CN105401332A - Method and equipment preparing viscose filament non-woven fabric through wet spinning technology - Google Patents
Method and equipment preparing viscose filament non-woven fabric through wet spinning technology Download PDFInfo
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- CN105401332A CN105401332A CN201510854990.XA CN201510854990A CN105401332A CN 105401332 A CN105401332 A CN 105401332A CN 201510854990 A CN201510854990 A CN 201510854990A CN 105401332 A CN105401332 A CN 105401332A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
- D04H1/28—Regenerated cellulose series
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/103—De-aerating
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/106—Filtering
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/724—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
Abstract
The invention discloses a method and equipment preparing viscose filament non-woven fabric through wet spinning technology; the method comprises the following steps: 1, spinning technology, spinning dope preparation; 2, spinning soup solidification reaction; 3, viscose formation; 4, washing; 5, drying: non-woven fabric formation technology; 6, lapping: uniformly scattering and lapping dried primary viscose fiber beams on a lapper web curtain, thus forming intersecting stacked filament fiber web; 7, spunlace reinforcement; 8, baking; 9, winding. The equipment comprises a wet spinning device and a non-woven fabric forming device; related steps in a conventional wet spinning technology can be omitted; semi-finish viscose filament can be directly used for non-woven fabric production; in the prior art, finished fiber filaments are secondarily used for non-woven fabric production; the novel method can break the conventional concept, can effectively save production cost, can reduce environment pollution in the production process, and can improve production efficiency.
Description
Technical field
The invention belongs to technical field, particularly a kind of Processes and apparatus based on wet spinning technology Making viscose fiber filament nonwoven fabric.
Background technology
Nonwoven fabric (English name: NonWovenFabric or Nonwovencloth) is also known as Nonwovens, it is a kind of non-weaving cloth, be made up of orientation or random fiber, be environment-friendly materials of new generation, there is protection against the tide, ventilative, pliable and tough, light weight, not combustion-supporting, easy decomposition, nontoxic nonirritant, rich color, the feature such as to use again cheap, capable of circulation.As adopted polypropylene (pp material) pellet to be raw material more, batch continuous one-step produce through high-temperature fusion, spray silk, lapping, hot pressing.Cloth is called because having the outward appearance of cloth and some performance.Because it a kind ofly does not need to spin cotton and weave cloth and the fabric that formed, just textile staple or long filament are carried out orientation or random alignment, form fibre net structure, then adopt machinery, the method such as hot sticky or chemical reinforces and form.Have the tencel goods of softness, ventilative and planar structure, advantage does not produce Soft flocks, tough, durable, silkiness is soft, also be the one of reinforcing material, and also have the sensation of cotton, compare with cotton goods, the sack of nonwoven fabric is easily shaped, and low cost.Bonded fabric product rich color, bright-coloured bright and beautiful, Eco-Fashion, of many uses, elegant in appearance, pattern and style are all various, and light weight, environmental protection, use more capable of circulation, by internationally recognized be ecological environment-friendly products of preserving our planet.Be applicable to agricultural film, shoemaking, process hides, mattress, child-mother-covering, decoration, chemical industry, printing, automobile, building materials, the industries such as furniture, and PADDING CLOTH, health care disposable surgical clothing, mouth mask, cap, sheet, the disposable tablecloth in hotel, beauty treatment, the gift bag of Saunas and even current fashion, fine work bag, shopping bag, advertising bag etc.Environment-friendly products, of many uses, economical and practical.According to different application field, it can have: light weight, softness, drying, ventilative, nontoxic, nonirritant, antibacterial, chemical resistance medicament, antibiotic property.Preparing nonwoven fabric at present mainly directly utilizes high polymer (spinning) section, staple fibre or long filament that fiber is become net by air-flow or machinery, then sting through water, acupuncture, or hot rolling is reinforced, eventually pass the cloth without braiding that Final finishing is formed, namely fiber is prepared after dry spinning, and staple card can be adopted to become net, or adopt the spunbond one-tenth net of fiber filament, its production technology mainly comprises spun-bond process, meltblown, Hot rolling, water acupuncture manipulation, needle point method.Because it a kind ofly does not need to spin cotton and weave cloth and the fabric that formed, just textile staple or long filament are carried out orientation or random alignment, form fibre net structure, then adopt machinery, the method such as hot sticky or chemical reinforces and form.Non-weaving cloth breaches traditional weaving principle, and have that technological process is short, throughput rate is fast, the features such as output is high, cost is low, purposes is wide, raw material sources are many.
