CN103640308A - Processing technology of non-woven fabric composite material for automotive interior - Google Patents
Processing technology of non-woven fabric composite material for automotive interior Download PDFInfo
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- CN103640308A CN103640308A CN201310617629.6A CN201310617629A CN103640308A CN 103640308 A CN103640308 A CN 103640308A CN 201310617629 A CN201310617629 A CN 201310617629A CN 103640308 A CN103640308 A CN 103640308A
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Abstract
The invention relates to a processing technology of a non-woven fabric composite material for automotive interior. The method is characterized by comprising the following steps: (1) evenly spraying polyethylene powder particles on a non-woven fabric bottom layer through a powder spraying device, wherein machine speed for the non-woven fabric bottom layer is 1.8-2.5m/min, vibration amplitude of a vibrating screen is 2-5mm, and the number of meshes of the vibrating screen is 10-20 meshes; (2) placing the non-woven fabric bottom layer with polyethylene powder particles in a drying room, setting temperature in the drying room to be 150-190 DEG C, wherein inside of the drying room is divided into three heating regions according to the temperature from the fabric feeding direction to the fabric discharging direction, the temperature of the three regions rises gradually, and the distance between an electric heating quartz tube at upper part of the drying room and the non-woven fabric bottom layer is 60-80mm; and (3) compositing the non-woven fabric bottom layer output from a fabric discharge port of the drying room and a non-woven fabric surface layer together on a cooling compression roller to obtain the composite non-woven fabric; and after outputting the composite non-woven fabric by a conveying roller, cutting and winding the composite non-woven fabric to obtain the non-woven fabric composite material for automotive interior. With the processing technology, cost can be reduced, and energy consumption can be lowered.
Description
Technical field
The present invention relates to a kind of processing technology of automobile nonwoven carpet, the processing technology of non-woven fabric composite material for especially a kind of automotive trim.
Background technology
Two-layer and the three-decker carpet compound working procedure processing method of the nonwoven of existing coiled material and sheet material comprises following two kinds:
A kind of is the composite of double-layer structure; Method be by two-layer (surface layer and bottom) carpet be superimposed again by together with needing machine operation, utilize pricker that two-layer nonwoven fiber is colluded with together, two-layer nonwoven is combined with each other.Concrete technology flow process is: surface layer production procedure: mixed cotton → combing → lapping → acupuncture → formation surface layer; Bottom production procedure: mixed cotton → combing → lapping → acupuncture → formation bottom.Again bottom and surface layer are superimposed enter together with needing machine form two-layer composite after closing thorn, then dispatch from the factory through test package.
Another kind is to adopt barrel to extrude melting PE to form a very thin skim by the extrusion bonded technique that forms three-decker of two-layer nonwoven together, three layers of compound nonwoven carpet cross-section structure that processing obtains as shown in Figure 1 surface layer 1a and bottom 2a bonding by middle PE film adhesive layer 3a.Concrete technology flow process is: surface layer: mixed cotton → combing → lapping → acupuncture → napping → gum; Bottom: mixed cotton → combing → lapping → acupuncture → with surface layer film compound → in flakes or rolling → test package dispatch from the factory.When existing technological process is machined to compound working procedure, the method that two kinds of grey cloths of nonwoven carpet (surface layer and bottom) compound tense adopts is: first the connection jointing material of using in the middle of two-layer nonwoven is electrically heated to the state of complete melting (180 ℃-290 ℃) at the barrel of film machine, then with powerful motor, by screw rod, the jointing material of fusing is pressed to the die head that is electrically heated to high temperature, by the long and narrow gap of die head die orifice, extrude and form aqueous water tentiform film and fall in the middle of two-layer nonwoven, surface layer, PE film, bottom almost enters the tangent line position of two rolls simultaneously, through two roller extruding, two-layer nonwoven is bonded together.It is just level and smooth from die orifice water curtain shape PE film surface-brightening out that this kind of method makes, and falls between two-layer nonwoven through extrusion bonded; The problem existing is that the middle PE layer forming is very fine and close, even, level and smooth, cooling rear hard, and two-layer nonwoven is separated completely, there is no gas permeability between two-layer nonwoven.
