| abstract |
A self-standing packaging bag formed in a bag of stereoscopic configuration or flat configuration, comprising at least a front part and a rear part formed of a packaging material with pleats formed by folding up the material so as to be three-folded in band shape and sticking the inner surfaces of the folded portions to each other, wherein, in the state of stereoscopically opened state, the pleats formed flush with the peripheral surface parts are positioned generally perpendicular to a bottom surface part, and the pleats conceal the bottom surface part. |