Polyester Cleanroom Wipers

What is the Polyester Cleanroom Wipers?

Polyester cleanroom wipers are continuous-filament knitted cloths with sealed edges used to remove particles, residues and liquids from surfaces in ISO 4–7 cleanrooms. They are chosen for low linting, good absorbency and solvent compatibility.

Overview

Wipers are knitted from 100 % continuous-filament polyester yarn, typically weighing 100–150 g/m2, and finished by laser or ultrasonic sealing to prevent fibre release at the edges. Standard sizes are 9 × 9 inch (230 × 230 mm) and 12 × 12 inch (300 × 300 mm), packed in double bags of 100 to 300 wipes in a clean environment. They are laundered in ultra-pure water and dried in an ISO 4–5 environment. Typical absorbency is 250–400 mL/m2, and particle counts at 0.5 micrometres and above are below 1000 particles per square metre in the IEST-RP-CC004 test. Low ion content and compatibility with isopropanol, acetone and common disinfectants suit critical surface wipe-down. Sterile versions are available, irradiated at 25–50 kGy.

How does it work?

Cleanroom accessories work by limiting the generation, transfer and retention of contaminants. Garments and gloves act as barriers against skin flakes, hair and fibres shed by personnel, using tightly woven low-linting fabrics with pore sizes small enough to retain particles of 0.5 micrometres or larger. Wipers absorb and remove liquids and particles using continuous-filament polyester or microfibre knit with sealed edges, so fibres do not release. Tacky mats use a pressure-sensitive adhesive layer that captures particles from shoe soles and cart wheels as they walk across. Shoe covers and boots contain floor contamination. Materials are selected for low particle shedding, low ionic and extractable residues, and compatibility with disinfectants, with cleaning and packaging done in controlled environments.

What are the key features?

• Continuous-filament polyester with low linting
• Laser or ultrasonic sealed edges
• Laundered in ultra-pure water
• Double-bagged packaging in clean environment
• Compatible with IPA, acetone and disinfectants
• Sterile version irradiated at 25–50 kGy

What are the technical specifications?

A typical polyester cleanroom wipers configuration offers material of 100 % polyester, continuous filament, basis weight of 100–150 g/m2, size of 230 × 230 mm or 300 × 300 mm, edge finish of Laser or ultrasonic sealed, absorbency of 250–400 mL/m2 and particle count ≥ 0.5 μm of < 1000 /m2. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Polyester Cleanroom Wipers is used in surface wipe-down, equipment cleaning, electronics assembly and pharmaceutical cleaning validation. Across the wider Cleanroom Accessories class, laboratories also deploy it for pharmaceutical manufacturing, semiconductor fabs and medical-device assembly.

Which standards and certifications apply?

Relevant standards and methods include IEST-RP-CC003 (garment system considerations), IEST-RP-CC004 (evaluating wiping materials), IEST-RP-CC005 (cleanroom gloves), ISO 14644-5 (cleanroom operations), ASTM D6319 (nitrile examination gloves) and EU GMP Annex 1 (sterile manufacturing). Certification candidates for this model are CE and ISO 9001 manufacturing; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Store accessories in sealed bags or cabinets in the clean area, away from moisture and sunlight, and follow first-in-first-out rotation with expiry dates. Verify supplier certificates and lot test data on receipt, including particle counts, bioburden and sterility for sterile items. Set garment laundering cycles and inspect for tears and zipper damage. Change gloves often, for example every 2 hours or when contaminated, and never reuse disposable items. Replace tacky mat sheets when soiled, and follow a documented schedule. Incorporate accessories into gowning SOPs and training, and keep records for GMP or ISO 14644 audits.

How do I select the right Polyester Cleanroom Wipers?

Select polyester wipers for general cleanroom surface wiping and solvent cleaning where low linting is needed. For high absorbency or sensitive optics, compare microfibre or polyester-cellulose options. RFQ: size, pack count, sterile or non-sterile, edge type and target cleanliness class.

How does it compare with other Cleanroom Accessories variants?

Start from the room class and the contamination risk of the process. ISO 7–8 areas often use polyester garments and nitrile gloves, while ISO 5 sterile areas need sterile, double-gloved garments in low-particle fabrics. Check particle shedding, often tested to IEST-RP-CC003 and IEST-RP-CC004, extractable ions, absorbency and sterility assurance level when sterile is required. For gloves, compare thickness, length, AQL and chemical resistance. For wipers, match fibre type, edge sealing and solvent compatibility. Consider packaging, such as double bagging, and lot traceability. Compare sizes, cost per use and laundering cycles for reusable garments, and ensure items are compatible with ESD requirements in electronics.