JP5958298B2 - Method and apparatus for manufacturing disposable diapers - Google Patents

Method and apparatus for manufacturing disposable diapers Download PDF

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JP5958298B2
JP5958298B2 JP2012253030A JP2012253030A JP5958298B2 JP 5958298 B2 JP5958298 B2 JP 5958298B2 JP 2012253030 A JP2012253030 A JP 2012253030A JP 2012253030 A JP2012253030 A JP 2012253030A JP 5958298 B2 JP5958298 B2 JP 5958298B2
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diaper
tape
post
leg
front body
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JP2014100214A (en
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康伸 小島
康伸 小島
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New Oji Paper Co Ltd
Oji Holdings Corp
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Oji Holdings Corp
Oji Paper Co Ltd
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Description

本発明は,使い捨ておむつの製造方法,及び使い捨ておむつの製造装置に関する。具体的に説明すると,本発明は,使い捨ておむつの製造段階において,おむつの外面に後処理テープを取り付ける際に,おむつの股下部が縮んで外形が崩れることを防止するための工程及び機構を備えるものである。   The present invention relates to a method for manufacturing a disposable diaper and an apparatus for manufacturing a disposable diaper. More specifically, the present invention includes a process and a mechanism for preventing the crotch portion of the diaper from shrinking and the outer shape from collapsing when the post-treatment tape is attached to the outer surface of the diaper in the manufacturing stage of the disposable diaper. Is.

従来より,使い捨ておむつとして,パンツ型のものが知られている。パンツ型の使い捨ておむつは,前身頃と後身頃の両側部が予め接合され,着用者の腰周りに相当する位置にウエスト開口部が形成され,着用者の両脚部に相当する位置にレッグ開口部が形成された構造を有する。また,パンツ型の使い捨ておむつは,ウエスト開口部に近い部位に,伸長状態のウエスト伸縮部材が複数本配置され,レッグ開口部に近い部位に,伸長状態のレッグ伸縮部材が複数本配置されている。このようなウエスト伸縮部材やレッグ伸縮部材は,収縮することによって,ウエスト開口部に近い部位やレッグ開口部に近い部位にギャザーを形成するため,ウエスト伸縮部材やレッグ伸縮部材を配置することで,おむつのフィット性を向上させることができる。   Conventionally, pants-type disposable diapers are known. A pants-type disposable diaper has a waist opening at a position corresponding to the wearer's waist and a leg opening at a position corresponding to the legs of the wearer. Has a formed structure. The pants-type disposable diaper has a plurality of stretched waist stretchable members arranged near the waist opening, and a plurality of stretched leg stretchable members placed near the leg opening. . Such a waist elastic member or leg elastic member contracts to form a gather in a part close to the waist opening or a part close to the leg opening, and by arranging the waist elastic member or leg elastic member, The fit of diapers can be improved.

また,パンツ型の使い捨ておむつは,一般的に,前身頃側又は後身頃側の外表面に,後処理テープが取付けられている。後処理テープは,使い捨ておむつが尿などを吸収して役目を終えた後に,使用済みの使い捨ておむつを廃棄するために用いられる。後処理テープを利用して,使用後の使い捨ておむつを丸めた状態で保持することにより,使用後の使い捨ておむつをコンパクトな状態で廃棄することができる。   In general, a pants-type disposable diaper has a post-treatment tape attached to the outer surface of the front body side or the back body side. The post-treatment tape is used to dispose of used disposable diapers after the disposable diapers have absorbed their urine and finished their functions. By using the post-treatment tape and holding the disposable diaper after use in a rolled state, the disposable diaper after use can be discarded in a compact state.

また,上記のような後処理テープを有するパンツ型使い捨ておむつの製造方法及び製造装置として,例えば特許文献1に開示された方法及び装置が知られている。特許文献1に開示された製造方法では,パンツ型の使い捨ておむつが幅方向に連続したおむつ連続体を,股下部において二つ折りにし,前身頃と後身頃が重なりあった状態で,搬送していく。そして,おむつ連続体のなす搬送面の一方側に設けられたスタンパーロールと,他方側に設けられたアンビルロールとによって,おむつ連続体の前身頃と後身頃が重なった部分を強く挟み込みながら,前身頃又は後身頃の外表面に,後処理テープを取り付けることとしている。   Moreover, as a manufacturing method and manufacturing apparatus of a pants-type disposable diaper having the post-processing tape as described above, for example, a method and an apparatus disclosed in Patent Document 1 are known. In the manufacturing method disclosed in Patent Document 1, a diaper continuous body in which a pants-type disposable diaper is continuous in the width direction is folded in two at the crotch, and the front body and the back body are overlapped and conveyed. . The front part and the back part of the diaper continuum are strongly sandwiched between the stamper roll provided on one side of the conveying surface of the diaper continuum and the anvil roll provided on the other side. Post-treatment tape is to be attached to the outer surface of the back or back body.

特開2006−167195号公報JP 2006-167195 A

ただし,従来の製造方法や製造装置では,おむつ連続体に対して後処理テープを取り付ける際に,後処理テープが取付けられる後身頃と前身頃が重なった部分は,強く挟み込むこととしているものの,おむつ連続体の股下部は解放することとしていた。すなわち,従来の製造装置等は,後処理テープを取り付ける際に,おむつ連続体の股下部を押さえる機構を備えるものではなかった。   However, in the conventional manufacturing method and manufacturing equipment, when the post-treatment tape is attached to the diaper continuous body, the portion where the back body and the front body where the post-treatment tape is attached is strongly pinched, but the diaper The inseam of the continuum was to be released. That is, the conventional manufacturing apparatus does not include a mechanism for pressing the crotch part of the diaper continuous body when the post-processing tape is attached.

しかしながら,上述したように,一般的なパンツ型の使い捨ておむつは,股下部に形成されたレッグ開口部の近傍に沿って,複数のレッグ伸縮部材が伸長状態で固定されている。また,特許文献1等に示されるように,パンツ型の使い捨ておむつを製造するにあたり,後処理テープを取り付ける段階では,すでに,おむつ連続体に,複数のレッグ伸縮部材の連続体が固定されている。このため,従来の製造方法等のように,おむつ連続体に対して後処理テープを取り付ける際に,レッグ伸縮部材が固定された股下部を解放してしまうと,そのレッグ伸縮部材が多少なりとも収縮して,おむつ連続体の股下部が縮み,その結果としておむつ連続体全体に歪みが生じるという問題が生じていた。このように,後処理テープを取り付ける際に,おむつ連続体に歪みが生じると,適切な位置に後処理テープを取り付けることが困難になったり,最終的に完成された使い捨ておむつの製品の形状が悪くなったりするという不具合があった。   However, as described above, in a general pants-type disposable diaper, a plurality of leg stretchable members are fixed in an extended state along the vicinity of the leg opening formed in the crotch part. In addition, as shown in Patent Document 1 and the like, in manufacturing a pants-type disposable diaper, at the stage of attaching a post-treatment tape, a continuous body of a plurality of leg stretchable members is already fixed to the continuous diaper body. . For this reason, if the crotch part to which the leg elastic member is fixed is released when attaching the post-processing tape to the diaper continuous body as in the conventional manufacturing method, the leg elastic member is somewhat As a result, the crotch part of the diaper continuum contracted and the entire diaper continuum was distorted. In this way, when the post-treatment tape is attached, if the diaper continuum is distorted, it becomes difficult to attach the post-treatment tape to an appropriate position, or the shape of the final finished disposable diaper product is There was a problem of getting worse.

このため,現在では,後処理テープを取り付ける際に,おむつ連続体に生じる歪みを防止できる使い捨ておむつの製造方法及び製造装置が求められている。   For this reason, currently, there is a need for a disposable diaper manufacturing method and manufacturing apparatus that can prevent distortion occurring in a diaper continuum when a post-treatment tape is attached.

そこで,本発明の発明者は,上記の従来発明の問題点を解決する手段について鋭意検討した結果,股下部で二つ折りにされ前身頃と後身頃が重なったおむつ連続体に対し,後処理テープを取り付ける際に,レッグ伸縮部材が固定された股下部を解放せずに,この股下部を,前身頃側の面と後身頃側の面の両面から挟み込んで押さえながら搬送することにより,おむつ連続体に生じる歪みを防止できるという知見を得た。そして,本発明者は,上記知見に基づけば,従来技術の課題を解決できることに想到し,本発明を完成させた。
具体的に説明すると,本発明は以下の構成を有する。
Accordingly, the inventors of the present invention have made extensive studies on the means for solving the above-mentioned problems of the conventional invention. As a result, the post-treatment tape is applied to a diaper continuous body folded in two at the crotch portion and overlapping the front and back bodies. The diaper is continuous by holding the crotch part from both the front body side and the back body side while holding it, without releasing the crotch part to which the leg elastic member is fixed. The knowledge that the distortion which a body produces can be prevented was acquired. The inventor has conceived that the problems of the prior art can be solved based on the above knowledge, and has completed the present invention.
More specifically, the present invention has the following configuration.

本発明の第1の側面は,使い捨ておむつの製造方法に関する。
本発明の製造方法により製造される使い捨ておむつは,着用者の腹部に接する前身頃1,着用者の背部に接する後身頃2,及び前身頃1と後身頃2の間に位置する股下部3に長さ方向に区分されたものとなる。また,使い捨ておむつは,股下部3に,着用者の脚部が出されるレッグ開口部4が形成され,前身頃1の外表面又は後身頃2の外表面に,後処理テープ5が取付けられる。
本発明の製造方法は,上記使い捨ておむつに後処理テープ5を取り付ける工程を含む。
この後処理テープ5を取り付ける工程では,レッグ開口部4が形成され後処理テープ5が取付けられる前のおむつ前駆体が,股下部3において長さ方向に二つ折りにされ,前身頃1と後身頃2とが重ね合わされ,長さ方向と直交する幅方向に複数個連続したおむつ連続体10´となっている。
また,後処理テープ5を取り付ける工程には,搬送工程と,テープ取付工程と,押え搬送工程が含まれている。
まず,搬送工程は,上記おむつ連続体10´を,幅方向に一致する方向を搬送方向として,第1の搬送手段21と,この第1の搬送手段21と搬送方向に間隔を置いて配置された第2の搬送手段22と,によって搬送する工程である。
また,テープ取付工程は,搬送行程中に,第1の搬送手段21と第2の搬送手段22の間に設けられたテープ取付手段23によって,おむつ連続体10´の前身頃1の外表面又は後身頃2に対し,後処理テープ5を取り付ける工程である。
そして,押え搬送工程は,上記テープ取付工程を行う時に,第1の搬送手段21と第2の搬送手段22の間に設けられた押え搬送手段24によって,おむつ連続体10´の股下部3の一部又は全部を,前身頃1側の面及び後身頃2側の面の両面から挟んで押さえた状態で,搬送方向に搬送する工程である。
The 1st side of the present invention is related with the manufacturing method of a disposable diaper.
The disposable diaper manufactured by the manufacturing method of the present invention includes a front body 1 in contact with the wearer's abdomen, a back body 2 in contact with the back of the wearer, and a crotch 3 positioned between the front body 1 and the back body 2. It will be divided in the length direction. In the disposable diaper, a leg opening 4 is formed in the crotch part 3 through which the leg of the wearer is put out, and a post-treatment tape 5 is attached to the outer surface of the front body 1 or the outer surface of the rear body 2.
The manufacturing method of this invention includes the process of attaching the post-processing tape 5 to the said disposable diaper.
In the step of attaching the post-treatment tape 5, the diaper precursor before the leg treatment portion 5 is formed and the post-treatment tape 5 is attached is folded in the length direction in the crotch portion 3, and the front body 1 and the back body 2 are overlapped to form a diaper continuous body 10 'continuous in a width direction orthogonal to the length direction.
Further, the process of attaching the post-processing tape 5 includes a transport process, a tape mounting process, and a presser transport process.
First, in the transporting process, the diaper continuum 10 'is arranged with the first transporting unit 21 and the first transporting unit 21 spaced apart in the transporting direction, with the direction coincident with the width direction being the transporting direction. This is a step of conveying by the second conveying means 22.
In the tape attaching step, the outer surface of the front body 1 of the diaper continuous body 10 ′ or the outer surface of the diaper continuous body 10 ′ is formed by the tape attaching means 23 provided between the first conveying means 21 and the second conveying means 22 during the conveying process. This is a process of attaching the post-processing tape 5 to the back body 2.
In the presser transporting process, when the tape attaching process is performed, the presser transporting unit 24 provided between the first transporting unit 21 and the second transporting unit 22 causes the crotch part 3 of the diaper continuous body 10 ′ to move. In this step, a part or the whole is conveyed in the conveying direction in a state where it is sandwiched and pressed from both the front body 1 side surface and the rear body 2 side surface.

