If the color of close-fitting clothes fades, it is best not to wear them. If you wear faded underwear for a long time, your skin will be exposed to chemicals in dyes for a long time, which will easily lead to skin allergies, dermatitis and even cancer. Especially the inferior clothes whose quality cannot be guaranteed are more likely to contain carcinogens. If children's clothes fade badly, it's best not to wear them for children. Children's skin is delicate and fragile, and clothes with serious fading will pollute children's skin with chemicals in dyes, causing skin allergies and other discomfort. Children's wear should be guaranteed in quality, even if it fades slightly, it won't have a big impact.
Don't buy textiles with odor, because most clothes with odor such as musty smell, kerosene smell, fishy smell and benzene smell have excessive formaldehyde content. Close-fitting clothes should avoid red, black and other products. Its color fastness is easy to fail to meet the requirements. If the color fades, you can't wear it next to your body. ; Benzene chloride and formaldehyde, two toxic substances, were originally used in paints and coatings. Nowadays, in order to pursue beauty, it is often used in the treatment of clothing raw materials, which has the function of anti-wrinkle and keeping clothes bright. Benzene chloride and formaldehyde are very harmful to human body. If people are exposed to toxic clothes for a long time, they will feel dizzy due to excessive inhalation of benzene chloride and formaldehyde.
Some people with weak constitution or skin allergy may induce rashes, bronchitis, asthma and other diseases after putting on clothes directly. To prevent this, you can put new clothes that don't fit you in the sun to dry before wearing them. Close-fitting new clothes should be washed or soaked at least once.
Because clothes fade, there are other reasons besides poor fabric. I think some dyes, such as sulfur dyes and vat dyes, can decompose aromatic amine dyes, which are easy to fade, and clothes that are easy to fade may have some unsafe factors. For example, decomposable aromatic amine dyes are prohibited in the National General Safety Technical Specification for Textile Products. The reason is that these dyes may be absorbed by the skin and remain in the human body during long-term contact with the human body.