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The special development technology of sublimation printers

posted on 2018-03-26 13:12:23

For a long time, reports on sublimation printers in the media have become less and less, and it is not an exaggeration to describe them. However, the reaction of the market is very different. The steady recovery of sales volume is unexpected.

Thermal sublimation is a very special development technology. It uses thermal energy to transfer pigments to the print media. The shade of each color is controlled by the temperature change of the print head and can have a maximum of 256 levels. Because the pigments are applied to the paper in the vapor phase during the sublimation process, the three primary colors are mutually fused to form a continuous color gamut, with a color gamut of up to 24 bits and a total of up to 16 million colors, compared to inkjet printers. More real.

 

Yellow, red, blue, this is what we call the three primary colors, any other color can be achieved through the three original colors, and sublimation printer is to achieve a variety of colors and color depth through the combination of three colors. However, in the sublimation printing process, three colors are not printed at the same time, but each time a color is used, the desired color requirements are combined by three times of printing.

It is also for this reason that the print medium needs to pass through the printer three times in the printing process, which also makes the printing process of the sublimation printer slower. After three colors, there is also a film attachment process. In other words, the special material on the ribbon is used to sublimate and adhere to the paper surface in a three-layer color to form a protective film. The film can make the color sense brighter and brighter, and has the ability of waterproof and anti-oxidation, greatly prolonging. The preservation time of the photo, which the inkjet printer cannot do.

 

 

Since the color dye sublimation printer does not have the problem of ink droplet diffusion, it can achieve good resolution. Its 300 x 300 dpi resolution can be compared with the printing accuracy of the 4800 x 4800 dpi ink jet printer, and the popular digital The output resolution of the punching and spreading machine is mostly at 320 dpi so the sublimation printer is very close to the flushing out of the output photo effect.

As for the shortcomings, the thermal sublimation printer uses temperature control. It can only print one primary color at a time, which means that every time a photo is printed, the photo paper must be input three times. Therefore, in terms of speed, the dye-sublimation printer can only describe it as slow.

In the business world, black text output is the most important, but this is precisely the biggest weakness of dye-sublimation printers. Because it mixes solid colors of four colors (cyan, magenta, yellow, and black), it is black. The purity is very low. In addition, the dye-sublimation printers are delicate, extremely sensitive to dust, and have a particularly high temperature during operation, especially when continuously printed.

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