CN103320968B - A kind of manufacture method of filament non-woven fabric - Google Patents
A kind of manufacture method of filament non-woven fabric Download PDFInfo
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- CN103320968B CN103320968B CN201310292596.2A CN201310292596A CN103320968B CN 103320968 B CN103320968 B CN 103320968B CN 201310292596 A CN201310292596 A CN 201310292596A CN 103320968 B CN103320968 B CN 103320968B
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Abstract
The present invention 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.
Description
Technical field
The present invention relates to the manufacture method of nonwoven fabric, this manufacture method is specially adapted to directly or to be difficult to the organic filament fibers such as the aramid fiber produced by melt spun-bond process, and the inorganic filament such as glass fibre, carbon fiber fiber directly manufactures filament non-woven fabric.
Background technology
The inorganic filament fibers such as carbon fiber, glass fibre and basalt fibre, there is the advantages such as TENSILE STRENGTH is large, resistance to elevated temperatures good, stable chemical performance, in industries such as Aeronautics and Astronautics, national defense industry, high temperature filtration, auto manufacturing, civil engineerings, there is very wide purposes and good application prospect.But the inorganic filament fibers such as carbon fiber, glass fibre and basalt, because rigidity is large, easily fragmentation, smooth surface, fiber without the feature such as curling, therefore one-tenth net poor performance, not easily reinforces.Current method for processing nonwoven fabrics mostly is first by filament fiber cutting short-forming fiber, carry out carding again, last pinprick reinforcement, this type of processing method not only loses the characteristic of filament fiber, and processing process is long, equipment is violent to the effect of filament fiber, filament fiber damage is larger.
The high temperature resistant organic filament fibers such as polyphenylene sulfide fibre, aramid fiber, polytetrafluoroethylene fibre and polyimide fiber, have very wide purposes in high temperature filtration felt field, but this kind of filament fiber all can not be applicable to melt spun-bond process at a high speed to be produced.Current high performance nonwoven high temperature filtration felt preparation method is that filament fiber is cut to staple fibre, after carding, carry out acupuncture or water thorn reinforce shaping, product strength prepared by these class methods is relatively low, DIMENSIONAL STABILITY is poor, the surperficial fine hair of product is many, needs carry out process of singing, and consumes a large amount of energy; And using the Woven filter cloth that filament fiber is produced by conventional weaving method, then speed of production is lower.
Filament fiber prepared by the traditional solution-polymerized SBR such as polyacrylonitrile fibre, viscose can not be applicable to melt spun-bond process nonwoven and produce, the nonwoven processing mode of this fibrid is also after short fiber dry-laying, the manufacture method of reinforcing again, greatly limit range of application and the speed of production of product.
Summary of the invention
For the deficiencies in the prior art, the technical problem that quasi-solution of the present invention is determined is: the manufacture method providing a kind of filament non-woven fabric, filament fiber lay directly fast can not only be become fiber web by this manufacture method, facilitate follow-up reinforcement process, and to filament fiber not damaged in direct net process, become net spee fast simultaneously, become net spee at 15-50m/min, the uniformity of filament web is good, and raw material is widely applicable.
The technical scheme that the present invention solve the technical problem is, designs a kind of manufacture method of filament non-woven fabric, and this manufacture method adopts following processing step:
Unwinding: utilize creel filament fiber unwinding from yarn cylinder to be got off; Described filament fiber refers to that organic filament fiber comprises polyphenylene sulfide fibre, aramid fiber, polytetrafluoroethylene fibre, viscose, polyimide fiber or polyacrylonitrile fibre and inorganic filament fiber comprises carbon fiber, glass fibre or basalt fibre, and described filament fiber is non-twist continuous filament yarn, fineness is 1 μm-200 μm;
Cleaning: adopt ultrasonic washing technique carrying out washing treatment filament fiber, remove the finish of fiber surface;
Dry: to utilize filament drying unit heated-air drying process filament fiber;
Long filament becomes net: filament fiber is sent into tubular drafting device drawing-off speed-raising by speed governing roller, then by the dispersed filament fiber of pendulum wire device, and is becoming lay growth silk fiber net on lace curtaining;
Make filament non-woven fabric: finally by acupuncture, water stings or filament web is made filament non-woven fabric by the method for processing nonwoven fabrics of hot rolling.
Compared with prior art, the invention has the beneficial effects as follows: use air drawing masterpiece to be filament fiber onward impulse, with the one-tenth net mode of pendulum wire device by even for filament fiber lay, under the prerequisite not damaging filament fiber, nothing can be carried out to fiber and be spun into net processing, fixed network method can also be selected according to the characteristic of filament fiber simultaneously, as: rigidity is large, breakable glass filament fiber, basalt long silk fiber can select flexible water thorn to reinforce, the hot melt filament fiber of low melting point can select hot rolling to reinforce, infusibility or the filament fiber that can not melt can select mechanical fixed network.The invention solves can not directly or be difficult to by melt spun-bond process produce the organic filament fiber such as polyphenylene sulfide fibre, aramid fiber, polytetrafluoroethylene fibre, viscose, polyimide fiber, polyacrylonitrile fibre, become net problem with the filament non-woven fabric of the inorganic filament fiber such as carbon fiber, glass fibre, basalt fibre.
