JP2000026015A - Manufacture of sretch member - Google Patents
Manufacture of sretch memberInfo
- Publication number
- JP2000026015A JP2000026015A JP10194513A JP19451398A JP2000026015A JP 2000026015 A JP2000026015 A JP 2000026015A JP 10194513 A JP10194513 A JP 10194513A JP 19451398 A JP19451398 A JP 19451398A JP 2000026015 A JP2000026015 A JP 2000026015A
- Authority
- JP
- Japan
- Prior art keywords
- elastic body
- base sheet
- adhesive
- adhered
- elastic
- 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.)
- Granted
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、弾性体が基材シー
ト上に貼着されてなる伸縮性部材を製造するに際して基
材シートに損傷を与えることなく弾性体のみを切断し得
る伸縮性部材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretchable member capable of cutting only an elastic body without damaging the base sheet when manufacturing the stretchable member in which the elastic body is stuck on the base sheet. And a method for producing the same.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】シート
上に貼着された糸状又は帯状の弾性体を切断する方法と
しては、例えば特許第２７６１１６６号公報に記載の方
法が知られている。この方法では、シートの弾性体貼着
面側から該シートに向けて圧縮空気を噴出することによ
り、弾性体切断位置に相当するシートを、該シートの弾
性体非貼着面側へ変位させ、該シートと該弾性体との間
に間隙を形成した後、該弾性体を切断刃によって切断し
ている。しかし、この方法では、切断箇所でシートを一
旦停止させる必要がある等の理由により生産性を高くす
ることは容易でない。2. Description of the Related Art As a method for cutting a thread-like or band-like elastic body stuck on a sheet, for example, a method described in Japanese Patent No. 2761166 is known. In this method, the sheet corresponding to the elastic body cutting position is displaced to the elastic body non-adhering surface side by ejecting compressed air from the elastic body adhering surface side of the sheet toward the sheet, After forming a gap between the sheet and the elastic body, the elastic body is cut by a cutting blade. However, in this method, it is not easy to increase the productivity because the sheet needs to be temporarily stopped at the cutting position.
【０００３】また、特開昭６０−１５１３０１号公報に
は、封水性シートに貼着された帯状弾性体をヒートカッ
ターを用いて非接着位置で切断するときに、該弾性体と
して該封水性シートよりも低い融点の材質で形成された
ものを用い且つ該ヒートカッターの切断用加熱温度を低
く設定することによって、該弾性体のみを切断する方法
が記載されている。しかし、この方法には、溶融物がカ
ッターに付着するという欠点及びシートで被覆された弾
性体はカット出来ないという欠点があった。[0003] Japanese Patent Application Laid-Open No. 60-151301 discloses that when a band-shaped elastic body attached to a water-sealing sheet is cut at a non-adhering position using a heat cutter, the water-sealing sheet is used as the elastic body. A method of cutting only the elastic body by using a material formed of a material having a lower melting point and setting a lower cutting heating temperature of the heat cutter is described. However, this method has the disadvantage that the melt adheres to the cutter and the elastic body covered with the sheet cannot be cut.
【０００４】従って、本発明は、弾性体が基材シート上
に貼着された伸縮性部材を製造するに際して、基材シー
トに損傷を与えることなく弾性体のみを容易に且つ高速
で切断し得る伸縮性弾性部材の製造方法を提供すること
を目的とする。Therefore, according to the present invention, when manufacturing an elastic member in which an elastic body is stuck on a base sheet, only the elastic body can be cut easily and at high speed without damaging the base sheet. An object of the present invention is to provide a method for manufacturing a stretchable elastic member.
【０００５】[0005]
【課題を解決するための手段】本発明は、基材シート上
に糸状又は帯状の弾性体が伸張状態で貼着されてなる伸
縮性部材の製造方法であって、該基材シート上に該弾性
体を接着部及び非接着部を有するように貼着し、次いで
該非接着部の該弾性体のみを加圧切断する伸縮性部材の
製造方法を提供することにより上記目的を達成したもの
である。SUMMARY OF THE INVENTION The present invention relates to a method for producing a stretchable member comprising a string-like or band-like elastic body adhered in an extended state on a base material sheet. The object has been achieved by providing a method for manufacturing a stretchable member in which an elastic body is attached so as to have an adhesive portion and a non-adhesive portion, and then only the elastic material in the non-adhesive portion is cut under pressure. .