上記のように,本発明では,後処理テープ5を取り付ける工程の際に,押え搬送手段24によって,おむつ連続体10´の股下部3を,前身頃1側の面及び後身頃2側の面の両面から挟んで押さえた状態で,搬送方向に搬送することとしている。上述したように,おむつ連続体10´の股下部3には,一般的に,レッグ開口部4の近傍にレッグ伸縮部材が伸長状態で配設されている。このため,本発明のように,後処理テープ5をおむつ連続体10´に取り付ける際に,おむつ連続体10´の股下部3を押さえ,レッグ伸縮部材が収縮しないようにして,おむつ連続体10´を搬送することにより,おむつ連続体10´がレッグ伸縮部材の収縮力を受けて,部分的に縮んだり歪んだりする事態を防止できる。その結果,本発明の製造方法により製造された使い捨ておむつは,後処理テープが適切な位置に取付けられ,かつ製品の外観も歪むことなく美麗なものとなる。   As described above, in the present invention, the crotch part 3 of the diaper continuous body 10 ′ is moved to the front body 1 side surface and the back body 2 side surface by the presser conveying means 24 during the step of attaching the post-processing tape 5. In this state, the sheet is conveyed in the conveying direction while being pressed from both sides. As described above, in the crotch part 3 of the diaper continuous body 10 ′, the leg stretchable member is generally disposed in the vicinity of the leg opening 4 in an extended state. Therefore, as in the present invention, when the post-treatment tape 5 is attached to the diaper continuous body 10 ', the crotch part 3 of the diaper continuous body 10' is pressed so that the leg elastic member does not contract so that the diaper continuous body 10 By conveying ′, it is possible to prevent the diaper continuous body 10 ′ from being contracted or distorted due to the contraction force of the leg stretchable member. As a result, the disposable diaper manufactured by the manufacturing method of the present invention has a beautiful post-treatment tape attached at an appropriate position and without distorting the appearance of the product.

本発明に係る製造方法の搬送工程において,第1の搬送手段21と第2の搬送手段22は,おむつ連続体10´の前身頃1と後身頃2が重なった部分と,股下部3を,前身頃1側の面及び後身頃2側の面の両面から挟んで押さえた状態で,搬送方向に搬送するものであることが好ましい。   In the transporting process of the manufacturing method according to the present invention, the first transporting means 21 and the second transporting means 22 include a portion where the front body 1 and the back body 2 of the diaper continuous body 10 ′ overlap, and the crotch 3. It is preferable that the sheet is conveyed in the conveying direction in a state where it is sandwiched and pressed from both the front body 1 side surface and the back body 2 side surface.

上記のように,第1の搬送手段21と第2の搬送手段22が,テープ取付手段23の搬送方向上流側と下流側において,おむつ連続体10´の全体を挟んで押さえ込み,張力を付加した状態で,おむつ連続体10´を搬送することにより,おむつ連続体10´に後処理テープ5を取り付ける際,縮みや歪みが生じることをさらに効果的に防止できる。   As described above, the first transporting means 21 and the second transporting means 22 press the entire diaper continuous body 10 ′ between the upstream side and the downstream side in the transporting direction of the tape mounting means 23, and apply tension. By conveying the diaper continuous body 10 'in the state, when the post-processing tape 5 is attached to the diaper continuous body 10', shrinkage and distortion can be more effectively prevented.

本発明に係る製造方法において,上記おむつ前駆体は,レッグ開口部4を形成する左右の側縁に沿った部位に,一又は複数のレッグ伸縮部材6が伸長状態で固定されたものであることが好ましい。
この場合に,押え搬送工程において,押え搬送手段24は,おむつ前駆体が幅方向に複数個連続したおむつ連続体10´を,股下部3及びレッグ伸縮部材6が固定された部位を含む領域において,前身頃1側の面及び後身頃2側の面の両面から挟んで押さえた状態で,搬送方向に搬送するものであることが好ましい。
In the manufacturing method according to the present invention, the diaper precursor is one in which one or a plurality of leg stretchable members 6 are fixed in an extended state at portions along the left and right side edges forming the leg opening 4. Is preferred.
In this case, in the presser transporting step, the presser transporting means 24 includes a diaper continuous body 10 ′ in which a plurality of diaper precursors are continuous in the width direction, in a region including a portion where the crotch 3 and the leg elastic member 6 are fixed. It is preferable that the sheet is conveyed in the conveying direction in a state of being sandwiched and pressed from both the front body 1 side surface and the rear body 2 side surface.

上記のように,レッグ開口部4の近傍の部位に,レッグ伸縮部材6が配設されている場合,このレッグ伸縮部材6は,股下部3だけでなく,前身頃1及び後身頃2に区分される領域にも存在している場合がある。この場合であっても,押え搬送手段24は,レッグ伸縮部材6が収縮して,おむつ連続体10´に歪みが生じることを防ぐために,少なくともレッグ伸縮部材6が配設された領域を含む範囲で,おむつ連続体10´を搬送面の両側から押さえて搬送するものであることが好ましい。これにより,レッグ伸縮部材6の収縮力の影響を受け,製造途中の段階で,おむつ連続体10´に歪みが生じることをより確実に防止できる。   As described above, when the leg elastic member 6 is disposed in the vicinity of the leg opening 4, the leg elastic member 6 is divided not only into the crotch part 3 but also into the front body 1 and the back body 2. May also exist in the region being Even in this case, the presser conveying means 24 includes a range including at least the region where the leg elastic member 6 is disposed in order to prevent the leg elastic member 6 from contracting and distorting the diaper continuous body 10 '. Therefore, it is preferable that the diaper continuous body 10 ′ is conveyed while being pressed from both sides of the conveying surface. Accordingly, it is possible to more reliably prevent the diaper continuous body 10 ′ from being distorted in the middle of manufacturing due to the influence of the contraction force of the leg elastic member 6.

本発明に係る製造方法の押え搬送工程において,押え搬送手段24は,少なくともテープ取付手段23が後処理テープ5を取り付ける領域は,押さえないことが好ましい。   In the presser transporting step of the manufacturing method according to the present invention, it is preferable that the presser transporting unit 24 does not press at least a region where the tape mounting unit 23 attaches the post-processing tape 5.

上記のように,押え搬送手段24は,後処理テープ5が取り付けられる領域を空けて,おむつ連続体10´を押さえていることにより,テープ取付手段23が効率的に後処理テープ5を取り付けることができるようになる。   As described above, the pressing and conveying means 24 opens the area where the post-processing tape 5 is attached and presses the diaper continuous body 10 ′ so that the tape attaching means 23 efficiently attaches the post-processing tape 5. Will be able to.

本発明の第2の側面は,使い捨ておむつの製造装置に関する。本発明の製造装置は,基本的に,上記した第1の側面に係る使い捨ておむつの製造方法を,実行することができる。
すなわち,本発明の製造装置により製造される使い捨ておむつは,着用者の腹部に接する前身頃1,着用者の背部に接する後身頃2,及び前身頃1と後身頃2の間に位置する股下部3に長さ方向に区分されたものとなる。また,使い捨ておむつは,股下部3に,着用者の脚部が出されるレッグ開口部4が形成され,前身頃1の外表面又は後身頃2の外表面に,後処理テープ5が取付けられる。
本発明の製造装置は,使い捨ておむつに後処理テープ5を取り付ける工程を行う。この後処理テープ5を取り付ける工程では,レッグ開口部4が形成され後処理テープ5が取付けられる前のおむつ前駆体が,股下部3において前記長さ方向に二つ折りにされ,前身頃1と後身頃2とが重ね合わされ,長さ方向と直交する幅方向に複数個連続したおむつ連続体10´となっている。
本発明の製造装置は,第1の搬送手段21と,第2の搬送手段22と,テープ取付手段23と,押え搬送手段24と,を備える。
第1の搬送手段21は,おむつ連続体10´を,幅方向に一致する方向を搬送方向として搬送する。
第2の搬送手段22は,第1の搬送手段21と搬送方向に間隔を置いて配置され,おむつ連続体10´を搬送方向に搬送する。
テープ取付手段23は,第1の搬送手段21と第2の搬送手段22の間に設けられ,おむつ連続体10´の前身頃1の外表面又は後身頃2に対し,後処理テープ5を取り付ける。
そして,押え搬送手段24は,第1の搬送手段21と第2の搬送手段22の間に設けられ,おむつ連続体10´の股下部3の一部又は全部を,前身頃1側の面及び後身頃2側の面の両面から挟んで押さえた状態で,搬送方向に搬送する。
The 2nd side surface of this invention is related with the manufacturing apparatus of a disposable diaper. The production apparatus of the present invention can basically execute the above-described method for producing a disposable diaper according to the first aspect.
That is, the disposable diaper manufactured by the manufacturing apparatus of the present invention includes a front body 1 that contacts the wearer's abdomen, a back body 2 that contacts the back of the wearer, and a crotch part positioned between the front body 1 and the back body 2. 3 is divided in the length direction. In the disposable diaper, a leg opening 4 is formed in the crotch part 3 through which the leg of the wearer is put out, and a post-treatment tape 5 is attached to the outer surface of the front body 1 or the outer surface of the rear body 2.
The manufacturing apparatus of this invention performs the process of attaching the post-processing tape 5 to a disposable diaper. In the step of attaching the post-treatment tape 5, the diaper precursor before the leg treatment portion 5 is formed and the diaper precursor before the attachment of the post-treatment tape 5 is folded in the length direction at the crotch portion 3, The body 2 is overlapped to form a diaper continuous body 10 ′ in which a plurality of diapers are continuous in the width direction orthogonal to the length direction.
The manufacturing apparatus of the present invention includes a first transport unit 21, a second transport unit 22, a tape attachment unit 23, and a presser transport unit 24.
The 1st conveyance means 21 conveys diaper continuous body 10 'by making the direction which corresponds to the width direction into a conveyance direction.
The 2nd conveyance means 22 is arrange | positioned at intervals in the conveyance direction with the 1st conveyance means 21, and conveys diaper continuous body 10 'in a conveyance direction.
The tape attaching means 23 is provided between the first conveying means 21 and the second conveying means 22, and attaches the post-treatment tape 5 to the outer surface of the front body 1 or the back body 2 of the diaper continuous body 10 '. .
The presser conveying means 24 is provided between the first conveying means 21 and the second conveying means 22, and a part or all of the crotch part 3 of the diaper continuous body 10 ′ is disposed on the front body 1 side surface and The sheet is conveyed in the conveying direction while being sandwiched and pressed from both sides of the rear body 2 side.

