The present disclosure provides a fiber and fabrics made therefrom. In an embodiment, a fiber is provided and includes an odor control composition. The odor control composition includes (A) from 85 wt % to 99.5 wt % of an olefin-based polymer and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes: (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide.

Processes for making high-performance polyethylene multi-filament yarn are disclosed which include the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DR.sub.fluid; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DR.sub.solid of at least 4, wherein in step b) each spinhole comprises a contraction zone of specific dimension and a downstream zone of diameter Dn and length Dn with Ln/Dn of from 0 to at most 25, to result in a draw ratio DR.sub.fluid=DR.sub.sp*DR.sub.ag of at least 150, wherein DR.sub.sp is the draw ratio in the spinholes and DR.sub.ag is the draw ratio in the air-gap, with DR.sub.sp being greater than 1 and DR.sub.ag at least 1. High-performance polyethylene multifilament yarn, and semi-finished or end-use products containing said yarn, especially to ropes and ballistic-resistant composites, are also disclosed.

A method for producing a polyurethane elastic fiber according to the present invention contains the steps of: [1] producing a polyurethane urea polymer (A) having a number average molecular weight ranging from 12,000 to 50,000, and represented by general formula (1); [2] preparing a spinning dope by adding the polyurethane urea polymer (A) to a polyurethane urea polymer (B); and [3] spinning a polyurethane elastic fiber using the spinning dope.

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In the formula, R.sup.1 and R.sup.2 are an alkyl group or a hydroxyalkyl group, R.sup.3 is an alkylene group, a polyethyleneoxy group or a polypropyleneoxy group, R.sup.4 is a diisocyanate residue, X is a urethane bond or a urea bond, R.sup.5 and R.sup.6 are a diisocyanate residue, P is a diol residue, Q is a diamine residue, UT is a urethane bond, UA is a urea bond, each of k, 1, m and n is 0 or a positive number.

Provided are a resin composition including at least one near infrared absorbing coloring agent selected from compounds represented by Formula (1), and a resin, in which a content of the near infrared absorbing coloring agent is in a range of 0.3% by mass to 5% by mass with respect to a total amount of the resin composition, a resin molded article, and a method of producing a resin molded article. The details of the reference numerals of the compounds are as described in the specification.

A process for stabilizing precursor fibers for the production of carbon fibers is disclosed. The process comprises the following steps: continuously introducing, passing and removing said precursor fibers into, through and from a process chamber; establishing a predetermined process gas atmosphere different in composition from ambient air in said at least one process chamber, said process gas atmosphere containing at least one of a reactive component and a catalyst having a predetermined partial pressure; while said precursor fibers are in said process chamber, heating the precursor fibers to at least a first temperature and maintaining said first temperature for a predetermined period of time.

To provide a reversibly thermochromic composite fiber having a reversible color change due to a temperature change, having such excellent flame retardancy that flame is hard to spread even if ignition occurs once, and having high safety.

[Solution] Disclosed is a sheath-core type reversibly thermochromic composite fiber including a core comprising a resin, a reversibly thermochromic pigment, and a flame retardant, and a sheath comprising a resin and a flame retardant.

A nonwoven fabric and a method of production of said nonwoven fabric are disclosed, wherein the nonwovens fabric comprises at least one layer, said layer comprising endless filaments, —which comprise at least a first polymeric material (A) and a second polymeric material (B) having its melting point lower than the first polymeric material A, —wherein the second polymeric material (B) extends in the longitudinal direction of the filament and forms at least a part of the surface of the filament and—the at least one layer of endless filaments comprises filament-to-filament bonds formed of the second polymeric material (B), wherein all components of the filaments are arranged across the cross-section of the filament in a non-crimpable configuration and the nonwoven fabric has a structural softness of at least 80 (m.sup.4 mm.sup.2 g.sup.−2).

A nanofiber membrane includes a polymer nanofiber; and an amphiphilic triblock copolymer bonded to the surface of the polymer nanofiber, the amphiphilic triblock copolymer includes a hydrophobic portion; hydrophilic portions positioned at both ends of the hydrophobic portion; and a low surface energy portion positioned at one end of each of the hydrophilic portions positioned at both ends of the hydrophobic portion, and the hydrophobic portion of the amphiphilic triblock copolymer is bonded to the surface of the polymer nanofiber and the hydrophilic portion and the low surface energy portion are exposed to the outside of the surface of the polymer nanofiber. The membrane simultaneously exhibits hydrophilicity, underwater oleophobicity, and low oil adhesion force, thus has surface segregation properties, and as a result, has an excellent oil permeate flux, exhibits antifouling properties, and can excellently separate oil in water.

Artificial turf filaments formed from polyethylene are provided that can have desirable properties. In one aspect, an artificial turf filament comprises a composition comprising a first composition, wherein the first composition comprises at least one ethylene-based polymer and wherein the first composition comprises a MWCDI value greater than 0.9, and a melt index ratio (I10/I2) that meets the following equation: I10/I2≥7.0−1.2×log (I2).

A method of making a bijel includes dispersing surface-active nanoparticles in a ternary liquid mixture. The ternary liquid mixture includes a hydrophilic liquid, a hydrophobic liquid, and a solvent. The ternary liquid mixture is contacted with water. A bijel includes a stable mixture of two immiscible liquids separated by an interfacial layer of colloidal particles. The bijel has temperature-independent stability, and the domain sizes are below one micrometer.