JPH0717315A - 車両用内装材 - Google Patents

車両用内装材

Info

Publication number
JPH0717315A
JPH0717315A JP5183478A JP18347893A JPH0717315A JP H0717315 A JPH0717315 A JP H0717315A JP 5183478 A JP5183478 A JP 5183478A JP 18347893 A JP18347893 A JP 18347893A JP H0717315 A JPH0717315 A JP H0717315A
Authority
JP
Japan
Prior art keywords
fiber
weight
layer
polypropylene
interior material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5183478A
Other languages
English (en)
Other versions
JP2617414B2 (ja
Inventor
Manabu Sakamoto
学 坂本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ikeda Corp
Original Assignee
Ikeda Bussan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ikeda Bussan Co Ltd filed Critical Ikeda Bussan Co Ltd
Priority to JP5183478A priority Critical patent/JP2617414B2/ja
Priority to US08/250,574 priority patent/US5436046A/en
Publication of JPH0717315A publication Critical patent/JPH0717315A/ja
Application granted granted Critical
Publication of JP2617414B2 publication Critical patent/JP2617414B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • 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
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
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    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • 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
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/558—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
    • 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
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2223/00—Use of polyalkenes or derivatives thereof as reinforcement
    • B29K2223/10—Polymers of propylene
    • B29K2223/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2267/00—Use of polyesters or derivatives thereof as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1043—Subsequent to assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1043—Subsequent to assembly
    • Y10T156/1044—Subsequent to assembly of parallel stacked sheets only
    • Y10T156/1048—Subsequent to assembly of parallel stacked sheets only to form dished or receptacle-like product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
    • Y10T428/1366—Textile, fabric, cloth, or pile is sandwiched between two distinct layers of material unlike the textile, fabric, cloth, or pile layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/682—Needled nonwoven fabric
    • Y10T442/684—Containing at least two chemically different strand or fiber materials
    • Y10T442/688—Containing polymeric strand or fiber material

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)
  • Passenger Equipment (AREA)
  • Carpets (AREA)

