US 12,188,161 B2
Method and plant for producing a filling material and filling material
Carlo Cassigoli, Lugo (IT)
Assigned to MINARDI PIUME S.R.L., Lugo (IT)
Appl. No. 17/998,397
Filed by MINARDI PIUME S.R.L., Lugo (IT)
PCT Filed May 13, 2021, PCT No. PCT/IB2021/054110
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/229498, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 102020000011041 (IT), filed on May 14, 2020.
Prior Publication US 2023/0175175 A1, Jun. 8, 2023
Int. Cl. D04H 1/4382 (2012.01); D01G 13/00 (2006.01); D04H 1/425 (2012.01); D04H 1/732 (2012.01)
CPC D04H 1/43835 (2020.05) [D01G 13/00 (2013.01); D04H 1/425 (2013.01); D04H 1/732 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A filling material comprising goose and/or duck down and vegetable kapok fibres, comprising:
a) hybrid goose and/or duck down comprising elementary kapok filaments not tied to one another, the elementary kapok filaments being incorporated in flakes of goose and/or duck down in an amount equal to or greater than 10% by weight of the total weight of kapok, and
b1) goose and/or duck down, and
b2) disentangled kapok fibres, made of clusters of elementary kapok filaments bound to each other and not incorporated in the flakes of goose and/or duck down, and having a weight equal to or greater than 0.05 g, and in an amount equal to or lower than 20% by weight of the total weight of kapok.