WO2020138057A1 - Method for producing composite sheet, method for producing absorbent article, composite sheet, and absorbent article - Google Patents

Method for producing composite sheet, method for producing absorbent article, composite sheet, and absorbent article Download PDF

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WO2020138057A1
WO2020138057A1 PCT/JP2019/050561 JP2019050561W WO2020138057A1 WO 2020138057 A1 WO2020138057 A1 WO 2020138057A1 JP 2019050561 W JP2019050561 W JP 2019050561W WO 2020138057 A1 WO2020138057 A1 WO 2020138057A1
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sheet
composite sheet
composite
absorbent article
continuous
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PCT/JP2019/050561
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French (fr)
Japanese (ja)
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夕貴 橋野
翠 安田
康之 石川
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ユニ・チャーム株式会社
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Priority to CN201980086231.XA priority Critical patent/CN113260342A/en
Publication of WO2020138057A1 publication Critical patent/WO2020138057A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties

Abstract

Obtained is a composite sheet having high cushioning properties and improved degree of freedom in the arrangement of joints and an elastic member in the composite sheet. A method (S100) for producing the composite sheet comprises: a first sheet forming step (S11) for forming a first sheet continuous body (C71) by using a laminated continuous body (C76) in which sheets continuous in the transport direction are laminated; a second sheet conveying step (S21) for conveying a second sheet continuous body (C72); an adhesive application step (S31) for applying an adhesive for bonding an elastic member (73) provided between the first sheet continuous body and the second sheet continuous body to at least one of the first sheet continuous body, the second sheet continuous body, and the elastic member; and an elastic member arranging step (S41) for bonding the elastic member in a stretched state with the adhesive between the first sheet continuous body and the second sheet continuous body. In the first sheet forming step, a plurality of joints is formed in the laminated continuous body at intervals in a plan view.

Description

複合シートの製造方法、吸収性物品の製造方法、複合シートおよび吸収性物品Composite sheet manufacturing method, absorbent article manufacturing method, composite sheet and absorbent article
　本発明は、吸収性物品等に用いられる複合シート及び複合シートの製造方法、複合シートを有する吸収性物品及び吸収性物品の製造方法に関する。 The present invention relates to a composite sheet used for absorbent articles and the like, a method for manufacturing the composite sheet, an absorbent article having the composite sheet, and a method for manufacturing the absorbent article.
　特許文献１には、吸収性物品のウエストベルトを構成する複合シートが開示されている。特許文献１の複合シートは、内層シートと、内層シートと積層された外層シートと、内層シートと外層シートの間に配置された糸状の伸縮性部材と、内層シートと外層シートを接合した接合部と、を有している。伸縮性部材は、幅方向に延び、かつ前後方向に間隔を空けて複数配置されている。接合部は、幅方向及び前後方向に間隔を空けて複数配置されている。伸縮性部材が収縮することにより、隣り合う接合部間のシートが、それぞれ厚み方向に膨らむように変形して、隣接する接合部間にシートからなる襞が形成でされる。 Patent Document 1 discloses a composite sheet that constitutes a waist belt of an absorbent article. The composite sheet of Patent Document 1 includes an inner layer sheet, an outer layer sheet laminated with the inner layer sheet, a thread-like stretchable member arranged between the inner layer sheet and the outer layer sheet, and a joint portion in which the inner layer sheet and the outer layer sheet are joined. And have. A plurality of elastic members extend in the width direction and are arranged at intervals in the front-rear direction. A plurality of joints are arranged at intervals in the width direction and the front-rear direction. When the stretchable member contracts, the sheets between the adjacent joints are deformed so as to swell in the thickness direction, and folds made of the sheet are formed between the adjacent joints.
特開２０１５－１９２８６２号公報JP, 2005-192862, A
　特許文献１の複合シートの接合部は、熱溶着によって内層シートと外層シートを接合している。このように構成された複合シートを製造するためには、内層シートと外層シートの間に伸縮性部材を配置し、その後に熱溶着によって接合部を形成する。例えば、伸縮性部材に重なるように接合部を形成すると、熱溶着による接合部を形成する過程に起因して伸縮性部材の伸縮性が阻害されるおそれがある。そのため、伸縮性部材と重ならない領域に接合部を形成しなければならず、接合部及び伸縮性部材の配置が制限され、意図した位置に意図した形状で襞を形成できず、所望のクッション性を有する複合シートを得ることができなかった。そこで、複合シートにおける接合部と伸縮性部材の配置の自由度を向上させ、高いクッション性を有する複合シートを得ることを目的とする。 The joint portion of the composite sheet of Patent Document 1 joins the inner layer sheet and the outer layer sheet by heat welding. In order to manufacture the composite sheet having such a structure, the elastic member is arranged between the inner layer sheet and the outer layer sheet, and then the joint portion is formed by heat welding. For example, if the joint portion is formed so as to overlap the stretchable member, the stretchability of the stretchable member may be impaired due to the process of forming the joint portion by heat welding. Therefore, the joint portion must be formed in a region that does not overlap with the stretchable member, the arrangement of the joint portion and the stretchable member is limited, the folds cannot be formed in the intended shape at the intended position, and the desired cushioning property is obtained. Could not be obtained. Then, it aims at improving the flexibility of arrangement|positioning of the joint part and elastic member in a composite sheet, and obtaining the composite sheet which has a high cushioning property.
　一態様に係る複合シートの製造方法は、搬送方向に連続するシートが積層された積層連続体を用いて第１シート連続体を形成する第１シート形成工程と、搬送方向に連続する第２シート連続体を搬送する第２シート搬送工程と、前記第１シート連続体と前記第２シート連続体の間に設けられる伸縮性部材を接着するための接着剤を、前記第１シート連続体、前記第２シート連続体及び前記伸縮性部材の少なくともいずれかに付与する接着剤付与工程と、前記第１シート連続体と前記第２シート連続体の間に、前記接着剤を介して伸長状態の前記伸縮性部材を接着する伸縮性部材配置工程と、を有し、前記第１シート形成工程は、平面視にて間隔を空けて複数の接合部を前記積層連続体に形成する。 A method for manufacturing a composite sheet according to one aspect includes a first sheet forming step of forming a first continuous sheet body by using a laminated continuous body in which continuous sheets are stacked in a transport direction, and a second sheet continuous in a transport direction. A second sheet conveying step of conveying a continuous body, an adhesive for adhering a stretchable member provided between the first sheet continuous body and the second sheet continuous body, the first sheet continuous body, the An adhesive applying step of applying to at least one of the second sheet continuum and the stretchable member, and the stretched state between the first sheet continuum and the second sheet continuum via the adhesive. An elastic member arranging step of adhering an elastic member is included, and the first sheet forming step forms a plurality of joints on the continuous laminated body at intervals in a plan view.
　一態様に係る吸収性物品の製造方法は、前胴回り域、股下域及び後胴回り域を有する吸収性物品の製造方法であって、複合シートの製造方法によって得られる複合シートを用いて、前記前胴回り域及び前記後胴回り域の少なくともいずれか一方に配置されるウエストベルトを形成するベルト形成工程を有する。 A method for manufacturing an absorbent article according to one aspect is a method for manufacturing an absorbent article having a front waistline region, a crotch region, and a rear waistline region, using a composite sheet obtained by the method for manufacturing a composite sheet, A belt forming step of forming a waist belt arranged in at least one of the waistline region and the rear waistline region.
　一態様に係る複合シートは、２層以上のシートが積層された積層体を有する第１シートと、前記第１シートと重ねて配置された第２シートと、前記第１シートと前記第２シートの間に配置され、かつ第１方向に伸縮する伸縮性部材と、を有する複合シートであって、前記積層体を構成するシートを接合する接合部が前記第２シートに到達しないように前記第１シート内に設けられており、前記接合部は、平面視にて間隔を空けて複数設けられている。 The composite sheet according to one aspect includes a first sheet having a laminated body in which two or more sheets are laminated, a second sheet arranged so as to overlap the first sheet, the first sheet, and the second sheet. And a stretchable member that is stretched in a first direction and that is disposed between the first sheet and the second sheet so that a joining portion that joins the sheets forming the laminate does not reach the second sheet. It is provided in one sheet, and a plurality of the joint portions are provided at intervals in a plan view.
　一態様に係る吸収性物品は、前後方向及び前記前後方向に直交する幅方向と、前胴回り域と、後胴回り域と、前記前胴回り域と前記後胴回り域との間に配置された股下域と、前記股下域、前記前胴回り域及び前記後胴回り域に跨がって配置された吸収性本体と、前記前胴回り域及び前記後胴回り域の少なくともいずれか一方において前記吸収性本体の非肌面側に配置されたウエストベルトと、を有する吸収性物品であって、前記ウエストベルトは、複合シートを有する。 The absorbent article according to one aspect is a front and rear direction, a width direction orthogonal to the front and rear direction, a front waistline region, a rear waistline region, and a crotch region disposed between the front waistline region and the rear waistline region. And an absorptive body disposed across the crotch region, the front waistline region and the rear waistline region, and non-skin of the absorbent body in at least one of the front waistline region and the rear waistline region. An absorbent article having a waist belt arranged on the surface side, wherein the waist belt has a composite sheet.
実施形態に係る吸収性物品の正面図である。It is a front view of the absorptive article concerning an embodiment. 実施形態に係る吸収性物品の平面図である。It is a top view of the absorptive article concerning an embodiment. 図２に示す吸収性物品のＡ－Ａ線に沿った断面図である。FIG. 3 is a cross-sectional view taken along the line AA of the absorbent article shown in FIG. 2. 図２に示すＢ部分における複合シートの平面図である。It is a top view of the composite sheet in the B section shown in FIG. 図４に示す複合シートのＣ－Ｃ線に沿った断面図である。FIG. 5 is a cross-sectional view of the composite sheet shown in FIG. 4, taken along the line CC. 複合シートの変形態様を示す図である。It is a figure which shows the modification of a composite sheet. 複合シートの製造方法を説明するための図である。It is a figure for demonstrating the manufacturing method of a composite sheet. 変形例に係る複合シートの平面図である。It is a top view of the composite sheet which concerns on a modification.
　（１）実施形態の概要
　本明細書及び添付図面の記載により、少なくとも以下の事項が明らかとなる。
　一態様に係る複合シートの製造方法は、搬送方向に連続するシートが積層された積層連続体を用いて第１シート連続体を形成する第１シート形成工程と、前記搬送方向に連続する第２シート連続体を搬送する第２シート搬送工程と、前記第１シート連続体と前記第２シート連続体の間に設けられる伸縮性部材を接着するための接着剤を、前記第１シート連続体、前記第２シート連続体及び前記伸縮性部材の少なくともいずれかに付与する接着剤付与工程と、前記第１シート連続体と前記第２シート連続体の間に、前記接着剤を介して伸長状態の前記伸縮性部材を接着する伸縮性部材配置工程と、を有し、前記第１シート形成工程は、平面視にて間隔を空けて複数の接合部を前記積層連続体に形成する。伸縮性部材の収縮によって第１シート連続体と第２シート連続体が収縮する。この伸縮性部材の収縮により、第１シート連続体における接合部間の領域が厚み方向に膨らむように変形して、隣接する接合部間に第１シート連続体からなる襞を形成できる。加えて、第２シートには、伸縮性部材の収縮によって襞が形成される。よって、当該製造方法によって得られた複合シートは、その表面に襞が形成され、クッション性が高まる。よって、接合部と伸縮性部材によって高いクッション性を有する複合シートを得ることができる。また、接合部が形成された第１シート連続体と伸縮性部材を接着するため、接合部の形成工程に起因して伸縮性部材の伸縮性が阻害されることがない。よって、接合部及び伸縮性部材の配置の制限が少なくなり、接合部と伸縮性部材の配置の自由度を向上させることができる。意図した位置に意図した形状で襞を形成でき、所望のクッション性を有する複合シートを得ることができる。 (1) Outline of Embodiment At least the following matters will be made clear by the present specification and the description of the accompanying drawings.
A method for manufacturing a composite sheet according to one aspect includes a first sheet forming step of forming a first continuous sheet body by using a laminated continuous body in which continuous sheets are stacked in a transport direction, and a second continuous sheet in the transport direction. A second sheet conveying step of conveying a continuous sheet body, an adhesive for adhering a stretchable member provided between the first continuous sheet body and the second continuous sheet body, the first continuous sheet body, An adhesive applying step of applying to at least one of the second continuous sheet and the stretchable member, and a state of being stretched between the first continuous sheet and the second continuous sheet via the adhesive. An elastic member arranging step of adhering the elastic member is included, and in the first sheet forming step, a plurality of joint portions are formed in the continuous laminated body at intervals in a plan view. The contraction of the stretchable member causes the first and second sheet continuums to contract. Due to the contraction of the stretchable member, the region between the joints in the first sheet continuum is deformed so as to expand in the thickness direction, and the folds made of the first sheet continuum can be formed between the adjacent joints. In addition, a fold is formed on the second sheet due to the contraction of the elastic member. Therefore, the composite sheet obtained by the manufacturing method has folds formed on its surface, and the cushioning property is enhanced. Therefore, a composite sheet having a high cushioning property can be obtained by the joint portion and the elastic member. Further, since the stretchable member is adhered to the first sheet continuum having the joint portion formed therein, the stretchability of the stretchable member is not hindered due to the step of forming the joint portion. Therefore, there are less restrictions on the arrangement of the joint and the elastic member, and the degree of freedom of arrangement of the joint and the elastic member can be improved. A fold can be formed in an intended shape in an intended position, and a composite sheet having a desired cushioning property can be obtained.
　好ましい一態様によれば、前記第１シート形成工程は、前記搬送方向に間隔を空けて前記接合部を形成し、前記伸縮性部材配置工程は、前記搬送方向に伸長させた前記伸縮性部材を接着してよい。搬送方向に間隔を空けて接合部を設けることにより、接合部の有無による襞を搬送方向に交互に形成できる。加えて、伸縮性部材が搬送方向に収縮するため、第１シート連続体の襞がより細かく形成される。 According to a preferred aspect, in the first sheet forming step, the joint portions are formed at intervals in the transport direction, and in the elastic member arranging step, the elastic member stretched in the transport direction is formed. May be glued. By providing the joints at intervals in the transport direction, it is possible to alternately form folds depending on the presence or absence of the joints in the transport direction. In addition, since the stretchable member shrinks in the transport direction, the folds of the first sheet continuum are formed finer.
　好ましい一態様によれば、前記第１シート形成工程は、前記搬送方向と直交する直交方向に間隔を空けて配置された複数の伸縮性部材を跨がる領域に、前記直交方向に延びる接合部を形成してよい。直交方向に間隔を空けて配置された伸縮性部材を跨がって接合部を設けることにより、接合部による襞が直交方向に延びる。襞を複数の伸縮性部材の収縮によって形成でき、襞の精度を向上できるとともに襞の形状を維持し易くなる。 According to a preferred aspect, in the first sheet forming step, a joint portion extending in the orthogonal direction is provided in a region straddling a plurality of elastic members arranged at intervals in an orthogonal direction orthogonal to the transport direction. May be formed. By providing the joint portion across the elastic members arranged at intervals in the orthogonal direction, the folds formed by the joint portion extend in the orthogonal direction. The folds can be formed by contraction of a plurality of elastic members, the precision of the folds can be improved, and the shape of the folds can be easily maintained.
　好ましい一態様によれば、前記第１シート形成工程は、超音波溶着又はエンボス加工によって前記接合部を形成してよい。超音波溶着及びエンボス加工は、高速で積層連続体を搬送しつつ接合部を形成できる。また、接合部の配置の自由度が比較的高く、より意図した位置に意図した形状で襞を形成できる。 According to a preferable aspect, the joining portion may be formed by ultrasonic welding or embossing in the first sheet forming step. Ultrasonic welding and embossing can form a joint part while conveying a continuous laminated body at high speed. Moreover, the degree of freedom in arranging the joint portion is relatively high, and the fold can be formed in a more intended position and with an intended shape.