上記構成のように,後処理テープ5をおむつ連続体10´に取り付ける時に,押え搬送手段24が,おむつ連続体10´の股下部3を押さえ,レッグ伸縮部材が収縮しないようにして,おむつ連続体10´を搬送することにより,おむつ連続体10´がレッグ伸縮部材の収縮力を受けて,部分的に縮んだり歪んだりする事態を防止できる。   As described above, when the post-processing tape 5 is attached to the diaper continuous body 10 ', the presser conveying means 24 presses the crotch part 3 of the diaper continuous body 10' so that the leg elastic member does not contract, By conveying the body 10 ′, it is possible to prevent the diaper continuous body 10 ′ from being partially contracted or distorted due to the contraction force of the leg elastic member.

本発明の使い捨ておむつの製造方法及び製造装置では,後処理テープ5を取り付ける時に,押え搬送手段24によって,おむつ連続体10´の股下部3を,前身頃1側の面及び後身頃2側の面の両面から挟んで押さえた状態で,搬送方向に搬送することとしている。おむつ連続体10´の股下部3には,一般的に,レッグ開口部4の近傍にレッグ伸縮部材が伸長状態で配設されている。このため,本発明のように,後処理テープ5をおむつ連続体10´に取り付ける際に,おむつ連続体10´の股下部3を押さえ,レッグ伸縮部材が収縮しないようにして,おむつ連続体10´を搬送することにより,おむつ連続体10´がレッグ伸縮部材の収縮力を受けて,部分的に縮んだり歪んだりする事態を防止できる。その結果,本発明の製造方法及び製造装置により製造された使い捨ておむつは,後処理テープが適切な位置に取付けられ,かつ製品の外観も歪むことなく美麗なものとなる。   In the manufacturing method and the manufacturing apparatus of the disposable diaper of the present invention, when attaching the post-processing tape 5, the crotch part 3 of the diaper continuous body 10 ′ is moved between the front body 1 side surface and the back body 2 side by the presser conveying means 24. The sheet is conveyed in the conveying direction while being pressed from both sides of the surface. In the crotch part 3 of the diaper continuous body 10 ′, a leg elastic member is generally disposed in the vicinity of the leg opening 4 in an extended state. Therefore, as in the present invention, when the post-treatment tape 5 is attached to the diaper continuous body 10 ', the crotch part 3 of the diaper continuous body 10' is pressed so that the leg elastic member does not contract so that the diaper continuous body 10 By conveying ′, it is possible to prevent the diaper continuous body 10 ′ from being contracted or distorted due to the contraction force of the leg stretchable member. As a result, the disposable diaper manufactured by the manufacturing method and manufacturing apparatus of the present invention is beautiful without the post-processing tape being attached at an appropriate position and the appearance of the product being distorted.

図1は,本発明に係る使い捨ておむつの製造工程の概要を示したフロー図である。FIG. 1 is a flowchart showing an outline of a manufacturing process of a disposable diaper according to the present invention. 図2は,おむつ連続体に後処理テープを取り付ける工程(ステップS9)を概略的に示した平面図である。FIG. 2 is a plan view schematically showing a step of attaching the post-processing tape to the diaper continuous body (step S9). 図3は,おむつ連続体に後処理テープを取り付ける工程(ステップS9)を概略的に示した側面図である。FIG. 3 is a side view schematically showing a step of attaching the post-processing tape to the diaper continuous body (step S9).

以下,図面を用いて本発明を実施するための形態について説明する。本発明は,以下に説明する形態に限定されるものではなく,以下の形態から当業者が自明な範囲で適宜修正したものも含む。
なお,本願明細書において,使い捨ておむつの「長さ方向」というときは,縦長に形成された使い捨ておむつの長さ方向であって,使い捨ておむつの前身頃と後身頃を,股下部を通って結ぶ方向を意味する。また,「幅方向」とは,縦長に形成された使い捨ておむつの幅方向であって,上記長さ方向に平面的に直交する方向を意味する。
Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below, but includes those appropriately modified by those skilled in the art from the following embodiments.
In the specification of the present application, the “length direction” of the disposable diaper is the length direction of the disposable diaper formed vertically, and connects the front body and the back body of the disposable diaper through the crotch. Means direction. Further, the “width direction” means a width direction of the disposable diaper formed in a vertically long shape and is a direction orthogonal to the length direction in a plane.

図1は,使い捨ておむつ10が製造される一連の工程を概念的に示したフロー図である。図1では,矢印Aで示された方向が,おむつを構成する各種部材が搬送される搬送方向となっている。図1は,特に,パンツ型の使い捨ておむつ10を製造する方法の実施形態を示している。図1に示されるように,各種部材の搬送方向は,製造された使い捨ておむつの幅方向に一致する。また,搬送方向に平面的に直行する方向は,製造された使い捨ておむつの長さ方向に一致する。このため,使い捨ておむつを構成する各種部材は,おむつの幅方向に連続した状態で,この幅方向に一致する方向を搬送方向として搬送される。   FIG. 1 is a flowchart conceptually showing a series of steps in which the disposable diaper 10 is manufactured. In FIG. 1, the direction indicated by the arrow A is the transport direction in which various members constituting the diaper are transported. FIG. 1 particularly shows an embodiment of a method for manufacturing a pants-type disposable diaper 10. As FIG. 1 shows, the conveyance direction of various members corresponds with the width direction of the manufactured disposable diaper. Moreover, the direction orthogonal to the conveyance direction in a plane coincides with the length direction of the manufactured disposable diaper. For this reason, the various members which comprise a disposable diaper are conveyed by making the direction which corresponds to this width direction into a conveyance direction in the state which followed the width direction of the diaper.

図1に示されるように,本発明により製造されるパンツ型の使い捨ておむつ10は,前身頃1と後身頃2が,幅方向両側部に位置するサイドシール部1a,2aにおいて予め接合されており,着用者の両脚部に相当する位置にレッグ開口部4と,着用者の腰周りに相当する位置にウエスト開口部7が形成されている。また,使い捨ておむつ10は,レッグ開口部4に沿った部位に,複数のレッグ伸縮部材6が固定されており,ウエスト開口部7に沿った部位に,複数のウエスト伸縮部材8が固定されている。また,使い捨ておむつ10の前身頃1と後身頃2には,ウエスト伸縮部材8が配置された部位よりも股下部3寄りの部位に,複数のタミー伸縮部材9が固定される。さらに,本発明により製造される使い捨ておむつ10は,後身頃2の外表面に,使用済みとなったおむつを丸めて保持するために利用される後処理テープ5が取り付けられている。なお,この後処理テープ5は,使い捨ておむつ10の前身頃1の外表面に取り付けることも可能である。以下,本発明の一実施形態として,上記構成を持つパンツ型の使い捨ておむつの製造方法及び製造装置を例に挙げて,説明を行う。   As shown in FIG. 1, a pants-type disposable diaper 10 manufactured according to the present invention has a front body 1 and a back body 2 joined in advance at side seal portions 1a and 2a located on both sides in the width direction. The leg opening 4 is formed at a position corresponding to both legs of the wearer, and the waist opening 7 is formed at a position corresponding to the circumference of the wearer's waist. In the disposable diaper 10, a plurality of leg elastic members 6 are fixed to a part along the leg opening 4, and a plurality of waist elastic members 8 are fixed to a part along the waist opening 7. . Further, in the front body 1 and the back body 2 of the disposable diaper 10, a plurality of tammy expansion / contraction members 9 are fixed to a portion closer to the crotch 3 than a portion where the waist expansion / contraction member 8 is disposed. Furthermore, the disposable diaper 10 manufactured according to the present invention is provided with a post-treatment tape 5 that is used to roll and hold a used diaper on the outer surface of the back body 2. The post-treatment tape 5 can be attached to the outer surface of the front body 1 of the disposable diaper 10. Hereinafter, as an embodiment of the present invention, a manufacturing method and a manufacturing apparatus of a pants-type disposable diaper having the above configuration will be described as an example.

図1に示されるように,本実施形態に係る製造方法では,まず,図示しない原反ロールからアウターシート11の連続体が繰り出されて,おむつの製造ラインに導入される(ステップS1)。アウターシート11は,使い捨ておむつを構成するシート部材のうち,最も外側に位置するシート部材である。アウターシート11としては,例えば,ポリエチレン,ポリプロピレン,又はポリエステルのような熱可塑性樹脂からなる不織布又は湿式不織布を用いればよい。   As shown in FIG. 1, in the manufacturing method according to the present embodiment, first, a continuous body of outer sheets 11 is unwound from an unillustrated raw roll and introduced into a diaper manufacturing line (step S1). The outer sheet | seat 11 is a sheet | seat member located in the outermost side among the sheet | seat members which comprise a disposable diaper. As the outer sheet 11, for example, a nonwoven fabric or a wet nonwoven fabric made of a thermoplastic resin such as polyethylene, polypropylene, or polyester may be used.

