JP5443436B2 - Covering tape material - Google Patents

Covering tape material Download PDF

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JP5443436B2
JP5443436B2 JP2011117059A JP2011117059A JP5443436B2 JP 5443436 B2 JP5443436 B2 JP 5443436B2 JP 2011117059 A JP2011117059 A JP 2011117059A JP 2011117059 A JP2011117059 A JP 2011117059A JP 5443436 B2 JP5443436 B2 JP 5443436B2
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tape material
covering tape
weather strip
weatherstrip
adhesive layer
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JP2011168062A (en
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吉徳 山城
貴 常盤
庫人 岡島
祐則 有竹
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Japan Vilene Co Ltd
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Description

本発明は、自動車のドアトリム等に装着されたウエザストリップに加飾被覆として貼着するための被覆テープ材に関する。   The present invention relates to a covering tape material for adhering as a decorative covering to a weather strip mounted on a door trim or the like of an automobile.

自動車のドア廻りには、開閉時の衝撃緩和のため、或いは走行時の静粛性や温湿度管理の重要性から車室の密閉性を高めるために種々の工夫が凝らされている。その一つとして、例えば特開2004−1774号公報(以下、特許文献1)では、ドアの開口周縁に設けられたフランジに装着するためのウエザストリップに関する技術が開示されている。   Around the doors of automobiles, various ideas have been devised in order to reduce the impact at the time of opening and closing or to enhance the airtightness of the passenger compartment due to the importance of quietness and temperature / humidity management during driving. As one of them, for example, Japanese Patent Application Laid-Open No. 2004-1774 (hereinafter referred to as Patent Document 1) discloses a technique related to a weather strip for mounting on a flange provided on an opening peripheral edge of a door.

図1は、上述の特許文献1に開示されたウエザストリップの概形を説明するための断面図である。同図に示すウエザストリップ11は特許文献1においてオープニングトリムと称され、断面略U字状の取付部13と、その一方の側面から突出形成された中空シール部15、並びに取付部13の他方の側面に形成された意匠リップ部17を主たる構成としている。この取付部13が画成するU字型の開口はドアのフランジ(図示せず)を収容、固定するために設けられ、当該フランジとの密着性を高める目的で、複数のフランジ保持リップ19が開口内部に対向するように突出形成されている。また、中空シール部15はフランジに装着された状態でドアと当接することによって可逆的に圧縮変形を受け、車室内の密閉性を付与するチューブ状の構造となっている。このように、取付部13はウエザストリップ11を図示していないフランジに固定、保持する機能を有し、圧縮変形可能な中空シール部15は閉じられたドアとフランジとの間で、密閉する機能を有する。従って、取付部13は、ドア形状に応じた開口周縁を画成するフランジに装着固定されるため、金属板などの剛性を有する素材が芯材として埋め込まれる場合もある。さらに、取付部13から意匠リップ部17に渡る外表面には、一体的な押出成形によって作製されたウエザストリップ11に対して、加飾被覆21が貼着されている。   FIG. 1 is a cross-sectional view for explaining the general shape of the weather strip disclosed in Patent Document 1 described above. The weather strip 11 shown in FIG. 1 is called an opening trim in Patent Document 1, and has a mounting portion 13 having a substantially U-shaped cross section, a hollow seal portion 15 protruding from one side surface thereof, and the other of the mounting portion 13. The design lip portion 17 formed on the side surface of the main body is the main configuration. The U-shaped opening defined by the mounting portion 13 is provided for accommodating and fixing a door flange (not shown), and a plurality of flange holding lips 19 are provided for the purpose of improving adhesion to the flange. A protrusion is formed so as to face the inside of the opening. Further, the hollow seal portion 15 has a tube-like structure that reversibly undergoes compressive deformation by being brought into contact with the door in a state where it is mounted on the flange, and imparts hermeticity in the passenger compartment. Thus, the attachment portion 13 has a function of fixing and holding the weather strip 11 to a flange (not shown), and the hollow seal portion 15 that can be compressed and deformed is sealed between the closed door and the flange. It has a function. Therefore, since the attachment portion 13 is mounted and fixed to a flange that defines the opening periphery according to the door shape, a rigid material such as a metal plate may be embedded as a core material. Furthermore, a decorative coating 21 is attached to the weather strip 11 produced by integral extrusion molding on the outer surface extending from the attachment portion 13 to the design lip portion 17.

