What are the types of ink used in inkjet printers?

Answer:

Thermal transfer ink thermal transfer ink, also known as sublimation ink, thermal transfer ink can not be printed directly on the terminal medium, is to print the ink on the special paper, by printing the paper on the terminal medium, through Heating, in the shortest possible time will be dedicated to the image of the paper transfer to the terminal medium, so you can in such as porcelain, metal, silk, chemical fiber fabrics and other materials to make beautiful patterns, very suitable for personalized development Market needs. The current thermal transfer ink in the desktop printer is mainly used for Epson printers.

When the larger pigment aggregates are exposed to ultraviolet light and ozone, only the surface layer is destroyed, the inner layer of the colorant still retains its color characteristics, and therefore has a higher light fastness to weather fastness. And because the pigment is not soluble in water, in the printing paper encountered moisture when the water resistance is strong. Pigment ink in the water suspended in the particle size of the visible wavelength range, the visible light scattering, so that the transparency of the ink affected; also because the pigment is granular, can not fully display the visible absorption of light characteristics, so bright color The degree of loss. Stable storage and color vividness are generally affected by the fineness of the pigment so that it is generally worse than the dye-type ink, and the manufacture of ultra-fine pigments and stable dispersion of pigment in the water requires special techniques and are often costly. Through the above comparative analysis can be seen, the pigment ink than the dye ink in the photo output has a unique can not replace the advantages. With the development of pigment ink manufacturing technology, especially the ultra-fine pigment powder preparation technology and the rapid development of pigment dispersion technology in water, the pigment is more and more dispersed in water-based ink, and the result is not only ink Stability greatly improved, and its color characteristics will be more vivid. In order to solve the pigment ink in the glossy paper will be due to the diffuse reflection of pigment particles caused by reduced luster, Epson introduced the R1800 / R1900 printer, an increase of light color, to ensure a better sense of gloss.

Weak solvent ink When it comes to the solvent ink, you will think of that printing outdoor advertising with a large spray and that a bit pungent ink. Solvent-based ink because of its special ingredients so do not require the media covered with a coating, the evaporation speed The Solvent-based ink is the main component of organic solvents, are generally used ester and ketone solvents, and the process of combining the media first swell the media, and then fusion, the ink in the coloring agent and the substrate closely, so the solvent type The ink does not require the media to be coated with the coating and does the ink volatilize quickly. Solvent-based ink is a large outdoor patent, they are specifically to deal with this ink: from the nozzle to the pipeline to the final cleaning unit, all made to adapt to this ink, of course, the use of solvent-based inkjet inkjet machine produced in general Accuracy is not very high What are the attractive characteristics of the solvent ink that can produce an ink that is relatively environmentally friendly and less pungent and corroded? So the weak solvent ink is in this case began to develop space, A popular solvent ink is mainly due to the fact that weak solvent ink is not only very low taste and the ink particles are fine, the printed picture is fine and the corrosion effect is also small. It is this ink has not picky paper can print out a good photo, so it was transplanted to the desktop Epson inkjet printer, the use of weak solvent ink inkjet printer, also known as "printing press", converted into flat Inkjet printers are called "universal printers" if they use weak solvent ink. The most important feature of using weak solvent ink is that almost any medium takes care. Plain paper on the picture printing is not good, weak solvent ink can; ordinary coated paper can not print it, weak solvent ink can also be. We used a toothpick to dip ink in the iron painted on the painting, after a while is deducted by hand buckle.

Pigment Ink Pigment The colorant of the ink is a pigment that is insoluble in water and is suspended in water by means of a dispersant, so it is an opaque liquid. In other words, the first solid pigment grinding into very small particles, dissolved in a special water solvent. And dye ink into the media to form the principle of color exactly the opposite, it is attached to the media through the color of the surface to the hair color. Pigment ink chemical stability and optical stability, water resistance and light resistance, and high security, print color sharpness and high density. Although the water will penetrate the paper when printing, but the pigment is adsorbed by the paper and no longer dispersed in the water, will remain on the surface of the paper to form a stacking layer, hiding power, the requirements of the paper to reduce, so to achieve high density and high Sharpness of the print.

Dye Ink Dye The colorant of the ink is a dye soluble in water or an organic solvent. The dye ink is a fully dissolved ink in the molecular level. It is a complete composite solution and the ink is a transparent liquid. Dye ink advantage is bright colors, color reproduction ability, stability, storage is good, the cost of lower cost. The use of the probability of blocking the nozzle is very small fluency, good color gamut, colorful, especially the color of the photo bright and smooth print these two points, often become part of the reason people refused to use the pigment ink. However, the chemical stability and optical stability of the dye ink are poor, the water is not easily affected by water, the dye is moved on the printing medium, the light resistance is also poor, and the dye density and sharpness decrease with the diffusion of the dye. On the other hand, dyes in water-based dye inks penetrate with the molecules, which will result in larger print dots that affect the color density and sharpness (resolution) of the photographs. Dye on the paper for the existence of single molecules or smaller aggregates, vulnerable to ultraviolet light, ozone and other factors to lose color, make the picture lighter or completely pale.