Abstract: A highly oriented, undrawn, conductive, composite filament is provided, which is white or colorless and has antistatic properties durable over a long period when clothing utilizing the fiber are actually put on and washed. The filament is a sheath-core composite filament comprising a sheath of a fiber-forming thermoplastic polymer (A) and a core of a composition (B) comprising a conductive material which comprises a conductive metal oxide and a thermoplastic polyamide, having a core resistance of not more than 9.times.10.sup.10 .OMEGA./cm.multidot.filament, the composite filament maintaining a critical elongation--an elongation reached in the course of extending a composite filament at which the core resistance exceeds 1.times.10.sup.11 .OMEGA./cm.multidot.filament at a D.C. voltage of 1 kV--of at least 5% and a shrinkage in hot water at 100.degree. C. of not higher than 20%.

Abstract: A composite crimped yarn comprising: at least two kinds of multifilament yarns, one of them being comprised of a crimped conjugate multifilament yarn comprising two kinds of polyester polymers different from each other in the heat shrinkability and positioned as a major component of the inner layer of the composite crimped yarn, the other of them being comprised of a crimped multifilament yarn of a single synthetic polymer and positioned as a major component in the outer layer of the composite crimped yarn. In the above, the length of the crimped multifilament yarn is 5 to 35% larger than that of the crimped conjugate multifilament yarn, part of the crimped multifilament yarn being migrated to the crimped conjugate multifilament yarn disposed in the inner layer and part of the crimped conjugate multifilament yarn being migrated to the crimped multifilament yarn disposed in the outer layer.

Abstract: A method of composite yarn formed of a false twist crimped, heat set elastomeric core yarn intermingled with a false twist crimped, substantially heat set partially drawn, non-elastic yarn. The resulting composite yarn is substantially free of alternating "S" and "Z" twists, as well as voids. The composite yarn of the present invention is formed by increasing the number of turns per inch of the false twist and adjusting the operating conditions of the D/Y ratio, draw ratio of the elastic and non-elastic yarns, disc stacking, heat, and the machine speed to achieve a balanced or stable thread line.

Abstract: Heatset, textured (e.g. stuffer box textured), continuous filament, nylon carpet yarn useful for making textured carpets is disclosed. The yarn is made from nylon 66 copolymer. Textured carpets made from the yarns of the invention have improved aesthetics and/or appearance retention characteristics as compared to textured carpets made from nylon 66 carpet yarns.

Abstract: Incorporating a minor amount of a hydrogen bonding additive such as nylon 6 monomer or 2-methyl-pentamethylene adipamide monomer in a nylon 66 high RV polymer for making nylon 66 POY provides unexpected downstream advantages over homopolymer nylon 66 POY, especially in draw-texturing to make bulky yarns for use in hosiery.

Abstract: An acrylic fiber tow is disclosed which comprises 1) monocomponent filaments of each of two acrylonitrile polymers differing in hydrophilic properties, 2) bicomponent filaments of both of said polymers having one interface between polymers components and 3) bicomponent filaments of both of said polymers having more than one interface between polymer components. This fiber, however, in spite of its composition of numerous filaments of differing structure provides a tow bundle having a desirable level of reversible crimp measured in a manner specific to the type of crimp designated.Also disclosed is a method for wet-spinning the novel fiber using a static mixing unit in conjunction with a spinnerette normally used for wet-spinning monocomponent filaments.

Abstract: A process wherein freshly-spun, undrawn, nonconductive filaments are combined with one or more spin-oriented, conductive filaments having a nonconductive component made from a major portion of nonconductive, fiber-forming polymeric material and a minor amount of polystyrene, the combined fibers being drawn and co-bulked to produce an anti-static yarn. The conductive filaments used in this process have higher elongations to break, and carpets tufted from the yarns of the process show improved anti-static properties.

Abstract: Yarn suitable for use in making cut pile trackless carpet is disclosed. The yarn is composed of two continuous filament singles yarn cabled together with from 3.5 to 5.0 turns per inch (2.54 cm) of twist. Each singles yarn is tangled and contains substantially no twist. The yarn is characterized, in that, each singles yarn comprises, in addition to crimped carpet filaments, filaments having no crimp and a high degree of shrinkage. The yarn develops texture during conventional heatsetting of the yarn without the use of mechanical crimping.

Abstract: This invention relates to a process for combining a low melting binder fiber with a continuous filament base yarn to form a composite yarn having good bulk and a high level of interlace. More particularly, the process involves bulking a continuous filament yarn, combining it with the low-melting binder fiber, interlacing the combined yarn, and then fixing the interlace.

