Stain Removal from Fabrics: Home Methods

But acetate rayon is different. It dissolves in acetone, alcohol, or chloroform, so test a sample of any rayon material before using these liquids to remove a stain. Mixtures of alcohol and ether, or alcohol and benzene also are unsafe to use on acetate rayon or on colored material. Always mix alcohol with 2 or 3 parts of water before using it. Pressing with a hot iron may melt acetate rayon.
Synthetic materials, such as nylon and vinyon, are not harmed by either acids or alkalies. Water does not weaken them, as it does the rayon.
Source: Gutenberg

Margaret Smith Furry Stain Removal from Fabrics: Home Methods

All bleaches will rot cotton and linen if allowed to remain on the stain for more than a minute or two and will remove the color, too. Sodium perborate and hydrogen peroxide are the safest bleaches to use.
Wool and silk
Strong acids and alkalies destroy wool or silk materials. Mild acids, except nitric, which weakens the material and turns it yellow, are safe to use. Even mild alkalies such as weak solutions of ammonia water, borax, or washing soda, must be used with care on wool. Bleaches that contain chlorine, such as ordinary bleaching powder, also destroy wool and silk.
Source: Gutenberg

Margaret Smith Furry Stain Removal from Fabrics: Home Methods

Then wash with soap and water.
Hydrogen peroxide or sodium perborate.—Remove any remaining stain by sponging with hydrogen peroxide or with sodium perborate solution (4 tablespoons to 1 pint of water) . Sponge or rinse with cold water.
Urine
These stains differ so in composition that it is impossible to give methods which will be successful in all cases. If the color of the cloth is not destroyed but only changed, it may be restored. Normal human urine is usually acid, as is also that of all meat-eating animals. Therefore sponge such stains with a weak ammonia or soda solution.
Source: Gutenberg

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