Dye and pigment ink differenceDye ink has better color reproduction ability, but the printing paper is waterproof, anti-light, anti-oxidation ability is poor, photos after long-term preservation, prone to fade phenomenon. The characteristics of the pigment ink is the opposite, print the photos with good waterproof, anti-light, anti-oxidation and preservation performance, but the color reproduction capacity will be slightly worse.
Why these two inks have such a big difference in characteristics? It has to start with its structure.
Dye ink dye colorant is a single molecule completely dissolved in the ink, the colorant particles small, easy to dissolve in water or other chemical solvents. This structure makes the dye ink is not prone to clogging the nozzle phenomenon. Even blocked, clear the nozzle is also relatively simple. However, there are a large number of dye colorants dye ink hydrophilic particles, easy to dissolve. In this way, once the print encounters water, the original colorant that is fixed on the medium will dissolve again and will diffuse around with the flow of water, resulting in serious blooming. This is the main reason for the poor water resistance of dye inks. At the same time, the colorant of the dye ink is directly exposed to the air. Under the action of light and ozone, the chemical chain of the colorant of the dye may break, resulting in discoloration of the colorant and the like, which may cause discoloration of the print sheet and thus affect the preservation performance.
Pigment ink structure is the same, the colorant is a small solid particles. In order to make these solid colorants evenly distributed in the ink, but also added emulsifier, so that the colorant coated with a layer of special resin composition, with a small amount of hydrophilic particles on the resin layer, so that the ink emulsion, the colorant suspended in the ink . As the colorant does not dissolve in water, when the print version with water, the colorant does not migrate with the water, the water resistance of nature has greatly improved. The pigment ink colorants are generally highly comminuted minerals, its stability is very good, plus the outer layer of colorant coated with resin layer, in the case of sunlight and ozone, the first damage is the outside of the resin Layer, and the internal colorant is not affected, naturally not easy to produce discoloration.
Why dye ink color reduction ability than pigment ink? This is mainly due to the different choice of colorant caused. For dye inks, after decades of development, the process is very mature, you can easily use natural or synthetic methods to create a variety of colors of colorants. The traditional pigment ink is relying on grinding minerals as a coloring agent, optional raw materials is very limited, the color can not be changed, which led to the pigment ink in the inherent deficiencies in color performance. Although some pigment ink colorants can be made by grinding some non-mineral materials, pigment colorants have not yet been fully solved because of their strict requirements on colorant particle size and emulsifying effect. This led to the pigment ink and dye ink in color performance there is a certain gap. Fortunately, this difference is already very small, making it difficult to visually distinguish the difference in color between good-quality pigment inks and dye inks without direct comparison.
Choose compatible ink skills,
As pigment ink has excellent waterproof and storage properties, many consumers are very interested in it, especially for some users even for the system or the injection of ink. However, to remind everyone, if your printer was originally used dye ink, now you want to switch to pigment ink, we must be careful, especially the use of Canon, Hewlett-Packard and other users of the thermal bubble technology. This is mainly because the colorant in the pigment ink is a small solid particle having a particle diameter 50 to 100 times larger than the colorant molecule in the dye ink. Rush to use the pigment ink, the nozzle will inevitably increase the chance of clogging, coupled with pigment ink has the characteristics of waterproof, clear the nozzle is also more difficult. The Hewlett-Packard, Canon and other thermal technology using the printer, the work of high temperature and pressure may destroy the structure of pigment ink, resulting in printing is not normal or even damage to the nozzle.
How to distinguish between the purchase of pigment ink and dye ink it
For bottled compatible ink, in addition to looking at the label manufacturers, but also by observing the ink
To distinguish. Due to the fact that the colorant in the dye ink is soluble, the dye ink is transparent in appearance. The pigment ink colorant is insoluble, in suspension in the ink exists, from the appearance of pigment ink is opaque. The company is located in: