Application of the hottest label in anti-counterfe

2022-08-08
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Application of labels in the field of anti-counterfeiting at present, labels are not only a single carrier for recording commodity information and promoting commodities in people's impression, but also are developing in a multi-functional direction, especially in the fields of tobacco and alcohol, food, drugs, electronic products, article identification and logistics. This trend is becoming increasingly obvious. The market demand for multi-functional labels makes some label printing enterprises realize that only by constantly carrying out technological innovation and developing new products can they maintain their dominant position in the fierce competition

as an anti-counterfeiting label with independent or comprehensive functions, at present, it has developed into an independent category, ranging from the comprehensive anti-counterfeiting sticker visa with high safety to the waterproof warning and warranty label with single function, which requires a certain anti-counterfeiting function. This series of technical features of anti-counterfeiting labels have formed the general rules and requirements for label design

the earliest anti-counterfeiting labels in China appeared in the mid-1980s and were used in the fields of alcohol, food, medicine, health products, cosmetics, computer software and hardware products, sporting goods, auto parts, agricultural materials, etc. As an economic, practical and convenient means of anti-counterfeiting, anti-counterfeiting label has a broad space for development in China

the development and application of new anti-counterfeiting labels are based on the market demand and the development of related disciplines, involving high-tech fields such as physics, chemistry, optics, electronics and biology, and even atomic energy. Their anti-counterfeiting efforts are also increasing. Gravure latent image label, dripping vanishing label, holographic hot stamping label and thermochromic label all rely on the development of relevant materials and technologies. A German company has recently developed a new anti-counterfeiting label system, which uses a laser beam to inject data information into the label in the form of micron sized light spots, and identifies the authenticity of the product by identifying the hologram formed by the light spots. This system is the product of the combination of polymeric materials and holographic technology

for label application, it is necessary to prevent the label from being removed from one product and then pasted onto another product. In order to achieve the purpose of anti-counterfeiting, the label itself must have corresponding anti-counterfeiting functions, such as anti-counterfeiting technologies commonly used in Securities printing, such as watermark, micro text, fluorescent fiber, Newcastle pattern, relief latent image, etc. The use of anti-counterfeiting inks such as photochromic inks and thermochromic inks can also make the printed images show different colors at different viewing angles or at different temperatures, so as to achieve the purpose of anti-counterfeiting; In addition, holographic images can also be used on the label for anti-counterfeiting. Through the combination of two-dimensional and three-dimensional patterns, diffraction patterns or three-dimensional images, it is possible to diversify the label. For example, dynamic images and hidden marks have good anti-counterfeiting. Machine readable labels can use extremely small nanoparticles, special transparent pigments or DNA markers (DNA identification) that cannot be seen by human eyes, read unique information through special instruments, and identify the authenticity of products or certificates. The code anti-counterfeiting label can be queried by dialing the password or number to identify the authenticity of the product

the following is a brief introduction to the labels commonly used in the anti-counterfeiting field

1. Anti uncovering label

the anti uncovering label is pasted on a base material and lifted after a certain period of time. The text hidden on the back of the label face paper will be separated from the label surface material, leaving clear handwriting on the surface of the base material, so as to achieve the purpose of anti-counterfeiting and anti uncovering. The identification of the label does not need any instruments or tools. Once lifted, the authenticity can be identified. It is non reusable, and whether it has been lifted is effectively controlled by strong adhesive. The label surface can also be printed with different characters, patterns, marks or bar codes according to customer requirements, and anti-counterfeiting secret marks can also be added

2. Uncovering anti-counterfeiting label

(1) laser uncovering label

this kind of label is a double information carrier of holographic image and printing and inkjet developed on the basis of molding holographic technology and multi-layer composite printing technology. The label is composed of three layers: surface layer (removed layer), secondary layer (Legacy layer) and release paper. The surface layer is loaded with molded hologram, which has all the characteristics of holographic anti-counterfeiting marks; The sub layer is an extremely thin film on which anti-counterfeiting codes are printed. This kind of label has stable technology, comprehensive anti-counterfeiting function and wide adaptability