以下、このようなウエザストリップのフランジにつき、図面を参照して説明する。図2は自動車のドア廻り、特にドアの開口周縁に設けられたフランジの配設形状例の説明図である。一般に、ドアは略五角形の形状で構成され、図示のようなドア開口23が形成されている。このドア開口23の周縁に設けられたフランジ25には、27の符号を付した曲線部が複数存在する。従って、車両の組立てに際しては、図1に示すようなウエザストリップ11の取付部13をフランジ25に嵌め込み、何れかの位置で、ウエザストリップ11の両端部同士が溶着等の手段によって連結固定される。   Hereinafter, the weather strip flange will be described with reference to the drawings. FIG. 2 is an explanatory view of an example of an arrangement shape of a flange provided around the door of an automobile, in particular, the opening periphery of the door. In general, the door has a substantially pentagonal shape, and a door opening 23 as shown is formed. On the flange 25 provided on the peripheral edge of the door opening 23, there are a plurality of curved portions denoted by reference numeral 27. Therefore, when assembling the vehicle, the mounting portion 13 of the weather strip 11 as shown in FIG. 1 is fitted into the flange 25, and the both ends of the weather strip 11 are connected and fixed by means such as welding at any position. Is done.

次いで、図1に例示したウエザストリップの材質構成について、前述した特許文献1では、取付部13、意匠リップ部17、並びにフランジ保持リップ19の材質例として、ソリッドEPDM(エチレン・プロピレン・ジエン共重合体)ゴムが用いられ、中空シール部13の材質例としてはスポンジEPDMゴムが開示され、これら性状の異なる材質及び図示していない芯材を一体的に押出成形する。また、この様にして得られたウエザストリップ11には、その取付部13から意匠リップ部17にわたる外表面に、樹脂フィルム、熱可塑性エラストマーフィルム又はファブリック(布)が熱溶着される。このような熱溶着された後の構成成分は、図1に示す加飾被覆21に相当するが、フランジ25への嵌め込み作業前に、上述したウエザストリップ11の意匠リップ部17に貼着されるものである。この意匠リップ部17は、ドア開口23に隣接して車室内に設けられたピラー、ヘッドライニングなど(図示せず)と、フランジ25に嵌め込まれた状態のウエザストリップ11との間隙を弾性的にシールする機能を果たすために用いられる。   Next, regarding the material configuration of the weather strip illustrated in FIG. 1, in Patent Document 1 described above, solid EPDM (both ethylene, propylene, and diene are used as material examples of the attachment portion 13, the design lip portion 17, and the flange holding lip 19. Polymer) rubber is used, and sponge EPDM rubber is disclosed as an example of the material of the hollow seal portion 13, and materials having different properties and a core material (not shown) are integrally extruded. In addition, a resin film, a thermoplastic elastomer film, or a fabric (cloth) is thermally welded to the outer surface from the attachment portion 13 to the design lip portion 17 on the weather strip 11 obtained in this manner. The component after such heat welding corresponds to the decorative coating 21 shown in FIG. 1, but is attached to the design lip portion 17 of the weather strip 11 before fitting into the flange 25. Is. The design lip portion 17 elastically forms a gap between a pillar, a headlining, etc. (not shown) provided in the passenger compartment adjacent to the door opening 23 and the weather strip 11 fitted in the flange 25. Used to perform the function of sealing.

さらに、上述した特許文献1によれば、加飾被覆21の好適態様として、その表面にシボ模様等の模様が賦形され、取付部13及び意匠リップ部17の外表面にも同様の模様と同一パターンを有すること、さらに、これら構成成分同士を同色調とすることで外観向上を図り得ると記載されている。   Furthermore, according to Patent Document 1 described above, as a preferred embodiment of the decorative covering 21, a pattern such as a texture pattern is formed on the surface thereof, and a similar pattern is also formed on the outer surfaces of the attachment portion 13 and the design lip portion 17. It is described that the appearance can be improved by having the same pattern, and by making these components have the same color tone.

