240gsm printed fleece throw swatches with marked test zones, sealed retain samples, and azo compliance paperwork on a mill quality table

Start with the exact legal reference and scope

For EU textile articles, buyers usually cite REACH Regulation (EC) No 1907/2006, Annex XVII, Entry 43 for azo colourant control. Entry 43 restricts azo dyes that may release certain aromatic amines listed in that entry, as amended, in textile and leather articles that may come into direct and prolonged contact with human skin or the oral cavity. For sourcing purposes, a fleece throw generally falls within that article category because the body fabric is intended for prolonged skin contact in normal use.

Be precise about component scope. The fleece body fabric is plainly in scope. Binding, piping, labels, sewing thread, webbing straps, and internal textile parts should be treated as in scope where direct and prolonged skin contact is reasonably expected in normal use. A sewn-in hem label that can brush the user, a contrast edge binding, or a textile carry loop used while wrapped in the throw may justify testing. An internal hidden reinforcement layer with no realistic user contact may not. Write that distinction into your file instead of assuming every coloured part is automatically included or excluded.

The restriction limit used in practice is 30 mg/kg for each listed aromatic amine. In buyer documents, avoid wording that confuses the legal limit with the reporting limit. A stronger PO clause is: Finished goods shall comply with REACH Annex XVII Entry 43. Any coloured textile component within scope of the finished article shall not contain any listed aromatic amine above 30 mg/kg when tested in accordance with the applicable method by an ISO/IEC 17025 accredited laboratory. That wording is tighter than ‘not detected above 30 mg/kg’ and avoids implying every laboratory must achieve the same LOQ regardless of matrix. For shipment release, pair the chemical hold point with your final inspection file under blanket-quality-control-inspection.

Use EN ISO 14362 correctly: method depends on fibre and colourant chemistry

Buyers often write ‘azo test to EN ISO 14362-1’ as if that solves every printed polyester article. It does not. EN ISO 14362-1 and EN ISO 14362-3 are methods for the determination of certain aromatic amines derived from azo colorants in textiles. Method choice depends on the fibre matrix, the colourant system, and the laboratory’s chemical assessment of the submitted specimen.

EN ISO 14362-1 is commonly used for many dyed or printed textile materials, but it is not a universal default for every polyester print or transfer construction. EN ISO 14362-3 is relevant in specific cases involving certain colorants that may release 4-aminoazobenzene. The lab may need to choose one, the other, or a staged approach depending on whether the print system, dyestuff class, or extraction behaviour suggests additional assessment. Buyers should therefore require the lab to identify the applicable method for each tested component, rather than forcing one method number across all zones.

A report that only states ‘AZO PASS’ is weak. A usable report should show: tested article description; each component or zone tested; whether sample preparation was separate or composite; method reference used for each zone; reporting limit or LOQ; and whether any listed aromatic amine exceeded 30 mg/kg. If the article has dense print coverage, layered print effects, dark transfer panels, or multiple trims from separate suppliers, ask the lab before submission whether separate extractions are required. Performance tests such as iso-105-x12-rubbing-fastness-for-red-300gsm-flannel-fleece-throws-dry- are still useful, but they do not substitute for Entry 43 compliance.

Understand the risk pathways on printed fleece

On a 240gsm printed flannel fleece throw, risk sits mainly in the coloured chemistry, not in the fleece substrate itself. Higher-risk zones are usually the darkest grounds, high-coverage prints, deep reds, blacks, navies, dark contrast bindings, coloured woven labels, and any trim bought from a different supplier than the body fabric. Risk increases when colourant recipe control is weak, shade matching is subcontracted, or changeovers are frequent.

Keep the distinction clear between dye and pigment pathways. A pigment print is not non-compliant simply because it is pigment printed. Non-compliance may arise from azo-based colorants within the print system, from mixed tint concentrates, or from contamination and substitution in the ink or paste supply chain. The same logic applies to disperse prints, transfer prints, or sublimation routes: the risk mechanism changes, but no route should be cleared by category alone.

Do not exclude a pale or white reverse side only because it looks low risk. Exclusion should be based on no intentional coloration and documented material and process equivalence. If the reverse is the same greige, same finishing route, and has not been dyed or printed, a lab may justify excluding it from separate testing. If the reverse uses a separately dyed face/back construction, printed panel, laminated layer, or different supplier source, test it as its own zone. On adjacent fleece constructions and print routes, see flannel-fleece-blanket-orders-at-260gsm-brushed-finish-colorfastness-a.

