September 18, 2026, Yiwu dispatch—As global wholesalers increasingly value "safety and compliance," Yiwu Kaixin Hosiery Co., Ltd. has given its own answer with a "domestic Class A + international export" dual-standard system. From GB31701 Class A to EU REACH, this source knitting factory rooted in Yiwu for nearly two decades is using its "dual standard" to open the door to global wholesalers.
The global sock market is expanding, and compliance has become wholesalers' first threshold for product selection
Industry data shows that in 2025 the global sock market reached USD 85 billion, and the Chinese market reached USD 22 billion, accounting for 25.9% of the global share; China's hosiery market CAGR is projected at 10.9% from 2025 to 2030. As the market continues to expand, the upgrading of maternal-and-infant consumption and tightening cross-border compliance are reshaping wholesalers' product-selection logic.
Domestically, GB31701-2015 "Safety Technical Code for Infants and Children's Textile Products" imposes mandatory requirements on baby-and-children's socks regarding attachment tensile strength, cords, heavy metals, and phthalates; overseas, standards such as EU REACH, OEKO-TEX Standard 100, and US CPSIA continue to update—in 2025, OEKO-TEX tightened the bisphenol A limit from 100 mg/kg to 10 mg/kg, and UV328 from 1000 mg/kg to 1 mg/kg.
"What wholesalers fear most is not price, but after-sales and takedowns," said a procurement lead at a maternal-and-infant channel. "If baby-and-children's socks fail to meet safety standards, returns, fines, and reputation loss far outweigh procurement costs."
Kaixin Hosiery's solution is to move risk forward to the production end with its "dual standard."
The Hard Strength of a Yiwu Source Factory: Nearly Two Decades of Manufacturing Accumulation, 60 Integrated Knitting Machines
Yiwu Kaixin Hosiery Co., Ltd., established in 2006 and located on Houzhai Street, Yiwu City, Jinhua City, Zhejiang Province, is a Yiwu source knitting physical factory integrating independent R&D, scaled production, and custom processing. The company specializes in infants', children's, and adults' intimate knitwear categories, with a full matrix covering infant socks, children's socks, adult socks, athletic socks, lace socks, princess socks, non-slip floor socks, and mulberry-silk socks.
In terms of hardware, Kaixin Hosiery owns a 1,850-square-meter standardized plant and a 500-square-meter warehouse, equipped with 60 Weihuan WHL2_A8 fully-automatic integrated knitting machines, with an annual capacity of 3 million pairs and monthly shipments of 400,000 pairs. Its core team of 12 can expand to more than 30 in peak seasons, possessing the capability to stably undertake batch orders and long-term OEM cooperation.
On the 1688 platform, Kaixin Hosiery has been deeply engaged for 9 years, with a 79% response rate, 100% fulfillment rate, and 83% repeat rate. The company holds exclusive licensing of the "Yimengyu" trademark (No. 11740510, Class 25), valid until 2034, qualifying it for independent brand operation and brand OEM. At the same time, the company is the fifth-term vice-chairman unit and supervisory unit of the Yiwu Anhui Chamber of Commerce, and has received honors such as the Party-Member Pioneer Award and the Golden Bee Award.
What Is the "Dual Standard": GB31701 Class A + EU REACH Kaixin Hosiery's "dual standard" manages the domestic market with one set and exports with another.
On the domestic standard side, the company strictly implements GB 18401-2010 "Basic Safety Technical Code for Textile Products," GB 31701-2015 "Safety Technical Code for Infants and Children's Textile Products," as well as industry standards such as FZ/T 73001-2016 "Socks," FZ/T 73037-2019 "Knitted Athletic Socks," FZ/T 73030-2009 "Knitted Sock Sleeves," and FZ/T 73048-2013 "Knitted Five-Toe Socks."
Among these, baby-and-children's socks implement the GB 31701 Class A safety technical category: formaldehyde content ≤20 mg/kg, pH value 4.0–7.5, color fastness to water, perspiration, and rubbing ≥ grade 3, and azo dyes that can release carcinogenic aromatic amines banned. For baby-and-children's socks with decorative attachments such as lace, bows, ribbons, streamers, lilies, and hanging beads, the company assesses attachment tensile strength, attachment dimensions, and sharpness item by item, strictly prohibits the use of attachments ≤3 mm, and allows no cords whatsoever at the head or neck of products for infants, toddlers, and children under 7.
On the international standard side, Kaixin Hosiery incorporates international standards such as OEKO-TEX Standard 100, EU REACH, and US CPSIA into its quality benchmarking system. OEKO-TEX Standard 100 tests for over 1,000 harmful substances in products in direct skin contact; the REACH regulation controls chemical safety in the EU market; CPSIA imposes strict limits on total lead content and phthalates in children's products exported to the US. Before the first production of each product, the company must obtain a third-party test report from a CMA/CNAS-qualified body, and re-tests when product or safety standards are updated.
