JP4184052B2 - Interior material with excellent processability and formaldehyde adsorption capacity - Google Patents

Interior material with excellent processability and formaldehyde adsorption capacity Download PDF

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Publication number
JP4184052B2
JP4184052B2 JP2002343424A JP2002343424A JP4184052B2 JP 4184052 B2 JP4184052 B2 JP 4184052B2 JP 2002343424 A JP2002343424 A JP 2002343424A JP 2002343424 A JP2002343424 A JP 2002343424A JP 4184052 B2 JP4184052 B2 JP 4184052B2
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Prior art keywords
fiber
weight
interior material
polyester
fibers
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JP2002343424A
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Japanese (ja)
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JP2004176396A (en
Inventor
稔博 片岡
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Kureha Corp
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Kureha Corp
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Description

【0001】
【発明の属する技術分野】
本発明は加工性とホルムアルデヒド吸着能に優れた内装材に係り、詳しくは車内や室内等に滞留し、人体に不快な臭いを与えたり、害を与えるホルムアルデヒドなどの化学物質を吸着除去できる不織布内装材に関するものである。
【0002】
【従来の技術】
近年、化学物質による人体への影響が問題となり、例えば新築家屋などで頭痛やめまいを起こす、いわゆる「シックハウス症候群」や室内,車内等における悪臭の存在は快適な生活環境の脅威となっている。
【0003】
しかし、これらの問題の対応としては、揮発,拡散による自然減少を待って対処するのが現状であり、一部、物理的吸着や化学的吸着による除去が提案されているが、未だ十分な対応をし得るには至っていない。
【0004】
【発明が解決しようとする課題】
本発明者は上述の如き実状に対処し、その問題を解決するために室内や車内に揮発,滞留している悪臭、特にホルムアルデヒド等の化学物質を化学的に吸着する作用を有する繊維を用いて不織布を作成することを試みたが、その作成にあたり、ほかの機能、例えば繊維間接着や意匠性のために原着繊維等の吸着能を有しない繊維を添加せざるを得なくなり、そのために吸着性能を有する繊維の添加量が低下し、吸着能が低下するということが判明した。
【0005】
本発明はかかる事実にもとづき、更にその解決を図るものであり、特に吸着性能を有する繊維に中空繊維の利用を見いだすことにより、ほかの機能のため吸着能を有しない繊維を添加せざるを得ないとしても別段、吸着能を損なうことなく、車内や室内に滞留するホルムアルデヒドや、その他の化学物質や臭気を効果的に吸着除去することを可能ならしめることを目的とするものである。
【0006】
【課題を解決するための手段】
即ち、上記目的に適合する本発明の特徴は、ホルムアルデヒド吸着能を有する中空繊維を70重量%以上含有し、熱融着性繊維を5重量%〜30重量%含有する繊維ウエブニードルパンチ処理を施し、構成繊維を互いに絡合せしめてなる加工性とホルムアルデヒド吸着能に優れた不織布内装材にある。
なお、ここで使用するホルムアルデヒド吸着能を有する中空繊維としては、含窒素化合物をコーティングしたポリエステル繊維、例えばクラレ製品フレッシュナー(登録商標)であり、また、熱融着性繊維としては、ポリエチレンテレフタレートと低融点ポリエチレンテレフタレートからなるサイドバイサイドまたは芯鞘構造の複合繊維が好適であり、これらは夫々の所要の割合で混合される。
また、上記両繊維に対し一部黒原着ポリエステル繊維を混合することも可能である。
【0007】
【発明の実施の形態】
以下、更に上記本発明の具体的実施の態様について詳述する。
【0008】
本発明は前述の如くホルムアルデヒド吸着能を有する中空繊維を70重量%以上含有し、熱融着性繊維を5〜30重量%含有する組成の繊維ウエブを用いニードルパンチ処理により構成繊維を互いに交絡して不織布とすることを基本とするものである。
