CN105350182A - Technology and equipment for preparing artificial fiber filament non-woven fabric on basis of dry spinning technique - Google Patents
Technology and equipment for preparing artificial fiber filament non-woven fabric on basis of dry spinning technique Download PDFInfo
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- CN105350182A CN105350182A CN201510854988.2A CN201510854988A CN105350182A CN 105350182 A CN105350182 A CN 105350182A CN 201510854988 A CN201510854988 A CN 201510854988A CN 105350182 A CN105350182 A CN 105350182A
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Abstract
The invention discloses a technology for preparing an artificial fiber filament non-woven fabric on the basis of a dry spinning technique. The technology comprises a spinning technology including the steps of spinning solution preparing, liquid solidifying reacting and N-methylmorpholine oxide (NMMO) recycling, artificial fiber forming, washing and drafting and a non-woven fabric forming technology including the steps of web laying, wherein dried as-formed fiber bundles are evenly dispersed and laid on a web curtain of a web former to form filament fiber webs which are mutually stacked in a crossing mode; spunlace reinforcing; drying; rolling. Equipment is composed of a dry spinning device and a non-woven fabric forming device. According to the technology and the equipment, related steps in a traditional dry spinning technology are omitted, half-finished artificial fiber filaments are directly adopted for production of the non-woven fabric, and the traditional concept that finished fiber filaments are used for two times for non-woven fabric production is broken; the production cost is effectively saved, pollution to the environment in the technology process is reduced, and the production efficiency is improved.
Description
Technical field
The invention belongs to textile technology field, particularly a kind of Processes and apparatus preparing artificial fibre filament non-woven fabric based on dry spinning technology.
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-coagulating bath-washing-winding-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 sum, although current dry spinning can prepare artificial fibre, after actual production expects obtaining artificial fibre long filament by dry spinning technology with research and development field nobody, carry out the method that artificial fibre filament non-woven fabric is prepared in lapping.
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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology, is characterized in that: comprise the steps:
(1), spinning technique
(1), the preparation of spinning solution: obtain pulp material with the raw material such as trees, careless class, pulp material is pulverized through dipping, grinding, squeezing successively, sulfate slurries are cleaned by the sulfate slurries obtained after NaOH and the boiling of vulcanized sodium mixed liquor in flowing water, dehydration; Again through sodium carbonate liquor and dilute sulfuric acid colloidal sol alternating impregnating-press dry-water displacement wash twice, obtain cellulose; Cellulose is joined in nitrogen methylmorpholineoxide (NMMO) solution and dissolve, after deaeration, obtain spinning solution;
(2), stoste Hirschfeld-Klinger reaction reclaim nitrogen methylmorpholineoxide (NMMO): adopt duse process, spinning solution to be extruded from spinning head through measuring pump and extrudes thread, spinning solution is through spinning shaft, spinning solution is in the effect of thermal air current, nitrogen methylmorpholineoxide (NMMO) in stoste thread is volatilized fast, nitrogen methylmorpholineoxide (NMMO) steam evaporated is taken away by thermal air current, stoste is solidified while sloughing solvent gradually, and elongation attenuates and forms as-spun fibre under the effect of winding tension;
(3), artificial fibre is shaping: stoste thread is solidified into as-spun fibre, derives through godet roller;
(4), wash: washing process is carried out to the artificial fibre of deriving;
(5), drawing-off: as-spun fibre is stretched, to improve the mechanical property of fiber;
(2), nonwoven fabric moulding process
(6), lapping: by dispersed for the fiber filament after drawing-off and be laid on lapper lapping curtain, 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 rayon non-woven's cloth;
(8), dry: the rayon non-woven's cloth after reinforcing water thorn carries out drying and processing;
(9), rolling: the rayon non-woven's cloth rolling packing after oven dry.
The above-mentioned technique preparing artificial fibre filament non-woven fabric based on dry spinning technology, described artificial fibre long 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 artificial fibre filament web reciprocally swinging is stacking, by stacking for dispersed for artificial fibre intersection.
The above-mentioned technique preparing artificial fibre filament non-woven fabric based on dry spinning technology, the hunting frequency of described artificial fibre long filament is 10 ~ 160 times/min, and the point-to-point speed of lapper lapping curtain is 5-80m/min.
