How to dry color copperplate label paper after printing?

The drying treatment of color copper plate label paper after printing is an important link, which directly affects the printing quality of the label and the subsequent use effect. Here are some common drying methods:

First, natural drying

For the printing amount is not large or sufficient time, you can choose natural drying. Place the printed label paper in a well-ventilated place away from direct sunlight and allow it to dry naturally. This method is simple and easy, but the drying time is longer, and it is greatly affected by the ambient temperature and humidity.

Second, hot air drying

Hot air drying is a fast and effective drying method. The hot air dryer is used to heat and blow the printed label paper to accelerate the drying speed of the ink. Hot air dryers usually have temperature and time adjustable features that can be adjusted according to different ink and paper characteristics.

Third, UV curing and drying

For label paper printed with UV ink, the UV curing and drying method can be used. UV curing drying uses ultraviolet light to make the photoinitiator in the ink react chemically, so as to achieve rapid drying. This method has a fast drying speed and good effect, but requires special UV curing equipment and ink.

Fourth, infrared drying

Infrared drying uses infrared radiation to heat the printed matter, so that the solvent in the ink evaporates rapidly to achieve the purpose of drying. Infrared drying has strong penetration and can be heated deep inside the paper, so the drying effect is more uniform. However, it should be noted that the temperature and time Settings of the infrared drying equipment need to be strictly controlled to avoid damage to the paper.

Fifth, precautions

When drying, it is necessary to pay attention to avoid excessive drying or insufficient drying. Excessive drying may lead to paper deformation, cracking and other problems, while insufficient drying will affect the adhesion of the ink and the quality of the print.

For different types of ink and paper, it is necessary to choose the appropriate drying method and parameters. For example, for coated paper with poor ink absorption, deep ink thin printing can be used to reduce the amount of ink, while appropriately increasing the drying time to ensure the drying effect.

In the drying process, it is also necessary to pay attention to keep the working environment clean and temperature and humidity appropriate to avoid dust and debris to pollute the printed matter or affect the drying effect.

In summary, the drying treatment of color copperplate label paper after printing needs to choose the appropriate method and parameters according to the actual situation. At the same time, it is also necessary to pay attention to operational norms and safety matters to ensure the drying effect and product quality.