ここで、上記ホルムアルデヒド吸着能を有する中空繊維としては、含窒素化合物をポリエステル繊維にコーティングして得られる繊維、例えばクラレ製品フレッシュナー(登録商標)であり、繊度は2デシテックス〜17デシテックスが好適である。そして該繊維を繊維ウエブに用いる割合としては、組成重量比が70重量%以上がよく、70重量%以下では消臭能力が不十分となり、中空繊維の効果が十分発揮できず好ましくない。
【0009】
また、一方、熱融着性繊維としては、例えばポリエステル系樹脂,ポリエチレン系樹脂,ポリプロピレン系樹脂,ポリアミド系樹脂の何れかの熱可塑性樹脂の高融点成分と低融点成分ならなる芯鞘型、サイドバイサイド型構造の複合繊維である。
代表例としてポリエステル繊維(融点250℃〜270℃程度)と低融点ポリエステル繊維(融点100℃〜150℃程度)の複合繊維、エステル/ナイロン複合繊維、ポリエステル/ポリエチレン複合繊維、ポリプロピレン/ポリエチレン複合繊維などが挙げられ、特に高融点ポリエステルと、低融点ポリエステルとの複合繊維は最も実用的である。
【0010】
この熱融着性繊維は自動車の内装材やカーペットの裏地等に加工するために、前記吸着性能を有する中空繊維との配合において構成繊維中に5重量%以上、なかんづく10重量%以上含まれることが良好な加工性を得ることが出来、かつ製品の吸着性能を確保するめためには30重量%以下、とりわけ20重量%以下含まれることが好ましい。
【0011】
そして、上記吸着性能を有する繊維と熱融着性繊維の配合された繊維ウエブはニードルパンチ処理によって構成繊維が互いに交絡され、ニードルパンチ不織布の形態で内装材に供されるが、ニードルパンチ不織布の目付は加工時による表面の繊維が毛羽だったり、破れが生じにくいようにするために、30g/m以上、就中、60g/m以上とすることが好ましく、内装材のボリューム感等を確保するためには500g/m、とりわけ300g/mとすることが好ましい。
なお、ニードルパンチによる繊維の交絡処理は、表面に起毛を起こさないように両面を均一にパンチすることが好適であり、かつ肝要である。
【0012】
【実施例】
以下、本発明の実施例及び比較例により、本発明をより具体的に説明する。
なお、以下の実施例及び比較例における目付量,厚さ,消臭性能評価及び不織布形態保持性評価は夫々、下記の方法に従って行った。
【0013】
目付量
JIS L1096の8.4.2に記載の方法に準拠して求めた。
厚さ
JIS L1096の8.5.1に記載の方法に従って荷重2KPaで測定した。
【0014】
吸着性能評価
試料の重さ ;3.0g
試料容器 ;5リットルテドラーパック
容器のガス量;3リットル
ガス初期濃度;ホルムアルデヒド 15ppm
ガス測定方法;検知管
試験室温度 ;20℃
測定時間 ;2時間、24時間
空試験・・・・・試料を入れないで同様に操作したもの。
【0015】
不織布の形態保持性評価
カーペットの裏地として加工した後の不織布面の短繊維状態を評価した。
表面に毛羽,ループが認められないものは○,表面にループが認められるものは△,表面がループと毛羽が混在する場合は×で判断した。
【0016】
実施例1
繊度4.4デシテックス、繊維長51mmのポリエステル/低融点ポリエステル複合繊維(低融点ポリエステルの融点:110℃)10重量%、及び繊度6.7デシテックス、繊維長51mmのクラレ製品フレッシュナー(ポリエステル繊維、P888、中空繊維)90重量%を配合してカーディングし、均一に混合した繊維層(平均繊度:6.47デシテックス)を作成し、引き続きこの繊維層に対し表面に深さ13mm、打ち込み本数60本/cm、裏面に同様に深さ10mm、打ち込み本数90本/cm、さらに表面に深さ8mm、打ち込み本数60本/cmの処理を施し本発明の内装材を得た。
【0017】
実施例2
繊度3.3デシテックス、繊維長51mmのポリエステル黒原着繊維を10重量%、繊度4.4デシテックス、繊維長51mmのポリエステル/低融点ポリエステル複合繊維(低融点ポリエステルの融点:110℃)10重量%、及び繊度6.7デシテックス、繊維長51mmのクラレ製品フレッシュナー(中空繊維)80重量%を均一混合した繊維層(平均繊度6.13デシテックス)を実施例1と同じ条件のニードルパンチ処理を施して本発明の内装材を得た。
【0018】
実施例3
繊度3.3デシテックス、繊維長51mmのポリエステル黒原着繊維を5重量%、繊度4.4デシテックス、繊維長51mmのポリエステル/低融点ポリエステル複合繊維(低融点ポリエステルの融点:110℃)15重量%、及び繊度6.7デシテックス、繊維長51mmのクラレ製品フレッシュナー(中空繊維)80重量%を均一混合した繊維層(平均繊度6.19デシテックス)を得て、これを実施例1と同じ条件のニードルパンチ処理を実施して本発明の内装材を得た。
【0019】
実施例4
繊度3.3デシテックス、繊維長51mmのポリエステル黒原着繊維を5重量%、繊度4.4デシテックス、繊維長51mmのポリエステル/低融点ポリエステル複合繊維(低融点ポリエステルの融点:110℃)20重量%、及び繊度6.7デシテックス、繊維長51mmのクラレ製品フレッシュナー(中空繊維)75重量%を均一混合した繊維層(平均繊度6.07デシテックス)を得て、これを実施例1と同じ条件のニードルパンチ処理を実施して本発明の内装材を得た。
