CN102174728A - Felt sheet and production process thereof - Google Patents
Felt sheet and production process thereof Download PDFInfo
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- CN102174728A CN102174728A CN 201110052383 CN201110052383A CN102174728A CN 102174728 A CN102174728 A CN 102174728A CN 201110052383 CN201110052383 CN 201110052383 CN 201110052383 A CN201110052383 A CN 201110052383A CN 102174728 A CN102174728 A CN 102174728A
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- sheet material
- felt sheet
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- foam beads
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- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention discloses a felt sheet, which comprises the following components in percentage by weight: 30 to 60 percent of cotton fiber, 10 to 30 percent of polyester fiber, 20 to 30 percent of low-melting-point fiber and 0.001 to 20 percent of foam particles. The invention also discloses a felt sheet, which comprises the following components in percentage by weight: 30 to 60 percent of cotton fiber, 10 to 30 percent of polyester fiber, 20 to 30 percent of low-melting-point fiber and 0.001 to 30 percent of glass fiber. In the process, the foam particles are added, have the capability of converting sound waves into heat energy due to the porous structures of the foam particles, are extremely good acoustic impedance materials and greatly contribute to sound absorption performance. The added glass fiber is a material with extremely high tensile strength, and can obviously improve the mechanical property of a fibrofelt after being introduced into the fibrofelt, so that the performance of a part made of the glass fiber is improved. The invention also discloses a production process of the felt sheet.
Description
Technical field
The present invention relates to auto sound heat insulation sheet technical field, particularly a kind of felt sheet material and production technology thereof.
Background technology
Acoustic material is used for the noise of various needs decay from the external source environment.At present, acoustic material has been used for various fields, for example be used for utensil and be dealt into the sound of house peripheral region, be used for automobile reducing the mechanical sounds and the road rumble of engine, and be used for the sound that office building is produced by telephone talk or office equipment running with decay with reduction.
In the heat-insulating sound-insulating part of automobile, generally be by cotton fiber, polyester fiber, low-melting fiber is by air lay, and modes such as carding manufacture the fibrofelt sheet material, and reshaping is various auto parts.The soundproof effect of the fibrofelt sheet material that orthodox car heat-insulating sound-insulating part is used is as follows.
The sound-absorbing amount correspondence table of table 1 corresponding frequencies noise
Can draw by last table, traditional fibrofelt is because its composition material kind is limited, and it is not enough to have determined its sound insulation value to exist.
Summary of the invention
In view of this, the invention provides a kind of felt sheet material and production technology thereof, to improve its sound insulation capabilities.
For achieving the above object, the invention provides following technical scheme:
A kind of felt sheet material, its component comprises in weight portion:
Preferably, in above-mentioned felt sheet material, the content of described foam beads is 0.10%～20%.
Preferably, in above-mentioned felt sheet material, described foam beads is one or more the combination in polyurethane foam, polyethylene and the polystyrene foam.
Preferably, in above-mentioned felt sheet material, the density of described foam beads is 10kg/m
3-100kg/m
3
Preferably, in above-mentioned felt sheet material, the diameter of described foam beads is 1mm-10mm.
Preferably, in above-mentioned felt sheet material, also comprise 0.001%～15% glass fibre, the content of described foam beads is 0.001%～15%.
Preferably, in above-mentioned felt sheet material, described glass fiber diameter is the 5-20 micron.
A kind of felt sheet material, its component comprises in weight portion:
Preferably, in above-mentioned felt sheet material, described glass fiber diameter is the 5-20 micron.
A kind of production technology of aforesaid felt sheet material is characterized in that, comprises step:
Cotton fiber, polyester fiber, low-melting fiber, glass fibre and foam beads are weighed;
Above-mentioned raw materials is carried out shredding and mixing;
Mixed raw material is carried out to net, impregnation, dehydration and roll-in step makes sheet material.
