Abstract: A method of winding an elastomeric yarn, such as spandex, onto a spool includes the steps of providing a spool; providing an elastomeric yarn; rotating the spool at a speed to define a spool rotation speed; moving the yarn traversely with respect to the spool in an alternating to and fro manner to define a traverse frequency; winding the yarn onto the spool; controlling the ratio of the spool rotation speed to the traverse frequency to define a wind ratio during the winding of the yarn onto the spool; and decreasing the traverse speed as the yarn is wound onto the spool in an inverse proportion to an amount of yarn that has been wound. The winding of the yarn onto the spool forms a yarn cake on the spool. The traverse speed may be decreased in inverse proportion to a diameter of the yarn cake. The method may further include the step of shifting the yarn by a pitch for each rotation of the spool.

Abstract: The invention concerns an improved yarn package and a method winding a package of high Young's modulus yarn. The package has a low normalized standard deviation in unwinding tension and hence is very suitable for converting into a range of yarn constructions and particularly medical products.

Abstract: A canister for removable attachment to a dispenser is formed as a hollow shell defining a cavity into which wet or dry paper can be fitted and removed from the canister through a dispensing opening therein. The shell is formed with a part-cylindrical shape and has a outwardly projecting rim at its bottom for detachable mounting on the dispenser.

Abstract: This present invention relates to a process for winding tape to prevent or reduce telescoping of the tape (e.g., dental tape) as it is wound onto a bobbin spool. Dispensers comprising such bobbins are also discussed herein.

Abstract: A system and method for producing a spool having a length of tubular fabric wound thereupon is disclosed, the tubular fabric being substantially spirally wound upon a core with consecutive windings of the extended length tubular fabric being located close adjacent each other, and with consecutive rows of the extended length tubular fabric overlaying each other on the hollow core. The winding operation simultaneously controls both the lateral position at which the tubular fabric is wound onto the core and the rotation of the core to achieve the tight and highly compact winding operation, with the speed of the winding operation being controlled according to the amount of the tubular fabric which is available at any given time. The tubular fabric is suitable for use in the manufacture of paint roller covers.

Abstract: It is an object of the present invention to provide a package in an optimal form obtained by winding a carbon fiber bundle having a fineness of 25,000 to 35,000 deniers, which has a high wound density and is less apt to become loose, and a method for producing the same. The present invention is a carbon fiber package obtained by winding a carbon fiber bundle having a fineness of 25,000 to 35,000 deniers on a bobbin in a square-end type, wherein the width per unit fineness of the carbon fiber bundle is in the range of 0.30×10?3 to 0.63×10?3 mm/denier, the traverse angle in the beginning of winding is in the range of 13 to 14°, the traverse angle in the end of winding is 3° or larger, and the fractional portion W0 of the winding ratio W is in the range of 0.07 to 0.08.

Abstract: A system and method for producing a spool having a continuous fabric strip is disclosed which produces an extended length fabric strip made from a plurality of seamed standard lengths of the fabric, the extended length fabric strip being substantially spirally wound upon a hollow core with consecutive windings of the extended length fabric strip being located close adjacent each other, and with consecutive rows of the extended length fabric strip overlaying each other on the hollow core. In a first embodiment, the standard length fabric strips are joined together at their respective contiguous ends using a small strip of heat-activated seaming tape. In a second embodiment, the standard length fabric strips are stitched together at their respective contiguous ends using thread.

Abstract: An overend take-off crosswound bobbin and a method for its production are designed in such a way that the density of the finished crosswound bobbin is increased and the run-off characteristics during further processing are optimized. For this purpose, in one variant parallel windings are introduced at intervals. In another variant, when the bobbin diameter is small the yarn is wound on at a smaller pitch angle than for a larger diameter. Furthermore, a traversing stroke which is reduced by comparison with the bobbin width is displaced along the bobbin width.

Abstract: A method of manufacturing paint roller covers is disclosed in which the paint roller covers are manufactured from a seamless, tubular fabric sleeve knitted in a pile side-in manner and including at least one of a backing material and a pile made, at least in part, from a low melt fiber or yarn component. The seamless, tubular fabric sleeve is inverted to a pile side-out configuration, placed onto a cylindrical member, and heat is applied to cause the low melt fiber or yarn in the backing and/or looped ends of the pile to be activated and to closely conform to the size of the cylindrical member, thereby causing the melted and fused together, re-hardened low melt component of the seamless, tubular fabric sleeve to remain in a cylindrical configuration, forming an integrally formed core member.