【０００６】また、本発明は上記製造方法に用いられる
好ましい装置として、基材シート上に糸状又は帯状の弾
性体が伸張状態で貼着されてなる伸縮性部材の製造装置
であって、長尺状の上記基材シート上に接着剤を間欠的
に塗工して接着部及び非接着部をその長手方向に亘り交
互に且つ規則的に形成する接着剤塗工部と、上記弾性体
を伸張状態下に上記接着部を介して上記基材シート上に
貼着する弾性体貼着部と、互いに対向する、加熱可能な
平滑ローラ及び幅方向に少なくとも一本の突条が設けら
れた加熱可能なロールカッターからなり、該ロールカッ
ターにおける隣り合う該突条間の円弧長が、隣り合う上
記非接着部間の距離と同じになされている弾性体切断部
とを備えた伸縮性部材の製造装置を提供するものであ
る。Further, the present invention is a preferable apparatus used in the above-mentioned manufacturing method, which is an apparatus for manufacturing a stretchable member in which a string-like or band-like elastic body is adhered in an extended state on a base material sheet. An adhesive applied portion intermittently applying an adhesive on the base material sheet to form an adhesive portion and a non-adhesive portion alternately and regularly along its longitudinal direction; An elastic body sticking portion to be stuck on the base sheet via the bonding portion under the state, and a heatable smooth roller opposed to each other and a heatable smooth roller provided with at least one protrusion in the width direction are provided. And a resilient member cutting section comprising a flexible roll cutter, wherein an arc length between the adjacent ridges in the roll cutter is equal to a distance between the adjacent non-adhesive portions. Is provided.
【０００７】また、本発明は基材シート上に、糸状又は
帯状の弾性体を接着部及び非接着部を有するように貼着
し、次いで該非接着部の該弾性体のみを加圧切断する弾
性体の切断方法を提供するものである。Further, the present invention provides an elastic material in which a thread-like or band-like elastic body is adhered to a base sheet so as to have an adhesive portion and a non-adhesive portion, and then only the elastic material in the non-adhesive portion is cut under pressure. It is intended to provide a method for cutting a body.
【０００８】[0008]
【発明の実施の形態】以下、本発明の好ましい実施形態
を、図面を参照しながら説明する。図１は、本発明に好
ましく用いられる伸縮性部材の製造装置１を示す模式図
であり、この製造装置１は接着剤塗工部Ａ、弾性体貼着
部Ｂ、弾性体切断部Ｃ及び図示しない基材シート切断部
を備えている。所定幅を有する長尺状の基材シート２
は、図示しないロールから繰り出されて、矢印Ｄ方向に
沿って接着剤塗工部Ａに搬送される。接着剤塗工部Ａで
は、基材シート２の一面上に接着剤が塗付されて、接着
部４が設けられる。接着部４は略矩形状をしており、基
材シート２の左右両側部を除く幅方向全域に亘り且つそ
の長手方向に関し所定の長さで規則的に設けられる。そ
の結果、隣り合う２つの接着部４の間が非接着部５とな
る。接着部４の幅及び長さ並びに非接着部５の長さは、
弾性体が貼着された基材シート２からなる伸縮性部材の
用途に応じて適宜選択される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a stretchable member manufacturing apparatus 1 preferably used in the present invention. The manufacturing apparatus 1 includes an adhesive coating section A, an elastic body attaching section B, an elastic body cutting section C, and an illustration. Not provided with a base sheet cutting part. Elongated base sheet 2 having a predetermined width
Is fed out from a roll (not shown), and is conveyed to the adhesive coating section A along the direction of arrow D. In the adhesive application section A, an adhesive is applied on one surface of the base sheet 2 to provide an adhesive section 4. The bonding portion 4 has a substantially rectangular shape, and is provided regularly over the entire region in the width direction except for the left and right sides of the base sheet 2 and at a predetermined length in the longitudinal direction. As a result, a non-adhesion portion 5 is formed between two adjacent adhesion portions 4. The width and length of the bonded portion 4 and the length of the non-bonded portion 5 are:
It is appropriately selected according to the use of the elastic member made of the base sheet 2 to which the elastic body is adhered.