　他の形態によれば、前記第１シート形成工程は、コーター塗工によって接着剤を塗布し、前記接合部を形成してよい。コーター塗工によって接着剤が塗布された領域は、接着剤によって剛性が高くなる。第１シートの剛性が高くなることにより、第１シートのたくれが抑制され、意図した襞を形成し易くなる。 According to another aspect, in the first sheet forming step, an adhesive may be applied by coater coating to form the joint portion. The area to which the adhesive is applied by the coater coating has high rigidity due to the adhesive. By increasing the rigidity of the first sheet, the rolling of the first sheet is suppressed, and it becomes easy to form an intended fold.
　好ましい一態様によれば、前記接着剤付与工程は、前記伸縮性部材に前記接着剤を塗布してよい。第１シート連続体及び第２シート連続体に接着剤を塗布する形態と比較して、複合シートの外面に接着剤が滲み出し難く、複合シートの搬送経路に接着剤が付着することを抑制できる。また、当該製造方法によって得られた複合シートの表面に接着剤が滲み出しにくく、当該複合シートを有する吸収性物品の肌触りを向上できる。 According to a preferred aspect, the adhesive applying step may apply the adhesive to the elastic member. Compared with a mode in which an adhesive is applied to the first sheet continuum and the second sheet continuum, the adhesive is less likely to exude to the outer surface of the composite sheet, and the adhesion of the adhesive to the transport path of the composite sheet can be suppressed. .. Further, the adhesive hardly leaks to the surface of the composite sheet obtained by the production method, and the touch of the absorbent article having the composite sheet can be improved.
　好ましい一態様によれば、前記伸縮性部材配置工程は、厚み方向において前記伸縮性部材と重ならない領域で前記第１シート連続体と前記第２シート連続体を当接させてよい。本態様によれば、第１シート連続体及び第２シート連続体の間に伸縮性部材以外の部材が配置されていない領域が設けられる。伸縮性部材以外の部材が配置される形態と比較して、伸縮性部材による収縮力が第１シート連続体及び第２シート連続体に対して伝わり易い。よって、伸縮性部材の収縮によって襞を複合シートに形成し、高いクッション性を有する複合シートを得ることができる。 According to a preferred aspect, in the elastic member arranging step, the first sheet continuous body and the second sheet continuous body may be brought into contact with each other in a region that does not overlap the elastic member in the thickness direction. According to this aspect, a region where no member other than the stretchable member is arranged is provided between the first continuous sheet body and the second continuous sheet body. Compared to the configuration in which members other than the stretchable member are arranged, the contracting force of the stretchable member is easily transmitted to the first continuous sheet body and the second continuous sheet body. Therefore, the folds are formed on the composite sheet by contraction of the elastic member, and the composite sheet having high cushioning properties can be obtained.
　好ましい一態様によれば、前記搬送方向に連続するシートを、前記搬送方向に沿った折り線を基点に折り畳み、積層連続体を形成する積層体形成工程を有し、前記第１シート形成工程は、前記積層体形成工程の後に行われてよい。シートを折り畳んで積層連続体を形成することにより、別体のシートを積層して積層連続体を形成する構成と比較して、部品点数を低減でき、部品の管理工数を削減できる。また、シートが折り畳まれて形成された積層連続体は、直交方向の一端が折り目であり、当該一端においては、積層されたシートの直交方向の位置ズレが生じない。よって、別体のシートを積層して積層連続体を形成する構成と比較して、積層されたシートの直交方向の位置ずれを抑制できる。加えて、積層連続体を構成するシート間の空気が抜けにくく、シート間に隙間が形成され易く、積層連続体のクッション性が向上し、当該製造方法によって得られた複合シートのクッション性を更に向上できる。 According to a preferred aspect, the method includes a laminated body forming step of folding a continuous sheet in the conveying direction with a folding line along the conveying direction as a base point to form a laminated continuum, and the first sheet forming step includes It may be performed after the step of forming the laminate. By folding the sheets to form the laminated continuum, the number of parts can be reduced and the man-hours for managing the parts can be reduced, as compared with the configuration in which separate sheets are laminated to form the laminated continuum. In addition, the laminated continuous body formed by folding the sheets has a fold line at one end in the orthogonal direction, and at the one end, the positional deviation of the laminated sheets in the orthogonal direction does not occur. Therefore, as compared with a configuration in which separate sheets are laminated to form a continuous laminated body, it is possible to suppress positional deviation of the laminated sheets in the orthogonal direction. In addition, it is difficult for air to escape between the sheets forming the laminated continuum, a gap is easily formed between the sheets, the cushioning property of the laminated continuum is improved, and the cushioning property of the composite sheet obtained by the manufacturing method is further improved. Can be improved.
　好ましい一態様によれば、前記積層体形成工程は、前記折り畳まれたシート同士が離間可能に、前記積層連続体を形成してよい。積層連続体を構成するシート間に隙間が形成され易く、積層連続体のクッション性が向上し、当該製造方法によって得られた複合シートのクッション性を更に向上できる。 According to a preferred aspect, in the laminated body forming step, the laminated continuous body may be formed such that the folded sheets can be separated from each other. A gap is easily formed between the sheets constituting the laminated continuous body, the cushioning property of the laminated continuous body is improved, and the cushioning property of the composite sheet obtained by the manufacturing method can be further improved.
　他の形態によれば、前記積層体形成工程は、前記第１シート連続体と前記第２シート連続体の間に設けられる接着剤の坪量よりも低い坪量の接着剤を介して前記積層連続体を構成するシート同士を接合してよい。第１シート連続体と第２シート連続体の間に設けられる接着剤の坪量が高いため、第１シート連続体及び第２シート連続体に対する伸縮性部材の接合強度が高くなり、伸縮性部材の収縮が第１シート連続体及び第２シート連続体に伝わり易くなる。また、積層連続体の接着剤の坪量が低いため、積層連続体を構成するシートが柔軟に変形し易く、積層連続体に襞を形成し易い。よって、積層連続体のクッション性が向上し、当該製造方法によって得られた複合シートのクッション性を向上できる。また、接着剤の資材コストを低減でき、製造工程を簡素化できる。 According to another aspect, in the laminate forming step, the lamination is performed via an adhesive having a grammage lower than that of an adhesive provided between the first sheet continuum and the second sheet continuum. The sheets forming the continuous body may be joined together. Since the basis weight of the adhesive provided between the first continuous sheet body and the second continuous sheet body is high, the bonding strength of the elastic member to the first continuous sheet body and the second continuous sheet body is increased, and the elastic member is provided. Of the sheet is easily transmitted to the first sheet continuum and the second sheet continuum. In addition, since the basis weight of the adhesive of the continuous laminated body is low, the sheet forming the continuous continuous body is easily deformed flexibly, and folds are easily formed in the continuous continuous body. Therefore, the cushioning property of the laminated continuous body is improved, and the cushioning property of the composite sheet obtained by the manufacturing method can be improved. Further, the material cost of the adhesive can be reduced, and the manufacturing process can be simplified.
　好ましい一態様によれば、前記伸縮性部材配置工程は、糸状又は帯状の前記伸縮性部材を、前記搬送方向と直交する直交方向に間隔を空けて配置してよい。接合部の形成工程に起因して伸縮性部材の伸縮性が阻害されることがなく、伸縮性部材７３の配置の自由度を高めることができる。伸縮性部材の配置の自由度を向上させることにより、意図した位置に意図した形状で襞を形成でき、所望のクッション性を有する複合シートを得ることができる。 According to a preferred aspect, in the elastic member arranging step, the thread-shaped or band-shaped elastic members may be arranged at intervals in a direction orthogonal to the transport direction. The stretchability of the stretchable member is not hindered due to the step of forming the joint portion, and the degree of freedom in disposing the stretchable member 73 can be increased. By increasing the degree of freedom of arrangement of the elastic member, it is possible to form a fold in an intended shape at an intended position and obtain a composite sheet having a desired cushioning property.
　一態様に係る吸収性物品の製造方法は、前胴回り域、股下域及び後胴回り域を有する吸収性物品の製造方法であって、上述に記載の複合シートの製造方法によって得られる複合シートを用いて、前記前胴回り域及び前記後胴回り域の少なくともいずれか一方に配置されるウエストベルトを形成するベルト形成工程を有する。高いクッション性を有する複合シートを有するウエストベルトを備えることにより、腰周りに対する肌触りを向上できる。 A method for manufacturing an absorbent article according to one aspect is a method for manufacturing an absorbent article having a front waistline region, a crotch region, and a rear waistline region, using a composite sheet obtained by the method for manufacturing a composite sheet described above. And a belt forming step of forming a waist belt arranged in at least one of the front waistline region and the rear waistline region. By providing the waist belt having the composite sheet having high cushioning properties, the feel of the waist can be improved.
　好ましい一態様によれば、前記ベルト形成工程は、前記複合シートの前記第１シート連続体側を前記吸収性物品の肌面側に配置して、前記ウエストベルトを形成してよい。第１シート連続体側に襞をより形成し易いため、肌に触れる面側のクッション性を向上でき、着用者の肌触りを向上できる。 According to a preferred aspect, in the belt forming step, the waist belt may be formed by arranging the first sheet continuum side of the composite sheet on the skin surface side of the absorbent article. Since the folds are more easily formed on the side of the first sheet continuum, the cushioning property on the side in contact with the skin can be improved, and the feel of the wearer can be improved.
　好ましい一態様によれば、前記ベルト形成工程は、前記複合シートの前記第２シート連続体側を前記吸収性物品の肌面側に配置して、前記ウエストベルトを形成してよい。第１シート連続体側に襞をより形成し易いため、吸収性物品を外側から触れた際の肌触りを向上できる。 According to a preferred aspect, in the belt forming step, the waist belt may be formed by disposing the second sheet continuum side of the composite sheet on the skin surface side of the absorbent article. Since the folds are more easily formed on the side of the first sheet continuum, the touch of the absorbent article when touched from the outside can be improved.
　好ましい一態様によれば、吸収材料を有する吸収コアと、前記吸収コアの肌面側に配置される肌面側シートと、前記吸収コアの非肌面側に配置される非肌面側シートと、を積層して吸収性本体を形成する吸収性本体形成工程と、前記吸収性本体形成工程によって得られる前記吸収性本体と、前記ベルト形成工程によって得られるウエストベルトと、を接合するベルト接合工程と、を有してよい。本態様によれば、ウエストベルトと吸収性本体を別々に製造することにより、それぞれを意図した仕様で安定して製造できる。高いクッション性を有する複合シートを有するウエストベルトを備えることにより、肌触りの優れた吸収性物品を得ることができる。 According to a preferred aspect, an absorbent core having an absorbent material, a skin side sheet arranged on the skin side of the absorption core, and a non-skin side sheet arranged on the non-skin side of the absorption core. And a belt joining step of joining the absorbent main body obtained by the absorbent body forming step and the waist belt obtained by the belt forming step. And may have. According to this aspect, the waist belt and the absorbent main body are manufactured separately, so that the waist belt and the absorbent main body can be manufactured stably with intended specifications. By providing the waist belt having the composite sheet having high cushioning properties, it is possible to obtain an absorbent article having excellent touch.
　一態様に係る複合シートは、２層以上のシートが積層された積層体を有する第１シートと、前記第１シートと重ねて配置された第２シートと、前記第１シートと前記第２シートの間において前記第１シートと前記第２シートに接合され、かつ第１方向に伸縮する伸縮性部材と、を有する複合シートであって、前記積層体を構成するシートを接合する接合部が前記第２シートに到達しないように前記第１シート内に設けられており、前記接合部は、平面視にて間隔を空けて複数設けられている。複合シートは、伸縮性部材の収縮によって第１シートと第２シートが第１方向に収縮する。この伸縮性部材の収縮により、第１シートにおける接合部間の領域が厚み方向に膨らむように変形して、隣接する接合部間に第１シートからなる襞を形成できる。加えて、伸縮性部材の収縮によって第２シートも収縮し、第２シートに襞が形成される。よって、複合シートは、その表面に襞が形成され、クッション性が向上する。また、第１シートの接合部は、第２シートに形成されていないため、接合部の形成工程に起因して伸縮性部材の伸縮性が阻害されることがない。よって、接合部及び伸縮性部材の配置の制限が少なくなり、接合部と伸縮性部材の配置の自由度を向上させることができる。意図した位置に意図した形状で襞を形成でき、所望のクッション性を有する複合シートを得ることができる。また、第１シートの接合部は、第２シートに形成されていないため、第１シートに形成される襞と、第２シートに形成される襞と、が異なる位置及び態様で形成される。第１シートに形成される襞と第２シートに形成される襞が一体化した構成と比較して、よりクッション性が高まる。 The composite sheet according to one aspect includes a first sheet having a laminated body in which two or more sheets are laminated, a second sheet arranged so as to overlap the first sheet, the first sheet, and the second sheet. Between the first sheet and the second sheet, and a stretchable member that expands and contracts in the first direction between, and a joining portion that joins the sheets forming the laminate is It is provided in the first sheet so as not to reach the second sheet, and the plurality of joint portions are provided at intervals in a plan view. In the composite sheet, the contraction of the stretchable member causes the first sheet and the second sheet to contract in the first direction. Due to the contraction of the elastic member, the region between the joints of the first sheet is deformed so as to expand in the thickness direction, and the folds of the first sheet can be formed between the adjacent joints. In addition, the contraction of the stretchable member also contracts the second sheet, and folds are formed on the second sheet. Therefore, the composite sheet has folds formed on its surface, and the cushioning property is improved. Further, since the joint portion of the first sheet is not formed on the second sheet, the stretchability of the stretchable member is not hindered due to the step of forming the joint portion. Therefore, there are less restrictions on the arrangement of the joint and the elastic member, and the degree of freedom of arrangement of the joint and the elastic member can be improved. A fold can be formed in an intended shape in an intended position, and a composite sheet having a desired cushioning property can be obtained. Further, since the joining portion of the first sheet is not formed on the second sheet, the folds formed on the first sheet and the folds formed on the second sheet are formed at different positions and modes. The cushioning property is further enhanced as compared with the configuration in which the folds formed on the first sheet and the folds formed on the second sheet are integrated.
　好ましい一態様によれば、前記伸縮性部材は、前記第１方向と直交する第２方向に間隔を空けて複数設けられており、前記接合部は、前記複数の伸縮性部材を跨がって配置されてよい。複数の伸縮性部材を跨がって接合部を設けることにより、襞を複数の伸縮性部材の収縮によって形成でき、襞の精度を向上できるとともに襞の形状を維持し易くなる。 According to a preferred aspect, the plurality of elastic members are provided at intervals in the second direction orthogonal to the first direction, and the joint portion extends across the plurality of elastic members. It may be arranged. By providing the joint portion across the plurality of elastic members, the folds can be formed by contraction of the plurality of elastic members, the accuracy of the folds can be improved, and the shape of the folds can be easily maintained.
　好ましい一態様によれば、前記第１シートと前記第２シートが当接する当接領域を有してよい。第１シート及び第２シートの間に伸縮性部材以外の部材が配置されていない領域が設けられる。伸縮性部材以外の部材が配置される形態と比較して、伸縮性部材による収縮力が第１シート及び第２シートに対して伝わり易い。よって、伸縮性部材の収縮によって襞を複合シートに形成し、高いクッション性を有する複合シートを得ることができる。 According to a preferred aspect, the first sheet and the second sheet may have an abutting area where they abut. An area where no member other than the elastic member is arranged is provided between the first sheet and the second sheet. Compared to the configuration in which members other than the elastic member are arranged, the contracting force of the elastic member is easily transmitted to the first sheet and the second sheet. Therefore, the folds are formed on the composite sheet by contraction of the elastic member, and the composite sheet having high cushioning properties can be obtained.
　好ましい一態様によれば、前記積層体の端縁には、前記積層体を構成するシートを折り畳んだ折り目が設けられてよい。折り畳まれたシートによって積層体を構成することにより、別体のシートが積層された積層体と比較して、部品点数を低減できる。また、積層体の折り目が設けられた端縁では、積層されたシートの位置ズレが生じない。積層体を構成するシートの位置ズレが抑制され、吸収性物品の精度を向上できる。加えて、積層体を構成するシート間の空気が抜け難い。シート間に隙間が形成され易く、積層体のクッション性が向上し、複合シートのクッション性を更に向上できる。 According to a preferred aspect, the edge of the laminated body may be provided with a fold line formed by folding a sheet forming the laminated body. By configuring the laminated body by the folded sheets, the number of parts can be reduced as compared with the laminated body in which separate sheets are laminated. Further, at the edge of the laminated body where the fold line is provided, the positional deviation of the laminated sheets does not occur. The positional deviation of the sheets forming the laminate is suppressed, and the accuracy of the absorbent article can be improved. In addition, it is difficult for air to escape between the sheets forming the laminate. A gap is easily formed between the sheets, the cushioning property of the laminate is improved, and the cushioning property of the composite sheet can be further improved.