Filament fiber lay can not only be become fiber web by manufacture method of the present invention fast, facilitate follow-up reinforcement process, and to filament fiber not damaged in net process, become net spee fast simultaneously, become net spee at 15-50m/min, having good uniformity of filament web.
Accompanying drawing explanation
Fig. 1 is the filament web net-forming process schematic flow sheet of a kind of embodiment of filament non-woven fabric manufacture method of the present invention.
Fig. 2 is the filament web water thorn reinforcement process schematic flow sheet of a kind of embodiment of filament non-woven fabric manufacture method of the present invention.
Fig. 3 is the filament web pinprick reinforcement process flow diagram of a kind of embodiment of filament non-woven fabric manufacture method of the present invention.
In figure: 1-yarn cylinder, 2-tensioner, the infrared thread break stop motion of 3-, 4-Ultrasonic Cleaning pond, 5-filament drying unit, 6-creel, 7-filament fiber, 8-speed governing roller, 9-high-pressure air inlet, 10-drafting tube, 11-pendulum wire device, 12-holds in the palm lace curtaining, 13-vacuum suction apparatus, 14-water jet, 15-rotary drum, 16-filament fiber spunlace non-woven cloth, 17-pre-needling head, the main acupuncture head of 18-, 19-filament fiber needle punched non-woven fabrics.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the inventive method is described further.
The filament non-woven fabric manufacture method (abbreviation method, see Fig. 1-3, in accompanying drawing, the number of each assembly can increase according to the grammes per square metre of product or reduce) of the present invention's design, adopts following manufacturing technology steps:
Unwinding: utilize creel the unwinding from yarn cylinder of the non-twist filament fiber on yarn cylinder to be got off;
Cleaning: adopt the filament fiber carrying out washing treatment that unwinding is got off by ultrasonic washing technique, removes the finish of fiber surface; Ultrasonic washing technique and cleaning agent do different choice according to the auxiliary agent kind on washing filament fiber surface; Its technique is originally as prior art.
Dry: the filament fiber through ultrasonic washing process carries out heated-air drying process by filament drying unit, remove the most moisture content in filament fiber surface; The temperature of hot blast is selected according to the kind difference of filament fiber, and such as glass filament fiber selects 100-350 DEG C, if the thermoplastic filament fiber containing low melting point in filament fiber, as polypropylene filamente fiber, then hot blast temperature selects 50-80 DEG C.
Long filament becomes net: through the filament fiber of super-dry process by entering tubular drafting device after speed governing roller and tensioner, in tubular drafting device, be subject to the drawing-off effect of high speed compression air-flow and have at a high speed, after this dispersed under the high-frequency effect of pendulum wire device by the high speed filament fiber of tubular drafting device, and becoming lay growth silk fiber net on lace curtaining; Compressed-air actuated pressure limit is selected according to becoming net spee and filament fiber characteristic, generally selects 0.2-0.8Mpa.
Make filament non-woven fabric: by acupuncture, water thorn or the method for processing nonwoven fabrics of hot rolling, filament web is made filament non-woven fabric again.Method for processing nonwoven fabrics is originally as prior art.
Creel 6, Ultrasonic Cleaning pond 4, filament drying unit 5 and drafting tube 10 optimum organization mainly form by the equipment that the inventive method adopts.Its technological process is: the filament fiber 7 got off from unwinding yarn cylinder 1 enters the Ultrasonic Cleaning pond 4 that ultrasonic cleaning agent is housed after tensioner 2 and infrared thread break stop motion 3, after this filament fiber 7 removes moisture content in filament drying unit 5 drying, driedly to advance by accelerating under the high-speed compressed air effect that entered by compressed air inlet 9 in drafting tube 10 through speed governing roller 8 without finish filament fiber 7, and pendulum wire device 11 act under dispersed after, lay growth silk fiber net (wherein 13 is vacuum suction apparatus) on holder lace curtaining 12, filament non-woven fabric product is made without spinning processing method again by main acupuncture 18 or water jet 14.
The inventive method designs for following filament fiber, be specially adapted to the inorganic filament fibers such as the organic filament fiber such as polyphenylene sulfide fibre, aramid fiber, polytetrafluoroethylene fibre, viscose, polyimide fiber, polyacrylonitrile fibre produced by melt spun-bond process and carbon fiber, glass fibre and Wu Yan fiber directly or to be difficult to, and described filament fiber is the continuous filament fibers of not twisting, fineness is 1 μm-200 μm.
Speed governing roller 8 described in the inventive method and tensioner 2 are smooth roll or resilient roller, and the material of drafting tube is metal tube, and bore is 7.5-12mm, pipe range 800-2500mm, and drafting tube spacing is 50-200mm; The admission pressure of high-speed compressed air is 0.4-0.8mpa, and the hunting frequency of pendulum wire device 11 is 500-1200 time/min.
Provide specific embodiments of the invention below, these embodiments, only for describing the present invention in detail, do not limit the protection domain of the application's claim.