In prior art, composite carpet processing unit (plant) as shown in Figure 2, bottom 2a enters the cooling pressure roller 5a of multiple film through trimming knife rest 4a, surface layer 1a also enters the cooling pressure roller 5a of multiple film, the cooling pressure roller 5a of multiple film top arranges bonding particle hopper 6a, bonding particle hopper 6a below arranges electrical heating screw cylinder 7a, and electrical heating screw cylinder 7a discharging opening is installed electrical heating die head 8a; After surface layer 1a and bottom 2a are compound on the cooling pressure roller 5a of multiple film, by conveying roller, transfer to storage cloth holder 9a, the carpet in storage cloth holder 9a obtains finished product successively after output press roll 10a, cut-off knife 11a cutting, winder 12a rolling.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the processing technology of a kind of automotive trim with non-woven fabric composite material is provided, can reduce cost, reduce energy consumption.
According to technical scheme provided by the invention, the processing technology of non-woven fabric composite material for described automotive trim, is characterized in that, comprises the following steps:
(1) bottom layer of non-woven fabrics is passed through to dusting device, evenly sprinkle polyethylene powders particle on bottom layer of non-woven fabrics, the speed of a motor vehicle of bottom layer of non-woven fabrics is 1.8～2.5m/min, and the Oscillation Amplitude of vibratory sieve is 2～5mm, and the netted hole order number of vibratory sieve is 10～20 orders;
(2) bottom layer of non-woven fabrics that sprinkles polyethylene powders particle enters drying room, temperature in drying room is 150～190 ℃, temperature in drying room is divided into three thermals treatment zone, temperature and raises gradually to going out cloth direction by entering cloth direction, and the distance between drying room top electrothermal quartz tube and bottom layer of non-woven fabrics is 60～80mm;
(3) bottom layer of non-woven fabrics of being exported by drying room exit slot and nonwoven surface layer are compound on cooling pressure roller, obtain compound nonwoven cloth; Compound nonwoven cloth obtains described automotive trim non-woven fabric composite material after exporting rear cutting, rolling by conveying roller.
The particle diameter of described polyethylene particle is 40 orders.
The grammes per square metre of described bottom layer of non-woven fabrics is 700～1000g/ ㎡.
The grammes per square metre of described nonwoven surface layer is 200～320g/ ㎡.
It is 400 ± 50 pins/cm that described nonwoven surface layer forms density through napping
2, be highly the short flannel of 5mm ± 1.
The present invention has the following advantages: (1) the present invention can reduce the materials cost of three layers of composite carpet intermediate adhesion material used in process of production, electric quantity consumption while reducing the heating of intermediate adhesion material and film extrusion, process equipment input cost reduces, and occupation area of equipment reduces; (2) composite that the present invention obtains is configured in automobile, can increase sound-absorbing effect, reduces the noise producing in vehicle traveling process, improves and takes environment, improves comfort level.
Accompanying drawing explanation
Fig. 1 is three layers of compound nonwoven carpet sectional structure chart that existing processes obtains.
Fig. 2 is the structural representation of the device of existing processes composite carpet.
Fig. 3 is the structural representation of processing unit (plant) of the present invention.
Fig. 4 is the profile that the present invention processes the non-woven fabric composite material obtaining.
The specific embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 3: described automotive trim comprises the first debatching tourist bus 1 with the processing unit (plant) of non-woven fabric composite material, bottom layer of non-woven fabrics 2, conveying roller 3, dusting device 4, backgauge roller 5, hopper 6, adhesive powder particle 7, vibratory sieve 8, vibrating motor 9, convoying curtain 10, electrothermal quartz tube 11, drying room 12, the second debatching tourist bus 13, nonwoven surface layer 14, storage cloth holder 15, tension bracket 16, pressurized cylinder 17, cooling pressure roller 18, meter counter 19, carry pressure roller 20, cut-off knife 21, winder 22, cut-parts platform 23, convoying curtain roller 24, backgauge adhesive tape 25 etc.
