JP4657317B2 - Method for manufacturing absorbent article - Google Patents

Method for manufacturing absorbent article Download PDF

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JP4657317B2
JP4657317B2 JP2008116594A JP2008116594A JP4657317B2 JP 4657317 B2 JP4657317 B2 JP 4657317B2 JP 2008116594 A JP2008116594 A JP 2008116594A JP 2008116594 A JP2008116594 A JP 2008116594A JP 4657317 B2 JP4657317 B2 JP 4657317B2
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elastic member
sheet
collar
absorbent article
base wall
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JP2008183435A (en
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正洋 谷口
浩志 丸山
進之介 森田
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Kao Corp
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Kao Corp
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Description

本発明は、生理用ナプキン、使い捨ておむつ、失禁パッド等の吸収性物品に用いられる立体ギャザーを備えた吸収性物品の製造方法に関する。
The present invention, sanitary napkins, disposable diapers, a method of manufacturing an absorbent material article having a three-dimensional gathers for use in absorbent articles of the incontinence pad or the like.

下記特許文献1には、基壁部から両側に張り出した張出し部を有するT字型の立体ギャザーを、吸収体の側縁よりも外方に設けた使い捨ておむつに関する技術が提案されている。この使い捨ておむつは、T字型の立体ギャザーの上面を、着用者の大腿部へ面で当接させて、排泄物の漏れを防止しようとするものである。   Patent Document 1 below proposes a technique related to a disposable diaper in which a T-shaped three-dimensional gather having projecting portions projecting on both sides from a base wall portion is provided outside the side edge of the absorbent body. This disposable diaper is intended to prevent leakage of excrement by bringing the upper surface of a T-shaped solid gather into contact with the thigh of the wearer.

ところで、このように立体ギャザーの張り出し部が両側に張り出していると、内側の張り出し部によって表面シートの肌当接面の面積が狭められるため、フィット性及び液漏れ性を備え且つ表面シートの肌当接面を十分に確保し得る手段が望まれていた。   By the way, since the area of the skin contact surface of the surface sheet is narrowed by the inner overhanging portion when the overhanging portion of the three-dimensional gather is overhanging on both sides in this way, the skin of the topsheet is provided with fit and liquid leakage. There has been a demand for means capable of sufficiently securing the contact surface.

一方、下記特許文献2〜6には、複数の立体ギャザーを組み合わせて漏れ防止を図った吸収性物品が提案されているが、ギャザー部分が体の動きに追従しづらく、フィット性が損なわれていた。   On the other hand, although the following patent documents 2-6 have proposed the absorbent article which combined several solid gathers and aimed at leakage prevention, a gather part is hard to follow a motion of a body and fit property is impaired. It was.

特開平1−68503号公報JP-A-1-68503 特開2000−140009号公報Japanese Patent Laid-Open No. 2000-140009 特開平3−218752号公報JP-A-3-2188752 特開平2−174845号公報Japanese Patent Laid-Open No. 2-174845 特開平11−104174号公報JP-A-11-104174 特開2002−45396号公報JP 2002-45396 A

従って、本発明は、フィット性が高く、表面シートの肌当接面を十分に確保しつつ液漏れを確実に防止し得る立体ギャザーを備えた吸収性物品の製造方法を提供することを目的とする。
Accordingly, the present invention has a high fitting property, aims to provide a manufacturing method for absorbent products article having a three-dimensional gathers can reliably prevent liquid leakage while securing a sufficient skin contact surface of the topsheet And

また、本発明は、基壁部及び該基壁部から片側に張り出す複数の襞部を有する立体ギャザーを備えた吸収性物品の製造方法であって、帯状のシートを搬送しながら該シートの片面の幅方向中間部に該シートの長手方向に沿って第1の弾性部材を伸張状態で配し、該第1の弾性部材を境として該シートの一方の面部を、該第1の弾性部材を覆うように絞り込んで第1の襞部を形成し、絞り込まれた前記一方の面部の露呈面に前記シートの長手方向に沿って第2の弾性部材を伸長状態で配し、前記一方の面部をさらに該第2の弾性部材を覆うように折り曲げて第2の襞部を形成し、前記第1の襞部を前記第2の襞部と共に前記基壁部の片側に折り曲げて立体ギャザー形成用部材を形成する工程を具備する吸収性物品の製造方法を提供することにより、前記目的を達成したものである。   Further, the present invention is a method for manufacturing an absorbent article comprising a base wall part and a three-dimensional gather having a plurality of eaves parts projecting from the base wall part to one side, wherein the sheet A first elastic member is arranged in an extended state along the longitudinal direction of the sheet at an intermediate portion in the width direction on one side, and one surface of the sheet is connected to the first elastic member with the first elastic member as a boundary. The first elastic member is squeezed so as to cover the first elastic member, and the second elastic member is extended along the longitudinal direction of the sheet on the exposed surface of the squeezed one surface part, and the one surface part Is further folded so as to cover the second elastic member to form a second collar part, and the first collar part is folded together with the second collar part to one side of the base wall part to form a three-dimensional gather. By providing a method for manufacturing an absorbent article comprising a step of forming a member It is obtained by achieving the above object.

本発明によれば、フィット性が高く、表面シートの肌当接面を十分に確保しつつ液漏れを確実に防止し得る立体ギャザーを備えた吸収性物品の製造方法が提供される。
According to the present invention, fit is high, the production method of the topsheet skin absorbent product with an equivalent while contact surface was sufficiently secured can reliably prevent the leakage standing gathers article is provided.

