JP4420533B2

JP4420533B2 - Shaped plastic ribbon and molded product with the ribbon attached

Info

Publication number: JP4420533B2
Application number: JP2000162269A
Authority: JP
Inventors: 米夫平川; 智次阿部
Original assignee: Kyowa Ltd
Current assignee: Kyowa Ltd
Priority date: 2000-05-31
Filing date: 2000-05-31
Publication date: 2010-02-24
Anticipated expiration: 2020-05-31
Also published as: JP2001341195A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば紙袋やプラスチック袋に用いて、その開口部の開閉口や所望の部位からの折り曲げ固定が自在にできる、あるいは衛生マスクに用いて、鼻筋に沿うような癖付けが該マスクにおいて自在にできる等、成型物の所望の部位に取り付けて該成型物の取り付け部位を容易に所望の形状に賦形することのできる賦形性プラスチックリボン及び該リボンを取り付けた成型物に関する。
【０００２】
【従来の技術】
従来、薄いあるいは軟らかい袋、例えばプラスチックのゴミ袋等を使用のため開口する時は静電気などにより開口部がくっついた状態となっており、手で揉むなどして開口していた。またゴミ等を収納した後、廃棄のために閉口する場合には開口部付近を輪ゴム等で縛るか、袋上部をよじり、輪結びするなどの繁雑なやり方で閉口していた。
【０００３】
さらに、袋の使い方として袋を開口したまま、ベットや机のサイドに取り付けて汚物やゴミを収納するような場合がしばしばあるが、袋が薄い場合や軟らかい場合は袋がうまく開口した状態を保てないため、いちいち袋を開口してから汚物やゴミ等を収納なければならない等の不便があった。
【０００４】
さらに別の使い方として例えば内容物の量により袋を中途より折り曲げて持ち運ぶといった場合があるが、この様な場合でも薄い袋や軟らかい袋は折り曲げ部の固定がうまくできないため折り曲げ部を手で押さえながら持ち運ばなければならない等の問題があった。
【０００５】
一方、ガーゼ布等のみからなる芯材なしのマスクなどでは、マスクをした時鼻梁ぎわに隙間ができたり、マスクが鼻梁で固定できずズリ落ちたりするなどの欠点がある。
【０００６】
このような問題を解決せんとして、針金を芯材としたプラスチックの帯状物（商品名・ビニタイ株式会社共和製）を取り付けた袋やマスク等が市販されているが、金属を芯材として用いるため不要になった袋を廃棄する時や使用済みのマスクを廃棄する時などに金属を除去しなければならない場合があるなどの欠点が指摘されている。
【０００７】
【発明が解決しようとする課題】
本発明は金属の芯材を用いない熱可塑性樹脂配合物単体からなる賦形性に優れたプラスチックリボンを得るという課題、さらには該リボンを取り付けることにより容易に所望の形状に賦形できる成型物を得て該成型物の使用時や運搬時の不便さをなくすという課題を解決せんとするものである。即ち、本発明は金属の芯材を用いない熱可塑性樹脂配合物単体からなる賦形性に優れたプラスチックリボンを得ること、及び該リボンを取り付けることにより所望の賦形能力を有する成型物を得ることを目的とする。
【０００８】
【課題を解決するための手段】
本発明はポリエステル系樹脂、ポリエーテル系樹脂、ポリオレフィン系樹脂、ポリオレフィン共重合体系樹脂、ポリ炭酸エステル系樹脂の中から選択された１種又は２種以上の熱可塑性樹脂に平均粒子径６．０μｍ以下の球状又は比表面積１．０ｍ^２／ｇ以上の鱗片形状の粒子形状を有する珪酸、珪酸塩類、炭酸塩類、金属酸化物、金属硫化物、酸素酸塩、金属水酸化物の中から選択された１種又は２種以上の粉体物を主成分とする賦形付与剤を配合した熱可塑性樹脂配合物を帯状に溶融押出しした後、前記熱可塑性樹脂のガラス転移温度以下に冷却固化し、次いで延伸倍率１．５倍〜４．０倍に延伸して、賦形性と賦形保持性とを有するリボン状に形成してなることを特徴とする賦形性プラスチックリボンである。
【０００９】
【発明の実施の形態】
以下、本発明を図面に基づいて詳述するが、本発明はこれらに限定されるものではない。
図１（ａ）は本発明の賦形性プラスチックリボンの一例を示す斜視図、
図１（ｂ）は片面に接着剤を設けた本発明の賦形性プラスチックリボンの他例を示す斜視図、
図２はリールに巻かれた形状の一例を示す本発明の賦形性プラスチックリボンの斜視図、
図３は本発明の賦形性プラスチックリボンの賦形例を示す斜視図であって
（ａ）はリボンの片端を折り曲げた一例を示す斜視図；
（ｂ）はリボンの両端を折り曲げた一例を示す斜視図；
（ｃ）はリボンの略中央部を癖付けした一例を示す斜視図；
（ｄ）はリボンの略中央部を折り曲げた一例を示す斜視図；
（ｅ）はリボンを略中央部から折りたたむ一例を示す斜視図；
（ｆ）はリボンを多段に折り曲げた一例を示す斜視図、
図４（ａ）は本発明の賦形性プラスチックリボンを開口部付近に横方向に取り付けたペーパーバックの一例を示す斜視図、
図４（ｂ）は図４（ａ）のように取り付けたプラスチックリボンを折り曲げて開口部付近を閉口したペーパーバックの一例を示す斜視図、
図５（ａ）は本発明の賦形性プラスチックリボンを開口部付近に横方向に取り付けたペーパーバックの他例を示す斜視図、
図５（ｂ）は図５（ａ）のように取り付けたプラスチックリボン部位を折り曲げて開口部を開口した状態に維持したペーパーバックの一例を示す斜視図、
図６（ａ）は本発明の賦形性プラスチックリボンを腹部付近に縦方向に取り付けたペーパーバックの一例を示す斜視図、
図６（ｂ）は図６（ａ）のように取り付けたプラスチックリボン部位を折り曲げて該折り曲げ部を固定したペーパーバックの一例を示す斜視図、
図７（ａ）は本発明の賦形性プラスチックリボンを上下のサイドエッジ部に封入したマスクの一例を示す斜視図、
図７（ｂ）は図７（ａ）のようなプラスチックリボンを封入したマスクの使用例を示す実施例図、
図８は本発明プラスチックリボンの賦形性及び賦形保持性を測定するための測定モデル図であって、
（ａ）は定められた寸法にカットされた本発明のプラスチックリボンの一例を示す斜視図；
（ｂ）は（ａ）のプラスチックリボンをループ状に湾曲させ上より一定の荷重をリボン曲部にかけたところの一例を示す斜視図；
（ｃ）は荷重を取り除いた状態での本発明プラスチックリボンの賦形角度の一例を示す斜視図；
（ｄ）は（ｃ）のプラチックリボンの賦形角度及び該リボンを放置した時の賦形角度及び該リボンの戻り角度の一例を示す概念図、
である。
尚、図中の符号のうち１は本発明のプラスチックリボン、２は接着剤層、３はペーパーバック、４はリール、５はマスク、６はリボン曲部、Ｒ_１は荷重を取り除いた状態でのリボンの折れ曲がり角度、Ｒ_２は放置後のリボンの折れ曲がり角度、Ｒは戻り角度、Ｌは荷重、ｌはリボン長を示す。
【００１０】