As shown in Figure 3, automotive trim of the present invention comprises the first debatching tourist bus 1 with the processing unit (plant) of non-woven fabric composite material, on the first debatching tourist bus 1, place bottom layer of non-woven fabrics 2, the cloth direction that goes out at the first debatching tourist bus 1 sets gradually dusting device 4 and drying room 12, between the first debatching tourist bus 1 and dusting device 4, conveying roller 3 is set, convoying curtain roller 24 is installed at two ends at drying room 12, winding convoying curtain 10 on the convoying curtain roller 24 at two ends, the cloth direction of entering on the top of drying room 12 along bottom layer of non-woven fabrics 2 is arranged in order many electrothermal quartz tubes 11; The second debatching tourist bus 13 and storage cloth holder 15 are installed at the top of described drying room 12, and what storage cloth holder 15 was arranged on the second debatching tourist bus 13 goes out cloth direction one side, on the second debatching tourist bus 13, places nonwoven surface layer 14; Cloth direction one side that goes out at described drying room 12 sets gradually cooling pressure roller 18, carries pressure roller 20, cut-off knife 21, winder 22 and cut-parts platform 23, between storage cloth holder 15 and cooling pressure roller 18, tension bracket 16 is set, between cooling pressure roller 18 and conveying pressure roller 20, meter counter 19 is set; Described dusting device 4 comprises hopper 6, places adhesive powder particle 7 in hopper 6, at the discharging opening place of hopper 6 bottoms, backgauge roller 5 is set, and in the both sides of backgauge roller 5, backgauge adhesive tape 25 is set, backgauge adhesive tape 25 and backgauge roller 5 Surface Contacts; Vibratory sieve 8 is set below described backgauge roller 5, and vibratory sieve 8 is connected with vibrating motor 9; The surface of described backgauge roller 5 is pitted skin, during 5 rotation of backgauge roller, the pitted skin of backgauge roller 5 drives 7 motions of adhesive powder particle, from backgauge adhesive tape 25 and 5, backgauge roller, being equably waterfall shape falls into vibratory sieve 8, through the effect of vibration of vibrating motor 9, the netted hole that adhesive powder particle 7 sees through vibratory sieve 8 is sprinkling upon on the bottom layer of non-woven fabrics 3 in advancing equably; The netted hole order number of described vibratory sieve 8 is 10～20 orders;
As shown in Figure 3, pressurized cylinder 17 is installed above described cooling pressure roller 18, the piston rod of pressurized cylinder 17 is connected with the cooling pressure roller 18 on top, together with nonwoven surface layer 14 is extrusion bonded with bottom layer of non-woven fabrics 2.
The course of work of the present invention is: bottom layer of non-woven fabrics 2 sprinkles adhesive powder particle 7 equably at dusting device 4 places, under the dragging of convoying curtain 10, enter immediately hot drying room, under the baking of the electrothermal quartz tube 11 of drying room 12, bottom layer of non-woven fabrics 2 deliquescing gradually, adhesive powder particle 7 melts gradually, exit slot and compound cooling pressure roller 18 centres that together enter of nonwoven surface layer 14 to drying room 12, under the pressure of pressurized cylinder 17, by the adhesive powder particle 7 melting, bottom layer of non-woven fabrics 2 and nonwoven surface layer 14 are bonded together securely; By meter counter 19, conveying pressure roller 20, cut-off knife 21, winder 22 processing, obtain finished product again, produce as shown in Figure 4, nonwoven surface layer 14 and bottom layer of non-woven fabrics 2 are by intermediate layer 26(polyethylene) bonding.
