A system for preparing a polylactic acid (PLA) spunbond nonwoven fabric is provided. In particular, the system includes a first PLA source configured to provide a stream of molten or semi-molten PLA resin; a spin beam in fluid communication with the first PLA source, the spin beam configured to extrude and draw a plurality of PLA continuous filaments; a collection surface disposed below an outlet of the spin beam onto which the PLA continuous filaments are deposited to form the PLA spunbond nonwoven fabric; a first ionization source positioned and arranged to expose the PLA continuous filaments to ions; and a calender positioned downstream of the first ionization source.

There is provided an apparatus for drawing a fibre, the apparatus comprising, a first outlet for dispensing a volume of a first polyionic polymer solution; and a second outlet for dispensing a volume of a second oppositely charged polyionic polymer solution; said second outlet disposed adjacent to the first outlet such that the polymer solutions dispensed therefrom are capable of contacting each other to form a fused droplet comprising a polyelectrolyte complex interface separating the first polyionic and second polyionic polymer solutions; wherein the fused droplet is arranged to move along a fibre drawing path under gravitational force in an opposing direction from the first and second outlets such that nascent fibre is drawn from the polyelectrolyte complex interface. There is also provided a method of drawing the fibre.

There is provided an apparatus for drawing a fibre, the apparatus comprising, a first outlet for dispensing a volume of a first polyionic polymer solution; and a second outlet for dispensing a volume of a second oppositely charged polyionic polymer solution; said second outlet disposed adjacent to the first outlet such that the polymer solutions dispensed therefrom are capable of contacting each other to form a fused droplet comprising a polyelectrolyte complex interface separating the first polyionic and second polyionic polymer solutions; wherein the fused droplet is arranged to move along a fibre drawing path under gravitational force in an opposing direction from the first and second outlets such that nascent fibre is drawn from the polyelectrolyte complex interface. There is also provided a method of drawing the fibre.

Disclosed herein are carpets whose face fiber comprises a bicomponent fiber comprising one component of poly(ethylene terephthalate) homopolymer or poly(ethylene terephthalate) copolymer and a second component of poly(trimethylene terephthalate) polymer or a blend of poly(trimethylene terephthalate) with poly(ethylene terephthalate) homopolymer or poly(ethylene terephthalate) copolymer, wherein the bicomponent fiber is self-bulking due to differential shrinkage. Also disclosed is an improved process for making a yarn to produce a carpet whose face fiber comprises a self-bulking bicomponent fiber comprising one component of poly(ethylene terephthalate) homopolymer or poly(ethylene terephthalate) copolymer and a second component of poly(trimethylene terephthalate) or a blend of poly(trimethylene terephthalate) with poly(ethylene terephthalate) homopolymer or poly(ethylene terephthalate) copolymer.

Disclosed herein are carpets whose face fiber comprises a bicomponent fiber comprising one component of poly(ethylene terephthalate) homopolymer or poly(ethylene terephthalate) copolymer and a second component of poly(trimethylene terephthalate) polymer or a blend of poly(trimethylene terephthalate) with poly(ethylene terephthalate) homopolymer or poly(ethylene terephthalate) copolymer, wherein the bicomponent fiber is self-bulking due to differential shrinkage. Also disclosed is an improved process for making a yarn to produce a carpet whose face fiber comprises a self-bulking bicomponent fiber comprising one component of poly(ethylene terephthalate) homopolymer or poly(ethylene terephthalate) copolymer and a second component of poly(trimethylene terephthalate) or a blend of poly(trimethylene terephthalate) with poly(ethylene terephthalate) homopolymer or poly(ethylene terephthalate) copolymer.

A polyolefin composition for preparing fibers, made from or containing: A) 60-95% by weight of a propylene homo- or copolymer; and B) 5-40% by weight of a copolymer of butene-1 or a butene-1 polymer composition having: a Melt Flow Rate value of from 5 to 100 g/10 min., measured according to ISO 1133 at 190° C. with a load of 2.16 kg; a copolymerized comonomer content from 4% to 15% by mole, referred to the total weight of B); a Mw/Mn value equal to or lower than 4; and flexural modulus of 80 MPa or higher.

A method of creating a soft and lofty continuous fiber nonwoven web is provided. The method includes providing a first molten polymer and a second, different molten polymer to a spinneret defining a plurality of orifices and flowing a fluid intermediate the spinneret and a moving porous member. The method includes using the fluid to draw the first and second molten polymer components, in a direction toward the moving porous member, through at least some of the plurality of orifices to form a plurality of individual continuous fiber strands. The method includes depositing the continuous fiber strands onto the moving porous member at a first location to produce an intermediate continuous fiber nonwoven web, and intermittently varying a vacuum force applied to the moving porous member and to the intermediate web downstream of the first location and without the addition of more continuous fibers and without any heat applied.

Disclosed is an artificial leather base material including: a non-woven fabric that is an entangle body of fibers (A) and fibers (B); and an elastic polymer applied inside the non-woven fabric, wherein the fibers (A) are crimped fibers that are formed from two types of resins with intrinsic viscosities different from each other, and that are filaments of 0.6 dtex or more, and the fibers (B) are ultrafine fibers of less than 0.6 dtex.

The invention relates to a fiber and a textile woven with the fiber, the fiber has two surfaces, a light-reflective layer and a luminescent layer respectively, and thus has light-reflective and luminescent functions. The functional fiber can be woven into a textile, or used as a sewing thread or an embroidery thread, so that apparels with the textile, the sewing thread or the embroidery thread have light-reflective and luminescent properties, making the apparels fashionable and capable of providing safety.

Disclosed herein are systems, devices, and method for forming bicomponent or multicomponent nanofibers.