【０００９】接着剤塗工部Ａの下流側には弾性体貼着部
Ｂが配されている。この弾性体貼着部Ｂにおいては、回
転可能な円筒状の弾性体案内ローラ６が、その幅方向が
基材シート２の搬送方向と直交するように配置されてい
る。案内ローラ６は、その周面が基材シート２と当接す
るように配置されており、弾性体の接着部４への圧着ロ
ーラとして作用する。また、案内ローラ６には、その幅
方向に所定間隔をおいて且つその円周方向に複数の案内
溝７，７・・・が設けられている。図示しないロールか
ら繰り出された複数の糸状又は帯状の弾性体８，８・・
・は、伸張状態下に互いに平行になるように各案内溝７
に案内される。そして弾性体８は、案内ローラ６による
圧着で、接着部４を介して基材シート２上に貼着され
る。An elastic sticking section B is disposed downstream of the adhesive coating section A. In this elastic body sticking section B, a rotatable cylindrical elastic body guide roller 6 is arranged so that the width direction thereof is orthogonal to the conveying direction of the base sheet 2. The guide roller 6 is arranged so that its peripheral surface is in contact with the base sheet 2, and acts as a pressure roller for the elastic body to the bonding portion 4. The guide roller 6 is provided with a plurality of guide grooves 7, 7,... At predetermined intervals in the width direction and in the circumferential direction. A plurality of thread-like or band-like elastic bodies 8, 8 drawn out from a roll (not shown)
・ The guide grooves 7 are parallel to each other in the extended state.
Will be guided to. Then, the elastic body 8 is stuck on the base sheet 2 via the bonding portion 4 by pressure bonding with the guide roller 6.
【００１０】弾性体貼着部Ｂの下流側には回転可能なタ
ーニングローラ９が配置されており、図示しないロール
から繰り出された被覆シート１０が、このターニングロ
ーラ９に案内されて基材シート２に貼着された弾性体８
上を被覆する。また、基材シート２の弾性体非貼着面側
には、ターニングローラ９と対向するように回転可能な
平滑ローラ１１が配置されており、これら２本のローラ
による押圧によって、両シート間に弾性体８が挟持・貼
着される。[0010] A rotatable turning roller 9 is disposed downstream of the elastic body adhering portion B, and the covering sheet 10 fed out from a roll (not shown) is guided by the turning roller 9 to guide the base sheet 2. Elastic body 8 adhered to
Cover the top. A smooth roller 11 that can rotate so as to face the turning roller 9 is disposed on the elastic body non-sticking surface side of the base sheet 2, and is pressed between the two sheets by pressing by these two rollers. The elastic body 8 is pinched and adhered.
【００１１】ターニングローラ９の下流側には、弾性体
切断部Ｃが配されている。この弾性体切断部Ｃにおいて
は、互いに異なる方向に回転している一対のローラ１
２，１３が配置されており、弾性体８が貼着された基材
シート２は、両ローラ１２，１３間に挿入される。これ
ら２本のローラは何れも加熱可能であり、ロールカッタ
ー１２及び平滑ローラ（アンビルローラ）１３から成っ
ている。そして、ロールカッター１２が被覆シート１０
の側に配置され、平滑ローラ１３が基材シート２の側に
配置されている。ロールカッター１２は、その幅方向に
少なくとも１本（本実施形態においては１本）の突条１
４が設けられている。突条１４の幅は接着部４の幅より
もやや大きく、またその上面は細長い矩形状の平面とな
っている。この上面の長さＷ〔図２（ａ）参照〕は一般
に１．０〜５．０ｍｍであることが好ましい。また、ロ
ールカッター１２における隣り合う突条間の円弧長は、
隣り合う非接着部間の距離と同じになされている。本実
施形態においては、上述の通り突条は１本のみ設けられ
ているので、隣り合う突条間の円弧長はロールカッター
１２の周長に等しい。即ち、本実施形態においては、ロ
ールカッター１２の周長は、隣り合う非接着部５，５間
の距離と同じになされている。An elastic body cutting portion C is disposed downstream of the turning roller 9. In this elastic body cutting portion C, a pair of rollers 1 rotating in different directions from each other
The base sheet 2 on which the elastic bodies 8 are adhered is inserted between the rollers 12 and 13. Each of these two rollers can be heated and includes a roll cutter 12 and a smooth roller (anvil roller) 13. Then, the roll cutter 12 moves the cover sheet 10
, And the smoothing roller 13 is disposed on the side of the base sheet 2. The roll cutter 12 has at least one (in the present embodiment, one) ridge 1 in its width direction.
