Abstract: A cut resistant fabric is made from woven or knitted yarn; the yarn includes a cut resistant fiber having a tenacity of less than about 10 grams/denier. A cut resistant fabric is made from woven or knitted yarn. The yarn includes a polyethylene fiber having a tenacity of less than about 10 grams/denier and a molecular weight of about 100,000. The yarn may be in the form of a composite yarn having a core and a wrap. The polyethylene fiber is in the wrap.

Abstract: An incandescent mantle tie cord comprises a continuous multifilament first core of a refractory fiber, a second core of another continuous multifilament yarn and an outer sheath of staple fibers wrapped about said first and second cores.

Abstract: A buoyant line or rope made from two or more strands of natural or synthetic fibers, with the fibers in one or more of the strands being arranged (e.g., by being spun or "laid") around a buoyant core. The relative buoyancy of the line may be increased or decreased by changing the number of strands having a buoyant core or by changing the diameter of the buoyant cores.

Abstract: A yarn for making an electromagnetic shield fabric includes at least one textile thread containing metallic fibers and other fibers which particularly but not exclusively may be man-made fibers. The predominant portion of the metallic fibers or the entire content of metallic fibers is arranged in the inner cross-sectional area of the textile thread. The outer cross-sectional area of the textile thread sheathing the inner cross-sectional area is made predominantly or exclusively of fibers well tolerated by the skin, particularly natural fibers and/or man-made fibers. The yarn which may consist of said textile thread itself or which may be a twisted yarn produced using one or several of such textile threads may be processed into fabrics, warp-knitted fabrics or knittings serving to shield electromagnetic radiation and which are physiologically well tolerated and have good further processing properties as well as are easy to clean.

Abstract: Fusible adhesive yarn in which spun core yarn and heat fusible yarn are twisted with each other in the same or opposite twisting direction as or to that of the spun core yarn. The spun core yarn is composed of elastic yarn and non-elastic short fiber assembly extending in the direction of the elastic yarn so that the non-elastic short fiber assembly encloses the circumference of the elastic yarn as a core.

Abstract: A method for manufacturing a composite yarn of staple fibers and continuous multifilament yarn. The multifilament yarn is made from non-set, textured, no oil, polyester and first pretensioned before entering a spinning chamber where it is co-spun with the staple fibers which is made from pima cotton. The tension is relaxed after passing through the spinning chamber to allow the filaments of the yarn to expand and form a matrix to which the staple fibers can adhere. The expanded filaments cause the staple fibers to be tightly wound around the core. A composite yarn is also disclosed.

Abstract: Disclosed are microfiber-containing core-spun yarns and fabrics formed therefrom, wherein the core-spun yarn contains a core containing one or more non-micro fibers and a sheath covering and twisted about the core, wherein the sheath contains either staple composite islands-in-the-sea microfiber-generating fibers or staple microfibers formed by treating the composite fibers with a solvent to remove the sea component either before or after formation of the fabric.

Abstract: A heat resistant woven fabric with an optional aluminized backing is disclosed. The fabric is particularly suited for heat resistant garments intended to resist radiant heat and minor molten metal splashes. The fabric comprises of core-spun yarns having a core of flame and high heat resistant filament fiberglass yarn covered by a layer of flame retardant modacrylic fibers, with or without blending with other fibers.

Abstract: A short fiber and continuous filament composite yarn having a high grade cotton spun yarn-like soft touch, satisfactory resilience, and uniform appearance, including a core portion formed by a plurality of cold drawn, non-crimped individual filaments substantially in the form of a bundle and a peripheral portion formed around the core portion and comprising a plurality of cold drawn-cut, non-crimped short fibers having a smaller shrinkage in boiling water, and optionally, a lower denier than those of the individual filaments, random portions of the short fibers being penetrated into the bundle of the individual filaments and intertwined with the individual filaments, and other portions of the short fibers forming a plurality of loops projecting in the form of waves having different wave heights, from the core portion toward the outside thereof to form multilayered loop structures around the core portion.

