1810 results about "Elastic fiber" patented technology

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.

There is disclosed a mobile consumer electronic device comprising a display capable of providing information at an external display surface. The device further includes an elastic fiber optic image guide extending between a first end and a second end. The first end of the elastic fiber optic image guide is optically coupled to the external display surface. The second end of the elastic fiber optic image guide having a first configuration in a first mode and a second configuration in a second mode. The second end may be rotated and/or enlarged in the second mode when compared to the first mode.

The present invention is generally directed to a liquid entrapping device having the capacity to absorb liquids. More particularly, the present invention is directed to a liquid entrapping device comprising an absorbent component, hydrophilic elastomeric fibrous component in fluid communication therewith, and optionally an adhesive component. The present invention is also directed to a liquid entrapping device having the capacity to absorb liquids while maintaining a suitable degree of mechanical strength. Furthermore, the present invention is generally directed to methods for making and using the foregoing devices and materials.

In some embodiments are an article including a woven fabric having warp yarns and weft yarns. Either warp yarn or weft yarn or both warp and weft yarns have two separate systems of yarns. The systems of yarns include a hard yarn forming the main body of fabric and a composite covered elastic yarn with an elastic fiber core; wherein the fabric has an outer face side, a back side, and the fabric includes at least one of: (a) a weaving pattern where the composite yarn and at least one adjacent hard yarn pass over the same pick when the composite yarn is on the outer surface; (b) the ratio of hard yarn denier to composite yarn denier is at least 1:1; and (c) the composite yarn floats over no more than 5 picks on the outer face side.

The invention provides a high-performance polyester composite elastic fiber with good dyeability. The composite fiber is prepared from two polyester or copolyester components with viscosity differences through a composite spinning process, wherein the high-viscosity component accounts for 30 to 70 percent by weight, and the low-viscosity component accounts for 70 to 30 percent by weight. The composite fiber has a parallel or eccentric core sheath type structure, and has good curling property, natural resilience and dyeability; meanwhile, the manufacturing process is simple and convenient and easy to operate; the low-temperature dyeing property of the composite fiber has the functions of environmental protection and energy conservation; and the composite fiber of the invention can be widely applied to various woven and knitted elastic fabrics.

PROBLEM TO BE SOLVED: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same.

SOLUTION: An elastic nonwoven fabric comprising long elastomeric fiber and nonelastomeric fiber in a weight ratio within a range from 50/50 to 95/5, which has an elongation recovery rate of the elastic nonwoven fabric after 50% elongation equal to or higher than 70%, and a resistance to peel two sheets of the nonwoven fabric apart equal to or lower than the strength of the fabric under 50% elongation; as well as fiber products using the same.

A blended woven or knitted fabric which contains both highly fusible polyurethane elastic fibers exhibiting a retention of tenacity of 50% or above after the dry heat treatment at 150° C. for 45 s at 100% elongation and a melting point of 180° C. or below and at least one kind of non-elastic yarns and which is produced by fusing the polyurethane elasotomeric fibers to each other or the polyurethane elastic fibers to the non-elastic yarns at the crossover points by dry- or wet-heat setting; and a process for the production thereof.

The invention discloses parallel composite elastic fiber and a manufacture method thereof. The parallel composite elastic fiber is obtained through false twisting process after parallel composite spinning of valox and polyethylene glycol terephthalate according to a weight ratio of 70/30 to 30/70, wherein the inherent viscosity of the valox is between 0.45 to 0.60 dl/g, and the difference of the inherent viscosity of the valox and the inherent viscosity of the polyethylene glycol terephthalate is between 0.40 and 1.05 dl/g. The elastic extensibility of the elastic fiber of the invention is between 130 and 220 percent, and the elastic recovery rate is higher than 85 percent.

Extensible bicomponent fibers and webs particularly adapted for disposable personal care product component applications. Sheath/core configurations providing desirable feel properties for elastic embodiments when compared with conventional elastic fibers and webs are obtained with specific olefin polymer combinations and sheath configurations.

Provided is a polyurethane polymer which is excellent in oil resistance, weatherability, light resistance, heat resistance, hot water resistance, hydrolysis resistance, strength, chlorine resistance, and chemical resistance, and which can be produced simply and economically. The polyurethane polymer is produced by polymerizing at least two components: a vinyl polymer (A) having a mercapto group at each end of the molecular chain produced by a reversible addition-fragmentation chain transfer polymerization method, and an organic polyisocyanate (B). Also provided are polyurethane-based materials containing the polyurethane polymer, and polyurethane elastic fiber.

The invention discloses a one-way moisture guiding and absorbing and heating knitted fabric and a manufacturing method thereof. The fabric is knitted from first yarn, second yarn and third yarn, the first yarn is covering yarn, the second yarn is polyurethane elastic fiber yarn or polyolefin elastic fiber yarn, and the third yarn is cotton fiber blended yarn or all cotton yarn. The fabric is of a three-layer structure composed of an outer layer, a middle layer and an inner layer, the outer layer is knitted from the first yarn, the middle layer is knitted from the second yarn, and the inner layer is knitted from the third yarn. The manufacturing method of the fabric sequentially comprises the following steps of 1, yarn preparation; 2, weaving on a machine; 3, blank inspection; 4, loose fabric cylinder matching; 5, pre-sizing; 6, pretreatment; 7, dyeing; 8, soaping; 9, acid pickling; 10, in-cylinder softening; 11, dehydrating and drying; 12, re-sizing; 13, polished blank inspection. The fabric has a one-way moisture guiding function and achieves moisture absorbing and heating functions.

