SEAMLESS CAN BODY, AND MANUFACTURING METHOD OF SEAMLESS CAN BODY

To provide a seamless can body exhibiting excellent pressure-resistance performance, and to provide a manufacturing method of the seamless can body.SOLUTION: A seamless can body according to the present invention comprises a cylindrical trunk part, a peripherally shaped ground part continued from a lower end of the cylindrical trunk part, and a raised bottom part continued toward a central axis side from the peripherally shaped ground. When an outside face surface area of the raised bottom part is defined as AD and an area of a virtual plane with the peripherally shaped ground part as a contour is defined as AB, the relation of 1.55≥(AD/AB)≥1.40 is satisfied.SELECTED DRAWING: Figure 1 【課題】優れた耐圧性能を備えるシームレス缶体及びその製造方法を提供する。【解決手段】本発明のシームレス缶体は、筒状胴部と、前記筒状胴部の下端から連なる周状接地部と、前記周状接地部から中心軸側に向かって連なる上げ底部と、を含み、前記上げ底部の外面表面積をＡＤ、前記周状接地部を輪郭とする仮想平面の面積をＡＢ、とそれぞれ規定したとき、１．５５≧（ＡＤ／ＡＢ）≧１．４０の関係を満たす。【選択図】図１