At present, anti-counterfeiting technologies commonly used in the field of cigarette pack printing

1. Anti-counterfeit design before printing

2. Printing process security

3. Printing supplies anti-counterfeiting

4. Postpress protection

5. Other anti-counterfeiting technologies

First, anti-counterfeiting design before printing

Mainly using Barco, Mongolian and Founder and other famous brands of software and design plate system for security design.

Pre-press design anti-counterfeit technologies include: rainbow shading, embossed shading, anti-copy shading, gradient shading, lace, flower neo-cassettes, borders, micro-text, "mask" unlocking technology, and rainbow multi-color printing, front and back To India and so on.

Second, printing process security

A variety of combinations of printing methods: on a cigarette label simultaneously using offset printing, flexo printing, screen printing, gravure printing, digital printing and other printing processes, anti-counterfeiting effect is much higher than the use of a single printing method of cigarette labels.

Using special printing technology:

(1) Three-dimensional printing: The integration of the three-dimensional imaging technology with the printing process, and the flat printing image can show a strange visual experience of stereo vision and different edges.

(2) Microprinting: printing very fine text on a solid or dashed line that looks like ordinary printing, or it can be

On a certain part of a printed dot or shading pattern, microscopic text, codes or images can be read out with a magnifying glass or a microscope. Counterfeiters have difficulty replicating precisely.

(3) Engraving gravure printing: The gravure printing plate is produced by engraving. The plate making process is complicated and the printing is very difficult. It is difficult to copy and forge. Example: Jinshasu smoke from Xuzhou Cigarette Factory. On its sealing label, anti-counterfeiting measures of engraved gravure printing optical inks were adopted. The main content was the light gold/red color changing pattern surrounded by decorative flowers. While highlighting the gravure anti-counterfeiting, the sealing label and packaging design were also in harmony.

(4) Others: Rainbow printing, pattern docking, printing, wiring printing, multi-color overprinting, special glossy printing, hidden image and image anti-falsification printing, etc.

Third, printing supplies anti-counterfeiting

Paper security:

(1) Fiber paper: In the paper manufacturing process, colored fiber filaments are added, and colored fibers can be seen under ordinary light or some special light sources.

(2) Watermark paper: A method of changing the density of pulp fibers during the papermaking process to produce paper with light and shade textures, graphics, or text. The printing of banknotes of various countries is widely used. Such as Guiyang cigarette factory: gold medal "Huangguoshu" and so on.

(3) Holographic transfer paper: Ordinary hologram transfer paper and positioning hologram transfer paper.

Ordinary holographic transfer paper: The holographic film arranged continuously is made into a holographic paper by transfer and then printed on a holographic paper. The surface of the laser holographic paper is a non-absorbent surface. When it is printed, it is agreed that there are problems such as smudging, sticking, and popping. The cigarette pack printing companies must strengthen the process control when using such technologies. Honghe V8, Huangshan Montreal, flagship Jiaozi, Yellow Crane Tower, Liqun, etc.

Positioning holographic transfer paper: The holographic master is used to position and layout the hologram of the cigarette pack, and the holographic film is molded to form a positioning holographic printing paper by compounding or transferring. The holographic paper is accurately aligned and printed. The requirement for alignment accuracy is high, and only a few companies have developed better products. Such as white sand, five leaf gods and so on.

(4) Other security paper: holographic composite paper, magnetic security paper, thermal security paper and photochromic security paper.

Ink security:

(1) Luminous ink: long-lasting rare earth luminescent material, made by high-tech means. Absorb sunlight for 10-30 minutes during the day, it will automatically continue to shine more than 10h, so it can still shine at night. Such as the Longyan Cigarette Factory "Gutian" cigarette pack (now changed to Furian seven wolves) on the fire wolf logo.

(2) Fluorescent inks: Inks made with fluorescent pigments convert short-wave UV light into longer visible light, reflecting more brilliant colors. Hard clamshell special boutique “Red Flag Drain” cigarette mark, observed under the frying machine, can be seen on the “Red Flag Canal” on a red day.

(3) temperature change ink: also known as thermal color ink, thermal ink or temperature ink, is divided into reversible thermochromic (or decolorizing) ink and irreversible thermochromic (decolorized) ink two. The thermochromic ink is a special functional material made of a color changing material plus other auxiliary components, and the material has a characteristic that the color changes with temperature. For example, the small square around the lion's head of the “Red Lion” in Xiamen Cigarette Factory will become lighter when the temperature rises, and will return to the original when the temperature recovers. In the "Shishi (New)" box, a red stone lion is embedded in the middle of the box. When it is heated, the red stone lion pattern will turn golden, and the background color will be restored after cooling. The "Red Incense" liner was burned with fire, and the red color disappeared. The red was restored after the fire was withdrawn.

(4) Optically variable ink (OVI): also known as optical color-changing ink and chameleon. Printed color blocks present a pair of colors, such as red-green, green-blue, gold-silver, etc., which are viewed or viewed sideways under white light. With the change of the human eye's perspective, two different colors are presented, with strong light-transformation characteristics, large variations in color differences, and distinct features, which can be identified without any equipment. The printing features cannot be imitated by any other inks and printing methods, and the reliability of anti-counterfeiting is extremely strong. Therefore, it is designated by many countries in the world for the most demanding and most difficult currency and security securities. Some famous domestic manufacturers It has also been used for packaging security.

Ink anti-counterfeiting technology features: simple implementation, low cost, good concealment, colorful, easy inspection.