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Nanometer watermark paper and manufacturing method thereof

A production method and nano-water technology, which can be used in paper, papermaking, special paper, etc., can solve the problem of low anti-counterfeiting strength, and achieve the effect of large application expansion field, good reliability, good stability and wear resistance.

Active Publication Date: 2007-07-04
CHANGZHI QINGHUA MACHINERY FACTORY
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  • Abstract
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AI Technical Summary

Problems solved by technology

The shortcoming of above-mentioned numerous technical solutions is that anti-counterfeiting intensity is not high

Method used

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  • Nanometer watermark paper and manufacturing method thereof
  • Nanometer watermark paper and manufacturing method thereof
  • Nanometer watermark paper and manufacturing method thereof

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Embodiment Construction

[0034] The present invention is described in detail below in conjunction with accompanying drawing:

[0035] See Figures 1 and 2. Take a plastic plate with a thickness of 2mm and cut it into a shape of 5cm×5cm, and punch a through hole with a diameter of 10mm in the middle as the collimation master 6, and put the collimation master 6 on a piece of polycarbonate with a thickness of 1mm in the same area According to the sequence shown in Fig. 1a, place the U235 sheet in the vacuum chamber 4. After vacuuming, place the vacuum chamber 4 in front of the thermal column 2 of the reactor 1 for irradiation. According to the power of the reactor 1 and the required The track density determines the irradiation time, usually the track density is 10 4 -10 6 piece / cm 2 , if the vacuum chamber 4 is placed in the acceleration pipeline and irradiated with heavy ions, the U235 sheet 3 can be removed. Solid track detector 5 can also use materials such as polyester, nitrocellulose, acetate fib...

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Abstract

The invention provides a nanometer watermarking paper and the manufacturing method, characterized in that microscopic stereo concave group is generated on the paper fault in random by nuclear track technology; nanometer grain is filled in them so as to form nanometer watermarking. Because individual behavior in mass microscopic grains can not be controlled by people currently, the equipment, material and technology of nanometer watermarking paper, which are disclosed, can not be copied. So the nanometer watermarking paper is provided with highest anti-counterfeiting degree and is widely applied in money, police, CIQ and taxation so on.

Description

Technical field [0001] The invention belongs to a method for making anti-counterfeit paper, in particular to a nano watermark paper made by nuclear track technology and a method for making the same. technical background [0002] As we all know, traditional watermark paper has been around for many years. Its production process is usually completed in the papermaking process. Due to the large and expensive equipment required, coupled with the complicated process and high cost, it has a greater anti-counterfeiting strength in the early stage of use. However, in recent years, with the advancement of technology, ordinary watermarks Paper making techniques are widely spread, so as long as you have the equipment and technology, you can make the same watermark. In order to strengthen the anti-counterfeiting of paper, numerous technical schemes are arranged to come out. The Chinese invention patent "anti-counterfeiting paper and its production method" published on September 25, 199...

Claims

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Application Information

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IPC IPC(8): D21H19/66D21H27/22D21G9/00
Inventor 孟武
Owner CHANGZHI QINGHUA MACHINERY FACTORY
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