Details of the latest 8 anti-counterfeiting technologies for packaging in various industries

With the needs of the development of the socialist market economy, the current society's requirements for packaging are getting higher and higher. At the same time, accompanied by the public's requirements for packaging are becoming more and more high-grade. Packaging printing is also based on its inherent The characteristics of gorgeous colors, novel patterns, and convenient use are widely used in various industries for packaging.

Security shading anti-counterfeiting technology

Security shading anti-counterfeiting technology because of its high security and technical exclusivity, along with the development of computer technology, the use of computer-created plate pattern effect, the application of special color electronic graphics, publishing software to produce particularly complex, subtle, delicate, high-resolution print shading. This kind of shading is difficult to copy by manual, laser phototypesetting or scanning, such as very complex flowers, arbitrary geometric figures, single line, composite or twisted closed lace and other figures, which can also be distorted and deformed, or made into square, concentric circles, intaglio, flat line relief, curved relief, multi-color relief and so on. The flowers can also be embedded with characters, and the shading figure can also be gradually shifted, these are one of the techniques to achieve special effects in food packaging design. For food packaging designers, they can give full play to their rich imagination and create graphics that are difficult to imitate, thus achieving anti-counterfeiting.

ink anti-counterfeiting technology

Ink anti-counterfeiting is to add special anti-counterfeiting materials in the ink connection material, and the special printing ink is processed by special process. It is mainly printed on the trademark and packaging of food products by ink printing. This type of anti-counterfeiting technology is characterized by simple implementation, low cost, good concealment, bright colors, convenient inspection, and strong reproducibility. It is the first choice of anti-counterfeiting technology for food packaging, banknotes, tickets and trademarks in various countries. Ink anti-counterfeiting currently covers fluorescent ink anti-counterfeiting, temperature-changing ink anti-counterfeiting, daylight color-changing ink anti-counterfeiting, magnetic ink anti-counterfeiting, energy storage light-emitting ink anti-counterfeiting, infrared ink anti-counterfeiting, anti-alteration ink anti-counterfeiting and other anti-counterfeiting performance of anti-counterfeiting printing oil.

Fluorescent ink refers to the addition of a fluorescent substance in colored ink or colorless ink, which can emit fluorescence of various colors under the irradiation of ultraviolet light source, mainly colorless fluorescent ink, colored fluorescent ink and color-changing fluorescent ink. Under the irradiation of ultraviolet lamp, colorless can show red, yellow, green and other colors; and colored can make the original pattern bright; discoloration can make the printed color into another color, fluorescent ink anti-counterfeiting technology can be used for all kinds of tickets, trademarks, labels, food packaging anti-counterfeiting applications.

Temperature anti-counterfeiting technology refers to when the anti-counterfeiting label in the face of a heat source when the color change can be changed from one color to another color, can also become colorless, this change process is reversible, there are irreversible, discoloration temperature 30 ℃, 40 ℃, 50 ℃. Reversible thermosensitive color anti-counterfeiting technology is characterized by the pattern printed on the logo is invisible at room temperature, and the pattern is displayed after heating to 60 ℃. The biggest feature of this technology is good concealment, in the case of heat source can make its pattern appear so that customers can identify the true and false products, when the heat source is removed after the display of the pattern disappeared. Because the identification method is simple, it is very good as a second-line anti-counterfeiting effect.

Photosensitive anti-counterfeiting technology uses the irradiation of light to change the anti-counterfeiting pattern, so that the user can judge the authenticity of the product with anti-counterfeiting identification without any detection tools. Under the action of light, the photosensitive anti-counterfeiting mark shows the pattern by colorless, so that consumers can immediately identify it. Meanwhile, when the customer covers the pattern with his hand, after a few seconds, the pattern disappears. The appearance and disappearance of photosensitive anti-counterfeiting color is completed in a few seconds, which has the characteristics of rapid and convenient detection.

Memory heat-sensitive anti-counterfeiting technology: The pattern printed by this technology is colorless before it is not recognized. When the customer touches it with a heat source of 60°C, the pattern is displayed. When the heat source is removed, the pattern does not fade, which is its memory. When heated again using a heat source, the pattern disappears, and at this time, it has a high-temperature decoloring property, and in addition, it has a colorless reducing property and the like under certain conditions. Over time, each anti-counterfeiting ink will lose its novelty, but as long as it is used reasonably and properly, it will extend its service life. For example, the composite use of anti-counterfeiting ink can effectively improve its anti-counterfeiting effect, there are two main methods: one is the composite use of two or more kinds of anti-counterfeiting ink, combining the respective characteristics of the two inks to form a new anti-counterfeiting ink; The other is to print characters or patterns with more than two kinds of anti-counterfeiting ink respectively, such as printing patterns like bar codes, you can use magnetic anti-counterfeiting ink to print the pattern of the strip, and use thermal ink to print the pattern of the empty, which obviously improves the technical content of anti-counterfeiting ink.

Anti-counterfeiting Technology of Packaging Printing

This kind of technology application is the use of hand (manual), convex, concave and flat, convex, concave leakage and other multi-process printing, multi-color string printing, it can be printed on a variety of colors, and the middle transition is soft. Since it is difficult to see the placement distance of the ink tank partition from the printed product, it can also play a certain anti-counterfeiting role. If this process is used on a large area of shading printing, its anti-counterfeiting effect will be more prominent. In a variety of printing technology, gravure technology engraving gravure printing anti-counterfeiting effect is relatively good, but because its printing technology is relatively easy to master other technologies, so the overall anti-counterfeiting effect is not good. For intaglio printing, especially hand-engraved intaglio printing, it is easy to implement secret anti-counterfeiting during plate making. The depth of pits during engraving determines the shade level of printed pictures and texts. Imitators can easily imitate the size of pictures and texts and the thickness of lines, but it is difficult to imitate prints with the same shade level (I .e. the same deep ink pits).

