发明名称 |
PAPER FOR NEWSPAPER AND METHOD FOR PRODUCING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To obtain a paper for newspaper causing neither print through nor reduction in paper strength even in being lightened, having excellent opacity and paper strength and economic efficiency. SOLUTION: This paper for newspaper comprises white carbon and calcium carbonate so as to have the ratio of SiO2 to CaO in an atomic absorption spectroscopy of ash at 550 deg.C defined by JIS P 8128 is 9:1-5:5.
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申请公布号 |
JP2002201590(A) |
申请公布日期 |
2002.07.19 |
申请号 |
JP20000400959 |
申请日期 |
2000.12.28 |
申请人 |
DAIO PAPER CORP |
发明人 |
NINOMIYA SEIKICHI;TAMAI AKIO |
分类号 |
D21H17/67;(IPC1-7):D21H17/67 |
主分类号 |
D21H17/67 |
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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