Abstract: A paper container having a top portion (4) that is tightly closed by bonding together opposing surfaces of first top sealing panels (20) and opposing surfaces of second top sealing panels (22), and each of side panels (16) is folded along a first side panel folding line (26) and a second side panel folding line (27) to form a flap (35) having a substantially triangular shape. The top portion (4) is formed by folding down the flaps (35) onto right and left side surfaces of a tubular body (3) through mountain-folding along front-side top panel vertical folding lines (17), front-side top panel vertical folding lines (18), and front-side top sealing vertical folding lines (23), and through valley-folding along second top portion horizontal folding lines (15) and back-side top sealing vertical folding lines (24).

Abstract: To obtain a paper container, which allows an upper end portion of a body panel to be reliably dented at the time of unsealing of the paper container so as to be easily unsealed, on the body panel (7), a first auxiliary folding line (43) having a downwardly curved shape is formed to have end portions (41, 42) arranged so as to connect the reference points (40) to each other, or connect together positions that are near the reference points (40) on the body vertical folding lines (3, 4) or positions that are away from the body vertical folding lines (3, 4) and below the reference points (40) in a height direction of each of the body vertical folding lines.

Abstract: A paper container having a top portion (4) that is tightly closed by bonding together opposing surfaces of first top sealing panels (20) and opposing surfaces of second top sealing panels (22), and each of side panels (16) is folded along a first side panel folding line (26) and a second side panel folding line (27) to form a flap (35) having a substantially triangular shape. The top portion (4) is formed by folding down the flaps (35) onto right and left side surfaces of a tubular body (3) through mountain-folding along front-side top panel vertical folding lines (17), front-side top panel vertical folding lines (18), and front-side top sealing vertical folding lines (23), and through valley-folding along second top portion horizontal folding lines (15) and back-side top sealing vertical folding lines (24).

Abstract: A paper container includes a body front panel (5), a body left side panel (6), a body right side panel (8), and a body back panel (7), which are contiguous through body vertical folding lines. A vertical direction sealing panel (25) is configured to form a quadrangular tubular body (26). A top portion (28) has an inclined surface (S) which is lower on the body front panel side and higher on the body back panel side. The inclined surface has an opening, and a spout is provided at the opening. The body vertical folding line through which the body front panel and the body right side panel are contiguous with each other and the body vertical folding line through which the body front panel and the body left side panel are contiguous with each other are approximately symmetrical bent lines bent toward a center of the body front panel.

Abstract: A paper container includes a body front panel (5), a body left side panel (6), a body right side panel (8), and a body back panel (7), which are contiguous through body vertical folding lines (1), (2), (3), and (4). A vertical direction sealing panel (25) is configured to form a quadrangular tubular body (26). The body vertical folding line (1) and the body vertical folding line (2) are approximately symmetrical bent lines bent toward a center of the body front panel (5), and the body vertical folding line (3) through which the body back panel and the body left side panel are contiguous with each other and the body vertical folding line (4) through which the body back panel and the body right side panel are contiguous with each other are approximately symmetrical bent lines bent toward a center of the body back panel.

Abstract: A paper container with a stopper includes: a container main body (9) including a body (6) having a square tubular shape, a bottom (7), and a flat top (8); and a stopper (10) provided on the top. The stopper is positioned adjacent to a first top corner portion (11(A)) of the top. The body includes a first recessed portion (16) formed in a first body corner portion (12(A)) and surrounded by two recessed-portion forming folding line portions (14, 15) extending from a starting point (S) located at the first top corner portion or at a position slightly away from the first top corner portion, branching from the starting point (S) so as to extend toward the bottom direction, and joining together at an end point (E) positioned within a range in which the two recessed-portion forming folding line portions extend until after reaching a first bottom corner portion (13(A)).

Abstract: A paper container includes a body front panel (5), a body left side panel (6), a body right side panel (8), and a body back panel (7), which are contiguous through body vertical folding lines (1), (2), (3), and (4). A vertical direction sealing panel (25) is configured to form a quadrangular tubular body (26). The body vertical folding line (1) and the body vertical folding line (2) are approximately symmetrical bent lines bent toward a center of the body front panel (5), and the body vertical folding line (3) through which the body back panel and the body left side panel are contiguous with each other and the body vertical folding line (4) through which the body back panel and the body right side panel are contiguous with each other are approximately symmetrical bent lines bent toward a center of the body back panel.

Abstract: A swing-open type package has a box body (10), a lid (12) to be put onto the box body (10) from above, and a swing device connecting the lid (12) and the box body (10), the swing device including a movable rear wall portion (36) formed by a part of a rear wall of the box body (10), and a support flap (44) connecting the lid (12) and a transverse wall (21) of the box body (10), and enables a swing motion of the lid (12) when a front wall of the lid (12) is raised from the boxy body (10) so that the swing motion causes the lid (12) to tilt and open wide.

Abstract: A swing-open type package has a box body (10), a lid (12) to be put onto the box body (10) from above, and a swing device connecting the lid (12) and the box body (10), the swing device including a movable rear wall portion (36) formed by a part of a rear wall of the box body (10), and a support flap (44) connecting the lid (12) and a transverse wall (21) of the box body (10), and enables a swing motion of the lid (12) when a front wall of the lid (12) is raised from the boxy body (10) so that the swing motion causes the lid (12) to tilt and open wide.