The present invention relates to a thread guide element for a yarn monitoring and/or yarn processing unit as well as to a yarn clearer for a workstation of a textile machine with at least one thread guide element.

The present invention relates to a thread guide element for a yarn monitoring and/or yarn processing unit as well as to a yarn clearer for a workstation of a textile machine with at least one thread guide element.

A method of producing synthetic yarn having polytetrafluoroethylene (PTFE) properties is described. The method providing: applying a PTFE additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a PTFE enhanced POY having PTFE on the surface of the fibers of the PTFE enhanced POY.

A method of producing synthetic yarn having polytetrafluoroethylene (PTFE) properties is described. The method providing: applying a PTFE additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a PTFE enhanced POY having PTFE on the surface of the fibers of the PTFE enhanced POY.

Systems and methods for plasma treating fiber tows (e.g., carbon fiber tows) are disclosed. The system may be a fiber tow treatment system, including an air-plasma source configured to emit a plasma stream and a support surface spaced apart from the air-plasma source and configured to contact the plasma stream when emitted. First and second guides may be on opposing ends of the support surface and configured to align a moving fiber tow between the support surface and the air-plasma source. The method may include continuously transferring a fiber tow through a first guide, across a support surface, and through a second guide; and air-plasma treating the fiber tow as it crosses the support surface such that a deflection of the fiber tow from the air-plasma treatment is limited by the support surface. The disclosed systems/methods may reduce the damage to fiber tows during plasma treatment.

A method of preparing a fiber for use in forming a ceramic matrix composite material comprises the steps of removing a polymer coating from an outer surface of glass or ceramic fibers by providing heated and humidified gas across the glass or ceramic fibers for a period of time.

A method of preparing a fiber for use in forming a ceramic matrix composite material comprises the steps of removing a polymer coating from an outer surface of glass or ceramic fibers by providing heated and humidified gas across the glass or ceramic fibers for a period of time.

A three-dimensional thread making method using ultrasonic waves is provided. The method includes inserting a yarn into a position corresponding to an engraved pattern of a mold base between an ultrasonic wave generator and the mold base at positions adjacent to each other, applying ultrasonic waves to the yarn while the ultrasonic wave generator pressurizes the yarn, and injecting a medical anti-loosening member made in a form of the engraved pattern due to the ultrasonic waves. The medical anti-loosening member includes a medical three-dimensional thread formed to have a plurality of protrusions facing each other on both sides and a medical anti-loosening screw.

A method of manufacturing a high-strength synthetic fiber utilizing high-temperature multi-sectional drawing, two-stage high-temperature multi-sectional drawing, or multi-stage high-temperature multi-sectional drawing. The method comprises the following steps: performing, on a synthetic resin, melt spinning or melt extrusion, cooling, multi-sectional high-temperature drawing, heat setting and a fiber surface treatment, wherein the multi-sectional high-temperature drawing comprises independently adjusting temperatures at a front section and a rear section of an furnace, and the temperature at the rear section is higher than that at the front section. The temperature adjustment is performed on different locations in the furnace and according to a crystallization orientation of a fiber molecular chain, significantly increasing fiber strength. The method is widely applicable to manufacturing of various types of fibers, enhancing application performance of the fibers.

An object of the present invention is to provide a method for efficiently manufacturing a protein crimped staple from protein filaments at a low cost. A manufacturing method for a protein crimped staple according to the present invention includes: a) preparing an artificial fibroin filament containing a modified fibroin; b) cutting the artificial fibroin filament to obtain an artificial fibroin staple; and c) performing crimping by bringing the artificial fibroin filament into contact with an aqueous medium to crimp the artificial fibroin filament before the cutting or bringing the artificial fibroin staple into contact with an aqueous medium to crimp the artificial fibroin staple after the cutting.