| 摘要 |
PROBLEM TO BE SOLVED: To efficiently make a thickness adjusting material of a document file. SOLUTION: A front plate 11 and a back plate 12 opposite to the front plate 11 form a part of a bag. In the bag-shaped document file 10 thus formed, the thickness adjusting material 20 is fitted between a first ear part 18 provided continuously to the front plate 11 and a second ear part 18 provided continuously to the back plate 12. The thickness adjusting material 20 has a plurality of corrugated paper sheets 22 being stacked and a tubular member 21 covering the corrugated paper sheets. The tubular member 21 is made of paper and the corrugated paper sheets 22 are shaped like strips. COPYRIGHT: (C)2003,JPO
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