Abstract: A POM/POM thermoadhesive conjugate fiber is produced by providing two kinds of POM-based polymers A and B which satisfy 30<MIA wherein MIA is a before-spinning melt index (g/10 min) of the POM-based polymer A (conditions: 190° C., load: 21.18N (2.16 kg)), and TB>TA+10 wherein TA and TB are before-spinning fusion peak temperatures of the POM-based polymers A and B respectively, compositely spinning a first component containing the POM-based polymer A and a second component containing the POM-based polymer B such that the first component is exposed with an exposed length of not less than 20% relative to a peripheral length of the fiber, subjecting the spun fiber to a drawing treatment, and subjecting the drawn fiber to an annealing treatment at a temperature of from 60° C. to 110° C.

Abstract: The present invention provides for a color stable antimicrobial coatings and coating systems comprising a silver ion-exchange type antimicrobial agent. In particular, coatings and coating systems having little, if any, discoloration are provided with no loss of antimicrobial efficacy.

Abstract: A splittable conjugate fiber comprising a polyester segment and a polyolefin segment, wherein the splittable conjugate fiber comprises two or more parts of the polyester segment extending from a center of the fiber toward an outer edge of the fiber in a cross-sectional configuration perpendicular to its longitudinal direction, in which at least one of the two or more parts of the polyester segment extending from the center of the fiber toward the outer edge of the fiber is exposed at the outer edge of the fiber and at least one of the two or more parts of the polyester segment extending from the center of the fiber toward the outer edge of the fiber is unexposed at the outer edge of the fiber.

Abstract: A mop yarn formed with a core of microdenier synthetic filament fibers wrapped with a sheath. The sheath generally includes carded staple fibers spun around the core.

Abstract: Method for producing multilobal bicomponent fiber or filaments comprising spinning at least two polymer components by bicomponent spinning system through round capillary to obtain fibers or filaments and treating fibers or filaments with hot alkali to obtain multilobal bicomponent fibers or filaments. Alternatively fabric is produced from the bicomponent fibers or filaments and treated it with hot alkali to obtain fabric comprising multilobal bicomponent fibers or filaments uniformly distributed in the matrix. The wicking property of multilobal bicomponent fibers or filaments or fabric comprising the same improved with respect to standard polyester of equivalent denier.

Abstract: A synthetic fiber including core and sheath is provided. The sheath covers the core and includes a plurality of segment portions and a plurality of sacrificial portions. The plurality of sacrificial portions are connected to the plurality of segment portions, where the plurality of segment portions and the plurality of sacrificial portions are arranged alternately to each other on an outer surface of the core, and the material of the plurality of segment portions is different with that of the plurality of sacrificial portions.

Abstract: A fabric formed of a monofilament for screen mesh cloth of such that, after wet heat treatment, the inclination change B/A thereof is from 0.6 to less than 1.0 (in which A indicates the inclination of the elongation-stress curve just before the primary yield point thereof and B indicates the inclination of the elongation-stress curve just after the primary yield point), is processed with boiling water and then heat-set while stretched by from 0.2 to 5% both in the warp direction and in the weft direction, and thereafter further stretched by from 0.3 to 5% and fixed, thereby giving a high-mesh and high-modulus screen mesh cloth excellent in the weaving process stability and in the stability and the continuous printability as screen mesh cloth.

Abstract: The disclosure provides a composition as well as a set of compositions and method for producing cellular or foamed or blown fluoropolymers such as perfluoropolymers and other thermoplastics articles allowing for the creation of a lower cost communications cable, conductor separator, conductor support-separator, jacketing, tape, wire insulation and in some cases a conduit tube as individual components or combined configurations that exhibit improved electrical, flammability and optical properties. Specifically, the foamable or blown fluoropolymer such as a perfluoropolymer cellular insulation composition comprises; talc and the selected fluoropolymer such as perfluoropolymers. Compounded pellets or products resulting in cellular or foamable products using these pellets has also been realized by providing the melt combination in the pellets of only talc and a perfluoropolymer.

