JPH0631869A - Production of elastic composite body - Google Patents
Production of elastic composite bodyInfo
- Publication number
- JPH0631869A JPH0631869A JP4210647A JP21064792A JPH0631869A JP H0631869 A JPH0631869 A JP H0631869A JP 4210647 A JP4210647 A JP 4210647A JP 21064792 A JP21064792 A JP 21064792A JP H0631869 A JPH0631869 A JP H0631869A
- Authority
- JP
- Japan
- Prior art keywords
- film
- stretched
- composite
- base material
- elastomer film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、伸縮自在の弾性複合体
の製造方法に関し、伸縮性等の各種機能を備え、従っ
て、ヘルメット内帽子のギャザー、腕バンド、包帯止
め、オムツ等の各種用途に使用出来る弾性複合体の製造
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a stretchable elastic composite, which has various functions such as elasticity, and therefore has various uses such as gathers for helmet inner hats, arm bands, bandages, diapers and the like. The present invention relates to a method for producing an elastic composite that can be used for.
【０００２】[0002]
【従来の技術】伸張されていない弾性部材を、この弾性
部材よりも伸張性が低い基材へ不連続に結合して、複合
体を形成し、その複合体を伸張し、その後該複合体を緩
和させることによる弾性複合体の製造方法が提案されて
いる（特開昭５９−５９９０１号公報）。Unstretched elastic members are discontinuously bonded to a substrate that is less stretchable than the elastic members to form a composite, the composite is stretched, and then the composite is stretched. A method for producing an elastic composite by relaxing it has been proposed (Japanese Patent Laid-Open No. 59-59901).
【０００３】[0003]
【発明が解決しょうとする課題】しかし、この方法は、
フイルムと基材を不連続に結合した後、伸張を行なうも
ので、特に当該伸張が横方向の場合は、一般に当該複合
体の両端をクリップでつかんで行なう方法であるため、
両端にロスが発生し易く、、かつ、装置コストも高いも
のに付いてしまうという欠点があった。また、この方法
では、結合後の伸張のためには、基材も伸張できるもの
であるなどという制限を受けてしまう。本発明はかかる
従来技術の有する欠点を解消することのできる技術を提
供することを目的としたものである。However, this method is
After the film and the substrate are bonded discontinuously, the film is stretched. Especially when the stretching is in the lateral direction, it is a method of gripping both ends of the composite with clips,
There is a drawback that loss tends to occur at both ends and that the device cost is high. Further, in this method, there is a limitation that the base material can also be stretched for the purpose of stretching after bonding. The present invention aims to provide a technique capable of solving the drawbacks of the conventional technique.
【０００４】[0004]
【課題を解決するための手段】本発明は、エラストマー
フイルムをＭＤ方向に延伸後、当該延伸フイルムの少な
くとも一面と、前記エラストマーフイルムよりも伸張性
が低い基材とを、ＴＤ方向に、適宜間隔を置いて線状に
接着させ、次いで、当該複合体を加熱して前記エラスト
マーフイルムを熱収縮させることを特徴とする伸縮自在
の弾性複合体の製造方法に係るものである。According to the present invention, after stretching an elastomer film in the MD direction, at least one surface of the stretched film and a substrate having a lower stretchability than the elastomer film are appropriately spaced in the TD direction. The present invention relates to a method for producing a stretchable elastic composite body, characterized in that the elastic film is heat-shrinked by heating the composite film.
【０００５】[0005]
【実施例】次に、本発明の実施例を、適宜図面を参照し
つつ説明する。図１（Ａ）は、本発明の実施例工程の一
例を示す説明図で、同図にて、１は駆動用モータ、２は
軸駆動ベルト、３はエラストマーフイルム繰り出し部、
４は延伸槽、５は基材繰り出し部、６は熱シール部、７
は熱シール用ロール、８はスライド装置、９は熱風循環
式オーブン、１０は弾性複合体巻取機である。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 (A) is an explanatory view showing an example of a process of an embodiment of the present invention, in which 1 is a drive motor, 2 is a shaft drive belt, 3 is an elastomer film feeding part,
4 is a drawing tank, 5 is a base material feeding part, 6 is a heat sealing part, 7
Is a heat sealing roll, 8 is a slide device, 9 is a hot air circulation type oven, and 10 is an elastic composite winder.
