Process for making a monofilament-like product
AssigneeDsm IP Assets B.V.
InventorsCyril David VEILLAT, Christiaan Henri Peter Dirks
Life of this patent
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Abstract
The invention relates to a process for making a monofilament-like product from a precursor containing at least one strand of a spun yarn made from polyolefin staple fibres, comprising the steps of a) exposing the precursor to a temperature within the melting point range of the polyolefin for a time sufficient to at least partly fuse adjacent fibres and b) simultaneously stretching the precursor at a draw ratio of at least 1.0. The invention further relates to a monofilament-like product obtainable by said process showing improved abrasion resistance, and to the use of said monofilament-like product for making various semi-finished and end-use products.
Claims17
Process for making a monofilament-like product comprising the steps of:
- a) exposing a precursor of indefinite length containing at least one strand comprised of a spun yarn of polyolefin staple fibres to a temperature within the melting point range of the polyolefin fibres for a time sufficient to soften the staple fibers without partial melting and allow adjacent staple fibers to at least partly fuse to one another, and
- b) simultaneously with step a) stretching the precursor at a draw ratio of at least 1.0.
Monofilament-like product comprising a spun yarn made from polyolefin staple fibers, wherein adjacent ones of the staple fibers are at least partly fused without being partially melted.
Dependencies are inferred from the claim text.