ここにおいて、本発明の賦形性プラスチックリボンは例えば図１（ａ）に示すごとき所望の長さの帯状物であって、要すれば図１（ｂ）に示すような片面に接着剤層２を設けたものでも良い。さらに、本発明の賦形性プラスチックリボン１は使用場所で所望の長さにカットして使えるように例えば図２に示すようなリール４に巻かれたものでも勿論よい。
【００１１】
また本発明の賦形性プラスチックリボン１は例えば図３（ａ）〜（ｆ）に示されるような所望の形状に折曲げたり癖付けしたりすることのできるプラスチックリボンである。詳しく説明すれば、本発明の賦形性プラスチックリボン１は、▲１▼ポリエステル系樹脂、ポリエーテル系樹脂、ポリオレフィン系樹脂、ポリオレフィン共重合体系樹脂、ポリ炭酸エステル系樹脂の１種又は２種以上からなる熱可塑性樹脂に、▲２▼６．０μｍ以下、さらに好ましくは３．０μｍ以下の平均粒子径の球状又は比表面積１．０ｍ^２／ｇ以上、さらに好ましくは１０ｍ^２／ｇ以上の鱗片形状の粒子形状を持つ珪酸、珪酸塩類、炭酸塩類、金属酸化物、金属硫化物、酸素酸塩、金属水酸化物の中から選択された１種又は２種以上の粉体物を主成分とする賦形付与剤を、好ましくは前記熱可塑性樹脂１００重量部に対して前記粉体物が１００〜１０重量部、さらに好ましくは５０〜２０重量部になるように配合した熱可塑性樹脂配合物を作製し、▲３▼次いでこの配合物を好ましくは全配合重量に対して９０重量％以上配合した熱可塑性樹脂配合物を帯状に溶融押出しした後、▲４▼該帯状の溶融物を前記熱可塑性樹脂のガラス転移温度以下に冷却固化し、▲５▼次いで延伸倍率１．５倍〜４．０倍に延伸して、▲６▼好ましくは、その曲部にその使用目的及び用途に応じた大きさの負荷を受けた場合に、その負荷を取り除かれた状態においても９０度以上の賦形度を示すような賦形性とそのものの放置後の復元率が１０％以下を示すような賦形保持性とを合わせ持つ、▲７▼好ましくは幅が２．０ｍｍ〜１００ｍｍ、厚さが幅の略１／２〜１／２００の寸法を有するリボン状に形成されたプラスチックリボン１である。
尚、本発明では、賦形性を表す賦形度は図８に示すように形成されたリボン状物１を所定の長さにカットして試料とし（図８（ａ））、この試料の両端を重ね合わすようにループ状に湾曲させた後、３０秒間該ループの上から所定の荷重を試料の曲部６にかけ（図８（ｂ））、次にこの荷重を取り除き、１分後のその状態での試料の折れ曲がり角度Ｒ_１を測定して得られ（図８（ｃ））、また賦形保持性を表す復元率は前記リボンの折れ曲がり角度（Ｒ_１）とさらにこのリボンをさらに１０分間放置した時の折れ曲がり角度（Ｒ_２）との差である戻り角度（Ｒ）を最初の折れ曲がり角度（Ｒ_１）で除した値で表す（図８（ｄ））。
【００１２】
本発明の賦形性プラスチックリボン１を構成する主要材料の一つである熱可塑性樹脂としては、▲１▼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、ポリテトラメチレンテレフタレート、ポリ１，４シクロヘキサンジメチレンテレフタレート等のポリアルキレンテレフタレート、ポリエチレン２，６ナフタレート、ポリテトラメチレン２，６ナフタレート等のポリアルキレンナフタレートに代表されるポリエステル系樹脂、▲２▼ポリメチルペンテン、ポリオキシベンゾイルエステル、ポリエーテルケトン、ポリエーテルエーテルケトンに代表されるポリエーテル系樹脂、▲３▼ポリエチレン、ポリプロピレンに代表されるポリオレフィン系樹脂、▲４▼ポリエチレンーαオレフィン共重合体、ポリプロピレンーαオレフィン共重合体、エチレンー酢酸ビニル共重合体に代表されるポリオレフィン共重合体系樹脂、▲５▼ポリカーボネートに代表されるポリ炭酸エステル系樹脂の１種又は２種以上からなる熱可塑性樹脂が好適に使用できる。
【００１３】
また本発明の賦形性プラスチックリボン１を構成するもう一つの主要材料である賦形付与剤としては、▲１▼ホワイトカーボンに代表される珪酸、▲２▼クレー、タルクに代表される珪酸塩類、▲３▼炭酸カルシウム、炭酸マグネシウムに代表される炭酸塩類、▲４▼酸化カルシウム、酸化マグネシウム、酸化亜鉛、酸化チタン、酸化鉄、酸化鉛に代表される金属酸化物、▲５▼水酸化アルミニウム、水酸化マグネシウム、水酸化カルシウムに代表される金属酸化物、▲６▼硫酸バリウム、ホウ酸亜鉛に代表される酸素酸塩、▲７▼硫化亜鉛に代表される金属水酸化物の中から選択された１種又は２種以上の粉体物を主成分とする賦形付与剤が好適に使用できる。かかる賦形付与剤を前記熱可塑性樹脂に一定量混入することにより常温において塑性変形の大きい樹脂体とすることができる。
【００１４】
さらに本発明では、賦形付与剤に用いられる上記粉体物は平均粒子径６．０μｍ以下、さらに好ましくは３．０μｍ以下の球状又は比表面積１．０ｍ^２／ｇ以上、さらに好ましくは１０ｍ^２／ｇ以上の鱗片形状の粒子形状を持つことが必要である。これは本発明における賦形性プラスチックリボンに繰り返しの賦形性を付与する上で、熱可塑性樹脂への上記粉体物の親和性・分散性がことの他重要で、平均粒子径６．０μｍ以下の球状又は比表面積１．０ｍ^２／ｇ以上の鱗片形状の粒子形状を有する粉体物は比表面積が大きく、熱可塑性樹脂への親和性・分散性が飛躍的に向上する結果、従来得られなかった繰り返し賦形に十分な耐性を示すことができるからである。
【００１５】
さらに又、賦形付与剤はその使用形態として熱可塑性樹脂への親和性・分散性をさらに一層高める手段として、ポリオレフィン系樹脂、ポリオレフィン共重合体系樹脂、スチレン系熱可塑性エラストマー、オレフィン系熱可塑性エラストマー、ウレタン系熱可塑性エラストマーの中から選択された１種又は２種以上のビヒクルポリマー１重量部に対して上記粉体物３重量部以上を混入したポリマーマスター形状として用いることができる。
【００１６】
賦形付与剤をポリマーマスター形状とする理由は一つには前述のごとく粉体物を直接熱可塑性樹脂に投入した場合に生じやすい粉体物の分散不良を防ぐためであり、熱可塑性樹脂と賦形付与剤の親和性を高めて繰り返しの賦形性を得んとするためであるが、もう一つには製造において粉体物を混入した場合の帯状に薄く均一に押出しすることの困難性を解決せんとするためである。
【００１７】
さらに賦形付与剤を形成するにあたっては熱可塑性樹脂と粉体物の親和性・分散性を高める目的であるいはポリマーマスターに用いるビヒクルポリマーへの粉体物の親和性・分散性を高める目的で、粉体物を熱可塑性樹脂又はビヒクルポリマーへ混合又は混入するに際して、▲１▼ステアリン酸、パルミチン酸等のＣ_１２以上の飽和脂肪酸及びそのエステルもしくはエーテル、▲２▼鉛、カドミウム、バリウム、亜鉛、カルシウム等の金属とステアリン酸、ラウリン酸、リシノール酸、ナフテン酸、２−エチルヘキソイン酸等の化合物とからなる金属石鹸類、▲３▼トリフェニルホスファイト、ジフェニルイソデシルホスファイト、フェニルイソデシルホスファイト、トリノニルフェニルホスファイト等の有機リン酸エステル、▲４▼カルナバワックス、キャンデリラワックス等の天然ワックス又はメチレン・ビスステアロアミド、エチレン・ビスステアロアミド、ポリエチレンオキサイド、低重合度ポリエチレン等の合成ワックスに代表されるワックス類、▲５▼石油系パラフィンワックス、ホワイトミネラルオイル（流動パラフィン）等の滑剤から選択された加工助剤を適宜選択して加えることができる。