4 are provided. The width of the ridge 14 is slightly larger than the width of the bonding portion 4, and its upper surface is an elongated rectangular flat surface. In general, it is preferable that the length W of the upper surface (see FIG. 2A) is 1.0 to 5.0 mm. The arc length between adjacent ridges on the roll cutter 12 is:
The distance is the same as the distance between adjacent non-adhesive parts. In the present embodiment, since only one ridge is provided as described above, the arc length between adjacent ridges is equal to the circumferential length of the roll cutter 12. That is, in the present embodiment, the circumferential length of the roll cutter 12 is the same as the distance between the adjacent non-adhesive portions 5.
【００１２】また、基材シートの搬送と両ローラ１２，
１３の回転とは、ロールカッター１２における突条１４
が平滑ローラ１３と対向すると同時に、基材シートの非
接着部５が該突条１４と平滑ローラ１３との間に位置す
るように同期されている。その結果、突条１４と平滑ロ
ーラ１３との押圧によって非接着部５の弾性体８の加圧
切断が行われる。Further, the transfer of the base sheet and the two rollers 12,
The rotation of 13 means the ridge 14 on the roll cutter 12.
Are synchronized with each other so that the non-adhesive portion 5 of the base sheet is located between the ridge 14 and the smooth roller 13 at the same time as the flat roller 13 faces the smooth roller 13. As a result, the elastic body 8 of the non-adhesive portion 5 is cut under pressure by the pressing between the ridge 14 and the smooth roller 13.
【００１３】この切断の詳細について図２を参照しなが
ら説明すると、先ず、図２（ａ）に示すように、両シー
ト２，１０によって挟持・固定された弾性体８は矢印Ｄ
方向に搬送される。このとき、ロールカッター１２及び
平滑ローラ１３はそれぞれ所定温度に加熱されていても
よい。図２（ａ）に示す状態では、ロールカッター１２
の突条１４と平滑ローラ１３とは対向しておらず、ま
た、非接着部５は、ロールカッター１２の中心と平滑ロ
ーラ１３の中心とを結ぶ線上に達していない。The details of the cutting will be described with reference to FIG. 2. First, as shown in FIG. 2 (a), the elastic body 8 sandwiched and fixed between the two sheets 2 and 10 is indicated by an arrow D.
Conveyed in the direction. At this time, the roll cutter 12 and the smooth roller 13 may each be heated to a predetermined temperature. In the state shown in FIG.
And the non-adhesive portion 5 does not reach a line connecting the center of the roll cutter 12 and the center of the smooth roller 13.
【００１４】基材シートの搬送が更に進むと、図２
（ｂ）に示すように、非接着部５がロールカッター１２
の中心と平滑ローラ１３の中心とを結ぶ線上に達し、且
つロールカッター１２の突条１４と平滑ローラ１３とが
対向した状態となる。その結果、ロールカッター１２の
突条１４と平滑ローラ１３との押圧により非接着部５が
加圧及び必要に応じて加熱されて、非接着部５における
弾性体８のみが切断される。弾性体８の切断は、非接着
部５を長手方向に略二等分する線Ｓ（図１参照）上で行
われるが、切断位置はこの位置に限られず、例えば非接
着部５の前後端部のやや内側の位置であるＳ’やＳ”
（それぞれ図１参照）の位置で切断が行われてもよい。
上述の通り弾性体８は伸張状態で基材シート上に貼着さ
れているので、上記の切断によって伸張状態下にあった
弾性体８はその伸張状態が解放されて、切断位置からそ
れぞれ前後方向に収縮する。When the transport of the base sheet further proceeds, FIG.
As shown in (b), the non-adhesive part 5 is a roll cutter 12.