Filament non-woven fabric is all adopt spun-bond process to prepare filament non-woven fabric in field of textiles and actual production, be extruded at polymer, stretch and after forming continuous filament yarn, long filament is laid to net, fibre web through self bonding, heat bonding, chemical adhesion or mechanical consolidation method, makes fibre web become nonwoven fabric again.Continuous filament yarn prepares nonwoven fabric: adopt spun-bond process; Nonwoven fabric prepared by staple fibre: adopt acupuncture, water thorn or heat viscosity method to reinforce after mixing, shredding, carding.Filament non-woven fabric is compared with staple fiber nonwoven fabric, nonwoven fabric can be made more thin, intensity is better, but prepare filament non-woven fabric at present and mostly adopt spun-bond process, fiber also can only use the hot melt synthetic fiber such as terylene, polypropylene fibre, polyamide fibre and spandex, cannot prepare with the regenerated fiber of superior performance, although and synthetic fiber intensity is good, but flexibility, water imbibition and comfortableness are all poor, this is subject to obvious restriction in the Application Areas of filament non-woven fabric.At present, the main technological steps of wet spinning is: shredding-drying-shredding-packing is washed-wet to spinning solution-solidify-wash-reel-boundling-stretching-curling-cut-out-secondary.Concrete technology flow process is: the 1. preparation of viscose glue: comprise the operations such as dipping, squeezing, pulverizing, aging, yellow, dissolving, maturation, filtration, deaeration.2. spinning technique: adopt wet spinning.Viscose glue forms thread by spinneret orifice and enters containing sour coagulating bath, and in viscose glue, alkali is neutralized, and thread is frozen into strand, and cellulose xanthate transformation tissue culture becomes cellulose.3. post processing: after being shaped fiber need through wash, neutralize, wash again, to oil and the post processing such as drying is processed.Wet spinning not only needs the preparation of of a great variety, bulky stoste and spins front preparation machine, but also will have coagulating bath, circulation and reclaimer, and its technological process is complicated, factory building and equipment investment expense is large, spinning speed is low, and therefore cost is higher.The method can obtain staple fibre, also can obtain fiber filament, traditional application be staple fibre directly by with other fiber blends, after carding, carry out the production of nonwoven fabric, fiber filament is directly delivered to the enterprising hand-manipulating of needle of loom and to be knitted or woven after packing.It can thus be appreciated that, expect filament non-woven fabric, dry spinning can only be adopted to obtain through spunbond one-tenth net post-reinforcing, if cut into staple fibre again because of fiber filament after wet spinning and other fiber cardings produce nonwoven fabric, because the complex process of wet spinning own, cost are higher, doing the production cost by greatly increasing nonwoven fabric like this, adding the complexity of technique.In field of textiles, there is no anyone at present expect with wet spinning technology in the process of Making viscose fiber filament, utilize water sting step carry out cleaning, save winding, boundling, stretching, curling, cut off, secondary washing, shredding of wetting, drying, shredding and packing multiple processing steps, carry out lapping and reinforce the technique of directly producing nonwoven fabric
CN103320968A discloses a kind of manufacture method of filament non-woven fabric, and this manufacture method adopts following processing step: first utilize creel filament fiber unwinding to be got off; Filament fiber comprises polyphenylene sulfide fibre, aramid fiber, polytetrafluoroethylene fibre, viscose, polyimide fiber or polyacrylonitrile fibre and carbon fiber, glass fibre or basalt fibre, and filament fiber is non-twist continuous filament yarn, fineness is 1 μm-200 μm; Adopt ultrasonic washing filament fiber again; Thereafter the dry filament fiber of filament drying unit is utilized; Then filament fiber is sent into tubular drafting device drawing-off speed-raising by speed governing roller and tensioner, then by the dispersed filament fiber of pendulum wire device, and becoming lay growth silk fiber net on lace curtaining; Finally by acupuncture, water stings or filament web is made filament non-woven fabric by the method for processing nonwoven fabrics of hot rolling.
CN104480642A discloses a kind of preparation technology of nonwoven fabric, comprising: send into screw extruder after being dried by PP feed stock chip, after melt extruded, filtration, metering, form as-spun fibre again through die head uniform distribution from spinneret orifice ejection; As-spun fibre is after air-flow cooling drawing-off, and be placed on lapper lapping curtain by diffusor duct uniform spreading, the filament web of formation, through hot rolling, winding, becomes nonwoven fabric after cutting.
CN103352318A discloses the production technology of a kind of pearl fiber and viscose combination water prick nonwoven cloth, adopt pearl fiber and viscose to be raw material, and enter shredding operation, combing operation, lapping operation, drafting process, water thorn operation, baking operation, on-line checkingi operation, coiling process, point cutting process successively; Wherein, in shredding operation, pearl fiber and viscose carry out shredding respectively, the carding machine hopper that feeding is corresponding; In combing operation, viscose adopts carding machine one to carry out combing and obtains viscose web, and pearl fiber adopts mixed and disorderly carding machine two at a high speed to carry out combing and obtains pearl fiber net; In lapping operation, viscose web adopts cross lapping, and pearl fiber net adopts straight paving.
Staple card is utilized to become the pattern that prepared by net or prepared by the heat bonding of fiber filament spunbond one-tenth net although the technique that nonwoven fabric prepared by above-mentioned CN103320968A patent utilization long filament breaches tradition, but its production technology of fiber filament itself finally obtained through wet spinning is more complicated, fiber filament is not knitting and do nonwoven fabric, add the production cost of nonwoven fabric, this does not meet the policy of China's energy-saving and emission-reduction and the strategy of sustainable development, CN104480642A patent is then traditional spun-bonded filament non-woven fabric preparation technology, CN103352318A patent is as the representative of traditional blended weave, all belong to dry method lapping, be not adopt the direct lapping of the direct wet spinning of viscose fiber filament, the thin of viscose fiber filament nonwoven fabric cannot be reached, saturating effect.