Abstract: A heat resistant woven fabric with an optional aluminized backing is disclosed. The fabric is particularly suited for heat resistant garments intended to resist radiant heat and heavy molten metal splashes in the temperature range of 2700.degree.-3000.degree. F. The preferred fabric has core-spun yarns with a flame and high heat resistant filament core covered by a layer of flame retardant fibers consisting of at least 35% melamine.

Abstract: A hybrid yarn which comprises an intimate blend of reinforcing fibers and matrix-forming thermoplastic fibers made of low viscosity polyamide and has been overwrapped with a further polyamide yarn is useful for producing laid, woven, knitted, braided and wound structures, which in turn can be consolidated into fiber composites.

Abstract: Composite flexible multilayer insulation systems (MLI) were evaluated for thermal performance and compared with currently used fibrous silica (baseline) insulation system. The systems described are multilayer insulations consisting of alternating layers of metal foil and scrim ceramic cloth or vacuum metallized polymeric films quilted together using ceramic thread. A silicon carbide thread for use in the quilting and the method of making it are also described. These systems are useful to provide lightweight thermal insulation for a variety of uses, particularly on the surface of aerospace vehicles subject to very high temperatures during flight.

Abstract: A reinforcement thread (1) for fabric coverings or technical textiles, intended to be incorporated in a textile base which comprises a synthetic or artificial core thread (2) and first cladding fibers (3) deposited about the core thread (2). The first cladding fibers (3) are bonded to the core thread (2).

Abstract: A method for spinning yarn produce the yarn having properties generally comparable to those of ring spun yarn. A rotatable hollow shaft having an entrance at one end and an exit at the other is rotatable about an axis extending in a direction A. A number of free fibers are fed in the linear direction A in a fiber mass, certain of the fibers having free trailing ends. The fiber mass is passed into the interior of the hollow rotatable shaft through the entrance. An air flow is established with respect to the shaft to effect separation of the free trailing ends of the fibers, preferably by establishing an air flow path that is initially substantially unidirectionally in direction A and then is deflected to move at an angle with respect to the direction A away from the shaft. The shaft is rotated at high speed about its axis so that the trailing ends of the fibers wrap around other portions of the fiber mass to produce a yarn, and the yarn is withdrawn through the exit of the shaft.

Abstract: A composite yarn comprises a staple fiber component that is formed by drafted sliver. A filament yarn component is formed by applying tension to a filament yarn initially having a crimp such that the crimp is temporarily substantially removed. The staple fiber component and the pretensioned filament yarn component are combined by spinning while the tension is applied to the filament yarn.

Abstract: A frictional material is made of cloth which is impregnated with a bituminous material and/or a synthetic resin. The cloth is woven from a yarn made by twisting single yarns with reinforcing metal wires. The single yarn consists of a center core in the form of a roving or a yarn of inorganic fibers such as glass fiber, rock wool or ceramic fiber and a covering element in the form of a sliver of organic fibers such as staple fiber, aromatic polyamide fiber or flame-resistant fiber. The frictional material obtained is excellent in physical strength and in resistance against heat, effective for preventing dispersion of dust and irritation to human bodies, and advantageous from the viewpoint of cost.

Abstract: Fabrics containing polybenzazole fibers have high cut-resistance, and can be used to make cut-resistant and flame-resistant garments.

Abstract: An shock-absorbing air bag for an automobile or aircraft, has a high heat and flame resistance and satisfactory mechanical strength and comprises a high density woven fabric composed of warps and wefts each comprising (a) 0 to 90% by weight of thermoplastic synthetic fibers, for example, polyester fibers, having a denier or 5 or less and a Young's modulus of 1300 kg/mm.sup.2 or less, and (b) 10 to 100% by weight of heat resistant organic fibers, for example, aramid fibers, having a denier of 2 or less and a thermal decomposition temperature of 300.degree. C. or more, the woven fabric preferably having a high cover factor of 1900 or more.

Abstract: Disclosed herein is a fire-resistant textile yarn comprising a core formed from an inorganic filament surrounded by fibres formed entirely or in part from aramid resin. Also disclosed is a fire-resistant textile yarn comprising a core formed from a ply yarn comprising double-threaded - multi-glass filaments, the core being surrounded by fibres formed entirely or in part from aramid resin.

