Anti-counterfeiting printing application on packaging decoration

A successful anti-counterfeit packaging printing product requires the packaging designer to carefully combine a variety of anti-counterfeiting measures to carry out a comprehensive comprehensive design in order to achieve better anti-counterfeit effect.

1. Anti-counterfeiting design of trademarks and bottles

Commonly used trademark anti-counterfeiting designs are often made by printing a laser holographic iris die directly on the object being printed, making it expensive and luxurious. Because the production of laser holographic iris edition is a kind of advanced technology, it is not easy to fake it. In addition, it is impossible to reproduce the original trademark and the same trademark with the same technology and equipment. The anti-counterfeit design of the bottle sticker is best to use disposable adhesive paper, which makes it impossible to uncover, even with vapor steaming can not be peeled off, such as the current popular special and timely stickers.

2. Anti-counterfeiting design of open structure of box cover and box bottom

The opening parts of the lid and the bottom of the box are often made of adhesive seals and seals. The one-time sealing and sealing tapes made of useful laser holographic irises can play an important role, but the packaging boxes after unsealing are not damaged and can be faked by the counterfeiters. This is extremely unsafe. At present, a novel type of cover opening and unopenable anti-counterfeiting structure at the bottom of the box has been invented and promoted to use the lid to open. The lid and the box body are sealed with a strong adhesive, and a break point is designed at the back of the box body. Indentation, die cut at the same time as the box. Consumers simply hold their hands on the lid and press the thumb at the indentation. The lid can be easily opened with a single lift and the box can no longer be used again. The bottom of the box can be designed as a non-openable structure; after the structure is formed, the strength and bearing capacity are very good, the box cannot be opened without destroying the box, and no sticking is needed, and the anti-counterfeit effect is very good.

3. Anti-counterfeiting design for decoration

Anti-counterfeiting in decorating borrows more from anti-counterfeiting technology designed for banknotes. In order to prevent counterfeiters from copying (including color copying machines) and electric extension scans to counterfeit, it is best to use a neutral tone configuration, without affecting the overall large effect, using many fine, detailed patterns and geometric pattern groups; In the design of some of the higher brightness and style requirements of elegant packaging and decorating, may wish to line the bottom of the paper with some colorless ink or similar ink with the end of the paper to form a regular dense pattern, or irregular pattern of texture; The distance is blind, the near effect is very beautiful. Not only has the quality of the goods been improved, but also the anti-counterfeiting effect has become particularly evident. Anti-counterfeit decoration can also use microtext, concealed place for the design of secrets and other means. For example, the miniaturization of some of the texts related to goods into the naked eye can only be embedded in small printable words. Or remove some of the larger and more obvious words from the brush strokes, causing people to mistakenly think that it is a point of departure for printing. Adding a few lines to the fine geometric pattern is also an excellent way to make a mark.

Second, printing paper security

Traditional security printing paper should be the first watermark paper. Watermarked paper refers to the use of technical means to put the required logos and patterns into paper during the manufacturing process. It is not easy to see in normal circumstances, and it can be seen only by transmission of strong light. Most of the larger denominations issued in China have been printed using watermark paper. Most countries’ banknotes, important international documents, facility drawings and various tickets are printed on watermarked paper. The watermark paper production process was invented by Italian papermaking experts in the 13th century. Because it integrates the complex processes of design, engraving, web making, and papermaking in the manufacturing process. Therefore, people often resort to falsification as counterfeits. Checking the watermark is also one of the most effective means to identify true and false.

Special anti-counterfeiting paper can also add a certain proportion of colored fibers or fluorescent fibers in the papermaking process, and then strictly control the formula. There are also embedded metal wires in paper, which are called safety lines. If this kind of paper is used reasonably in the packaging of high-end branded goods, it can make the goods mysterious and luxurious, and the counterfeiters may be daunting. With the rapid development of high technology, papermaking technology has also made considerable progress after incorporating similar technologies. For example, a variety of colors can be reflected in different light business card paper, pearl paper, laser iris paper, metal and paper composite gold foil paper, silver foil paper and reprocessed embossed paper, refraction paper, etc. Brilliant. If you properly grasp its performance, characteristics and purchase channels as anti-counterfeit printing paper, the resulting effect and force can not be underestimated.

Third, printing ink security

Appropriate control and use of ink materials with anti-counterfeiting effects can sometimes achieve a multiplier effect and effect.

1. Thermochromic ink

Some research institutes and manufacturers at home and abroad have successively developed thermochromic inks with different characteristics. The ink will change color under certain external heating conditions. It can be divided into two categories: one is reversible, that is, after the color change is reached, the color of the ink can be restored to its original state after the heat source is removed, and the other is irreversible, that is, the ink color cannot be restored after the heat source is withdrawn. The printer can make special patterns or logo plates according to the user's requirements. This type of ink can be used to print in hidden places or any designated position of the package decoration. The position and color of the marks can be changed at any time, making it difficult for people to forge. When verifying the authenticity of goods, heat sources with a certain temperature, such as: lighters, matches, cups filled with boiling water, hot air blowers, etc. are used for baking, and the marked parts immediately produce obvious color changes, and hidden signs are also displayed one after another. You can quickly identify the authenticity of the product.