【００１８】
次に選択した熱可塑性樹脂配合物中の熱可塑性樹脂と前記賦形性付与剤に含まれる粉体物との混合割合量について述べれば、両者の混合割合は重量比率で好ましくは１００／１００〜１００／１０、さらに好ましくは１００／５０〜１００／２０である。これは添加される賦形付与剤のうちの粉体物の量が熱可塑性樹脂量を超える場合、得られる帯状物は硬くもろい材質を有するものとなり、数回の折り曲げや癖付けで折れてしまうなど本発明が求める賦形性を帯状物に与えることが困難になるからである。また、添加される賦形付与剤のうちの粉体物の量が熱可塑性樹脂量の１０％未満である場合には、使用する熱可塑性樹脂の樹脂弾性を殺すことができず、折り曲げや癖付け時の復元率が大きく、これ又希望する賦形性能を得ることができないからである。
【００１９】
一方、熱可塑性樹脂配合物のうち主材料である熱可塑性樹脂と賦形付与剤の配合比率は９０重量％以上であることが好ましく、この主材料以外に添加される配合剤としては、群青、弁柄、酸化チタン、リトポン、亜鉛華、アルミニウム粉末、魚鱗等の無機系の着色剤、フタロシアニン系、ベンジジン系、モリブデン系、カーボンブラック等の有機系の着色剤、紫外線吸収剤、酸化防止剤、難燃剤、滑剤等が適宜選択されて用いられる。尚、これらの配合剤の添加に際しては必要により賦形付与剤と同様のポリマーマスターとして添加することも勿論できる。
【００２０】
さらに付け加えれば、本発明の賦形性プラスチックリボンにおいてはＪＩＳＣ３００４−２３に記載の難燃性を付与することもできるが、この場合の賦形付与剤としてはプラスチックリボンの自己消化性を高める目的から主として金属水酸化物や酸素酸塩から選択される粉体物を主成分とする賦形付与剤が用いられる。
【００２１】
次にこのようにして配合された熱可塑性樹脂配合物は、押出し機等を用いて帯状に溶融押出しされた後、配合物のガラス転移温度以下に冷却固化され、次いで例えば延伸温度９０℃〜１５０℃で延伸倍率１．５倍〜４．０倍に延伸され、要すれば熱セットされた後、リール等に巻き取られて、好ましくは幅が略２．０ｍｍ〜１００ｍｍ、厚さが幅の略１／２〜１／２００の寸法を有する帯状物が得られる。
【００２２】
ここにおいて帯状物の幅が２．０ｍｍ未満のものは厚さとの関係において良好なリボン形状を取りがたく、１００ｍｍを越える幅は使用目的からみて不必要である。また厚さは幅の略１／２〜１／２００の寸法程度が折り曲げ、癖付けといった使用上の点から最も使用しやすくかつリボン形状を保持しやすい。
【００２３】
また熱可塑性樹脂のガラス転移温度は示差走査熱量測定（ＪＩＳＫ７１２１／１９８７）で測定されるが、ガラス転移温度以下に冷却固化されないで延伸される場合は延伸が不十分になる恐れがあり、好ましくない。さらに延伸倍率が１．５倍未満では必要な張力をリボンに与えることができず、４．０倍を越えるとリボンが固くなりすぎ賦形性が劣るようになるので好ましくない。
【００２４】
一方このようにして得られた本発明のプラスチックリボン１は前述した図８（ａ）〜（ｄ）の方法で測定すると、その曲部に１ｋｇｆ／ｃｍ幅の負荷を受けた場合に、その負荷を取り除かれた状態において９０度以上の賦形度を示すような賦形性とそのものの放置後の復元率が１０％以下であるような賦形保持性とを有する。
【００２５】
このような性能は、実用上の賦形性能を見る上で極めて重要である。勿論その使用目的及び用途に応じてリボンの賦形力は調整されることが必要であるが、その曲部６にその使用目的及び用途に応じて必要な負荷を受けた場合に、その負荷を取り除かれた状態においても９０度以上折れ曲がっているようなリボンは、ある程度の力を加えなければ折り曲げたり、癖付けしたりすることができないが、一度、折り曲げたり、癖付けしたりしたものは、その使用状況において要求される賦形力よりも小さな力では容易に元に戻らないような性能を付与された、いわゆる一定の賦形固定力を有する実用上好ましい賦形性のリボンであって、任意の力で意図的に折り曲げたり、癖付けできるリボンであるということができる。
【００２６】
さらに又本発明のプラスチックリボンは、その使用目的及び用途に応じた荷重を取り外した状態での折れ曲がり角度Ｒ_１と該リボン１をさらに放置した時の折れ曲がり角度Ｒ_２の差である戻り角度Ｒを最初の折れ曲がり角度Ｒ_１で除した値で示される放置後の復元率が１０％以下であるような賦形保持性を有するが、これは復元率が１０％を越えるような賦形保持性を有するリボン１は“戻り”が大きすぎる結果、折り曲げや癖付けが甘くなり、賦形によるフィット性が悪くなるので好ましくないからである。
【００２７】
尚、図１〜図３に示すごとく本発明のプラスチックリボン１は金属等の芯材を内在させない一体成型物であるため、金属線が内在するために生じる製品トラブルや廃棄時の問題が全くない。さらに本発明のプラスチックリボン１は着色はもちろんのこと後染め加工のできる染色性を有し、被着体に合ったカラフルな色彩物を安価に提供できる。
【００２８】
次に図４〜図７に示す本発明のプラスチックリボンの使用例について説明すれば、図４〜図６は所望の箇所に本発明のプラスチックリボン１を取り付けて用いられるゴミなどを収納するペーパーバック３の用途事例であって、図４（ａ）は本発明のプラスチックリボン１がペーパーバック３の開口部付近に該部分の横幅よりやや長い目に取り付けられた例を示す図であって、該プラスチックリボン１の両端部を折り曲げることにより図４（ｂ）に見られるようにペーパーバック３の開口部付近を閉口して、内容物をこぼれないようにすることができるものである。
【００２９】
また図５（ａ）は本発明のプラスチックリボン１がペーパーバック３の開口部付近に該部分の横幅よりやや短めに取り付けられた例を示す図であって、該プラスチックリボン１の略中央部を折り曲げることにより図５（ｂ）に見られるようにペーパーバック３の開口部を常時開口したままの状態に保つことができるようにしたものである。
【００３０】
さらに図６（ａ）は本発明のプラスチックリボン１がペーパーバック３の幅方向の略中央部分に袋の深さ方向即ち縦方向に取り付けられた例を示す図であって、ペーパーバック３を二つ折りするに際して、該バック３の折線上に位置する箇所からプラスチックリボン１を折り曲げて図６（ｂ）に見られるようにペーパーバック３を常時二つ折りされた状態に保つことができるようにしたものである。
【００３１】
また図７（ａ）は本発明プラスチックリボン１が上下に縫い込まれたマスクの例を示す図であって、また図７（ｂ）に示すように該マスク５は使用時において使用者の鼻梁の形状に沿うように癖付けできかつこの状態が使用中ずっと保つことができるようにした賦形性に優れるマスクである。
【００３２】
【実施例】
表１に示すごとき配合の熱可塑性樹脂配合物を用いて表２のごとき製造条件で溶融押出−冷却−延伸して、表３の寸法を有する賦形性プラスチックリボンを得た。またこのプラスチックリボンの性能を調べたところ、表４に示すごとき賦形性、賦形保持性などに優れた性能を有していた。さらに図４及び図５の様に上記プラスチックリボンを開口部付近に取り付けたペーパーバックと図７の様に上記の賦形性プラスチックリボンを上下に縫い込んだマスクとを作成し、実用テストを行い、表５のごとき結果を得た。
【００３３】
【表１】