【0020】
比較例1
繊度4.4デシテックス、繊維長51mmのポリエステル/低融点ポリエステル複合繊維(低融点ポリエステルの融点:110℃)4重量%、及び繊度6.7デシテックス、繊維長51mmのクラレ製品フレッシュナー(中空繊維)96重量%を配合し、次いでカーディングして均一に混合した繊維層(平均繊度:6.61デシテックス)を得た。これを実施例1と同じ条件のニードルパンチ処理を実施して比較内装材を得た。
【0021】
比較例2
繊度3.3デシテックス、繊維長51mmのポリエステル黒原着繊維を15重量%、繊度4.4デシテックス、繊維長51mmのポリエステル/低融点ポリエステル複合繊維(低融点ポリエステルの融点:110℃)20重量%、及び繊度6.7デシテックス、繊維長51mmのクラレ製品フレッシュナー(中空繊維)65重量%を均一混合した繊維層(平均繊度5.73デシテックス)を得た。これを実施例1と同じ条件のニードルパンチ処理を実施して比較内装材を得た。
【0022】
比較例3
繊度4.4デシテックス、繊維長51mmのポリエステル/低融点ポリエステル複合繊維(低融点ポリエステルの融点:110℃)4重量%、及び繊度7.3デシテックス、繊維長51mmのクラレ製品フレッシュナー(中実繊維)96重量%を配合し、次いで、カーディングして均一に混合した繊維層(平均繊度:7.18デシテックス)を得た。これを実施例1と同じ条件のニードルパンチ処理を実施して比較内装材を得た。
【0023】
比較例4
繊度4.4デシテックス、繊維長51mmのポリエステル/低融点ポリエステル複合繊維(低融点ポリエステルの融点:110℃)20重量%および繊度7.3デシテックス、繊維長51mmのクラレ製品フレッシュナー(中実繊維)80重量%を均一配合し、次いでカーディングして均一に混合した繊維層(平均繊度:6.72デシテックス)を得た。これを実施例1と同じ条件のニードルパンチ処理を実施して比較内装材を得た。
【0024】
以上の各実施例,比較例により得られた不織布内装材について、夫々前記に従って各持性を評価した。その結果を下記表1に示す。
【0025】
【表1】
【0026】
上記の表より明らかなように、不織布中の熱融着性繊維が5重量%〜30重量%の範囲においては形態保持性が良好で、かつホルムアルデヒドの吸着性能(2時間後の残量)は吸着繊維が70重量%以上であれば優れた性能を示していることが分かる。
【0027】
また、不織布中の熱融着性繊維が5重量%以下であると、ホルムアルデヒドの吸着性能が優れていても、形態保持性が悪く、商品としては劣り、ホルムアルデヒドの繊維形態が中空であるのと中実であるのとでは明らかに中空繊維が吸着性能の効果が優れていることが分かる。
【0028】
【発明の効果】
本発明内装材は以上のように、ホルムアルデヒド吸着能を有する中空繊維を70重量%以上含有し、熱融着性繊維を5重量%〜30重量%含有する繊維ウエブにニードルパンチ処理を施し構成繊維を互いに交絡せしめたものであり、室内や車内に揮発、滞留している悪臭、特にホルムアルデヒドなどの化学物質を化学的に吸着する作用を有する繊維が中空繊維であることにより吸着能を損なうことなく、車内や室内に滞留するホルムアルデヒドやその他の化学物質や臭気を効果的に吸着除去することが出来、しかも熱融着性繊維を5〜30重量%含有していることにより、形態保持性が頗る良好である効果を有している。
[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an interior material excellent in processability and formaldehyde adsorption ability, and more specifically, a nonwoven fabric interior that stays in a car or in a room and can adsorb and remove unpleasant odors or harmful chemical substances such as formaldehyde. It relates to materials.
[0002]
[Prior art]
In recent years, the influence of chemical substances on the human body has become a problem. For example, the so-called “sick house syndrome”, which causes headaches and dizziness in newly built houses, and the presence of bad odors indoors, in cars, etc., are threats to a comfortable living environment.
[0003]