Viscose because its quality is soft, pendency degree is good, dyeability is good, bright in luster, good hygroscopicity, the advantage of easily washing, and spinnability is excellent, Chang Yumian, hair or various synthetic fiber blending, intertexture, for all kinds of clothes and decorative textile product.Due to the Application Areas that current nonwoven fabric is wide, viscose nonwoven fabric is more and more applied to mattress, decoration, chemical industry, printing, automobile, building materials, the industries such as furniture, and PADDING CLOTH, facial mask, health care disposable surgical clothing, mouth mask, sheet, the disposable tablecloth in hotel, and even the gift bag of current fashion, fine work bag, shopping bag, advertising bag etc.The current conventional production methods of viscose nonwoven fabric adopts the multiple staple card comprising viscose disclosed in CN103352318A become net to reinforce or directly reinforce with viscose fiber filament lapping disclosed in CN103320968A, the nonwoven fabric that staple card becomes net to produce is thicker, poor-performing, Application Areas is narrower, owing to being mixed with other fibers, therefore the performance of viscose can not effectively be embodied, and adopt the method for viscose fiber filament lapping, its cost is too high, is not suitable for applying.China's viscose demand is large, but owing to inevitably producing the pernicious gases such as CS2, H2S in preparation process, to health injury greatly, therefore how to prepare low cost, high performance viscose nonwoven fabric becomes a field of textiles technical staff difficult problem urgently to be resolved hurrily.
Summary of the invention
For the deficiency that prior art exists, technical problem to be solved by this invention is, there is provided a kind of with low cost, easy and simple to handle, energy-saving and cost-reducing, one-step shaping effectively shortens spinning technique step, greatly reduces pollution level, improves the Processes and apparatus based on wet spinning technology Making viscose fiber filament nonwoven fabric of nonwoven fabric serviceability and production efficiency.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of technique based on wet spinning technology Making viscose fiber filament nonwoven fabric, comprises the steps:
Spinning technique
(1), the preparation of spinning solution: described preparation technology by flooding, squeeze, yellow, rear dissolving, filtration, bubble removal step form, the obtained spinning solution for the production of viscose;
(2), stoste Hirschfeld-Klinger reaction: adopt wet-formed, stoste extruded from spinneret orifice and form thread, spinning solution directly contacts spinning with the coagulating agent in coagulating bath;
(3), viscose is shaping: stoste thread is frozen into as-spun fibre, derives through godet roller;
(4), drawing-off: as-spun fibre is stretched, to improve the mechanical property of fiber;
(5) neutralize, wash: as-spun fibre is neutralized, washes, make acid-base neutralization in fiber, reach neutral;
Nonwoven fabric moulding process
(6), lapping: by dispersed and be laid on the convoying curtain of lapper for the viscose fiber filament after washing, by the reciprocal laying of lapper lapping curtain, form intersected with each other being stacked on of filament web and export on curtain;
(7), water thorn is reinforced: utilizing High-Pressure Water to intersecting stacking filament web water thorn reinforcing, making mutually to tangle between fiber reinforcing, forming viscose nonwoven fabric.Meanwhile, High-Pressure Water carries out washing process again to filament fiber fibre web again, improves water washing effect.
(8), dry: the viscose nonwoven fabric after reinforcing water thorn and wash carries out drying and processing;
(9), rolling: the viscose nonwoven fabric rolling packing after oven dry.
The above-mentioned technique based on wet spinning technology Making viscose fiber filament nonwoven fabric, it is stacking in the direction of motion reciprocally swinging exporting curtain that described viscose fiber filament exports lace curtaining upper vertical at lapper, lapper exports lace curtaining and while viscose fiber filament fibre web reciprocally swinging is stacking, makes linear uniform motion, by stacking for dispersed for viscose fiber filament net intersection.
The above-mentioned technique based on wet spinning technology Making viscose fiber filament nonwoven fabric, the hunting frequency of described viscose fiber filament is 10-160 time/min, and the point-to-point speed that lapper exports lace curtaining is 5-80m/min.
The above-mentioned technique based on wet spinning technology Making viscose fiber filament nonwoven fabric, in described spinning technique step, for improving the bulk strength of finished product nonwoven fabric, the step that the as-spun fibre after to washing carries out drawing-off process can be increased, also can increase vertical, horizontal and stretch after water stings into cloth.Both can also carry out drawing-off process to the as-spun fibre after washing, after water stings into cloth, carry out vertical, horizontal stretching again.
