WO2013044822A1 - 一种应用到汽车内饰件中的无纺布 - Google Patents

一种应用到汽车内饰件中的无纺布 Download PDF

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Publication number
WO2013044822A1
WO2013044822A1 PCT/CN2012/082152 CN2012082152W WO2013044822A1 WO 2013044822 A1 WO2013044822 A1 WO 2013044822A1 CN 2012082152 W CN2012082152 W CN 2012082152W WO 2013044822 A1 WO2013044822 A1 WO 2013044822A1
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Prior art keywords
holes
woven fabric
automotive interior
nonwoven fabric
interior part
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PCT/CN2012/082152
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English (en)
French (fr)
Inventor
刘国忠
方庆霁
姚建刚
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江苏紫荆花纺织科技股份有限公司
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Publication of WO2013044822A1 publication Critical patent/WO2013044822A1/zh

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation

Definitions

  • the present invention relates to a nonwoven fabric, and in particular to a nonwoven fabric applied to an automotive interior trim.
  • Chinese patent document CN201484319U discloses a car roof trim panel, which comprises, in order from top to bottom, a fabric layer, a composite layer and a bottom layer, the upper and lower sides of the composite layer. Adhesive film and adhesive film are respectively adhered, the fabric layer is bonded to the adhesive film of the composite layer, and the bottom layer is bonded to the adhesive film of the composite layer, wherein the adhesive film is polyethylene
  • the composite layer is made of hemp fiber non-woven fabric.
  • Chinese patent document CN201863779U discloses a soundproof and heat-insulating fireproof panel for a car roof, and the soundproofing and fireproof fireproof panel for the automobile roof is an upper surface layer, a polyethylene foam layer and a lower layer from top to bottom.
  • the polyethylene foam layer has a porous structure.
  • the automobile roof insulation and fireproof panel disclosed in the document although formed by the polyethylene foam in the intermediate layer, can partially achieve the effect of ventilation, but is affected by the foaming process, and the foaming is uneven.
  • the ventilation effect is not good; at the same time, the plate is not strong in strength due to the use of polyethylene foaming, although the strength can be improved by increasing the hemp fiber layer, but the gas permeability after the composite hemp fiber layer is deteriorated.
  • the technical problem to be solved by the present invention is to overcome the defects of the sound insulation and the poor gas permeability of the foam layer in the prior art, thereby providing a sound insulation effect and a good gas permeability. Woven cloth.
  • Another technical problem to be solved by the present invention is to provide an environment-friendly nonwoven fabric having better strength.
  • the present invention provides a non-woven fabric for use in an automotive interior trim, wherein the nonwoven fabric is formed with uniformly distributed through holes having a radius of 0.5-2 mm, adjacent The distance between the parallel tangents of the two through holes is 2-6 mm.
  • the through hole has a radius of lmm, and the distance between the parallel tangents of the adjacent two through holes is 4 mm.
  • the weight percentage of each component of the non-woven fabric is: hemp fiber accounts for 20-90%, polypropylene fiber and/or polylactic acid fiber accounts for 10-60%, and other fibers account for 0-30%. .
  • the hemp fiber accounts for 30-80%.
  • the hemp fiber accounts for 70%.
  • the nonwoven fabric has a basis weight of 50-300 g/m 2 .
  • the nonwoven fabric has a basis weight of 100 g/m 2 .
  • the through hole is formed by ultrasonic or laser, and the ultrasonic punching speed is not more than 5 m/min.
  • An automotive interior part comprising the nonwoven fabric according to any of the above.
  • the interior component is a car roof.
  • the nonwoven fabric provided by the present invention applied to automotive interior parts has the following advantages:
  • the non-woven fabric for use in an automotive interior part provided by the present invention, wherein the non-woven fabric is formed with uniformly distributed through holes, the through holes having a radius of 0.5-2 mm, adjacent to the two through holes
  • the distance between the parallel tangent lines is 2-6 mm.
  • a through hole is formed in the nonwoven fabric, and the through hole has better gas permeability. Therefore, the nonwoven fabric formed with the through hole has a good gas permeable effect.
  • the through hole has a radius of 0.5-2 mm
  • the parallel tangential distance of the adjacent two through holes is 2-6 mm
  • the through hole has a radius of 1 mm.
  • the distance between the parallel tangent lines of the adjacent two through holes is 4 mm.
  • the above selection of the radius of the through hole and the distance of the parallel tangent of the adjacent two through holes avoids the following drawbacks: First, the diameter of the through hole is large, but the phase of the adjacent two through holes The distance between the parallel tangents is very small, and the non-woven fabric is not easy to be combined with other sheets, especially when the needle-punching method is used, the compounding is very difficult; second, the diameter of the through-hole is small, and the adjacent two The distance between the parallel tangents of the through holes is large, which affects the gas permeability of the nonwoven fabric.
