JP3901315B2 - Mechanical hook male side sheet material - Google Patents

Mechanical hook male side sheet material Download PDF

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JP3901315B2
JP3901315B2 JP33011497A JP33011497A JP3901315B2 JP 3901315 B2 JP3901315 B2 JP 3901315B2 JP 33011497 A JP33011497 A JP 33011497A JP 33011497 A JP33011497 A JP 33011497A JP 3901315 B2 JP3901315 B2 JP 3901315B2
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lateral direction
length
head
lateral
male
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JPH11155612A (en
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哲也 舛木
章 野田
亮彦 郡司
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Kao Corp
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Kao Corp
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Description

【０００１】
【産業上の利用分野】
本発明は、メカニカルホックのオス側シート材に関し、詳しくは、接着面の全ての方向における高い係合力を発揮しうると共に、剥離に対する方向性を付与できるメカニカルホックのオス側シート材に関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
通常、メカニカルホックは、オス型係合部を有するオス側シート材とループ状メス型係合部を有するメス側シート材とを接着・剥離させるか、またはオス側シート材どうしを接着・剥離させることにより、止着具として機能するもので使い捨てオムツや衣料等の分野に広く用いられている。
このようなメカニカルホックのオス側シート材として、特表平８−５０８９１０号公報には、支持部（基材シート）から突出するステム（幹部）と、支持部とは反対側のステム先端に形成される円板状のヘッドとからなるフックを、支持部上に高密度に複数配列したものが開示されている。しかし、これらフックのヘッド上面の向きは接着面において方向性がないため、このオス側シート材は、接着面における方向の違いで係合力／脱着感を変られないという欠点がある。そのためおむつに適用される場合、このオス側シート材は、胴回り方向には高い係合力を与え、テープを付け剥がす方向（胴回り方向と直角の方向）にはソフトな脱着感を持たせることができない。また、このオス側シート材は、そのヘッドが円板状で角がなくヘッドとステム（の軸線）とのなす角度が大きいため、接着相手材のループ状メス型係合部やオス型係合部との引っかかりが悪く高い係合力を付与できないという欠点もある。
【０００３】
また、特開平２−５９４７号公報には、オス型係合部のヘッドが鉤状に形成されたオス側シート材が開示されている。しかし、このオス側シート材は、その鉤状のヘッドが幹部の上端を覆うように張り出していないため、接着面の全方向に対して十分な係合力を付与できないという欠点がある。
【０００４】
更に、特開平６−１３３８０８号公報には、断面がＴ状またはＬ状のオス型係合部を有するオス側シート材が開示されている。しかし、このオス側シート材も、そのヘッドがステムの全周方向に張り出してなくヘッドと支柱（幹部）とのなす角度も大きいため、接着面の全方向に対して十分な係合力を得られないという欠点がある。
【０００５】
従って、本発明の目的は、接着面の全ての方向における高い係合力を発揮しうると共に、剥離に対する方向性を付与できるメカニカルホックのオス側シート材を提供することにある。
【０００６】
【課題を解決するための手段】
本発明は、基材シート上にオス型係合部が高密度に配されてなる、メカニカルホックのオス側シート材において、上記オス型係合部は、上記基材シートから突出する幹部と、該幹部の上端に該幹部を覆って形成された屋根形状のヘッドとからなり、上記ヘッドは、その上面が上記基材シートと略平行であり、且つ該ヘッドの第一横方向と平行な一対の軒状部分と、該第一横方向に直角な第二横方向と平行な一対の軒状部分とを有しており、上記ヘッドは、上記第二横方向と平行な上記軒状部分の下面と上記基材シートに対する鉛直線とのなす角度が鋭角となり且つ上記第一横方向と平行な上記軒状部分の下面が上記基材シートと平行になるように形成されており、上記ヘッドの第一横方向の長さ及びそれに直角な第二横方向の長さが、それぞれ、該第一横方向と平行な上記幹部の第一横方向の長さ及びそれに直角な第二横方向の長さより長く、上記幹部の第一横方向の長さと第二横方向の長さとは異なっており、また、上記ヘッドの第一横方向の長さと第二横方向の長さとは異なっていることを特徴とするメカニカルホックのオス側シート材を提供することにより、上記目的を達成したものである。