【０００６】図１（Ａ）に示すように、先ず、エラスト
マーフイルム２０を、ＭＤ（Ｍａｃｈｉｎｅ Ｄｉｒｅ
ｃｔｉｏｎ）方向に、延伸する。当該エラストマーフイ
ルム２０としては、天然ゴムあるいは合成ゴム系からな
るエラストマーフイルムであってもよいが、エチレンー
プロピレンージェン共重合体ゴム（ＥＰＤＭ）及びエチ
レンー酢酸ビニル共重合体（ＥＶＡ）との組成物からな
るものが、伸縮性、薄膜化、低温収縮性、印刷性等のう
えから好ましい。当該ＥＰＤＭ及びＥＶＡとからなるエ
ラストマーフイルムの製造は、ＥＰＤＭ３０〜７０重量
％及び酢酸ビニル含有量５〜３０重量％のＥＶＡ７０〜
３０重量％、さらにはこの組成物にポリエチレンを３０
重量％迄配合した組成物を１６０℃以下の温度で混練
し、空冷インフレーション法によりブローアップ比２．
０〜５．０により成膜することにより得られる。このよ
うなフイルムの製造方法としては特開平３ー１２８９４
５号公報に開示の方法が適用できる。延伸は、例えば延
伸槽４を使用し、適当な延伸温度、好ましくは、常温か
ら５０℃の延伸温度で、フイルムのＭＤ方向（縦方向）
に、好ましくは、１．２倍〜４．０倍延伸する。尚、上
記空冷インフレーション法による製膜においてＴＤ方向
よりもＭＤ方向の配向を大にしておくならば、基材との
複合前に前もってＭＤ方向への延伸は不要となる。As shown in FIG. 1 (A), first, the elastomer film 20 is placed in an MD (Machine Dire).
The film is stretched in the direction. The elastomer film 20 may be an elastomer film made of natural rubber or synthetic rubber, but is a composition of ethylene-propylene-propylene copolymer rubber (EPDM) and ethylene-vinyl acetate copolymer (EVA). Is preferably from the viewpoint of stretchability, thinning, low temperature shrinkability, printability, and the like. The production of the elastomer film composed of the EPDM and EVA is carried out by using EVA 70-having an EPDM of 30 to 70% by weight and a vinyl acetate content of 5 to 30% by weight.
30% by weight, and further 30% polyethylene in this composition
The composition blended up to wt% is kneaded at a temperature of 160 ° C. or less, and blow-up ratio of 2. by air cooling inflation method.
It is obtained by forming a film with 0 to 5.0. As a method for producing such a film, Japanese Patent Laid-Open No. 3-12894
The method disclosed in Japanese Patent No. 5 can be applied. Stretching is performed using, for example, a stretching tank 4 at an appropriate stretching temperature, preferably from room temperature to 50 ° C., in the MD direction (longitudinal direction) of the film.
In particular, it is preferably stretched 1.2 times to 4.0 times. If the orientation in the MD direction is made larger than the TD direction in the film formation by the air-cooled inflation method, the stretching in the MD direction is not necessary before the compounding with the base material.
【０００７】次いで、当該延伸フイルム２１と、当該エ
ラストマーフイルムよりも伸張性が低い基材例えば紙、
プラスチックフイルム、織布、不織布、金属箔等の基材
２２とを、線、点線等の線状に接着する。当該線状接着
には、図１（Ｂ）および図１（Ｃ）で例示するような凹
凸を有する熱シールロール７を使用する。当該熱シール
ロール７は、例えば、その凸部の幅（Ｗ1）が１．０〜
５．０ｍｍで、その凹部の幅（Ｗ2）が３．０〜１２．
０ｍｍに、また、その高さ（Ｈ）が２．０ｍｍに構成さ
れる。当該熱シールロール７をスライド装置８で適宜ス
ライドさせて、これら延伸フイルム２１と基材２２と
を、ＴＤ（Ｔｒａｎｓｖｅｒｓｅ Ｄｉｒｅｃｔｉｏ
ｎ）方向に、適宜間隔を置いて線状に接着させる。尚、
こうした熱シールによる方法の他に、ホットメルト接着
剤を線状に塗布して行なうホットメルト法やドライラミ
ネート法や基材によってはウェツトラミネート法等によ
ってもよい。Next, the stretched film 21 and a substrate having a lower extensibility than the elastomeric film, such as paper,
A base material 22 such as a plastic film, a woven cloth, a non-woven cloth or a metal foil is adhered in a line shape such as a line or a dotted line. For the linear bonding, a heat seal roll 7 having irregularities as illustrated in FIGS. 1 (B) and 1 (C) is used. The heat-sealing roll 7 has, for example, a width (W 1 ) of its convex portion of 1.0 to
The width (W 2 ) of the recess is 3.0 to 12.