Abstract: An overend take-off crosswound bobbin and a method for its production are designed in such a way that the density of the finished crosswound bobbin is increased and the run-off characteristics during further processing are optimized. For this purpose, in one variant parallel windings are introduced at intervals. In another variant, when the bobbin diameter is small the yarn is wound on at a smaller pitch angle than for a larger diameter. Furthermore, a traversing stroke which is reduced by comparison with the bobbin width is displaced along the bobbin width.

Abstract: Apparatus and process for winding filamentary material in a figure 8 configuration including a rotatable spindle for retaining a mandrel upon which the filamentary material is wound; a traverse mechanism for controlling the laying of wound coils on the mandrel; and controlling the advance of the wound layers on the mandrel in accordance with the rotation of the spindle and the movement of the traverse mechanism to vary the angular displacement of the wound coil so that the number of crossovers of succeeding layers of the wound coils increases as the winding process progresses, thereby increasing the density of the wound coils.

Abstract: In a cross-wound bobbin (1), the helical lines along which the yarn (4) is wound have a different inclination in adjacent layers. The winding ratios are selected such that the quantity drawn off is greater if the unwinding point is moving from the unwinding end to the bottom end, compared to the quantity drawn off if the unwinding point is moving from the bottom end to the unwinding end.

Abstract: A yarn package, provided on a yarn package holder, such as a tube, wherein the yarn is at least partly unstable, such that a variation in the yarn tension results in a rotational movement thereof. The position of the yarn in the yarn package is controlled by the direction of the rotation of the yarn. Also a method for forming a yarn package, wherein the position of the nodes is determined. An apparatus for the production of alternative twist plied yarn and for the formation of a yarn package by winding the alternate twist plied yarn on a yarn package holder, such as a tube, producing alternate twist plied yarn, guiding the alternate twist plied yarn along the longitudinal axis of the package being formed whereby the producing the alternate twist plied yarn is synchronized with the guiding the alternate twist plied yarn along the longitudinal axis of the package.

Abstract: A system and method for producing a spool having a continuous fabric strip is disclosed which produces an extended length fabric strip made from a plurality of seamed standard lengths of the fabric, the extended length fabric strip being substantially spirally wound upon a hollow core with consecutive windings of the extended length fabric strip being located close adjacent each other, and with consecutive rows of the extended length fabric strip overlaying each other on the hollow core. In a first embodiment, the standard length fabric strips are joined together at their respective contiguous ends using a small strip of heat-activated seaming tape. In a second embodiment, the standard length fabric strips are stitched together at their respective contiguous ends using thread.

Abstract: The invention relates to a method for winding pre-oriented, non-crystalline polyester filaments onto a spool at a winding speed of at least 4,200 m/min, in which the wound filament is wound over the width of the spool by means of a flying traverse arm and is turned by a driven sensing roller with an applied pressure between 8 and 18 kg on the circumference of a spool placed on a driven spool-locating pin. The filaments for winding are introduced to the traverse thread guide at a thread tension of between 0.03 cN/dtex and 0.20 cN/dtex. The sensing roller is driven at an overspeed of preferably between 0.3 and 1.2%, in comparison with the spool circumferential speed. The thread laying angle is set between 3.5° and 7.5° by means of the spool travel. The above method permits a good spool formation even at high spooling speeds.

Abstract: A roll of knitted pile fabric is disclosed including an extended length fabric strip made from a plurality of seamed standard lengths of the fabric, the extended length fabric strip being substantially spirally wound upon a hollow core with consecutive windings of the extended length fabric strip being located close adjacent each other, and with consecutive rows of the extended length fabric strip overlaying each other on the hollow core. In the preferred embodiment, the standard length fabric strips are joined together at their respective contiguous ends using a small strip of heat-activated seaming tape. The extended length fabric strip is suitable for use in the manufacture of paint roller covers.

