Paper container for photo-sensitive materials and package of photo-sensitive materials

Abstract

A die-cut sheet having score lines and cutouts which in the form of a sheet of multilayered paperboard including at least two paper layers on the outer and inner sides that are made of different materials, that use a starch-based adhesive, preferably a cornstarch-based adhesive and that each have a basis weight of at least 150 g/m2 is shaped into a box. The die-cut sheet is preferably in the form of a sheet of double-faced or double-wall corrugated board including 30 to 55 flutes/30 cm at a height of 2.3 to 5 mm and a takeup ratio of 1.30 to 1.65, with the liner and the medium having basis weights of 150 to 350 g/m2 and 120 to 200 g/m2, respectively. The box can be used as a paper container for photo-sensitive materials. Despite its use of waste paper, the box controls the possible adverse effects on the photographic properties of the contents, thereby allowing for effective control of the occurrence of damage and the generation of burrs of paper fragments and paper dust during the manufacturing, storage and shipment stages. In addition, using the starch-based adhesive of high bond strength, the box can be stored satisfactorily for a prolonged period.

Dependencies are inferred from the claim text.