Abstract: A fasciated yarn is produced that is suitable for making apparel fabric from predominantly non-thermoplastic staple fibers, and which approaches ring spun yarn in properties and appearance but can be produced much more quickly and simply. The fasciated yarn comprises vacuum spun yarn consisting of fibers including core fibers and wrapper fibers, the wrapper fibers being predominantly individual fibers although having some groups of wrapper fibers. The groups of wrapper fibers appear as non-uniform, non-consistent groupings and provide a relatively smooth appearance. The wrapper fibers are wrapped at a helix angle of about 30.degree. (e.g. about 30.degree.-50.degree.), and about 20-30 percent of the fiber mass comprises the wrapper fibers. The wrappers are essentially devoid of auger or corkscrew appearance. The core fibers are essentially parallel staple fibers. The wrapped and core fibers have the same dyeability.

Abstract: This invention consists of a pintle for use in closing the pin seam of an on-machine-seamed (OMS) press fabric. The pintle takes the form of a braided, knitted, or ply-twisted yarn whose components are monofilaments of various and/or varying diameter. It has an essentially circular cross section for ease of installation, but will flatten in use to an oblate shape closely conforming to that of the void shape formed by the loops at the end of the press fabric and leaving little or no gap when the seam is closed and under tension. Its porous structure allows the passage of water. In this way, the completed seam will more closely resemble the main body of the press fabric.

Abstract: The invention relates to combinations of polymer filaments or yarns of high tensile strength, high modulus and low coefficients of friction and filaments or yarns of high coefficients of friction. Combinations of this type, which have been produced in particular by core spinning the filaments or yarns of low coefficient of friction with filaments or yarns of high coefficients of friction or by twisting the two filament or yarn components, are suitable in particular for producing bulletproof wovens, knits and nonwovens.

Abstract: An improved shoelace with an inner core of copper wire strands encased in a cover of clear polyvinylchloride, which is contained in an outer jacket or casing of polypropylene fiber. When the shoelace of the invention is threaded through a shoe and then tied into a bow, it retains its shape and does not become untied by itself. The bow may also twisted, turned, or otherwise shaped so as to further prevent the untying of the shoe by the fact of the retention of that shape by means of the inner core of twisted copper strands.

Abstract: Yarn comprising a core consisting of an inorganic filament surrounded by fibers made at least partly from aramide resin. The yarn count is between 30 and 60 tex, the weight proportion of the core is between 10 and 25%, the aramide fibers being spun around this core free from axial torsion.

Abstract: The corespun yarn is formed on a friction spinning apparatus and comprises three components, including a core of high temperature resistant fibers, a core wrapper of low temperature resistant fibers surrounding and covering the core, and an outer sheath of low temperature resistant fibers surrounding and covering the core wrapper and the core. The high temperature resistant fibers of the core are selected from the group consisting essentially of aramid fibers (Kevlar and Nomex), and polybenzimidazole fibers (PBI). The low temperature resistant fibers of the core wrapper and the outer sheath are either natural or synthetic fibers, such a cotton and polyester.

Abstract: Vacuum spinning of yarn produces yarns having good properties, and which may have a wide variety of different effects and constructions. A core filament yarn may be fed into operative association with a nipped sliver or roving, and then fed to a perforated rotating hollow shaft operatively connected to the vacuum. The core filament yarn may be a full stretched textured yarn, which is placed under tension and while under tension is dragged over a sharp edge of nonconductive material, and after the tension is relieved develops crimp. This causes individual fibers to be repelled, and provides for intermixing of the nipped sliver or roving fibers and the core filament yarn fibers. Alternatively the filament yarn may be acted upon by draft rollers before the entrance to, and after the exit from, the hollow rotating shaft, to apply a force that breaks up to about 20% of the fibers. The yarns produced utilizing the broken fibers has a spun-like appearance.