特開2004−1774号公報([特許請求の範囲]、[0020]〜[0022]、[図2])JP 2004-1774 ([Claims], [0020] to [0022], [FIG. 2])

上述したウエザストリップは、主たる成型品に対して、加飾被覆を貼着した後にフランジへの嵌め込み作業が行われる。この際、フランジへの嵌め込み作業は、ウエザストリップを引き伸ばしながら行うことになるが、フランジの曲線部では、図1に示す取付部の加飾被覆表面にシワが発生し、外観を損なうという問題点があった。   The weather strip described above is fitted into a flange after a decorative coating is attached to the main molded product. At this time, the fitting operation to the flange is performed while the weather strip is stretched, but at the curved portion of the flange, wrinkles are generated on the decorative covering surface of the mounting portion shown in FIG. 1, and the appearance is impaired. There was a point.

また、このような加飾被覆を構成する素材として、意匠リップの表面を露出させない目的で面密度が100〜150(g/m)程度のトリコットが用いられている。しかしながら、トリコットは厚さが厚いため、意匠リップ部17との一体感を損なうという問題点があった。 As a material constituting such a decorative coating, a tricot having a surface density of about 100 to 150 (g / m 2 ) is used for the purpose of not exposing the surface of the design lip. However, since the tricot is thick, there is a problem that the sense of unity with the design lip portion 17 is impaired.

この発明は、上述した従来の問題点に鑑みなされたものであり、従って、本発明の目的は、ウエザストリップの装着作業時に発生する前述したシワを解消することが可能であり、加飾被覆としてウエザストリップへの貼着も容易であって、かつ貼着後の加飾被覆とウエザストリップとの優れた一体感を実現し得る被覆テープ材を提供することにある。   The present invention has been made in view of the above-described conventional problems. Accordingly, an object of the present invention is to eliminate the above-described wrinkles that occur during a weather strip mounting operation, and to provide a decorative coating. Thus, it is an object of the present invention to provide a coated tape material that can be easily attached to a weather strip and can realize an excellent sense of unity between the decorative coating and the weather strip after the application.

この目的の達成を図るため、本発明の被覆テープ材の構成によれば、捲縮発現した潜在捲縮性繊維を主体とする基材層と接着層とを備えたことを主たる特徴としている。   In order to achieve this object, according to the configuration of the coated tape material of the present invention, the main feature is that a base material layer mainly composed of crimped latent crimpable fibers and an adhesive layer are provided.

また、この発明の実施に当たり、上述した接着層がホットメルト樹脂で構成されているのが良い。さらに、本発明の被覆テープ材として、上述した基材層を水流絡合不織布で構成するのが好適である。   In carrying out the present invention, it is preferable that the above-mentioned adhesive layer is made of a hot melt resin. Furthermore, as the covering tape material of the present invention, it is preferable that the above-described base material layer is composed of a hydroentangled nonwoven fabric.

本発明の構成を採用することにより、ウエザストリップの装着作業時に発生する加飾被覆のシワを解消すると共に、ウエザストリップと加飾被覆との一体性を向上することができる。   By adopting the configuration of the present invention, it is possible to eliminate the wrinkle of the decorative coating that occurs during the work of attaching the weather strip, and to improve the integrity of the weather strip and the decorative coating.

本発明及び背景技術を説明するため、ウエザストリップの概略断面により示す図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of a weather strip for explaining the present invention and the background art. 本発明及び背景技術を説明するため、自動車のドア開口に着目して示す模式図である。It is a schematic diagram paying attention to the door opening of a car in order to explain the present invention and the background art.