The height (H) is set to 0 mm and 2.0 mm. The heat-sealing roll 7 is appropriately slid by a slide device 8 so that the stretched film 21 and the base material 22 are moved to TD (Transverse Direction).
In the n) direction, they are linearly bonded at appropriate intervals. still,
In addition to such a heat-sealing method, a hot-melt method in which a hot-melt adhesive is linearly applied, a dry laminating method, or a wet laminating method depending on a base material may be used.
【０００８】基材２２におけるプラスチックフイルムの
例としては、ポリプロピレン、ポリエチレンなどのポリ
オレフインフイルムが挙げられる。基材２２は本発明弾
性複合体の用途に応じて適宜選択可能で、当該基材２２
は伸縮性を具備することを要求されない。後で述べるよ
うに、基材２２は自在に伸縮できるとともに、基材２２
の有している機能を弾性複合体に付与することができ、
基材２２が紙のときには、通気性、吸水性を付与し、基
材２２が不織布のときには、通気性、透湿性を付与し、
さらに、基材２２がプラスチックフイルムのときには、
強度を向上させる。Examples of the plastic film for the substrate 22 include polyolefin films such as polypropylene and polyethylene. The base material 22 can be appropriately selected according to the application of the elastic composite of the present invention.
Are not required to have stretchability. As will be described later, the base material 22 can be freely expanded and contracted, and
It is possible to give the elastic composite the function of
When the base material 22 is paper, it imparts air permeability and water absorption, and when the base material 22 is a nonwoven fabric, it imparts air permeability and moisture permeability,
Further, when the substrate 22 is a plastic film,
Improve strength.
【０００９】得られた複合体２３は、次いで、所定サイ
ズにスリット後、熱風循環式のオーブン９中を適宜温度
下例えば７０〜９０℃で通過させ、当該複合体２３を構
成するエラストマー延伸フイルム２１のみを熱収縮させ
る。熱収縮は、例えば１０％〜１００％の範囲内で行な
われる。当該フイルムは、その長手方向に熱収縮し、一
方、紙、プラスチックフイルム、織布、不織布、金属箔
等の基材２２は殆ど収縮しないため、図２に示すよう
に、基材２２が蛇腹状となった弾性複合体２４を得る。
上記では、蛇腹状の弾性複合体２４を連続的に生産する
方法を示したが、熱シール後そのまま複合フイルム２３
を一旦巻き取り、別工程で熱風循環式のオーブン９中を
通過させてもよく、この方法は、ブロッキングしにくい
こと、嵩高さ防止などの面で有効である。The obtained composite 23 is then slit into a predetermined size, and then passed through a hot air circulation type oven 9 at an appropriate temperature, for example, 70 to 90 ° C., to stretch the elastomer film 21 constituting the composite 23. Only heat shrink. The heat shrinkage is performed in the range of 10% to 100%, for example. The film is heat-shrinked in the longitudinal direction, while the base material 22 such as paper, plastic film, woven cloth, non-woven cloth, and metal foil is hardly shrunk. Therefore, as shown in FIG. The elastic composite 24 is obtained.
In the above, the method of continuously producing the bellows-like elastic composite 24 has been described.
May be once wound and passed through a hot air circulation type oven 9 in a separate step. This method is effective in terms of preventing blocking and preventing bulkiness.
