Gable-top packaging container

A method of producing a gable-top paper or paper-board based packaging container having a plurality of top-closure sub-panels including a top-closure sub-panel configured to form a pouring spout of the packaging container when the packaging container is in an open position, the top-closure sub-panel configured to form a pouring spout comprising top-fin panel sections being at least partially hot-sealed to each other prior to a first opening of the packaging container, the top-fin panel sections abutting one another in a contact region when the packaging container is in a closed position, the method comprising the steps of:

• producing a blank from a laminate packaging material having an outside heat sealable layer;
• and
• treating the outside heat sealable layer in a sub-region of at least one of said top-fin panel sections reducing or eliminating the heat-sealing capacity of the outside heat sealable layer in the sub-region,
• wherein said step of treating the outer heat sealable layer comprises coating said sub-region with an abhesive layer,
• wherein said step of coating said sub-region comprises printing said abhesive layer onto the sub-region,
• wherein said step of printing said abhesive layer comprises flexographically printing and UV curing an ink onto said sub-region, and
• wherein said step of flexographically printing said abhesive layer comprises utilising a halftone reprographic technique.