A method of manufacturing artificial turf includes the steps of: creating a polymer mixture including at least one polymer and a nucleating agent for crystallizing the at least one polymer, extruding the polymer mixture into a monofilament; quenching the monofilament; reheating the monofilament; stretching the reheated monofilament to form the monofilament into an artificial turf fiber, wherein during the stretching the nucleating agent boosts the creation of crystalline portions of the polymer within the monofilament; incorporating the artificial turf fiber into an artificial turf backing, thereby mechanically fixing the monofilaments of the arranged artificial turf fibers in the artificial turf backing.

A method for manufacturing a nylon 66 hollow fiber includes steps as follows. A plurality of nylon 66 particles are provided. A melting step is provided, wherein the nylon 66 particles are melted so as to form a spun liquid. A fiber spitting step is provided, wherein the spun liquid goes through a hollow spinneret plate so as to form hollow nascent fibers. An evacuating step is provided, wherein the hollow nascent fibers are preliminarily solidified so as to form hollow half-solidified fibers. A cooling step is provided, wherein the hollow half-solidified fibers are cooled and solidified so as to form solidified fibers. A collecting and oiling step is provided. A drawing step is provided. A winding step is provided so as to obtain the nylon 66 hollow fiber.

A method for manufacturing a nylon 66 hollow fiber includes steps as follows. A plurality of nylon 66 particles are provided. A melting step is provided, wherein the nylon 66 particles are melted so as to form a spun liquid. A fiber spitting step is provided, wherein the spun liquid goes through a hollow spinneret plate so as to form hollow nascent fibers. An evacuating step is provided, wherein the hollow nascent fibers are preliminarily solidified so as to form hollow half-solidified fibers. A cooling step is provided, wherein the hollow half-solidified fibers are cooled and solidified so as to form solidified fibers. A collecting and oiling step is provided. A drawing step is provided. A winding step is provided so as to obtain the nylon 66 hollow fiber.

Provided is a pneumatic tire in which the performance is to be improved while suppressing an increase in the thickness by using a reinforcing material applicable to such an insert member or the like by which a target reinforcing performance can be attained while suppressing an increase in the thickness. Provided is a pneumatic tire including: a pair of bead portions 11; a pair of side wall portions 12; and a tread portion 13, and including a carcass layer 2 composed of at least one carcass ply extending toroidally between bead cores 1 embedded in the pair of bead portions respectively as a skeleton. A reinforcing layer 4 using a reinforcing material composed of a core/sheath-type composite fiber (C) in which a core portion is made of a high melting point polyolefin-based resin (A) having a melting point of 150 C. or higher and a sheath portion is made of a low melting point polyolefin-based resin (B) having a melting point of 80 C. or higher and lower than 150 C. is provided on at least the outside of the bead core in the tire radial direction.

The present disclosure relates to a compact polymer gel consisting of disentangled ultrahigh molecular weight polyethylene (dis-UHMWPE), at least one nucleator, at least one filler and at least one fluid medium. The present disclosure also provides a process for the preparation of the compact polymeric gel and fibers from the compact polymeric gel of both low and high denier values. The fibers prepared in accordance with the present process have tensile strength ranging from 2.5 to 13 GPa, tensile modulus ranging from 100 to 270 GPa.

A nonwoven web material including fibers formed of a polyolefin and a polyester is disclosed. The fibers may include fine fibers produced by, for example, a meltblowing process. The polyolefin may be polypropylene and the polyester may be polylactic acid. The polylactic acid may be obtained and included by recycling scrap nonwoven material containing a polylactic acid component, hydrolyzing the polylactic acid component to reduce its viscosity, blending the hydrolyzed polylactic acid with a polyolefin resin, and melt-spinning the blended material to form fibers. A related process is disclosed.

Disclosed is a polyethylene yarn capable of providing a user with a soft tactile sensation as well as a cooling feeling or a cooling sensation, and also having improved weavability that enables the manufacture of a skin cooling fabrics having excellent pilling resistance, abrasion resistance, cuttability, and sewability, a method for manufacturing the same, and a skin cooling fabric including the same. In a strength-elongation curve of the polyethylene yarn obtained by measuring at ambient temperature, (i) elongation at strength of 1 g/d is 0.5 to 3%, (ii) elongation at strength of 3 g/d is 5.5 to 10%, and (iii) a difference between elongation at strength of 4 g/d and elongation at maximum strength is 5.5 to 25%, and the polyethylene yarn has toughness of 55 to 120 J/m.sup.3 at ambient temperature.

Disclosed is a polyethylene yarn capable of providing a user with a soft tactile sensation as well as a cooling feeling or a cooling sensation, and also having improved weavability that enables the manufacture of a skin cooling fabrics having excellent pilling resistance, abrasion resistance, cuttability, and sewability, a method for manufacturing the same, and a skin cooling fabric including the same. In a strength-elongation curve of the polyethylene yarn obtained by measuring at ambient temperature, (i) elongation at strength of 1 g/d is 0.5 to 3%, (ii) elongation at strength of 3 g/d is 5.5 to 10%, and (iii) a difference between elongation at strength of 4 g/d and elongation at maximum strength is 5.5 to 25%, and the polyethylene yarn has toughness of 55 to 120 J/m.sup.3 at ambient temperature.

The present invention discloses a Textilene mesh fabric and its application, which comprises warp yarns and weft yarns interwoven; the warp yarns comprise the first warp yarns and the second warp yarns, and the weft yarns comprise the first weft yarns and the second weft yarns; the first warp yarns and the first weft yarns are PVC threads, and the second warp yarns and the second weft yarns are polyester synthetic fibers. The present invention uses the polyester synthetic fiber to replace the traditional polyester yarn, and mixes with PVC thread prepared by the thread production mechanism to weave the Textilene mesh fabric that has an elongation ratio of more than 30% under high-temperature softening.

A composite fiber is described that is capable of forming various fiber cross section shapes with high accuracy and maintaining high dimensional stability of a cross section shape. Also provided is a method for producing the composite fiber, the method comprising: distributing a sea-component polymer and at least one other-component polymer different from the sea-component polymer; discharging the sea-component polymer and the other-component polymer distributed by the distribution plate respectively from sea-component discharge holes and other-component discharge holes of a discharge plate positioned at a downstream side of the distribution plate with respect to a polymer spinning path direction; and discharging the composite polymer from a discharge hole of a spinneret discharge plate positioned at a downstream side of the discharge plate with respect to the polymer spinning path direction.