【００１０】次に、本発明の実施例を示す。 実施例１．エチレンープロピレンージエン共重合体（エ
クソン化学社製、商品名Ｖ３７０８）５４重量％と、エ
チレン酢酸ビニル共重合体（日本ユニカー社製、商品名
ＤＱＤＪー３２６９）３６重量％、及び低密度ポリエチ
レン（日本ユニカー社製、商品名ＤＦＤー０１４８）１
０重量％とを含有する熱可塑性エラストマー組成物から
なる２０μｍ厚みのフイルム（ブローアップ比５．０の
空冷法インフレーションフイルム）を５０℃で、フイル
ムの長手方向（ＭＤ方向）に２．０倍延伸してなるフイ
ルム（以下、フイルムＡという）と、市販の、無機物を
充填した３５μｍ厚みの直鎖状低密度ポリエチレンフイ
ルム（以下、フイルムＢという）とを重ね合わせた後、
図１に示すような装置を用いて、フイルムの長手方向と
直角の方向に一定間隔で、ライン速度１０ｍ／ｍｉｎで
熱シールし複合フイルムを得た。この時の熱シール温度
は１４０℃であった。得られた複合フイルムを熱風循環
式のオーブン中温度８０℃で通過させた所、フイルムＡ
が長手方向に約１／２程度収縮し、フイルムＢは収縮し
ないため図２に示すような蛇腹状の弾性複合体が得られ
た。Next, examples of the present invention will be described. Example 1. 54% by weight of ethylene-propylene-diene copolymer (manufactured by Exxon Chemical Co., trade name V3708), 36% by weight of ethylene-vinyl acetate copolymer (manufactured by Nippon Unicar Co., trade name DQDJ-3269), and low-density polyethylene ( Made by Nippon Unicar, product name DFD-0148) 1
A 20 μm-thick film (an air-cooled inflation film having a blow-up ratio of 5.0) made of a thermoplastic elastomer composition containing 0% by weight is stretched at 50 ° C. in the longitudinal direction (MD direction) of the film by 2.0 times. After superimposing a film (hereinafter, referred to as a film A) obtained by the method and a commercially available linear low-density polyethylene film (hereinafter, referred to as a film B) having a thickness of 35 μm and filled with an inorganic substance,
Using the apparatus as shown in FIG. 1, heat sealing was performed at a line speed of 10 m / min at regular intervals in the direction perpendicular to the longitudinal direction of the film to obtain a composite film. The heat sealing temperature at this time was 140 ° C. The obtained composite film was passed through a hot air circulation type oven at a temperature of 80 ° C. to obtain a film A.
Was contracted in the longitudinal direction by about 1/2, and the film B was not contracted, so that a bellows-like elastic composite as shown in FIG. 2 was obtained.
【００１１】実施例２．実施例１で使用のフイルムＡ
と、無機物（白石カルシウム社製、商品名ライトンー
Ａ）を１５重量％添加したエチレン酢酸ビニル共重合体
樹脂（日本ユニカー社製、商品名ＤＱＤＪ１８６８）を
用いてインフレーション製膜した３５μｍ厚みのフイル
ム（以下、フイルムＣという）とを使用し、このフイル
ムＣとフイルムＡとで上記実施例１と同様な方法で複合
フイルムを得た後、複合フイルムを同様に熱風循環式の
オーブン中温度７０℃で通過さ蛇腹状の弾性複合体を得
た。Embodiment 2. Film A used in Example 1
And an ethylene-vinyl acetate copolymer resin (manufactured by Nippon Unicar Co., Ltd., trade name DQDJ1868) containing 15% by weight of an inorganic substance (manufactured by Shiraishi Calcium Co., Ltd. trade name Ryton-A), and a film having a thickness of 35 μm (hereinafter , Film C), and a composite film obtained by the same method as in Example 1 using the film C and the film A, and then the composite film is passed through a hot air circulating oven at a temperature of 70 ° C. in the same manner. A bellows-like elastic composite was obtained.
【００１２】実施例３．基材にティシュペーパー（十條
キンバリー社製、商品名ＪＫワイパー テイッシュー１
００）を用いて、この基材（Ｄ）と実施例１で使用のフ
イルムＡとで、上記実施例１と同様の方法で複合体を得
た後、該複合体を同様に熱風循環式のオーブン中温度８
０℃で通過させ、蛇腹状の弾性複合体を得た。Embodiment 3. Tissue paper (made by Tojo Kimberley, product name JK wiper tissue 1)
No. 00) was used to obtain a composite using this substrate (D) and the film A used in Example 1 in the same manner as in Example 1 above, and the composite was then subjected to the same hot air circulation method. Oven temperature 8
The mixture was passed at 0 ° C. to obtain a bellows-like elastic composite.