【００３４】
【表２】

【００３５】
【表３】

【００３６】
【表４】

【００３７】
【表５】

【００３８】
表３，表４，表５の結果に示されるように、本発明のプラスチックリボン並びらに該リボンを取り付けた成型物は容易に折り曲げや癖付けの出来る賦形性及び賦形保持性に優れたものであった。
【００３９】
【発明の効果】
本発明のプラスチックリボン並びに該リボンを取り付けた成型物は上述のように構成されているので、以下のような効果を奏することができる：
▲１▼ 賦形にあたって一定の賦形力を必要とするように設計されているので賦形力が強くちょっとした外部からの押圧や引圧で癖付けや折り曲げが解除されてしまう恐れがない；
▲２▼ 賦形性に優れるため癖付けや折り曲げが自在でしかもその形状を長時間にわたって保持できる；
▲３▼ 難燃性を付与できる；
▲４▼ 金属線を芯材として用いないプラスチック一体物であるため、金属線に起因する製品トラブルや廃棄時の問題がない；
▲５▼ 着色や染色が自由でカラフルな製品に仕上げることができる；
▲６▼ 安価である。
【図面の簡単な説明】
【図１】（ａ）は賦形性プラスチックリボンの一例を示す斜視図。
（ｂ）は賦形性プラスチックリボンの他例を示す斜視図。
【図２】ロール巻きされた賦形性プラスチックリボンを示す斜視図。
【図３】（ａ）は一端を折り曲げた賦形性プラスチックリボンの賦形状態の一例を示す斜視図。
（ｂ）は両端を折り曲げた賦形性プラスチックリボンの賦形状態の一例を示す斜視図。
（ｃ）は略中央部を癖付けした賦形性プラスチックリボンの賦形状態の一例を示す斜視図。
（ｄ）は略中央部を略４５度に折り曲げた賦形性プラスチックリボンの賦形状態の一例を示す斜視図。
（ｅ）は略中央部を略１８０度に折りたたんだ賦形性プラスチックリボンの賦形状態の一例を示す斜視図。
（ｆ）は多段に折り曲げた賦形性プラスチックリボンの賦形状態の一例を示す斜視図。
【図４】（ａ）は賦形性プラスチックリボンを横方向に開口部付近に取り付けたペーパーバックの一例を示す斜視図。
（ｂ）は取り付けた賦形性プラスチックリボンを折り曲げて開口部付近を閉口したペーパーバックの一例を示す斜視図。
【図５】（ａ）は賦形性プラスチックリボンを横方向に開口部付近に取り付けたペーパーバックの他例を示す斜視図。
（ｂ）は取り付けたプラスチックリボンを癖付けして開口部を開口した状態に維持したペーパーバックの一例を示す斜視図。
【図６】（ａ）は賦形性プラスチックリボンを縦方向に腹部付近に取り付けたペーパーバックの一例を示す斜視図。
（ｂ）は取り付けた賦形性プラスチックリボンをペーパーバックごと折り曲げてペーパーバックの折り曲げ部を固定した状態に維持したペーパーバックの一例を示す斜視図。
【図７】（ａ）は賦形性プラスチックリボンを上下のサイド部に封入したマスクの一例を示す斜視図。
（ｂ）は賦形性プラスチックリボンを上下のサイド端部に封入したマスクの使用例を示す斜視図。
【図８】（ａ）は賦形性プラスチックリボンの賦形性及び賦形保持性を測定するために準備される試料の斜視図。
（ｂ）は図８（ａ）の試料をループ状に湾曲させ上より試料の曲部にかかるように荷重をかけた状態の試料の斜視図。
（ｃ）は荷重を取り除いた状態での試料の賦形角度の一例を示す斜視図。
（ｄ）は図８（ｃ）の試料の賦形角度及びその試料をさらに放置した時の賦形角度より試料の戻り角度を示す概念図。
【符号の説明】
１本発明の賦形性プラスチックリボン
２接着剤層
３ペーパーバック
４リール
５マスク
６リボン（試料）の曲部
Ｒ_１荷重を取り除いた状態での折れ曲がり角度
Ｒ_２放置後の折れ曲がり角度
Ｒ戻り角度
Ｌ荷重
ｌリボン長[0001]
BACKGROUND OF THE INVENTION
The present invention can be used for, for example, a paper bag or a plastic bag, and can be freely bent and fixed from an opening / closing opening of the opening or a desired portion, or used for a sanitary mask, and the brazing along the nose is applied to the mask. The present invention relates to a shapeable plastic ribbon that can be freely attached and attached to a desired part of a molded product and can easily shape the attachment part of the molded product into a desired shape, and a molded product to which the ribbon is attached.
[0002]
[Prior art]
Conventionally, when a thin or soft bag, for example, a plastic garbage bag, is opened for use, the opening is stuck due to static electricity or the like, and has been opened by being held by hand. In addition, after storing garbage etc., when closing for disposal, the vicinity of the opening is tied with a rubber band or the upper part of the bag is twisted to close the mouth in a complicated manner.
[0003]
In addition, as a way of using the bag, it is often the case that the bag is opened and attached to the bed or the side of the desk to store filth and garbage, but if the bag is thin or soft, keep the bag open well. Therefore, there is an inconvenience that it is necessary to store filth and garbage after opening the bag.
[0004]
As another usage, for example, the bag may be folded and carried depending on the amount of the contents, but even in such a case, a thin bag or a soft bag cannot be fixed well, while holding the folded portion by hand. There were problems such as having to carry.
[0005]
On the other hand, a mask without a core material made only of gauze cloth or the like has drawbacks such as a gap formed in the nose bridge when the mask is worn, or the mask cannot be fixed with the nose bridge and slips off.
[0006]
In order to solve these problems, bags and masks with a plastic band (trade name, manufactured by Kyowa Co., Ltd.) with a wire as the core are on the market, but they are not necessary because they use metal as the core. It has been pointed out that the metal has to be removed when the used bag is discarded or when the used mask is discarded.
[0007]
[Problems to be solved by the invention]
The object of the present invention is to obtain a plastic ribbon excellent in formability comprising a single thermoplastic resin compound that does not use a metal core, and further, a molded product that can be easily shaped into a desired shape by attaching the ribbon. It is intended to solve the problem of eliminating inconvenience during use and transportation of the molded product. That is, the present invention obtains a plastic ribbon excellent in formability comprising a single thermoplastic resin compound without using a metal core, and obtains a molded product having a desired shaping ability by attaching the ribbon. For the purpose.
[0008]
[Means for Solving the Problems]
The present invention provides an average particle size of 6.0 μm to one or more thermoplastic resins selected from polyester resins, polyether resins, polyolefin resins, polyolefin copolymer resins, and polycarbonate ester resins. Selected from silicic acid, silicates, carbonates, metal oxides, metal sulfides, oxyacid salts, metal hydroxides having the following spherical shape or scale-like particle shape with a specific surface area of 1.0 m ² / g or more After extruding a thermoplastic resin compound containing a shaping agent mainly composed of one or two or more powders into a belt shape, the solution is cooled and solidified below the glass transition temperature of the thermoplastic resin, Next, it is a shapeable plastic ribbon characterized by being formed into a ribbon shape having shapeability and shape retention by being stretched at a draw ratio of 1.5 times to 4.0 times.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, although the present invention is explained in full detail based on a drawing, the present invention is not limited to these.
FIG. 1A is a perspective view showing an example of a shapeable plastic ribbon of the present invention,
FIG.1 (b) is a perspective view which shows the other example of the shapeable plastic ribbon of this invention which provided the adhesive agent on the single side | surface,
FIG. 2 is a perspective view of the shapeable plastic ribbon of the present invention showing an example of a shape wound on a reel,
FIG. 3 is a perspective view showing an example of shaping of the shapeable plastic ribbon of the present invention, wherein (a) is a perspective view showing an example in which one end of the ribbon is bent;