以下、本発明の実施に好適な形態につき詳細に説明する。まず、本発明の主たる構成は後段に詳述する基材層と、接着層とを含むものである。始めに、本発明の基材層としては潜在捲縮性繊維を主体とする種々の布帛を採用することができるが、ウエザストリップへの貼着時にあっても適度な伸縮性を発揮し、しかも安価に製造し得ることから、捲縮発現された不織布とするのが好適である。この潜在捲縮性繊維とは、周知の通り、加熱によってスパイラル状、コイル状などの捲縮を多数生じるものであり、最適な捲縮発現条件を選択することにより、カード機等によってウエブ調製し、また、補助的にニードルパンチ技術や高圧水流法などの絡合を施した後に加熱することにより、初期の捲縮数の少なくとも2倍以上の捲縮数を発生させるものを言う。また、この基材層において、潜在捲縮性繊維が少なくとも50質量%以上含まれていれば、他の構成繊維を含むものであっても良い。さらに、上述した絡合技術として、高圧水流法による水流絡合不織布は、基材層の密度を効率的に高め、厚さを薄くすることが出来るため、意匠リップ部17との一体感が得られる。尚、本明細書において、繊維組成は何れも「質量%」を意味し、単に「%」と表す。   Hereinafter, preferred embodiments of the present invention will be described in detail. First, the main configuration of the present invention includes a base material layer, which will be described in detail later, and an adhesive layer. First, as the base material layer of the present invention, various fabrics mainly composed of latent crimpable fibers can be adopted, but even when sticking to a weather strip, it exhibits appropriate stretchability, And since it can manufacture cheaply, it is suitable to set it as the crimped nonwoven fabric. As is well known, this latent crimpable fiber is a material that produces a large number of crimps such as spirals and coils by heating, and is prepared by a web using a card machine or the like by selecting optimum crimping conditions. In addition, it means that the number of crimps at least twice as large as the initial number of crimps is generated by heating after supplementary entanglement such as a needle punch technique or a high-pressure water flow method. Moreover, in this base material layer, as long as the latent crimpable fiber is contained at least 50% by mass or more, other constituent fibers may be included. Further, as the above-described entanglement technique, the hydroentangled nonwoven fabric by the high-pressure water flow method can efficiently increase the density of the base material layer and reduce the thickness, so that a sense of unity with the design lip portion 17 is obtained. It is done. In the present specification, the fiber composition means “mass%” and is simply expressed as “%”.

上述した潜在捲縮性繊維としては、融点の異なる2種類の樹脂が複合された複合繊維や、繊維の一部に特定の熱履歴を施した繊維が使用される。複合繊維には、例えば偏芯型の芯鞘構造の複合繊維や、サイドバイサイド(貼り合わせ)型の複合繊維が好適に用いられる。融点の異なる樹脂の組み合わせとしては、ポリエステル−低融点ポリエステル、ポリアミド−低融点ポリアミド、ポリエステル−低融点ポリアミド、ポリエステル−ポリプロピレン、ポリプロピレン−低融点ポリプロピレン、ポリプロピレン−ポリエチレンなど種々の合成樹脂を組み合わせたものが使用できる。とくに、ポリエステル−低融点ポリエステルからなる潜在捲縮性繊維は耐熱性や捲縮発現後の伸縮性に優れているのでよい。また、繊維の一部に特定の熱履歴を施した繊維としては、例えば、熱刃などにポリエステル、ポリアミド、ポリアクリルなどの熱可塑性樹脂からなる繊維の一側面をあてながら通過させて熱履歴を与えた繊維などが使用される。   As the latent crimpable fiber described above, a composite fiber in which two kinds of resins having different melting points are combined, or a fiber having a specific heat history applied to a part of the fiber is used. As the composite fiber, for example, an eccentric core-sheath composite fiber or a side-by-side (bonding) type composite fiber is preferably used. Examples of combinations of resins having different melting points include those obtained by combining various synthetic resins such as polyester-low melting point polyester, polyamide-low melting point polyamide, polyester-low melting point polyamide, polyester-polypropylene, polypropylene-low melting point polypropylene, and polypropylene-polyethylene. Can be used. In particular, the latent crimpable fiber made of polyester-low-melting polyester may be excellent in heat resistance and stretchability after the occurrence of crimp. In addition, as a fiber having a specific thermal history applied to a part of the fiber, for example, the thermal history is applied by passing one side of a fiber made of a thermoplastic resin such as polyester, polyamide, or polyacryl to a hot blade. The given fiber is used.

