Abstract: A light-tight packaging entity includes rigid side covers (4) and a flexible light-tight covering film (3), which envelops the curved surface of a file roll (1) and is shrunk onto outer edges (5) of the side covers (4) to keep incident light away. This packaging entity makes it possible to achieve reliable protection from light with a packaging entity of small size, ensures unimpeded rewinding of the film, and enables the light-sensitive material to be handled in daylight. The present packaging entity is space-saving, capable of being rewound, leaves no packaging residues in the processing device after opening and unrolling have taken place, and in addition is simple and cost-effective.