JP6600552B2 - パンツ型吸収性物品の製造方法 - Google Patents
パンツ型吸収性物品の製造方法 Download PDFInfo
- Publication number
- JP6600552B2 JP6600552B2 JP2015250660A JP2015250660A JP6600552B2 JP 6600552 B2 JP6600552 B2 JP 6600552B2 JP 2015250660 A JP2015250660 A JP 2015250660A JP 2015250660 A JP2015250660 A JP 2015250660A JP 6600552 B2 JP6600552 B2 JP 6600552B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- absorbent article
- type absorbent
- side seal
- continuous body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
- B29C66/81469—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed next to the other in a single line transverse to the feed direction, e.g. shoulder to shoulder sonotrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
- B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
- B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
- B29C66/1352—Single hem to hem joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/345—Progressively making the joint, e.g. starting from the middle
- B29C66/3452—Making complete joints by combining partial joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/346—Making joints having variable thicknesses in the joint area, e.g. by using jaws having an adapted configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/431—Joining the articles to themselves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
- B29C66/7294—Non woven mats, e.g. felt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
- B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
- B29C66/92451—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power using joining tools having different pressure zones or using several joining tools with different pressures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
- B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4871—Underwear
- B29L2031/4878—Diapers, napkins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
また、サイドシール部を形成する接合装置として、超音波ホーンにより被接合物に超音波振動を印加し熱融着させる超音波シール装置を用いることも知られている(特許文献1参照)。
このような超音波シール装置による融着は、ホーンとアンビル等との間のクリアランス(隙間)の大小がシール性に大きく影響する。その一方において、パンツ型使い捨ておむつ等においては、パンツ型吸収性物品に多様な機能を持たせるために、外装体の断面構造が複雑化し、それに伴いサイドシール部を形成する部位の層構造も複雑化する傾向にある。例えば、サイドシール部を形成する部位にシートの積層枚数が、相互に異なる2又は3以上の領域が存在する場合もあり、そのような場合、超音波ホーンを一つのみを備えた超音波シール装置を用いてサイドシール部を形成すると、例えば、積層枚数が多い部分を基準にクリアランスを設定した場合、積層枚数が大きい部分では十分なシール強度が得られる一方、積層枚数が少ない部分では十分なシール強度が得られない場合があり、積層枚数が少ない部分を基準にクリアランスを設定した場合、積層枚数が少ない部分では適切なシール強度が得られる一方、積層枚数が多い部分にはサイドシール部に孔が開く等の不都合が生じ易い。
図1には、本発明の一実施態様で製造されるパンツ型吸収性物品の一例であるパンツ型使い捨ておむつが示されている。
図1に示すパンツ型使い捨ておむつ1(以下、単に「おむつ1」ともいう)は、図1及び図2に示すように、吸収性本体2と、該吸収性本体2を固定している外装体3とを備え、腹側部Aにおける外装体3の両側部A1,A1と背側部Bにおける外装体3の両側部B1,B1とが接合されて形成された一対のサイドシール部4,4、ウエスト開口部8及び一対のレッグ開口部9,9が形成されている。外装体3は、非肌当接面側が、おむつ1の外面を形成している。
