Large-surface wipe-downs and fast spill events create a specific failure mode in controlled environments: the wipe that “works” for pickup can also become the source of fibers, particles, and film-like residues when operators have to overwork small wipes, re-wipe with loaded faces, or drag a saturated edge across hardware and seams. Texwipe TX1118 TechniCloth® II (18" × 18") is built for that reality—an engineered, hydroentangled cellulose/polyester nonwoven with an ultralow-particulate (ULP) treatment and cleanroom packaging intended to support high-absorbency wiping without turning into a variable you end up investigating.

Reliability is part of the control plan. SOSCleanroom supports continuity of supply and documentation discipline so programs can keep wipe selection stable—reducing “substitution drift” that quietly changes absorbency, shedding behavior, and residue background when schedules tighten.

TX1118 is intended for critical-environment wiping where low particle generation and high absorbency are both required—especially when the job demands coverage: large benches and carts, tool and equipment exteriors, staging tables, pass-through surfaces, and spill control where a small wipe would force multiple passes and raise the odds of redeposit. Texwipe positions the TechniCloth II family for electronics and component fabrication environments and for ISO Class 6–7 use, where absorbency is not optional but contamination discipline is still expected.

TX1118 earns a place in a wiping program when the facility needs absorbency and coverage, but still wants a published cleanliness framework:

• Blend architecture for pickup + strength: hydroentangled nonwoven made from a 55% cellulose / 45% polyester blend—cellulose for fast wet-out and capacity, polyester to hold together under wet wiping force.
• ULP (ultralow particulate) treatment: designed to reduce particle generation versus earlier blended wipe constructions in the same category.
• Large-format control: 18" × 18" coverage reduces “wipe count per task,” which is a real-world driver of contamination events (overworking, reusing loaded faces, and edge drag).
• Cleanroom packaging discipline: solvent-safe Bag-Within-A-Bag® cleanroom packaging supports controlled introduction and staged use.
• Traceability posture: lot-to-lot traceability is part of the product family positioning, which matters when a trend shifts and you need to narrow variables quickly.

“Cellulose/polyester wipe” is a category label, not a performance guarantee. What matters is how the fibers are entangled and how the sheet behaves when wet, folded, and dragged across real surfaces. TechniCloth II is hydroentangled (mechanically entangled rather than binder-reliant), giving it stable, bidirectional strength. The cellulose fraction drives sorption and wet-out; the polyester fraction contributes tensile strength so the wipe is less likely to tear, fuzz, or shed when operators increase pressure, wipe faster, or hit edges and fasteners.

The ULP treatment is a practical control layer: blended nonwovens can be excellent “pickup tools,” but particle generation often spikes when the fabric is stressed or abraded. ULP positioning is aimed at reducing that spike so absorbency doesn’t come with a predictable contamination penalty.

TX1118 is an 18" × 18" (46 cm × 46 cm) TechniCloth II wiper packaged 75 wipers per bag, double-bagged, with 10 bags per case. The large format is not “just convenience”—it changes technique: you can quarter-fold and still have meaningful usable face area, which helps keep single-direction wiping feasible on larger surfaces without switching wipes mid-pass.

Country-of-origin and packaging configuration should be treated as controlled attributes when your quality system requires it. Use the label and lot documentation tied to what you receive through SOSCleanroom as the governing control for incoming inspection and SOP language.

For most facilities, wipe selection lives or dies on three risk categories: releasables (particles/fibers), residues (NVR), and ions (corrosion/ECM sensitivity). TechniCloth II publishes typical analyses across those categories and they should be treated as a qualification baseline—not a contractual specification limit.

Typical TechniCloth II performance characteristics include: sorptive capacity 260 mL/m² and sorptive rate 1.2 seconds—a practical indicator that it wets and picks up liquid quickly. Typical contamination characteristics include LPC >0.5 µm: 37 × 10⁶ particles/m², fibers >100 µm: 40,000 fibers/m², NVR (IPA extractant): 0.02 g/m², NVR (DI water extractant): 0.02 g/m², and typical ions such as sodium 40 ppm, potassium 5 ppm, and chloride 24 ppm.