【００１３】実施例４．基材として、縦横に若干伸縮性
を有する目付け３５ｇ／ｍ2のポリプロピレン製不織布
を用い、この基材（Ｅ）と実施例１で使用のフイルムＡ
とで、上記実施例１と同様な方法で複合体を得た後、該
複合体を、同様に熱風循環式のオーブン中、温度８５℃
で通過させ、蛇腹状の弾性複合体を得た。Embodiment 4. As the base material, a polypropylene non-woven fabric having a basis weight of 35 g / m 2 which is slightly stretchable in the length and width is used, and this base material (E) and the film A used in Example 1 are used.
After obtaining a composite in the same manner as in Example 1 above, the composite was placed in a hot air circulation oven at a temperature of 85 ° C.
To obtain a bellows-like elastic composite.
【００１４】上記各実施例で得られた蛇腹状の弾性複合
体の物性値の評価結果を表１に示す。尚、比較のために
実施例１において、縦方向に延伸しないエラストマーフ
イルムを用いた以外は同様にして複合フイルムを得た。
この複合フイルムを５０℃において、縦方向に伸張を行
ったが、伸張が充分に出来ず得られた複合体の伸縮性が
比較的に小さく弾性複合体としては不充分であった。
（比較例１）又、比較のために実施例３において、縦方
向に延伸しないエラストマーフイルムを用いた以外は同
様にして複合フイルムを得た。この複合フイルムを５０
℃において、縦方向に伸張を行ったところ、テイッシュ
ペーパーが切断して蛇腹状の弾性複合体が得られなかっ
た。表１における物性値の測定方法は次の通りである。 （ 1）厚み／目付（μｍ／ｇ／ｍ2）；ＪＩＳ−Ｚ８１
０５ （ 2）破断強度（ｇ／25ｍｍ）；ＪＩＳ−Ｌ１０９６ （ 3）破断伸度（％）；ＪＩＳ−Ｌ１０９６ （ 4）10％伸長時強度／歪（ｇ／２５ｍｍ2／％）；Ｊ
ＩＳ−Ｌ１０９６ （ 5）30％伸長時強度／歪（ｇ／２５ｍｍ2／％）；Ｊ
ＩＳ−Ｌ１０９６ （ 6）50％伸長時強度／歪（ｇ／２５ｍｍ2／％）；Ｊ
ＩＳ−Ｌ１０９６ （ 7）100 ％伸長時強度／歪（ｇ／２５ｍｍ2／％）；
ＪＩＳ−Ｌ１０９６ （ 8）通気性；ＪＩＳ−Ｐ８１１７ （ 9）透湿性；ＪＩＳ−Ｚ０２０８Table 1 shows the evaluation results of the physical properties of the bellows-like elastic composites obtained in each of the above examples. For comparison, a composite film was obtained in the same manner as in Example 1 except that an elastomer film that was not stretched in the machine direction was used.
This composite film was stretched in the machine direction at 50 ° C. However, it could not be stretched sufficiently, and the elasticity of the obtained composite was relatively small, and it was insufficient as an elastic composite.
(Comparative Example 1) For comparison, a composite film was obtained in the same manner as in Example 3 except that an elastomer film which was not stretched in the machine direction was used. 50 of this composite film
When stretched in the machine direction at 0 ° C., the tissue paper was cut and a bellows-like elastic composite was not obtained. The methods for measuring the physical property values in Table 1 are as follows. (1) Thickness / Basis weight (μm / g / m 2 ); JIS-Z81
05 (2) breaking strength (g / 25 mm); JIS-L1096 (3) breaking elongation (%); JIS-L1096 (4) 10% strength at elongation / strain (g / 25 mm 2 /%); J
IS-L1096 (5) Strength / strain at 30% elongation (g / 25 mm 2 /%); J
IS-L1096 (6) Strength / strain at 50% elongation (g / 25 mm 2 /%); J
IS-L1096 (7) Strength / strain at 100% elongation (g / 25 mm 2 /%);
JIS-L1096 (8) Breathability; JIS-P8117 (9) Moisture permeability; JIS-Z0208
【００１５】[0015]
【表１】 [Table 1]
【００１６】表１に示す実施例の結果などから本発明品
の特徴を述べると次の通りである。 （ 1）実施例１の弾性複合体は、伸縮機能とバルキーな
感触を合わせ持っている。 （ 2）初期伸長時の引張り強度はエラストマーフイルム
（Ａ）と同等で或る程度の時点までは弱い力で伸びてい
く。３０乃至５０％以上（１００％）伸長した場合、伸
長強度は、張り合わされる基材の特徴が表われ、この場
合はフイルム（Ｂ）の強度が出現してくる。フイルム
（Ｂ）は、３０％以上に引張っていくと、伸びに比例し
て歪が大きくなり、もとに戻らなくなるが、実施例１の
弾性複合体は、フイルム（Ａ）が一定間隔で張り合わさ
れているので、応力を取り去ると、もとの形に戻って歪
が残らない。すなわち、当該複合体は、伸長の度合いに
比例して強度が向上し、復元性があり、歪みも小さい。 （ 3）フイルム（Ａ）は縦一軸方向に延伸を行っている
ので、このまま巻き取ると巻締りが大きく、繰り出し時
にブロッキングで問題が起こる。これに対し、実施例１
ではそのような問題は発生しない。 （ 4）フイルム（Ａ）、（Ｂ）は、基材そのものとして
は、通気性、透湿性は、殆んどないが、実施例１に示す
ように、本発明によれば、通気性、透湿性を付与し、隙
間から水蒸気やガスを通過できるようになる。 （ 5）実施例２の弾性複合体も、上記各項に記載したと
同様の特徴、機能を有する。 （ 6）また、上記実施例３、および実施例４から見た特
徴について述べる。実施例３、および４の弾性複合体
は、基材が各々テイッシュペーパ、若干伸縮性を有する
ＰＰのスパンレース不織布である。弾性複合体としての
一般的機能においては、上記とほぼ同様の利点を有す
る。それに加えて基材の機能に基づき次のような利点が
