Abstract:
A textile material comprises a plurality of yarns, wherein the yarns contain an intimate blend of dyed polyphenylene sulfide fibers and cellulosic fibers. The dyed polyphenylene sulfide fibers comprise a disperse dye that is distributed substantially evenly across the cross-sectional area of the fibers. A method for dyeing textile materials containing polyphenylene sulfide fibers comprises the steps of (a) providing a textile material comprising yarns which contain an intimate blend of polyphenylene sulfide fibers and cellulosic fibers, (b) providing a dye liquor comprising a liquid medium and a disperse dye, (c) applying the dye liquor to the textile material, (d) heating the textile material under ambient atmosphere to a temperature sufficient to evaporate substantially all of the liquid medium from the textile material, and (e) heating the textile material under ambient atmosphere to a temperature of about 180° C. or more to fix the disperse dye to the polyphenylene sulfide fibers.
Abstract:
Disclosed is a method for fabricating a polyethersulfone nanofiber membrane with improved mechanical strength for water treatment by electrospinning. According to exemplary embodiments, the polyethersulfone nanofiber membrane possesses higher mechanical strength than conventional polyethersulfone nanofiber membranes that are susceptible to damage and limited in life when applied to water treatment processes. In addition, the polyethersulfone nanofiber membrane has high water permeability and can remove contaminants with high efficiency compared to conventional membranes for water treatment. Therefore, the polyethersulfone nanofiber membrane is suitable for use in water treatment.
Abstract:
A process for making polyarylethers provides a reaction mixture that includes a dipolar aprotic solvent for polyarylether and polyarylether forming reactants, and reacts the polyarylether-forming reactants, with removing of water with nitrogen in the absence of azeotrope forming cosolvent and optionally replacing removed amounts with dipolar aprotic solvent. The process can further include directly wet spinning the reactor solution without recovery of the polymer from the dipolar aprotic solvent through a spinneret to form hollow fibers or flat sheets suitable for membranes.
Abstract:
Described herein is a protected container employed to prevent soil erosion. The protected container is a geotextile container having a debris shield disposed thereon. The debris shield protects the integrity of the geotextile container by providing a strike barrier which has air and water flow capabilities. The debris shield is a composite fabric comprising a woven protective layer having abrasion resistance and a woven three-dimensional layer which provides impact dampening and energy dissipation.
Abstract:
An embodiment relates to an intercommunication bellows for compartments of a public transport vehicle or for a removable aircraft-access ramp, formed from a coated textile support, comprising a double-weave fabric both faces of which are coated with an elastomeric material, and to a method of connecting two compartments of a public transport vehicle comprising the attachment of an intercommunication bellows between two compartments of the vehicle that are hitched together. An embodiment also relates to a public transport vehicle comprising compartments connected together by an intercommunication bellows. According to an embodiment, the double-weave fabric coated with an elastomeric material has one or more of the following properties: stiffness; delamination resistance; tear resistance.
Abstract:
A counterband tape for use in the heat setting tunnel of a carpet yarn heat setting machine. The tape is constructed from polyphenylene sulfide yarns. The counterband tape may be formed as a single layer woven fabric with a twill weave construction. The tape also may include a herringbone pattern.
Abstract:
A method of weaving industrial textiles to a single warp platform, and textiles made thereby. The method comprises identifying optimal fabric characteristics for selected uses to determine groups of suitable fabrics; selecting a first group, identifying fabric properties for optimal characteristics, and identifying optimal properties for warp yarns to be used for all fabrics in the group; selecting a structure type and weave design for each fabric of the group; providing a loom with selected shedding options and installing warp yarns having the identified optimal properties. Thereafter, each fabric in the group can be woven without changing the warp yarns, simply by identifying properties for weft yarns to correspond with the weave design of the respective fabric, setting the loom accordingly and weaving the fabrics as required, adjusting only the weft parameters between successive fabrics, resulting in increased efficiency of manufacturing and avoiding time consuming warp changes between fabrics.
Abstract:
A textile sleeve for routing and protecting elongate members and method of construction thereof is provided. The sleeve includes an elongate wall having opposite edges extending parallel to a central axis of the sleeve. The wall is woven with warp yams extending parallel to the axis and fill yarns extending transverse to the warp yams. The warp yarns are provided as monofilament yarns to provide abrasion resistance and the fill yams are provided as both monofilament yams to provide further abrasion resistance and multifilament yams to provide increased coverage, maintain flexibility, and to maintain the warp monofilaments in their intended position.
Abstract:
A fabric for supporting a fibrous web is disclosed. The fabric has a layer that includes a plurality of weft yarns and a plurality of warp yarns interwoven with the plurality of weft yarns. The warp and weft yarns define a web-facing side and an opposite machine-facing side. The warp yarns include at least one of polyphenylene sulfide (PPS) and polyetheretherketone (PEEK). In addition, a yarn count, weave pattern, and yarn shape of the fabric are configured such that molten polymer drops are scrapable from the web-facing side leaving an upper support surface that does not blemish a fibrous web supported by the fabric.
Abstract:
A hook surface fastener excellent in the heat resistance, flame resistance, retention of hook shape, and pull-out resistance of hook engaging elements (fibers). The hook surface fastener is composed of a base fabric and the hook engaging elements formed on the base fabric. The base fabric is a woven fabric composed of warp yarns, weft yarns and fibers constituting the hook engaging elements. The warp yarns and the fibers constituting the hook engaging elements are polyphenylene sulfide fibers. The weft yarns are substantially non-twisted, paralleled yarns of polyphenylene sulfide fibers and heat-fusible fibers having a melting point or softening point each being 230° C. or lower. The polyphenylene sulfide fibers constituting the hook engaging elements have a crystal orientation of 85.0 to 90.0% and a crystallinity of 32.0 to 42.0% so that the retention of hook shape is good. The fibers constituting the hook engaging elements are anchored to the base fabric by fusion of the heat-fusible fibers. Therefore, the pull-out resistance of the hook engaging elements (fibers) is good even if a resin coat layer is substantially not provided on the back surface of the base fabric. A hook surface fastener substantially free from the resin coat layer has a good heat resistance and flame resistance.