　好ましい一態様によれば、前記積層体を構成するシート同士は、接着剤を介して接合されており、前記伸縮性部材は、前記第１シートと前記第２シートの間に接着剤を介して接合されており、前記積層体を接合する前記接着剤の坪量は、前記第１シートと前記第２シートを接合する接着剤の坪量よりも低くてよい。第１シートと第２シートの間に設けられる接着剤の坪量が高いため、第１シート及び第２シートに対する伸縮性部材の接合強度が高くなり、伸縮性部材の収縮が第１シート及び第２シートに伝わり易くなる。また、積層体の接着剤の坪量が低いため、積層体を構成するシートが柔軟に変形し易く、積層体に襞を形成し易い。よって、積層体のクッション性が向上し、当該製造方法によって得られた複合シートのクッション性を向上できる。 According to a preferred aspect, the sheets forming the laminate are joined together via an adhesive, and the stretchable member is interposed between the first sheet and the second sheet via an adhesive. The basis weight of the adhesive that is joined and that joins the laminate may be lower than the basis weight of the adhesive that joins the first sheet and the second sheet. Since the basis weight of the adhesive provided between the first sheet and the second sheet is high, the bonding strength of the elastic member with respect to the first sheet and the second sheet is high, and the contraction of the elastic member causes the contraction of the first sheet and the second sheet. 2 sheets can be easily transmitted. Further, since the basis weight of the adhesive of the laminate is low, the sheets forming the laminate are easily deformed flexibly, and folds are easily formed on the laminate. Therefore, the cushioning property of the laminate is improved, and the cushioning property of the composite sheet obtained by the manufacturing method can be improved.
　好ましい一態様によれば、前記伸縮性部材は、前記第１方向と直交する第２方向に間隔を空けて複数設けられており、前記接合部は、前記第２方向に間隔を空けて複数設けられており、前記第２方向における前記接合部のピッチは、前記第２方向における前記伸縮性部材のピッチよりも短くてよい。接合部が第２方向に間隔を空けて複数配置されているため、第２方向に延びる襞を形成できる。また、接合部のピッチが短いため、より細かい襞を意図した態様で形成できる。 According to a preferred aspect, the plurality of elastic members are provided at intervals in a second direction orthogonal to the first direction, and the plurality of joints are provided at intervals in the second direction. The pitch of the joint portions in the second direction may be shorter than the pitch of the elastic members in the second direction. Since the plurality of joint portions are arranged at intervals in the second direction, the folds extending in the second direction can be formed. In addition, since the pitch of the joint portion is short, it is possible to form in a mode in which a finer fold is intended.
　一態様に係る吸収性物品は、前後方向及び前記前後方向に直交する幅方向と、前胴回り域と、後胴回り域と、前記前胴回り域と前記後胴回り域との間に配置された股下域と、前記股下域、前記前胴回り域及び前記後胴回り域に跨がって配置された吸収性本体と、前記前胴回り域及び前記後胴回り域の少なくともいずれか一方において前記吸収性本体と厚み方向に重なるウエストベルトと、を有する吸収性物品であって、前記ウエストベルトは、上述に記載の複合シートを有してよい。高いクッション性を有する複合シートを有するウエストベルトを備えることにより、腰周りに対する肌触りを向上できる。 The absorbent article according to one aspect is a front and rear direction, a width direction orthogonal to the front and rear direction, a front waistline region, a rear waistline region, and a crotch region disposed between the front waistline region and the rear waistline region. And an absorptive body disposed across the crotch region, the front waistline region and the rear waistline region, and the absorbent body in the thickness direction in at least one of the front waistline region and the rear waistline region. And a waist belt that overlaps with the above, the waist belt may include the composite sheet described above. By providing the waist belt having the composite sheet having high cushioning properties, the feel of the waist can be improved.
　好ましい一態様によれば、前記複合シートの前記第１シートは、前記第２シートよりも肌面側に位置してよい。第１シートに襞をより形成し易いため、肌に触れる面側のクッション性を向上でき、着用者の肌触りを向上できる。 According to a preferred aspect, the first sheet of the composite sheet may be located closer to the skin surface than the second sheet. Since the folds are more easily formed on the first sheet, the cushioning property of the side that comes into contact with the skin can be improved, and the wearer's feel can be improved.
　好ましい一態様によれば、前記第１シート及び前記第２シートは、繊維を有する不織布又は織布によって構成されており、前記第１シートの繊維の坪量は、前記第２シートの繊維の坪量よりも高くてよい。第１シートの坪量が高いため、第１シートに形成された襞が潰れ難く、当該皺を維持し易い。よって、第１シートのクッション性がより向上し、肌触りを向上できる。 According to a preferred aspect, the first sheet and the second sheet are made of a non-woven fabric or a woven fabric having fibers, and the basis weight of the fibers of the first sheet is the basis weight of the fibers of the second sheet. It may be higher than the quantity. Since the grammage of the first sheet is high, the folds formed on the first sheet are less likely to be crushed and the wrinkles are easily maintained. Therefore, the cushioning property of the first sheet is further improved, and the touch can be improved.
　好ましい一態様によれば、前記第１シートの前後方向の外端縁には、前記積層体を構成するシートが折り畳まれた第１折り目が前記幅方向に沿って設けられており、前記第１折り目は、前記吸収性本体の前記前後方向の外端縁よりも前記前後方向の外側に配置されてよい。第１シートにおける第１折り目の近傍の領域は、第１折り目を介して降り畳まれたシート間に隙間が形成され易く、第１シートの厚みが厚くなり易い。吸収性本体の外端縁よりも前後方向の外側の領域は、吸収性本体が配置された領域よりも厚みに対して厚み差が生じやすいが、当該厚み差を第１シートの第１折り目の近傍の領域の厚みによって埋めることができる。よって、ウエストベルトにおける厚み差が少なくなり、肌触りを向上できる。 According to a preferred aspect, a first fold line in which the sheets forming the laminated body are folded is provided on the outer edge of the first sheet in the front-rear direction along the width direction. The fold line may be arranged outside the front-rear direction outer edge of the absorbent body in the front-rear direction. In the region near the first fold of the first sheet, a gap is likely to be formed between the sheets folded down via the first fold, and the thickness of the first sheet is likely to be large. A region outside the outer edge of the absorbent main body in the front-rear direction is more likely to have a thickness difference with respect to the thickness than the region in which the absorbent main body is arranged, but the thickness difference is caused by the first fold of the first sheet. It can be filled with the thickness of the neighboring region. Therefore, the difference in thickness of the waist belt is reduced, and the touch can be improved.
　好ましい一態様によれば、前記第２シートの前後方向の外端縁には、前記第２シートが折り畳まれた第２折り目が前記幅方向に沿って設けられており、前記第２折り目は、前記吸収性本体の前記前後方向の外側縁よりも前記前後方向の外側に配置されており、前記第２折り目を介して折り畳まれた第２シート間に、前記第１シートの前記第１折り目が配置されてよい。吸収性本体の外端縁よりも前後方向の外側の領域は、吸収性本体が配置された領域よりも厚みに対して厚み差が生じやすいが、当該厚み差を第２シートの第２折り目の近傍の領域の厚みによって更に埋めることができる。また、第２折り目を介して折り畳まれた第２シート間に、前記第１シートの前記第１折り目が配置されているため、第１折り目の近傍のシートの膨らみに重なるように第２折り目の近傍の膨らみを設けることができる。ウエストベルトにおける厚み差がより少なくなり、肌触りを向上できる。 According to a preferred aspect, a second fold in which the second sheet is folded is provided along the width direction at an outer edge of the second sheet in the front-rear direction, and the second fold is The first fold of the first sheet is arranged between the second sheets that are disposed outside the outer edge of the absorbent main body in the front-rear direction in the front-rear direction, and are folded via the second fold. It may be arranged. A region outside the outer edge of the absorbent main body in the front-rear direction is more likely to have a thickness difference with respect to the thickness than the region in which the absorbent main body is arranged, but the thickness difference is caused by the second fold of the second sheet. It can be further filled by the thickness of the nearby region. Further, since the first fold of the first sheet is arranged between the second sheets folded via the second fold, the second fold is overlapped with the bulge of the sheet near the first fold. A bulge in the vicinity can be provided. The difference in the thickness of the waist belt is reduced, and the touch can be improved.
　（２）吸収性物品の全体概略構成
　以下、図面を参照して、実施形態に係る吸収性物品について説明する。なお、以下の図面の記載において、同一又は類似の部分には、同一又は類似の符号を付している。ただし、図面は模式的なものであり、各寸法の比率等は現実のものとは異なることに留意すべきである。したがって、具体的な寸法等は、以下の説明を参酌して判断すべきである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれ得る。吸収性物品は、テープ型であってもよいし、パンツ型であってもよい。吸収性物品は、使い捨ておむつであってもよいし、ショーツ型の生理用ナプキンであってよい。実施形態の吸収性物品は、パンツ型の使い捨ておむつである。図１は、本実施形態に係る吸収性物品１０の模式正面図である。図２は、本実施形態に係る使い捨ておむつ１０の模式平面図である。図３は、図２に示すＡ－Ａ線に沿った断面図である。図２及び図３では、後述するサイド接合部６０を展開した状態において吸収性物品１０を皺が形成されない状態まで伸長させた伸長状態を示している。また、図３に示す断面図では、説明の便宜上、各部材を厚み方向Ｔにおいて離間して示しているが、実際の製品においては厚み方向Ｔに接している。 (2) Overall Schematic Configuration of Absorbent Article Hereinafter, an absorbent article according to an embodiment will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of respective dimensions and the like are different from actual ones. Therefore, specific dimensions should be determined in consideration of the following description. Further, the drawings may include portions having different dimensional relationships and ratios. The absorbent article may be a tape type or a pants type. The absorbent article may be a disposable diaper or a shorts-type sanitary napkin. The absorbent article of the embodiment is a pants-type disposable diaper. FIG. 1 is a schematic front view of an absorbent article 10 according to this embodiment. FIG. 2 is a schematic plan view of the disposable diaper 10 according to this embodiment. FIG. 3 is a sectional view taken along the line AA shown in FIG. FIGS. 2 and 3 show an expanded state in which the absorbent article 10 is expanded to a state in which wrinkles are not formed in a state in which the side joint portion 60 described later is expanded. Further, in the cross-sectional view shown in FIG. 3, the respective members are shown separated in the thickness direction T for convenience of description, but they are in contact with each other in the thickness direction T in an actual product.
　吸収性物品１０は、互いに直交する前後方向Ｌ及び幅方向Ｗを有する。前後方向Ｌは、身体前側と身体後側とに延びる方向によって規定される。言い換えると、前後方向Ｌは、展開された吸収性物品１０において前後に延びる方向である。また、吸収性物品１０は、前後方向Ｌと幅方向Ｗの両方の直交する厚み方向を有する。吸収性物品１０は、前胴回り域Ｓ１と、後胴回り域Ｓ２と、股下域Ｓ３と、を有する。前胴回り域Ｓ１は、着用者の前胴回り（腹部）に対向する領域である。後胴回り域Ｓ２は、着用者の後胴回り（背部）に対向する領域である。股下域Ｓ３は、着用者の股下に位置し、前胴回り域Ｓ１と後胴回り域Ｓ２との間に配置された領域である。股下域Ｓ３は、後述する脚回り開口部６６（図１参照）が形成された領域である。前胴回り域Ｓ１の股下域側の境界は、脚回り開口部６６の前端縁であり、後胴回り域Ｓ２の股下域側の境界は、脚回り開口部６６の後端縁である。 The absorbent article 10 has a front-back direction L and a width direction W that are orthogonal to each other. The front-rear direction L is defined by the direction extending to the front side of the body and the back side of the body. In other words, the front-back direction L is a direction extending in the front-back direction in the expanded absorbent article 10. Further, the absorbent article 10 has the thickness directions orthogonal to both the front-rear direction L and the width direction W. The absorbent article 10 has a front waistline region S1, a back waistline region S2, and a crotch region S3. The front waistline region S1 is a region facing the front waistline (abdomen) of the wearer. The rear waistline region S2 is a region facing the rear waistline (back part) of the wearer. The crotch region S3 is a region located at the crotch of the wearer and arranged between the front waistline region S1 and the rear waistline region S2. The crotch region S3 is a region in which leg openings 66 (see FIG. 1) described later are formed. The boundary on the crotch region side of the front waistline region S1 is the front end edge of the leg waist opening 66, and the boundary on the crotch region side of the rear waistline region S2 is the rear end edge of the leg waist opening 66.
　吸収性物品１０は、吸収性本体４０と、ウエストベルト１５と、を有していてよい。ウエストベルト１５は、吸収性本体４０と厚み方向に重なっている。ウエストベルト１５は、前ウエストベルト２０と、後ウエストベルト３０と、を有してよい。前ウエストベルト２０は、前胴回り域Ｓ１において、吸収性本体４０と重なる領域と、吸収性本体４０と重ならない領域と、に配置されている。後ウエストベルト３０は、前ウエストベルト２０と前後方向Ｌに離間している。後ウエストベルト３０は、後胴回り域Ｓ２において、吸収性本体４０と重なる領域と、吸収性本体４０と重ならない領域と、に配置されている。なお、他の実施形態において、ウエストベルト１５は、前ウエストベルト２０及び後ウエストベルト３０が一体化され、かつ前胴回り域Ｓ１から後胴回り域Ｓ２に亘って設けられていてもよい。 The absorbent article 10 may include an absorbent main body 40 and a waist belt 15. The waist belt 15 overlaps the absorbent main body 40 in the thickness direction. The waist belt 15 may include a front waist belt 20 and a rear waist belt 30. The front waist belt 20 is arranged in a region that overlaps the absorbent main body 40 and a region that does not overlap the absorbent main body 40 in the front waistline region S1. The rear waist belt 30 is separated from the front waist belt 20 in the front-rear direction L. The rear waist belt 30 is arranged in a region that overlaps with the absorbent main body 40 and a region that does not overlap with the absorbent main body 40 in the rear waistline region S2. In addition, in another embodiment, the front waist belt 20 and the rear waist belt 30 may be integrated, and the waist belt 15 may be provided from the front waistline region S1 to the rear waistline region S2.
　図３に示すように、前ウエストベルト２０は、吸収性本体４０の肌面側Ｔ１に配置された前カバーシート２７と、吸収性本体４０の非肌面側Ｔ２に配置された前第１外装シート２５と、前第１外装シート２５の非肌面側Ｔ２に位置する前第２外装シート２６と、前第１外装シート２５と前第２外装シート２６の間に配置された外装伸縮シート２８と、を有してよい。吸収性本体４０と重ならない領域では、前カバーシート２７、前第１外装シート２５、外装伸縮シート２８及び前第２外装シート２６が肌面側Ｔ１から非肌面側Ｔ２に向かって順に積層され、互いに接合されている。なお、前カバーシート２７、前第１外装シート２５及び前第２外装シート２６は、別々のシートによって構成されていてもよいし、折り返された同一のシートによって構成されていてもよい。前カバーシート２７、前第１外装シート２５、前第２外装シート２６及び外装伸縮シート２８は、本発明の複合シート７０を構成してよい。前カバーシート２７と前第１外装シート２５は、本発明の第１シート７１を構成し、前第２外装シート２６は、本発明の第２シート７２を構成し、外装伸縮シート２８は、本発明の伸縮性部材７３を構成してよい。なお、複合シート７０については、後述にて詳細に説明する。 As shown in FIG. 3, the front waist belt 20 includes a front cover sheet 27 arranged on the skin surface side T1 of the absorbent main body 40 and a front first outer cover arranged on the non-skin surface side T2 of the absorbent main body 40. The sheet 25, the front second exterior sheet 26 located on the non-skin surface side T2 of the front first exterior sheet 25, and the exterior stretchable sheet 28 arranged between the front first exterior sheet 25 and the front second exterior sheet 26. And may have. In a region that does not overlap with the absorbent main body 40, the front cover sheet 27, the front first exterior sheet 25, the exterior stretch sheet 28, and the front second exterior sheet 26 are sequentially laminated from the skin surface side T1 toward the non-skin surface side T2. , Joined to each other. The front cover sheet 27, the front first exterior sheet 25, and the front second exterior sheet 26 may be formed of separate sheets, or may be formed of the same folded sheet. The front cover sheet 27, the front first exterior sheet 25, the front second exterior sheet 26, and the exterior stretch sheet 28 may constitute the composite sheet 70 of the present invention. The front cover sheet 27 and the front first exterior sheet 25 constitute a first sheet 71 of the present invention, the front second exterior sheet 26 constitutes a second sheet 72 of the present invention, and the exterior elastic sheet 28 is a book. The stretchable member 73 of the invention may be configured. The composite sheet 70 will be described in detail later.
