As intimate apparel for infants and toddlers, the standards for baby socks must balance safety regulations with product characteristics.
The standards for baby socks are primarily based on Class A requirements of GB 31701-2015 "Safety Technical Specifications for Infant and Child Textiles," and the FZ/T 73025-2019 "Infant and Toddler Knitted Apparel" standard is recommended.
Safety Standards: GB 31701-2015 Class A
Formaldehyde content ≤ 20mg/kg (far lower than Class B's 75mg/kg);
pH value 4.0~7.5, to avoid irritating delicate skin;
Prohibited from using decomposable carcinogenic aromatic amine dyes;
No fluorescent whitening agents, no migrating dyes;
Saliva fastness ≥ Grade 3, to prevent dye fading when the baby bites.
Product Standard: FZ/T 73025-2019 "Infant and Toddler Knitted Apparel" The internal quality requirements are stricter, with specific indicators for aspects such as dimensional change rate after washing, color fastness, and extractable heavy metal content. Quality grades are divided into superior, first-class, and qualified products; superior products are recommended as the first choice.
