Practical solutions in a critical environment
Micro-cleaning failures rarely come from “hard-to-reach” geometry alone. They show up when the contact patch is unstable: a swab face bridges a groove,
twists inside a track, or loads up and starts redepositing a film along the last 3–5 mm of a stroke. Operators respond by scrubbing, over-wetting,
or reworking the same wipe point, which is how a small, solvated residue becomes a visible smear line under inspection lighting.
TX758B is built for that reality. The micro Alpha® polyester knit head provides controlled mechanical pickup at
tight wipe points, and the thermal bond head/handle construction eliminates adhesive at the bond line—one less
variable when you are chasing a haze, a thin film, or a solvent-sensitive residue.
Low-linting outcomes depend on technique and surface condition. No swab is truly lint-free; edge sharpness, surface roughness, solvent load, contact pressure,
and stroke discipline govern what you see on the part.
What is this swab used for
Texwipe TX758B is used for precision spot cleaning where a standard swab head is too large to stay honest:
grooves, tracks, slots, small recessed features, tight wipe points around fasteners, and delicate surfaces that respond poorly to scrubbing.
In optical and precision assembly work, teams often use micro knit swabs for controlled solvent application and removal (for example, IPA—validate compatibility
with your coatings, inks, adhesives, and assembly materials).
The manufacturer also positions the non-sterile TX758B as NSF Certified for use as a cleaning swab (P1) in and around food
processing areas, with the standard restriction that it must not have direct contact with food or potable water and must be used per the manufacturer’s directions.
Why should customers consider this swab
- Micro head geometry supports controlled access in grooves, tracks, and wipe points where larger heads bridge or twist.
- Alpha® polyester knit (double-layer) improves controlled solution pickup and mechanical pickup on smear-prone films.
- Thermal bond construction eliminates adhesive at the bond line, reducing a residue variable in solvent-wet work.
- Lot-coded packaging supports investigations and repeatable qualification.
- Silicone-free and amide-free bag packaging supports processes sensitive to silicone transfer and slip additives.
- Trademarked light-green handle with “TEXWIPE” embossed on the handle is a practical line-level traceability and segregation cue.
- Published typical ion extractables and NVR values help set realistic background expectations in residue-sensitive work.
Materials and construction
Head: Alpha® polyester knit (double layer)
Head bond: thermal bond (no adhesive at the bond)
Handle: 100% virgin polypropylene; handle color: light green
Practical implication: this is a micro-format knit swab. Treat burrs and sharp edges as a process risk. Reduce pressure near edges, avoid dragging the knit across sharp corners,
and do not “power through” snag points that can create local fiber or particle release.
Specifications in context
TX758B is a compact, micro cleanroom swab. Use the 3.2 mm head width to standardize groove coverage and overlap so the process does not drift into scrubbing.
Use head thickness and length to manage wetness: micro heads can over-wet quickly, then “dump” solvent at the end of a stroke. Keep the head damp (not dripping), define stroke count,
and rotate faces early. If you validate cleaning (TOC, HPLC/UV-Vis, ion chromatography), qualify the swab with your solvent, your surfaces, your stroke count, and your inspection method.
| Attribute |
TX758B |
| Head material |
Alpha® polyester knit (double layer) |
| Head width |
3.2 mm (0.126") |
| Head thickness |
2.5 mm (0.098") |
| Head length |
11.0 mm (0.433") |
| Handle material |
polypropylene (virgin) |
| Handle width |
2.2 mm (0.087") |
| Handle thickness |
2.2 mm (0.087") |
| Handle length |
60.0 mm (2.362") |
| Total swab length |
70.0 mm (2.756") |
| Head bond |
thermal |
| Handle color |
light green |
| Design notes |
micro knit head; compact handle; designed for tight wipe points |
Cleanliness metrics
The values below represent published typical analyses and are not per-unit specifications. Use them as a baseline for risk assessment, method development, and troubleshooting.
