Abstract: A slashing process for preparing warp yarns for weaving operations including the steps of sizing and/or desizing the yarns in an acoustic resonance box and separating the yarns with a leasing apparatus comprised of a set of acoustically agitated lease rods. The sizing step includes immersing the yarns in a size solution contained in an acoustic resonance box. Acoustic transducers are positioned against the exterior of the box for generating an acoustic pressure field within the size solution. Ultrasonic waves that result from the acoustic pressure field continuously agitate the size solution to effect greater mixing and more uniform application and penetration of the size onto the yarns. The sized yarns are then separated by passing the warp yarns over and under lease rods. Electroacoustic transducers generate acoustic waves along the longitudinal axis of the lease rods, creating a shearing motion on the surface of the rods for splitting the yarns.

Abstract: Hybrid yarn is produced from thermoplastic and reinforcing fibers by spreading the fibers separately to form a band and combining and homogeneously intermixing the two bands on rolls or rods. The spreading is carried out in such a way that the reinforcing fiber band will be from 20 to 100% wider than the thermoplastic fiber band. The hybrid yarn can be sized and processed into fabrics which can be molded to produce fiber composites.

Abstract: A method of and an apparatus for simultaneous sizing and drying a complete number of warps of filament yarns required for weaving of cloth. During sizing, a warp sheet having high yarn density is put to uniform arrangement state using a first slant reed and a guide roller, and the warp sheet in the uniform arrangement state passes through a sizing solution and is squeezed at high pressure. The sized yarns are separated using dividing rods and a second upright reed before preparatory drying, and separated using a third upright reed and dividing rods after the preparatory drying, thereby the sized yarns in separated state in vertical and lateral directions pass through hot air during the preparatory drying. Yarns separated after the preparatory drying are put to uniform arrangement state using a fourth slant reed and a guide roller, and the yarns in the uniform arrangement state are laid over heating cylinders during finishing drying.

Abstract: The ends of warp yarns in a sheet form are treated at the end of a sizing process in preparation for a subsequent rewinding process. In the sizing process, the warp yarns are threaded through a reed with at least two warp yarns in each reed dent in vertically spaced relation. The at least two warp yarns are threaded through one dent in a reed in the rewinding process. Heretofore, it has been tedious and time-consuming to thread the warp yarns through the reeds since the warp yarns in one reed dent cannot be distinguished from those in other reed dents in the sizing process. In the rewinding process, a spacer such as a rod is inserted between vertically divided sheets of the warp yarns to prevent snarling. Since the warp yarns cannot be distinguished from reed dent to reed dent, it has been difficult to insert the spacer.

Abstract: Device for forming a thread crossing or lease in a textile machine, including a first comb being disposed in the path of the threads and having laminations defining interstices therebetween, a second comb being disposed obliquely relative to the first comb and having laminations defining interstices therebetween and tips on the laminations, the tips of the laminations of the second comb being engageable with equal distribution into the interstices of the first comb, every other interstice of the second comb being partially filled in providing alternately long and short interstices being open at the top thereof, and the combs being slideable relative to each other when engaged, and a method of operating the device.

Abstract: A method and apparatus are disclosed for use in the process of treating yarns which includes passing the yarns through a slashing machine (10) and applying a sizing solution to the yarns (20) arranged in side-by-side sheet form, (W), in preparation for weaving on a loom followed by drying the yarns, wherein the apparatus comprises a lease rod (A) for splitting yarns into sheets which includes a porous outer layer (32) and yarn contacting surface (34) having a capacity to sweat a liquid lubricant at a sufficiently precise rate as to control the amount of lubricant wetting the yarn contacting surface. Sticking of sizing material to the yarn contacting surface as occurs with wet yarns coated with concentrated sizing solutions is avoided without weakening the size coatings on the yarns.

Abstract: A method of and an apparatus for simultaneously sizing a large number of long fiber yarns, in which number of warper's beams having a sufficient number of warps for weaving of cloth is divided into 2 or 3 sets of beams according to the total number of warps and the yarn diameter so that yarns in each divided set are placed in the width equal to that of said weaver's beam having a yarn pitch of over 3 times that of the yarn diameter, each warp sheet from divided warper's beams is sized and dried passing over one of the sizing and drying paths having a same distance of 2 or 3 systems placed in vertical levels under a same amount of draft, and then each yarn which is sized and dried in each system is wound onto a weaver's beam over a path of the same distance with a same amount of draft.

Abstract: A method of and an apparatus for simultaneously sizing a large number of long fiber yarns, in which a number of warper's beams having a sufficient number of warps for weaving of cloth is divided into 2 or 3 sets of beams according to the total number of warps and the yarn diameter so that yarns in each divided set are placed in the width equal to that of said weaver's beam having a yarn pitch of over 3 times that of the yarn diameter, each warp sheet from divided warper's beams is sized and dried, passing over one of the sizing and drying paths having a same distance of 2 or 3 systems placed in vertical levels under a same amount of draft, and then each yarn which is sized and dried in each system is wound onto a weaver's beam over a path of same distance with the same amount of draft.