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When Overcoming Yellow Stains in Carpet Cleaning

Stains on carpet can be distressful as well as unsightly. The main point to remember about carpet stains is to treat them as soon as they happen. Waiting will only cause the stain to set in deeper in the carpet, which will make your work of removing it harder.

Yellowing/browning can be caused by many factors. Sometimes it can be removed; sometimes not. Never guarantee complete removal.

The most common factors that cause yellowing are:

  • Over-wetting or High Alkalinity: Usually caused by technician error. Over-wetting can also be caused by the jets being clogged or faulty vacuum hoses and cuffs.
  • Cellulosic Browning: The wetting of jute backing causes cellulosic browning. This is normally found in older carpeting. The popularity of sisal, hemp, mountain grass, and even paper has seen a resurgence in browning issues. Don’t forget that many woven rugs may have a cotton or jute backing yarn and can cause browning and shrinkage. Browning is also very prevalent in all types of cellulosic fabrics, such as cotton, linen, rayon, and viscose.
  • BHT in Carpet Cushion: BHT was used as an antioxidant in the manufacture of rebond cushion. When stain-resist carpet came into existence many yellowing discolorations appeared especially after cleaning. It was traced back to the cushion and pressure from the mills put an end to it. The kind of yellowing is noticeable because it is a VERY BRIGHT canary or legal pad yellow.
  • Formaldehyde: While this has been stated as a cause of browning and yellowing in carpet, it has not been used in the manufacture of carpet in over 25 years. Sometimes old information keeps being spread.

How to use stain remover using ammonia to remove yellow formation

  • Determine the type of carpet. Wool or wool-blend carpets need a different carpet cleaningtreatment than non-wool- based carpets. Make a solution of 1 tbs. ammonia to 1 cup water. Put this mixture in a clean, preferably new spray bottle. Put on your gloves, spay the solution directly on the stain and work it in with your fingers for several minutes. This mixture is for non-wool carpets

    Wool carpets do not take well to ammonia, so use a mild soap and water combination. Tackle wool carpet or wool blend with 1 tbs. of mild dish soap to 1 cup of water. Place it in a spray bottle, or apply it directly to the stain. Put on your gloves, and work the solution in with your fingers. Do not soak the carpet; you simply want to get enough on so that it is wet but not soaked.

    Scrub gently with a scrub brush in a circular motion so that you are only working on the stain and not spreading it to unstained areas. Use your paper towels, and dab up the excess liquid. When using paper towels to dab up the excess cleaning solution, lay two or three paper towels over the stain; press firmly with a downward pressure to soak up the fluid.

    Test the area to see if it has dried completely after several hours. When it is dry, vacuum the stain thoroughly, and the yellowing stain should be gone.

If all effort wont work, contact pros to do the job for you