Abstract: In a process for manufacturing to a tape with specific pattern interval, there are utilized at least two kinds of ultraviolet-fluorescent yarns with different chromophore, which is spun out of dope kneaded with a fluorescent material. When ultraviolet-fluorescent yarns and colorless yarns are wound around a warp beam or drum with or without infrared-fluorescent yarns, the ultraviolet-fluorescent yarns are arranged repeatedly in specific color order in the traverse direction during the warping operation. In the process, these yarns as the warp are also woven into a double-wide textile with a wide loom.

Abstract: A method of making a sheared wool, deep pile fabric that closely resembles natural sheepskin fleece that includes forming a length of wool pile fabric having natural wool fibers on one side and a scrim on an opposing side and finishing the wool pile fabric as natural shearling. The finishing process includes polishing the wool fiber side of the pile fabric by guiding the length of pile fabric over one or more heated first polishing rolls, applying a sheepskin conditioning solution to the wool fiber side of the pile fabric, further polishing the wool fiber side of the pile fabric by guiding the fabric a plurality of times over one or more second heated polishing rolls, and cutting the wool fibers to a designated length.

Abstract: A method for producing an undrawn polyglycolic acid-based resin yarn, including: a discharge step of discharging a molten polyglycolic acid-based resin through a spinneret, to thereby form a fibrous polyglycolic acid-based resin; a keeping step of keeping the fibrous polyglycolic acid-based resin for 0.0012 seconds or more after the discharge in an atmosphere having a temperature of not lower than 110.5° C. but not higher than a melting point of the polyglycolic acid-based resin; and a cooling step of cooling the fibrous polyglycolic acid-based resin obtained in the keeping step, to thereby obtain an undrawn polyglycolic acid-based resin yarn.

Abstract: A pile layer is formed of a plurality of bundles, which are partially opened up into individual fibers and which contain carbon fibers and foreign substances. The carbon fibers have at least a mass fraction of 70% of the total mass of the pile layer and the foreign substances take up no more than 30%, but not less than 2%. The foreign substances are obtained from a recycling process.

Abstract: Spun-dyed aramid fibers, wherein spun-dyeing was performed with a completely organic pigment exhibiting the chemical structure of formula (I): wherein, independently from one another, R1 represents a substituent of formula Xa or a substituent of formula Xb: wherein Xa is linked via the group NH having two bonds in the structure represented by Xa, whilst Xb is linked via the carbon atom, which is in a para relationship with the NH2-group of Xb; and R2 represents H or NH2. The spun-dyed aramid fibers exhibit constant colouristic properties and wash proof properties.

Abstract: The invention provides a spun yarn comprising recycled carbon fibre, and a method for the production thereof. The recycled carbon fibre comprises discontinuous carbon fibre and, optionally, continuous carbon fibre, and may be recycled from various sources, such as end-of- life waste and manufacturing waste. The yarn which is produced shows the required degree of strength and durability, and can be used in all conventional composite manufacturing operations where virgin yarn is currently employed, such as woven fabric manufacture, unidirectional fabric manufacture, filament winding, pultrusion and the like.

Abstract: A seed cotton dryer comprises an array of electromagnetic wave energy generators in a cotton gin, a cotton picker/stripper. An appropriate amount of energy is used to evaporate a considerable amount of moisture in the seed cotton without producing enough energy to pop the cotton seeds. Seed cotton dried by wave energy is much easier to separate the cotton seeds and lint from leaves, stems and other plant parts. The seed cotton is preferably transported through the dryer in a conduit having flat sides which reflects the wave energy more efficiently than through a round conduit. Provisions are made to prevent arcing in the transport conduit when extraneous metal pieces are inadvertently mixed with the seed cotton. In some embodiments, heated air from a diesel engine is used to dry crops as they are being harvested.

Abstract: The present invention relates to a device and a method for providing cut-to-length rovings having a defined length from an endless roving, in particular in the aviation and aerospace sector, and also to a machine with a device of this type. The device comprises a loop shape setting arrangement, a loop bracing arrangement and a cutting arrangement. An endless roving can be braced by means of the loop bracing arrangement onto the loop shape setting arrangement, thus forming a loop which can be cut to length by means of the cutting arrangement in order to produce the cut-to-length roving.