Abstract

(57)【要約】 【目的】 クッション性及び成形性に優れるとともに、
軽量，安価でありながら高剛性を得られる車両用内装材
を提供する。 【構成】 構成繊維ウエブとして、ポリエステル繊維を
３０〜９０重量％とポリプロピレン繊維を７０〜１０重
量％含む表皮側の第１繊維層１と、ポリエステル繊維を
１０〜６０重量％とポリプロピレン繊維を９０〜４０重
量％含む中間に配置される第２繊維層２と、ポリエステ
ル繊維を４０〜９０重量％とポリプロピレン繊維を６０
〜１０重量％含む裏面側の第３繊維層３からなり、これ
らを順次重ねてニードル加工により一体化したものを加
熱・加圧成形してなる。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、内装用敷設材、特にト
ランクカーペット等として使用される車両用内装材に関
するものである。
【０００２】
【従来の技術】例えば、自動車の内装材としては、経済
性とともにその敷設面に大小の凹凸を有しているため成
形性に優れていることが前提となり、これに加えてクッ
ション性、剛性，軽量化等の諸特性が要求される。そこ
で、従来のトランクカーペットなどには、表皮繊維層に
基材としてフエルト層を一体化したものが多用されてい
る。この表皮繊維層は高融点であるポリエステル繊維を
主体に構成され外観特性などを付与している。また、前
記フエルト層はポリエステル繊維を７０重量％程度とポ
リプロピレン繊維を３０重量％程度含む繊維配合であ
り、低融点である熱可塑性のポリプロピレン繊維が成形
時に加熱溶融して成形性とともにバインダーとして機能
する。
【０００３】
【発明が解決しようとする課題】ところが、上述した従
来構造のものでは、外観及びクッション特性はそれなり
に優れているが、成形保持としてフエルト層を構成して
いるポリプロピレン繊維のみが機能しているので、成形
後の形状保持性及び剛性などの面では十分ではなかっ
た。この場合、ポリプロピレン繊維の含有比率を大きく
しただけでは成形性に問題が生じ、またフエルト層の厚
さを大きくしたり、ポリエチレン等の裏打ち材を施すと
重量が増大しコストも高くなるという問題点があった。
【０００４】本発明は上記背景に基づいて構成素材の組
合せ試験を重ねた結果、知見し完成されたものであり、
その目的はクッション性及び成形性に優れるとともに、
軽量，安価でありながら高剛性を得ることができる内装
材を提供することにある。
【０００５】
【課題を解決するための手段】すなわち、本発明の車両
用内装材は、構成繊維ウエブとして、ポリエステル繊維
を３０〜９０重量％とポリプロピレン繊維を７０〜１０
重量％含む表皮側の第１繊維層と、ポリエステル繊維を
１０〜６０重量％とポリプロピレン繊維を９０〜４０重
量％含む中間に配置される第２繊維層と、ポリエステル
繊維を４０〜９０重量％とポリプロピレン繊維を６０〜
１０重量％含む裏面側の第３繊維層からなり、これらを
順次重ねてニードル加工により一体化したものを加熱・
加圧成形したものである。
【０００６】
【作用】以上の内装材は、３層の繊維ウエブ構成にする
とともに、ポリエステル繊維に対するポリプロピレン繊
維の混合比を特定して各層内のポリプロピレン繊維がニ
ードル加工により適度な分布で他の層に混繊する結果、
内装材として最適なクッション性及び成形性、軽量性、
剛性がバランスよく得られるようになるものと考えられ
る。これは、ポリエステル繊維に対するポリプロピレン
繊維の混合比は各層あるいは１つの層において、本発明
の範囲以外になると諸特性のバランスがくずれて外観、
成形保持性、クッション性、剛性の１以上の点で問題が
発生することから明かである。
【０００７】第１繊維層はポリエステル（ＰＥＴ）繊維
３０〜９０重量％とポリプロピレン（ＰＰ）繊維７０〜
１０重量％の混合比であるが、より好ましくはＰＥＴ繊
維５０〜７０重量％とＰＰ繊維５０〜３０重量％であ
り、目付け量は１５０ｇ／ｍ2前後である。第２繊維層
はＰＥＴ繊維１０〜６０重量％とＰＰ繊維９０〜４０重
量％の混合比であるが、ＰＥＴ繊維３０〜５０重量％と
ＰＰ繊維７０〜５０重量％が好適であり、目付け量は３
００ｇ／ｍ2 前後である。第３繊維層はＰＥＴ繊維４
０〜９０重量％とＰＰ繊維ポリプロピレン６０〜１０重
量％の混合比であるが、より好ましくはＰＥＴ繊維５０
〜７０重量％とＰＰ繊維５０〜３０重量％であり、目付
け量は３００ｇ／ｍ2 前後である。
【０００８】以上の構成繊維ウエブにおいては、第１繊
維層ではＰＰ繊維７０重量％以上になると、ニードルパ
ンチング程度によって多少異なるが加熱・加圧成形する
と製品表面に樹脂ライクとなり、不織布としての外観が
損なわれる。逆にＰＰ繊維３０重量％以下になると、成
形保持性が低下し、この成形保持性はＰＰ繊維１０重量
％以下になると極端に低下する。第２繊維層ではＰＰ繊
維９０重量％以上になると、ニードルパンチング程度に
よって多少異なるが加熱・加圧成形により繊維から樹脂
状態になってもろくなり、外観及びクッション性等の点
で良好な製品が得られない。逆にＰＰ繊維５０重量％程
度になると成形保持性が次第に低下し、ＰＰ繊維４０重
量％以下では成形保持性が極端に低下するとともに、コ
ストも上がる。第３繊維層ではＰＰ繊維６０重量％以上
になると、ニードルパンチング程度によって多少異なる
ものの成形性が悪くなり、良好なクッション性が得られ
ない。逆にＰＰ繊維３０重量％以下になると、成形保持
性が低下し、この成形保持性はＰＰ繊維１０重量％以下
になると極端に低下する。
【０００９】
【実施例】以下、本発明の実施例について図面を用いて
更に説明する。図１は本発明に係る車両用内装材の構成
を模式的に示す断面図である。この内装材１０は、表皮
側を形成している第１繊維層１と、中間に位置する第２
繊維層２と、裏面側を形成している第３繊維層３とを重
ねて、ニードル加工により一体化したものを不図示の成
形金型にて所定形状に加熱・加圧成形したものである。
【００１０】各繊維層１，２，３は、それぞれポリエス
テル繊維とポリプロピレン繊維とを混ぜた混紡繊維であ
る。目付け量は第１繊維層が１５０ｇ／ｍ2 程度であ
り、第２繊維層が３００ｇ／ｍ2 程度であり、第３繊
維層が３００ｇ／ｍ2 程度である。これら繊維層１，
２，３は通常のニードル（５０ペア、１０ｍｍ、５０
ｓ）を使用して第１繊維層１側からニードル加工を施
し、各繊維層１，２，３を構成してポリエステル繊維及
びポリプロピレン繊維の一部を他層内に移行させ、互い
に絡合一体化した。そして、この一体化したしたものを
成形金型内で温度１４０℃で加圧成形した。
【００１１】ここで、各繊維層１，２，３における各繊
維の混合比を変えた多数の３層ウエブをサンプルとして
作成し、各サンプルについて前述の条件でニードル加工
及び加熱・加圧成形して得られた内装材を評価した結
果、表１に示すような結論が得られた。なお、表１にお
いて、各混合比は重量％である。
【００１２】
【表１】
【００１３】また、前記各サンプルの内装材を評価する
ため曲げ強さ試験を行った。この曲げ試験では、図２に
示す如く１００ｍｍ離れた位置に各々配置されている一
対の支持部材１１間に、長さが１５０ｍｍ、幅が５０ｍ
ｍの内装材試料Ｓを、その長さ方向での両端を掛け渡し
て配置し、さらに中央に荷重Ｗを付加して行った。この
曲げ強さ試験では、表１に示すような比率で構成した本
実施例の内装材１０の場合と、従来内装材（ポリエステ
ル繊維を主体とする表皮層に、繊維配合がポリエステル
繊維７０重量％程度とポリプロピレン繊維３０重量％程
度含むフエルトを基材として、同一条件で加熱・加圧成
形した内装材）と比較した結果、曲げ強さは従来内装品
が０．２４Ｋｇ・ｆ であるのに対して、本実施例の場
合では最低の０．２６Ｋｇ・ｆから最高の０．４３Ｋｇ
・ｆの範囲を示し、平均が０．３９Ｋｇ・ｆであり、剛
性が何れのものも優れていることが確認された。
【００１４】
【発明の効果】以上説明したとおり、本発明に係る車両
用内装材は、構成素材において、ポリプロピレン繊維は
ポリエステル繊維に比べて材料費が安価であり、このポ
リプロピレン繊維の比率を相対的に高くしているので全
体的に安価に提供できる。また、３層構造をとり、中間
層である第２繊維層のポリプロピレン繊維の含有量を外
観的に影響を及ぼすことなく増やすことができるので、
同じ目付量の比較において成形保持及び剛性を容易に確
保することができる。さらに、第３繊維層はポリエステ
ル繊維の比率をポリプロピレン繊維より高くしているの
で、クッション性ないしはソフトな感触性を付与でき
る。したがって、本発明の車両用内装材はクッション性
及び成形性に優れ、軽量，安価でありながら高剛性を具
備できる。
【図面の簡単な説明】
【図１】本発明内装材例の要部構成を拡大して示す模式
断面図である。
【図２】曲げ強さ試験装置の一例を示す模式図である。
【符号の説明】
１ 第１の繊維層 ２ 第２の繊維層 ３ 第３の繊維層 １０ 内装材
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｄ０４Ｈ 1/54 Ａ 7199−3Ｂ

