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Multilayer composite membrane, multilayer composite board and preparation method thereof

A multi-layer composite film and composite board technology, applied in the direction of chemical instruments and methods, lamination, layered products, etc., can solve the problems of easy peeling off of patterns, difficulty in producing qualified products, and affecting appearance, so as to improve production efficiency and yield, saving cost and labor, good printing effect

Inactive Publication Date: 2012-11-14
GUANGDONG WANSHIJIE PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure will cause the following problems: 1. Bubbles and air bulges will appear in the finished bags produced, and some even have such quality problems before they are sold; 2. During the production process, the printed PC surface layer must be Rapid compound molding with the base layer under harsh conditions, that is, the surface layer and the base layer must be stored in the oven, that is, the dehumidification equipment for a long time. Under certain circumstances, such as rainy weather, it is difficult to produce qualified products, and some manufacturers have to stop production. Affect the production schedule; moreover, if thermal transfer printing is required, the production conditions are higher, and the thermal transfer printing of the day needs to be completed on the same day, and it is even impossible to produce in rainy and foggy days with high humidity. If it cannot be completed on the same day, it will be invalidated the next day and cannot be used.
In order to solve this problem, some manufacturers choose to print the pattern outside, but this method will make the pattern easy to fall off, affect the appearance and pollute the environment

Method used

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  • Multilayer composite membrane, multilayer composite board and preparation method thereof
  • Multilayer composite membrane, multilayer composite board and preparation method thereof
  • Multilayer composite membrane, multilayer composite board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 , The multilayer composite film 1 in this embodiment is made of a printing layer 11 , an impact-resistant layer 12 and an anti-scratch layer 13 . Among them, the printing layer is made of PETG, PETG is ethylene glycol modified polyethylene terephthalate, is a transparent plastic, is a non-crystalline copolyester, made of terephthalic acid (TPA ), ethylene glycol (EG) and 1,4-cyclohexanedimethanol (CHDM) three monomers are polycondensed by transesterification, which has the advantages of high transparency and easy printing.

[0028] Among them, the impact-resistant and high-temperature-resistant layer is made of PC. The anti-scratch layer is formed by spraying and curing UV hardening liquid on the impact-resistant layer.

[0029] see figure 2 , the multilayer composite board 2 in this embodiment includes a board body 21 and a multilayer composite film 1, and the board body includes a substrate 21a and an inner layer 21b disposed inside the substrate. Wh...

Embodiment 2

[0040] see image 3 The difference from Example 1 is that the multilayer composite film in this example is composed of a printing layer, an impact-resistant layer, a hardness layer, and an anti-scratch layer, wherein the hardness layer is made of PMMA. When producing multi-layer composite film, compared with embodiment one, also need to set up an attached machine, be used for the raw material of melting hardness layer; Adopt multi-layer in-mold composite die head, drill a plurality of holes in the die head to supply oil or Air is used for cooling, and the die head is equipped with a converter, which can be switched between extruding two layers and extruding three layers. When producing multi-layer composite film, during hot pressing, the temperature of the upper and lower rolls is as follows: the temperature of the press roll contacting the printing layer is 48°C, and the temperature of the press roll contacting the hardness layer can be selected from 60°C-110°C, preferably 80...

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PUM

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Abstract

The invention discloses a multilayer composite membrane. The multilayer composite membrane sequentially comprises a printing layer and a shock-resistance layer which are mutually combined from bottom to top, wherein the printing layer is made of PETG or PCTG or PCT or PTT or PCTA or COC or CA or SCF or SGP, and the shock-resistance layer is made of PC. In the multilayer composite membrane disclosed by the invention, because the printing layer is made of materials such as PETG or PCTG or PCT or PTT or PCTA or COC or CA or SCF or SGP and the like, and the materials are high in transparency, good in printability and easy to color, the application of the materials subjected to printing in the manufacturing of a multilayer composite board can avoid that printing ink is directly printed on the shock-resistance layer, so that micropores are produced on the shock-resistance layer and then water vapor enters into a substrate, therefore, phenomena of foaming and stripping occur between layers; and the printing layer arranged in the invention effectively isolates the printing ink from the shock-resistance layer, and the tinting strength of the printing layer is better than that of the shock-resistance layer, therefore, the printing effect is better. According to the invention, no drying oven and other dehumidification equipment are not required to be added, thereby saving the cost and labor, and improving the production efficiency and yield. The invention also discloses a multilayer composite board and a preparation method thereof.

Description

technical field [0001] The invention relates to the technical field of manufacturing composite boards, in particular to a multilayer composite film, a multilayer composite board and a preparation method thereof. Background technique [0002] Non-metallic composite panels are widely used in various industries due to their advantages of light weight, low price, and corrosion resistance, such as luggage, electrical appliances, and helmets. For example, the existing hard bags are generally composed of a surface layer and a base layer. The surface layer is generally made of PC, and the base layer is often made of PC, ABS, PP, etc. This structure will cause the following problems: 1. Bubbles and air bulges will appear in the finished bags produced, and some even have such quality problems before they are sold; 2. During the production process, the surface of the printed PC needs to be Rapid compound molding with the base layer under harsh conditions, that is, the surface layer an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/36B32B33/00B32B37/06B32B37/10B32B38/18B29C47/06
Inventor 侯兴福
Owner GUANGDONG WANSHIJIE PLASTIC TECH