CPC D01D 5/0985 (2013.01) [D01F 1/10 (2013.01); D01F 8/06 (2013.01); D04H 3/147 (2013.01); D04H 3/16 (2013.01); D10B 2321/022 (2013.01)] | 4 Claims |
1. A nonwoven spunbonded of filaments, wherein
the filaments are of continuous, thermoplastic multicomponent and spunbond construction having a core/sheath configuration,
the filaments contain at least one lubricant,
the lubricant is present in the core exclusively or in a quantity of at least 98 wt % of lubricant in the filament,
a mass ratio between the core and the sheath being is from 50:50 to 75:25,
the core consists essentially of homopolypropylene,
the sheath consists essentially of a polypropylene copolymer with a molar mass distribution of 3.5 to 5, or a mixture of homopolypropylene and a polypropylene copolymer with a molar mass distribution of 3.5 to 5, and
the proportion of the lubricant with respect to the overall filament corresponds to 250 to 5500 ppm.
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