続いて,アウターシート11の連続体の肌対向面(装着時に着用者の肌に対向する面)に,各種弾性伸縮部材の連続体が,伸長状態で固定される(ステップS2)。すなわち,図1に示されるように,アウターシート11の連続体上には,その搬送方向に沿って,レッグ伸縮部材6,ウエスト伸縮部材8,及びタミー伸縮部材9が,それぞれ複数本ずつ配置される。ウエスト伸縮部材8は,アウターシート11の前身頃1と後身頃2を構成する部位のそれぞれに,搬送方向と直交する方向の両端縁から所定間隔空けて,配置される。また,タミー伸縮部材9は,アウターシート11の前身頃1と後身頃2を構成する部位のそれぞれに,ウエスト伸縮部材8よりも股下部3寄りの位置に配置される。また,レッグ伸縮部材6は,股下部3の前身頃1側と後身頃2側の部位のそれぞれに,蛇行するようにして,配置される。特に,前身頃1側のレッグ伸縮部材6と,後身頃2側のレッグ伸縮部材6は,搬送方向にみて,一定周期で近づき,一定周期で離れるように蛇行している。このため,前身頃1側のレッグ伸縮部材6と,後身頃2側のレッグ伸縮部材6が離れた箇所には,隙間が形成されている。各種弾性伸縮部材6,8,9は,例えばホットメルト接着剤などによって固定すればよい。各種弾性伸縮部材6,8,9は,例えば,コームガンといった手法によりホットメルト接着剤が直接塗布されることが好ましい。また,レッグ伸縮部材6と,タミー伸縮部材9は,後述するステップにおいて,切断されて部分的に不連続とされる。このため,レッグ伸縮部材6とタミー伸縮部材9を接合する際には,部分的に不連続とすることができるように,接合部分と非接合部分が,搬送方向に交互に連続するように接着剤を塗布することが好ましい。なお,図1では,便宜的に,レッグ伸縮部材6,ウエスト伸縮部材8,及びタミー伸縮部材9を接合する工程を,一工程として示している。ただし,各種弾性伸縮部材6,8,9は,同時に接合される必要はなく,各種弾性伸縮部材6,8,9のそれぞれは,時系列的に別々の段階で,アウターシート11の連続体に接合されればよい。   Subsequently, the continuous body of various elastic elastic members is fixed in an extended state on the skin-facing surface of the continuous body of the outer sheet 11 (surface facing the wearer's skin when worn) (step S2). That is, as shown in FIG. 1, a plurality of leg elastic members 6, waist elastic members 8, and tammy elastic members 9 are arranged on the continuous body of the outer sheet 11 along the conveying direction. The The waist elastic members 8 are arranged at predetermined intervals from both ends of the outer sheet 11 in the direction orthogonal to the conveying direction, in each of the parts constituting the front body 1 and the back body 2 of the outer sheet 11. Further, the tammy expansion / contraction member 9 is disposed at a position closer to the crotch part 3 than the waist expansion / contraction member 8 in each of the parts constituting the front body 1 and the back body 2 of the outer sheet 11. Further, the leg stretchable member 6 is disposed so as to meander in each of the front body 1 side and the back body 2 side of the crotch 3. In particular, the leg elastic member 6 on the front body 1 side and the leg elastic member 6 on the back body 2 side meander in such a manner that they approach each other at a constant period and leave at a constant period as viewed in the transport direction. For this reason, a gap is formed at a location where the leg elastic member 6 on the front body 1 side and the leg elastic member 6 on the rear body 2 side are separated. What is necessary is just to fix the various elastic expansion-contraction members 6, 8, and 9 with a hot-melt adhesive etc., for example. It is preferable that the hot-melt adhesive is directly applied to the various elastic stretchable members 6, 8, and 9 by a technique such as a comb gun, for example. Further, the leg elastic member 6 and the tammy elastic member 9 are cut and partially discontinuous in a step described later. For this reason, when joining the leg stretchable member 6 and the tammy stretchable member 9, the bonded portions and the non-bonded portions are bonded so that they are alternately continued in the transport direction so that they can be partially discontinuous. It is preferable to apply an agent. In FIG. 1, for convenience, the step of joining the leg elastic member 6, the waist elastic member 8, and the tammy elastic member 9 is shown as one step. However, the various elastic elastic members 6, 8, 9 do not need to be joined at the same time, and each of the various elastic elastic members 6, 8, 9 is formed into a continuous body of the outer sheet 11 at different stages in time series. What is necessary is just to join.

その後,アウターシート11の連続体に固定されたレッグ伸縮部材6の連続体と,タミー伸縮部材9の連続体の上に,図示しない原反ロールから繰り出されたインナーシート12の連続体が貼合される(ステップS3)。これにより,レッグ伸縮部材6の連続体と,タミー伸縮部材9の連続体は,アウターシート11の連続体とインナーシート12の連続体の間に挟持される。インナーシート12は,アウターシート11の肌対向面側に位置し,着用者の肌に直接接するシート部材である。インナーシート12としては,アウターシート11と同様に,例えば,ポリエチレン,ポリプロピレン,又はポリエステルのような熱可塑性樹脂からなる不織布又は湿式不織布を用いればよい。インナーシート12の連続体は,例えばカーテンスプレーといった手法によりホットメルト接着剤が全面的に塗布された状態で,アウターシート11の連続体に接合されることが好ましい。   Then, the continuum of the inner sheet 12 fed out from the raw roll (not shown) is bonded onto the continuum of the leg stretchable member 6 fixed to the continuum of the outer sheet 11 and the continuum of the tammy stretchable member 9. (Step S3). Thereby, the continuous body of the leg elastic member 6 and the continuous body of the Tammy elastic member 9 are sandwiched between the continuous body of the outer sheet 11 and the continuous body of the inner sheet 12. The inner sheet 12 is a sheet member that is located on the skin facing surface side of the outer sheet 11 and is in direct contact with the wearer's skin. As the inner sheet 12, similarly to the outer sheet 11, for example, a nonwoven fabric or a wet nonwoven fabric made of a thermoplastic resin such as polyethylene, polypropylene, or polyester may be used. The continuum of the inner sheet 12 is preferably joined to the continuum of the outer sheet 11 in a state where the hot melt adhesive is applied to the entire surface by a technique such as curtain spray.

その後,レッグ伸縮部材6の連続体と,タミー伸縮部材9の連続体は,アウターシート11の連続体とインナーシート12の連続体の間に挟持された状態で,搬送方向と直交する方向に沿った切断線によって間欠的に切断される(ステップS4)。前述したように,レッグ伸縮部材6の連続体と,タミー伸縮部材9の連続体は,アウターシート11の連続体とインナーシート12の連続体の間に,接合部分と非接合部分が交互に連続するように,挟持固定されている。このため,レッグ伸縮部材6とタミー伸縮部材9を,非接合部において切断することで,間欠的に不連続となる。   After that, the continuum of the leg stretchable member 6 and the continuum of the Tammy stretchable member 9 are sandwiched between the continuum of the outer sheet 11 and the continuum of the inner sheet 12 along the direction orthogonal to the conveying direction. It is cut intermittently by the cut line (step S4). As described above, in the continuous body of the leg elastic member 6 and the continuous body of the Tammy elastic member 9, the joined portion and the non-joined portion are alternately arranged between the continuous body of the outer sheet 11 and the continuous body of the inner sheet 12. It is clamped and fixed so that it does. For this reason, the leg elastic member 6 and the Tammy elastic member 9 are intermittently discontinuous by cutting at the non-joining part.

その後,インナーシート12の連続体の上(肌対向面側)に,吸収性本体13を貼合する(ステップS5)。吸収性本体13は,使い捨ておむつの股下部3を中心として,前身頃1及び後身頃2に掛けて配設される部材であり,尿などの液体を吸収し保持する機能を持つ。吸収性本体13を形成する工程の図示は省略するが,公知の工程によって形成すればよい。吸収性本体13は,例えば,液透過性のトップシートと,液不透過性のバックシートと,トップシートとバックシートの間に介在する吸収体を有している。このため,尿などの液体は,トップシートを透過して,吸収体に吸収保持され,バックシートによって外部への漏出が阻止される。トップシートを構成する液透過性材料としては,例えば,織布,不織布,多孔性フィルを採用することができる。特に,液透過性材料としては,ポリプロピレン,ポリエチレン,ポリエステル,ナイロンのような熱可塑性樹脂からなる不織布に親水化処理を施したものを用いることが好ましい。また,バックシートを構成する液不透過性材料としては,例えば,ポリエチレン等の樹脂からなる液不透過性フィルム等を採用することができる。特に,液不透過性材料としては,微多孔性ポリエチレンフィルムを用いることが好ましい。また,吸収体は,着用者の尿や体液を吸収し保持するための吸収性材料を,ティシュ等のコアラップシートによって肌当接面側及び肌非当接面側から被覆することによって構成されている。吸収性材料としては,例えば,フラッフパルプ及び高吸水性ポリマー(SuperAbsorbentPolymer;「SAP」)を混合してマット状にしたものを採用できる。フラッフパルプの例は,木材パルプや非木材パルプを綿状に解繊したものである。高吸水性ポリマーの例は,ポリアクリル酸ナトリウムである。また,コアラップシートは,親水性シートで構成されている。親水性シートとしては,例えば,ティシュ,吸収紙,又は親水化処理を行った不織布を用いることができる。これらのトップシート,バックシート,及び吸収体を備える吸収性本体13は,レッグ伸縮部材6の連続体及びタミー伸縮部材9の連続体が切断されて不連続となった領域に貼合される。吸収性本体13は,例えばホットメルト接着剤などを用いて接合すればよい。   Then, the absorptive main body 13 is bonded on the continuous body of the inner sheet 12 (on the side facing the skin) (step S5). The absorbent main body 13 is a member disposed around the front body 1 and the back body 2 around the crotch 3 of the disposable diaper, and has a function of absorbing and holding liquid such as urine. Although illustration of the process which forms the absorptive main body 13 is abbreviate | omitted, what is necessary is just to form by a well-known process. The absorbent main body 13 includes, for example, a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between the top sheet and the back sheet. For this reason, liquids such as urine permeate through the top sheet and are absorbed and held by the absorber, and leakage to the outside is prevented by the back sheet. As the liquid permeable material constituting the top sheet, for example, a woven fabric, a non-woven fabric, or a porous film can be employed. In particular, as the liquid-permeable material, it is preferable to use a non-woven fabric made of a thermoplastic resin such as polypropylene, polyethylene, polyester, or nylon and subjected to a hydrophilic treatment. Moreover, as a liquid-impermeable material which comprises a back sheet, the liquid-impermeable film etc. which consist of resin, such as polyethylene, can be employ | adopted, for example. In particular, it is preferable to use a microporous polyethylene film as the liquid-impermeable material. The absorbent body is constituted by covering an absorbent material for absorbing and holding a wearer's urine and body fluid from the skin contact surface side and the skin non-contact surface side with a core wrap sheet such as tissue. ing. As an absorptive material, what mixed the fluff pulp and the super absorbent polymer (SuperAbsorbentPolymer; "SAP"), for example, can be employ | adopted. An example of fluff pulp is a cotton pulp or non-wood pulp defibrated. An example of a superabsorbent polymer is sodium polyacrylate. The core wrap sheet is made of a hydrophilic sheet. As the hydrophilic sheet, for example, tissue, absorbent paper, or a nonwoven fabric subjected to hydrophilic treatment can be used. The absorptive main body 13 including these top sheet, back sheet, and absorbent body is bonded to a region where the continuous body of the leg elastic member 6 and the continuous body of the Tammy elastic member 9 are cut and become discontinuous. The absorbent main body 13 may be bonded using, for example, a hot melt adhesive.