Embodiment mono-: the processing technology of non-woven fabric composite material for a kind of automotive trim, comprises the following steps:
(1) bottom layer of non-woven fabrics is passed through to dusting device, on bottom layer of non-woven fabrics, evenly sprinkle polyethylene powders particle, the speed of a motor vehicle of bottom layer of non-woven fabrics is 1.8m/min, and the Oscillation Amplitude of vibratory sieve is 2mm, the netted hole order number of vibratory sieve is 10 orders, and the particle diameter of polyethylene powders particle is 40 orders; Described bottom layer of non-woven fabrics is formed by conventional nonwoven production operations such as process mixed cotton, combing, lapping, acupuncture such as polyester fiber, polypropylene, waste cotton, nonwoven carpet leftover bits and pieces, grammes per square metre is 700g/ ㎡, in bottom layer of non-woven fabrics, contain polypropylene and can guarantee that sizing hands over fruit, and mix other lower cost materials and be beneficial to twice laid and reduce product cost; Grammes per square metre is larger, has the effect of sound-absorbing, noise reduction, damping;
(2) bottom layer of non-woven fabrics that sprinkles polyethylene powders particle enters drying room, temperature in drying room is divided into three thermals treatment zone, temperature and raises gradually to going out cloth direction by entering cloth direction, the temperature in one district, 2nd district, 3rd district is respectively 150 ℃, 175 ℃, 190 ℃, and the distance between drying room top electrothermal quartz tube and bottom layer of non-woven fabrics is 60mm;
(3) bottom layer of non-woven fabrics of being exported by drying room exit slot and nonwoven surface layer are compound on cooling pressure roller, obtain compound nonwoven cloth; Compound nonwoven cloth obtains described automotive trim non-woven fabric composite material after exporting rear cutting, rolling by conveying roller; Described nonwoven surface layer is formed through common process such as mixed cotton, combing, lapping, acupuncture, napping, gums by polyester fiber, and grammes per square metre is 200g/ ㎡, and it is 350 pins/cm that nonwoven facing surface has density
2, be highly the short flannel of 4mm, keep good surperficial style and the outward appearance of product.
Embodiment bis-: the processing technology of non-woven fabric composite material for a kind of automotive trim, comprises the following steps:
(1) bottom layer of non-woven fabrics is passed through to dusting device, on bottom layer of non-woven fabrics, evenly sprinkle polyethylene powders particle, the speed of a motor vehicle of bottom layer of non-woven fabrics is 2.5m/min, and the Oscillation Amplitude of vibratory sieve is 5mm, the netted hole order number of vibratory sieve is 20 orders, and the particle diameter of polyethylene powders particle is 40 orders; Described bottom layer of non-woven fabrics is formed by conventional nonwoven production operations such as process mixed cotton, combing, lapping, acupuncture such as polyester fiber, polypropylene, waste cotton, nonwoven carpet leftover bits and pieces, grammes per square metre is 1000g/ ㎡, in bottom layer of non-woven fabrics, contain polypropylene and can guarantee that sizing hands over fruit, and mix other lower cost materials and be beneficial to twice laid and reduce product cost; Grammes per square metre is larger, has the effect of sound-absorbing, noise reduction, damping;
(2) bottom layer of non-woven fabrics that sprinkles polyethylene powders particle enters drying room, temperature in drying room is divided into three thermals treatment zone, temperature and raises gradually to going out cloth direction by entering cloth direction, the temperature in one district, 2nd district, 3rd district is respectively 155 ℃, 180 ℃, 190 ℃, and the distance between drying room top electrothermal quartz tube and bottom layer of non-woven fabrics is 80mm;
(3) bottom layer of non-woven fabrics of being exported by drying room exit slot and nonwoven surface layer are compound on cooling pressure roller, obtain compound nonwoven cloth; Compound nonwoven cloth obtains described automotive trim non-woven fabric composite material after exporting rear cutting, rolling by conveying roller; Described nonwoven surface layer is formed through common process such as mixed cotton, combing, lapping, acupuncture, napping, gums by polyester fiber, and grammes per square metre is 320g/ ㎡, and it is 450 pins/cm that nonwoven facing surface has density
2, be highly the short flannel of 6mm, keep good surperficial style and the outward appearance of product.