ある。尚、基材の機能が異なることに応じてそれぞれの
特徴を出すことができる。例えば、実施例３の基材はパ
ルプなので吸水性があり、これに基づき、ヘルメットな
どの内部において汚れ防止のためにかぶっているペーパ
ー帽子の縁バンド等に使用出来、各種利点を備えた弾性
複合体となすことができる。また、実施例４の基材は、
柔らかい感じの不織布なので、人肌にマッチするため、
腕バンド（包帯止め）、オムツ等の各種ギャザーに使用
出来、同様に各種利点を備えた弾性複合体となすことが
できる。 尚、本発明においては、延伸エラストマーフイルムフイ
ルムの両面と、当該エラストマーフイルムよりも伸張性
が低い基材とを、ＴＤ方向に、適宜間隔を置いて線状に
接着させてもよいし、また、これらフイルムや基材を複
数使用するなど適宜変更が可能である。The characteristics of the product of the present invention will be described from the results of the examples shown in Table 1 and the like. (1) The elastic composite of Example 1 has both a stretch function and a bulky feel. (2) The tensile strength at the initial elongation is the same as that of the elastomer film (A), and the elastic film is stretched with a weak force up to a certain point. When stretched by 30 to 50% or more (100%), the stretch strength shows the characteristics of the substrates to be laminated, and in this case, the strength of the film (B) appears. When the film (B) is stretched to 30% or more, the strain increases in proportion to the elongation and cannot be restored. However, in the elastic composite of Example 1, the film (A) is stuck at a constant interval. Therefore, when the stress is removed, the original shape is restored and no strain remains. That is, the composite has improved strength in proportion to the degree of elongation, has resilience, and has small strain. (3) Since the film (A) is stretched in the longitudinal uniaxial direction, if it is wound up as it is, the winding tightness is large and a problem occurs due to blocking at the time of unwinding. On the other hand, Example 1
Then such a problem does not occur. (4) Films (A) and (B) have almost no air permeability and moisture permeability as the substrate itself, but as shown in Example 1, according to the present invention, air permeability and moisture permeability are It imparts wettability and allows water vapor and gas to pass through the gaps. (5) The elastic composite body of Example 2 also has the same features and functions as those described in the above items. (6) Further, the features seen from the third and fourth embodiments will be described. The elastic composites of Examples 3 and 4 are made of spunlaced nonwoven fabric made of PP having a base material of tissue paper and slightly stretchable property, respectively. In the general function as an elastic composite, it has advantages similar to the above. In addition, there are the following advantages based on the function of the base material. It should be noted that each feature can be brought out according to the different functions of the base material. For example, since the base material of Example 3 is pulp, it has water absorbency, and based on this, it can be used as an edge band of a paper hat that is worn inside a helmet or the like to prevent dirt, and has various advantages. Can be a body. The base material of Example 4 was
Since it is a soft non-woven fabric, it matches human skin,
It can be used for various gathers such as arm bands (bandage stoppers) and diapers, and can also be made into an elastic composite body having various advantages as well. In the present invention, both surfaces of the stretched elastomer film and a substrate having a lower stretchability than the elastomer film may be linearly bonded in the TD direction at appropriate intervals, or It is possible to make appropriate changes such as using a plurality of these films and substrates.
