Technology
Our Technology
& Equipment
Core Technology Stack
Our core technologies enable precision sorting and high-quality recycling — from NIR spectroscopy to AI vision to ultrasonic cleaning.Spectral (NIR) sorting, AI visual sorting, and multi-stage washing.We're one of the few facilities in Taiwan with full food-grade rPET cleaning capability.
Core Technology
NIR Spectroscopy Sorting
Shyechih adopted NIR spectroscopy in 2011, becoming the first recycler in Taiwan to do so. NIR identifies plastic composition via near-infrared, independent of surface color.
AI Vision Detection
AI solves what NIR can't — the 'detail differences.'
NIR only identifies material; AI handles non-standard recyclables — appearance, contamination, brand, color, cleanliness, regulatory compliance.
- Material type
- Food-grade / Non-food-grade
- End use
- Brand
- Color
- Clean / Contaminated
- Compliance with Taiwan recycling regulations
AI is well-suited to solving the “non-standardized” identification problem in recyclables. By turning non-standard materials into something identifiable and manageable, it dramatically reduces manual inspection load, stabilizes purity, and enables higher-grade applications.
Robotic Arm Sorting
After AI classification, robotic arms execute the fine sorting — replacing repetitive manual work with 24/7 consistent operation.
Benefits:
- Eliminates large-scale repetitive manual work
- 24-hour stable operation
- Consistent sorting speed — no fatigue, no missed items
- More efficient overall workforce allocation
Multi-Stage Washing System
Beyond standard 'crush → wash → dry,' we add spectroscopy bottle selection, float wash, hot wash, water wash, and ultrasonic cleaning.
Spectral bottle sorting
Crushing
Float wash
Hot wash
Water rinse
Ultrasonic cleaning
Spectral flake sorting
Drying
Achieves higher cleanliness standards, suitable for engineering plastics and food-grade processing.
Food-Grade PET Line
Certified for direct contact with beverages. The highest standard of recycled plastic processing.
Features:
- Low residual grease and chemicals
- High-purity processing flow
- Higher-standard foreign-particle detection
- Suitable for food-contact materials (Food-contact grade)
Wastewater Recycling System
70% of process water reused. Reduces fresh water consumption and discharge.
Bottle Inspection & Quality Control
Every batch tested for IV, MFI, color uniformity, and contamination before shipment.
Inspection items include:
- Transparency (L, La, Lb values)
- Flake diameter size and uniformity (apparent density)
- Foreign matter / contamination content (ppm)
- Odor and surface cleanliness
- Basic physical properties (viscosity, melting point, moisture, particle size, etc.)
Certifications