And the center of the smooth roller 13 is reached, and the ridge 14 of the roll cutter 12 and the smooth roller 13 face each other. As a result, the non-adhesive portion 5 is pressed by the pressing between the ridge 14 of the roll cutter 12 and the smooth roller 13, and is heated as necessary, so that only the elastic body 8 in the non-adhesive portion 5 is cut. The cutting of the elastic body 8 is performed on a line S (see FIG. 1) that bisects the non-adhesive portion 5 in the longitudinal direction, but the cutting position is not limited to this position. S 'or S "which is a position slightly inside the part
The cutting may be performed at a position (see FIG. 1).
As described above, since the elastic body 8 is stuck on the base sheet in the stretched state, the stretched state of the elastic body 8 which has been under the stretched state is released by the above-described cutting, and the elastic body 8 is released from the cut position in the front-rear direction. To shrink.
【００１５】上記の加圧切断における圧力は、弾性体及
び基材シートの厚み、弾性体の本数並びに基材シートの
搬送速度等にもよるが、一般に線圧で１００〜３０００
Ｎ／ｃｍ、特に１０００〜２０００Ｎ／ｃｍとすること
が好ましい。斯かる範囲で加圧することによって、基材
シートに損傷を与えることなく弾性体８のみを一層容易
に切断することができる。また、基材シートの搬送を止
めることなく切断が行えるので生産性も向上する。The pressure in the above pressure cutting depends on the thickness of the elastic body and the base sheet, the number of the elastic bodies, the conveying speed of the base sheet, and the like.
N / cm, particularly preferably 1000 to 2000 N / cm. By applying pressure in such a range, only the elastic body 8 can be cut more easily without damaging the base sheet. Further, since the cutting can be performed without stopping the conveyance of the base sheet, the productivity is also improved.
【００１６】上記の切断に際しては、上述の通り、上記
加圧と同時に、必要に応じて、ロールカッター１２及び
／又は平滑ローラ１３の加熱により非接着部５を加熱し
てもよい。ロールカッター１２及び／又は平滑ローラ１
３の加熱温度は、弾性体及び基材シートの材質、弾性体
の本数並びに基材シートの搬送速度等にもよるが、一般
に３０〜２５０℃、特に５０〜１５０℃とすることが好
ましい。このような加熱を行うことで、非接着部５にお
ける弾性体８のみを一層高速で効果的に切断することが
できる。At the time of cutting, as described above, the non-adhesive portion 5 may be heated by heating the roll cutter 12 and / or the smoothing roller 13 simultaneously with the pressurization, if necessary. Roll cutter 12 and / or smooth roller 1
The heating temperature of 3 depends on the materials of the elastic body and the base sheet, the number of the elastic bodies, the conveying speed of the base sheet, and the like, but is generally preferably 30 to 250 ° C, particularly preferably 50 to 150 ° C. By performing such heating, only the elastic body 8 in the non-bonded portion 5 can be cut more effectively at higher speed.
【００１７】基材シート２の搬送速度にも多少影響され
るが、搬送速度が極端に速い場合を除き、加熱された非
接着部５の温度はロールカッター１２及び／又は平滑ロ
ーラ１３の加熱温度とほぼ等しい。非接着部５の厳密な
温度は、赤外線温度計等の測定装置を用いて測定するこ
とができる。The temperature of the heated non-adhesive portion 5 depends on the heating temperature of the roll cutter 12 and / or the smoothing roller 13, although the speed is slightly affected by the speed of transporting the base material sheet 2, unless the transport speed is extremely high. Is almost equal to The exact temperature of the non-bonded portion 5 can be measured using a measuring device such as an infrared thermometer.
【００１８】ロールカッター１２及び平滑ローラ１３を
加熱する場合、その温度は同じでも異なっていてもよ
い。平滑ローラ１３の加熱温度は、基材シート２の損傷
防止の点から、基材シート２の構成物質の融点付近また
はそれ以下が好ましい。When the roll cutter 12 and the smooth roller 13 are heated, their temperatures may be the same or different. The heating temperature of the smoothing roller 13 is preferably near or below the melting point of the constituent material of the base sheet 2 from the viewpoint of preventing damage to the base sheet 2.
