First decision: report, type approval, or owner acceptance?
Do not buy a cruise cabin blanket against a vague phrase such as “flame retardant”, “marine approved” or “IMO fabric”. The purchase specification should name the route required by the ship manager, flag administration, class society and technical superintendent. For a loose cabin blanket, the common technical starting point is 2010 IMO FTP Code, Annex 1, Part 9: Test for bedding components, adopted by IMO Resolution MSC.307(88), as amended where applicable. Part 7 is for vertically supported textiles and films such as curtains. Part 5 is for surface flammability of bulkhead, ceiling and deck finish materials. They are not interchangeable.
A Part 9 test report is not the same thing as flag acceptance, class acceptance, type approval, MED approval, UK marine approval, USCG acceptance or owner approval. It is a laboratory result for the tested bedding component and construction. An ISO/IEC 17025-accredited laboratory is normally preferred and often requested, but accreditation alone does not turn a blanket into approved marine equipment.
Use this decision table before sampling:
| Supply situation | Buyer should ask for | Practical note |
|---|---|---|
| Hotel-style cabin blanket supplied as loose bedding to an existing vessel; no explicit MED/UK/USCG type approval clause in the tender. | Finished-article Part 9 report, bill of materials, sample reference, fibre/trim declarations and written owner/class acceptance if required. | Often handled as owner/class technical acceptance, but the vessel’s flag/class can still require more. |
| Newbuild or refit package for an EU-flagged vessel where the technical specification lists MED/wheel-marked fire protection materials or marine equipment documentation. | Written confirmation whether the blanket is within the project’s MED scope; if yes, applicable type approval certificate, declaration of conformity and module evidence. | Do not assume a Part 9 report alone satisfies a wheel-mark requirement. |
| UK-flagged project or UK-controlled approval package. | UK marine approval documentation requested by the project, plus Part 9 evidence for the finished blanket construction. | UKCA-style or UK marine approval files are not automatically replaced by an EU-style file. |
| US-flagged vessel, USCG-inspected vessel, or owner specification referencing USCG acceptance. | Ask for the USCG route required: accepted laboratory report, approval/acceptance evidence, or owner/class equivalency review. | USCG applicability is project-specific. Confirm before bulk order, not at delivery. |
| Promotional passenger throw, retail blanket sold in onboard shop, or non-cabin guest item. | Clarify whether it is treated as ship furnishing, retail merchandise, or temporary item. Fire, labelling and chemical compliance may differ. | Part 9 may not be the only relevant requirement; consumer textile rules may also apply. |
For the purpose of the fire route, define the product as either a bedding component or a finished bedding article. Bulk fleece fabric is only a component material. A blanket with bound edges, labels, RFID pocket and logo patch is a finished bedding article or finished bedding component, depending on the authority wording. For procurement, test the finished blanket construction unless the approval body has confirmed that component testing plus an engineering assessment is acceptable.
Trevira CS helps because it is a branded inherently flame-retardant polyester: the FR property is built into the polymer rather than applied only as a surface finish. That usually gives better wash durability than many topical FR treatments. It does not approve every finished blanket. The final article includes fleece density, brushing, shearing, binding tape, sewing thread, woven labels, care labels, RFID pockets, embroidery and logo patches. Any one of these can alter ignition behaviour.
A practical PO line is: “260gsm Trevira CS polyester fleece cabin blanket, finished size 150 x 200 cm, bound edges, finished article to be tested to 2010 IMO FTP Code Annex 1 Part 9 by an ISO/IEC 17025-accredited laboratory; report must identify fibre source, construction, colour, GSM, trims, laundering condition and sample reference; final acceptance subject to vessel owner, flag/class or applicable marine authority review.”
What the Part 9 report must prove
The buyer should be able to read the Part 9 report without guessing. Ask the laboratory to state that the test was conducted to 2010 IMO FTP Code, Annex 1, Part 9, “Test for bedding components”, including the smouldering cigarette ignition source and the small open-flame ignition source required by the Code. The report should identify the exact article tested: blanket, coverlet, pillow, mattress overlay or another bedding component. A blanket report should not be used to approve a quilted assembly, mattress topper or poncho blanket unless the authority accepts the extension.
For buyer review, the report should explicitly state that the specimens did not show progressive smouldering ignition and did not show flaming ignition under the Part 9 definitions. In buyer-friendly terms, check that the report confirms no continuing or escalating smouldering, no smouldering to the specimen edge or through the full thickness, no unsafe self-propagating combustion after the ignition source is removed, and no flaming behaviour exceeding the Code acceptance limit. Part 9 acceptance is normally expressed through these ignition/non-ignition criteria rather than a decorative “FR pass” stamp.
