Patent classifications
D01F1/07
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.
CORE-SHEATH COMPOSITE FIBER FOR ARTIFICIAL HAIR AND HEADWEAR PRODUCT THAT INCLUDES SAME
A core-sheath conjugate fiber for artificial hair has a core-sheath structure including a core and a sheath covering the core. The core is composed of a core resin composition containing a polyester-based resin, and the sheath is composed of a sheath resin composition containing a polyamide-based resin. The core resin composition contains a bromine-based flame retardant and a flame retardant auxiliary. The sheath resin composition contains a phosphorus-based flame retardant. The phosphorus-based flame retardant contains at least one selected from the group consisting of a zinc phosphinate and a condensed phosphate ester compound.
Production of an artificial turf fiber with a non-circular cladding
A method for producing an artificial turf fiber, comprising: preparing a core polymer mixture from a core polymer and a thread polymer forming beads within the core polymer; coextruding the core polymer mixture with a cladding polymer component into a monofilament, the core polymer mixture forming a cylindrical core, The cladding polymer component forming a cladding encompassing the core with a non-circular profile; quenching the monofilament; reheating the quenched monofilament; stretching the reheated monofilament to deform the beads into threadlike regions; and providing one or more of the stretched monofilaments as the artificial turf fiber.
FLAME RETARDANT LYOCELL FILAMENT
The invention relates to a filament having flame retardant properties, as well as methods for its preparation and its use. The filament according to the invention are Lyocell filaments.
FLAME RETARDANT LYOCELL FILAMENT
The invention relates to a filament having flame retardant properties, as well as methods for its preparation and its use. The filament according to the invention are Lyocell filaments.
WASHABLE FLAME RETARDANT VISCOSE FABRIC
The disclosure discloses a washable flame retardant viscose fabric. The viscose fabric includes a flame retardant viscose fiber; and a method of preparing the viscose fiber includes the following steps: impregnation, squeezing, ageing, yellowing, addition before spinning, spinning, bundling, drafting, cutting off, first washing, desulfurization, second washing, pickling, third washing, application of oil bath, drying, and packaging. Before spinning, an aqueous dispersion of flame retardant, an aqueous dispersion of hyperbranched nanocellulose and a dispersant are uniformly added to a spinning glue using a pre-spinning injection system. During the production of the flame retardant viscose used, the aqueous dispersion of flame retardant, the aqueous dispersion of hyperbranched nanocellulose and the dispersant are introduced into the spinning glue by the pre-spinning injection system before spinning, so that the flame retardant has a high residual rate in the subsequent coagulation bath.
WASHABLE FLAME RETARDANT VISCOSE FABRIC
The disclosure discloses a washable flame retardant viscose fabric. The viscose fabric includes a flame retardant viscose fiber; and a method of preparing the viscose fiber includes the following steps: impregnation, squeezing, ageing, yellowing, addition before spinning, spinning, bundling, drafting, cutting off, first washing, desulfurization, second washing, pickling, third washing, application of oil bath, drying, and packaging. Before spinning, an aqueous dispersion of flame retardant, an aqueous dispersion of hyperbranched nanocellulose and a dispersant are uniformly added to a spinning glue using a pre-spinning injection system. During the production of the flame retardant viscose used, the aqueous dispersion of flame retardant, the aqueous dispersion of hyperbranched nanocellulose and the dispersant are introduced into the spinning glue by the pre-spinning injection system before spinning, so that the flame retardant has a high residual rate in the subsequent coagulation bath.
FIRE RETARDANT NYLON FIBERS AND METHODS FOR MAKING THEM
Provided are nylon fibers having fire-retardant agents dispersed therein and methods for manufacturing such fibers. The fire-retardant agents may comprise Tris(tribromophenyl) triazine and/or antimony trioxide. Fabrics made from such fibers are also provided.
FIRE RETARDANT NYLON FIBERS AND METHODS FOR MAKING THEM
Provided are nylon fibers having fire-retardant agents dispersed therein and methods for manufacturing such fibers. The fire-retardant agents may comprise Tris(tribromophenyl) triazine and/or antimony trioxide. Fabrics made from such fibers are also provided.
TEXTILE RECYCLING
A textile recycling method receives textile-waste-to-be-recycled, sorts the waste to isolate cellulose-containing articles from non-cellulose-containing articles, and re-sizes at least some of the cellulose-containing articles to create feedstock. The feedstock is processed in a cellulose solvent reactor, which has at least one ionic liquid. The ionic liquid dissolves intermolecular cellulose bonds of the feedstock to create a spinning dope. Cellulose fibers dissolved in the cellulose-bearing spinning dope solution are extruded in a cellulose coagulation bath reservoir to reconstitute at least some of the cellulose fibers, and the reconstituted fibers are wet-spun to form a continuous cellulose thread that is commercially indistinguishable from virgin fiber thread. Synthetic fiber material is vacuum-extracted or mechanically extracted from the cellulose-bearing solution and recycled into a continuous synthetic thread. Original color of textile-waste-to-be-recycled can be retained or removed, and new color can be added.