| 摘要 |
A CONTAINER PAPER BOARD FOR CONTAINING ELECTRONIC CHIPS IN WHICH GENERATION OF FLUFF ON INSIDE FACE OF CONCAVITIES IN WHICH THE ELECTRONIC CHIPS ARE CONTAINED OR WHEN A TOP COVER TAPE IS PEELED OFF FROM THE BASE PAPER BOARD IS ZERO OR VERY LITTLE, COMPRISES A BASE PAPER BOARD, HAVING A MULTI-LAYERED PAPER BOARD STRUCTURE, WHEREIN A PULP PREPARED BY DISINTEGRATING THE BASE PAPER BOARD HAS A PULP FIBER LENGTH DISTRIBUTION COEFFICIENT OF 1.20 TO 3.20, DETERMINED BY THE PULP FIBER LENGTH-DETERMINATION METHOD INCLUDING AN AUTOMATED OPTICAL METHOD, IN ACCORDANCE WITH JAPAN TAPPI NO. 52.
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