以下、本発明をその好ましい実施形態に基づき図面を参照しながら説明する。
図1及び図2は、本発明の吸収性物品の製造方法の実施によって製造される吸収性物品(以下、本発明の吸収性物品ともいう)を生理用ナプキンに適用した一実施形態を模式的に示すものである。これらの図において、符号11は生理用ナプキンを示している。
Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings.
1 and 2 schematically illustrate an embodiment in which an absorbent article (hereinafter also referred to as the absorbent article of the present invention) manufactured by carrying out the method of manufacturing an absorbent article of the present invention is applied to a sanitary napkin. It is shown in In these drawings, reference numeral 11 denotes a sanitary napkin.

図1及び図2に示すように、本実施形態の生理用ナプキン11は、襞部(第1の襞部)14及び襞部(第2の襞部)15が基壁部13の上端部から片側(外側)に張り出した形態の立体ギャザー12を備えている。立体ギャザー12は、液透過性の表面シート16で覆われた吸収性層17の両側に配されている。   As shown in FIGS. 1 and 2, the sanitary napkin 11 of the present embodiment has a heel part (first heel part) 14 and a heel part (second heel part) 15 from the upper end of the base wall part 13. A three-dimensional gather 12 is provided that projects to one side (outside). The three-dimensional gathers 12 are arranged on both sides of the absorbent layer 17 covered with a liquid-permeable surface sheet 16.

図2に示すように、襞部14内には、弾性部材(第1の弾性部材)40及び弾性部材(第4の弾性部材)41が所定間隔をおいて配されている。また、襞部15内には、弾性部材(第2の弾性部材)50及び弾性部材(第4の弾性部材)51が所定間隔をおいて配されている。また、基壁部13の上端部に位置する各襞部の基部には弾性部材(第3の弾性部材)60が配されている。   As shown in FIG. 2, an elastic member (first elastic member) 40 and an elastic member (fourth elastic member) 41 are arranged in the collar portion 14 at a predetermined interval. Further, an elastic member (second elastic member) 50 and an elastic member (fourth elastic member) 51 are arranged in the flange portion 15 at a predetermined interval. In addition, an elastic member (third elastic member) 60 is disposed at the base portion of each flange portion located at the upper end portion of the base wall portion 13.

襞部14の幅W14は、立体ギャザー12のフィット性、表面シートの肌当接面の確保、液漏れ防止性を考慮すると、5〜20mmが好ましい。同様に、襞部15の幅W15は、10〜30mmが好ましい。二重の襞構造による漏れ防止効果をより高める上では、下側又は外側の襞部の幅を上側又は内側の襞部の幅よりも広いことが好ましく、本実施形態では、襞部15の幅W15が、襞部14の幅よりW14広く設けられている。   The width W14 of the collar portion 14 is preferably 5 to 20 mm in consideration of the fitting property of the three-dimensional gather 12, the securing of the skin contact surface of the topsheet, and the liquid leakage prevention property. Similarly, the width W15 of the flange portion 15 is preferably 10 to 30 mm. In order to further enhance the leakage prevention effect by the double ridge structure, it is preferable that the width of the lower or outer ridge is wider than the width of the upper or inner ridge, and in this embodiment, the width of the ridge 15 W15 is provided W14 wider than the width of the flange 14.

立体ギャザー12を構成するシートは、立体ギャザー12が肌に直接当接することから、肌触りの良好なものが好ましい。また、低表面張力の液が透過することを防止する観点から疎水性のものであることが好ましい。これらの要請を満足するシートとして、疎水性繊維からなるか又は疎水化処理されたエアスルー不織布、スパンボンド不織布又はスパンボンド/メルトブロー複合不織布を用いることが好ましい。   The sheet constituting the three-dimensional gather 12 is preferably one having a good touch because the three-dimensional gather 12 directly contacts the skin. Moreover, it is preferable that it is hydrophobic from a viewpoint of preventing that the liquid of low surface tension permeate | transmits. As a sheet satisfying these requirements, it is preferable to use an air-through nonwoven fabric, a spunbond nonwoven fabric, or a spunbond / melt blown composite nonwoven fabric made of hydrophobic fibers or hydrophobized.

立体ギャザー12を不織布で構成する場合、該不織布は、立体ギャザー12の長さ方向について測定されたバルクソフトネスが0.03〜0.3N、特に0.05〜0.2Nであることが好ましく、立体ギャザー12の幅方向(高さ方向)について測定されたバルクソフトネスが0.05〜0.5N、特に0.07〜0.3Nであることが好ましい。更に幅方向のバルクソフトネス値が、長さ方向のバルクソフトネス値と同等又はそれ以上であることが好ましい。前記不織布の長さ方向及び幅方向のバルクソフトネス値を前記範囲とし、また両バルクソフトネス値の大小関係を前述のものとすることにより、襞部14、15に配された各弾性部材が、長さ方向に収縮し易くなる。また、襞部14、15によるシール効果、及び立体ギャザーの起立性が、着用者の動作にかかわらず安定的に維持される。幅方向のバルクソフトネス値を長さ方向のバルクソフトネス値よりも高くする為には、例えば不織布の幅方向に波状のエンボス等を施す方法が好ましく挙げられる。   When the three-dimensional gather 12 is composed of a nonwoven fabric, the nonwoven fabric preferably has a bulk softness measured in the length direction of the three-dimensional gather 12 of 0.03 to 0.3 N, particularly 0.05 to 0.2 N. The bulk softness measured in the width direction (height direction) of the three-dimensional gather 12 is preferably 0.05 to 0.5N, particularly preferably 0.07 to 0.3N. Furthermore, it is preferable that the bulk softness value in the width direction is equal to or greater than the bulk softness value in the length direction. By setting the bulk softness value in the length direction and the width direction of the nonwoven fabric in the above range, and the magnitude relationship between the two bulk softness values as described above, the elastic members disposed in the flange portions 14 and 15 are It becomes easy to shrink in the length direction. Moreover, the sealing effect by the collar parts 14 and 15 and the standing property of a three-dimensional gather are stably maintained irrespective of a wearer's operation | movement. In order to make the bulk softness value in the width direction higher than the bulk softness value in the length direction, for example, a method of applying wave-like embossing or the like in the width direction of the nonwoven fabric is preferable.