Abstract: A method and a cutting device for the continuous cutting of fibers fed in fiber cables into fiber sections of particularly short length is disclosed. In order to avoid high friction forces between the formed knives and the fiber sections, and furthermore, to prevent excessive deforming of the fiber section during the transport between the knives, the knives are arranged at an offset to each other such that the fibers are initially cut into longer fiber sections, and into shorter fiber sections in a second step. The respective free space between the knives is increased due to the offset arrangement of the knives.

Abstract: A fiber material from the fruits of poplars, willows, composites or similar plants is suitable for use as a raw material for insulation, for the production of fiber mattresses or as a filling or padding material. The fiber material can be extracted from closed fruits with the plants being dried and/or opened using an air flow and agitated in a treatment chamber (17), whereby the fiber material (21) contained in the fruit capsules (19) is substantially separated from the other constituent parts of the fruits. Disadvantages related to the use of cotton are thereby avoided.

Abstract: Disclosed are methods and apparatus for stripping petals from cotton balls. In one embodiment, the cotton stripper includes an impacter for at least partially opening the cotton balls, a first cleaning mechanism to discard petals removed by the impacter, and a cotton separator for removing the remaining petals from the cotton balls. In one embodiment, the cotton separator includes a first large roller, which receives and traps the at least partially opened cotton balls from the first cleaning mechanism. The at least partially opened cotton balls rotate with the first large roller toward a first net. Petals on the cotton balls are stripped off by the first net. Petals removed by the first net fall toward the bottom of the cotton separator. A first small roller then removes the first stripped cotton balls from the first large roller. Processed cotton balls are then stored in an output area.

Abstract: An apparatus and method enables a synthetic fiber tow of indeterminate length passed through a break drawframe to be converted to relatively short spinnable staple length fibers in the form of sliver. During passing through the drawframe, a concentrated beam of energy, illustrated as being a laser beam is swept across the tow by a rotating mirror and in the course of doing so, effectively cuts the tow fibers where struck by the laser beam. In one embodiment the laser beam stays on while sweeping across the width of the tow and then repeats that cycle in a succeeding section of tow. In another embodiment, the laser beam is energized and deenergized as it transverses across one section of tow and in the next succeeding section of tow the laser beam is actuated in a different time cycle.

Abstract: A no-burn process for fostering growth of a mature perennial grass crop in a field. The process includes: (a) providing seed-containing heads on the grass crop; (b) removing seed from the seed-containing heads to leave a standing remnant of the grass crop in the field, the standing remnant having a top surface which is elevated above the ground; (c) leaving the standing remnant unburned; (d) applying a layer of nitrogen beneath the top surface of the unburned standing remnant within about three months of removing the seed from the seed-containing heads; and (e) depositing a substantially uniform layer of light reflecting material beneath the top surface of the unburned standing remnant throughout the field within about three months of removing the seed from the seed-containing heads.

Abstract: Chopped fiber strands are produced by (1) wetting a continuous unsized fiber tow with a volatile sizing agent, (2) chopping the wet fiber tow into predetermined lengths, and (3) exposing the chopped fibers to conditions of temperature and pressure that remove the sizing agent by volatilizing but do not cause any structural changes in the fiber. Bundles of the unsized fibers have a high bulk density and are easily dispersible in air or other media to individual filaments or groups of small numbers of individual filaments. The process is especially useful for producing high bulk density packages of polyacrylonitrile-based carbon fibers.

Abstract: An apparatus and method are described for the manufacture of cut looped end crimp yarns in which the yarn is stably supported during the loop cutting operation.