2. Photochromic ink

Photochromic inks can be divided into two categories: one is the common type, which indicates that under normal sunlight and intense light, the ink will undergo color change, or from dark to light, from light to dark, or from colored to colorless. Or colorless becomes colored. Leaving the light source, it will return to its original shape. The application of this kind of ink in packaging and decorating can not only improve the grade of goods, increase interest, and highlight the anti-counterfeiting effect. And it is useless for the counterfeiter to attempt to copy the manuscript directly with a copy machine or extension. At the same time, it can also be printed on the bottom paper with ordinary ink, such as "fake invalid" and then cover the ink to make it hidden. When the photocopying can be exposed, but also give a fake stick. The other type is the UV type. This kind of ink is colorless or does not change color under the irradiation of ordinary light sources, but it will show vivid red, orange, yellowish green and green light under the irradiation of UV light (ie, ultraviolet light). Most large denomination banknotes are printed using this kind of ink, and the authenticity of the counterfeit banknote can be exhibited.

3. Magnetic ink

Magnetic ink is a special ink made by mixing magnetic iron oxide powder into ink.

At this stage, it is mainly used for magnetically encoded words and symbols of bank tickets, which have the effect of recording and storing information. The magnetically encoded ticket is put into the magnetic code reader to distinguish authenticity. Appropriate use on the packaging and decorating can have strong and safe security.

4. Biochemical reaction ink

The ink is mixed with a substance that can produce a biochemical reaction. This ink can be used to print an invisible mark on the packaging and on the prints that require security. Then, according to the formula selective chemical reagents, using micro-heat, wet, friction and other methods of operation, the text or pattern will be revealed. Due to the complex chemical composition, counterfeiting is very difficult. Some of the secret documents, important tickets, etc. are used in this ink.

5. LCD ink

The liquid crystal ink means that a compound having crystalline properties is added to the ink. Under the influence of weak current and temperature, the liquid crystal changes its crystal lattice and shows bright and dark patterns and colors. Prints printed with this ink can react with changes in temperature. If you print a calendar, it will show different colors as the temperature of the four seasons changes. Promote the use of packaging and decoration in the field, its anti-counterfeiting effect is incalculable.

6. Printing ink

The configuration of printing inks is mainly based on the mixing of pigments, filled sections, and connecting materials. Among them, the choice of color material is an important step in determining the hue and vividness of printed products. The deployment of ink is also a very complicated issue. Some large-scale packaging and decorating manufacturers have set their own products at a relatively large-scale and more technologically advanced printing factory. At the same time, they have customized special inks for printing of each product with the ink factory. The formulas are kept confidential by the ink factory. .

Its anti-counterfeiting effect is self-evident.

Fourth, printing process security

With the development of high technology and people's demand for high-quality packaging, the packaging and printing industry has carried out a wide range of technological revolutions. With the introduction of computer design and prepress system, it is no longer myth that the packaging and printing can design good samples and produce high-quality printing plates in a matter of hours; multi-color offset printing presses, gravure printing machines and computer systems regulate the printed products. Many people have been amazed; mutual use of multiple printing equipments and mutual infiltration of multiple printing processes have made printing products more varied and colorful. The new products printed by these new technologies set obstacles for the attempters. Because counterfeiters generally do not master these advanced technologies and equipment.

1. Plane and convex printing and multi-process printing

In general, high-grade packaging and decorating printed products are designed with a large area of ​​color blocks, multi-color sequential continuous adjustment of the screen and complex lines, patterns, etc., to a single printing method has brought a certain degree of difficulty. If the use of plano-convex printing is different, namely the use of convex presses with large pressure and even inked printing of large areas of solid color patches, the use of lithographic printing presses for the flexibility of the printing of four-color mesh reconcile complex lines. By doing so, we can use our strengths and avoid weaknesses. Its role is very obvious. For some of the more demanding and more complex printing products, it is also possible to use flat, convex, concave, peace, convexity, concave, and leaking processes. In short, the more complex the printing process, the greater the difficulty of printing the packaging decoration, the better the anti-counterfeiting effect.

2. Multi-color serial printing

Multi-color printing is also called cross-color printing, and it is generally printed on a letterpress machine. It is based on the requirements of the printing product, placing a separator in the ink tank, and then putting in a variety of hue inks. A printing process in which the ink of the ink roller is mixed and then the adjacent ink is mixed and then transferred to the printing plate. It can be printed in a variety of colors at once, and uses a soft transition in the middle. Since it is difficult to see the distance of the ink tank partition from the print, it can also play a security role. If such a process is used on a large area of ​​shading, its anti-counterfeiting effect will be more prominent.

3. Laser holographic iris printing

Laser holographic iris printing uses laser holography to make templates in shockproof rooms and transfer them to some kind of carrier through certain pressure. Its products, under the illumination of 45° point light source, can produce colorful and rainbow-like unique effects and three-dimensional images with strong three-dimensional sensation. They are highly favored by consumers and are known as ink-free color printing by some people of insight. . At present, cold press coating and direct hot stamping are used for printing. Due to the complexity of the plate making process of this technology, it is very difficult, so the anti-counterfeiting effect is excellent. It should be particularly pointed out that holography uses a laser source in a shockproof room to record the amplitude information and phase information of the light wave in a very short time, and uses the principle of interference of light to form each mass point of the scene.