前記バルクソフトネスは、以下の方法で測定される。即ち、テンシロン(東洋ボールドウィン製、型式:RTM−25)を用い、不織布サンプルを120mm×10mmにカットし、10mmの高さの円筒を作り、その上端と下端をステープルで止め、測定用の円筒サンプルを作る。この円筒サンプルの高さ方向に圧縮速度10mm/minで圧縮した時の最大荷重を測定し、その値をバルクソフトネス値とする。長さ方向のバルクソフトネス値とは、不織布の長さ方向が圧縮方向となる場合の値をいい、幅方向のバルクソフトネス値とは、不織布の幅方向が圧縮方向となる場合の値をいう。   The bulk softness is measured by the following method. That is, using Tensilon (manufactured by Toyo Baldwin, model: RTM-25), a non-woven fabric sample is cut into 120 mm × 10 mm, a 10 mm high cylinder is made, and its upper and lower ends are fastened with staples. make. The maximum load when the cylindrical sample is compressed in the height direction at a compression speed of 10 mm / min is measured, and the value is defined as a bulk softness value. The bulk softness value in the length direction refers to the value when the length direction of the nonwoven fabric is the compression direction, and the bulk softness value in the width direction is the value when the width direction of the nonwoven fabric is the compression direction. Say.

前記各弾性部材の構成材料は、生理用ナプキンに従来用いられる各種のものを特に制限なく用いることができるが、ポリオレフィン類及びポリウレタン類の発泡体並びに天然ゴムが特に好ましく用いられる。
前記各弾性部材には、糸状の他、帯状、フィルム状等の形状のものを用いることができる。各弾性部材の配置、伸張率及び/又は本数は、弾性部材の形態、生理用ナプキンの用途に応じて適宜変更することができる。
前記各弾性部材は、シートに伸張状態で固定されている。そして、各弾性部材の弾性収縮により図1に示すように立体ギャザーに皺が発現される。弾性部材の固定手段は、生理用ナプキンに通常用いられるものであれば特に制限されないが、ホットメルト接着剤、ヒートシールが好ましく用いられる。
As the constituent material of each elastic member, various materials conventionally used for sanitary napkins can be used without particular limitation, but foams of polyolefins and polyurethanes and natural rubber are particularly preferably used.
Each elastic member may be in the form of a band, a film or the like in addition to a thread. The arrangement, elongation rate, and / or number of each elastic member can be appropriately changed according to the form of the elastic member and the use of the sanitary napkin.
Each of the elastic members is fixed to the sheet in an extended state. As shown in FIG. 1, wrinkles appear in the three-dimensional gather due to the elastic contraction of each elastic member. The means for fixing the elastic member is not particularly limited as long as it is usually used for sanitary napkins, but hot melt adhesives and heat seals are preferably used.

立体ギャザー12は、基壁部13の端部が表面シート16とともに吸収性層17の裏側に配され、側面シート19が貼り合わされた液不透過性の裏面シート18に、表面シート16とともに固定されている。襞部14、15の前後端部は、図1に示すように、吸収性物品1の外縁部において固定されている。   The three-dimensional gather 12 is fixed together with the topsheet 16 to a liquid-impermeable backsheet 18 in which the end of the base wall portion 13 is arranged on the backside of the absorbent layer 17 together with the topsheet 16 and the sidesheet 19 is bonded. ing. The front and rear end portions of the flange portions 14 and 15 are fixed at the outer edge portion of the absorbent article 1 as shown in FIG.

生理用ナプキン11を構成する表面シート16、吸収性層17、裏面シート18、側面シート19には、従来から生理用ナプキンに通常用いられている公知の部材が採用されている。   For the topsheet 16, the absorbent layer 17, the backsheet 18, and the sidesheet 19 constituting the sanitary napkin 11, known members that are conventionally used for sanitary napkins are employed.

ナプキン11は、このような二重の襞部を有する立体ギャザー12を備えているため、フィット性が高く、表面シートの肌当接面を十分に確保しつつ液漏れを確実に防止することができる。   Since the napkin 11 includes the three-dimensional gather 12 having such a double collar part, the fitting property is high, and it is possible to reliably prevent liquid leakage while sufficiently securing the skin contact surface of the topsheet. it can.

次に、本発明の吸収性物品の製造方法の好ましい実施形態を、上記ナプキン11の製造方法に基づいて図面を参照しながら説明する。   Next, a preferred embodiment of the method for producing an absorbent article of the present invention will be described based on the method for producing the napkin 11 with reference to the drawings.

図3は、本発明の吸収性物品の製造装置(以下、単に装置ともいう。)を生理用ナプキンの製造装置に適用した一実施形態を示すものであり、図3における符号1は装置、Rはシートの搬送経路を示している。   FIG. 3 shows an embodiment in which the absorbent article manufacturing apparatus (hereinafter also simply referred to as an apparatus) of the present invention is applied to a sanitary napkin manufacturing apparatus. Reference numeral 1 in FIG. Indicates a sheet conveyance path.

図3に示す装置1は、生理用ナプキン11の製造装置の一部を示すものであり、前記立体ギャザー12を形成する部材の製造装置である。   The apparatus 1 shown in FIG. 3 shows a part of the manufacturing apparatus for the sanitary napkin 11 and is a manufacturing apparatus for members that form the three-dimensional gather 12.