　図３に示すように、後ウエストベルト３０は、吸収性本体４０の肌面側Ｔ１に配置された後カバーシート３７と、吸収性本体４０の非肌面側Ｔ２に配置された後第１外装シート３５と、後第１外装シート３５の非肌面側Ｔ２に位置する後第２外装シート３６と、後第１外装シート３５と後第２外装シート３６の間に配置された後側糸ゴム３８と、を有してよい。吸収性本体４０と重ならない領域では、後カバーシート３７、後第１外装シート３５、後側糸ゴム３８及び後第２外装シート３６が肌面側Ｔ１から非肌面側Ｔ２に向かって順に積層され、互いに接合されてよい。また、後第１外装シート３５の肌面側には、後第３外装シート３９が配置されてよい。後第３外装シート３９が配置された領域では、後カバーシート３７、後第３外装シート３９、後第１外装シート３５、後側糸ゴム３８及び後第２外装シート３６が肌面側Ｔ１から非肌面側Ｔ２に向かって順に積層され、互いに接合されてよい。なお、後カバーシート３７、後第１外装シート３５、後第２外装シート３６及び後第３外装シート３９は、別々のシートによって構成されていてもよいし、折り返された同一のシートによって構成されていてもよい。本実施の形態では、後第２外装シート３６及び後第３外装シート３９は、胴回り開口部６２において折り返された同一のシートによって構成されている。後第１外装シート３５、後第２外装シート３６及び後側糸ゴム３８は、本発明の複合シート７０を構成してよい。後第１外装シート３５は、本発明の第１シート７１を構成し、前第２外装シート２６は、本発明の第２シート７２を構成し、後側糸ゴム３８は、本発明の伸縮性部材７３を構成してよい。 As shown in FIG. 3, the rear waist belt 30 includes a rear cover sheet 37 arranged on the skin surface side T1 of the absorbent main body 40 and a rear first exterior member arranged on the non-skin surface side T2 of the absorbent main body 40. The sheet 35, the rear second exterior sheet 36 located on the non-skin surface side T2 of the rear first exterior sheet 35, and the rear thread rubber disposed between the rear first exterior sheet 35 and the rear second exterior sheet 36. 38. In a region that does not overlap with the absorbent main body 40, the rear cover sheet 37, the rear first exterior sheet 35, the rear thread rubber 38, and the rear second exterior sheet 36 are sequentially laminated from the skin surface side T1 toward the non-skin surface side T2. And may be joined together. Further, the rear third exterior sheet 39 may be arranged on the skin side of the rear first exterior sheet 35. In the area where the rear third exterior sheet 39 is arranged, the rear cover sheet 37, the rear third exterior sheet 39, the rear first exterior sheet 35, the rear thread rubber 38, and the rear second exterior sheet 36 are from the skin surface side T1. The layers may be sequentially stacked toward the non-skin surface side T2 and bonded to each other. The rear cover sheet 37, the rear first exterior sheet 35, the rear second exterior sheet 36, and the rear third exterior sheet 39 may be separate sheets, or may be the same folded sheet. May be In the present embodiment, the rear second exterior sheet 36 and the rear third exterior sheet 39 are made of the same sheet folded at the waistline opening 62. The rear first exterior sheet 35, the rear second exterior sheet 36, and the rear thread rubber 38 may form the composite sheet 70 of the present invention. The rear first exterior sheet 35 constitutes the first sheet 71 of the present invention, the front second exterior sheet 26 constitutes the second sheet 72 of the present invention, and the rear thread rubber 38 is the stretchable material of the present invention. The member 73 may be configured.
　図１に示すように、幅方向Ｗにおける前胴回り域Ｓ１の端部と、幅方向Ｗにおける後胴回り域Ｓ２の端部と、を接合したサイド接合部６０が設けられていてよい。サイド接合部６０は、幅方向Ｗにおける前胴回り域Ｓ１の端部と、幅方向Ｗにおける後胴回り域Ｓ２の端部とを互いに係止した部分によって規定される。なお、本発明における外側部とは、幅方向Ｗにおける外縁を含む幅方向Ｗに一定の範囲を占める部分であり、外側縁とは、幅方向Ｗにおける外縁である。本発明における内側部とは、幅方向Ｗにおける内縁を含む幅方向Ｗに一定の範囲を占める部分であり、内側縁とは、幅方向Ｗにおける内縁である。また、本発明における前端部及び後端部は、前後方向Ｌにおける縁を含む前後方向Ｌに一定の範囲を占める部分であり、前端縁及び後端縁は、前後方向Ｌにおける縁である。外端部は、前端部及び後端部を含んでおり、外端縁は、前端縁及び後端縁を含んでいる。 As shown in FIG. 1, a side joint 60 may be provided that joins the end of the front waistline region S1 in the width direction W and the end of the rear waistline region S2 in the width direction W. The side joint portion 60 is defined by a portion in which an end portion of the front waistline region S1 in the width direction W and an end portion of the rear waistline region S2 in the width direction W are locked to each other. The outer portion in the present invention is a portion that occupies a certain range in the width direction W including the outer edge in the width direction W, and the outer edge is the outer edge in the width direction W. The inner portion in the present invention is a portion that occupies a certain range in the width direction W including the inner edge in the width direction W, and the inner edge is the inner edge in the width direction W. Further, the front end portion and the rear end portion in the present invention are portions that occupy a certain range in the front-rear direction L including the edges in the front-rear direction L, and the front end edge and the rear end edge are edges in the front-rear direction L. The outer end portion includes a front end portion and a rear end portion, and the outer end edge includes a front end edge and a rear end edge.
　図１に示すように、サイド接合部６０が形成された状態で、吸収性物品１０には、着用者の胴が通される胴回り開口部６２と、着用者の脚がそれぞれ挿入される一対の脚回り開口部６６と、が形成される。胴回り開口部６２は、前胴回り域Ｓ１の前端縁Ｓ１Ｆと、後胴回り域Ｓ２の後端縁Ｓ２Ｒとによって規定されていてよい。ここで、図２は、サイド接合部６０における接合を解除し、吸収性物品１０を展開した状態を示している。サイド接合部６０は、前ウエストベルト２０及び後ウエストベルト３０のそれぞれにおいて、前後方向Ｌに沿って延びていてよい。パンツ型の吸収性物品においては、前胴回り域Ｓ１と股下域Ｓ３との境界は、前ウエストベルト２０に設けられたサイド接合部６０の後端縁によって規定されていてよい。同様に、後胴回り域Ｓ２と股下域Ｓ３との境界は、後ウエストベルト３０に設けられたサイド接合部６０の前端縁によって規定されていてよい。 As shown in FIG. 1, in the state where the side joints 60 are formed, the absorbent article 10 has a waistline opening 62 through which the wearer's torso passes and a pair of legs into which the wearer's legs are inserted. The leg openings 66 are formed. The waistline opening 62 may be defined by a front edge S1F of the front waistline region S1 and a rear edge S2R of the rear waistline region S2. Here, FIG. 2 shows a state in which the joining at the side joining portion 60 is released and the absorbent article 10 is expanded. The side joint portion 60 may extend along the front-rear direction L in each of the front waist belt 20 and the rear waist belt 30. In the pants-type absorbent article, the boundary between the front waistline region S1 and the crotch region S3 may be defined by the rear end edge of the side joint portion 60 provided on the front waist belt 20. Similarly, the boundary between the rear waistline region S2 and the crotch region S3 may be defined by the front end edge of the side joint portion 60 provided on the rear waist belt 30.
　図３に示すように、前胴回り域Ｓ１には、幅方向Ｗに伸縮可能な伸縮性部材が配置されてよい。伸縮性部材は、幅方向Ｗに伸縮可能な前側糸ゴム２２、及び幅方向Ｗに伸縮可能な外装伸縮シート２８の少なくともいずれかによって構成されていてよい。この代わりに、伸縮性部材は、例えば伸縮可能なシートにより構成された前ウエストベルト２０自体によって構成されていてもよい。後胴回り域Ｓ２には、幅方向Ｗに伸縮可能な伸縮性部材が配置されてよい。伸縮性部材は、幅方向Ｗに伸縮可能な後側糸ゴム３８、及び幅方向Ｗに伸縮可能な外装伸縮シートの少なくともいずれかによって構成されていてよい。この代わりに、伸縮性部材は、例えば伸縮可能なシートにより構成された後ウエストベルト３０自体によって構成されていてもよい。 As shown in FIG. 3, a stretchable member that can stretch in the width direction W may be arranged in the front waistline region S1. The elastic member may be composed of at least one of the front side thread rubber 22 that can expand and contract in the width direction W and the exterior elastic sheet 28 that can expand and contract in the width direction W. Alternatively, the stretchable member may be configured by the front waist belt 20 itself configured by a stretchable sheet, for example. An elastic member that can expand and contract in the width direction W may be arranged in the rear waistline region S2. The stretchable member may be configured by at least one of the rear thread rubber 38 that is stretchable in the width direction W and the exterior stretchable sheet that is stretchable in the width direction W. Alternatively, the stretchable member may be configured by the rear waist belt 30 itself which is configured by a stretchable sheet, for example.
　吸収性本体４０は、前ウエストベルト２０と後ウエストベルト３０とに跨って配置されている。すなわち、吸収性本体４０は、前胴回り域Ｓ１、後胴回り域Ｓ２及び股下域Ｓ３にわたって延びている。吸収性本体４０は、前ウエストベルト２０及び後ウエストベルト３０とは別体として構成されていてよい。この場合、吸収性本体４０は、前胴回り域Ｓ１及び後胴回り域Ｓ２において、それぞれ前ウエストベルト２０及び後ウエストベルト３０と接合されていてよい。吸収性本体４０は、少なくとも吸収コア５０を含んでいる。吸収コア５０は、例えば粉砕パルプもしくは高吸収性ポリマー（ＳＡＰ）、又はこれらの混合物を含んでいてよい。吸収コア５０は、少なくとも股下域Ｓ３に配置されている。好ましくは、吸収コア５０は、前後方向Ｌにおいて、前胴回り域Ｓ１から後胴回り域Ｓ２にわたって延びていてよい。吸収コア５０は、コアラップによって覆われていてよい。さらに、図３に示すように、吸収性本体４０は、吸収コアの肌面側に配置された肌面シート４２Ａと、吸収コア５０の非肌面側に配置された液不透過シート４１と、液不透過シート４１よりも非肌面側Ｔ２に配置された本体シート４２Ｂと、を有していてよい。 The absorbent main body 40 is arranged so as to straddle the front waist belt 20 and the rear waist belt 30. That is, the absorbent main body 40 extends over the front waistline region S1, the rear waistline region S2, and the crotch region S3. The absorbent body 40 may be configured separately from the front waist belt 20 and the rear waist belt 30. In this case, the absorbent main body 40 may be joined to the front waist belt 20 and the rear waist belt 30 in the front waist region S1 and the back waist region S2, respectively. The absorbent body 40 includes at least an absorbent core 50. The absorbent core 50 may include, for example, ground pulp or super absorbent polymer (SAP), or a mixture thereof. The absorbent core 50 is arranged at least in the crotch region S3. Preferably, the absorbent core 50 may extend in the front-rear direction L from the front waistline region S1 to the rear waistline region S2. The absorbent core 50 may be covered by a core wrap. Further, as shown in FIG. 3, the absorbent main body 40 includes a skin surface sheet 42A arranged on the skin surface side of the absorbent core, and a liquid impermeable sheet 41 arranged on the non-skin surface side of the absorbent core 50. The main body sheet 42B arranged on the non-skin surface side T2 with respect to the liquid impermeable sheet 41 may be included.
　本実施の形態の吸収性本体４０は、吸収コアよりも前側の領域において、肌面側Ｔ１から非肌面側Ｔ２に向かって、肌面シート４２Ａ、液不透過シート４１、本体シート４２Ｂの順で配置されている。また、吸収コア５０と重なった領域では、肌面側Ｔ１から非肌面側Ｔ２に向かって、肌面シート４２Ａ、吸収コア５０、液不透過シート４１、本体シート４２Ｂの順で配置されている。肌面シート４２Ａと液不透過シート４１は、厚み方向Ｔにおいて吸収コア５０を挟んで配置されてよい。液不透過シート４１は、透不液性であればよく、例えば、フィルムによって構成されてよい。肌面シート４２Ａ及び本体シート４２Ｂは、透液性であればよく、例えば不織布によって構成されていてよい。 In the absorbent main body 40 of the present embodiment, in the region on the front side of the absorbent core, the skin surface sheet 42A, the liquid impermeable sheet 41, and the main body sheet 42B are arranged in this order from the skin surface side T1 to the non-skin surface side T2. It is located at. In the region overlapping with the absorbent core 50, the skin surface sheet 42A, the absorbent core 50, the liquid impermeable sheet 41, and the main body sheet 42B are arranged in this order from the skin surface side T1 to the non-skin surface side T2. .. The skin surface sheet 42A and the liquid impermeable sheet 41 may be arranged so as to sandwich the absorbent core 50 in the thickness direction T. The liquid-impermeable sheet 41 may be liquid-impermeable and may be formed of, for example, a film. The skin sheet 42A and the main body sheet 42B may be liquid-permeable and may be made of, for example, a nonwoven fabric.
　（３）複合シートの構成
　次いで、図３から図５に基づいて、複合シート７０の構成について詳細に説明する。図４は、図２に示すＢ部分における複合シートの平面図であり、図５は、図４に示すＣ－Ｃ線に沿った断面図である。図４及び図５は、伸長状態の複合シートを示している。図４及び図５では、Ｂ部分における複合シートを示しており、後ウエストベルト３０を構成する部材のうち、後カバーシート３７及び後第３外装シート３９を省略している。なお、以下の説明では、後ウエストベルトにおける複合シートを説明する。しかし、上述のように、前ウエストベルト２０も複合シートを有していてよく、後ウエストベルトにおける複合シートの構成は、前ウエストベルト２０における複合シートにも適用可能である。 (3) Configuration of Composite Sheet Next, the configuration of the composite sheet 70 will be described in detail with reference to FIGS. 3 to 5. 4 is a plan view of the composite sheet in the portion B shown in FIG. 2, and FIG. 5 is a cross-sectional view taken along the line CC shown in FIG. 4 and 5 show the composite sheet in the stretched state. 4 and 5, the composite sheet in the portion B is shown, and the rear cover sheet 37 and the rear third exterior sheet 39 among the members constituting the rear waist belt 30 are omitted. In the following description, the composite sheet of the rear waist belt will be described. However, as described above, the front waist belt 20 may also have the composite sheet, and the configuration of the composite sheet in the rear waist belt is applicable to the composite sheet in the front waist belt 20.
　複合シート７０は、２層以上のシートが積層された積層体７６を有する第１シート７１と、第１シート７１と重ねて配置された第２シート７２と、第１シート７１と第２シート７２の間に配置され、かつ第１方向Ｄ１に伸縮する伸縮性部材７３と、を有する。上述のように、後第１外装シート３５は、第１シート７１を構成し、後第２外装シート３６は、第２シート７２を構成し、後側糸ゴム３８は、伸縮性部材７３を構成している。 The composite sheet 70 includes a first sheet 71 having a laminated body 76 in which two or more layers are laminated, a second sheet 72 arranged so as to overlap the first sheet 71, a first sheet 71 and a second sheet 72. And a stretchable member 73 that is disposed between and that stretches in the first direction D1. As described above, the rear first exterior sheet 35 constitutes the first sheet 71, the rear second exterior sheet 36 constitutes the second sheet 72, and the rear thread rubber 38 constitutes the elastic member 73. doing.
