CN100357509C - Process for production of multifunctional composite bicomponent fiber spunbond nonwoven fabrics - Google Patents
Process for production of multifunctional composite bicomponent fiber spunbond nonwoven fabrics Download PDFInfo
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Abstract
The present invention relates to a production method of composite bicomponent fiber spunbonded nonwoven fabric. Two or three kinds of resin respectively carry out three groups of treatments of dryness, extrusion and filtration, wherein one kind of resin enter two main parallel spinning boxes; the other two groups of resin enter two subsidiary parallel spinning boxes and then enter the main spinning boxes, and other two groups of resin and the resin which directly enter the main spinning boxes enter a special spinning component to be compounded in miniature holes of spinneret plates. Ejected spinning flows respectively carry out side wind blow, traction and swaying yarn to be coated into a fiber net on a net curtain of the same net forming machine which can make the fabric run bidirectionally. The present invention can convey the fiber net to a needling machine or a hot-rolling mill to make a bicomponent spunbonded needling or a hot-rolling product. The spinneret plates with hole shapes (skin core, sea island, juxtaposition, withered valve, etc.) and different hole numbers of the main spinning boxes can be changed, and the subsidiary spinning boxes have no spinneret plate. On a set of production line of the present invention, the resin of PET, COPET, PA6, PBT, PP, PE, etc. is used for producing ten kinds of function type bicomponent fiber spunbonded nonwoven fabric with tens of product specifications.
Description
Technical field
The present invention relates to the manufacture method of composite long fiber nonwoven fabrics, also relate to machinery and thermosetting method simultaneously.
Background technology
The purposes of filament nonwoven cloth is more and more wider, and what use the earliest is the product of one pack system, but the non-weaving cloth of this homofil can not satisfy the requirement that some aspects are used, as aspects such as some bedding, amenities, high-grade artificial leather base fabrics.For this reason, the research and development of bicomponent composite fibre non-weaving cloth gets up.As being the patent of CN1177934A (application number 961923792) at the publication number of China application by (U.S.) Kimberley one Clarke Global Co., Ltd, it is a kind of nonwoven laminate with cross directional stretch, the two sides of laminated thing all is the spunbond polymer fibre web that can curl, the intermediate layer is an elastomer polymer, and the spunbond layer that can curl is to constitute with bicomponent fiber polypropylene (core) and polyethylene (shell).This laminated thing has good cross directional stretch and restorative, is adapted at aspects such as medical protection clothes, operation dustcoat, women sanitary articles, diaper as the external application cloth.CN1178267A (ZL92121375.5) patent of researching and developing (day) Chisso Corporation of one of bicomponent fiber the earliest is the compound long fiber nonwoven fabrics of a kind of fluffy high strength, be to differ two kinds of resins more than 15 degrees centigrade with fusing point to be spun into composite long fiber and to make, and use the hot roll crimping, product fluffy, and porous, aeration and permeability for liquids are good, intensity good, are suitable for application such as hygienic material.The patent of the CN1246164A of (day) Mitsui Chemicals application (application number 988022214) is a kind of flexible laminate of nonwoven fabrics in addition, laminated product constitutes with adhesive nonwoven Cheng Buyu melt-blown non-weaving cloth, and non-woven fabric is made by the composite fibre that propylene-ethylene random copolymer and ethylene-based polymer constitute.This material is applicable to hygienic material, packing and clothes outer cover etc.Above-mentioned thick-layer product is applicable to cushion class, instrumentation package class.
In existing the production, composite-fiber nonwoven fabric be a kind of product with a production line, do not have general production line, comprise from drying and play fixed operation.In addition, the corresponding consolidation style of lapper is fixed in the fixed operation, can not dual-purpose.Particularly do not have homofil to become net so far with bicomponent fiber, different bicomponent fibers and non-weaving cloth.
