| 摘要 |
A sleeve having two conjoined sides 4 and two open sides for heating food 2,3, the sleeve having at least one panel 1 made of material comprising layers of PTFE (polytetrafuoroethylene) with or without a core layer of glass fibre, Kevlar or similar mesh, although the invention can equally be made from other suitable materials such as skived or laminated PFA (perfluoralkoxy) and FEP (fluorinated ethylene propylene) or other copolymers of tetrafluoroethylene. The material may be in the form of a film, the mesh being very fine in nature if present, or in the form of a mesh, with relatively large thread sizes and gaps between the warp and weft of the mesh. The sleeve may be formed from one piece of material folded upon itself and connected by welding or other known means of adhesion or connection, or it may be made from two pieces of material connected by similar means at both ends. It may be formed as a rectangle to completely encompass the food or toast product, and equally may for reasons of economy be made with a wider base and a narrower top, thus forming a truncated pyramidal shape. |