For the small-flame portion, report review should include the burner exposure used, flame contact point, whether flaming continued after removal of the burner, and whether any flame spread, melt-drip ignition or edge involvement occurred. A common rejection risk is not the face fleece alone but the binding, label or pocket continuing to burn after the face fleece self-extinguishes.
Do not accept a report that only says “FR pass” without observations. The report should record specimen dimensions, number of specimens, orientation, conditioning atmosphere, ignition source location, exposure duration, flaming time, afterglow or smouldering observations, damaged length or area where recorded by the method, photographs if available, and final pass/fail against the Code criteria.
Testing should be done on the finished article construction, not only on bulk fleece fabric. If the production blanket uses bound edges, care label, brand label, RFID pocket, embroidery, printed logo or applique patch, those elements should be present in the tested specimen or covered by a written engineering assessment accepted by the authority. A clean fabric swatch is useful for development screening; it is not a substitute for finished blanket testing where approval is required.
Where the project requires approval rather than only a lab report, keep the approval chain together: laboratory report, technical file, bill of materials, drawings or photographs, sample reference, approval certificate or letter, declaration of conformity where applicable, and any conditions or limitations printed on the approval document. Buyers should check that the certificate holder, manufacturer, product name, construction, colour scope and date are consistent with the supplier and blanket being ordered.
Document fields that prevent traceability failures
Marine review often fails because the product may be acceptable but the file cannot prove what was tested. Put these fields into the supplier technical data sheet and require the same references on the test sample submission form:
- Finished article name: for example, “260gsm Trevira CS polyester fleece cabin blanket with bound edge”.
- Finished size and tolerance: for example, 150 x 200 cm ±3 cm after relaxation, or tighter if the cabin programme requires it.
- Fibre composition by percentage: normally 100% Trevira CS polyester for the fleece face/body. If binding or thread differs, declare separately.
- Trevira CS fibre or yarn evidence: supplier authorisation, yarn invoice reference, lot reference or brand documentation where available. Do not describe this as finished-blanket approval.
- Yarn count or denier where controlled: for example, polyester filament or spun yarn specification used by the fleece knitter; keep mill records even if not printed on the PO.
- Finished GSM target and tolerance: for example, 260gsm ±5% after finishing and conditioning.
- Colour reference: Pantone, customer lab dip number, mill dye recipe reference or approved shade standard; include colour family.
- Dye/chemical process: disperse-dyed, dope-dyed if applicable, anti-pilling finish, softener class, antistatic finish if used.
- Lot number and roll/batch numbers: must connect greige fabric, dye lot, finishing batch, cutting batch and carton packing list.
- Trim declarations: binding tape fibre, thread fibre, label fibre, embroidery thread, backing paper, heat-transfer film, patch substrate, RFID pouch film and any adhesive.
- Care label artwork and fibre label wording.
- Test sample reference: sealed sample number, date, colour, size, weight and retained duplicate location.
Trevira CS should be treated as a controlled input, not as a shortcut. The buyer needs evidence that the fibre/yarn supply chain is authorised or traceable, and separate evidence that the finished blanket construction meets the project’s fire requirement. Branded inherently FR fibre plus a conventional polyester binding is not the same as a compliant finished blanket.
New and laundered samples: specify the wash protocol before testing
For cruise use, testing only a new unwashed blanket may be too weak if the blanket will go through industrial laundry before or during service. Ask the owner, class or approval body whether Part 9 testing is required on new samples, laundered samples, or both. If the authority is silent, a conservative sourcing file keeps both: one new-condition Part 9 report and one laundered-condition Part 9 report using an agreed laundry protocol.
ISO 6330 is a domestic washing and drying method. It is useful for repeatable comparison but does not represent many cruise laundries. For commercial laundering, a stronger default is to agree a protocol based on ISO 15797 industrial washing and finishing procedures, adapted to the ship or laundry contractor’s chemistry and temperature. If the vessel operates a textile hygiene management system, EN 14065 may appear in the laundry contractor’s process control file, but it is not itself a blanket flame test.
A practical cruise validation protocol for 260gsm Trevira CS fleece is: 25 wash/dry cycles for standard cabin use; 50 cycles for heavy rotation or rental-style use; wash at 40–60°C according to care label; non-chlorine detergent; no cationic softener unless it will be used onboard and has been validated; tumble dry low/medium with outlet temperature controlled; cool fully before folding; then measure dimensions, appearance, pilling, lint and flame performance. If the ship uses chlorine bleach, high alkalinity, peracetic acid, tunnel finishing or high tumble heat, reproduce that process or obtain written approval for a substitute protocol.