It is an object of the invention to provide a nonwoven fabric having projections and recesses, comprising extensible fiber and elastic fiber, which has excellent feel on the skin and elasticity, and excellent air permeability in the planar directions and the thickness direction, as well as a method of producing the nonwoven fabric.

A nonwoven fabric having projections and recesses, comprising extensible fiber and elastic fiber, wherein the first surface of the nonwoven fabric has a plurality of projections and a plurality of recesses, and the proportion of extensible fiber in the projections is higher than the proportion of extensible fiber in the recesses.

The invention relates to a production method of double-component spinneret outside composite parallel self-crimping elastic short fiber. The production method includes: adopting high molecular polymer components A and B different in shrinkage characteristics as raw materials; subjecting AB melt to outside compositing through a double-passage spinneret to obtain an AB parallel composite filament bundle; subjecting the AB parallel composite filament bundle sequentially to air-blowing cooling, oiling, winding traction and filament carrying to obtain AB parallel composite fiber protofilament; subjecting the AB parallel composite fiber protofilament sequentially to inter-cluster balance, drafting, thermal setting, oiling, crimping, loosening and drying and cutting to obtain the double-component spinneret outside composite parallel self-crimping elastic fiber. The fiber has excellent and lasting crimping performance, is high in elasticity, elastic recovery rate and spinnability, wide in application range and suitable for nonwoven filling.

Bicomponent fibers comprising a thermoplastic polymer and an elastomeric compound are made which can be continuously extruded from the melt at high production rates. The elastomeric compound comprises a selectively hydrogenated block copolymer having a controlled distribution elastomeric block which has a mono alkenyl arene blockiness index of less than 40 mol % and high flow. Elastomeric fibers are also provided which comprise a controlled distribution block copolymer and a slip agent. The fibers are useful for the manufacture of articles such as woven fabrics, spunbond non-woven fabrics or filters, staple fibers, yarns and bonded, carded webs. The bicomponent fibers can be made using a process comprising coextrusion of the thermoplastic polymer and elastomeric compound to produce fibers at spinning speeds of at least 1000 mpm and having a denier from 0.1 to 50 g/9000 m.

Dermal fibroblasts permanently loose their ability to synthesize elastin, the major component of elastic fibers, shortly after puberty. This progressive loss of elastic fibers cannot be replaced, resulting in the physical signs of aging. The present invention provides methods and compositions containing the polyphenols ellagic acid and/or tannic acid for protection against degradation of cutaneous elastic fibers by the elastolytic enzymes. The use of ellagic acid and/or tannic acid increased the overall deposition of elastic fibers in healthy and damaged skin cells. The protection of both intra-tropoelastin and extra-cellular mature elastic fibers from proteolytic enzymes by ellagic acid and tannic acid caused an increase in the net deposition of elastic fibers. Therefore, embodiments of the present invention provide methods and composition for the treatment of skin and prevention and treatment of degradation of dermal elastic fibers.

One example embodiment includes a pre-cut strip of kinesiology tape. The pre-cut strip of kinesiology tape includes a fabric. The fabric includes a weave of fibers, where the fibers include an elastic fiber covered by a covering material. The fabric also includes a first end and a second end, where the second end is opposite the first end. The fabric further includes one or more rounded corners. The pre-cut strip of kinesiology tape also includes a longitudinal cut in the fabric. The longitudinal cut passes through at least a portion of the fabric and extends from the first end to a pre-determined distance from the second end. The pre-cut strip of kinesiology tape also includes adhesive on a first surface of the fabric, where the adhesive is configured to adhere the fabric to a human body.

A method for producing visco-elastic fluidic material flows by drawing a visco-elastic fluidic material with corresponding separate second fluid flows associated therewith to form a visco-elastic fiber vacillating in a repeating, generally omega-shaped pattern having a bowed portion with first and second side portions that first converge toward each other and then diverge outwardly in generally opposing directions. In one operation, the visco-elastic fiber vacillating in the repeating, generally omega-shaped pattern is an adhesive material deposited onto woven and non-woven fabric substrates and stretched elongated elastic strands in the manufacture of a variety of bodily fluid absorbing hygienic articles.

Inorganic salts are generated in the production process of metal salts, such as sulfonates, sulfates and phosphates. When such metal salts containing inorganic salts are added as an antistatic agent to a polymer for producing polyurethane fiber, the inorganic salts cause fiber breakage or pack choking in fiber extrusion process. In addition, such antistatic agents are highly hygroscopic and contain trace of water. When such an antistatic agent is added to the material for polymerizing polyurethane, the alcohol and water in the agent react with isocyanate to result in lowered degree of polymerization and generation of oligomer. Such polyurethane polymer is spun into fiber of low elongation and tenacity. The material for polyurethane elastic fibers of the present invention comprises a mixture of 5 to 95 weight percent of at least one of the above-mentioned antistatic agents and 95 to 5 weight percent of a isocyanate-free starting material for elastic fibers, and eliminates the above troubles.

A polyurethane elastic fiber, containing inorganic compound particles that have an average particle size of 0.5 to 5 mm and that show a refractive index of 1.4 to 1.6, having at least one protruded portion that has a maximum width of 0.5 to 5 μm, in the fiber surface, per 120-μm length in the fiber axis direction.

The present invention is a friction- and backlash-fee flexible parallel manipulator device. The device is composed of multiple elastic fiber legs with various physical properties, a top platform, and a bottom platform. With multiple degrees of freedom, the motion of the top platform is controlled by the multiple elastic fiber legs whose lengths or curvatures between the top and bottom platforms are controlled based on the required motion of the top platform. The device can be used for nano-, micro-, or meso-manipulation.