JP4989088B2 - Method for manufacturing disposable wearing articles - Google Patents

Method for manufacturing disposable wearing articles Download PDF

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JP4989088B2
JP4989088B2 JP2006085089A JP2006085089A JP4989088B2 JP 4989088 B2 JP4989088 B2 JP 4989088B2 JP 2006085089 A JP2006085089 A JP 2006085089A JP 2006085089 A JP2006085089 A JP 2006085089A JP 4989088 B2 JP4989088 B2 JP 4989088B2
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elastic
elastic member
continuous web
laminate
abdomen
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JP2007259886A (en
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豊志 梅林
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Zuiko Corp
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本発明は使い捨て着用物品を製造する方法に関するものである。   The present invention relates to a method of manufacturing a disposable worn article.

たとえば使い捨てオムツやパンツなどの着用物品を連続的に製造する方法として、流れ方向に連続送りされる一対のウエブ間に吸収体を配置する方法が提案されている（特許文献１）。
ＷＯ２００５−０４４１６８号公報（図４） For example, as a method for continuously producing worn articles such as disposable diapers and pants, a method has been proposed in which an absorber is disposed between a pair of webs that are continuously fed in the flow direction (Patent Document 1).
WO2005-044168 (FIG. 4)

以下、特許文献１の使い捨て着用物品の構造および製造方法について説明する。
図４Ａに示すように、オムツ（使い捨て着用物品の一例）１は、胴回り方向Ｌの両端に、たとえば面ファスナなどからなる止着部材５を有し胴回り方向Ｌに伸張性を有する背部２と、胴回り方向Ｌの両端にフラップ部（止着するときの掴み部分）６を有する腹部３と、背部２と腹部３との間に跨がるコア部４とが設けられて構成されている。コア部４には、体内から排出される尿や糞便などの体液を吸収保持する吸収体４ａが設けられている。コア部４の両端部には、フィット性の向上のためにレッグ弾性部材７が設けられていてもよい。 Hereinafter, the structure and manufacturing method of the disposable wearing article of Patent Document 1 will be described.
As shown in FIG. 4A, a diaper (an example of a disposable wearing article) 1 includes a back portion 2 having fastening members 5 made of, for example, hook-and-loop fasteners at both ends in the waistline direction L, and stretchable in the waistline direction L. An abdominal portion 3 having flap portions (gripping portions when fastened) 6 at both ends in the waistline direction L and a core portion 4 straddling the back portion 2 and the abdominal portion 3 are provided. The core portion 4 is provided with an absorbent body 4a that absorbs and holds body fluids such as urine and feces discharged from the body. Leg elastic members 7 may be provided at both ends of the core portion 4 in order to improve fit.

前記オムツ１を製造するには、図４Ｂに示すように、２枚の背部用の背部用連続ウエブ２Ｗ，２Ｗの間に、ボディフィット用弾性部材２ａおよびウエスト用弾性部材２ｂを該連続ウエブ２Ｗの長手方向Ｌに伸張状態で挟み込み、背部用弾性積層体２Ｓを形成する。
その後、図４Ｃに示すように、伸張状態の背部用弾性積層体２Ｓを弛緩させると共に、該背部用弾性積層体２Ｓと腹部用連続ウエブ３Ｗとを並行して搬送し、コア部４を背部用弾性積層体２Ｓと腹部用連続ウエブ３Ｗとに跨がるように取り付ける。前記弛緩により、前記背部２に対応する背部用弾性積層体２Ｓの長さは、伸張状態の長さＬ１００（図４Ｂ）から収縮した長さＬ２００に縮む。その後、個々のオムツ１に切り分けられ、背部用弾性積層体２Ｓおよび腹部用連続ウエブ３Ｗが、それぞれ背部２および腹部３となる。 In order to manufacture the diaper 1, as shown in FIG. 4B, a body-fit elastic member 2a and a waist elastic member 2b are placed between the two continuous webs 2W and 2W for the back. The elastic laminate 2S for the back portion is formed by being sandwiched in the longitudinal direction L.
Thereafter, as shown in FIG. 4C, the elastic layered body 2S for the back portion in the stretched state is relaxed, and the elastic layered body for back portion 2S and the continuous web 3W for the abdomen are conveyed in parallel, and the core portion 4 is used for the back portion. It is attached so as to straddle the elastic laminate 2S and the abdomen continuous web 3W. Due to the relaxation, the length of the elastic layered body 2S for the back corresponding to the back 2 is reduced from the length L100 in the stretched state (FIG. 4B) to the length L200 contracted. Then, it is cut into individual diapers 1, and the elastic laminate 2S for the back and the continuous web 3W for the abdomen become the back 2 and the abdomen 3, respectively.