また、潜在捲縮性繊維以外の繊維としては、実質的に加熱により捲縮の増加が生じない繊維を使用することができ、例えば、一般的に汎用されているポリエステル繊維、ナイロン繊維、ポリオレフィン系繊維、ポリアクリル繊維、レーヨン繊維、綿、羊毛などの繊維や、実質的に加熱により捲縮の増加が生じない複合繊維を用いることもできる。このような複合繊維としては、例えば可染性ポリエステル−ポリアミドなどの樹脂の組合わせからなる芯鞘型複合繊維などがある。なお、ここで実質的に加熱により捲縮の増加が生じない繊維とは、繊維単独で外力が加わらない状態で加熱した場合に多少の捲縮の増加が生じても、その捲縮数の増加分が元の捲縮数の5割未満のものを意味する。   Further, as the fibers other than the latent crimpable fibers, fibers that do not substantially increase crimp by heating can be used. For example, polyester fibers, nylon fibers, and polyolefin fibers that are generally used It is also possible to use fibers such as fibers, polyacrylic fibers, rayon fibers, cotton, and wool, and composite fibers that do not substantially increase crimps by heating. Examples of such composite fibers include core-sheath type composite fibers made of a combination of resins such as dyeable polyester-polyamide. Here, the fiber that does not increase in crimp substantially by heating means an increase in the number of crimps even if there is a slight increase in crimp when heated with no external force applied by the fiber alone. This means that the minute is less than 50% of the original number of crimps.

さらに、本発明の被覆テープ材を構成する接着層としては、種々の粘着剤、熱可塑性のホットメルト樹脂からなるフィルムや不織布など、テープ材をウエザストリップに貼着する手段に応じて種々に設計することができる。この中でも、種々のホットメルト樹脂をフィルム状に構成した接着層は、ウエザストリップの貼着後における厚さを最小限に抑制し、意匠リップ部17との優れた接着を実現し得るため、好適である。このような熱可塑性のホットメルト樹脂としては、周知のものを選択して用いることができ、例えば熱可塑性ポリアミド系樹脂、熱可塑性ポリエステル樹脂、熱可塑性ポリウレタン樹脂、ポリオレフィン樹脂またはポリオレフィン変性樹脂などを単独又は混合して用いることができる。   Furthermore, the adhesive layer constituting the coated tape material of the present invention can be variously selected depending on the means for sticking the tape material to the weather strip, such as various adhesives, films made of thermoplastic hot melt resin, and nonwoven fabrics. Can be designed. Among these, the adhesive layer constituted of various hot melt resins in a film shape can suppress the thickness after the weather strip is attached to the minimum, and can realize excellent adhesion with the design lip portion 17, Is preferred. As such a thermoplastic hot melt resin, a known one can be selected and used. For example, a thermoplastic polyamide-based resin, a thermoplastic polyester resin, a thermoplastic polyurethane resin, a polyolefin resin, or a polyolefin-modified resin is used alone. Or it can be mixed and used.

尚、本発明の被覆テープ材は、前述した意匠リップ部の寸法設計に応じた所定幅を種々に設計することができるが、意匠リップ部と被覆テープ材との一体性を得るために、被覆テープ材の厚さは0.3〜0.7mm(20(g/m)圧縮加重時)の範囲とするのが好ましい。 The coated tape material of the present invention can be designed in various ways according to the design dimensions of the design lip portion described above, but in order to obtain the integrity of the design lip portion and the coated tape material, The thickness of the tape material is preferably in the range of 0.3 to 0.7 mm (20 (g / m 2 ) when compressed).

以下、本発明の好適実施例につき、詳細に説明する。尚、本実施例としては、種々の構成で被覆テープ材を調製した後、実際にフランジへの装着状態を評価した結果につき説明する。また、これら記載は本発明の理解を容易とするため、特定の数値的条件、形状、配置関係等を挙げて説明するが、これら特定の条件は例示に過ぎず、本発明の目的の範囲内で、任意好適に設計の変更または変形を行うことができる。   Hereinafter, preferred embodiments of the present invention will be described in detail. In addition, as a present Example, after preparing a covering tape material by various structures, it demonstrates about the result of having actually evaluated the mounting state to a flange. In addition, these descriptions will be described with reference to specific numerical conditions, shapes, arrangement relationships, etc. in order to facilitate understanding of the present invention, but these specific conditions are merely examples and are within the scope of the object of the present invention. Thus, the design can be changed or modified arbitrarily.

