Why do clothes turn yellow after washing and drying

There are many reasons why <> clothes turn yellow after washing:

1. Clothes absorb dust, stains accumulate, air and bacteria make clothes yellow;

2. The white clothing fabric will be treated with fluorescent brightener when it leaves the factory, and the fluorescent brightener will be lost, so the clothes will turn yellow and old;

3. Sun exposure, oxidizing clothes.

Measures to prevent yellowing:

1. Avoid exposure to the sun.

2. The fabric should be kept dry during storage, and the yellowing of the fabric in the wet state is much greater than that in the dry state.

3. Wash off the stains on the clothes as completely as possible before storing them. In addition to water, inorganic salts, and urea.

In addition, it also contains lactic acid.

fatty acids as well as a variety of amino acids.

Organic matter that has not been completely washed remains on the clothing, and after a long period of oxidation, the color turns yellow.

4. Before storing clothes, add more rinsing times when washing clothes to avoid the residue of washing supplies.

5. When preserving, do not come into contact with leather and belts containing phenolic antioxidants; Avoid phenol-containing antioxidants.

Brown paper, brown cardboard, plastic film, heat shrink plastic film packaging and collectible clothing.

<>1. The reason for the fading of the clothes may be because of the material itself. Clothes that are easy to fade are generally made of natural fibers, such as cotton, linen, silk, and wool. Chemical fibers such as polyester, nylon, spandex, and acrylic are not easy to fade.

2. The reason for the discoloration of the clothes may also be due to the fact that the treatment of the clothes is not in place after dyeing. Clothing dyeAfter the clothes are dyed, some clothes dyes penetrate into the inside of the clothing fibers, and some have not had time to penetrate into the fibers, but only attach to the surface of the fibers.

3. Solution: It is recommended to choose good quality clothes to buy in the process of choosing clothes. At the same time, in the process of washing clothes, it is necessary to pay attention to the laundry according to the advice provided by the sales staff, and do not cause the dye on the clothes to decolor because the water temperature is too high when washing the clothes.

If you wash your clothes for the first time according to the regular procedure, don't panic, if it is a cotton fabric or nylon fabric, you can buy a small bottle of cotton fixing agent or acid fixing agent at home for color fixing.

The reason why white clothes are dried and yellowed may be that the clothes are not washed after washing, and sweat stains and oil remain on the clothes. Sometimes if you see the inside of the collar or cuffs of white clothes yellowing, it is because the sweat stains and grease left by the body are still on the clothes, and the clothes will be easy to yellow if they are not thoroughly cleaned.

You can re-wash the clothes to make them white, you need the following materials: toothpaste, salt, white vinegar, water.

The specific method steps are as follows:

1. Squeeze a section of toothpaste into clean water, and it should be noted that the toothpaste needs to be white.

2. Squeeze in a section of white toothpaste, and then add an appropriate amount of salt to the water.

3. Pour an appropriate amount of white vinegar into the basin, and the white vinegar can be used as edible white vinegar at home.

4. Stir gently with your hands to stir the toothpaste, salt and white vinegar evenly to fully dissolve them in water.

5. Completely submerge the yellowed clothes in water and soak for about 20 minutes.

After a few minutes, rub your clothes repeatedly with your hands and wash them as normal.

7. After a period of washing, the yellowed clothes will become bright and white.

1. A little alkaline substance in the laundry detergent remains on the clothes. In the process of washing clothes with laundry detergent, the alkaline substances in the laundry detergent will destroy the color agent in the clothes and damage the texture of the clothes, and then the clothes are not washed after washing, and the laundry detergent remaining on the clothes will be damaged by fiberization under the sun for a long time under the sun, and the clothes will often gradually turn yellow as a whole over time.

2. Perspiration stains and grease remain on the clothes. Sometimes we see yellowing on the inside of the collar or cuffs of white clothes, it is because the sweat stains and oil left on our bodies are still on the clothes, and if they are not thoroughly cleaned, the clothes will easily turn yellow.

3. The water temperature is too high. If the water temperature is too high when washing the clothes and the water temperature is low when rinsing, then the clothes will also appear yellowing after drying.