Electronic ink printing characteristics and applied printing system

With the continuous network and digitalization of printing technology, digital printing has begun to spread at home and abroad, and a new type of ink suitable for digital printing machines-electronic ink, has also been used by people. Electronic ink contains charged liquid ink particles, which makes it possible to electronically control the position of printing particles in digital printing. Electronic ink can reach very small particles (1 microns to 2 microns), such small particles enable printing to achieve higher resolution and smoothness, sharpen the edges of the image, and form an extremely thin image layer.

Electronic inks are now working in the following areas:

(1) Standard basic color CMYK;

(2) The wide-color gamut six-color setting adds orange, red and purple, making the color reproduction ability much higher than the original four-color based color reproduction ability;

(3) Indigo spot color system compatible with Pantone;

(4) Opaque white coating of colorless printing materials;

(5) Fluorescent ink. Indigo's color digital printing presses provide a unique combination of functions. The printing presses all use electronic inks (that is, Indigo's unique liquid inks).

Electronic inks generally have the following advantages:

(1) High brightness, high definition and durability. Manufacturers use the same ingredients as traditional inks, but only charged inks to make electronic inks. Therefore, electronic inks are similar to traditional inks printed on paper, but when matched with paper, the brightness and contrast are very high. And can have a 180-degree viewing angle.

(2) Low energy consumption. Once the white paint particles are driven to a state where an image has appeared, the image may disappear (because there is no additional energy support), but this did not exist for electronic ink.

(3) Strong printability. Electronic ink can be applied to almost all materials, it can be printed to textiles, plastics and many other materials. We know that the LCD is displayed on glass, but it is heavy and fragile. The electronic ink can be displayed on the plastic surface, which makes it ultra-thin, flexible and not fragile. Electronic ink is an ink. If someone accidentally gets splashed by electronic ink when entering the laboratory, the person becomes a walking display.

Application model:

HP Indigo Digital Printing System

All HP Indigo digital presses use electronic ink: HP Indigo ’s unique liquid ink. Electronic ink is liquid charged particles. The most fundamental core technology of HP Indigo is liquid HP Indigo electronic ink technology, which is the basis for distinguishing it from other digital printing technologies. The working principle and design of HP Indigo digital printing machine must be based on the characteristics of HP Indigo electronic ink. The imaging process of a certain color of the HP Indigo digital printing machine is roughly like this: First, the imaging board is evenly charged, and then the laser head discharges the imaging board with a laser beam according to the dot format of the color (imaging board) The electric potential of this point becomes zero), and then the electronic ink of this color will be attached to the imaging area of ​​the imaging plate under the action of the electric field force to form an image layer. The image layer is also transferred to the blanket through the potential difference between the imaging cylinder and the blanket cylinder. The electronic ink partially dissolves after heating on the blanket, transfers to the substrate through pressure, and then solidifies and adheres to the substrate. The imaging process of other colors is the same, and it is implemented on a set of rollers (color conversion technology).

Gongyao + Ryobi Liquid Electronic Ink Digital Printing System

This printing press is a B2 format digital printing press created by RYOBI. This system is a high-precision equipment created by Ryobi and Japan Miyagi to adapt to the development of the current digital printing market. It uses Ryobi offset printing equipment units and high-definition ultra-fine particles of Miyagi. Liquid ink electronic photo technology can realize high-speed, large-format, high-precision personalized printing production.

The new system currently has a printing speed of 6000 prints / hour, and will be upgraded to 8000 prints / hour later. The maximum printing paper size can reach 788 × 600 ?, using the offset printing unit design, the registration is very accurate, the image resolution can reach 1200 × 1200dpi, the maximum paper thickness can reach 0.4 mm, and then it is expected to be upgraded again, which is very suitable for packaging printing Field enterprises. In addition, this system can be configured according to the needs of customers. It can not only print different personalized variable data sheets, but also digital print production of 50-500 sheets of images with one change. These characteristics make this device very advantageous compared to the digital presses currently on the market.

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