Abstract: A polytetrafluoroethylene textile and manufacturing method thereof is disclosed. a pretreatment process is performed on a plurality of polytetrafluoroethylene yarns. In the pretreatment process, a step of extending the polytetrafluoroethylene yarns are extended, the polytetrafluoroethylene yarns are knitted into a polytetrafluoroethylene fabric, the shape of the polytetrafluoroethylene fabric is fixed, and the polytetrafluoroethylene fabric are de-knitted into the polytetrafluoroethylene yarns with a plurality of knit-assisting parts. A second knitting process is performed to knit the polytetrafluoroethylene yarns and a plurality of artificial yarns together to obtain the polytetrafluoroethylene textile.

Abstract: A material including at least one nonwoven layer of fibers is provided comprising textured yarns, preferably knit-deknit yarns. The textured yarns included in the material enables the mechanical properties of the material to be adjusted to enable the material to conform to high local deformations.

Abstract: A method of manufacturing an article of footwear includes providing a yarn that is at least partially package dyed. The method also includes flat knitting a knitted component at least partially from the yarn. The knitted component has an area with a density of at least twenty-eight courses per inch (28 CPI). Moreover, the method includes forming at least a portion of an upper of the article of footwear with the knitted component.

Abstract: An implantable structure, method for making the structure and method for using the structure, where the structure includes a combination of non-absorbable and absorbable components, and the implantable structure has a randomly uniform array of materials. The resulting implantable structure provides improved tissue ingrowth and flexibility after implantation and after absorption of the absorbable materials.

Abstract: A component crimping apparatus control method which enables a measuring tool to directly measure a temperature of a part pressed by a pressing head. The component crimping apparatus control method is applied to a component crimping apparatus which crimps a component onto a plate-shaped workpiece, and causes a measuring tool shaped identically as the workpiece to measure a temperature or a pressure of a pressed part in a pressing process of pressing a component onto the workpiece using a heated pressing head. The method includes acquiring information indicating whether or not the measuring tool is held in the component crimping apparatus, and, in the case where the information indicating that the measuring tool is held is acquired, positioning the measuring tool identically as the workpiece, and executing the pressing process on the component to be attached to the measuring tool after the positioning.

Abstract: Process for treating threads by knitting-unraveling includes: knitting several individual threads (2) on a multi-feed knitting machine (1); carrying out one or more heat, chemical or other treatments, in one or more chambers (7); carrying out, in an unraveling unit (4), an unraveling with pulling on the first knit thread and winding or beaming the unraveled threads (2) individually or carrying out on these individual threads another treatment operation or a production operation, optionally with an intermediate accumulation of the threads. The invention can be applied more particularly in the field of the textile industry, in particular the treatment of threads, particularly texturing by knitting-unraveling.

Abstract: Methods for unraveling knitted fabrics and a machine for unraveling knitted fabrics in order to reuse the yarns of a knitted fabric to be unraveled; the methods providing that the yarns can be unraveled either by stretching and loosening the yarns or by twisting the yarn plies onto each other whatever the knit type and the number of yarns are and the methods having stretching-loosening and twisting characteristics.

Abstract: An improved heavy denier fibrillated polymer carpet yarn is densely knit, deknit and heat treated. An improved carpet face yarn is provided in an omnidirectional carpet pile.

Abstract: An improved heavy denier fibrillated polymer carpet yarn is densely knit, deknit and heat treated. An improved carpet face yarn is provided in an omnidirectional carpet pile.

Abstract: A yarn which imparts a high level of wearing comfort to a textile portion is produced by forming a knitted portion from the yarn, subjecting the knitted portion to a treatment by which the curl imparted to the yarn by the stitches of the knitted portion is set. The yarn is undone again after the setting step. The yarn has preferably a main thread and an elastic thread. A textile fabric and an article of clothing are also provided.

Abstract: An apparatus and method for deknitting a knitted tape of yarn having a plurality of yarn ends. The apparatus includes a plurality of stationary cylindrical connectors arranged in parallel alignment across the frame structure of the apparatus. One stationary connector, proximate to the knitted yarn receiving end of the apparatus, is positioned parallel to and beside an adjustable cylindrical connector which can be selectively moved closer to or further away from the stationary connector. The adjustable and parallel stationary connector thus form a deknitting restraining gap of adjustable dimension, the dimension being adjustable to restrict the traverse of the knitted yarn sufficiently to effectively deknit the yarn with uniform tension on each yarn end being deknitted. The apparatus uniformly deknits yarns of various types and deniers.

