CN107584853A - A kind of preparation method of sound-absorbing cotton - Google Patents
A kind of preparation method of sound-absorbing cotton Download PDFInfo
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- CN107584853A CN107584853A CN201710648432.7A CN201710648432A CN107584853A CN 107584853 A CN107584853 A CN 107584853A CN 201710648432 A CN201710648432 A CN 201710648432A CN 107584853 A CN107584853 A CN 107584853A
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- sound
- absorbing
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- main body
- acoustical cotton
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Abstract
The invention discloses a kind of preparation method of sound-absorbing cotton,The acoustical cotton main body includes square groove,Circular through hole,Trapezoidal groove,Two-sided edge sealing,Sound-absorbing middle level,Sound-absorbing outer layer,Sound-absorbing internal layer,Sound-absorbing through hole and sound-absorbing reticulated cell,The bottom side to the right of the acoustical cotton main body offers square groove,The center upper portion position of the acoustical cotton main body offers trapezoidal groove,Circular through hole is provided with the middle part of the acoustical cotton main body,The acoustical cotton body interior structure central design is sound-absorbing internal layer,The both ends of the sound-absorbing internal layer are enclosed with sound-absorbing middle level,The both ends in the sound-absorbing middle level are enclosed with sound-absorbing outer layer,Rational raw material selection in sound-absorbing cotton of the present invention,Rational raw material ratio,Obtained sound-absorbing cotton light weight,Sound-absorbing effect and performance are good,Can be ornamental strong,Blunt knife dislocation is easy to process,Improve the operating efficiency of processing,Use green material,Reduce pollution,Improve environmental-protection function,It is easy to the recycling of acoustical cotton.
Description
Technical field
The present invention relates to sound-absorbing material technical field, and in particular to a kind of preparation method of sound-absorbing cotton.
Background technology
As the progress of society and people's level of consumption improve constantly, client is for automobile acoustical absorption sound insulation, lightweight, comfortable
Degree etc. also requires more and more higher.Traditional PET (polyethylene terephthalate)/PP (polypropylene) two-component acoustical cotton
It is widely applied in auto sound, noise reduction field, is greatly improved vehicle NVH performances.However, PET polyester fibers are
Chemical synthetic fiber fusing point height (more than 250 DEG C), degraded are difficult so that traditional PET/PP two-components sound-absorbing cotton products sealing edge die
Temperature is high.Meanwhile the recovery of PET/PP two-component acoustical cottons leftover bits is difficult.
Existing automobile using noise elimination felt cotton, there is noise reduction, fire prevention, shockproof, heat-insulated etc., but erasure effect does not still reach
Expected effect, shockproof and effect of heat insulation is nor very well, hardness is inadequate, therefore directly affects the service life of product, now
Some car ambient radiations are larger, it is easy to which human body is damaged.
The content of the invention
To solve the above problems, the present invention proposes a kind of preparation method of sound-absorbing cotton.
To realize the object of the invention, the technical scheme of use is：A kind of preparation method of sound-absorbing cotton, the acoustical cotton
The preparation method of main body is as follows：
The first step：Poly-lactic acid ester plastics are put into spraying fusing machine and heated and spinneret, prepare a diameter of 2~5um's
Poly-lactic acid ester plastic optical fibre, poly-lactic acid ester plastic optical fibre is built as the irregular template knot of the cellular containing sound-absorbing reticulated cell
Structure, the compressing sound-absorbing internal layer for platy structure of the irregular plate profile structure of cellular beats sound-absorbing internal layer using puncher
Go out sound-absorbing through hole；
Second step：The wood shavings wood chip of lightweight is put into mould, the soft suction with micropore list structure is made in micro- force
Sound middle level, the sound-absorbing middle level of strip is bonded on two end faces of sound-absorbing internal layer using adhesive；
3rd step：It is bonded with the polypropylene plastics cloth of sound-absorbing outer layer respectively in the upper surface in sound-absorbing middle level and lower surface, makes
Enter line misregistration edge sealing with thick the 1mm folded on envelope cutting die steel plate or copper coin blunt knife；
4th step：After cutting knife height is set, the acoustical cotton main body after edge sealing is subjected to 180 ° of dislocation using cutting knife
Cutting knife PROCESS FOR TREATMENT, obtain complete acoustical cotton.
