It is not that the quality is bad, it is a product that does not directly contact the skin or a textile product that only has a small area in direct contact with human skin.

1. Category C refers to products that do not come into direct contact with the skin. Textile products that are not in direct contact with human skin when worn or used, or only a small area is in direct contact with human skin. Such as coats, curtains, tablecloths, etc. When purchasing, consumers should be optimistic about whether the safety category meets their personal needs and the type of clothing.

2. Category A refers to textile products for infants and young children, that is, textile products worn or used by infants and young children aged 36 months and under, such as diapers, high-end underwear, pajamas, bedding, etc.

3. Category B refers to textile products that are in direct contact with the skin, that is, when worn or used, most of the area of ??the product is in direct contact with human skin, such as shirts, T-shirts, skirts, pants, etc. .

Extended information:

Different categories of products also reflect indicators such as formaldehyde content and acid-base value (pH value). The formaldehyde content of Class A products must be less than 20 mg/kg, and the pH value is allowed to be in the acidic range of 4.0 to 7.5. The formaldehyde content of Class B products is less than 75 mg/kg, and the pH value is the same as Class A products. The formaldehyde content of Class C products is required to be less than 300 mg/kg, and the pH value is allowed to be in the range of 4.0~9.0.

The pH value is a measure of the acidity and alkalinity of a solution. Under normal circumstances, the pH value of human skin ranges from 5.5 to 7.0, which is slightly acidic. The acidic environment of the skin can inhibit certain pathogenic bacteria. to grow and reproduce and protect the skin from infection.

The pH value of textiles is determined by the production and processing process. Skin contact with acid and alkali residues on clothes will cause allergies; the pH value of textiles that is too high or too low will not only irritate the skin, but may also cause skin irritation. Infect.

People's Daily Online - Teach you to understand the security codes in clothing tags