1510results about "Flat-bed knitting machines" patented technology

A medical film that is excellent in biocompatibility and bioabsorbability and has an excellent strength in suturing and bonding is provided. A reinforcing material 12 made of a biodegradable polymer is placed in a gelatin solution so as to allow the solution to infiltrate in the reinforcing material 12 and then the gelatin is dried. This allows the gelatin that has infiltrated entirely in an internal part of the reinforcing material 12 to gel, thereby forming a gelatin film 11. Thus, a medical film 1 in which the reinforcing material 12 and the gelatin film 11 are integrated is obtained. The gelatin film 11 preferably is a cross-linked gelatin film.

Bi-directional and multi-axial fabrics, fabric composites, ballistically resistant assemblies thereof, and the methods by which they are made. The fabrics are comprised of sets of strong, substantially parallel, unidirectional yarns lying in parallel planes, one above the other, with the direction of the yarns in a given plane rotated at an angle to the direction of the yarns in adjacent planes; and one or more sets of yarns having lower strength and higher elongation interleaved with the strong yarns. The fabrics of the invention provide superior ballistic effectiveness compared to ordinary woven and knitted fabrics but retain the ease of manufacture on conventional looms and knitting machines.

Unique blends of fibers that incorporate synthetic cellulosic fibers to render fabrics made with such blends more durable than fabrics made with natural cellulosic fibers such as cotton. While more durable than cotton, the synthetic cellulosic fibers used in the blends are still inexpensive and comfortable to the wearer. Thus, the benefits of cotton (affordability and comfort) are still attained while a drawback of cotton—low durability—is avoided. In one embodiment, the fiber blend includes FR modacrylic fibers and synthetic cellulosic fibers, preferably, but not necessarily non-FR lyocell fibers such as TENCEL™ and TENCEL A100™. Other fibers may be added to the blend, including, but not limited to, additional types of inherently FR fibers, anti-static fibers, anti-microbial fibers, stretch fibers, and / or high tenacity fibers. The fiber blends disclosed herein may be used to form various types of FR fabrics. Desired colors may be imparted in a variety of ways and with a variety of dyes to the fabrics disclosed herein. Fabrics having the fibers blends disclosed herein can be used to construct the entirety of, or various portions of, a variety of protective garments for protecting the wearer against electrical arc flash and flames, including, but not limited to, coveralls, jumpsuits, shirts, jackets, vests, and trousers.

The present invention provides fabrics that have unique mechanical, chemical, electrical, and thermal properties. The fabrics comprise layers of woven, knit or felted fibers, yarns or tow. Interstitially synthesized nanotubes, such as single-walled or multi-walled carbon nanotubes, enhance the fabric's antiballistic properties. These nanotubes may also insulate, semi-conduct or super-conduct electrical charges, or provide enhanced thermal properties of these fabrics which can be layered to form unique garments or structures.

Disclosed herein are color change laminate materials suitable for a variety of uses. The color change laminate materials include at least two layers of extensible materials having visually distinct coloration, and indicate a stretched or extended state by exposing the previously covered coloration of a lower layer. The color change laminate materials may also indicate the amount of stretching or extension is applied to the laminate. When the laminate includes elastic materials capable of stretch and recovery, the color change laminate materials may further be reversible color change laminate materials that can display color change upon extension and then recover the extension and return to the original coloration. Such color change laminate materials and reversible color change laminate materials are highly useful for use in garments or other textile type applications, in or on personal care products, protective wear products, health care and medical care products, bandages and the like.

A knitted spacer material including the use of a stretch yarn component for stretch, compression resistance, decreased weight, and improved drape and / or conformability.

Flat knitting allows production of textile structures (e.g., for use in footwear uppers) of a final desired shape such that textile cutting steps can be avoided. Flat knitted elements also can be formed directly in desired three dimensional shapes, which can help avoid the need to use additional support structures (e.g., in footwear construction). By selectively placing multiple different yarns and / or stitch patterns at multiple different locations in the overall structure during the knitting process, flat knitted products may have multiple different physical properties (e.g., different stretchability, different moisture management capabilities, etc.) at multiple different locations or zones within a single, unitary construction (e.g., different properties at different zones or locations within a single footwear structure). Additionally, flat knitting can be used to produce pockets, tunnels, or other layered structures in the final product.

A fiber blend, a yarn spun from the fiber blend, and a fabric made from the yarn, wherein the fiber blend comprises: (a) about 40 wt.% to about 65 wt.% modacrylic fibers containing antimony, or FR acrylic fibers; (b) about 10 wt.% to about 50 wt.% cotton fibers or FR cotton fibers; (c) up to about 25 wt.% nylon fibers; and (d) greater than about 3 wt.% and less than 10 wt.% para-aramid fibers. The fabric is over 90 percent dyeable and is capable of achieving ASTM F1506 certification with an Arc Thermal Performance Value greater than 8.0 cal / cm2. The fabric is woven or knitted, and has a weight of about 4.0 oz. / yd.2 to about 10.5 oz. / yd.2. The fabric is suitable for garments worn during activities in which there is potential for exposure to flame and / or electrical arc.

