Heat transmission system based on electromagnetic radiation and a foil for use in a transmission system

摘要

The invention relates to a heat transmission system based on electromagnetic radiation, which heat transmission system comprises an oven cavity and a foil with at least two layers, said at least two layers of the foil comprising a radiation-absorbing layer, wherein the wavelength spectre of the electromagnetic radiation of the radiation-absorbing layer and wavelength spectre of the electromagnetic radiation of the oven cavity are attuned to each other. The invention also relates to a foil for use in a heat transmission system, said foil comprising at least two layers, and wherein the wavelength spectre of the electromagnetic radiation of the foil is attuned to that of a heat source, eg the wavelength spectre of the electromagnetic radiation of an oven. The foil may be provided with a radiation-absorbing surface that may be configured both as a flexible foil and as an inflexible foil that may be of either metal or of a polymer, paper, cardboard or other materials that are based on wood.

主权项

1. A heat transmission system based on electromagnetic radiation, which heat transmission system comprises:
a conventional oven having a heating chamber defined by internal enamel surfaces, and a foodstuff packaging in said heating chamber and comprising a foil formed of:
a metallic substrate;a bottom layer on said metallic substrate; anda top layer on said bottom layer, each of said bottom and top layers having an electromagnetic wavelength spectrum so as to provide an internal reflection therebetween, the top layer exhibiting a wavelength spectrum of an electromagnetic radiation between 2,500-10,000 nanometers.