D01F1/07

FLAME-RESISTANT GARMENTS AND FABRICS WITH YARNS COMPRISING A POLYMER BLEND OF META-ARAMID AND POLYVINYLPYRROLIDONE

A flame-resistant garment comprising a flame-resistant fabric, and the flame resistant fabric, each comprising a yarn comprising a) 85 to 97 weight percent of a meta-aramid fiber component, and b) 3 to 15 weight percent of a fiber made from para-aramid polymer, based on the total amount of a) and b) in the yarn; wherein the meta-aramid fiber component is: i) 50 to 100 weight percent fiber made from a polymer blend of meta-aramid polymer and polyvinylpyrrolidone (PVP) polymer, the polymer blend comprising 88 to 95 weight percent meta-aramid polymer and 5 to 12 weight percent PVP polymer, and ii) 0 to 50 weight percent fiber made solely from meta-aramid polymer, based on the total amount of i) and ii) in the meta-aramid fiber component.

POLYMER COMPOSITIONS FOR FLAME RETARDANCY AND/OR IMPROVED MELT DRIPPING PROPERTIES

Compositions with improved flame properties and with improved melt dripping properties can include a first polymer and a reactive component. The first polymer may be nylon or polyethylene terephthalate (PET). The composition can be formed into fibers and woven into a fabric. Crosslinking of the first polymer or of the first polymer and the reactive component can provide the improved properties.

POLYMER COMPOSITIONS FOR FLAME RETARDANCY AND/OR IMPROVED MELT DRIPPING PROPERTIES

Compositions with improved flame properties and with improved melt dripping properties can include a first polymer and a reactive component. The first polymer may be nylon or polyethylene terephthalate (PET). The composition can be formed into fibers and woven into a fabric. Crosslinking of the first polymer or of the first polymer and the reactive component can provide the improved properties.

PROCESS FOR THE MANUFACTURE OF A FIBER COMPRISING META-ARAMID

A process for manufacturing a fiber including meta-aramid having a breaking tenacity of at least 300 mN/tex including the steps of preparing a spin dope including meta-aramid and sulfuric acid having a concentration of at least 80 wt % and passing the spin dope through a spinneret into a coagulation bath, wherein the spin dope has a meta-aramid concentration of at least 10 wt %. The invention also pertains to a meta-aramid fiber, a multifilament yarn, a textile sheet and protective clothing.

PROCESS FOR THE MANUFACTURE OF A FIBER COMPRISING META-ARAMID

A process for manufacturing a fiber including meta-aramid having a breaking tenacity of at least 300 mN/tex including the steps of preparing a spin dope including meta-aramid and sulfuric acid having a concentration of at least 80 wt % and passing the spin dope through a spinneret into a coagulation bath, wherein the spin dope has a meta-aramid concentration of at least 10 wt %. The invention also pertains to a meta-aramid fiber, a multifilament yarn, a textile sheet and protective clothing.

CORE-SHEATH COMPOSITE FIBER FOR ARTIFICIAL HAIR, HEADWEAR PRODUCT INCLUDING SAME, AND PRODUCTION METHOD FOR SAME
20220372669 · 2022-11-24 · ·

A core-sheath conjugate fiber for artificial hair including a core part and a sheath part is provide. The core part includes a polyester-based resin composition that contains a polyester-based resin and the sheath part is comprised of a polyamide-based resin composition that contains a polyamide-based resin. The core-sheath conjugate fiber for artificial hair has a single fiber fineness of 20 dtex or more and 80 dtex or less and a coefficient of variation of the single fiber diameter of 10% or more and 40% or less. With this configuration, a core-sheath conjugate fiber for artificial hair that has a touch close to that of human hair and a good gloss, a hair ornament product including the same, and a method for producing the same are provided.

CORE-SHEATH COMPOSITE FIBER FOR ARTIFICIAL HAIR, AND HEADWEAR PRODUCT INCLUDING SAME
20220372663 · 2022-11-24 · ·

A core-sheath conjugate fiber for artificial hair having a core-sheath structure including a core part and a sheath part is provided. Both the core part and the sheath part contain a bromine-based flame retardant and a flame retardant auxiliary. The core part includes a core part resin composition containing the bromine-based flame retardant and the flame retardant auxiliary in a total amount of 20 parts by weight or more and 40 parts by weight or less with respect to 100 parts by weight of a main component resin. The sheath part includes a sheath part resin composition containing the bromine-based flame retardant and the flame retardant auxiliary in a total amount of 10 parts by weight or more and 25 parts by weight or less with respect to 100 parts by weight of a main component resin.

CORE-SHEATH COMPOSITE FIBER FOR ARTIFICIAL HAIR, AND HEADWEAR PRODUCT INCLUDING SAME
20220372663 · 2022-11-24 · ·

A core-sheath conjugate fiber for artificial hair having a core-sheath structure including a core part and a sheath part is provided. Both the core part and the sheath part contain a bromine-based flame retardant and a flame retardant auxiliary. The core part includes a core part resin composition containing the bromine-based flame retardant and the flame retardant auxiliary in a total amount of 20 parts by weight or more and 40 parts by weight or less with respect to 100 parts by weight of a main component resin. The sheath part includes a sheath part resin composition containing the bromine-based flame retardant and the flame retardant auxiliary in a total amount of 10 parts by weight or more and 25 parts by weight or less with respect to 100 parts by weight of a main component resin.

CORE-SHEATH COMPOSITE FIBER FOR ARTIFICIAL HAIR, HEADWEAR PRODUCT INCLUDING SAME, AND PRODUCTION METHOD FOR SAME
20220372668 · 2022-11-24 · ·

A core-sheath conjugate fiber for artificial hair including a core part and a sheath part is provided. The core part contains a polyester-based resin composition containing a polyester-based resin, and the sheath part contains a polyamide-based resin composition containing a polyamide-based resin. The core-sheath conjugate fiber for artificial hair has a core-to-sheath area ratio of core:sheath=2:8 to 8:2 and includes a hollow part, and the area of the hollow part constitutes 7% or more and 40% or less of the area of a fiber cross section. A core-sheath conjugate fiber for artificial hair that has a touch close to that of human hair and good voluminousness and curl setting property, and a hair ornament product including the same, and a method for producing the same are provided.

Extruded polyacrylonitrile copolymer

The invention relates to a polymeric fibre derived from a copolymer of polyacrylonitrile and a comonomer. The fibre comprises a metal ion and/or silicon at from about 1 to about 15 wt %. A process for making the fibre is also described.