Coated paper

A coated paper comprising a base paper and at least three coatings applied thereto, wherein the at least three coatings, proceeding from the base paper, in this sequence, comprise a first hydrophobic barrier layer comprising at least one hydrophobic polymer, a second hydrophilic barrier layer comprising at least one hydrophilic polymer, and a third hydrophobic barrier layer comprising at least one hydrophobic polymer, wherein the at least one hydrophobic polymer contained in the third barrier layer is a thermoplastic polymer, and so the third barrier layer is thus heat-sealable, wherein a pre-coat comprising at least one inorganic pigment and a polymer binder is provided between the base paper and the first barrier layer, and wherein the at least one inorganic pigment comprises a silicate, wherein the coated paper has a sealed-seam strength of from 1.5 N/15 mm to 10 N/15 mm, wherein the sealed-seam strength is determined for the coated paper as follows:

• the coated paper is sealed at 3.3 bar for 0.3 seconds in a temperature range of from 100° C. to 200° C. transversely to the direction of the paper web and the sealed-seam strength is determined in accordance with DIN 55529 (2012).