Abstract: The present invention relates to soft touch fibers and nonwoven fabrics made from such fibers. The fibers comprise an incompatible polymer system which leads to the soft touch quality. The fibers comprise a mixture of at least two thermoplastic polymers each having different viscosities and wherein the mixture has an interfacial tension from about 0.5 to about 20 mN/m, and wherein the mixture comprises a portion of the fiber surface. The fibers may include from 40-98 percent of a polyolefin continuous phase and from 2 to 60 weight percent of an amorphous thermoplast dispersed phase, such as polystyrene or polyamide.

Abstract: The invention relates to a fixing thread 1, 5, 10, 16 for sewing together reinforcing fibers, in particular to form a fiber preform, for the production of a fiber-reinforced composite component by means of impregnation with a curable polymer material. According to the invention, the fixing thread 1, 5, 10, 16 has an interface 4, 9, 15, 19 for locally increasing the ductility of a matrix formed by the curable polymer material and has at least one core thread 2, 6, 11, 12, 17, so as in particular to reduce the tendency for microcracks to form in the matrix of the finished composite component in the regions where the fixing threads 1, 5, 10, 16 penetrate. The interface 4 may be formed, for example, by an enclosure of the core thread 1 by a thermoplastic polymer material, for example by polyethylene, polypropylene or the like.

Abstract: A thermal bonding conjugate fiber constituted from a first component comprising a polyester resin and a second component comprising a polyolefin resin with a melting point lower than that of the polyester resin by not less than 20° C., characterized in that a post-heat treatment bulk retention rate thereof is 20% or more when calculated by the following measurement method: Bulk retention rate=(H1 (mm)2/H0 (mm))×100 (%) (wherein H0 is the web height when a 0.1 g/cm2 load is applied to a web with a mass per unit area of 200 g/m2; and H1 is the web height after a heat treatment for 5 min at 145° C. when a 0.1 g/cm2 load is applied to that web).

Abstract: Fibers having improved resistance to moisture at elevated temperatures comprise at least two elastic polymers, one polymer heat-settable and the other polymer heat-resistant, the heat-resistant polymer comprising at least a portion of the exterior surface of the fiber. The fibers typically have a bicomponent and/or a biconstituent core/sheath morphology. Typically, the core comprises an elastic thermoplastic urethane, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer.

Abstract: The instant invention generally provides polymer inorganic-particulate composite fiber comprising a molecularly self-assembling material and an inorganic-particulate, and a process of making and an article comprising the polymer inorganic-particulate composite fiber.

Abstract: A splittable conjugate fiber for obtaining a fiber structure excellent in denseness and bulkiness includes a polyamide resin composition and a fiber-forming polymer not having an affinity with the polyamide resin composition. The polyamide resin composition and the fiber-forming polymer are combined with each other in a fiber longitudinal direction. The polyamide resin composition contains aromatic polyamide and aliphatic polyamide. Preferably, the aromatic polyamide is a nylon MXD6 polymer, and the aliphatic polyamide is a nylon 6 polymer.

Abstract: A halogen-free flame retardant plastic composition, for coating a substrate, comprising an acrylic resin and an intumescent agent. It is in the form of plastisol, and comprises therefore a plasticizing medium wherein the acrylic resin and the intumescent agent are dispersed, said plastisol being formulated such that, in combination: the viscosity remains not more than 6000 mPa's, measured with a Brookfiled RVT viscometer at 20 revolutions per minute, its rheological behaviour is pseudo-plastic and Newtonian.

Abstract: A fabricated microstructure includes a substrate, a primary fiber, and a plurality of base fibers. The primary fiber has a width less than about 5 microns. Each base fiber of the plurality of base fibers has a first end attached to the primary fiber and a second end attached to the substrate. Each base fiber has a width less than the width of the primary fiber.

