Machine-readable anti-counterfeit paper with color artistic watermarking effects and manufacturing method thereof
A technology of anti-counterfeiting paper and colored paper, which is applied in special paper, chemical instruments and methods, papermaking, etc., can solve problems such as poor visual effects, inability to add anti-counterfeiting elements to watermark parts, and inability to realize color watermarks and functional watermarks, etc., to achieve improvement The anti-counterfeiting level and the effect of improving the anti-counterfeiting effect
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Embodiment 1
[0030] This embodiment provides a machine-readable anti-counterfeit paper containing color artistic watermark effect, which is prepared through the following steps:
[0031] (1) Use cotton fiber as raw material, add chemical additives to the paper, and process it into paper with a quantitative weight of 40-70g / m2. During the papermaking process, add dyes with fluorescent effects to the pulp to make a green color paper (such as figure 1 ), and then process the colored paper into a green leaf-shaped paper sheet with an area of 0.5-5cm2 by pressing or cutting (such as figure 2 );
[0032] (2) In the papermaking process, use the positioning release device 2 to place the anti-counterfeit paper with the above-mentioned green leaf-shaped paper sheets on one side of the wet paper sheet 3 formed by the rotary screen cage 1 of the paper machine by using the positioning release device 2. Strip, compounded with another layer of wet paper 3, as the papermaking progresses, the above-me...
Embodiment 2
[0036] This embodiment provides a machine-readable anti-counterfeit paper containing color artistic watermark effect, which is prepared through the following steps:
[0037] (1) With reference to step (1) of Example 1, blue or red colored paper is obtained by copying, and processed into paper strips with a width of 1-10 cm and a length of 5-50 cm, and are cut or cut in the middle of the paper strip Process a hollow heart shape to obtain an artistic graphic paper sheet with a hollow area, the cross section of which is as Figure 4 shown;
[0038](2) In the process of paper copying, referring to step (2) of Example 1, the above-mentioned art graphic paper sheet with a hollow area is compounded between two layers of paper to complete the copying process and obtain a machine with a color artistic watermark effect. Read security paper.
[0039] When the anti-counterfeiting paper is observed against the light, an obvious blue or red colored paper tape can be observed. Similar vis...
Embodiment 3
[0041] This embodiment provides a machine-readable anti-counterfeit paper containing color artistic watermark effect, which is prepared through the following steps:
[0042] (1) Use cotton fiber as raw material, add chemical additives to the paper, and process it into paper with a quantitative weight of 40-70g / m2. During the papermaking process, add red temperature-changing fibers, blue fluorescent fibers and magnetic fibers to the pulp. fiber, paper that contains the above-mentioned anti-counterfeiting elements is obtained, and then the paper is processed into paper sheets with animal graphics or flower graphics with an area of 0.5-5mm2 by means of pressing or cutting;
[0043] (2) During the papermaking process, refer to step (2) of Example 1, compound the above-mentioned paper sheets with animal graphics or flower graphics into the middle of two layers of paper to obtain machine-readable anti-counterfeiting paper with color artistic watermark effect .
[0044] The machin...
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