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1818 results about "Elastic fiber" patented technology

Elastic fibers (or yellow fibers) are bundles of proteins (elastin) found in extracellular matrix of connective tissue and produced by fibroblasts and smooth muscle cells in arteries. These fibers can stretch up to 1.5 times their length, and snap back to their original length when relaxed. Elastic fibers include elastin, elaunin and oxytalan.

Stretch wovens with a control yarn system

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.
Owner:THE LYCRA CO LLC

Parallel composite elastic fiber and manufacture method 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.
Owner:TORAY IND INC

Elastin protective polyphenolics and methods of using the same

ActiveUS20090110709A1Prevent premature proteolyticEfficient elastogenesisCosmetic preparationsBiocideFiberPolyphenol
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.
Owner:ELASTOGENESIS LLC +1

Method for preparing functional composite woolly elastic fiber

The invention relates to a method for preparing functional composite woolly elastic fiber, comprising the following steps: (1) preparing uvioresistant fine-denier polyester pre-oriented yarn (a) with the method of adding uvioresistant masterbatch; (2) carrying out composite spinning with low viscosity polyester (PET) or modified PET and polyethylene terephthalate (PTT) to prepare fully-drawn self-winding composite elastic fiber (b); and (3) stretching and false twisting the uvioresistant fine-denier polyester pre-oriented yarn (a) on a false-twisting texturing machine, converging the uvioresistant fine-denier polyester pre-oriented yarn (a) and the fully-drawn self-winding composite elastic fiber (b) in the position of a second roller, combining the uvioresistant the fine-denier polyesterpre-oriented yarn (a) and the fully-drawn self-winding composite elastic fiber (b) through an interlacing machine, shaping the uvioresistant the fine-denier polyester pre-oriented yarn (a) and the fully-drawn self-winding composite elastic fiber (b) through a second heating box, and winding the uvioresistant the fine-denier polyester pre-oriented yarn (a) and the fully-drawn self-winding composite elastic fiber (b) into a composite yarn, contracting the PET / PTT self-winding composite elastic fiber with the elasticity and the contractibility in the core layer of the composite woolly elastic fiber to show the elasticity of the composite yarn, and making the uvioresistant fine-denier polyester pre-oriented yarn to float on the surface layer of the composite yarn to show the uvioresistant performance of the composite yarn. Therefore, the uvioresistant composite woolly elastic fiber is prepared.
Owner:ZHEJIANG HENGYI PETROCHEMICAL RES INST CO LTD

Antistatic polyurethane elastic fiber and material for producing the same

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.
Owner:MATSUMOTO YUSHI SEIYAKU

Polyurethane Elastic Fiber And Process For Producing Same

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.
Owner:ASAHI KASEI FIBERS CORPORATION
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