Conas cigireacht bhraith a dhéanamh?
Is é Cigireacht Feilt an rialú cáilíochta d’ábhar darb ainm Feilt.
Sa tionscal faisin cosúil le caipíní agus málaí, is é ceann de na hábhair a úsáidtear iontu. Is ábhar é feilt a dhéantar go príomha as olann agus as snáithíní ainmhithe gaolmhara. Déantar é a fhoirmiú le teas, brú nó corraíl, agus taise ionas go n-éiríonn na snáithíní fite fuaite agus fite fuaite, rud a fhágann nach gá greamacháin a úsáid chun iad a choinneáil le chéile.
Snáithíní eile, cosúil le réón nó cadás, a áireamh in ábhair feilte, but they are used as fillers to reduce the cost of the material. Synthetic fibres are used for synthetic felt.
Like non-woven fabrics, the density, hardness, and thickness of felt can be closely controlled and can be easily shaped, since it has no grain.
Felt has excellent shock and sound absorbency, but poor drape, low tensile strength, and usually will not return to shape when unduly stretched.
Felt inspection
Density of the felt is the key point when selecting felt, because it will loose its recovery oversized, but will have poor abrasion performance. Thickness and fibre catergories effect performance as well. Density is usually measured with the unit of g/cm3.
Felt is classified with wool fineness, density and colour. ach, it is also classified by strength, tensibility and capillarity in the technology.