外層シート31、内層シート32及び端部固定シート33としては、使い捨ておむつ等の製造に従来使用されている各種公知のシート材を用いることができるが、肌触りや柔軟性の観点から不織布を用いることが好ましい。不織布としては、各種製法のものを用いることができ、例えば、エアースルー不織布、ヒートロール不織布、スパンレース不織布、スパンボンド不織布、メルトブローン不織布等が挙げられる。不織布を構成する繊維は、合成繊維、特に熱可塑性繊維であることが好ましいが、パルプ繊維等のセルロース系繊維を含んでいても良い。
次いで、帯状の外装体3を、図4に示すように、吸収性本体2と共に帯状の外装体3の幅方向に2つ折りすることにより、おむつ連続体1Aが得られる。
斯かる超音波シール装置11としては、市販の超音波ホーン、コンバーター、ブースター、超音波発振器を組み合わせて用いることができる。
より詳細に説明すると、本実施態様においては、サイドシール部の形成予定部位40に、超音波振動を印加してサイドシール部4を形成するサイドシール部形成装置10として、図6に示すように、おむつ連続体1Aの搬送方向に直交する方向CDに、複数の超音波シール装置11A〜11Dを並べたサイドシール装置を用いている。個々の超音波シール装置11A〜11Dは、それぞれ、コンバーター12、ブースター13、超音波ホーン14及びこれらを一体として、おむつ連続体1Aの厚み方向に沿う方向Tに進退させ、超音波ホーン14の先端面14tの位置を、該方向Tの特定の位置に固定可能な位置制御機構を備えている。位置制御機構は、図5に示すように、スライドシャフトやスライドレール等のスライドガイド15aに沿ってスライド移動可能な可動台15と、可動台15を進退させ、所定の位置に停止させることのできる駆動機構16と、駆動機構16による可動台15の駆動を制御する制御部(図示せず)を備えている。制御部(図示せず)は、複数の超音波シール装置11A〜11Dに対して一つ設けられている。制御部(図示せず)は、パーソナルコンピュータやプログラマブルロジックコントローラ(PLC)からなり、中央演算部、表示部、入力部、複数の超音波シール装置の駆動機構や各種センサと電気的に接続されたインタフェース部等を備えている。個々の駆動機構16は、制御部からの指令に基づき可動台15を前記方向Tに進退させる。個々の駆動機構16としては、エアシリンダ又は油圧シリンダ駆動式アクチュエーター等を用いることもできる。
本実施態様の製造方法によれば、このようにして、シール強度及び外観に優れたサイドシール部を有するおむつ1(パンツ型吸収性物品)を製造することができる。
例えば、前述した超音波シール装置11A〜11Dの全てを、図示しない駆動機構により、おむつ連続体1Aの搬送方向に直交する方向CDにスライド移動可能な可動台25上に設置するとともに、おむつ連続体1Aの搬送経路における図4に符号26に示す位置におむつ連続体1Aの側縁の位置の検知手段を設置し、検知手段により検出したおむつ連続体1Aの側縁の位置が、予め設定した適正位置から図4中の上側又は下側方向にずれているときには、前述した制御部が、該側縁の位置がずれた分だけ可動台25が同方向に移動するように駆動機構を駆動するようにすることも好ましい。
おむつ連続体1Aの側縁の検知手段としては、側縁の位置を検知可能な任意の手段を用いることができ、例えば、レーザー式センサ、光電式センサ、超音波式センサ等を用いることができる。
なお、おむつ連続体1Aの側縁の位置を検出する位置は、サイドシール部を形成する位置より下流であっても良い。フィードバック制御により、おむつ連続体1Aの厚みやシートの積層枚数が異なる複数の部分と、それぞれに対応して設けた超音波ホーンの位置とを一致させることによっても、サイドシール部の形成予定部位40の層構造に応じた超音波シール加工を確実に行うことができる。
厚みの検知手段としては、静電容量式センサ、レーザー式センサ、超音波式センサ等を用いることができる。
おむつ連続体1Aの幅方向の厚みを検出し、厚みが異なる複数の部分ごとに超音波ホーン14とアンビル20との間のクリアンランスを変えて、超音波振動を印加することで、相対的に厚みが大きい部分と相対的に厚みが小さい部分と両者に適切な超音波シールを行うことができ、サイドシール部に適切なシール強度が得られ、厚みの大きい部分に意図しない孔が形成されることも防止される。
例えば、前述した実施態様においては、おむつ連続体1Aが、サイドシール部の形成予定部位40に、シートの積層枚数が異なる複数の部位3A〜3Dを有していたが、シートの積層枚数は同じで厚みが異なる複数の部位を有していても良く、シール工程において、その厚みが異なる複数の部分に対応させて複数の超音波ホーンを配置し且つ該複数の超音波ホーンの、連続体の厚み方向に沿う方向の位置を異ならせた状態下に超音波振動を印加しても良い。
図7(a)に示すパンツ型吸収性物品の連続体又はパンツ型吸収性物品は、サイドシール部の形成予定部位及びサイドシール部に、腹側部A側の外装体と背側部B側の外装体とが重ね合わされた形成された、6層構造部分3Aと4層構造部分3Bとを有している。
図7(b)に示すパンツ型吸収性物品の連続体又はパンツ型吸収性物品は、サイドシール部の形成予定部位及びサイドシール部に、腹側部A側の外装体と背側部B側の外装体とが重ね合わされた形成された、8層構造部分3Aと6層構造部分3Cと4層構造部分3Bとを有している。
図7(c)に示すパンツ型吸収性物品の連続体又はパンツ型吸収性物品は、サイドシール部の形成予定部位及びサイドシール部に、腹側部A側の外装体と背側部B側の外装体とが重ね合わされた形成された、4層構造部分3Dと6層構造部分3Eと第2の4層構造部分3Bとを有している。
上述した一の実施形態における説明省略部分及び一の実施形態のみが有する要件は、それぞれ他の実施形態に適宜適用することができ、また、各実施形態における要件は、適宜、実施形態間で相互に置換可能である。