If you run film-sensitive work (optics, polished metals, coated parts) or you validate cleaning (TOC, HPLC/UV-Vis, ion chromatography), qualify the swab with your solvent,
your surfaces, your stroke count, and your inspection method so the swab does not become the dominant background signal.
Typical ion extractables (µg/swab)
| Ion |
TX758B |
| Calcium | 0.03 |
| Chloride | 0.12 |
| Fluoride | 0.01 |
| Magnesium | 0.01 |
| Nitrate | 0.02 |
| Phosphate | 0.01 |
| Potassium | 0.01 |
| Sodium | 0.02 |
| Sulfate | 0.06 |
Typical nonvolatile residue (NVR) (mg/swab)
| Extractant |
TX758B |
| DIW extractant | 0.01 |
| IPA extractant | 0.03 |
Operator takeaway: micro heads can look “clean” while still redepositing. Keep the head damp, rotate faces early, and stop when drag increases.
If you see a drying ring, reduce solvent load and shorten the final stroke length so the end-of-stroke does not pool.
Packaging, sterility and traceability
- Packaging (TX758B): 500 swabs/bag (5 inner bags of 100 swabs); 5 bags/case; 2,500 swabs/case
- Bag packaging controls: silicone-free and amide-free bag packaging (manufacturer statement)
- Sterility: non-sterile. Sterile alternative: STX758B (individually packaged sleeves; triple-bagged sterile presentation; gamma irradiated per manufacturer program statements—re-qualify before substitution)
- Shelf life (series statement): non-sterile 5 years from date of manufacture; sterile 3 years from date of manufacture
- Traceability cues: lot-coded packaging supports investigations; “TEXWIPE” embossed handle and light-green handle color support practical line segregation
- Country of origin (manufacturer statement): Non-sterile – Made in The Philippines; Sterile – Made in The Philippines, irradiated in the U.S.
- Temperature/processing note: Alpha® polyester knit swabs are positioned as autoclave safe in dry heat and steam (validate your method and packaging impacts before relying on this in a controlled program)
Best-practice use
Treat TX758B like a controlled micro-wipe tool. The goal is stable contact and stable solvent delivery, not scrubbing. Define stroke count,
define overlap, and define discard triggers so operators do not “chase” a film line by reworking it with a loaded face.
Operator-level swabbing technique module
- “Damp” solvent technique: Apply solvent to the head, then reduce to damp, not dripping. A practical check is one touch to a controlled blot surface to remove excess. Micro heads can flood fast; you want a light, even wet track, not a bead.
- Stroke count logic: Use single-direction strokes with defined overlap. Start with 2–4 passes on a defined wipe point, then stop and inspect. Rotate to a fresh face early. Discard when drag increases, the knit shows visible loading, or the work starts to streak.
- Groove/track control: Keep the swab aligned with the feature so the face does not twist and scrape an edge. If the feature has a burr risk, reduce pressure and avoid “hooking” the knit at the end of the stroke.
- Pressure guidance: Use just enough pressure to maintain contact. Excess pressure can squeegee dissolved residue into a line and can abrade soft coatings or delicate finishes.
- Solvent compatibility framing: IPA is common. Validate compatibility with the surface, coating, ink, and adhesive systems. If residue does not dissolve, change chemistry or dwell strategy rather than increasing pressure or stroke count.
- Handling discipline: Stage only what you need. Use inner bags (100-count) as point-of-use packs to reduce repeated bag opening. Do not re-dip a used swab into a shared solvent reservoir. Decant to a small working vessel and replace it frequently.
- Document what matters: For deviations and investigations, capture lot code, solvent grade, wetness-control approach, stroke count, and inspection outcome so trends can be separated from process drift.
Common failure modes
- Over-wetting the micro head and flooding the wipe point, leading to pooling and visible drying rings.
- Reworking the same feature with a loaded face, causing streaks and redeposition.
- Scrubbing motion that smears mobilized films instead of lifting and capturing them.