Preferably, the acoustical cotton main body is included in square groove, circular through hole, trapezoidal groove, two-sided edge sealing, sound-absorbing
Layer, sound-absorbing outer layer, sound-absorbing internal layer, sound-absorbing through hole and sound-absorbing reticulated cell, the bottom side side of offering to the right of the acoustical cotton main body
Connected in star, the center upper portion position of the acoustical cotton main body offer trapezoidal groove, circle are provided with the middle part of the acoustical cotton main body
Shape through hole, the acoustical cotton body interior structure central design are sound-absorbing internal layer, and the both ends of the sound-absorbing internal layer are enclosed with suction
Sound middle level, the both ends in the sound-absorbing middle level are enclosed with sound-absorbing outer layer；The arranged stacked of the acoustical cotton main body is designed as outside sound-absorbing
Layer, sound-absorbing middle level, the stacking successively from top to bottom of middle sound-absorbing internal layer sound-absorbing middle level and sound-absorbing outer layer.
Preferably, the sound-absorbing outer layer is designed as polypropylene plastics layer of cloth, and the thickness of polypropylene plastics layer of cloth is designed as 0.5
~1.0mm；The sound-absorbing middle level is designed as wood shavings wood chip layer, and the thickness of wood shavings wood chip layer is designed as 2~3mm, wood shavings wood chip layer
Specially a kind of soft list structure with holes；The sound-absorbing internal layer is designed as poly-lactic acid ester plastic optical fibre layer, poly-lactic acid ester plastics
The thickness of fibrous layer is designed as 2~5mm, and the lamination of poly-lactic acid ester plastic optical fibre is made as platy structure.
Preferably, the sound-absorbing internal layer is internally provided with sound-absorbing through hole, and the diameter design of sound-absorbing through hole is 2~3mm, monolithic
Sound-absorbing internal layer in be provided with 5~10 sound-absorbing through holes.
Preferably, sound-absorbing reticulated cell, the diameter of sound-absorbing reticulated cell are provided between sound-absorbing through hole inside the sound-absorbing internal layer
2~10um is designed as, sound-absorbing reticulated cell is interconnected.
Preferably, the back side of the acoustical cotton main body is compounded with 2~3 double faced adhesive tapes.
Beneficial effects of the present invention are：Rational raw material selection, rational raw material are matched somebody with somebody in sound-absorbing cotton of the present invention
Than obtained sound-absorbing cotton light weight, sound-absorbing effect and performance are good, can be ornamental strong, easy to process, are misplaced using blunt knife
Two-sided edge sealing, add its aesthetic appearance of acoustical cotton by, improve the operating efficiency of processing, using green material, reduce pollution,
Environmental-protection function is improved, is easy to the recycling of acoustical cotton, market needs has been catered to, has optimized technological design and production.
Brief description of the drawings
Fig. 1 is sound-absorbing cotton structure schematic diagram of the present invention.
Fig. 2 is sound-absorbing cotton endothecium structure schematic diagram of the present invention.
In figure：1st, acoustical cotton main body；2nd, square groove；3rd, circular through hole；4th, trapezoidal groove；5th, two-sided edge sealing；6th, inhale
Sound middle level；7th, sound-absorbing outer layer；8th, sound-absorbing internal layer；9th, sound-absorbing through hole；10 sound-absorbing reticulated cells.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment 1
Refer to shown in Fig. 1-2, a kind of sound-absorbing cotton, the acoustical cotton main body 1 includes square groove 2, circle runs through
Hole 3, trapezoidal groove 4, two-sided edge sealing 5, sound-absorbing middle level 6, sound-absorbing outer layer 7, sound-absorbing internal layer 8, sound-absorbing through hole 9 and sound-absorbing reticulated cell
10, the bottom side to the right of the acoustical cotton main body 1 offers square groove 2, and the center upper portion position of the acoustical cotton main body 1 is opened
Provided with trapezoidal groove 4, the middle part of the acoustical cotton main body 1 is provided with circular through hole 3, in the internal structure of acoustical cotton main body 1
Centre is designed as sound-absorbing internal layer 8, and the both ends of the sound-absorbing internal layer 8 are enclosed with sound-absorbing middle level 6, the both ends parcel in the sound-absorbing middle level 6
There is sound-absorbing outer layer 7；The arranged stacked of the acoustical cotton main body 1 is designed as sound-absorbing outer layer 7, sound-absorbing middle level 6, middle sound-absorbing internal layer 8, suction
Sound middle level 6 and the stacking successively from top to bottom of sound-absorbing outer layer 7.