Abstract: A process for feeding fibres towards the fixed and mobile knives of a fibre cutter, such as a flock cutter, is provided which includes preparing a mattress of fibres aligned in a direction which is substantially perpendicular to the vertical plane of the knife so that the mattress of fibres takes the form of a band. The band is conveyed in a step-by-step manner towards the knives while supporting the band adjacent the fixed knife so that its lower face and its lateral side faces are supported by planer support surfaces having a dimension significant in relation to the length of sections of fibres being cut. The step-by-step conveying is effected by bringing the band to a temporary standstill in relation to the support surfaces as the fibres are advanced towards the cutter.

Abstract: Disclosed are apparatus and methods for converting tow into sliver including cutter rolls for cutting fiber to length, a collector pan for passing the cut fiber from the cutting rolls to a drafting section and a pin roll in the drafting section for combing and debonding the fiber. The collector pan is shaped to dispose the opposite marginal edges of the cut fiber web in registration with the main body of the web to ensure proper presentation of the cut tow fibers to the drafting section. The pin roll in the drafting section includes a plurality of projections having leading and trailing edges terminating in a tip. Each leading edge is angled to enter the tow web prior to entry of the associated tip. The arrangement of the converter affords high weight delivery of combed and debonded fiber with minimal defects.

Abstract: A process for the guidance of rapidly running threads by means of a manipulator, in which the threads are drawn by the mechanical drawing-in device into the interior of the manipulator and are comminuted there by means of a cutting device, and the thread portions are ejected through an outlet orifice. The drawing-in and cutting devices of the manipulator preferably comprise a knife roller rotating in a narrow housing.

Abstract: A staple fiber cutting machine has a cutter supporting member which suppo a plurality of cutters and is driven in rotation by a drive, a gap formed so that a cable can be introduced into the gap, and a pressing member which is driven in rotation during idle running of the machine, prior to introduction of a cable into the gap. The machine works so that not only the cutter supporting member rotates, but also the pressing member rotates during the starting phase or the idle running of the machine.

Abstract: In a cutting machine for a synthetic filament tow the filament tow 3 before passing between the cutting rolls 1/2 is traversed laterally to and fro. The present invention teaches, in which manner the traversing movement of the tow guide 5, moved to and fro using a grooved drum 10, is to be effected for obtaining a linear, i.e. optimum, fibre length diagram of the cut fibres. In particular, the mathematic formula for the shape of the guide groove 9, as unrolled in a plane, of the grooved drum 10 is given.

Abstract: The present invention concerns a method and an apparatus for producing a draftable staple fibre sliver (12) from a strand (12) of endless filaments, which is united and condensed for further processing. According to the invention the zone of the united and condensed sliver, from which, due to the cutting process, fibre points stick away inclined and pointed towards the front and outside, is inserted into the inside of the sliver.In this manner the detrimental effects, caused by the fibre points sticking out, are eliminated. Particularly the defective points in the end product produced, caused by these fibre points, are eliminated, fly waste generation in the processing room is reduced and, owing to the reduction of the danger of clogging of the fibre sliver guiding funnels, the operational reliability of the subsequent processing machines is improved.

Abstract: Textile length multifilament bundles of coated and bonded glass fibers are fed into the fiber inlet of a momentum exchange aspirator having a high pressure propelling air source inlet providing propelling air at a velocity generally equal to the velocity of sound to cause flow of air to carry the bundles into the aspirator fiber inlet and produce a turbulent flow zone which destroys the interfiber bonds, without destroying the protective coating on the fibers and with minimum fiber breakage, to form a high velocity stream of discretely separated textile length coated glass fibers at the aspirator outlet.

Abstract: The apparatus includes an air temperature and humidity control chamber, a chopper room, strand choppers in the chopper room, a first controllable pitch fan having an inlet connected to the temperature and humidity control chamber and an outlet connected to the chopper room, a forming hood beneath the choppers, an endless conveyor chain beneath the forming hood, a chopped strand collecting chamber for collecting chopped strands which happen to pass through the conveyor chain, a suction chamber disposed beneath an upper flight of the conveyor chain and partitioned into a plurality of sections each having an inlet communicating with the forming hood through the conveyor chain and being provided with nozzle-forming downstream convergent baffle plates therein and an outlet communicating with the chopped strand collecting chamber through a duct having an adjustable damper therein securable in an adjusted position, a second controllable pitch fan having an inlet connected to the chopped strand collecting chamber and