【０００７】
【発明の実施の形態】
以下、本発明のメカニカルホックのオス側シート材について、添付図面を参照して説明する。図１は本発明のメカニカルホックのオス側シート材の一実施形態を示す拡大斜視図でオス型係合部一個のみを示しており、図２（ａ）及び（ｂ）は、それぞれ図１に示すオス型係合部の第二横方向及び第一横方向視拡大側面図、図３は図１に示すオス型係合部の基材シート上における配列状態の一部を基材シートを省略して示す拡大平面図である。
【０００８】
図１及び図２に示すメカニカルホックのオス側シート材１は、基材シート２上にオス型係合部３が高密度に配されてなるものである。このような構成は、従来公知のメカニカルホックのオス側シート材と同様である。
【０００９】
而して、本実施形態においては、上記オス型係合部３は、上記基材シート２から突出する幹部４と、該幹部４の上端に該幹部４を覆って形成された屋根形状のヘッド５とからなり、上記ヘッド５は、その上面が上記基材シート２と略平行であり、上記屋根形状のヘッド５における相対向する一対の軒状部分６（ヘッドの第二横方向と平行な一対の軒状部分）の下面と上記基材シート２に対する鉛直線とのなす角度が鋭角となるように形成されており、上記ヘッド５の第一横方向の長さ及びそれに直角な第二横方向の長さが、それぞれ、該第一横方向と平行な上記幹部４の第一横方向の長さ及びそれに直角な第二横方向の長さより長く、上記幹部４の第一横方向の長さと第二横方向の長さとは異なっており、また、上記ヘッド５の第一横方向の長さと第二横方向の長さとは異なっている。
【００１０】
更に詳述すると、上記幹部４は、その横断面は長方形状で、その軸線は上記基材シート２に対する鉛直線と平行となっている。また、上記ヘッド５は平面視において長方形状である。
【００１１】
上記屋根形状のヘッド５における上記一対の軒状部分６それぞれの下面と上記基材シート２に対する鉛直線とのなす角度（θ）は、好ましくは９０゜未満であり、更に好ましくは３０〜９０゜未満である。該角度（θ）がこの範囲内にあれば、オス型係合部３は接着相手材のループ状メス型係合部を十分に引掛け外れないようにすることができる。該角度（θ）が３０゜未満では、係合力が急増大するが、着脱時のバリバリ感を払拭し難く、また接着相手材のループ状メス型係合部を破損し易く、繰り返し脱着性に劣る。また該角度（θ）が９０°以上であると、係合力が大幅に低下する。
【００１２】
上記ヘッド５の第一横方向及び第二横方向の長さ（Ｗ、Ｃ）は、それぞれ、上記幹部４の第１横方向及び第２横方向の長さ（Ｄ、Ｂ）より好ましくは０．０１〜１ｍｍ長く、更に好ましくは０．０２〜０．６ｍｍ長い。この長さの違いが０．０１ｍｍ未満では接着相手材のループ状メス型係合部が該ヘッド５から外れ易くなり、また１．０ｍｍを越えると、反対に、接着相手材のループ状メス型係合部が係合過剰になり外れ難く、一つの該ヘッド５の占めるスペースが過大で該オス型係合部３の数の不足ともなる。
【００１３】
上記幹部４の第一横方向及び第二横方向の長さ（Ｄ、Ｂ）は、好ましくは０．０５〜０．８ｍｍであり、更に好ましくは０．１〜０．５ｍｍである。それぞれの長さ（Ｄ、Ｂ）がこの範囲内にある幹部４は、剥離方向に対し十分な厚みを有するため倒れにくく、メカニカルホックに高い係合力を与えられる。該幹部４は、それぞれの長さ（Ｄ、Ｂ）が０．０５ｍｍ未満だと脆弱で、また０．８ｍｍより長いとゴツイものとなり易い。
【００１４】
また、上記幹部の第一横方向の長さ（Ｄ）は第二横方向の長さ（Ｂ）より好ましくは０．０１〜０．５ｍｍ長く、更に好ましくは０．０２〜０．３ｍｍ長い。この長さの違いが０．０１ｍｍ未満であると、剥離に対する十分な方向性を付与し難く、０．５ｍｍを越えると、第一横方向への剥離のとき、第二横方向に倒れ易くなり、十分な係合力が得られない。
【００１５】
上記ヘッドの第一横方向及び第二横方向の長さ（Ｗ、Ｃ）は、自ずと規定されることだが、それぞれ好ましくは０．１〜１．８ｍｍであり、更に好ましくは０．１〜１．１ｍｍである。
また、上記ヘッドの第一横方向の長さ（Ｗ）は第二横方向の長さ（Ｃ）より好ましくは０．０１〜０．５ｍｍ長く、更に好ましくは０．０２〜０．３ｍｍ長い。この長さの違いが０．０１ｍｍ未満であると、剥離に対する十分な方向性を付与し難く、０．５ｍｍを越えると、第一横方向への剥離のとき、第二横方向に倒れ易くなり、ループ状メス型係合部がはずれ易くなり、十分な係合力が得られない。
【００１６】
上記オス型係合部３の高さ（Ｈ1 ）は、好ましくは０．１〜１．５ｍｍであり、更に好ましくは０．２〜１．２ｍｍである。また、上記幹部４の高さ（Ｈ2 ）は、好ましくは０．０５〜１．２ｍｍであり、更に好ましくは０．１〜１ｍｍである。該高さ（Ｈ1 ）が、１．５ｍｍを越えると、薄くてきめ細やかで表面滑らかなオス側シート材を得難い。該高さ（Ｈ2 ）が、０．０５ｍｍより低いと、接着相手材のループ状メス型係合部への該オス型係合部３の挿入性が悪くなる。該高さ（Ｈ1 ）と該高さ（Ｈ2 ）との差、即ち上記ヘッド５の中央部の厚さは、好ましくは０．０１ｍｍ以上、更に好ましくは０．０２ｍｍ以上である。該厚さが０．０１ｍｍ未満であると、該ヘッド５の中央部が薄くなり過ぎて、該オス型係合部３は薄弱になり係合力に不足し易い。
