Wool and cashmere clothes contain natural fibers that are made of protein. Think of your own hair. It is also protein and you certainly don't want to use harsh chemicals on your own head! Same goes with wool.
Wool fibers will dissolve in chlorine bleach. Even dilute solutions of chlorine bleach will cause permanent yellowing, color loss, stiffening and weakening of wool. Read all stain removal product ingredients carefully and they should be tested in an inconspicuous spot like an inside seam before using. Always read hang tags and labels before attempting to remove a stain.
Professional cleaning is often recommended for wool clothes but is it necessary? Some wool clothes that are unstructured like sweaters, scarves or accessories can be handwashed. Home dry cleaning kits can be used by following all product instructions.
Extremely high temperatures when ironing wool can scorch silk or other natural hair fibers. The scorching or yellowing occurs as the fibers begin to burn. Burned fibers cannot be revived. Always select the correct iron temperature setting.
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