(実施例1)
実施例1に係る被覆テープ材として、市販のポリエステル系潜在捲縮性繊維(2デニール×51mm:ポリエステル/変性ポリエステル)のみをカード法で開繊し、定法に従って高圧水流によって絡合することにより繊維ウエブとした後、当該構成繊維を捲縮発現させるために、186℃に設定した熱風加熱炉へ供給し、伸縮性不織布を得た。然る後、周知技術によって分散染料による染色を施し、面密度80.1(g/m)の基材層としての伸縮性不織布とした。次いで、接着層としては市販のホットメルト樹脂フィルムである「クランベター VA−3300」(倉敷紡績(株)製の商品名,融点138℃,面密度45.0(g/m),ポリオレフィン)を加熱接着し、面密度125.1(g/m)、厚さ0.4mm(前述圧縮荷重時)を有する実施例1の被覆テープ材とした。
Example 1
As a covering tape material according to Example 1, only a commercially available polyester-based latent crimpable fiber (2 denier × 51 mm: polyester / modified polyester) is opened by a card method and entangled by a high-pressure water flow according to a conventional method. After forming the web, in order to crimp the constituent fibers, it was supplied to a hot air heating furnace set at 186 ° C. to obtain a stretchable nonwoven fabric. Thereafter, dyeing with a disperse dye was performed by a well-known technique to obtain a stretchable nonwoven fabric as a base material layer having a surface density of 80.1 (g / m 2 ). Next, as the adhesive layer, “Clanbetter VA-3300” which is a commercially available hot melt resin film (trade name, Kurashiki Boseki Co., Ltd., melting point: 138 ° C., surface density: 45.0 (g / m 2 ), polyolefin) The coated tape material of Example 1 having a surface density of 125.1 (g / m 2 ) and a thickness of 0.4 mm (at the time of the compressive load) was obtained.

(実施例2)
実施例1と同一の基材層に、接着層として市販のホットメルト樹脂フィルムである「クランベター VA−1510」(倉敷紡績(株)製の商品名,融点95℃,面密度28(g/m),ポリエチレン)を加熱接着し、面密度108.1(g/m)、厚さ0.6mm(前述圧縮荷重時)を有する実施例2の被覆テープ材とした。
(Example 2)
On the same base material layer as in Example 1, “Clambetter VA-1510” (trade name, manufactured by Kurashiki Boseki Co., Ltd., melting point 95 ° C., surface density 28 (g / g), which is a commercially available hot melt resin film as an adhesive layer. m 2 ) and polyethylene) were heat-bonded to obtain a coated tape material of Example 2 having an areal density of 108.1 (g / m 2 ) and a thickness of 0.6 mm (at the time of compressive load).

(実施例3)
実施例3に係る被覆テープ材として、市販のポリエステル系潜在捲縮性繊維(2デニール×51mm:ポリエステル/変性ポリエステル)90%とポリエステル繊維(1.3デニール×38mm)10%とを実施例1と同様な条件で開繊し、高圧水流絡合することにより繊維ウエブとした後、当該構成繊維を捲縮発現させるために、186℃に設定した熱風加熱炉へ供給し、伸縮性不織布を得た。然る後、周知技術によって分散染料による染色を施し、面密度80.6(g/m)の基材層としての伸縮性不織布とした。次いで、実施例1と同一のホットメルト樹脂フィルムを加熱接着し、面密度125.6(g/m)、厚さ0.4mm(前述圧縮荷重時)を有する実施例3の被覆テープ材とした。
(Example 3)
As a covering tape material according to Example 3, 90% of commercially available polyester-based latent crimpable fiber (2 denier × 51 mm: polyester / modified polyester) and 10% of polyester fiber (1.3 denier × 38 mm) were used. After opening into a fiber web by entanglement with high-pressure water under the same conditions as above, in order to crimp the constituent fibers, the fiber is supplied to a hot air heating furnace set at 186 ° C. to obtain a stretchable nonwoven fabric. It was. Thereafter, dyeing with a disperse dye was performed by a well-known technique to obtain a stretchable nonwoven fabric as a base material layer having a surface density of 80.6 (g / m 2 ). Next, the same hot-melt resin film as that of Example 1 was heat-bonded, and the covering tape material of Example 3 having a surface density of 125.6 (g / m 2 ) and a thickness of 0.4 mm (at the time of the compressive load) did.