【００１７】
上記オス型係合部３，３・・は、図３に示すように、上記基材シート２上に碁盤目状態に均一に分散しており、その密度は、好ましくは６０個／ｃｍ2 以上であり、更に好ましくは８０〜８００個／ｃｍ2 である。該密度が６０個／ｃｍ2 未満では高い係合力を得難く、表面滑らかなオス側シート材を得難い。また該密度が８００個／ｃｍ2 を越えると接着相手材のループ状メス型係合部が侵入する上記オス型係合部３間のスペースが不足してやはり高い係合力を得難い。
【００１８】
また、上記ヘッド５，５・・の第一横方向及び第二横方向は、それぞれ同一方向を向いている。そして、該ヘッド５，５間の第一横方向の間隔（Ｐ1 ）及び第二横方向の間隔（Ｐ2 ）は、該ヘッド５の形状や大きさによって異なるが、より高い係合力を得るためには、該間隔（Ｐ1 ）は、０．０１〜５ｍｍであることが好ましく、０．０５〜２ｍｍであることが更に好ましい。また、該間隔（Ｐ2 ）は、０．０１〜５ｍｍであることが好ましく、０．０５〜２ｍｍであることが更に好ましい。
【００１９】
ここで、上記オス側シート材１を構成する材料は、特に制限されず、従来公知のものを適宜用いることができる。例えば、ポリエチレン、ポリプロピレン等のオレフィン類、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル類、ナイロン、ポリウレタン、また、スチレン系、オレフィン系、ウレタン系、エステル系、ポリアミド系等の各種の熱可塑性エラストマーなどを単独若しくは混合して用いられる。
【００２０】
また、上記オス側シート材１の製造方法は、特に制限されないが、例えば、上記基材シート２上に上記幹部４を押し出し成形により形成し、該幹部４とは別体に成形された上記ヘッド５を、適当な手段で該幹部４の上端に融着させて該オス側シート材１を形成する方法等が挙げられる。
【００２１】
また、上記基材シート２の厚みは、０．０１〜０．５ｍｍであることが好ましく、０．０２〜０．４ｍｍであることが更に好ましい。該厚みが０．０１ｍｍ未満だと、上記オス側シート材１は、オス側シート材としての基材物性を満たし難く、成形性も悪くなる。また、該厚みが０．５ｍｍを超えると、該オス側シート材１の屈曲性が悪くなる。
【００２２】
本実施形態のメカニカルホックのオス側シート材１によれば、上記オス型係合部３の上記ヘッド５が角を有し、且つ該ヘッド５の軒状部分６の下面と上記基材シート２に対する鉛直線とのなす角度が鋭角なため、該オス型係合部３が接着相手材のループ状メス型係合部と良く係合し、高い係合力を得ることができる。
また、上記ヘッド５が上記幹部４から上記基材シート２に平行な全方向（接着面に平行でもある）に張り出しているので、上記オス型係合部３は方向性なく接着相手材のループ状メス型係合部と係合し、接着面の全ての方向における高い係合力を得られると共に、上記オス型係合部３の第一横方向及び第二横方向の長さが異なるため剥離に対する方向性を得ることができる。
更に、本実施形態のオス側シート材１は、上記オス型係合部３が微細で高密度に上記基材シート２上に配されており、且つ、上記ヘッド５上面が平坦なため、きめ細かな外観・風合、及び心地よい手触り・肌触を有する。また更に、本実施形態のオス側シート材１は、極薄手で屈曲性に優れ、縫製やウェルダー等による取り付け加工性にも優れている。
【００２３】
本発明は上述した実施形態に限定されるものではなく、具体的な形状や寸法等は、本発明の趣旨を逸脱しない限りにおいて適宜変更可能である。
例えば、上記実施形態において、上記幹部の横断面を楕円形状としても良く、また該幹部の軸線は、上記基材シートに対する鉛直線と平行でなくとも良い。
また、上記実施形態において、隣り合うオス型係合部の長手方向の向きを交互に約９０゜変えて、接着面と平行な方向に回転する力を加わえた時に、剥離し易くなるようにしても良い。
また更に、上記実施形態において、オス型係合部を基材シート上に均一に分散させた状態としては、碁盤目状態に限らず、第一横方向及び第二横方向それぞれにおけるオス型係合部間の間隔が均一になる状態であれば良い。
【００２４】
尚、本発明のメカニカルホックのオス側シート材と接着される接着相手材としては、通常、ループ状メス型係合部を有するメス側シート材が用いられるが、本発明のオス型係合部を有するオス側シート材を接着相手材として用いることができる。
また、本発明のメカニカルホックのオス側シート材は、使い捨てオムツの止着具等に特に好適である。
【００２５】
【発明の効果】
本発明のメカニカルホックのオス側シート材は、接着面の全ての方向における高い係合力を発揮しうると共に、剥離に対する方向性を付与できる。
【図面の簡単な説明】
【図１】 図１は、本発明のメカニカルホックのオス側シート材の一実施形態を示す拡大斜視図でオス型係合部一個のみを示している。
【図２】 図２（ａ）及び（ｂ）は、それぞれ図１に示すオス型係合部の第二横方向及び第一横方向視拡大側面図である。
【図３】 図３は、図１に示すオス型係合部の基材シート上における配列状態の一部を基材シートを省略して示す拡大平面図である。
【符号の説明】
１． メカニカルホックのオス側シート材
２． 基材シート
３． オス型係合部
４． 幹部
５． ヘッド
６． 軒状部分[0001]