【００１９】本発明の弾性体の切断方法に用いられる基
材シートとしては、織布、不織布、編物、フィルム及び
紙等が用いられる。これらの構成材料としては各種合成
樹脂、パルプなどの天然繊維及びレーヨンなどの再生繊
維等が用いられる。基材シートの坪量は一般に１０〜５
０ｇ／ｍ2 、特に１５〜３０ｇ／ｍ2 であることが好ま
しい。As the base sheet used in the method for cutting an elastic body of the present invention, woven fabric, nonwoven fabric, knitted fabric, film, paper and the like are used. As these constituent materials, various synthetic resins, natural fibers such as pulp, and recycled fibers such as rayon are used. The basis weight of the base sheet is generally 10 to 5
0 g / m 2, it is particularly preferably 15 to 30 g / m 2.
【００２０】弾性体８としては、各種エラストマー樹脂
が用いられる。用途にもよるが、弾性体８が糸状である
場合、その太さは一般に１００〜１０００デニール、特
に５００〜１０００デニールであることが好ましい。一
方、弾性体８が帯状である場合、その厚みは一般に０．
０１〜０．１ｍｍ、特に０．０２〜０．０５ｍｍである
ことが好ましい。As the elastic body 8, various elastomer resins are used. Although it depends on the application, when the elastic body 8 is in the form of a thread, its thickness is generally preferably 100 to 1000 denier, particularly preferably 500 to 1000 denier. On the other hand, when the elastic body 8 has a band shape, the thickness thereof is generally 0.1 mm.
It is preferably from 0.1 to 0.1 mm, particularly preferably from 0.02 to 0.05 mm.
【００２１】上述のようにして弾性体８のみが切断され
た基材シートは、弾性体８の切断に引き続く次工程であ
る基材シート切断部（図示せず）において、公知の切断
手段によって非接着部５の基材シートが切断されて毎葉
の伸縮性部材が得られる。別法として、一旦巻き取られ
た後に、別工程において非接着部５の基材シートが公知
の切断手段によって切断されて伸縮性部材となる。或い
はそのまま加工され、最終製品の段階で公知の手段で切
断される。尚、非接着部５の基材シートの切断は、得ら
れる伸縮性部材の用途に応じて各非接着部５ごとに行わ
れてよく、或いは以下に述べる図３に示す例のように幾
つかの非接着部おきに規則的に行われてもよい。The base sheet from which only the elastic body 8 has been cut as described above is cut by a known cutting means in a base sheet cutting section (not shown) which is the next step following the cutting of the elastic body 8. The base material sheet of the bonding portion 5 is cut to obtain the elastic member of each leaf. Alternatively, after being wound once, the base sheet of the non-adhesive portion 5 is cut by a known cutting means in a separate step to become an elastic member. Alternatively, it is processed as it is and cut by a known means at the stage of a final product. The cutting of the base sheet of the non-adhesive portion 5 may be performed for each non-adhesive portion 5 depending on the use of the obtained elastic member, or some of the cuts may be performed as in the example shown in FIG. May be performed regularly at every non-adhesive portion.
【００２２】このようにして得られた伸縮性部材１５
は、例えば図３に示すように、使い捨ておむつ１６のウ
エスト部におけるトップシート１７とバックシート１８
との間に固定されたウエスト部ギャザーとして用いられ
る。この伸縮性部材１５では各非接着部５において弾性
体が切断されているが、基材シートは１個の非接着部５
おきに切断されている。その結果、該ウエスト部ギャザ
ーは間欠ギャザーを形成している。The elastic member 15 thus obtained
The top sheet 17 and the back sheet 18 at the waist portion of the disposable diaper 16 as shown in FIG.
Used as waist gathers fixed between In this stretchable member 15, the elastic body is cut at each non-adhesive portion 5, but the base sheet is a single non-adhesive portion 5.
Every other day is disconnected. As a result, the waist gathers form intermittent gathers.