この製造方法において、コア部４が取り付けられる背部用弾性積層体２Ｓの取付部２ｃは、ボディフィット用弾性部材２ａの切断により、該取付部２ｃの収縮力が低減され、取付部２ｃに皺が生じるのを緩和している。   In this manufacturing method, the attachment portion 2c of the back elastic laminate 2S to which the core portion 4 is attached is reduced in contraction force of the attachment portion 2c by cutting the body fitting elastic member 2a, and the attachment portion 2c is wrinkled. It is mitigating the occurrence.

しかし、背部用弾性積層体２Ｓのウエストの開口部分に相当する端部２ｄには、ウエスト用弾性部材２ｂが貼着されているので、背部用弾性積層体２Ｓを弛緩させると、前記ウエスト用弾性部材２ｂの収縮力により前記取付部２ｃが縮み、該取付部２ｃ部分に皺が生じるのを十分に防止することができない。
そのため、取付部２ｃに生じた皺により、コア部４が綺麗に取り付けられないおそれが生じる。 However, since the waist elastic member 2b is adhered to the end 2d corresponding to the waist opening portion of the back elastic laminate 2S, when the back elastic laminate 2S is relaxed, the waist elasticity It is impossible to sufficiently prevent the attachment portion 2c from contracting due to the contraction force of the member 2b and causing wrinkles in the attachment portion 2c portion.
Therefore, there is a possibility that the core portion 4 cannot be attached neatly due to the wrinkles generated in the attachment portion 2c.

したがって、本発明の主な目的は、吸収体を綺麗に、かつ、確実に取り付けることのできる使い捨て着用物品を製造する方法を提供することである。   Therefore, the main object of the present invention is to provide a method for producing a disposable wearing article that can be neatly and reliably attached with an absorbent body.

前記目的を達成するために、本発明のある使い捨て着用物品を製造する方法は、背部と、腹部と、背部と腹部との間に跨がり、体液を吸収する吸収体が内装されたコア部とを有する使い捨て着用物品を製造する方法であって、背部用の連続ウエブに流れ方向に沿って伸張状態の第１弾性部材を間欠的に配置して背部用弾性積層体を形成する工程と、前記背部用弾性積層体の前記第１弾性部材の伸張を弛緩する工程と、腹部用連続ウエブを前記背部用弾性積層体に並行して搬送する工程と、前記背部用弾性積層体の前記第１弾性部材が存在しない非弾性部と腹部用連続ウエブとの間に跨がるように、かつ、前記第１弾性部材に重ならないように前記コア部を配置する工程と、前記第１弾性部材の伸張を弛緩した後に、ウエスト用の第２弾性部材を前記背部用弾性積層体のウエストの開口部分に沿って前記第１弾性部材を配置した部位および前記非弾性部にわたって連続的に配置する工程とを備える。 To achieve the above object, a method for producing a disposable worn article of the present invention, back and abdomen and, Ri span between the back and abdomen, the core portion where the absorber for absorbing body fluids has been furnished A step of forming a back elastic laminate by intermittently disposing a stretched first elastic member along a flow direction on a back continuous web; Relaxing the extension of the first elastic member of the back elastic laminate, transporting the abdomen continuous web in parallel to the back elastic laminate, and the first of the back elastic laminate. Disposing the core portion so as to straddle between the non-elastic portion where the elastic member does not exist and the abdomen continuous web and not overlapping the first elastic member; and stretching after relaxing the second elastic member for waist And a step of continuously disposed across sites and said placing the first elastic member along the opening portion of the waist of the back elastic laminate inelastic portion.

