Package having collar enclosure

A food package, comprising:

• a tray formed from a single piece of resilient material having generally flat peripheral flanges located in a reference plane and defining the periphery of the tray and internal flanges also located in the reference plane, a plurality of recessed compartments, each compartment surrounded by certain ones of said flanges and extending from the reference plane downwardly to form a product receiving recess, and including a food product in at least some of said compartments, the tray having at least one pair of said peripheral flanges located along opposed parallel edges of the tray, the bottoms of the compartments closest to said one pair of peripheral flanges being spaced inwardly from lateral planes through the opposed parallel edges and perpendicular to said reference plane,
• a thin flexible transparent film covering the tray in said reference plane and attached to the flanges to airtightly seal at least some of the respective recessed compartments,
• a stiff collar wrapped completely around the tray, said collar including a top adjacent the reference plane, a pair of sides extending from the top towards the bottom of the tray and a bottom adjacent the bottom of the tray, portions of the sides extending inwardly towards said bottom of the collar such that at least one of said sides forms an acute angle with the top of the collar such that the two said sides, taken together, frictionally engage the opposed parallel edges of the tray, the width of the collar being less than the width of the package in the direction parallel to said opposed parallel edges, such that the food contents of at least some of the recessed compartments of the tray on both sides of the collar are visually exposed through the exposed thin flexible film,
• the frictional engagement between the collar and the opposed parallel edges of the tray, caused by the frictional engagement of the said sides with the opposed parallel edges, together with the width of the tray in the direction parallel to said parallel edges is such that the collar normally remains frictionally retained on the tray,
• and wherein the opposed pair of parallel edges include skirts connected to the peripheral flanges along those edges and extending downwardly therefrom, the engagement between said collar sides and said tray bending said skirts inwardly.