その後,吸収性本体13が配置された間の領域において,アウターシート11の連続体とインナーシート12の連続体をくり抜き切断することにより,レッグ開口部4を形成する(ステップS6)。すなわち,前身頃側のレッグ伸縮部材6の連続体と,後身頃側のレッグ伸縮部材6は,一定周期で離れるように蛇行しており,この離れた箇所において,レッグ開口部4を形成するための切断が行われる。これにより,使い捨ておむつ10の股下部3の左右両側に,湾曲した曲線状の側縁が形成され,左右一対のレッグ開口部4が画定される。   Thereafter, the leg opening 4 is formed by cutting out and cutting the continuous body of the outer sheet 11 and the continuous body of the inner sheet 12 in the region between the absorbent main bodies 13 (step S6). That is, the continuum of the leg expansion member 6 on the front body side and the leg expansion member 6 on the back body side meander so as to leave at a constant cycle, and the leg opening 4 is formed at the separated portion. Cutting is performed. As a result, curved curved side edges are formed on the left and right sides of the crotch 3 of the disposable diaper 10, and a pair of left and right leg openings 4 are defined.

その後,アウターシート11の連続体の前身頃1側の端部と後身頃2側の端部とを,肌対向面側に向かって折り返す工程を行う(ステップS7)。例えば,アウターシート11の連続体の両端側には,アウターシート11の連続体の両端部分を,内方に向かって折り返すための一対のセーラーが位置している。一対のセーラーは,アウターシート11の両端部分を挟み込みながら,シート両端部分を内方に案内して折り込む。これにより,アウターシート11の連続体の折り返し部分に,複数のウエスト伸縮部材8の連続体が挟み込まれて固定される。   Thereafter, a step of folding back the end part on the front body 1 side and the end part on the back body 2 side of the continuous body of the outer sheet 11 toward the skin facing surface side is performed (step S7). For example, a pair of sailors for folding both ends of the continuous body of the outer sheet 11 inward are located on both ends of the continuous body of the outer sheet 11. The pair of sailors are folded while guiding both end portions of the outer sheet 11 inward while sandwiching both end portions of the outer sheet 11. Thereby, the continuous body of the several waist elastic member 8 is inserted | pinched and fixed to the folding | turning part of the continuous body of the outer sheet | seat 11. As shown in FIG.

その後,以上の工程により形成されたおむつ前駆体を,股下部3において二つ折りにし,前身頃1と後身頃を重ね合わせる(ステップS8)すなわち,この二つ折りにする工程により,レッグ開口部4が形成されたおむつ前駆体が,股下部3において,使い捨ておむつの長さ方向に二つ折りにされ,前身頃1と後身頃2とが重ね合わされ,おむつ前駆体が幅方向に複数個連続したおむつ連続体10´が形成される。おむつ連続体10´は,引き続き,使い捨ておむつ10の幅方向と一致する方向を搬送方向として,搬送される。   Thereafter, the diaper precursor formed by the above process is folded in two at the crotch part 3 and the front body 1 and the back body are overlapped (step S8). That is, the leg opening 4 is formed by this half-folding process. The formed diaper precursor is folded in half in the length direction of the disposable diaper in the crotch part 3, the front body 1 and the back body 2 are overlapped, and a plurality of diaper precursors are continuous in the width direction. A body 10 'is formed. The diaper continuous body 10 ′ is continuously conveyed with the direction coinciding with the width direction of the disposable diaper 10 as the conveyance direction.

その後,おむつ連続体10´の後身頃2の外表面に,後処理テープ5を取付ける工程を行う(ステップS9)。すなわち,本実施形態において,後処理テープ5は,後身頃2を構成するアウターシート11の連続体の肌非対向面に取り付けられる。後処理テープ5としては,公知の構成を有するものを適宜採用できる。例えば,後処理テープ5は,一連に繋がった粘着テープをZ字状に折り畳んで,おむつ連続体10´に接合される下片と,下片上に剥離可能に接着される中片と,中片上に剥離可能に接着される上片とを構成したものを採用することとしてもよい。また,後処理テープ5としては,粘着テープの代わりに,機械的面状ファスナーのオス部材を採用してもよい。面状ファスナーのオス部材は,例えば,前身頃の外表面に設けられたメス部材や,前身頃の外表面を構成する不織布等と機械的に係合する。このように,後処理テープ5は,使い捨ておむつを廃棄する際に,おむつを丸めた状態で保持することができるものであれば,その素材や構造については特に限定されない。本発明は,この後処理テープ5を取付ける工程を特徴の一つとしている。後処理テープ5を取付ける工程の詳細ついては,後述する。   Then, the process of attaching the post-processing tape 5 to the outer surface of the back body 2 of the diaper continuous body 10 ′ is performed (step S9). That is, in this embodiment, the post-processing tape 5 is attached to the skin non-facing surface of the continuous body of the outer sheet 11 constituting the back body 2. As post-processing tape 5, what has a publicly known composition can be adopted suitably. For example, the post-treatment tape 5 is formed by folding a series of adhesive tapes in a Z-shape, a lower piece joined to the diaper continuous body 10 ′, a middle piece releasably adhered on the lower piece, and a middle piece It is good also as employ | adopting what comprised the upper piece adhere | attached so that peeling is possible. Moreover, as the post-processing tape 5, a male member of a mechanical surface fastener may be employed instead of the adhesive tape. The male member of the planar fastener is mechanically engaged with, for example, a female member provided on the outer surface of the front body, a non-woven fabric constituting the outer surface of the front body, or the like. As described above, the post-processing tape 5 is not particularly limited in its material and structure as long as it can hold the disposable diaper in a rolled state. The present invention is characterized by the step of attaching the post-processing tape 5. Details of the process of attaching the post-processing tape 5 will be described later.

その後,おむつ連続体10´の前身頃と後身頃の幅方向両側部に,搬送方向と直交する方向に沿って,サイドシール部2a(1a)を形成する(ステップS10)。このとき,サイドシール部2aは,搬送方向と直交する方向に沿って2列で形成される。サイドシール部2aは,例えば,公知の熱エンボス装置や超音波エンボス装置を用いて施せばよい。   Then, the side seal part 2a (1a) is formed along the direction orthogonal to a conveyance direction in the width direction both sides of the diaper continuous body 10 '(step S10). At this time, the side seal portions 2a are formed in two rows along a direction orthogonal to the transport direction. The side seal portion 2a may be applied using, for example, a known heat embossing device or ultrasonic embossing device.

その後,2列で形成されたサイドシール部2a(1a)の間において,おむつ連続体10´を,搬送方向と直交する方向に切断する(ステップS11)。これにより,幅方向に複数個連続していたおむつ連続体10´が切り離されて,個別の使い捨ておむつ10の製品となる。
以上の工程により,パンツ型の使い捨ておむつを製造することができる。
Thereafter, the diaper continuous body 10 'is cut in a direction orthogonal to the transport direction between the side seal portions 2a (1a) formed in two rows (step S11). As a result, a plurality of continuous diaper bodies 10 ′ that are continuous in the width direction are separated, and a product of individual disposable diapers 10 is obtained.
By the above process, a pants-type disposable diaper can be manufactured.

続いて,ステップS9で示した後処理テープを取付ける工程の詳細について説明する。   Next, details of the step of attaching the post-processing tape shown in step S9 will be described.

図2は,後処理テープを取り付ける工程を実行する取付装置20を,概念的に示したブロック図である。図2は,取付装置20を平面視した状態を示している。なお,図2では,装置の構成を分かりやすく示すために,テープ取付手段23と押え搬送手段24を透過的に描画している。
また,図3は,取付装置20を側面から見た状態を概念的に示したブロック図である。図3では,図の奥側に位置するテープ取付手段23の構成を破線で示している。
なお,図2及び図3では,おむつ連続体10´の搬送方向を矢印Aで示している。
FIG. 2 is a block diagram conceptually showing the attachment device 20 that executes the step of attaching the post-processing tape. FIG. 2 shows the mounting device 20 in a plan view. In FIG. 2, the tape attaching means 23 and the presser conveying means 24 are transparently drawn for easy understanding of the configuration of the apparatus.
FIG. 3 is a block diagram conceptually showing a state in which the attachment device 20 is viewed from the side. In FIG. 3, the structure of the tape attachment means 23 located in the back | inner side of a figure is shown with the broken line.
2 and 3, the conveyance direction of the diaper continuous body 10 ′ is indicated by an arrow A.

図2及び図3に示されるように,取付装置20は,搬送方向上流側に位置する第1の搬送手段21と,搬送方向下流側に位置する第2の搬送手段22を,備えている。第1の搬送手段21と,第2の搬送手段22は,搬送方向に所定間隔を置いて配置されている。第1の搬送手段21と第2の搬送手段22は,搬送方向に,おむつ連続体10´を搬送する機能を持つ。また,取付装置20は,第1の搬送手段21と,第2の搬送手段22の間に,テープ取付手段23を備える。テープ取付手段23は,第1の搬送手段21と第2の搬送手段22の間で,おむつ連続体10´に対し,後処理テープ5を取り付ける機能を持つ。さらに,取付装置20は,第1の搬送手段21と,第2の搬送手段22の間に,押え搬送手段24を備える。押え搬送手段24は,テープ取付手段23が後処理テープ5を取り付けているときに,おむつ連続体10´の股下部3を搬送面の両面側から押さえつつ,搬送法方向に搬送する機能を持つ。   As shown in FIGS. 2 and 3, the attachment device 20 includes a first transport unit 21 located on the upstream side in the transport direction and a second transport unit 22 located on the downstream side in the transport direction. The first transport unit 21 and the second transport unit 22 are arranged at a predetermined interval in the transport direction. The 1st conveyance means 21 and the 2nd conveyance means 22 have a function which conveys diaper continuous body 10 'in a conveyance direction. The attachment device 20 includes a tape attachment unit 23 between the first conveyance unit 21 and the second conveyance unit 22. The tape attaching means 23 has a function of attaching the post-processing tape 5 to the diaper continuous body 10 ′ between the first conveying means 21 and the second conveying means 22. Further, the attachment device 20 includes a presser conveying unit 24 between the first conveying unit 21 and the second conveying unit 22. The presser transport means 24 has a function of transporting the crotch part 3 of the diaper continuous body 10 ′ from both sides of the transport surface in the transport method direction when the tape attachment means 23 is mounting the post-processing tape 5. .

取付装置20が上記構成を備えるため,後処理テープを取り付ける工程(ステップS9)では,第1の搬送工程と,押え搬送工程と,テープ取付工程と,第2の搬送工程とが実行されるといえる。第1の搬送工程は,第1の搬送手段21によって,おむつ連続体10´を搬送する工程である。押え搬送工程は,第1の搬送工程により搬送されたおむつ連続体10´の股下部3を,押え搬送手段24によって両面側から押えながら搬送する工程である。テープ取付工程は,押え搬送工程中に,テープ取付手段23によって,おむつ連続体10´の後身頃(又は前身頃)の外表面に後処理テープ5を取り付け工程である。第2の搬送工程は,後処理テープ5が取付けられたおむつ連続体10´を搬送する工程である。   Since the attachment device 20 has the above-described configuration, in the step of attaching the post-processing tape (step S9), the first conveyance step, the presser conveyance step, the tape attachment step, and the second conveyance step are executed. I can say that. The first transport step is a step of transporting the diaper continuous body 10 ′ by the first transport means 21. The presser transporting process is a process of transporting the crotch portion 3 of the diaper continuous body 10 ′ transported in the first transporting process while being pressed from both sides by the presser transporting unit 24. The tape attaching process is an attaching process of the post-treatment tape 5 to the outer surface of the back body (or front body) of the diaper continuous body 10 ′ by the tape attaching means 23 during the presser transporting process. A 2nd conveyance process is a process of conveying diaper continuous body 10 'to which post-processing tape 5 was attached.

図3の側面図に示されるように,第1の搬送手段21と第2の搬送手段22は,前身頃1と後身頃2が重ね合わされたおむつ連続体10´の前身頃1側及び後身頃2側の両面から,おむつ連続体10´を挟み込んで押さえるようにして,搬送するものであることが好ましい。例えば,第1の搬送手段21と第2の搬送手段22のそれぞれは,おむつ連続体10´の搬送面を挟んで対向する位置に,上下一対のフィードコンベアを有していることが好ましい。すなわち,第1の搬送手段21は,おむつ連続体10´の後身頃2側(上側)に,第1の上方フィードコンベア21aを有し,おむつ連続体10´の前身頃1側(下側)に,第1の下方フィードコンベア21bを有している。同様に,第2の搬送手段22は,おむつ連続体10´の後身頃2側(上側)に,第2の上方フィードコンベア22aを有し,おむつ連続体10´の前身頃1側(下側)に,第2の下方フィードコンベア22bを有している。フィードコンベアは,公知の構成のものを採用すればよい。例えば,フィードコンベアは,モータ等の駆動機構と,駆動機構により回転される駆動ローラと,自由に回転可能な複数の従動ローラと,駆動ローラと複数の従動ローラに掛け渡された無端ベルトを,有する。また,フィードコンベアは,無端ベルトに張力を付与して弛みを除去するための張力付与機構を備えていてもよい。これにより,第1の搬送手段21と第2の搬送手段22を構成するフィードコンベアは,無端ベルトの表面を,おむつ連続体10´に当接させ,おむつ連続体10´の上下両面に対し一定の圧力を掛けて押えながら,搬送方向に搬送する。   As shown in the side view of FIG. 3, the first conveying means 21 and the second conveying means 22 are the front body 1 side and the back body of the diaper continuous body 10 'in which the front body 1 and the back body 2 are overlapped. It is preferable that the diaper continuous body 10 'is sandwiched and pressed from both sides of the two sides and conveyed. For example, each of the first conveying means 21 and the second conveying means 22 preferably has a pair of upper and lower feed conveyors at positions facing each other across the conveying surface of the diaper continuous body 10 '. That is, the 1st conveyance means 21 has the 1st upper feed conveyor 21a in the back body 2 side (upper side) of the diaper continuous body 10 ', and the front body 1 side (lower side) of the diaper continuous body 10'. In addition, a first lower feed conveyor 21b is provided. Similarly, the 2nd conveyance means 22 has the 2nd upper feed conveyor 22a in the back body 2 side (upper side) of diaper continuous body 10 ', and the front body 1 side (lower side of diaper continuous body 10') ) Has a second lower feed conveyor 22b. What is necessary is just to employ | adopt the thing of a well-known structure as a feed conveyor. For example, a feed conveyor includes a driving mechanism such as a motor, a driving roller that is rotated by the driving mechanism, a plurality of freely driven rollers, and an endless belt that is stretched between the driving roller and the plurality of driven rollers. Have. Moreover, the feed conveyor may be provided with a tension applying mechanism for applying tension to the endless belt to remove slack. Thereby, the feed conveyor which comprises the 1st conveyance means 21 and the 2nd conveyance means 22 makes the surface of an endless belt contact | abut to diaper continuous body 10 ', and is constant with respect to the upper and lower surfaces of diaper continuous body 10'. Transport in the transport direction while pressing with the pressure of.

また,図2の平面図に示されるように,第1の搬送手段21と第2の搬送手段22は,おむつ連続体10´の前身頃1と後身頃2が重なった部分と,股下部3とを,後身頃2側(上側)及び前身頃1側(下側)の両面に対し,一定の圧力を掛けて押えながら搬送するものであることが好ましい。図1に示したステップS2に示されるように,おむつ連続体10´には,各種弾性伸縮部材(レッグ伸縮部材6,ウエスト伸縮部材8,タミー伸縮部材9)が伸長状態で固定されている。そこで,各種伸縮部材6,8,9が収縮して,おむつ連続体10´の外観が崩れないように,第1の搬送手段21と第2の搬送手段22は,おむつ連続体10´の全体の上面と下面に一定の圧力を付与して,両側から押さえて搬送する。一定の圧力は,おむつ連続体10´に伸長状態で固定された各種伸縮部材(レッグ伸縮部材6,ウエスト伸縮部材8,タミー伸縮部材9)が収縮しない程度のものであればよい。これにより,第1の搬送手段21と第2の搬送手段22が間隔を置いて配置されていても,おむつ連続体10´うち,搬送方向に連続している前身頃1と後身頃2が重なり合った部分は,第1の搬送手段21と第2の搬送手段22によって張力が付与されて,弛まずに搬送されていく。   Further, as shown in the plan view of FIG. 2, the first transport means 21 and the second transport means 22 include a portion where the front body 1 and the back body 2 of the diaper continuous body 10 ′ overlap, and the crotch 3 Are preferably conveyed while being pressed with a certain pressure applied to both the rear body 2 side (upper side) and the front body 1 side (lower side). As shown in step S <b> 2 shown in FIG. 1, various elastic elastic members (leg elastic member 6, waist elastic member 8, Tammy elastic member 9) are fixed to the diaper continuous body 10 ′ in an extended state. Therefore, the first conveying means 21 and the second conveying means 22 are the whole of the diaper continuous body 10 ′ so that the external appearance of the diaper continuous body 10 ′ does not collapse due to contraction of the various elastic members 6, 8, 9. Apply a certain pressure to the upper and lower surfaces of the paper and hold it from both sides to carry it. The constant pressure may be such that the various elastic members (the leg elastic member 6, the waist elastic member 8, the tammy elastic member 9) fixed to the diaper continuous body 10 'in an expanded state do not contract. Thereby, even if the 1st conveyance means 21 and the 2nd conveyance means 22 are arrange | positioned at intervals, among the diaper continuous body 10 ', the front body 1 and the back body 2 which continue in the conveyance direction overlap. Tension is applied to the portion by the first conveying means 21 and the second conveying means 22, and the portion is conveyed without slack.

図2及び図3に示されるように,上記第1の搬送手段21と第2の搬送手段22の間の領域には,テープ取付手段23が配置されている。本実施形態において,テープ取付手段23は,おむつ連続体10´の後身頃2の外表面に対し,後処理テープ5を取り付けることができる。但し,テープ取付手段23は,おむつ連続体10´の前身頃1の外表面に対し,後処理テープ5を取り付けるものであってもよい。テープ取付手段23は,適宜公知の構成を採用できる。例えば,図3の側面図に示されるように,テープ取付手段23は,カーターロール23aと,アンビルロール23bと,スタンパーロール23cと,を備える。カッターロール23aは,その周面に,後処理テープ5の連続体5´を切断するためのブレードを持つ。また,アンビルロール23bは,その周面に,カッターロール23aのブレードとの間で後処理テープ5の連続体5´を切断する平坦面と,この平坦面上に,切断後の後処理テープ5を吸着して保持するための吸着領域と,を持つ。また,スタンパーロール23cは,おむつ連続体10´の搬送面を挟んで,アンビルロール23b対向する位置に配置されており,その周面に,アンビルロール23bとの間でおむつ連続体10´を押圧するための平坦面を持つ。すなわち,本実施形態では,図3の側面図に示されるように,カッターロール23aとアンビルロール23bが,おむつ連続体10´の後身頃2側に配置され,スタンパーロール23cが,おむつ連続体10´の前身頃1側に配置されている。   As shown in FIGS. 2 and 3, a tape attachment means 23 is disposed in the region between the first conveyance means 21 and the second conveyance means 22. In this embodiment, the tape attachment means 23 can attach the post-processing tape 5 to the outer surface of the back body 2 of the diaper continuous body 10 ′. However, the tape attaching means 23 may attach the post-treatment tape 5 to the outer surface of the front body 1 of the diaper continuous body 10 '. The tape attachment means 23 can adopt a known configuration as appropriate. For example, as shown in the side view of FIG. 3, the tape attachment means 23 includes a carter roll 23a, an anvil roll 23b, and a stamper roll 23c. The cutter roll 23a has a blade for cutting the continuous body 5 'of the post-processing tape 5 on its peripheral surface. The anvil roll 23b has a flat surface for cutting the continuous body 5 'of the post-processing tape 5 between the anvil roll 23b and the blade of the cutter roll 23a, and the post-processing tape 5 after cutting on the flat surface. And an adsorption region for adsorbing and holding the material. Further, the stamper roll 23c is arranged at a position facing the anvil roll 23b across the conveyance surface of the diaper continuous body 10 ', and the diaper continuous body 10' is pressed between the peripheral surface and the anvil roll 23b. To have a flat surface. That is, in this embodiment, as shown in the side view of FIG. 3, the cutter roll 23 a and the anvil roll 23 b are arranged on the back body 2 side of the diaper continuous body 10 ′, and the stamper roll 23 c is connected to the diaper continuous body 10. It is arranged on the front body 1 side of '.

上記した構成を持つテープ取付手段23には,まず,後処理テープ5の連続体5´が,カッターロール23aと,アンビルロール23bとの間に,送り込まれる。後処理テープ5の連続体5´は,カッターロール23aが持つブレードによって切断されて,おむつ連続体10´に取付けられる個別の後処理テープ5となる。アンビルロール23bは,その平坦面の特定の範囲が,吸着領域となっており,この吸着領域に,切断により生じた個別の後処理テープ5を受け取る。アンビルロール23bは,後処理テープ5を吸着領域に吸着させつつ,後処理テープ5を,おむつ連続体10´との接合点まで移動させる。おむつ連続体10´との接合点まで移動された後処理テープ5は,アンビルロール23bとスタンパーロール23cとの間で,おむつ連続体10´に対して強く押しつけられる。これにより,後処理テープ5に形成された粘着層が,おむつ連続体10´に対して剥離困難に接着される。   First, the continuous body 5 ′ of the post-processing tape 5 is fed between the cutter roll 23 a and the anvil roll 23 b to the tape attaching means 23 having the above-described configuration. The continuous body 5 ′ of the post-processing tape 5 is cut by a blade of the cutter roll 23 a and becomes an individual post-processing tape 5 attached to the diaper continuous body 10 ′. A specific range of the flat surface of the anvil roll 23b is a suction area, and the individual post-processing tape 5 generated by cutting is received in this suction area. The anvil roll 23b moves the post-processing tape 5 to the joining point with the diaper continuous body 10 ′ while adsorbing the post-processing tape 5 to the suction area. The post-processing tape 5 moved to the joining point with the diaper continuous body 10 'is strongly pressed against the diaper continuous body 10' between the anvil roll 23b and the stamper roll 23c. As a result, the adhesive layer formed on the post-processing tape 5 is adhered to the diaper continuous body 10 'with difficulty in peeling.

また,上記したテープ取付手段23による後処理テープ5を取り付ける工程は,第1の搬送手段21と第2の搬送手段22の間に位置する押え搬送手段24によって,おむつ連続体10´が搬送されている途中に行われる。図2の平面図に示されるように,押え搬送手段24は,第1の搬送手段21と第2の搬送手段22の間隔の,ほぼ全体に亘って配置されていることが好ましい。少なくとも,押え搬送手段24は,テープ取付手段23の位置よりも搬送方向上流側から,テープ取付手段23の位置よりも搬送方向下流側に延びて配置されたものであることが好ましい。例えば,押え搬送手段24は,第1の搬送手段21と第2の搬送手段22の間隔を100%とした場合に,60%〜100%,70%〜95%,又は80%〜90%の範囲に亘って,おむつ連続体10´を押えながら搬送するものであることが好ましい。   Further, in the step of attaching the post-processing tape 5 by the tape attaching means 23 described above, the diaper continuous body 10 ′ is conveyed by the presser conveying means 24 positioned between the first conveying means 21 and the second conveying means 22. It is done on the way. As shown in the plan view of FIG. 2, it is preferable that the presser conveying means 24 is disposed over substantially the entire distance between the first conveying means 21 and the second conveying means 22. At least the presser transporting means 24 is preferably arranged so as to extend from the upstream side of the transport direction with respect to the position of the tape mounting means 23 to the downstream side of the transport direction with respect to the position of the tape mounting means 23. For example, the presser conveying means 24 is 60% to 100%, 70% to 95%, or 80% to 90% when the interval between the first conveying means 21 and the second conveying means 22 is 100%. It is preferable to convey the diaper continuous body 10 'while pressing it over the range.

図3の側面図に示されるように,押え搬送手段24は,例えば,おむつ連続体10´の搬送面を挟んで互いに対向する位置に,一対のフィードコンベアを有していることが好ましい。すなわち,押え搬送手段24は,おむつ連続体10´の後身頃2側(上側)に,上方押えフィードコンベア24aを有し,おむつ連続体10´の前身頃1側(下側)に,下方押えフィードコンベア24bを有している。一対の押えフィードコンベア24a,24bは,例えば,モータ等の駆動機構と,駆動機構により回転される駆動ローラと,自由に回転可能な複数の従動ローラと,駆動ローラと複数の従動ローラに掛け渡された無端ベルトを,有するものを採用できる。また,一対の押えフィードコンベア24a,24bは,無端ベルトに張力を付与して弛みを除去するための張力付与機構を備えていてもよい。これにより,押え搬送手段24を構成する一対の押えフィードコンベア24a,24bは,無端ベルトの表面を,おむつ連続体10´に当接させ,おむつ連続体10´の上下両面に対し一定の圧力を掛けて押えながら,搬送方向に搬送できる。   As shown in the side view of FIG. 3, it is preferable that the presser transport means 24 has a pair of feed conveyors at positions facing each other across the transport surface of the diaper continuous body 10 ′, for example. That is, the presser conveying means 24 has an upper presser feed conveyor 24a on the rear body 2 side (upper side) of the diaper continuous body 10 ', and the lower presser foot on the front body 1 side (lower side) of the diaper continuous body 10'. It has a feed conveyor 24b. The pair of presser foot feed conveyors 24a and 24b are, for example, spanned between a drive mechanism such as a motor, a drive roller rotated by the drive mechanism, a plurality of freely driven rollers, and a drive roller and a plurality of driven rollers. It is possible to employ one having an endless belt. Further, the pair of presser feed conveyors 24a and 24b may be provided with a tension applying mechanism for applying tension to the endless belt to remove slack. Thus, the pair of presser feed conveyors 24a and 24b constituting the presser transport means 24 abuts the surface of the endless belt against the diaper continuous body 10 'and applies a constant pressure to the upper and lower surfaces of the diaper continuous body 10'. Can be transported in the transport direction while hanging and holding.

押え搬送手段24は,一対の押えフィードコンベア24a,24bによって,少なくとも,おむつ連続体10´の股下部3を挟み込みながら,搬送する。なお,おむつ連続体10´の股下部3とは,図2に示されるように,搬送方向(使い捨ておむつの幅方向)の左右両側に,一対のレッグ開口部4が形成された範囲である。換言すると,おむつ連続体10´のうち,一対のレッグ開口部4が形成されることにより,隣接するおむつ前駆体との間が離間した部分が股下部3となる。他方,おむつ連続体10´のうち,隣接するおむつ前駆体との間が連続的に繋がっている部分が,前身頃1及び後身頃2となる。   The presser conveying means 24 conveys at least the crotch part 3 of the diaper continuous body 10 ′ by the pair of presser feed conveyors 24 a and 24 b. In addition, as shown in FIG. 2, the crotch part 3 of the diaper continuous body 10 ′ is a range in which a pair of leg openings 4 are formed on both left and right sides in the transport direction (width direction of the disposable diaper). In other words, in the diaper continuous body 10 ′, the pair of leg openings 4 is formed, so that a portion separated from the adjacent diaper precursor becomes the crotch part 3. On the other hand, portions of the diaper continuum 10 ′ that are continuously connected to adjacent diaper precursors are the front body 1 and the back body 2.

上述したように,第1の搬送手段21と第2の搬送手段22が間隔を置いて配置されていても,おむつ連続体10´うち,搬送方向に連続している前身頃1と後身頃2が重なり合った部分は,第1の搬送手段21と第2の搬送手段22によって張力が付与されて,弛まずに搬送されていく。他方,一対のレッグ開口部4が形成されることにより,おむつ連続体10´の股下部3は,隣接するおむつ前駆体との間が離間してしまい,第1の搬送手段21と第2の搬送手段22の間の領域において,張力が付与されなくなっている。特に,おむつ連続体10´の股下部3には,レッグ伸縮部材6が伸長状態で固定されているため,張力が付与されなくなったときに,レッグ伸縮部材6が収縮して,おむつ連続体10´の股下部3が撓んでしまう。そこで,押え搬送手段24は,一対の押えフィードコンベア24a,24bによって,少なくとも,おむつ連続体10´の股下部3を挟み込んで一定の圧力を付与しながら搬送することで,伸長状態のレッグ伸縮部材6が収縮することを防止している。一定の圧力は,おむつ連続体10´に伸長状態で固定されたレッグ伸縮部材6が収縮しない程度のものであればよい。   As described above, even if the first transport means 21 and the second transport means 22 are arranged at an interval, the front body 1 and the back body 2 that are continuous in the transport direction in the diaper continuous body 10 '. The portions where the overlaps are applied with tension by the first transport means 21 and the second transport means 22 and are transported without slack. On the other hand, when the pair of leg openings 4 are formed, the crotch part 3 of the diaper continuous body 10 'is separated from the adjacent diaper precursor, and the first conveying means 21 and the second diaper precursor 2 are separated from each other. No tension is applied in the area between the conveying means 22. In particular, since the leg stretchable member 6 is fixed to the crotch part 3 of the diaper continuous body 10 ′ in an extended state, when the tension is no longer applied, the leg stretchable member 6 contracts and the diaper continuous body 10 The crotch part 3 of 'will bend. Therefore, the presser conveying means 24 is configured to convey at least a crotch part 3 of the diaper continuous body 10 ′ with a pair of presser feed conveyors 24 a and 24 b while applying a constant pressure, thereby extending the leg elastic member in an extended state. 6 is prevented from shrinking. The constant pressure may be such that the leg elastic member 6 fixed to the diaper continuous body 10 ′ in an expanded state does not contract.

また,押え搬送手段24は,股下部3だけでなく,レッグ伸縮部材6が固定された部位を含む領域において,おむつ連続体10´を,前身頃1側の面及び後身頃2側の面の両面から挟んで押さえた状態で,搬送方向に搬送することが好ましい。すなわち,図1の平面図に示されるように,レッグ伸縮部材6はレッグ開口部4の周囲に沿って配置されているものであるため,レッグ伸縮部材6は,股下部3だけでなく,前身頃1及び後身頃2の一部にも配置されている。そこで,押え搬送手段24の一対の押えフィードコンベア24a,24bは,前身頃1及び後身頃2の領域の内,レッグ伸縮部材6が配置された領域にも及んで,おむつ連続体10´を押さえることができるように配置される。これにより,レッグ伸縮部材6が収縮して,おむつ連続体10´に撓みが生じることをより確実に防止できる。   Further, the presser conveying means 24 is not limited to the crotch part 3 but also the diaper continuous body 10 ′ on the front body 1 side surface and the back body 2 side surface in the region including the portion where the leg elastic member 6 is fixed. It is preferable that the sheet is conveyed in the conveying direction while being pressed from both sides. That is, as shown in the plan view of FIG. 1, the leg elastic member 6 is disposed along the periphery of the leg opening 4, so that the leg elastic member 6 is not only the crotch 3 but also the front part. It is also arranged on part of the back 1 and the back 2. Accordingly, the pair of presser feed conveyors 24a and 24b of the presser conveying means 24 extends to the region where the leg elastic member 6 is disposed in the region of the front body 1 and the back body 2, and presses the diaper continuous body 10 '. Can be arranged. Thereby, it can prevent more reliably that the leg expansion-contraction member 6 shrink | contracts and a diaper continuous body 10 'produces bending.

ただし,図2の平面図に示されるように,押え搬送手段24は,テープ取付手段23が後処理テープ5を取り付ける領域は,押さえない。このようにすることで,テープ取付手段23が後処理テープ5を取り付ける工程を阻害することなく,押え搬送手段24により,おむつ連続体10´を搬送していくことができる。   However, as shown in the plan view of FIG. 2, the presser conveying means 24 does not press the area where the tape attaching means 23 attaches the post-processing tape 5. In this way, the diaper continuous body 10 ′ can be transported by the presser transporting means 24 without hindering the process of attaching the post-processing tape 5 by the tape attaching means 23.

以上,使い捨ておむつの製造方法及び製造装置について,本発明の特徴となる点を中心として説明を行った。上記した製造方法の工程や製造装置の構成の他,本発明は,公知の工程や構成を採用することが可能である。また,本願明細書では,本発明の内容を表現するために,図面を参照しながら本発明の好ましい実施形態を中心に説明を行った。ただし,本発明は,上記実施形態に限定されるものではなく,本願明細書に記載された事項に基づいて当業者が自明な変更形態や改良形態を包含するものである。   In the above, the manufacturing method and manufacturing apparatus of a disposable diaper were demonstrated centering on the point which becomes the characteristic of this invention. In addition to the steps of the manufacturing method and the configuration of the manufacturing apparatus described above, the present invention can employ known steps and configurations. Moreover, in this specification, in order to express the content of this invention, it demonstrated centering on preferable embodiment of this invention, referring drawings. However, the present invention is not limited to the above-described embodiments, but includes modifications and improvements obvious to those skilled in the art based on the matters described in the present specification.

