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Forgery-prevention composite cardboard used for packaging cigarettes and processing method thereof

A technology of composite cardboard and processing method, which is applied in the processing field of anti-counterfeiting composite cardboard, can solve the problems of high deformation rate, poor shape stability of cardboard, deformation and bending, etc., achieves good printing performance, overcomes easy imitation and small elastic deformation Effect

Active Publication Date: 2010-05-05
浙江京华新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This product has the following disadvantages: ①.Compared with the same quantitative cardboard, the stiffness of cigarette cardboard is 30-50% lower, which cannot meet the requirements of cigarette pack packaging; ②.Because the type and structure of pulp are completely different from real cigarette packs Cardboard, the appearance effect is very poor when it is boxed, and it cannot be packaged normally on a high-speed cigarette charter machine; ③. If it is anti-counterfeiting cardboard with watermark anti-counterfeiting or window-type fully buried security line plus watermark, the watermark effect can be seen on both sides , it is easy to be imitated by embossing or printing, and cannot achieve anti-counterfeiting effect; ④. Especially when watermarking is used for anti-counterfeiting, the watermark effect can be seen with the naked eye or felt by hand on both sides, and it is easy to be embossed or printed. Imitation, poor anti-counterfeiting effect
[0004] In addition, although the paper with window-type fully buried security thread, watermark or window-type fully buried security thread plus watermark anti-counterfeiting function is compounded with coated paper, white paper, and cardboard, it is used to manufacture hang tags, trademarks, and carton packaging. White cardboard, but not for cigarette packaging
The reasons are: ①. The surface of this composite anti-counterfeit cardboard is rough, which is only suitable for simple printing, and cannot be printed exquisitely, and cannot meet the printing requirements of cigarette cards; ②. The composite cardboard has poor shape stability and poor folding resistance
If it is used for wrapping cigarettes, it is easy to deform and bend when it is packed on a cigarette charter machine, and its deformation rate is as high as 10-20%.
[0005] In the existing technology, the above-mentioned paper with anti-counterfeiting function is also coated to adapt to exquisite printing, but the coating method (generally coated with an air knife or scraper) and the formula used in the existing technology cannot solve the problem of both satisfying and exquisite printing. The requirements of printing and the purpose of not covering the anti-counterfeiting marks (security thread or watermark) cannot achieve the unity of both intuitive anti-counterfeiting and exquisite printing, and the anti-counterfeiting marks on the anti-counterfeiting paper are easily covered during the printing process, which cannot be intuitive anti-counterfeiting effect

Method used

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  • Forgery-prevention composite cardboard used for packaging cigarettes and processing method thereof
  • Forgery-prevention composite cardboard used for packaging cigarettes and processing method thereof
  • Forgery-prevention composite cardboard used for packaging cigarettes and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In this embodiment, the composite process is a flow coating composite process, and the key point of the formula in the coating process is to highlight that the security thread on the anti-counterfeiting layer of the composite cardboard will not be covered after coating and printing.

[0050] Composite process, see figure 1 : 150g / m 2 The coated white cardboard or coated paper is loaded into the first paper machine, and its tension is controlled between 3.2 and 6.4N. Here, the tension control should be set in the form of a curve, and automatic closed-loop control. Then the coated white cardboard or coated paper with controlled tension is sent to the corona treatment machine, and the composite surface (uncoated surface or less coated surface) is subjected to corona treatment. The corona voltage is 15-20kV, and the current 10-15A, the treatment here is mainly to make the composite surface have stronger adhesion and performance; then the corona-treated coated white cardboa...

Embodiment 2

[0053] The composite process in this embodiment is a flow coating composite process. The focus of the coating process is to highlight that the watermark on the anti-counterfeit layer of the composite cardboard will not be covered after coating and printing, so that the watermark can be seen on one side.

[0054] The composite cardboard composite process and process are as described in Example 1, and the coating process, equipment and methods used are also as described in Example 1. In order to highlight the effect of single-sided watermarking, the coating layer formula is: polyvinyl alcohol: 10%, methyl cellulose: 20%, methyl butylbenzene-acrylic acid emulsion for papermaking: 15%, superfine calcium carbonate (1000-1200 mesh): 3%, aluminum silver paste: 0.3%, pearl powder: 15%, Dibutanol: 4.7%, water: 32%. The result of adding pearl powder and aluminum silver paste to this formula is to use the reflective effect of the two materials to more clearly highlight the watermark effe...

Embodiment 3

[0056] The composite process in this embodiment is a water-based composite process, and the focus of the coating process is to highlight that the security thread on the anti-counterfeiting layer of the composite cardboard is not covered after coating and printing.

[0057] Composite process, see figure 1 : 170g / m 2 Coated white cardboard or coated paper is placed on the first paper rack, and the tension is controlled at 2.6-3.1N (the tension control here directly affects the flatness of the finished cardboard), and then through the transfer coating glue machine, the The composite surface (uncoated or less coated surface) of coated white cardboard or coated paper under tension control is glued, and the following components (by weight): polyvinyl alcohol 30%, ethylene-vinyl acetate copolymer emulsion 20%, starch 10%, methylcellulose 5%, wetting agent (Tween-7) 5%, water 30%, after mixing evenly, send it to the gluing machine, and the gluing amount is controlled at 12-16g / m 2 ;...

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Abstract

The invention provides a forgery-prevention composite cardboard used for the external packaging of cigarettes and a processing method of the forgery-prevention composite cardboard. The forgery-prevention composite cardboard for packaging the cigarettes is provided with a basal layer and a forgery-prevention layer compounded on the basal layer, wherein the basal layer and the forgery-prevention layer are bonded and compounded by composite glue, and the surface of the forgery-prevention layer is also provided with a coating layer. The processing method of the forgery-prevention composite cardboard comprises the following steps: respectively preprocessing a coating white cardboard or copper printing paper used as the basal layer and forgery-prevention paper used as the forgery-prevention layer, then compounding the basal layer and the forgery-prevention layer into a whole and finally, applying the coating layer to the surface of the forgery-prevention layer, wherein the preprocessing comprises the preheating treatment steps of tension control, corona treatment and the like. The forgery-prevention composite cardboard has favorable printing performance, also has very strong forgery-prevention property and folding endurance and very good stiffness and meets the mounting requirement of a cigarette packaging machine completely; the forgery-prevention composite cardboard is especially suitable for serving as paper used for the external packaging of the cigarettes.

Description

technical field [0001] The invention relates to a cigarette wrapping paper, in particular to an anti-counterfeiting composite cardboard used for cigarette packaging and a processing method of the anti-counterfeiting composite cardboard. Background technique [0002] At present, the cardboard used to make cigarette cards is 220-250g / m 2 Ordinary coated white cardboard, although this cardboard can meet the requirements of exquisite printing and high-speed packaging for cigarette packaging, but as far as the white cardboard itself is concerned, it does not have any anti-counterfeiting function. , but its anti-counterfeiting effect is poor, and it is easy to be imitated, causing a large amount of fake cigarettes to appear. [0003] There are papers or cardboards with anti-counterfeiting functions on the market, such as: 1. Anti-counterfeiting paper with window-type fully buried safety thread; 2. Anti-counterfeit paper with watermark; 3. Watermarked security paper. However, du...

Claims

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Application Information

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IPC IPC(8): D21H19/82D21H19/10D21H23/52
Inventor 王越吴建平
Owner 浙江京华新材料科技有限公司
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