However, as a countermeasure for these problems, the current situation is to wait for a natural decrease due to volatilization and diffusion, and some removal by physical adsorption or chemical adsorption has been proposed. I haven't been able to do that.
[0004]
[Problems to be solved by the invention]
The present inventor has dealt with the actual situation as described above, and uses a fiber having an action of chemically adsorbing a chemical substance such as formaldehyde and the like, which is volatilized and stays in a room or in a vehicle, in order to solve the problem. We tried to create a non-woven fabric, but in creating it, we had to add fibers that do not have adsorbability, such as primary fibers, due to other functions, such as inter-fiber adhesion and design properties. It has been found that the amount of fibers having performance decreases and the adsorption capacity decreases.
[0005]
The present invention is based on such facts and further solves the problem. In particular, by finding use of hollow fibers in fibers having adsorption performance, fibers having no adsorption ability must be added for other functions. If not, the object is to make it possible to effectively adsorb and remove formaldehyde, other chemical substances and odors staying in the vehicle or in the room without impairing the adsorption ability.
[0006]
[Means for Solving the Problems]
That is, the feature of the fit present invention the above object is a hollow fiber having a formaldehyde adsorption capacity containing 70 wt% or more, the needle-punched into a fiber web containing heat-fusible fibers 5 wt% to 30 wt% The nonwoven fabric interior material is excellent in processability and formaldehyde adsorbing ability obtained by entanglement of constituent fibers.
The hollow fiber having formaldehyde adsorption capacity used here is a polyester fiber coated with a nitrogen-containing compound, for example, Kuraray product freshener (registered trademark) , and the heat-fusible fiber is polyethylene terephthalate. A side-by-side or core-sheath composite fiber made of low-melting polyethylene terephthalate is preferred, and these are mixed in the required ratios.
Moreover, it is also possible to mix a part of black original polyester fiber with respect to the both fibers.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the present invention will be described in detail.