　第１シート７１としての後第１外装シート３５は、２層以上のシートが積層された積層体７６を有する。第１シート７１を構成するシートは、限定されないが、例えば、不織布を例示できる。後第１外装シート３５は、積層体７６のみによって構成されていてもよいし、他のシートを含んでいてもよい。積層体７６は、同一又は別体のシートが重なっていればよく、３層以上であってもよい。第１シート７１には、積層体７６を構成するシートを接合する接合部７５が設けられてよい。接合部７５は、第２シート７２に到達しないように設けられていればよく、第１シート７１の厚み方向Ｔの全域に設けられていてもよいし、第１シート７１の厚み方向Ｔの一部に設けられていてもよい。具体的には、第１シート７１を構成するシート同士を熱又は超音波によって溶着した溶着部、シート同士を厚み方向に圧縮したエンボス部、シート同士を接着剤で接合した接着部を例示できる。接合部７５は、平面視にて間隔を空けて複数設けられている。すなわち、接合部７５は、前後方向Ｌ及び幅方向のうち少なくとも一方において間隔を空けて配置されている。 The rear first exterior sheet 35 as the first sheet 71 has a laminated body 76 in which two or more layers are laminated. The sheet forming the first sheet 71 is not limited, but may be, for example, a nonwoven fabric. The rear first exterior sheet 35 may be composed of only the laminated body 76 or may include other sheets. The laminate 76 may have three or more layers as long as the same or different sheets are overlapped. The first sheet 71 may be provided with a joining portion 75 that joins the sheets forming the laminated body 76. The joining portion 75 may be provided so as not to reach the second sheet 72, may be provided over the entire area in the thickness direction T of the first sheet 71, or may be provided in one portion of the thickness direction T of the first sheet 71. It may be provided in the section. Specifically, examples include a welded portion formed by welding the sheets forming the first sheet 71 by heat or ultrasonic waves, an embossed portion formed by compressing the sheets in the thickness direction, and an adhesive portion formed by joining the sheets with an adhesive. A plurality of the joint portions 75 are provided at intervals in a plan view. That is, the joint portions 75 are arranged at intervals in at least one of the front-rear direction L and the width direction.
　伸縮性部材としての後側糸ゴム３８は、第１方向としての幅方向Ｗに伸縮可能に構成されている。後側糸ゴム３８は、幅方向に伸長された状態で、後第１外装シート３５（第１シート７１）と後第２外装シート３６（第２シート７２）の間において、後第１外装シート３５と後第２外装シート３６に接合されている。後側糸ゴム３８の固定手段は、限定されないが、例えば、接着剤を例示できる。また、伸縮性部材７３は、糸ゴムによって構成されていてもよいし、外装伸縮シート２８のように、シート状であってもよい。実施の形態の後側糸ゴム３８は、複数の糸ゴムによって構成されており、第１方向Ｄ１と直交する第２方向Ｄ２（前後方向Ｌ）において間隔を空けて配置されている。第２シート７２としての後第２外装シート３６は、伸縮性部材７３を覆っている。伸縮性部材７３の厚み方向Ｔの一方側には、第１シート７１が配置され、他方側には、第２シート７２が配置される。第２シート７２を構成するシートは、限定されないが、例えば、不織布を例示できる。第２シート７２は、第１シート７１に形成された接合部７５が形成されてなく、当該接合部７５とは別の接合手段によって第１シート７１及び／又は伸縮性部材７３に接合されている。 The rear thread rubber 38 as a stretchable member is configured to be stretchable in the width direction W as the first direction. The rear side rubber thread 38 is stretched in the width direction and is located between the rear first exterior sheet 35 (first sheet 71) and the rear second exterior sheet 36 (second sheet 72). 35 and the second rear exterior sheet 36. The fixing means of the rear side thread rubber 38 is not limited, but for example, an adhesive can be used. The stretchable member 73 may be made of rubber thread, or may be in the form of a sheet like the exterior stretchable sheet 28. The rear side thread rubber 38 of the embodiment is formed of a plurality of thread rubbers, and is arranged at intervals in the second direction D2 (front-rear direction L) orthogonal to the first direction D1. The rear second exterior sheet 36 as the second sheet 72 covers the stretchable member 73. The first sheet 71 is arranged on one side of the elastic member 73 in the thickness direction T, and the second sheet 72 is arranged on the other side. The sheet forming the second sheet 72 is not limited, but may be, for example, a non-woven fabric. The second sheet 72 does not have the joining portion 75 formed on the first sheet 71, and is joined to the first sheet 71 and/or the elastic member 73 by a joining means different from the joining portion 75. ..
　このように構成された複合シート７０の収縮時の変形態様について説明する。図６は、複合シート７０の変形態様を説明するための図であり、図４のＤ―Ｄ線に沿った断面を基準としている。図６（ａ）は、伸長状態であり、図６（ｂ）は、伸縮性部材が収縮した収縮状態を示している。複合シート７０は、伸縮性部材７３の収縮によって第１シート７１と第２シート７２が第１方向Ｄ１に収縮する。この伸縮性部材７３の収縮により、第１シート７１における接合部７５間の領域が厚み方向Ｔに膨らむように変形して、隣接する接合部７５間に第１シート７１からなる襞を形成できる。加えて、伸縮性部材の収縮によって第２シート７２も収縮し、第２シート７２に襞が形成される。よって、複合シート７０は、その表面に襞が形成され、クッション性が向上する。また、第１シート７１の接合部は、第２シートに形成されていないため、第１シート７１に形成される襞と、第２シートに形成される襞と、が異なる位置及び態様で形成される。第１シート７１に形成される襞と第２シートに形成される襞が一体化した構成と比較して、よりクッション性が高まる。 A description will be given of the deformation mode of the composite sheet 70 configured in this way when contracted. FIG. 6 is a diagram for explaining a modified mode of the composite sheet 70, which is based on the cross section taken along the line DD of FIG. FIG. 6A shows an expanded state, and FIG. 6B shows a contracted state in which the elastic member contracts. In the composite sheet 70, the contraction of the elastic member 73 causes the first sheet 71 and the second sheet 72 to contract in the first direction D1. Due to the contraction of the elastic member 73, the region between the joint portions 75 of the first sheet 71 is deformed so as to expand in the thickness direction T, and the folds formed of the first sheet 71 can be formed between the adjacent joint portions 75. In addition, the contraction of the stretchable member also contracts the second sheet 72, and the folds are formed on the second sheet 72. Therefore, the folds are formed on the surface of the composite sheet 70, and the cushioning property is improved. Further, since the joint portion of the first sheet 71 is not formed on the second sheet, the folds formed on the first sheet 71 and the folds formed on the second sheet are formed at different positions and modes. It The cushioning property is further enhanced as compared with the configuration in which the folds formed on the first sheet 71 and the folds formed on the second sheet are integrated.
　複合シート７０は、第１シート７１と第２シート７２が当接する当接領域７７を有してよい。当接領域７７は、伸縮性部材７３と重ならない領域において、第１シート７１と第２シート７２との間に他の部材が配置されていない領域である。図５において、当接領域７７を示す。第１シート７１と第２シート７２の間に伸縮性部材７３以外のシート等が配置されていないため、伸縮性部材以外の部材が配置される形態と比較して、伸縮性部材７３による収縮力が伝わり易くなり、複合シート７０のクッション性をより高めることができる。 The composite sheet 70 may have a contact area 77 where the first sheet 71 and the second sheet 72 contact. The contact region 77 is a region in which other members are not arranged between the first sheet 71 and the second sheet 72 in a region that does not overlap the elastic member 73. In FIG. 5, the contact area 77 is shown. Since no sheets other than the stretchable member 73 are arranged between the first sheet 71 and the second sheet 72, the contracting force of the stretchable member 73 is greater than that in the case where members other than the stretchable member are arranged. Is easily transmitted, and the cushioning property of the composite sheet 70 can be further enhanced.
　積層体７６の端縁には、積層体７６を構成するシートを折り畳んだ折り目ＦＬ７６が設けられてよい。折り畳まれたシートによって積層体７６を構成することにより、別体のシートが積層された積層体７６と比較して、部品点数を低減できる。また、積層体７６の折り目ＦＬ７６が設けられた端縁では、積層されたシートの位置ズレが生じない。積層体７６を構成するシートの位置ズレが抑制され、吸収性物品１０の精度を向上できる。加えて、積層体７６を構成するシート間の空気が抜け難い。シート間に隙間が形成され易く、積層体７６のクッション性が向上し、複合シート７０のクッション性を更に向上できる。 A fold line FL76 obtained by folding a sheet forming the laminated body 76 may be provided on an edge of the laminated body 76. By configuring the laminated body 76 with the folded sheets, the number of parts can be reduced as compared with the laminated body 76 in which separate sheets are laminated. Further, at the edge of the laminated body 76 where the fold line FL76 is provided, the positional deviation of the laminated sheets does not occur. The positional deviation of the sheets forming the laminated body 76 is suppressed, and the accuracy of the absorbent article 10 can be improved. In addition, it is difficult for air to escape between the sheets forming the laminated body 76. A gap is easily formed between the sheets, the cushioning property of the laminate 76 is improved, and the cushioning property of the composite sheet 70 can be further improved.
　積層体７６を構成するシート同士の接合方法は、限定されず、熱又は超音波による溶着、エンボス加工、及び接着剤を例示できる。積層体を構成するシート同士の接合及び第１シート７１と第２シート７２の接合は、接着剤によって接合されてよい。この形態においては、積層体を接合する接着剤の坪量は、第１シート７１と第２シート７２を接合する接着剤の坪量よりも低くてよい。第１シート７１と第２シート７２の間に設けられる接着剤の坪量が高いため、第１シート７１及び第２シート７２に対する伸縮性部材７３の接合強度が高くなり、伸縮性部材７３の収縮が第１シート７１及び第２シート７２に伝わり易くなる。また、積層体７６の接着剤の坪量が低いため、積層体７６を構成するシートが柔軟に変形し易く、積層体７６に襞を形成し易い。よって、積層体７６のクッション性が向上し、当該製造方法によって得られた複合シート７０のクッション性を向上できる。 The method of joining the sheets forming the laminate 76 is not limited, and examples thereof include welding by heat or ultrasonic waves, embossing, and an adhesive. The joining of the sheets forming the laminate and the joining of the first sheet 71 and the second sheet 72 may be joined by an adhesive. In this form, the basis weight of the adhesive that bonds the laminate may be lower than the basis weight of the adhesive that bonds the first sheet 71 and the second sheet 72. Since the basis weight of the adhesive provided between the first sheet 71 and the second sheet 72 is high, the bonding strength of the elastic member 73 to the first sheet 71 and the second sheet 72 is high, and the elastic member 73 contracts. Is easily transmitted to the first sheet 71 and the second sheet 72. Further, since the basis weight of the adhesive of the laminated body 76 is low, the sheets forming the laminated body 76 are easily deformed flexibly, and the folds are easily formed on the laminated body 76. Therefore, the cushioning property of the laminated body 76 is improved, and the cushioning property of the composite sheet 70 obtained by the manufacturing method can be improved.
　図５に示すように、伸縮性部材７３は、伸縮方向である第１方向Ｄ１と直交する第２方向Ｄ２に間隔を空けて複数設けられ、接合部７５は、第２方向Ｄ２に間隔を空けて複数設けられてよい。この形態においては、第２方向Ｄ２における接合部７５のピッチＤ２７５は、第２方向Ｄ２における伸縮性部材７３のピッチＤ２７３よりも短くてよい。接合部７５が第２方向Ｄ２に間隔を空けて複数配置されているため、第２方向Ｄ２に延びる襞を形成できる。また、接合部７５のピッチが短いため、より細かい襞を形成できる。 As shown in FIG. 5, a plurality of elastic members 73 are provided at intervals in a second direction D2 that is orthogonal to the first direction D1 that is the expansion/contraction direction, and the joint portions 75 are provided at intervals in the second direction D2. Multiple may be provided. In this embodiment, the pitch D275 of the joint portions 75 in the second direction D2 may be shorter than the pitch D273 of the elastic members 73 in the second direction D2. Since the plurality of joint portions 75 are arranged at intervals in the second direction D2, the folds extending in the second direction D2 can be formed. Further, since the pitch of the joint portions 75 is short, it is possible to form finer folds.
　（４）複合シートを有する吸収性物品の構成
　次いで、上述の複合シート７０を有する吸収性物品１０の構成について説明する。複合シート７０はクッション性を有しており、特に肌触りを向上させたい領域に配置することが好ましい。本実施の形態では、前ウエストベルト２０と後ウエストベルト３０に複合シート７０が配置されている。高いクッション性を有する複合シート７０を有するウエストベルト１５を備えることにより、腰周りに対する肌触りを向上できる。変形例として、着用者の脚回りに沿って配置されるレッグフラップに複合シートが配置されていてもよい。変形例によれば、着用者の脚回りに対する肌触りを向上できる。 (4) Configuration of Absorbent Article Having Composite Sheet Next, the configuration of the absorbent article 10 having the above-described composite sheet 70 will be described. The composite sheet 70 has a cushioning property, and it is particularly preferable to dispose the composite sheet 70 in a region where the touch is desired to be improved. In the present embodiment, the composite sheet 70 is arranged on the front waist belt 20 and the rear waist belt 30. By providing the waist belt 15 including the composite sheet 70 having high cushioning properties, the feel of the waist can be improved. Alternatively, the composite sheet may be arranged on the leg flaps arranged along the circumference of the wearer's legs. According to the modified example, the feel of the wearer around the legs can be improved.
　複合シートの第１シート７１は、第２シート７２よりも肌面側Ｔ１に位置してよい。肌に触れる面側のクッション性を向上でき、着用者の肌触りを向上できる。より好適には、複合シート７０の第１シート７１は、吸収性物品１０において最も肌側に位置する面、すなわち着用者に直接触れる面に設けられてよい。このような構成によれば、着用者の肌触りを向上できる。本実施の形態では、前ウエストベルト２０において第１シート７１を構成する前カバーシート２７は、着用者に直接触れる面に設けられている。 The first sheet 71 of the composite sheet may be located closer to the skin surface side T1 than the second sheet 72. The cushioning property of the side that comes into contact with the skin can be improved, and the feel of the wearer can be improved. More preferably, the first sheet 71 of the composite sheet 70 may be provided on the most skin-side surface of the absorbent article 10, that is, the surface that directly contacts the wearer. With such a configuration, the feel of the wearer can be improved. In the present embodiment, the front cover sheet 27 forming the first sheet 71 in the front waist belt 20 is provided on the surface that directly contacts the wearer.
　第１シート７１及び第２シート７２は、繊維を有する不織布又は織布によって構成されており、第１シート７１の繊維の坪量は、第２シート７２の繊維の坪量よりも高くてよい。第１シート７１の坪量が高いため、第１シート７１に形成された襞が潰れ難く、当該皺を維持し易い。よって、第１シート７１のクッション性がより向上し、肌触りを向上できる。また、変形例において、第１シート７１の繊維の坪量は、第２シート７２の繊維の坪量よりも低くてよい。第１シートの坪量が比較的低いため、第１シートが変形し易く、第１シートに襞が形成され易い。よって、第１シート７１のクッション性がより向上し、肌触りを向上できる。 The first sheet 71 and the second sheet 72 are made of a non-woven fabric or a woven fabric having fibers, and the basis weight of the fibers of the first sheet 71 may be higher than the basis weight of the fibers of the second sheet 72. Since the basis weight of the first sheet 71 is high, the folds formed on the first sheet 71 are less likely to be crushed and the wrinkles are easily maintained. Therefore, the cushioning property of the first sheet 71 is further improved, and the touch can be improved. Further, in a modified example, the basis weight of the fibers of the first sheet 71 may be lower than the basis weight of the fibers of the second sheet 72. Since the basis weight of the first sheet is relatively low, the first sheet is likely to be deformed and folds are easily formed on the first sheet. Therefore, the cushioning property of the first sheet 71 is further improved, and the touch can be improved.
