PURPOSE: To obtain a formed article having excellent shape-retaining strength in a room-temperature environment and even in unburned state by adjusting borax or a mixture of borax and a granular material to a specific water content.
CONSTITUTION: This formed article is produced by adjusting the water-content of borax or a mixture of borax and a granular material to a water-content of 10-25%. A formed article having excellent shape-retaining strength represented by a flexural strength of ≥20MPa can be produced by a dry-forming process by adjusting the water-content of a borax-containing formed article to 10-25% and solidifying the borax. After adjusting the water-content to 10-25%, the water-content is maintained within the above range even by leaving standing in a room-temperature environment and the flexural strength is maintained to ≥20MPa even in unburned state. The article formed by this process can be used as an interior decoration, clay pigeon for trapshooting, tee for golf, etc.
SHINKAI SEIJI
MURAGUCHI YUKITO
