Any pulp made by the sulphate process, whose cooking liquor is mainly a mixture of sodium hydroxide and sodium sulphide.
Chemical pulp which has been manufactured using sodium sulphate as the main cooking chemical
The Kraft process is the world's predominant chemical pulping process. The name is derived from the German word for "strong". The method involves cooking (digesting) wood chips in an alkaline solution for several hours during which time the chemicals attack the lignin in the wood. The dissolved lignin is later removed leaving behind the cellulose fibres. Unbleached kraft pulp is dark brown in colour, so before it can be used in many papermaking applications it must undergo a series of bleaching processes.
Chemical wood pulp produced by digesting wood by teh sulphate process. Usually a strong, unbleached softwood pulp used for packaging papers.
Fid Pulp produced with the kraft process. Synonym: sulphate pulp.
Chemical wood pulp produced by digesting wood by means of the sulphate pulping process.