Abstract: A system and method for producing a spool having a continuous fabric strip is disclosed which produces an extended length fabric strip made from a plurality of seamed standard lengths of the fabric, the extended length fabric strip being substantially spirally wound upon a hollow core with consecutive windings of the extended length fabric strip being located close adjacent each other, and with consecutive rows of the extended length fabric strip overlaying each other on the hollow core. In a first embodiment, the standard length fabric strips are joined together at their respective contiguous ends using a small strip of heat-activated seaming tape. In a second embodiment, the standard length fabric strips are stitched together at their respective contiguous ends using thread.

Abstract: A method for forming the wound package of cylindrical cheeses on rotor spinning machines, wherein a crossing angle ?M in a central zone of the bobbin traverse is less than 28° and a crossing angle ?R in the end zones located adjacent the ends of the wound package is increased in respect to the central zone. The cylindrical cheeses thereby produced are distinguished by great running lengths, solid structure, good density distribution, and excellent unwinding properties.

Abstract: A method for forming the wound package of a conical cheese on rotor spinning machines, wherein a crossing angle ?M in a central zone of the bobbin traverse is less than 28° and a crossing angle ?R in the end zones located adjacent the ends of the wound package is increased in respect to the central zone. The cylindrical cheeses thereby produced are distinguished by long running lengths, solid structure, good density distribution and excellent unwinding properties.

Abstract: An apparatus and method is disclosed for winding a web about a central axis and a rotating mandrel to form a roll. A rolled web product with an alternating winding pattern may be manufactured. A feeding mechanism provides a running web to be wound into a roll. A retainer assembly may be configured for holding the web as it is wound upon the rotating mandrel. The retainer assembly may be configured to accommodate oscillating movement of the rotating mandrel between a clockwise and a counterclockwise direction. The web may be placed upon a roll by winding in one direction and then back again in a second direction repeatedly to form a roll. Retaining means, such as paddles, may be actuated from an active position in contact with the web to a resting position removed from the roll. Paddles may serve to hold the web upon the outer surface of the roll at the time in which the rotating mandrel is changing rotational direction.

Abstract: A precision method is defined for identifying defective sections of a spoolable material for removal. Defective sections are noted during manufacture and the spool containing the material is subsequently unwound to allow removal of the defective sections. The invention uses rotation data corresponding to the location on the spool where the fiber contains defects. A process controller records rotational positioning data from the take-up spool during manufacturing and uses the information to locate the defect when unwinding the spool. In addition, the pitch of winding the fiber onto the spool may be altered during manufacturing to indicate the beginning and end of a defective section. In this instance, the defective portion of the fiber can be determined during unwinding by monitoring the pitch width of the material. Finally, an algorithm for defining cut out bands adjacent to the defective sections aid in ensuring that no remaining defective fiber remains.

Abstract: A system and method for producing a spool having a continuous fabric strip is disclosed which produces an extended length fabric strip made from a plurality of seamed standard lengths of the fabric, the extended length fabric strip being spirally wound upon a hollow core with consecutive windings of the extended length fabric strip being located close adjacent each other, and with consecutive rows of the extended length fabric strip overlaying each other on the hollow core. In the preferred embodiment, the standard length fabric strips are joined together at their respective contiguous ends using a small strip of heat-activated seaming tape.

Abstract: The object of the present invention is to allow the reliable identification of the quality level of the winding package based on the yarn quality such as the yarn winding tension or the twisting density when manufacturing a winding package. According to the draw texturing machine for winding while traversing the false-twist textured yarn Y unwound from the supply yarn package and forming a winding package 7 of taper end form, a tension sensor 20 for detecting the tension of the yarn Y to be processed into a winding package 7, and a quality level judging means 30 for judging the quality level of the winding package 7 based on the detected tension information, are provided.

Abstract: A package of material for unwinding from a flush end. The package of material includes an elongated winding member to receive a continuous strand of material substantially normal to an axis of the elongated winding member. The continuous strand of material wound about the elongated winding member substantially covers at least one of two ends of the winding member to define a flush end of the package of material. The covered end of the winding member does not protrude beyond the continuous strand of material wound on the winding member. The continuous strand of material is to be unwound over the flush end in a substantially parallel misaligned manner relative to the axis of the elongated winding member. The continuous strand of material being unwound from the elongated winding member is free of obstruction from the covered end of the winding member.