Abstract: A slat for use in a covering for an architectural opening is made from a base material of binder and matrix fibers which are formed into a nonwoven material by melting at least a portion of the binder fibers to thermally bond the binder and matrix fibers. A coating of resin is then applied to the thermally bonded base before the composite material is passed through a forming apparatus where the material is heated over a convex support having the desired curvature for the slat and subsequently cooled.

Abstract: Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues, and wherein said poly(ethylene) terephthalate has an inherent viscosity of less than 0.55 dL/g. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.

Abstract: The present invention relates to novel methods and compositions for detection and isolation of cancer cells with metastatic potential. The invention further relates to assays for measuring the metastatic potential of such cancer cells and drug screening assays for the identification of agents having anti-metastatic potential. The present invention further provides methods and compositions for inhibiting the metastatic potential of cancer cells by modulating the activity of serine integral membrane proteases [(SIMP) consisting of seprase and dipetidyl peptidase IV (DPPIV)] expressed on the surface of metastasizing cancer cells.

Abstract: Taggant fibers and methods of use provide for enhanced protection and security when the fibers are used in documents such as land titles, currency, passports and other documents of value. The taggant fibers consist of a minimum of two separate zones with each zone containing a different taggant to emit different wave lengths when excited. The taggants may consist of organic or inorganic compounds as are conventionally known and can be manufactured using for example polymeric materials which can be extruded during the fiber manufacturing process. A first zone may comprise a fiber sheath which includes a taggant and a second or inner zone or core which may be formed into a company logo having letters with different or the same taggants. Authentication of the fibers or documents containing such fibers can be readily viewed using conventional techniques.

Abstract: A major object of the invention is to provide a thermoadhesive conjugate fiber with low heat shrinkability and high adhesion having low orientation and high elongation and having extremely satisfactory card-passing properties. The object of the invention can be achieved by a thermoadhesive conjugate fiber made of a fiber forming resin component and a crystalline thermoplastic resin having a melting point of at least 20° C. lower than that of the fiber forming resin component and having a breaking elongation of from 60 to 600%, a dry heat shrinkage percentage at 120° C. of from ?10.0 to 5.0%, and more preferably a percentage of crimp/number of crimps of 0.8 or more; and a manufacturing method of a thermoadhesive conjugate fiber, which includes drawing an undrawn yarn of a conjugate fiber taken up at a spinning rate of from 150 to 1,800 m/min in a low draw ratio of from 0.5 to 1.

Abstract: A latently crimpable conjugate fiber is constructed using a first component containing an ethylene-?-olefin copolymer polymerized with a metallocene catalyst and a second component formed from a thermal plastic polymer having a melting point T2 higher than a melting point T1 of the first component, such that the first component is exposed with an exposed length of at least 20% relative to a peripheral length of the fiber, and which fiber has a single fiber dry heat shrinkage percentage of at least 50%, which is determined according to JIS-L-1015 (dry heat shrinkage percentage) at 100° C. under an initial tension of 0.018mn/dtex (2mg/d) for 15 minutes and a single fiber dry heat shrinkage percentage of at least 15%, which is determined under the same condition under an initial tension of 0.450mN/dtex (50mg/dtex) for 15 minutes. The latently crimpable conjugate fiber develops crimps and has thermal adhesiveness at a low temperature.

Abstract: A splittable conjugate fiber that provides a fiber structure with enhanced compactness, bulkiness and color formation has one member consisting of a polyamide resin composition containing an aromatic polyamide and an aliphatic polyamide and has another member consisting of a fiber forming polymer with no affinity to the polyamide resin composition. Preferably, the aromatic polyamide is a polyamide whose major structural units are composed of an aliphatic dicarboxylic acid and an aromatic diamine. In further preferred modes, the polyamide resin composition consists of nylon-MXD6 and nylon-6, the weight ratio therebetween ranging from 35:65 to 70:30, and the fiber forming polymer is a polyester or polyolefin.

Abstract: Bicomponent fibers, methods of forming bicomponent fibers and articles formed from bicomponent fibers are described herein. Tile bicomponent fibers generally include a sheath component and a core component, wherein the sheath component consists essentially of a first metallocene polypropylene and the core component consists essentially of a second metallocene polypropylene.