本発明によれば、コア部の配置される非弾性部には、第１弾性部材が配置されていないので、前記第１弾性部材を弛緩させても該非弾性部に皺が生じるおそれがない。そのため、非弾性部にコア部を綺麗に取り付けることができる。また、非弾性部に皺が生じない為、該非弾性部にコア部が十分に密着し、接着力の低下が生じない。
さらに、コア部の配置後に、ウエスト用の第２弾性部材を配置するので、着用者に対する本着用物品のフィット性が低下することがない。 According to the present invention, since the first elastic member is not disposed in the non-elastic portion where the core portion is disposed, there is no possibility that wrinkles are generated in the non-elastic portion even if the first elastic member is relaxed. Therefore, the core part can be neatly attached to the inelastic part. Moreover, since wrinkles do not occur in the non-elastic portion, the core portion sufficiently adheres to the non-elastic portion, and the adhesive force does not decrease.
Furthermore, since the 2nd elastic member for waists is arrange | positioned after arrangement | positioning of a core part, the fitting property of this wearing article with respect to a wearer does not fall.

なお、“使い捨て着用物品”とは、使い捨てオムツやパンツなどの使い捨て着用物品の半製品および完成品を含む概念である。   The “disposable wearing article” is a concept including semi-finished products and finished products of disposable wearing articles such as disposable diapers and pants.

本発明は、添付の図面を参考にした以下の好適な実施例の説明からより明瞭に理解されるであろう。しかしながら、実施例および図面は単なる図示および説明のためのものであり、本発明の範囲を定めるために利用されるべきものではない。本発明の範囲は請求の範囲のみによって定まる。添付図面において、複数の図面における同一の部品番号は、同一または相当部分を示す。   The invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings, in which: However, the examples and figures are for illustration and description only and should not be used to define the scope of the present invention. The scope of the present invention is defined only by the claims. In the accompanying drawings, the same part numbers in a plurality of drawings indicate the same or corresponding parts.

以下、本発明の一実施例が図面にしたがって説明される。
製造工程：
まず、オムツ１の製造工程の一例について説明する。
図１Ａに示すように、搬送方向Ｌに伸張状態の弾性フィルム１０ａと不織布１０ｂとが貼り合わされて弾性シート１０Ｓが生成された後、該弾性シート１０Ｓが所定の間隔に切断されて第１弾性部材１０が生成される。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Manufacturing process:
First, an example of the manufacturing process of the diaper 1 will be described.
As shown in FIG. 1A, after the elastic film 10a and the nonwoven fabric 10b stretched in the conveying direction L are bonded together to generate the elastic sheet 10S, the elastic sheet 10S is cut at a predetermined interval and the first elastic member 10 is generated.