Abstract: The present friction spinning apparatus includes a draw frame section with an entrance trumpet including first and second fiber sliver guiding passageways for forming a three component corespun yarn. One of the guiding passageways directs a core roving into the draw frame section while the other sliver guiding passageway directs a core wrapper sliver into the draw frame section so that the core wrapper fibers surround the core fibers. Wrapping fibers are then wound about the core and core wrapper fibers in an elongated throat extending between a pair of rotating suction drums.

Abstract: A mottled appearing yarn having a main strand of fibers and wrapper fibers of different color than the main strand. The yarn is produced by feeding longer and coaser fibers with shorter and finer fibers in an open end rotor spinning machine and controlling the operation to accentuate wrapper fiber formation with the longer and coarser fibers. The wrapper fiber formation is accentuated by using a relatively low rotor diameter to fiber length ratio and by using an aggressive navel action.

Abstract: An air spinning method and apparatus for spinning a yarn. The apparatus includes a pipe with a fiber bundle passageway, air jet nozzles for applying whirling air currents near the inlet of the pipe, and a rotating body including air discharge passages and revolving around the pipe. In the method, the fiber bundle is passed through the pipe's fiber bundle passageway. Rear ends of some fibers are separated from the fiber bundle by air currents jetted from the nozzles so as to be rotated together with air currents by the rotating body after drawn into the discharge passage. Fibers lying in the central portion of the fiber bundle, pass through the pipe's fiber bundle passageway without being influenced by the air currents jetted from the nozzles.

Abstract: A sewing thread, whose twist factor is between 100 and 150, consists essentially of a fixed high-tenacity multifilament core, sheathed with a cover of staple fibers, the unit being wrapped with a multifilament yarn. The process of spinning this sewing thread is performed on a spinning frame. The core yarn and the roving of staple fibers are brought to drawing rolls in the drawing plane, and wrapping yarn is brought to the drawing rolls in an offset manner relative to the spinning plane.

Abstract: A device for producing spinning yarn including a rotary pipe having a sliver path through which a sliver coming out from a front roller pair of a draft device is passed, a rotary plate formed integrally with and spaced from the entrance of the rotary pipe, and a casing surrounding the rotary pipe and the rotary plate. The casing has formed therein an injection nozzle which is opened obliquely toward the entrance of the rotary pipe for injecting whirling air, an air relief hole formed adjacent the rotary plate, an air whirling chamber in which air injected from the air injection nozzle whirls at a high speed, and an air relief chamber in communication with the air whirling chamber and having a gradually increasing volume.

Abstract: In order to incorporate a weighting cord into the curtain without hindrance, not only is a bead array of spaced weighting bodies employed but this bead array is also surrounded by a textile tube which is to provide a cord surface substantially free of discontinuities. To produce the weighting cord economically, it is proposed to make it as a yarn composite using a spinning procedure. Here, the bead array constitutes a yarn core extending in axial direction of the yarn, and spun fibers are wound around the yarn core thereby generating a tube-like spun fiber coat.

Abstract: A method and apparatus for producing thread or yarn-like material by electrostatically flocking it or covering it with fibers. Grounded base or carrier threads that are provided with adhesive are moved through an electrostatic field of high voltage, where the surfaces of the carrier threads are flocked all the way around with pretreated short fibers (flock material). During the course of producing the flocked thread or yarn, selective lengths of the carrier threads are nonuniformly flocked in an irregular sequence, with the flock material, in different flock patterns.

Abstract: Vacuum spinning of yarn produces yarns having good properties, and which may have a wide variety of different effects and constructions. A core filament yarn may be fed into operative association with a nipped sliver or roving, and then fed to a perforated rotating hollow shaft operatively connected to the vacuum. The core filament yarn may be a full stretched textured yarn, which is placed under tension and while under tension is dragged over a sharp edge of nonconductive material, and after the tension is relieved develops crimp. This causes individual fibers to be repelled, and provides for intermixing of the nipped sliver or roving fibers and the core filament yarn fibers. Alternatively, the filament yarn may be acted upon by draft rollers before the entrance to, and after the exit from, the hollow rotating shaft, to apply a force that breaks up to about 20% of the fibers. The yarns produced utilizing the broken fibers has a spun-like appearance.

