Resealable lidding for rigid thermoformed tubs

A method of making a packaging structure, the method comprising:

• providing a base member defining a cavity configured to receive an item therein, the base member comprising a flange;
• providing a flexible film inner structure and a flexible film outer structure;
• forming a laminate by adhering the outer structure to the inner structure;
• scoring the outer structure to form at least one outer line of weakness defining an outer opening portion that is separable from the outer structure along the at least one outer line of weakness;
• scoring the inner structure to form at least one first inner line of weakness defining an inner opening portion that is separable from the inner structure along the inner line of weakness;
• scoring the inner structure to form at least one second inner line of weakness;
• cutting a perimeter line through both the outer structure and the inner structure of the laminate to form a lidding member, wherein the perimeter line comprises a pull tab, wherein:
• the perimeter line intersects the at least one outer line of weakness adjacent opposite sides of the pull tab;
• and
• the at least one second inner line of weakness is disposed between the pull tab and the inner opening portion;
• and
• permanently sealing the lidding member to the flange to form a seal area, wherein the at least one second inner line of weakness is disposed at least partially within the seal area.

A laminate comprising:

• an outer structure having at least one outer line of weakness;
• an inner structure having at least one first inner line of weakness and at least one second inner line of weakness;
• and
• an adhesive layer adhesively joining the outer structure and the inner structure, wherein the laminate comprises a perimeter cut line defining a pull tab,
• wherein the at least one outer line of weakness intersects the perimeter cut line adjacent opposite sides of the pull tab, the at least one outer line of weakness defining an outer opening portion that is separable from the outer structure along the outer line of weakness;
• wherein the first inner line of weakness defines an inner opening portion that is at least partially separable from the inner structure along the first inner line of weakness wherein:
• the inner opening portion is joined to the outer opening portion such that lifting the outer opening portion causes the inner opening portion to be lifted along with the outer opening portion so as to create and opening through the laminate;
• and
• a marginal region of the outer opening portion is defined between the at least one first inner line of weakness and the at least one outer line of weakness, the marginal region overlying an underlying surface of the inner structure;
• and
• wherein the at least one second inner line of weakness formed in the inner structure is disposed between the tab and the inner opening portion.