Some people say that "white clothes turn yellow" cannot be avoided, and there is no way to treat. Is the yellowing of white clothes really "a fatal disaster"? Is it really hard to stop? In fact, otherwise, yellowing of white clothes can be cleaned.
Bleach
It is difficult to clean white clothes with ordinary laundry detergent when they turn yellow, but bleach is still very effective. For example, the common Sodium Hypochlorite Bleach on the market, the main ingredient in it is sodium hypochlorite (NaCIO), which can produce bleaching hypochlorite when hydrolyzed. Chloric acid (HCIO), this kind of substance has the characteristics of weak acid and strong oxidation, which can destroy the molecular structure of yellow substance and make it fade, and the effect is more obvious.
Soak in lemonade
Slice a lemon and place the lemon slice in hot water. Soak the yellowed white clothes in it for 10 minutes, and finally wash the clothes and dry them. This method is very suitable for white clothes that are yellowed due to the secretion of human body oil. Lemons are rich in citric acid. Citric acid is a strong organic acid, which can be decomposed into a variety of products after heating, and can achieve the effect of removing yellow stains after reacting with acid, alkali, glycerin, etc.
Baking Soda
Baking soda is known as the "all-rounder". Add two tablespoons of baking soda to warm water and stir to dissolve evenly in the water. Then soak the yellowed clothes for about 10 minutes, take them out and wash them with clean water. Clothes will become soft and white. You can add some salt or toothpaste when adding baking soda to the water, the effect will be better.
As long as it is properly maintained, white clothes are not easy to turn yellow. There are two methods:
Wash thoroughly
A large part of the reason for the yellowing of white clothes is that the clothes are yellow and old due to unclean cleaning, such as sweat stains. In addition to water, inorganic salts, and urea, sweat contains fatty acids and other amino acids. If it is not cleaned, after a long period of oxidation, these residual small molecules will undergo chemical reactions on the surface of the clothes, resulting in yellowing of the clothes. Therefore, it is very important to choose a good washing machine and laundry detergent, which can effectively prevent the clothes from turning yellow while cleaning them better.
Proper storage
Try not to store clothes in plastic bags or cardboard boxes.
Antioxidant BHT is usually added to plastic bags and cartons during the production process to prolong the service life, but BHT will react with nitrogen oxides in air pollutants to produce yellow substances, and then the resulting yellow substances will be sublimated again attached to clothing.
Keep storage space dry.
A humid and unventilated environment is easy to breed bacteria and cause yellowing of clothes, and the longer the storage time, the more serious the yellowing of clothes. Desiccant can be placed in closets and other places, and out-of-season clothes can be taken out to dry regularly.
White clothes made of silk should avoid drying in the sun.
Silk is a material that tends to turn yellow during use. Because there are two kinds of proteins in the protein that make up the silk, it is easy to produce yellow substances under the combined action of ultraviolet rays, water and oxygen.
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Post time: Jul-11-2023
