Characteristics and printability of the hottest el

Characteristics and printability of electronic ink

in January 2002, e ink company announced that it had jointly developed the thinnest, refreshable and portable electronic ink display media material in the world by e ink company, Toppan company and Philips company. The core technology of this material is electronic ink technology, and its basic unit for displaying information is electronic ink

electronic ink contains charged liquid ink particles, which can make printing achieve higher resolution and smoothness

characteristics of electronic ink

printing ink is composed of pigments, binders, solvents and auxiliary agents, and electronic ink is the product of high-tech development with high technical content. Electronic ink shows that the main component of media materials is spherical particles (see Figure 1), which can change the polarity of particles through electrical signals. Therefore, the surface of these media materials (originally white) can display graphic information through the transformation of particles from black to black. The position status of these balls can be automatically stored, and there is no need to increase energy or equipment when reading or displaying information. Electronic signals simplify the process of scribbling or updating signals. In addition to designing and embedding particles, electronic ink display media need to be electronically controlled

as shown in Figure 2, these particles have a transparent shell containing dark liquid (such as blue) and tiny charged pigment particles. Under the influence of the electric field, these white pigment particles move to the surface of the paper, causing the paper to turn white. If the electric field is opposite, charged white is widely used in all kinds of wood, such as plywood, particleboard, medium density fiberboard and other wood plates. The pigment particles move from the surface to the opposite side, and the surface shows dark color (such as blue)

electronic ink has the following advantages

1. High brightness, high definition and durability

the image formed by electronic ink is clearer than that formed by xerographic dry powder, which is more obvious when printing continuous tone images. The electronic ink image is clean and pollution-free, mainly because the particles of the electronic ink are small

2. Low energy consumption

computer displays, liquid crystal displays and other display media use light to express graphic information, and the generation of light depends on electric energy. Therefore, to maintain the stable display of page information, it is necessary to constantly supply electric energy in order to emit the light required for display. Electronic ink is a completely reflective reading medium, which does not need background light. Once it is displayed on the display board, it will keep the information content in a stable display state until the next display page is updated. The advantage of electronic ink is that how much power it consumes depends not on the display time, but on the number of page updates

3. Strong adaptability

electronic ink can be printed on textiles, paper, plastics and other materials. We know that LCD is displayed on glass, but the glass is heavy and fragile. The electronic ink can be displayed on the plastic surface, which makes it ultra-thin, elastic and not fragile

electronic ink and plate printing

electronic ink display media needs plate printing. Electronic ink the former expensive microcapsule color particles are suspended and dispersed in the liquid medium to form the ink in the usual sense, and then printed on plastic, fabric, glass, paper and other substrates to form the display media of information. Then apply a layer of adhesive on the display media and roll it with a rolling roller to make the display media uniformly adhere to the bottom plate to form a front rolling plate with electronic ink. The backplane is equipped with a high-resolution display array, and its circuit system is controlled by the display software to form graphics and texts composed of pixels

electronic ink is designed for acquiring and storing digital information. Electronic ink display media can be used as readers of electronic publications for downloading and reading books, newspapers and publications. It is estimated that e-books based on electronic ink technology will be used in the next 10 years

as a universal printing, plate printing is not limited by the size and shape of the substrate and is suitable for various types of inks. It is used in electronic products, signs, fabrics, ceramic paper, large-scale advertising, art, packaging and commerce

the range and application of some substrates of electronic ink and plate printing are the same. Electronic ink has a wide range of substrates, which can be printed on curved surfaces. Electronic ink is very easy to print, and can be applied to new displays/electroliquid raw materials that reach a certain pressure in the mixing head through the metering pump, such as sub displays, large display boards and billboards; Display panel that can be used for mobile, machine and instrument; It can be applied to public announcements, billboards and outdoor billboards. The author believes that with the development of technology, electronic ink will soon be used in printed circuits

electronic ink and digital printing

at present, there are roughly five kinds of digital printing machines launched by printing machine manufacturers in the world, namely digital offset printing, electronic ink transfer, electrostatic copy toner transfer, electronic printing ink jet, wax paper printing ink leakage transfer. The digital printing technology has been mature and widely used, and the electronic ink required for digital printing cannot be produced in China

Digital Express Printing is also called short edition printing. It does not need traditional printing and plate making, and directly turns pictures and words into digital information. Digital fast printing has no environmental pollution and can completely realize variable data printing. If digital printing uses professional electronic ink, the ink can be completely recycled

plate printing is developing in the direction of digitalization, automation and environmental protection. Computer direct printing technology (CTS) is the combination of inkjet technology and plate printing technology. If electronic ink is applied to CTS, new changes will take place in the digital technology of plate printing, which will be conducive to environmental protection, save materials, and promote the automation of plate printing

(compiled by Zhao Chenfei)

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