Super-precision film for Sony

Our company provides “super-precision film” for Sony. Prior to this, customers have been facing quality problems such as uneven side surface, staggered cores, loose coils, and uncontrollable metal foreign objects. It turns out the original supplier cannot effectively improve these issues.
Through the equipment improvement and the efforts of R & D team, Sunkey Packaging has created a complete set of high-quality solutions for customer, meeting customer’s requirements in many aspects:
Side surface deviation: ≤0.1mm
Film surface hardness: ≥92
Loose coil: 0
Production speed: 300m / min
Metal foreign objects: The metal foreign objects above 50um are controllable.
The meters of rewinding increased from 2130 to 4260, saving customers 6 million (RMB) per year.