Factors Affecting the Use of Ink(1)

Printer working environment

Too high or too low ambient temperature, too high or too low humidity will cause some changes in the physical and chemical parameters of the ink to a certain extent, which will affect the viscosity, fluidity, surface tension, etc. of the ink, and then affect the print output effect. This factor has a particularly obvious impact on solvents, weak solvents, UV, and other inks.

In addition, for most printers that use the siphon principle to supply ink, the atmospheric pressure of the working environment has a great impact on the fluidity of ink. Generally, it is recommended to work under standard atmospheric pressure.

Image hanging environment

We should choose to use some inks with special properties according to the environment in which the picture is hung. For example, in high-temperature countries such as Thailand and India, the inks must have high-temperature resistance, UV resistance, and other properties, otherwise, it will affect the printing effect and accelerate the fading of the picture.

Media used

1. Electrostatic effect: all inks have a certain conductivity (dye inks are obvious), and the media, especially the media with poor quality, have static electricity. During the printing process, this static electricity will affect the trajectory of the ink droplets, making the ink droplets deviate from the predetermined landing point, resulting in blurred images and blurred image edges. This phenomenon is more obvious in autumn and winter festivals when the humidity is relatively low, which will make many ink users think it is the quality problem of ink.

2. Nonink absorption: poor quality media have poor ink absorption performance, and some have a large amount of oil and other impurities, which will lead to abnormal phenomena such as non ink absorption during printing, white dots on the picture, easy fading of the picture, especially in some high-temperature or low-temperature areas/seasons, this phenomenon is more common, so many people think it is a problem of ink.

Now, under the pressure of low-cost competition, most end customers who use ink choose to reduce the cost as a condition for their survival, and reducing the media cost is the most direct and obvious means. Therefore, a large number of low-cost and poor-quality media fill the consumables market, but these consumables have greatly affected the printing effect and the life of the print head, which leads to customers' pickiness about ink. However, when customers use low-quality media, it increases the scrap rate of the picture and accelerates the loss of the machine. It also indirectly increases the operating cost, and potentially affects the credibility of the customers themselves. Therefore, if possible, try to guide customers to use high-quality media.

Print head condition

The print head is the direct carrier of the ink, and the effect of the ink can be displayed through the print head. However, the print head with poor working conditions will greatly weaken the expressiveness of the ink, such as hole plugging, hole deviation, aging of the print head, low ink in the ink bag of the print head, impurities in the ink cavity of the print head, poor contact of the print head, unqualified print head, ink or impurities of other colors on the surface of the print head, etc, Both directly affect the use of ink and then affect the printing effect. Using the same bottle of ink, the output effect of the new qualified print head is certainly better than that of the print head that has been used for some time; The service life of the print head that is often maintained and maintained must be longer than that of the print head that is not maintained. So: no matter how good the ink quality is, if there is no qualified print head to match, it is impossible to have a good performance effect.

Therefore, when judging the printing effect of the printer, we should first judge the working condition of the print head from the test strip of the print head and the user of information of the print head (the test strips of different printers are different), and then we can judge other factors.

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