Summary of the invention
At the deficiency that above-mentioned prior art exists, for satisfying needs more widely, the present invention aims to provide the production method of a kind of reduced investment, low, the how wide in variety merit composite fibre of cost spun-bonded non-woven
For achieving the above object, the present invention at first provides a cover production line.Production line also is made up of unit, can satisfy the requirement of various kinds of resin different material, different product.Production line as shown in drawings.According to the spun-bonded non-woven manufacturing technique requirent, three groups by first drying device (1a), second drying device (1b), the 3rd drying device (1c), first screw extruder (2a), second screw extruder (2b), the 3rd screw extruder (2c), the equipment that first filter (3a), second filter (3b), the 3rd filter (3c) are formed can (a raw material be organized with a for 2-3 kind raw material, b, c raw material are organized with b, c, b, c can be identical, also can be different) dry, extruding and filtering.Behind the filter of a group and connect two main manifold (also claiming spinning machine) 4a
1, 4a
2Wherein every manifold is single silk, 16-44 position, spinnerets can be changed according to the process conditions needs, hole count has 36F * 37,72F * 37,36F * 12,72F * 16,36F * 16,72-144F etc., hole type: can satisfy and produce as core-skin type, the requirement of bicomponent fibers such as core-skin type, tangerine lobe type, parallel type, fabric of island-in-sea type partially.And respectively meet a secondary manifold 4a behind the filter of two groups of b, c
1, 4a
2Secondary manifold is not adorned spinnerets, and outlet is connected to main manifold with pipeline respectively.Outside the melt pipe that enters main manifold by secondary manifold melt pipe, thermal sleeve is arranged.Deliver to the melt of main manifold by secondary manifold, in the micropore of special-purpose filament spinning component spinnerets, carry out compound after, from the melt thread of the baseplane of spinnerets ejection through surveying blowing device 5a, 5b, chimneying drafting system 6a, 6b, wire oscillator 7a, 7b, the silk of two wire oscillators pendulum are layered on equably on the lace curtaining (polyester lace curtaining with holes) of a lapper 8 and become net.The lace curtaining of lapper is can two-way transmission adjustable, one side both can also can walk cloth to opposite another side to walking cloth.The fixed equipment of one edge joint acupuncture of lapper is pre-needling machine 9, main needing machine 10, tension adjustment machine 11, side cut lapper 12 according to the order of sequence; The fixed equipment of another edge joint hot rolling of lapper is hot-rolling mill 13, tension adjustment machine 14, side cut lapper 15 and cutting machine 16 according to the order of sequence.The lace curtaining of lapper can directly be sent to fibre web two kinds of consolidation device porch.Each unit of above technological process all can satisfy technological requirement, and its function all can be regulated and control.As:
Drying device: operating temperature: room temperature-180 ℃, drying capacity 100-500kg/h;
Screw extruder: operating temperature 100-320 ± 1 ℃ (promptly can be controlled at any resin operating temperature, accuracy of temperature control is ± 1 ℃, and is as follows); Extrusion capacity: first screw extruder (2a) is 100-350kg/h, and second screw extruder (2b), the 3rd screw extruder (2c) are 30-100kg/h; Operating pressure in use gradually changes, and pressure is more constant behind the filter but be controlled at, and is 7-9 ± 0.15MPa;
Manifold: operating temperature: main manifold 100-320 ± 1 ℃, secondary manifold 100-310 ± 1 ℃, operating pressure 15-25MPa;
Survey blowing device: technology air-supply, wind-warm syndrome 13.0-25.0 ± 0.5 ℃, rheumatism 70 ± 3%, air channel static pressure 500-600Pa; The environment air-supply, wind-warm syndrome 18-20 ℃, rheumatism 70-90%;
The chimneying drafting system, drawing-off tow process speed is 3000-5500m/min;
Lapper: lace curtaining transmits that (walking cloth) speed 2-100m/min walks cloth speed and product category, weight per unit area is relevant, and it is slow more more heavily to walk cloth speed.As needled product: 80-500g/m
2In time, walked cloth speed and should be 7-2.5m/min mutually; Hot-rolled product 20-230g/m
2, speed is 60-8m/min;
Needing machine: bestock 4000-5000 pin/m, 100-1500 time/min of punch frequency, needing machine traverse position 30-40mm, pre-needling machine 40mm, main needing machine 30mm, depth of needling 6-12mm, outlet roller speed 3.0-8.5m/min;
Hot-rolling mill: roller temperature 100-300 ℃, x wire pressure 4-12MPa, outlet roller speed 8-60m/min.
Described various kinds of resin is PET (polyethylene terephthalate), PBT (poly terephthalic acid 1.4-butanediol ester) PA6 (nylon-6), COPET (solubility PET), PP (polypropylene), PE (polyethylene), EPC (second third copolymerization) etc., and every kind of resin also has a plurality of kind trades mark (degree of polymerization, molecular weight, degree of crystallinity, rule are arranged with random etc. different).
