JP2892106B2 - Elastic composite sheet - Google Patents
Elastic composite sheetInfo
- Publication number
- JP2892106B2 JP2892106B2 JP2135344A JP13534490A JP2892106B2 JP 2892106 B2 JP2892106 B2 JP 2892106B2 JP 2135344 A JP2135344 A JP 2135344A JP 13534490 A JP13534490 A JP 13534490A JP 2892106 B2 JP2892106 B2 JP 2892106B2
- Authority
- JP
- Japan
- Prior art keywords
- composite sheet
- stretchable
- polyurethane elastic
- nonwoven fabric
- bare
- 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.)
- Expired - Lifetime
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は伸縮性複合シートに関するものである。さら
に詳しく述べるならば、本発明は使い捨ておむつの開口
部、又は腰側部に有用な伸縮性複合シートに関するもの
である。The present invention relates to a stretchable composite sheet. More specifically, the present invention relates to a stretchable composite sheet useful for the opening of a disposable diaper or the waist side.
〔従来の技術〕 従来、使い捨ておむつに用いられる不織布に伸縮性を
付与した。例えば特開昭58−180601号公報に開示されて
いるおむつは、不織布等から成るトップシートと、プラ
スチックフィルム等から成るバックシートとの間にゴム
糸を接着している。しかしながら、このおむつでは、プ
ラスチックフィルムが使用されているため、蒸れるとい
う欠点があった。[Prior Art] Conventionally, a nonwoven fabric used for disposable diapers has been given elasticity. For example, in a diaper disclosed in Japanese Patent Application Laid-Open No. 58-180601, a rubber thread is bonded between a top sheet made of a nonwoven fabric or the like and a back sheet made of a plastic film or the like. However, since this diaper uses a plastic film, it has a drawback of becoming stuffy.
さらに特開昭62−28456号公報に開示されている伸縮
性複合シートは、弾性体が弾性繊維から成るウエブであ
るため、伸縮性能を適宜に設定することができず乳幼児
それぞれにぴったりあう使い捨ておむつの伸縮部を得る
ことはできなかった。Furthermore, since the elastic composite sheet disclosed in JP-A-62-28456 is a web in which the elastic body is made of elastic fibers, the elasticity cannot be appropriately set, and the disposable diaper fits each of the infants. Could not be obtained.
本発明は、従来のおむつに用いられる伸縮性複合シー
トの上記した欠点を克服し、乳幼児それぞれにぴったり
合い、尿を漏らさず、蒸れない伸縮性複合シートを得る
ことを目的とする。An object of the present invention is to overcome the above-mentioned drawbacks of a stretchable composite sheet used for a conventional diaper, to obtain a stretchable composite sheet that fits each infant, does not leak urine, and does not stuffy.
本発明は、ひき揃えられたベアのポリウレタン弾性糸
からなる中間層と非伸縮性不織布とが該中間層の表裏両
面に熱圧着により一体化された複合シートであって、ポ
リウレタン弾性糸の密度が１〜10本/cmであり、該非伸
縮性不織布がベアのポリウレタン弾性糸の配列方向に引
き寄せられたギャザーが形成されていることを特徴とす
る使い捨ておむつ用伸縮性複合シート、である。The present invention is a composite sheet in which an intermediate layer made of aligned bare polyurethane elastic yarn and a non-stretchable nonwoven fabric are integrated by thermocompression bonding on both front and back surfaces of the intermediate layer, and the density of the polyurethane elastic yarn is A stretchable composite sheet for disposable diapers, wherein a gather is formed in which the non-stretchable nonwoven fabric is drawn in a direction in which bare polyurethane elastic yarns are arranged.
ここで、本発明に使用するベアのポリウレタン弾性糸
とはナイロン糸等が被覆されてないものをいう。太さと
しては100デニールから500デニールが好ましい。Here, the bare polyurethane elastic yarn used in the present invention means a non-coated nylon yarn or the like. The thickness is preferably from 100 denier to 500 denier.
