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Pabrik Kertas Indonesia or commonly known abbreviated as Pakerin or PT. Pakerin is an Indonesian pulp and paper company based in Surabaya, East Java. Pakerin was founded in 1977 at Mojokerto Regency by Njoo, Soegiharto.
Chemical pulping involves dissolving lignin in order to extract the cellulose from the wood fiber. The different processes of chemical pulping include the Kraft process, which uses caustic soda and sodium sulfide and is the most common; alternatively, the use of sulfurous acid is known as the sulfite process, the neutral sulfite semichemical is treated as a third process separate from sulfite ...