Abstract: A novel yarn is a bundle of multifiliment supply yarns, preferably at least two, with two alternating lengths in a selected ratio. The first length has alternating sections of entangled filaments forming nodes and unentangled, crimped filaments alternating in closely, substantially randomly-variable spaced sequence. The second length has substantially unentangled crimped filaments. The yarn is characterized by substantially uniform, linear denier and the extent of the second length from node to node is greater than the extent from node to node of any of the second sections of the first length. The yarn presents a space-dyed appearance, especially when multicolored supply yarns are employed, combined with varying textural, effects. Fabrics made of such yarns have novel and pleasing aesthetics. Novel apparatus for making the yarn is taught.

Abstract: Disclosed is a level-dyeable mixed false-twisted filament yarn composed of larger denier multifilaments (1) having a denier of 1 to 2.5 and smaller denier multifilaments (2) having a denier of 0.6 or less, which is characterized in that (a) the yarn comprises entangled portions (I) thereof whereat the larger denier filaments and the smaller denier filaments are entangled with one another and opened portions (II) thereof comprising a core composed of the larger denier filaments and a covering composed of the smaller denier filaments, (b) in the coverings of the opened portions, net-like parts thereof are formed by the smaller denier filaments extending obliquely to the longitudinal axis of the yarn and intersecting one another, and scattered therein, (c) the length L.sub.1 of the opened portions is longer than the length L.sub.

Abstract: A flat multifilament yarn having a very soft unique touch is obtained by arranging two or more types of multifilament yarns having different drawings properties in parallel, and applying a false twisting procedure which includes a twist applying and twist releasing operations to the paralleled multifilament yarn at a temperature of 120.degree. C. or less, and subjecting the resultant false twisted composite yarn to a heat treatment at a temperature of 130.degree. C. or more in a subsequent procedure, the resultant high elongation multifilaments derived from the high drawability multifilaments in the multifilament yarn having a crystallinity (density method) of 10% to 30%, a non-crystalline portion orientation of 0.035 to 0.10, a non-crystalline portion density of 1.31 to 1.36 g/cm.sup.3, and a Young's modulus of 200 to 700 kg/mm.sup.2.

Abstract: Disclosed is a worsted yarn-like false-twisted yarn composed of large-denier multifilaments having a thickness of at least 4 de and small-denier multifilaments having a thickness of 0.

Abstract: A process wherein freshly-spun, undrawn, nonconductive filaments are combined with one or more spin-oriented, conductive filaments having a nonconductive component made from a major portion of nonconductive, fiber-forming polymeric material and a minor amount of polystyrene, the combined fibers being drawn and co-bulked to produce an anti-static yarn. The conductive filaments used in this process have higher elongations to break, and carpets tufted from the yarns of the process show improved anti-static properties.

Abstract: A novel pile fabric and method of making the pile fabric which employs a three-ply yarn having one yarn being textured and the other two yarns being non-textured to provide a wool-like appearance to the fabric and eliminate the tendency of such a fabric to finger mark.

Abstract: A novel pile fabric and method of making the pile fabric which employs a three-ply yarn having one yarn being textured and the other two yarns being non-textured to provide a wool-like appearance to the fabric and eliminate the tendency of such a fabric to finger mark.

Abstract: A false twisted bulky synthetic multifilament yarn of a uniform polymer consisting of at least two filament bundles of different filament deniers, with the filaments in each of said bundles having the same denier per filament. The smaller denier per filament is less than 1 dtex, and the total denier of the texturized yarn is in excess of 100 times the finer filament denier. For the production of such a multifilament yarn, the draw ratios of both filament bundles are chosen such that the difference between both draw ratios is smaller than 0.1, and both bundles are drawtexturized simultaneously at a draw ratio corresponding to the draw ratio of the filament bundle having the coarser denier per filament. Preferred end uses of the yarn are water-repellent fabrics, dust proof fabrics, and the conductive component of sports wear.

Abstract: A process for manufacturing a bulky flat yarn comprising: preparing at least two kinds of thermoplastic synthetic undrawn yarns having different natural draw ratios, respectively; simultaneously drawing said prepared yarns at a draw ratio which is equal to or larger than the smallest natural draw ratio of the yarns and which is equal to or smaller than the largest natural draw ratio; and releasing drawing tension in the yarns after they are drawn. The yarns are mixed by means of an interlacing air nozzle before or after they are drawn.

