Things You'll Need
Heavy-duty laundry detergent
Vaseline petroleum jelly is a handy product that softens and moistens skin and, in a pinch, can even grease a squeaky or stiff mechanism. When petroleum jelly gets on nylon synthetic clothing the grease from the product quickly soaks into the fibers of the fabric. Tend to a Vaseline petroleum jelly stain in your nylon synthetic clothing as soon as possible after the stain occurs in order to have the quickest stain removal process.
Cover the Vaseline-stained area of the nylon synthetic clothing with baking soda. Let the baking soda sit on the greasy stain for 15 minutes to absorb as much of the grease as possible. Leave the baking soda on the stain overnight for larger grease stains.
Brush the baking soda off of the nylon clothing and into a garbage can. Flush the petroleum jelly stain with hot water for two to three minutes. Wear rubber gloves to protect your hands from the heat.
Squirt a quarter-sized amount of dish soap onto the remnants of the Vaseline petroleum jelly stain. Rub the detergent into the site of the Vaseline stain and allow it to sit for at least 30 minutes. The dish soap breaks down the grease in the petroleum jelly stain much in the same way it breaks up the grease on dishes.
Launder your nylon synthetic clothing using the hottest water possible, according to the care label. Check to make sure the petroleum jelly stain is completely gone before placing the clothing in the dryer.
Old, set-in grease stains may need to be treated twice or more before the stain disappears.
Substitute cornstarch or talcum powder for the baking soda to absorb some of the grease from the stain.