TH40019A - Multilayer food container - Google Patents

Abstract

DC60 (23/06/42) A food container consists of three or more layers: a first, a second, and at least a third layer. The first layer is oriented towards the user's hands and face and supports the food during use. The first layer is fundamentally continuous along its plane. The third layer is oriented towards the user's lap or the top of the table during use. The second layer separates the first and third layers. In its intended form, such a food container may be made from corrugated sheet material. The food container may also be made from prepared materials that have been deformed from their plane during manufacturing.

Claims (4)

6. Multilayer food containers conforming to claims 1, 2, or 3, where the aforementioned continuous transition areas are free of folds, notches, cuts, or perforations. 7. Multilayer food containers conforming to claims 1, 2, 3, or 5, where the aforementioned second layer consists of a corrugated, wave-shaped medium. 8. Manufacturing process of the multilayer food container. The aforementioned process consists of the following steps: Preparation of the multilayer preparation material with XY planes and Z directions perpendicular to it. The aforementioned multilayer preparation material consists of at least three layers: a first, a second, and a third layer. The aforementioned second layer is inserted between and separating the aforementioned first and third layers to provide an air gap between them. Preparation of the matching presses. At least one of the aforementioned matching presses is movable in the relative Z directions to each other of the aforementioned presses. Insertion of the aforementioned preparation material between the aforementioned matching presses. Bringing the aforementioned presses together in the Z direction to compress at least a portion of the aforementioned preparation material, forming a multilayer food container with adjacent transition areas. The circumference and the central region, which are thicker than the central region mentioned above, are spaced apart in the Z direction. The circumference mentioned above in the central region is connected by a continuous transition region. 8. The process consistent with claim 7, where the aforementioned steps for forming the multi-layer food container consist of the preparation of eccentric extrusion of the circumference of the food container. 9. The process consistent with claim 8, where the second layer mentioned above, consisting of corrugations and the eccentric extrusion mentioned above, is arranged in an azimuth shape and has a heavy axis parallel to the corrugations mentioned above. 10. The process for manufacturing the multi-layer food container consists of the preparation of three layers: the first, the second, and the third layer, each of which has XY planes and a Z direction perpendicular to it. The second layer mentioned above is inserted between and separates the first and third layers mentioned above to provide an air gap between them. At least two adjacent layers are not bonded together. The first, second, and third layers are arranged facing each other, with the first layers touching each other and the second layer separating the second layer. Firstly, as mentioned in the third layer, a pair of compatible presses are arranged. At least one of these compatible presses moves in a Z-direction relative to the other compatible press. By inserting the three layers mentioned between the compatible presses, the presses are brought together in the Z-direction to compress at least a portion of the three layers mentioned together, thus fused the three layers into a single compressed sheet, forming a multi-layered food container with the first and second sections spaced apart in the Z-direction and connected by a continuous transition area (Ten Claims, Drawing, Figure). 1. A multilayer food container has XY planes and a Z direction perpendicular to it. The aforementioned multilayer food container consists of a perimeter and a central region. Each of the aforementioned perimeter and central region has a thickness and is spaced apart in the aforementioned Z direction. The thickness of the aforementioned central region is greater than the thickness of the perimeter. The aforementioned multilayer food container has three layers: the first layer, the second inner layer, and the third layer. The aforementioned second layer is inserted between the aforementioned first and third layers, with the first and third layers spaced apart. The aforementioned second layer provides an air gap between the first and third layers. The food container is multiplanar, with the first and second sections spaced apart in the Z direction. The first and second sections are connected by a continuous transition region. 2. Multilayer food containers with XY planes and a Z direction perpendicular to it. The aforementioned multilayer food container consists of a perimeter and a central region. The perimeter and central region are spaced apart in the Z direction. Each perimeter and central region has a thickness; the thickness of the central region is greater than the thickness of the perimeter and consists of corrugated laminated sheets. These corrugated laminated sheets have at least one smooth outer layer and an inner layer bonded to it. The inner layer consists of a corrugated medium. The food container is multiplanar and has a first and second section spaced in the Z direction. The first and second sections are connected by a continuous transition region. 3. Multilayer food container with XY planes and a Z direction perpendicular to it. The aforementioned food container consists of at least three layers, where the container is composed of corrugated laminated sheets. These corrugated laminated sheets form the central region of the container, which is spaced in the Z direction from the adjacent perimeter and is thicker than the perimeter. This central region consists of extension sheets, which are spaced apart in the aforementioned XY planes. The first and third layers are bonded to the extension sheets so that they are positioned on opposite surfaces of the container in the aforementioned Z direction. The container is multiplanar, with the first and second sections spaced in the Z direction. The first and second sections are connected by a continuous transition region. 4. A multi-layered food container has a central region and an adjacent perimeter region. The central region is thicker than the perimeter region. The perimeter region is displaced from the central region in the Z-direction. The central and perimeter regions are fused together without a fold between them, with a continuous transition region connecting the central and perimeter regions.