The above-mentioned technique preparing artificial fibre filament non-woven fabric based on dry spinning technology, in described spinning technique step, carries out drawing-off process to the as-spun fibre after washing, and carry out vertical, horizontal stretching after water stings into cloth.
A kind of equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, comprise a dry spinning device, described dry spinning device comprises the spinning solution container that has inlet, one measuring pump be connected with spinning solution container, measuring pump is connected with spinning head, and the spinning shaft that the spinning solution for being sprayed by spinning head solidifies, described spinning head stretches in spinning shaft, hot air inlet and the delivery outlet for being derived by the artificial fibre tow of solidification are set bottom spinning shaft, the collection container for reclaiming nitrogen methylmorpholineoxide (NMMO) being provided with hot-air outlet at spinning shaft top and being connected with hot-air outlet, at delivery outlet, water washing device is set, also comprise one by export wet artificial fibre tow through godet roller derive after, the shaped device of filament non-woven fabric is reinforced in stacking for artificial fibre tow lapping.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, described shaped device comprise one for by wet artificial cellosilk's constriction and dispersion boundling sliver-splitting device, one be connected with described boundling sliver-splitting device for by dispersed for the artificial fibre 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 artificial fibre 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.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, 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 artificial fibre tow combing for collecting.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, 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.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology, described lapper lace curtaining drying mechanism is connected with rolling-up mechanism.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, is provided with the drawing roller for improving artificial cellosilk's beam intensity power 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology, 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.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, 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.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, is provided with the drawing roller for drawing-off wet fiber tow between described conveying roller and Conveyance belt.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, 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.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, is provided with the drawing roller for drawing-off wet fiber tow between described conveying roller and induction system.
The above-mentioned equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology, 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 present invention is based on the advantage that dry spinning technology prepares the Processes and apparatus of artificial fibre filament non-woven fabric is: in the step of conventional dry spinning technique, omit correlation step, directly carrying out laying to half-finished artificial fibre long 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 after conventional artificial's fiberizing to carry out post processing, be about to nascent artificial fibre by neutralization, washing, desulfurization, oil, the operation such as oven dry, obtain finished synthetic's fiber.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 dry spinning post processing, and therefore effect is better, and needs multiple tracks preparatory process before eliminating conventional artificial's fiber process.Can overcome that existing rayon staple's 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 dry 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology, is characterized in that: comprise the steps:
(1), spinning technique
(1), the preparation of spinning solution: obtain pulp material with the raw material such as trees, careless class, pulp material is pulverized through dipping, grinding, squeezing successively, sulfate slurries are cleaned by the sulfate slurries obtained after NaOH and the boiling of vulcanized sodium mixed liquor in flowing water, dehydration; Again through sodium carbonate liquor and dilute sulfuric acid colloidal sol alternating impregnating-press dry-water displacement wash twice, obtain cellulose; Cellulose is joined in nitrogen methylmorpholineoxide (NMMO) solution and dissolve, after deaeration, obtain spinning solution;
(2), stoste Hirschfeld-Klinger reaction reclaim nitrogen methylmorpholineoxide (NMMO): adopt duse process, spinning solution to be extruded from spinning head through measuring pump and extrudes thread, spinning solution is through spinning shaft, spinning solution is in the effect of thermal air current, nitrogen methylmorpholineoxide (NMMO) in stoste thread is volatilized fast, nitrogen methylmorpholineoxide (NMMO) steam evaporated is taken away by thermal air current, stoste is solidified while sloughing solvent gradually, and elongation attenuates and forms as-spun fibre under the effect of winding tension;
(3), artificial fibre is shaping: stoste thread is solidified into as-spun fibre, derives through godet roller;
(4), wash: washing process is carried out to the artificial fibre of deriving;
(5), drawing-off: as-spun fibre is stretched, to improve the mechanical property of fiber;
(2), nonwoven fabric moulding process
(6), lapping: by dispersed for the fiber filament after drawing-off and be laid on lapper lapping curtain, 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 rayon non-woven's cloth;