図3〜図5に示すように、装置1は、帯状のシート10の供給手段2と、シート10を長手方向に沿って搬送経路Rで搬送する搬送手段3と、シート10の上面(片面)の幅方向中間部に弾性部材40を供給する第1の弾性部材供給手段4Aと、弾性部材40を境としてシート10の一方の面部10Aを弾性部材40を覆うよう、Z字状の断面形状に絞り込んで襞部14を形成する第1の加工手段1Aと、絞り込まれた前記一方の面部の上面(露呈面)に弾性部材50を供給する第2の弾性部材供給手段5Aと、前記一方の面部をさらに弾性部材50を覆うように折り曲げて襞部15を形成する第2の加工手段1Bと、襞部14を襞部15と共に基壁部13の片側に折り曲げる第3の加工手段1Cとを具備している。   As shown in FIGS. 3 to 5, the apparatus 1 includes a supply unit 2 for a belt-like sheet 10, a conveyance unit 3 for conveying the sheet 10 along a longitudinal direction along a conveyance path R, and an upper surface (one side) of the sheet 10. The first elastic member supply means 4A for supplying the elastic member 40 to the intermediate portion in the width direction of the sheet 10 and a Z-shaped cross-sectional shape so as to cover the elastic member 40 on one surface 10A of the sheet 10 with the elastic member 40 as a boundary. 1st processing means 1A which narrows down and forms the collar part 14, 2nd elastic member supply means 5A which supplies the elastic member 50 to the upper surface (exposed surface) of said one surface part narrowed down, and said one surface part Is further bent to cover the elastic member 50 to form the flange portion 15, and a third processing means 1 C is formed to bend the flange portion 14 together with the flange portion 15 to one side of the base wall portion 13. is doing.

また、装置1は、襞部14及び襞部15を形成する前に、襞部14及び襞部15内に配されるように弾性部材40及び弾性部材50と所定間隔をおき且つシート10の長手方向に沿うように弾性部材41、51を供給する第4の弾性部材供給手段4B、5Bを具備している。   Further, before forming the flange portion 14 and the flange portion 15, the apparatus 1 is spaced apart from the elastic member 40 and the elastic member 50 so as to be arranged in the flange portion 14 and the flange portion 15, and the length of the sheet 10. 4th elastic member supply means 4B and 5B which supply the elastic members 41 and 51 along the direction are comprised.

また、装置1は、シート10の上面に弾性部材40と所定間隔をおき、且つシート10の長手方向に沿うように弾性部材60を供給する第3の弾性部材供給手段6と、前記各弾性部材40、41、50、51及び60に接着剤を塗布する接着剤の塗工手段7と、前記各加工手段で加工を終えたシートを加圧する加圧手段8とを備えている。   In addition, the apparatus 1 includes a third elastic member supply unit 6 that supplies the elastic member 60 along the longitudinal direction of the sheet 10 at a predetermined interval from the elastic member 40 on the upper surface of the sheet 10, and each of the elastic members. An adhesive coating means 7 for applying an adhesive to 40, 41, 50, 51 and 60, and a pressurizing means 8 for pressurizing the sheet processed by each processing means are provided.

第1の加工手段1Aは、図4(a)及び図5(a)に示すように、平面視して台形形状で、シート10の幅方向中間部を突出基部として搬送経路Rの上流から下流にかけて突出幅が漸次広がるように突出する板状のガイド11Aを具備している。ガイド11Aは、シート10の片面に配された弾性部材40を境として弾性部材40、41を覆うようにシート10の一方の面部10Aを絞り込んで襞部14を形成する。   As shown in FIGS. 4A and 5A, the first processing means 1A has a trapezoidal shape in plan view, and has an intermediate portion in the width direction of the sheet 10 as a protruding base portion from upstream to downstream of the conveyance path R. The plate-shaped guide 11A is projected so that the protruding width gradually widens. The guide 11 </ b> A narrows one surface portion 10 </ b> A of the sheet 10 so as to cover the elastic members 40 and 41 with the elastic member 40 disposed on one side of the sheet 10 as a boundary, thereby forming the flange portion 14.

第2の加工手段1Bは、図4(b)及び図5(b)に示すように、平面視して三角形形状で、シート10の搬送経路Rの上流から下流にかけて突出幅が漸次広がるように突出する板状のガイド11Bを具備している。ガイド11Bは、弾性部材50、51を覆うように、一方の面部10Aをさらに折り曲げて襞部15を形成するとともに、弾性部材60を覆うように、一方の面部10Aの側縁部を他方の面部10Bの側縁部に合わせて基壁部13を形成する。   As shown in FIGS. 4B and 5B, the second processing means 1B has a triangular shape in plan view so that the protrusion width gradually increases from the upstream side to the downstream side of the conveyance path R of the sheet 10. A protruding plate-like guide 11B is provided. The guide 11B further bends one surface portion 10A so as to cover the elastic members 50, 51 to form the flange portion 15, and also covers the elastic member 60 so that the side edge portion of the one surface portion 10A is the other surface portion. The base wall part 13 is formed according to the side edge part of 10B.

第3の加工手段1Cは、図4(c)及び図5(c)に示すように、平面視して三角形形状で、シート10の搬送経路Rの上流から下流にかけて突出幅が漸次広がるように突出する板状のガイド11Cを具備している。ガイド11Cは、襞部14を襞部15と共に基壁部13の片側に折り曲げる。   As shown in FIGS. 4C and 5C, the third processing unit 1C has a triangular shape in plan view so that the protruding width gradually increases from the upstream side to the downstream side of the conveyance path R of the sheet 10. A protruding plate-like guide 11C is provided. The guide 11 </ b> C bends the flange portion 14 together with the flange portion 15 to one side of the base wall portion 13.

供給手段2は、図3に示すように、帯状のシート10のロール状物100を回転自在に支持する支持軸を備えており、シート10を連続的に繰り出して第1の加工手段1Aに供給する。   As shown in FIG. 3, the supply means 2 includes a support shaft that rotatably supports the roll-like object 100 of the belt-like sheet 10, and continuously feeds the sheet 10 and supplies it to the first processing means 1A. To do.

