Each spindle is physically checked for broken filaments, unevenness, and surface defects. Only spindles that pass move forward.
RELIABILITY & REPORT
EVOLUTION OF FIBER TECHNOLOGY INSPIRED BY NATURE
IN-HOUSE QUALITY CONTROL WORKFLOW
Every Spindle. One Protocol. Four Gates.
We do not rely on batch sampling. Every single spindle of yarn is inspected individually before leaving our facility.
Individual Spindle Inspection
Each spindle is physically checked for broken filaments, unevenness, and surface defects. Only spindles that pass move forward.
Sock Knitting
Each qualified spindle is knitted into a standard sock tube under fixed tension and stitch density. This reveals any uniformity issues invisible to the bare yarn check.
Dyeing
The knitted socks are dyed under controlled temperature, time, and liquor ratio — conditions that match standard customer dyeing profiles.
Grading
Dyed socks are graded under standardized lighting using AATCC or ISO gray scales.
Only grades A or A+ are released to customers.
What you receive is not an average. Every spindle in your order has passed the same fourgate qualification — individually.
LABORATORY COOPERATION NETWORK
IN-HOUSE LAB
routine QC & functional screening
UNIVERSITY-AFFILIATED LABS
Advanced analysis via Donghua University, Zhejiang Sci-Tech University, Beijing Institute of Fashion Technology, Qingdao University
THIRD-PARTY ACCREDITED LABS
Formal certifications (Oeko-Tex®, biodegradation, REACH, RoHS)
TESTING STANDARDS & SOP
All tests follow documented SOP aligned with internationally recognized methods (ASTM, ISO, AATCC frameworks). We do not claim accreditation we do not hold. For formal declarations, we use accredited third-party labs.
GLOBAL COMPLIANCE CERTIFICATION CENTER
We have: REACH test report; OEKO-TEX Standard 100 (Class 1); ISO 9001:2015 / ISO 1400:2015; Bluesign system partner
QUALITY DATA
Full individual spindle inspection instead of batch sampling, zero quality omission risk;
Four-gate strict quality control: physical inspection, knitting verification, dyeing test and professional grading, only A A+ grade products delivered;
Three-level laboratory system (in-house, university-affiliated, third-party accredited labs) for full-range quality detection;
All tests follow ASTM / ISO / AATCC international standards and standardized SOP procedures;
Authoritative global compliance certifications including OEKO-TEX Class 1, REACH, ISO 9001, ISO 14001 and Bluesign;
Stable quality efficient delivery: defective rate ＜ 0.3%, on-time delivery rate 98.5%.
Ensure that every yarn in the customer's order undergoes the same rigorous qualification review, completely avoiding the problems of missed inspections and inconsistent quality caused by sampling tests. Core management concept: Every Spindle. One Protocol.
COOPERATIVE PARTNER
In the world of yarn, every strand of fiber carries craftsmanship and dreams, weaving countless colorful chapters. We are well aware that high-quality yarn is not only the cornerstone of our products, but also an extension of our customers' brand spirit.
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We hope to work together with global brands and supply chains towards a sustainable future through differentiated material innovation and pragmatic services.