Abstract: The invention provides a novel conjugated fiber which is excellent in productivity and which has excellent moisture absorption, antistatic property and cool touch feeling, namely, a conjugated fiber which is composed of a sheath made from a fiber-forming resin such as polyamide or polyester and a core made from a polyether block amide copolymer at a core/sheath area ratio of 5/95 to 95/5 and which has an exposure angle of the core to the surface of 5 to 90 DEG. It is still preferable that the core/sheath area ratio be 10/90 to 90/10 and the exposure angle of the core to the surface be 5 to 80 DEG with a percentage of crimp of 2 to 30%.

Abstract: Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof are described. In one embodiment, a multi-component fiber includes a fiber body formed from a set of elongated members, and at least one of the set of elongated members includes a temperature regulating material having a latent heat of at least 40 J/g and a transition temperature in the range of 22° C. to 40° C. The temperature regulating material provides thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature. The multi-component fiber can be formed via a melt spinning process or a solution spinning process and can be used or incorporated in various products where a thermal regulating property is desired. For example, the multi-component fiber can be used in textiles, apparel, footwear, medical products, containers and packagings, buildings, appliances, and other products.

Abstract: The present invention provides a nanoporous fiber being substantially free from coarse pores and having homogeneously dispersed nanopores, unlike conventional porous fibers. A porous fiber has pores each having a diameter of 100 nm or less, in which the area ratio of pores each having a diameter of 200 nm or more to the total cross section of the fiber is 1.5% or less, and the pores are unconnected pores, or a porous fiber has pores each having a diameter of 100 nm or less, in which the area ratio of pores each having a diameter of 200 nm or more to the total cross section of the fiber is 1.5% or less, the pores are connected pores, and the fiber has a strength of 1.0 cN/dtex or more.

Abstract: This invention relates to poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) biconstituent filaments, methods for making the same and end uses thereof.

Abstract: Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof are described. In one embodiment, a multi-component fiber includes a fiber body formed from a set of elongated members, and at least one of the set of elongated members includes a temperature regulating material having a latent heat of at least 40 J/g and a transition temperature in the range of 22° C. to 40° C. The temperature regulating material provides thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature. The multi-component fiber can be formed via a melt spinning process or a solution spinning process and can be used or incorporated in various products where a thermal regulating property is desired. For example, the multi-component fiber can be used in textiles, apparel, footwear, medical products, containers and packagings, buildings, appliances, and other products.

Abstract: Monofilamentous string suited for use in tennis rackets and the like, consisting of a core material and a covering material that serves as a matrix, in which the core material is embedded in the covering material in accordance with the ‘island in the sea structure’ and that therefore contains island components and a sea component, therefore characterised in that the island components largely but not exclusively consist of a thermoplastic plastic, that they are arranged in a geometrical and preferably symmetrical pattern relative to each other and/or the longitudinal axis of the string, that at least three of these island components have a cross-section that has a multi-angular shape and with one side leaning close against the surface of the string, and that this side displays a curvature that closely lines the curve of this surface, and that the sea component largely but not exclusively consists of a thermoplastic elastomer.

Abstract: The present invention relates to a method for producing a synthetic fiber for use in an artificial grass sports field, including the steps of supplying a layer of synthetic material; and obtaining the synthetic fiber from the layer of synthetic material, wherein the layer of synthetic material comprises at least two layers of different synthetic materials, using a co-extrusion process. The invention also relates to such a synthetic fiber and to an artificial lawn suitable for sports fields, including a substrate to which synthetic fibers according to the invention have been attached.

Abstract: The invention concerns a halogen-free flame retardant plastic composition, for coating a substrate, comprising an acrylic resin and an intumescent agent. It is in the form of plastisol, and comprises therefore a plasticizing medium wherein the acrylic resin and the intumescent agent are dispersed, said plastisol being formulated such that, in combination: the viscosity remains not more than 6000 mPa's, measured with a Brookfield RVT viscometer at 20 revolutions per minute, its rheological behavior is pseudo-plastic and Newtonian.

