keratin protein
ChemistryWolle is specified as keratin protein. Density band ~1.31 g/cm³.
What holds Wolle together is not the nickname. Formula keratin protein, density ~1.31 g/cm³.
Meters are atlas-relative. Grades are the SKUs buyers write.
Phasen
Microstructure
OrderProcessing sets grain, crystallinity or fibre orientation — the reason two lots of Wolle can test differently.
Interfaces
SurfacesCoatings, oxide films, sizings or paper faces often decide weather and fire behaviour more than the bulk brochure.
Defects
FlawsInclusions, voids, knots, pinholes or residual stress start the failures that mill certificates do not list.
Grades
VariantsWolle is a family. Grade names below are the ones buyers actually write on RFQs.
Ageing
TimeMoisture, UV, creep, hydrogen or carbonation shift properties in service. Design to the aged state.
Relative Meter
Strength32
Strength is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Heat envelope38
Heat envelope is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Fire behaviour48
Fire behaviour is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Insulation72
Insulation is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Workability70
Workability is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Circularity58
Circularity is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Sorten
Fine merino <18 µm
Next-to-skin.Next-to-skin.
Medium 21–24 µm
Suiting.Suiting.
Crossbred
Carpets, knit outer.Carpets, knit outer.
Lambswool
First clip softness.First clip softness.
Recycled wool
Shoddy / mungo tradition.Shoddy / mungo tradition.
Bindungen
Primary bonding
Wolle holds together by covalent chain chemistry.
Secondary forces
Hydrogen bonds, van der Waals stacks or grain-boundary cohesion set toughness and moisture uptake.
Composites & fills
Fillers, fibres, plasticisers or aggregates are part of the real product, not impurities.
Environment film
Oxides, chars, sizings or paints are the layer the world actually meets.
Change the grade, the coating or the moisture and you have a different material with the same English name.
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