What are the differences between clothing categories abc? Is category c clothing inferior?
Release Time：
2025-05-29 17:18
What are the differences between clothing categories A, B, and C? Is C-class clothing inferior?C-class clothing is not necessarily inferior; it just cannot be worn directly against the skin.
Class C refers to textiles that do not directly contact the skin, such as thick winter coats, down jackets, and thick trousers. Therefore, according to the latest basic safety technical specifications for products, specific regulations have been set for the pH value of formaldehyde content. It is best to avoid direct skin contact with Class C clothing. The reason for this standard is that clothing or textile fabrics may contain harmful substances such as formaldehyde and decomposable aromatic amines. Excess amounts of these substances can lead to certain diseases over time, such as leukemia. Therefore, based on the degree of skin contact, they are strictly classified into types A, B, and C.
Class C clothing will not cause significant harm to the human body; however, the only requirement is that it cannot be worn directly against the skin. It's acceptable to wear it as an outer garment, such as a coat.
What are the differences between clothing categories A, B, and C?
Class A is suitable for infants and young children, mainly referring to textiles used by infants and young children under 24 months old, including diapers, nappies, underwear, bibs, pajamas, gloves, socks, hats, bedding, etc. Formaldehyde content is ≤20mg/kg, water and perspiration colorfastness ≥3 to 4, dry rubbing and saliva colorfastness ≥4, and pH value is within the range of 4.0 to 7.5.
Class B refers to products that directly contact the skin, mainly textiles that are in direct contact with most areas of human skin during wearing or use. For example: vests, shorts, cotton sweaters and trousers, shirts, trousers, abdominal bands, sheets, etc. Formaldehyde content ≤75mg/kg, water, perspiration, and dry rubbing colorfastness must be ≥ grade 3, and the pH value is allowed to be within the range of 4.0-7.5.
Class C refers to products that do not directly contact the skin, such as sweaters, coats, skirts, curtains, bedspreads, wall coverings, fillings, linings, etc. The formaldehyde content is less than or equal to 300mg/kg, the colorfastness of water, perspiration, and dry rubbing must be above grade 3, and the pH value should be between 4.0 and 9.0. All three types of products do not require a special odor, and the use of fabrics that decompose aromatic amine dyes under reducing conditions is prohibited.
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