【００１７】[0017]
【発明の効果】以上本発明によれば、次のような利点が
ある。 （１）従来の伸張されていない弾性部材をこの弾性部材
よりも伸張性が低い基材へ不連続に結合して、複合体を
形成し、その複合体を伸張し、その後該複合体を緩和さ
せることによる弾性複合体を得る方法では、クリップで
両端をつかんで伸長を行なうなど、ロスが大きく、か
つ、装置コストも高いものに付いてしまい、また、この
方法では、線接着後の伸長のためには、基材も延伸でき
るものであるという制限を受けてしまう。これに対し、
本発明によれば、伸長フイルムの熱収縮性を利用するた
めロスが出ないし、本発明では基材を限定する必要がな
い。 （２）本発明によれば、伸縮機能とバルキーな感触を合
わせ持った弾性複合体を得ることができる。この弾性複
合体は、貼合される基材に関係なく、共通して伸縮性と
ボリューム感を備えている。 （３）従来の単独基材では、３０％以上に引張っていく
と、伸びに比例して歪が大きくなり、もとに戻らなくな
るが、本発明の弾性複合体は、応力を取り去ると、もと
の形に戻って、しかも、歪が残らず、 100％伸長時に
も、強度が大で、歪が小さい。 （４）オレフィン系フイルム単独フイルムでは、基材そ
のものに、通気性、透湿性は、殆んどないが、本発明に
よれば、通気性、透湿性を付与し、隙間から水蒸気やガ
スを通過できるようになる。 本発明の弾性複合体は、自由に伸長でき、包装部材とし
ても使用することができる。軽量物や小型製品の包装に
適用できるだけでなく、重量物や大型製品の包装にも適
用でき、自由自在のコントロールが可能となる。それ
故、伸縮性フイルムの単独使用の場合の重量物やかさ高
物に対する降伏強度の低下を防ぐことができ、また、高
温時の引張強度の低下という問題をも解消できる。As described above, the present invention has the following advantages. (1) A conventional non-stretched elastic member is discontinuously bonded to a substrate having lower stretchability than the elastic member to form a composite, the composite is stretched, and then the composite is relaxed. In the method of obtaining an elastic composite by doing so, the clip is used to hold both ends to perform expansion, which results in a loss that is large and the device cost is high. Therefore, there is a limitation that the substrate can be stretched. In contrast,
According to the present invention, since the heat shrinkability of the stretched film is used, no loss occurs, and the present invention does not need to limit the substrate. (2) According to the present invention, it is possible to obtain an elastic composite body having both a stretch function and a bulky feel. This elastic composite has elasticity and volume feeling in common regardless of the substrate to be laminated. (3) When the conventional single base material is stretched to 30% or more, the strain increases in proportion to the elongation and cannot be restored. However, when the elastic composite of the present invention removes the stress, It returns to the shape of, and there is no distortion, and the strength is large and the distortion is small even at 100% elongation. (4) In the olefin film alone film, the substrate itself has almost no air permeability and moisture permeability, but according to the present invention, air permeability and moisture permeability are imparted, and water vapor or gas passes through the gap. become able to. The elastic composite of the present invention can be freely stretched and can also be used as a packaging member. Not only can it be applied to the packaging of lightweight or small products, but it can also be applied to the packaging of heavy or large products, allowing for flexible control. Therefore, when the stretchable film is used alone, it is possible to prevent a decrease in yield strength with respect to a heavy object or a bulky object, and it is also possible to solve the problem of a decrease in tensile strength at high temperature.
【図１】（Ａ）は本発明の実施例工程を説明する説明、
（Ｂ）は本発明に使用されるシールロールの構成図、
（Ｃ）は同ロールの詳細図FIG. 1 (A) is an explanation for explaining steps of an embodiment of the present invention,
(B) is a block diagram of the seal roll used in the present invention,
(C) is a detailed view of the roll
【図２】本発明の実施例を示す弾性複合体構成図FIG. 2 is a structural diagram of an elastic composite body showing an embodiment of the present invention.