[Industrial application fields]
The present invention relates to a male side sheet material of a mechanical hook, and more particularly to a male side sheet material of a mechanical hook that can exhibit high engagement force in all directions of an adhesive surface and can impart directionality to peeling.
[0002]
[Prior art and problems to be solved by the invention]
Usually, the mechanical hook adheres / peels a male side sheet material having a male engaging portion and a female side sheet material having a looped female engaging portion, or adheres / peels male side sheet materials. Therefore, it functions as a fastening device and is widely used in the fields of disposable diapers and clothing.
As a male side sheet material of such a mechanical hook, Japanese Patent Publication No. 8-508910 discloses a stem (stem part) protruding from a support part (base material sheet) and a stem tip opposite to the support part. A plurality of hooks made of a disc-shaped head are arranged at high density on a support portion. However, since the direction of the upper surface of the head of these hooks is not directional on the bonding surface, the male side sheet material has a drawback that the engagement force / detachment feeling cannot be changed by the difference in the direction of the bonding surface. Therefore, when applied to a diaper, this male side sheet material gives a high engagement force in the waistline direction and cannot give a soft detachment feeling in the direction in which the tape is peeled off (direction perpendicular to the waistline direction). . In addition, this male side sheet material has a disk-like head with no corners and a large angle between the head and the stem (axis), so the looped female engagement part or male engagement of the bonding partner material There is also a disadvantage that the engagement with the portion is bad and a high engagement force cannot be applied.
[0003]
Japanese Patent Application Laid-Open No. 2-5947 discloses a male sheet material in which a head of a male engaging portion is formed in a bowl shape. However, this male side sheet material has a drawback in that a sufficient engagement force cannot be applied to all directions of the bonding surface because the hook-shaped head does not protrude so as to cover the upper end of the trunk.
