With the development of product economy, people's material living standards have also been continuously improved. The counterfeit and shoddy goods in the consumer market have gradually increased. Consumers are even more worried about tobacco, alcohol, beverages, pharmaceuticals, and food. Counterfeit packaging often makes it hard for people to prevent them. It not only brings economic losses to consumers and manufacturers, but also harms the health and lives of consumers. At the same time, it has brought bad influence to some brand-name products that have long enjoyed reputation. In the printing industry there is a special printing technology that is security printing.

First, security printing ink screen printing

The anti-counterfeiting inks suitable for screen printing features include thermal inks, photosensitive inks, magnetic inks, fluorescent inks, and anti-alteration inks. These inks have a certain anti-counterfeiting effect for anti-counterfeit packaging.

1. Thermochromic ink

It means that the color will change under certain external heating conditions. It can be divided into two categories: one is a plastic type, that is, once the heat source of discoloration is removed, the color of the ink can be restored to the original state; the other is non-plastic, that is, the ink color cannot be restored after the heat source is withdrawn. According to the customer's requirements, special patterns or logo plates are produced and printed with thermochromic inks to concealed parts of the package, or any designated location. When verifying the authenticity of the product, using a heat source with a certain temperature, such as lighters, matches, cups filled with boiling water, hot hair dryers, etc., baking, the marked parts immediately produce a clear color change, hidden signs also appear one after another, can be quickly identified The authenticity of the product.

2. Photochromic ink

Photochromic inks can be divided into two types: one is the common type, which refers to the color change of the ink under ordinary sunlight and intense light, from darker to lighter or darker, from colored to colorless, or no Color becomes colored. Leave the light source will be restored to the original state, this ink on the packaging application can not only improve product quality, increase the fun, highlight the anti-counterfeiting effect. At the same time, it can be printed on the shading with ordinary ink printing "fake invalid" and other words and then covered with photochromic ink to make it hidden. The other type, namely UV type, means that the ink is colorless or does not change under the illumination of an ordinary light source, but it will show bright red, orange, yellow-green and green fluorescence under ultraviolet irradiation. Like our renminbi, this type of ink is used for printing, and authenticity can be revealed under the effect of a bill validator.

3. Magnetic ink

Magnetic ink was first used to print codes on credit cards. Because the magnetic card has the characteristics of convenient carrying and quick settlement, it will be widely used. Magnetic ink is used for anti-counterfeiting packaging. It is mainly printed on a certain part of the package with magnetic ink and can be detected by special means to form a secret anti-counterfeit.

4. Fluorescent ink

The printing inks printed with the fluorescent ink are colorful and have a good decorative effect. Under the action of visible light and ultraviolet rays, they can produce glittering fluorescence. Anti-counterfeiting packaging fluorescent ink can be deployed, the best anti-counterfeiting effect. Different formulations can give different fluorescence effects. It is generally difficult to make realistic counterfeiting, thus forming a security secret.

Second, screen printing security design

The success of anti-counterfeit packaging and printing products requires packaging designers to combine various anti-counterfeiting measures to carry out a comprehensive design in an all-round way, so as to achieve a better and safer anti-counterfeiting effect.

1. Packaging security design

Now cigarette and wine packaging printing adopt screen printing method, which can form ice flower, refraction, and three-dimensional effect. The essence is in the original electronic color separation film and the screen design adopts a special design method. The use of security printing is Effective. Anti-counterfeit packaging can also use microtext, concealed place for the design of secrets and other means, is the best way to memorize the anti-counterfeiting.

2. Anti-counterfeiting design of trademarks and bottles

Trademark anti-counterfeiting designs use the laser holographic iris made of the product trademark directly imprinted on the printed material, making it luxurious and luxurious. The production of laser holographic iris is a profound technology and counterfeiting is not easy. Furthermore, it is impossible to duplicate the same trademark and original color with technology and equipment. The anti-counterfeiting design of bottle stickers is best to use disposable adhesive paper (easily shredded paper), making it impossible to expose, and it is now the most popular instant sticker of screen printing.