Embodiment tri-: the processing technology of non-woven fabric composite material for a kind of automotive trim, comprises the following steps:
(1) bottom layer of non-woven fabrics is passed through to dusting device, on bottom layer of non-woven fabrics, evenly sprinkle polyethylene powders particle, the speed of a motor vehicle of bottom layer of non-woven fabrics is 2.0m/min, and the Oscillation Amplitude of vibratory sieve is 4mm, the netted hole order number of vibratory sieve is 15 orders, and the particle diameter of polyethylene powders particle is 40 orders; Described bottom layer of non-woven fabrics is formed by conventional nonwoven production operations such as process mixed cotton, combing, lapping, acupuncture such as polyester fiber, polypropylene, waste cotton, nonwoven carpet leftover bits and pieces, grammes per square metre is 800g/ ㎡, in bottom layer of non-woven fabrics, contain polypropylene and can guarantee that sizing hands over fruit, and mix other lower cost materials and be beneficial to twice laid and reduce product cost; Grammes per square metre is larger, has the effect of sound-absorbing, noise reduction, damping;
(2) bottom layer of non-woven fabrics that sprinkles polyethylene powders particle enters drying room, temperature in drying room is divided into three thermals treatment zone, temperature and raises gradually to going out cloth direction by entering cloth direction, the temperature in one district, 2nd district, 3rd district is respectively 165 ℃, 180 ℃, 190 ℃, and the distance between drying room top electrothermal quartz tube and bottom layer of non-woven fabrics is 70mm;
(3) bottom layer of non-woven fabrics of being exported by drying room exit slot and nonwoven surface layer are compound on cooling pressure roller, obtain compound nonwoven cloth; Compound nonwoven cloth obtains described automotive trim non-woven fabric composite material after exporting rear cutting, rolling by conveying roller; Described nonwoven surface layer is formed through common process such as mixed cotton, combing, lapping, acupuncture, napping, gums by polyester fiber, and grammes per square metre is 250g/ ㎡, and it is 400 pins/cm that nonwoven facing surface has density
2, be highly the short flannel of 5mm, keep good surperficial style and the outward appearance of product.
The processing technology of non-woven fabric composite material of the present invention has the following advantages: (1) has simplified non-woven fabric compounded intermediate adhesion material processing used, adopt quartz ampoule electrical heating (80KW) mode to soften bottom layer of non-woven fabrics and bonding powdered granule, power consumption adopts heavy-duty motor (160KW) to extrude the membranaceous mode of formation than existing process using barrel, the complete melting PE material of die head heat exchange pattern electrical heating (400KW) to liquid (keeping 180 ℃～290 ℃) will reduce 30%, (2) jointing material consumption in intermediate layer is few, 200～220g/m for film in prior art
2, in the duration of the present invention, be 120～140g/m
2can meet bonding or client's technical requirement, (3) to change batch efficiency high for jointing material, corresponding enhancing productivity, prior art is in exploitation, on probation or change compound while using jointing material, material in barrel must be under hot, first add virgin material heating, with driven by motor barrel inner screw, force to extrude after old material with virgin material, can carry out new lot production, the old material of extruding forms after lump is pulverized again and could recycle, and residual old clout still in barrel, take time and effort, when adjusting film grammes per square metre and thickness specification, also can produce many leftover bits and pieces in addition, the present invention totally renews material by solid state powder shape material cleaning in hopper under normal temperature laboratory state, easy and simple to handle, (4) processing unit (plant) cost of the present invention is low, less investment, and equipment plane figure yi word pattern than original film equipment tee T (extruder barrel, die head have guide rail to need dynamic mobile, and with goods batch channel vertical, become tee T) little 40 ~ 70% left and right of layout footprint, (5) the present invention obtains non-woven fabric composite material sound-absorbing, sound deadening are strong, and the product that noise reduction is produced than prior art is good, rather than sound is blocked to refraction again pass to other place, and this puts client and is processed into testing authentication after molding, reason is that bonding powdered granule drops on bottom layer of non-woven fabrics and enters after drying room, because of what be subject to, be far infrared radiation heat, particle internal and external temperature is different, particle surface melting but granule interior center does not reach the state that thoroughly dissolves, similar water cement mortar is the same, under this state and surface layer bottom together to enter pressure roller bonding through pushing now between polyethylene particle surface, melt granules surface is bonding with nonwoven, surface layer and bottom are combined with each other, different with granule interior density between particle surface, density is inhomogeneous in a jumble, this kind of mixed and disorderly state has certain sound absorption function, the sound of nonwoven one side is after the sound-absorbing of ground floor, lingering sound is further eliminated through different mixed and disorderly intermediate layer and the 3rd layer of nonwoven of density again, and the good PE film of totally-enclosed Smooth Densities even compact produces echo reflection and goes out in the middle of running into after the product of prior art processing to be sound see through layer of non-woven fabric, by other approach, be delivered to again in driver and conductor's ear, two kinds of processing methods are compared, and the product absorbing sound and lowering noise effect that the present invention obtains will be got well.
