Scouring articles and process for the manufacture of same

Details Scouring articles and process for the manufacture of same Scouring articles and process for the manufacture of same

B - Operations, Transporting

24

D

B24D 11/00 (2006.01) A47L 13/16 (2006.01) A47L 17/08 (2006.01) D04H 1/60 (2006.01)

Patent

CA 2218956

Lofty, low density nonwoven pads and a process for the manufacture of such pads are described. The pads of the invention each comprise a bundle of discontinuous fibers bonded to one another at their mutual points of contact. The fibers are arranged within the bundle to provide a dense longitudinal central portion extending to opposite ends of the bundle, less dense side portions, a longitudinal tensile strength and a transverse tensile strength, wherein the longitudinal tensile strength is greater than the transverse tensile strength. The pads are made according to a process comprising forming a tow of discontinuous fibers so that the fibers are arranged within the tow to extend along a first axis, twisting the tow along the first axis to form a slubbed tow, bonding the fibers to one another at their mutual contact points and cutting the slubbed tow into scouring pads and the like.

L'invention porte sur des tampons massifs de non tissés de faible densité et leur procédé de fabrication. Lesdits tampons comprennent un faisceau de fibres discontinues fixées les unes aux autres au niveau de leurs points mutuels de contact et disposées dans le faisceau de manière à constituer une partie centrale longitudinale joignant les extrémités opposées du tampon et des parties latérales de moindre densité et, à donner une élasticité longitudinale et une élasticité transversale moindre que la longitudinale. Le procédé de fabrication consiste à former une mèche de fibres discontinues alignées selon un premier axe, puis à tordre la mèche autour dudit axe pour former une mèche doupionnée, puis à lier les fibres entre elles niveau de leurs points mutuels de contact, puis à découper la mèche en tampons de récurage ou autres.

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