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Method for making polarizing invisible image by using heat sensitive process

A heat-sensitive method and polarizing technology, which is applied in the direction of chemical instruments and methods, polarizing elements, synthetic resin layered products, etc., can solve the problems of complex manufacturing process, high cost, and difficult purchase of raw materials, and achieve simple equipment and low production cost , the effect of sufficient market supply

Inactive Publication Date: 2007-07-11
黄仁瑜
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for making polarized invisible images by heat-sensitive method, so as to solve the problems existing in the prior art that a fuzzy layer needs to be covered to eliminate printing traces; the manufacturing process is complicated and the cost is high; the raw materials are not easy to purchase

Method used

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  • Method for making polarizing invisible image by using heat sensitive process

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Embodiment Construction

[0020] Referring to Fig. 1~Fig. 3, the concrete steps of the present invention are as follows:

[0021] 1. Print the back of the polarizer 3 commonly used on photoelectric screens with silver paste as the reflective layer 4 . The silver paste printed on the polarizer as the reflective layer 4 is made of aluminum powder and varnish, because the color is silvery, so it is commonly called as silver paste. The silver paste used is a kind of conventional ink sold in the market, and the printing is also conventional printing, which can be gravure printing or screen printing.

[0022] 2. Select plastic film produced by stretching method such as: PE, PVC, PP, PET, etc. as polarized image carrier 1.

[0023] 3. Heat-sensitive treatment of the polarized image carrier: according to the image to be produced, the polarized image carrier 1 is selectively heated instantaneously, and the heated area loses the polarizing effect and becomes an ordinary transparent film 2 .

[0024] Specific e...

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Abstract

The heat sensitive made polarized hidden image starts from making polarized light reflective plate, printing reflective layer on the back of the polarized plate of the usual photographic display, selecting stretch way produced plastic film to make polarized image carrier, applying heat sensitive treatment to the polarized image carrier, on which instantly heating the profile of the image with the temperature being the marginal one to make it change from solid to liquid, with the heated molecules moving aimlessly, confounding the neat and polarized media feature of the stretch made molecule, losing polarized effect to change into common transparent film, combining the heated image carrier thin film to the polarized reflective plate to form its hidden image. It is convenient in material selection, with sufficient supply of the polarized plate and the stretch plastic film market, clearer pattern than printing, simple of equipment and low in production cost.

Description

technical field [0001] The invention relates to a method for making a polarized invisible image, which is mainly used for testing and anti-counterfeiting of polarized products. Background technique [0002] Polarized light (polarized light phenomenon) is a wonderful natural phenomenon that has been discovered and valued by people for a long time. In recent years, people have made polarizers and widely used them on photoelectric screens. However, making polarized invisible images and applying it to the testing and anti-counterfeiting of polarized products has progressed very slowly. Only American company Polaroid uses the printing method to produce polarized test sheets (POLARIZED TESTLABEL), which are specially used for testing polarized sunglasses. Our country needs 20 million test pieces of this kind every year, all of which are imported from the United States worth 40 million yuan. The basic structure of the above-mentioned printing method to make a polarizing test pie...

Claims

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Application Information

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IPC IPC(8): G02B5/30B32B27/00B32B33/00
Inventor 黄仁瑜
Owner 黄仁瑜
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