(B) is a perspective view showing an example in which both ends of the ribbon are bent;
(C) is a perspective view showing an example in which a substantially central portion of the ribbon is brazed;
(D) is a perspective view showing an example in which a substantially central portion of the ribbon is bent;
(E) is a perspective view showing an example of folding a ribbon from a substantially central portion;
(F) is a perspective view showing an example in which the ribbon is bent in multiple stages;
FIG. 4A is a perspective view showing an example of a paperback in which the shapeable plastic ribbon of the present invention is attached in the lateral direction in the vicinity of the opening,
FIG. 4B is a perspective view showing an example of a paperback in which the plastic ribbon attached as shown in FIG.
FIG. 5 (a) is a perspective view showing another example of a paperback in which the shapeable plastic ribbon of the present invention is attached in the lateral direction in the vicinity of the opening,
FIG. 5B is a perspective view showing an example of a paperback in which the plastic ribbon portion attached as shown in FIG. 5A is bent and the opening is kept open.
FIG. 6A is a perspective view showing an example of a paperback in which the shapeable plastic ribbon of the present invention is attached in the vertical direction near the abdomen,
FIG. 6B is a perspective view showing an example of a paperback in which the plastic ribbon portion attached as shown in FIG.
FIG. 7A is a perspective view showing an example of a mask in which the shapeable plastic ribbon of the present invention is enclosed in upper and lower side edge portions,
FIG.7 (b) is the Example figure which shows the usage example of the mask which enclosed the plastic ribbon like Fig.7 (a),
FIG. 8 is a measurement model diagram for measuring the shapeability and shape retention of the plastic ribbon of the present invention,
(A) is a perspective view which shows an example of the plastic ribbon of this invention cut by the defined dimension;
(B) is a perspective view showing an example where the plastic ribbon of (a) is bent in a loop shape and a constant load is applied to the bent portion of the ribbon;
(C) is a perspective view showing an example of a shaping angle of the plastic ribbon of the present invention in a state where a load is removed;
(D) is a conceptual diagram showing an example of the shaping angle of the plastic ribbon of (c), the shaping angle when the ribbon is left, and the return angle of the ribbon;
It is.
Incidentally, the plastic ribbon of 1 the invention the sign in the drawing, 2 is an adhesive layer, 3 is paperback, 4 reels 5 mask, 6 ribbon bent portion, while R ₁ is the removal of the load bending angle of the ribbon, R ₂ is bent angle of the ribbon after standing, R represents the return angle, L is the load, l denotes the ribbon length.
[0010]
Here, the shapeable plastic ribbon of the present invention is a strip having a desired length as shown in FIG. 1 (a), for example, and if necessary, the adhesive layer 2 on one side as shown in FIG. 1 (b). It may be provided. Furthermore, the shapeable plastic ribbon 1 of the present invention may of course be wound on a reel 4 as shown in FIG. 2 so that it can be cut into a desired length at the place of use.
[0011]
The shapeable plastic ribbon 1 of the present invention is a plastic ribbon that can be folded or brazed into a desired shape as shown in FIGS. More specifically, the shapeable plastic ribbon 1 of the present invention includes (1) one or more of polyester resins, polyether resins, polyolefin resins, polyolefin copolymer resins, and polycarbonate ester resins. (2) Spherical shape having an average particle diameter of 6.0 μm or less, more preferably 3.0 μm or less, or a specific surface area of 1.0 m ² / g or more, more preferably 10 m ² / g or more. Mainly composed of one or more powders selected from silicic acid, silicates, carbonates, metal oxides, metal sulfides, oxyacid salts, and metal hydroxides having the following particle shape A thermoplastic resin composition in which a shape-imparting agent is blended so that the powder is preferably 100 to 10 parts by weight, more preferably 50 to 20 parts by weight, with respect to 100 parts by weight of the thermoplastic resin. (3) Next, after the thermoplastic resin blend in which the blend is blended preferably 90% by weight or more with respect to the total blended weight is melt-extruded into a strip shape, (4) the strip-shaped melt is added to the above-mentioned melt. It is cooled and solidified below the glass transition temperature of the thermoplastic resin, (5) and then stretched to a stretch ratio of 1.5 to 4.0 times, and (6) preferably, the curved portion depends on its intended use and application. When a load of a certain size is received, even in a state in which the load is removed, the shapeability that shows a shaping degree of 90 degrees or more and the restoration rate after being left as it is are 10% or less. (7) A plastic ribbon 1 formed in a ribbon shape having a width of 2.0 mm to 100 mm and a thickness of approximately 1/2 to 1/200 of the width. .
In the present invention, the forming degree representing the formability is obtained by cutting the ribbon-like material 1 formed as shown in FIG. 8 into a predetermined length (FIG. 8A). After curving into a loop shape so that both ends overlap, a predetermined load is applied to the curved portion 6 of the sample for 30 seconds (FIG. 8 (b)), then this load is removed and 1 minute later. It is obtained by measuring the bending angle R ₁ of the sample in that state (FIG. 8 (c)), and the restoration rate indicating the shape retention is 10% of the ribbon bending angle (R ₁ ) and the ribbon. The return angle (R) that is the difference from the bending angle (R ₂ ) when left for a minute is divided by the first bending angle (R ₁ ) (FIG. 8 (d)).
[0012]
The thermoplastic resin which is one of the main materials constituting the shapeable plastic ribbon 1 of the present invention includes (1) polyethylene terephthalate, polybutylene terephthalate, polytetramethylene terephthalate,