(比較例1)
比較例1に係る被覆テープ材として、市販のトリコット(面密度135(g/m))を基材層とし、接着層として、実施例1と同一のホットメルト樹脂フィルムを加熱接着し、面密度180.0(g/m)、厚さ0.8mm(前述圧縮荷重時)を有する比較例1の被覆テープ材とした。
(Comparative Example 1)
As the covering tape material according to Comparative Example 1, a commercially available tricot (surface density 135 (g / m 2 )) was used as a base material layer, and the same hot-melt resin film as in Example 1 was heat-bonded as an adhesive layer. It was set as the covering tape material of the comparative example 1 which has a density of 180.0 (g / m < 2 >) and thickness 0.8mm (at the time of the above-mentioned compression load).

(比較例2)
比較例2に係る被覆テープ材として、市販のポリエステル/ナイロンからなる16分割型の複合繊維(2デニール×51mm)のみを実施例1と同様な条件で開繊し、高圧水流絡合することにより細繊維に分割した繊維ウエブを調製し、分散染料による染色を施すことにより、面密度92.3(g/m)の基材層に相当する不織布を得た。次いで、実施例1と同一のホットメルト樹脂フィルムを加熱接着し、面密度137.3(g/m)、厚さ0.4mm(前述圧縮荷重時)を有する比較例2の被覆テープ材とした。
(Comparative Example 2)
As a covering tape material according to Comparative Example 2, only a 16-part composite fiber (2 denier × 51 mm) made of commercially available polyester / nylon is opened under the same conditions as in Example 1, and high-pressure water entangled. A fiber web divided into fine fibers was prepared and dyed with a disperse dye to obtain a nonwoven fabric corresponding to a substrate layer having an areal density of 92.3 (g / m 2 ). Next, the same hot-melt resin film as in Example 1 was heat-bonded, and the coated tape material of Comparative Example 2 having a surface density of 137.3 (g / m 2 ) and a thickness of 0.4 mm (at the time of the compressive load) did.

(比較例3)
比較例3に係る被覆テープ材として、原着ポリエステル繊維(3デニール×51mm)90%と原着ポリエステル系芯鞘型接着繊維(芯成分の融点:250℃、鞘成分の融点:110℃、4デニール×51mm)10%とを実施例1と同様な条件で開繊し、ニードルパンチ加工して、面密度101.3(g/m)の基材層に相当する不織布を得た。次いで、実施例2と同一のホットメルト樹脂フィルムを加熱接着し、面密度129.3(g/m)、厚さ1.8mm(前述圧縮荷重時)を有する比較例3の被覆テープ材とした。
(Comparative Example 3)
As a covering tape material according to Comparative Example 3, the original polyester fiber (3 denier × 51 mm) 90% and the original polyester core-sheath adhesive fiber (melting point of the core component: 250 ° C., melting point of the sheath component: 110 ° C., 4 Denier × 51 mm) 10% was opened under the same conditions as in Example 1 and subjected to needle punching to obtain a nonwoven fabric corresponding to a base material layer having a surface density of 101.3 (g / m 2 ). Next, the same hot-melt resin film as in Example 2 was heat-bonded, and the coated tape material of Comparative Example 3 having a surface density of 129.3 (g / m 2 ) and a thickness of 1.8 mm (at the time of the compressive load) did.

これら被覆テープ材を一般的なウエザストリップに貼着し、実際にフランジに装着した際の評価結果を表1に示す。また、同表においては、各テープ材の繊維組成、絡合手段等の構成を示すとともに、評価結果については、(1)フランジの曲線部における加飾被覆の表面状態(シワ発生の度合)、(2)フランジの曲線部での意匠リップ部17と被覆テープ材との一体性の二項目につき、従前のウエザストリップに相当する比較例1を基準として相対評価した。比較例1を△として、比較例1より良好な装着状態となった場合は○、比較例1より劣る場合は×として評価した。   Table 1 shows the evaluation results when these coated tape materials were attached to a general weather strip and actually attached to the flange. Moreover, in the same table | surface, while showing the structure of fiber composition of each tape material, an intertwining means, etc., about an evaluation result, (1) The surface state (degree of wrinkle generation | occurrence | production) of the decoration coating in the curved part of a flange, (2) Relative evaluation was made on the basis of Comparative Example 1 corresponding to a conventional weather strip for the two items of the integrity of the design lip portion 17 and the covering tape material at the curved portion of the flange. Comparative Example 1 was evaluated as Δ, and when it was in a better wearing state than Comparative Example 1, it was evaluated as ○, and when it was inferior to Comparative Example 1, it was evaluated as ×.