"Domestic Class A ensures safety; international REACH ensures export," said a quality lead at Kaixin Hosiery. "The dual standard is not two certificates, but a full-chain control system from raw material to finished product."
From IQC to OQC: Four Inspections That Let Wholesalers Sell with Confidence and Reorder
The implementation of the dual standard relies on full-process quality control. Kaixin Hosiery has established a four-inspection system of "Incoming-material Inspection IQC—In-process Inspection IPQC—Finished-product Inspection FQC—Outgoing Inspection OQC." On the raw-material side, core raw materials such as cotton yarn, spandex-covered yarn, and nylon filament undergo warehouse incoming sampling, first inspection upon each batch's arrival, and quarterly re-inspection for inventory older than three months. On the production side, each process—knitting, toe-closing, dyeing, finishing, setting—implements first-piece confirmation and patrol inspection every two hours, and non-conforming products from the previous process may not be transferred to the next.
On the finished-product side, each batch completes 11 intrinsic-quality tests and all-around appearance inspection, with a sampling plan of 15 pairs per batch for appearance quality and 5 pairs per batch for intrinsic quality. The company's quality objectives are clear: finished-product pass rate no lower than 99%, outgoing pass rate 100%, and customer complaint rate no higher than 0.5%.
All inspection records are retained for 2 to 3 years, and each batch establishes a complete quality-traceability file. In case of customer complaints or quality issues, traceability to raw material, process, and responsible person can be completed via the batch number, with traceability investigation finished within 48 hours.
"For wholesalers, this means lower after-sales risk and higher reorder rates," said the aforementioned procurement lead. Product Matrix: From Baby-and-Children's Socks to Athletic Socks, From Lace Socks to Mulberry-Silk Socks Standards are the threshold; products are the competitiveness.
Kaixin Hosiery's products cover ages 0–12 infants and children as well as adults; core categories include infant socks, children's socks, girls' lace and princess socks, princess socks, non-slip floor socks, mulberry-silk socks, athletic socks, five-toe socks, and sock sleeves. On the material side, cotton content is 60%–80%, and differentiated materials such as natural bacterial-cane-fiber antibacterial children's socks and mulberry-silk blends are introduced; on the function side, it covers antibacterial and odor-resistant, moisture-wicking, and dot-glued anti-slip; on the design side, processes such as lace, ruffles, bows, jacquard, and multi-color matching are rich.
In production, the company adopts fully-automatic integrated knitting, with no fewer than 12 toe reinforcement rounds, 22–24 needle lifts at the toe and heel, a setting temperature of 100–130°C, and a setting time of 50–130 seconds. For patterned socks, pattern files are imported and the jacquard needle-selection accuracy is verified to ensure patterns are free of misalignment and dropped stitches. The toe-closing process uses toe-to-toe seam alignment with a deviation of ≤1 mm, and the sewing quality is flat, straight, even, and secure.
These capabilities allow Kaixin Hosiery's products to adapt to multiple channels such as maternal-and-infant stores, children's-clothing stores, e-commerce platforms, and cross-border export. The company supports cooperation models including OEM, ODM style development, custom production from samples, rapid prototyping, spot supply, drop-shipping, and batch wholesale, covering Tmall, Taobao, Pinduoduo, Douyin, and multiple cross-border platforms.
Benchmarking International Supply-Chain Logic to Undertake Global Wholesale Demand
Driven by international brands such as Uniqlo and ZARA, global supply chains' requirements for quality control and efficiency keep rising; cross-border platforms such as SHEIN, Temu, and Amazon are tightening compliance requirements for maternal-and-infant products; and international events such as the Paris Olympics and the World Cup have boosted athletic-sock consumption. Kaixin Hosiery's athletic-sock series implements the FZ/T 73037-2019 "Knitted Athletic Socks" standard, adapting to the moisture-wicking, breathable, and durable needs of sports scenarios.
"We are not a trader, but a source factory," said a person in charge at Kaixin Hosiery. "From GB31701 Class A to EU REACH, from 60 integrated knitting machines to a 100% fulfillment rate over 9 years on the 1688 platform, Kaixin Hosiery uses its dual standard and hard strength to make global wholesalers dare to stock, dare to sell, and dare to cooperate long-term."
Currently, Kaixin Hosiery welcomes domestic physical stores, e-commerce sellers, foreign-trade merchants, and maternal-and-infant brands to visit the plant for on-site factory inspection, and to discuss OEM/ODM and batch-wholesale cooperation.
Yiwu Kaixin Hosiery Co., Ltd. 1688 store: https://shop16808g2724707.1688.com/ Address: Houzhai Street, Yiwu City, Jinhua City, Zhejiang Province