本発明に使用するベアのポリウレタン弾性糸の密度１
〜10本/cmである。１本/cm未満では、フィット性に欠
け、濡れが阻止できなく、また、ギャザーのピッチが大
きくなりすぎ、外観も悪くなる。10本/cmを越えると伸
長回復力が大きすぎ不適である。Density of bare polyurethane elastic yarn used in the present invention 1
~ 10 / cm. If it is less than 1 line / cm, the fitting property is poor and wetting cannot be prevented, and the gather pitch becomes too large and the appearance deteriorates. If it exceeds 10 fibers / cm, the stretch recovery force is too large and is not suitable.
本発明の伸縮性複合シートでは乳幼児の月齢、年齢、
体型、男女別に要求される伸縮部の伸度、伸長応力、伸
長回復力に応じてベアのポリウレタン弾性糸の太さ、本
数を適宜設定し、ひき揃えるときの伸長率を変えること
であらゆる伸度、伸長応力、伸長回復力に対応できる。In the elastic composite sheet of the present invention, the age of the infant, the age,
Set the thickness and number of bare polyurethane elastic yarns appropriately according to the elongation, elongation stress, and elongation recovery force of the elastic part required for each body type and gender, and change the elongation rate when aligning to any elongation , Elongation stress and elongation recovery force.
本発明でいう非伸縮性不織布とは、ポリエステル、ナ
イロン、ポリプロピレン、アクリル等の合成繊維及びレ
ーヨン、綿等セルロースで構成されているものをいう。The non-stretchable nonwoven fabric referred to in the present invention refers to a nonwoven fabric composed of synthetic fibers such as polyester, nylon, polypropylene, and acrylic, and cellulose such as rayon and cotton.
本発明の伸縮性複合シートはポリウレタン弾性糸から
なる中間層の表裏両面に熱圧着する非伸縮性不織布が同
一素材でも、異なる素材でも、少くとも一方が熱圧着性
のものであればよい。The stretchable composite sheet of the present invention may be made of the same or different non-stretchable non-woven fabrics that are thermocompression bonded to the front and back surfaces of the intermediate layer made of polyurethane elastic yarn, as long as at least one of them is thermocompression-bondable.
本発明の伸縮性複合シートはベアのポリウレタン弾性
糸と非伸縮性不織布とを、熱圧着により一体化する。熱
圧着は部分圧着でも全面圧着でもよい。熱圧着に必要な
温度としては、使用する非伸縮性不織布の低融点側合成
繊維の融点より50℃低い温度から、融点までの範囲内で
実施できる。このように本発明は接着剤を用いないで一
体化するので接着剤の刺激による皮ふ障害、裏抜けして
表面が固くなり皮ふを刺激する、臭いがある等の弊害の
危険性が全くない。The stretchable composite sheet of the present invention integrates the bare polyurethane elastic yarn and the non-stretchable nonwoven fabric by thermocompression bonding. Thermal compression may be partial compression or full compression. The temperature required for thermocompression bonding can be in the range from a temperature lower by 50 ° C. than the melting point of the low melting point synthetic fiber of the non-stretchable nonwoven fabric to the melting point. As described above, since the present invention is integrated without using an adhesive, there is no danger of harm such as skin damage due to stimulation of the adhesive, irritation of the skin due to penetration and hardening of the skin, and odor.
以下、第１図によって説明するとベアのポリウレタン
弾性糸（１）は、伸長された状態で中間層として配され
最終複合シートの形態を保持した後、伸長がとり外され
る。非伸縮性不織布（２）、（３）は、弾性糸からなる
中間層の表裏両面に熱圧着で結合されている。ここで熱
圧着されている部分は、隣合った弾性糸間部分（４）で
あり、ベアのポリウレタン弾性糸（１）と非伸縮性不織
布（２）、（３）とは、結合されていなくても結合され
ていてもよい。Referring to FIG. 1, the bare polyurethane elastic yarn (1) is disposed as an intermediate layer in an elongated state, retains the form of the final composite sheet, and is then unstretched. The non-stretchable nonwoven fabrics (2) and (3) are bonded by thermocompression bonding to both front and back surfaces of an intermediate layer made of elastic yarn. The thermocompression-bonded portion is a portion between adjacent elastic yarns (4), and the bare polyurethane elastic yarn (1) and the non-stretchable nonwoven fabrics (2) and (3) are not bonded. Or may be combined.
