Heat compounding technique and apparatus of BOPET film and tin-free steel plate

A thermal lamination and steel plate technology, applied in layered products, lamination devices, lamination, etc., can solve the problems of endangering human health, pollution and energy consumption, and achieve environmental protection in the production process and products, low production costs, and low energy consumption Effect

Active Publication Date: 2012-06-27
上海联净复合材料技术有限公司
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Problems solved by technology

[0006] Aiming at the deficiencies of the existing technology, the present invention can completely solve the possible harm to human health, pollution and high energy consumption existing in the prior art by providing a brand-new produ

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  • Heat compounding technique and apparatus of BOPET film and tin-free steel plate
  • Heat compounding technique and apparatus of BOPET film and tin-free steel plate
  • Heat compounding technique and apparatus of BOPET film and tin-free steel plate

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Embodiment Construction

[0051] specific implementation

[0052] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0053] figure 1 It is a schematic diagram of the overall process and equipment process of an embodiment of the thermal lamination process and equipment of BOPET film and tin-free steel plate of the present invention. The entire production process of an embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings of the present invention.

[0054] Tin free steel (TFS for short), that is, the surface of cold-rolled thin steel plate is not tin-plated, but a thin layer of chromium and chromium oxide is plated on the surface of the steel plate by electroplating. Compared with tinplate, TFS is non-toxic and more environmentally friendly, and TFS has better adhesion to film. BOPET film is a biaxially oriented polyester film, which has the advantages of high str...

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Abstract

The invention provides a heat compounding technique of a BOPET film and a tin-free steel plate,which comprises the steps of: uncoiling the steel plate by an uncoiling machine, preheating the steel plate to a set temperature by a preheating machine set, and high temperature heat compounding the preheated steel plate with the BOPET film through a hot pressing device, and coiling the heat compounded steel plate by a coiling machine. The invention also provides a heat compounding apparatus of BOPET film and tin-free steel plate, wherein the steel plate is uncoiled by the uncoiling machine and is conveyed to the preheating machine set to be preheated, and the preheated steel plate is heat compounded with the BOPET film by the hot pressing device. The heat compounding technique and apparatus of BOPET film and tin-free steel plate provided by the invention has the advantages of compounding a plastic film on the surface of the steel plate in an efficient, environmental friendly and low-cost manner, the production process is environmental friendly, the product has better erosion resistance, and no toxic low molecular compound is residual, so that the invention satisfies the low-carbon and environmental friendly conception of mass production in the modern industry.

Description

technical field [0001] The invention relates to a process and equipment for thermally laminating BOPET film and tin-free steel plate, in particular to a process and equipment for thermally laminating BOPET film and tin-free steel plate under high temperature. Background technique [0002] At present, most food cans in my country use tinplate as the base material, and paint is sprayed inside and outside to prevent food and oxygen from corroding the can body. Tinplate is a thin steel plate tinned on the surface, which has a history of more than 100 years as metal packaging for food and the like. The paint used on the inner surface of the packaging tank with tinplate as the base material, that is, the surface directly in contact with food, is based on epoxy resin, and epoxy resin often contains bisphenol A, which is harmful to the human body. Bisphenol A is very harmful to the human reproductive system. If it remains in the tank, it is likely to enter the human body and endang...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B37/10
Inventor 文元庆邹斌
Owner 上海联净复合材料技术有限公司
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