poly

1,4 cyclohexane dimethylene terephthalate, etc. Polyester resins typified by polyalkylene naphthalates such as polyalkylene terephthalate,

polyethylene

2,6 naphthalate,

polytetramethylene

2,6 naphthalate, (2) polymethylpentene, polyoxybenzoyl ester, polyether ketone, polyether ether Polyether resins represented by ketones, (3) Polyethylene resins represented by polyethylene and polypropylene, (4) Polyethylene-α-olefin copolymers, polypropylene-α-olefin copolymers A thermoplastic resin comprising one or more of a polymer, a polyolefin copolymer resin typified by an ethylene-vinyl acetate copolymer, and a polycarbonate ester resin typified by (5) polycarbonate can be suitably used.
[0013]
Further, as the shape-imparting agent which is another main material constituting the shapeable plastic ribbon 1 of the present invention, (1) silicic acid represented by white carbon, (2) silicates represented by clay and talc. (3) Carbonates represented by calcium carbonate and magnesium carbonate, (4) Metal oxides represented by calcium oxide, magnesium oxide, zinc oxide, titanium oxide, iron oxide and lead oxide, (5) Aluminum hydroxide , Metal hydroxides represented by magnesium hydroxide and calcium hydroxide, (6) barium sulfate, oxyacid salts represented by zinc borate, and (7) metal hydroxides represented by zinc sulfide The shaping agent which has the 1 type, or 2 or more types of powdered material as a main component can be used conveniently. By mixing a certain amount of such a shape-imparting agent into the thermoplastic resin, a resin body having a large plastic deformation at room temperature can be obtained.
[0014]
Furthermore, in the present invention, the powder used for the shape-imparting agent has a mean particle size of 6.0 μm or less, more preferably 3.0 μm or less, or a specific surface area of 1.0 m ² / g or more, more preferably 10 m ^2. It is necessary to have a scaly particle shape of at least / g. This is important in addition to the affinity and dispersibility of the powdered material to the thermoplastic resin in order to give the repetitive shapeability to the shapeable plastic ribbon in the present invention. The average particle size is 6.0 μm. The powders having the following spherical shape or scale-like particle shape with a specific surface area of 1.0 m ² / g or more have a large specific surface area, and as a result, the affinity and dispersibility to the thermoplastic resin are greatly improved. This is because sufficient resistance to repeated shaping that has not been achieved can be exhibited.
[0015]
Furthermore, the shape-imparting agent is used as a means for further enhancing the affinity / dispersibility to the thermoplastic resin as a form of use, such as polyolefin resin, polyolefin copolymer resin, styrene thermoplastic elastomer, olefin thermoplastic elastomer. In addition, it can be used as a polymer master shape in which 3 parts by weight or more of the powder is mixed with 1 part by weight of one or two or more kinds of vehicle polymers selected from urethane-based thermoplastic elastomers.
[0016]
The reason why the shape-imparting agent is made into the polymer master shape is that, as mentioned above, to prevent poor dispersion of the powder material that is likely to occur when the powder material is directly added to the thermoplastic resin, This is to increase the affinity of the shape-imparting agent so as to obtain repetitive shapeability, but the other is that it is difficult to extrude thinly and uniformly into a strip when powder is mixed in the manufacturing process. This is to solve sex.
[0017]
Furthermore, in forming the shape-imparting agent, for the purpose of increasing the affinity / dispersibility of the thermoplastic resin and the powder, or for the purpose of increasing the affinity / dispersibility of the powder to the vehicle polymer used for the polymer master, in the powder was mixing or mixed into a thermoplastic resin or vehicle polymers, ▲ 1 ▼ stearate, C ₁₂ or higher saturated fatty acids and their esters or ethers such as palmitic acid, ▲ 2 ▼ lead, cadmium, barium, zinc, Metal soaps composed of metals such as calcium and compounds such as stearic acid, lauric acid, ricinoleic acid, naphthenic acid, 2-ethylhexoic acid, (3) triphenyl phosphite, diphenylisodecyl phosphite, phenylisodecyl phosphite , Organophosphates such as trinonylphenyl phosphite, (4) carna Natural waxes such as wax, candelilla wax or waxes represented by synthetic waxes such as methylene bisstearoamide, ethylene bisstearoamide, polyethylene oxide, low-polymerization polyethylene, (5) petroleum-based paraffin wax, A processing aid selected from a lubricant such as white mineral oil (liquid paraffin) can be appropriately selected and added.
[0018]
Next, the mixing ratio between the thermoplastic resin in the selected thermoplastic resin blend and the powder contained in the shape-imparting agent will be described. The mixing ratio of the two is preferably 100/100 to 100% by weight. 100/10, more preferably 100/50 to 100/20. This is because, when the amount of the powder-formation additive added exceeds the amount of the thermoplastic resin, the obtained band-like material has a hard and brittle material, and it will be broken by several times of bending and brazing. This is because it becomes difficult to impart the shapeability required by the present invention to the strip. In addition, when the amount of the powder-formation agent to be added is less than 10% of the amount of the thermoplastic resin, the resin elasticity of the thermoplastic resin to be used cannot be killed, and bending or wrinkling is not possible. This is because the restoration rate at the time of attaching is large and the desired shaping performance cannot be obtained.
[0019]
On the other hand, the blending ratio of the thermoplastic resin as a main material and the shaping agent in the thermoplastic resin blend is preferably 90% by weight or more, and as a blending agent added in addition to this main material, ultramarine, Inorganic colorants such as petals, titanium oxide, lithopone, zinc white, aluminum powder, fish scales, organic colorants such as phthalocyanine, benzidine, molybdenum and carbon black, UV absorbers, antioxidants, Flame retardants, lubricants and the like are appropriately selected and used. In addition, when adding these compounding agents, as a matter of course, it can be added as a polymer master similar to the shape-imparting agent.
[0020]