２０・・・エラストマーフイルム、 ２１・・・延伸エラストマーフイルム、 ２２・・・基材 ２３・・・複合体 ２４・・・弾性複合体 20 ... Elastomer film, 21 ... Stretched elastomer film, 22 ... Substrate 23 ... Composite 24 ... Elastic composite
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ａ６１Ｆ 13/00 ３５５ Ｇ 7108−4Ｃ Ｂ３２Ｂ 25/04 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 5 Identification code Office reference number FI Technical display location A61F 13/00 355 G 7108-4C B32B 25/04
Claims (1)
後、当該延伸フイルムの少なくとも一面と、前記エラス
トマーフイルムよりも伸張性が低い基材とを、ＴＤ方向
に、適宜間隔を置いて線状に接着させ、次いで、当該複
合体を加熱して前記エラストマーフイルムを熱収縮させ
ることを特徴とする伸縮自在の弾性複合体の製造方法。1. An elastomer film is stretched in the MD direction, and then at least one surface of the stretched film and a substrate having a lower extensibility than the elastomer film are linearly adhered in the TD direction at appropriate intervals. Next, a method for producing a stretchable elastic composite, which comprises heating the composite to heat-shrink the elastomer film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4210647A JPH0631869A (en) | 1992-07-16 | 1992-07-16 | Production of elastic composite body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4210647A JPH0631869A (en) | 1992-07-16 | 1992-07-16 | Production of elastic composite body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0631869A true JPH0631869A (en) | 1994-02-08 |
Family
ID=16592775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4210647A Pending JPH0631869A (en) | 1992-07-16 | 1992-07-16 | Production of elastic composite body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631869A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0688665A2 (en) | 1994-06-20 | 1995-12-27 | Nippon Petrochemicals Company, Limited | Composite material with controlled elasticity |
| US5591784A (en) * | 1994-06-17 | 1997-01-07 | Three Bond Co., Ltd. | Curing of fiber-reinforced composite structures |
| WO2002098660A1 (en) * | 2001-05-31 | 2002-12-12 | Kimberly-Clark Worldwide, Inc. | Structured material and method of producing the same |
| JP2007111503A (en) * | 2005-09-21 | 2007-05-10 | Daio Paper Corp | Absorbent article and method for manufacturing the same |
| US7820001B2 (en) | 2005-12-15 | 2010-10-26 | Kimberly-Clark Worldwide, Inc. | Latent elastic laminates and methods of making latent elastic laminates |
| US8003553B2 (en) | 2005-12-15 | 2011-08-23 | Kimberly-Clark Worldwide, Inc. | Elastic-powered shrink laminate |
-
1992
- 1992-07-16 JP JP4210647A patent/JPH0631869A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5591784A (en) * | 1994-06-17 | 1997-01-07 | Three Bond Co., Ltd. | Curing of fiber-reinforced composite structures |
| EP0688665A2 (en) | 1994-06-20 | 1995-12-27 | Nippon Petrochemicals Company, Limited | Composite material with controlled elasticity |
| WO2002098660A1 (en) * | 2001-05-31 | 2002-12-12 | Kimberly-Clark Worldwide, Inc. | Structured material and method of producing the same |
| GB2392644A (en) * | 2001-05-31 | 2004-03-10 | Kimberly Clark Co | Structured material and method of producing the same |
| GB2392644B (en) * | 2001-05-31 | 2005-06-29 | Kimberly Clark Co | Structured material and method of producing the same |
| US7045029B2 (en) | 2001-05-31 | 2006-05-16 | Kimberly-Clark Worldwide, Inc. | Structured material and method of producing the same |
| JP2007111503A (en) * | 2005-09-21 | 2007-05-10 | Daio Paper Corp | Absorbent article and method for manufacturing the same |
| US7820001B2 (en) | 2005-12-15 | 2010-10-26 | Kimberly-Clark Worldwide, Inc. | Latent elastic laminates and methods of making latent elastic laminates |
| US8003553B2 (en) | 2005-12-15 | 2011-08-23 | Kimberly-Clark Worldwide, Inc. | Elastic-powered shrink laminate |
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