本発明の伸縮性複合シートの熱圧着方法は熱と圧力と
がかかわる方法であればいかなる方法であってもよい。
例えば加熱エンボスロールで簡単に熱圧着できる。The thermocompression bonding method of the stretchable composite sheet of the present invention may be any method as long as heat and pressure are involved.
For example, thermocompression bonding can be easily performed with a heating embossing roll.
製造方法の一例として、ひき揃えられた弾性糸をあら
かじめ伸長しておき、その表裏両面に非伸縮性不織布を
配し、加熱エンボスロールに通して熱圧着する方法が挙
げられる。As an example of the production method, there is a method in which stretched elastic yarns are stretched in advance, non-stretchable non-woven fabrics are arranged on both front and back surfaces, and are passed through a heated embossing roll and thermocompression-bonded.
つぎに、本発明を実施例により具体的に説明する。な
お、伸縮性複合シートの物性測定はJIS L1096に準じて
行った。Next, the present invention will be described specifically with reference to examples. The physical properties of the stretchable composite sheet were measured according to JIS L1096.
実施例１ 420デニールのベアのポリウレタン弾性糸を150％に伸
長して２本/cmの密度でひき揃えたものを中間層とし、
目付が23g/m2でスパンボンド法により作られたポリプロ
ピレン不織布を該中間層の表裏両面に配した。ついでピ
ンロールを135℃、スムースメタルロールを145℃に加熱
した加熱エンボスロールに通すことにより熱圧着して伸
縮性複合シートを得た。得られた伸縮性複合シートのギ
ャザーの部分の厚さは3.5mm、ギャザーの数は３〜４個/
cmであった。また、物性は、伸度106％、伸長応力0.3kg
/5cm幅であった。Example 1 A 420 denier bare polyurethane elastic yarn stretched to 150% and aligned at a density of 2 yarns / cm was used as an intermediate layer.
A polypropylene nonwoven fabric having a basis weight of 23 g / m 2 and produced by a spun bond method was disposed on both the front and back surfaces of the intermediate layer. Subsequently, the pin roll was passed through a heated embossing roll heated to 135 ° C. and the smooth metal roll was heated to 145 ° C., thereby performing thermocompression bonding to obtain an elastic composite sheet. The thickness of the gather portion of the obtained stretchable composite sheet is 3.5 mm, and the number of gathers is 3 to 4 pieces /
cm. The physical properties are 106% elongation and 0.3 kg elongation stress.
/ 5 cm wide.
実施例２ 280デニールのベアのポリウレタン弾性糸を200％に伸
長して４本/cmの密度でひき揃えたものを中間層とし、
目付が20g/m2でスパンボンド法により作られたポリプロ
ピレン不織布と該中間層の表裏両面に配した。ついで、
ピンロールを135℃、スムースメタルロールを145℃に加
熱した加熱エンボスロールに通すことにより、熱圧着し
て伸縮性複合シートを得た。得られた伸縮性複合シート
のギャザーの部分の厚さは1.5mm、ギャザーの数は10〜1
4個/cmで物性は伸度194％、伸長応力1.0kg/5cm幅であっ
た。Example 2 An intermediate layer was obtained by stretching 280 denier bare polyurethane elastic yarn to 200% and aligning it at a density of 4 yarns / cm.
A polypropylene nonwoven fabric having a basis weight of 20 g / m 2 and made by a spun bond method was provided on both the front and back surfaces of the intermediate layer. Then
The pin roll was passed through a heated embossing roll heated to 135 ° C. and the smooth metal roll was heated to 145 ° C., thereby performing thermocompression bonding to obtain an elastic composite sheet. The thickness of the gather part of the obtained stretchable composite sheet is 1.5 mm, the number of gathers is 10 to 1
At 4 pieces / cm, the elongation was 194% and the elongation stress was 1.0 kg / 5 cm width.
