초록 ▼

The food package includes a flexible wrapping sheet of dielectric material, such as polyester or paperboard, capable of conforming to at least a portion of the article of food\s shape. The dielectric wrapping sheet has a flexible metallic coating thereon, such as aluminum, in the form of a relativel

The food package includes a flexible wrapping sheet of dielectric material, such as polyester or paperboard, capable of conforming to at least a portion of the article of food\s shape. The dielectric wrapping sheet has a flexible metallic coating thereon, such as aluminum, in the form of a relatively thin film or relatively thick foil, the coating being subdivided into a number of individual metallic islands or pads separated by criss-crossing non-metallic gaps provided by exposed dielectric strips on the wrapping sheet. When the food package is placed in a microwave oven, some of the microwave energy passes through the wrapping sheet so as to dielectrically heat the food item, but a lesser amount of the microwave energy is converted into thermal energy by the metallic coating so as to brown or crispen that portion of the food adjacent thereto. Various degrees of microwave transparency can be incorporated into the metallic coating so that a desired or preferred amount of browning is realized by the time that the particular item of packaged food is fully heated or cooked.

대표청구항 ▼

A package containing an article of food, at least a portion thereof being capable of having either its color changed or crispened, said food article to be heated in a microwave oven, comprising a flexible dielectric material having at least a section thereof conforming generally to the shape of said

A package containing an article of food, at least a portion thereof being capable of having either its color changed or crispened, said food article to be heated in a microwave oven, comprising a flexible dielectric material having at least a section thereof conforming generally to the shape of said portion of the food article, and individual electrically resistive islands carried by said dielectric material for converting some of the microwave oven energy to heat, said electrically resistive islands also conforming generally to the shape of said portion of food and residing in a proximal relation therewith, whereby the microwave energy converted to heat by said dielectric material and islands modifies the color or crispness of the food portion adjacent thereto.