Abstract: The yarn undoing device comprises a rotary trunk for mounting the knitted fabric, a plurality of yarn winding rotary members disposed at a proper distance at an outer extended position upward of the rotary trunk, a drive device for rotating the rotary trunk in a direction opposite a direction where the yarn of the knitted fabric is undone and rotating it intermittently for a fixed amount of rotation set on the basis of a shifting range of the undoing of the yarn, a clutch provided on the yarn winding rotary members, a device for setting a shifting range of the undoing of the yarn to be drawn from the knitted fabric provided on the rotary trunk to a range where the yarn is rewound on the yarn winding rotary member without causing the twisting and the like and detecting an amount of a range where the yarn to be drawn from knitted fabric provided on the rotary trunk is undone, and a device for performing the engaging or disengaging operation of the clutch of the yarn winding rotary member and driving operation o

Abstract: The invention involves a method to texturize absorbable or absorbable/nonabsorbable components that are to be used to fabricate textile grafts of all sizes, and specifically for repair of the peripheral vascular system and for coronary bypass use. The bioabsorbable component of the graft fosters increased tissue ingrowth into the graft as compared to conventional 100% nonabsorbable grafts. Increased tissue ingrowth leads to greater patency through formation of a vascularized neointima and less tendency to be aneurysmal through formation of a suitable adventitia. The absorbable component can be a variety of materials, including PGA, the polymer used to manufacture the MAXON.TM. suture, etc., whereas the nonabsorbable component (to be used as the backbone) can be new materials, e.g. the polymer used to manufacture the NOVAFIL.RTM. suture, or more conventional polymers, including polyester, polyamide or polypropylene.

Abstract: An apparatus and method for feeding a knitted yarn package having a plurality of yarn ends to a textile fabric making machine. The apparatus includes takeup means for moving the yarn in the direction of the machine and tension means located upstream of the takeup means for providing resistance to the movement of the yarn in the direction of the machine. An unravelling assembly is positioned between the takeup means and the tension means for engaging the yarn ends. The unravelling assembly is operable to uniformly unravel the knitted yarn package.

Abstract: Knit sport shirts and the like characterized by having the body portion and the trim of exactly the same color shade are manufactured by circularly knitting the same type of yarn to form first and second tubular fabrics and then simultaneously dyeing both the first and second tubular fabrics together to obtain the same color in both fabrics. The second tubular fabric is unraveled and the unraveled yarn is used in knitting the trim on a flat knitting machine. The first tubular fabric is cut and sewn to form the body blank and the knit trim is attached to the body blank to complete the sport shirt.

Abstract: The invention provides a process for the continuous successive drawing and texturizing of undrawn multifilament polyester yarns according to the knit/deknit process, wherein undrawn filaments or yarns having a high preorientation corresponding to a yield stress of above 7.5 cN/tex are continuously drawn at room temperature and immediately thereafter subjected to a known knit/deknit texturizing.

Abstract: A textile material for supplying parallel threads to a machine for manufacturing two-dimensional textile fabrics. The material is loosely woven and has a low number of withdrawable weft loops 3 per unit length. Immediately prior to entering an end-product machine weft thread 2 is withdrawn to the side, so that the remaining group 1 of threads enters the machine. The material passes over braked rollers 31,32 and a bar 35. Retainer stitches 7 are unravelled and the weft thread 2 is passed through a guide 55 onto a transport device 57.

Abstract: An elastomeric strand supply package is provided in the form of a bundle of elastomeric strands held together by a series of connected chain stitches which extend along the length of the bundle. The chain stitches are unravelled to free the individual strands, as the strands are being fed to a textile machine.

Abstract: An elastomeric strand supply package is provided in the form of a bundle of elastomeric strands held together by a series of connected chain stitches which extend along the length of the bundle. The chain stitches are unravelled to free the individual strands, as the strands are being fed to a textile machine.

Abstract: Wide woven fabric having dipped and treated cords is made by first connecting warp cords of relatively strong material in at least two narrow sheets. The narrow sheets are dipped and treated after which they are positioned in loom letoff rolls adjacent a loom where they are joined to form a wide fabric having a width greater than the width of either of the narrow sheets. The warp cords from the narrow sheets are guided from the letoff rolls into the loom and during the process the narrow sheets may be run through a cord separating apparatus to separate the warp cords. The warp cords may be woven in the loom with a dipped and treated weft cord to provide a wide reinforcing sheet with a heavy woven construction having a width greater than the width of any one of the narrow sheets.

Abstract: An improved elastic yarn supply package is provided in the form of a double-face, warp-knit tape from which the elastic yarns can be unravelled for feeding to subsequent fabric-making operations. The improved package, which is readily spittable into narrower tapes, has repeating stitch patterns whose underlaps do not cross each other or run in opposite directions between wales.