前記弾性フィルム１０ａとしては、たとえば、ポリウレタン系弾性フィルムや、ポリオレフィン系弾性フィルム、ポリスチレン系弾性フィルム等を用いることができる。また、弾性フィルム１０ａに代えて、搬送方向Ｌに並行する複数本の糸状の天然ゴムや、糸状の合成ゴム、ポリウレタン系弾性糸などを不織布に貼り付けて、弾性シート１０Ｓを生成してもよい。
なお、搬送方向Ｌに略直交する不織布１０ｂの幅Ｈ１は、弾性フィルム１０ａの幅Ｈ２と同程度であってもよいし、不織布１０ｂの幅Ｈ１が弾性フィルム１０ａの幅Ｈ２よりも大きくてもよい。 As the elastic film 10a, for example, a polyurethane elastic film, a polyolefin elastic film, a polystyrene elastic film, or the like can be used. Further, instead of the elastic film 10a, a plurality of thread-like natural rubber parallel to the conveying direction L, thread-like synthetic rubber, polyurethane elastic yarn, or the like may be attached to the nonwoven fabric to generate the elastic sheet 10S. .
In addition, the width H1 of the nonwoven fabric 10b substantially orthogonal to the conveyance direction L may be approximately the same as the width H2 of the elastic film 10a, or the width H1 of the nonwoven fabric 10b may be larger than the width H2 of the elastic film 10a. .

図１Ｂに示すように、第１弾性部材１０が、背部用の連続ウエブ２Ｗに流れ方向Ｌに沿って伸張状態で間欠的に配置されることにより背部用弾性積層体２Ｓが生成される。すなわち、伸張時の流れ方向Ｌの長さＬ１の第１弾性部材１０が、所定の間隔Ｌ３ごとに連続的に配置される。かかる第１弾性部材１０の配置により、背部用弾性積層体２Ｓには第１弾性部材１０が配置されていない非弾性部２ａが生じる。
なお、背部用の連続ウエブ２Ｗの裏面には、止着部材５が貼着されていてもよい。前記止着部材５は、図１ＣのダブルＺ字状に折られたテープ状の部材が、その両端において前記連続ウエブ２Ｗに対して貼着されていてもよい。 As shown in FIG. 1B, the back elastic laminate 2 </ b> S is generated by disposing the first elastic member 10 intermittently in a stretched state along the flow direction L on the back continuous web 2 </ b> W. That is, the first elastic member 10 having a length L1 in the flow direction L at the time of extension is continuously arranged at every predetermined interval L3. Due to the arrangement of the first elastic member 10, a non-elastic part 2 a in which the first elastic member 10 is not arranged is generated in the back elastic laminate 2 </ b> S.
In addition, the fastening member 5 may be affixed on the back surface of the back continuous web 2W. The fastening member 5 may be a tape-like member folded in a double Z shape in FIG. 1C and adhered to the continuous web 2W at both ends thereof.

その後、図２Ａに示すように、前記第１弾性部材１０が流れ方向Ｌに弛緩されることにより、第１弾性部材１０の流れ方向Ｌの長さが伸張状態の長いＬ１（図１Ｂ）から、収縮状態の短いＬ２となる。一方、第１弾性部材１０の配置されていない非弾性部２ａの長さＬ３は、前記第１弾性部材１０の収縮に影響されず長さＬ３のまま維持される。
一方、前記弛緩後の背部用弾性積層体２Ｓに並行して、腹部用連続ウエブ３Ｗが搬送される。 After that, as shown in FIG. 2A, the first elastic member 10 is relaxed in the flow direction L, so that the length of the first elastic member 10 in the flow direction L is extended from the long L1 (FIG. 1B). The contracted state is short L2. On the other hand, the length L3 of the non-elastic portion 2a where the first elastic member 10 is not disposed is maintained at the length L3 without being affected by the contraction of the first elastic member 10.
On the other hand, the abdomen continuous web 3W is conveyed in parallel with the relaxed elastic layer for back 2S.

その後、前記背部用弾性積層体２Ｓの前記非弾性部２ａと、腹部用連続ウエブ３Ｗとの間に跨がるようにコア部４が配置される。コア部４には吸収体４ａが予め内装されている。吸収体４ａは、体液を吸収し保持することができるものであればよく、たとえば、パルプを紛砕したフラッフパルプおよび／または高吸収性ポリマーを有していてもよい。   Then, the core part 4 is arrange | positioned so that it may straddle between the said inelastic part 2a of the said elastic part 2S for back parts, and the continuous web 3W for abdominal parts. The core 4 is preliminarily provided with an absorber 4a. The absorbent body 4a only needs to be able to absorb and retain body fluids, and may have, for example, fluff pulp obtained by pulverizing pulp and / or superabsorbent polymer.