　第１シート７１の前後方向Ｌの外端縁には、シートが折り畳まれた第１折り目ＦＬ７１が幅方向に沿って設けられてよい。第１折り目ＦＬ７１は、吸収性本体の前後方向の外端縁よりも前後方向の外側に配置されてよい。具体的には、後第１外装シート３５は、積層体を構成するシートが折り畳まれた折り目ＦＬ７６が設けられている。折り目ＦＬ７６は、第１折り目ＦＬ７１を構成する。第１折り目ＦＬ７１は、第１シート７１の後端縁７１Ｒに位置し、幅方向Ｗに沿って延びている。第１折り目ＦＬ７１は、吸収性本体４０の後端縁４０Ｒと離間し、吸収性本体４０の後端縁４０Ｒよりも後側に位置する。第１シート７１における第１折り目ＦＬ７１の近傍の領域は、第１折り目ＦＬ７１を介して降り畳まれたシート間に隙間が形成され易く、第１シート７１の厚みが厚くなり易い。吸収性本体４０の外端縁よりも前後方向の外側の領域は、吸収性本体が配置された領域よりも厚みに対して厚み差が生じやすいが、当該厚み差を第１シート７１の第１折り目の近傍の領域の厚みによって埋めることができる。よって、ウエストベルトにおける厚み差が少なくなり、肌触りを向上できる。 A first fold FL71 in which the sheet is folded may be provided on the outer edge of the first sheet 71 in the front-rear direction L along the width direction. The first fold FL71 may be arranged outside the front-rear outer edge of the absorbent main body in the front-rear direction. Specifically, the rear first exterior sheet 35 is provided with a fold line FL76 in which the sheets forming the laminated body are folded. The fold line FL76 constitutes the first fold line FL71. The first fold FL71 is located at the rear edge 71R of the first sheet 71 and extends along the width direction W. The first fold FL71 is separated from the rear end edge 40R of the absorbent main body 40 and is located rearward of the rear end edge 40R of the absorbent main body 40. In the area near the first fold FL71 on the first sheet 71, a gap is likely to be formed between the sheets folded down via the first fold FL71, and the thickness of the first sheet 71 is likely to be thick. A region outside the outer edge of the absorbent main body 40 in the front-rear direction is more likely to have a thickness difference with respect to the thickness than the region in which the absorbent main body is arranged. It can be filled by the thickness of the region near the fold. Therefore, the difference in thickness of the waist belt is reduced, and the touch can be improved.
　第２シート７２の前後方向の外端縁には、第２シート７２が折り畳まれた第２折り目ＦＬ７２が幅方向に沿って設けられてよい。第２折り目ＦＬ７２は、吸収性本体４０の前後方向Ｌの外端縁よりも前後方向の外側に配置されてよい。吸収性本体４０の前後方向Ｌの外端縁よりも前後方向の外側とは、吸収性本体４０の後端縁４０Ｒと吸収性物品の後端縁１０Ｒの間の領域、及び吸収性本体４０の前端縁４０Ｆと吸収性物品の前端縁１０Ｆの間の領域である。 The outer edge of the second sheet 72 in the front-rear direction may be provided with a second fold FL72 in which the second sheet 72 is folded along the width direction. The second fold FL72 may be arranged outside the outer edge of the absorbent main body 40 in the front-rear direction L in the front-rear direction. The outer side in the front-rear direction of the absorbent body 40 in the front-rear direction L is an area between the rear edge 40R of the absorbent body 40 and the rear edge 10R of the absorbent article, and the absorbent body 40. It is a region between the front edge 40F and the front edge 10F of the absorbent article.
　本実施の形態では、後第２外装シート３６は、折り目ＦＬ３６において前後方向に折り畳まれている。折り畳まれた部分は、後第３外装シート３９を構成している。後第２外装シート３６の折り目ＦＬ３６は、第２折り目ＦＬ７２を構成する。第２折り目ＦＬ７２は、第２シート７２の後端縁に位置し、幅方向Ｗに沿って延びている。第２折り目ＦＬ７２は、吸収性本体４０の後端縁４０Ｒと離間し、吸収性本体４０の後端縁４０Ｒよりも後側に位置する。第２シート７２の後端縁７２Ｒは、複合シート７０の後端縁を構成し、後ウエストベルト３０の後端縁に位置してよい。吸収性本体４０の外端縁よりも前後方向Ｌの外側の領域は、吸収性本体４０が配置された領域よりも厚みに対して厚み差が生じやすいが、当該厚み差を第２シート７２の第２折り目の近傍の領域の厚みによって更に埋めることができる。 In the present embodiment, the rear second exterior sheet 36 is folded back and forth at the fold line FL36. The folded portion constitutes the rear third exterior sheet 39. The fold FL36 of the rear second exterior sheet 36 constitutes a second fold FL72. The second fold FL72 is located at the rear edge of the second sheet 72 and extends along the width direction W. The second fold line FL72 is separated from the rear end edge 40R of the absorbent main body 40 and is located rearward of the rear end edge 40R of the absorbent main body 40. The rear edge 72R of the second sheet 72 constitutes the rear edge of the composite sheet 70 and may be located at the rear edge of the rear waist belt 30. A region outside the outer edge of the absorbent main body 40 in the front-rear direction L is more likely to have a thickness difference with respect to the thickness than the region in which the absorbent main body 40 is arranged. It can be further filled by the thickness of the region near the second fold.
　好適には、第２折り目ＦＬ７２を介して折り畳まれた第２シート７２間に、第１シート７１の第１折り目が配置されてよい。具体的には、後第２外装シート３６と後第３外装シート３９の間に、第１折り目ＦＬ７１が配置されている。第２折り目ＦＬ７２を介して折り畳まれた第２シート７２間に、第１シート７１の第１折り目が配置されているため、第１折り目ＦＬ７１の近傍のシートの膨らみに重なるように第２折り目ＦＬ７２の近傍の膨らみを設けることができる。ウエストベルトにおける厚み差がより少なくなり、肌触りを向上できる。 Preferably, the first fold of the first sheet 71 may be arranged between the second sheets 72 folded via the second fold FL 72. Specifically, the first fold FL71 is arranged between the rear second exterior sheet 36 and the rear third exterior sheet 39. Since the first fold of the first sheet 71 is arranged between the second sheets 72 folded through the second fold FL72, the second fold FL72 is overlapped with the bulge of the sheet near the first fold FL71. A bulge in the vicinity of can be provided. The difference in the thickness of the waist belt is reduced, and the touch can be improved.
　（５）複合シートの製造方法
　次いで、図７を参照して、このように構成された複合シートの製造方法について説明する。複合シートの製造方法Ｓ１００は、第１シート形成工程Ｓ１１と、第２シート搬送工程Ｓ２１と、接着剤付与工程Ｓ３１と、伸縮性部材配置工程Ｓ４１と、を有してよい。第１シート形成工程Ｓ１１は、搬送方向ＭＤに連続するシートが積層された積層連続体Ｃ７６を用いて第１シート連続体Ｃ７１を形成する。積層連続体Ｃ７６は、２層の以上のシートが積層されており、搬送方向ＭＤに連続している。 (5) Manufacturing Method of Composite Sheet Next, a manufacturing method of the composite sheet thus configured will be described with reference to FIG. 7. The composite sheet manufacturing method S100 may include a first sheet forming step S11, a second sheet conveying step S21, an adhesive applying step S31, and a stretchable member arranging step S41. In the first sheet forming step S11, the first continuous sheet body C71 is formed by using the continuous laminated body C76 in which continuous sheets are stacked in the transport direction MD. The stacked continuous body C76 is formed by stacking two or more sheets and is continuous in the transport direction MD.
　第１シート形成工程Ｓ１１では、平面視にて間隔を空けて複数の接合部７５を積層連続体Ｃ７６に形成する。接合部７５は、平面視にて間隔を空けて配置されていればよく、搬送方向ＭＤにおいて間隔を空けて配置されていてもよいし、搬送方向ＭＤと直交する直交方向ＣＤにおいて間隔を空けて配置されていてもよいし、搬送方向ＭＤ及び直交方向ＣＤにおいて間隔を空けて配置されていてもよい。 In the first sheet forming step S11, a plurality of joint portions 75 are formed on the continuous laminate C76 at intervals in a plan view. The joining portions 75 may be arranged at intervals in a plan view, may be arranged at intervals in the transport direction MD, or may be spaced in the orthogonal direction CD orthogonal to the transport direction MD. They may be arranged, or may be arranged at intervals in the transport direction MD and the orthogonal direction CD.
　第２シート搬送工程Ｓ２１は、搬送方向ＭＤに連続する第２シート連続体Ｃ７２を搬送する。接着剤付与工程Ｓ３１は、第１シート連続体Ｃ７１と第２シート連続体Ｃ７２の間に設けられる伸縮性部材７３を接着するための接着剤を、第１シート連続体Ｃ７１、第２シート連続体Ｃ７２及び伸縮性部材の少なくともいずれかに付与する。なお、第１シート形成工程Ｓ１１、第２シート搬送工程Ｓ２１及び接着剤付与工程Ｓ３１の順序は、第１シート形成工程Ｓ１１の後に接着剤付与工程Ｓ３１が行われればよく、その他は、制限されない。 The second sheet carrying step S21 carries the second sheet continuum C72 continuous in the carrying direction MD. In the adhesive applying step S31, an adhesive for adhering the stretchable member 73 provided between the first sheet continuum C71 and the second sheet continuum C72 is used for the first sheet continuum C71 and the second sheet continuum. It is given to at least one of C72 and the elastic member. The order of the first sheet forming step S11, the second sheet conveying step S21, and the adhesive applying step S31 is not limited as long as the adhesive applying step S31 is performed after the first sheet forming step S11.
　伸縮性部材配置工程Ｓ４１は、第１シート形成工程Ｓ１１、第２シート搬送工程Ｓ２１、及び接着剤付与工程Ｓ３１の後に行われ、第１シート連続体Ｃ７１と第２シート連続体Ｃ７２の間に、接着剤を介して伸長状態の伸縮性部材７３を接着する。伸縮性部材７３の伸縮方向は、限定されないが、好適には、搬送方向ＭＤに沿ってよい。伸縮性部材７３の伸縮方向が、第１シート連続体Ｃ７１及び第２シート連続体Ｃ７２の搬送方向ＭＤに沿うため、製造工程及び設備を簡略化できる。 The elastic member arranging step S41 is performed after the first sheet forming step S11, the second sheet conveying step S21, and the adhesive applying step S31, and between the first sheet continuous body C71 and the second sheet continuous body C72. The stretchable member 73 in the stretched state is bonded via an adhesive. The expansion/contraction direction of the elastic member 73 is not limited, but may be preferably along the transport direction MD. Since the stretchable direction of the stretchable member 73 is along the transport direction MD of the first continuous sheet C71 and the second continuous sheet C72, the manufacturing process and equipment can be simplified.
　このような複合シートの製造方法によれば、第１シート連続体Ｃ７１と第２シート連続体Ｃ７２の間に伸長状態の伸縮性部材を接着しており、伸縮性部材の収縮によって第１シート連続体Ｃ７１と第２シート連続体Ｃ７２が収縮する。この伸縮性部材の収縮により、第１シートにおける接合部間の領域が厚み方向に膨らむように変形して、隣接する接合部間に第１シートからなる襞を形成できる。加えて、第２シートには、伸縮性部材の収縮によって襞が形成される。よって、当該製造方法によって得られた複合シートは、その表面に襞が形成され、クッション性が高まる。また、接合部７５が形成された第１シート連続体Ｃ７１と伸縮性部材７３を接着するため、接合部７５の形成工程に起因して伸縮性部材の伸縮性が阻害されることがない。よって、接合部及び伸縮性部材の配置の制限が少なくなり、接合部と伸縮性部材の配置の自由度を向上させることができる。意図した位置に意図した形状で襞を形成でき、所望のクッション性を有する複合シートを得ることができる。 According to such a method of manufacturing a composite sheet, the stretchable member in the stretched state is bonded between the first sheet continuum C71 and the second sheet continuum C72, and the first sheet continuum is contracted by contraction of the stretchable member. The body C71 and the second sheet continuous body C72 contract. Due to the contraction of the elastic member, the region between the joints of the first sheet is deformed so as to expand in the thickness direction, and the folds of the first sheet can be formed between the adjacent joints. In addition, a fold is formed on the second sheet due to the contraction of the elastic member. Therefore, the composite sheet obtained by the manufacturing method has folds formed on its surface, and the cushioning property is enhanced. Further, since the first sheet continuum C71 having the joint portion 75 formed thereon and the stretchable member 73 are bonded to each other, the stretchability of the stretchable member is not hindered due to the step of forming the joint portion 75. Therefore, there are less restrictions on the arrangement of the joint and the elastic member, and the degree of freedom of arrangement of the joint and the elastic member can be improved. A fold can be formed in an intended shape in an intended position, and a composite sheet having a desired cushioning property can be obtained.
　また、第１シート形成工程Ｓ１１は、搬送方向ＭＤに間隔を空けて接合部７５を形成し、伸縮性部材配置工程Ｓ４１は、搬送方向ＭＤに伸長させた伸縮性部材７３を接着してよい。第１シート連続体Ｃ７１の接合部７５を、搬送方向ＭＤに間隔を空けて設けることにより、接合部７５の有無による襞を搬送方向ＭＤに交互に形成できる。加えて、伸縮性部材７３が搬送方向ＭＤに収縮するため、第１シート連続体Ｃ７１の襞をより細かく形成できる。 Further, the first sheet forming step S11 may form the joint portions 75 at intervals in the transport direction MD, and the elastic member arranging step S41 may bond the elastic member 73 stretched in the transport direction MD. By providing the joint portions 75 of the first sheet continuum C71 at intervals in the transport direction MD, folds depending on the presence or absence of the joint portions 75 can be alternately formed in the transport direction MD. In addition, since the elastic member 73 contracts in the transport direction MD, the folds of the first sheet continuum C71 can be formed more finely.
　変形例において、第１シート形成工程Ｓ１１は、搬送方向ＭＤと直交する直交方向ＣＤに間隔を空けて配置された複数の伸縮性部材７３を跨がる領域に、直交方向ＣＤに延びる接合部７５を形成してよい。図８は、変形例に係る製造方法によって製造された複合シート７０Ｘの平面図である。変形例に係る接合部７５Ｘは、直交方向に間隔を空けて配置された伸縮性部材を跨がって設けられている。そのため、直交方向に延びる襞を複数の伸縮性部材の収縮によって形成でき、襞の精度を向上できるとともに襞の形状を維持し易くなる。 In the modified example, in the first sheet forming step S11, the joint portion 75 extending in the orthogonal direction CD is formed in a region straddling the plurality of elastic members 73 arranged at intervals in the orthogonal direction CD orthogonal to the transport direction MD. May be formed. FIG. 8 is a plan view of the composite sheet 70X manufactured by the manufacturing method according to the modification. The joint portion 75X according to the modified example is provided so as to straddle the stretchable members arranged at intervals in the orthogonal direction. Therefore, the folds extending in the orthogonal direction can be formed by contraction of the plurality of elastic members, the precision of the folds can be improved, and the shape of the folds can be easily maintained.
　第１シート形成工程Ｓ１１における接合部７５の接合手段は、特に限定されない。一実施形態として、超音波溶着又はエンボス加工によって接合部を形成してよい。超音波溶着及びエンボス加工は、積層連続体Ｃ７６を高速で搬送しつつ接合部７５を形成できる。また、接合部７５の配置の自由度が高く、設計の自由度及び襞の位置の精度を向上できる。 The joining means of the joining portion 75 in the first sheet forming step S11 is not particularly limited. In one embodiment, the joint may be formed by ultrasonic welding or embossing. The ultrasonic welding and embossing can form the joint portion 75 while conveying the laminated continuous body C76 at high speed. In addition, the degree of freedom in arranging the joint portion 75 is high, and the degree of freedom in design and the accuracy of the position of the folds can be improved.
　他の形態として、第１シート形成工程Ｓ１１は、コーター塗工によって接着剤を塗布し、接合部を形成してよい。コーター塗工は、接触塗工であり、非接触の塗工方式と比較して接着剤を面で配置できる。コーター塗工によって接着剤が塗布された領域は、接着剤によって剛性が高くなる。第１シートの剛性が高くなることにより、第１シートのたくれが抑制され、意図した襞を形成し易くなる。 As another form, in the first sheet forming step S11, an adhesive may be applied by coater coating to form a joint. The coater coating is a contact coating, and the adhesive can be arranged on the surface as compared with a non-contact coating method. The area to which the adhesive is applied by the coater coating has high rigidity due to the adhesive. By increasing the rigidity of the first sheet, the rolling of the first sheet is suppressed, and it becomes easy to form an intended fold.