From above-mentioned technical scheme as can be seen, the foam beads that adds in a kind of felt sheet material provided by the invention is because the loose structure of himself, having the ability that the vibrational energy of sound wave is converted to heat energy, is extraordinary acoustic impedance material, and sound absorption qualities is had very big contribution.Above-mentioned sheet material is applied in the automotive engine compartment, can further improves its soundproof effect.The glass fibre itself that another kind of felt sheet material provided by the invention adds is the extraordinary material of a kind of TENSILE STRENGTH, can significantly promote the mechanical property of fibrofelt after introducing in fibrofelt, thereby improves the performance by its part of making.The production technology of felt sheet material provided by the invention has comprised the control of foam beads and glass fibre addition, and the even dispersion in fibrofelt of foam beads and glass fibre has guaranteed foam beads and the glass fibre good combination in fibrofelt.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the felt sheet material that Fig. 1 provides for the embodiment of the invention.
The specific embodiment
The invention provides a kind of felt sheet material and production technology thereof, to improve its sound insulation capabilities and mechanical property.
Felt sheet material provided by the invention, its component comprises in weight portion:
The present invention is by adding foam beads in the raw material (cotton fiber, polyester fiber and low-melting fiber) of forming the felt sheet material, because the loose structure of foam beads self, having the ability that sound wave is converted to heat energy, is extraordinary acoustic impedance material, and sound absorption qualities is had very big contribution.Above-mentioned sheet material is applied in the automotive engine compartment, can further improves its soundproof effect.
Below in conjunction with specific embodiment felt sheet material provided by the present invention and production technology thereof are described in further detail.
Embodiment 1
Earlier by following each raw material that takes by weighing:
Above-mentioned raw materials is carried out shredding and mixing, then mixed raw material is carried out to net, impregnation, dehydration and roll-in step and makes sheet material.See also the test data that following table provides.
The sound-absorbing amount correspondence table of the corresponding frequencies noise that table 2 embodiment 1 provides
Can draw by the contrast of last table and table 1,,, make the uptake of each frequency noise that corresponding raising all be arranged by the distinctive sound absorption of foam beads by adding 0.001 kilogram foam beads.
Embodiment 2
Earlier by following each raw material that takes by weighing:
Above-mentioned raw materials is carried out shredding and mixing, then mixed raw material is carried out to net, impregnation, dehydration and roll-in step and makes sheet material.See also the test data that following table provides.
The sound-absorbing amount correspondence table of the corresponding frequencies noise that table 3 embodiment 2 provides
Can draw by last table and table 1 contrast, by adding 5 kilograms foam beads, by the distinctive sound absorption of foam beads, make the uptake of noise of each frequency all be significantly improved, and the increase by foam beads content, it is compared with the data that table 2 provides, and the sound-absorbing amount also is greatly improved.
Embodiment 3
Earlier by following each raw material that takes by weighing:
Above-mentioned raw materials is carried out shredding and mixing, then mixed raw material is carried out to net, impregnation, dehydration and roll-in step and makes sheet material.See also the test data that following table provides.
The sound-absorbing amount correspondence table of the corresponding frequencies noise that table 4 embodiment 3 provides
Can draw by last table and table 1 contrast, by adding 15 kilograms foam beads, by the distinctive sound absorption of foam beads, make the uptake of noise of each frequency all be significantly improved, and the increase by foam beads content, it is compared with the data that table 3 provides, and the sound-absorbing amount also is greatly improved.
Embodiment 4
Earlier by following each raw material that takes by weighing:
Above-mentioned raw materials is carried out shredding and mixing, then mixed raw material is carried out to net, impregnation, dehydration and roll-in step and makes sheet material.See also the test data that following table provides.
The sound-absorbing amount correspondence table of the corresponding frequencies noise that table 5 embodiment 4 provides
Can draw by last table and table 1 contrast, by adding 20 kilograms foam beads, by the distinctive sound absorption of foam beads, make the sound-absorbing amount of noise of each frequency all be significantly improved, and the increase by foam beads content, it is compared with the data that table 4 provides, and the sound-absorbing amount has reduction slightly.By above-mentioned several groups of test datas contrast as can be known, the content of foam beads is that its sound-absorbing effect is best between 0.10%～20% the weight portion.
Above-mentioned foam beads can be one or more the combination in polyurethane foam, polyethylene and the polystyrene foam.The density of foam beads can be chosen in 10kg/m
3-100kg/m
3Between.The diameter of foam beads can be chosen between the 1mm-10mm.