【００２３】本発明の範囲は上記実施形態に制限されず
本発明の趣旨を逸脱しない範囲において種々の変更が可
能である。例えば、上記実施形態においては２枚の基材
シートを用いたが、これに代えて基材シートを１枚のみ
用いてもよい。この場合には、基材シートの弾性体貼着
面側にロールカッター１２を配し、弾性体非貼着面側に
平滑ローラ１３を配することが、弾性体８を効果的に切
断し得る点から好ましい。また、図４に示すように、１
枚の基材シート２を用い、該基材シート２に弾性体８を
貼着し、次いで該基材シート２をその長手方向に沿って
折り返して（二つ折りして）該弾性体８上を被覆して、
折り返された該基材シート２間に該弾性体８を挟持・貼
着した後に、該弾性体８のみを切断してもよい。また、
ロールカッター１２の突条１４の形状は上述のものに限
られず、例えば、突条１４の幅は接着部４の幅よりも小
さくてもよく、或いは突条１４がロールカッター１２の
幅方向に断続的に設けられていてもよい。突条１４をこ
のような形状とすることで任意の弾性体のみの切断が可
能となり、得られる伸縮性部材に用途に応じた種々のバ
リエーションを付与することができる。また、図１に示
す切断装置１のロールカッター１２として２本以上の突
条を設けたものを用いてもよい。また、上記加圧切断を
一層効果的に行うために、一対のヒートローラやオーブ
ンヒータ等を用い、該加圧切断の前に非接着部５を所定
温度に予備加熱してもよい。The scope of the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention. For example, although two base sheets are used in the above embodiment, only one base sheet may be used instead. In this case, arranging the roll cutter 12 on the elastic body sticking surface side of the base sheet and arranging the smooth roller 13 on the elastic body non-sticking surface side can effectively cut the elastic body 8. Preferred from the point. Also, as shown in FIG.
An elastic body 8 is adhered to the base sheet 2 using two base sheets 2, and then the base sheet 2 is folded back along the longitudinal direction (folded in half) to put the elastic body 8 on the elastic body 8. Cover it,
After the elastic body 8 is sandwiched and adhered between the folded base sheets 2, only the elastic body 8 may be cut. Also,
The shape of the ridge 14 of the roll cutter 12 is not limited to the above-described one. For example, the width of the ridge 14 may be smaller than the width of the bonding portion 4, or the ridge 14 is intermittent in the width direction of the roll cutter 12. May be provided. By forming the ridge 14 in such a shape, it is possible to cut only an arbitrary elastic body, and it is possible to impart various variations to the obtained elastic member according to the application. Further, as the roll cutter 12 of the cutting device 1 shown in FIG. 1, a cutter provided with two or more protrusions may be used. In order to more effectively perform the pressure cutting, a non-adhesive portion 5 may be preheated to a predetermined temperature before the pressure cutting using a pair of heat rollers, an oven heater, or the like.
【００２４】[0024]
【発明の効果】本発明によれば、基材シートに損傷を与
えることなく弾性体のみを容易に且つ高速で切断するこ
とができる。また、複雑な装置が不要なので容易に且つ
安価に切断を行うことができる。また、ロールカッター
の突条の形状を適宜変更することによって、任意の弾性
体のみを切断できる。According to the present invention, only the elastic body can be cut easily and at high speed without damaging the base sheet. Further, since a complicated device is unnecessary, cutting can be performed easily and at low cost. Also, by appropriately changing the shape of the ridge of the roll cutter, only an arbitrary elastic body can be cut.
【図１】本発明に好ましく用いられる伸縮性部材の製造
装置１を示す模式図である。FIG. 1 is a schematic view showing a stretchable member manufacturing apparatus 1 preferably used in the present invention.
【図２】図２（ａ）及び図２（ｂ）はそれぞれ弾性体の
切断状態を示す模式図である。FIGS. 2 (a) and 2 (b) are each a schematic view showing a cut state of an elastic body.
【図３】本発明により得られた伸縮性部材を使い捨てお
むつに適用した例を示す模式図である。FIG. 3 is a schematic view showing an example in which the elastic member obtained by the present invention is applied to a disposable diaper.
【図４】本発明の別の実施形態を示す模式図（図１相当
図）である。FIG. 4 is a schematic view (corresponding to FIG. 1) showing another embodiment of the present invention.
１ 伸縮性部材の製造装置 ２ 基材シート ４ 接着部 ５ 非接着部 ８ 弾性体 １０ 被覆シート １２ ロールカッター １３ 平滑ローラ １４ 突条 DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus of an elastic member 2 Base sheet 4 Adhesion part 5 Non-adhesion part 8 Elastic body 10 Cover sheet 12 Roll cutter 13 Smooth roller 14 Protrusion
───────────────────────────────────────────────────── フロントページの続き (72)発明者 前田 和之 栃木県芳賀郡市貝町赤羽2606 花王株式会 社研究所内 Ｆターム(参考） 3B029 BD10 BD13 BF07 3F108 GA09 GB01 GB06 HA03 HA12 4C098 AA09 CC40 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuyuki Maeda 2606 Akabane, Kaigamachi, Haga-gun, Tochigi Pref.