Abstract: The islands-in-sea type composite fiber of the present invention comprises a sea part containing an easily soluble polymer and 100 or more island parts containing a hardly soluble polymer, per fiber. In a cross-sectional profile of the composite fiber, each of the island parts has a thickness in the range of from 10 to 1,000 nm and the intervals between the island parts adjacent to each other are 500 nm or less. The islands-in-sea type composite fiber is produced by melt spinning the sea part polymer and the island part polymer mentioned above through a spinneret for an islands-in-sea type composite fiber and taking up the spun fiber at a speed of 400 to 6,000 m/min. Dissolution and removal of the sea part polymer from the composite fiber gives a group of fine fibers having a thickness of 10 to 1,000 rim and useful for clothing, industrial materials and other applications.

Abstract: Multicomponent fiber and fabrics made therefrom are provided, wherein the multicomponent fibers may incorporate one or more elastomers or additive-containing polymers in a bicomponent core. The fiber includes a multilobal sheath fiber component surrounding the bicomponent core, wherein the components are sized such that the fiber can be fibrillated to expose the core fiber components and split the fiber into multiple microdenier fibers.

Abstract: The present invention provides polypropylene blends for use in the production of fibers and fabrics. The polypropylene blends according to the current invention comprise from about 85 to about 95 percent by weight of a propylene homopolymer and from about 5 to about 15 percent by weight of an ethylene/propylene random copolymer having an ethylene content of about 7 percent by weight or less. The overall ethylene content of the blends according to the present invention is about 1 percent by weight or less. Polypropylene blends according to the current invention provide lower bonding temperatures and wider bonding windows without the increased smoke generation associated with high solubles homopolymers.

Abstract: A composite tubing includes: an outer tubing which is prepared by seaming along a lengthwise direction two lateral sides of a lengthwise-extending strip made from a deformable material, the lateral sides being disposed opposite to each other in a transverse direction relative to the lengthwise direction, and being superimposed on each other so as to form a tubular body and a seamed ridge, the tubular body including a force-bearing-side half and a ridge-side half cooperating with each other to define a compressible tubular chamber, the seamed ridge extending from the ridge-side half radially and lengthwise; and a fiber-based rope disposed to extend lengthwise in the compressible tubular chamber, and being of a dimension such that, when the force-bearing-side half is pressed and deformed, the fiber-based rope is shiftable against the ridge-side half so as to vest the tubular body with an increased strength while preserving the padding effect of the force-bearing-side half.

Abstract: A filament type nano-sized lone fiber and a method of producing the same are disclosed. In the method, a spinning solution or a spinning melt is electro-spun in drops using a spinneret to which a critical voltage is applied, and the spun drops are continuously collected on a multi-collector. The spinning solution is produced dissolving a blend or copolymer consisting of two or more kinds of polymers in a solvent. The spinning melt is produced by melting the polymers. The multi-collector is selected from the group consisting of a plate type collector, a roll type collector, and a combination thereof. The filament type nano-sized long fiber is processed into a yarn through one step during the electrospinning process, and thus, mechanical properties are better than those of conventional nanofiber non-woven fabric. Consequently, the filament type nano-sized long fiber can be utilized for the extended application.

Abstract: The invention concerns a bristle for a brush, in particular a cleaning brush, a toothbrush or an application brush, wherein the bristle has a lower root region with which it can be mounted in or to a bristle support or which forms part of the bristle support, and a free length disposed outside of the bristle support above the root region which is composed of a shaft region bordering the root region and a flexing region disposed thereabove, wherein the shaft region is composed of a lower shaft base section bordering the root region and a shaft section disposed thereabove, and wherein the flexing region is composed of a lower active and flexing section bordering the shaft region and a tip section which is disposed thereabove and forms the free end of the bristle, wherein the bristle has a continuous depression-free jacket in the shaft base section and, at least in sections of the jacket in the flexing region, a profiling which is formed by elevations and/or depressions and which lies in an outer surface of the