搬送手段3は、供給手段2から繰り出されたシート10を、加工手段1A〜1Cを経由する搬送経路所Rで搬送するローラー群(図示せず)を備えている。   The conveyance unit 3 includes a roller group (not shown) that conveys the sheet 10 fed from the supply unit 2 through a conveyance path R passing through the processing units 1A to 1C.

図3に示す第1の弾性部材供給手段4A及び第4の弾性部材供給手段4Bは、弾性部材40及び41をそれらのロール状物からそれぞれ連続的に繰り出し、図4(a)に示すようにシート10の上面(片面)の幅方向中間部に供給する。   The first elastic member supply means 4A and the fourth elastic member supply means 4B shown in FIG. 3 continuously draw out the elastic members 40 and 41 from their rolls, respectively, as shown in FIG. 4 (a). The sheet 10 is supplied to an intermediate portion in the width direction on the upper surface (one surface) of the sheet 10.

図3に示す第2の弾性部材供給手段5A及び第4の弾性部材供給手段5Bは、弾性部材50、51をそれらのロール状物からそれぞれ連続的に繰り出し、図4(b)に示すように、絞り込まれたシート10の一方の面部10Aの上面(露呈面)に供給する。   The second elastic member supply means 5A and the fourth elastic member supply means 5B shown in FIG. 3 continuously feed out the elastic members 50 and 51 from their rolls, respectively, as shown in FIG. 4 (b). Then, it is supplied to the upper surface (exposed surface) of one surface portion 10A of the narrowed sheet 10.

図3に示す第3の弾性部材供給手段6は、弾性部材60をそのロール状物から連続的に繰り出し、図4(b)に示すように、シート10の他方の面部10Bに弾性部材40と所定間隔をおき、且つシート10の長手方向に沿うように供給する。   The third elastic member supply means 6 shown in FIG. 3 continuously draws out the elastic member 60 from the roll, and the elastic member 40 and the other surface portion 10B of the sheet 10 as shown in FIG. The sheet is supplied at a predetermined interval and along the longitudinal direction of the sheet 10.

装置1においては、各弾性部材のロール状物は、同じ回転軸に支持されている。これらのロール状物は別の回転軸で支持しもよい。   In the apparatus 1, the rolls of the elastic members are supported on the same rotation shaft. These rolls may be supported by another rotating shaft.

図3に示すように、接着剤の塗工手段7は、第1の加工手段1Aの手前で弾性部材40、41に接着剤を塗布し、第2の加工手段1Bの手間で弾性部材50、51及び60に接着剤を塗布するように配されている。塗工手段7は、これらの弾性部材に間欠的に接着剤を塗布するように設けられている。塗工手段7には、従来から吸収性物品において弾性部材の接合用に用いられているものが使用される。   As shown in FIG. 3, the adhesive application means 7 applies the adhesive to the elastic members 40, 41 before the first processing means 1A, and the elastic member 50, between the second processing means 1B. 51 and 60 are arranged to apply an adhesive. The coating means 7 is provided so as to intermittently apply an adhesive to these elastic members. As the coating means 7, those conventionally used for joining elastic members in absorbent articles are used.

図3に示すように、加圧手段8は、加工手段1A〜1Cの下流側に配設されている。加圧手段8は一対のニップロール81、82を備えており、これらの両ロール間に、基壁部13及び襞部14、15を形成した後の立体ギャザー形成用部材を挿通させることにより、これらを加圧し、基壁部13及び襞部14、15の折曲状態並びに各弾性部材とシートとの接着状態をより強固なものとするようになしてある。   As shown in FIG. 3, the pressurizing means 8 is disposed on the downstream side of the processing means 1A to 1C. The pressurizing means 8 is provided with a pair of nip rolls 81 and 82. By inserting a member for forming a three-dimensional gather after forming the base wall portion 13 and the flange portions 14 and 15 between these two rolls, The base wall portion 13 and the flange portions 14 and 15 are bent and the adhesive state between each elastic member and the sheet is made stronger.

上記装置1を用い、先ず、図3に示すシート供給手段2によって帯状のシート10を繰り出して第1の加工手段1Aに供給し、図4(a)及び図5(a)に示すように、シート10をガイド11Aと31に沿った状態で搬送する。このシート10に合流させるように、第1の弾性部材供給手段4A及び第4の弾性部材供給手段4Bによって、シート10の幅方向中間部の上面にシート10の長手方向に沿って弾性部材40、41を伸張状態で供給する。弾性部材40、41には、第1の加工手段1Aの手前で、塗工手段7によって接着剤を間欠的に塗工する。弾性部材40、41の伸長状態や接着剤の塗工形態は、弾性部材の弾性率と吸収性物品の長さに応じて設定される。   Using the apparatus 1, first, the belt-like sheet 10 is fed out by the sheet supply means 2 shown in FIG. 3 and supplied to the first processing means 1A. As shown in FIGS. 4 (a) and 5 (a), The sheet 10 is conveyed in a state along the guides 11A and 31. The first elastic member supply means 4A and the fourth elastic member supply means 4B are joined by the first elastic member supply means 4A and the fourth elastic member supply means 4B to the upper surface of the intermediate portion in the width direction of the sheet 10 along the longitudinal direction of the sheet 10, 41 is supplied in an expanded state. The adhesive is intermittently applied to the elastic members 40 and 41 by the application means 7 before the first processing means 1A. The stretched state of the elastic members 40 and 41 and the application form of the adhesive are set according to the elastic modulus of the elastic member and the length of the absorbent article.

シート10、弾性部材40、41、前記接着剤には、従来からこの種の生理用ナプキンに用いられているものを特に制限なく用いることができる。   As the sheet 10, the elastic members 40 and 41, and the adhesive, those conventionally used for this type of sanitary napkin can be used without particular limitation.