The invention also discloses a kind of felt sheet material, its component comprises in weight portion:
The present invention is by adding glass fibre in the fibrofelt sheet material of being made of cotton fiber, polyester fiber and low-melting fiber, the glass fibre itself that adds is the extraordinary material of a kind of TENSILE STRENGTH, can significantly promote the mechanical property of fibrofelt after in fibrofelt, introducing, thereby improve performance by its part of making.Wherein, glass fiber diameter may be selected to be between the 5-20 micron.
The invention also discloses a kind of felt sheet material, its component comprises in weight portion:
As shown in Figure 1, the structural representation of the felt sheet material that provides for the embodiment of the invention of Fig. 1.
Wherein 1 is glass fibre, and 2 are general fibre (system refers to cotton fiber, polyester fiber and low-melting fiber), and 3 is foam beads.
The present invention is by adding glass fibre 1 and foam beads 3 in the fibrofelt sheet material of being made of cotton fiber, polyester fiber and low-melting fiber, the glass fibre 1 that adds itself is the extraordinary material of a kind of TENSILE STRENGTH, can significantly promote the mechanical property of fibrofelt after in fibrofelt, introducing, thereby improve performance by its part of making.The foam beads 3 that the present invention adds because the loose structure of foam beads 3 self has the ability that the vibrational energy of sound wave is converted to heat energy, is extraordinary acoustic impedance material, and sound absorption qualities is had very big contribution.Above-mentioned sheet material is applied in the automotive engine compartment, can further improves its soundproof effect.
The production technology of felt sheet material provided by the invention comprises step:
With the weighing bale opener cotton fiber, polyester fiber, low-melting fiber, glass fibre and foam beads are weighed, the ratio of weighing is carried out according to the part by weight of disclosed each raw material of above-mentioned felt sheet material.
With shredding equipment above-mentioned raw materials is carried out shredding and mixing, the various fiber openings in the raw material are become flower-shaped fiber.
Mixed raw material is carried out to net, impregnation, dehydration and roll-in step makes sheet material.By become flower-shaped fibre transportation that the net step becomes shredding to the random web-laying equipment of the corresponding auxiliary work of fiber carding machine in formation one or more dried guipure.By the impregnation step the dried guipure process and the gumming device continuous impregnating resin adhesive liquid of the corresponding auxiliary work of random web-laying equipment are become one or more wet guipure.Be rolled into platy structure by the roll-in step.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a felt sheet material is characterized in that, its component comprises in weight portion:
2. felt sheet material as claimed in claim 1 is characterized in that, the content of described foam beads is 0.10%～20%.
3. felt sheet material as claimed in claim 1 is characterized in that, described foam beads is one or more the combination in polyurethane foam, polyethylene and the polystyrene foam.
4. felt sheet material as claimed in claim 1 is characterized in that, the density of described foam beads is 10kg/m
3～100kg/m
3
5. felt sheet material as claimed in claim 1 is characterized in that, the diameter of described foam beads is 1mm～10mm.
6. as any described felt sheet material of claim 1-5, it is characterized in that also comprise 0.001%～15% glass fibre, the content of described foam beads is 0.001%～15%.
7. felt sheet material as claimed in claim 6 is characterized in that, described glass fiber diameter is 5～20 microns.
8. a felt sheet material is characterized in that, its component comprises in weight portion:
9. felt sheet material as claimed in claim 8 is characterized in that, described glass fiber diameter is 5～20 microns.