Set the scope by component and colour zone, not by SKU name

Before sending samples, break the throw into a component map. For a typical printed fleece throw, that can include: printed fleece face, reverse fleece if separately coloured or finished, binding or hem tape, decorative piping, sewing thread where dark or separately sourced, woven or printed textile labels, and any textile strap, pouch, or sleeve sold with the article.

For a buyer file, classify components as follows. Mandatory separate assessment: darkest printed face zone; any separately dyed reverse; darkest coloured binding or piping; dark woven label; coloured webbing or pouch from another supplier. Conditional: sewing thread, if tone-on-tone and sourced with the body program; pale labels if no intentional coloration beyond base fibre and contact is limited; internal textile reinforcements with no realistic direct and prolonged contact. Normally out of scope for Entry 43 testing: clearly non-textile hardware, unless customer protocol widens the chemical screen beyond Entry 43.

A practical first-pass zoning plan for a printed fleece throw is: Zone A darkest/highest coverage print area on the face; Zone B any separately coloured base ground; Zone C darkest contrast trim; Zone D darkest accessible label or webbing. That is stronger than sending one cut swatch from the centre. If your programme includes more layered constructions, carry the same zoning logic into picnic and backed articles; see picnic-blanket-backing-peva-pu-tpu.

Be careful with composite testing

Composite testing can reduce laboratory cost, but it has a known weakness: a localized failing component can be diluted by compliant material from other zones. That matters on fleece throws because a small dark woven label, black edge tape, or contrast piping can carry more chemical risk than the bulk face fabric by weight.

Use separate testing for any of these conditions: visually different dark trims; labels from a different supplier; distinct print colours with heavy black, red, or navy load; different production routes such as dyed binding on a printed body; complaint history; or any retailer protocol that requires per-component reporting. Composite testing is more defensible where the materials are chemically equivalent, same source, same colourant family, and the lot has a stable compliance history.

If composites are used, require the lab to state which parts were combined, in what preparation approach, and why that approach is technically suitable. Do not accept a report that hides the sample composition. For buyer protection, the PO can state: High-risk visually distinct dark components shall be tested separately unless the laboratory documents technical justification for compositing and the buyer approves in writing.

Define the production lot and write an acceptance rule

‘One sample per lot’ is too loose unless the lot itself is defined. For printed fleece throws, a practical lot definition is: same style, same colourway, same print recipe, same greige or yarn source, same dyeing/printing site, same trim source, and one continuous production batch or date-coded run. If any of those change, treat it as a new lot for compliance purposes.

A workable routine sampling rule is: pull 3 finished units at random per production lot after bulk finishing and before final packing. From those units, submit the defined high-risk zones. At minimum, send the darkest printed face area from all 3 units and one specimen of each separately sourced coloured trim in that lot. Where the same trim appears on all units from the same trim batch, one trim submission may be enough if the lot traceability is clear. For first orders, unstable suppliers, or failed history, increase to 5 finished units and separate all visually distinct dark trims.

The acceptance rule should be explicit. Pass: all required tested zones comply, meaning no listed aromatic amine exceeds 30 mg/kg under the applicable method. Fail: any required tested zone exceeds 30 mg/kg. Hold / not assessed: any required zone is missing, unidentified, or the report does not state method and component clearly. If one zone fails, do not average the result across the article. The lot should be placed on hold and either rejected or resubmitted only after corrective action such as trim replacement, recipe correction, or rework that creates a clearly segregated new lot. Retesting should then use fresh samples from the corrected lot, usually under intensified sampling.

For repeat programmes with stable history, some buyers move to reduced cadence only after three consecutive compliant lots with no material, supplier, or process change. Even then, any change in print recipe, colourant supplier, trim source, or production site should trigger re-evaluation before shipment. Align the chemical lot code with your visual inspection lot under aql-2-5-inspection-checklist-for-200gsm-coral-fleece-promotional-blank.

Set report, chain-of-custody, and document controls

Use an ISO/IEC 17025 accredited laboratory for the relevant azo testing scope. Ask for the accreditation body and, where needed, confirmation that the method used for the submitted matrix is within scope or technically justified. Accreditation is not a substitute for good sampling, but it reduces the risk of non-traceable internal screening being passed off as formal compliance evidence.

The report should identify: buyer PO number; style number; colourway; factory name; production lot code; sample receipt date; tested zones or components; whether the sample preparation was separate or composite; the applicable method; reporting limit or LOQ; and a clear statement on whether any listed aromatic amine exceeded 30 mg/kg. If a component was excluded, the report or attachment should state the basis, such as no intentional coloration and documented process equivalence.

Documentary controls should sit alongside testing. Require the supplier to keep: dye or ink declarations from the dye house or print house; trim material declarations for labels, tape, and webbing; batch or recipe records linking the tested sample to production; and a change-control record for any print paste reformulation, colourant supplier change, trim source change, or site transfer. A clean report without recipe and lot linkage is weaker in a retailer audit or customer complaint file.

For chain of custody, retain photographs of each sampled zone with a marker or ruler, sealed retain swatches, and the sample handover record. A practical retention period is at least 12 months after shipment, and often longer if your customer chargeback window or claim policy runs past one year. For related buyer-facing guidance on compliance files, see textile-certifications-explained-buyers.

Buyer-ready PO language and lab request checklist

Below is workable PO language that procurement and QC can use without overpromising on method selection: Finished goods shall comply with REACH Regulation (EC) No 1907/2006 Annex XVII Entry 43, as amended. Any coloured textile component within scope of the finished article shall not contain any listed aromatic amine above 30 mg/kg when tested in accordance with the applicable method by an ISO/IEC 17025 accredited laboratory. The laboratory report shall identify each tested component or zone, sample preparation approach, applicable method, reporting limit or LOQ, and whether any listed aromatic amine exceeded 30 mg/kg.

Add a change-management clause: Any change in print recipe, colourant supplier, trim source, production site, dye house, print house, or component construction after sample approval shall trigger re-evaluation and, where applicable, retesting before shipment. No shipment may be released against a previous report where such change has occurred without buyer approval. This is one of the most useful lines in the PO because many azo failures come from uncontrolled substitutions, not from the approved lab dip or proto sample.

Use this lab request checklist: 1) style number and colourway; 2) finished lot code; 3) component map with marked zones A, B, C, D; 4) note which parts are separate submissions and which are proposed composites; 5) identify any separately sourced trims; 6) request the lab to select the applicable EN ISO 14362 method based on matrix and colourant chemistry; 7) request reporting of sample preparation, method, LOQ, and pass/fail against 30 mg/kg; 8) ask the lab to comment if any excluded reverse side or trim appears to require separate testing based on chemistry or coloration.

Use this factory file checklist: 1) approved artwork and shade reference; 2) print recipe or colourant declaration; 3) trim declarations; 4) lot traceability from sample to shipment; 5) final inspection record; 6) retained swatches; 7) corrective action file for any failed lot. If the programme is recycled or claim-based as well as compliance-sensitive, align those files separately rather than assuming one report covers all requirements; see rpet-polar-fleece-blankets-with-grs-certification-documentation-buyers.

Frequently asked

Does REACH Annex XVII Entry 43 apply to a printed fleece throw? Usually yes. A fleece throw is generally a textile article intended for direct and prolonged skin contact in normal use, so the body fabric is typically within scope. Labels, piping, binding, and internal textile parts should be treated as in scope where such contact is reasonably expected.

What is the limit for restricted aromatic amines under Entry 43? The working limit is 30 mg/kg for each listed aromatic amine in Annex XVII Entry 43, as amended. Buyers should state that the article shall not contain any listed aromatic amine above 30 mg/kg when tested in accordance with the applicable method.

Should buyers always specify EN ISO 14362-1? No. EN ISO 14362-1 and EN ISO 14362-3 are used for certain aromatic amines derived from azo colorants in textiles, but method selection depends on fibre and colourant chemistry plus lab assessment. The PO should require an applicable method, not force one method number for every component.

Is pigment printing automatically low risk for azo compliance? No. Pigment printing as a category is not the issue by itself. Risk can arise from azo-based colorants in the print system, from mixed tint concentrates, or from contamination and substitution in the print supply chain.

Can a white or pale reverse side be excluded from testing? Sometimes, but not based on appearance alone. Exclusion is more defensible where there is no intentional coloration and the supplier can document material and process equivalence to an already assessed uncoloured component.

When should trims be tested separately instead of in a composite? Separate testing is safer for dark or visually distinct trims, labels from a different supplier, different print routes, complaint-history items, or any component likely to be diluted in a composite. Composites reduce cost but can mask a localized failure.

What should happen if one tested zone fails above 30 mg/kg? Treat the lot as failed or on hold. Do not average the result across the article. The supplier should correct the root cause, segregate any reworked or replaced material into a new identified lot, and then resubmit under intensified sampling before shipment.

What documents should buyers require besides the lab report? At minimum: dye or ink declarations, trim declarations, recipe or batch records, change-control records, traceability linking tested sample to production lot and shipment, retained swatches, and the final inspection record.

Have a project in mind? Send us your spec — we'll reply within one business day with indicative pricing and a sample plan.

Related