Analyze three major technologies of Nexpress digital printing machine

Kodak Nexpress is an industrial-use digital press that meets very high standards in terms of quality, stability and productivity. In 1998, Kodak and Heidelberg established a joint venture company Nexpress to develop and produce digital presses. The technology is based on Kodak's many years of imaging technology and Heidelberg's deep accumulation in the printing field. In September 2001, the first-generation 4-color color digital printer NP2100 was released. In May 2004, Heidelberg sold all of its digital printing business to Kodak. Afterwards, in early 2005, Kodak’s sole-owned Nexpress introduced a 5-color NP2100 digital press. Today, Nexpress has progressed from the S series, SE series to the SX series.

Nexpress uses advanced LED multi-position deep exposure technology, dry ink technology and magical 5th color unit cell technology.

First, Kodak LED multiple exposure technology:

In the gravure printing technology, according to the different sizes and depths of the electric carvings, the size and thickness of the ink dots are different, so that the hue changes can be achieved, as shown in the following figure.

The Nexpress digital press also changes the hue by performing a change in ink layer thickness. As shown in the figure below, at the same exposure point, the exposure intensity is different, and the thickness of the ink absorbing layer is different, so that the thickness of the ink layer changes to change the color tone, that is, a so-called multi-bit deep exposure technique. In the same plane size range, multi-bit deep exposure technology can achieve more exposure technology changes than other technologies, that is, more toner concentration changes can be achieved. Because this technology, each LED exposure unit can have 256 levels of exposure intensity changes, although the resolution is only 600dpi, Nexpress can achieve more polar tone changes in a small space.

Second, dry ink technology:

Kodak Digital Printing Dry Ink is a product that meets various stringent environmental requirements and has been certified to the DIN EN ISO/IEC 17025 standard for use in food packaging printing. Kodak SX series digital presses are Pantone-certified, Pantone chromatography files built-in, Pantone colors supported by 4-color printing and 5-color printing, and Pantone Goes systems.

SX series digital printing machine can print on various printing media such as offset paper, coated paper, sub-paper, textured specialty paper, stickers, transparencies, PVC, etc. without prior coating. Solid and reliable, long-lasting colors. According to the ISO10977 color persistence test standard, Kodak SX digital printers can maintain color for 100 years in the absence of light, 82 years in indoor light, 30 years in front light, 25 years in back light, and 584 under outdoor windows. Days, under direct sunlight for 352 days, these have a great lead.

Third, the unique fifth color group:

Kodak SX 5th color solution has a variety of applications, the basic principle is that in the 5th printing unit, can be replaced with 8 kinds of color silo (light black, transparent color, red, green, blue, embossed toner , red fluorescent toner, magnetic character toner MICR). Replacing the silo with an ordinary operator can be completed within half a minute.

If you replace the transparent toner, you can realize on-line matte film, on-line local matte, watermark, and plain paper to simulate the printing of various textured papers. If the customer chooses to purchase an offline calender, it can also achieve a brighter and more beautiful finish than the traditional UV coating. This is a brand new, very environmentally friendly coating solution.

If you change the embossed toner, you can achieve three-dimensional three-dimensional projection printing, so that prints have a tactile sense, is a very market development potential.

If you replace the red, green, or blue toner, you can expand the color space and print a larger color space than four-color printing. Especially for some customers with spot color printing requirements, these three color toners can lead to more spot colors.

If you replace the red fluorescent toner, you can achieve security printing. The toner is characterized by being transparent and invisible under ordinary light, and being exposed to the ultraviolet light and exhibiting red fluorescence to realize anti-counterfeiting, and can be used for anti-counterfeiting printing of clothing, shoes, and caps.

The various applications of the 5th color solution of Kodak SX series color digital printers can not only bring users high value-added products, but also the implementation of all the 5th color printing solutions will not affect the speed of the printing press. There is no reduction in production capacity.

As the country’s total generation of Kodak digital presses, Shenzhen Xuanjie Company reminded that when the Kodak SX series digital presses use the 5th color, the operator can conveniently switch among 8 special toners, as long as the machine is turned on. The rear of the 5th color unique powder store replacement door can directly replace the silo, without tools, can be completed in half a minute.