次に、図4(a)及び図5(a)に示すように、第1の加工手段1Aのガイド11Aによって、シート10に固定された弾性部材40を境としてシート10の一方の面部10Aを絞り込んで襞部14を形成する。   Next, as shown in FIGS. 4A and 5A, the one surface portion 10 </ b> A of the sheet 10 is bounded by the elastic member 40 fixed to the sheet 10 by the guide 11 </ b> A of the first processing means 1 </ b> A. The flange 14 is formed by narrowing down.

次に、図3に示すように、加圧手段8のニップロール81、82の間を通して襞部14内に弾性部材40、41を接着させた後、シート10を弾性部材40、41とともに第2加工手段1Bに搬送する。   Next, as shown in FIG. 3, the elastic members 40 and 41 are bonded in the flange portion 14 through the nip rolls 81 and 82 of the pressurizing means 8, and then the sheet 10 is subjected to the second processing together with the elastic members 40 and 41. Transport to means 1B.

次に、図3に示す第2の弾性部材供給手段5A及び第4の弾性部材供給手段5Bによって、図4(b)及び図5(b)に示すように、ガイド11Aで絞り込まれた一方の面部10Aの上面に、弾性部材50、51をシート10の長手方向に沿って伸長状態で供給するとともに、シート10の他方の面部10Bに、第3の弾性部材供給手段6によって弾性部材40と所定間隔をおき且つシートの長手方向に沿うように弾性部材60を供給する。   Next, the second elastic member supply means 5A and the fourth elastic member supply means 5B shown in FIG. 3, as shown in FIGS. 4 (b) and 5 (b), are narrowed down by the guide 11A. The elastic members 50 and 51 are supplied in an extended state along the longitudinal direction of the sheet 10 to the upper surface of the surface portion 10A, and the elastic member 40 and the elastic member 40 are predetermined on the other surface portion 10B of the sheet 10 by the third elastic member supply means 6. The elastic member 60 is supplied at intervals and along the longitudinal direction of the sheet.

次に、図3に示す第2の加工手段1Bのガイド11Bによって、図4(b)及び図5(b)に示すように、一方の面部10Aをさらに弾性部材50、51を覆うように折り曲げて襞部15を形成する。   Next, with the guide 11B of the second processing means 1B shown in FIG. 3, as shown in FIGS. 4B and 5B, the one surface portion 10A is further bent so as to cover the elastic members 50 and 51. The flange 15 is formed.

次に、図3に示すように、加圧手段8のニップロール81、82の間を通して襞部15内に弾性部材50、51を接着させるとともに、一方の面部10Aと他方の面部10Bとの間に弾性部材60を接着させ、第3の加工手段1Cに搬送する。弾性部材50、51、60の伸長状態や接着剤の塗工形態は、弾性部材の弾性率と吸収性物品の長さに応じて設定される。   Next, as shown in FIG. 3, the elastic members 50 and 51 are bonded in the flange portion 15 through the nip rolls 81 and 82 of the pressurizing means 8, and between the one surface portion 10 </ b> A and the other surface portion 10 </ b> B. The elastic member 60 is adhered and conveyed to the third processing means 1C. The stretched state of the elastic members 50, 51, and 60 and the adhesive application form are set according to the elastic modulus of the elastic member and the length of the absorbent article.

次に、図3に示す第3の加工手段1Cのガイド11Cによって、図4(c)及び図4(c)に示すように、第3の弾性部材60を基準として襞部14を襞部15と共に基壁部13の片側に折り曲げる。   Next, as shown in FIGS. 4 (c) and 4 (c), the guide 11C of the third processing means 1C shown in FIG. At the same time, it is bent to one side of the base wall 13.

その後、図3に示すように、加圧手段8のニップロール81、82の間を通して襞部14及び襞部15の曲げ形状の保持性を高める。   Thereafter, as shown in FIG. 3, the retention of the bent shape of the flange portion 14 and the flange portion 15 is enhanced through the gap between the nip rolls 81 and 82 of the pressurizing means 8.

上述のようにして製造された立体ギャザー形成用部材は、基壁部13の端部がプレカットされ、生理用ナプキンの製造ラインに供給される。そして、図2に示すように、基壁部13の端部が表面シート16とともに吸収性層17の裏側に配され、側面シート19が貼り合わされた液不透過性の裏面シート18に、表面シート16とともに固定される。これらのナプキンの製造工程は、従来と同様の工程が採用される。   In the three-dimensional gather forming member manufactured as described above, the end portion of the base wall portion 13 is precut and supplied to the sanitary napkin manufacturing line. Then, as shown in FIG. 2, the end of the base wall portion 13 is arranged on the back side of the absorbent layer 17 together with the top sheet 16, and the liquid-impermeable back sheet 18 bonded with the side sheet 19 is attached to the top sheet. 16 and fixed together. The manufacturing process of these napkins is the same as the conventional process.

以上説明したように、本実施形態の製造方法によれば、二重の襞部を有する立体ギャザー形成用部材を連続的且つ安定的に製造することができる。   As described above, according to the manufacturing method of the present embodiment, the member for forming a three-dimensional gather having a double collar can be manufactured continuously and stably.

本発明は前記実施形態に制限されるものではなく、本発明の趣旨を逸脱しない範囲において適宜変更することができる。   The present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

本発明は、前記実施形態のようにして得られた立体ギャザー形成用部材の基壁部をさらに折り曲げることによって、図6及び図7に示すナプキン11'のように、基壁部13が屈曲し、その上端部から襞部14、15が内側や外側に折れ曲がった形態の二重立体ギャザー12'を形成することができる。   In the present invention, the base wall portion 13 is bent like the napkin 11 ′ shown in FIGS. 6 and 7 by further bending the base wall portion of the three-dimensional gather forming member obtained as in the above embodiment. The double solid gather 12 'can be formed in such a manner that the flanges 14 and 15 are bent inward or outward from the upper end thereof.

