초록 ▼

An improved light-tight package for a roll (10) of a length (14) light-sensitive material such as photographic film or paper includes an opaque leader (22) wound around the roll. Folded-over portions (48, 50) of opaque end disks (32, 34) are held in place by adhesive tape strips (44, 46). Upon unrol

An improved light-tight package for a roll (10) of a length (14) light-sensitive material such as photographic film or paper includes an opaque leader (22) wound around the roll. Folded-over portions (48, 50) of opaque end disks (32, 34) are held in place by adhesive tape strips (44, 46). Upon unrolling one embodiment of the package by pulling the leader, the end disks release from the adhesive strips without tearing; and the adhesive strips remain attached to the leader and are removed from the roll with the leader. Upon unrolling another embodiment, the end disks tear circumferentially and the torn-away portions are removed with the tape strips and the leader.

대표청구항 ▼

A light-tight package for a roll of light-sensitive web material, the roll including a core with opposite ends and a length of the web wound about the core; the roll having end surfaces at the opposite ends of the core and the length having a first width and a leading end; the package including a fl

A light-tight package for a roll of light-sensitive web material, the roll including a core with opposite ends and a length of the web wound about the core; the roll having end surfaces at the opposite ends of the core and the length having a first width and a leading end; the package including a flexible opaque leader wound about the roll through at least a first convolution, the leader having a trailing end attached to the leading end, a second width substantially equal to the first width, an outer surface, a length greater than a circumference of the roll and opposite lateral edges separated by the second width; pair of flexible opaque end disks for covering the end surfaces, a central portion of each end disk being attached to the core and a peripheral portion of each end disk being folded over a circumferential edge of the first convolution of the leader, each folded over portion having an outer surface and a circumferential edge, wherein the improvement comprises: at least one strip of adhesive tape, the strip being adhered to the outer surface of each of the folded over peripheral portions and to the outer surface of the leader.