A flame-retardant fiber composite includes an acrylic fiber A containing an acrylic copolymer and an aramid fiber. The acrylic fiber A is substantially free of an antimony compound, and the flame-retardant fiber composite forms a surface-foamed char layer when burned. A flame-retardant work clothing includes the flame-retardant acrylic fiber. A highly flame-retardant fiber composite and highly flame-retardant work clothing include an acrylic fiber, and are capable of exhibiting high flame retardancy while suppressing environmental impacts caused by a flame retardant.

A flame-retardant fiber composite includes an acrylic fiber A containing an acrylic copolymer and an aramid fiber. The acrylic fiber A is substantially free of an antimony compound, and the flame-retardant fiber composite forms a surface-foamed char layer when burned. A flame-retardant work clothing includes the flame-retardant acrylic fiber. A highly flame-retardant fiber composite and highly flame-retardant work clothing include an acrylic fiber, and are capable of exhibiting high flame retardancy while suppressing environmental impacts caused by a flame retardant.

The present invention relates to a flame-retardant fabric that includes modacrylic fibers, one or more of regenerated cellulose fibers selected from the group consisting of flame-retardant rayon fibers and lyocell fibers, and polyimide fibers. The flame-retardant fabric includes the modacrylic fibers in an amount of 26 to 79 wt%, the regenerated cellulose fibers in an amount of 18 to 48 wt%, and the polyimide fibers in an amount of 3 to 26 wt%. The polyimide fibers have a fiber length of 45 to 127 mm. The char length measured by a flammability test based on GB/T 5455-1997 is 50 mm or less. The present invention also relates to protective clothing made of the flame-retardant fabric. Thus, the present invention provides a flame-retardant fabric whose char length is short in a flammability test and that has favorable flame retardancy, and protective clothing made of the flame-retardant fabric.

The present invention relates to a flame-retardant fabric that includes modacrylic fibers, one or more of regenerated cellulose fibers selected from the group consisting of flame-retardant rayon fibers and lyocell fibers, and polyimide fibers. The flame-retardant fabric includes the modacrylic fibers in an amount of 26 to 79 wt%, the regenerated cellulose fibers in an amount of 18 to 48 wt%, and the polyimide fibers in an amount of 3 to 26 wt%. The polyimide fibers have a fiber length of 45 to 127 mm. The char length measured by a flammability test based on GB/T 5455-1997 is 50 mm or less. The present invention also relates to protective clothing made of the flame-retardant fabric. Thus, the present invention provides a flame-retardant fabric whose char length is short in a flammability test and that has favorable flame retardancy, and protective clothing made of the flame-retardant fabric.

Protective garments are disclosed having an inner lining with high lubricity and high strength characteristics. The inner lining, in one embodiment, contains spun yarns combined with para-aramid multifilament yarns. The spun yarns may also contain flame resistant fibers, such as meta-aramid fibers, FR cellulose fibers, or mixtures thereof. The para-aramid filament yarns provide excellent strength characteristics to the fabric. In addition, in some embodiments, the multifilament yarns may enhance the fire resistant properties of the fabric. In one embodiment, the para-aramid filament yarns may have less than five twists per inch, such as from about 1 twist per inch to about four twists per inch.

Protective garments are disclosed having an inner lining with high lubricity and high strength characteristics. The inner lining, in one embodiment, contains spun yarns combined with para-aramid multifilament yarns. The spun yarns may also contain flame resistant fibers, such as meta-aramid fibers, FR cellulose fibers, or mixtures thereof. The para-aramid filament yarns provide excellent strength characteristics to the fabric. In addition, in some embodiments, the multifilament yarns may enhance the fire resistant properties of the fabric. In one embodiment, the para-aramid filament yarns may have less than five twists per inch, such as from about 1 twist per inch to about four twists per inch.

A composite fabric includes a first fabric layer and a plurality of insulating structures adjacent to the first fabric layer. Each of the plurality of insulating structures include a fabric shell defining a cavity and an insulating material located within the cavity. In further aspects a composite fabric includes a plurality of insulating structures separated by a plurality of spacers. Each of the plurality of spacers includes a fabric material and each of the plurality of insulating structures includes a fabric shell defining a cavity and an insulating material located within the cavity.

A communications node includes an apparel item in the form of a harness that includes a primary portion. A halo element extends from the primary portion and is configured to be worn about the neck. A fastener that demountably couples the primary portion to the halo element. An antenna element positioned within the apparel item. An A/V hub is affixed to the halo portion and configured to receive audio/video input. The apparel item also includes a communications device and battery. A control circuit is communicatively coupled to the antenna element, the A/V hub, the communications device, and the battery. The A/V hub demountably and communicatively couples to an audio/video source. The control circuit is configured to establish a self-organizing WAN with computing devices that connect directly, dynamically, and non-hierarchically to the WAN. The antenna elements include a graphene polymer conductive composition. The apparel item is multilayered and reflects RF radiation.

A communications node includes an apparel item in the form of a harness that includes a primary portion. A halo element extends from the primary portion and is configured to be worn about the neck. A fastener that demountably couples the primary portion to the halo element. An antenna element positioned within the apparel item. An A/V hub is affixed to the halo portion and configured to receive audio/video input. The apparel item also includes a communications device and battery. A control circuit is communicatively coupled to the antenna element, the A/V hub, the communications device, and the battery. The A/V hub demountably and communicatively couples to an audio/video source. The control circuit is configured to establish a self-organizing WAN with computing devices that connect directly, dynamically, and non-hierarchically to the WAN. The antenna elements include a graphene polymer conductive composition. The apparel item is multilayered and reflects RF radiation.

A light weight flexible flame, arc flash and flash fire resistant fabric for protective garments is made from a flexible polyvinylchloride sheet having phthalate or phthalate free plasticizers coated with well defined parallel lines or grids of adhesive layer. The adhesive coated polyvinylchloride sheet contacts a non-woven meta-aramid fiber liner and is heated to produce a bond between the polyvinylchloride sheet and the liner. Both polyvinylchloride sheet and meta-aramid non-woven liner resist heat. When heat from arc flash or flash fire is applied, the heat is conducted away at local contacting regions of the adhesive with the polyvinylchloride sheet to the liner whereby the temperature of the polyvinylchloride is locally reduced preventing sagging, charring or burning of the space between adhesive contacting regions. This structure produces mechanically strong lightweight arc flash and flash fire resistant fabric suited for producing garments that meet all ASTM specifications for fireproof garments.