Even if you carefully follow all the rules on keeping white clothes white, they can still become yellowed over time.
What Causes Yellowing Of White Clothes?
Environmental factors like the nicotine from cigarette smoke or greasy cooking residue can cause fabrics to yellow. Underarm yellowing on shirts happens due to a reaction between your anti-perspirant and body salts. Yellowing quite often occurs on clothes that are stored improperly and react with the acids in a cardboard box or wooden shelves.
Chlorine bleach is great for cleaning and disinfecting but it can cause yellowing if overused or if used on white synthetic fibers like nylon, microfibers or polyester. The bleach weakens the fibers and returns the synthetic polymers back to their original color - yellow.
Even white fabrics made from natural fibers like cotton and linen can turn yellow if they are exposed to too much chlorine bleach. Excess use of bleach can also cause white clothes to yellow when hung in the sun to dry because the sun adds another layer of bleaching due to ultra-violet rays.
And, if you are using too much detergent, fabric softener or bleach and not rinsing well, the high heat of the clothes dryer can "bake" the residue into the fibers and leave them grey or yellow.
So what to do?
How to Whiten Yellowed Clothes and Linens
The first step to whiten washable clothes is to mix a solution of warm water and oxygen-based bleach (OxiClean, Clorox 2, Country Save Bleach, Purex 2 Color Safe Bleach).
Follow the package recommendations as to how much to use per gallon of water. Submerge the white garments and allow them to soak at least eight hours or overnight. Then wash as usual using the hottest water recommended for the fabric, adding 1/2 cup distilled white vinegar to the rinse water.
This process is safe to use on polyester and all man-made fibers as well as natural fibers like cotton and linen. Do not use on silk, wool or leather - including any trim or embellishments made from those materials.
You can also add an old-fashioned laundry product, laundry bluing, to the wash or rinse water to make white clothes appear brighter. Just follow the directions on the bottle.
Commercial Color Remover
If neither oxygen-based bleach or bluing gets your clothing white enough, you can use a commercial color remover to strip away any color from the clothing. It should not be used if there is colored trim or decorations on your clothing.
Shop for Color Remover on Amazon.com
Use the Sun
If possible, dry the clothing outside in the sun. The ultraviolet rays of sunlight will help to whiten the clothes.
Chlorine bleach can be used on cotton fabrics that have yellowed due to storage issues. Always follow product directions and don't over use. If you can detect a chlorine odor as you remove wet laundry from the washer, you are using too much bleach. Cut back on the amount used and add a second rinse to remove as much of the residue as possible.
Nothing Worked and the Clothes Still Aren't White
As a last resort, if you love the clothing and can't get the yellow out, consider dyeing the fabric another color. Today's dyes are more color-fast than those of years past. You should be able to enjoy the garment for many more wearings.
How to Store White Clothes To Prevent Yellowing
The first thing to do is to make sure the white garments or linens are completely clean and stain free by laundering or dry-cleaning each piece. If you are not sure if the item is clean, it's worth the effort to wash it just to be safe. Be certain that pieces are completely dry before packing away.
It is important to use the right type of storage container to prevent yellowing. One choice is to use storage boxes sold for archival storage. These are usually made of acid-free paper and are perfectly safe to use.
However, if you are concerned about the box getting crushed or the expense, purchase a plastic storage box. The box must be made of cast polypropylene to be safe for your keepsakes. Look for the #5 within the recycling triangle or the letters “PP” to be sure that you have the correct type of plastic that will not emit damaging chemicals.
You will also need to purchase white archival tissue paper. It must be both acid free and lignin – a chemical compound derived from wood - free.
Wash and dry your hands before handling the item because lotion or creams can discolor white items. clothing.
Choose a cool, dry space for storage. Avoid extreme temperatures areas like attics, basements and garages. The ideal spot is an interior space away from exterior walls and pipes that might burst; like under a bed.
We, Shanghai Doublegull Textile Co., Ltd. has focused on top quality woven interlining & bedding fabrics products for over 30 years in China. We started as a small operation, but now have become one of the leading suppliers in the interlining industry & home textile industry in China.
Today, DOUBLEGULL has been one of the top producers of quality woven interlining, bedding fabrics and bedding sets products, such as:shirt interlining, outerwear interlining, casual wear interlining, waistband interlining, cap interlining, Arabian thobe interlining, bedding fabrics and bedding sets.
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