Coating knowledge: conductive ink and RFID antenna printing

Core tip: with the rapid popularization of RFID technology, some large ink manufacturers also timely launch new conductive ink, further promoting the development of RFID market It can be said that one of the key factors to promote the success of RFID market is the successful development of conductive ink Conductive ink is a kind of conductive composite material which is composed of metal conductive particles (silver, copper, carbon, usually silver) dispersed in the binder After printed on the substrate, it plays the role of wire, antenna and resistance The ink can be printed on flexible or hard materials (paper, PVC, PE, etc.) to make printed circuit After drying conductive ink Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Paint Home News: with the rapid popularization of RFID technology, some large ink manufacturers also timely launch new conductive ink, further promoting the development of RFID market It can be said that one of the key factors to promote the success of RFID market is the successful development of conductive ink Conductive ink is a kind of conductive composite material which is composed of metal conductive particles (silver, copper, carbon, usually silver) dispersed in the binder After printed on the substrate, it plays the role of wire, antenna and resistance The ink can be printed on flexible or hard materials (paper, PVC, PE, etc.) to make printed circuit When the conductive ink dries, the distance between the conductive particles becomes smaller, and the free electrons move along the direction of the external electric field to form a current, which has good conductivity and can receive the RFID special radio frequency signal A good conductive ink formula is required for the printed RFID tag antenna The printed ink layer has the characteristics of strong adhesion, low resistivity, low curing temperature and stable conductive performance According to the analysis of nanomarkets market research company, the conductive ink market will develop into a very large industry By 2015, the market value of conductive ink will be three times of the current value, reaching US $2.4 billion Due to the attractive market development potential, ink manufacturers swarmed in and began to set foot in the conductive ink business, hoping to get a piece of it Without the development of conductive ink, there is no application of printing technology in RFID tag manufacturing Although the RFID market has been growing, the long-term expected substantial growth still depends on the reduction of RFID label production costs and its large-scale application in general commodities Printing conductive ink will be an ideal solution to reduce the production cost of RFID tags At present, the conductive ink used for RFID antenna printing only accounts for a very small part of the whole conductive ink market But industry insiders believe that in the next 10 years, the share of conductive ink used for printing RFID antenna in the whole conductive ink market will maintain a rapid growth, at the same time, the share of conductive ink in the whole ink market will also be greatly increased At present, the more successful application field of RFID technology is smart card, which adopts HF RFID technology The most prominent feature is that the reading distance is relatively short, the cost is low, the reliability is high, and it is more suitable for IC bus card and bank card At the same time, the demand for long-distance reading system is also very strong in all walks of life, which promotes the application of UHF RFID technology In addition, UHF RFID tag can replace traditional barcode in the field of supply chain management and be used for product tracking and identification However, if UHF RFID tags and related systems want to obtain large-scale commercial applications, they must overcome the biggest obstacle of high production cost of tags For a long time, etching is the most commonly used method to make RFID antenna Etching RFID antenna must go through two processes: dry etching and wet etching, so it is difficult to reduce the production cost At the same time, etching RFID antenna also needs to go through chemical treatment process, which will produce a lot of waste liquid, so etching RFID antenna is considered to be a very environmentally friendly process Conductive ink is considered to be the only technology that can win global recognition The method of printing RFID antenna with conductive ink only needs to go through the dry process, which will not produce a lot of waste liquid like the etching process It is considered to be a more environmentally friendly and efficient process In addition, printing RFID antenna with conductive ink can achieve mass production, and the scrap rate is relatively low, and the antenna performance is stable, which can also greatly reduce the overall production cost of RFID tags Therefore, it can be said that printing RFID antenna with conductive ink will be the first choice for manufacturing HF RFID and UHF RFID antenna In addition, the use of screen printing conductive ink technology can also reduce the production cost of RFID tags, one of the reasons is that the investment of imported printing equipment is much cheaper than that of imported copper etching equipment In addition, due to the printing process without additional investment to meet the environmental requirements, the production cost and equipment maintenance cost are lower than that of copper etching method, thus reducing the cost of RFID tags Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint 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