Abstract: A system and method for producing a spool having a continuous fabric strip is disclosed which produces an extended length fabric strip made from a plurality of seamed standard lengths of the fabric, the extended length fabric strip being spirally wound upon a hollow core with consecutive windings of the extended length fabric strip being located close adjacent each other, and with consecutive rows of the extended length fabric strip overlaying each other on the hollow core. In the preferred embodiment, the standard length fabric strips are joined together at their respective contiguous ends using a small strip of heat-activated seaming tape.

Abstract: A package of material for unwinding from a flush end. The package of material includes an elongated winding member to receive a continuous strand of material substantially normal to an axis of the elongated winding member. The continuous strand of material wound about the elongated winding member substantially covers at least one of two ends of the winding member to define a flush end of the package of material. The covered end of the winding member does not protrude beyond the continuous strand of material wound on the winding member. The continuous strand of material is to be unwound over the flush end in a substantially parallel misaligned manner relative to the axis of the elongated winding member. The continuous strand of material being unwound from the elongated winding member is free of obstruction from the covered end of the winding member.

Abstract: A device for holding and dispensing moistened tissue from a roll includes a housing having a cylindrical wall, a fixed end wall and an opposite removable end wall to allow placement of the tissue roll on an integral tubular dowel in the housing. A hinged door moves between a normally closed, sealed position and an open position to facilitate removal of individual sheets of the moistened tissue through an access opening. Pegs extending outwardly from the opposite end walls are keyed to fit within congruently configured recesses of a holder for securing the housing to the holder without rotating. An ejection control urges one of the pegs inwardly against a spring to release the housing from the holder to facilitate refilling of tissue when needed. In one embodiment, the holder accommodates both a roll of dry tissue and a roll of moistened tissue.

Abstract: A method for producing a cheese, wherein the cheese rotates around its longitudinal axis and the yarn is subjected to a cross-winding movement while being fed to the cheese and wound thereon, and having a crossing angle, a winding angle and a placement distance associated therewith. The method including the steps of controlling the crossing angle and the winding ratio as a function of the cheese diameter during the winding process while controlling the placement distance so that it increases in conjunction with an increasing cheese diameter thereby preventing deformations and improving the production of cheeses. A cheese produced in accordance with the method of the present invention offers advantages for stacking and during transport.

Abstract: Method for winding a fiber element onto a support. The fiber element having at least two longitudinal portions (Pi) with different characteristics. The method including the steps of supplying the fiber element to the support and associating with each longitudinal portion a respective value of the winding pitch (pi) which is different from the values associated with the portions adjacent thereto. The winding pitch associated with each portion being modulated in accordance with a periodic function.

Abstract: A method for producing a cheese, wherein the cheese rotates around its longitudinal axis and the yarn is subjected to a cross-winding movement while being fed to the cheese and wound thereon, and having a crossing angle, a winding angle and a placement distance associated therewith. The method including the steps of controlling the crossing angle and the winding ratio as a function of the cheese diameter during the winding process while controlling the placement distance so that it increases in conjunction with an increasing cheese diameter thereby preventing deformations and improving the production of cheeses. A cheese produced in accordance with the method of the present invention offers advantages for stacking and during transport.

Abstract: By using carbon fibers having a fineness of 25,000 deniers or more, the present invention provides a carbon fiber package including a cheese winding package or a coreless package in which an outside diameter of the package, a diameter of a bobbin or an inside diameter of the package, and a winding width are regulated in the specific ranges, a square-end type package in which a yarn width per fineness, wind angles at the start of winding and at the end of winding, and shifting of the yarn are regulated in the specific ranges, and a carbon fiber packed member in which an average bulk density is regulated in a specific range. Those carbon fiber packages and the carbon fiber packed member solve troubles and inconveniences during use, and also packages which have a high winding density and which do not break easily can be obtained.

Abstract: A process for preparing a spandex supply package with minimal package relaxation variations along the length of spandex utilizing precalculated variable winding speeds for different segments of the package, calculated from package relaxation values of a reference spandex supply package, and uniform supply packages prepared by this process, are provided.

Abstract: Cored wire is spirally wound on a storage reel with fixed space between each spiral in a given layer. Alternate layers are wound across the preceding layer in the same manner until the reel is full.