Abstract: Process and apparatus for continuously cutting a tow of continuous filaments and opening the resulting fibers are described. Immediately after the tow is cut, while the fibers are still in an orderly array, they are transported to an opening device, especially garnett wires, where the fibers are opened without damage.The apparatus modifies existing tow cutting devices of the type including crown-arranged and radially oriented knives, means for winding the tow around the knife edges and means for pressing the tow against the knife edges by providing an annular fiber collector at the rear of the ring of knives for collecting the fibers while they are still oriented in the same direction and feeding the orderly array of fibers to at least one garnett wire carried on at least one rotatable cylinder located at the outlet of the fiber collector.

Abstract: A machine for cutting a travelling tow of synthetic plastic filaments to produce staple fibers has a blade carrier from which cutting blades project and have their free ends secured to a concentric surrounding ring. The facing annular surfaces of ring and carrier are shaped to resemble portions of a hollow and of a solid sphere, respectively, and together define an annular cutting channel. A tow pressing ring is arranged skew to the axis of this channel, so that it enters into the channel at one side but is spaced from and defines with the inlet to the channel a gap at the opposite side. One or the other of the carrier and ring is positively rotated. When tow is fed through the gap into the channel it forms on the carrier one or more convolutions which are progressively pressed deeper into the channel by the pressing ring until they reach and are cut by the cutting blades.

Abstract: A squirrel cage type long strand eliminator is provided intermediate the chopper and the collection region to eliminate undesirably long sections of strand from free falling discrete segments of strand as they are being formed from a continuous strand.

Abstract: A squirrel cage type long strand eliminator is provided intermediate the chopper and the collection region to eliminate undesirably long sections of strand from free falling discrete segments of strand as they are being formed from a continuous strand.

Abstract: Short lengths of uniform length are cut from a mass of non-oriented fibers by combing and periodical cutting.

Abstract: A process and apparatus for cutting textile tow into staple is disclosed. The textile tow is wound onto a textile tow support which is rotatable at a predetermined angular velocity. A plurality of moveable cutting surfaces are attached integrally to the textile tow support around its periphery to permit the tow to be wrapped in surface contact with the cutting surfaces. The tow is cut into staple by transverse or orthogonal movement of the cutting surfaces with respect to the direction of winding of the textile tow on the textile tow support. In a first embodiment of the invention, the cutting surfaces comprise knife bands which are driven by rotation of the textile tow support. In the second embodiment, the cutting surfaces comprise reciprocating knives which are driven by rotation of the textile tow support.

Abstract: Cutting hard fibrous material using a gap between cutting elements of a multiplicity of fiber thicknesses.

Abstract: A continuous in-line flock cutting process is disclosed, for making flock from tow which contains a lubricant which is detrimental to the flock and must be removed.The tow is continuously fed, heat treated and immersed in an aqueous scouring liquid, and is continuously wet-processed. The excess scouring liquid is squeezed out, the tow is rinsed with water, rinse water is squeezed out, and a finish is applied to the tow and partially squeezed out in an in-line continuous process to remove a portion of the applied finish. Thus processed, the still-wet tow is continuously cut into wet flock, the wet flock is then dried and beaten to open up and separate the individual flock particles, and screened.

Abstract: A cutter is provided for cutting rope into fibers of varying lengths. A plurality of blades are provided having cutting edges arcuately arranged and facing either inwardly or outwardly. Rope is fed against the cutting edges of the blades, forcing the rope against the cutting edges and through the spaces between them. The planes of the cutting blades diverge from one another, providing an angular blade arrangement such that the spacing between any pair of blades varies along the length of the blade. The cut fibers, having different lengths, are preferably conveyed by a fluid such as air to a collecting chamber.

Abstract: Methods of and apparatus for processing yarn in order to texturize and cut the yarn include using a fluid to direct yarn into a tube having a rotating spindle therein around which the yarn forms a wad. At least part of the fluid is exhausted from the tube and the wad is then cut and removed from the spindle.