　接着剤付与工程Ｓ３１は、伸縮性部材７３に接着剤を塗布してよい。第１シート連続体Ｃ７１及び第２シート連続体Ｃ７２に接着剤を塗布する形態と比較して、複合シート７０の外面に接着剤が滲み出し難く、複合シート７０の搬送経路に接着剤が付着することを抑制できる。また、当該製造方法によって得られた複合シート７０の表面に接着剤が滲み出しにくく、当該複合シート７０を有する吸収性物品１０の肌触りを向上できる。 In the adhesive applying step S31, the elastic member 73 may be applied with an adhesive. Compared with the mode in which the adhesive is applied to the first sheet continuum C71 and the second sheet continuum C72, the adhesive does not easily exude to the outer surface of the composite sheet 70, and the adhesive adheres to the transport path of the composite sheet 70 Can be suppressed. Further, the adhesive hardly leaks to the surface of the composite sheet 70 obtained by the manufacturing method, and the touch of the absorbent article 10 having the composite sheet 70 can be improved.
　伸縮性部材配置工程Ｓ４１は、厚み方向Ｔにおいて伸縮性部材７３と重ならない領域で第１シート連続体Ｃ７１と第２シート連続体Ｃ７２を当接させてよい。すなわち、第１シート連続体Ｃ７１と第２シート連続体Ｃ７２の間に、伸縮性部材７３以外のシート等を配置しない。伸縮性部材以外の部材が配置される形態と比較して、伸縮性部材７３による収縮力が伝わり易くなり、複合シート７０のクッション性をより高めることができる。 In the elastic member arranging step S41, the first sheet continuum C71 and the second sheet continuous body C72 may be brought into contact with each other in a region that does not overlap the elastic member 73 in the thickness direction T. That is, no sheet or the like other than the stretchable member 73 is arranged between the first continuous sheet C71 and the second continuous sheet C72. Compared to the configuration in which members other than the elastic member are arranged, the contracting force of the elastic member 73 is easily transmitted, and the cushioning property of the composite sheet 70 can be further enhanced.
　複合シートの製造方法は、第１シート形成工程Ｓ１１の前に、積層体形成工程Ｓ５１を有してよい。積層体形成工程Ｓ５１は、搬送方向ＭＤに連続するシートを、搬送方向ＭＤに沿った折り線を基点に折り畳み、積層連続体Ｃ７６を形成する。シートを折り畳んで積層連続体Ｃ７６を形成することにより、別体のシートを積層して積層連続体を形成する構成と比較して、部品点数を低減でき、部品の管理工数を削減できる。また、シートが折り畳まれて形成された積層連続体は、直交方向の一端が折り目であり、当該一端においては、積層されたシートの直交方向の位置ズレが生じない。よって、別体のシートを積層して積層連続体を形成する構成と比較して、積層されたシートの直交方向の位置ずれを抑制できる。加えて、積層連続体を構成するシート間の空気が抜けにくく、シート間に隙間が形成され易く、積層連続体のクッション性が向上し、当該製造方法によって得られた複合シートのクッション性を更に向上できる。 The composite sheet manufacturing method may include a laminated body forming step S51 before the first sheet forming step S11. In the laminated body forming step S51, a sheet continuous in the transport direction MD is folded around a fold line along the transport direction MD as a base point to form a continuous laminate C76. By forming the stacked continuum C76 by folding the sheets, the number of parts can be reduced and the man-hours for managing the parts can be reduced, as compared with a configuration in which separate sheets are stacked to form a stacked continuum. In addition, the laminated continuous body formed by folding the sheets has a fold line at one end in the orthogonal direction, and at the one end, the positional deviation of the laminated sheets in the orthogonal direction does not occur. Therefore, as compared with a configuration in which separate sheets are laminated to form a continuous laminated body, it is possible to suppress positional deviation of the laminated sheets in the orthogonal direction. In addition, it is difficult for air to escape between the sheets forming the laminated continuum, a gap is easily formed between the sheets, the cushioning property of the laminated continuum is improved, and the cushioning property of the composite sheet obtained by the manufacturing method is further improved. Can be improved.
　積層体形成工程Ｓ５１は、折り畳まれたシート同士が離間可能に、積層連続体Ｃ７６を形成してよい。具体的には、折り畳まれたシート間に接着剤を設けずに積層連続体Ｃ７６を形成してよい。積層連続体Ｃ７６を構成するシート間に隙間が形成され易く、積層連続体Ｃ７６のクッション性が向上し、当該製造方法によって得られた複合シートのクッション性を更に向上できる。なお、折り畳まれたシート同士が離間可能になる領域は、積層連続体の一部であってもよい。しかし、積層連続体全面のクッション性を向上させるために、積層連続体の全面に接着剤を設けないことが好ましい。接着剤の資材コストを低減できるとともに、接着剤を塗布する工程が不要となり、製造工程を簡素化できる。 In the laminated body forming step S51, the laminated continuum C76 may be formed so that the folded sheets can be separated from each other. Specifically, the laminated continuum C76 may be formed without providing an adhesive between the folded sheets. A gap is easily formed between the sheets forming the laminated continuous body C76, the cushioning property of the laminated continuous body C76 is improved, and the cushioning property of the composite sheet obtained by the manufacturing method can be further improved. The region where the folded sheets can be separated from each other may be a part of the continuous laminate. However, in order to improve the cushioning property of the entire surface of the continuous laminated body, it is preferable not to provide an adhesive on the entire surface of the continuous continuous body. The material cost of the adhesive can be reduced, and the step of applying the adhesive is not required, so that the manufacturing process can be simplified.
　また、変形例において、積層体形成工程Ｓ５１は、接着剤を介して折り畳まれたシート同士を接合してもよい。変形例においては、第１シート連続体Ｃ７１と第２シート連続体Ｃ７２の間に設けられる接着剤の坪量よりも低い坪量の接着剤を介して積層連続体を構成するシート同士を接合してよい。積層連続体Ｃ７６を構成するシート間に隙間が形成され易く、積層連続体Ｃ７６のクッション性が向上し、当該製造方法によって得られた複合シートのクッション性を更に向上できる。また、接着剤の資材コストを低減でき、製造工程を簡素化できる。 Further, in a modified example, in the laminated body forming step S51, the folded sheets may be joined together via an adhesive. In the modified example, the sheets forming the laminated continuum are joined together via an adhesive having a grammage lower than that of the adhesive provided between the first sheet continuum C71 and the second sheet continuum C72. You can A gap is easily formed between the sheets that form the laminated continuum C76, the cushioning properties of the laminated continuum C76 are improved, and the cushioning properties of the composite sheet obtained by the manufacturing method can be further improved. Further, the material cost of the adhesive can be reduced, and the manufacturing process can be simplified.
　伸縮性部材配置工程Ｓ４１は、糸状又は帯状の伸縮性部材７３を、直交方向ＣＤに間隔を空けて配置してよい。接合部７５の形成工程に起因して伸縮性部材７３の伸縮性が阻害されることがなく、伸縮性部材７３の配置の自由度を高めることができる。伸縮性部材の配置の自由度を向上させることにより、意図した位置に意図した形状で襞を形成でき、所望のクッション性を有する複合シートを得ることができる。 In the elastic member arranging step S41, the thread-shaped or strip-shaped elastic members 73 may be arranged at intervals in the orthogonal direction CD. The stretchability of the stretchable member 73 is not hindered due to the step of forming the joint portion 75, and the degree of freedom in disposing the stretchable member 73 can be increased. By increasing the degree of freedom of arrangement of the elastic member, it is possible to form a fold in an intended shape at an intended position and obtain a composite sheet having a desired cushioning property.
　（６）吸収性物品の製造方法
　次いで、上述の複合シート７０を備える吸収性物品１０の製造方法について説明する。なお、以下にて説明する工程以外については、従来の吸収性物品の製造方法の工程を用いることができる。吸収性物品の製造方法は、複合シート７０の製造方法によって得られる複合シート７０を用いてウエストベルトを形成するベルト形成工程を備える。高いクッション性を有する複合シートを有するウエストベルトを備えることにより、腰周りに対する肌触りを向上できる。 (6) Manufacturing Method of Absorbent Article Next, a manufacturing method of the absorbent article 10 including the composite sheet 70 will be described. In addition, the process of the manufacturing method of the conventional absorbent article can be used except the process demonstrated below. The method of manufacturing the absorbent article includes a belt forming step of forming a waist belt using the composite sheet 70 obtained by the method of manufacturing the composite sheet 70. By providing the waist belt having the composite sheet having high cushioning properties, the feel of the waist can be improved.
　本実施の形態の後ウエストベルト３０のベルト形成工程は、複合シートの製造方法によって得られる複合シートにおいて、第２折り目ＦＬ７２を基点に第２シート７２を折り返して、後第３外装シート３９を形成し、かつ吸収性本体４０を挟んで後カバーシート３７を配置する。ベルト形成工程は、複合シートの第１シート連続体Ｃ７１側を吸収性物品の肌面側に配置して、ウエストベルト１５を形成してよい。肌に触れる面側のクッション性を向上でき、着用者の肌触りを向上できる。より好適には、複合シート７０の第１シート７１が、吸収性物品において最も肌側に位置する面に位置するように、ウエストベルト１５を形成してよい。このような構成によれば、着用者の肌触りを向上できる。 In the belt forming step of the rear waist belt 30 of the present embodiment, in the composite sheet obtained by the method for manufacturing the composite sheet, the second sheet 72 is folded back with the second fold FL72 as a base point to form the rear third exterior sheet 39. Then, the rear cover sheet 37 is arranged with the absorbent main body 40 interposed therebetween. In the belt forming step, the first belt continuum C71 side of the composite sheet may be arranged on the skin surface side of the absorbent article to form the waist belt 15. The cushioning property of the side that comes into contact with the skin can be improved, and the feel of the wearer can be improved. More preferably, the waist belt 15 may be formed so that the first sheet 71 of the composite sheet 70 is located on the most skin-side surface of the absorbent article. With such a configuration, the feel of the wearer can be improved.
　変形例において、ベルト形成工程は、複合シート７０の第２シート連続体Ｃ７２側を吸収性物品の肌面側に配置して、ウエストベルト１５を形成してよい。吸収性物品１０を外側から触れた際の肌触りを向上でき、装着補助者が外側から触れた際の安心感を高めることができる。変形例においてより好適には、複合シート７０の第１シート７１が、吸収性物品において最も非肌側に位置する面に位置するように、ウエストベルト１５を形成してよい。このような構成によれば、吸収性物品を外側から触れた際の肌触りをより向上できる。 In a modification, in the belt forming step, the waist belt 15 may be formed by arranging the second sheet continuum C72 side of the composite sheet 70 on the skin side of the absorbent article. It is possible to improve the touch when the absorbent article 10 is touched from the outside, and it is possible to enhance the sense of security when the wearer touches the absorbent article 10 from the outside. More preferably in the modified example, the waist belt 15 may be formed so that the first sheet 71 of the composite sheet 70 is located on the most non-skin side surface of the absorbent article. With such a configuration, the touch of the absorbent article when touched from the outside can be further improved.
　吸収性物品の製造方法は、吸収性本体形成工程と、ベルト接合工程と、を有してよい。吸収性本体形成工程は、収材料を有する吸収コアと、吸収コアの肌面側に配置される肌面側シートと、吸収コアの非肌面側に配置される非肌面側シートと、を積層して吸収性本体を形成する。ベルト接合工程は、吸収性本体形成工程によって得られる吸収性本体と、ベルト形成工程によって得られるウエストベルトと、を接合する。ウエストベルト１５と吸収性本体４０を別々に製造することにより、それぞれを意図した仕様で安定して製造できる。高いクッション性を有する複合シート７０を有するウエストベルト１５を備えることにより、肌触りの優れた吸収性物品を得ることができる。 The method for manufacturing an absorbent article may include an absorbent main body forming step and a belt joining step. The absorbent main body forming step includes an absorbent core having a scavenging material, a skin side sheet arranged on the skin side of the absorption core, and a non-skin side sheet arranged on the non-skin side of the absorption core. Laminate to form the absorbent body. The belt joining step joins the absorbent main body obtained by the absorbent main body forming step and the waist belt obtained by the belt forming step. By separately manufacturing the waist belt 15 and the absorbent main body 40, the waist belt 15 and the absorbent main body 40 can be stably manufactured with intended specifications. By providing the waist belt 15 having the composite sheet 70 having high cushioning properties, it is possible to obtain an absorbent article having excellent touch.
　以上、上述の実施形態を用いて本発明について詳細に説明したが、当業者にとっては、本発明が本明細書中に説明した実施形態に限定されるものではないということは明らかである。本発明は、特許請求の範囲の記載により定まる本発明の趣旨及び範囲を逸脱することなく修正及び変更態様として実施することができる。したがって、本明細書の記載は、例示説明を目的とするものであり、本発明に対して何ら制限的な意味を有するものではない。 Although the present invention has been described in detail using the above-described embodiments, it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the claims. Therefore, the description of the present specification is for the purpose of exemplifying explanation, and does not have any restrictive meaning to the present invention.
　なお、２０１８年１２月２８日に出願された日本国特許出願第２０１８－２４８０７１号の全内容が、参照により、本明細書に組み込まれる。 Note that the entire contents of Japanese Patent Application No. 2018-248071 filed on December 28, 2018 are incorporated herein by reference.
　複合シートにおける接合部と伸縮性部材の配置の自由度を向上させ、高いクッション性を有する複合シート及び吸収性物品を得ることができる。 It is possible to obtain a composite sheet and an absorbent article having a high cushioning property by improving the degree of freedom in arranging the joint portion and the elastic member in the composite sheet.
１０：吸収性物品、２０：前ウエストベルト、２２：前側糸ゴム、２５：前第１外装シート（第１シート）、２６：前第２外装シート（第２シート）、２７：前カバーシート（第１シート）、２８：外装伸縮シート（伸縮性部材）、３０：後ウエストベルト、３５：後第１外装シート（第１シート）、３６：後第２外装シート（第２シート）、３７：後カバーシート、３８：後側糸ゴム（伸縮性部材）、３９：後第３外装シート、４０：吸収性本体、４０Ｒ：後端縁、４１：液不透過シート、４２Ａ：肌面シート、４２Ｂ：本体シート、５０：吸収コア、６０：サイド接合部、７０：複合シート、７１：第１シート、７１Ｒ：後端縁、７２：第２シート、７２Ｒ：後端縁、７３：伸縮性部材、７５：接合部、７７：当接領域、Ｃ７１：第１シート連続体、Ｃ７２：第２シート連続体、Ｃ７６：積層連続体、Ｄ１：第１方向、Ｄ２：第２方向、ＦＬ７１：第１折り目、ＦＬ７２：第２折り目、Ｓ１：前胴回り域、Ｓ２：後胴回り域、Ｓ３：股下域、Ｓ１００：複合シートの製造方法、Ｓ１１：第１シート形成工程、Ｓ２１：第２シート搬送工程、Ｓ３１：接着剤付与工程、Ｓ４１：伸縮性部材配置工程、Ｌ：前後方向、Ｔ：厚み方向、Ｔ１：肌面側、Ｔ２：非肌面側、Ｗ：幅方向 10: Absorbent article, 20: Front waist belt, 22: Front thread rubber, 25: Front first exterior sheet (first sheet), 26: Front second exterior sheet (second sheet), 27: Front cover sheet ( 1st sheet), 28: Exterior stretchable sheet (stretchable member), 30: Rear waist belt, 35: Rear first exterior sheet (first sheet), 36: Rear second exterior sheet (second sheet), 37: Rear cover sheet, 38: Rear thread rubber (stretchable member), 39: Rear third exterior sheet, 40: Absorbent body, 40R: Rear edge, 41: Liquid impermeable sheet, 42A: Skin sheet, 42B : Main body sheet, 50: absorbent core, 60: side joint portion, 70: composite sheet, 71: first sheet, 71R: rear edge, 72: second sheet, 72R: rear edge, 73: elastic member, 75: joining part, 77: contact area, C71: first sheet continuous body, C72: second sheet continuous body, C76: laminated continuous body, D1: first direction, D2: second direction, FL71: first fold line , FL72: second fold, S1: front waist region, S2: rear waist region, S3: crotch region, S100: composite sheet manufacturing method, S11: first sheet forming step, S21: second sheet conveying step, S31: Adhesive applying step, S41: Stretchable member arranging step, L: longitudinal direction, T: thickness direction, T1: skin surface side, T2: non-skin surface side, W: width direction

Claims (26)

  1. 　搬送方向に連続するシートが積層された積層連続体を用いて第１シート連続体を形成する第１シート形成工程と、
    　前記搬送方向に連続する第２シート連続体を搬送する第２シート搬送工程と、
    　前記第１シート連続体と前記第２シート連続体の間に設けられる伸縮性部材を接着するための接着剤を、前記第１シート連続体、前記第２シート連続体及び前記伸縮性部材の少なくともいずれかに付与する接着剤付与工程と、
    　前記第１シート連続体と前記第２シート連続体の間に、前記接着剤を介して伸長状態の前記伸縮性部材を接着する伸縮性部材配置工程と、を有し、
    　前記第１シート形成工程は、平面視にて間隔を空けて複数の接合部を前記積層連続体に形成する、複合シートの製造方法。     A first sheet forming step of forming a first continuous sheet body by using a continuous laminated body in which continuous sheets are stacked in the transport direction;
    A second sheet carrying step of carrying a second continuous sheet body continuous in the carrying direction;
    At least one of the first sheet continuum, the second sheet continuum, and the elastic member is provided with an adhesive for adhering the elastic member provided between the first sheet continuum and the second sheet continuum. An adhesive applying step of applying to either
    A stretchable member disposing step of bonding the stretchable member in the stretched state via the adhesive between the first sheet continuum and the second sheet continuum,
    The first sheet forming step is a method for manufacturing a composite sheet, in which a plurality of joint portions are formed in the laminated continuous body at intervals in a plan view.
