Method for fixing and treating a flexible plate on a drum and flexible plate

A method for fixing and treating a flexible plate on a drum with a plurality of vacuum suction openings, said method comprising the steps:

• providing a flexible plate comprising a support layer made of a first material and at least one additional layer made of a second material which is different from said first material, wherein one or more thin film side wings are connected to one or more sides of the flexible plate, said one or more thin film side wings having a thickness which is at least 5 times smaller than the thickness of the flexible plate, said one or more thin film side wings having a lower face which is substantially free from adhesive;
• positioning the flexible plate on the drum such that the lower face of each thin film side wing of the flexible plate covers at least one vacuum suction opening of the plurality of vacuum suction openings;
• and
• rotating the drum while applying vacuum through the plurality of vacuum suction openings, and performing a treatment on at least one layer of said at least one additional layer of the flexible plate while rotating the drum.