Why do white school uniforms turn yellow after washing a few times, and dark pants change color afte

1.Use aged vinegar to wash the stained area.

2.Try a chemical called color bleaching, such as white cat bleaching.

3.After diluting with 84 disinfectant, try to soak it a little, but be sure to master the dilution ratio and soaking time, this is related to the place where the dyed clothes are dyed and the degree of dyeing, it is best to float a few more times, rather troublesome, than overblow.

4.Wash with Amway.

5.Potassium permanganate and acetic acid, the practice is to dissolve a little potassium permanganate in water first, and then put the clothes to be rinsed in, to be fully soaked, after soaking for 10 to 20 minutes, the clothes will be dark red, pick up the clothes, wash the water; Then dissolve a little acetic acid in water, and put the clothes soaked in potassium permanganate into the acetic acid solution, the clothes will slowly change from dark red to the original color, and the dyed places will also fade away without damaging the original color of the clothes. Sometimes you can also use this method when wearing yellowed clothes.

6.Add laundry detergent and dish soap containing anionic surfactants 1:1 to warm water, soak the dyed area in warm water for more than half an hour, and then scrub it with your hands.

If it is still not clean, put all the clothes in water above 50 degrees, add a small amount of laundry detergent to scrub, and use the fading of the clothes to reduce the color difference of the dyeing.

7.Wet the stained area with water. Fill with salt. Then rub gently with your hands repeatedly. The dyed color is gone. Then wash with water.

8.Place the stained laundry in a basin with hot water and add 10 tablespoons of baking soda per litre of water. Cover your clothes with laurel leaves, leave them overnight, and wash them the next morning, and you'll find them white again.

Note: Bleaching bleached clothes is not good for the body, bleaching is the use of chemical special tin compounds, is a strong chlorine product, and the clothes will burn out if they are not mastered well. Some are bleached with potassium permanganate, and then bleached by strong oxidation of hydrogen peroxide, and if not white, some are also added with fluorescent brighteners.

These are very bad for the human body.

Clothes will turn yellow, most likely because the fluorescent agent will become weaker, if you want the clothes to be white and bright again, you have to think about it.

1. Washing rice water Orange peel is simple and effective: After keeping the rice washing water or putting the orange peel into a pot and adding water to boil, soak the yellowed clothes in it and scrub them to easily restore the whiteness of the clothes. Not only is it simple, but it is not like the fluorescent brightener sold on the market will produce *** and will not hurt the clothing, which is a good way to try;

2. Yellow stains caused by sweating, remove with ammonia: sweat stains caused by sweating, because sweat containing fat, is easy to condense in the cloth fiber, so add about 2 tablespoons of ammonia when washing, soak for a few minutes, scrub it, and then wash it with water, and treat it according to the general laundry procedure, you can remove the yellow sweat stains!

Hello, yellowing of clothes is a color stain problem, which is difficult to remove with conventional detergents, and the treatment methods of different materials and colors are different, which requires skills.

Here's how to remove yellow stains from clothes:

1. Use Blue Moon Bright White Brightening Laundry Detergent for regular machine washing or hand washing.

For example, the yellowing of clothing does not improve.

2. "Color stain soaking method" soaking.

Pour a small amount of water (about liters) into the basin, measure the color stains of colored clothes (600g specification) bottle caps with blue moonlight colored clothes (600g specification), add each cap of colored clothes stains and collar (60g each) to the water, stir well. Soak in clothes overnight and rinse well.

The amount of water should be so that the clothes are just wet, and the net amount of colored clothes and collars should be increased or decreased accordingly according to the amount of water. If the stain is still not removed after soaking overnight, you can continue to soak for an extended time.

Precautions: Colored clothes are not suitable for fading clothes and dry cleaning, avoid touching metal buttons, zippers, metal ornaments, etc. on the clothes when using, and avoid direct sunlight.

Tools: orange peel, rice water, pot.

Here's how:

1. Put an appropriate amount of orange peel in a basin and add rice water.

2. Hit **, put the pot on the fire and boil until boiling.

3. Let the boiled orange peel rice water stand to change the temperature.

4. Soak the clothes in water and scrub them repeatedly.

5. Then put in clean water to wash.

6. When the yellow stains are almost washed, wring them out and let them dry.

(1) Clothes will turn yellow, most likely caused by the weakening of fluorescent agents, if you want to restore the clothes to white and bright, you have to think about it. Washing rice water + orange peel is simple and effective: Keep the rice washing water or put the orange peel in a pot and add water to boil, soak the yellowed clothes in it and scrub them to easily restore the whiteness of the clothes.

Not only is it simple, but it is not like the fluorescent brightener sold on the market will produce *** and will not hurt the clothing, which is a good way to try; Yellow stains caused by sweating, remove with ammonia: Sweat stains caused by sweating, because sweat containing fat, is easy to condense in the cloth fiber, so add about 2 tablespoons of ammonia when washing, soak for a few minutes, scrub it, and then wash it with water, and treat it according to the general laundry procedure, you can remove the yellow sweat stains!

2) Sometimes, white clothes or light-colored clothes will turn yellow over time, and the main reason for the yellowing of white or light-colored clothes is the oil secreted by the human body, especially the clothes made of polyester fabrics, which are more prone to yellowing. In addition, there is the residual fertilizer residue (most obviously seen in the tail ketone flax fibers) during washing, which will cause large areas of yellowing of the clothes if they are not rinsed well. There are ways to get rid of this phenomenon, such as using a lot of detergent when washing clothes that are resistant to high temperatures.

A traditional way is to hang the yellowed garment in the hot sun, but before that, the yellowing area should be topped with fresh lemon juice, salted and gently rubbed. Warning: Handle with caution and avoid using chlorine bleach.

Fabrics such as Spandex, silk, wool, etc., can be made yellower by contact with chlorine bleach. (3) If the white clothes are left for a long time, the clothes will turn yellow, and the yellow stains on them are mainly protein, and spinach will release dissolved protein ingredients after boiling. 1.

Buy a handful of spinach, after boiling hot water, scoop up the spinach and leave only the boiling soup for later use 2Rub the area with yellow stains in spinach water and soak for 10 minutes 3After soaking, remove the laundry and wash it in the normal laundry routine.

Finish. The clothes are white again!

Tools: orange peel, rice water, pot.

Here's how:

1. Put an appropriate amount of orange peel in a basin and add rice water.

2. Hit **, put the pot on the fire and boil until boiling.

3. Let the boiled orange peel rice water stand to change the temperature.

4. Soak the clothes in water and scrub them repeatedly.

5. Then put in clean water to wash.

6. When the yellow stains are almost washed, wring them out and let them dry.