Ji'An Group's New Containerboard Machine On-Stream in China

PM 3 produces about 1,900 tons per day of white top testliner.

March 5, 2012 - Metso said that a containerboard production line, PM 3, that it supplied to Ji'An Group successfully came on stream at the end of November 2011 and the line’s curtain coating process was started up on January 4, 2012.

PM 3 was installed at Ji'An's mill in Haiyan County, Jiaxing City in Zhejian Province, China.

According to Metso, the 7.25 meter-wide PM 3 is the world’s fastest coated board machine at the design speed of 1,200 m/min.

"The new PM 3 features an OptiLayer multilayer curtain coating unit that applies two coating layers on the web at the same time in a non-contact operation with no speed restrictions," Henri Vaittinen, Metso's Paper Technology Manager.

"Curtain coating is a coating method, which gives a full coverage for brown base sheet. The uniform-coverage coating layer makes it possible to run the machine without expensive bleached fiber in furnish. This is a totally new tool for optimizing raw material costs," Vaittinen said.

The daily production capacity of the PM 3 is approximately 1,900 tonnes of coated and uncoated white top testliner in the basis weight range of 130-280 g/m2, mainly without virgin fiber.

Ji'An Group Co. Ltd. currently produces containerboard on four machines in addition to the PM 3. The company’s annual production capacity is about 1,65 million tonnes.