Can find out that thus this complete equipment of the present invention can be suitable for the plurality of raw materials resin.As drying device, PET, PBT, PA6, COPET section need heat drying, then can start heating system and give drying; PP, PE do not need drying, then needn't heat.What the present invention was comparatively outstanding is to have arranged three groups of dryings, extruding, filter, and connecing two main manifold in its back, two secondary manifold are if what use is that (b, c raw material are identical for two kinds of resins, be b=c), then the bi-component silk of two main spinning ejections is the same; If three kinds of resins that use, then the bi-component silk that gushes out of two main manifold is different, can make the non-weaving cloth that contains different two kinds of bicomponent fibers, the outlet of a group drying tower has arm to link to each other with the screw extruder import of b, c group in addition, can change b or c and advance a material, because each process conditions of unit are adjustable (comprising temperature, pressure, spinneret orifice number and pass etc.), can be suitable for the requirement of various kinds of resin material spinning, this cover production line can make the non-weaving cloth of diversified bi-component silk like this.Another point is outstanding be since lapper be adjustable double to walking cloth, be equipped with acupuncture and hot rolling consolidation technique, as required can production acupuncture and hot rolling two kind non-weaving cloths.Therefore, the function of this cover production line of the present invention is considerable.
Through a large amount of practice, the present invention tends to more that the production of following kind: PET/COPET is spun-bonded needle punched, the spun-bonded hot rolling non-weaving cloth, wherein especially with the fabric of island-in-sea type bi-component silk for well; PET/PA6 is spun-bonded needle punched, the spun-bonded hot rolling non-weaving cloth, wherein especially with tangerine lobe type bi-component silk for well; Two kinds of Comoposite spunbonded acupunctures of bi-component of PET/COPET and PET/PA6, spunbond heat are pricked non-weaving cloth; PET/PBT spun-bonded hot rolling non-weaving cloth; PET/COPET and the Comoposite spunbonded acupuncture of PET/PBT two components, spun-bonded hot rolling non-weaving cloth; PP/PE spun-bonded hot rolling non-weaving cloth is especially with the core-skin type bi-component silk.Because the high wide application of the relatively good class of this series products performance.
The technological process of production of above-mentioned these products is identical (only last fibre web consolidation technique difference) basically, it is the control of process condition difference, difference mainly concentrates on the resin drying temperature, the temperature of screw rod extruding, the operating temperature of the major and minor manifold of spinning, spinnerets hole count and pass thereof etc.The bicomponent fiber of making as PET, COPET, PA6, PBT.
The resin drying temperature: totally be 120-180 ℃, concrete PET is 170-180 ℃, and COPET is 120-150 ℃, and PA6, PBT are 140-160 ℃; PP and PE do not need dry.
Screw rod extruding: operating temperature: totally be 255-305 ± 1 ℃, be specially PET and be 275-305 ± 1 ℃, COPET is 255-280 ± 1 ℃, PA6 is 260-286 ± 1 ℃, PBT is 270-286 ± 1 ℃, and PP/PE type product: PP is 180-260 ± 1 ℃, and PE is 160-235 ± 1 ℃; Extrusion capacity: PET is 105-320kg/h platform (a main relatively manifold), and COPET, PA6, PBT, PE are 45-90kg/h platform (secondary relatively manifold).
Spinning: condition of spinning manifold temperature: main manifold.Be 288-295 ± 1 ℃ for PET/COPET, PET/PA6, the spinning of PET/PBT bi-component; Spinning is 220-250 ± 1 ℃ to the PP/PE bi-component; Secondary manifold is 270-285 ℃ for PET/COPET, PET/PA6, the spinning of PET/PBT bi-component, and spinning is 200-230 ℃ to the PP/PE bi-component.
Spinnerets hole count: PET/COPET is 36F * 37,72F * 37; PET/PA6 is 36F * 12,36F * 16,72F * 16; PET, PBT are 96-120F; PP/PE can be the unimodule of 96-120F with composite component or the spinnerets hole count of PET/PA6.
Become net: the cloth direction of walking of lapper is owing to produce the spun-bonded non-woven kind and determine with speed, directly gives acupuncture operation conveying fibre web as will the production needled product then walking the cloth direction; Produce hot-rolled product and then walk the cloth direction directly to the defeated fibre web of hot-rolled process.And walk cloth speed and match with fixed, the thick and heavy cloth speed of walking of product is slow; Otherwise product is frivolous, and then to walk cloth speed fast.4 kinds of bi-component silks of technology ejection of the present invention, can produce 6 kinds of fibre webs: 4 kinds by two groups (being made up of spinning, lateral blowing, drawing-off) the identical different tow fibre web of tow PET/COPET, PET/PA6, PET/PBT, PP/PE:2 kind: the composite web of PET/COPET and PET/PA6, PET/COPET and PET/PBT, every kind of fibre web all can be made into acupuncture or hot rolling non-weaving cloth, and these fibre webs can be made 10 types of non-weaving cloths.In addition in order to satisfy the needs of various uses, also have some factors that can change in the production, as two assembly ratios of fiber, fiber thickness, non-weaving cloth light, heavy, thin, thick etc. can be produced the spunbond product of several 10 kinds of different sizes on this cover production line provided by the present invention.Moreover, the quality of product is good, the class height, and the PET/COPET of hot rolling is thinner through the fiber number of opening behind the fibre, becomes superfine fibre, is that other fabric does not possess with soft, the toughness of the various fabrics of its making, the soft performance of gloss etc.; In addition as the base cloth of artificial suede, artificial leather, the network structure of the similar corium bottom of its structure, and air permeability and good is arranged.Make the dermatine product appearance with this fiber and exactly like corium, the fineness of fiber is the 1/200-1/250 of present artificial leather fiber, and gas permeability is 400 times of artificial leather, and folding resistance is 2.8 times of artificial leather.These have all thoroughly changed paper sense, hardboard, air-locked drawback of traditional artificial leather, compare with natural leather have light weight, easily the seam and characteristics such as COLOR FASTNESS height.The purposes of this series products develops just gradually.
