88results about "Monocomponent polyetheresters artificial filament" patented technology

A nanofiber membrane is formed on a microfiber membrane. The nanofiber membrane may be electro sprayed directly onto the microfiber membrane and becomes integrated with the microfiber membrane to form a filter. The microfiber membrane provides structural integrity to for the nanofiber membrane, and an additional microfiber membrane may be added to sandwich the nanofiber membrane.

A lightweight, low density fiber is disclosed along with a method of manufacture. The fiber includes a polyester copolymer for providing a greater elasticity than a corresponding monomer-based polyester, more than fifty percent functional void fraction in the form of foam-forming cells for reducing the density of the fiber as compared to a solid fiber, at least five void cells per axial cross section for increasing the structural integrity of the fiber as compared to less uniform foams, and submicron-sized particles of a fluorocarbon polymer, present in an amount less than 10 percent by weight.

Inorganic-organic hybrid micro-/nanofibers having a cross-sectional area not exceeding 140μ² include micro-/nanoparticulate inorganic components dispersed in an organic, absorbable or non-absorbable polymeric matrix at a weight concentration of at least about 4 percent by weight and are produced by electrostatic spinning or melt-blowing.

The present invention relates to a composition for forming fibers of synthetic detergents. The composition includes a synthetic wax, a primary surfactant added to the synthetic wax, and a secondary surfactant added to the synthetic wax. The present invention also relates to a method for developing fibers of synthetic detergents. The method includes adding a primary surfactant to a synthetic wax; adding a secondary surfactant to the synthetic wax; and forming the synthetic wax into fibers. In another form, the present invention relates to a fiber that includes a synthetic wax, a primary surfactant embedded in the synthetic wax, and a secondary surfactant embedded in the synthetic wax. The present invention also relates to a fibrous matrix of synthetic detergents. The fibrous matrix includes fibers formed of a synthetic wax and a primary surfactant embedded in the fibers. The fibrous matrix further includes a secondary surfactant embedded in the fibers.

A polyether ester elastic fiber comprising a polyether ester elastomer containing polybutylene terephthalate as a hard segment and polyoxyethylene glycol as a soft segment and copolymerized with a specific metal organic sulfonate, having a coefficient of moisture absorption of not less than 5% at 35° C. and at a RH of 95% and a coefficient of water absorption extension of not less than 10%. The above-mentioned polyether ester elastic fiber has a good moisture-absorbing property, and is reversibly largely expanded or contracted by the absorption or release of water. Therefore, a fabric giving excellent comfortableness can be obtained from said elastic fibers, and can be recycled.

An elastic polyether ester fibre with improved resiliency is prepared from binary carboxylic acid, and two or more kinds of polyalkyleneether diol, whose number average molecular weight of 1000-4000, and mixing with composite deoxidizing agent (0.05-2%). Its advantages are high toughness and strength, and high resistance to fatigue, wearning, oil and chlorine.

Disclosed is a polyethylene glycol modified copolyester fiber that has exceptional moisture management characteristics and that can be formed into exceptionally comfortable fabrics. The copolyester fiber includes polyethylene terephthalate in an amount sufficient for the copolyester fiber to possess dimensional stability properties substantially similar to those of conventional, unmodified polyethylene terephthalate fibers, polyethylene glycol in an amount sufficient for the copolyester fiber to possess wicking properties that are superior to those of conventional, unmodified polyethylene terephthalate fibers, and chain branching agent in an amount less than about 0.0014 mole-equivalent branches per mole of standardized polymer.

The present invention provides a network structure having excellent repeated compression durability, the network structure having a low repeated compression residual strain and a high hardness retention after repeated compression.

A network structure comprising a three-dimensional random loop bonded structure obtained by forming random loops with curling treatment of a continuous linear structure including a polyester-based thermoplastic elastomer and having a fineness of not less than 100 dtex and not more than 60000 dtex, and by making each loop mutually contact in a molten state, wherein the network structure has an apparent density of 0.005 g/cm³ to 0.20 g/cm³, a 50%-constant displacement repeated compression residual strain of not more than 15%, and a 50%-compression hardness retention of not less than 85% after 50%-constant displacement repeated compression.

A normal-pressure cation-dyeable polyester is provided which contains an isophthalic acid component having a metal sulfonate group in a predetermined proportion based on the total of acid components present in the polyester, and contains a polyalkylene glycol having an average molecular weight of 150 to 600 in a predetermined proportion based on the polyester, wherein the proportion of diethylene glycol based on the total of glycol components and a terminal carboxyl group concentration are each set within a predetermined range. The polyester is stable in quality and excellent in dark- and pale-color light fastness when used for textile products.

The invention relates to a bio-based degradable polyester fiber and a preparation method thereof. The preparation method includes: adopting bio-based diol and bio-based binary acid as the raw materials, adopting melt polycondensation, carrying out esterification reaction, segmented pre-polycondensation reaction and final polycondensation reaction successively to obtain bio-based degradable polyester, and then conducting melt spinning forming to obtain the bio-based degradable polyester fiber. Specifically, the segmented pre-polycondensation reaction falls into first pre-polycondensation reaction and second pre-polycondensation reaction, wherein polyethylene glycol is added in the first pre-polycondensation reaction process, and a monomer with a polyhydroxyl structure is added in the secondpre-polycondensation reaction process. The final product has a moisture regain of greater than or equal to 2.0% and a surface contact angle of less than or equal to 60 degrees. The preparation methodprovided by the invention has a simple process, effectively reduces the duration of polycondensation reaction, lowers energy consumption and material consumption, and has good economic benefits. Theproduct prepared by the method provided b the invention has the advantages of good degradability, good fiber mechanical strength and high quality, and has great application prospects.

The invention relates to nanometer TiO2 polyether ester elastic fiber manufacturing method. It includes the following steps: preparing nanometer TiO2/1, 4-butanediol system that replacing the nanometer TiO2 by 1,4-butanediol as dispersion medium and vacuum pumping at 70-80 deg.C; preparing polyether ester elastic body that using dimethyl terephthalate, polytetrahydrofuran ether glycol, 1, 4-butanediol as material, adding 0.1-2.0% mass fraction nanometer TiO2, vacuum pumping at 50-100 deg.C, ester interchange reacting at 180-200 deg.C, condensation polymer reacting for 3-4h at 230-250 deg.C under 80Pa; melt spinning. This technology is simple. In addition, the prepared fiber has even nanometer particle disperse, good elastic recovery, low cost, suits for industrialization production.

The invention relates to a preparing method for an ordinary-pressure positive-ion dyeable polyester fiber. The preparing method includes the steps that dimethyl isophthalate-5-sodium benzenesulfonate,ethylene glycol, a catalyst and an anti-ether agent are mixed to be subjected to an ester exchange reaction, the reaction is end, then ethylene glycol and sodium ethylene glycol are added, modulationis carried out, then terephthalic acid, ethylene glycol and a catalyst are mixed, and the mixture is subjected to an esterification reaction; the modulated product after the ester exchange reaction is end and polyethylene glycol are added into an esterification reaction system reaching the end point of the esterification reaction, condensation polymerization is carried out, and spinning melt is obtained; the spinning melt is measured, extruded, cooled, subjected to oil applying, stretched, subjected to heat setting and wound, and the ordinary-pressure positive-ion dyeable polyester fiber is prepared. According to preparing method, generation of impurities in the polyester-fiber production process is reduced, pressure rising of a spinning assembly and a filter is reduced accordingly, the service cycle of the polyester fiber is prolonged, the continuity and the safety of the whole production process are guaranteed, and the preparing method has the good economic value and popularizationvalue.