Translation for operators and QA: if you see streaking, haze, or “mystery film,” the levers are usually (1) chemistry concentration control, (2) wetness control and dwell, and (3) face-change discipline—not increased pressure. If ions are a dominant defect mechanism (corrosion-sensitive assemblies, high-impedance electronics), validate the wipe-down step in your real chemistry window and consider stepping up to an all-polyester architecture where appropriate.

In practice, contamination excursions during “routine wiping” often track back to one of two behaviors: (1) operators keep wiping with a loaded face because changing wipes is slow or disruptive, or (2) they re-wipe the same area multiple times with a small wipe to achieve coverage. TX1118 reduces both pressures by increasing coverage per wipe and maintaining usable face area after folding. When coverage is high and the wipe stays intact when wet, it is easier to enforce the rules that actually control outcomes: single-direction strokes, overlapping passes, and early face rotation/discard.

TX1118 performs best when technique treats the wipe as a controlled process input:

• Fold for face control: quarter-fold, then fold again as needed to create stable faces. Treat each face as single-pass when the surface is defect-sensitive.
• Wipe pattern: use straight-line, overlapping, single-direction strokes. Avoid “scrub back and forth” unless the SOP explicitly requires it.
• Wetness logic: damp lifts and captures; over-wet pools, wicks into seams, and increases residue after dry-down. Match wetness to contact-time requirements when using disinfectants.
• Spill logic: blot/pickup first, then wipe with fresh faces to avoid spreading the spill footprint.
• Change-out triggers: if the face is loaded, near saturation, or begins to smear, it is no longer a cleaning tool—it is a redistribution tool.

A blended wipe becomes the variable in predictable ways: overworking a saturated sheet, dragging wet edges across seams and fasteners, dry wiping textured coatings, and using a high-absorbency wipe as the default “final touch” on the most residue-sensitive surfaces. TX1118 helps by combining high absorbency with ULP positioning and stable hydroentanglement so the wipe is less likely to shed when the job gets physical. The remaining controls are procedural: face rotation, directional strokes, and chemistry discipline.

The most defensible comparisons are to other cleanroom-grade, high-absorbency nonwoven wipes intended for similar ISO ranges and wiping tasks:

Contec nonwoven cellulose/polyester cleanroom wipes (spunlace/hydroentangled class) are close comparators when the facility wants absorbency and published contamination context; buyers typically compare packaging discipline, wet strength under disinfectant use, and how the wipe behaves under real wipe force.

Berkshire cleanroom nonwoven blended wipes are credible peers in the “absorbency with controls” tier; comparison should focus on particle/fiber/NVR posture, consistency over time, and whether the wipe holds together when saturated and folded repeatedly.

If the process constraint is not absorbency but background minimization on defect-sensitive surfaces, the appropriate step-up is often an all-polyester knit or sealed-edge polyester format for finishing passes—while keeping blended wipes like TX1118 for pickup and general wipe-down roles.

TX1118 is a strong choice for ISO-class programs that need fast uptake and durable wet wiping at scale: large surfaces, spill control, and routine wipe-downs where coverage and absorbency reduce the temptation to overwork small wipes. In mature programs, TX1118 sits in the “pickup and general wipe-down” tier, while an all-polyester knit or sealed-edge polyester wipe is reserved for final-pass steps where background and edge-driven releasables are the limiting factor.

• SOSCleanroom product page: “Texwipe TX1118 TechniCloth II 18" × 18" Cellulose and Polyester Cleanroom Wiper” (positioning, applications, ordering context). https://www.soscleanroom.com/product/wipers/texwipe-tx1118-technicloth-ii-18-x-18-cellulose-and-polyester-cleanroom-wiper/
• ITW Texwipe datasheet DS-1109 (Effective: December 2009): “TechniCloth® II Wipers” covering TX1109/TX1112/TX1118 (composition, ULP treatment, Bag-Within-A-Bag packaging, ISO Class 6–7 positioning, typical performance and contamination characteristics). https://www.soscleanroom.com/content/texwipe_pdf/1109%201112%201118.pdf
• IEST recommended practice referenced by manufacturer test framework: IEST-RP-CC004.3 (evaluation framework for wiping materials used in cleanrooms and controlled environments). https://www.iest.org/Standards-RPs/Recommended-Practices/IEST-RP-CC004-3