A kind of equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, be made up of wet spinning device and non-woven fabric forming apparatus, described wet spinning device by have coagulating agent coagulating bath container, have spinning solution import filter, connect filter and stretching into the feed tube with spinning head in coagulating bath container, spraying godet roller and the water washing device of silk for connecting spinning head, also comprise one for the stacking lapping post-reinforcing of wet adhesive fibre bundle after washing being become the shaped device of filament non-woven fabric.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described shaped device comprises one for the boundling sliver-splitting device concentrated by wet adhesive fibre bundle and disperse, one be connected with described boundling sliver-splitting device for by dispersed for the viscose tow after beam splitting and lay, form the fiber stack device of stacking filament web intersected with each other, one be located at below fiber stack device for matching with fiber stack device, by the stacking lapper lapping curtain thereon of viscose tow intersection, the Spunlace line reinforced for the stacking filament web of intersection being carried out water thorn is at least simultaneously provided with at lapper lapping curtain, the output of described lapper lapping curtain is connected with drier.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described boundling sliver-splitting device comprises the side be engaged with each other for a pair and forms boundling end, opposite side forms the boundling beam splitting running roller of beam splitting end, and two boundling beam splitting running rollers all offer the uniform beam splitting groove of viscose tow combing for collecting.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described fiber stack device comprises one along the pendular body arranged perpendicular to the lapper lapping curtain direction of motion, pendular body offers the thread eye that multiple permission fiber passes through, described pendular body connects a slide, slide to be provided with for guide swinging body along perpendicular to the chute of described lapper lapping curtain direction of motion reciprocally swinging, described pendular body to be provided with the slide rail coordinated with chute.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described pendular body is connected with a hydraulic mechanism for driving it to reciprocatingly slide along chute, hydraulic mechanism comprises the hydraulic cylinder connecting hydraulic oil container and the hydraulic stem be connected with hydraulic cylinder extension, and described hydraulic stem is connected with pendular body.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described lapper lapping curtain drying mechanism is connected with rolling-up mechanism.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, be provided with the drawing roller for improving viscose tow brute force between described godet roller and boundling sliver-splitting device, described drawing roller is made up of dominant draft roller and secondary drawing roller.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described shaped device comprises one for carrying out wet fiber tow to sprawl the conveying roller of conveying, one Conveyance belt for carrying the wet fiber tow after sprawling be connected with conveying roller, one is connected with for wet fiber tow being back and forth stacked into the swing lace curtaining of wet fiber tow net at the output of Conveyance belt, the output of described swing lace curtaining is provided with a lapper lapping curtain for being intersected layer by layer each other by back and forth stacking wet fiber tow net, the Spunlace line reinforced for the stacking wet fiber tow net of intersection being carried out water thorn is at least simultaneously provided with at lapper lapping curtain, the output of described lapper lapping curtain is connected with drier.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described swing lace curtaining comprises two conveyer belts with transmission curtain be arranged in parallel, between two transmission curtains, form the conveyor chamber with conveying wet fiber tow, described two conveyer belts are provided with and drive it along the rotatable parts perpendicular to lapper lapping curtain direction of motion reciprocally swinging.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, is provided with the drawing roller for drawing-off wet fiber tow between described conveying roller and Conveyance belt.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described shaped device comprises the conveying roller for carrying out wet fiber tow to sprawl conveying, the induction system be made up of transmission conveyer belt and laydown belt of a pair contacting one another and co-rotating transmission, the clamp area of moving for clamping wet fiber tow is formed at transmission conveyer belt and laydown belt touching position, described transmission conveyer belt comprises the Conveyance belt being driven running by transmission delivery wheel, laydown belt comprises the lapping lace curtaining being driven running by lapping delivery wheel, the contact position of described Conveyance belt and lapping lace curtaining is respectively arranged with a pair for moving back and forth the lapping roller of stacking wet fiber tow, and guide wet fiber tow when lapping roller moves back and forth and with the tightening roller of lapping roller movement in the same way, described induction system is provided with watertight composition, the output of described lapping roller is provided with a lapper lapping curtain for being intersected layer by layer each other by back and forth stacking wet fiber tow net, the Spunlace line reinforced for the stacking wet fiber tow net of intersection being carried out water thorn is at least simultaneously provided with at lapper lapping curtain, the output of described lapper lapping curtain is connected with drier.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, is provided with the drawing roller for drawing-off wet fiber tow between described conveying roller and induction system.
The above-mentioned equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, described spinning head comprises a body be connected with feed tube, offer the spray hole of multiple through body in body one side along the length direction of described body, described spray hole sets gradually multiple along the length direction of body, and the short transverse along body sets gradually many rows.