  • the nonwoven fabric for use in an automotive interior part provided by the present invention preferably, the weight percentage of each component of the nonwoven fabric is: hemp fiber accounts for 20-90%, polypropylene fiber and / or polylactic acid fiber accounts for 10-60%, other fibers account for 0-30%; further preferably, the hemp fibers account for 30-80%, and still more preferably, the hemp fibers account for 70%. Hemp fibers are relatively strong and have good gas permeability.
  • the nonwoven fabric of the present invention uses more hemp fibers to ensure higher strength and higher gas permeability.
  • the nonwoven fabric for use in an automotive interior part provided by the present invention preferably, the nonwoven fabric has a basis weight of 50-300 g/m 2 , and more preferably, the nonwoven fabric The basis weight is 100 g/m 2 .
  • the nonwoven fabric for use in an automotive interior part provided by the present invention preferably has a basis weight of 50-300 g/m 2 , and more preferably, the nonwoven fabric has a basis weight of 100 g/ m 2 . Better breathability and sound insulation can be guaranteed in this gram weight range.
  • an automotive interior part comprising the nonwoven fabric according to any of the above.
  • the interior trim is a car roof.
  • the interior trim member, particularly the automobile top cover, has the above-mentioned advantages of the above-mentioned non-woven fabric because it contains the above-mentioned non-woven fabric, and has better sound insulation and heat insulation effect, better strength and better gas permeability.
  • the core object of the present invention is to provide a non-woven fabric having good air permeability, which realizes the core of the core purpose of the present invention.
  • the means is to punch holes in the non-woven fabric.
  • the present invention is also directed to improving the overall performance of the nonwoven fabric including the sound insulating effect and strength.
  • a non-woven fabric applied to an interior part wherein the non-woven fabric is formed with a uniformly distributed through hole having a radius of 0.5 mm, a distance parallel to a tangent of two adjacent through holes 2mm; the weight percentage of each component of the nonwoven fabric is: hemp fiber accounts for 20%, polypropylene fiber accounts for 60%, and other fibers accounts for 20%; and the nonwoven fabric has a basis weight of 50 g/m 2 .
  • a non-woven fabric applied to an interior part wherein the non-woven fabric is formed with a uniformly distributed through hole having a radius of 2 mm, and the distance between the parallel tangents of the adjacent two through holes is 6mm;
  • the weight percentage of each component of the nonwoven fabric is: hemp fiber accounts for 90%, polypropylene fiber accounts for 10%, and the nonwoven fabric has a basis weight of 300 g/m 2 .
  • a non-woven fabric applied to an interior part wherein the non-woven fabric is formed with a uniformly distributed through hole having a radius of 1 mm, and the distance between the adjacent tangent lines of the adjacent two through holes is 4 mm ; the weight percentage of each component of the nonwoven fabric is: hemp fiber accounts for 50%, polylactic acid fiber accounts for 20%, other fibers accounts for 30%, and the nonwoven fabric has a basis weight of 200 g/m 2 .
  • a non-woven fabric applied to an interior part wherein the non-woven fabric is formed with a uniformly distributed through hole having a radius of 0.8 mm, and the adjacent two through holes are parallel to the tangent
  • the distance is 3.5 mm;
  • the weight percentage of each component of the nonwoven fabric is: hemp fiber accounts for 80%, polylactic acid fiber accounts for 20%, and the nonwoven fabric has a basis weight of 300 g/m 2 .
  • the weight percentage of each component of the nonwoven fabric is: hemp fiber accounts for 70%, polylactic acid fiber and polypropylene fiber accounts for 30%, and the nonwoven fabric has a basis weight of 100 g/m 2 .
  • a non-woven fabric applied to an interior part wherein the non-woven fabric is formed with a uniformly distributed through hole having a radius of 3 mm, a distance parallel to a tangent line of two adjacent through holes 5mm; the weight percentage of each component of the non-woven fabric is: hemp fiber accounts for 30%, polylactic acid fiber and polypropylene fiber accounts for 55%, other fibers account for 15%, and the non-woven fabric has a basis weight of 250g /m 2 .
  • the through hole ⁇ in the above-mentioned non-woven fabric has a certain difficulty in drilling with a conventional spunlace, and the through holes in the above-described embodiments of the present invention are all ultrasonically punched, and the perforated Speed is not greater than 5m/min, when Description
  • the above-mentioned through holes can also be laser-punched.
  • An automotive interior part comprising the nonwoven fabric in the above embodiment of the invention, the automotive interior part is preferably a car roof, the car roof having the advantages of the above-mentioned non-woven fabric, having high strength and Breathability.