また、襞部14、15の基部に位置する弾性部材60は第1の加工手段で絞り込んだ一方の面部の上に配してもよい。襞部14、15に配置した弾性部材41、51は本数を増やして、平行かつ等間隔に配置してもよいし、また、省略することもできる。   Further, the elastic member 60 located at the base of the flange portions 14 and 15 may be disposed on one surface portion narrowed down by the first processing means. The elastic members 41 and 51 arranged on the flange portions 14 and 15 may be arranged in parallel and at equal intervals by increasing the number of the elastic members 41 and 51, or may be omitted.

前記実施形態では、第1加工工程、第2加工工程の前において各弾性部材をシートに配したが、第1加工工程の前において予め全ての弾性部材をシートに配していてもよい。   In the embodiment, each elastic member is disposed on the sheet before the first processing step and the second processing step. However, all the elastic members may be disposed on the sheet in advance before the first processing step.

本発明においては、前記実施形態におけるように、前記弾性部材に間欠的に接着剤を塗工してシートに固定することが好ましいが、弾性部材に接着剤を連続的に塗工することもできる。また、シート側に接着剤を塗工しておくこともできる。   In the present invention, as in the above-described embodiment, it is preferable to intermittently apply an adhesive to the elastic member and fix it to the sheet, but it is also possible to continuously apply the adhesive to the elastic member. . Also, an adhesive can be applied to the sheet side.

本発明は、前記実施形態のように、二つの襞部を備えた立体ギャザーを備えたナプキンの製造に好適であるが、第1の加工手段を第1と第2の加工手段の間に追加することによって、基壁部から片側に折れ曲がる3以上の襞部を有する立体ギャザーを備えたナプキンを製造することもできる。   The present invention is suitable for manufacturing a napkin having a three-dimensional gather with two collars as in the above embodiment, but the first processing means is added between the first and second processing means. By doing so, it is also possible to manufacture a napkin including a three-dimensional gather having three or more ridges that bend from the base wall portion to one side.

本発明の吸収性物品の製造方法及び装置は、生理用ナプキンの他、使い捨ておむつ、失禁パッド等の他の吸収性物品にも適用できる。
また、本発明の吸収性物品は、前記実施形態のような基壁部から片側に張り出す複数の襞部を有する立体ギャザーを備えていればよく、生理用ナプキンの他、使い捨ておむつ、失禁パッド等の吸収性物品も含まれる。
The manufacturing method and apparatus for absorbent articles of the present invention can be applied to other absorbent articles such as disposable diapers and incontinence pads in addition to sanitary napkins.
In addition, the absorbent article of the present invention may be provided with a three-dimensional gather having a plurality of flanges projecting from the base wall portion to one side as in the above embodiment, and in addition to sanitary napkins, disposable diapers and incontinence pads Absorbent articles such as are also included.

本発明の吸収性物品を生理用ナプキンに適用した一実施形態を模式的に示す斜視図である。It is a perspective view showing typically one embodiment which applied the absorptive article of the present invention to a sanitary napkin. 図1のX−X矢視断面図を模式的に示す図である。It is a figure which shows typically the XX arrow sectional drawing of FIG. 本発明の吸収性物品の製造装置の一実施形態を模式的に示す図である。It is a figure which shows typically one Embodiment of the manufacturing apparatus of the absorbent article of this invention. 図3に示す装置における加工工程を模式的に示す部分平面図であり、(a)は第1の加工手段による加工工程を示す図、(b)は第2の加工手段による加工工程を示す図、(c)は第3の加工手段による加工工程を示す図である。FIG. 4 is a partial plan view schematically showing a processing step in the apparatus shown in FIG. 3, wherein (a) shows a processing step by the first processing means, and (b) shows a processing step by the second processing means. (C) is a figure which shows the process process by the 3rd process means. 図3に示す装置における加工工程を模式的に示す部分断面であり、(a)は第1の加工手段による加工工程を示す図、(b)は第2の加工手段による加工工程を示す図、(c)は第3の加工手段による加工工程を示す図である。FIG. 4 is a partial cross-sectional view schematically showing a processing step in the apparatus shown in FIG. 3, (a) shows a processing step by the first processing means, (b) shows a processing step by the second processing means, (C) is a figure which shows the process process by a 3rd process means. 本発明の吸収性物品の他の実施形態を模式的に示す要部断面図である。It is principal part sectional drawing which shows typically other embodiment of the absorbent article of this invention. 本発明の吸収性物品の他の実施形態を模式的に示す要部断面図である。It is principal part sectional drawing which shows typically other embodiment of the absorbent article of this invention.

符号の説明Explanation of symbols

1 吸収性物品の製造装置
1A 第1の加工手段
1B 第2の加工手段
1C 第3の加工手段
2 シートの供給手段
3 シートの搬送手段
4A 第1の弾性部材の供給手段
4B 第4の弾性部材の供給手段
5A 第2の弾性部材の供給手段
5B 第4の弾性部材の供給手段
6 第3の弾性部材の供給手段
10 シート
10A 一方の面部
10B 他方の面部
11、11' 生理用ナプキン(吸収性物品)
12、12' 立体ギャザー
13 基壁部
14 第1の襞部
15 第2の襞部
40、41、50、51、60 弾性部材
DESCRIPTION OF SYMBOLS 1 Absorbent article manufacturing apparatus 1A First processing means 1B Second processing means 1C Third processing means 2 Sheet supply means 3 Sheet transport means 4A First elastic member supply means 4B Fourth elastic member Supply means 5A Second elastic member supply means 5B Fourth elastic member supply means 6 Third elastic member supply means 10 Sheet 10A One surface portion 10B The other surface portions 11, 11 'Sanitary napkin (absorbent) Goods)
12, 12 'Three-dimensional gather 13 Base wall part 14 First collar part 15 Second collar part 40, 41, 50, 51, 60 Elastic member