Abstract: Process of producing and a resulting simulated "Berber" yarn produced from long staple spun or continuous filament yarn, preferably having continuous filaments or fibers at least six inches in length, and more preferably continuous filament nylon, to provide strength and other desired characteristics of such yarn while simulating the natural aesthetic appearance of "Berber" wool yarn. The yarn, preferably after having been initially completely dyed with a base color, is surface dyed at selected areas of varying sizes and random locations along the length of the yarn with heather colors or shades which do not penetrate all the way through the yarn for simulating varying staple lengths of natural wool fibers, and is thereafter dyed on small selected areas of the yarn at random locations along the length with one or more "Berber" accent colors which penetrate all the way through the yarn for simulating small clumps of very short natural wool fibers.

Abstract: Process of producing and a resulting simulated "Berber" yarn produced from long staple spun or continuous filament yarn, preferably having continuous filaments or fibers at least six inches in length, and more preferably continuous filament nylon, to provide strength and other desired characteristics of such yarn while simulating the natural aesthetic appearance of "Berber" wool yarn. The yarn, preferably after having been initially completely dyed with a base color, is surface dyed at selected areas of varying sizes and random locations along the length of the yarn with heather colors or shades which do not penetrate all the way through the yarn for simulating varying staple lengths of natural wool fibers, and is thereafter dyed on small selected areas of the yarn at random locations along the length with one or more "Berber" accent colors which penetrate all the way through the yarn for simulating small clumps of very short natural wool fibers.

Abstract: A device for intermittently tensioning a yarn passing therethrough in which a motor cam acts on a tension train mounted on a fixed shaft. The tension train is composed of a tension adjuster which provides tension on a base plate, spring, and tension discs mounted between a stop and the tension adjuster. In an embodiment of the invention a method for intermittently tensioning a yarn by passing the yarn between the tension discs of the device described above.

Abstract: A temporary fabric is formed by joining groups of two or more yarn strands at a time together at various longitudinally spaced points, forming generally transverse lines of joined points across an array of a plurality of parallel strands. No weft or filler yarn is used. An apparatus for joining is disclosed including a drum having a plurality of abrasive rotating joining discs in the surface thereof. A second embodiment includes joining discs moved transversely across a plurality of longitudinally traveling strands. The fabric can be separated into individual strands by pulling the strands apart.

Abstract: In a method of making carbon or graphite yarn, a bundle of single ply precursor yarns is knit into an elongated fabric to facilitate subsequent processing of the yarns. The elongated fabric is pretreated to facilitate carbonization thereof such as by being advanced in the direction of elongation thereof through a cleaning process. Thereafter the yarns remain in the form of the fabric to facilitate processing thereof through at least a carbonization step. The carbonization step may be accomplished by winding the elongated fabric onto skeins to a desired extent and then severing the fabric, following which the skeins are disposed in a carbonizing oven to at least partially carbonize the yarns. Thereafter, the fabric length on each skein may be deknitted, and the resulting bundle of single ply yarns is twisted to form a multi-ply yarn which is then fired to substantially raise the percentage of carbon in the yarns and then graphitized.

Abstract: A method is provided for making a multicolored yarn, in which the yarn is knitted into a tubular pre-fabric tape, the tape is straightened and flattened freeing it of any folds or wrinkles or the like, and is fed wale-wise in a straightened and flattened condition and printed with a multicolored design having a multiplicity of different colors in the course-wise direction, at least about every half inch or less. The resulting printed tape is set, deknitted and the resulting multicolored yarn is taken up. The yarn product has a multiplicity of short dashes of at least five different colors arranged adjacent each other along the yarn direction, and the dashes have an average length of about one inch or less.Fabric composed of the yarn, preferably of an apparel denier, has a pleasing multicolored effect.

Abstract: A method for producing conventionally usable, stable, preshrunk and crimped yarn from greige self-crimping bicomponent or biconstituent yarn. The method employs a knit-de-knit procedure to impart a so-called mechanical crimp in the self-crimping yarn as that yarn is subjected to an initial heat treatment. The knit-de-knit process has been modified in order to knit the knit-de-knit tubular sleeve more loosely and to obtain a crimp rate per thread line inch within a predetermined range. The knit tubular sleeve is collected in the form of a fabric roll, the internal diameter of which is controlled so that during heating the yarn crimp can develop uniformly. The yarn produced thereby can be used to produce "to size" greige fabric or garments which exhibit better snag or pick resistance than such fabrics or garments produced from conventional greige yarn. These fabrics or garments can thereafter be subjected to normal finishing procedures.

Abstract: A weave-de-weave process in which a plurality of weft loops are fluidly injected from opposite sides and normal to a plurality of warp yarns to form a composite tape. The tape is deweaved after the warp is space dyed by splitting the interior of the tape to expose the looped ends of the weft.

