Overview of the most popular anti-counterfeiting s

Overview of anti-counterfeiting self-adhesive printing

1. Back printing of labels. The back printing of self-adhesive labels is a new process in self-adhesive printing, and it is also a special process. It refers to the printing method of printing ink or paint on the adhesive surface of self-adhesive materials. A small amount of words or patterns are printed on the surface of the adhesive to make it a double-sided label. When pasted on the transparent bottle or glass containing transparent liquid, the text printed on the back of the label can be seen through the transparent bottle or glass. In this way, the front and back of a label can play different publicity roles, which not only saves label materials and costs, but also makes the goods have special decoration effects. Because the structure of double-sided label has particularity, it can play a certain anti-counterfeiting role. Of course, printing some miniature words on the back or making some secret notes can achieve a professional anti-counterfeiting effect

2. Bidirectional and reverse printing of self-adhesive labels. The two-way label is different from the double-sided label formed by printing pictures and texts on the self-adhesive adhesive. It refers to printing on the transparent film for many times to make its appearance a double-sided label. Reverse label is a special case of two-way label, that is, star products such as printing reverse image on film can be described as a collection of thousands of favorites. After printing only white ink or compounded with white paper, the second layer of forward graphics and text will no longer be printed. Due to the particularity of its own printing, it has a certain anti-counterfeiting effect

3. adhesive anti-counterfeiting. As we know, the manufacturing of corrugated boxes, the processing of composite films, the sealing of packaging boxes, the production of self-adhesive, and the pasting of trademarks are all inseparable from the pasting technology. Obviously, adhesive technology can be used to achieve a certain anti-counterfeiting effect. However, there are no examples of direct use at present, so this paper only discusses the self-adhesive label

almost all packages are pasted with corresponding labels. As for self-adhesive labels, some of them are not harmful to the package when they are removed, and some of them are damaged when they are removed, which also destroys the bonded package. Obviously, the latter case achieves the purpose of packaging damage. The old packaging can't be counterfeited, which achieves the purpose of destructive anti-counterfeiting packaging

the packaging of wine boxes usually uses label adhesive cover. If the adhesive of self-adhesive label can be correctly selected, it can ensure that the label and the packaging box will be damaged at the same time when opening the box. Generally speaking, paper labels and paper packaging boxes are easier to be destroyed when opening the box. Because the homogeneous 6th material is easy to be firmly bonded, and the adhesive is also easy to select. It is difficult to stick boxes between different materials. First, it is difficult to find a suitable adhesive; Second, the bonding strength is not high enough, that is, the bonding is not firm. At present, the surface material of all wine boxes is mostly plastic film. Therefore, it is better to use plastic film for the label of wine boxes, and it is the best plastic film of the same type. In the design, we should pay attention to two points: the bonding strength between the surface material and the inner material of a wine box is lower than that of the label; Second, the tear resistance of the label is higher than that of the surface material of the wine box, which is to make it easy to damage the packaging box when opening the box

4. Destructive anti-counterfeiting of labels. That is, when consumers take goods, they destroy the labels, so that the old labels can no longer be used, so as to achieve the purpose of anti-counterfeiting. In order to achieve this purpose, we must consider the position of labels, and the development of new kinetic energy is always

① tear label anti-counterfeiting: an example of destructive anti-counterfeiting of labels. Before sealing the bottle mouth, stick the label well, place the label slightly higher, and then cover the broken cap and seal it. When the bottle is opened, the label is destroyed by the friction and tear of the broken twist cap, and the label cannot be used to achieve the purpose of anti-counterfeiting

② seal label anti-counterfeiting: use the label as a seal, with destructive anti-counterfeiting function. For example, there is a cigarette tag on every pack of cigarettes. When smoking, you first (and must) tear up the cigarette tag, so there is no problem that the cigarette tag is reused. Stick the label on the bottle and cap. The label is damaged when opening the bottle and cannot be used again. It has a destructive anti Su function

③ as a printing material, as long as the material permits, a variety of anti-counterfeiting technologies can be applied to it. For example, bar code anti-counterfeiting, anti-counterfeiting, laser anti-counterfeiting, holographic anti-counterfeiting, main anti-counterfeiting, composite printing, multi-color printing anti-counterfeiting, such as composite printing anti-counterfeiting

④ the same machine can be arbitrarily combined into several composite printing processes according to the needs of the process, such as silk printing plus flexo printing, silk printing plus gravure printing, flexo printing plus bronzing, etc. For example, silk screen printing is used in the field part of a label to avoid white dots and uneven ink color on the surface, while flexographic plate dot printing is used in the eye tone image and text part to improve clarity. Through composite printing, the label has a strong three-dimensional sense and clear layers, which not only has good quality, but also lets the counterfeiter not know its specific printing process, so as to play an anti-counterfeiting effect

⑤ printing with a variety of anti-counterfeiting technologies on self-adhesive materials can achieve the purpose of anti-counterfeiting, and anti-counterfeiting self-adhesive materials increase the anti-counterfeiting ability of self-adhesive labels. At present, there are mainly the following kinds: fragile paper self-adhesive materials. The easy impact experiment 1 is generally an experimental method to clarify the safety coefficient, credibility and effectiveness of goods when military and civil machinery and equipment bear the impact or efficacy of external forces. Broken film self-adhesive materials, word film anti-counterfeiting film self-adhesive materials, composite fabric self-adhesive materials, safety anti-counterfeiting self-adhesive materials, safety label materials, no fluorescence Paper fluorescent paper self-adhesive material

among them, the surface material of the first two materials is very fragile, and the adhesive with high viscosity is used, which is greater than the strength of the paper itself. Therefore, the labels made with them cannot be removed after being pasted on the goods, and can be used for one time, so that counterfeiters cannot use the labels of genuine products to promote anti-counterfeiting products. The word film anti-counterfeiting film adhesive material is a PET film processed by a special process. Its surface is first printed with "VD" or other words before gluing. The adhesive also has strong viscosity. When the label made by it is pasted on the commodity and then opened, the words such as "VD" pre printed on the glued side of the film will be separated from the label surface material, and can be left at the labeling part of the commodity as a sealing label, It can verify whether the product packaging has been removed, so as to achieve the purpose of security and anti-counterfeiting. The anti-counterfeiting principle of composite fabric adhesive material is similar to that of word film anti-counterfeiting film adhesive material. However, the composite fabric layer is a double-layer polystyrene formed by compounding the transparent polystyrene film on the white polystyrene expanded material. When the label made by it is pasted on the commodity and then opened, the double-sided layer material is layered, and the expanded layer is still firmly adhered to the surface of the commodity, which has proved that the package has been removed. Security anti-counterfeiting adhesive material is a special metal film adhesive material, and its hologram can be designed according to the needs of users. Security label is a kind of magnetic label used in stores and supermarkets. The label is equipped with metal conductors. After shopping and payment, electric induction can be used to demagnetize the label in large quantities. The label that is not demagnetized will automatically turn on the alarm bell when passing through the security door, which can effectively prevent goods from being stolen. The face paper of the label made of non fluorescent and low fluorescent paper self-adhesive materials does not contain or only contains a small amount of fluorescent substances, which is specially used for the printing of UV photosensitive ink, and shows the secret mark under the irradiation of UV lamp, so as to achieve the purpose of anti-counterfeiting

source: China anti counterfeiting Report