Further, the sound-absorbing outer layer 7 is designed as polypropylene plastics layer of cloth, and the thickness of polypropylene plastics layer of cloth is designed as
0.5~1.0mm；The sound-absorbing middle level 6 is designed as wood shavings wood chip layer, and the thickness of wood shavings wood chip layer is designed as 2~3mm, wood shavings wood
It is specially a kind of soft list structure with holes to consider layer to be worth doing；The sound-absorbing internal layer 8 is designed as poly-lactic acid ester plastic optical fibre layer, poly-lactic acid ester
The thickness of plastic optical fibre layer is designed as 2~5mm, and the lamination of poly-lactic acid ester plastic optical fibre is made as platy structure.
Further, the sound-absorbing internal layer 8 is internally provided with sound-absorbing through hole 9, the diameter design of sound-absorbing through hole 9 for 2~
3mm, 5~10 sound-absorbing through holes 9 are provided with the sound-absorbing internal layer 8 of monolithic.
Further, sound-absorbing reticulated cell 10, sound-absorbing reticulated cell are provided between the inside sound-absorbing through hole 9 of sound-absorbing internal layer 8
10 diameter design is 2~10um, and sound-absorbing reticulated cell 10 is interconnected.
Further, the sandwich layer is internally provided with tree-shaped even hole, and the diameter design in tree-shaped even hole is 2~10um, tree-shaped
Even hole is interconnected.
Further, the back side of the acoustical cotton main body 1 is compounded with 2~3 double faced adhesive tapes.
The present invention provides a kind of technical scheme：A kind of preparation method of sound-absorbing cotton, the preparation of the acoustical cotton main body 1
Method is as follows：
The first step：Poly-lactic acid ester plastics are put into spraying fusing machine and heated and spinneret, prepare a diameter of 2~5um's
Poly-lactic acid ester plastic optical fibre, poly-lactic acid ester plastic optical fibre is built as the irregular template knot of the cellular containing sound-absorbing reticulated cell 10
Structure, by the compressing sound-absorbing internal layer 8 for platy structure of the irregular plate profile structure of cellular, sound-absorbing internal layer 8 is used into puncher
Get sound-absorbing through hole 9；
Second step：The wood shavings wood chip of lightweight is put into mould, the soft suction with micropore list structure is made in micro- force
Sound middle level 6, the sound-absorbing middle level 6 of strip is bonded on two end faces of sound-absorbing internal layer 8 using adhesive；
3rd step：It is bonded with the polypropylene plastics cloth of sound-absorbing outer layer 7 respectively in the upper surface in sound-absorbing middle level 6 and lower surface,
Enter line misregistration edge sealing using thick the 1mm folded on envelope cutting die steel plate or copper coin blunt knife；
4th step：After cutting knife height is set, the acoustical cotton main body 1 after edge sealing is subjected to 180 ° of dislocation using cutting knife
Cutting knife PROCESS FOR TREATMENT, obtain complete acoustical cotton.
Embodiment 2
A kind of sound-absorbing cotton, the present embodiment and the difference of embodiment 1 are that sound-absorbing middle level 6 uses algae fiber
Uniformly lay compressing be made.
Algae obtains the algae fiber of white, algae fiber and wood shavings wood chip by draining and drying
With same excellent sound absorption function.
Embodiment 3
A kind of sound-absorbing cotton, the present embodiment and the difference of embodiment 1 are that sound-absorbing internal layer 8 is moulded using silicon rubber foam
Material material is made.