Compared with prior art, the characteristics that the present invention gives prominence to are: on a cover production line, the process conditions of equipment are done limited regulation and control, can implement the production of the spun-bonded needle punched and spun-bonded hot rolling non-weaving cloth of multiple bicomponent composite fibre with the plurality of raw materials resin, but also can develop kind except that the said goods, this is that prior art is beyond one's reach.Thus, can save as capital construction, equipment, soil and occupy and multinomial investment such as personal expenditures, product cost cheap, and the enhancing of the ability of the many meeting the market requirement of product variety also are that prior art can't be compared.
Description of drawings
Accompanying drawing is a bicomponent composite fibre production procedure schematic diagram, wherein 1a is first drying device, 1b is second drying device, and 1c is the 3rd drying device, and 2a is first screw extruder, 2b is second screw extruder, 2c is the 3rd screw extruder, and 3a is first filter, and 3b is second filter, 3c is the 3rd filter, 4a
1, 4a
2Be main manifold, 4b
1, 4b
2Be secondary manifold, 5a, 5b are the lateral blowing device, and 6a, 6b are the chimneying drafting system, 7a, 7b are the pendulum wire machine, and 8 is lapper, and 9 is pre-needling machine, and 10 is main needing machine, 11,14 is the tension adjustment machine, and 12,15 are the side cut lapper, and 13 is hot-rolling mill, and 16 is cutting machine.
The specific embodiment
Example 1
The production of the spunbond woven cloths of PET/COPET bicomponent fiber.Technological process as shown in drawings.
(1) production of bicomponent spunbond needle fabric.To walk the cloth direction be to carry fibre web to needing machine to lapper in the technological process.PET is in the 1a drying, filters the back through 2a extruding, 3a and separates and enter two main spinning machine 4a
1, 4a
2In; COPET is respectively in 1b and 1c drying, and respectively through 2b, 2c extruding, 3b, 3c enter secondary separately manifold 4b after filtering
1, 4b
2, enter two main manifold then respectively and carry out the compound spray silk of bi-component.From the identical tow of two main manifold ejection through 5a, the cooling of the lateral blowing of 5b, 6a, the 6b drawing-off evenly is paved into fibre web on the lace curtaining of lapper after 7a, the 7b pendulum wire, and carry to needing machine, through giving the acupuncture of needing machine 9 and main needing machine 10,11 tension adjustment, 12 side cut rolling promptly gets needled product.Its process conditions and the configuration of some equipment are as follows:
Resin drying: PET:175 ± 1 ℃, 5h, drying capacity 240kg/h; COPET:135 ± 1 ℃, 4.5h, ability 120kg/h; Screw rod extruding: PET285 ± 1 ℃, extrusion capacity 320kg/h, COPET:270 ± 1 ℃, two respectively is the extrusion capacity of 90kg/h; Filter back Pressure control is at 8 ± 0.15MPa; The manifold operating temperature: 291 ± 1 ℃ of manifold, secondary manifold are 276 ± 1 ℃; Every of main manifold is 40 positions of row's silk, and its spinnerets hole count 36F * 37,48F * 37,72F * 37 are fabric of island-in-sea type.Secondary manifold melting charge enters main manifold has thermal sleeve between the composite spinning box assembly.
The tow that goes out from the filament spinning component of main manifold is earlier through surveying blowing, and its process conditions are: 1 manifold is joined 2 cover blowing windows, 24 cover blowing windows, single face operation, technology air output 35000m
3/ h, 22 ± 0.5 ℃ of wind-warm syndrome, rheumatism 7 ± 3%, air channel static pressure 500-600Pa, environment air-supply 25000m
3/ h, wind-warm syndrome 18-24 ℃, rheumatism 70-90%.