The advantage that the present invention is based on the Processes and apparatus of wet spinning technology Making viscose fiber filament nonwoven fabric is: in the step of conventional wet spinning technique, omit correlation step, directly carrying out laying to half-finished viscose fiber filament becomes net and water thorn to reinforce, produce nonwoven fabric, and the direct lapping of wet fiber, eliminate dry step, this technique has broken the concept that traditional use finished fiber long filament or short fiber secondary carry out nonwoven production, it is an innovative point of the present invention, reduce the water consumption in technical process and energy consumption, effectively save production cost, improve production efficiency.Need to carry out post processing after tradition viscose is shaping, be about to nascent viscose by neutralization, washing, desulfurization, oil, the operation such as oven dry, obtain finished product viscose.The present invention can increase interfibrous entanglement by water thorn in the step preparing nonwoven fabric, make it more firm, serve again the object of washing, High-Pressure Water carries out washing process again to filament fiber fibre web, improve water washing effect, eliminate and oil, reel or the step such as cut-out, being achieve many things at one stroke, is second innovative point of the present invention.Water thorn has washing effect again while reinforcing, and the water washing effect of high-pressure water-jet is far longer than the washing in conventional wet spinning post processing, and therefore effect is better, and needs multiple tracks preparatory process before eliminating the processing of traditional viscose.Can overcome that existing short rayon fiber nonwoven fabric intensity is low, complicated process of preparation and the defect such as manual labor amount is large, to realize the advantage that fastness is good, preparation technology is simple and manual labor amount is little.In the process that water thorn is reinforced, achieve the function of conventional wet spinning secondary washing, save processing step.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention;
Fig. 2 is the device structure schematic diagram of the embodiment of the present invention 1;
Fig. 3 is the side-looking structure enlarged diagram of boundling sliver-splitting device;
Fig. 4 is the structure enlarged diagram of boundling beam splitting running roller;
Fig. 5 is the structural representation that fiber stack device is connected with hydraulic mechanism;
Fig. 6 is the partial structurtes enlarged drawing of part A in Fig. 5;
Fig. 7 is the device structure schematic diagram of the embodiment of the present invention 3;
Fig. 8 is the device structure schematic diagram of the embodiment of the present invention 4;
Fig. 9 is the structural representation of spinning head of the present invention.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further details;
As shown in Figure 1, a kind of technique based on wet spinning technology Making viscose fiber filament nonwoven fabric, comprises the steps:
Spinning technique
(1), the preparation of spinning solution: described preparation technology by flooding, squeeze, yellow, rear dissolving, filtration, bubble removal step form, the obtained spinning solution for the production of viscose;
(2), stoste Hirschfeld-Klinger reaction: adopt wet-formed, stoste extruded from spinneret orifice and form thread, spinning solution directly contacts spinning with the coagulating agent in coagulating bath;
(3), viscose is shaping: stoste thread is frozen into as-spun fibre, derives through godet roller;
(4), drawing-off: as-spun fibre is stretched, to improve the mechanical property of fiber;
(5) neutralize, wash: as-spun fibre is neutralized, washes, make acid-base neutralization in fiber, reach neutral;
Nonwoven fabric moulding process
(6), lapping: by dispersed and be laid on the convoying curtain of lapper for the viscose fiber filament after washing, by the reciprocal laying of lapper lapping curtain, form intersected with each other being stacked on of filament web and export on curtain; The hunting frequency of viscose fiber filament is 10-160 time/min, and the point-to-point speed that lapper exports lace curtaining is 5-80m/min.
(7), water thorn is reinforced: utilizing High-Pressure Water to intersecting stacking filament web water thorn reinforcing, making mutually to tangle between fiber reinforcing, forming viscose nonwoven fabric;
(8), dry: the viscose nonwoven fabric after reinforcing water thorn and wash carries out drying and processing;
(9), rolling: the viscose nonwoven fabric rolling packing after oven dry.
For improving the bulk strength of finished product nonwoven fabric, in spinning technique step, increase the step that the as-spun fibre after to washing carries out drawing-off process, for improving the bulk strength of finished product nonwoven fabric, the step that the as-spun fibre after to washing carries out drawing-off process can be increased, also can increase vertical, horizontal and stretch after water stings into cloth.Both can also carry out drawing-off process to the as-spun fibre after washing, after water stings into cloth, carry out vertical, horizontal stretching again.
Embodiment 1:
As Fig. 2, 3, 4, 5, shown in 6, a kind of equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, be made up of wet spinning device 1 and non-woven fabric forming apparatus 2, described wet spinning device 1 is by the coagulating bath container 4 with coagulation bath 3, there is the filter 6 of spinning solution import 5, spinning solution enters in filter 6 through spinning solution import 5 place, connect filter 6 and the feed tube 8 with spinning head 7 stretched in coagulating bath container 4, godet roller 9 and the water washing device 10 at silk place is sprayed for connecting spinning head 7, the Ultrasonic Cleaning that water washing device 10 can adopt this area conventional or pure water cleaning showers, shaped device 2 comprises one for the boundling sliver-splitting device 13 by concentrated for viscose tow 11 and dispersion, boundling sliver-splitting device 13 comprises the side be engaged with each other for a pair and forms boundling end 14, opposite side forms the boundling beam splitting running roller 16 of beam splitting end 15, two boundling beam splitting running rollers 16 all offer the uniform beam splitting groove 17 of viscose tow 11 combing for collecting, beam splitting groove 17 is offered multiple along the axial interval successively of boundling beam splitting running roller 16, single boundling beam splitting running roller 16 is formed the cluster area 18 for collecting viscose tow 11 between adjacent two beam splitting grooves 17, when two boundling beam splitting running rollers 16 are meshed, beam splitting chamber 19 closed is instantaneously formed between relative two beam splitting grooves 17, be used for dispersed for the viscose tow 11 in cluster area 18.