- Edge hooking or twist at the wrist inside a groove/track, creating a line at the end of the stroke and increasing snag risk.
- Cross-contaminating solvent by re-dipping or using a shared reservoir without decant-and-refresh discipline.
Closest competitors
The closest alternatives are micro polyester swabs built for precision wipe points, where the selection hinges on head construction, bond method, published cleanliness data,
packaging discipline, and lot-level traceability. Compare wetting behavior (flooding risk), snag resistance near edges, and whether documentation supports qualification and investigations.
- Contec CONSTIX® sealed polyester swab class (SP series): Often positioned for controlled contact with sealed construction approaches. Compare bond mechanism, head durability under solvent-wet wiping, and documentation depth (extractables data, lot traceability, packaging discipline).
- Berkshire Lab-Tips® knitted polyester swab class: Similar knit-based intent for critical cleaning. Evaluate how the head behaves under your solvent and inspection method and whether the supplier provides enough cleanliness and traceability support for your program.
- Puritan polyester swab formats (micro/small class): Comparable size ranges may be available. Confirm thermal-bond versus adhesive interfaces, published cleanliness information, and lot coding that supports repeatable qualification.
Critical environment fit for this swab
TX758B fits work where micro-contact control matters: grooves, tracks, wipe points around precision features, and tight recessed areas that show film, haze, or streaking under inspection.
It is a strong choice when you want a defined, repeatable geometry and an adhesive-free bond line to support consistent technique rather than operator-dependent scrubbing.
SOSCleanroom’s relationship with ITW Texwipe supports continuity of supply and documentation discipline, reducing the risk of unplanned substitutions that change wetting behavior and background extractables.
That matters in ISO-aligned cleanroom programs and in regulated environments where documentation expectations often track FDA quality systems and standards-driven methods associated with ASTM and IEST.
Operational support matters, too. Fast shipping and responsive customer service help keep validated work instructions intact by preventing “make-do” material swaps when production schedules tighten.
SOSCleanroom note about SOP's
The Technical Vault is written to help customers make informed product selections and to support cleaner, more repeatable day-to-day handling.
It is not a substitute for your internal SOPs, quality system requirements, validation protocols, or regulatory obligations.
If you adapt any technique guidance from this entry, treat it as a starting template. Your team should review and approve the final method,
then qualify it for your specific surfaces, solvents, cleanliness limits, inspection methods, and risk profile. When required, involve QA/Validation
and document the rationale, acceptance criteria, and training controls before the method is released to production.
In short: use these best-practice suggestions to strengthen your SOPs—not to replace them.
Source basis
- SOSCleanroom product page (TX758B): https://www.soscleanroom.com/product/spotlight-videos/optical-cleaning/texwipe-tx758b-micro-alpha-polyester-cleanroom-swab/
- Primary stable reference (SOS-hosted PDF): Texwipe Alpha® Swab Series technical data sheet (includes TX758B): https://www.soscleanroom.com/content/texwipe_pdf/714a%20743b%20754b%20758b%20761.pdf
- Texwipe manufacturer product page (TX758B): https://www.texwipe.com/alpha-tx758b
- Texwipe technical data sheet: “ALPHA® SWAB SERIES — Polyester Knit” (US-TDS-062 Rev.09/21): https://www.texwipe.com/images/uploaded/documents/Swabs/Texwipe-AlphaPolyesterKnit-Swabs-TDS.pdf
- International Organization for Standardization (ISO) reference (ISO 14644-1:2015): https://www.iso.org/standard/53394.html
- FDA (Food and Drug Administration): https://www.fda.gov/
- ASTM (American Society for Testing and Materials): https://www.astm.org/
- IEST (Institute of Environmental Sciences and Technology): https://www.iest.org/
Technical Vault
SOSCleanroom is the source for this Technical Vault entry.
Briefed and approved by the SOSCleanroom (SOS) staff.
If you have any questions please email us at Sales@SOSsupply.com.
Last reviewed: January 6, 2026
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