Abstract: A multicomponent superabsorbent fibre includes a first superabsorbent material and a second superabsorbent material. In at least a part of the length direction (L) of the superabsorbent fibre, the first superabsorbent material and the second superabsorbent material are located side-by-side in the cross-direction (C) of the superabsorbent fibre. The first and second superabsorbent materials are selected such that at a given point during their swelling, the swelling capacity (SC) of the first superabsorbent material is greater than the swelling capacity of the second superabsorbent material so that the superabsorbent fibre (10) curls upon contact with liquid. Also, a method for reducing gel-blocking in a superabsorbent fibre.

Abstract: [PROBLEMS] To provide a polyester monofilament which shows a high dimensional stability and excellent effects of preventing peel-off in filaments, preventing pirn barre and preventing halation and has a high fineness, a high strength and a high modulus. [MEANS FOR SOLVING PROBLEMS] A core-shell type composite polyester monofilament comprising polyethylene terephthalate at a ratio of 80% by mol or higher, which satisfies the following requirements A to F: A) the intrinsic viscosity of the core component being 0.70 or above and the intrinsic viscosity of the shell component being from 0.55 to 0.60; B) the core component amounting to 50 to 70%; C) at least the shell component containing from 0.2 to 0.4% by weight of metal microparticles; D) the fineness of the monofilament being from 5 to 15 dtex, its modulus at elongation of 5% being from 3 to 4.5 cN/dtex and its elongation at break being from 20 to 40%; E) the free shrinkage of the innermost part under specific conditions being 0.

Abstract: A multi-component article comprising a first component comprising a biodegradable polymer, and a second component comprising a polyolefin and a reactive modifier. A method of preparing a multi-layer film comprising coextruding first and second film layers, wherein the first layer comprises a polylactic acid and the second layer comprises a polyolefin and an epoxy-functionalized polyolefin. A method of preparing a multi-component fiber comprising coextruding a core component and a sheath component, wherein the core component comprises a polyolefin and an epoxy-functionalized polyolefin and the sheath component comprises a polylactic acid.

Abstract: A method of making colored multifilament ultrahigh molecular weight polyolefin yarn, including feeding at least one substantially untwisted multifilament ultrahigh molecular weight polyolefin yarn, coating the substantially untwisted multifilament yarn with a coating composition comprising colorant in a thermoplastic resin carrier, with the coating composition being adhered to the filaments of the multifilament yarn, and heating the multifilament yarn while stretching the yarn without fusing of the filaments of the multifilament yarn. The resultant yarn is a colored multifilament yarn having improved color-fastness. The thermoplastic resin has a lower melting point than the filaments of the multifilament yarn. Preferably, a plurality of the substantially untwisted multifilament ultrahigh molecular weight polyolefin yarns are processed together.

Abstract: The invention provides yarns made of filaments of different average diameters, having excellent cut-resistance.

Abstract: In an electrically conductive sheath-core conjugate fiber including an electrically conductive layer made of a thermoplastic polymer (A) containing electrically conductive carbon black fine particles which constitutes a sheath component and a protective layer made of a fiber-forming thermoplastic polymer (B) which constitutes a core component, the ratio of the (A) to the total weight of the (A) and the (B) is 10 to 35% by weight, the L1/L0 ratio is 1.04 to 10.0 where L1 represents the length of a boundary between the core component and the sheath component in a cross section of the conjugate fiber and L0 represents the length of the circumference of a core component, the fineness, the strength at break and the elongation at break are each adjusted within specified ranges, the shrinkage in hot water at 100° C. is within a specified range, and the fiber surface coverage of the sheath component is 85% or more.

