Induction heat sealable closure liner or lidding configured for paper recycling stream

An induction heat-sealable closure liner or lidding configured for recycling in a paper recycling stream, the liner or lidding having a composite layer structure comprising:

• a paperboard layer;
• a metal foil layer for inductive heating;
• and
• a heat sealant coating;
• wherein the paperboard layer is white paperboard or brown paperboard,
• for white paperboard the paperboard layer has a pulp weight of at least 85% by weight based on the total weight of the composite layer structure, and for brown paperboard the paperboard layer has a pulp weight of at least 90% by weight based on the total weight of the composite layer structure
• the remaining weight percent of the composite layer structure comprising the metal foil layer and heat sealant coating are such that the total composite layer structure is recyclable in a paper recycling stream, wherein repulping of the composite layer structure achieves a pulp yield of at least 80% by weight of the paperboard layer for white paperboard and at least 85% for brown paperboard,
• the metal foil layer has a basis weight in a range of 10 to 55 pounds per ream, where a ream comprises 3000 square feet, and
• the metal foil layer has a thickness of 1 mil or less.