  2. 　前記第１シート形成工程は、前記搬送方向に間隔を空けて前記接合部を形成し、
    　前記伸縮性部材配置工程は、前記搬送方向に伸長させた前記伸縮性部材を接着する、請求項１に記載の複合シートの製造方法。     In the first sheet forming step, the joint portions are formed at intervals in the transport direction,
    The method for manufacturing a composite sheet according to claim 1, wherein in the elastic member arranging step, the elastic member stretched in the transport direction is bonded.
  3. 　前記第１シート形成工程は、前記搬送方向と直交する直交方向に間隔を空けて配置された複数の伸縮性部材を跨がる領域に、前記直交方向に延びる接合部を形成する、請求項１に記載の複合シートの製造方法。 The first sheet forming step forms a joint portion extending in the orthogonal direction in a region straddling a plurality of elastic members arranged at intervals in the orthogonal direction orthogonal to the transport direction. A method for manufacturing the composite sheet according to.
  4. 　前記第１シート形成工程は、超音波溶着又はエンボス加工によって前記接合部を形成する、請求項１から請求項３のいずれか１項に記載の複合シートの製造方法。 The method for manufacturing a composite sheet according to any one of claims 1 to 3, wherein in the first sheet forming step, the joint portion is formed by ultrasonic welding or embossing.
  5. 　前記第１シート形成工程は、コーター塗工によって接着剤を塗布し、前記接合部を形成する、請求項１から請求項３のいずれか１項に記載の複合シートの製造方法。 The method for producing a composite sheet according to any one of claims 1 to 3, wherein in the first sheet forming step, an adhesive is applied by coater coating to form the joint portion.
  6. 　前記接着剤付与工程は、前記伸縮性部材に前記接着剤を塗布する、請求項１から請求項５のいずれか１項に記載の複合シートの製造方法。 The method for manufacturing a composite sheet according to any one of claims 1 to 5, wherein the adhesive applying step applies the adhesive to the elastic member.
  7. 　前記伸縮性部材配置工程は、厚み方向において前記伸縮性部材と重ならない領域で前記第１シート連続体と前記第２シート連続体を当接させる、請求項１から請求項６のいずれか１項に記載の複合シートの製造方法。 7. The elastic member arranging step brings the first continuous sheet body and the second continuous sheet body into contact with each other in a region that does not overlap with the elastic member in the thickness direction, any one of claims 1 to 6. A method for manufacturing the composite sheet according to.
  8. 　前記搬送方向に連続するシートを、前記搬送方向に沿った折り線を基点に折り畳み、積層連続体を形成する積層体形成工程を有し、
    　前記第１シート形成工程は、前記積層体形成工程の後に行われる、請求項１から請求項７のいずれか１項に記載の複合シートの製造方法。     A stack forming step of forming a continuous stack by folding a sheet continuous in the carrying direction with a folding line along the carrying direction as a base point;
    The method for manufacturing a composite sheet according to claim 1, wherein the first sheet forming step is performed after the laminated body forming step.
  9. 　前記積層体形成工程は、前記折り畳まれたシート同士が離間可能に、前記積層連続体を形成する、請求項８に記載の複合シートの製造方法。 The method for manufacturing a composite sheet according to claim 8, wherein, in the laminated body forming step, the laminated continuous body is formed so that the folded sheets can be separated from each other.
  10. 　前記積層体形成工程は、前記第１シート連続体と前記第２シート連続体の間に設けられる接着剤の坪量よりも低い坪量の接着剤を介して前記積層連続体を構成するシート同士を接合する、請求項８に記載の複合シートの製造方法。 The said laminated body formation process WHEREIN: The sheets which comprise the said continuous layered body through the adhesive of the basis weight lower than the basic weight of the adhesive agent provided between the said 1st sheet continuous body and the said 2nd sheet continuous body. The method for manufacturing a composite sheet according to claim 8, wherein
  11. 　前記伸縮性部材配置工程は、糸状又は帯状の前記伸縮性部材を、前記搬送方向と直交する直交方向に間隔を空けて配置する、請求項１から請求項１０のいずれか１項に記載の複合シートの製造方法。 The composite according to any one of claims 1 to 10, wherein in the elastic member arranging step, the thread-shaped or band-shaped elastic members are arranged at intervals in a direction orthogonal to the transport direction. Sheet manufacturing method.
  12. 　前胴回り域、股下域及び後胴回り域を有する吸収性物品の製造方法であって、
    　請求項１から請求項１１のいずれか１項に記載の複合シートの製造方法によって得られる複合シートを用いて、前記前胴回り域及び前記後胴回り域の少なくともいずれか一方に配置されるウエストベルトを形成するベルト形成工程を有する、吸収性物品の製造方法。     A method of manufacturing an absorbent article having a front waist region, a crotch region and a rear waist region,
    A waist belt arranged in at least one of the front waistline region and the rear waistline region using the composite sheet obtained by the method for producing a composite sheet according to claim 1. A method for manufacturing an absorbent article, comprising a belt forming step of forming.
  13. 　前記ベルト形成工程は、前記複合シートの前記第１シート連続体側を前記吸収性物品の肌面側に配置して、前記ウエストベルトを形成する、請求項１２に記載の吸収性物品の製造方法。 The method for manufacturing an absorbent article according to claim 12, wherein in the belt forming step, the waist belt is formed by arranging the first sheet continuum side of the composite sheet on the skin surface side of the absorbent article.
  14. 　前記ベルト形成工程は、前記複合シートの前記第２シート連続体側を前記吸収性物品の肌面側に配置して、前記ウエストベルトを形成する、請求項１２に記載の吸収性物品の製造方法。 The method for manufacturing an absorbent article according to claim 12, wherein in the belt forming step, the waist belt is formed by arranging the second sheet continuum side of the composite sheet on the skin surface side of the absorbent article.
  15. 　吸収材料を有する吸収コアと、前記吸収コアの肌面側に配置される肌面側シートと、前記吸収コアの非肌面側に配置される非肌面側シートと、を積層して吸収性本体を形成する吸収性本体形成工程と、
    　前記吸収性本体形成工程によって得られる前記吸収性本体と、前記ベルト形成工程によって得られるウエストベルトと、を接合するベルト接合工程と、を有する、請求項１２から請求項１４のいずれか１項に記載の吸収性物品の製造方法。     Absorbency by stacking an absorbent core having an absorbent material, a skin side sheet arranged on the skin side of the absorption core, and a non-skin side sheet arranged on the non-skin side of the absorption core An absorbent main body forming step of forming a main body;
    15. The belt joining step of joining the absorbent main body obtained by the absorbent main body forming step and the waist belt obtained by the belt forming step, to any one of claims 12 to 14. A method for producing the absorbent article described.
  16. 　２層以上のシートが積層された積層体を有する第１シートと、
    　前記第１シートと重ねて配置された第２シートと、
    　前記第１シートと前記第２シートの間において前記第１シートと前記第２シートに接合され、かつ第１方向に伸縮する伸縮性部材と、を有する複合シートであって、
    　前記積層体を構成するシートを接合する接合部が前記第２シートに到達しないように前記第１シート内に設けられており、
    　前記接合部は、平面視にて間隔を空けて複数設けられている、複合シート。     A first sheet having a laminate in which two or more sheets are laminated;
    A second sheet overlaid on the first sheet;
    A composite sheet, comprising: a stretchable member that is joined to the first sheet and the second sheet between the first sheet and the second sheet, and that expands and contracts in a first direction,
    A joining portion for joining the sheets forming the laminate is provided in the first sheet so as not to reach the second sheet,
    The said composite part is a composite sheet provided in multiple numbers at intervals in planar view.
  17. 　前記伸縮性部材は、前記第１方向と直交する第２方向に間隔を空けて複数設けられており、
    　前記接合部は、前記複数の伸縮性部材を跨がって配置されている、請求項１６に記載の複合シート。     A plurality of the elastic members are provided at intervals in a second direction orthogonal to the first direction,
    The composite sheet according to claim 16, wherein the joint portion is arranged so as to straddle the plurality of elastic members.
  18. 　前記第１シートと前記第２シートが当接する当接領域を有する、請求項１６又は請求項１７に記載の複合シート。 The composite sheet according to claim 16 or 17, which has a contact area where the first sheet and the second sheet come into contact with each other.
  19. 　前記積層体の端縁には、前記積層体を構成するシートを折り畳んだ折り目が設けられている、請求項１６から請求項１８のいずれか１項に記載の複合シート。 The composite sheet according to any one of claims 16 to 18, wherein a fold line obtained by folding a sheet forming the laminate is provided at an edge of the laminate.
  20. 　前記積層体を構成するシート同士は、接着剤を介して接合されており、
    　前記伸縮性部材は、前記第１シートと前記第２シートの間に接着剤を介して接合されており、
    　前記積層体を接合する前記接着剤の坪量は、前記第１シートと前記第２シートを接合する接着剤の坪量よりも低い、請求項１６から請求項１９のいずれか１項に記載の複合シート。     The sheets forming the laminate are joined together via an adhesive,
    The elastic member is bonded between the first sheet and the second sheet via an adhesive,
    20. The basis weight of the adhesive that bonds the laminate is lower than the basis weight of the adhesive that bonds the first sheet and the second sheet. Composite sheet.
  21. 　前記伸縮性部材は、前記第１方向と直交する第２方向に間隔を空けて複数設けられており、
    　前記接合部は、前記第２方向に間隔を空けて複数設けられており、
    　前記第２方向における前記接合部のピッチは、前記第２方向における前記伸縮性部材のピッチよりも短い、請求項１６から請求項２０のいずれか１項に記載の複合シート。     A plurality of the elastic members are provided at intervals in a second direction orthogonal to the first direction,
    A plurality of the joint portions are provided at intervals in the second direction,
    The composite sheet according to any one of claims 16 to 20, wherein a pitch of the joint portion in the second direction is shorter than a pitch of the stretchable member in the second direction.
  22. 　前後方向及び前記前後方向に直交する幅方向と、
    　前胴回り域と、
    　後胴回り域と、
    　前記前胴回り域と前記後胴回り域との間に配置された股下域と、
    　前記股下域、前記前胴回り域及び前記後胴回り域に跨がって配置された吸収性本体と、
    　前記前胴回り域及び前記後胴回り域の少なくともいずれか一方において前記吸収性本体と厚み方向に重なるウエストベルトと、を有する吸収性物品であって、
    　前記ウエストベルトは、請求項１６から請求項２１のいずれか１項の記載の複合シートを有する、吸収性物品。     A longitudinal direction and a width direction orthogonal to the longitudinal direction,
    Front waist area,
    Rear waist area,
    A crotch region arranged between the front waist region and the rear waist region,
    An absorptive main body arranged across the crotch region, the front waist region and the rear waist region,
    An absorbent article having a waist belt overlapping the absorbent body in the thickness direction in at least one of the front waist region and the back waist region,
    An absorbent article, wherein the waist belt has the composite sheet according to any one of claims 16 to 21.
  23. 　前記複合シートの前記第１シートは、前記第２シートよりも肌面側に位置する、請求項２２に記載の吸収性物品。 23. The absorbent article according to claim 22, wherein the first sheet of the composite sheet is located closer to the skin surface than the second sheet.
  24. 　前記第１シート及び前記第２シートは、繊維を有する不織布又は織布によって構成されており、
    　前記第１シートの繊維の坪量は、前記第２シートの繊維の坪量よりも高い、請求項２２又は請求項２３に記載の吸収性物品。     The first sheet and the second sheet are made of non-woven fabric or woven fabric having fibers,
    The absorbent article according to claim 22 or 23, wherein the basis weight of the fibers of the first sheet is higher than the basis weight of the fibers of the second sheet.
  25. 　前記第１シートの前後方向の外端縁には、前記積層体を構成するシートが折り畳まれた第１折り目が前記幅方向に沿って設けられており、
    　前記第１折り目は、前記吸収性本体の前記前後方向の外端縁よりも前記前後方向の外側に配置されている、請求項２２から請求項２４のいずれか１項に記載の吸収性物品。     At the outer edge of the first sheet in the front-rear direction, a first fold formed by folding the sheets forming the laminated body is provided along the width direction,
    The absorbent article according to any one of claims 22 to 24, wherein the first fold is arranged outside the front-rear outer edge of the absorbent main body in the front-rear direction.
  26. 　前記第２シートの前後方向の外端縁には、前記第２シートが折り畳まれた第２折り目が前記幅方向に沿って設けられており、
    　前記第２折り目は、前記吸収性本体の前記前後方向の外側縁よりも前記前後方向の外側に配置されており、
    　前記第２折り目を介して折り畳まれた第２シート間に、前記第１シートの前記第１折り目が配置されている、請求項２５に記載の吸収性物品。     On the outer edge of the second sheet in the front-rear direction, a second fold formed by folding the second sheet is provided along the width direction,
    The second fold is arranged outside the front-rear outer edge of the absorbent main body in the front-rear direction,
    The absorbent article according to claim 25, wherein the first fold of the first sheet is arranged between the second sheets folded through the second fold.
PCT/JP2019/050561 2018-12-28 2019-12-24 Method for producing composite sheet, method for producing absorbent article, composite sheet, and absorbent article WO2020138057A1 (en)

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Citations (3)

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WO2018097772A1 (en) * 2016-11-23 2018-05-31 Essity Hygiene And Health Aktiebolag Array of gender-specific absorbent articles
JP2018114131A (en) * 2017-01-19 2018-07-26 王子ホールディングス株式会社 Disposable diaper

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JP5896187B1 (en) * 2014-08-20 2016-03-30 王子ホールディングス株式会社 Disposable diapers and cushion sheets
JP6353024B2 (en) * 2016-12-22 2018-07-04 花王株式会社 Disposable diapers

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JP2015198915A (en) * 2014-03-31 2015-11-12 大王製紙株式会社 Method for manufacturing telescopic structure of absorbent article, method for manufacturing underpants-type disposable diaper, and underpants-type disposable diaper
WO2018097772A1 (en) * 2016-11-23 2018-05-31 Essity Hygiene And Health Aktiebolag Array of gender-specific absorbent articles
JP2018114131A (en) * 2017-01-19 2018-07-26 王子ホールディングス株式会社 Disposable diaper

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