10. the production technology of a felt sheet material as claimed in claim 6 is characterized in that, comprises step:
Cotton fiber, polyester fiber, low-melting fiber, glass fibre and foam beads are weighed;
Above-mentioned raw materials is carried out shredding and mixing;
Mixed raw material is carried out to net, impregnation, dehydration and roll-in step makes sheet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100523833A CN102174728B (en) | 2011-03-04 | 2011-03-04 | Felt sheet and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100523833A CN102174728B (en) | 2011-03-04 | 2011-03-04 | Felt sheet and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102174728A true CN102174728A (en) | 2011-09-07 |
| CN102174728B CN102174728B (en) | 2012-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100523833A Active CN102174728B (en) | 2011-03-04 | 2011-03-04 | Felt sheet and production process thereof |
Country Status (1)
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| CN (1) | CN102174728B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130277146A1 (en) * | 2012-04-24 | 2013-10-24 | Hyundai Motor Company | Convergence sound-absorbing material and method of fabricating the same |
| CN103726226A (en) * | 2013-12-10 | 2014-04-16 | 吴江市品信纺织科技有限公司 | Thickened non-woven fabric |
| CN105063890A (en) * | 2015-07-27 | 2015-11-18 | 无锡吉兴汽车声学部件科技有限公司 | Production method of pad cotton of cover plate of automobile spare tire |
| CN107419435A (en) * | 2017-08-22 | 2017-12-01 | 重庆佩尔哲汽车内饰系统有限公司 | A kind of blanket and preparation method thereof |
| CN108312983A (en) * | 2018-02-12 | 2018-07-24 | 上海东杰高分子材料有限公司 | A kind of composite sound-absorbing material and its preparation process |
| CN113529268A (en) * | 2020-04-22 | 2021-10-22 | 合肥佩尔哲汽车内饰系统有限公司 | Production method of novel sound insulation felt sheet |
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| DE10222458A1 (en) * | 2002-05-22 | 2003-12-11 | Fagerdala Deutschland Gmbh | Component made of foamed particles for sound absorption involves irregular shaped particles to produce high pore volume |
| WO2007090479A1 (en) * | 2006-02-03 | 2007-08-16 | Carcoustics Techconsult Gmbh | Method of producing sound-absorbing mouldings having regions of different densities |
| CN201291820Y (en) * | 2008-10-06 | 2009-08-19 | 上海东杰高分子材料有限公司 | Baffle blanket capable of thermal forming |
| CN201317331Y (en) * | 2008-10-06 | 2009-09-30 | 上海东杰高分子材料有限公司 | Sound-absorbing material |
| CN101716902A (en) * | 2009-12-07 | 2010-06-02 | 怡星(无锡)汽车内饰件有限公司 | Waste-cotton composite automotive carpet |
-
2011
- 2011-03-04 CN CN2011100523833A patent/CN102174728B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10222458A1 (en) * | 2002-05-22 | 2003-12-11 | Fagerdala Deutschland Gmbh | Component made of foamed particles for sound absorption involves irregular shaped particles to produce high pore volume |
| WO2007090479A1 (en) * | 2006-02-03 | 2007-08-16 | Carcoustics Techconsult Gmbh | Method of producing sound-absorbing mouldings having regions of different densities |
| CN201291820Y (en) * | 2008-10-06 | 2009-08-19 | 上海东杰高分子材料有限公司 | Baffle blanket capable of thermal forming |
| CN201317331Y (en) * | 2008-10-06 | 2009-09-30 | 上海东杰高分子材料有限公司 | Sound-absorbing material |
| CN101716902A (en) * | 2009-12-07 | 2010-06-02 | 怡星(无锡)汽车内饰件有限公司 | Waste-cotton composite automotive carpet |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130277146A1 (en) * | 2012-04-24 | 2013-10-24 | Hyundai Motor Company | Convergence sound-absorbing material and method of fabricating the same |
| CN103726226A (en) * | 2013-12-10 | 2014-04-16 | 吴江市品信纺织科技有限公司 | Thickened non-woven fabric |
| CN105063890A (en) * | 2015-07-27 | 2015-11-18 | 无锡吉兴汽车声学部件科技有限公司 | Production method of pad cotton of cover plate of automobile spare tire |
| CN107419435A (en) * | 2017-08-22 | 2017-12-01 | 重庆佩尔哲汽车内饰系统有限公司 | A kind of blanket and preparation method thereof |
| CN108312983A (en) * | 2018-02-12 | 2018-07-24 | 上海东杰高分子材料有限公司 | A kind of composite sound-absorbing material and its preparation process |
| CN113529268A (en) * | 2020-04-22 | 2021-10-22 | 合肥佩尔哲汽车内饰系统有限公司 | Production method of novel sound insulation felt sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102174728B (en) | 2012-07-11 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110907 Assignee: Pelzer Automotive Interior Systems (Taicang) Co.,Ltd. Assignor: Chongqing HP Pelzer Automotive Interior Systems Co., Ltd. Contract record no.: 2015320010064 Denomination of invention: Felt sheet and production process thereof Granted publication date: 20120711 License type: Exclusive License Record date: 20150515 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |