The hot summer is coming, the majority of offset printing machine users are still pay more busy, some users may be timely for customers to provide satisfactory prints, and other users may print quality unsatisfactory and incessantly of complain of suffering, or even abuse; then the summer printing exactly what problem? How should we solve it? Let us explore the following.

Easy dirty version

1, summer temperatures are high, compared with other seasons, the water control should be appropriate to increase, which is to increase the pressure on the water roller; water to avoid dirty version;

2, strictly control the temperature; the printing environment should be controlled at 10-28 degrees, the best temperature in the 15-25 degrees

And is best not more than 28 degrees, if conditions allow, the best in the air-conditioned room for printing, in order to control the temperature; don't really have the conditions, it must be the machine moved to a cool place to.

3, the humidity control; humidity and water control is the inverse proportion; that is, the greater the humidity, water control should be reduced; generally speaking, the suitable environment for the relative humidity control in the relative humidity between 50%-85%;

Two, ink emulsification

1) high temperature in the summer, ink thinning; at this time, it should be added to the ink thickening of the 0 ink transfer oil; at the same time, considering the factors, the water control should also increase;

2) some operators may the ink in the refrigerator ice, so that due to the reduced temperature to thicken the ink; however, because in printing ink temperature will gradually increase. Therefore, this method just in the short term effectively;

3) in the choice of printing ink, it is best to choose oily smaller, suitable for summer printing ink; if the ink is too thin, it may add a little dry oil; actual in the water control should fully consider the ink dilute thick, high and low temperature, humidity, size and other factors, in order to achieve the best printing effect;

Three, electromagnetic heating, version of the lack of pressure

In the summer, why is there an electromagnet heating situation? The reasons are as follows:

(1) the temperature is high; the heat dissipation effect is mainly caused by the difference between the electromagnet and the ambient temperature. The smaller the temperature difference is, the less the heat radiation effect is;

(2) the power supply voltage is too low; use an offset printing press best stabilized in the 220V / 50Hz, in particular, to beware of the surrounding electrical interference; summer, due to the extensive use of electrical equipment, the voltage is too low, thus rising the electromagnet load, causing fever.

(3) electromagnet coil resistance is too large; spring resistance is too big, cause fever phenomenon; in view of the above situation, we suggest using a continuous (non ordinary household classification boost type AC regulated power supply, in order to improve the operation quality, prolong the service life of the machine; on the other hand, we are also stepping up research and development of a stronger magnetic force of the electromagnet, to effectively solve the problem of lack of magnetic, the results will soon be promoted to the market.