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US 11,807,960 B2Granted
Free fibre padding structure and method for the production thereof
AssigneeFisi Fibre Sintetiche S.P.A.
InventorsLucio Siniscalchi, Patrizio Siniscalchi
Life of this patent
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Abstract
A free fibre or loose fibre structure for padding comprising a shell containing a plurality of free or loose fibres, said structure being characterised in that said free or loose fibres have a cut that reproduces the length, and in part the fineness, of genuine goose down.
Claims4
A method for the manufacture of a free fibre or loose fibre padding, said fibre padding comprising a plurality of free or loose fibres, said free or loose fibres having a length ranging between 2 and 28 mm, with a titre or count that ranges between 0.8 den and 4 den;
- said method comprising sequential steps of:
- feeding said fibres through a bale opener;
- pneumatically sending said fibres into a ventilation chamber which performs suction of said fibres by means of two rotating cylinders which start to open said fibres;
- feeding said fibres through a subsequent sector with rotating discs;
- and
- completing separation of said fibres from one another in a subsequent opener;
- whereby during said sequential steps said fibres being brought to a temperature ranging between 50 and 80° C. and being moved by ventilation systems that cause said fibres to curl.
4 more elements
Dependencies are inferred from the claim text.