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.

A barrel formed from a sheet of blank material includes a plurality of side wall panels for forming sides of the barrel including a front panel, a rear panel, two opposing end panels, and at least one diagonal corner panel, at least one bottom flap for forming a bottom of the barrel, and a plurality of top flaps for forming a top of the barrel including a top front flap foldably connected to the front panel, a top rear flap foldably connected to the rear panel, and two opposing top end flaps each foldably connected to one of the end panels. The top front flap and the top rear flap include at least one closure slot. Each of the two opposing top end flaps includes at least one locking finger. The locking fingers are inserted within the closure slots for securing the top of the barrel in a closed position.

There is provided a method for repairing a member comprising a fiber-reinforced plastic, which method can repair a through hole easily at a low cost. When a through hole 20 is repaired, a temporary hole 11 is formed, a fabric sheet 30 comprising reinforcing fibers is rolled into a cylindrical shape and inserted into the temporary hole 11, the fabric sheet 30 is impregnated with a resin, the resin is cured, and a new through hole 20 is formed.

Apparatus (10) for automatically producing tubular elements (100) to make smoking articles and/or products for food use, comprising at least one forming unit (12) configured to form the tubular elements (100) starting from shaped flat sheets (101). The forming unit (12) comprises one or more forming devices (29) which are moved by movement means (30) along a work path (PL) closed in a loop, in order to form the tubular elements (100).

The present disclosure is directed to a fibrous core comprising a fluted layer; and a liner disposed on the fluted layer. The fluted layer and the liner are helically wound defining a longitudinal core axis.

The present disclosure is directed to a fibrous core comprising a fluted layer; and a liner disposed on the fluted layer. The fluted layer and the liner are helically wound defining a longitudinal core axis.

An apparatus for automatically producing tubular elements to make smoking articles and/or products for food use includes at least one forming unit configured to form the tubular elements starting from shaped flat sheets. The forming unit includes one or more forming devices which are moved by movement means along a work path closed in a loop, in order to form the tubular elements.