Packaging, and a mould and a method for making the packaging

A packaging according to any of the preceding claims, characterised in said lid (10) being injection moulded.

A packaging according to any of the preceding claims, said projections (8) being substantially identical, or identical, in shape and being uniformly distributed on said surfaces.

A packaging according to any of the preceding claims, said peripheral sealing area (A) being inside said side wall (46).

A packaging according to the preceding claim, said projections (8) on said side wall (46) being formed solely in the area extending from said peripheral sealing area (A) towards said bottom (42).

A packaging according to any of the preceding claims, said container having a central axis (C) extending essentially perpendicular to said bottom (42), said peripheral side wall (46) being conical and sloping at an angle with respect to said central axis (C) of 0,2°-5°, preferably 1°-3°, with the container (40) having the smaller radius at said bottom (42).

A packaging according to any of the preceding claims, said projections (8) on said side wall (46) being generally orientated in the direction of said central axis (C).

A packaging according to any of the preceding claims, said side wall (46) recesses (9) having a depth (R) of 0,1 mm-0,70 mm, preferably 0,1 mm 0,35 mm.

A packaging according to the preceding claim, said recesses (9) all having essentially the same depth (r), or the same depth.

A packaging according to any of the preceding claims, said projections (8) having a barb-like configuration.

A mould for the injection moulding of a paint container (40) having a bottom and a peripheral side wall (46) extending from said bottom and defining opposite said bottom a peripheral rim, said side wall having peripheral connecting means for attaching a plastic lid to the container, said mould including a female part and a cylindrical or conical male part (100) for defining an injection mould cavity, characterised in said male part (100) having a peripheral first surface defining the inside surface of said peripheral side wall, said first surface (110) having a plurality of indentations (9) along the periphery for forming projections (8) on said peripheral side wall (46) during said injection moulding.

A mould according to the preceding claim, said indentations (9) all having the same depth, or essentially the same depth.

A method of making a container having a bottom and a peripheral side wall extending from said bottom and defining opposite said bottom a peripheral rim, said side wall having connecting means for attaching said plastic lid to said container in a tight relationship, said lid and said side wall tightly abutting each other in a peripheral sealing area adjacent said rim when said lid is attached to said container, characterised in the lid and the side wall (46) having on the surfaces thereof facing the inside of the packaging a number of projections, said projections (8) on said side wall defining a number of side wall recesses (9) and being integrally formed in the injection moulding process by the plastic material forming the container side wall flowing into mould recesses (9) formed in said injection mould.