Non-woven fabric forming apparatus 2 also comprise one be connected with described boundling sliver-splitting device 13 for by dispersed for the viscose tow 11 after beam splitting and lay, form the fiber stack device 21 of stacking filament web 20 intersected with each other, one be located at below fiber stack device 21 for matching with fiber stack device 21, viscose tow 11 is intersected stacking lapper lapping curtain 22 thereon, lapper lapping curtain 22 linear uniform motion under the driving of servomotor, the Spunlace line 23 reinforced for the stacking filament web 20 of intersection being carried out water thorn is at least simultaneously provided with at lapper lapping curtain 22, the Application Areas of stacking thickness and actual nonwoven fabric is intersected according to concrete filament web 20, Spunlace line 23 can select one side or two-sided, Spunlace line 23 can adopt current nonwoven water distribution to sting the legacy equipment reinforced, this equipment is prior art, seldom repeat at this, certainly, the quantity of water jet can according to the width dimensions choose reasonable of concrete lapper lapping curtain 22, lapper lapping curtain 22 can adopt conveying roller to drive, power source is provided by reducing motor, after the reinforcing of water thorn completes, drier 24 is connected with at the output of lapper lapping curtain 22.Fiber stack device 21 comprises one along the pendular body 25 arranged perpendicular to lapper lapping curtain 22 direction of motion, the size of pendular body 25 can be determined according to the size of actual lapper lapping curtain 22, on pendular body 25, the direction of motion along lapper lapping curtain 22 offers the thread eye 26 that multiple permission fiber passes through, the bottom of described pendular body 25 is connected with a slide 27, slide 27 is provided with for guide swinging body 25 along the chute 28 perpendicular to described lapper lapping curtain 22 direction of motion reciprocally swinging, pendular body 25 is provided with the slide rail 29 coordinated with chute 28, this sliding matching structure is not unique, due in the process, be slidably matched and require not need strictly, those skilled in the art can adopt gas suspension, the pneumatic various ways that waits realizes sliding.Pendular body 25 can pass through hydraulic-driven, also can be driven by servomotor or reducing motor, in the present embodiment, pendular body 25 is connected with a hydraulic mechanism 29 for driving pendular body 25 to reciprocatingly slide along chute 28, hydraulic mechanism 29 comprises the hydraulic cylinder 30 and the hydraulic stem 31 that be connected flexible with hydraulic cylinder 30 that connect hydraulic oil container, described hydraulic stem 31 is connected with pendular body 25, hydraulic stem 31 drives pendular body 25 reciprocally swinging above lapper lapping curtain 22 reciprocating simultaneously, hydraulic oil container can be selected to lay according to physical device, in the accompanying drawings and unlisted.
Embodiment 2:
For realistic need of production, rolling-up mechanism 32 can be set at the output of lapper lapping curtain 22, after the drying process of the filament web 20 drying mechanism 24 on lapper lapping curtain 22, directly reel packing through rolling-up mechanism 32.Between godet roller 9 and boundling sliver-splitting device 13, also can select the drawing roller be provided with for improving viscose tow 11 brute force, described drawing roller is made up of dominant draft roller 33 and secondary drawing roller 34.
Embodiment 3:
The present embodiment and other embodiment same sections repeat no more, its difference is, the second shaped device is provided, as shown in Figure 7, described shaped device comprises one for carrying out wet fiber tow 35 to sprawl the conveying roller 36 of conveying, one Conveyance belt 37 for carrying the wet fiber tow 35 after sprawling be connected with conveying roller 36, is provided with the drawing roller 38 for drawing-off wet fiber tow 35 between described conveying roller 36 and Conveyance belt 37.
One is connected with for wet fiber tow 35 being back and forth stacked into the swing lace curtaining 41 of wet fiber tow net 40 at the output 39 of Conveyance belt 37, the output 42 of described swing lace curtaining 41 is provided with a lapper lace curtaining 43 for being intersected layer by layer each other by back and forth stacking wet fiber tow net 40, at least simultaneously be provided with the Spunlace line 44 reinforced for the stacking wet fiber tow net 40 of intersection being carried out water thorn at lapper lace curtaining 43, the output of described lapper lace curtaining 43 is connected with drier 45.Swing lace curtaining 41 and comprise two conveyer belts with transmission curtain 46 be arranged in parallel, the conveyor chamber with conveying wet fiber tow 35 is formed between two transmission curtains 46, described two conveyer belts are provided with and drive it along the rotatable parts perpendicular to lapper lace curtaining 43 direction of motion reciprocally swinging, rotatable parts can select reducing motor or servomotor and rack-and-pinion fit structure, and control reciprocating motion by controller.This technology is prior art, and those skilled in the art can select appropriate ways to implement according to actual needs.
