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Nylon 612 (PA612) represents the pinnacle of synthetic filament technology for oral care and high-end industrial applications. Unlike standard PA6 or PA66, PA612 possesses a unique molecular structure that results in extremely low water absorption. This ensures that the spiral filaments maintain their stiffness, elasticity, and "flick" action even in wet environments.
The "Spiral" geometry adds a mechanical advantage—the twisted profile creates additional surface area and edges, significantly increasing the Information Gain of the cleaning process by removing more biofilm and plaque than traditional cylindrical filaments.
Established in 1991, Jiasheng began as a specialist in synthetic filaments. Over 33 years, we have mastered the performance of materials used in hair brushes, toothbrushes, and makeup brushes. In 2008, we vertically integrated with downstream partners to produce finished brushes, ensuring quality control from the raw polymer molecule to the retail-ready product.
As environmental concerns grow, we are leading the transition toward recyclable and biodegradable materials, reducing plastic pollution while maintaining high-performance standards.
Global Footprint: To mitigate geopolitical risks and trade barriers, we are expanding our manufacturing base to Thailand and Vietnam in 2024, ensuring a resilient supply chain for our global partners.
Industry Expertise
China, Thailand, Vietnam
Bio-based Polymers
How we leverage automation to provide wholesale advantages.
Precision control over filament diameter (±0.01mm) and spiral pitch for consistent wholesale quality.
Real-time visual monitoring systems detect defects in filament texture and color consistency.
Integrated manufacturing reduces lead times by 30% compared to fragmented supply chains.
From polymer compounding to finished brush tufting—total control over the E-E-A-T chain.
Our R&D roadmap focuses on three pillars of "Search Intent Mining"—anticipating what global brands need before they ask:
By aligning with Google's E-E-A-T principles, we provide documented proof of material safety and environmental compliance (FDA, REACH, RoHS).
Tailored filaments for diverse global sectors.
Soft and medium PA612 spiral filaments for premium electric toothbrush heads and manual orthodontic brushes.
Micro-tapered PA612 for makeup brushes that mimic natural hair while providing superior antibacterial properties.
High-tensile spiral filaments for automotive polishing, surface finishing, and solar panel cleaning brushes.
Navigating global trade requires more than just manufacturing. We provide full compliance documentation for EU and US markets, including ISO 9001:2015, FDA food-grade certification, and GRS (Global Recycled Standard) for our eco-lines.
PA612 has significantly lower moisture absorption. PA6 absorbs up to 9% water, which softens the bristles and reduces cleaning power. PA612 stays below 1%, maintaining professional-grade stiffness and longevity.
Spiral shapes increase the mechanical scrubbing surface. In clinical studies, spiral filaments show a 20-30% improvement in removing interdental plaque compared to standard round filaments.
Yes. While we are a high-capacity factory, we offer multi-level customization services. We help startups and established brands with material selection, color matching, and functional configuration.
Our expansion into Thailand and Vietnam helps buyers avoid certain tariffs and diversification of supply chain risks, ensuring stable pricing and delivery schedules despite global geopolitical shifts.
Tailored design, material selection, and functional configuration to meet personalized market needs.
Continuous exploration of recycling and biodegradable materials to minimize carbon emissions.
Possessing a global manufacturing system that integrates material production with finished goods.
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Jiasheng