In addition, in the formable plastic ribbon of the present invention, the flame retardancy described in JISC3004-23 can be imparted. However, in this case, the shape imparting agent is intended to increase the self-digestibility of the plastic ribbon. An excipienting agent mainly composed of a powder selected from metal hydroxides and oxyacid salts is used.
[0021]
Next, the blended thermoplastic resin composition is melt-extruded in a strip shape using an extruder or the like, then cooled and solidified below the glass transition temperature of the composition, and then, for example, a stretching temperature of 90 ° C. to 150 ° C. The film is stretched at a stretching ratio of 1.5 to 4.0 times at 0 ° C. and, if necessary, is heat-set and then wound on a reel or the like, preferably having a width of about 2.0 mm to 100 mm and a thickness of width. A strip having a dimension of approximately 1/2 to 1/200 is obtained.
[0022]
Here, when the width of the strip is less than 2.0 mm, it is difficult to obtain a good ribbon shape in relation to the thickness, and a width exceeding 100 mm is unnecessary from the viewpoint of use. In addition, the thickness is about ½ to 1/200 of the width and is most easily used from the point of use such as bending and brazing, and the ribbon shape is easily maintained.
[0023]
The glass transition temperature of the thermoplastic resin is measured by differential scanning calorimetry (JISK7121 / 1987). However, when the glass resin is stretched without being cooled and solidified below the glass transition temperature, the stretching may be insufficient. . Further, if the draw ratio is less than 1.5 times, the necessary tension cannot be applied to the ribbon, and if it exceeds 4.0 times, the ribbon becomes too hard and the formability becomes inferior.
[0024]
On the other hand, when the plastic ribbon 1 of the present invention thus obtained is measured by the method shown in FIGS. 8 (a) to 8 (d), when the curved portion receives a load of 1 kgf / cm width, the load It has a shapeability that shows a shape degree of 90 degrees or more in a state where the is removed, and a shape retention property that the restoration rate after being left is 10% or less.
[0025]
Such performance is extremely important in view of practical shaping performance. Of course, the shaping force of the ribbon needs to be adjusted according to the purpose and use of the ribbon. However, when the curved portion 6 receives a load necessary according to the purpose and use of the ribbon, the load is applied. Ribbons that are bent 90 degrees or more even in the removed state cannot be folded or brazed unless a certain amount of force is applied, but once folded or brazed, A ribbon having a practically preferable formability having a so-called fixed shaping fixing force, which is given a performance that cannot be easily restored by a force smaller than the shaping force required in the usage situation, It can be said that the ribbon can be intentionally bent or brazed with an arbitrary force.
[0026]
Further plastic ribbon of the present invention also, its use is the difference of bending angle R ₂ when bending angle R ₁ and further allowed to stand the ribbon 1 in a state in which removal of the load in accordance with the purpose and use return angle R The shape retention is such that the restoration rate after being left as indicated by the value divided by the first bending angle R ₁ is 10% or less, but this is the shape retention that the restoration rate exceeds 10%. This is because the ribbon 1 having the “return” is too unfavorable because bending and brazing become unsatisfactory and the fitting property due to shaping deteriorates.
[0027]
As shown in FIGS. 1 to 3, the plastic ribbon 1 of the present invention is an integrally molded product that does not contain a core material such as metal, so there are no product troubles and disposal problems caused by the presence of metal wires. . Furthermore, the plastic ribbon 1 of the present invention has a dyeability capable of being dyed as well as colored, and can provide a colorful color suitable for the adherend at a low cost.
[0028]
Next, an example of use of the plastic ribbon of the present invention shown in FIGS. 4 to 7 will be described. FIGS. 4 to 6 show a paper bag for storing dust and the like used by attaching the plastic ribbon 1 of the present invention to a desired location. 4 (a) is a diagram showing an example in which the plastic ribbon 1 of the present invention is attached in the vicinity of the opening of the paper back 3 in an eye slightly longer than the width of the portion, By bending both ends of the plastic ribbon 1, the vicinity of the opening of the paper back 3 can be closed as shown in FIG. 4B, so that the contents can be prevented from spilling.
[0029]
FIG. 5A is a view showing an example in which the plastic ribbon 1 of the present invention is attached in the vicinity of the opening of the paperback 3 slightly shorter than the width of the portion, and the substantially central portion of the plastic ribbon 1 is shown. By bending, as shown in FIG. 5B, the opening of the paperback 3 can be kept open at all times.
[0030]
Further, FIG. 6A is a view showing an example in which the plastic ribbon 1 of the present invention is attached to a substantially central portion in the width direction of the paper back 3 in the depth direction of the bag, that is, in the vertical direction. When folding, the plastic ribbon 1 is bent from the position located on the fold line of the back 3 so that the paper back 3 can always be folded in two as shown in FIG. 6B. It is.
[0031]
FIG. 7 (a) is a view showing an example of a mask in which the plastic ribbon 1 of the present invention is sewn up and down, and as shown in FIG. 7 (b), the mask 5 is used by the user's nasal bridge. It is a mask with excellent formability that can be brazed to conform to the shape of the mask and kept in this state throughout use.
[0032]
【Example】
Using a thermoplastic resin compound having the composition shown in Table 1, melt extrusion-cooling-stretching was carried out under the production conditions as shown in Table 2 to obtain a shapeable plastic ribbon having the dimensions shown in Table 3. Further, when the performance of this plastic ribbon was examined, it had excellent properties such as formability and shape retention as shown in Table 4. Further, a paperback with the plastic ribbon attached near the opening as shown in FIGS. 4 and 5 and a mask with the shapeable plastic ribbon sewn up and down as shown in FIG. The results shown in Table 5 were obtained.
[0033]
[Table 1]