[0004]
Further, Japanese Patent Laid-Open No. 6-133808 discloses a male side sheet material having a male engaging portion having a T-shaped or L-shaped cross section. However, this male side sheet material also has a large angle between the head and the column (stem), and the head does not protrude in the entire circumferential direction of the stem, so that sufficient engagement force can be obtained in all directions of the bonding surface. There is a disadvantage of not.
[0005]
Accordingly, an object of the present invention is to provide a male side sheet material of a mechanical hook that can exhibit high engagement force in all directions of an adhesive surface and can impart directionality to peeling.
[0006]
[Means for Solving the Problems]
The present invention relates to a male hook-side sheet material of a mechanical hook in which male engaging portions are arranged at high density on a base sheet, and the male engaging portion includes a trunk portion protruding from the base sheet, It becomes the upper end of the stem portion and a head roof shape formed over the stem portion, the head, the upper surface is substantially parallel to the substrate sheet, a and parallel to the first lateral direction of the head A pair of eaves-like portions, and a pair of eaves-like portions parallel to the second lateral direction perpendicular to the first lateral direction, wherein the head is parallel to the second lateral direction. the lower surface and the lower surface of the angle formed and the first lateral parallel the Nokijo portion Ri Do and acute and vertical line with respect to the base sheet is formed into so that a parallel to the base sheet The first lateral length of the head and the second lateral length perpendicular thereto are respectively , Longer than the first lateral length of the trunk parallel to the first lateral direction and the second lateral length perpendicular to the trunk, the first lateral length and the second lateral length of the trunk The above object is achieved by providing a male-side sheet material of a mechanical hook that is different, and that the first lateral length and the second lateral length of the head are different. Is.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the male side sheet | seat material of the mechanical hook of this invention is demonstrated with reference to an accompanying drawing. FIG. 1 is an enlarged perspective view showing one embodiment of a male side sheet material of a mechanical hook of the present invention, and shows only one male engaging portion. FIGS. 2 (a) and 2 (b) are respectively shown in FIG. FIG. 3 is an enlarged side view of the male engagement portion shown in the second lateral direction and the first lateral view, and FIG. 3 omits a part of the arrangement state on the base sheet of the male engagement portion shown in FIG. FIG.
[0008]
A male hook side sheet material 1 of a mechanical hook shown in FIGS. 1 and 2 is formed by arranging male engagement portions 3 on a base sheet 2 at a high density. Such a configuration is the same as that of a conventionally known male-side sheet material of a mechanical hook.
[0009]
And Thus, in this embodiment, the male engaging portion 3 is provided with a stem 4 which protrudes from the base sheet 2, the roof shape formed to cover the stem portion 4 to the upper end of the stem portion 4 made from the head 5 which, the head 5 has its upper surface is substantially parallel to the said base sheet 2, the second lateral pair of Nokijo portion 6 (head which faces the head 5 above Canon root shape Of the pair of eaves parallel to the base sheet 2 and the vertical line with respect to the base sheet 2 is formed to be an acute angle, and the length of the head 5 in the first lateral direction and perpendicular thereto. The length in the second lateral direction is longer than the length in the first lateral direction of the trunk 4 parallel to the first lateral direction and the length in the second lateral direction perpendicular thereto, respectively. The length in the direction is different from the length in the second lateral direction, and the length in the first lateral direction of the head 5 is different. It is different from To the length of the second lateral is.
[0010]
More specifically, the trunk 4 has a rectangular cross section, and its axis is parallel to a vertical line with respect to the base sheet 2. The head 5 has a rectangular shape in plan view.
[0011]
Angle between the pair of Nokijo portions 6 each lower surface and the vertical line with respect to the substrate sheet 2 in the head 5 of the upper wire carrier root shape (theta) is preferably less than 90 °, more preferably 30 to It is less than 90 °. If the angle (θ) is within this range, the male engaging portion 3 can be prevented from sufficiently pulling off the looped female engaging portion of the bonding partner material. When the angle (θ) is less than 30 °, the engagement force increases rapidly, but it is difficult to wipe off the burr feeling at the time of attachment and detachment, and the looped female engagement portion of the bonding partner material is easily damaged, so that it can be repeatedly detached. Inferior. Further, when the angle (θ) is 90 ° or more, the engagement force is significantly reduced.
