초록 ▼

A container body with a container opening and a flap partially secured to the container body and completely covering the container opening is disclosed. The flap is secured to the container by a hinge or fold line and formed from the same substrate as the container body. The container body contains

A container body with a container opening and a flap partially secured to the container body and completely covering the container opening is disclosed. The flap is secured to the container by a hinge or fold line and formed from the same substrate as the container body. The container body contains a first magnetic region adjacent to and surrounding the perimeter of the container opening. The flap contains a second magnetic region aligned with and opposite the container body's first magnetic region. The first and second magnetic regions are magnetically attracted to each other. The flap is held in a closed position by magnetic attraction between the flap's magnetic region and the container body's magnetic region.

대표청구항 ▼

1. A method of forming a container blank comprising the steps of: providing a substrate; cutting said substrate to form at least two side panels, two end panels; at least one glue panel extending from at least one end panel, at least two top panels, at least one bottom panel, and a plurality of

1. A method of forming a container blank comprising the steps of: providing a substrate; cutting said substrate to form at least two side panels, two end panels; at least one glue panel extending from at least one end panel, at least two top panels, at least one bottom panel, and a plurality of dust panels secured to said plurality of top and bottom panels; forming an aperture on a first top panel; forming a moveable flap on a second top panel wherein said moveable flap is aligned with and larger than said aperture; securing a first ferrite material around the external perimeter of said aperture on the external side of said container; securing a second ferrite material around the interior perimeter of said moveable flap and on the opposite side of the substrate from said first ferrite material; generating a first magnetic field in said first ferrite material; generating a second and opposite magnetic field in said second ferrite material; forming fold lines between said plurality of panels; folding said plurality of panels to form a container wherein said moveable flap is aligned with and covers said aperture in a closed position and wherein said second ferrite material is secured to said first ferrite material by magnetic attraction. 2. The method of claim 1, wherein said first and second ferrite materials are fanned from non-polarized gaskets.3. The method of claim 1, wherein said first and second ferrite materials are formed from ink containing metallic particles.4. The method of claim 3, wherein said ferrite regions materials are formed by printing said ink and passing the printed substrate through one or more nips formed between hard rolls covered with a release coating, wherein said ink is in a elastic state when passing through the nips.5. The method of claim 4, wherein said hard rolls are constructed from a ferromagnetic material and are provided with electromagnetic coils to generate a strong magnetic field oriented normal to the plane of said substrate so as to induce a degree of magnetic anisotropy within said ferrite materials, thus enhancing their magnetic properties.6. A method of forming a container comprising the steps of: providing a substrate; cutting said substrate to form at least two side panels, two end panels; at least one glue panel extending from at least one end panel, at least two top panels, at least one bottom panel, a least one moveable flap, and a plurality of dust panels secured to said plurality of top and bottom panels; forming an aperture on a first end panel; forming a moveable flap from said substrate wherein said moveable flap is aligned with and larger than said aperture; securing a first ferrite material around the external perimeter of said aperture on the external side of said container; securing a second ferrite material around the interior perimeter of said moveable flap and on the opposite side of the substrate from said first ferrite material; generating a first magnetic field in said first ferrite material; generating a second and opposite magnetic field in said second ferrite material; forming fold lines between said plurality of panels; folding said plurality of panels to form a container wherein said moveable flap is aligned with and covers said aperture in a closed position and wherein said second ferrite material is secured to said first ferrite material by magnetic attraction.