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Anti-fake stayguy material on tobacco bale and preparation method thereof

A technology for anti-counterfeit pull wires and cigarette packs, applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problems of complex preparation process of anti-counterfeit pull wires, and achieve the effect of convenient identification and simple preparation process

Inactive Publication Date: 2010-02-24
BEIJING LIBALONGAN TECH & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the above-mentioned anti-counterfeiting pull wire is that the preparation process is complicated, and special auxiliary equipment is required

Method used

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  • Anti-fake stayguy material on tobacco bale and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0027] The present invention also provides a method for preparing the anti-counterfeiting pull wire of a cigarette pack, comprising:

[0028] After preparing the anti-counterfeit pull wire material for cigarette packs according to the above technical scheme, apply a pressure-sensitive adhesive layer on the anti-counterfeit pull wire for cigarette packs, and then cut to obtain the anti-counterfeit pull wire for cigarette packs. Such as figure 1 As shown, it is a schematic structural diagram of the anti-counterfeiting pull wire for cigarette packs provided by the present invention, which includes a film base 11 and an adhesive layer 12 connected to the film base.

[0029] According to the present invention, the polypropylene for film refers to the polypropylene well known to those skilled in the art for the preparation of film, which may be a homopolymer of propylene or a copolymer of propylene and other olefins other than propylene. Examples can be: ethylene, butene, pentene, ...

Embodiment 1

[0049] Weighing 90 kg of polypropylene powder and 10 kg of infrared fluorescent powder, mixing and stirring evenly, and melting the mixed powder to obtain a polypropylene melt.

[0050] The polypropylene melt is extruded at 280°C by a sheet extruder with a diameter of 90mm, and made into a 1.5mm sheet by a cold roll at 30°C, using a tenter-type continuous biaxial stretching device, The sheet was longitudinally stretched 5 times at 145°C and then 10 times in a tenter at 170°C to obtain a transparent biaxially stretched polypropylene film about 20 µm thick.

[0051] The biaxially stretched polypropylene film can display anti-counterfeit bright spots under the irradiation of infrared light.

[0052] The biaxially stretched polypropylene film is coated with pressure-sensitive adhesive, and cut to obtain the anti-counterfeiting pull wire of the cigarette pack.

Embodiment 2

[0054] Weigh 96 kg of polypropylene powder and 4 kg of infrared fluorescent powder and stir evenly, and obtain a polypropylene melt from the mixed powder.

[0055] The polypropylene melt is extruded at 280°C by a sheet extruder with a diameter of 90mm, and made into a 1.5mm sheet by a cold roll at 30°C, and is stretched using a tenter-type continuous biaxial stretching device , the sheet was longitudinally stretched 4 times at 145° C., and then stretched 8 times at 170° C. in a tenter to obtain a transparent biaxially stretched polypropylene film with a thickness of about 24 μm.

[0056] The biaxially stretched polypropylene film can display anti-counterfeit bright spots under the irradiation of infrared light.

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Abstract

The invention discloses an anti-fake stayguy material on tobacco bale and a preparation method thereof. The method comprises the steps of providing a polypropylene fused mass used for film which contains IR fluorescent powder, extruding the polypropylene fused mass used for film into platelets and performing biaxial extension on the platelets to form the anti-fake stayguy material on tobacco bale.At least partial IR fluorescent powder is added into the polypropylene fused mass, and then the anti-fake stayguy material containing fluorescent powder on tobacco bale is formed by performing biaxial extension. Compared with the prior anti-fake arts, the preparation method provided by the invention is simple. When infrared light illuminates, the anti-fake stayguy material on tobacco bale can show the anti-fake bright spots, so the consumers can conveniently identify the fake cigarettes.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to a cigarette package anti-counterfeit pull wire material and a preparation method thereof. Background technique [0002] At present, counterfeit and inferior cigarettes of famous brands are flooding the market, which greatly endangers the interests of the country, consumers and tobacco manufacturers. The preparation process of counterfeit cigarettes is generally as follows: use recycled tobacco manufacturers’ cigarette packages to contain counterfeit cigarettes; or imitate the manufacture of tobacco manufacturers’ cigarette packages and contain counterfeit and inferior cigarettes to pretend to be brand-name products to deceive consumers, evade state taxes, and obtain illegal cigarettes. Huge income. Therefore, it is necessary to carry out anti-counterfeiting treatment on tobacco packaging. [0003] In the prior art, the cigarette packaging material is generally biaxial...

Claims

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Application Information

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IPC IPC(8): B29C69/02B29C55/12B65D65/34B65D75/66G09F3/00C08L23/12B29K105/16
Inventor 张伟东罗尚工龙彪
Owner BEIJING LIBALONGAN TECH & TRADE