ここで、前述のように、背部用弾性積層体２Ｓの非弾性部２ａの長さＬ３は、前記第１弾性部材１０の収縮に影響されず同じ長さＬ３のまま維持される。そのため、非弾性部２ａには、第１弾性部材１０の収縮による皺が生じない。コア部４は、皺の生じていない非弾性部２ａに配置されるので、コア部４を背部用弾性積層体２Ｓに綺麗に取り付けることができる。しかも、非弾性部２ａには、皺が生じていないので、非弾性部２ａにコア部４が十分に密着し、コア部４と背部用弾性積層体２Ｓとの接着力が低下しない。   Here, as described above, the length L3 of the non-elastic portion 2a of the back elastic laminate 2S is maintained at the same length L3 without being affected by the contraction of the first elastic member 10. Therefore, wrinkles due to contraction of the first elastic member 10 do not occur in the inelastic portion 2a. Since the core part 4 is arrange | positioned at the non-elastic part 2a which the wrinkle does not produce, the core part 4 can be attached neatly to the elastic laminated body 2S for back parts. In addition, since wrinkles are not generated in the non-elastic portion 2a, the core portion 4 is sufficiently adhered to the non-elastic portion 2a, and the adhesive force between the core portion 4 and the back elastic laminate 2S does not decrease.

その後、図２Ｂに示すように、背部用弾性積層体２Ｓにウエスト用の第２弾性部材２ｂが、ウエストの開口部分に相当する端部２ｄ（背部用弾性積層体２Ｓの腹部用連続ウエブ３Ｗとは反対側の端部）に沿って配置される。第２弾性部材２ｂの配置と概ね同時ないし前記配置後、背部用弾性積層体２Ｓの前記端部２ｄが折り返された後に、固着されて、前記第２弾性部材２ｂが連続ウエブ２Ｗの端縁で挟まれて固定される。   Thereafter, as shown in FIG. 2B, the second elastic member 2b for the waist is formed on the back elastic laminate 2S, and the end 2d corresponding to the waist opening (the abdomen continuous web 3W for the back elastic laminate 2S) Are arranged along the opposite end). Almost simultaneously with the arrangement of the second elastic member 2b or after the arrangement, the end 2d of the back elastic laminate 2S is folded and fixed, and the second elastic member 2b is attached to the edge of the continuous web 2W. It is pinched and fixed.

前記第２弾性部材２ｂの配置後、レッグホール１７が切り取られ、図２Ｃに示すように、コア部４を中心に腹部用連続ウエブ３Ｗが背部用弾性積層体２Ｓに向って折り畳まれた後、個々のオムツ１に切り分けられる。   After the arrangement of the second elastic member 2b, the leg holes 17 are cut off, and as shown in FIG. 2C, the abdomen continuous web 3W is folded toward the back elastic layered body 2S around the core part 4, It is cut into individual diapers 1.

製造方法：
つぎに、前記オムツ１の製造方法の一例について説明する。
図３の左下に示すように、背部用の連続ウエブ２Ｗの裏面には、止着部材５が間欠的に貼着される。止着部材５の貼着は、たとえば、ソニックなどからなる貼付装置５１によって行われる。 Production method:
Next, an example of a method for manufacturing the diaper 1 will be described.
As shown in the lower left of FIG. 3, the fastening member 5 is intermittently stuck to the back surface of the back continuous web 2W. The fixing member 5 is attached by, for example, an attaching device 51 made of sonic or the like.