[0008]
The present invention entangles the constituent fibers with each other by needle punching using a fiber web containing 70% by weight or more of hollow fibers having formaldehyde adsorption capacity and 5-30% by weight of heat-fusible fibers as described above. It is basically made of non-woven fabric.
Here, as the hollow fiber having formaldehyde adsorption ability, a fiber obtained by coating a polyester fiber with a nitrogen-containing compound, for example, Kuraray product Freshener (registered trademark) , and a fineness of 2 decitex to 17 decitex is suitable. is there. And as a ratio which uses this fiber for a fiber web, 70 weight% or more of composition ratio is good, and if it is 70 weight% or less, the deodorizing capability becomes inadequate and the effect of a hollow fiber cannot fully be exhibited and is unpreferable.
[0009]
On the other hand, as the heat-fusible fiber, for example, a core-sheath type made of a high melting point component and a low melting point component of a thermoplastic resin of any of polyester resin, polyethylene resin, polypropylene resin, and polyamide resin, side-by-side It is a composite fiber with a mold structure.
Typical examples include polyester fiber (melting point: 250 ° C. to 270 ° C.) and low melting point polyester fiber (melting point: 100 ° C. to 150 ° C.) composite fiber, ester / nylon composite fiber, polyester / polyethylene composite fiber, polypropylene / polyethylene composite fiber, etc. In particular, a composite fiber of a high-melting polyester and a low-melting polyester is most practical.
[0010]
This heat-fusible fiber must be contained in the constituent fiber in an amount of 5% by weight or more, especially 10% by weight or more in the blending with the hollow fiber having the adsorption performance in order to be processed into an automobile interior material or carpet lining. In order to obtain good processability and to ensure the adsorption performance of the product, it is preferably contained in an amount of 30% by weight or less, particularly 20% by weight or less.
[0011]
The fiber web in which the fibers having the adsorption performance and the heat-fusible fiber are mixed is entangled with each other by a needle punching process, and is used as an interior material in the form of a needle punched nonwoven fabric. The basis weight is preferably 30 g / m 2 or more, especially 60 g / m 2 or more in order to prevent the surface fibers from being fluffed or torn easily during processing. In order to ensure, it is preferable to set it as 500 g / m < 2 >, especially 300 g / m < 2 >.
In addition, it is suitable and important for the fiber entanglement process by the needle punch to punch both surfaces uniformly so as not to raise the surface.
[0012]
【Example】
Hereinafter, the present invention will be described more specifically by way of examples and comparative examples of the present invention.
In addition, the fabric weight, thickness, deodorizing performance evaluation, and nonwoven fabric form retainability evaluation in the following examples and comparative examples were performed according to the following methods, respectively.
[0013]
The basis weight was determined in accordance with the method described in 8.4.2 of JIS L1096.
The thickness was measured at a load of 2 KPa in accordance with the method described in 8.5.1 of JIS L1096.
[0014]
Weight of adsorption performance evaluation sample: 3.0 g
Sample container; gas volume in 5 liter Tedlar pack container; 3 liter gas initial concentration; formaldehyde 15 ppm
Gas measurement method; detector tube test chamber temperature; 20 ° C
Measurement time: 2 hours, 24 hours blank test: The same operation was carried out without inserting a sample.
[0015]
Evaluation of shape retention of nonwoven fabric The short fiber state of the nonwoven fabric surface after processing as a carpet backing was evaluated.
Fluff on the surface and loops not recognized were judged as ◯, those with a loop on the surface were judged as △, and when the surface was mixed with loops and fluffs, it was judged as ×.