実施例３ 420デニールのベアのポリウレタン弾性糸を200％に伸
長し、４本/cmの割合でひき揃えたものを中間層とし、
目付が15g/m2でスパンボンド法により作られたポリプロ
ピレン不織布を該中間層の表裏両面に配した。ついでピ
ンロールを135℃スムースロールを145℃に加熱した加熱
エンボスロールに通すことにより熱圧着して伸縮性複合
シートを得た。得られた伸縮性複合シートのギャザーの
部分の厚さは1.5mm、ギャザーの数は10〜14個/cmで物性
は伸度248％、伸長応力0.9kg/5cm幅であった。Example 3 A 420-denier bare polyurethane elastic yarn was stretched to 200% and aligned at a rate of 4 yarns / cm to form an intermediate layer.
A polypropylene nonwoven fabric having a basis weight of 15 g / m 2 and produced by a spun bond method was disposed on both front and back surfaces of the intermediate layer. Next, the pin roll was passed through a heated embossing roll heated to 135 ° C. and a smooth roll heated to 145 ° C. to perform thermocompression bonding to obtain an elastic composite sheet. The thickness of the gather portion of the obtained elastic composite sheet was 1.5 mm, the number of gathers was 10 to 14 / cm, the physical properties were 248% of elongation, and the elongation stress was 0.9 kg / 5 cm.
以上、実施例１〜３にみられる様に、ベアのポリウレ
タン弾性糸の条件を変えることにより様々な伸度、伸長
応力をもつ伸縮性複合シートを簡単に製造することがで
きる。As described above, as seen in Examples 1 to 3, it is possible to easily produce stretchable composite sheets having various elongations and elongation stresses by changing the conditions of the bare polyurethane elastic yarn.
これらの伸縮性複合シートを使い捨ておむつの開口部
に用いたところ適度な締めつけであって、尿が漏れず、
運動性もよかった。When these stretchable composite sheets were used for the opening of the disposable diaper, they were properly tightened and did not leak urine.
Mobility was also good.
本発明の伸縮性複合シートは使い捨ておむつの開口部
等に用いた場合、身体の動きによく追従し、動作性、フ
ィット性に優れ、尿の横漏れを阻止すると同時に通気性
があって蒸れない。なお、薄くて嵩ばらない、接着剤を
用いていないために刺激による皮ふ障害の危険性がない
等、種々の効果を奏するものである。When the stretchable composite sheet of the present invention is used for the opening of a disposable diaper, etc., it follows the movement of the body well, has excellent operability and fit, prevents side leakage of urine, and at the same time has breathability and does not stuffy. . Various effects are exhibited, such as being thin and not bulky, and having no danger of skin damage due to irritation because no adhesive is used.
【図面の簡単な説明】 第１図は、本発明の伸縮性複合シートの一例を示す断面
模式図である。 １……ベアのポリウレタン弾性糸 ２、３……非伸縮性不織布 ４……熱圧着された部分BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic sectional view showing an example of a stretchable composite sheet of the present invention. 1 ... bare polyurethane elastic yarn 2, 3 ... non-stretchable non-woven fabric 4 ... thermocompression bonded part
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭47−29673（ＪＰ，Ａ) 特開 平１−292102（ＪＰ，Ａ) 特開 平１−192802（ＪＰ，Ａ) 特開 昭63−139741（ＪＰ，Ａ) 特開 平２−102649（ＪＰ，Ａ) 実開 昭63−60405（ＪＰ，Ｕ) 実開 昭62−141010（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) A61F 13/15,5/44 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-47-29673 (JP, A) JP-A-1-292102 (JP, A) JP-A-1-192802 (JP, A) JP-A-63-296 139741 (JP, A) JP-A-2-102649 (JP, A) JP-A 63-60405 (JP, U) JP-A 62-141010 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) A61F 13 / 15,5 / 44
Claims (1)
からなる中間層と、該中間層の表裏両面に非伸縮性不織
布が熱圧着により一体化された複合シートであって、ベ
アのポリウレタン弾性糸の密度が１〜10本/cmであり、
該非伸縮性不織布がベアのポリウレタン弾性糸の配列方
向に引き寄せられてギャザーが形成されていることを特
徴とする使い捨ておむつ用伸縮性複合シート。1. A composite sheet in which a non-stretchable nonwoven fabric is integrated by thermocompression bonding on both front and back surfaces of an intermediate layer composed of aligned bare polyurethane elastic yarns, the polyurethane elastic yarn of the bare. The density of 1 to 10 / cm,