Embodiment 1
Manufacture high temperature filtration glass filament fiber water thorn felt, grammes per square metre 700g/m
2.
High temperature filtration glass filament fiber water thorn felt technological process (see Fig. 2) of the present embodiment, its concrete implementation step:
Unwinding: be positioned on creel 6 by the yarn cylinder 1 being wound with non-twist glass filament fiber 7, after this glass filament fiber is by tensioner 2 and infrared short-term automatic stop arrangement 3, setting yarn cylinder rotating speed 12000r/min.
Cleaning: the glass filament fiber 7 after unwinding is by Ultrasonic Cleaning pond 4, and select the power 3000W of supersonic wave cleaning machine, operating frequency 40KHZ, wash temperature 60 DEG C, selects water-soluble ultrasonic cleaning agent.
Dry: glass filament fiber 7, by filament drying unit 5, sets hot blast temperature 200 DEG C.
Long filament becomes net: dry glass filament fiber 7 comes together in drafting tube 10 porch under the effect of speed governing roller 8, and dispersed under the high velocity effect of pendulum wire device 11 after be laid in lay on holder lace curtaining 12 and become glass filament fiber net; Setting high-pressure air inlet 9 attenuating blast pressure 0.5Mpa, holder lace curtaining 12 speed is 15m/min, pendulum wire device 11 vibration frequency 800r/min;
Flexible fixed network: the glass filament fiber net obtained by upper step is sent in water thorn device under the drive of holder lace curtaining 12, after pre-water thorn and main water thorn, be consolidated into continuous glass fibre water thorn felt 16, water jet pressure is set as that 40bar, 60bar, 80bar, 80bar, 110bar, 110bar, 160bar, 160bar, 80bar, 80bar(are see accompanying drawing 2 from front to back).
Embodiment 2
Manufacture high temperature filtration PTFE long filament Nomex, grammes per square metre 500g/m
2
The long Nomex technological process of manufacture high temperature filtration PTFE of the present embodiment is see Fig. 3, and its concrete implementation step is as follows:
PTFE fiber web forming step (comprise unwinding, cleaning, drying become net with long filament) is identical with embodiment 1.Its process conditions are specifically set as: attenuating blast pressure 0.45Mpa, holder lace curtaining 7 speed is 15m/min, homodisperse PTFE filament web is sent into through pre-needling 17 pre-needling in pre-needling machine for holder lace curtaining 12 by fixed network step, after after the 3 main acupunctures in road, a 18 main acupuncture, be consolidated into PTFE long filament Nomex.Pre-needling frequency setting is 600r/min, and main punch frequency is set as 800r/min, 800r/min, 800r/min from front to back successively.
Embodiment 3
Manufacture viscose filament yarn spun laced fabric, grammes per square metre 100g/m
2.
The concrete implementation step of technological process (see Fig. 2) that the present embodiment manufactures viscose filament yarn spun laced fabric is identical with embodiment 1.Its process conditions are specifically set as: baking temperature 100 DEG C, attenuating blast pressure 0.45Mpa, and holder lace curtaining 7 speed is 20m/min; Water jet pressure is set as 40bar, 60bar, 80bar, 80bar, 110bar from front to back successively, 110bar, 160bar, 160bar, 80bar, 80bar.Remaining with embodiment 1.
Claims (2)
1. a manufacture method for filament non-woven fabric, this manufacture method adopts following processing step:
Unwinding: utilize creel filament fiber unwinding from yarn cylinder to be got off; Described filament fiber refers to that organic filament fiber comprises polyphenylene sulfide fibre, aramid fiber, polytetrafluoroethylene fibre, viscose, polyimide fiber or polyacrylonitrile fibre and inorganic filament fiber comprises carbon fiber, glass fibre or basalt fibre, and described filament fiber is non-twist continuous filament yarn, fineness is 1 μm-200 μm;
Cleaning: adopt ultrasonic washing technique carrying out washing treatment filament fiber, remove the finish of fiber surface;
Dry: to utilize filament drying unit heated-air drying process filament fiber;
Long filament becomes net: 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 is becoming lay growth silk fiber net on lace curtaining; The material of described tubular drafting device is metal tube, and bore is 7.5-12mm, pipe range 800-2500mm, and drafting tube spacing is 50-200mm; The admission pressure of high-speed compressed air is 0.4-0.8Mpa; The hunting frequency of described pendulum wire device is 500-1200 time/min;
Make filament non-woven fabric: finally by acupuncture, water stings or filament web is made filament non-woven fabric by the method for processing nonwoven fabrics of hot rolling.
2. the manufacture method of filament non-woven fabric according to claim 1, is characterized in that described speed governing roller and tensioner are smooth roll or resilient roller.
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| CN201310292596.2A CN103320968B (en) | 2013-07-12 | 2013-07-12 | A kind of manufacture method of filament non-woven fabric |
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| CN201310292596.2A CN103320968B (en) | 2013-07-12 | 2013-07-12 | A kind of manufacture method of filament non-woven fabric |
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| CN105437682A (en) * | 2015-12-29 | 2016-03-30 | 苏州鑫茂无纺材料有限公司 | Antistatic non-woven fabric |
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