The present invention belongs to the field of chemical textiles, and particularly relates to an ionic liquid method-based Juncao regenerated cellulose fiber and a preparation method therefor. The preparation method comprises: adding an ionic liquid and nickel chloride into a Juncao pulp; uniformly mixing same to obtain a mixture; and subjecting the mixture to swelling, dissolving, defoaming and dry-jet wet spinning formation and then drying same to obtain Juncao regenerated cellulose fibers. The present invention adds a catalyst, i.e. nickel chloride, during the process of dissolving cellulose in the ionic liquid so as to reduce the viscosity of the Juncao cellulose solution, and selects a mixed aqueous solution of ethanol and glycerol as a coagulation bath for the dry-jet wet spinning formation process so as to improve the dry elongation property of the Juncao cellulose fibers. The present invention optimizes the existing preparation processes for an ionic liquid method-based cellulose fiber, and provides the ionic liquid method-based preparation method suitable for a Juncao cellulose fiber.
D01F 2/02 - Filaments, ou similaires, artificiels, à un seul composant, formés de cellulose ou de dérivés de la celluloseLeur fabrication obtenus à partir de solutions de cellulose dans des acides, des bases ou des sels
2.
CELLULOSE FIBER REGENERATED FROM JUNCAO BY MEANS OF NMMO SOLVENT METHOD AND PREPARATION METHOD THEREFOR
Provided in the present invention are a cellulose fiber regenerated from Juncao by means of an NMMO solvent method and a preparation method therefor. The preparation method comprises the steps of: (1) adding a DMSO/NMMO mixed solvent to Juncao pulp, simultaneously adding an antioxidant and cobalt chloride thereto, and mixing same until uniform, so as to obtain a mixed system; and (2) swelling and dissolving the mixed system to obtain a Juncao viscose solution, and filtering, defoaming and spinning the Juncao viscose solution to obtain a cellulose fiber regenerated from Juncao. In the present invention, Juncao pulp is used to replace traditional cotton pulp and wood pulp, and the existing dissolution conditions for regenerated cellulose fibers are innovated, such that the problem of insufficient raw materials for the production of cellulose fibers at present is effectively relieved, and the prepared cellulose fiber regenerated from Juncao can reach the standard of first-class products.
D01F 2/02 - Filaments, ou similaires, artificiels, à un seul composant, formés de cellulose ou de dérivés de la celluloseLeur fabrication obtenus à partir de solutions de cellulose dans des acides, des bases ou des sels
D01F 1/02 - Addition de substances à la solution de filage ou à la masse fondue
A preparation method for a regenerated cellulose fiber, the preparation method specifically comprising: dissolving a cellulose raw material by using a cellulose solvent system to obtain a dissolved solution; adding a stabilizer into the dissolved solution, uniformly mixing, and filtering to obtain a cellulose spinning solution, wherein the stabilizer is a metal sulfate; defoaming and spinning the cellulose spinning solution to obtain a regenerated cellulose fiber. In the preparation method, the addition of the stabilizer can prevent cellulose macromolecules in the cellulose spinning solution from being excessively degraded, thus effectively protecting cellulose macromolecules in the spinning solution, improving the strength and toughness of the regenerated cellulose fiber prepared from the cellulose spinning solution, and the prepared regenerated cellulose fiber filament has high strength, good toughness and high quality.
D01F 2/02 - Filaments, ou similaires, artificiels, à un seul composant, formés de cellulose ou de dérivés de la celluloseLeur fabrication obtenus à partir de solutions de cellulose dans des acides, des bases ou des sels
D01F 1/02 - Addition de substances à la solution de filage ou à la masse fondue
Disclosed are a pulp for Juncao spinning and a preparation method and use thereof. The method includes: placing a Juncao in a solution prepared from a lye, a catalyst, and an auxiliary agent and cooking to obtain a cooked solution, and then subjecting the cooked solution to pulping to obtain the pulp for Juncao spinning.
D21H 11/12 - Pâte obtenue à partir de végétaux ou de récoltes non ligneux, p. ex. coton, lin, paille ou bagasse
D21B 1/02 - Traitement préalable des matières premières par des moyens chimiques ou physiques
D21C 3/00 - Réduction en pâte des matières contenant de la cellulose
D21C 3/02 - Réduction en pâte des matières contenant de la cellulose avec des bases inorganiques ou des composés à réaction alcaline, p. ex. procédés au sulfate
D21C 3/22 - Autres caractéristiques des procédés de réduction en pâte
D21C 9/14 - Blanchiment avec des halogènes ou des composés contenant des halogènes avec ClO2 ou des chlorites
A Juncao spinning pulp, and a preparation method therefor and the use thereof. The preparation method comprises: cooking Juncao in a solution prepared from an alkali liquor, a catalyst and an auxiliary agent, and then preparing a Juncao spinning pulp by means of a pulping process. Efficient preparation of a Juncao spinning pulp is achieved. Compared with the prior art, the Juncao spinning pulp has relatively high quality, good physical and chemical indexes, and a low degree of corrosion to production equipment, and the operation process is safe, stable and environmentally friendly, such that the comprehensive additional value of Juncao will be greatly improved, and the Juncao spinning pulp can be put into mass production by enterprises.
D01F 2/02 - Filaments, ou similaires, artificiels, à un seul composant, formés de cellulose ou de dérivés de la celluloseLeur fabrication obtenus à partir de solutions de cellulose dans des acides, des bases ou des sels
6.
BIOMASS JUNCAO REGENERATED CELLULOSE FIBER AND PREPARATION METHOD THEREFOR
Provided in the present invention are a biomass Juncao regenerated cellulose fiber and a preparation method therefor. The preparation method comprises: impregnation, pressing, aging, etiolation, dissolving, filtering, defoaming and spinning processes. A catalyst and an impregnation aid are added into an impregnation liquid in the impregnation process. In the present invention, a Juncao pulp is used to replace the traditionally used cotton pulp and wooden pulp, so as to innovate the traditional regenerated cellulose fiber production device and process, and a preparation method of the biomass Juncao regenerated cellulose fiber is established. The Juncao raw material used is high in yield and low in price, and the production process of the Juncao pulp is environment-friendly, thereby effectively relieving the problem of existing cellulose fiber production raw materials being insufficient. Meanwhile, after innovating the existing cellulose fiber production device, mass production of the Juncao cellulose fiber can be achieved, so that production cost is saved, and production requirements of textile enterprises are met.
D01F 2/06 - Filaments, ou similaires, artificiels, à un seul composant, formés de cellulose ou de dérivés de la celluloseLeur fabrication obtenus à partir de la viscose
