APPLETON (From the Post-Crescent) -- The Paper Industry International Hall of Fame's membership roster will expand to 135 on Oct. 6 with the induction of six from the United States and Finland.

Thomas Gardner, Niilo Heikki Hakkarainen, Charles Klass, Otto Kress, Irwin Pearl and Juhani Strömberg will join previous members of the Paper Hall of Fame during the 22nd class induction ceremonies at the Radisson Paper Valley Hotel.

The Paper Industry International Hall of Fame recognizes individuals who, through their inventions, initiative and efforts, have built or improved paper and allied industries worldwide. Each of the six inductees is being recognized in one or more categories, including academic, economics, entrepreneur, leadership, inventor/innovator, service and research and development. The 2016 inductees are:

Thomas Gardner, Appleton, conceived of and developed a new process for drying paper using air. Gardner applied his air drying knowledge to improving the dryers on Yankee tissue machines, developing systems for drying heat set inks and inventing the "Floater" dryer that allowed drying heat set inks on both sides of the web at up to four times previous speeds. He also developed the Pocket Ventilating system, and the Gardner-Blow-Through Steam Control System. In 1967, he founded Gardner Systems where he served as president and CEO until his retirement in 2011.

Niilo Heikki Hakkarainen (deceased) Helsinki, Finland, took over as president and CEO of United Paper Mills at a time when it was suffering from severe financial problems and needed a new strategy. He converted a centrally managed company into a group of profit centers that were compelled to compete not only on the market but also with each other. The strategy was a success. Developments during this time included pressure sensitive label laminates, air laid papers, composite materials with paper, polymers and aluminum foil and an aseptic liquid packaging system. At the end of Hakkarainen's era in 1991, UPM was Finland's strongest pulp and paper company and also one of the world's largest.

Charles Klass, Madeira Beach, Florida, has a long history of service to the paper industry from the 1970s. Beginning in 1986, Klass made his mark on the industry as a consultant to numerous companies involved in coating various paper grades. His contributions led to the commercialization of the metered size press, coating of deinked post-consumer recycled waste papers, the addition of fluorocarbons for grease resistance, the development of Crayola Wonder paper, the development of rod coaters for Kohler Coating, the commercialization of nanoparticle biolatex binders for Ecosynthetix, and the development of Colorlok technology for Hewlett Packard for their inkjet papers.

Otto Kress (deceased) Appleton, was responsible for the academic direction of the Institute of Paper Chemistrywhich opened in 1929. For the first 18 years of IPC's existence, Dr. Kress served as the inaugural Technical Director, setting the tone for cutting-edge graduate programs for the industry, conducting research and maintaining a complete library on the subject. In addition to this role, over the course of almost 90 years, he has served in every capacity needed or imaginable, from janitor to secretary, lab technician and teacher. With his help, the Institute of Paper Chemistry became the first graduate program in pulp and paper sciences in the United States, and he was the first practitioner and likely creator of an IPC academic program to produce "scientific generalists" who understood and could apply a wide range of scientific disciplines to paper manufacturing.

Irwin Pearl (deceased) Appleton, strengthened the paper industry and many mills with his skills as a researcher in organic and analytical chemistry. Dr. Pearl was a pioneer in creating more value from wood by finding uses for the lignin and other materials that are normally just burned after being separated from wood fibers. Starting in 1941, he was one of the first in the world to recognize and explore the hidden value of lignin in black liquor. This work not only laid a foundation for the creation of new industries, but it also helped save lives as one of the products he helped extract from lignin was used to treat thousands of people with a deadly infection. The work he launched was ahead of its time, and today is known as biorefining.

Juhani Strömberg, Helsinki, Finland, conceived of and spearheaded water-based label stock laminates, which revolutionized the global market. Label stock is important for the paper industry because the final product needs both face papers and release papers. In 1969, Strömberg was named product development manager in Raf. Haarla, later Raflatac, a division of UPM (United Paper Mills). Strömberg's vision was to produce water-based label stock laminates on- line. He also led the development of a superior glassine released paper, and influenced the development of better quality face papers. The developments revolutionized the global market, with market share of 65% by the end of the 1980s.

The annual ceremony will begin with a reception at 5:30 p.m. Oct. 6, followed by dinner at 6:30 p.m. and the ceremony at 8 p.m. Attendees also will have the opportunity to witness the hanging of the commemorative plaques at the Paper Industry International Hall of Fame within the Paper Discovery Center located at 425 W. Water St. Reservations and sponsorships can be made through the Paper Industry International Hall of Fame office at 920-380-7491.