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The relative relation of temperature and humidity in ink printing

Published on Aug. 08, 2019

The relative relation of temperature and humidity in ink printing

According to the requirements of the standardized specifications, the environment of the printing workshop should be constant temperature and humidity, which is not only conducive to avoiding paper deformation and improving the overprinter accuracy, but also to ensure the printing compliance of the Soy Oil Based Offset Printing Ink. However, in practice, due to different climatic conditions in different regions, enterprises have different investment conditions in the printing workshop environment, which makes it difficult for most consumer manufacturers to ensure the constant temperature and humidity of the workshop environment, thus bringing some practical difficulties and technical problems to printing consumption.

The relative relationship between temperature and humidity:

In a relatively sealed workshop, if there are two gravure lines, there may be a phenomenon:

Soy Oil Based Offset Printing Ink

Soy Oil Based Offset Printing Ink

If a device operates alone, consumption workshop humidifier is intermittent humidifier (workshop temperature 20℃), that is to say, humidity can reach the set value, that is, 45% ~ 55%;

If two equipment consumption at the same time, the relative workshop humidity is about 35% ~ 40% (workshop temperature 22℃), although the humidifier is constantly in the humidifier, but the humidity how to rise up, can not reach the set value. This is due to the two equipment consumption at the same time, the oven after heating solvent emissions to the outdoor air exchange and indoor temperature rise caused by.

Humidity is known as the content of water molecules in the environment. If the ambient temperature is high, the water molecules in the air will evaporate as the temperature rises, and the content will decrease. When the ambient temperature is low, the water molecules in the air are not easy to evaporate, and the water molecules absorb each other and fall by weight, the content will increase. If the ambient temperature is constant and the water molecules are evenly distributed in the air, it will lay a good foundation for improving printing consumption efficiency and production quality and volume stability. The printing industry gives the appropriate workshop temperature and humidity for printing as a reference: temperature 23±2℃, relative humidity 45% ~ 65%.

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