Abstract: An apparatus is provided for forming a cylindrical package of wound strand having a radially outer surface with first and second edges and a central portion therebetween. The apparatus includes a rotatable collet for receiving the strand and winding the strand to build a package. A guide is mounted for reciprocation from edge to edge of the package to lay the strand in a helical pattern on the package surface as the package rotates. A roller bail mounted for contacting the surface as the package is being built for holding the strand in place on the package. The roller bail is divided into separate rollers with each roller contacting the package surface at one of the edges and not contacting the package surface at the central portion.

Abstract: A method of collecting strand includes rotating a collet to wind the strand into a package, traversing the strand from end to end of the package so that the strand is wound in a helical pattern on the package, contacting the package with a roller bail at edge portions at each end of the package, pressing the package with the roller bails, thereby causing the strand to flatten as it is wound in the edge portions to create a strand having periodically occurring flat spots, and controlling the flattening of the strand by controlling the pressure of the roller bails on the package. The flattening of the strand can also be controlled by controlling speed of the traverse of the strand.

Abstract: A self supporting, helically wound package of yarn suitable for being payed out by withdrawing the yarn without collapse of the package is disclosed. The yarn comprises a strand of individual filaments, the strand having a primary cross-sectional shape and periodic flat spots with a flat cross-sectional shape which is more elongated than the primary cross-sectional shape. The package has edge portions positioned axially at the ends of the package, and the flat spots are positioned in the edge portions of the package.

Abstract: A process for winding a fiber strand about a bobbin to form a wound package includes: (a) winding a fiber strand about a portion of a bobbin supported upon a rotatable collector of a winder to form a primary layer of a wound package. The primary layer has an overall length, an upper portion and a lower portion. Each of the upper portion and lower portion have a length which is less than the overall length. The primary layer has a plurality of sublayers, each of the plurality of sublayers having a plurality of layers. Each of the plurality of layers of the sublayers is successively wound upon a preceding layer and has a length which is less than the preceding layer. Each of the plurality of layers of the sublayers has an outer layer having a length which corresponds generally to the length of the lower portion, such that the primary layer is formed. A secondary layer is formed thereon which includes a plurality of layers upon the primary layer.

Abstract: A spool is produced by winding a filament, particularly an optical fiber, onto a bobbin by forming a first layer wound in a helical pattern, forming a transition at a predetermined angle from each successive odd layer to the following even layer and creating starts in each even layer at the transition point from the preceding, odd layer. In each odd layer, except the first layer, two cross-over lines at 180.degree. from one another lie directly over those of the preceding, even layer.

Abstract: An inside fiber optic payout system uses winding and packaging techniques th an inner stabilizing tube to ensure reliable cable payout. Stiff, elastic cable is rapidly non-precision wound onto a collapsible core spool at a preferred winding pitch. Stand-off attachments are installed over the outer cable layer between opposed spool flanges to support the cable pack when the collapsible core is removed. Duct tape is wrapped around the stand-offs and the outer cable layers to assist in keeping the cable pack stable (without collapsing) even up to its last few layers. The stand-offs also prevent the tape from being drawn out as the final layers of cable are dispensed. A shroud is installed over the tape and stand-offs. Payout preparation includes removing the spool's collapsible core leaving a central aperture in at least one flange of the spool. A circular payout guide is placed over this aperture and a rubber diaphragm is attached to the guide to provide friction for payout back tension.

Abstract: A take-up apparatus for tape type non-twisted carbon fiber bundles, in which a traverse guide unit consists of an introduction guide roller disposed so that an angle .theta..sub.1 between the introduction guide roller and the axial direction of the bobbin is substantially 90.degree., a final guide roller disposed so that an angle .theta..sub.e between it and the axial direction of the bobbin is -5.degree..+-.10.degree.(i.e., -15.degree. to +5.degree.), and at least one intermediate guide roller disposed between the introduction guide roller and final guide roller so that an angle difference between an intermediate guide roller and an adjacent guide roller is not more than 45.degree.. A take-up apparatus is also disclosed for tape type non-twisted carbon fiber bundles, in which a traverse guide unit has a helically continuing curved guide surface, an initial portion, i.e.

Abstract: A method of making an optical scanner is disclosed that includes light transmitting and receiving optical fibers to illuminate and scan an image to be copied, transmitted or stored.