Abstract

一种应用到汽车内饰件中的无纺布，所述无纺布上成型有均匀分布的通孔，所述通孔的半径为0.5-2mm，相邻两个通孔的圆切边距离为2-6mm。在所述无纺布上成型通孔，所述通孔对于声音和热量具有容纳作用，因此，成型有通孔的无纺布不仅具有较好的隔音隔热效果，而且具有良好的透气性。

Description

说 明 书 一种应用到汽车内饰件中的无纺布 技术领域
[0001] 本发明涉及一种无纺布， 具体涉及一种应用到汽车内饰件中的无纺布。
背景技术
[0002] 随着汽车行业的飞速发展， 汽车内饰材料逐渐朝着绿色环保的方向推陈出新。 传统 的汽车内饰件通常采用的都是 PU板 （聚氨酯板） 或 PP (聚丙烯） 木粉板， 其优点是成型性 好， 拉伸强度高， 但其透气性、 韧性差， 不抗冲击。
[0003] 中国专利文献 CN201484319U公开了一种汽车顶篷内饰板材， 所述汽车顶篷内饰板 材由上向下依次包括面料层、 复合层和底部层， 所述复合层的上、 下两面分别附着有上胶膜 和下胶膜， 所述面料层与复合层的上胶膜粘合， 所述底部层与所述复合层的下胶膜粘合， 其 中， 所述胶膜为聚乙烯， 所述复合层采用的是麻纤维无纺布， 这种复合材料虽然解决了 PU 板韧性差， 不抗冲击的问题， 但是其隔音隔热效果不佳， 而且透气性不好。
[0004] 中国专利文献 CN201863779U公开了一种汽车顶篷用隔音隔热防火板材， 所述汽车 顶篷用隔音隔热防火板材从上到下依次为上表层、 聚乙烯发泡层和下表层， 其中聚乙烯发泡 层为多孔状结构。 该文献中公开的汽车顶篷隔音隔热防火板材， 虽然通过位于中间层的聚乙 烯发泡形成孔洞， 可以部分起到透气的效果， 但是受到发泡工艺的影响， 在发泡不均匀的情 况下， 透气效果不佳； 同时， 该板材由于采用聚乙烯发泡， 其强度不佳， 虽然通过增加麻纤 维层可提高强度， 但复合麻纤维层后透气性变差。
发明内容
[0005] 因此， 本发明要解决的技术问题在于克服现有技术中的发泡层隔音隔热效果及透气 性都不佳的缺陷， 从而提供一种隔音隔热效果好， 透气性好的无纺布。
[0006] 本发明要解决的另一个技术问题在于提供一种强度较好的环保型无纺布。
[0007] 为此， 本发明提供一种用于汽车内饰件中的无纺布， 所述无纺布上成型有均匀分 布的通孔， 所述通孔的半径为 0.5-2mm， 相邻两个通孔的相平行的切线的距离为 2-6mm。
[0008] 优选地， 所述通孔的半径为 lmm， 相邻两个通孔的相平行的切线的距离为 4mm。
[0009] 优选地， 所述无纺布的各组分的重量百分比为： 麻纤维占 20-90%， 聚丙烯纤维和 /或 聚乳酸纤维占 10-60%， 其他纤维占 0-30%。
[0010] 优选地， 所述麻纤维占 30-80%。
[0011] 优选地， 所述麻纤维占 70%。 说 明 书
[0012] 优选地， 所述无紡布的克重为 50-300g/m2。
[0013] 优选地， 所述无纺布的克重为 100g/m2。
[0014] 优选地， 所述通孔采用超声波或者激光成型， 所述超声波打孔速度不大于 5m/min。
[0015] 含有上述任一项所述的无纺布的汽车内饰件。
[0016] 优选地， 所述内饰件为汽车顶篷。
[0017] 本发明提供的应用到汽车内饰件中的无纺布具有以下优点：
1. 本发明提供的用于汽车内饰件中的无纺布， 所述无纺布上成型有均匀分布的通孔， 所述 通孔的半径为 0.5-2mm， 相邻两个通孔的相平行的切线的距离为 2-6mm。 在所述无紡布上成 型通孔， 所述通孔具有较好的透气性， 因此， 成型有通孔的无纺布具有较好的透气效果。 在 本发明中， 优选地， 所述通孔的半径为 0.5-2mm， 相邻两个通孔的相平行的切线的距离为 2- 6mm, 进一步优选地， 所述通孔的半径为 lmm， 相邻两个通孔的相平行的切线的距离为 4mm。 对所述通孔的半径以及相邻两个通孔的相平行的切线的距离的上述选择避免了以下缺 陷： 第一、 所述通孔的直径很大， 但是相邻两个通孔的相平行的切线的距离很小， 无纺布不 容易与其他板材复合在一起， 尤其在采用针刺法复合时， 复合难度很大； 第二、 所述通孔的 直径很小， 而相邻两个所述通孔的相平行的切线的距离很大， 影响无纺布的透气性。