Tow enters the chimneying drafting system and carries out drawing-off behind cooling curing, air drawing process speed 5000-5500m/min, compressed air enter drafting tube pressure 0.55MPa, every pipe air demand 0.60m
3/ min, feed air temperature 20-40 ℃.
Tow through drawing-off is put tow on the lace curtaining of a lapper uniformly by two wire oscillators, and it is to carry fibre web to needing machine that the lace curtaining convoying curtain is walked the cloth direction, walks cloth speed 6.8m/min.
Pre-, the main needling direction of needing machine is opposite; Bestock 4000-5000 pin/m, 1000-1200 time/min of punch frequency, acupuncture traverse: pre-needling machine 40mm, main needing machine 30mm, depth of needling: pre-needling machine 9mm, main needing machine 6mm.Acupuncture is after tension adjustment, and the side cut rolling obtains PET/COPET bicomponent fiber Spunbond.Its specification is: fabric width 5.3m, grammes per square metre 120g/m
2, filament number, 2.5dtex.
(2) bicomponent spunbond hot rolling non-weaving cloth is produced.Its technology is identical with above-mentioned needling process, and its difference is that it is to carry fibre web to hot-rolling mill that lapper is walked the cloth direction, and walking cloth speed is 5.2m/min; Roller temperature is 250 ± 1 ℃ during hot rolling, x wire pressure 9.5MPa.Hot rolling after tension adjustment, rolling and the non-woven one-tenth cloth of bicomponent spunbond hot rolling, its specification is: fabric width 5.2m, grammes per square metre is 100g/m
2, filament number 1.6dtex.
Example 2
The production of PET/PA6 bicomponent fiber non-weaving cloth.
(1) production of the spun-bonded needle punched non-woven one-tenth cloth of bicomponent fiber.Handicraft flow process such as example 1 it (1), just 1 of raw material COPET is replaced by PA6, and production process has following different with process conditions control:
PA6 is dry in 1b, 1c respectively, and temperature is 150 ± 1 ℃, 278 ± 1 ℃ of screw extruder operating temperatures; It is 275 ± 1 ℃ that PA6 enters its operating temperature of secondary manifold; Main manifold spinnerets hole count is 36F * 12,36F * 16,72F * 16, is tangerine lobe type: lapper is 4.6m/min walk cloth speed when needing machine is carried fibre web.All the other process conditions controls and example 1 it (1) are together.Product P ET/PA6 Spunbond fabric width 5.3m, its grammes per square metre is 280g/m
2, filament number 4.0dtex.
(2) production of bicomponent fiber spun-bonded hot rolling non-weaving cloth.Technological process such as example 1 they (2), 1 PA6 of raw material replaces COPET, and other are all identical with above-mentioned it (1) except for the following differences for control of process condition.1, lapper is carried fibre web to hot-rolling mill, and 2, to walk cloth speed be 3.0m/min, 3, the hot-rolling mill roller temperature is 250 ± 1 ℃, x wire pressure 9.5MPa.Product P ET/PA6 spun-bonded hot rolling non-weaving cloth fabric width 5.2m, grammes per square metre is 200g/m
2, filament number 1.8dtex.
Example 3
The production of PET/PBT bicomponent fiber spun-bonded hot rolling non-weaving cloth.
Handicraft flow process such as example 1, lapper is carried fibre web to hot-rolling mill.The COPET of one of raw material is replaced by PBT.Control of process condition is all identical with example 1 except that following several places change:
PBT respectively in 1b, 1c in dry, temperature is 150 ± 1 ℃, drying time 5h, all dry resin moisture≤30ppm.Dry good PBT through the screw rod extruding, after the filtration, is introduced into laggard manifold and the compound spray silk of PET of becoming owner of of secondary manifold respectively.PBT 278 ± 1 ℃ of its operating temperatures in screw extruder, entering its operating temperature of secondary spinning machine is 279 ± 1 ℃.The spray plate hole number of two main manifold is 96-120F, is tangerine lobe type.After become net on the lace curtaining of pendulum wire machine pendulum wire at lapper, lapper is carried fibre web to hot-rolling mill through lateral blowing, chimneying drawing-off for spray silk, and it walks cloth speed is 31m/min; 260-270 ℃ of hot-rolling mill roller temperature, x wire pressure 8-10MPa.
The specification of PET/PBT bicomponent spunbond hot rolling non-weaving cloth: weight: 40g/m
2, filament number 1.11dtex, fabric width 5.2m.
Example four
The production of PP/PE bicomponent fiber spun-bonded hot rolling non-weaving cloth.
Technological process as shown in drawings, PP, PE grain need not drying directly enter screw extruder.The PP material is filtered into two main manifold, 246 ± 1 ℃ of screw extruder operating temperatures, 236 ± 1 ℃ of main manifold operating temperatures through extruding; The PE material divides two-way through pushing, being filtered into two secondary manifold, 220 ± 1 ℃ of screw extruder operating temperatures, 210 ± 1 ℃ of secondary manifold operating temperatures.Screw extruder extrusion capacity PP280kg/h (1), PE:180 (two, every 90) kg/h.The unimodule that main manifold spinnerets hole count is 120F is a core-skin type.The spray silk is through lateral blowing, chimneying drawing-off.Pendulum wire is directly delivered to hot-rolling mill with fibre web on the lace curtaining of lapper, walk cloth speed 12m/min; Roller temperature 135-145 ℃, x wire pressure 6MPa.
The specification of PP/PE bicomponent spunbond hot rolling non-weaving cloth is:, fabric width 5.2m, grammes per square metre: 150g/m
2, filament number 1.8dtex.
Example 5
The production of two kinds of Comoposite spunbonded acupunctures of bi-component of PET/COPET and PET/PA6, spun-bonded hot rolling non-weaving cloth.
Technological process is as shown in drawings: the PET section through 1a drying, 2a extrude, 3a filters the back branch and becomes owner of manifold 4a
1, 4a
2COPET and PA6 in 1b, 1c drying, extrude through 2b, 2c respectively respectively again, and 3b, 3c go into secondary manifold 4b respectively after filtering
1, 4b
2, divide again to be clipped to main manifold, carry out PET/COPET and PET/PA6 bi-component spray silk.Two kinds of compound different bi-component spray silks are all through 5a, 5b lateral blowing, 6a, the drawing-off of 6b chimneying, and 7a, 7b pendulum wire become net on lapper 8, can produce different bi-component composite acupunctures or hot rolling non-weaving cloth as the two-way conveying of lapper as described in the example 1,2.The process conditions of its each step are: the drying of PET and COPET, extruding, filtration, branch go into to advocate peace the process conditions of secondary manifold and compound spray silk, lateral blowing, drawing-off, pendulum wire and example 1 with; And the process conditions of the same step of PET and PA6 and example 2 are together.Needled product needs lapper to carry fibre web to needing machine, and it walks cloth speed 4.6m/min, and through pre-, main acupuncture, tension adjustment, side cut rolling form PET/COPET and the Comoposite spunbonded needle fabric of PET/PA6, and its grammes per square metre is 280g/m
2, filament number 4.0dtex.
Hot-rolled product needs lapper to carry fibre web to hot-rolling mill, and it walks cloth speed 4m/min, through the hot-rolling mill hot rolling, and roller temperature 255-260 ℃, horizontal line pressure 6-7MPa.Form PET/COPET and the Comoposite spunbonded hot rolling non-weaving cloth of PET/PA6 through tension adjustment side cut rolling again.Its grammes per square metre 130g/m
2, filament number 1.5dtex.
Example 6
The production of PET/COPET and the Comoposite spunbonded acupuncture of PET/PBT bi-component, spun-bonded hot rolling non-weaving cloth.
Technological process replaces PA6 with example 5 with PBT; Process conditions and example 1, example 3 with, become net and acupuncture, hot rolling identical with example 5.Product specification:
The grammes per square metre 200g/m of spun-bonded needle punched product
2, filament number 3.5dtex; Spinnerets hole count: 36F * 37 lappers are walked cloth speed: 5.6m/min.
The grammes per square metre 150g/m of its spun-bonded hot rolling product
2, spinnerets hole count: 36F * 12, filament number 1.5dtex, lapper walk cloth speed: 3.3m/min.