本発明は,使い捨ておむつの製造方法及び製造装置に関するものである。このため,本発明は,使い捨ておむつの製造業において好適に利用し得る。   The present invention relates to a manufacturing method and a manufacturing apparatus for disposable diapers. For this reason, this invention can be utilized suitably in the manufacturing industry of a disposable diaper.

1…前身頃 2…後身頃 3…股下部 4…レッグ開口部 5…後処理テープ 6…レッグ伸縮部材 7…ウエスト開口部 8…ウエスト伸縮部材 9…タミー伸縮部材 10…使い捨ておむつ 10´…おむつ連続体 11…アウターシート 12…インナーシート 13…吸収性本体
20…取付装置 21…第1の搬送手段 22…第2の搬送手段 23…テープ取付手段 24…押え搬送手段
DESCRIPTION OF SYMBOLS 1 ... Front body 2 ... Rear body 3 ... Crotch part 4 ... Leg opening part 5 ... Post-processing tape 6 ... Leg elastic member 7 ... Waist opening part 8 ... Waist elastic member 9 ... Tammy elastic member 10 ... Disposable diaper 10 '... Diaper Continuous body 11 ... Outer sheet 12 ... Inner sheet 13 ... Absorptive main body 20 ... Mounting device 21 ... First conveying means 22 ... Second conveying means 23 ... Tape attaching means 24 ... Presser conveying means

Claims (4)

着用者の腹部に接する前身頃(1),着用者の背部に接する後身頃(2),及び前記前身頃(1)と前記後身頃(2)の間に位置する股下部(3)に長さ方向に区分され,
前記股下部(3)に,着用者の脚部が出されるレッグ開口部(4)が形成され,
前記前身頃(1)の外表面又は前記後身頃(2)の外表面に,後処理テープ(5)が取付けられた使い捨ておむつ(10)の製造方法であって,
前記後処理テープ(5)を取り付ける工程は,
前記レッグ開口部(4)が形成され前記後処理テープ(5)が取付けられる前のおむつ前駆体が,前記股下部(3)において前記長さ方向に二つ折りにされ,前記前身頃(1)と前記後身頃(2)とが重ね合わされ,前記長さ方向と直交する幅方向に複数個連続したおむつ連続体(10´)を,
前記幅方向に一致する方向を搬送方向として,第1の搬送手段(21)と,前記第1の搬送手段(21)と前記搬送方向に間隔を置いて配置された第2の搬送手段(22)と,によって搬送する搬送工程と,
前記搬送行程中に,前記第1の搬送手段(21)と前記第2の搬送手段(22)の間に設けられたテープ取付手段(23)によって,前記おむつ連続体(10´)の前記前身頃(1)の外表面又は前記後身頃(2)に対し,前記後処理テープ(5)を取り付けるテープ取付工程と,
前記テープ取付工程を行う時に,前記第1の搬送手段(21)と前記第2の搬送手段(22)の間に設けられた押え搬送手段(24)によって,前記搬送方向の左右両側に前記レッグ開口部(4)が形成された範囲である前記おむつ連続体(10´)の前記股下部(3)の全部を,前記前身頃(1)側の面及び前記後身頃(2)側の面の両面から挟んで押さえた状態で,前記搬送方向に搬送する押え搬送工程と,を含み,
前記おむつ前駆体は,前記レッグ開口部(4)を形成する左右の側縁に沿った部位に,一又は複数のレッグ伸縮部材(6)が伸長状態で固定されたものであり,
前記押え搬送工程において,前記押え搬送手段(24)は,前記おむつ連続体(10´)を,前記股下部(3)の全部及び前記レッグ伸縮部材(6)が固定された部位を含む領域において,前記前身頃(1)側の面及び前記後身頃(2)側の面の両面から挟んで押さえた状態で,前記搬送方向に搬送する
使い捨ておむつの製造方法。
Long on the front body (1) in contact with the abdomen of the wearer, the back body (2) in contact with the back of the wearer, and the crotch (3) located between the front body (1) and the back body (2) Is divided into
In the crotch part (3), a leg opening (4) is formed through which a wearer's leg comes out,
A method for producing a disposable diaper (10) in which a post-treatment tape (5) is attached to the outer surface of the front body (1) or the outer surface of the rear body (2),
The step of attaching the post-treatment tape (5)
The diaper precursor before the leg opening (4) is formed and the post-processing tape (5) is attached is folded in half in the length direction at the crotch part (3), and the front body (1) And the back body (2) are overlaid, and a plurality of continuous diaper bodies (10 ′) in the width direction orthogonal to the length direction are obtained,
A direction that coincides with the width direction is defined as a transport direction, and the first transport means (21) and the second transport means (22) arranged at an interval in the transport direction from the first transport means (21). )
During the transport process, the predecessor of the diaper continuum (10 ′) is provided by a tape mounting means (23) provided between the first transport means (21) and the second transport means (22). A tape attaching step for attaching the post-treatment tape (5) to the outer surface of the back (1) or the back body (2);
When the tape attaching step is performed, the leg is placed on both left and right sides in the transport direction by the press transport means (24) provided between the first transport means (21) and the second transport means (22). The entire crotch part (3) of the diaper continuum (10 '), which is the range in which the opening (4) is formed, is the surface on the front body (1) side and the surface on the back body (2) side. A presser transporting process for transporting in the transporting direction in a state of being sandwiched and pressed from both sides ,
The diaper precursor is one in which one or a plurality of leg stretchable members (6) are fixed in an extended state along the left and right side edges forming the leg opening (4).
In the presser transporting step, the presser transporting means (24) includes the diaper continuum (10 ') in a region including a part to which the entire crotch part (3) and the leg elastic member (6) are fixed. The manufacturing method of the disposable diaper which conveys in the said conveyance direction in the state pinched | interposed and pressed from both surfaces of the said front body (1) side surface and the said back body (2) side surface .
前記搬送工程において,
前記第1の搬送手段(21)と前記第2の搬送手段(22)は,
前記おむつ連続体(10´)の前記前身頃(1)と前記後身頃(2)が重なった部分と,前記股下部(3)を,前記前身頃(1)側の面及び前記後身頃(2)側の面の両面から挟んで押さえた状態で,前記搬送方向に搬送する
請求項1に記載の製造方法。
In the conveying step,
The first conveying means (21) and the second conveying means (22)
The front body (1) and the back body (2) of the diaper continuum (10 ') overlapped with each other, the crotch part (3), the front body (1) side surface and the back body ( The manufacturing method according to claim 1, wherein the sheet is conveyed in the conveying direction in a state of being sandwiched and pressed from both sides of the side surface.
前記押え搬送工程において,
前記押え搬送手段(24)は,
少なくとも前記テープ取付手段(23)が前記後処理テープ(5)を取り付ける領域は,押さえない
請求項1又は請求項2に記載の製造方法。
In the presser conveyance process,
The presser conveying means (24)
The manufacturing method according to claim 1 or 2 , wherein at least a region where the tape attaching means (23) attaches the post-processing tape (5) is not pressed.
着用者の腹部に接する前身頃(1)と,着用者の背部に接する後身頃(2)と,前記前身頃(1)及び前記後身頃(2)の間に位置する股下部(3)とに長さ方向に区分され,
前記股下部(3)に,着用者の脚部が出されるレッグ開口部(4)が形成され,
前記前身頃(1)の外表面又は前記後身頃(2)の外表面に,後処理テープ(5)が取付けられた使い捨ておむつ(10)の製造装置であって,
前記レッグ開口部(4)が形成され前記後処理テープ(5)が取付けられる前のおむつ前駆体が,前記股下部(3)において前記長さ方向に二つ折りにされ,前記前身頃(1)と前記後身頃(2)とが重ね合わされ,前記長さ方向と直交する幅方向に複数個連続したおむつ連続体(10´)を,前記幅方向に一致する方向を搬送方向として搬送する第1の搬送手段(21)と,
前記第1の搬送手段(21)と前記搬送方向に間隔を置いて配置され,前記おむつ連続体(10´)を前記搬送方向に搬送する第2の搬送手段(22)と,
前記第1の搬送手段(21)と前記第2の搬送手段(22)の間に設けられ,前記おむつ連続体(10´)の前記前身頃(1)の外表面又は前記後身頃(2)に対し,前記後処理テープ(5)を取り付けるテープ取付手段(23)と,
前記第1の搬送手段(21)と前記第2の搬送手段(22)の間に設けられ,前記搬送方向の左右両側に前記レッグ開口部(4)が形成された範囲である前記おむつ連続体(10´)の前記股下部(3)の全部を,前記前身頃(1)側の面及び前記後身頃(2)側の面の両面から挟んで押さえた状態で,前記搬送方向に搬送する押え搬送手段(24)と,を備え,
前記おむつ前駆体は,前記レッグ開口部(4)を形成する左右の側縁に沿った部位に,一又は複数のレッグ伸縮部材(6)が伸長状態で固定されたものであり,
前記押え搬送手段(24)は,前記おむつ連続体(10´)を,前記股下部(3)の全部及び前記レッグ伸縮部材(6)が固定された部位を含む領域において,前記前身頃(1)側の面及び前記後身頃(2)側の面の両面から挟んで押さえた状態で,前記搬送方向に搬送する
使い捨ておむつの製造装置。
A front body (1) in contact with the wearer's abdomen, a back body (2) in contact with the back of the wearer, and a crotch part (3) positioned between the front body (1) and the back body (2); Is divided in the length direction,
In the crotch part (3), a leg opening (4) is formed through which a wearer's leg comes out,
An apparatus for producing a disposable diaper (10) in which a post-treatment tape (5) is attached to an outer surface of the front body (1) or an outer surface of the rear body (2),
The diaper precursor before the leg opening (4) is formed and the post-processing tape (5) is attached is folded in half in the length direction at the crotch part (3), and the front body (1) And the back body (2) are overlapped, and a first diaper continuous body (10 ') continuous in a width direction orthogonal to the length direction is transported with a direction coincident with the width direction as a transport direction. Conveying means (21),
A second conveying means (22) disposed at an interval in the conveying direction with respect to the first conveying means (21) and conveying the diaper continuum (10 ') in the conveying direction;
The outer surface of the front body (1) or the back body (2) of the diaper continuum (10 ') provided between the first transport means (21) and the second transport means (22) On the other hand, a tape attaching means (23) for attaching the post-treatment tape (5),
The diaper continuum, which is provided between the first transport means (21) and the second transport means (22) and is a range in which the leg openings (4) are formed on both left and right sides in the transport direction. The entire crotch part (3) of (10 ') is conveyed in the conveying direction in a state of being sandwiched and pressed from both the front body (1) side surface and the rear body (2) side surface. A presser conveying means (24),
The diaper precursor is one in which one or a plurality of leg stretchable members (6) are fixed in an extended state along the left and right side edges forming the leg opening (4).
The presser conveying means (24) is configured such that the diaper continuum (10 ') includes the front body (1) in a region including all of the crotch part (3) and the leg elastic member (6). ) -Side surface and the back body (2) -side surface of the disposable diaper manufacturing apparatus that transports in the transport direction in a state of being sandwiched and pressed .
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