PROBLEM TO BE SOLVED: To provide a method for producing a tablet, and a tablet, such as carbonate spring bath agent, which allows most of emitted carbonic acid gas to dissolve into water without dissipating into the air to achieve total carbonic acid component at a high concentration within water by reacting neutralization efficiently within the tablet and generating carbonic acid gas bubbles as small as possible continuously for a fixed period of time.SOLUTION: In a method for producing a tablet by compression molding which comprises adding polyethylene glycol of 1/50-1/5, and organic acid (e.g., citric acid) of 1/20-1/3 to bicarbonate (NaHCO3 or KHCO3), Vickers hardness [HV] is 23 or more, and the tablet is produced so that a diameter and thickness of the tablet is 10 mm or more.COPYRIGHT: (C)2015,JPO&INPIT【課題】錠剤内部で効率よく中和反応を起こさせ、可能な限り小さなサイズの炭酸ガス泡を一定時間継続的に発泡させることで、発生した炭酸ガスの大部分を空気中に逃がさず水中に溶解させ、水中の総炭酸成分を高濃度にできる、炭酸泉入浴剤等の錠剤の製造方法及び錠剤の提供。【解決手段】重炭酸塩(NaHCO3又はKHCO3)に対し1/50~1/5のポリエチレングリコール及び1/20~1/3の有機酸(例えばクエン酸)を加え圧縮成型する錠剤の製造方法において、ビッカース硬さ[HV]が23以上であり、前記錠剤の直径及び厚みがそれぞれ10mm以上となるように錠剤を製造する方法。【選択図】なし
