Valkeakoski based Anpap Oy builds on the efforts of the Jylhävaara workshop airlaid group of United Paper Mills and the technology group of Walkisoft. During the 1980’s and -90’s, Walkisoft was one of the world’s leading Airlaid producers, developing Airlaid process and machinery at the same time. In 1999, the United Paper Mills Walkisoft was aquired by a US based company, Buckeye Technologies Inc (now part of Georgia-Pacific). After the deal, Walkisoft technology unit became Buckeye Technologies Finland. After Buckeye’s acquisition of Walkisoft, Buckeye became the largest single Airlaid producer in the world.