(2) paper uncovering label

this label is made of special technology and materials and consists of four layers: surface layer, sub layer, mucosa and release paper. The surface layer is made of various anti-counterfeiting materials, such as copper plate calendering spray film, fluorescent colored paper, fluorescent shading paper, etc., which can be printed with relevant characters and patterns; The second layer is a very thin transparent brittle film, printed with anti-counterfeiting code; The mucous membrane is composed of special transparent adhesive, and different mucous membranes are used according to different surface materials of the pasted objects

(3) the scratch off label of covering film

is also called "scratch le". This label is composed of three layers: covering layer (coating), secondary layer and adhesive layer. The covering layer is a metal powder coating or an ink layer on which text patterns can be printed; The second layer is colored coated paper or special anti-counterfeiting paper, with code printed on the paper surface and glue coated on the paper bottom. This mark can be connected with the label or outer package of the commodity

3. Electronic tag

rfid (radio frequency identification technology) security seal combines RFID technology with the initial opening indication of the seal, and uses the magnetic field to communicate with the corresponding reader through the embedded objects (chips and antennas) integrated therein. The data field determined on the microchip can be erased, modified and read out at any time, and there is no contact between the data carrier and the reader. More information can be collected while identifying data, so as to simplify the production process and complex logistics management. This kind of label is mainly used in places where commodities must be visible without manual handling and storage. In addition, RFID Security seal is also used for inspection of imported goods in the form of tax stamp

4. Waterproof label

waterproof label is also called "water stain warning must be marked by some means" or "water bleeding warning mark". It uses a kind of special ink sensitive to water to print a layer of red strips or letters with clear edges on the special self-adhesive paper. This kind of identification can be attached to a certain part of the product as a part, such as the inside of the host and the outside of the battery. This kind of sign will not change color when it does not encounter water, and the edge is also very clear. Once it encounters water, the edge color will spread, which is commonly referred to as "bleeding". With this label, there is a relatively scientific basis for judging whether key components such as, battery and LCD display screen are flooded. At the same time, this waterproof label is also applied to the safety control of electronic products in ocean transportation, and serves as the basis for claiming WPA in transportation insurance

5. Fragile label

fragile label is printed with special fragile self-adhesive paper. Each business can use this label for the products sold to provide warranty, such as computer accessories, complete machines, various high-end electrical appliances, and other communication products. By indicating the date of sale and warranty period on the label, it plays a role in safeguarding the interests of the businessmen who start the oil pump to release air. When the label is attached to the substrate and then lifted, the material will break irregularly and cannot be restored to its original state, which indicates that the product package has been disassembled

6. Comprehensive anti-counterfeiting label

comprehensive anti-counterfeiting label usually refers to a label that includes material selection, plate design, ink selection, printing process and other security measures. For example, watermark paper, fluorescent fiber paper and safety wire anti-counterfeiting paper can be selected; Plate design can design exquisite anti-counterfeiting plate patterns through a professional plate design system; The ink can choose fluorescent color changing ink, dripping color changing ink, thermochromic ink and visual color changing ink with high safety; Spot color safety printing can prevent the expert group from thinking that the innovation center has successfully completed all tasks in the training period and has not been scanned and copied; Press the anti stripping stripes to prevent reuse. In addition, a coding query system can be added to facilitate macro-control and management through or computer network query

with a number of powerful foreign label printing enterprises entering the Chinese market, new materials, advanced printing equipment, processing technology and corresponding technical services have also been introduced into China. Multi layer labels, double-sided labels, film labels, electronic labels, smart labels and other labels manufactured with new materials and new processes will also be more and more favored by people. At the same time, the market has put forward higher requirements for the label industry, and each enterprise is facing more and more severe tests, such as the improvement of product quality, the flexibility and diversification of production, the development of new varieties, high production efficiency, low production cost, etc. With the continuous improvement and improvement of the above factors, the application field of labels will continue to expand, and China's label industry is bound to usher in greater development space

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