Abstract: The present invention relates to a denier-mixed composite yarn containing 20 weight percent or more coarse filaments whose single filament fineness is 3 deniers or more and 5 weight percent or more fine filaments whose single filament fineness is 1.5 denier or less. Part or all of the coarse filaments are of non-circular cross-section, the stress of the composite yarn at 10% elongation is 2.5 g/d or less, and the composite yarn has a particular distribution of elongation. According to such denier-mixed composite yarn, superior dry feel fullness and softness can be imparted to woven and knit fabrics.

Abstract: Method to produce a spun-like textured yarn comprised of one yarn which is substantially fully oriented and the other yarn is partially oriented. The method involves plying the yarns in the draw zone before being pre-textured. The ply point of the plied yarns is located above the entrance to the heater in the draw zone.

Abstract: Electrically conductive and nonconductive filaments are combined in a quench chimney and then codrawn and cobulked prior to wind-up.

Abstract: Polyester polymer is extruded through converging capillaries at different speeds to merge and form a combined stream. The stream is cooled to form a filament, which is withdrawn at a high speed. A plurality of such filaments are combined into yarn which self-crimps upon heating. In some embodiments, the yarn has a variable denier.

Abstract: A high twist polyester multifilament yarn having a twist of a twist multiplier K within a range between 15,000 and 25,000, made from polyester filaments consisting essentially of a copolymer of two or more monomers selected from the group consisting of ethylene terephthalate, trimethylene terephthalate and tetramethylene terephthalate and/or a blend of two or more polymers of the respective monomers and having a breaking elongation of not more than 60% and a shrinkage in boiling water of not more than 6%. A woven or knitted crepe fabric obtained by employing such a high twist yarn has a desirable pebble configuration.

Abstract: Polyester conjugate crimped yarns prepared by conjugate spinning(1) an A component substantially comprising polybutylene terephthalate and(2) a B component substantially comprising polyethylene terephthalateat a weight ratio of 30:70 to 70:30 in a side-by-side or eccentric sheath-core arrangement, rendered crimpable by false twisting to a degree of crimpability TC.sub.10 of 8% or more when subjected to a boiling water treatment under a load of 10 mg/de. The polyester conjugate crimped yarn can be obtained by subjecting the conjugate yarn to single-heater false twisting under the conditions which satisfy the following relations:TW.gtoreq.24380/.sqroot.De (i)185+50 [.eta.]B.gtoreq.T.gtoreq.150 (ii)whereTW is the number of false twists (T/m);De is the total denier of the yarn after false twisting;T is the temperature in 0.degree. C. of the false twister heater;[.eta.]B is the intrinsic viscosity of the B component.

Abstract: Two molten streams of polyester polymer are extruded at different speeds to intersect below the spinneret. The spinning speed is relatively high, and the resulting filament has shrinkage peaks and valleys along its length. When a number of such filaments are relaxed in a yarn bundle, the yarn spontaneously develops crimp.

Abstract: A twisted combination yarn is disclosed which is made of a first yarn which contracts when it absorbs water, and a second yarn plied with the first yarn which is not substantially changed in length by contact with water. The twisted combination yarn of the invention has a high water absorbing capacity, and contracts and becomes elastic when it absorbs water.

Abstract: A polyester spun-like textured yarn comprising: a core portion; and a wrapper portion continuously and alternately wrapping about the core portion. The core portion comprises a polyester multifilament yarn (A) which is not dyeable with ionic dyes. The wrapper portion comprises polyester multifilament yarns (B) and (C) which are entangled with each other. The yarn (B) is not dyeable with ionic dyes, and the yarn (C) is dyeable with ionic dyes. Some of the filaments constituting the wrapper portion are entangled and interlaced with some of the filaments constituting the core portion in the boundary region between the core and wrapper portions.

Abstract: A textured continuous filament yarn combining a luxuriant, soft hand with improved moisture wicking for greater comfort in garments. Some filaments have a denier which varies at least 25% (preferably 300-500%), and other filaments have a spiral cross-section.

Abstract: A yarn for producing fabrics with a wool-like hand, by combining textured filaments with longer filaments preferably of larger average denier. The longer filaments thus protrude in loops from the yarn bundle.

Abstract: Method to provide a novel air textured yarn by combining a cold drawn core yarn and a false twisted effect yarn in a fluid tangling zone.

Abstract: A yarn for producing fabrics with a wool-like hand, by combining textured filaments with longer filaments preferably of larger average denier. The longer filaments thus protrude in loops from the yarn bundle, and have spiral cross-sections.