A breathable, stretchable, and heat-moldable multi-layer weft knit spacer fabric having a substantially decorative first layer and a spaced less decorative second layer. Also, a method of integrally knitting the multi-layer knitted fabric on a circular weft knit machine is also described. Articles of the manufacture comprising the fabric are also described.

Existing pressure sensing fabrics may involve two portions, i.e., insulating and conductive portions in the fabric, which increases the complexity of the fabric system and more important, and the instablization of the resistance-strain relationship during dynamic deformation which limits the application fields due to intrinsic properties difference between the two portions. These fabrics commonly employ two or more layers to accomplish the detecting functions. Such arrangements increase the thickness, weight, and cost of the sensors with some other disadvantages such as low accuracy, instability, etc. This invention describes a pressure sensing fabric have a general structure as simple as a plurality of electrically conducting yarns forming interlocking loops of yarns. The pressure sensing fabric is found not only be able to sense pressure but also the magnitude of the pressure.

The present invention is directed to an abrasion-resistant tubular sleeve formed from a crocheted fabric cloth which is heat set into a resilient tubular sleeve. The fabric cloth is formed with a first monofilament weft and a second textured multifilament weft. A set of warps including a plurality of textured multifilament yarns forming a chain stitch lap is crocheted into the fabric cloth. Optionally, a textured multifilament yarn may be utilized as a placed or a lay-in warp in the fabric to provide further continuity on the face of the fabric cloth.

The invention discloses a textile laminate (1, 400, 450) with a first layer (5) comprising a waterproof and preferably breathable functional layer (10, 20) and a second layer (30) comprising at least a first component and a second component. The first component is stable to a first temperature and the second component melts at a lower second temperature. In one embodiment of the invention, the first component is polyester and the second component may be a thermoplastic such as copolyester, polyamide, copolyamide or polyethylene. The textile laminate (1) is particularly advantageous when two of such laminates (1, 400, 450) have to be joined or fused together. In this case a waterproof seam is created at the seam (500) between the two laminates (1, 400, 500).

A garment and system includes a monitoring fabric that exhibits a light reflection property and substantially no light transmission property when the fabric is illuminated with light having wavelength(s) in the range of 400 to 2200 nanometers. The amount of useful light reflected by the fabric into an aperture of acceptance defined with respect to an axis extending from the fabric relative to the amount of light lost to the aperture of acceptance detectably changes when the fabric stretches in response to motion, as the motion induced by physiological activity (e.g., heart rate). The system includes at least one radiation source and at least one radiation detector, with the detector disposed in the aperture of acceptance. The source and detector may be attached to the fabric in relative positions such that the reception of incident radiation by the detector is directly affected by a change in the amount of useful light reflected by the fabric into the aperture of acceptance as the fabric stretches in response to motion.

A method for making a textile sensor and a textile sensor can include selecting a combination of variables from the group consisting of yarn variables, stitch variables, and textile variables; and knitting an electrically conductive yarn in the textile sensor in accordance with the selected combination of variables, wherein the combination of variables is selected so as to provide a controlled amount of contact resistance in the textile sensor. The method and textile can further include a capacitive textile-sensor having at least two integrally knit capacitor plate elements and having a configuration adapted for a sensing activity. Resistance in the textile sensor can automatically calibrate to a stable baseline level after the textile sensor is applied to a body.

The invention discloses an illuminating textile article including a diode-based lighting device and a textile body. The diode-based lighting device has M contact points where M is an integer equal to or larger than 2. The textile body is constituted by N conductive yarns and at least one non-conductive yarn where N is an integer equal to or larger than 2, and provides M′ conductive exposed portions of the conductive yarns which are separated by the at least one non-conductive yarn from one another. Each of the M contact points corresponds to one of the M′ conductive exposed portions and is fixed to the corresponding conductive exposed portion. The conductive yarns provide terminals for electric connection of a power supply.

A utility glove having a palm side including a three dimensional molded palm portion formed of an elastomeric material with a thumb portion and at least one finger portion and a back side of the glove comprising a fabric material. The molded palm portion may have one or more of thickened areas for abrasion resistance, padded areas for comfort, flex grooves for improved movement and textured grip areas for improved grip. The molded palm portion may be formed of different elastomeric materials to take advantage of the different characteristics of the particular materials.A molded portion of the utility glove may be formed by placing a piece of fabric against a mold part formed in the shape of at least a portion of a hand, bringing a corresponding mold part into molding relation with the mold part in the shape of at least a portion of the hand and injecting an elastomeric material into the mold to form the molded portion.