Claims (9)
1, a kind of production method of composite fibre spun-bonded non-woven, by 2 kinds of resin dryings, extruding, spinning, lateral blowing, drawing-off, one-tenth net and fixed forming, it is characterized in that on a production line, can using various kinds of resin to carry out 2 or the spinning of 3 kind of raw material bi-component, and implement two groups of bicomponent fibers identical or inequality and become that the fixed many kinds of net are spun-bonded needle punched, the method for spun-bonded hot rolling non-weaving cloth, its technological process and equipment are configured to:
2 or 3 kind of resin respectively through first drying device (1a), second drying device (1b), the 3rd drying device (1c) drying, first screw extruder (2a), second screw extruder (2b), the 3rd screw extruder (2c) extruding, first filter (3a), second filter (3b), the 3rd filter (3c) filter; Resin by first filter (3a) enters main manifold (4a respectively side by side
1, 4a
2), enter secondary manifold (4b respectively by the resin of second filter (3b), the 3rd filter (3c)
1, 4b
2), then enter two main manifold respectively and carry out composite spinning with the resin that directly enters main manifold; The resin that enters second drying device (1b), the 3rd drying device (1c) can be identical, also can be inequality; (((7a, pendulum wire 7b) become net on the lace curtaining of the lapper (8) of can be two-way walking cloth of coexisting to wire oscillator to the chimneying drafting system for 6a, drawing-off 6b) for 5a, 5b) lateral blowing cooling through the lateral blowing device respectively from two main manifold ejection bi-component silks; Fibre web after becoming net on the lace curtaining is delivered to pre-needling machine (9), main needing machine (10) acupuncture, and through tension adjustment machine (11), side cut lapper (12) is processed into spun-bonded needle punched product; Lace curtaining is delivered to hot-rolling mill (13) hot rolling with fibre web, is processed into the spun-bonded hot rolling product through tension adjustment machine (14) side cut lapper (15) and cutting machine (16);
Control of process condition in the technological process: 1. drying device: operating temperature: room temperature-180 ℃, drying capacity 100-500kg/h; 2. screw extruder: operating temperature 100-320 ± 1 ℃, extrusion capacity: first screw extruder (2a) is 100-350kg/h, second screw extruder (2b) and the 3rd screw extruder (2c) are 30-100kg/h, filter back pressure 7-9 ± 0.15MPa; 3. manifold: 16-44 of every single silk of main manifold, spinnerets hole count: the different spinneretss of different product, as 36F * 37,72F * 37,36F * 12,36F * 16,72F * 16,72-144F, its pass has core-skin type, tangerine lobe type, parallel type, fabric of island-in-sea type, operating temperature 100-320 ± 1 ℃; Secondary manifold does not have spinnerets, operating temperature 100-310 ± 1 ℃, operating pressure 15-25MPa; 4. lateral blowing device: technology air-supply, wind-warm syndrome 13.0-25.0 ± 0.5 ℃, rheumatism 7 ± 3%, air channel static pressure 500-600pa, environment air-supply, wind-warm syndrome 18-24 ℃, rheumatism 70-90%; 5. chimneying drafting system: drawing-off tow process speed 3000-5500m/min; 6. lapper: adjustable double is to walking cloth, transporting velocity 2-100m/min; Described various kinds of resin is thermoplasticity PET, COPET, PA6, PBT, PP, PE, EPC.
2, according to the production method of the described composite fibre spun-bonded non-woven of claim 1, it is characterized in that described composite fibre spun-bonded non-woven is the production method of PET/COPET, PET/PA6, the acupuncture of PET/PBT bicomponent spunbond and spun-bonded hot rolling non-weaving cloth, the equal drying of the PET of three series products, enter arranged side by side two main manifold after extruding, filtering, COPET, PA6, PBT drying, enter secondary manifold after extruding, filtering, then enter main manifold and PET again and carry out compound spray silk; Control of process condition is in the technological process:
Drying device: operating temperature: 120-180 ℃; Screw extruder: operating temperature 255-305 ± 1 ℃; Manifold: main manifold operating temperature 288-295 ± 1 ℃; Spinnerets hole count 36F * 37,72F * 37,36F * 12,36F * 16,72F * 16,96-144F; Secondary manifold operating temperature 270-280 ± 1 ℃; Lapper is walked cloth speed: when carrying fibre web toward needing machine is 7-2.5m/min, is 60-8m/min when carrying fibre web toward hot-rolling mill.
3, according to the production method of claim 1 or 2 described composite fibre spun-bonded non-wovens, it is characterized in that described composite fibre spun-bonded non-woven is the production method of the acupuncture of PET/COPET bicomponent spunbond, spun-bonded hot rolling non-weaving cloth, control of process condition is in its technological process:
Drying device: operating temperature: PET is 170-180 ℃, and COPET is 120-150 ℃; Screw extruder: operating temperature: PET is 275-305 ± 1 ℃, and COPET is 255-280 ± 1 ℃; Manifold: main condition of spinning manifold temperature 288-295 ± 1 ℃, secondary condition of spinning manifold temperature are 270-280 ± 1 ℃, and the spinnerets hole count is 36F * 37,72F * 37.
