1243 results about "Single filament" patented technology

Ballistic resistant materials having improved strength and lighter weights. More particularly, improved ballistic resistant fabrics produced from drawn, high modulus fibers having a reduced fiber diameter and improved physical strength properties, without changing other properties such as fiber chemistry, binder resin type and binder resin content. The fabrics incorporate low denier per filament monofilament fibers, low denier per filament multifilament fibers, or a combination of low denier per filament monofilament fibers and low denier per filament multifilament fibers in a specialized fabric construction to form fine fiber layers and fabrics having enhanced strength and fiber areal density without altering the fabric weight, or having reduced fabric weight without a corresponding reduction in ballistic performance.

A prosthetic knit for medical or surgical use which has a structure made of monofilament and/or multifilament yarn which is biocompatible and optionally partially bioabsorbable. According to the invention, this knit comprises a monofilament sheet forming, on one face of the knit, spiked naps which protrude perpendicularly with respect to said sheet, that is to say naps each having a substantially rectlinear body and, at the free end of this body, a head of greater width than that of this body.

An article including a woven fabric comprising warp yarns and weft yarns, wherein at least one of either the warp yarns or the weft yarns includes: (a) a corespun elastic base yarn having a denier and including staple fiber and an elastic fiber core; and (b) a separate control yarn selected from the group consisting of a single filament yarn, a multiple filament yarn, a composite yarn, and combinations thereof; having a denier greater than zero to about 0.8 times the denier of the corespun elastic base yarn; wherein the woven fabric includes (1) a ratio of corespun base yarn ends to control yarn ends of up to about 6:1; or (2) a ratio of corespun base yarn picks to control yarn picks of up to about 6:1; or (3) both a ratio of corespun base yarn ends to control yarn ends of up to about 6:1; and a ratio of corespun base yarn picks to control yarn picks of up to about 6:1.

The invention discloses a processing method for a mercerized knitted bedding fabric. The processing method mainly adopts a production technology of double-calcination single yarn, first refining and then mercerizing, and grey yarn is sequentially subjected to yarn singeing, yarn steaming, knitting, grey cloth singeing, refining, dewatering, cylinder drying, mercerizing, dyeing, dewatering, scutching, drying, printing, forming and pre-shrinking and finally is checked and stored in a cabin. The mercerized knitted bedding fabric has the advantages of high conformality, low shrinkage, wide width and the like, and can meet the requirement on the knitted bedding fabric; compared with a woven fabric, the mercerized knitted bedding fabric has higher elasticity, water absorption and air permeability, is more smooth and fine in handfeel, and has better comfortableness.

The invention relates to a kind of effective electric fibre. It contains: 5-9 %(w) electric charcoal parent-particle, 92-95%(w) PET polyester powder, and the electric parent-particle terylene, nitrile, or cotton fiber contains: 1-6%(w) selection-CT-928, 0/5-2%(w) 1010 and 0.5-2%(w) PLTP (antioxidant), 5-20%(w) dispersant-polyethene cere 2000 1-5%(w) magnesium stearic acid. The preparation method is: first, use electric charcoal as the electric component, and separate it evenly is polyester carrier by enwrap and disperse. Secondly produce the parent-particle by high-speed whisking, mix and extrude. Finally, use twin-screw to the filature and then obtain the electric fibre which has good peparative in ployester carrier. And the quality of spin is good. The invention has a low cost, high filature speed and good electric; the conductivity of one thread is 10000-1000000 ohm/cm.

A pressure vessel (2) for the storage of fluid has a core (10) made of metal or polymer and is wrapped either completely or partially from outside with a high strength fibers (21, 22) for reinforcement wherein one of the reinforcing fibers is a metal wire (21) of a single filament or cables of multi filaments having strength from 2000 MPa to 6000 MPa. The wire has a plastic ductility of over 20% in reduction in area (RA) at tensile fracture. The metal wire (21) is made of steel or nickel or titanium or their respective alloys. The core (10) of the vessel (2) is first wrapped with a resin covered ceramic fibers such as carbon, fiberglass and subsequently wrapped with the metal wire (21) with or without other fibers (22). The metal wires (21) can be of different diameters in parallel or cabled forms.

Poly(L-lactic acid) (200,000 in weight average molecular weight and 175° C. in melting point) is melt-spun at 200° C. and drawn to obtain a single filament having a diameter of 0.05 mm. Two lengths of the filament are twisted to prepare a filamentous substance, which is cut to a length of 7 cm to obtain a vasoocclusive article 1 in the form of a single line. The occlusive article is free of the problems conventionally experienced.