Claims (5)
伸張状態で貼着されてなる伸縮性部材の製造方法であっ
て、該基材シート上に該弾性体を接着部及び非接着部を
有するように貼着し、次いで該非接着部の該弾性体のみ
を加圧切断する伸縮性部材の製造方法。1. A method for manufacturing a stretchable member comprising a base material sheet and a thread-like or band-like elastic body attached in an extended state, wherein the elastic body is bonded to the base sheet with a bonded part and a non-bonded part. A method for producing an elastic member, wherein the elastic member is adhered so as to have a portion, and then only the elastic body of the non-adhered portion is cut under pressure.
非接着部をそれぞれ設け、上記弾性体を該接着部を介し
て該基材シートに伸張状態で貼着し、次いで、該非接着
部の該弾性体のみを加圧切断する請求項１記載の伸縮性
部材の製造方法。2. The adhesive part and the non-adhesive part are provided on the base sheet, respectively, and the elastic body is adhered to the base sheet via the adhesive part in an extended state. 2. The method for producing an elastic member according to claim 1, wherein only the elastic body is cut under pressure.
に、被覆シートによって又は上記基材シートの折り返し
によって該弾性体を被覆し、両シート間又は折り返され
た上記基材シート間に該弾性体を挟持・貼着した後に該
非接着部の該弾性体のみを加圧切断する請求項１又は２
記載の伸縮性部材の製造方法。3. After sticking the elastic body to the base sheet, cover the elastic body with a cover sheet or by folding the base sheet, and between the two sheets or between the folded base sheets. 3. The pressure-cutting of only the elastic body of the non-adhesive portion after the elastic body is sandwiched and adhered.
A manufacturing method of the elastic member according to the above.
伸張状態で貼着されてなる伸縮性部材の製造装置であっ
て、長尺状の上記基材シート上に接着剤を間欠的に塗工
して接着部及び非接着部をその長手方向に亘り交互に且
つ規則的に形成する接着剤塗工部と、上記弾性体を伸張
状態下に上記接着部を介して上記基材シート上に貼着す
る弾性体貼着部と、互いに対向する、加熱可能な平滑ロ
ーラ及び幅方向に少なくとも一本の突条が設けられた加
熱可能なロールカッターからなり、該ロールカッターに
おける隣り合う該突条間の円弧長が、隣り合う上記非接
着部間の距離と同じになされている弾性体切断部とを備
えた伸縮性部材の製造装置。4. An apparatus for manufacturing a stretchable member in which a thread-like or band-like elastic body is adhered in an extended state on a base sheet, wherein an adhesive is intermittently applied on the long base sheet. And an adhesive-coated portion for forming an adhesive portion and a non-adhesive portion alternately and regularly over the longitudinal direction thereof, and the base sheet via the adhesive portion under the stretched state of the elastic body. An elastic body sticking portion to be stuck on the upper side, a heatable smooth roller facing each other, and a heatable roll cutter provided with at least one ridge in a width direction, and a heatable roll cutter adjacent to the roll cutter. An apparatus for manufacturing a stretchable member, comprising: an elastic body cut portion in which an arc length between ridges is equal to a distance between adjacent non-adhesive portions.
を接着部及び非接着部を有するように貼着し、次いで該
非接着部の該弾性体のみを加圧切断する弾性体の切断方
法。5. An elastic body in which a thread-like or band-like elastic body is adhered to a base sheet so as to have an adhesive portion and a non-adhesive portion, and then only the elastic body in the non-adhesive portion is cut under pressure. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19451398A JP3545210B2 (en) | 1998-07-09 | 1998-07-09 | Method for manufacturing elastic member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19451398A JP3545210B2 (en) | 1998-07-09 | 1998-07-09 | Method for manufacturing elastic member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000026015A true JP2000026015A (en) | 2000-01-25 |
| JP3545210B2 JP3545210B2 (en) | 2004-07-21 |
Family
ID=16325791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19451398A Expired - Fee Related JP3545210B2 (en) | 1998-07-09 | 1998-07-09 | Method for manufacturing elastic member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3545210B2 (en) |
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