Abstract: An improved method for making a continuous filament heather dyeable yarn involves cobulking in a hot fluid jet process a first unbulked yarn with a second differentially dyeable previously bulked yarn. The method enhances differential dyeability in the product when both yarns have a common type of chemical dye site and the second yarn has a greater concentration of those dye sites than the first yarn.

Abstract: Spun yarn-like textured polyester yarns comprised of two types of polyester multifilament component yarns and having broken filaments, in which textured yarns there is a difference in length between the component yarns, whereby high bulkiness is imparted thereto. The individual filaments of one of the component yarns have a fineness less than those of the other component yarn. The spun yarn-like textured yarns have satisfactory pilling resistance and frosting resistance.The spun yarn-like high bulky textured yarns can be produced by a process comprising doubling two types of undrawn polyester multifilament yarns having different properties through an intertwisting regulative device and simultaneously draw-texturing the doubled undrawn yarns.

Abstract: Spun yarn-like high bulky textured polyester yarns comprised of two types of polyester multifilament component yarns A and B and having broken filaments, in which textured yarns there is a difference in length between the component yarns A and B, whereby very high bulkiness is imparted thereto. The individual filaments of the component yarn A have a fineness and an intrinsic viscosity less than those of the component yarns B. The spun yarn-like high bulky textured yarns have satisfactory pilling resistance and frosting resistance.The spun yarn-like high bulky textured yarns can be produced by a process comprising doubling two types of undrawn polyester multifilament yarns having different properties through an intertwisting regulative device and simultaneously draw-texturing the doubled undrawn yarns.

Abstract: The present invention relates to a process and product for directly producing a latent heat-bulkable yarn from the same polymer composition in the same spinning process. The self-crimping yarn is produced from polyethylene terephthalate compositions which are melt spun at high speeds to form a plurality of spin oriented filaments. The filaments are divided in the spinning column into at least two groups and the two groups of filaments are subjected to different heat conditions, recombined, and taken up as a fully drawn yarn. The high spinning speed and differential heat treatment are selected to produce highly spin oriented yarn of relatively high spun birefringence with the conditions of spinning speed and heat treatment being controlled to produce a desired shrinkage differential between the two groups of filaments of up to 60 percent.

Abstract: A method for producing ingrain spun-like yarn simulating a blended staple yarn is described wherein continuous filament yarn is produced which has characteristics similar to blended staple spun yarns. Fabrics made from the yarns described herein provide a fine grained heather appearance without the normal moire or plaiting effect seen in previous ingrain continuous filament yarn fabrics. The unusual continuous filament yarn described herein is made by a texturing process which involves the combination of two or more differently dyeable continuous synthetic yarns which are false twist textured followed by overfeeding to an air bulking means. The preferred method utilizes false twist texturing of synthetic filaments such as polyester, nylon, cellulose acetate or cellulose triacetate and mixtures thereof wherein two differently dyeable yarns are combined with an air bulking jet interposed to act on the false twist textured yarn while it has a high residual torque and subsequently decaying said torque.

Abstract: A coherent, bulked, continuous-filament, heather-dyeable yarn having a more natural, spun, wool-like appearance in carpets consists of lighter dyeing filaments which comprise 20-50% of the total yarn filaments and which are 15-45% longer than the darker dyeing filaments in the yarn. The yarn is produced by overfeeding the lighter dyeing filaments to a greater degree than the darker dyeing ones through a turbulent fluid-jet intermingling zone.

Abstract: A process is disclosed for producing a continuous multifilament yarn of melt-spinnable, polymeric material which is essentially free from stretch and which comprises draw-texturing a first continuous filament yarn end, combining the first end with a second flat continuous filament yarn end, and feeding the combined textured and flat ends through a jet interlacer in an overfeed condition with the textured end being fed at a greater rate of overfeed than that of the flat end. An alternate process is disclosed wherein draw-texturing of the first textured yarn end and drawing of the second flat yarn end are performed simultaneously prior to jet interlacing of the overfed combined ends. Also disclosed is the spun-like continuous multifilament yarn produced by the novel process as well as resulting fabric made from the yarn.

Abstract: A process is disclosed for producing a continuous multifilament yarn of melt-spinnable, polymeric material which comprises draw-texturing first and second continuous filament yarn ends separately and then combining the yarn ends in an interlacing zone by feeding one of the yarn ends at a higher speed than the other through a jet entangler to interlace the yarns together. Also disclosed is the spun-like continuous multifilament yarn produced by the novel process.

