초록 ▼

A coating sheet material is provided for wrapping, packaging or shipping food articles that are to be heated in a microwave oven. The sheet is formed from a paper or paperboard backing which is thermally and dimensionally stable when exposed to microwave energy. On at least one surface is provided a

A coating sheet material is provided for wrapping, packaging or shipping food articles that are to be heated in a microwave oven. The sheet is formed from a paper or paperboard backing which is thermally and dimensionally stable when exposed to microwave energy. On at least one surface is provided a smooth supercalendared surface or the sheet is treated by processing as with a filler coating to fill the voids between the paper fibers and to thereby present a smooth surface. A microwave interactive layer is applied to the smoothed surface from a fluid or vapor state. The interactive coating can comprise carbon, a semiconductive metal coating or other microwave interactive material.

대표청구항 ▼

A coated microwave heating sheet for wrapping, packaging or shipping food products that are to be hated thereby in a microwave oven comprising, a base sheet formed from a microwave transparent fibrous cellulose sheet that is thermally, dielectrically and dimensionally stable when exposed to microwav

A coated microwave heating sheet for wrapping, packaging or shipping food products that are to be hated thereby in a microwave oven comprising, a base sheet formed from a microwave transparent fibrous cellulose sheet that is thermally, dielectrically and dimensionally stable when exposed to microwave energy in a microwave oven, preconditioning means for the base sheet selected from (a) a supercalendared surface to render the base sheet glossy or (b) a filler coating to fill voids between said fibers in the cellulosic base sheet form rendering one surface of the base sheet sufficiently smooth and free of discontinuities to allow microwave heating of the coated sheet material without arcing or sparking, a microwave interactive heating layer composed of a microwave coupling material applied from a fluid or vapor state as a coating upon said one surface of the base sheet over the preconditioning means, said microwave interactive heating layer comprising a microwave interactive composition that becomes hot when exposed to microwave energy to thereby transmit the heat by conduction from the interactive layer to the food product.