How to properly use a cleanroom?
Release Time:
2023-07-12 14:32
With the rapid development of modern industry, dust-free workshops have become widely used across various sectors. However, many people still lack a comprehensive understanding of dust-free workshops—especially some professionals in related fields. This inadequate knowledge can directly lead to improper use of dust-free workshops, resulting in damage to the workshop environment and an increase in the rate of defective products.
So, what exactly is a cleanroom? On what basis is it classified? And how can we properly use and maintain the cleanroom environment?
01 What is a dust-free workshop?
A dust-free workshop is also known as a clean factory, clean room (Clean Room), or dust-free room. It refers to a specially designed room that removes pollutants such as fine particles, harmful gases, and bacteria from the air within a specified space, while also maintaining indoor temperature, cleanliness, indoor pressure, air velocity and distribution, noise and vibration levels, lighting, and electrostatic control within certain required ranges.
Simply put, a dust-free workshop is a standardized production space designed for applications that have high requirements for the hygiene level of the production environment. It is widely used in industries such as microelectronics, magneto-optical technology, bioengineering, electronic devices, precision instrumentation, aerospace, the food industry, the cosmetics industry, and scientific research and education.
Currently, the most commonly used standards for classifying cleanrooms are primarily three types.
1. ISO standards of the International Organization for Standardization: Cleanroom ratings are based on the concentration of particulate matter per cubic meter of air. 2. U.S. FS 209D standard: Ratings are determined by the particle count per cubic foot of air. 3. GMP (Good Manufacturing Practice) rating standards: Primarily used in the pharmaceutical industry.
The correspondence among the three is shown in the table below:
(The lower the number, the higher the purification level.)
02 How to Maintain the Cleanroom Environment
Many users of cleanrooms are aware of the importance of hiring a professional team for construction but tend to overlook post-construction management. As a result, while some cleanrooms meet standards when they’re first completed and put into operation, after a period of running, they start experiencing excessive particle concentrations. Consequently, the defect rate of products rises, and in some cases, these products even end up being discarded and no longer used. Maintenance of cleanrooms is critically important—it not only affects product quality but also impacts the service life of the cleanroom itself. An analysis of the sources of cleanroom contamination reveals that... Pollution caused by human factors accounts for 80 percent, primarily in the form of fine particulate matter and microbial contamination.
(1) Personnel must wear cleanroom garments before entering the cleanroom.
The anti-static protective clothing series developed and manufactured by TanTu includes products such as anti-static suits, anti-static shoes, and anti-static caps. These products can achieve cleanliness levels of Class 1,000 or Class 10,000 through repeated washing. The anti-static materials help reduce the adhesion of fine contaminants such as dust and hair, while also enabling— Isolate sweat, skin flakes, bacteria, and other substances produced by human metabolism. Reduce contamination caused by human factors. 。
(2) Use qualified wiping products according to the cleanroom classification.
Using substandard wiping products can easily lead to pilling and shedding of fibers, fostering bacterial growth. This not only contaminates the workshop environment but also risks compromising product quality.
03 Dust-Free Cloth Series:
1. Made from polyester long fibers or ultrafine long fibers, it has a soft, delicate hand feel with excellent flexibility, as well as good wrinkle resistance and abrasion resistance.
2. The fabric undergoes weaving and processing that make it resistant to pilling and fuzzing, and less likely to shed fibers. Packaging is carried out in a dust-free workshop and the fabric is subjected to ultra-clean washing treatment, making it highly resistant to bacterial growth.
3. Utilizing special edge-sealing techniques such as ultrasonic and laser processes to ensure that the edges are resistant to fraying.
4. Applicable to production operations in Class 10 to Class 1,000 cleanrooms, this product effectively removes dust from product surfaces—including LCD, microelectronics, and semiconductor products. It is also suitable for cleaning and polishing machinery, tools, magnetic media surfaces, glass, and the interiors of polished stainless steel pipes.
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