The influence of temperature and humidity on screen printing ink 2021-04-27

When the air is very humid in the south wind, many silk screen masters complain that the same silk screen ink and the same process are used, and the yield is really low during printing. The silk screen ink is easy to gel, become sticky, gamble on the screen, and cannot be oiled during pad printing. The ink layer is matt, and the adhesion is poor.

Long term printing masters understand that screen printing and transfer printing have strict requirements for materials, processes, and environments, and even minor differences can have a serious impact on printing quality. Special attention should be paid when processing high-precision products with high requirements.
​

The above issues are mainly caused by the temperature and humidity of the working environment. Below are some improvement suggestions based on on-site processing experience:

Temperature:

1、When the temperature in the operation room is too low, especially when the temperature is below zero in winter in the north, the ink fluidity becomes poor, and even gel phenomenon appears.

Solution: Use hot water to warm or stir thoroughly to solve the problem.

2、When the temperature is too high, the screen printing ink will dry quickly, screen printing will have a gambling net, and transfer printing will not be easy to oil.

Solution: Replace with a slower drying diluent to solve the problem.

 

Humidity:

1、When the humidity is too high, the printing operation will absorb moisture, resulting in problems such as tackiness of silk screen ink, gel, matt, poor adhesion, etc.

Solution: Use an air conditioner or dehumidifier to solve this problem.

2、Low humidity can easily cause electrostatic dust pollution.

Solution: Use anti-static agents or dust removal rollers to solve the problem.

Of course, the above methods can only temporarily solve a single problem. If printing products with high precision requirements, it is still recommended to use a dust-free workshop and ensure temperature and humidity control. It is recommended to control the temperature in the homework room between 20-30 ℃ and the humidity between 55-70%.