Claims (5)
1. a processing technology for non-woven fabric composite material for automotive trim, is characterized in that, comprises the following steps:
(1) bottom layer of non-woven fabrics is passed through to dusting device, evenly sprinkle polyethylene powders particle on bottom layer of non-woven fabrics, the speed of a motor vehicle of bottom layer of non-woven fabrics is 1.8～2.5m/min, and the Oscillation Amplitude of vibratory sieve is 2～5mm, and the netted hole order number of vibratory sieve is 10～20 orders;
(2) bottom layer of non-woven fabrics that sprinkles polyethylene powders particle enters drying room, temperature in drying room is 150～190 ℃, temperature in drying room is divided into three thermals treatment zone, temperature and raises gradually to going out cloth direction by entering cloth direction, and the distance between drying room top electrothermal quartz tube and bottom layer of non-woven fabrics is 60～80mm;
(3) bottom layer of non-woven fabrics of being exported by drying room exit slot and nonwoven surface layer are compound on cooling pressure roller, obtain compound nonwoven cloth; Compound nonwoven cloth obtains described automotive trim non-woven fabric composite material after exporting rear cutting, rolling by conveying roller.
2. the processing technology of non-woven fabric composite material for automotive trim as claimed in claim 1, is characterized in that: the particle diameter of described polyethylene particle is 40 orders.
3. the processing technology of non-woven fabric composite material for automotive trim as claimed in claim 1, is characterized in that: the grammes per square metre of described bottom layer of non-woven fabrics is 700～1000g/ ㎡.
4. the processing technology of non-woven fabric composite material for automotive trim as claimed in claim 1, is characterized in that: the grammes per square metre of described nonwoven surface layer is 200～320g/ ㎡.
5. the processing technology of non-woven fabric composite material for automotive trim as claimed in claim 1, is characterized in that: it is 400 ± 50 pins/cm that described nonwoven surface layer forms density through napping
2, be highly the short flannel of 5mm ± 1.
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| CN105082695A (en) * | 2015-07-29 | 2015-11-25 | 昆山九子莲汽车隔音材料有限公司 | Making method of automobile sound-absorption carpet |
| CN105128501A (en) * | 2015-10-28 | 2015-12-09 | 昆山九子莲汽车隔音材料有限公司 | Powder scattering technology for automobile carpet |
| CN105365310A (en) * | 2015-12-21 | 2016-03-02 | 德阳永盛无纺制品有限公司 | Automotive PE rubber powder composite non-woven fabric material and preparation method thereof |
| CN106120363A (en) * | 2016-08-31 | 2016-11-16 | 苏州长晟无纺科技有限公司 | Automotive trim film non-woven fabrics |
| CN106400517A (en) * | 2016-08-31 | 2017-02-15 | 苏州长晟无纺科技有限公司 | Flame-retardant laminated non-woven fabric for automotive interior trim |
| CN107399263A (en) * | 2017-08-28 | 2017-11-28 | 广州林骏汽车内饰件有限公司 | A kind of sound-absorbing carpet backing and installation system and its process equipment |
| CN108481886A (en) * | 2018-03-21 | 2018-09-04 | 上海金智达复合材料有限公司 | A kind of production method and product of dusting composite material |
| CN110799687A (en) * | 2017-06-29 | 2020-02-14 | 3M创新有限公司 | Nonwoven articles and methods of making the same |
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| CN114307394A (en) * | 2022-01-04 | 2022-04-12 | 厦门厦迪亚斯环保过滤技术有限公司 | Composite filter medium and preparation method thereof |
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| CN106400517A (en) * | 2016-08-31 | 2017-02-15 | 苏州长晟无纺科技有限公司 | Flame-retardant laminated non-woven fabric for automotive interior trim |
| CN110799687B (en) * | 2017-06-29 | 2022-04-08 | 3M创新有限公司 | Nonwoven articles and methods of making the same |
| CN110799687A (en) * | 2017-06-29 | 2020-02-14 | 3M创新有限公司 | Nonwoven articles and methods of making the same |
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| CN108481886A (en) * | 2018-03-21 | 2018-09-04 | 上海金智达复合材料有限公司 | A kind of production method and product of dusting composite material |
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Application publication date: 20140319 |