About the author: Che Maofeng, honorary consultant of the Association, former deputy director of Shanghai Printing Research Institute, editor-in-chief of Shanghai Printing Magazine, executive deputy chairman of Shanghai Printing Association, is still serving as a consultant in the above-mentioned units The 6th Bisheng Printing Award. "Graphics Society Monthly" No. 244 published the article "3W of RFID and New Opportunities in Printing Industry", which attracted the attention of the industry. It is reported that from September 9th to 15th this fall, the Chicago Printing and Paper Processing Exhibition in the United States will have demonstrations and lectures on RFID samples and technologies for further introduction. In general, the emergence of RFID radio frequency tags has caused a lot of heat waves in the industry, and is considered to be a solution that can replace barcodes, providing a very promising new product and market for the printing industry. In fact, RFID is not just a new label that can replace barcodes, it will bring an amazing improvement to the management efficiency of shopping malls, supermarkets, warehousing and logistics. Not to mention, recurring racks or warehouse inventories can be avoided, which saves the owner a lot of labor expenditure, and consumers go to the supermarket to buy goods, push the full car to the checkout When you are in the mouth, you do n’t have to wait in line to make payment, which is so convenient! It is no wonder that not only the printing industry, but the whole society is paying attention to the adoption of RFID technology. But this "possible" has not yet become a universal "reality" for the time being. Because RFID still has some problems that need to be discussed and improved in terms of technology and application. From the sporadic report to the solution: the conductive ink used in RFID, Flint Ink Company has taken the lead in the development, and appointed its Precisia subsidiary to develop its application, combined with the packaging and printing industry for special exploration. Karthy Marx, Marketing Director of Flint Ink Company, said: "The development from technology to market application is a reasonable and necessary process", and said: "We still don't know what else we should know." This is her One of the main reasons for participating in the organization of RFID lectures at the Chicago exhibition this fall. Kleper, a professor at the Rochester Institute of Technology (RIT) in the United States, believes that RFID is indeed a good development opportunity for printers. However, the printing of antennas used in RFID is only in the initial stage of the bull's knife. Quasi-accuracy is stricter than general commodity printing requirements. In this regard, S. Zaccone, Chairman of Graphic Solutions International, said more specifically: "When printing with conductive inks, the problems of overprint accuracy and ink coverage are the keys to success. For flexo printing: the registration is within 5 mils. Even if it is good, the RFID chip surface is generally only 20mils, but there are 4 to 10 bonding points, each of which takes up about 2mils. That is to say: the accuracy of overprinting cannot exceed 1mil, which is the limit of the resolution of conductive ink for offset printing , And beyond the limit of flexographic conductive ink resolution. In addition, RFID wafers also require 2-3 layers of complete registration requirements, which is by no means simple. And sometimes the finished wafers seem to be very good, but printing There may be pinhole trachoma in the antenna, and it will malfunction during use. For printers, RFID is certainly a new business opportunity, but only purely engaged in RFID chip antenna printing, or joint investment in processing equipment such as wafer installation, is also a question that printers should consider decision-making. It is necessary to carry out investigations and discussions with the consignor in combination with the market. The conductive ink contains more silver, not only has a cost problem, the bigger problem is the future recycling, in order to avoid environmental pollution as much as possible. With the promotion of application, the more recycling measures need to be considered. Therefore, RFID, it is not easy to say love you!
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