A stretchable composite sheet for a disposable diaper, wherein the non-stretchable nonwoven fabric is gathered by being pulled in a direction of arrangement of bare polyurethane elastic yarns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2135344A JP2892106B2 (en) | 1990-05-28 | 1990-05-28 | Elastic composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2135344A JP2892106B2 (en) | 1990-05-28 | 1990-05-28 | Elastic composite sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0430847A JPH0430847A (en) | 1992-02-03 |
| JP2892106B2 true JP2892106B2 (en) | 1999-05-17 |
Family
ID=15149582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2135344A Expired - Lifetime JP2892106B2 (en) | 1990-05-28 | 1990-05-28 | Elastic composite sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2892106B2 (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06154065A (en) * | 1992-11-18 | 1994-06-03 | Prince:Kk | Raw fabric stocker |
| JP2003532554A (en) * | 2000-05-09 | 2003-11-05 | ザ、プロクター、エンド、ギャンブル、カンパニー | Composite fabric panel for use in disposable absorbent articles |
| KR101368848B1 (en) * | 2006-12-28 | 2014-03-03 | 가오 가부시키가이샤 | Stretchable sheet and process for producing the stretchable sheet |
| JP4918002B2 (en) * | 2007-09-07 | 2012-04-18 | 花王株式会社 | Elastic sheet and method for producing the same |
| JP5640190B2 (en) * | 2010-01-26 | 2014-12-17 | 森村興産株式会社 | Composite and production method thereof |
| JP5351212B2 (en) * | 2011-06-14 | 2013-11-27 | 大王製紙株式会社 | Method for producing stretchable sheet and disposable diaper using the same |
| JP6032665B2 (en) * | 2012-06-29 | 2016-11-30 | 大王製紙株式会社 | Disposable diapers |
| KR101790501B1 (en) | 2014-06-04 | 2017-10-26 | 가부시키가이샤 유에무 고교 | Handsaw |
| JP2016016536A (en) * | 2014-07-04 | 2016-02-01 | 旭化成せんい株式会社 | Elastic material having good fittability |
| EP3558189B1 (en) | 2016-12-20 | 2021-06-23 | The Procter & Gamble Company | Methods and apparatuses for making elastomeric laminates with elastic strands provided with a spin finish |
| US11925537B2 (en) | 2017-09-01 | 2024-03-12 | The Procter & Gamble Company | Beamed elastomeric laminate structure, fit, and texture |
| US11147718B2 (en) | 2017-09-01 | 2021-10-19 | The Procter & Gamble Company | Beamed elastomeric laminate structure, fit, and texture |
| WO2019046363A1 (en) | 2017-09-01 | 2019-03-07 | The Procter & Gamble Company | Methods and apparatuses for making elastomeric laminates |
| US11547613B2 (en) | 2017-12-05 | 2023-01-10 | The Procter & Gamble Company | Stretch laminate with beamed elastics and formed nonwoven layer |
| WO2019246194A1 (en) | 2018-06-19 | 2019-12-26 | The Procter & Gamble Company | Absorbent article with function-formed topsheet, and method for manufacturing |
| US11819393B2 (en) | 2019-06-19 | 2023-11-21 | The Procter & Gamble Company | Absorbent article with function-formed topsheet, and method for manufacturing |
| US12053357B2 (en) | 2019-06-19 | 2024-08-06 | The Procter & Gamble Company | Absorbent article with function-formed topsheet, and method for manufacturing |
| JP2023519258A (en) * | 2020-03-25 | 2023-05-10 | ザ ライクラ カンパニー ユーケー リミテッド | elastic nonwoven laminate |
| CN116043410B (en) * | 2022-12-14 | 2024-07-05 | 武汉纺织大学 | Unidirectional moisture-conducting non-woven fabric with concave-convex structure and preparation method thereof |
-
1990
- 1990-05-28 JP JP2135344A patent/JP2892106B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0430847A (en) | 1992-02-03 |
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