[0034]
[Table 2]

[0035]
[Table 3]

[0036]
[Table 4]

[0037]
[Table 5]

[0038]
As shown in the results of Table 3, Table 4, and Table 5, the molded product in which the ribbon is attached to the plastic ribbon of the present invention is excellent in shapeability and shape retention that can be easily folded and brazed. It was.
[0039]
【The invention's effect】
Since the plastic ribbon of the present invention and the molded product attached with the ribbon are configured as described above, the following effects can be obtained:
(1) Since it is designed to require a certain shaping force during shaping, the shaping force is strong and there is no fear that the brazing or bending will be released by a slight external pressure or pulling force;
(2) Excellent shapeability, so it can be freely brazed and bent and its shape can be maintained for a long time;
(3) Can impart flame retardancy;
(4) Since it is a single-piece plastic that does not use a metal wire as its core, there are no product problems or disposal problems caused by the metal wire;
▲ 5 ▼ It can be finished into a colorful product with free coloring and dyeing;
(6) Inexpensive.
[Brief description of the drawings]
FIG. 1A is a perspective view showing an example of a shapeable plastic ribbon.
(B) is a perspective view which shows the other example of a shapeable plastic ribbon.
FIG. 2 is a perspective view showing a rollable shaped plastic ribbon.
FIG. 3A is a perspective view showing an example of a shaped plastic ribbon having one end bent;
(B) is a perspective view which shows an example of the shaping state of the shapeable plastic ribbon which bent both ends.
(C) is a perspective view which shows an example of the shaping state of the shapeable plastic ribbon which brazed the substantially center part.
(D) is a perspective view which shows an example of the shaping state of the shapeable plastic ribbon which bent the substantially center part at about 45 degree | times.
(E) is a perspective view which shows an example of the shaping state of the shapeable plastic ribbon which folded the substantially center part at about 180 degree | times.
(F) is a perspective view which shows an example of the shaping state of the shapeable plastic ribbon bent in multiple steps.
FIG. 4A is a perspective view showing an example of a paperback in which a shapeable plastic ribbon is attached in the lateral direction in the vicinity of the opening.
(B) is a perspective view which shows an example of the paperback which bent the shapeable plastic ribbon which attached and closed the opening vicinity.
FIG. 5A is a perspective view showing another example of a paperback in which a shapeable plastic ribbon is attached in the lateral direction near the opening.
(B) is a perspective view which shows an example of the paperback which brazed the attached plastic ribbon and maintained the state which opened the opening part.
FIG. 6A is a perspective view showing an example of a paperback in which a shapeable plastic ribbon is attached in the vertical direction in the vicinity of the abdomen.
(B) is a perspective view which shows an example of the paper back which maintained the state which bent the attached shapeable plastic ribbon with the paper back, and fixed the bending part of the paper back.
FIG. 7A is a perspective view showing an example of a mask in which a shapeable plastic ribbon is enclosed in upper and lower side portions.
(B) is a perspective view which shows the usage example of the mask which enclosed the shapeable plastic ribbon in the upper and lower side edge part.
FIG. 8A is a perspective view of a sample prepared for measuring the shapeability and shape retention of a shapeable plastic ribbon.
FIG. 9B is a perspective view of the sample in a state in which the sample of FIG.
(C) is a perspective view which shows an example of the shaping angle of the sample in the state which removed the load.
FIG. 9D is a conceptual diagram showing a sample return angle based on the shaping angle of the sample in FIG. 8C and the shaping angle when the sample is further left untreated.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Formable plastic ribbon of this invention 2 Adhesive layer 3 Paper back 4 Reel 5 Mask 6 Curved part R of ribbon (sample) ₁ Bending angle R after removing the load ₂ Bending angle R after being left R Return angle L Load l Ribbon length

Claims

One or two or more thermoplastic resins selected from polyester resins, polyether resins, polyolefin resins, polyolefin copolymer resins, and polycarbonate ester resins are spherical with an average particle size of 6.0 μm or less. Or one selected from silicic acid, silicates, carbonates, metal oxides, metal sulfides, oxyacid salts, and metal hydroxides having a scale-like particle shape with a specific surface area of 1.0 m ² / g or more Or, after extruding a thermoplastic resin blend containing a shape-imparting agent composed mainly of two or more kinds of powders into a strip, it is cooled and solidified below the glass transition temperature of the thermoplastic resin, and then the draw ratio A formable plastic ribbon characterized by being formed into a ribbon shape having a shapeability and a shape retention property by stretching 1.5 times to 4.0 times.

1 part by weight of one or two or more types of vehicle polymers selected from among polyolefin resins, polyolefin copolymer resins, styrene thermoplastic elastomers, olefin thermoplastic elastomers, and urethane thermoplastic elastomers. The shapeable plastic ribbon according to claim 1, wherein the shapeable plastic ribbon is a polymer master-shaped shape imparting agent mixed with 3 parts by weight or more of powder.

Shaping imparting agent ▲ 1 ▼ C ₁₂ or higher saturated fatty acids and their esters or ethers, ▲ 2 ▼ metal soaps, ▲ 3 ▼ organophosphates, ▲ 4 ▼ natural or synthetic waxes, ▲ 5 ▼ in the lubricants The shapeable plastic ribbon according to claim 1 or 2, wherein the shapeable plastic ribbon is formed by adding one or more processing aids selected from the above.

The mixing ratio of the thermoplastic resin in the thermoplastic resin blend and the powder contained in the shaping agent is such that the weight ratio is 100/100 to 100/10. The shapeable plastic ribbon according to any one of claims 1 to 3.

The formability according to any one of claims 1 to 4, wherein the thermoplastic resin composition is a thermoplastic resin composition containing 90% by weight or more of a main component composed of a thermoplastic resin and a shaping agent. Plastic ribbon.

The shapeable plastic ribbon according to any one of claims 1 to 5, wherein the formed shapeable plastic ribbon is a plastic ribbon having flame retardancy described in JISC3004-23.

The formable plastic ribbon according to any one of claims 1 to 6, wherein the formed formable plastic ribbon is a plastic ribbon having dyeability capable of post-dyeing.

The formed shapeable plastic ribbon is a strip having a width of 2.0 mm to 100 mm and a thickness of 1/2 to 1/200 of the width. The shapeable plastic ribbon described in 1.

When the formed plastic ribbon is subjected to a load on its curved portion, the shapeability that shows a forming degree of 90 degrees or more even when the load is removed, and the restoration after leaving it as it is The shapeable plastic ribbon according to any one of claims 1 to 8, wherein the shapeable plastic ribbon has a shape-retaining property such that the rate is 10% or less.

A molded product in which the shapeable plastic ribbon according to any one of claims 1 to 9 is attached to a desired part, and the attachment part can be easily shaped into a desired shape, and the shaped shape is maintained. Molded product with a shapeable plastic ribbon, characterized by being a molded product.