Abstract: Vacuum spun yarn is produced that has strength property approaching that of ring spun yarn, and significantly greater than air jet spun yarn, and may be produced at speeds greatly in excess of production speeds for ring spun yarn. An elongated hollow shaft has a through-extending passageway from a first end to a second end thereof, with a portion of the shaft adjacent the first end being perforated (e.g. four equally spaced perforations). The perforations shaft in the direction of the second end from the through-extending passageway, and a generally spherical vacuum reservoir is formed in the shaft in communication with the passageway and perforations. The portion of the passageway between the shaft first end and the vacuum reservoir is significantly larger in cross-sectional dimension than the portion of the passageway from the vacuum reservoir to the second end of the shaft.

Abstract: A bound spun yarn comprising substantially twistless core fibers and wound fibers wound spirally around the core fibers. The core fibers and the wound fibers have colors different from each other and the number of the wound fibers vary randomly in a longitudinal direction of the yarn.

Abstract: A composite rope obtained by a process comprising(1) impregnating a fiber core of a reinforcing fiber bundle with a thermosetting resin,(2) coating the outer periphery of the resin-impregnated fiber core with fibers, and(3) curing the thermosetting resin with heat.

Abstract: Yarn having properties approaching that of ring spun yarn is produced by vacuum spinning, including directly from sliver. The elongated hollow shaft of the vacuum spinning apparatus has a vacuum reservoir, or interior chamber, that is generally in the shape of a right circular cone, and the interior passageway of the shaft from the first end thereof to the interior chamber can have the form of a right circular cone frustum. The perforations operatively connected to the interior chamber have a generally wedge-shape. The perforations and the passageway sections between the first end of the shaft and the perforations are dimensioned so that they allow sufficient air flow to achieve optimum fiber wrapping action.

Abstract: An unusual spun yarn is produced by feeding fibers or a sliver or roving into the interior of a hollow shaft. The shaft includes a perforated portion, and a vacuum is applied at the exterior of the shaft. The shaft is mounted for free rotation about an axis coincident with the direction of movement of the fibers through the shaft, and blades extend radially from the perforated portion of the shaft. When the rotates at high velocity under the influence of the vacuum it produces the unusual spun yarns.

Abstract: Method of and apparatus for making yarn with a core, wherein the free fibers are tightly attached to the core and are wound around it. The core of fibrous material is fed by a pair of feeding rollers, the core being fed through a first jet for the formation of wrapping of fibers. In the first jet, fibers are laterally driven in by an air stream. Simultaneously with the laterally led in fibers in the first jet for the formation of wrapping, there is driven in an additional core thread, which moves with the linear velocity of the core. Such additional core thread is made of fibrous material of staple fibers or is made of filament material. The laterally led in fibers and the additional core thread have a mutual trajectory of movement and are driven in the jet for the formation of wrapping by the suction of the tangentially fed same jet air stream.

Abstract: Method for producing a fiber spun yarn of the type in which parallelized elementary fibers are joined to a textile core, subjected to a false twist, said fibers being projected on the core, upstream of the false twist spindle.According to the invention, in the fibers projection zone, the core is guided into a channel with an open face which is situated in facing relation to the elementary fibers projection zone and the surface of which is subjected to a flow of fluid tending to exert a pulling force on the end of the fibers.

Abstract: In order to obtain a bead ring for tires which is both lighter and stronger than the known bead rings, the bead ring is formed of an annular core, for example of steel, surrounded by at least one layer formed of at least one strand of continuous nonmetallic filaments which are practically parallel to each other and free of impregnation, which strand is wound around the core in the same direction to a layer thickness at least equal to twice the average diameter of a filament and with a winding pitch p less than 2.sqroot.ac (in which a is the radius of a circle equivalent to the perimeter of the cross section of the core and c is the average circumference of the core) and a twist in the same direction as the winding and equal to one turn per pitch.

