| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a corrugating medium for a high-quality corrugated board which is especially excellent in water resistance and strength and producible over a long time without stopping a paper machine immediately after the papermaking process, and suppresses the generation of insoluble waste stuff to prevent the accumulation of the stain in the process. Ž<P>SOLUTION: The corrugating medium is formed of a raw pulp obtained from a defibrated pulp defibrated in conformity to JIS P 8220 by classifying or beating the pulp in a manner to attain a Canadian standard freeness of 180-350 ml in conformity to JIS P 8121, a functional treating agent at least containing a waterproofing agent is applied to at least one surface of the base paper during the drying step and before and after the drying step, and the corrugating medium has a Stoeckigt sizing degree of 0.001-0.05 sec/(g/m<SP>2</SP>) per unit basis weight in conformity to JIS P 8122 and a Dennison wax value of 7A or over in conformity to JIS P 8129. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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