Anti-counterfeiting Technology of Laser Hologram

The use of laser color hologram plate making technology and embossing technology made of laser rainbow embossing holographic graphics, can be made on the product visible or invisible graphics or information. Since the combination of color blocks in the hologram is random coding, it is difficult to copy exactly the same master even if the same device is used, so the rainbow hologram can be used as an anti-counterfeiting mark, and it can also be directly transferred to paper or card. Paper holographic logo is a green packaging product with many functions such as environmental protection and anti-counterfeiting.

Laser embossed holographic anti-counterfeiting logo has a single rainbow color, a variety of rainbow color, true color and black and white (achromatic) 4 kinds, the image has two-dimensional, three-dimensional, multiple and dynamic imaging, as well as bronzing hologram and transmission hologram. Through the hologram can be seen at the same time under the cover of the picture, so called perspective hologram. There is also a transmissive hologram, which is plated with a multi-layer transparent medium on the hologram stripe, so that it can only see the hologram at a certain angle, and the exchange angle is almost a layer of transparent film, and the following is shown. The hidden picture and text, its performance is better than the former.

Bar code anti-counterfeiting technology

Bar code is a group of parallel lines with different widths according to a specific format and spacing of the combination of symbols, representing a variety of digital and text information, can contain the type of goods, code, specifications, and manufacturers and other information, with input and read fast, accurate and reliable data and confidentiality of strong advantages. Bar code technology with anti-counterfeiting function has the following:

① Invisible bar code: This kind of bar code can "disappear" between the commodity packaging patterns, neither destroy the integrity of the commodity packaging decoration, nor affect the bar code characteristics. The invisible bar code mainly includes covering invisible bar code, photochemically treated invisible bar code and invisible ink printed invisible bar code. Covered invisible bar code uses a specific film or coating to cover the ordinary visual bar code, the human eye and the general bar code reading equipment can not identify. The use of photochemical method to deal with ordinary visual bar code, the human eye is difficult to find its traces, with ordinary light or even specific light can not be read. Invisible ink printing invisible bar code cost is low, very suitable for food security packaging.

Metal bar code: this kind of bar code is made of metal foil by electroplating, generally need to be covered with a layer of poly cool film on the surface of the bar code. Metal bar code has the characteristics of weather resistance, high and low temperature resistance, corrosion resistance, aging resistance, etc., and is interpreted by a special metal bar code reader. In addition, metal bar codes can be made into invisible bar codes.

combined anti-counterfeiting technology

Combined anti-counterfeiting refers to the simultaneous use of two or more anti-counterfeiting technologies to improve the difficulty of imitation and easy identification of anti-counterfeiting products. Combined anti-counterfeiting can be roughly divided into two categories: one is multi-functional anti-counterfeiting technology, which can develop anti-counterfeiting products, such as self-checking laser holographic anti-counterfeiting mark, uncovering the surface composite laser holographic film mark, and exposing a graphic mark on the bottom layer. The graphic mark can be printed with anti-counterfeiting ink, thus achieving double anti-counterfeiting effect. The other is the combination of anti-counterfeiting packaging, which refers to the use of multiple anti-counterfeiting technologies in the same commodity packaging to increase the anti-counterfeiting ability of the commodity packaging and minimize the degree of imitation or counterfeiting of the commodity packaging. The essence of combined anti-counterfeiting packaging is based on commodity packaging materials or containers, through the organic combination of packaging materials (including ink), packaging identification, packaging structure, packaging printing and other anti-counterfeiting technologies to effectively achieve the anti-counterfeiting effect of commodity packaging. Combined anti-counterfeiting packaging has been widely used in cigarette, wine, cosmetics, food and other commodity packaging.

destructive anti-counterfeiting technology

Destructive anti-counterfeiting packaging is one-time anti-counterfeiting packaging. It relies on the one-time use of packaging materials for anti-counterfeiting. The packaging materials are destroyed after completing a packaging function and cannot be reused for the packaging of the same product. If counterfeiters want to counterfeit the product, they must purchase the packaging or produce the packaging. Because they need to pay a higher price, the emergence of counterfeit products is suppressed. Destructive anti-counterfeiting packaging includes destructive packaging boxes, packaging bottles, packaging containers, plastic packaging films, labels, etc.

Text Microform Anti-counterfeiting Technology

Text microfilm technology is an aspect of anti-counterfeiting technology, is an integral part of the secret anti-counterfeiting. It is printed on the label after the text is reduced according to a certain proportion. When the text is made, some dark notes are made in some parts. These dark notes are difficult to be found after microminiaturization. Only under specific instruments can its traces be found, thus forming the secret of anti-counterfeiting. The combination of text microfilm technology and computer technology may form a new anti-counterfeiting technology. The positioning of the text microfilm anti-counterfeiting technology is based on the secret anti-counterfeiting, which is used more in the early anti-counterfeiting packaging. The main disadvantage of this technology is that it is not easy to be identified, and the popularity of copiers that can scale at any scale has affected the use of this technology to a certain extent. However, with the popularization and application of computer reading system, the combination of microfilm technology and computer reading technology can improve the complexity of microfilm technology, so it is possible to make the traditional microfilm anti-counterfeiting technology glow with new vitality.