[0016]
Example 1
10% by weight polyester / low-melting polyester composite fiber having a fineness of 4.4 dtex and a fiber length of 51 mm (melting point of low-melting polyester: 110 ° C.), and Kuraray product freshener having a fineness of 6.7 dtex and a fiber length of 51 mm (polyester fiber, P888, hollow fiber) 90% by weight is mixed and carded to create a uniformly mixed fiber layer (average fineness: 6.47 dtex). Subsequently, the surface of this fiber layer is 13 mm deep and the number of driven-in wires is 60. The interior material of the present invention was obtained by performing a treatment of 10 mm / cm 2 on the back side, 10 mm in depth on the back side, 90 pieces / cm 2 to be driven in, and 8 mm in depth and 60 pieces / cm 2 on the surface.
[0017]
Example 2
10% by weight of a polyester black original fiber having a fineness of 3.3 dtex and a fiber length of 51 mm, 10% by weight of a polyester / low-melting polyester composite fiber having a fineness of 4.4 dtex and a fiber length of 51 mm (melting point of the low-melting polyester: 110 ° C.), And a fiber layer (average fineness of 6.13 dtex) in which 80% by weight of a Kuraray product freshener (hollow fiber) with a fineness of 6.7 dtex and a fiber length of 51 mm is uniformly mixed is subjected to needle punching under the same conditions as in Example 1. The interior material of the present invention was obtained.
[0018]
Example 3
5% by weight of polyester black original fiber having a fineness of 3.3 dtex and a fiber length of 51 mm, 15% by weight of polyester / low-melting polyester composite fiber having a fineness of 4.4 dtex and a fiber length of 51 mm (melting point of low-melting polyester: 110 ° C.), And a fiber layer (average fineness of 6.19 dtex) in which 80% by weight of Kuraray product freshener (hollow fiber) having a fineness of 6.7 dtex and a fiber length of 51 mm was uniformly mixed was obtained. Punching was performed to obtain the interior material of the present invention.
[0019]
Example 4
5% by weight of a polyester black original fiber having a fineness of 3.3 dtex and a fiber length of 51 mm, 20% by weight of a polyester / low-melting polyester composite fiber having a fineness of 4.4 dtex and a fiber length of 51 mm (melting point of the low-melting polyester: 110 ° C.), And a fiber layer (average fineness of 6.07 dtex) in which 75% by weight of Kuraray product freshener (hollow fiber) having a fineness of 6.7 dtex and a fiber length of 51 mm was uniformly mixed was obtained. Punching was performed to obtain the interior material of the present invention.
[0020]
Comparative Example 1
4% by weight polyester / low-melting polyester composite fiber with a fineness of 4.4 dtex and a fiber length of 51 mm (melting point of the low-melting polyester: 110 ° C.), and a Kuraray product freshener (hollow fiber) with a fineness of 6.7 dtex and a fiber length of 51 mm A fiber layer (average fineness: 6.61 dtex) was obtained by blending 96% by weight and then carding. This was subjected to needle punching under the same conditions as in Example 1 to obtain a comparative interior material.
[0021]
Comparative Example 2
15% by weight of polyester black original fiber having a fineness of 3.3 dtex and a fiber length of 51 mm, 20% by weight of polyester / low melting point polyester composite fiber having a fineness of 4.4 dtex and a fiber length of 51 mm (melting point of low melting point polyester: 110 ° C.), And a fiber layer (average fineness of 5.73 dtex) in which 65% by weight of Kuraray product freshener (hollow fiber) having a fineness of 6.7 dtex and a fiber length of 51 mm was uniformly mixed was obtained. This was subjected to needle punching under the same conditions as in Example 1 to obtain a comparative interior material.
[0022]
Comparative Example 3
4% by weight of polyester / low-melting polyester composite fiber with a fineness of 4.4 dtex and a fiber length of 51 mm (melting point of low-melting polyester: 110 ° C.), and a Kuraray product freshener with a fineness of 7.3 dtex and a fiber length of 51 mm (solid fiber) ) 96 wt% was mixed, and then carded to obtain a uniformly mixed fiber layer (average fineness: 7.18 dtex). This was subjected to needle punching under the same conditions as in Example 1 to obtain a comparative interior material.