Embodiment 4:
The present embodiment and other embodiment same sections repeat no more, and its difference is, provides the third shaped device, as shown in Figure 8,
Described shaped device comprises the conveying roller 48 for carrying out wet fiber tow 47 to sprawl conveying, the induction system be made up of transmission conveyer belt 49 and laydown belt 50 of a pair contacting one another and co-rotating transmission, the clamp area 51 of moving for clamping wet fiber tow 47 is formed with laydown belt 50 touching position at transmission conveyer belt 49, described transmission conveyer belt 49 comprises the Conveyance belt 53 being driven running by transmission delivery wheel 52, laydown belt 50 comprises the lapping lace curtaining 55 being driven running by lapping delivery wheel 54, described Conveyance belt 53 is respectively arranged with a pair for moving back and forth the lapping roller 56 of stacking wet fiber tow 47 with the contact position of lapping lace curtaining 55, and guide wet fiber tow 47 when lapping roller 56 moves back and forth and with the tightening roller 57 of lapping roller 56 movement in the same way, double layer planar clamping band mode is adopted to clamp wet fiber tow 47, can prevent the fibre web drift caused due to interference in air flow when running up from extending with unexpected.Clamping band is interwoven by polyester filament longitude and latitude, thick 0.7 ~ 1mm, surface is coated with synthetic rubber, a small amount of carbon dust is mixed with in coating, to reduce the Electrostatic Absorption of curtain to fiber, and watertight composition is set on transmission conveyer belt 49 and laydown belt 50, the output of described lapping roller 56 is provided with a lapper lace curtaining 58 for being intersected layer by layer each other by back and forth stacking wet fiber tow net 57, the Spunlace line 59 reinforced for the stacking wet fiber tow net 57 of intersection being carried out water thorn is at least simultaneously provided with at lapper lace curtaining 58, the output of described lapper lace curtaining 58 is connected with drier 60.For improving the serviceability of fiber, between conveying roller 48 and induction system, be provided with the drawing roller 61 for drawing-off wet fiber tow 47.
In various embodiments of the present invention, for the structure of spinning head, structure as shown in Figure 9 can be selected, described spinning head 7 comprises a body 62 be connected with feed tube 8, offer the spray hole 63 of multiple through body in body 62 1 side along the length direction of described body 62, described spray hole 63 sets gradually multiple along the length direction of body 62, and the short transverse along body 62 sets gradually many rows.By coordinating of this spinning head 7 and godet roller 9, can by spun tow 64 directly laying become parallel fibre web, be similar to waterfall form, the intersection being more convenient to the later stage is stacking, improves water thorn consolidation effect, improves the production efficiency of nonwoven fabric.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited to above-mentioned citing; those skilled in the art; in essential scope of the present invention, the change made, remodeling, interpolation or replacement, all should belong to protection scope of the present invention.
Claims (17)
1., based on a technique for wet spinning technology Making viscose fiber filament nonwoven fabric, it is characterized in that: comprise the steps:
Spinning technique
(1), the preparation of spinning solution: described preparation technology by flooding, squeeze, yellow, rear dissolving, filtration, bubble removal step form, the obtained spinning solution for the production of viscose;
(2), stoste Hirschfeld-Klinger reaction: adopt wet-formed, stoste extruded from spinneret orifice and form thread, spinning solution directly contacts spinning with the coagulating agent in coagulating bath;
(3), viscose is shaping: stoste thread is frozen into as-spun fibre, derives through godet roller;
(4), drawing-off: as-spun fibre is stretched, to improve the mechanical property of fiber;
(5) neutralize, wash: as-spun fibre is neutralized, washes, make acid-base neutralization in fiber, reach neutral;
Nonwoven fabric moulding process
(6), lapping: by dispersed and be laid on lapper lapping curtain for the viscose fiber filament after washing, by the reciprocal laying of lapper lapping curtain, form intersected with each other being stacked on of filament web and export on curtain;
(7), water thorn is reinforced: utilizing High-Pressure Water to intersecting stacking filament web water thorn reinforcing, making mutually to tangle between fiber reinforcing, forming viscose nonwoven fabric;
(8), dry: the viscose nonwoven fabric after reinforcing water thorn and wash carries out drying and processing;
(9), rolling: the viscose nonwoven fabric rolling packing after oven dry.
2. the technique based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 1, it is characterized in that: described viscose fiber filament is stacking in the direction of motion reciprocally swinging of lapper lapping curtain at lapper lapping curtain upper vertical, lapper lapping curtain makes linear uniform motion while viscose fiber filament fibre web reciprocally swinging is stacking, by stacking for dispersed for viscose intersection.
3. the technique based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 2, it is characterized in that: the hunting frequency of described viscose fiber filament is 10-160 time/min, the point-to-point speed of lapper lapping curtain is 5-80m/min.
4. the technique based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 1, is characterized in that: in described spinning technique step, carries out drawing-off process, and carry out vertical, horizontal stretching to the as-spun fibre after washing after water stings into cloth.
5. the equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric, comprise a wet spinning device, described wet spinning device by have coagulating agent coagulating bath container, have spinning solution import filter, connect filter and stretching into the feed tube with spinning head in coagulating bath container, spraying godet roller and the water washing device of silk for connecting spinning head, it is characterized in that: also comprise one for the stacking lapping post-reinforcing of wet adhesive fibre bundle after washing being become the shaped device of filament non-woven fabric.
6. the equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 5, it is characterized in that: described shaped device comprises one for the boundling sliver-splitting device concentrated by wet adhesive fibre bundle and disperse, one be connected with described boundling sliver-splitting device for by dispersed for the viscose tow after beam splitting and lay, form the fiber stack device of stacking filament web intersected with each other, one be located at below fiber stack device for matching with fiber stack device, by the stacking lapper lace curtaining thereon of viscose tow intersection, the Spunlace line reinforced for the stacking filament web of intersection being carried out water thorn is at least simultaneously provided with at lapper lace curtaining, the output of described lapper lace curtaining is connected with drier.