[0018] 2. 本发明提供的用于汽车内饰件中的无纺布， 优选地， 所述无纺布的各组分的重量 百分比为： 麻纤维占 20-90%， 聚丙烯纤维和 /或聚乳酸纤维占 10-60%， 其他纤维占 0-30%; 进一步优选地， 所述麻纤维占 30-80%， 再进一步优选地， 所述麻纤维占 70%。 麻纤维的强 度较高并且具有较好的透气性， 本发明的无纺布采用较多的麻纤维可以保证较高的强度和较 高的透气性。
[0019] 3. 本发明提供的用于汽车内饰件中的无纺布， 优选地， 所述无纺布的克重为 50- 300g/m2, 进一步优选地， 所述无纺布的克重为 100g/m2。 在所述无纺布的材质相同、 面积相 同的情况下， 克重越重， 厚度越大， 隔音隔热效果越好， 但是透气性越差。 本发明提供的用 于汽车内饰件中的无纺布， 优选地， 所述无纺布的克重为 50-300g/m2， 进一步优选地， 所述 无纺布的克重为 100g/m2。 在这一克重范围内可以保证较好的透气性和隔音隔热效果。
[0020] 4. 含有上述任一项所述的无纺布的汽车内饰件。 优选地， 所述内饰件为汽车顶篷。 所述内饰件尤其是汽车顶篷由于含有上述无纺布因此具有了上述无纺布的上述优点， 具有较 好的隔音隔热效果、 较好的强度以及较好的透气性。
具体实施方式
[0021] 本发明的核心目的是提供一种透气性较好的无纺布， 实现本发明的核心目的的核心 说 明 书
手段是在无纺布上打孔。 在实现本发明的核心目的的前提下， 本发明还致力于提高无紡布包 括隔音隔热效果、 强度在内的综合性能。
[0022] 下面结合具体的实施例对本发明的技术方案进行详细的说明。
[0023] 实施例 1
一种应用到内饰件中的无纺布， 所述无纺布上成型有均匀分布的通孔， 所述通孔的半径为 0.5mm, 相邻两个通孔的相平行的切线的距离为 2mm; 所述无纺布的各组分的重量百分比 为： 麻纤维占 20%， 聚丙烯纤维占 60%， 其他纤维占 20%; 所述无纺布的克重为 50g/m2。
[0024] 实施例 2
一种应用到内饰件中的无纺布， 所述无纺布上成型有均匀分布的通孔， 所述通孔的半径为 2mm, 相邻两个通孔的相平行的切线的距离为 6mm ; 所述无纺布的各组分的重量百分比 为： 麻纤维占 90%， 聚丙烯纤维占 10%， 所述无纺布的克重为 300g/m2。
[0025] 实施例 3
一种应用到内饰件中的无纺布， 所述无纺布上成型有均匀分布的通孔， 所述通孔的半径为 lmm, 相邻两个通孔的相平行的切线的距离为 4mm ; 所述无纺布的各组分的重量百分比 为： 麻纤维占 50%， 聚乳酸纤维占 20%， 其他纤维占 30%， 所述无纺布的克重为 200g/m2。
[0026] 实施例 4
一种应用到内饰件中的无纺布， 所述无纺布上成型有均匀分布的通孔， 所述通孔的半径为 0.8mm, 相邻两个通孔的圆相平行的切线的距离为 3.5mm; 所述无纺布的各组分的重量百分 比为： 麻纤维占 80%， 聚乳酸纤维占 20%， 所述无纺布的克重为 300g/m2。
[0027] 实施例 5
一种应用到内饰件中的无纺布， 所述无纺布上成型有均匀分布的通孔， 所述通孔的半径为 1.2mm, 相邻两个通孔的圆切边距离为 4.5mm; 所述无纺布的各组分的重量百分比为： 麻纤 维占 70%， 聚乳酸纤维和聚丙烯纤维占 30%， 所述无纺布的克重为 100g/m2。
[0028] 实施例 6
一种应用到内饰件中的无纺布， 所述无纺布上成型有均匀分布的通孔， 所述通孔的半径为 3mm, 相邻两个通孔的圆相平行的切线的距离为 5mm; 所述无纺布的各组分的重量百分比 为： 麻纤维占 30%， 聚乳酸纤维和聚丙烯纤维占 55%， 其他纤维占 15%， 所述无纺布的克 重为 250g/m2。
[0029] 需要说明的是， 上述无纺布中的通孔釆用传统的水刺打孔存在一定的难度， 本发 明的上述实施例中的通孔都采用超声波打孔， 所述打孔的速度不大于不大于 5m/min， 当 说 明 书
然， 上述通孔也可以采用激光打孔。
[0030] 包括本发明的上述实施例中的无紡布的汽车内饰件， 该汽车内饰件优选为汽车顶 篷， 该汽车顶篷具有上述无纺布的优点， 具有较高的强度和透气性。
[0031] 显然， 上述实施例仅仅是为清楚地说明所作的举例， 而并非对实施方式的限定。 对于所属领域的普通技术人员来说， 在上述说明的基础上还可以做出其它不同形式的变化或 变动。 这里无需也无法对所有的实施方式予以穷举。 而由此所引伸出的显而易见的变化或变 动仍处于本发明创造的保护范围之中。