一方、図３の中央下に示すように、弾性フィルム１０ａは、テンションローラ３０によって伸張された後、不織布１０ｂに貼着されて、図１Ａに示す弾性シート１０Ｓが生成される。
弾性シート１０Ｓは、伸張状態が維持されたまま、カッタ３１ｃによって切断されて第１弾性部材１０が生成される。第１弾性部材１０はリピッチドラム３１によって互いの間隔が長さＬ３（図１Ｂ）に広げられる。
前記第１弾性部材１０は、リピッチドラム３１上において、図１Ｂに示す伸張状態が維持されたまま、前記背部用の連続ウエブ２Ｗに貼付されて背部用弾性積層体２Ｓが生成される。 On the other hand, as shown in the lower center of FIG. 3, the elastic film 10 a is stretched by the tension roller 30 and then stuck to the nonwoven fabric 10 b to generate the elastic sheet 10 </ b> S shown in FIG. 1A.
The elastic sheet 10S is cut by the cutter 31c while the stretched state is maintained, and the first elastic member 10 is generated. The first elastic member 10 is expanded to a length L3 (FIG. 1B) by the re-pitch drum 31.
The first elastic member 10 is affixed to the back continuous web 2W while the stretched state shown in FIG. 1B is maintained on the re-pitch drum 31 to generate the back elastic laminate 2S.

前記背部用弾性積層体２Ｓの生成後、図３の弛緩ドラム３２によって第１弾性部材１０が弛緩される。かかる弛緩により、図１Ｂに示す第１弾性部材１０の長さＬ１は、図２Ａに示す長さＬ２に収縮される。なお、非弾性部２ａの長さＬ３は変化しない。弛緩ドラム３２による弛緩工程を経た背部用弾性積層体２Ｓは貼付ドラム３３に送られる。   After the back elastic laminate 2S is generated, the first elastic member 10 is relaxed by the relaxation drum 32 of FIG. Due to such relaxation, the length L1 of the first elastic member 10 shown in FIG. 1B is contracted to the length L2 shown in FIG. 2A. Note that the length L3 of the inelastic portion 2a does not change. The back elastic laminate 2 </ b> S that has undergone the relaxation process by the relaxation drum 32 is sent to the sticking drum 33.

一方、腹部用連続ウエブ３Ｗが貼付ドラム３３に送られることにより、図２Ａに示すように、背部用弾性積層体２Ｓと腹部用連続ウエブ３Ｗとが該貼付ドラム３３上において並行（平行）に搬送される。   On the other hand, when the abdomen continuous web 3W is sent to the affixing drum 33, as shown in FIG. 2A, the back elastic laminate 2S and the abdomen continuous web 3W are conveyed in parallel (parallel) on the affixing drum 33. Is done.

図３の右側に示すように、コア部４はカッタ４０によって所定の長さに切断され、リピッチターンドラム３４に送られる。リピッチターンドラム３４では、隣り合うコア部４の間隔が広げられると共に回転され、貼付ドラム３３に送られる。前記リピッチターンドラム３４による回転角は、９０°であってもよいし、２７０°回転させてもよい。   As shown on the right side of FIG. 3, the core portion 4 is cut into a predetermined length by the cutter 40 and sent to the re-pitch turn drum 34. In the re-pitch turn drum 34, the interval between the adjacent core portions 4 is widened and rotated and sent to the sticking drum 33. The rotation angle by the re-pitch turn drum 34 may be 90 ° or may be rotated by 270 °.

貼付ドラム３３において、図２Ａに示すように、コア部４は、並行して搬送される背部用弾性積層体２Ｓおよび腹部用連続ウエブ３Ｗとの間に跨がるように配置される。   In the sticking drum 33, as shown in FIG. 2A, the core portion 4 is disposed so as to straddle between the back elastic laminate 2S and the abdomen continuous web 3W which are conveyed in parallel.

その後、図２Ｂに示すように、第２弾性部材２ｂが、背部用弾性積層体２Ｓの端部に配置された後、図３に示す第１折込機４１によって、背部用弾性積層体２Ｓの端部２ｄ（図２Ｂ）が折り返されて貼着される。   Thereafter, as shown in FIG. 2B, after the second elastic member 2b is arranged at the end of the back elastic laminate 2S, the first folding machine 41 shown in FIG. Part 2d (FIG. 2B) is folded and pasted.