(8), dry: the rayon non-woven's cloth after reinforcing water thorn carries out drying and processing;
(9), rolling: the rayon non-woven's cloth 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology, one dry spinning device 1 and shaped device 2 form, described dry spinning device 1 comprises the spinning solution container 3 that has inlet, one measuring pump 4 be connected with spinning solution container 3, measuring pump 4 is connected with spinning head 5, and the spinning shaft 6 that the spinning solution for being sprayed by spinning head 5 solidifies, described spinning head 5 stretches in spinning shaft 6, the bottom of spinning shaft 6 arranges hot air inlet 7 and the delivery outlet 8 for being derived by the artificial fibre tow 11 of solidification, the collection container 66 for reclaiming nitrogen methylmorpholineoxide (NMMO) being provided with hot-air outlet 65 at the top of spinning shaft 6 and being connected with hot-air outlet 65, at delivery outlet 8, water washing device 10 is set, also comprise one by export wet artificial fibre tow 11 after godet roller 9 is derived, the shaped device 2 of filament non-woven fabric is reinforced in stacking for artificial fibre tow 11 lapping.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 artificial fibre 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 artificial fibre bundle 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 artificial fibre 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 artificial fibre 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, artificial fibre 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 artificial fibre 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. prepare a technique for artificial fibre filament non-woven fabric based on dry spinning technology, it is characterized in that: comprise the steps:
(1), spinning technique
(1), the preparation of spinning solution: obtain pulp material with the raw material such as trees, careless class, pulp material is pulverized through dipping, grinding, squeezing successively, sulfate slurries are cleaned by the sulfate slurries obtained after NaOH and the boiling of vulcanized sodium mixed liquor in flowing water, dehydration; Again through sodium carbonate liquor and dilute sulfuric acid colloidal sol alternating impregnating-press dry-water displacement wash twice, obtain cellulose; Cellulose is joined in nitrogen methylmorpholineoxide (NMMO) solution and dissolve, after deaeration, obtain spinning solution;
(2), stoste Hirschfeld-Klinger reaction reclaim nitrogen methylmorpholineoxide (NMMO): adopt duse process, spinning solution to be extruded from spinning head through measuring pump and extrudes thread, spinning solution is through spinning shaft, spinning solution is in the effect of thermal air current, nitrogen methylmorpholineoxide (NMMO) in stoste thread is volatilized fast, nitrogen methylmorpholineoxide (NMMO) steam evaporated is taken away by thermal air current, stoste is solidified while sloughing solvent gradually, and elongation attenuates and forms as-spun fibre under the effect of winding tension;
(3), artificial fibre is shaping: stoste thread is solidified into as-spun fibre, derives through godet roller;
(4), wash: washing process is carried out to the artificial fibre of deriving;
(5), drawing-off: as-spun fibre is stretched, to improve the mechanical property of fiber;
(2), nonwoven fabric moulding process
(6), lapping: by dispersed for the fiber filament after drawing-off and be laid on lapper lapping curtain, 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 rayon non-woven's cloth;
(8), dry: the rayon non-woven's cloth after reinforcing water thorn carries out drying and processing;
(9), rolling: the rayon non-woven's cloth rolling packing after oven dry.
2. the technique preparing artificial fibre filament non-woven fabric based on dry spinning technology according to claim 1, it is characterized in that: described artificial fibre long 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 artificial fibre filament web reciprocally swinging is stacking, by stacking for dispersed for artificial fibre intersection.
3. the technique preparing artificial fibre filament non-woven fabric based on dry spinning technology according to claim 2, is characterized in that: the hunting frequency of described artificial fibre long filament is 10 ~ 160 times/min, and the point-to-point speed of lapper lapping curtain is 5-80m/min.
4. the technique preparing artificial fibre filament non-woven fabric based on dry spinning technology 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. prepare the equipment of artificial fibre filament non-woven fabric based on dry spinning technology for one kind, comprise a dry spinning device, described dry spinning device comprises the spinning solution container that has inlet, one measuring pump be connected with spinning solution container, measuring pump is connected with spinning head, and the spinning shaft that the spinning solution for being sprayed by spinning head solidifies, described spinning head stretches in spinning shaft, hot air inlet and the delivery outlet for being derived by the artificial fibre tow of solidification are set bottom spinning shaft, the collection container for reclaiming nitrogen methylmorpholineoxide (NMMO) being provided with hot-air outlet at spinning shaft top and being connected with hot-air outlet, at delivery outlet, water washing device is set, it is characterized in that: also comprise one by export wet artificial fibre tow through godet roller derive after, the shaped device of filament non-woven fabric is reinforced in stacking for artificial fibre tow lapping.
