In aseptic and sterile operations, the wipe is not just a consumable—it is part of the sterility and contamination-control system. The common failure mode is not “the surface was dirty,” it is that the cleaning step introduced a new variable: unvalidated in-house autoclaving, inconsistent packaging presentation, or a wipe that cannot hold enough chemistry to maintain contact time without shedding or tearing.

Texwipe TX3220 Sterile TexTra (12" × 12") is built to remove those variables with a pre-sterilized, gamma-irradiated polyester knit wiper designed for high-sorption sterile wiping in ISO Class 5–6 environments, including application and removal of larger volumes of cleaning and disinfecting solutions. It is specified as gamma irradiated to a SAL of 10⁻⁶ in accordance with ANSI/AAMI/ISO 11137, with lot-specific documentation and expiration dating tied to each case.

TX3220 is intended for sterile wiping of environmental surfaces and production equipment, spill control, and applying/removing larger volumes of cleaning and disinfecting solutions where the wipe must stay intact, keep releasables controlled, and support sterile-area handling discipline. It is specifically positioned for high-sorption use in ISO Class 5–6 environments.

TX3220 earns its place when the cleaning step must be both technically effective and audit-defensible:

• Sterility posture: gamma irradiated to SAL 10⁻⁶ per ANSI/AAMI/ISO 11137; positioned to eliminate the preparation, documentation, and validation burden of in-house autoclaving for wipes.
• Substrate and strength: cleanroom-laundered 100% polyester knit with good abrasion resistance for rigorous wiping with minimal release of particles and fibers.
• High-sorption behavior: absorbency is framed as “two-ply” performance; typical sorptive capacity is 600 mL/m² with a typical sorptive rate of 0.3 seconds.
• Sterile introduction controls: double-bagged, solvent-safe packaging intended to support exterior bag alcohol wipe-down before sterile-area introduction; header strip helps protect remaining wipes after opening.
• Quality and traceability: lot-specific information attached to each case, including a Certificate of Processing confirming radiation dosage, Certificate of Compliance, and expiration dating.

“Sterile polyester wipe” is still a category, not a specification. For sterile cleaning, the design target is stable mechanical behavior under wet chemistry: the wipe must hold enough liquid to support contact time, release it predictably during wiping, and avoid rapid mechanical breakdown that turns wiping into particle generation.

TX3220 is a 100% polyester knit wiper that is positioned to provide absorbency of a two-ply wiper while retaining abrasion resistance and strength for rigorous wiping. The result is a wipe that can move meaningful volumes of disinfectant or cleaning solution without “going soft,” tearing, or leaving visible fibers that are incompatible with sterile ISO Class 5–6 expectations.

Practical note: no wiper is truly lint-free in every process condition. The control target is low-linting behavior in your actual use window—pressure, surface texture, edge contact, and chemistry loading determine what the wipe contributes.

TX3220 is a 12" × 12" nominal (31 cm × 31 cm) sterile polyester wiper format designed for broad coverage and high liquid capacity. In practice, 12" × 12" helps operators maintain one-direction strokes and controlled overlaps while still allowing frequent folding to present fresh faces.

Packaging note (important for kitting): the TX3220 data sheet lists 100 wipers/bag (as 5 inner bags of 20), 5 bags/case (500 total/case). The SOSCleanroom product page lists a different case configuration (100 per bag, 8 bags/case) and emphasizes double vacuum sealed presentation. Treat the exact SKU labeling and case pack you receive as the governing control for inventory planning, sterile transfer SOPs, and incoming inspection—pack configurations can vary by sell-pack and documentation vintage.

Country-of-origin can be a controlled attribute in regulated programs. SOSCleanroom lists TX3220 as made in the USA; when COO must be verified, confirm through documentation tied to the lots received.

For sterile wiping, the wipe must control three practical risk categories: releasables (particles/fibers), residues (NVR), and chemistry handling behavior (wet-out, hold, and release). TX3220’s published typical values provide a qualification starting point—typical analyses, not contractual specifications.

• Absorbency: typical sorptive capacity 600 mL/m²; typical sorptive rate 0.3 seconds.
• Particles and fibers: typical particles (0.5–5.0 μm) 10 × 10⁶ particles/m²; (5.0–100 μm) 460,000 particles/m²; fibers (>100 μm) 500 fibers/m².
• NVR: typical IPA extractant 0.07 g/m²; DI water extractant 0.04 g/m².

TX3220 performs best when technique matches the contamination model:

• Sterile transfer discipline: wipe down the exterior bag with approved alcohol before introducing the inner bag to the sterile area; stage the opening to minimize exposure time.
• Fold and rotate aggressively: quarter-fold to create multiple clean faces; treat each face as single-pass where residue control matters.
• Directional strokes: use straight, overlapping, one-direction passes; avoid “scrub back-and-forth” on residue-sensitive surfaces.
• Contact-time logic for disinfectants: apply enough chemistry to maintain required dwell, then remove with fresh faces to prevent redeposit.
• Change-out triggers: discard early when the wipe is near saturation or visibly loaded; a saturated wipe becomes a redistribution tool.

Sterile wiping failures are predictable: in-house sterilization drift (cycle, load, packaging), inadequate sorption that forces re-wetting mid-step, tearing during rigorous wiping, and reusing a contaminated face too long. TX3220 addresses the sterility and handling side by providing a gamma-irradiated SAL 10⁻⁶ product with lot documentation and packaging intended for sterile introduction, while the high-sorption polyester knit construction supports effective chemistry application/removal without rapid mechanical breakdown. The remaining controls are procedural: face rotation, directional strokes, and chemistry discipline.

The most defensible comparisons are to other sterile polyester knit wipe programs designed for ISO 5–6 use, with documented sterility assurance, double-bag sterile introduction controls, and published typical releasables/NVR data. When evaluation is close, the differentiators tend to be (1) packaging configuration and ease of sterile transfer, (2) sorption and “face life” under real chemistry volumes, and (3) lot documentation completeness and traceability posture.

TX3220 is the right control when you need a sterile, high-sorption wipe for ISO Class 5–6 cleaning and disinfection—especially when eliminating the validation and documentation overhead of in-house autoclaving is a meaningful risk reduction. It is most at home in sterile-area environmental surface wiping, production equipment wipe-down, spill response, and any step where larger chemistry volumes must be applied and removed with controlled releasables behavior. When residue sensitivity becomes the primary constraint, define a finishing step and validate it to your acceptance criteria rather than “wiping harder” with the same consumable.

• SOSCleanroom product page: “Texwipe TX3220 Sterile TexTra 12" × 12" Polyester Cleanroom Wiper” (positioning; key specs; packaging presentation; COO marketing statement where applicable).
• ITW Texwipe datasheet: “Sterile TexTra™ TX3220” (SAL 10⁻⁶ per ANSI/AAMI/ISO 11137; packaging framework; QA/lot documentation; typical absorbency and contamination characteristics; typical-value framing and referenced methods).