| 摘要 |
The present invention provides a method for producing a tire casing and a tire having improved low-heat-generation property and durability. The method for producing a tire casing comprises vulcanizing a casing portion comprising a belt portion composed of multiple belt layers, a side portion and a bead portion, and includes at least one compounding method selected from the following (a), (b) and (c): (a) in which carbon black having a nitrogen adsorption specific surface area of from 25 to 99 m 2 /g as defined in JIS K 6217-2:2001 is incorporated in the coating rubber composition for the outermost belt layer in the belt portion, in an amount of from 30 to 60 parts by mass per 100 parts by mass of the rubber component therein; (b) in which the belt portion is composed of at least three belt layers, and carbon black having a nitrogen adsorption specific surface area of from 25 to 99 m 2 /g as defined in JIS K 6217-2:2001 is incorporated in the coating rubber composition for at least one belt layer in the belt portion, in an amount of from 40 to 60 parts by mass per 100 parts by mass of the rubber component therein; (c) in which the casing portion includes a carcass ply, and carbon black having a nitrogen adsorption specific surface area of from 25 to 90 m 2 /g as defined in JIS K 6217-2:2001 is incorporated in the coating rubber composition for the carcass ply, in an amount of from 40 to 60 parts by mass per 100 parts by mass of the rubber component therein. |
