Reference image for TX5741 TexWrite® Cleanroom Spiral Notebook.
1) Practical solutions in a critical environment
In cleanrooms, “just grab a notebook” is how uncontrolled paper, loose fibers, and smear-prone inks quietly enter a controlled process. TX5741 is built for point-of-use documentation in a half-letter format: logbooks, batch notes, maintenance records, and line-side data capture where a full 8.5" x 11" notebook is too large but a pocket notebook is too small.
For over 35 years, SOS and Texwipe have been close partners, and SOSCleanroom is the authorized Master Distributor of ITW Texwipe for the United States market. That matters when SOPs specify a particular recording material and when consistent supply and documentation are part of the control strategy.
2) What this product is used for
- Record keeping, data transfer, and notes inside cleanrooms and controlled environments (manufacturer-stated).
- Line-side logbooks, maintenance and calibration logs, and process notes where paper must be present near product.
- Traveler support and shift handoff documentation where a compact, portable notebook format is preferred.
- Area-specific notebooks to prevent “office notebook creep” into critical spaces.
3) Why customers consider this product
- Controlled contamination behavior: engineered materials help reduce particle and fiber generation during page turns and routine handling.
- Solvent-aware printing: IPA-resistant, low-sodium ink reduces smear risk and ionic contribution during typical cleanroom wipe-down workflows.
- Compact half-letter format: 5.5" x 8.5" fits on carts, in pockets, and at line-side stations where a full notebook is impractical.
- Durable covers and practical binding: HDPE covers with a plastic spiral so it lays flat, rotates easily, and survives cart use.
- Standardization: a defined notebook SKU reduces “uncontrolled substitute” risk across shifts and areas.
4) Materials, composition, and build
- Cover: high-density polyethylene (HDPE), described as chemical-resistant.
- Binding: plastic spiral; notebook lies flat and pages rotate freely.
- Pages: TexWrite® copolymer cleanroom paper. For latex-sensitivity concerns, confirm the current statement directly with Texwipe documentation.
- Printing: IPA-resistant, low-sodium ink for reduced ionic contamination and improved legibility after common IPA exposure.
Important note: manufacturer guidance states autoclaving is not recommended for TX5741. Do not apply sterilization steps without a documented evaluation.
5) Specifications in context
| Attribute |
TX5741 (published configuration) |
| Notebook size | 5.5" x 8.5" (140 mm x 216 mm) |
| Page format | White, college-ruled |
| Writable pages / sheets | 100 writable pages (50 sheets) |
| Cover material | HDPE cover (chemical-resistant) |
| Binding | Plastic spiral; lays flat; pages rotate freely |
| Ink behavior | IPA-resistant, low-sodium printing |
| Cleanroom suitability (manufacturer-stated) | ISO Class 3–8; Class 1–100,000; EU Grade A–D |
| Autoclave compatibility | Autoclaving not recommended |
| Sterility status | Not stated in source basis (cleanroom packaged; sterile not stated) |
| Case quantity | 10 notebooks / box (case) |
| Country of origin | Made in USA (per Texwipe TDS) |
6) Performance and cleanliness considerations
The data below are typical values for the TexWrite® Cleanroom Spiral Notebook construction published by the manufacturer (not product specifications). Use them as context when building acceptance criteria and handling rules.
| Typical property |
Typical value |
Test method (published) |
| Basis weight | 80 g/m² | TM2 |
| Caliper | 5.0 mil | (Published in TDS) |
| Tensile strength (machine / cross) | 5.3 kg / 4.5 kg | Fed. Std. No. 191A, Method 5102 |
| Tear strength (machine / cross) | 78 g / 79 g | Elmendorf tear test |
| Opacity | 74% | TAPPI T-425 |
| Surface resistivity (55% RH) | 2.6 x 109 ohms (2.6 x 1010 ohms/sq) | TM14 (adapted from EOS/ESD-S11.11) |
| Particles (>0.5 µm) | 4.8 million particles/m² | TM5 |
| Ions: Sodium | 85 ppm | TM12 (CIA) |
| Ions: Chloride | 50 ppm | TM12 (CIA) |
IPA-resistant printing supports typical IPA exposure, but ethanol, quats, and other disinfectant interactions are not stated in the source basis. Qualify legibility and residue behavior under your site method.
7) Packaging, sterility, traceability, and country of origin
- Packaging quantity: 10 notebooks per box (case); cleanroom packaged.
- Sterility: not stated in source basis. Treat as non-sterile unless your qualification program confirms otherwise.
- Autoclave: autoclaving not recommended (manufacturer-stated).
- Traceability: lot-level COA/COC availability not stated in source basis; request during qualification if required.
- Country of origin: Made in USA (per Texwipe TDS).
8) Best-practice use
- Stage closed, not open: open only the notebook in use; keep spares sealed and protected from airflow and touch contamination.
- Assign by area or asset: dedicate notebooks to a room, cart, or equipment ID to prevent cross-area transfer.
- Control IPA interactions: avoid flooding pages with IPA directly; protect the notebook from direct solvent wetting.
- Glove discipline: treat the notebook like a process-contact surface; contaminated gloves make it a transport vector.
- Smear control: avoid writing with solvent-wet gloves; set a defined dry time before closing.
- Standardize pens/markers: qualify writing instruments for legibility and smear resistance under your actual handling conditions.
9) Common failure modes
- Open notebook exposure: pages left open on a bench become particle collectors and release sources.
- Ink smearing: from solvent-wet gloves, writing on a damp surface, or closing too soon.
- Particle/fiber generation from handling: aggressive thumb-drag page turns and tearing pages out inside critical areas.
- Uncontrolled substitutions: office notebooks can introduce uncontrolled particles and ions; lock the SKU in the SOP.
- Autoclave misuse: autoclaving is not recommended; doing so without evaluation creates documentation and contamination risk.
10) Closest competitors
The closest in-platform alternatives are other Texwipe TexWrite® spiral notebooks in different sizes:
- TX5740 — 8.5" x 11" version of the same notebook family (larger format).
- TX5742 — 3" x 5" pocket-size version (smaller format).
For third-party alternatives, compare on: published particle and ion data, ink resistance to IPA, packaging discipline, and your area classification requirements.
11) Critical environment fit for this product
Manufacturer-stated suitability covers ISO Class 3–8 (Class 1–100,000) and EU Grade A–D. The compact 5.5" x 8.5" format makes TX5741 particularly suited to line-side, cart-mounted, and equipment-side use where a full-size notebook is impractical.
Treat cleanroom stationery as a controlled consumable: define where notebooks may be opened, how they are wiped (if permitted), the writing instruments allowed, and how entries are retained under your document-control system.
12) SOSCleanroom note about SOPs
The Technical Vault is written to help customers make informed contamination-control decisions and improve day-to-day handling technique.
It is not your facility’s Standard Operating Procedure (SOP), batch record, or validation protocol.
Customers are responsible for establishing, training, and enforcing SOPs that fit their specific risks, products, equipment, cleanroom classification, and regulatory obligations.
Always confirm material compatibility, cleanliness suitability, sterility requirements, and acceptance criteria using your internal quality system and documented methods.
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.
13) Source basis
SOSCleanroom is the source for this Technical Vault entry.
Briefed and approved by the SOSCleanroom (SOS) staff.
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Last reviewed: May 4, 2026
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