Sliding lid for food container

1. A sliding lid for an associated food container having first and second flanged edge portions on opposing sides of an opening, the sliding lid comprising:

a main lid panel having first and second flange-receiving channels configured to slidably receive the flanged edge portions of the container from an open position in which the opening of the container is uncovered to a closed position in which the main lid panel covers the opening of the container, the first and second flange-receiving channels being configured to retain the lid on the container; and

a backstop provided between the two flange-receiving channels, the backstop being configured to restrict further sliding of the lid beyond the closed position, wherein the backstop comprises a stopping portion and a backstop guide, wherein said backstop guide is configured to direct a third edge portion of the container extending between the first and second flanged-edge portions towards the stopping portion of the backstop as the lid is slid towards the closed position.

2. The sliding lid of claim 1 , wherein the backstop stopping portion comprises a third flange-receiving channel configured to slidably receive a flanged edge of the third edge portion of the container to thereby restrict further sliding of the lid beyond the closed position, wherein the backstop guide is configured to direct the flanged edge of the third edge portion of the container into the third flange-receiving channel.

3. The sliding lid of claim 1 , wherein the lid further comprises a front flap extending from the main lid panel and a first fold line positioned between the front flap and the main lid panel, the first fold line extending at least part of the way between the first and second flange-receiving channels, the front flap having a front flap open position when folded in a first sense along said first fold line such that sliding of the first and second flanged edge portions of the container into, out of and along the first and second flange-receiving channels between the open and closed positions is permitted, the front flap also having a front flap closed position when folded in a second opposite sense along said first fold line, in which sliding of the lid from the closed position to the open position is restricted.

4. The sliding lid of claim 3 , wherein the main lid panel further comprises a second fold line extending at least part of the way between the first and second flange-receiving channels, the second fold line being set back from the first fold line towards the backstop.

5. The sliding lid of claim 3 , wherein the front flap comprises a main flap portion and a front tab, wherein a force applied to the front tab in the first sense causes the front flap to move towards the front flap open position, and wherein a force applied to the front tab in the second sense causes the front flap to move towards the front flap closed position.

6. The sliding lid of claim 1 , wherein each of the first and second flange-receiving channels comprises a line of adhesive extending longitudinally within the respective channel.

7. A kit of parts comprising the sliding lid of claim 1 and a food container having first and second flanged edge portions on opposing sides of an opening.

8. A sliding lid for an associated food container having first and second flanged edge portions on opposing sides of an opening, the sliding lid comprising:

a main lid panel having first and second flange-receiving channels configured to slidably receive the flanged edge portions of the associated container from an open position, in which the opening of the container is uncovered, to a closed position, in which the main lid panel covers the opening of the container, the first and second flange-receiving channels being configured to retain the lid on the container, a front flap extending from the main lid panel and a first fold line positioned between the front flap and the main lid panel, the first fold line extending at least partway between the first and second flange-receiving channels, the front flap having a front flap open position when folded in a first sense along said first fold line such that sliding of the first and second flanged edge portions of the container into, out of and along the first and second flange-receiving channels between the open and closed positions is permitted, the front flap also having a front flap closed position when folded in a second opposite sense along said first fold line, in which sliding of the lid from the closed position to the open position is restricted, wherein each of the first and second flange-receiving channels comprises a line of adhesive extending longitudinally within the channel.

9. The sliding lid of claim 8 , wherein the main lid panel further comprises a second fold line extending at least partway between the first and second flange-receiving channels, the second fold line being set back from the first fold line towards a backstop.

10. The sliding lid of claim 8 , wherein the front flap comprises a main flap portion and a front tab, wherein a force applied to the front tab in the first sense causes the front flap to move towards the front flap open position, and wherein a force applied to the front tab in the second sense causes the front flap to move towards the front flap closed position.

11. A kit of parts comprising the sliding lid of claim 8 and a food container having first and second flanged edge portions on opposing sides of an opening.