Abstract: A yarn build is applied to at a constant traverse length up to a limit diameter D. In order to achieve a uniform yarn draw-off tension, even with packages of large mass and correspondingly large diameter, the traverse length is thereafter reduced as the diameter increases. In the case of a conically shaped tube, the conicity of the build is also reduced which leads to improved exploitation of volume and greater package mass for a given package radius.

Abstract: A process for forming a tubular wound package suitable for use as the fibrous support for a catalytic converter is disclosed. The process involves winding two yarns on a support using two separate yarn guides to form a series of walls defining both outwardly and inwardly facing pyramids.

Abstract: In one embodiment, a process for manufacturing an optical fiber coupler of the invention utilizes a rotating drum that has a sloted portion or stacking slot for receiving multiple lengths of fiber in a stack. A support for the input ends of the fibers is in the form of a block which is secured to the surface of the drum in spaced relation with the slot. The block has a plurality of shallow, parallel spaced apart grooves in parallel alignment with the stacking slot. An end of the fiber is initially threaded preferably into the stacking slot and then sequentially located alternately in vacant grooves in the support. As the drum is rotated, a positioner operates to move the fiber transversely in the direction parallel to the drum axis so as to align the fiber in each respective one of the grooves and the slot for each rotation of the drum. The process continues until all the grooves are all occupied and the stacking slot is filled with a corresponding number of fiber lengths.

Abstract: A method and apparatus for winding yarn to produce a wound yarn package having a variable density profile. The variable density profile in the wound yarn is produced by variably tensioning the yarn during the winding process by an electrical apparatus which is responsive to a programmed control signal to provide variable tension on the yarn. The density profile thus produced is preferably a progessively variable density profile. In a preferred embodiment, the method is carried out with a precison winding machine with an electromagnetic tensioner. A controlled sequence of control signals is applied to the tensioner to provide a correspondingly varying tension on the yarn.

Abstract: A bobbin-type winder for winding a synthetic yarn at a constant speed is disclosed. The winder includes a bobbin shaft having a bobbin mounted thereon and a bobbin shaft driving apparatus, operably connected to a first inverter, for rotating the bobbin shaft. The winder further includes a traverse device for traversing the yarn supplied to the bobbin, and a contacting roll arranged such that it is movable into contact with the circumferential face of a yarn package wound on the bobbin. The contacting roll is driven via a second inverter and a rotational speed detector is provided for detecting the rotational speed of the contacting roll. A controller is electrically connected with the bobbin shaft driving apparatus and the rotational speed detector for controlling the rotational speed of the bobbin shaft in accordance with the detector rotational speed of the contacting roll.

Abstract: A yarn winding method is disclosed wherein the yarn is wound onto a supporting tubular core by a traversing yarn guide. During the initial portion of the winding process, the yarn is wound in a random wind process, and during the subsequent portion of the winding process the yarn is wound in a stepped precision wind.

Abstract: A yarn winding method and resulting yarn package are disclosed, and wherein the yarn is wound onto a supporting tubular core by a traversing yarn guide and in accordance with either a random wind or a stepped precision wind. In each case, the winding is begun with the traversing speed having a predetermined initial mean value, and the mean value is then increased from the initial mean value to a predetermined maximum mean value, and such that the maximum value is reached when a predetermined base layer having a thickness (SB) of no more than about 10% of the total yarn layer thickness (S) of the finished yarn package is produced. The predetermined maximum value may be maintained during the remainder of the winding operation, and in addition, the circumferential speed of the package may be reduced during the initial increasing of the mean value of the traversing speed, and such that the winding speed and tension of the yarn remain substantially constant.

Abstract: A center-pull fiber package is provided in which a fibrous material may be wound onto a core structure comprising a core element and an overwrap release paper. Upon removal of the center elements, an end of the fibrous material is exposed so that the package may be unwound by removing a predetermined length of the winding from the interior or center of the package.

Abstract: A package comprising a tube onto which a yarn, wire, tape of the like is wound by a precision winding characterized in that during the winding of the package the ratio formed from the speed of rotation of the package and the traverse speed of the yarn remains constant, in order to provide optimum characteristics with respect to the course of the package such as the mass distribution of the yarn of the package and with respect to yarn winding. A process for winding the yarn on the package with a constant circumferential speed and a device for performing the precision winding process is disclosed.