137results about How to "Guaranteed spinnability" patented technology

The invention provides a cotton-simulated terylene short fiber. Concave pits are formed on the surface of the cotton-simulated terylene short fiber; and the cotton-simulated terylene short fiber comprises 0-1 percent by weight of calcium sulphate, 1-10 percent by weight of PEG (Polyethylene Glycol) and 1-10 percent by weight of ECDP (Easy Cationic Dyeable Polyester). The invention also provides a preparation method of the cotton-simulated terylene short fiber, comprising the following steps of: slicing the PET; drying a mixture of the calcium sulphate, the ECDP and the PEG and fusing and spinning the mixture into a terylene raw filament at 270-280DEG C by using a profile spinneret; carrying out winding, doffing, balanced bundle collection, wire guiding, pre-stretching and oiling; after primary or secondary stretching, dissolving out partial calcium sulphate in the soaking process by alkali treatment to form mocropores on the surfaces of fibers; and finally carrying out tense heat setting, curling, loosed heat setting, cutting and packaging to obtain the cotton-simulated terylene short fiber. The invention solves the problems that a compound spinning process in the prior art is not only complicated, but also has low yield and makes up the defects that the terylene has poor hydrophilicity and the textile is humid and muggy to wear.

The invention relates to a production technology of viscose extinction monofilament. The production technology takes cellulosic fiber pulp as a raw material and obtains viscose extinction monofilament through preparation of a spinning solution, injection before spinning, spinning and aftertreatment, and specifically comprises the following steps of: (A) preparing the spinning solution from the cellulosic fiber pulp through steeping, ageing, yellowing, dissolving, defoaming and filtering; (B) adding a titanium dioxide solution into the spinning solution so that the weight ratio of titanium dioxide to alpha cellulose content in the spinning solution reaches (0.5-5.0):100; and uniformly mixing and feeding for spinning; (C) feeding the spinning solution into a spinning machine, and enabling the spinning solution to pass through a spinneret orifice of a single-hole spray head under pressure, and solidifying and molding the formed viscose trickle to form raw silk strips, wherein the spray head is stretched by +60% to +80%, and an inlet channel of the spinneret orifice is in a parabola shape; and (D) performing aftertreatment: performing desulfurization, bleaching, oiling and drying on the raw silk strips to obtain the viscose flat monofilament. According to the production technology provided by the invention, the filament number of the prepared viscose monofilament is 50-6,000D, the strength is high over 75CN, and the requirements on dyeing, weaving and finished product taking are met; and moreover, the viscose extinction monofilament has gentle color and an extinction effect.

The invention discloses an antibacterial anti-mite viscose fiber and the manufacturing method. The fiber is characterized in that after antibacterial anti-mite solution is mixed with the viscose solution with the proportion of 0.1-2%, the spinning is run; and antibacterial anti-mite viscose fiber product with 30 of the number of monofilament, 0% of the deviation of the number of monofilament, 6. 3mg/100g of residue, 0.4% of oil percentage, 3. 5 grade of dyeing evenness, and 99. 6% of anti-mite ratio is obtained. The manufacturing method comprises preparing antibacterial anti-mite mother solution, preparing antibacterial anti-mite matching solution, rubbing and filtering the antibacterial anti-mite matching solution, mixing with the viscose, and filtering. The invention is benefit for human health and can improve the performance and added value of viscose fiber effectively. It is favor of environmental protection.

The invention discloses provides a far infrared bamboo charcoal viscose fiber and a preparation method thereof, in order to make up for the blank of the conventional far infrared bamboo charcoal viscose fiber and solve the problem of poor spinnability of the bamboo charcoal viscose fiber. The far infrared bamboo charcoal viscose fiber is characterized in that the fiber comprises 1-10 percent by weight of far infrared ceramic powder and 0.1-10 percent by weight of bamboo charcoal, wherein the far infrared emissivity is greater than 80 percent, the ammonia absorption rate is greater than or equal to 50 percent, the permeability is greater than or equal to 500 mm/s, and the color fastness to washing is class 4-5. The far infrared bamboo charcoal viscose fiber has a heat insulation effect; the radiated far infrared also has the health-care functions of activating cell tissues and promoting the blood circulation.

A directive preparing method of fiber products through polylactic acid polymeric welding flux belongs to high polymer materials application technology. It heats the polylactic acid polymeric welding flux which is prepared through the polymerization reaction in the polylactic acid polymerization reaction device by means of a welding flux conveyer which is connected between the discharge port of termination device discharge pump of polylactic acid polymerization reaction device and the feeding inlet of spinning runk, and guides the polylactic acid polymeric welding flux into spinning runk in positive pressure and thermal insulation state, then the spinning runk spins the guided polylactic acid polymeric welding flux and prepares fabric products. The advantages are: it avoids the impact of spinning performance caused by dry, it ensures spinning performance and also ensures the quality of fiber products; the polylactic acid polymeric welding flux is guided into spinning runk to spin from discharge pump and through welding flux conveyer, so the technology process is very simple and easy, the equipment investment is less; due to no granulating, dewatering, drying, screw bolt squeezing and melting, energy consumption can be saved more than one third, it is useful for reducing the cost of fiber products.