A 腹側部
B 背側部
C 股下部
1A おむつ連続体(パンツ型吸収性物品の連続体)
40 サイドシール部を形成する部位(サイドシール部の形成予定部位)
2 吸収性本体
3 外装体
31 外層シート
32 内層シート
33 端部固定シート
3A パンツ型吸収性物品又はサイドシール部の形成予定部位の8層構造部分
3B、3D パンツ型吸収性物品又はサイドシール部の形成予定部位の4層構造部分
3C パンツ型吸収性物品又はサイドシール部の形成予定部位の4層構造部分
4 サイドシール部
5 ウエスト部弾性部材
6 胴回り部弾性部材
7 レッグ部弾性部材
8 ウエスト開口部
9 レッグ開口部
10 サイドシール部形成装置
11,11A〜11D 超音波シール装置
12 コンバーター
13 ブースター
14 超音波ホーン
14t 超音波ホーンの先端面
15 可動台
16 駆動機構
20 アンビル
21 シールブロック
25 可動台
Claims (4)
- 吸収性本体と、該吸収性本体を固定している外装体とを備え、腹側部における外装体の両側部と背側部における外装体の両側部とが接合されて形成された一対のサイドシール部を有するパンツ型吸収性物品の製造方法であって、
前記パンツ型吸収性物品の連続体に対して超音波ホーンとアンビルとを備えた超音波シール装置により超音波振動を印加して前記サイドシール部を形成するシール工程を具備し、
前記パンツ型吸収性物品の連続体は、前記サイドシール部を形成する部位に、前記連続体の搬送方向に直交する方向における一端側から他端側に向かって厚み又はシートの積層枚数が異なる複数の領域を有しており、
前記シール工程においては、前記厚み又は前記シートの積層枚数が異なる前記複数の領域に対応させて複数の超音波ホーンを配置し且つ該複数の超音波ホーンの、前記連続体の厚み方向に沿う方向の位置を異ならせ、前記厚みが大きい又は前記シートの積層枚数が多い領域に対応する前記超音波ホーンと前記アンビルとのクリアランスよりも、前記厚みが小さい又は前記シートの積層枚数が少ない領域に対応する前記超音波ホーンと前記アンビルとのクリアランスを小さくした状態下に前記超音波振動を印加する、パンツ型吸収性物品の製造方法。 - 前記複数の超音波ホーンを、前記連続体の搬送方向における相異なる位置に配置する、請求項1に記載のパンツ型吸収性物品の製造方法。
- 前記連続体の搬送方向に直交する方向の位置を検知し、検知した位置に基づき前記超音波ホーンの同方向の位置を調整しながら超音波振動を印加する、請求項1又は2に記載のパンツ型吸収性物品の製造方法。
- 前記パンツ型吸収性物品の連続体の搬送方向に直交する方向における複数の領域の厚みを測定して該方向における厚み差を検知し、検知した厚み差に基づき、前記超音波ホーンの、該連続体の厚み方向に沿う方向の位置を調整しながら超音波振動を印加する、請求項1〜3の何れか1項に記載のパンツ型吸収性物品の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015250660A JP6600552B2 (ja) | 2015-12-22 | 2015-12-22 | パンツ型吸収性物品の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015250660A JP6600552B2 (ja) | 2015-12-22 | 2015-12-22 | パンツ型吸収性物品の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017113194A JP2017113194A (ja) | 2017-06-29 |
JP6600552B2 true JP6600552B2 (ja) | 2019-10-30 |
Family
ID=59231244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015250660A Active JP6600552B2 (ja) | 2015-12-22 | 2015-12-22 | パンツ型吸収性物品の製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6600552B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018108979A1 (de) * | 2018-04-16 | 2019-10-17 | Branson Ultraschall Niederlassung Der Emerson Technologies Gmbh & Co. Ohg | Vibrationsschweißvorrichtung, Verfahren zum Verbinden von mindestens zwei länglichen Bauteilen mittels Vibrationsschweißen sowie ein Herstellungsverfahren für die Vibrationsschweißvorrichtung |
CN108527879A (zh) * | 2018-06-22 | 2018-09-14 | 安徽珂力智能电气有限公司 | 婴儿拉拉裤多辊超声波焊接装置及焊接方法 |
CN108943734A (zh) * | 2018-06-22 | 2018-12-07 | 安徽珂力智能电气有限公司 | 成人失禁裤分段式热焊接设备及热焊接方法 |
CN108859134A (zh) * | 2018-06-22 | 2018-11-23 | 安徽珂力智能电气有限公司 | 婴儿拉拉裤分段式超声波焊接装置 |
JP7212432B2 (ja) * | 2018-10-04 | 2023-01-25 | ユニ・チャーム株式会社 | 伸縮性シートの製造方法 |