A knitted fabric comprising two confronting webs, each web being formed by a series of continuous lengths of yarn extending generally parallel to one another and having loops arranged in walewise and coursewise rows. One web overlies the other and, the two webs being united at intervals by a tuck stitch of yarn of one web engaging the other web. The tuck stitches are spaced apart walewise by a plurality of courses to create channels between the stitches. The channels extend walewise of the webs. At least one yarn is inserted under tension between the two fronting webs and held in parallel relation to the parallel lengths of yarn. When relaxed, the yarn inserted under tension causes the confronting webs to be spaced apart within each of the channels.

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 present invention is directed to an elastic composite material having an elastic layer having a first side and a second side; at least one gatherable layer bonded to at least one of the first side and second side of the elastic layer; and a fibrous material entangled and intertwined with both the elastic layer and the gatherable layer. The resulting elastic composite provides a stretchable material which can conform to surfaces and has desirable properties of the fibrous material entangle and intertwined with both the elastic layer and the gatherable layer and does not suffer from the loss of the fibrous material from the stretchable substrate. The composite is usable in as bandages, durable wipes, durable mops and personal care products, such as diapers and feminine napkins. Also disclosed is a method for making the composite.

An elastic knitted fabric having a multilayer structure, made by binding separate front and back two-layer ground knitted fabrics together, wherein the above described two-layer ground knitted fabrics are bound together with only a bare string(s) of polyurethane based elastic fibers of 17 to 3000 decitexes.

A medical bandaging product having a predetermined length suitable for a given medical use, including an enclosure formed of a moisture-impervious material sealable to prevent entry of moisture and a medical bandage material positioned in the enclosure and sealed therein against entry of moisture until use. The medical bandage material includes a substrate formed from a single integrated knitted fabric layer having a plurality of interconnected knitted fabric yarns forming a three-dimensional structure. A reactive system is impregnated into or coated onto the substrate. The system remains stable when maintained in substantially moisture-free conditions and hardens upon exposure to sufficient moisture to cooperate with the three-dimensional structure to form a rigid, self supporting structure. A soft, flexible protective wrapping encloses the substrate along its length for providing a cushioning barrier interposed between the substrate and a patient when the medical bandage material is in use.

A composite textile fabric for rapidly moving moisture away from the skin, and for retaining body heat, is provided. The composite fabric includes an inner fabric layer made of a yarn comprising a plurality of fibers primarily of polyester or other synthetic yarns which have been rendered hydrophilic, and an outer fabric layer made of a yarn comprising a plurality of fibers primarily of polyester or other synthetic yarns which have also been rendered hydrophilic. The inner fabric layer and the outer fabric layer are formed concurrently by knitting a plaited construction so that the layers are distinct and separate, yet integrated one with the other. The yarn fibers of the inner fabric layer are embedded with particles of a refractory carbide, or may be treated by metal vapor deposition to enhance the retention of body heat.

A biocompatible surgical silk mesh prosthetic device employs a knit pattern that substantially prevents unraveling and preserves the stability of the mesh device, especially when the mesh device is cut. An example prosthetic device employs a knitted mesh including at least two yarns laid in a knit direction and engaging each other to define a plurality of nodes. The at least two yarns include a first yarn and a second yarn extending between and forming loops about two nodes. The second yarn has a higher tension at the two nodes than the first yarn. the second yarn substantially prevents the first yarn from moving at the two nodes and substantially prevents the knitted mesh from unraveling at the nodes.

A medical film that is excellent in biocompatibility and bioabsorbability and has an excellent strength in suturing and bonding is provided. A reinforcing material 12 made of a biodegradable polymer is placed in a gelatin solution so as to allow the solution to infiltrate in the reinforcing material 12 and then the gelatin is dried. This allows the gelatin that has infiltrated entirely in an internal part of the reinforcing material 12 to gel, thereby forming a gelatin film 11. Thus, a medical film 1 in which the reinforcing material 12 and the gelatin film 11 are integrated is obtained. The gelatin film 11 preferably is a cross-linked gelatin film.

Fabrics with a knit construction using an air jet spun yarn and ring spun yarn that provide electric arc protection are disclosed. Garments made from the fabrics are also disclosed. In addition, devices, systems, and methods are disclosed that are useful for tracking for the purpose of monitoring and alerting the user of a garment and / or others regarding the safety, health, environmental, and security aspects of the garment, user, and / or the environment in which the user is present.

An armor composite material has been invented which contains a fabric which has been impregnated with shear thickening fluid. This invention offers a ballistic resistant material that is more flexible and less bulky than comparable, conventional ballistic fabric. The material in the alternative can be puncture resistant. The invented material offers superior ballistic performance and / or puncture resistance compared to conventional ballistic fabric-based materials of equal thickness. The invented material can be applied to applications requiring armor that is compact and / or flexible, such as body armor, protective clothing and flexible protective devices and shields, and stab resistant clothing and devices.

The invention relates to a device for splinting and / or maintaining a cavity, an organ duct and or a vessel in a human or animal body, said device including at least one compressible and self-expanding stent that is composed of at least three phases.