前記第２弾性部材２ｂの配置後、下流のダイカッタ３５により、背部用弾性積層体２Ｓにレッグホール１７（図２Ｂ）が切り取られ、下流の第２折込機４２に送られる。
第２折込機４２では、図２Ｃに示すように、コア部４を中心に背部用弾性積層体２Ｓと腹部用連続ウエブ３Ｗとが重なるようにコア部４が折り畳まれる。 After the arrangement of the second elastic member 2b, the leg hole 17 (FIG. 2B) is cut out in the back elastic laminate 2S by the downstream die cutter 35 and sent to the second folding machine 42 downstream.
In the second folding machine 42, as shown in FIG. 2C, the core portion 4 is folded so that the back elastic laminate 2S and the abdomen continuous web 3W overlap with each other around the core portion 4.

その後、カッタ３６によって、重なり合った背部用弾性積層体２Ｓおよび腹部用連続ウエブ３Ｗが切断され、個々のオムツ１に切り分けられる。前記切断は、図２Ｃに示すように、止着部材５を二分するように、隣り合うコア部４間の概ね中心が切断され、それぞれ、背部２および腹部３が生成される。   Thereafter, the back elastic laminate 2S and the abdomen continuous web 3W are cut by the cutter 36 and cut into individual diapers 1. As shown in FIG. 2C, in the cutting, the center between the adjacent core parts 4 is cut so as to bisect the fastening member 5, and the back part 2 and the abdominal part 3 are generated, respectively.

止着部材５は、背部用弾性積層体２Ｓと腹部用連続ウエブ３Ｗとが折り畳まれた後に取り付けられてもよい。止着部材５としては、面ファスナの他に、たとえば、接着テープなどを用いてもよい。また、背部２と腹部３とを接着することで、オムツ１をパンツ型に形成してもよい。 Stop Chakubuzai 5 may be attached after a back elastic laminate 2S and abdominal continuous web 3W is folded. As the fastening member 5, for example, an adhesive tape may be used in addition to the hook-and-loop fastener. Further, the diaper 1 may be formed in a pants shape by bonding the back portion 2 and the abdominal portion 3 together.

また、腹部用連続ウエブ３Ｗの背部用弾性積層体２Ｓとは反対側の端部（ウエスト開口部分に相当する部分）を折り返したのち、互いに貼着してもよい。また、腹部用連続ウエブ３Ｗは、複数枚のシートからなる複合シートであってもよいし、腹部用連続ウエブ３Ｗの端部にも第２弾性部材２ｂを設けてもよい。   Further, the end of the abdomen continuous web 3W opposite to the back elastic laminate 2S (the portion corresponding to the waist opening) may be folded back and then adhered to each other. The abdomen continuous web 3W may be a composite sheet made up of a plurality of sheets, or the second elastic member 2b may be provided at the end of the abdomen continuous web 3W.

本発明は、使い捨てオムツやパンツなどの使い捨て着用物品を製造する方法に適用することができる。   The present invention can be applied to a method for producing disposable wearing articles such as disposable diapers and pants.

図１Ａは本発明の一実施例にかかる第１弾性部材の製造工程を示す概略斜視図、図１Ｂは背部用弾性積層体の製造工程を示す工程図、図１Ｃは止着部材の形状を示す概略側面図である。1A is a schematic perspective view showing a manufacturing process of a first elastic member according to an embodiment of the present invention, FIG. 1B is a process drawing showing a manufacturing process of an elastic laminate for a back portion, and FIG. 1C shows a shape of a fastening member. It is a schematic side view. 使い捨て着用物品の製造工程を示す工程図である。It is process drawing which shows the manufacturing process of a disposable wearing article. 同着用物品の製造装置を示す概略側面レイアウト図である。It is a schematic side surface layout diagram which shows the manufacturing apparatus of the wearing article. 図４Ａは従来の使い捨て着用物品を示す伸張状態の概略平面図、図４Ｂおよび図４Ｃは同着用物品の製造工程を示す工程図である。FIG. 4A is a schematic plan view showing a conventional disposable wearing article in an expanded state, and FIGS. 4B and 4C are process diagrams showing a manufacturing process of the wearing article.