A degradable copolymer filament comprising an internal structure having the following separate phases: (a) a matrix phase comprised as a primary component of a polymer segment which exhibits a tensile Young's modulus of 2 GPa or less and a strength retention of 50% or more after two weeks in water at 37 DEG C., pH 7.3, and (b) a micro-dispersed phase comprised as a primary component of a polymer segment which exhibits a tensile strength of 200 MPa or more and a strength reduction greater than the matrix phase in water at 37 DEG C., pH 7.3. The weight ratio of each component in the matrix phase and dispersed phase is 50:50 to 95:5, respectively, and the dispersed phase a needle structure oriented by stretching in the fiber direction. A degradable monofilament having an excellent mechanical strength and flexibility, moderate hydrolyzability, high ligature stability and being suitable as a material of surgical absorbable suture can be obtained. A preparation process is also provided.

The invention discloses a melt direct spinning superfine denier terylene FDY filament and a preparation process thereof. The superfine denier terylene FDY filament is prepared by the following steps: adopting a production line of a melt direct spinning one-step method, using a spinning plate with the diameter of capillary of 0.15 to 0.2mm, L/D of 2.6 to 3.6 and diameter of plate surface of 70 to 90mm, installing fairing in a fiber cooling area and adopting a two-way oil feeding system to directly produce the superfine denier terylene FDY filament; and the obtained dpf (denier per filament) is 0.3 to 0.6, the number of orifices of one strand of filameter is 144F to 192F. The process routine can improve internal quality, simultaneously greatly reduces the processing cost, and has the capability of replacing imported similar products.

The invention discloses a method for testing the interfacial bonding strength of a ceramic fiber-reinforced resin matrix composite material and relates to ceramic fibers. The method comprises the following steps: bonding the ceramic fibers to a hard paper frame by virtue of an instant adhesive, for straightening and solidifying the ceramic fibers; preparing an embedding mold, putting the ceramic fibers and the hard paper frame into the embedding mold, and introducing resin into the embedding mold; after the resin is solidified, cutting an embedded end together with the embedding mold so as to obtain a sample, and polishing; when the embedding depth of the sample is lower than 1mm, bonding the embedded end with a primary cut part by virtue of quick-dry resin after the polishing process; burning out two sides of the paper frame at an un-embedded end by virtue of naked flame, averagely cutting the upper end of the paper frame according to the quantity of the ceramic fibers, and bonding and reinforcing the paper frame by virtue of a hard paperboard with area equal to that of the cut paper frame; firstly fixing the embedded end at a lower clamp of a testing machine, and then fixing a reinforcing section to an upper clamp of the testing machine; carrying out a single-filament draw-out experiment; recording each withdrawal force value given by a testing machine; observing the shape of an withdrawn end, and measuring the maximal withdrawing length of the single fiber; and calculating the interfacial bonding strength between the fiber and the resin.

The invention provides a warp knitting terylene polar fleece carpet which belongs to the terylene fibre product technique field. The carpet includes a flocked yarn and a bottom yarn, the flocked yarn is made of 500-780dtex DTY terylene continuous yarn with 80-100 pieces per meter network, the bottom yarn is made of 167-333dtex FDY terylene yarn, a flocked surface height of the flocked yarn is 5-12mm, wherein, single yarn denier of the DTY terylene continuous yarn is more than or equal to 3.5dtex. The carpet has advantages that processing technique is shortened, production process is more environmentally friendly and cleaning, and cost is lower; the carpet has high impact resistance, better elasticity and hygroscopic property, abrasive resistance is second only to chinlon, high heat and solarization resisting property, no-mildew, no-moth-eaten, easy to dye or print, portable and easy to clean; the carpet is rich in polar sphere sense, has strong third dimension and flexible pattern, the carpet color is novel and shibui, has better visual effect that is suitable to be placed in high class hotel guest room, white-collar apartment, high class chamber, hotel aisle and household bathroom.

A process for preparing poly(trimethylene dicarboxylate) multifilament yarns and monofilaments. One process for preparing poly(trimethylene dicarboxylate) multifilament yarns includes (a) providing a polymer blend including poly(trimethylene dicarboxylate) and about 0.1 to about 10 weight % styrene polymer, by weight of the polymer in the polymer blend, (b) spinning the polymer blend to form poly(trimethylene dicarboxylate) multiconstituent filaments containing dispersed styrene polymer, and (c) processing the multiconstituent filaments into poly(trimethylene dicarboxylate) multifilament yarn including poly(trimethylene dicarboxylate) multiconstituent filaments containing styrene polymer dispersed throughout the filaments. Another process includes spinning at a speed of at least 3,000 m/m and processing a blend including poly(trimethylene dicarboxylate) to form partially oriented poly(trimethylene dicarboxylate) multifilament yarn. A poly(trimethylene terephthalate) yarn including poly(trimethylene terephthalate) multiconstituent filament containing styrene polymer dispersed throughout the multiconstituent filament. The invention is also directed to uses of the filament yarns and monofilament.