[0012]
The lengths (W, C) of the head 5 in the first lateral direction and the second lateral direction are preferably 0 than the lengths (D, B) of the trunk portion 4 in the first lateral direction and the second lateral direction, respectively. .01 to 1 mm longer, more preferably 0.02 to 0.6 mm longer. If the difference in length is less than 0.01 mm, the looped female type engaging portion of the bonding partner material is easily detached from the head 5, and if it exceeds 1.0 mm, the looped female type of the bonding partner material is reversed. The engaging portion is over-engaged and is difficult to come off, and the space occupied by one head 5 is excessive and the number of the male engaging portions 3 is insufficient.
[0013]
The length (D, B) of the trunk portion 4 in the first lateral direction and the second lateral direction is preferably 0.05 to 0.8 mm, more preferably 0.1 to 0.5 mm. Since the trunk | drum 4 which each length (D, B) exists in this range has sufficient thickness with respect to a peeling direction, it is hard to fall down and high engagement force is given to a mechanical hook. The trunk 4 is fragile when its length (D, B) is less than 0.05 mm, and is prone to jerky when it is longer than 0.8 mm.
[0014]
The length (D) in the first lateral direction of the trunk is preferably 0.01 to 0.5 mm longer, more preferably 0.02 to 0.3 mm longer than the second lateral length (B). If the difference in length is less than 0.01 mm, it is difficult to give sufficient directionality to peeling, and if it exceeds 0.5 mm, it tends to collapse in the second lateral direction when peeling in the first lateral direction. A sufficient engagement force cannot be obtained.
[0015]
The lengths (W, C) in the first lateral direction and the second lateral direction of the head are naturally defined, but are preferably 0.1 to 1.8 mm, more preferably 0.1 to 1, respectively. .1 mm.
The first lateral length (W) of the head is preferably 0.01 to 0.5 mm longer, more preferably 0.02 to 0.3 mm longer than the second lateral length (C). If the difference in length is less than 0.01 mm, it is difficult to give sufficient directionality to peeling, and if it exceeds 0.5 mm, it tends to collapse in the second lateral direction when peeling in the first lateral direction. The loop-shaped female engagement portion is easily detached, and a sufficient engagement force cannot be obtained.
[0016]
The height (H 1 ) of the male engagement portion 3 is preferably 0.1 to 1.5 mm, and more preferably 0.2 to 1.2 mm. Moreover, the height (H 2 ) of the trunk portion 4 is preferably 0.05 to 1.2 mm, more preferably 0.1 to 1 mm. If the height (H 1 ) exceeds 1.5 mm, it is difficult to obtain a thin, fine and smooth surface on the male side. When the height (H 2 ) is lower than 0.05 mm, the insertability of the male engaging portion 3 into the looped female engaging portion of the bonding partner material is deteriorated. The difference between the height (H 1 ) and the height (H 2 ), that is, the thickness of the central portion of the head 5 is preferably 0.01 mm or more, more preferably 0.02 mm or more. When the thickness is less than 0.01 mm, the central portion of the head 5 becomes too thin, and the male engagement portion 3 becomes thin and tends to have insufficient engagement force.
[0017]
As shown in FIG. 3, the male engaging portions 3, 3,... Are uniformly distributed in a grid pattern on the base sheet 2, and the density is preferably 60 pieces / cm 2 or more. , and still more preferably from 80 to 800 pieces / cm 2. When the density is less than 60 / cm 2, it is difficult to obtain a high engagement force, and it is difficult to obtain a male surface sheet material having a smooth surface. On the other hand, if the density exceeds 800 pieces / cm 2 , the space between the male engaging portions 3 into which the looped female engaging portion of the bonding partner material enters is insufficient, and it is difficult to obtain a high engaging force.
[0018]
Further, the first lateral direction and the second lateral direction of the heads 5, 5,. The first lateral distance (P 1 ) and the second lateral distance (P 2 ) between the heads 5 and 5 vary depending on the shape and size of the head 5, but a higher engagement force is obtained. For this purpose, the interval (P 1 ) is preferably 0.01 to 5 mm, and more preferably 0.05 to 2 mm. Further, the distance (P 2) is preferably 0.01 to 5 mm, and further preferably from 0.05 to 2 mm.
[0019]
Here, the material which comprises the said male side sheet | seat material 1 is not restrict | limited in particular, A conventionally well-known thing can be used suitably. For example, olefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, nylon and polyurethane, and various thermoplastic elastomers such as styrene, olefin, urethane, ester and polyamide Used alone or in combination.