The laundering report should state the standard or agreed procedure, machine type, load ratio, detergent name or chemistry class, dosage, water temperature, bath ratio if known, number of cycles, drying method, drying temperature, final dimensional change, appearance, pilling, linting, edge distortion and label legibility. The flame-tested specimen should be traceable to that laundered sample set.
For care instructions, start conservatively: wash with similar colours, mild detergent, no chlorine bleach, no fabric softener unless validated, tumble dry low or line dry, do not iron on labels or patches, do not dry clean unless separately tested. For care symbol logic, see our blanket care washing guide.
260gsm fleece: procurement tolerances that should be written down
A 260gsm single-sided or double-brushed polyester fleece is a practical cruise cabin weight because it gives usable loft without the storage bulk of 320–400gsm plush. For a 150 x 200 cm blanket, fabric mass alone is about 780 g before binding, labels and packing. A finished piece commonly lands around 820–900 g depending on binding width, corner construction and label set. A 130 x 180 cm cabin or sofa size usually finishes around 630–720 g.
Specify mass per unit area using ISO 3801 or ASTM D3776/D3776M, and state conditioning before measurement. A defensible routine is conditioning at 20 ± 2°C and 65 ± 4% RH for at least 24 hours, or the laboratory’s stated standard atmosphere if different. Without conditioning, fleece GSM disputes are common because brushed polyester recovers loft after compression and can hold variable surface moisture.
A workable procurement tolerance table for 260gsm cruise fleece is:
| Item | Suggested target | Test or inspection method |
|---|---|---|
| Fabric GSM | 260gsm ±5% after finishing and conditioning; reject below agreed minimum if handfeel or fire file is affected. | ISO 3801 or ASTM D3776/D3776M. |
| Finished size | 150 x 200 cm ±3 cm, or buyer-specific cabin size tolerance. | Measure relaxed blanket flat, no stretch, after 24 h recovery from packing. |
| Finished weight | For 150 x 200 cm, typically 820–900 g including binding and labels; set approved sample ±7%. | Calibrated scale, conditioned sample. |
| Dimensional change after washing | Within ±3% after 5 domestic cycles; agree separate limit after 25 or 50 industrial cycles. | ISO 6330 for domestic comparison or ISO 15797-based protocol for industrial validation. |
| Pilling | Grade 3–4 or better after agreed cycles. | ISO 12945-2, state cycles and pressure. |
| Wash fastness | Shade change grade 4; staining grade 3–4 or better for dark colours. | ISO 105-C06. |
| Rubbing fastness | Dry grade 4; wet grade 3–4, with navy/black reviewed carefully. | ISO 105-X12 or AATCC 8 if specified by buyer. |
| Seam or binding strength | No seam opening under normal handling; typical target 80–120 N for bound edge strip depending on construction. | ASTM D5034 grab adaptation or agreed pull test on finished edge. |
| Binding appearance | No rope twisting, skipped stitches, exposed raw edge, loose corners or melted hard edge. | 100% visual at sewing line plus AQL final. |
| Linting | No objectionable lint after pre-wash/tumble; dark garments should not show heavy fibre transfer. | Buyer-approved tape test or tumble lint collection comparison against sealed sample. |
| Needle/metal control | No broken needle or ferrous contamination in finished pieces. | Needle detection policy, 9-point needle record or factory metal control procedure. |
If a buyer writes 260gsm with no tolerance, the mill may overbuild to avoid rejection, which adds cost and carton volume. If the tolerance is too loose, the blanket can move from cabin-grade to promotional-grade handfeel. For marine projects, also record pile height, brushing passes and shearing target in the development file, even if those controls are not printed on the PO.
The fibre should be specified as 100% Trevira CS polyester for the fleece body, with authorised Trevira CS fibre/yarn evidence where available. Substituting another inherent FR polyester, even if technically similar, requires separate validation and may require retesting or approval amendment. Do not blend conventional polyester, cotton, acrylic, viscose or elastane into the fleece unless the revised construction is separately reviewed and tested.
For broader fleece weight selection, see fleece weight selection for blanket programmes.
Colour and construction test matrix
Buyers should ask exactly what the test report covers. Some reports are construction-specific: one fabric GSM, one fibre source, one brushing level, one binding, one thread, one label set and one colour. Other reports or approvals may be accepted as a family if the only changes are judged not to worsen performance. Do not assume family coverage unless the lab report, approval letter or engineering review says so.
