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Zanussi | Help and Support

Dark or brown stains on laundry after washing in washing machine

If there are brown stains on laundry after washing, refer to the suggestions below for step by step instructions.

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Hair care products can cause dark or brown stains on clothing.

  • Some products (e.g. foam mouse, shampoo) may contain an ingredient called polyquaternium copolymer, which is a fixing agent.
  • When the product comes in contact with clothing, it binds to the surface of the garment.
  • When garments are washed together with darker fabrics which continually release small quantities of dye, the “contact area” absorbs the dye that is released. As a result, the spots do not become apparent until the garments have been washed.
  • The staining is caused when splashes of hair care products get onto the clothing, or when you dry your hands on a towel without first washing off the residues of the hair care product.

The spots can never be removed completely, but white towels can be saved by removing almost all of the discoloration.

  • Towels can be bleached without being damaged by treating them as follows: 
  1. Prepare an oxalic acid solution: Add 50 – 100 grams of oxalic acid to a plastic bucket containing 10 liters of hot water (60°C). Immerse your garments in the solution for 30 min.
  2. Then thoroughly wash the garments at a minimum of 60°C using a good soap, which should contain phosphate and bleach. 

To test whether a hair care product produces spots during a wash cycle, try putting a piece of fabric in the machine and washing it using a color wash.