JP6708723B2 (ja) * | 2018-11-15 | 2020-06-10 | 花王株式会社 | パンツ型使い捨ておむつ |
CN110215348B (zh) * | 2019-05-20 | 2023-10-20 | 金湖三木机械制造实业有限公司 | 卫生裤的生产装置 |
JP7505965B2 (ja) | 2020-11-04 | 2024-06-25 | 花王株式会社 | 伸縮性複合シートの製造方法及び製造装置 |
JP7170760B2 (ja) * | 2021-01-22 | 2022-11-14 | 株式会社リブドゥコーポレーション | 超音波溶着装置およびサイドシール部形成方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3779226B2 (ja) * | 2001-03-28 | 2006-05-24 | ユニ・チャーム株式会社 | シール装置 |
JP4005617B2 (ja) * | 2001-03-28 | 2007-11-07 | ユニ・チャーム株式会社 | シール装置およびシール部を有する軟質物品の製造方法 |
WO2005105410A1 (ja) * | 2004-04-30 | 2005-11-10 | Zuiko Corporation | 溶着装置 |
JP5247364B2 (ja) * | 2008-11-11 | 2013-07-24 | ユニ・チャーム株式会社 | 吸収性物品の製造方法 |
US9149980B2 (en) * | 2012-08-02 | 2015-10-06 | Frito-Lay North America, Inc. | Ultrasonic sealing of packages |
JP6349502B2 (ja) * | 2013-04-10 | 2018-07-04 | 株式会社アドウェルズ | 接合装置 |
JP6149650B2 (ja) * | 2013-09-26 | 2017-06-21 | 王子ホールディングス株式会社 | 使い捨ておむつ及び使い捨ておむつの製造方法 |
JP6255246B2 (ja) * | 2014-01-10 | 2017-12-27 | ユニ・チャーム株式会社 | 吸収性物品に係るシート状部材の超音波溶着装置、及び超音波溶着方法 |
-
2015
- 2015-12-22 JP JP2015250660A patent/JP6600552B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2017113194A (ja) | 2017-06-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6600552B2 (ja) | パンツ型吸収性物品の製造方法 | |
JP5750431B2 (ja) | パンツ型使い捨ておむつ及びその製造方法 | |
JP6140582B2 (ja) | パンツ型吸収性物品 | |
JP5728214B2 (ja) | 超音波接合装置、それを用いたウエブの接合方法及びそれを用いたパンツ型着用物品の製造方法 | |
KR102268201B1 (ko) | 팬츠형 착용 물품 및 그 제조 방법 | |
JP6271170B2 (ja) | パンツ型着用物品及びその製造方法 | |
JP5731617B2 (ja) | シート融着体の製造方法及びシート接合装置 | |
WO2015064486A1 (ja) | パンツ型着用物品及びその製造方法 | |
JP5822278B2 (ja) | 使い捨ておむつ | |
JP6753667B2 (ja) | 超音波接合装置 | |
JP5986855B2 (ja) | シートの接合装置及び接合装置を用いた使い捨ておむつの製造方法 | |
JP5978654B2 (ja) | 使い捨ておむつ及び使い捨ておむつの製造方法 | |
JP6205244B2 (ja) | 使い捨ておむつ | |
JP6180026B2 (ja) | パンツ型吸収性物品 | |
JP6271171B2 (ja) | パンツ型着用物品及びその製造方法 | |
JP6184016B2 (ja) | 使い捨ておむつ | |
JP2015085088A (ja) | パンツ型着用物品及びその製造方法 | |
JP6108618B2 (ja) | パンツ型着用物品及びその製造方法 | |
JP6195302B2 (ja) | パンツ型吸収性物品 | |
JP6159596B2 (ja) | パンツ型着用物品 | |
JP6189109B2 (ja) | パンツ型着用物品 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20160223 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20180222 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20180906 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20190606 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190625 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190819 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20191001 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20191007 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 6600552 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |