felt
Enable an agent to recognise felt, assess its condition and suitability, and choose handling, fabrication and reuse actions appropriate to its fibre composition and consolidation.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise felt, assess its condition and suitability, and choose handling, fabrication and reuse actions appropriate to its fibre composition and consolidation.
Felt is a textile material formed by consolidating fibres through matting and entanglement rather than weaving or knitting, commonly by wet felting animal fibres or mechanically needle-punching a fibre web.
It can be Compare felt grades against an application's thickness, compression, integrity and exposure requirements.; Select cutting, stitching, forming or bonding actions from composition and construction evidence.; Orient and size pieces using measured directional behaviour and dimensional stability.; Choose cleaning and drying procedures supported by treatment information or representative trials.; Inspect worn felt and decide whether to retain, replace, repurpose or route it for material recovery..
Distinguishing features
Inspect the material for a consolidated fibre network rather than an organised interlacing of yarns or knitted loops.
Distinguish felt from loose batting by establishing whether the fibres form a coherent body during handling; record the assessment method.
Distinguish wet-felted material from needle-felted material using production evidence and supporting structural observations rather than appearance alone.
Check cut edges, cross-sections and any backing to distinguish felt from pile fabric, flocked surfaces and felt-faced composites.
Require construction evidence when distinguishing felt from adjacent nonwoven categories; a trade name or soft surface alone is insufficient.
Scope
+ Fibre composition, blends and recoverable evidence of material provenance
+ Felting or consolidation route, including supplementary binders and finishes
+ Sheet, roll and shaped felt geometry and internal structure
+ Compression, surface integrity, moisture response and application-relevant performance
+ Condition, fabrication compatibility, care and recovery constraints
- The emotional or tactile verb sense of felt
- Complete hats, pads, filters and other products made from felt
- Felting machines, needles and manufacturing equipment
- Woven and knitted textiles whose underlying structure remains their defining construction
- Foams, leather and other nonfibrous sheet materials
- Products called roofing felt whose classification requires a separate boundary decision
Characteristics
- Fibre composition
- Fibre names and mass percentages where established; unknown fractions recorded Composition informs consolidation behaviour, moisture response, care and recovery options.
- Consolidation route
- Wet-felted; needle-felted; combined route; other documented route; unknown The route helps explain cohesion, surface texture and differences in material response.
- Binder, finish and backing
- Identified treatment or attached material, amount where known, and evidence status Added materials can govern bonding, cleaning, exposure compatibility and recyclability.
- Thickness under specified pressure
- mm, with contact pressure in kPa and conditioning recorded Compressibility makes an unqualified thickness value unreliable for fitting and comparison.
- Areal mass
- g/m² for sheet or roll material Together with thickness, it helps compare how much fibre is packed into the material.
- Compression and recovery
- Thickness reduction and residual thickness loss in %, with load, dwell time and recovery interval These measurements support decisions about padding, spacing and repeated loading.
- Directional integrity
- Breaking force in N at a stated specimen width and orientation, using a recorded method A felt may behave differently across directions despite lacking woven yarns.
- Moisture-related dimensional change
- Length, width and thickness change in % after a specified exposure and drying procedure Dimensional changes can invalidate a fit or alter the material's function.
- Material condition
- Observed matting, thinning, shedding, tearing, contamination, odour or biological damage; location and severity Local damage and contamination can limit use even when nominal material specifications remain suitable.
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.felt
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 16 findings · 24 questions.
Felt identity and construction Establish which material sense is present and how its fibres form a coherent body.
The name felt spans constructions and trade usages that cannot safely be treated as equivalent.
Material boundary
Separate felt from adjacent textile constructions and composite surfaces.
Construction evidence
Record evidence for a consolidated fibre network, including any yarn structure, substrate or distinct facing.
- What observed construction supports identifying this material as felt? definition
- Is the assessed body felt throughout, or a felt layer attached to a different substrate? boundary
Fibre and process provenance
Identify constituent fibres and the documented means of consolidation.
Composition and consolidation
Keep measured, supplier-declared and inferred composition and process information distinguishable.
- Which fibres and blend proportions are established, and what evidence supports them? provenance
- Was the material wet-felted, needle-felted or consolidated by a documented combination of processes? provenance
Felt geometry and integrity Describe the material's dimensions, fibre packing and resistance to separation.
Felt thickness depends on measurement pressure, while local and directional variation can affect usable performance.
Thickness and fibre packing
Relate conditioned dimensions and mass to variation across the material.
Conditioned section profile
Record thickness under a stated pressure, areal mass where applicable and the locations sampled.
- What thickness is measured under the stated contact pressure and conditioning? measurement
- How do thickness and areal mass vary across the usable piece or roll? measurement
Cohesion and surface
Assess fibre retention, edge behaviour and directional strength.
Fibre network integrity
Record separation, shedding and surface wear under defined handling or test conditions.
- How much fibre shedding or edge separation occurs under the intended cutting and handling conditions? measurement
- Does resistance to pulling or tearing differ between sampled orientations? measurement
Felt response in use Connect compression and exposure behaviour to a proposed material use.
A felt's appearance does not establish its cushioning, dimensional stability or suitability for an exposure.
Compression and recovery
Characterise deformation during loading and recovery after unloading.
Load-dependent thickness
Associate compression and residual deformation with load, time, cycling and conditioning.
- How much does thickness decrease under the proposed load and dwell time? measurement
- How much thickness returns after unloading, and does repeated cycling change that recovery? measurement
Moisture and exposure
Assess changes caused by relevant wetting, drying, heat and chemical contact.
Exposure-conditioned suitability
Tie suitability decisions to evidence for the actual fibre blend, treatments and exposure conditions.
- What dimensional or cohesion changes follow the expected wetting, agitation and drying cycle? measurement
- What evidence supports use of this particular felt under the intended temperature or chemical exposure? action
Felt fabrication and service life Guide conversion, care and end-of-use decisions for the identified felt.
Fibre composition, finishes and accumulated wear constrain how felt can be joined, maintained and recovered.
Cutting, forming and joining
Determine whether proposed fabrication preserves dimensions and fibre integrity.
Fabrication compatibility
Record representative trial results for the intended cut, shape or joint.
- Which cutting or forming trial preserves the required edge quality, thickness and dimensions? action
- Does the proposed stitched or bonded joint resist pull-through, separation and unacceptable local stiffening? measurement
Care, wear and recovery
Assess current damage and select supported maintenance or recovery actions.
Remaining material usability
Relate wear, contamination and treatment history to continued use and available recovery routes.
- Can a supported cleaning procedure remove the contamination without unacceptable shrinkage, shedding or finish loss? action
- Given its wear, fibre blend, binders and attached materials, should this felt remain in use, be repurposed or enter an identified recovery route? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- The sense covered is the textile material, not the past tense of feel or a particular felt article.
- Thickness is illustrative of craft sheets only; industrial felt has widely varying thickness, density and composition.
- Terminology around felt, bonded nonwovens and fulled fabrics varies; application-specific standards and performance requirements need verification.
- Which of these check these first hold for the sense of felt this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Wet-felted wool felt
- Needle-punched wool felt
- Needle-punched synthetic felt
- Fur felt
- Blended-fibre felt
- Which of these kinds and varieties hold for the sense of felt this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- Harmonized System (HS) - 5602 - Customs heading for felt, whether or not impregnated, coated, covered or laminated; classification of finished felt articles may differ.
- Which of these identifiers and schemes hold for the sense of felt this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Hats, footwear, craft work and decorative textiles
- Industrial seals, gaskets, wipers and lubricant-retaining pads
- Sound absorption and vibration damping
- Furniture pads and protective packaging
- Piano hammer coverings
- Which of these real-world use hold for the sense of felt this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Thickness of common craft felt sheets - Approximately 1-5 - mm
- Which of these typical measurements hold for the sense of felt this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Abrasion can cause pilling, fibre shedding and loss of thickness.
- Repeated loading can cause permanent compression and loss of cushioning or sealing performance.
- Wool felt can shrink or distort under unsuitable washing and agitation.
- Wool and fur felt can suffer damage from clothes moth or carpet beetle larvae.
- Fire behaviour depends on fibre composition and treatments; synthetic felt may melt, and burning material can produce hazardous smoke.
- Which of these failure modes and hazards hold for the sense of felt this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Central Asian traditions use wool felt extensively in portable dwellings, rugs and clothing.
- Which of these regional variation hold for the sense of felt this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Nonwoven textile - Nonwoven textile is the broader category; many nonwovens are bonded without the fibre entanglement characteristic of felt.
- Woven cloth - Woven cloth has interlaced warp and weft yarns; felt does not require a woven yarn structure.
- Fulled wool cloth - Fulled cloth begins as woven or knitted fabric that is subsequently consolidated; felt can be made directly from loose fibres.
- Roofing felt - Roofing felt names a roofing underlay or membrane product, often containing bitumen; the trade name alone does not establish that it is textile felt.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of felt this model covers, and on what evidence? provenance
What the second pass must settle
- Which authoritative textile definitions should establish this registry entry's boundary with fulled woven cloth, bonded nonwovens and products marketed as roofing felt?
- Which test methods and conditioning procedures should be adopted for comparable thickness, compression recovery, shedding and directional integrity records?
- Which fibre blends, consolidation routes and treatments require distinct handling rules within this single model?
- Which application-specific measurements, such as permeability, acoustic absorption or thermal behaviour, warrant optional layers once actual use cases are established?
- What evidence and acceptance criteria should support reuse or recovery decisions for contaminated, blended or adhesive-backed felt?