A separation membrane module includes a case and a separation membrane built in the case, wherein the separation membrane module satisfies the following requirements (1) to (3): (1) the separation membrane contains a hydrophobic polymer, a hydrophilic polymer, and a biocompatible copolymer, the hydrophilic polymer containing a hydrophilic polymer having mobility, (2) the separation membrane contains the hydrophilic polymer having mobility in a range of 1.0 to 1.7% by mass, and (3) a water content per self-weight of the separation membrane is in a range of 0 to 10% by mass. The separation membrane module is provided in which fouling of a membrane is suppressed and the amount of eluted substance is small.

Systems and methods of fabricating corrugated electrospun fiber assemblies are disclosed herein. The method can include placing an electrospun fiber scaffold on a corrugation rod, wherein the corrugation rod comprises a helical structure; applying a monofilament fiber about the electrospun fiber scaffold and the corrugation rod from a dispenser as the dispenser is translated longitudinally and the corrugation rod is rotated such that the monofilament fiber is wrapped about the electrospun fiber scaffold at a defined threads per inch (TPI) to form a wrapped electrospun fiber assembly; and longitudinally compressing the corrugated electrospun fiber assembly until it has been compressed from a first length to a second length to form the corrugated electrospun fiber assembly. The corrugated electrospun fiber assemblies can be kink-resistant as compared to conventional electrospun fiber scaffolds. The corrugated electrospun fiber assemblies can be used in, for example, biological applications within a subject.

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.

The present invention relates to an artificial turf. In the present invention, nylon is used as the main material. Through selecting straight fibers and curve fibers with certain cross-sectional shapes, lengths and widths and using the straight fiber and curve fiber together, the obtained grass fibers not only have relatively good temperature resistance, but also good handfeel, wear resistance, anti-aging performance, grass fiber resilience, trampling resistance and grass uprightness.

The present invention relates to an artificial turf. In the present invention, nylon is used as the main material. Through selecting straight fibers and curve fibers with certain cross-sectional shapes, lengths and widths and using the straight fiber and curve fiber together, the obtained grass fibers not only have relatively good temperature resistance, but also good handfeel, wear resistance, anti-aging performance, grass fiber resilience, trampling resistance and grass uprightness.

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.

Techniques are directed to melt spinning, drawing, crimping and winding multiple threads. The threads are spun from a plurality of spinnerets of a spinning device and are drawn as a thread group by a drawing device and are subsequently fed for crimping next to one another to a plurality of texturing units. In order to obtain identical treatment of all threads within the thread group, the threads are guided individually with a plurality of wraps next to one another on a godet unit and, after running off from the godet unit, are guided in a straight thread run parallel next to one another into the texturing units. To this end, adjacent texturing units of the crimping device form a treatment spacing between themselves which is such that, in the case of being guided individually with a plurality of wraps on the godet unit, the threads can be guided in parallel in a straight thread run.

Techniques are directed to melt spinning, drawing, crimping and winding multiple threads. The threads are spun from a plurality of spinnerets of a spinning device and are drawn as a thread group by a drawing device and are subsequently fed for crimping next to one another to a plurality of texturing units. In order to obtain identical treatment of all threads within the thread group, the threads are guided individually with a plurality of wraps next to one another on a godet unit and, after running off from the godet unit, are guided in a straight thread run parallel next to one another into the texturing units. To this end, adjacent texturing units of the crimping device form a treatment spacing between themselves which is such that, in the case of being guided individually with a plurality of wraps on the godet unit, the threads can be guided in parallel in a straight thread run.

A method for producing a textile product (I), (II), comprising at least two synthetic pile threads (P1), (P2) having a different pile height, so that a predetermined design is formed, in which the synthetic pile yarns (P1), (P2) are manufactured by extrusion from the same raw material, according to production processes which only differ from each other by a different setting of one or several process parameters of their respective extrusion processes, so that they have a different shrinking capability, and in which the textile product (I), (II) is subjected to a heat treatment which causes the pile yarns (P1), (P2) to shrink differently. Also such a method for producing synthetic textile yarns (P1), (P2) having a different shrinking capability.

The invention relates to a spunbonded nonwoven having crimped multicomponent fibers, wherein a first component of the multicomponent fibers consists of a first thermoplastic polymer material comprising a first thermoplastic base polymer and a second component of the multicomponent fibers consists of a second thermoplastic polymer material comprising a second thermoplastic base polymer that is different from the first base polymer. The at least one of the first polymer material or the second polymer material is a polymer blend that comprises, further to the respective base polymer, between 1 and 10 weight percent of a high melt flow rate polymer that has a melt flow rate of between 600 and 3,000 g/10 min. The fibers have a linear mass density of less than 1.5 denier. The average crimp number of the crimped multicomponent fibers is in the range of at least 5 and preferably at least 8 crimps per cm in the fiber. The invention further relates to a method for making such spunbonded nonwoven, a multilayer fabric wherein at least one layer comprises such spunbonded nonwoven and a hygiene product comprising such spunbonded nonwoven or multilayer fabric.