A task is to provide a cloth which is advantageous in that the cloth has extremely excellent flame retardancy, and further has excellent washing shrinkage resistance and excellent hand as well as excellent antistatic properties, preferably in that the whole of the cloth can be uniformly dyed, and a fiber product, and the task is achieved by obtaining a cloth using a spun yarn which comprises a meta-type wholly aromatic polyamide fiber, a modacrylic fiber, and a conductive fiber.

Yarns and fabrics that include modacrylic fibers are described herein. A yarn and/or fabric may include modacrylic fibers, meta-aramid fibers, anti-static fibers, and optionally para-aramid fibers. In some embodiments, the modacrylic fibers, meta-aramid fibers, and, if present, para-aramid fibers, may each be solution-dyed.

Aspects of the present disclosure describe systems, methods, and structures for distributed acoustic sensing using multi-band time-gated digital orthogonal frequency domain reflectometry.

A flame resistant fabric is disclosed herein. The fabric comprising blended yarns consists of: 40%-60% inherently flame resistant fibers, 20%-60% non-flame resistant cellulose fibers, and 5%-30% flame resistant aramid structural fibers. The fabric is evaluated by at least the following test methods: ASTM D6413; ASTM F1959; ASTM D3786; AATCC 61 Method A; AATCC 135; ASTM F2700; ASTM 1930; and ASTM 2894. The fabric also meets the ASTM 1506-19a and NFPA 2112-2018 test standard.

An elastic flame-resistant yarn containing an intimate fiber blend of staple fibers wrapped around a plurality of elastic continuous fibers. The intimate fiber blend of staple fibers contains non-flame-resistant (FR) cellulosic fibers, modacrylic fibers, and aramid fibers. The non-FR cellulosic fibers constitute at least about 31% by weight to at most about 54% by weight of the intimate fiber blend of staple fibers, the modacrylic fibers constitute at least about 30% by weight to at most about 49% by weight of the intimate fiber blend of staple fibers, and the aramid fibers make up at least about 3% by weight to at most about 20% by weight of the intimate fiber blend of staple fibers. The elastic continuous fibers make up at least about 0.01% by weight to at most about 5% by weight of the elastic flame-resistant yarn.

The present invention relates to a fabric containing a modacrylic fiber A and a cellulosic fiber, wherein the modacrylic fiber A contains an infrared absorber inside the fiber, and the fabric is dyed with at least a yellow cationic dye, a yellow reactive dye, and a yellow disperse dye. The fabric can be produced by dyeing a fabric containing a modacrylic fiber A and a cellulosic fiber with a cationic dye, a reactive dye, and a disperse dye to exhibit a fluorescent yellow color. Accordingly, it is possible to provide a fabric with excellent arc resistance and visibility, a method for producing the same, and a clothing item using the same.

Flame resistant fabrics that comply with applicable thermal requirements (e.g., char length, after flame, thermal shrinkage, etc.) but only include thermally stable fibers in yarns extending in a single fabric direction (warp or weft). The yarns extending in the other direction (warp or weft) are devoid of thermally stable fibers.

Ultraviolet blocking modacrylic fibers contain an anionic surfactant in an amount of 0.03 wt % or more. The ultraviolet protection factor (UPF) rating value of the ultraviolet blocking modacrylic fibers measured according to JIS L 1925: 2019 is UPF15 or more. Thus, ultraviolet blocking modacrylic fibers that are less likely to be discolored and have excellent ultraviolet blocking properties, an ultraviolet blocking fabric and a fiber product containing the ultraviolet blocking modacrylic fibers, and a method for manufacturing the ultraviolet blocking modacrylic fibers are provided.

Fabrics and garments are disclosed that have dual protection against flash fires and electrical arc flashes. The fabrics can be made from spun yarns containing an intimate blend of fibers. The fibers contained in each yarn can include modacrylic fibers, natural cellulose fibers, and inherently flame resistant fibers.

Embodiments of the present invention relate to flame resistant fabrics formed with inherently flame resistant fibers that provide the requisite thermal and arc protection, that have improved comfort, and that, in some embodiments, are less expensive than other fabrics formed with inherently flame resistant fibers. Improved comfort and lower cost can be achieved by predominantly locating the inherently flame resistant fibers on the front face of the fabric to impart the requisite thermal and arc protection and predominantly locating the more comfortable (and less expensive) fibers on the back face of the fabric positioned next to the wearer. In this way, overall protection of the fabric is maintained while improving comfort. Some embodiments of such fabrics may also achieve NFPA 70E PPE Category 2 protection.