Formulations

1. A receptacle comprising a cardboard box in which is arranged a plastics container, wherein a first securement element associated with the plastics container is positioned in a gap defined by the cardboard of the box thereby to restrict movement of the container within the box;

wherein said gap is defined, at least in part, between a first flap, a second flap and a third flap of the box, wherein said first flap and said first securement element make face to face contact, with said first flap overlying said first securement element;

wherein said second flap is positioned underneath the first securement element and a lower face of the first securement element makes face to face contact with an upper face of the second flap;

wherein said third flap extends substantially parallel to said second flap and said third flap is positioned underneath the first securement element, wherein a lower face of the first securement element makes face to face contact with an upper face of the third flap;

wherein said cardboard box includes a fourth flap which extends parallel to the first flap, wherein the fourth flap does not contact the first securement element and wherein the fourth flap overlies the second and third flaps.

2. A receptacle according to claim 1 , wherein said first securement element is elongate and the width of the first securement element, measured in a direction perpendicular to the elongate extent thereof, is less than 25% of the length of the first securement element measured in the direction of the elongate extent.

3. A receptacle according to claim 1 , wherein said first securement element is an integral part of said plastics container and is positioned outside a part of said container which contains fluid in use.

4. A receptacle according to claim 1 , wherein said first securement element defines an elongate male element which is positioned in said gap and extends at least 50% along the length of a first side of the container.

5. A receptacle according to claim 1 , wherein said first securement element has a maximum thickness in the range 1 to 4 mm, a maximum length in the range 15 to 50 cm and a maximum width in the range 20 to 50 mm.

6. A receptacle according to claim 1 , wherein said first flap is pivotable between open and closed positions during opening and/or closing and/or assembly of the box.

7. A receptacle according to claim 6 , wherein said second flap is pivotable between open and closed positions during opening and/or closing and/or assembly of the box.

8. A receptacle according to claim 7 , wherein said third flap is pivotable between open and closed positions during opening and/or closing and/or assembly of the box.

9. A receptacle according to claim 1 , wherein a second securement element is associated with said plastics container and is positioned in a second gap defined by the cardboard of the box thereby to provide a further means in addition to said first securement element of restricting movement of the container within the box, wherein said second securement element is spaced from said first securement element, said first and second securement elements extend substantially parallel to one another and said first and second securement elements are diagonally opposite one another.

10. A receptacle according to claim 9 , wherein said second securement element is positioned outside a part of said container which contains fluid in the use, is a component of a unitary moulding which includes at least a part of said container which contains fluid in use and has a maximum thickness in the range 1 to 4 mm, a maximum length in the range 15 to 50 cm; and a maximum width in the range 20 to 50 mm.

11. A receptacle according to claim 9 , wherein said second gap is defined, at least in part, by a fifth flap of the box, wherein said fifth flap is pivotable between open and closed positions during opening and/or closing and/or assembly of the box, wherein said fifth flap and said second securement element make face to face contact; and

said second gap is defined, at least in part, between said fifth flap and a sixth flap of the box, wherein said sixth flap is pivotable between open and closed positions during opening and/or closing and/or assembly of the box; and

said second gap is defined, at least in part, between said fifth flap, said sixth flap, and a seventh flap of the box, wherein said seventh flap is pivotable between open and closed positions during opening and/or closing and/or assembly of the box, wherein the second securement element is positioned between and/or makes face to face contact with said fifth flap, said sixth flap and said seventh flap.

12. A receptacle according to claim 9 , wherein tape is applied to the cardboard box to facilitate retention of the first and second securement elements in said respective gaps.

13. A receptacle according to claim 1 , wherein said plastics container is not self-supporting and/or is collapsible.

14. A receptacle according to claim 1 , wherein said plastics container contains a liquid formulation which includes a colourant, wherein said liquid formulation is for addition to a plastics material in the manufacture of a plastics part, wherein said liquid formulation has a viscosity, measured using a Brookfield Viscometer at 2 rpm and 23° C., of greater than 100 cP.

15. A receptacle according to claim 1 , wherein a second securement element is associated with said plastics container and is positioned in a second gap defined by the cardboard of the box thereby to provide a further means in addition to said first securement element of restricting movement of the container within the box, wherein said first and second securement elements extend substantially parallel to one another and are diagonally opposite one another.

16. A receptacle according to claim 15 , wherein said second gap is defined, at least in part, by a fifth flap of the box, wherein said fifth flap is pivotable between open and closed positions during opening and/or closing and/or assembly of the box; and wherein said second gap is defined, at least in part, between said fifth flap and a sixth flap of the box, wherein said sixth flap is pivotable between open and closed positions during opening and/or closing and/or assembly of the box and wherein said box includes an eighth flap which extends parallel to the fifth flap and/or is pivotable about an axis defined on an opposite side of the box to that of the fifth flap.

17. A receptacle according to claim 1 , wherein the ratio of the maximum width of the first flap to the maximum width of said first securement element is in the range 1.5 to 5.

18. A receptacle according to claim 1 , wherein said plastics container includes a first opening for passage of liquid from the container, wherein said first opening has a circular cross-section and is provided with a closure which is releasably securable for closing the opening.