The invention relates to a tufting unit for a tufting machine, wherein a yarn transport gripper positions yarn strands which after cutting thereof are used by insertion elements. Furthermore, the invention relates to a tufting unit having such a tufting machine.

A playing surface assembly that defines at least a portion of a playing surface. The playing surface assembly has a backing, a plurality of reinforcement elements secured to and extending upwardly from the backing, and an infill material defining a top surface of the playing surface assembly. Each reinforcement element has a top end and a reveal distance corresponding to a vertical spacing between the top surface of the playing surface assembly and the top end of the reinforcement element. The reveal distance of each reinforcement element is less than 0.5 inches. In use, the reinforcement elements restrict lateral and vertical migration of the infill material, and the infill material is the primary source of performance characteristics of the playing surface assembly.

A polyethylene composition for preparing filaments and fibers, made from or containing: A) from 65% to 97% by weight of a copolymer of ethylene having: 1) a density of 0.925 g/cm.sup.3 or higher; and 2) a MI.sub.2 value of 0.5 g/10 min. or greater; and B) from 3% to 35% by weight of a polyolefin composition made from or containing: B.sup.I) from 5% to 35% by weight of a propylene homopolymer; B.sup.II) from 20% to 50% by weight of an ethylene homopolymer or a copolymer of ethylene with up to 5% by weight of alpha-olefin comonomers, containing 5% by weight or less of a fraction soluble in xylene at 25? C.; and B.sup.III) from 30% to 60% by weight of a terpolymer of ethylene, propylene, and 1-butene containing from 30% to 85% by weight of a fraction soluble in xylene at 25? C.

An artificial turf surface includes an artificial turf carpet with a pile, wherein the artificial turf carpet includes a backing. The artificial turf carpet further includes artificial grass fibers. The artificial grass fibers are tufted into the backing. The artificial grass fibers form the pile. The artificial grass fibers are secured to the backing. The artificial turf surface further includes an artificial turf infill distributed within the pile, wherein the artificial turf infill includes irregularly shaped grains, wherein the grains include an agglomerate including at least one type of non-elastomeric thermoplastic. At least a portion of the grains have fibrous extensions.

Artificial turf (100) comprising a. a backing (200) having an upper and a lower surface; and b. a plurality of first synthetic grass fibers (300) attached to and extending upward from the upper surface of said backing; and c. a plurality of second synthetic grass fibers (400) attached to and extending upward from the upper surface of said backing; wherein the height of the first synthetic grass fibers is higher than the height of the second synthetic grass fibers.

The invention comprises a method. The method comprises applying to a primary backing and loop backs of a tufted synthetic turf a plurality of solid polymer particles having a particle size less than or equal to 1,000 microns such that a layer of solid polymer particles is formed across the width and length of the primary backing, wherein the polymer particles are applied to the primary backing at a rate of approximately 5 to approximately 18 ounces of polymer per square yard and wherein the solid polymer particles are thermoplastic polymer particles or a mixture of thermoplastic polymer particles and thermosetting polymer particles. The method also comprises heating the polymer particles on the primary backing and loop backs to a temperature at or above the melting temperature of the polymer particles and allowing the heated polymer particles to cool below their melting temperature wherein the tufted synthetic turf has bundle lock of at least 6.8 pounds and the tufted synthetic turf has a water permeability of at least 10 inches of water per hour.

A method for manufacturing an artificial turf fiber includes creating a polymer mixture that includes, 60-99% by weight of an LLDPE polymer and 1-15% by weight of an LDPE polymer. The method further includes extruding the polymer mixture into a monofilament; quenching the monofilament; reheating the monofilament; and stretching the reheated monofilament to form the monofilament into the artificial turf fiber.

Implementations herein describe an artificial turf having a backing layer and a plurality of rows of individual tufts tufted into the backing layer. Each tuft comprises at least three yarns per tuft and each one of the at least three yarns varies in at least one of material, color, texture, denier and cross-section. Each row of individual tufts is substantially similar to each adjacent tufted row and adjacent tufts on a given row are spaced apart at a predetermined gauge.

A method of manufacturing an artificial turf includes creating fluid polyurethane mass. The creation including reacting first and second polyols with an isocyanate. The first polyol is a polyether polyol and/or a polyester polyol having at least 2 hydroxyl groups per molecule, the second polyol being polybutadien diol. The isocyanate including isocyanate monomers, isocyanate polymers or isocyanate prepolymers or a mixture thereof, the isocyanate monomers, isocyanate polymers and the isocyanate prepolymers having two or more isocyanate groups per molecule. The method further includes incorporating an artificial turf fiber into a carrier such that a first portion of the fiber protrudes to the front side of the carrier and that a second portion of the fiber is located at the back side of the carrier, adding the fluid polyurethane mass on the back side of the carrier, and hardening the fluid polyurethane mass.

An artificial turf constructed on a floor of a sports stadium and used as a substitute for natural turf, specifically, an antibacterial artificial turf pile yarn includes 80 to 90% by weight of polyolefin resin, 3 to 10% by weight of a silicon-based compound, and 3 to 10% by weight of an antibacterial powder, wherein the antibacterial powder is copper sulfide powder, and the antibacterial artificial turf pile yarn is coated to have a cooling function, and wherein a PCM (phase change material) powder is mixed with one or more powers of titanium, aluminum, and graphene powders as a cooling material powder and coated on an artificial turf pile yarn with viscosity to have a cooling effect together with an antibacterial effect for inhibiting bacterial growth.