A durable transfer roll core may comprise an elongate body comprising a groove, the elongate body having a longitudinal axis. The groove may comprise a Groove Angle from about 0 to about 90 degrees (relative to the longitudinal axis) and the groove may comprise a Groove Depth greater than about 0.003 inches.

A spool for receiving an optical fiber including: (a) an outer cylinder portion including (i) an outer surface, (ii) an inner surface, and (iii) a thickness therebetween; and (b) a first outboard flange and a second outboard flange each extending radially outward from the outer surface of the outer cylinder portion, the first outboard flange, the second outboard flange, and the outer surface of the outer cylinder portion defining a primary barrel portion of the spool. The thickness of the outer cylinder portion is substantially constant between the first outboard flange and the second outboard flange. A method of manufacturing the same including (i) injecting molding an injection molded monolith including the first outboard flange, the second outboard flange, and the cylindrical portion therebetween, and (ii) over-molding a polymeric cushioning material over the cylindrical portion of the injection molded monolith between the first outboard flange and the second outboard flange.

A spool for receiving an optical fiber including: (a) an outer cylinder portion including (i) an outer surface, (ii) an inner surface, and (iii) a thickness therebetween; and (b) a first outboard flange and a second outboard flange each extending radially outward from the outer surface of the outer cylinder portion, the first outboard flange, the second outboard flange, and the outer surface of the outer cylinder portion defining a primary barrel portion of the spool. The thickness of the outer cylinder portion is substantially constant between the first outboard flange and the second outboard flange. A method of manufacturing the same including (i) injecting molding an injection molded monolith including the first outboard flange, the second outboard flange, and the cylindrical portion therebetween, and (ii) over-molding a polymeric cushioning material over the cylindrical portion of the injection molded monolith between the first outboard flange and the second outboard flange.

The invention relates to a reel for a winder, comprising: a mandrel (10) extending around an axis of rotation (X) of the reel, a plurality of pairs of lateral arms (20a, 20b) extending on both sides of the mandrel (10), together acting as flanks defining, between them, a winding volume for the link,
said reel being characterised in that it comprises a closed flange (40) attached to the arms (20a) constituting one of said flanks, said flange having a thickness of between 10 and 40 mm.

The invention relates to a reel for a winder, comprising: a mandrel (10) extending around an axis of rotation (X) of the reel, a plurality of pairs of lateral arms (20a, 20b) extending on both sides of the mandrel (10), together acting as flanks defining, between them, a winding volume for the link,
said reel being characterised in that it comprises a closed flange (40) attached to the arms (20a) constituting one of said flanks, said flange having a thickness of between 10 and 40 mm.

A winding core with improved beam and hoop strength and diminished friability and method for manufacturing such a core are provided, the method for making the winding core comprising: providing a wood fiber core, applying an adhesive to the wood fiber core, and sliding a tube or sheath onto the wood fiber core.

A durable transfer roll core may comprise an elongate body comprising a groove, the elongate body having an elongate body longitudinal axis. First and second ridges may be on each side of the groove and may be asymmetrical relative to the groove longitudinal axis.

A durable transfer roll core may comprise an elongate body comprising a groove, the elongate body having an elongate body longitudinal axis. First and second ridges may be on each side of the groove and may be asymmetrical relative to the groove longitudinal axis.

A corewinder (100) to form a core (200) for tissue paper logs (300) from cardboard strips (201, 202) is described, the corewinder (100) comprises an unwinding station (10) adapted to unwind two or more reels (11, 12) of a cardboard strip (201, 202); a forming station (20), placed downstream of the unwinding station (10) and adapted to spirally wind at least an upper strip (201) and a lower strip (202) being unwound from the reels (11, 12) one on the other, joining them to form a tube (203); a cutting station (30) placed downstream of the forming station (20) and configured to cut the tube (203) being formed to obtain a core (200); the corewinder (100) also comprises a dispenser assembly (40) for an adhesive film (41), configured to unwind an adhesive film (41) connectable to said upper strip (201) to obtain a core (200) at least partially covered by said adhesive film.

A process to make a core (200) at least partially covered by such an adhesive film (41) and a tissue paper log (300) comprising such a core (200) are also described.

A corewinder (100) to form a core (200) for tissue paper logs (300) from cardboard strips (201, 202) is described, the corewinder (100) comprises an unwinding station (10) adapted to unwind two or more reels (11, 12) of a cardboard strip (201, 202); a forming station (20), placed downstream of the unwinding station (10) and adapted to spirally wind at least an upper strip (201) and a lower strip (202) being unwound from the reels (11, 12) one on the other, joining them to form a tube (203); a cutting station (30) placed downstream of the forming station (20) and configured to cut the tube (203) being formed to obtain a core (200); the corewinder (100) also comprises a dispenser assembly (40) for an adhesive film (41), configured to unwind an adhesive film (41) connectable to said upper strip (201) to obtain a core (200) at least partially covered by said adhesive film.

A process to make a core (200) at least partially covered by such an adhesive film (41) and a tissue paper log (300) comprising such a core (200) are also described.