[0023]
Comparative Example 4
20% by weight polyester / low-melting polyester composite fiber having a fineness of 4.4 dtex and a fiber length of 51 mm (melting point of the low-melting polyester: 110 ° C.) and a Kuraray product freshener having a fineness of 7.3 dtex and a fiber length of 51 mm (solid fiber) A fiber layer (average fineness: 6.72 decitex) obtained by uniformly blending 80% by weight and then carding was obtained. This was subjected to needle punching under the same conditions as in Example 1 to obtain a comparative interior material.
[0024]
About the nonwoven fabric interior material obtained by the above each Example and comparative example, each holding property was evaluated according to the above, respectively. The results are shown in Table 1 below.
[0025]
[Table 1]
[0026]
As is apparent from the above table, the form-retaining property is good when the heat-fusible fiber in the nonwoven fabric is in the range of 5 to 30% by weight, and the formaldehyde adsorption performance (remaining amount after 2 hours) is It can be seen that if the adsorbed fiber is 70% by weight or more, excellent performance is exhibited.
[0027]
Further, if the heat-fusible fiber in the nonwoven fabric is 5% by weight or less, even if the adsorption performance of formaldehyde is excellent, the form retention is poor, the product is inferior, and the formaldehyde fiber form is hollow. It is clear that the hollow fiber is excellent in the effect of adsorption performance when it is solid.
[0028]
【The invention's effect】
As described above, the interior material of the present invention contains 70% by weight or more of hollow fibers having formaldehyde adsorbing ability, and a fiber web containing 5% to 30% by weight of heat-fusible fibers, which is subjected to needle punching, and is a constituent fiber. Without damaging the adsorbing ability because the fiber that has a function of chemically adsorbing odors, especially formaldehyde and other chemical substances that are volatilized and staying in the room or in the car, is a hollow fiber. In addition, formaldehyde and other chemical substances and odors staying in the vehicle or in the cabin can be effectively adsorbed and removed, and the heat-fusible fiber is contained in an amount of 5 to 30% by weight, resulting in improved form retention. It has a good effect.

Claims (3)

含窒素化合物をポリエステル繊維にコーティングしてなるホルムアルデヒド吸着能を有する中空繊維を70重量%以上含有し、熱融着性繊維を5重量%〜30重量%含有する繊維ウエブにニードルパンチ処理を施し、構成繊維を互いに絡合せしめてなることを特徴とする加工性とホルムアルデヒド吸着能に優れた内装材。A fiber web containing 70% by weight or more of hollow fibers having formaldehyde adsorption capacity formed by coating a polyester fiber with a nitrogen-containing compound, and a fiber web containing 5% to 30% by weight of a heat-fusible fiber is subjected to needle punching. An interior material excellent in processability and formaldehyde adsorption capacity, characterized by entanglement of constituent fibers. 熱融着性繊維がポリエチレンテレフタレートと低融点ポリエチレンテレフタレートからなるサイドバイサイドまたは芯鞘構造の複合繊維である請求項1記載の加工性とホルムアルデヒド吸着能に優れた内装材。Heat-fusible fibers of polyethylene terephthalate and a low melting polyethylene terephthalate consisting terephthalate side-by-side or sheath-core composite fibers in which claim 1 Symbol placement of processability and formaldehyde adsorption ability excellent interior material structure. 繊維ウエブ構成繊維に黒原着ポリエステル繊維が一部含まれている請求項1または2記載の加工性とホルムアルデヒド吸着能に優れた内装材。Fiber web constituent fibers in black dope adhesive polyester fiber processability and formaldehyde adsorption ability excellent interior material of claim 1 or 2 Symbol placement contains part.
JP2002343424A 2002-11-27 2002-11-27 Interior material with excellent processability and formaldehyde adsorption capacity Expired - Fee Related JP4184052B2 (en)

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