The present invention relates to a preparation method of a polyacrylonitrile-based precursor, and mainly solves the problems that in the prior art bubbles in a material sprayed out by a filter cannot be completely eliminated, spinnability is poor, wire broken rate is high, and a carbon fiber precursor obtained by spinning is low in strength and unstable in performance. The preparation method well solves the problems, and the preparation method includes the following steps: 1) solvent dimethyl sulfoxide, first monomer acrylonitrile, a second monomer itaconic acid and initiator azodiisobutyronitrile are polymerized to obtain a spinning stock solution, and a high performance polyacrylonitrile copolymer spinning stock solution is obtained by filtering after demonomerisation and defoaming of the spinning stock solution; nascent fiber is obtained by jet extrusion and consolidation forming; and a high-performance polyacrylonitrile carbon fiber precursor is obtained by drawing, water washing, oiling, compacting by drying, steam stretching, heat-setting and collection of the nascent fiber; and the method can be used for the industrial production of the carbon fiber precursor.

The invention relates to a photochromic viscose fiber and a preparation method thereof, belonging to the technical field of textile. The photochromic viscose fiber is prepared from an adhesive, photochromic microcapsules and a fiber reinforced agent, wherein the content of the photochromic microcapsules is 1-20wt%, and the content of the fiber reinforced agent is 0.1-10wt%. The preparation method of the photochromic viscose fiber comprises the following steps: (1) dissolving the photochromic microcapsules and the fiber reinforced agent into water to form dispersed viscose emulsion; (2) feeding the dispersed viscose emulsion into viscose to be spun, and mixing; (3) molding by spinning in an acid bath to obtain a photochromic viscose fiber product. The photochromic viscose fiber is simple and reasonable in components and simple in preparation method; the obtained fiber is uniform in whole color change; the strength of the photochromic viscose fiber reaches or exceeds that of the conventional viscose fiber, so that the demand of fabric manufacture can be met.

The invention provides a bamboo charcoal viscose fiber rich in nano-copper and a preparation method of the bamboo charcoal viscose fiber in order to meet demands of clients in a product market and solve the problem that the conventional bamboo charcoal viscose fiber is poor in spinning property. The bamboo charcoal viscose fiber rich in nano-copper is characterized by being prepared by mixing a nano-copper bamboo charcoal solution with viscose throug injection before spinning, and carrying out wet spinning and post-treatment; the nano-copper bamboo charcoal solution is formed by mixing masterbatches containing the nano-copper and a bamboo charcoal solution. The fiber comprises the components by weight percent: 0.01-5 percent of nano-copper and 0.1-10 percent of bamboo charcoal; the ammonia absorption rate is more than or equal to 50 percent; the air permeability is more than or equal to 500mm/s; the color fastness to washing is of 4-5 level. The bamboo charcoal viscose fiber rich in the nano-copper has functions of ultraviolet prevention and deodorization and is high in air permeability and absorptivity; furthermore, the antibacterial effect of the bamboo charcoal viscose fiber is better than that of the common bamboo charcoal fiber; the breaking strength of the fiber is high, and the cost is low.

The invention provides an anti-ultraviolet bamboo charcoalviscose fiber and a preparation method thereof in order to meet demands of clients in a product market and solve the problem that the conventional bamboo charcoalviscose fiber is poor in spinning property. The anti-ultraviolet bamboo charcoalviscose fiber is characterized by being obtained by mixing an anti-ultraviolet bamboo charcoal solution with mucilage glue through spinning before injection, and carrying out wet spinning and post-treatment, wherein the anti-ultraviolet bamboo charcoal solution is formed by mixing an anti-ultraviolet masterbatches and a bamboo charcoal solution; the anti-ultraviolet masterbatches contain an anti-ultraviolet agent. The fiber comprises the components by weight percent: 0.01-10 percent of the anti-ultraviolet agents and 0.1-10 percent of bamboo charcoal; the ultraviolet shielding rate is more than or equal to 95 percent, the ammonia absorption rate is more than or equal to 50 percent, and the air permeability is more than or equal to 500mm/s; the color fastness to washing is of 4-5 level. The anti-ultraviolet bamboo charcoalviscose fiber has functions of ultraviolet prevention and deodorization and is high in air permeability and absorptivity; furthermore, the anti-ultraviolet effect of the anti-ultraviolet bamboo charcoalviscose fiber is better than that of the common bamboo charcoal fiber; the breaking strength of the fiber is high, and the cost is low.

