Work clothes, gloves, shoes, cloths, and carrier cases used in cleanrooms are washed after use, but did you know that how cleaned materials are dried can significantly affect their cleanliness? In fact, the drying process is just as important as cleaning, and improper drying can risk the dust and dirt that was so carefully removed from the materials re-adhering.

When cleaning materials, air drying or a conventional dryer carries the risk of airborne dust, hair, and microorganisms adhering to them. While drying removes moisture, it also exposes materials to air, which can lead to recontamination if not properly managed.

[How HEPA filter drying works]
HEPA filters (High Efficiency Particulate Air Filters) are capable of capturing over 99.97% of particles 0.3 micrometers or larger. Equipping a dryer with a HEPA filter purifies the air supplied to materials during drying, preventing the adhesion of particles and microorganisms. This allows the cleanliness achieved during cleaning to be maintained.

HEPA filter dryers enable drying at low temperatures and high airflow. Low temperatures prevent deterioration of textile products, while high airflow shortens drying times. In some cases, drying times have been reduced from 90 minutes to around 60 minutes, achieving both efficiency and quality assurance. They are also highly regarded in the pharmaceutical and aerospace industries for their ability to efficiently dry materials while maintaining their purity.

[Combined with a Class 100 Cleanroom]
The drying process must be carried out in a clean environment. Drying in a Class 1000 cleanroom minimizes the risk of particles adhering to materials during drying. Combined with one-way management using barrier-type washing machines, this eliminates the possibility of recontamination throughout the entire process, from washing to drying.

[Inspection and packaging after drying]
After drying, materials are inspected for hair and foreign objects before being vacuum-packaged. Only materials that pass inspection standards are shipped, and vacuum packaging prevents foreign matter from entering during transport and storage. This system ensures that materials remain pure until the moment they are opened on-site.

[Barcode management and history tracking]
All processing is tracked using barcodes. Data on how each material was cleaned, dried, inspected, and packaged can be verified, allowing for easy response to audits and customer inquiries. Our highly transparent quality assurance system meets ISO 9001 requirements.

Drying cleanroom supplies requires more than simply removing moisture. Preventing recontamination during the drying process is essential to ensuring material quality. We meet the strict standards of the semiconductor, pharmaceutical, precision machinery, and aerospace industries.

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/