This happens when the bleach reacts with the fabric and is especially likely to happen if used on white synthetic fibers like nylon, microfibers, or polyester.

Bleached my shirt turned yellow. Add lemon juice step 4: Web prevent whites from turning yellow. Web if you’re using bleach on your clothing, it can cause yellowing if overused (or if it isn’t used properly).

The chemical reaction between the bleach and the polyester almost always yields a yellowed result. Using chlorine bleach on yellow fabrics will break down the fabric’s fibers, leading to discoloration, fading, and reduction in the fabric’s softness. The darker colors can transfer some of their dye to the white shirts.

Or even if you are using bleach, your shoes can turn yellow. Never bleach white clothing that is polyester or a polyester/cotton blend. Heat will set bleach yellowing in the fibers permanently, and then you won't have to worry about getting those stains out

Web reaction with other clothing items. Web white clothes turn yellow due to sweat mixing with deodorants, too much bleach, improper washing and rinsing, and poor storage. Web if any part of the bleached areas turned yellow, spray them with some hydrogen peroxide and stick the shirt under your heat press plate.

Don’t close the heat press all the way down when you do this. Web dip a clean piece of washcloth in the bowl and blot the yellow stain with it. My son's shirt is pure white now!

Web ammonia may help to lighten or fade yellow bleach damage on clothing or upholstery. Another possible cause of yellowing white shirts is a reaction to other clothing items in your wash load. However, if you are out of bleach or want to try some different methods, here are 10 ways you can whiten yellowed clothes.