Silicon rubber plastics high-temperature digestion is to be cooled down rapidly after liquid is passed through inert gas, and bubble structure is contained in inside, obtains
Silicon rubber foam plastics, silicon rubber foam plastics have same excellent sound absorption function with polylactate fibers.
Embodiment 4
A kind of sound-absorbing cotton, the present embodiment and the difference of embodiment 1 are that sound-absorbing internal layer 8 uses polylactate fibers
It is mixed to prepare with polycarbonate.
Polylactate fibers and polycarbonate have same excellent sound-absorbing with polycarbonate or string
Function.
Embodiment 5
A kind of sound-absorbing cotton, the present embodiment and the difference of embodiment 1 are that sound-absorbing middle level 6 uses mine asbestos fibre
Uniformly lay compressing be made.
Stone ore is melted and then sprayed by high temperature spraying fusing machine, obtains the mine asbestos fibre of white, mine is cotton fiber
Performance with fire-proof high-temperature resistant, mine asbestos fibre layer have same excellent sound absorption function with wood shavings wood chip layer.
Embodiment 6
A kind of sound-absorbing cotton, the present embodiment and the difference of embodiment 1 are that sound-absorbing middle level 6 uses a diameter of 2~5um
Soft silica gel fiber uniformly lay it is compressing be made.
Soft silica gel is melted and then sprayed by high temperature spraying fusing machine, the soft silica gel for obtaining a diameter of 2~5um of white is fine
Dimension, a diameter of 2~5um soft silica gel fibrous layer and wood shavings wood chip layer have same excellent sound absorption function.
In the present invention, rational raw material selection, rational raw material ratio are obtained in sound-absorbing cotton of the present invention
Sound-absorbing cotton light weight, sound-absorbing effect and performance are good, can be ornamental strong, easy to process, using the dislocated double-sided edge sealing of blunt knife,
Its aesthetic appearance of acoustical cotton is added by improving the operating efficiency of processing, using green material, reduce pollution, improve ring
Guarantor acts on, and is easy to the recycling of acoustical cotton, has catered to market needs, optimized technological design and production.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
- A kind of 1. preparation method of sound-absorbing cotton, it is characterised in that：The preparation method of the acoustical cotton main body (1) is as follows：The first step：Poly-lactic acid ester plastics are put into spraying fusing machine and heated and spinneret, prepare a diameter of 2~5um poly- breast Acid esters plastic optical fibre, poly-lactic acid ester plastic optical fibre is built as the irregular template knot of the cellular containing sound-absorbing reticulated cell (10) Structure, by the compressing sound-absorbing internal layer (8) for platy structure of the irregular plate profile structure of cellular, sound-absorbing internal layer (8) is used and beaten Hole machine gets sound-absorbing through hole (9)；Second step：The wood shavings wood chip of lightweight is put into mould, micro- force is made in the soft sound-absorbing with micropore list structure The sound-absorbing middle level (6) of strip, is bonded on two end faces of sound-absorbing internal layer (8) by layer (6) using adhesive；3rd step：The polypropylene plastics cloth of sound-absorbing outer layer (7) is bonded with respectively in the upper surface of sound-absorbing middle level (6) and lower surface, Enter line misregistration edge sealing using thick the 1mm folded on envelope cutting die steel plate or copper coin blunt knife；4th step：After cutting knife height is set, the acoustical cotton main body (1) after edge sealing is subjected to 180 ° of dislocation using cutting knife and cut Knife PROCESS FOR TREATMENT, obtain complete acoustical cotton.
