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Magnetic anti-counterfeiting aluminum-foil paper

A technology of aluminum foil and magnetism, which is applied in the field of aluminum foil, can solve the problems of high-end cigarettes that cannot be anti-counterfeited, and achieve good magnetic effects

Active Publication Date: 2017-08-08
CHUZHOU CIGARETTE MATERIALS FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the aluminum foil specially made for a certain brand is not only printed with the factory name, but also printed with the brand's name and decorative patterns, it is for advertising on the one hand and for anti-counterfeiting on the other. The anti-counterfeiting technology is too reproducible to effectively prevent high-end cigarettes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A magnetic anti-counterfeiting aluminum foil paper, comprising a base paper and an aluminum foil layer, the surface of the aluminum foil layer is coated with a magnetic coating with a thickness of 10-40um, the preparation and coating process of the coating is as follows:

[0018] (1) Dissolve 1.5kg of polyurethane resin in acetone, add magnetic nano-silica and stir to disperse for 2 hours. After the dispersion is uniform, add 30g of aluminum oxide, 50g of sodium stearate, 10g of silicate, 50g of silicone oil and 10g of carbon Black, fully stir for 1 hour, then add 0.2kg of toluene diisocyanate, mix and disperse for 30 minutes, then the magnetic coating will be formed;

[0019] Among them, the preparation process of magnetic nano-silica is as follows: ①Add 100mL of cooling boiling water into a three-necked flask, and inject nitrogen gas into it, and dissolve 2.7gFeCl 3 ·6H 2 O and 3gFeCl 2 4H 2 Add O into water, stir and dissolve at 70°C, then add 30mL NaOH solution w...

Embodiment 2

[0022] A magnetic anti-counterfeiting aluminum foil paper, comprising a base paper and an aluminum foil layer, the surface of the aluminum foil layer is coated with a magnetic coating with a thickness of 10-40um, the preparation and coating process of the coating is as follows:

[0023] (1) Dissolve 2kg of polyurethane resin in cyclohexanone, add magnetic nano-silica and stir to disperse for 2.5h. After the dispersion is uniform, add 40g of aluminum oxide, 70g of sodium oleate, 30g of silicate, 80g of olive oil and 20g of acetylene carbon black, fully stirred for 1.5h, then added 0.3kg of toluene diisocyanate, mixed and dispersed for 30min to the magnetic coating;

[0024] Among them, the preparation process of the magnetic nano-silica material is as follows: ①Add 120mL of cooling boiling water into the three-necked flask, pass nitrogen gas into it, and dissolve 2.7gFeCl 3 ·6H 2 O and 3gFeCl 2 4H 2 Add O into water, stir and dissolve at 70°C, then add 25mL NaOH solution wit...

Embodiment 3

[0027] A magnetic anti-counterfeiting aluminum foil paper, comprising a base paper and an aluminum foil layer, the surface of the aluminum foil layer is coated with a magnetic coating with a thickness of 10-40um, the preparation and coating process of the coating is as follows:

[0028] (1) Dissolve 2.5kg of polyurethane resin in ethanol, add magnetic material and stir to disperse for 3 hours, after the dispersion is uniform, add 50g of aluminum oxide, 100g of sodium alkylsulfonate, 50g of titanate, 150g of liquid paraffin and 30g of graphite in sequence, Thoroughly stir for 2 hours, then add 0.5kg of toluene diisocyanate, mix and disperse for 30 minutes, and then the magnetic coating is ready;

[0029] Among them, the preparation process of the magnetic nano-silica material is as follows: ①Add 140mL of cooling boiling water into the three-necked flask, pass nitrogen into it, and dissolve 2.7gFeCl 3 ·6H 2 O and 3gFeCl 2 4H 2 Add O into water, stir and dissolve at 70°C, then...

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PUM

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Abstract

The invention discloses magnetic anti-counterfeiting aluminum-foil paper, which comprises base paper and an aluminum-foil layer, wherein the surface of the aluminum-foil layer is coated with a layer of magnetic coating with a thickness of 10 to 40 microns; the coating is prepared from the following raw materials in percentage by mass: 15 to 25 percent of polyurethane resin, 5 to 10 percent of magnetic nano silica, 50 to 70 percent of organic solvent, 0.3 to 0.5 percent of aluminum oxide, 0.5 to 1 percent of dispersant, 0.1 to 0.5 percent of coupling agent, 0.5 to 1.5 percent of lubricant, 0.5 to 1 percent of antistatic agent and 2 to 5 percent of toluene diisocyanate. According to the magnetic anti-counterfeiting aluminum-foil paper, the surface of the aluminum-foil paper is coated with a layer of magnetic material; the part into which magnetic powder is added is different from other aluminum-foil paper in hand feeling, and particularly can be identified through a magnetic metal identifier or a magnetic induction device, so as to achieve an anti-counterfeiting purpose.

Description

technical field [0001] The invention belongs to the field of aluminum foil paper manufacturing, and relates to an aluminum foil paper, in particular to a magnetic anti-counterfeiting aluminum foil paper. Background technique [0002] Aluminum foil paper is a paper made of aluminum foil backing paper and aluminum foil paper. It is as soft as paper and easy to deform, and it does not rebound after deformation. It can guarantee shading, no falling, light-proof, no pollution, and cheap price. It is often used for moisture-proof and decorative packaging of high-grade cigarettes, candies and other foods. At present, cigarette aluminum foil paper has a common feature, that is, whether it is on the front or back, most of them are printed with part or full version of the factory name in Chinese, Chinese pinyin or English, and some are also printed with corporate logos. If the aluminum foil specially made for a certain brand is not only printed with the factory name, but also printed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/23C09D5/24C09D7/12D21H19/62D21H19/40D21H19/38D21H27/10
CPCC08K2003/2272C08K2201/01C08K2201/011C08K2201/017C09D5/00C09D5/24C09D7/61C09D7/63C09D7/65C09D175/04D21H19/385D21H19/40D21H19/62D21H27/10C08L83/04C08K13/06C08K9/02C08K3/36C08K3/22C08K3/04C08L91/00C08L91/06
Inventor 黄幼兵杜威陶香君郭杰
Owner CHUZHOU CIGARETTE MATERIALS FACTORY
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