Talking about the clean room requirements of packaging and printing industry

Packaging printing uses various packaging materials as the carrier, and prints decorative patterns, patterns or characters on the packaging, and common clean room workshop end products such as cans, milk boxes, labels, etc.
Packaging and printing plants generally require 100,000-level dust-free purification workshop standards. If there is a coating process, a thousand-level dust-free purification workshop standards are required.
In a 100,000-level printing and packaging purification workshop, in simple terms, the number of particles with a diameter of ≥0.5 μm per cubic meter of air in the workshop does not exceed 3.53 million.
The lower the number of particles in the air, the lower the amount of dust and the cleaner the air.
To achieve such a cleanliness, in addition to the use of special materials for walls, floors and ceilings, it is more important to have circulating air to continuously dilute the dust in the air.
Since the operation of equipment and the flow of people in the workshop will generate dust, the importance of the air circulation system in the clean room is self-evident.
Parameters of clean room in printing and packaging industry:
The number of air changes: 10-15 times/h for a class 100,000 clean room, 50-60 times/h for a class 1000 clean room
Pressure difference: different cleanliness levels of the main adjacent room ≥ 5pa, clean and outdoor pressure difference ≥ 10pa
Temperature: 20~26℃
Relative humidity: 45-65% (RH)
Noise: ≤65dB (A)
Illumination: greater than or equal to 300Lux