Shenzhen Donggang New Material Technology Co., Ltd. is one of the leading manufacturers and suppliers of pbt single-tapered toothbrush filaments in China. Please feel free to wholesale bulk pbt single-tapered toothbrush filaments in stock here from our factory. All customized products are with high quality and low price. Contact us for quotation.
Product Introduction
Synatra, Donggang's in-house oral-care brand, develops PBT spiral single-tapered toothbrush filaments, a differentiated high-performance bristle material. It integrates two core advantages: spiral-twisted structure and ultra-fine single taper, solving industry pain points of ordinary straight bristles such as small cleaning contact area and low plaque-removal efficiency.
Manufactured with proprietary spiral-twisting technology to form three-dimensional spiral grooves, the bristles greatly expand frictional contact against tooth surfaces and interdental gaps. One-end precision ultra-soft tapering delivers tip diameter down to 0.01 mm, penetrating gingival crevices without irritating soft oral tissues. Thanks to self-developed integrated spiral-and-tapering composite process, the overall tapering rate stably reaches ≥95 %, far exceeding common industry standards.
Product Specification Parameters
|
Item |
Standard Parameters |
Customizable Range for Clients |
|
Substrate Material |
Food-grade modified PBT polyester chips |
Integral co-extrusion with antibacterial, fluoride-infused, negative-ion and bamboo-charcoal functional masterbatches available |
|
Filament Diameter Range |
0.10 mm-0.25 mm |
Precisely adjustable in 0.01 mm increments |
|
Standard Filament Length |
15-35 mm |
Customizable 15 mm ultra-short size for children and 25-35 mm size for adults |
|
Process Structure |
Integrated spiral twisting + single-end one-sided tapering, tapering rate ≥95 % |
Adjustable spiral twist degree (tight-twist / loose-twist); ultra-soft tips ＜0.01 mm |
|
Color Options |
Full Pantone color matching |
Solid-color & dual-color composite filaments |
|
Standard MOQ |
200 kg |
Small trial orders accepted for in-stock standard colors |
|
Sample Lead Time |
7-10 working days |
Free samples; client bears shipping cost only |
|
Mass Production Lead Time |
15-30 working days |
Expedited delivery available by reserving exclusive production lines |
|
Standard Packaging |
25 kg moisture-proof export cartons |
Two options: bundled packing or industrial coils |
Unique Core Advantages of PBT Spiral Single-Tapered Filaments
3D spiral-groove structure for greatly enhanced cleaning power
Spiral twisting forms three-dimensional concave-convex grooves, enlarging frictional contact surface during brushing and substantially improving removal efficiency of food residues and dental plaque from gaps between teeth.
0.01 mm ultra-soft single-end tips, gum-friendly without irritation
Adopting single-end precision tapering technology with tapering rate ≥95 %, tip diameter is stably controlled below 0.01 mm. Ultra-fine tapered tips easily access gingival gaps while the spiral shaft maintains sufficient supporting toughness.
PBT low-water-absorption spiral structure, quick-drying and mildew-resistant
Low-material water-absorption combined with spiral structure enables fast water drainage and evaporation.
Stable spiral setting, anti-lodging under high-frequency electric-toothbrush vibration
Multi-stage gradient resilience setting locks spiral geometry against untwisting. Bristles maintain shape under tens of thousands of high-frequency reciprocating vibrations from electric toothbrushes.
Self-Developed Exclusive Production Technology
Co-blending with special flexible PBT masterbatch for spiral application
Custom-formulated to solve bristle-breakage risks during twisting-and-twining, balancing spiral-twist toughness and single-tip softness.
Precision extrusion & forming
Uniform multi-zone stretching produces smooth burr-free filaments, providing homogeneous stable raw material for subsequent spiral twisting and precision tapering.
Integrated composite process of spiral twisting plus single-end tapering
Donggang integrated composite equipment performs uniform spiral twist-setting first, followed by one-sided precision taper grinding. Both spiral texture and tip dimension are fully controllable.
Multi-Dimensional Customization Services
Specification Customization: adjustable filament diameter; custom-cut filament length.
Functional Modification Customization: Integral co-extruded spiral filaments with food-grade antibacterial, anti-caries fluoride-infused, negative-ion oral-care and bamboo-charcoal adsorption functions.
Color Customization: Full Pantone color range, dual-color contrasting spiral filaments.
Bristle-Style Customization: Two options freely available: high-density deep-twist spiral and soft shallow-twist spiral.
Main Application Scenarios
Stain-removal manual adult toothbrushes
3D grooves of spiral single-tapered bristles boost friction for deep stain removal, while ultra-fine single tips protect gum health.
High-frequency vibrating electric toothbrushes
Ermanently fixed spiral geometry resists deformation and delivers consistent stable interdental cleaning.
Soft-bristle children's toothbrushes
Spiral structure balances softness and cleaning power. 15 mm ultra-short filaments fit small brush heads with quick-drying and bacteriostatic properties.
Gum-care toothbrushes for periodontally-sensitive users
0.01 mm ultra-soft single tips penetrate gingival crevices. Spiral shaft cushions friction, ideal for orthodontic patients and users with fragile gums.
Why Choose Donggang PBT Spiral Single-Tapered Toothbrush Filaments
1. We hold patents for integrated spiral-plus-single-tapering composite technology and are among few domestic manufacturers for stable mass-production of spiral-tapered bristles.
2. One-on-one oral-industry engineer support for material-selection matching client budget and tufting-equipment requirements.
3. Comprehensive after-sales guarantee: returns & exchanges supported for non-conforming batches on spiral texture, tapering rate and water-absorption rate. Full-process technical support covers tufting bristle breakage and finished-product application issues.
1992
established in
31,250 m²
factory area
32
fully automatic wire drawing production lines
8,128 Tons
annual total output
Long-Term Global Partner Brands
Donggang maintains stable long-term cooperation with over 40 world-renowned brands. Leveraging core strengths of three-dimensional deep cleaning and ultra-soft gum-friendliness, PBT spiral single-tapered toothbrush filaments are steadily supplied to global manufacturers of stain-removal adult toothbrushes, children's toothbrushes and electric brush heads, achieving leading re-order rates among cross-border supermarket brands.
Authoritative Certifications & Test Reports
PAHS
FDA
ISO9001
RoHS
Ortho benzene 17P
Frequently Asked Questions (FAQ)
Q1: What is the MOQ for spiral single-tapered bristles? Are samples free of charge?
A1: Standard MOQ for spiral single-tapered bristles is 200 kg. Small trial orders are available for standard in-stock colors. Samples are free of charge; the client only bears shipping fees. Samples will be dispatched within 7-10 working days.
Q2: How to choose between spiral single-tapered bristles and ordinary straight single-tapered bristles?
A2: Choose spiral single-tapered for stain-removal, electric-toothbrush and deep-cleaning purposes. Select ordinary straight single-tapered bristles for economical daily-use toothbrushes.
Q3: Can spiral single-tapered bristles be modified with antibacterial or fluoride-infused functions?
A3: Integral co-extrusion with antibacterial / fluoride-infused masterbatches is supported. Functions are embedded inside bristle matrix and will not degrade after washing and brushing.
Q4: Can tapering rate and tip specifications of spiral single-tapered bristles be adjusted?
A4: Overall tapering rate stably reaches ≥95 %. Custom options include 0.01 mm ultra-soft tips or standard 0.025 mm tips; both tight-twist and loose-twist spiral textures are configurable.
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