Abstract: A high bulk olefin blended yarn includes selected percentages by weight of olefin fiber with naturally occuring fiber such as cotton or wool, which are cut and blended together to form a staple thereof which are then spun and twisted in a conventional manner to form the blended yarn, the yarn becoming a high bulk yarn under controlled high heat levels. Preferably, 60% to 85% of cotton or wool by weight and 40% to 15% of olefin by weight are blended together. In a modified form, 20% to 40% by weight of polyester can replace a like amount of weight of the cotton or wool to reduce the cost thereof. The olefin in the fabric formed from the high bulk olefin blended yarn produces a wicking action capable of transmitting moisture from the wearer's body.

Abstract: A heat resistant fabric is provided, preferably woven, and with an optional aluminized backing, the fabric being made from yarns having a core of flame and high heat resistant non-melting heat stabilized polyacrylonitrile fibers covered by a layer of aramid fibers or other heat resisting fibers with or without blending with other fibers, the covering layer providing a cushion to provide increased abrasion resistance of the core while also providing a heat resistant covering for the core.

Abstract: A process for the production of a core/mantle yarn, in which a core thread is continuously conducted through a spinning zone in a gap formed between two adjacent and oppositely moving surfaces; staple fibers are fed into the path of the core thread and come into frictional contact with the moving surfaces in said zone to spin the staple fibers about the core thread; the core thread is preferably stretched during the spinning in order to bring about a defined, predetermined elastic stretch of the core thread in the spinning zone; and the core thread has a roughened surface which may be obtained by using a staple fiber yarn or thread obtained by texturizing, weaving, twisting, etc. The invention is especially characterized by an improved adherence of the fibers of the mantle to the core thread by pre-coating the core thread with an adhesive, or preferably by preapplying colloidal silicic acid to the core thread.

Abstract: There is provided a new wrapped textile thread which includes a core made of threads arranged considerably parallel to each other. The core is covered by a wrapping thread which winds in a single turn, forming a regular and joined spiral around the core. This textile thread is characterized by the fact that at least one part of the peripheral surface of the core is joined together by heat sealing with the wrapping of winding thread. The textile thread is useful in textile materials which require a very good resistance against abrasion.

Abstract: An integrated string primarily for use in connection with athletic rackets, such as tennis, badminton, squash and the like, but also usable for fishing line, musical strings, etc., said string in one embodiment comprising a thermoplastic core having a thermoplastic sheath covering same and integrated thereto, said core material and said sheath comprising strands therein having substantially different melting points, and in a second embodiment said string consisting of a braided sheath, with no inner core, said sheath comprising thermoplastic strands having substantially different melting points.

Abstract: A method and apparatus for producing core yarn comprising introducing yarn constituting the core through a supply channel into a stationary spinning chamber, leading the yarn inside the chamber along a straight line to staple fibres rotating in a plane perpendicular to the axis of the chamber, joining and wrapping the core with the staple fibres and guiding the finished yarn out of the chamber to take-up rollers. The spinning chamber comprises two cylindrical chambers with different diameters adjoining one another and in the cylindrical chamber of greater diameters there are tangentially disposed air guide vanes, a channel for discharge of the finished yarn, and a channel for supplying the staple fibres. The outlet of the channel for supplying the staple fibres is disposed above the inlet of the channel for discharge of the finished yarn and above the air guide vanes. In a widening portion of the cylindrical chamber of smaller diameter the inlet of the channel for supplying the yarn is provided.

Abstract: The instant specification describes an improved method for the manufacture of composite yarns having a central carrier with fibers or filaments adhered thereto. The method includes the step of using a partially oriented yarn as the carrier material and drawing or stretching the partially oriented yarn immediately prior to or as the yarn passes through an extruder to be coated with a binding material.

Abstract: This present invention relates to a spun yarn having novel structure and a method of producing the same. The spun yarn of the present invention consists of a number of fibers arranged in a predetermined direction and twisted together, one end of which fibers is spirally wound around the surface of the yarn. The yarn of the present invention is spun by successively passing a sliver through a pneumatic yarn twisting device, untwisting tube, and false twisting device in turn. The twisting device, untwisting tube and false twisting device are disposed between front rollers and delivery rollers.