Colour can matter. Deep navy, black, burgundy and charcoal shades use different dye loads and auxiliaries from white, ivory or pale beige. Disperse dye selection, carrier residues, after-treatments, softeners and anti-pilling chemistry can affect burning, smoke, odour, crocking and wash fastness. For a conservative cruise programme, test the darkest or highest-risk colour first. If the range includes both very dark and very pale shades, ask whether both must be tested.
A practical test matrix for a first cruise blanket programme is:
- Construction A: 260gsm Trevira CS fleece body, FR polyester binding, FR polyester thread, woven care label, no patch. Test darkest colour new and after agreed laundry cycles.
- Colour extension: lighter colours in the same dye/finish family may be submitted for authority review using the Construction A report, shade cards and dye declarations. Acceptance is not automatic.
- Logo extension: if embroidery, applique, silicone patch, heat-transfer badge or woven brand label is added, test the finished logo construction or obtain written acceptance for the change.
- Trim extension: if binding width, binding fibre, sewing thread, RFID pocket or label substrate changes, treat it as a construction change until reviewed.
- GSM extension: moving from 260gsm to 220gsm or 300gsm is not only a weight change. Pile density, oxygen access, melting behaviour and edge behaviour can change, so retesting may be required.
Do not let merchandising decisions outrun the fire file. A navy cabin blanket with a small woven label is a different fire-risk article from a pale beige blanket with satin binding, large embroidery backing and PVC RFID pocket. The tested sample should match the production sample that will be delivered onboard.
Trims are the common failure point
The face fleece may self-extinguish while the trim keeps burning. For marine cabin blankets, every non-fleece material needs a declaration and, where relevant, inclusion in the tested specimen. The list is longer than most buyers expect:
- Sewing thread: ordinary spun polyester thread can behave differently from FR polyester thread. Specify FR thread where available and test it in the seam.
- Binding: satin binding, brushed binding, rib binding and fleece self-binding burn differently. Satin polyester can shrink, curl and expose a molten edge.
- Labels: woven labels, printed care labels, heat-transfer labels and brand tabs should be declared by fibre and coating/ink type.
- Embroidery: embroidery thread, bobbin thread and backing paper/nonwoven can introduce conventional polyester, viscose or adhesive.
- Logo patches: PU, PVC, silicone, faux leather, felt and heat-transfer films may need separate review. PVC also raises chemical and smoke concerns for some owners.
- RFID pockets: pocket fabric, film, adhesive and tag encapsulation should be declared. If an RFID tag is sewn into the edge, test the edge construction or obtain written acceptance.
- Corner loops or storage straps: webbing and hook-and-loop tape are separate textile components, not minor decoration.
A conservative marine blanket uses a simple construction: Trevira CS fleece body, FR-compatible polyester binding, FR-compatible sewing thread, minimal label set, no PVC patch, and no untested embroidery backing. If branding is required, place it away from high-wear fold lines and submit the branded version for review before mass cutting.
For edge durability comparison, stadium and emergency blanket constructions show the same seam-risk logic even outside marine use. See seam strength targets for fleece stadium blankets and reflective-piping emergency blanket construction.
Pre-shipment inspection: AQL and compliance checklist
For cruise projects, inspection is not only about stains and stitching. The inspector must verify that the production lot matches the fire-tested and approved construction. Use ANSI/ASQ Z1.4 or ISO 2859-1 sampling, normally General Inspection Level II unless the buyer specifies otherwise. A common setting is AQL 2.5 for major defects and AQL 4.0 for minor defects; critical defects should be zero tolerance.
Critical defects for this product include wrong fibre composition, non-declared conventional polyester substitution, missing or mismatched Part 9 sample reference, wrong binding/thread/label construction, needle contamination, mildew odour, severe oil contamination, incorrect care label that conflicts with the tested laundry protocol, and carton marking that prevents lot traceability.
Pre-shipment checklist:
- Certificate/report matching: product name, manufacturer, construction, colour scope, GSM, trims and sample reference match the PO and approved sample.
- Trevira CS evidence: yarn/fibre lot documentation is available and linked to production batch; do not accept a generic brochure as lot proof.
- Bill of materials: fleece, binding, thread, labels, patches, RFID pocket and packaging match the approved BOM.
- Sample retention: supplier keeps sealed pre-production sample, bulk cutting sample and shipment sample for the agreed retention period, commonly at least 12–24 months for marine programmes.
- GSM check: cut and weigh samples by ISO 3801/ASTM D3776 method or agreed factory method correlated to lab method.
- Finished size and weight: measure relaxed samples from different cartons; record length, width and piece weight.
- Shade: compare under D65 or agreed light source against approved standard; check centre-to-edge and lot-to-lot variation.
- Edge construction: check stitch density, skipped stitches, loose thread, open seams, corner bulk and binding width.