- A kind of 2. preparation method of sound-absorbing cotton according to claim 1, it is characterised in that：The acoustical cotton main body (1) square groove (2), circular through hole (3), trapezoidal groove (4), two-sided edge sealing (5), sound-absorbing middle level (6), sound-absorbing outer layer are included (7), sound-absorbing internal layer (8), sound-absorbing through hole (9) and sound-absorbing reticulated cell (10), the bottom side to the right of the acoustical cotton main body (1) open up There is square groove (2), the center upper portion position of the acoustical cotton main body (1) offers trapezoidal groove (4), the acoustical cotton main body (1) middle part is provided with circular through hole (3), and acoustical cotton main body (1) the internal structure central design is sound-absorbing internal layer (8), institute The both ends for stating sound-absorbing internal layer (8) are enclosed with sound-absorbing middle level (6), and the both ends of the sound-absorbing middle level (6) are enclosed with sound-absorbing outer layer (7)； The arranged stacked of the acoustical cotton main body (1) is designed as in sound-absorbing outer layer (7), sound-absorbing middle level (6), middle sound-absorbing internal layer (8) sound-absorbing The stacking successively from top to bottom of layer (6) and sound-absorbing outer layer (7).
- A kind of 3. preparation method of sound-absorbing cotton according to claim 1, it is characterised in that：The sound-absorbing outer layer (7) Polypropylene plastics layer of cloth is designed as, the thickness of polypropylene plastics layer of cloth is designed as 0.5~1.0mm；Sound-absorbing middle level (6) design For wood shavings wood chip layer, the thickness of wood shavings wood chip layer is designed as 2~3mm, and wood shavings wood chip layer is specially a kind of soft strip knot with holes Structure；The sound-absorbing internal layer (8) is designed as poly-lactic acid ester plastic optical fibre layer, and the thickness of poly-lactic acid ester plastic optical fibre layer is designed as 2~ 5mm, the lamination of poly-lactic acid ester plastic optical fibre are made as platy structure.
- A kind of 4. preparation method of sound-absorbing cotton according to claim 1, it is characterised in that：The sound-absorbing internal layer (8) Sound-absorbing through hole (9) is internally provided with, the diameter design of sound-absorbing through hole (9) is 2~3mm, is provided with the sound-absorbing internal layer (8) of monolithic 5~10 sound-absorbing through holes (9).
- A kind of 5. preparation method of sound-absorbing cotton according to claim 1, it is characterised in that：The sound-absorbing internal layer (8) Sound-absorbing reticulated cell (10) is provided between internal sound-absorbing through hole (9), the diameter design of sound-absorbing reticulated cell (10) is 2~10um, is inhaled Sound reticulated cell (10) is interconnected.
- A kind of 6. preparation method of sound-absorbing cotton according to claim 1, it is characterised in that：The acoustical cotton main body (1) the back side is compounded with 2~3 double faced adhesive tapes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648432.7A CN107584853B (en) | 2017-08-01 | 2017-08-01 | Preparation method of sound-absorbing cotton |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648432.7A CN107584853B (en) | 2017-08-01 | 2017-08-01 | Preparation method of sound-absorbing cotton |
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| CN107584853A true CN107584853A (en) | 2018-01-16 |
| CN107584853B CN107584853B (en) | 2020-02-04 |
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| CN106218170A (en) * | 2016-07-26 | 2016-12-14 | 广西德福特科技有限公司 | A kind of automobile-used double-component acoustical cotton and preparation method thereof |
| CN205800987U (en) * | 2016-07-20 | 2016-12-14 | 亿得宝科技发展有限公司 | A kind of automobile-used complex sound insulation is cotton |
| CN206344516U (en) * | 2016-11-27 | 2017-07-21 | 江苏三弦建筑声学系统有限公司 | A kind of novel sound insulating sheet material |
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2017
- 2017-08-01 CN CN201710648432.7A patent/CN107584853B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120088424A1 (en) * | 2009-03-31 | 2012-04-12 | Eric Moore M | Dimensionally stable nonwoven fibrous webs and methods of making and using the same |
| CN104120962A (en) * | 2014-08-15 | 2014-10-29 | 无锡联创薄板有限公司 | Thin plate for sliding door |
| CN204124079U (en) * | 2014-09-26 | 2015-01-28 | 侯俊书 | Sound-proof material |
| CN204826275U (en) * | 2015-07-17 | 2015-12-02 | 浙江舒福家门业有限公司 | Sound insulation board |
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| CN205256224U (en) * | 2015-11-04 | 2016-05-25 | 浙江乾丰汽车零部件有限公司 | It is thermal -insulated cotton that sound is inhaled to car |
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