When the conductive ink is printed, the ink will penetrate into the capillary holes, causing the antenna impedance of the electronic tag to be broken down. Yu concave dam turbulence? Peripheral caries? Cockroach rose die? Fatty? Noisy plaque? 蛩 � / P>
Foreword
With the growth of the RFID market, the use of electronic tags has also grown exponentially, but the real obstacle to the development of the RFID industry is that the price of electronic tags is still high, and printed electronic tags are inherently cost-effective. Expected by the market.
Printed electronic technology is widely used in the fields of soft electronics, organic displays, EMI prevention, paper batteries, and RFID. Among them, RFID passive electronic label printing faces the most technical difficulties.
Printing process
The main ink used in RFID passive electronic label printing is commonly known as "conductive silver glue". Due to the need to use silver powder materials for printing, the recent rising price of raw materials has made the cost of silver glue high, which led to the original sibling Xiu Pufei killing the home and climbing the frequency: ⅹ Block the horoscope? Also? 㴠独 纯 From: ⑹ Jiangmuyingying ?? Yun Qiao stupidly blowing the picture Yanyingying nickname ┑ 淖 罴 呀 饩 龇 蓰? Arc?
In the printing process, there are four major types of printing transfer inks: screen printing, gravure printing, letterpress printing, and inkjet printing. The characteristics, quality, and cost of each printing process are also different. The consideration of the characteristics of the printed substrate, the process of electronic label printing and the combination of material characteristics will determine the suitability of various electronic label prints.
Screen printing
The printing process of RFID electronic tags? What is the address by borrowing? The screen printing is shown in the screen printing is to conduct conductive ink from the other side of the screen with a scraper to sweep the ink through the screen, and The ink penetrates through the mesh gap of the pattern on the screen and sticks to the printed substrate. The ink viscosity of screen printing is high, and the printing film thickness can be up to 100μm, while the printing film thickness of RFID electronic tags is only about 8 ~ 12μm, and then drying can be achieved by UV, IR and hot air.
Figure 1. Screen printing
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