Claims (4)

基壁部及び該基壁部から片側に張り出す複数の襞部を有する立体ギャザーを備えた吸収性物品の製造方法であって、
帯状のシートを搬送しながら該シートの片面の幅方向中間部に該シートの長手方向に沿って第1の弾性部材を伸張状態で配し、該第1の弾性部材を境として該シートの一方の面部を、該第1の弾性部材を覆うように絞り込んで第1の襞部を形成し、絞り込まれた前記一方の面部の上面に前記シートの長手方向に沿って第2の弾性部材を伸長状態で配し、前記一方の面部をさらに該第2の弾性部材を覆うように折り曲げて第2の襞部を形成し、前記第1の襞部及び前記第2の襞部を共に前記基壁部の片側に折り曲げて立体ギャザー形成用部材を形成する工程を具備し、
前記シートの他方の面部に前記第1の弾性部材と所定間隔をおくか又は前記一方の面部の露呈面に前記第2の弾性部材と所定間隔をおき、且つ前記シートの長手方向に沿うように第3の弾性部材を配し、前記第3の弾性部材を基準として前記第1及び第2の襞部を共に折り曲げる吸収性物品の製造方法。
A method for producing an absorbent article comprising a base wall and a three-dimensional gather having a plurality of flanges projecting from the base wall to one side,
While transporting the belt-like sheet, the first elastic member is arranged in an extended state along the longitudinal direction of the sheet at the intermediate portion in the width direction on one side of the sheet, and one side of the sheet is separated from the first elastic member as a boundary. The first elastic member is squeezed so as to cover the first elastic member to form a first flange portion, and the second elastic member is extended along the longitudinal direction of the sheet on the upper surface of the squeezed one surface portion. Arranged in a state, the one surface portion is further bent so as to cover the second elastic member to form a second collar portion, and both the first collar portion and the second collar portion are the base wall. Comprising a step of forming a member for forming a three-dimensional gather by bending to one side of the part ,
A predetermined distance from the first elastic member is provided on the other surface portion of the sheet, or a predetermined interval is provided from the second elastic member on the exposed surface of the one surface portion, and along the longitudinal direction of the sheet. The manufacturing method of the absorbent article which arrange | positions a 3rd elastic member and bends together the said 1st and 2nd collar part on the basis of the said 3rd elastic member .
前記第1の襞部又は前記第2の襞部を形成する前に、該第1の襞部又は該第2の襞部内に配されるように前記第1の弾性部材又は前記第2の弾性部材と所定間隔をおいて前記シートの長手方向に沿って該シートに第4の弾性部材を伸長状態で配する請求項1記載の吸収性物品の製造方法。 Before forming the first collar or the second collar, the first elastic member or the second elasticity so as to be arranged in the first collar or the second collar. method of manufacturing an absorbent article according to claim 1 Symbol placement along the longitudinal direction of the sheet at a member with a predetermined interval distribution of the fourth elastic member to the seat in a stretched state. 前記各弾性部材に接着剤を間欠的に塗工して前記シートに固定する請求項1又は2記載の吸収性物品の製造方法。 The manufacturing method of the absorbent article of Claim 1 or 2 which applies an adhesive agent to each said elastic member intermittently, and fixes to the said sheet | seat. 前記立体ギャザー形成用部材の基壁部を更に折り曲げる工程を具備する請求項1〜の何れかに記載の吸収性物品の製造方法。 The manufacturing method of the absorbent article in any one of Claims 1-3 which comprise the process of further bending the base wall part of the said three-dimensional gather formation member.
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0551324U (en) * 1991-12-16 1993-07-09 王子製紙株式会社 Disposable diaper
JPH11104173A (en) * 1997-09-30 1999-04-20 Uni Charm Corp Disposable absorptive article
JP2001145667A (en) * 1999-11-19 2001-05-29 Uni Charm Corp Absorptive article
JP2001245927A (en) * 2000-03-06 2001-09-11 Uni Charm Corp Absorptive article
JP2002306523A (en) * 2001-04-18 2002-10-22 Kao Corp Absorptive article
JP2003033391A (en) * 2001-07-24 2003-02-04 Kao Corp Manufacture method for member for providing three- dimensional gather
JP2003136591A (en) * 2001-11-05 2003-05-14 Kao Corp Method for manufacturing stretchable sheet member
JP2003245306A (en) * 2001-12-20 2003-09-02 Kao Corp Absorptive article
JP2004180787A (en) * 2002-11-29 2004-07-02 Kao Corp Manufacturing method for solid gather forming member
JP2004358109A (en) * 2003-06-09 2004-12-24 Uni Charm Corp Absorbent article

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0551324U (en) * 1991-12-16 1993-07-09 王子製紙株式会社 Disposable diaper
JPH11104173A (en) * 1997-09-30 1999-04-20 Uni Charm Corp Disposable absorptive article
JP2001145667A (en) * 1999-11-19 2001-05-29 Uni Charm Corp Absorptive article
JP2001245927A (en) * 2000-03-06 2001-09-11 Uni Charm Corp Absorptive article
JP2002306523A (en) * 2001-04-18 2002-10-22 Kao Corp Absorptive article
JP2003033391A (en) * 2001-07-24 2003-02-04 Kao Corp Manufacture method for member for providing three- dimensional gather
JP2003136591A (en) * 2001-11-05 2003-05-14 Kao Corp Method for manufacturing stretchable sheet member
JP2003245306A (en) * 2001-12-20 2003-09-02 Kao Corp Absorptive article
JP2004180787A (en) * 2002-11-29 2004-07-02 Kao Corp Manufacturing method for solid gather forming member
JP2004358109A (en) * 2003-06-09 2004-12-24 Uni Charm Corp Absorbent article

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