Abstract: The islands-in-sea type composite fiber of the present invention comprises a sea part containing an easily soluble polymer and 100 or more island parts containing a hardly soluble polymer, per fiber. In a cross-sectional profile of the composite fiber, each of the island parts has a thickness in the range of from 10 to 1,000 nm and the intervals between the island parts adjacent to each other are 500 nm or less. The islands-in-sea type composite fiber is produced by melt spinning the sea part polymer and the island part polymer mentioned above through a spinneret for an islands-in-sea type composite fiber and taking up the spun fiber at a speed of 400 to 6,000 m/min. Dissolution and removal of the sea part polymer from the composite fiber gives a group of fine fibers having a thickness of 10 to 1,000 nm and useful for clothing, industrial materials and other applications.

Abstract: A method of manufacturing autohesion thread such that a smooth surface is offered, the cutting thereof is easy, filaments composing thread are not frayed in cutting, drainability is superior, and plural kinds of filaments can be combined. A method of manufacturing a line of fusion thread, wherein plural filaments comprising thermoplastic resin are paralleled, twisted and/or braided if desired, subsequently drawn under heat at a draw ratio of less than 1.0 to thereby substantially fuse the adjacent filaments, and thereafter drawn under heat at a draw ratio of more than 1.0.

Abstract: A modacrylic shrinkable fiber according to the present invention is containing a polymer composition obtained by mixing 50 to 99 parts by weight of a polymer (A) containing 40 wt % to 80 wt % of acrylonitrile, 20 wt % to 60 wt % of a halogen-ontaining monomer and 0 wt % to 5 wt % of a sulfonic-acid-containing monomer, and 1 to 50 parts by weight of a polymer (B) containing 5 wt % to 70 wt % of acrylonitrile, 20 wt % to 94 wt % of an acrylic ester and 1 wt % to 40 wt % of a sulfonic-acid-containing monomer containing a methallylsulfonic acid or metal salts thereof or amine salts thereof, in which a total amount of the polymer (A) and the polymer (B) is 100 parts by weight. In this way, a modacrylic shrinkable fiber that has a favorable color development property after dyeing and a high shrinkage ratio even after dyeing is obtained.

Abstract: A yarn for strands of an artificial turf ground cover, including a tape filament (4) having a core layer (8) and two outer layers (9) of a different material than the core layer (8), each on one of two opposite sides of the core layer. The core layer (8) contains at least polyester or polyolefin material, and the outer layers (9) contain high-density polyethylene. An artificial turf ground cover and a playing field including such a yarn and a method for producing such a yarn are also described. The high-density polyethylene has a relatively small coefficient of friction with the human skin and the yarn has a good shape recovery after deformation in spite of containing HDPE in outer layers.

Abstract: The present invention provides a process for producing a conjugate fiber that is excellent in strength, stretch elasticity, and transparency. The process includes a step (1) in which an elastomer resin (A) having stretching elasticity and an elastomer resin (B) having stretch elasticity, a permanent elongation of 25-70%, and a tensile elongation of 100-800% are separately melted and subjected to conjugate spinning using a conjugate spinneret having two nozzles so that the elastomer resin (A) forms a core and the elastomer resin (B) form a sheath; a step (2) in which the fiber obtained by composite spinning in the step (1) is heat-treated; and a step (3) in which the fiber heat-treated in the step (2) is stretched.

Abstract: A polylactic acid resin suitable for use especially in textile products; textile products obtained from the resin as a raw material (a fiber, multifilament, monofilament, staple, false-twist yarn, long-fiber nonwoven fabric, etc.); and processes for producing these textile products. The polylactic acid resin is a resin consisting mainly of a polylactic acid and is characterized in that it is linear, has an L-isomer content of 95 mol % or higher, an Sn content of 30 ppm or lower, a monomer content of 0.50 wt. % or lower, and has a relative viscosity of 2.7 to 3.9 or has a weight-average molecular weight of 120,000 to 220,000 and a number-average molecular weight of 60,000 to 110,000. Each of the textile products comprises the polylactic acid resin as the main material. The textile products each comprises a polylactic acid that is excellent in processability and excellent fiber properties. The free textile products are problems in practical use.