Monitoring and improving the quality of recovered fibre remains a high priority for paper manufacturers, according to presenters at the RISI Fifth Annual China International Recycled Fiber Conference, held in Zhuhai, China, in early December 2016.
Jarkko Haarla of Finland-based Haarla Oy said paper manufacturers pay an ongoing cost to remove “foreign bodies and impurities such as trash, rivets, sand, printing ink, dirt and stickies.”
He said the ZRI process, which uses fine screens and flotation cells, has been demonstrated to increase a paper mill’s yield from it recovered fibre to improve to 81.4% from a previous 80% yield level. “That is quite significant” in terms of dollars and cents, said Haarla.
Ruan Zijian of Hong Kong-based Kenhua Baler Machinery said his firm has hired and consulted with American engineers to “increase our competitiveness.” He said the firm also uses components from Germany and Hardox steel from Sweden to help its balers to “perform very well.”
He said Kenhua has “studied [competing] balers for more than 10 years to know the pros and cons” of other equipment on the market. Ruan said customers in China have asked Kenhua to customize its balers to make larger bales, as domestic shipping does not require bales to be stacked or to fit within ocean-going containers.
Marion Sterner of Italy-based Gruppo X Di X Gruppo Srl described that firm’s efforts to create new products from recovered fibre, including flexible packaging that can stretch at a much higher rate than traditional papers. The firm also has designed a “totally new type of corrugated packaging” that offers sturdy, bi-directional reinforcement, said Sterner.
The RISI Fifth Annual China International Recycled Fiber Conference was 8-9 December in Zhuhai, China.