Ring around the collar and other perspiration stains can occur regularly. They are nearly unavoidable--unless you don't sweat at all. The stains happen when sweat and body oils are absorbed into the fabric's fibres. Most people just throw the stained laundry away, especially if dry cleaning or normal laundering fails to remove the stains. Learning how to effectively remove ring around the collar and perspiration stains from your clothing can help you salvage your wardrobe.
Apply the hand degreaser directly to the ring or perspiration mark. Automotive-grade hand degreaser is strong enough to tackle the toughest of oil-based stains, like those from motor oil. Scrub the area with the toothbrush, working the degreaser into the stain. If the manufacturer has included special instructions for using the degreaser with laundry, like diluting it, follow these instructions and then use the toothbrush to work the product into the fabric.
Turn on your washing machine and set it to a cold temperature. Set the washing machine on the cycle that is appropriate for the type of fabric.
Add your washing powder and the oxygen-based laundry aid, following the manufacturer's instructions.
Add your treated clothing to the water and allow it to agitate about five minutes.
Turn off the washing machine and allow the clothes to soak for about 24 hours. Turn the washing machine back on to continue the cycle. Air dry or place the clothes into the dryer and dry as you normally would.
You may need to repeat the whole process a few times, especially if the ring around the collar or perspiration stain is old or set into the fabric.
Check for colour fastness in an inconspicuous area before treating the stain.