[0020]
Moreover, the manufacturing method of the male side sheet material 1 is not particularly limited. For example, the head formed by extruding the trunk 4 on the base sheet 2 and molded separately from the trunk 4. And a method of forming the male sheet material 1 by fusing 5 to the upper end of the trunk 4 by an appropriate means.
[0021]
Moreover, it is preferable that the thickness of the said base material sheet 2 is 0.01-0.5 mm, and it is still more preferable that it is 0.02-0.4 mm. When the thickness is less than 0.01 mm, the male side sheet material 1 is difficult to satisfy the physical properties of the base material as the male side sheet material, and the moldability also deteriorates. On the other hand, when the thickness exceeds 0.5 mm, the flexibility of the male side sheet material 1 is deteriorated.
[0022]
According to the male-side sheet material 1 of the mechanical hook of the present embodiment, the head 5 of the male engagement portion 3 has a corner, and the lower surface of the eaves-like portion 6 of the head 5 and the base sheet 2 Since the angle between the vertical line and the vertical line is an acute angle, the male engagement part 3 can be well engaged with the loop female engagement part of the bonding partner material, and a high engagement force can be obtained.
Further, since the head 5 protrudes from the trunk portion 4 in all directions parallel to the base sheet 2 (also parallel to the bonding surface), the male engagement portion 3 has a loop of the bonding counterpart material without directivity. Since it can engage with the female engaging part and obtain a high engaging force in all directions of the bonding surface, the male engaging part 3 has different lengths in the first lateral direction and the second lateral direction, so that it is peeled off. The directionality with respect to can be obtained.
Furthermore, the male side sheet material 1 of the present embodiment is fine because the male engaging portions 3 are finely and densely arranged on the base sheet 2 and the top surface of the head 5 is flat. Appearance, texture, and pleasant touch / feel. Furthermore, the male side sheet material 1 of the present embodiment is extremely thin and excellent in flexibility, and is excellent in attachment workability by sewing or a welder.
[0023]
The present invention is not limited to the above-described embodiments, and specific shapes, dimensions, and the like can be changed as appropriate without departing from the spirit of the present invention.
For example, in the above-described embodiment, the trunk may have an elliptical cross section, and the axis of the trunk may not be parallel to the vertical line with respect to the base sheet.
Further, in the above SL embodiment, the longitudinal direction of the neighboring Ri fit male engaging portion is changed to about 90 ° alternately, when E Kuwawa a force to rotate in a direction parallel to the bonding surface, so that the easily removed Anyway.
Furthermore, in the above embodiment, the state in which the male engaging portions are uniformly dispersed on the base sheet is not limited to the grid state, and the male engaging in each of the first lateral direction and the second lateral direction. Any state may be used as long as the interval between the parts is uniform.
[0024]
In addition, as the bonding partner material to be bonded to the male side sheet material of the mechanical hook of the present invention, a female side sheet material having a looped female type engagement portion is usually used, but the male engagement portion of the present invention. The male side sheet material which has can be used as an adhesion partner material.
Moreover, the male side sheet | seat material of the mechanical hook of this invention is especially suitable for the fastener of a disposable diaper, etc.
[0025]
【The invention's effect】
The male side sheet material of the mechanical hook of the present invention can exhibit high engagement force in all directions of the bonding surface and can impart directionality to peeling.
[Brief description of the drawings]
FIG. 1 is an enlarged perspective view showing one embodiment of a male side sheet material of a mechanical hook of the present invention, and shows only one male engagement portion.
2A and 2B are enlarged side views of the male engaging portion shown in FIG. 1 as viewed in the second lateral direction and the first lateral direction, respectively.
FIG. 3 is an enlarged plan view showing a part of the arrangement state of the male engagement portion shown in FIG. 1 on the base sheet with the base sheet omitted.
