Clean suits and dust-free gowns are essential materials in a wide range of industries, including semiconductors, pharmaceuticals, precision machinery, and aerospace. Using new clothing each time is expensive, but cleaning and reusing them poses concerns about whether cleanliness can truly be maintained.

[Common Issue: New or Reuse]
Cleanroom workwear is made from high-performance fiber materials and is durable, designed for repeated use. However, home washing machines and general dry cleaners often fail to achieve a sufficient level of cleanliness, making reuse difficult. As a result, many workplaces are faced with the choice of "use new or choose a reliable reuse service."

[Why dedicated cleaning?]
Workwear accumulates hair, dust, fibers, and sebum. These cannot be completely removed by standard cleaning. Furthermore, recontamination can occur during drying and storage. In the semiconductor industry, nanometer-level contamination directly impacts product yield, while in the pharmaceutical industry, the inclusion of hair or bacteria can compromise product safety. Avoiding these risks requires a specialized cleaning and management system.

[Thorough cleaning with ultrapure water]
Ordinary tap water or pure water cannot completely remove microscopic particles and organic matter. This is where ultrapure water with a resistance of up to 18.2 MΩ is used. Ultrapure water contains almost no impurities, so it can remove even dirt and particles embedded deep within the fibers of clean suits.

[One-way Management Prevents Recontamination]
To maintain the cleanliness of cleaned items, the process flow itself must be redesigned. Technoclean has introduced a "barrier-type washing machine" that inserts work clothes from the contaminated side and removes them from the clean side. This prevents cleaned materials from coming into contact with a contaminated environment again.

[Maintaining cleanliness with HEPA filter drying]
The drying process also affects the quality of reuse. While conventional dryers may trap fine particles from outside air, we use HEPA filter dryers to dry using only clean air.

[Inspection]
Even after washing and drying, there is a possibility that hair or fibers may remain on work clothes. We inspect each process, as well as the final process, for hair and foreign matter, and only ship materials that meet our standards.

[Vacuum-packaged storage and transportation]
All vacuum-packed work clothes are inspected to prevent new contamination during storage and transportation. Since cleanliness is maintained until the moment of opening at the site, they can be used safely as if they were new.

[Tracking history with barcode management]
Reuse requires clear information about when the clothes were washed and how many times they were used. We centrally manage the history of each material using barcode management. This allows us to determine the lifespan of materials and respond quickly to audits and customer inquiries.

[Achieving both cost reduction and quality assurance]
Compared to purchasing new products, reuse directly reduces costs. However, this is meaningless unless quality is guaranteed. By combining a series of systems, including ultrapure water cleaning, one-way control, HEPA drying, inspection, vacuum packaging, and barcode management, We achieve both cleanliness and cost reduction.

[Summary]
So, can cleanroom workwear be reused?
"Yes, with the right management system."

Contact Information
Techno Clean Co., Ltd.
1438-1 Komai, Fujii-cho, Nirasaki-shi, Yamanashi Prefecture, 407-0001
TEL: 0551-30-2525
FAX: 0551-30-2526
Website: https://technoclean.jp/