Application cases of RFID technology in the field of clothing anti-counterfeiting
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RFID technology can effectively solve the increasingly rampant product anti-counterfeiting phenomenon. In RFID anti-counterfeiting applications, clothing anti-counterfeiting is commonly used. The clothing manufacturer puts its own unique RFID tags in the carton at the same time as the clothing, and each carton has its own unique ID code.
RFID technology can effectively solve the increasingly rampant product anti-counterfeiting phenomenon
It is estimated that the global market affected by counterfeit products has reached 300 billion US dollars each year, which is quite a staggering amount and is 10% of the total world trade. While counterfeit products flood the market, they also cause a lot of job loss. An estimated 100,000 people in the EU lose their jobs due to counterfeit products. Not to mention, the anti-inferior products of some special products, such as aircraft parts and medicines, directly threaten people’s lives.
The global market affected by counterfeit products reaches 300 billion U.S. dollars each year, which is 10% of the world’s total trade.
For manufacturers, one of the main advantages of RFID technology is that it can be directly integrated into current products, machines or equipment without major changes to current production equipment. The RFID tag itself has the function of reading and writing, can be written into the manufacturer’s unique encrypted code, and can be easily integrated into various commodities.
An important factor in whether the RFID system can be used in business is that the same type of label can be applied to different products, because this can lead to an expansion of the production scale of the label, and ultimately reduce the price of the label to an acceptable range. However, for some valuable products, the size of the label is far more important than the price of the label.
In general, the size of UHF tags is larger than that of UF tags. For small and valuable products, a slightly larger size label is likely to affect the appearance of the product. In this case, the size of the label is required to be as small as possible, so as not to cause obstacles to users. From the perspective of tag storage data, read-only tags are generally one-time programmable and low-cost, but there must be a back-up database for effective tracking.
The storage capacity of tag data that can be read and written multiple times is relatively large. Generally, all product information can be stored without the support of a backup database. This kind of label is more expensive, and the size is larger than the one-time programmable label.
For manufacturers, the last thing they want to see is that the reading of RFID data slows down the speed of production. UHF tags have a long reading distance and are generally more suitable for use on boxes or pallets; HF tags have a short reading distance and are suitable for fixed places such as shelves.
When using RFID tags, another factor that needs to be carefully considered is the material of the goods. This has a particularly great impact on products that frequently come into contact with water during use, or products where the label is attached to metal. If it is the former case, the tag must be waterproof and use HF technology; because the long wavelength of the HF system is not easy to be absorbed, high-frequency RF signals are easier to penetrate water or other liquids. HF labels have been tested on textiles and clothing for many years and have been proven to resist large changes in liquids, pressure and temperature differences.
When the label is attached to the metal surface, it will also affect the RFID system. RF signals cannot pass through metal, so when the metal material is close to the HF antenna or UHF tag and reader, the reading and writing distance of the RFID system will be greatly affected. Another adverse effect is absorption: metal can absorb RF signals, which also affects HF and UHF tags to varying degrees.
The reading and writing distance of HF tags is relatively short. When the UHF tag is far enough away from the metal surface, its reading and writing distance is relatively long; but if the tag is too far away from the metal surface, its obtrusive part will affect the usability of the tag, so the ideal height is 5mm.
In RFID anti-counterfeiting applications, clothing anti-counterfeiting is commonly used
The clothing manufacturer puts its own unique RFID read-write tags and the produced clothing in the carton at the same time, and each carton has its own unique ID code. When the production is completed to the delivery process, each carton passes through an RFID tag reader, and all carton information will be read and transmitted to the PC. The PC software system compares the actual information read with the planned delivery of the carton to determine whether it will be released. At the same time, if the carton is released, the ID number of the carton will be written into the memory of each label and locked .
Manufacturers can also write corresponding information to other data blocks of the tag through the handheld RFID device during QA inspection and other stages. In this way, the entire transportation process of all clothes from production to distribution center to retail can be recorded.
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