Application of Ink Technology in Anti-Counterfeiting Packaging

Ink technology is a major aspect of the application of printing technology in anti-counterfeit packaging. The application of ink technology to anti-counterfeit packaging is accomplished by changing the ink formulation or by adding special sensitive materials, such as photosensitive materials, heat-sensitive materials, magnetic materials, etc., to ordinary inks. The trademarks printed with these special inks have some unique features. Consumers can identify the authenticity of goods based on different characteristics, and the trademarks themselves are not easily copied. Therefore, they have the effect of anti-counterfeit packaging.

There are many factors that need to be taken into consideration when using ink technology to reasonably apply to anti-counterfeiting packaging and obtain the desired anti-counterfeit effect, including the choice of printing methods, the selection of printing machines, the processing of printed parts, the use of ink base materials, and the cost of printing. Enterprise technology level and so on.

1. Anti-counterfeit packaging commonly used ink

Anti-counterfeiting packaging inks are used to ensure that the printed products have certain anti-counterfeiting capabilities, and appropriate amounts of special substances are added in the preparation of printing inks, and the printing inks exhibit special properties under certain conditions after printing. Varied special materials have formed a variety of anti-counterfeit packaging inks.

1.1 thermal ink. Thermal ink pigments can change color depending on the temperature, and different temperatures show different colors. There are many kinds of pigments that can exhibit the thermal discoloration characteristics, and there are commonly used crystal structure change types, thermal decomposition types, and crystal transfer types. At present, there are many kinds of thermal printing inks on the market, which can basically meet the requirements of thermal discoloration. However, the characteristics of different types are quite different. For example, the liquid crystal type ink has better discoloration, the metal chromium salt type ink has stronger light fastness, the printing ink of fuel type has bright colors, and the packaging and decorating effect is good.

1.2 magnetic ink. Magnetic ink pigments are magnetic materials, commonly used are three iron oxide, etc., the residual magnetic properties are relatively high, continuous material is generally alkyd resin, you can also add other pigments in the magnetic ink to get a variety of colors of ink . Magnetic ink is used in anti-counterfeit packaging to form a secret anti-counterfeiting function. In a certain part of the packaging with magnetic ink printing, with special means can be detected, thus forming a secret anti-counterfeiting.

1.3 Fluorescent inks and phosphorescent inks. The fluorescent ink is made by dissolving the light material in the corresponding resin. Fluorescent pigments are generally larger in size, and the types of binders are also more. Different binders will produce different fluorescence. When using fluorescent inks, they should ensure that they have sufficient agricultural quality. The ink layer on the printed products should be thicker. In order to ensure a satisfactory fluorescence effect. Prints printed with fluorescent inks are brightly coloured and have a good decorating effect. They emit sparkling fluorescence under the influence of visible light and ultraviolet light.

The way to overcome the above drawbacks is the online use of security ink. Enterprises can arrange printing machines directly on the packaging line. Anti-counterfeiting inks can be prepared by themselves. According to different dates, different products can use different recipes. This can ensure the safety of ink formulations and there is no drawback of the inflow of trademarks into other people's hands. . In fact, in all anti-counterfeiting methods, secret anti-counterfeiting is the most reliable one. Many of the world's largest companies rely on secret prevention and anti-counterfeiting to keep their own brand names. Coca-Cola Company and Jianlibao Company all rely on secrets. Security.

2.2 With the passage of time, every type of security ink will lose its novelty, but as long as we use it properly, it will extend its useful life. The use of anti-counterfeiting inks is a good approach. There are two main methods for composite use of anti-counterfeiting inks. One is to combine the characteristics of two or more anti-counterfeiting inks to form a new anti-counterfeiting ink; the second is to use characters or Patterns are printed with two or more security inks. For example, if you print a barcode-like pattern, you can use a magnetic anti-counterfeiting ink to print the pattern strips, and print the pattern empty with each ink. Obviously, this will increase the technical content of the security ink. If this composite method can be used online, it will receive a better anti-counterfeiting effect.