Abstract: The present invention comprises a process for producing a randomized novelty yarn which exhibits essentially no uniform characteristics along its length and a novelty irregular fabric produced therefrom. The novelty yarn is comprised of at least two unlike yarn ends whose different characteristics, when formed into a combination yarn, produce a fabric which is essentially non-uniform and exhibits a random pattern over the length and width thereof.

Abstract: Cellular linear filaments are disclosed and include a substantially continuous, integral plastic hollow member having internal generally transverse partitions which divide the hollow member into cells. The wall of the hollow member can be continuous or can contain orifices, slits, windows and the like. The cells can be open or closed and uniformly or randomly spaced along the tubular member. The cells are defined by transverse partitions which can be integrally formed with the hollow member or they can be seals in the hollow member. Woven, non-woven and tufted materials including yarns made up in part or in total of the cellular linear element are also disclosed. The cellular linear element can be cut into discrete lengths to form pile-like elements which can be attached upright to a base to form a multi-element device.

Abstract: The invention relates to a composite, synthetic multi-filament carpet yarn of polyamide, which yarn is composed of a number of intertwined basic yarns of varying dye affinity and/or crimped yarns of different colors.

Abstract: A process for producing a continuous multifilament yarn of melt-spinnable, polymeric material comprising simultaneously draw texturing two partially oriented feeder yarn ends having different molecular orientation due to their respective spinning operations, including plying the two yarn ends together, friction texturing and air jet interlacing the resulting composite yarn. Also disclosed is the spun-like continuous multifilament yarn produced by the disclosed process as well as the resulting fabric made from the yarn. The yarn has components of differing crimp amplitude and frequency.

Abstract: A method for producing ingrain spun-like yarn simulating a blended staple yarn is described wherein continuous filament yarn is produced which has characteristics similar to blended staple spun yarns. Fabrics made from the yarns described herein provide a fine grained heather appearance without the normal moire or plaiting effect seen in previous ingrain continuous filament yarn fabrics. The unusual continuous filament yarn described herein is made by a texturing process which involves the combination of two or more differently dyeable continuous synthetic yarns which are false twist textured followed by overfeeding to an air bulking means. The preferred method utilizes false twist texturing of synthetic filaments such as polyester, nylon, cellulose acetate or cellulose triacetate and mixtures thereof wherein two differently dyeable yarns are combined with an air bulking jet interposed to act on the false twist textured yarn while it has a high residual torque and subsequently decaying said torque.

Abstract: Polyester feed yarn for drawtexturing, having an elongation at break of 30 to 150 percent, is composed of three different types of filaments. (A) 20 to 40 percent of the filaments consist of a polymer of ethylene terephthalate and 0 to 3 mole percent of modifying groups for imparting cationic dyeability. (B) 20 to 40 percent of the filaments consist of a copolymer of ethylene terephthalate and about 5 to 15 mole percent of other ester units. (C) 15 to 35 weight percent of the yarn consists of eccentric bicomponent filaments of the above two polymers. The bicomponent filaments have a smaller denier and lower elongation at break than the other filaments, so that the bicomponent filaments can be broken preferentially when the yarn is drawtextured to provide spun-like tactility. When broken, the bicomponent filaments helically crimp and become entangled in the yarn bundle with a slight, uniform protrusion of ends above the surface which provides good resistance to pilling in fabrics.

Abstract: The invention is related to a process for the production of staple-fibre-like textured continuous filament yarns by interlacing and false-twisting, wherein a partly drawn filament is heat-treated before the texturing process, this filament is subsequently interlaced with a non shrunken filament and both are finally subjected to draw texturing.

Abstract: A continuous yarn structure comprising at least one yarn element formed from a plurality of continuous filaments or a plurality of staple fiber lengths, the yarn structure comprising periodically repeating lengths of high bulk, substantially unentangled continuous filaments or staple fiber lengths alternating with lengths of compacted continuous filaments of staple fiber lengths in which substantially all filaments or fiber lengths are mutually entangled throughout the volume of the compacted lengths.Also disclosed is a method for producing such yarn. The method comprises the steps of feeding at least one multiple filament yarn element or multiple staple fiber element under tension to a first treatment zone having a predetermined cross-sectional area; continuously directing a fluid at the yarn element in a direction substantially perpendicular to the travel of the element, the fluid being applied at a pressure of at least about 100 p.s.i.