Ink additives are used in the industry to adjust the ink to adapt to different printing conditions of the auxiliary material. Ink additives are many, generally used the withdraw of adhesive, scattered light agent, desiccant, desiccant, diluent, resistance to friction agent, cover the light oil, anti rubbed against dirty agent, inking oil etc., the following simple introduce common ink additives and method of use. 

One, the adhesive agent 

Adhesive sticky very small, generally used for lithographic printing process and printing ink to reduce its viscosity. In offset printing, due to changes in the properties of paper and printing conditions, such as ceiling oily big, surface strength, positive and negative coating condition fall phenomenon, when the desiccant excessive or printing workshop at room temperature is too low will cause paper fussed and printing stacking edition, paste version, fault, influence printing quality. Therefore, when the above phenomenon, can be added to the appropriate amount of withdrawal, can play a weakened, eliminate the role of the above fault. 

Two, withdrawal of the agent 

Dilution agent, also known as diluent, is a relatively large amount of additives used in offset printing. There are two common withdrawal agents: one is transparent oil, for the light type ink; one is the resin type of light agent, used for resin ink. If found in printing ink color is too deep can not restore the original, you can add the appropriate amount of light agent, so that it can achieve the desired results. 

Three, desiccant 

Desiccant is one of the very important printing ink additives. According to the conditions of printing and printing paper, different types of desiccant, and the use of different methods are also different. Desiccant is commonly used in red dry oil, white dry two kinds of oil, the drying of the red dry oil from the outside to the inside of the dry, white bath oil is at the same time dry. I am in print in accordance with the requirements of the dry type and color to choose the dryness of the oil press. In general, the amount of dry oil for 3% - 2%, but will be too much for the base counter, so that the drying rate decreased. 

Four, anti desiccant 

The counter is also called antioxidants, which is a kind of ink additives relative to the desiccant. In the printing process, due to various reasons often cause downtime, when the down time is longer, on the ink will dry up. In order to solve this type of problem, often to the machine on the ink to join the right amount of anti desiccant, and run a few machines, so that it is not too fast dry. 

Five, diluent 

In printing due to viscous ink over or poor quality paper, tend to produce paper szlama, off version of the fault, normal printing, at this time, in addition to adding the right amount of withdrawal adhesives to reduce ink viscosity and, addition of a small amount of thinner to reduce ink viscosity, so that the printing smoothly. More types of thinner, generally low viscosity of the six ink transfer oil.