| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing high quality long fiber pulp having high degree of whiteness with reducing environmental load by waste water. SOLUTION: This method for producing the long fiber pulp mild to the global environment is to make use of an existing kettle, mainly use an alkali metal sulfite as a cooking liquor and very slightly cook the raw plant material of the long fiber. The long fiber pulp can be produced in low-pollution by fiber opening by defibrator such as a beater or the like to extremely reduce organic materials in the raw fiber material and extremely reduce the environmental loading.
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