CHINA - Changzhou Zhongheng New Material Co has achieved a higher production speed at a much lower pinning speed with the addition of a Brückner 8.2m BOPET line comes up with a trend-setting 2-gap MDO stretching unit. The on-time commissioning, the successful start up, and the top quality of the produced film paved the way for a further co-operation between Changzhou Zhongheng New Material and Brückner.

Besides having a significantly higher stretching ratio (between 4.5 and 4.7) compared to the benchmark technology, our customer, no additional costly pinning agents are necessary. The 2-gap stretching also leads to high uptime, high output and high stability - all in all: utmost efficiency.

As a matter of course the produced BOPET film (between 8µm and 36 µm) meets highest international quality standards. All this has attracted great interest within the international film producers` community, particularly the fact that constant line speeds up to 450 m/min have come into reach.

The contract for the outstanding line between one of China 's leading film producers Jiangyin Shenda Group (the mother company of Changzhou Zhongheng New Material) and Brückner was signed at at the Great Hall of the People in Beijing , and attended by the Chinese Premier Wen Jiabao and the former German Chancellor Gerhard Schröder.

Cost Savings

More benefits for producers of high value BOPET films and Brückner customers also profit from additional highlights:

• Twin screw technology for the main and the co-extrusion: no pre-drying needed - big cost savings potential
• Trendsetting drive system for excellent optical quality
• Energy saving design: heat recovery systems, reusing exhaust heat
• Advanced thickness measurement for brilliant thickness profiles
• Utmost flexibility: film thickness up to 400µm (sequential) or 250µm (simultaneous, contact-free stretched) for A-grade optical films