Claims

权 利 要 求 书
1. 一种应用到汽车内饰件中的无紡布， 其特征在于： 所述无纺布上成型有均匀分布的通 孔， 所述通孔的半径为 0.5-2mm， 相邻两个通孔的相平行的切线的距离为 2-6mm。
2. 根据权利要求 1 所述的应用到汽车内饰件中的无纺布， 其特征在于： 所述通孔的半径为 lmm, 相邻两个通孔的相平行的切线的距离为 4mm。
3. 根据权利要求 1 或 2所述的应用到汽车内饰件中的无纺布， 其特征在于： 所述无纺布的 各组分的重量百分比为： 麻纤维占 20-90%， 聚丙烯纤维和 /或聚乳酸纤维占 10-60%， 其他纤 维占 0-30%。
4. 根据权利要求 3 所述的应用到汽车内饰件中的无纺布， 其特征在于： 所述麻纤维占 30- 80%。
5. 根据权利要求 1-4中任一项所述的应用到汽车内饰件中的无纺布， 其特征在于： 所述麻纤 维占 70%。
6. 根据权利要求 1-5中任一项所述的应用到汽车内饰件中的无纺布， 其特征在于： 所述无纺 布的克重为 50-300g/m2。
7. 根据权利要求 6所述的应用到汽车内饰件中的无纺布， 其特征在于： 所述无纺布的克重 为 100g/m2。
8. 根据权利要求 1-7中任一项所述的应用到汽车内饰件中的无纺布， 其特征在于： 所述通孔 采用超声波或者激光成型， 所述超声波打孔速度不大于 5m/min。
9. 含有权利要求 1-8中任一项所述的无纺布的汽车内饰件。
10. 根据权利要求 9所述的汽车内饰件， 其特征在于： 所述内饰件为汽车顶篷。
PCT/CN2012/082152 2011-09-30 2012-09-27 一种应用到汽车内饰件中的无纺布 WO2013044822A1 (zh)

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