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】 構成繊維ウエブとして、ポリエステル繊
    維を３０〜９０重量％とポリプロピレン繊維を７０〜１
    ０重量％含む表皮側の第１繊維層と、ポリエステル繊維
    を１０〜６０重量％とポリプロピレン繊維を９０〜４０
    重量％含む中間に配置される第２繊維層と、ポリエステ
    ル繊維を４０〜９０重量％とポリプロピレン繊維を６０
    〜１０重量％含む裏面側の第３繊維層からなり、これら
    を順次重ねてニードル加工により一体化したものを加熱
    ・加圧成形してなることを特徴とする車両用内装材。
JP5183478A 1993-06-30 1993-06-30 車両用内装材 Expired - Lifetime JP2617414B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5183478A JP2617414B2 (ja) 1993-06-30 1993-06-30 車両用内装材
US08/250,574 US5436046A (en) 1993-06-30 1994-05-27 Interior finishing web and method of producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5183478A JP2617414B2 (ja) 1993-06-30 1993-06-30 車両用内装材

Publications (2)

Publication Number Publication Date
JPH0717315A true JPH0717315A (ja) 1995-01-20
JP2617414B2 JP2617414B2 (ja) 1997-06-04

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Country Link
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JP (1) JP2617414B2 (ja)

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JP2002193014A (ja) * 2000-12-25 2002-07-10 Kasai Kogyo Co Ltd 車両用フロアカーペット
KR100382515B1 (ko) * 2001-04-23 2003-05-09 주식회사 라크인더스트리 몰딩용 브래지어의 부직포 제조방법.
KR20030068864A (ko) * 2002-02-18 2003-08-25 홍진평 모자성형용 원단의 제조 방법
KR100446901B1 (ko) * 2001-12-03 2004-09-04 동광기연 주식회사 자동차용 내장재
WO2006091031A1 (en) * 2005-02-23 2006-08-31 Karam Tech Co., Ltd The member for headliner on motor vehicles of multilayer structure
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KR100382515B1 (ko) * 2001-04-23 2003-05-09 주식회사 라크인더스트리 몰딩용 브래지어의 부직포 제조방법.
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KR20030068864A (ko) * 2002-02-18 2003-08-25 홍진평 모자성형용 원단의 제조 방법
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