符号の説明Explanation of symbols

２：背部
２ａ：非弾性部
２ｂ：第２弾性部材
２Ｓ：背部用弾性積層体
２Ｗ：背部用の連続ウエブ
３：腹部
３Ｗ：腹部用連続ウエブ
４：コア部
１０：第１弾性部材 2: Back part 2a: Non-elastic part 2b: Second elastic member 2S: Elastic laminate for back part 2W: Continuous web for back part 3: Abdominal part 3W: Continuous web for abdominal part 4: Core part 10: First elastic member

Claims (2)

背部と、腹部と、背部と腹部との間に跨がり、体液を吸収する吸収体が内装されたコア部とを有する使い捨て着用物品を製造する方法であって、
背部用の連続ウエブに流れ方向に沿って伸張状態の第１弾性部材を間欠的に配置して背部用弾性積層体を形成する工程と、
前記背部用弾性積層体の前記第１弾性部材の伸張を弛緩する工程と、
腹部用連続ウエブを前記背部用弾性積層体に並行して搬送する工程と、
前記背部用弾性積層体の前記第１弾性部材が存在しない非弾性部と腹部用連続ウエブとの間に跨がるように、かつ、前記第１弾性部材に重ならないように前記コア部を配置する工程と、
前記第１弾性部材の伸張を弛緩した後に、ウエスト用の第２弾性部材を前記背部用弾性積層体のウエストの開口部分に沿って前記第１弾性部材を配置した部位および前記非弾性部にわたって連続的に配置する工程とを備えた使い捨て着用物品を製造する方法。 A back, and abdomen, Ri span between the back and abdomen, a method of absorber for absorbing body fluids to produce a disposable wearing article having a core portion is decorated,
Forming a back elastic laminate by intermittently disposing a stretched first elastic member along the flow direction on a back continuous web;
Relaxing the extension of the first elastic member of the elastic laminate for the back portion;
Transporting the abdomen continuous web in parallel to the back elastic laminate;
The core portion is disposed so as to straddle between the non-elastic portion where the first elastic member of the back elastic laminate does not exist and the abdomen continuous web and does not overlap the first elastic member. And a process of
After relaxing the extension of the first elastic member, the second elastic member for the waist is continuously provided over the portion where the first elastic member is disposed along the opening portion of the waist of the elastic layered body for the back and the inelastic portion. A method for producing a disposable worn article comprising the step of placing the target. 請求項１において、第２弾性部材の配置と概ね同時ないし前記第２弾性部材の配置後、前記背部用弾性積層体の長手方向に沿った端部が折り返された後に、前記第２弾性部材の前記背部用弾性積層体の端縁で挟まれて固定される工程を更に備える。 2. The first elastic member according to claim 1, substantially simultaneously with the arrangement of the second elastic member or after the arrangement of the second elastic member, after the end portion along the longitudinal direction of the elastic layered body for the back portion is folded back, The method further includes a step of being sandwiched and fixed by an edge of the elastic laminate for the back portion .
JP2006085089A 2006-03-27 2006-03-27 Method for manufacturing disposable wearing articles Expired - Fee Related JP4989088B2 (en)

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JP4198307B2 (en) * 2000-07-19 2008-12-17 大王製紙株式会社 Telescopic member mounting method in the manufacture of disposable diapers
JP4083027B2 (en) * 2003-01-31 2008-04-30 株式会社瑞光 Method for producing disposable wearing article
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