Changes from traditional tags to RFID tags
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At present, RFID radio frequency is mainly used in logistics chain management and Internet of Things. Since RFID tag is a non-contact tag, it is a tag for item location in logistics chain management, and it is also a tag for item shunt management. It is expected that RFID technology will be widely used in express delivery and postal services, air transportation industry, and internal logistics management.
So, what does RFID technology mean?
RFID radio frequency identification technology is a non-contact automatic identification technology. It automatically recognizes target objects and acquires relevant data through radio frequency signals. The identification work can work in various harsh environments without manual intervention. RFID technology can recognize high-speed moving objects and recognize multiple electronic tags at the same time, which is quick and easy to operate.
The working principle of RFID is that after the tag enters the magnetic field, it receives the RF signal from the reader, and sends the product information (PassiveTag, Passive Tag or Passive Tag) stored in the chip by the energy obtained by the induced current, or actively sends a certain Frequency signal (ActiveTag, active tag or active tag); the reader reads the information and decodes it, and sends it to the central information system for data processing.
RFID technology is used in the field of label printing to achieve the anti-counterfeiting function of smart packaging. Tag: consists of a coupling component and a chip. Each RFID tag has a unique electronic code attached to the object to identify the target object, commonly known as an electronic tag or a smart tag. RFID electronic tags are classified into active tags, passive tags, and semi-active semi-passive tags.
RFID technology is widely used in wine packaging labels in various forms and with anti-counterfeiting effects.
The RFID tag chip has a small volume, a thickness of no more than 0.35mm, and a small surface area of ​​up to 3mm2. It can be printed on paper, plastic, wood, glass, textiles and other packaging materials, or directly on the label packaging surface. The standard machine attaches it to the product. There are three main types of RFID tags used in alcoholic products: adhesive RFID tags, RFID tags embedded in the package, and RFID tags embedded in the caps. These RFID tags have their own characteristics. On the basis of the common tag function, the anti-counterfeiting effect is also obvious.
The anti-counterfeiting data of the RFID tag is generally written into the RFID tag by the fixed reading and writing device installed on the production line, and the information is automatically recorded. The information written includes production time, batches, shifts, and so on. Each RFID tag automatically sets a random access password after the information is written, preventing the data inside the tag from being modified, and the information written into the wine item is automatically entered into the database for inquiry.
Along with advances in RFID and NFC technology, experts have proposed a new technology that recognizes the RFID label as being printed in writing.
RFID and NFC technologies are being developed on a large scale, and this technology has various development potentials. RFID is used in all aspects, from label cattle to some products that are sold on the market. Now, as handset manufacturers put RFID and NFC readers into mobile devices, more complex and more expensive parts of the technology have been implemented into RFID tag products. The cost of adding new labels is expensive, so the new technology should allow users to actually print the labels on paper with a thin layer of aluminum.
This simpler approach means that RFID fits more objects than previous technologies. New technologies show that only a small fraction of the cost of technology in the past is used. The traditional printing method of press releases requires processing, such as etching and plating on metal surfaces; screen printing and flexographic printing, which are widely used for surface printing of materials such as paper. The University of Montpellier has validated a method of coating a small amount of aluminum on paper with a thermal evaporation processor that can be used to make RFID tags. Once the label is printed on paper, it can also be used for stickers, which makes it easier to apply the label to the product.
Many labels are made of precious metals such as copper and silver. Relative to these precious metals, most of the aluminum used in the new process can be afforded. The current demonstration uses prototypes, RFID tags are also available, and the readers go well when reading NFC tags. According to the team, they will optimize the system on the basis of the original to achieve further improvement and improvement of performance. Once this technology matures, and most companies start to be interested in it.
Summary: RFID technology is microelectronics technology. RFID electronic tags are actually the edge products between the printing and microelectronics industries. Therefore, in the production process of RFID electronic tags, printing companies must implant RFID chips in the original label printing process. At the same time, data input to the RFID chip is required, which is a step beyond the traditional printing industry. At the same time, RFID electronic tags will also be a small investment in the use process, which is a bottleneck in the promotion of RFID electronic tags in China.
(Information from Sohu, Keyin Media, China Packaging Network)