Abstract: A suede woven fabric comprises a warp yarn selected from the group consisting of polyester textured yarn, polyester filament yarn and polyester spun yarn, and a weft yarn of polyester island filaments whose mean thicknesses in denier are within the range from 0.05 to 0.50 and whose degree of variation of thickness is 15 to 60%; wherein a portion of said island filaments on at least one surface of the fabric is raised to form piles of individual island monofilaments whose mean lengths are from 0.5 to 4.0mm; wherein the number of floating points on said weft yarn, whose number of floats in within the range of 3 to 11, is 100 to 500/cm.sup.2 of woven fabric, and wherein the relation between the shear stiffness G.sub.0.5 at a shear angle of 0.5.degree. and the stiffness G.sub.5 at a shear angle of 5.degree., represented by G.sub.5 /G.sub.0.5, is 1.5 to 15.

Abstract: A deweaving apparatus for deweaving a fabric tape by separating and removing a weft filling yarn from a plurality of warp yarns. Control means are provided for sensing breakage of the warp yarns and weft yarn, as well as knots, splices and tangles in the tape, and in response to any such condition in the tape, stops the operation of the apparatus. Along with these means of automating the deweaving process, and greatly reducing operator attention required, a special divergence guide is fitted which accelerates loosening of the weft yarn over a very short path, thereby providing significant reduction in floor space required for the deweaving process.

Abstract: A roll of knit tubing, which has been knit into a tubular shaped prefabric in the first stage of a knit/deknit process, is presented successively to one or more dyeing stations while in a rolled or coiled package. Dyestuff is applied to the roll at selected positions on at least one side surface thereof in such amounts as to form regions of dye which spread in all directions through a plurality of convolute layers. The dye and stitch are then simultaneously heat set in an autoclave and the tube deknitted according to conventional practices to provide a textured yarn having random color variations therein.

Abstract: A method and apparatus for separating and winding pre-treated yarn, for example, tire cord, the method comprising two stages. In a first stage, a coated and heat-set fabric, constituted of longitudinally running warp cords and laterally running picks interlaced with the warp cords, is subdivided into a plurality of elongate tapes, each tape having a lesser number of warp cords than the fabric and picks of reduced linear extent. The tapes are then wound into respective packages. In the second stage, the tapes are unwound and divided each into a plurality of independent warp cords free from the picks. The warp cords are then wound into respective packages.

Abstract: The process of reducing dust particles formed in the fibrillation of tape yarns of synthetic material by applying a sufficient amount of heat to the fibrillated tape yarn to cause said synthetic dust particles to fuse into said tape yarn.

Abstract: The snag resistant leg portion of this hosiery article is knit of a composite self-crimping yarn including a series of mechanical crimps imparted thereto prior to knitting, and a series of crimps imparted to the composite yarn by development of the latent crimp in the composite yarn after knitting. The hosiery article knit of the composite self-comprising yarn having both types of crimp therein has much greater snag or pick resistance than either a hosiery article knit of the same type of composite yarn but including only the crimps imparted by development of the latent crimp in the yarn, or a hosiery article knit of yarn having mechanical crimp only. The knitting of a mechanically crimped composite yarn also produces a normal size greige hosiery article blank which may be processed in the usual manner to produce the finished hosiery article.

Abstract: One or more containers of dye liquor under pressure are connected by a supply line carrying dye liquor from each container to a dye fixture on which are successively positioned rolls of knit tubular fabric which is to be deknit subsequently to form textured yarn. A plurality of generally parallel, spaced tubular elements having spaced dye outlet openings therein are so arranged to form a horizontal support surface with the dye openings facing upwardly toward the exposed side of the knit tubing roll. Dye liquor from each container is carried through one of the supply lines into a corresponding header or manifold. The tubular elements are so arranged to be connected to one of the headers. A control valve in the supply lines is selectively activated to cause a surge of pressure in the tubular elements so that a plurality of spaced jets of dye liquor are emitted through the openings onto or into the adjacent side surface of a knit tubing roll positioned on or near the upper surface.

Abstract: Synthetic continuous filament yarn is woven with a sacrificial filling and thus formed into a prefabric, selected portions of the prefabric are dyed, the prefabric is optionally crimped either before or after dyeing, the prefabric is immersed into a dilute solution which, when concentrated will destroy the sacrificial filling, and the prefabric is then conducted through a heating and drying operation, boiling off the water and concentrating the solution, then substantially completely destroying the sacrificial filling and freeing the warp yarns as a free warp of intermittently colored yarns.

Abstract: The placing of a plurality of yarns into a woven fabric form of a type where the filling yarn may be easily unwoven so as to treat the warp yarns either by means of a color, bulking, or setting into a kinked effect or all of them and then unweaving the woven fabric to provide a plurality of similarly treated yarns for reworking into various forms such as fabrics.