A box suitable for the packaging of a consumer product is formed by helically wrapping an elongated continuous strip of material around a mandrel to form a main body with a plurality of bands. In one embodiment, adjacent bands partially overlie one another to form a multi-paneled main body with an open top end and an open bottom end. An adhesive is disposed within the region of contact between adjacent bands to retain the shape of the main body. First and second sets of slots are formed in the main body to create flaps dimensioned to selectively enclose the open top and bottom ends, respectively. To define the flaps and promote pivotal articulation, the main body is also preferably provided with score lines. By adjusting the configuration of the mandrel, a customized box can be constructed that is sized to receive a consumer product with limited wasted space.

A method for manufacturing straws includes the steps of predisposing a web or a discrete sheet of sheet material, wherein the web or discrete sheet extends between an end portion and tail portion; predisposing a winding body extending along an axis; completely winding the web or discrete sheet around the winding body for defining a cylindrical body of sheet material wherein the end portion and tail portion face each other for defining a mutual overlapping portion; and constraining the end portion to the tail portion in the mutual overlapping portion in order to define a straw extending between a first and second substantially circular free edges, wherein the mutual overlapping portion extends between the first and second free edges of the straw along a rectilinear direction.

A method for manufacturing straws includes the steps of predisposing a web or a discrete sheet of sheet material, wherein the web or discrete sheet extends between an end portion and tail portion; predisposing a winding body extending along an axis; completely winding the web or discrete sheet around the winding body for defining a cylindrical body of sheet material wherein the end portion and tail portion face each other for defining a mutual overlapping portion; and constraining the end portion to the tail portion in the mutual overlapping portion in order to define a straw extending between a first and second substantially circular free edges, wherein the mutual overlapping portion extends between the first and second free edges of the straw along a rectilinear direction.

A plastic film roll includes: a convolute cardboard tube including a tubular body having a tubular body wall formed by a plurality of layers of a straight rolled cardboard sheet having a weight equal to or less than 300 gsm; a plastic film wound about the convolute cardboard tube to form a plurality of plastic film windings around the convolute cardboard tube, the plastic film windings creating a radial compression force equal to or greater than 10 bar on the tubular body wall, wherein the cardboard sheet includes a plurality of fibers, at least a majority of the fibers being substantially aligned in a tangential direction relative to the tubular body to allow the convolute cardboard tube to resist the radial compression force.

The invention relates to a polygonal container comprising a tubular polygonal body (10) with an even number of flat faces (11) numbering more than four, which is formed by a strip of corrugated cardboard (19) rolled up at least two full turns and adhered to itself by means of lines of glue (30) transverse to the channels of the corrugated cardboard, forming a multilayer wall (13); a base body (20) defined by a base panel of cut and folded stiff double-faced corrugated cardboard (24) attached around an end portion of the tubular polygonal body (10). The method comprises forming the tubular polygonal body by means of rolling the strip of corrugated cardboard around a polygonal rotary drum (51) and subsequently attaching to a base body (20).

A box suitable for the packaging of a consumer product is formed by helically wrapping an elongated continuous strip of material around a mandrel to form a main body with a plurality of bands. In one embodiment, adjacent bands partially overlie one another to form a multi-paneled main body with an open top end and an open bottom end. An adhesive is disposed within the region of contact between adjacent bands to retain the shape of the main body. First and second sets of slots are formed in the main body to create flaps dimensioned to selectively enclose the open top and bottom ends, respectively. To define the flaps and promote pivotal articulation, the main body is also preferably provided with score lines. By adjusting the configuration of the mandrel, a customized box can be constructed that is sized to receive a consumer product with limited wasted space.

A box suitable for the packaging of a consumer product is formed by helically wrapping an elongated continuous strip of material around a mandrel to form a main body with a plurality of bands. In one embodiment, adjacent bands partially overlie one another to form a multi-paneled main body with an open top end and an open bottom end. An adhesive is disposed within the region of contact between adjacent bands to retain the shape of the main body. First and second sets of slots are formed in the main body to create flaps dimensioned to selectively enclose the open top and bottom ends, respectively. To define the flaps and promote pivotal articulation, the main body is also preferably provided with score lines. By adjusting the configuration of the mandrel, a customized box can be constructed that is sized to receive a consumer product with limited wasted space.

A mandrel designed for use in the construction of a custom-sized box includes a common platform on which a plurality of peripheral members is independently mounted. Each peripheral member comprises a disc-shaped base rotatably mounted on the common platform, a tongue slidably mounted within a channel formed in the base, and a vertical upright rotatably mounted at one end of the tongue. To construct a box, an elongated continuous strip of material is helically wrapped around the vertical uprights to form a main box body with a plurality of bands. Cutting mechanisms in each upright are actuated to create slots in the main box body that define flaps used to selectively enclose the open top and bottom ends of the box body. By reconfiguring the vertical uprights in the mandrel, a customized box can be constructed that is dimensioned to receive a consumer product with limited wasted space.

The invention relates to a polygonal container comprising a tubular polygonal body (10) with an even number of flat faces (11) numbering more than four, which is formed by a strip of corrugated cardboard (19) rolled up at least two full turns and adhered to itself by means of lines of glue (30) transverse to the channels of the corrugated cardboard, forming a multilayer wall (13); a base body (20) defined by a base panel of cut and folded stiff double-faced corrugated cardboard (24) attached around an end portion of the tubular polygonal body (10). The method comprises forming the tubular polygonal body by means of rolling the strip of corrugated cardboard around a polygonal rotary drum (51) and subsequently attaching to a base body (20).

A box suitable for the packaging of a consumer product is formed by helically wrapping an elongated continuous strip of material around a mandrel to form a main body with a plurality of bands. In one embodiment, adjacent bands partially overlie one another to form a multi-paneled main body with an open top end and an open bottom end. An adhesive is disposed within the region of contact between adjacent bands to retain the shape of the main body. First and second sets of slots are formed in the main body to create flaps dimensioned to selectively enclose the open top and bottom ends, respectively. To define the flaps and promote pivotal articulation, the main body is also preferably provided with score lines. By adjusting the configuration of the mandrel, a customized box can be constructed that is sized to receive a consumer product with limited wasted space.