The invention discloses pearl regenerated cellulose fiber and a preparation method thereof. The pearl regenerated cellulose fiber is prepared by adding a pearl emulsion containing pearl micropowder into soluble glue during the preparation of spinning glue, evenly mixing the mixture, and then performing filtration, defoaming and spinning working procedures, wherein two-bath spinning, plasticizing bath drawing molding and multi-stage drawing molding processes are adopted during the spinning, the pearl content in the fiber is 2 to 10 percent of the mass of alphacellulose, the total mass content of amino acid in the fiber is more than or equal to 0.02 percent, and the fiber contains more than or equal to 12 kinds of trace elements. The production method ensures the even distribution of the pearl micropowder in the spinning glue, can also remove a trace amount of pearl micropowder with large particle size through the filtration, and ensures the spinnability of the prepared fiber; and the mild two-bath spinning, plasticizing bath molding and multi-stage drawing molding processes reduce the loss of the pearl micropowder and ensure the effective content of the pearl micropowder in the fiber.

The invention relates to a preparing method for an ordinary-pressure positive-ion dyeable polyester fiber. The preparing method includes the steps that dimethyl isophthalate-5-sodium benzenesulfonate,ethylene glycol, a catalyst and an anti-ether agent are mixed to be subjected to an ester exchange reaction, the reaction is end, then ethylene glycol and sodium ethylene glycol are added, modulationis carried out, then terephthalic acid, ethylene glycol and a catalyst are mixed, and the mixture is subjected to an esterification reaction; the modulated product after the ester exchange reaction is end and polyethylene glycol are added into an esterification reaction system reaching the end point of the esterification reaction, condensation polymerization is carried out, and spinning melt is obtained; the spinning melt is measured, extruded, cooled, subjected to oil applying, stretched, subjected to heat setting and wound, and the ordinary-pressure positive-ion dyeable polyester fiber is prepared. According to preparing method, generation of impurities in the polyester-fiber production process is reduced, pressure rising of a spinning assembly and a filter is reduced accordingly, the service cycle of the polyester fiber is prolonged, the continuity and the safety of the whole production process are guaranteed, and the preparing method has the good economic value and popularizationvalue.

The invention relates to a back flushing filter. A back flushing drainage port between a connecting pipe and a central drainage pipe is opened and closed through displacement of front and back two pistons and the connecting pipe under the control of a screw rod, and a filtrate flows reversely on a filtering layer due to the pressure change occurring on a water outlet after the drainage port is opened, so that impurities clamped in the filtering layer are flushed out of the drainage port. The back flushing filter is an acrylic fiber spinning raw liquid automatic back flushing filter which has the advantages of continuous operation, high filtering efficiency, small floor area, capability of recovering waste liquid and the like, gel particles, insoluble mechanical impurities and the like existing in a spinning raw liquid can be effectively filtered, and the spinnability of the acrylic fiber spinning raw liquid and the performance of fiber are ensured.

The invention relates to a production process of fine denier viscose staple fiber, and belongs to the technical field of production of the viscose staple fiber. In the spinning step, a formed silk is guided and drafted by a silk guiding device and a drafting device; and in the silk guiding and drafting process, the total drafting rate is controlled at 130-160%, wherein the spinneret drafting rate is controlled at 60-80%, the air drafting rate is controlled at 25-40% and the plastic drafting rate is controlled at 5-12%. Through selection of the total drafting rate and various drafting rate allocations, in the spinning forming process and in the plastic state, neat arrangement of cellulose macromolecules of the fine denier staple viscose fiber is facilitated, rapid and high-quality formation of a crystalline area in the fiber is facilitated, and thus the fine denier viscose staple fiber is ensured to reach a higher strength index.

A poly - lactic acid polymerization fusant directly preparing fiber method belongs to high molecular material applied technology field. It contains installing fusant pipe located in jacket between polyreaction device discharging pump material outlet and spinning box feed inlet, discharging pump directly feeding obtained poly - lactic acid polymerization fusant into spinning box through fusant pipe, leading-in heat-insulated heat conducting medium to jacket internal circulation, spinning box to make spinning to led poly - lactic acid polymerization fusant to obtain fiber products. Said invention has advantages of ensuring fiber quality and simple technological process.

The invention relates to a cool anti-perspective polyester fabric and a preparation method thereof. The cool anti-perspective polyester fabric is formed in a way that warps and wefts are interweaved, the warps and wefts are anti-perspective DTY fibers, the anti-perspective DTY fibers are non-separating orange-type two-component composite fibers, and comprises 0.1-0.8wt% of a slip agent, non-separating means that the two components are good in compatibility; two components comprise a polymer and a polymer containing 5-16wt% of TiO2, and the polymer containing 5-16wt% of TiO2 accounts for 6-30wt% of the anti-perspective DTY fiber; in the anti-perspective DTY fibers, the polymer containing 5-16wt% of TiO2 takes the center of circle as the starting point and is distributed in a sector manner, the radius of the sector is 4/5-11/12 of the radius of the anti-perspective DTY fiber; and the opacity of the anti-perspective DTY fiber reaches 99%-100%. The anti-perspective DTY fiber is high in opacity, the physical index of the anti-perspective DTY fiber is very nearly the same as that of a conventional fiber; woven fabrics have an obvious shading effect, transmission of visible light is greatly reduced, and the transmission of visible light is almost zero.