4, according to the production method of claim 1 or 2 described composite fibre spun-bonded non-wovens, it is characterized in that described composite fibre spun-bonded non-woven is the production method of the acupuncture of PET/PA6 bicomponent spunbond, spun-bonded hot rolling non-weaving cloth, control of process condition is in its technological process:
Drying device: operating temperature: PET is that 170-180 ℃, PA6 are 140-160 ℃; Screw extruder: operating temperature: PA6 is 260-286 ± 1 ℃, and PET is 275-305 ± 1 ℃; Manifold: main condition of spinning manifold temperature 288-295 ± 1 ℃, secondary manifold: 270-285 ± 1 ℃, the spinnerets hole count is: 36F * 12,36F * 16,72F * 16.
5, according to the production method of claim 1 or 2 described composite fibre spun-bonded non-wovens, it is characterized in that described composite fibre spun-bonded non-woven is the production method of the acupuncture of PET/PBT bicomponent spunbond, spun-bonded hot rolling non-weaving cloth, control of process condition is in its technological process:
Drying device: operating temperature: PET is that 170-180 ℃, PBT are 140-160 ℃; Screw extruder: operating temperature: PET is 275-305 ± 1 ℃, and PBT is 270-286 ± 1 ℃; Manifold: main condition of spinning manifold temperature 288-295 ± 1 ℃, secondary condition of spinning manifold temperature 270-285 ± 1 ℃, the spinnerets hole count is 96-120F.
6, production method according to the described composite fibre spun-bonded non-woven of claim 1, it is characterized in that described composite fibre spun-bonded non-woven is the production method of different two kinds of Comoposite spunbonded acupunctures of bicomponent fiber and spun-bonded hot rolling non-weaving cloth, PET in technological process, COPET, PA6, three kinds of different resins among the PBT carry out drying at three cover drying devices respectively, melt and spray out different through piping drawing-off and pendulum wire bi-component silk from two main manifold, through lateral blowing, pipeline drawing-off and pendulum wire, the fibre web that on the lace curtaining of lapper, is paved into by two kinds of different bicomponent fibers, thus it is spun-bonded needle punched to make two kinds of different bicomponent fibers, the spun-bonded hot rolling non-weaving cloth; Its control of process condition is:
Drying device operating temperature: PET:170-180 ℃, COPET, PA6:120-150 ℃, PBT:140-160 ℃; Screw extruder operating temperature: PET:275-305 ± 1 ℃, COPET:255-280 ± 1 ℃, PA6:260-286 ± 1 ℃, PBT:275-288 ℃; Manifold; Main condition of spinning manifold temperature 288-295 ± 1 ℃, secondary condition of spinning manifold temperature 270-285 ± 1 ℃.
7,, it is characterized in that described composite fibre spun-bonded non-woven is that PET/COPET and two kinds of bicomponent composite fibres of PET/PA6 are spun-bonded needle punched, the production method of spun-bonded hot rolling non-weaving cloth according to the production method of claim 1 or 6 described composite fibre spun-bonded non-wovens; Enter two main manifold respectively side by side after PET drying in the technological process in three kinds of raw materials, extruding, the filtration; And COPET, PA6 enter secondary manifold respectively after drying, extruding, the filtration respectively, enter main manifold and PET at last and carry out the compound spray silk of bi-component.
8,, it is characterized in that described composite fibre spun-bonded non-woven is that PET/COPET and two kinds of bicomponent composite fibres of PET/PBT are spun-bonded needle punched, the production method of spun-bonded hot rolling non-weaving cloth according to the production method of claim 1 or 6 described composite fibre spun-bonded non-wovens; In the technological process, enter main manifold respectively side by side after the PET drying in three kinds of raw materials, extruding, the filtration; And COPET, PBT enter secondary manifold respectively after drying, extruding, the filtration respectively, enter main manifold and PET at last and carry out the compound spray silk of bi-component.
9, according to the production method of the described composite fibre spun-bonded non-woven of claim 1, it is characterized in that described composite fibre spun-bonded non-woven is the production method of PP/PE bicomponent spunbond hot rolling non-weaving cloth, PP does not need drying directly to send first screw extruder (2a) in the technological process, enters two main manifold respectively after extruding, filtration; PE is respectively through extruding, enter two secondary manifold respectively after filtering, and laggardly becomes owner of manifold and PP carries out the bi-component spray silk; Control of process condition is in the technological process:
Screw extruder: operating temperature: PP:180-260 ± 1 ℃, PE:160-220 ± 1 ℃; Manifold: main manifold operating temperature 220-250 ± 1 ℃, spinnerets pass: core-skin type, hole count 36-120F, secondary manifold operating temperature 200-230 ± 1 ℃; Lapper is walked cloth speed: 60-8m/min.
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| CN111519339A (en) * | 2020-04-21 | 2020-08-11 | 湖南省爱意缘家居有限公司 | Mattress material and manufacturing method thereof |
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