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.

The present invention relates to a method of producing a ribbon comprising bamboo fibers. The method comprises positioning the fibers on a conveyor and conveying the fibers in a transport direction, interconnecting the fibers by covering the fibers with thread and/or particles of a sticky material with at least one web forming device which is positioned above and/or below the conveyor and which ejects thread and/or particles. The formed thread and/or particles attaches to the fibers and forms a web which interconnects the fibers in order to form the ribbon and/or stitching the fibres together with at least one stitching device which is configured to stitch the individual fibers together in order to form the ribbon.

The present invention relates to a method of producing a ribbon comprising bamboo fibers. The method comprises positioning the fibers on a conveyor and conveying the fibers in a transport direction, interconnecting the fibers by covering the fibers with thread and/or particles of a sticky material with at least one web forming device which is positioned above and/or below the conveyor and which ejects thread and/or particles. The formed thread and/or particles attaches to the fibers and forms a web which interconnects the fibers in order to form the ribbon and/or stitching the fibres together with at least one stitching device which is configured to stitch the individual fibers together in order to form the ribbon.

A low-thermal-shrinkage polyester industrial yarn and preparation method thereof are provided. The low-thermal-shrinkage polyester industrial yarn is prepared by spinning and winding a modified polyester after solid-state polycondensation to increase viscosity. The preparation method of the modified polyester includes: after uniformly mixing terephthalic acid, ethylene glycol, 2,5-pyridinedicarboxylic acid and copper chloride, successively performing an esterification reaction and a polycondensation reaction to obtain the modified polyester. The polyester segments of the prepared low-thermal-shrinkage polyester industrial yarn comprises a terephthalic acid segment, an ethylene glycol segment and a 2,5-pyridinedicarboxylic acid segment, and 2,5-pyridinedicarboxylic acid segments of different polyester segments are coordinated by Cu.sup.2+. The molar ratio of the terephthalic acid segment to the 2,5-pyridinedicarboxylic acid segment is 1:(0.03-0.05). The O atom on a carbonyl group and the N atom on the pyridine of the 2,5-pyridinedicarboxylic acid segment are involved in the coordination.

A low-thermal-shrinkage polyester industrial yarn and preparation method thereof are provided. The low-thermal-shrinkage polyester industrial yarn is prepared by spinning and winding a modified polyester after solid-state polycondensation to increase viscosity. The preparation method of the modified polyester includes: after uniformly mixing terephthalic acid, ethylene glycol, 2,5-pyridinedicarboxylic acid and copper chloride, successively performing an esterification reaction and a polycondensation reaction to obtain the modified polyester. The polyester segments of the prepared low-thermal-shrinkage polyester industrial yarn comprises a terephthalic acid segment, an ethylene glycol segment and a 2,5-pyridinedicarboxylic acid segment, and 2,5-pyridinedicarboxylic acid segments of different polyester segments are coordinated by Cu.sup.2+. The molar ratio of the terephthalic acid segment to the 2,5-pyridinedicarboxylic acid segment is 1:(0.03-0.05). The O atom on a carbonyl group and the N atom on the pyridine of the 2,5-pyridinedicarboxylic acid segment are involved in the coordination.

Provided is yarn for a cell culture scaffold. The yarn for a cell culture scaffold according to an exemplary embodiment of the present invention includes slitting yarn produced by cutting a compressed nanofiber web to a predetermined width. Accordingly, by creating microenvironments suitable for migration, proliferation and differentiation of cells, cell viability may be enhanced and cells may be three-dimensionally proliferated. In addition, a scaffold according to the present invention has a mechanical strength sufficient for prevention of disruption of the scaffold which occurs during cell culture, such that cells may be stably proliferated. Further, the scaffold according to the present invention uses slitting yarn formed of the compressed nanofiber web, thereby having pores with various sizes, and therefore cell proliferation and cell viability may be enhanced by creation of an extracellular matrix-like environment.

Provided is yarn for a cell culture scaffold. The yarn for a cell culture scaffold according to an exemplary embodiment of the present invention includes slitting yarn produced by cutting a compressed nanofiber web to a predetermined width. Accordingly, by creating microenvironments suitable for migration, proliferation and differentiation of cells, cell viability may be enhanced and cells may be three-dimensionally proliferated. In addition, a scaffold according to the present invention has a mechanical strength sufficient for prevention of disruption of the scaffold which occurs during cell culture, such that cells may be stably proliferated. Further, the scaffold according to the present invention uses slitting yarn formed of the compressed nanofiber web, thereby having pores with various sizes, and therefore cell proliferation and cell viability may be enhanced by creation of an extracellular matrix-like environment.

Yarns include one or more strands, each strand including an outer twisted with a continuous or substantially continuous core, the outer including coarse wool fibres. The coarse wool has average fibre diameter greater than 26 microns. The yarn may be worsted or semi-worsted. Fabrics and/or garments may be produced from the yarn.

Dyeing of yarn to create indigo colored outer ring surrounding a white core. The techniques describe ways to keep the white core.

We have developed an environmentally-friendly new process for producing textile yarns. The process involves chemical modification of cellulose with subsequent dissolution of the chemically modified cellulose with chitosan or other amine group-containing compounds which yields a highly viscous gel. The chemical modification of cellulose employs a known process of periodate oxidation which we have modified to obtain fibers with a low degree of aldehyde groups (2 mmol/g cellulose) that still remain insoluble in water. After washing, the chemically modified fibers can be cross-linked with chitosan or other amine group-containing compounds to produce the viscous gel. The viscous gel can then be extruded through a syringe nozzle in the form of textile yarns.