7. the equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 6, it is characterized in that: described boundling sliver-splitting device comprises the side be engaged with each other for a pair and forms boundling end, opposite side forms the boundling beam splitting running roller of beam splitting end, and two boundling beam splitting running rollers all offer the uniform beam splitting groove of viscose tow combing for collecting.
8. the equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 7, it is characterized in that: described fiber stack device comprises one along the pendular body arranged perpendicular to the lapper lace curtaining direction of motion, pendular body offers the thread eye that multiple permission fiber passes through, described pendular body connects a slide, slide to be provided with for guide swinging body along perpendicular to the chute of described lapper lace curtaining direction of motion reciprocally swinging, described pendular body to be provided with the slide rail coordinated with chute.
9. the equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 8, it is characterized in that: described pendular body is connected with a hydraulic mechanism for driving it to reciprocatingly slide along chute, hydraulic mechanism comprises the hydraulic cylinder connecting hydraulic oil container and the hydraulic stem be connected with hydraulic cylinder extension, and described hydraulic stem is connected with pendular body.
10. the equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 9, is characterized in that: described lapper lace curtaining drying mechanism is connected with rolling-up mechanism.
11. equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 5, it is characterized in that: be provided with the drawing roller for improving viscose tow brute force between described godet roller and boundling sliver-splitting device, described drawing roller is made up of dominant draft roller and secondary drawing roller.
12. equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 5, it is characterized in that: described shaped device comprises one for carrying out wet fiber tow to sprawl the conveying roller of conveying, one Conveyance belt for carrying the wet fiber tow after sprawling be connected with conveying roller, one is connected with for wet fiber tow being back and forth stacked into the swing lace curtaining of wet fiber tow net at the output of Conveyance belt, the output of described swing lace curtaining is provided with a lapper lace curtaining for being intersected layer by layer each other by back and forth stacking wet fiber tow net, the Spunlace line reinforced for the stacking wet fiber tow net of intersection being carried out water thorn is at least simultaneously provided with at lapper lace curtaining, the output of described lapper lace curtaining is connected with drier.
13. equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 12, it is characterized in that: described swing lace curtaining comprises two conveyer belts with transmission curtain be arranged in parallel, between two transmission curtains, form the conveyor chamber with conveying wet fiber tow, described two conveyer belts are provided with and drive it along the rotatable parts perpendicular to lapper lace curtaining direction of motion reciprocally swinging.
14. equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 13, is characterized in that: be provided with the drawing roller for drawing-off wet fiber tow between described conveying roller and Conveyance belt.
15. equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 5, it is characterized in that: described shaped device comprises the conveying roller for carrying out wet fiber tow to sprawl conveying, the induction system be made up of transmission conveyer belt and laydown belt of a pair contacting one another and co-rotating transmission, the clamp area of moving for clamping wet fiber tow is formed at transmission conveyer belt and laydown belt touching position, described transmission conveyer belt comprises the Conveyance belt being driven running by transmission delivery wheel, laydown belt comprises the lapping lace curtaining being driven running by lapping delivery wheel, the contact position of described Conveyance belt and lapping lace curtaining is respectively arranged with a pair for moving back and forth the lapping roller of stacking wet fiber tow, and guide wet fiber tow when lapping roller moves back and forth and with the tightening roller of lapping roller movement in the same way, described induction system is provided with watertight composition, the output of described lapping roller is provided with a lapper lace curtaining for being intersected layer by layer each other by back and forth stacking wet fiber tow net, the Spunlace line reinforced for the stacking wet fiber tow net of intersection being carried out water thorn is at least simultaneously provided with at lapper lace curtaining, the output of described lapper lace curtaining is connected with drier.
16. equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 15, is characterized in that: be provided with the drawing roller for drawing-off wet fiber tow between described conveying roller and induction system.
17. equipment based on wet spinning technology Making viscose fiber filament nonwoven fabric according to claim 12 or 15, it is characterized in that: described spinning head comprises a body be connected with feed tube, offer the spray hole of multiple through body in body one side along the length direction of described body, described spray hole sets gradually multiple along the length direction of body, and the short transverse along body sets gradually many rows.
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| CN106555236A (en) * | 2016-12-02 | 2017-04-05 | 武汉纺织大学 | A kind of utilization meltblown prepares the device and method of superfine fibre beam |
| CN106835508A (en) * | 2017-02-23 | 2017-06-13 | 扬州纪元纺织有限公司 | A kind of wet spinning technology prepares the laydown process and device of continuous yarn non-woven fabrics |
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| CN106555236B (en) * | 2016-12-02 | 2019-08-30 | 武汉纺织大学 | A kind of device and method preparing superfine fibre beam using meltblown |
| CN106555236A (en) * | 2016-12-02 | 2017-04-05 | 武汉纺织大学 | A kind of utilization meltblown prepares the device and method of superfine fibre beam |
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| CN108239822A (en) * | 2018-03-14 | 2018-07-03 | 天津工业大学 | A kind of Lyocell filament nonwovens material and preparation method thereof |
| CN111088536A (en) * | 2018-10-23 | 2020-05-01 | 中国石油化工股份有限公司 | Oiling method of polyacrylonitrile protofilament |
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