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METHOD FOR PRODUCING PULP FIBER RAW MATERIAL, AND PULP FIBER RAW MATERIAL AS CELLULOSE RAW MATERIAL
METHOD FOR PRODUCING PULP FIBER RAW MATERIAL, AND PULP FIBER RAW MATERIAL AS CELLULOSE RAW MATERIAL
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机译:生产纸浆纤维原料的方法,以及纸浆纤维原料作为纤维素原料
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摘要
The purpose of the present invention is to provide a method for producing a pulp fiber raw material suitable as a cellulose raw material. This invention is as follows. A method for producing pulp fiber raw material as a cellulose raw material from pulp fiber to be treated, characterized by involving an ozone treatment step (S36) in which, by supplying an ozone-containing gas to a treatment tank containing a treatment liquid that contains pulp fiber inclusions containing pulp fibers to be treated, ozone-treated pulp fibers are formed from the pulp fibers to be treated, and an alkali treatment step (S39) for treating the aforementioned ozone-treated pulp fibers with an alkaline aqueous solution to form the aforementioned pulp fiber raw material having a hemicellulose content ratio less than 8.0 mass%.
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