[Explanation of symbols]
1. 1. Mechanical hook male side sheet material 2. base material sheet 3. Male engagement part Executives 5. Head 6. Eaves

Claims (3)

基材シート上にオス型係合部が高密度に配されてなる、メカニカルホックのオス側シート材において、
上記オス型係合部は、上記基材シートから突出する幹部と、該幹部の上端に該幹部を覆って形成された屋根形状のヘッドとからなり、
上記ヘッドは、その上面が上記基材シートと略平行であり、且つ該ヘッドの第一横方向と平行な一対の軒状部分と、該第一横方向に直角な第二横方向と平行な一対の軒状部分とを有しており、
上記ヘッドは、上記第二横方向と平行な上記軒状部分の下面と上記基材シートに対する鉛直線とのなす角度が鋭角となり且つ上記第一横方向と平行な上記軒状部分の下面が上記基材シートと平行になるように形成されており、
上記ヘッドの第一横方向の長さ及びそれに直角な第二横方向の長さが、それぞれ、該第一横方向と平行な上記幹部の第一横方向の長さ及びそれに直角な第二横方向の長さより長く、
上記幹部の第一横方向の長さと第二横方向の長さとは異なっており、また、上記ヘッドの第一横方向の長さと第二横方向の長さとは異なっている
ことを特徴とするメカニカルホックのオス側シート材。In the male side sheet material of the mechanical hook, wherein the male engagement portions are arranged with high density on the base sheet,
It said male engaging portion is composed of a stem projecting from the substrate sheet, the head of the roof shape formed over the stem portion to the upper end of the stem portion,
The head has a pair of eaves-like portions whose upper surface is substantially parallel to the base sheet and parallel to the first lateral direction of the head, and parallel to a second lateral direction perpendicular to the first lateral direction. A pair of eaves-shaped portions,
The head, the lower surface of the second lateral direction parallel to the bottom surface and the angle formed acute and Do Ri and the first lateral parallel above Nokijo portion between the vertical line with respect to the substrate sheet of the Nokijo portion There are formed on so that a parallel to the base sheet,
The first lateral length of the head and the second lateral length perpendicular to the first lateral length are the first lateral length of the trunk parallel to the first lateral direction and the second lateral length perpendicular thereto, respectively. Longer than the direction length,
The first lateral length and the second lateral length of the trunk are different, and the first lateral length and the second lateral length of the head are different. Male side sheet material for mechanical hooks. 上記ヘッドにおける、上記第二横方向と平行な上記軒状部分の下面と上記基材シートに対する鉛直線とのなす角度が９０°未満であり、
上記ヘッドの第一横方向及び第二横方向の長さは、それぞれ、上記幹部の第一横方向及び第二横方向の長さより０．０１〜１ｍｍ長く、
上記幹部の第一横方向及び第二横方向の長さが、それぞれ０．０５〜０．８ｍｍであり、且つ該幹部の第一横方向の長さは第二横方向の長さより０．０１〜０．５ｍｍ長く、
上記ヘッドの第一横方向及び第二横方向の長さが、それぞれ０．１〜１．８ｍｍであり、且つ該ヘッドの第一横方向の長さは第二横方向の長さより０．０１〜０．５ｍｍ長く、
上記オス型係合部の高さが０．１〜１．５ｍｍであり、且つ上記幹部の高さが０．０５〜１．２ｍｍである
ことを特徴とする請求項１記載のメカニカルホックのオス側シート材。In the upper Kihe head, the angle between the second horizontal and parallel to the lower surface and the vertical line with respect to the substrate sheet of the Nokijo portion is less than 90 °,
The lengths of the first lateral direction and the second lateral direction of the head are 0.01 to 1 mm longer than the lengths of the trunk in the first lateral direction and the second lateral direction, respectively.
The length of the trunk in the first lateral direction and the second lateral direction is 0.05 to 0.8 mm, respectively, and the length in the first lateral direction of the trunk is 0.01 than the length in the second lateral direction. ~ 0.5mm longer,
The length in the first lateral direction and the second lateral direction of the head is 0.1 to 1.8 mm, respectively, and the length in the first lateral direction of the head is 0.01 than the length in the second lateral direction. ~ 0.5mm longer,
The male of the mechanical hook according to claim 1, wherein the male engaging portion has a height of 0.1 to 1.5 mm, and the trunk has a height of 0.05 to 1.2 mm. Side sheet material. 上記オス型係合部は、上記基材シート上に均一に分散しており、その密度が６０個／ｃｍ2 以上であることを特徴とする請求項１又は２記載のメカニカルホックのオス側シート材。3. The male side sheet of the mechanical hook according to claim 1, wherein the male engagement portion is uniformly dispersed on the base sheet and has a density of 60 pieces / cm 2 or more. Wood.
JP33011497A 1997-12-01 1997-12-01 Mechanical hook male side sheet material Expired - Fee Related JP3901315B2 (en)

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JP6078340B2 (en) * 2010-07-27 2017-02-08 クラレファスニング株式会社 A hook-and-loop fastener with excellent temporary fixing
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