Figure 0005443436
Figure 0005443436

上記の表からも理解できるように、本発明の構成を適用した実施例1〜3では、何れの評価項目でも比較例1に比べて良好な結果となったのに対し、基材層として潜在捲縮性繊維を用いることなく構成した比較例2並びに比較例3では、伸縮性に乏しいために、表面状態及び一体性の何れも不適との結果であった。   As can be understood from the above table, in Examples 1 to 3 to which the configuration of the present invention was applied, all the evaluation items showed better results than Comparative Example 1, whereas the potential as a base material layer In Comparative Example 2 and Comparative Example 3 configured without using crimpable fibers, both the surface condition and the integrity were unsuitable because of poor stretchability.

11:ウエザストリップ、13:取付部、15:中空シール部、17:意匠リップ部、
19:フランジ保持リップ、21:加飾被覆、23:ドア開口、25:フランジ、
27:曲線部。
11: Weather strip, 13: Mounting portion, 15: Hollow seal portion, 17: Design lip portion,
19: flange holding lip, 21: decorative covering, 23: door opening, 25: flange,
27: Curve portion.

Claims (7)

捲縮発現した潜在捲縮性繊維を90〜100質量%含む基材層と、接着層とを備えたウエザストリップ用被覆テープ材であって、前記被覆テープ材の厚さが0.3〜0.7mm(20g/m圧縮加重時)であることを特徴とする、ウエザストリップ用被覆テープ材。 A weatherstrip covering tape material comprising a base layer containing 90-100% by mass of latent crimpable fibers that have crimped, and an adhesive layer, wherein the covering tape material has a thickness of 0.3- A weatherstrip covering tape material having a thickness of 0.7 mm (at 20 g / m 2 compression load). 前記接着層がホットメルト樹脂からなる、請求項1に記載のウエザストリップ用被覆テープ材。   The weatherstrip covering tape material according to claim 1, wherein the adhesive layer is made of a hot-melt resin. 前記接着層がホットメルト樹脂フィルムである、請求項2に記載のウエザストリップ用被覆テープ材。   The weatherstrip covering tape material according to claim 2, wherein the adhesive layer is a hot melt resin film. 前記基材層が水流絡合不織布である、請求項1〜3のいずれか一項に記載のウエザストリップ用被覆テープ材。   The covering tape material for weather strips as described in any one of Claims 1-3 whose said base material layer is a hydroentangled nonwoven fabric. 前記潜在捲縮性繊維が、スパイラル状又はコイル状に捲縮発現している、請求項1〜4のいずれか一項に記載のウエザストリップ用被覆テープ材。   The weatherstrip covering tape material according to any one of claims 1 to 4, wherein the latent crimpable fibers are crimped in a spiral shape or a coil shape. 捲縮発現した潜在捲縮性繊維を90〜100質量%含む基材層と、接着層とを備えたウエザストリップ用被覆テープ材であって、前記被覆テープ材の厚さが0.3〜0.7mm(20g/m圧縮加重時)であることを特徴とする被覆テープ材の、ウエザストリップへの使用。 A weatherstrip covering tape material comprising a base layer containing 90-100% by mass of latent crimpable fibers that have crimped, and an adhesive layer, wherein the covering tape material has a thickness of 0.3- Use of a covering tape material for a weather strip, which is 0.7 mm (at 20 g / m 2 compression load). 前記ウエザストリップが、自動車のドア開口周縁のフランジに保持される断面略U状の取付部と、該取付部から突出して設けられ、ドア閉時にドアの周縁と当接する中空シール部とを備えたウエザストリップであって、前記取付部の外表面に、前記被覆テープ材を、その接着層によって貼着する、請求項6に記載の使用。   The weather strip includes a mounting portion having a substantially U-shaped cross section that is held by a flange at the periphery of the door opening of an automobile, and a hollow seal portion that protrudes from the mounting portion and contacts the peripheral edge of the door when the door is closed. The weather strip according to claim 6, wherein the covering tape material is adhered to the outer surface of the attachment portion by the adhesive layer.
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JPS62227837A (en) * 1986-03-31 1987-10-06 Toyoda Gosei Co Ltd Weather strip for automobile
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