Removing stains from a sweater requires choosing the appropriate method based on the type of stain and the sweater's material. Incorrect methods may damage the fibers, cause shrinkage, or discoloration. Here are some scientific removal solutions for common stains:
Treatment by Stain Type
Oil Stains (such as vegetable oil, hair oil)
Immediate Treatment: Gently press with a paper towel to absorb the surface oil, avoiding wiping to prevent spreading.
Household Cleaning Methods:
Dishwashing Liquid Application: Apply dishwashing liquid directly to the oil stain, let it sit for 20 minutes, gently rub, and then rinse with water.
Flour Paste Absorption Method: Mix dishwashing liquid into a paste, apply it to both sides of the oil stain, let it dry, and then peel off the outer layer; the oil stain will be removed.
Baking Soda/Baby Powder: Sprinkle on the oil stain, let it sit for several hours to absorb the grease, then brush it off.
Ink Stains (Black Ink, Blue-Black Ink)
Fresh Ink Stains:
Alcohol Wiping: Wipe with a cotton ball soaked in medical alcohol from the outside in to prevent spreading.
Toothpaste Rubbing: Apply white toothpaste and gently brush with a soft-bristled toothbrush, then rinse with water.
Old Ink Stains:
Mixed Stain Remover: Gently wipe with a 1:1 mixture of alcohol and white vinegar, then press with an absorbent cloth.
Rice Washing Method: The starch in rice can absorb the pigment. After repeated rubbing, wash with detergent.
