发明名称 |
PROCESS FOR MANUFACTURING PAPERBOARD |
摘要 |
A method of producing a paper board comprising: a pulping step of disintegrating and beating fibers from a pulp raw material containing waste paper as a main raw material to obtain pulping process water; a stock preparation step of adding an additive containing a paper strength additive to the obtained pulping process water to obtain a prepared pulp raw material; and a paper-making step of making the obtained prepared pulp raw material into a paper board, wherein the paper board is produced by adding (a) an aqueous solution of hypochlorite and (b) an aqueous solution of water-soluble inorganic ammonium salt or ammonia water to the pulping process water to reduce the amount of the paper strength additive added in the stock preparation step. |
申请公布号 |
KR20150024341(A) |
申请公布日期 |
2015.03.06 |
申请号 |
KR20147035833 |
申请日期 |
2013.06.24 |
申请人 |
KATAYAMA CHEMICAL, INC.;NALCO JAPAN G.K. |
发明人 |
IKESHITA TAKAHITO;FUCHINO YUJI;SHIMOMOTO HIDEAKI;HASEGAWA HIROSHI |
分类号 |
D21H17/66;D21H11/14;D21H17/07;D21H17/11;D21H21/18 |
主分类号 |
D21H17/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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