- Label verification: fibre content, care symbols, country of origin if required, batch code and marine/owner label wording where approved.
- Laundry warning: confirm no chlorine bleach/no softener instructions if that was the validated condition.
- Carton marking: PO, item code, colour, size, quantity, gross/net weight, carton number, batch/lot number and destination.
- Packing: avoid excessive compression that crushes pile and causes long recovery; confirm carton dimensions for storage planning.
For a general inspection structure, see our blanket quality control inspection guide and AQL 2.5 blanket inspection checklist.
Commercial specification and lead-time notes
A clean sourcing specification should include: finished size, target GSM and tolerance, fibre source, colour references, trim BOM, edge construction, test route, laundry protocol, packaging, inspection level, document package and Incoterms. For cruise buyers importing from China, the commercial comparison is usually FOB Ningbo/Shanghai versus CIF destination port or DDP to warehouse. Do not compare unit prices unless carton volume, document cost, testing cost and approval responsibility are in the same column.
Testing and approval timing is often longer than sewing. A realistic development path is: 5–10 days for lab dip and trim selection, 7–14 days for prototype and sealed sample, additional time for laundry cycles, then laboratory fire testing and any authority review. If 25 or 50 industrial laundry cycles are required before flame testing, build that time into the critical path before the vessel delivery window.
Bulk fleece production must keep dye lot and finishing batch under control. If a programme splits across multiple lots, each lot should carry traceable roll records and shade banding. Mixed lots in one vessel may be acceptable visually, but mixed lots without documentation create a compliance problem.
If the project needs recycled polyester, antimicrobial finish, heavy plush pile or waterproof backing, do not fold those requirements into this Trevira CS cabin blanket without a fresh review. Each change alters both textile performance and fire documentation. For recycled FR blanket sourcing, review the documentation logic in sustainable recycled blanket sourcing; for general certification terminology, see textile certifications explained for buyers.
Frequently asked
Is Trevira CS fibre alone enough for a cruise cabin blanket? No. Trevira CS is an inherently flame-retardant polyester fibre/yarn platform, but the finished blanket still needs construction-specific evidence. The buyer should verify fibre/yarn traceability, authorised supply-chain documentation where available, finished blanket Part 9 testing, trim declarations and any owner/flag/class approval required by the project.
Does every colour need separate IMO FTP Code Part 9 testing? Not always, but do not assume colour coverage. Some approvals are limited to the tested colour. A risk-based approach usually tests the darkest or highest dye-load shade first, then submits lighter shades in the same dye/finish family for laboratory or authority review. If dyes, softeners, anti-pilling chemistry or finishing recipes differ, separate testing may be required.
Should the lab test fabric swatches or finished blankets? For procurement, test the finished blanket construction whenever possible. A fabric swatch can screen the fleece body, but it does not cover binding, sewing thread, labels, RFID pockets, logo patches or embroidery backing. If the authority allows component testing plus engineering assessment, keep that acceptance in writing.
What Part 9 failure signs should buyers look for in the report? Look for any progressive smouldering, continuing or escalating combustion, smouldering to an edge or through the thickness, sustained flaming after ignition source removal, flame spread involving trims, or melt-drip ignition. The report should give observations and pass/fail against IMO FTP Code Annex 1 Part 9, not only a generic “FR pass” statement.
What is a sensible tolerance for a 260gsm Trevira CS fleece blanket? For bulk production, 260gsm ±5% after finishing and conditioning is practical. A 150 x 200 cm finished blanket often weighs about 820–900 g including binding and labels. Finished size tolerance is commonly ±3 cm unless the buyer needs tighter cabin storage control.
Which laundry protocol should cruise buyers use before flame retesting? If the approval body gives no protocol, agree one before sampling. ISO 6330 is useful for domestic comparison, but cruise validation is better based on ISO 15797-style industrial washing and drying, adapted to the vessel’s real detergent, temperature, drying and softener policy. Many buyers use 25 cycles for procurement validation and 50 cycles for heavy-use programmes.
Can we add embroidery or a logo patch after the blanket passes Part 9? Treat embroidery, patches and heat-transfer logos as construction changes. Embroidery thread, backing, adhesive and patch substrate can burn differently from the fleece. Add the logo to the tested sample or obtain written acceptance from the laboratory, authority or owner before bulk production.
What AQL level is typical for cruise blanket inspection? Many buyers use ISO 2859-1 or ANSI/ASQ Z1.4, General Inspection Level II, with AQL 2.5 for major defects and AQL 4.0 for minor defects. Critical compliance defects should be zero tolerance: wrong fibre, wrong trim, missing traceability, needle contamination or a product that does not match the approved sample.
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