This invention is about a kind of producing method of self-curling long filament with superthin structure, with the method of three groups fusing composite spinning. The fibers of the 3 groups are the long fibers with the titer of single fiber 1-6 dtex and the number of pores (12-72)*2. The fibers have at least 7% curling and shrinking percentage after hotly forming and at least 20% curling and shrinking percentage after alkali process. The cross-section of one single fiber is paralleling or eccentric skin-core structural circle, ellipse or snowman. One side of the cross section has fortuitous laminated structure, and the outside fiber ratio is 0.3-0.8 dtex. The producing steps of the self curling long fibers are slice choosing - slice drying - slice fusing - combined spinning - forming curling - drafting to form the shape. By mixing the spinning units and combining the units of big heat shrinking percentage in the paralleling or eccentric skin-core structural way, we can solute the soluble units during the after operation, and separate the outboard fibers of the self curling filaments, making the fibers more slender and modulus smaller. In a word, the curling and shrinking ratio, feeling and amenity have been largely improved.

A method for making a device for causing thrombosis of an aneurysm, wherein said device comprises a single elastic filament configurable between (i) an elongated, substantially linear configuration, and (ii) a longitudinally-contracted, substantially three-dimensional configuration, said method comprising:

• • providing a sheet of shape memory material;
  • producing a single filament, two-dimensional interim structure from said sheet of shape memory material;
  • mounting said single filament, two-dimensional interim structure to a fixture so that said single filament, two-dimensional interim structure is transformed into said longitudinally-contracted, substantially three-dimensional configuration; and
  • heat treating said single filament, two-dimensional interim structure while it is mounted to said fixture so as to produce said device in its longitudinally-contracted, substantially three-dimensional configuration.

After cellulose fibers and cellulose ester fibers are co-refined, they are fed to a blend tank continuously feeds a wet laid process. The composition in the blend tank includes co-refined cellulose fibers and cellulose ester fibers and one or more additives, and the cellulose ester fibers have a denier per filament (DPF) of less than 3, a cut length of less than 6 mm, crimped, or non-round with a DPF of less than 3.

The invention discloses a bamboo carbon viscose filament and the manufacturing method. The fiber is characterized in that after bamboo carbon powder solution is mixed with the viscose solution with the proportion of 0.1-2%, the spinning is run; and bamboo viscose filament product with 30 of the number of monofilament, 0% of the deviation of the number of monofilament, 4. 8mg/100g of residue, 0.35% of oil percentage, 3. 5 grade of dyeing evenness, and 99. 8% of anti escherichia coli and gold aureus is obtained. The manufacturing method comprises preparing the bamboo carbon powder mother solution, preparing the bamboo carbon powder matching solution, rubbing and filtering of the bamboo carbon powder solution, mixing with the viscose solution, and filtering. The invention is benefit for human health and can improve the performance and added value of viscose fiber product. It is favor of environmental protection.

A separation membrane support substrate characterized by being composed of a laminated nonwoven fabric comprising a front layer as the resin coating layer, a middle layer and a back layer which are integrally formed by heat bonding, and by satisfying the following conditions (1) to (5): (1) The front layer has at least one layer comprising thermoplastic resin filaments with a single filament diameter of 7-30 μm; (2) the middle layer has at least one layer comprising melt blown fibers with a single fiber diameter of no greater than 5 μm, and a fiber basis weight of at least 1 g/m² and comprising no more than 30 wt % of the total fiber basis weight; (3) the back layer has at least one layer comprising thermoplastic resin filaments with a single filament diameter of 7-20 μm, and has a fiber basis weight of 3-40 g/m²; (4) the laminated nonwoven fabric has an apparent density of 0.67-0.91 g/cm³; and (5) the laminated nonwoven fabric has a thickness of 45-110 μm.

Wet laid products such as cardboard, paperboard, and packaging and container board can be light-weighted or made thicker, while retaining Gurley stiffness. The wet laid products contain co-refined CE staple fibers that have:

• • i. a denier per filament (DPF) of less than 3, or
  • ii. a cut length of less than 6 mm, or
  • iii. crimping, or
  • iv. a combination of any two or more of (i)-(iv).

The invention discloses a production technology for producing porous fine denier colored terylene pre-oriented filament by utilizing recycled polyester bottle flakes. In the invention, the porous fine denier colored terylene pre-oriented filament approximating to that produced by primary polyester chips is produced by utilizing recycled polyester bottle flakes and color master batches as main materials and through the work procedures such as melting and extrusion by a screw extruder, filtration by an on-line switchable melt filter, spinning by a porous fine denier spinneret plate, side-blowing cooling, oiling by an oiling nozzle, winding to shape, and the like. The spinneret orifice of the adopted spinneret plate is formed by the combination of multiple round holes which are arranged in a concentric circle type, the quantity of the round holes is equal to that of monofilaments, and the section of a fiber which is span from the spinneret orifice and formed after the work procedures of drafting, cooling and the like is round in shape. The product produced by the method of the invention can replace the porous fine denier colored terylene pre-oriented filament produced by the conventional method; the fineness of the monofilament is small, the handfeel is wonderful, and the production control is table; and the porous fine denier colored terylene pre-oriented filament can be broadly used in the fields of garment fabric and industrial fabric.