A machine and a method for producing biodegradable nonwoven textile comprising including seeds including a seed distributing machine unit, positioned in a cross-lapping portion of the nonwoven textile machine. The seed distributing machine unit includes at least one receptacle for seeds having a dispensing opening for regulated outlet of seeds onto a veil of biodegradable fibres. A needle punching portion is situated after the cross-lapping, seen in the direction of the biodegradable nonwoven textile production line of the machine, for needle-punching of the veil of biodegradable fibres.

A machine and a method for producing biodegradable nonwoven textile comprising including seeds including a seed distributing machine unit, positioned in a cross-lapping portion of the nonwoven textile machine. The seed distributing machine unit includes at least one receptacle for seeds having a dispensing opening for regulated outlet of seeds onto a veil of biodegradable fibres. A needle punching portion is situated after the cross-lapping, seen in the direction of the biodegradable nonwoven textile production line of the machine, for needle-punching of the veil of biodegradable fibres.

A continuous fiber brake rotor preform and apparatuses and methods for manufacturing the preform are disclosed herein. The preform comprises a plurality of continuous fiber streams or filaments forming a substantially helical structure having layers or flights compressed together in the preform's longitudinal direction. Each continuous fiber stream or filament may comprise the same or different types of fiber, extends substantially between longitudinally disposed preform ends, and resides laterally adjacent to another continuous fiber stream or filament within each layer or flight of the helical structure. The radial distance between each continuous fiber stream or filament and the preform's longitudinal axis varies with angular location about the longitudinal axis. The preform further comprises web or z-direction fiber interspersed within the helical structure with certain of the web or z-direction fibers and continuous fiber streams or filaments extending at least partially in the longitudinal direction between the preform's layers or flights.

A continuous fiber brake rotor preform and apparatuses and methods for manufacturing the preform are disclosed herein. The preform comprises a plurality of continuous fiber streams or filaments forming a substantially helical structure having layers or flights compressed together in the preform's longitudinal direction. Each continuous fiber stream or filament may comprise the same or different types of fiber, extends substantially between longitudinally disposed preform ends, and resides laterally adjacent to another continuous fiber stream or filament within each layer or flight of the helical structure. The radial distance between each continuous fiber stream or filament and the preform's longitudinal axis varies with angular location about the longitudinal axis. The preform further comprises web or z-direction fiber interspersed within the helical structure with certain of the web or z-direction fibers and continuous fiber streams or filaments extending at least partially in the longitudinal direction between the preform's layers or flights.

Filter media and media packs that provide robust performance in high-speed rotating coalescer (HSRC) elements for crankcase ventilation systems are described. The fiber media is HSRC fiber media. As such, the filter media has a higher resistance to compressibility then traditional coalescer filter media, such as fiber media used in low-speed rotating coalescer arrangements or stationary coalescer arrangements.

Filter media and media packs that provide robust performance in high-speed rotating coalescer (HSRC) elements for crankcase ventilation systems are described. The fiber media is HSRC fiber media. As such, the filter media has a higher resistance to compressibility then traditional coalescer filter media, such as fiber media used in low-speed rotating coalescer arrangements or stationary coalescer arrangements.

The invention relates to an absorbent material on a nonwoven fabric basis, consisting of a fibrous gauze preferably having a longitudinally oriented initial fiber position, which is solidified by mesh formation while obtaining a three-dimensional fiber order. Furthermore, a fiber pile layer having a mainly vertical fiber orientation is formed, wherein the fiber pile layer has largely preponderantly a loop shape in a manner avoiding fiber tear-out. The material is in particular suitable for being used as a paint roller covering or dye-feeding roller, i.e. for applying liquid substances onto surface structures.

Disclosed is a method of manufacturing a sound absorbing material for a vehicle, which may include: (a) preparing a mixed fiber including an amount of about 55 to 75 wt % of microfiber polyethylene terephthalate staple fiber having fineness of about 0.3 to 0.7 denier, an amount of about 20 to 40 wt % of low-melt polyethylene terephthalate staple fiber having a fineness of about 1 to 3 denier and a melting point of about 100 to 110° C., and an amount of about 1 to 20 wt % of hollow staple fiber having a fineness of about 13 to 17 denier and a diameter of about 38 to 43 μm, based on the total weight of the mixed fiber. The method may suitably further comprise (b) forming a plurality of webs comprising the mixed fiber; (c) forming a web layer comprising a plurality of webs; and (d) forming non-woven felt comprising the web layer.

A method of forming a multi-layer needled non-woven article, comprising forming a web of a fiber base layer, an intermediate film and a fiber top layer, wherein the intermediate film is disposed between the fiber base layer and the fiber top layer; needle punching the web with a plurality of needles; and wherein, during needle punching, fibers of the fiber base layer are carried by the needles, extended through perforations in the intermediate film formed by the needles and entangled with fibers of the fiber top layer.

There is described a nonwoven material comprising a multilayered stack, the multilayered stack comprising discrete interconnected layers, each of the layers, which may be the same or different, comprising a composite fibre of from about 80 to 100% w/w leaf or stem fibre and from about 1 to 20% w/w of a polymer, wherein the polymer is fusible at a temperature of about 180° C. or less.

There is also described a novel method of enzyme degumming leaf and/or stem fibres.