Multi-layer hot-pressing composite membrane and preparation method thereof

A technology of composite diaphragm and lamella, applied in the field of orthodontic treatment, can solve the problems of good economic benefit and difficult to control the thickness of lamella, and achieve the effect of good economic benefit, reduction of production cost and guarantee of orthodontic effect.

Inactive Publication Date: 2020-03-27
上海马可菲斯医疗技术有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide a multi-layer hot-pressed composite membrane and its preparation method, solve the problem that the thickness of the sheet is difficult to control, and precisely control the thickness of each sheet, so that the made The hardness of the diaphragm is consistent with the set hardness, which ensures the correction effect, and does not require multiple extrusion equipment, so the economic benefit is good

Method used

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  • Multi-layer hot-pressing composite membrane and preparation method thereof
  • Multi-layer hot-pressing composite membrane and preparation method thereof

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] refer to figure 1 , the present invention provides a multi-layer hot-pressed composite membrane and a preparation method thereof, by determining the thickness of the composite membrane to be formed according to the actual orthodontic plan, and then using a forming equipment to pre-fabricate the sheet, by adding or Reduce the number of layers to adjust the thickness of the composite membrane to be formed, and combine multiple layers into a composite membrane by hot pressing, so the actual preparation does not require multiple extruders to run at the same time, reducing production costs , in addition, because the sheet is prefabricated, the overall temperature of the sheet is not high during the hot pressing process, and the phenomenon of overall thermal melting will not occur, so the deviation between the actual thickness of each sheet an...

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Abstract

The invention relates to a multi-layer hot-pressing composite membrane and a preparation method thereof, wherein the multi-layer hot-pressing composite membrane comprises a plurality of prefabricatedsheet layers, and the sheet layers are sequentially arranged from top to bottom and are spliced into an integrated structure through hot pressing. The problem that the thickness of the sheet layers isdifficult to control is effectively solved, and the thickness of each sheet layer is accurately controlled, so that the hardness of the prepared membrane is consistent with the set hardness, the correction effect is ensured, a plurality of extrusion devices are not needed, and the economic benefit is good.

Description

technical field [0001] The invention relates to the field of orthodontics, in particular to a multilayer hot-pressed composite membrane and a preparation method thereof. Background technique [0002] With the development of society, oral invisible orthodontic technology is widely used because of its transparent appearance, convenient wearing and removal and other factors. In order to increase the transparency, tensile strength, toughness and elasticity of the invisible orthodontic film, the existing invisible orthodontic technology combines three layers The sheets are co-extruded into a composite diaphragm. In actual use, in order to adjust the hardness of the diaphragm, the hardness of the diaphragm is usually changed by adjusting the thickness of each layer. [0003] In the prior art, as disclosed in the patent CN108394152A, three extruders are used to extrude sheets with a set thickness at the same time, and then the extruded sheets are rolled into a film by three-roll ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/36B32B27/40B32B7/08B29C65/02A61C7/00
CPCA61C7/00B29C65/02B29L2007/002B29L2009/00B32B7/08B32B27/08B32B27/36B32B27/365B32B27/40
Inventor 黄成源
Owner 上海马可菲斯医疗技术有限公司
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