| 摘要 |
PROBLEM TO BE SOLVED: To provide a gland packing material with an outer reinforcing structure which materializes low cost by improving productivity and enhances sealability by improving retaining performance, and to provide a gland packing manufactured by using the gland packing material. SOLUTION: In the outer reinforcing structure of the gland packing material 1, a reinforcing material 20 made up of an opening sheets 2 is provided to one surface of band-like expanded graphite 3. A base material 4 made in such a manner, is successively twisted from an end in the longitudinal direction so as to direct the opening sheets 2 outward. The band-like expanded graphite 3 is covered with the opening sheets 2. A part of the opening sheets 2 and one end 5 of the width direction of the band-like expanded graphite 3 are rolled into the inside of the gland packing material 1 in a laver-rolled rice state so as to make the band-like expanded graphite 3 face a plurality of openings 20A provided to the twisted reinforcing material 20. As shown in the area L, a part of the opening sheets 2 are interposed in the band-like expanded graphite 3. COPYRIGHT: (C)2004,JPO
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