6. the equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology according to claim 5, it is characterized in that: described shaped device comprise one for by wet artificial cellosilk's constriction and dispersion boundling sliver-splitting device, one be connected with described boundling sliver-splitting device for by dispersed for the artificial fibre 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 artificial fibre 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 artificial fibre tow combing for collecting.
8. the equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology according to claim 9, is characterized in that: described lapper lace curtaining drying mechanism is connected with rolling-up mechanism.
11. equipment preparing artificial fibre filament non-woven fabric based on dry spinning technology according to claim 5, it is characterized in that: be provided with the drawing roller for improving artificial cellosilk's beam intensity power 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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 preparing artificial fibre filament non-woven fabric based on dry spinning technology 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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| CN106149202A (en) * | 2016-08-23 | 2016-11-23 | 绍兴文理学院元培学院 | Wood pulp cellulose and polypropylene fibre melt-blown material processing technology |
| CN106958163A (en) * | 2017-04-01 | 2017-07-18 | 陈美章 | A kind of manufacture method and its system of processing of staple fibre paper |
| CN107869008A (en) * | 2017-11-03 | 2018-04-03 | 天津工业大学 | A kind of preparation method of cellulose not weaving fabric of superfine fiber |
| 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 |
| CN109082776A (en) * | 2018-09-21 | 2018-12-25 | 江苏开迪新材料有限公司 | Using endless tow spinning cake as the sub-wire web forming device and implementation method of raw material |
| CN109385677A (en) * | 2018-12-03 | 2019-02-26 | 厦门当盛新材料有限公司 | A kind of super high-speed spinning equipment and spinning process using flash method |
| CN110079936A (en) * | 2019-04-17 | 2019-08-02 | 厦门当盛新材料有限公司 | Fiber aftertreatment equipment and method are spun in a kind of sudden strain of a muscle |
| CN110184745A (en) * | 2019-05-24 | 2019-08-30 | 武汉纺织大学 | A kind of method that dry spinning prepares uvioresistant Lyocell fibers non-woven fabrics at network method |
| CN110946714A (en) * | 2019-12-09 | 2020-04-03 | 福建恒安集团有限公司 | Preparation method of disposable absorbent article added with shea butter |
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| CN106149202B (en) * | 2016-08-23 | 2018-10-23 | 绍兴文理学院元培学院 | Wood pulp cellulose and polypropylene fibre melt-blown material processing technology |
| CN106149202A (en) * | 2016-08-23 | 2016-11-23 | 绍兴文理学院元培学院 | Wood pulp cellulose and polypropylene fibre melt-blown material processing technology |
| CN106958163A (en) * | 2017-04-01 | 2017-07-18 | 陈美章 | A kind of manufacture method and its system of processing of staple fibre paper |
| CN106958163B (en) * | 2017-04-01 | 2018-09-25 | 福建省大投科技有限公司 | A kind of manufacturing method and its system of processing of staple fibre paper |
| CN107869008B (en) * | 2017-11-03 | 2019-10-29 | 天津工业大学 | A kind of preparation method of cellulose not weaving fabric of superfine fiber |
| CN107869008A (en) * | 2017-11-03 | 2018-04-03 | 天津工业大学 | A kind of preparation method of cellulose not weaving fabric of superfine fiber |
| 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 |
| CN109082776A (en) * | 2018-09-21 | 2018-12-25 | 江苏开迪新材料有限公司 | Using endless tow spinning cake as the sub-wire web forming device and implementation method of raw material |
| CN109082776B (en) * | 2018-09-21 | 2024-01-16 | 溧阳市绿茵毯业有限公司 | Filament dividing and net forming device using filament bundle cake as raw material and implementation method |
| CN109385677A (en) * | 2018-12-03 | 2019-02-26 | 厦门当盛新材料有限公司 | A kind of super high-speed spinning equipment and spinning process using flash method |
| CN110079936A (en) * | 2019-04-17 | 2019-08-02 | 厦门当盛新材料有限公司 | Fiber aftertreatment equipment and method are spun in a kind of sudden strain of a muscle |
| CN110184745A (en) * | 2019-05-24 | 2019-08-30 | 武汉纺织大学 | A kind of method that dry spinning prepares uvioresistant Lyocell fibers non-woven fabrics at network method |
| CN110946714A (en) * | 2019-12-09 | 2020-04-03 | 福建恒安集团有限公司 | Preparation method of disposable absorbent article added with shea butter |
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