TWI694813B - Manufacturing method and manufacturing device of composite sheet related to absorbent articles - Google Patents

Manufacturing method and manufacturing device of composite sheet related to absorbent articles Download PDF

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TWI694813B
TWI694813B TW104111626A TW104111626A TWI694813B TW I694813 B TWI694813 B TW I694813B TW 104111626 A TW104111626 A TW 104111626A TW 104111626 A TW104111626 A TW 104111626A TW I694813 B TWI694813 B TW I694813B
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sheet
low
elongation
manufacturing
roller
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TW104111626A
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Chinese (zh)
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TW201609060A (en
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山本広喜
松本美彥
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日商優你 嬌美股份有限公司
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)

Abstract

本發明的複合薄片的製造方法為具有:吸收性物品相關的伸縮性薄片,及伸長性比上述伸縮性薄片低的低伸長性薄片的複合薄片的製造方法。該方法具有:準備使得朝預定方向延伸的第1部份與較第1部份不延伸的第2部份在上述預定方向交互排列所形成的低伸長性薄片的步驟,及以在上述伸縮性薄片朝著伸縮方向伸長的狀態,使上述伸縮方向在上述預定方向一致並對上述低伸長性薄片透過複數接合部固定上述伸縮性薄片的步驟。上述固定步驟是將上述複數接合部朝著上述伸縮方向及與上述伸縮方向交叉的方向的兩方向呈非連續分散地設置,並設置上述接合部,使得在上述複數接合部之中位在與上述伸縮方向相鄰的接合部彼此之間的非接合部,分別至少包含有各一個上述第1部份的上述預定方向的中央位置與上述第2部份的上述預定方向的中央位置。 The method of manufacturing a composite sheet of the present invention is a method of manufacturing a composite sheet having an elastic sheet related to an absorbent article and a low-elongation sheet having a lower extensibility than the above-mentioned elastic sheet. The method includes the steps of preparing a low-elongation sheet formed by alternately arranging a first portion extending in a predetermined direction and a second portion not extending from the first portion in the predetermined direction, and In a state where the sheet is stretched in the stretch direction, the stretch direction is aligned in the predetermined direction, and the low stretch sheet is fixed to the stretch sheet through a plurality of joints. The fixing step is to disperse the plurality of joints discontinuously in both directions of the telescopic direction and the direction intersecting the telescopic direction, and provide the joints so that The non-joint portions between the joint portions adjacent to each other in the expansion and contraction direction respectively include at least one central position of the first portion in the predetermined direction and a central position of the second portion in the predetermined direction.

Description

吸收性物品相關之複合薄片的製造方法及製造裝置 Manufacturing method and manufacturing device of composite sheet related to absorbent articles

本發明是關於用後即棄式紙尿片等的吸收性物品相關之複合薄片的製造方法及製造裝置。 The present invention relates to a method and apparatus for manufacturing composite sheets related to absorbent articles such as disposable diapers.

作為吸收性物品之一例的用後即棄式紙尿片的製造生產線是進行將低伸長性薄片重疊並固定在以預定伸長倍率的伸長狀態朝著搬運方向搬運的伸縮性薄片來生成複合薄片。並且,相關的複合薄片是通常一邊維持著上述的伸長狀態並朝著下步驟搬運,該下步驟是對相關伸長狀態的複合薄片,依序進行安裝吸收液體之吸收性主體等的適當加工處理,最後裁斷成為製品的紙尿片的單位來製造同紙尿片。 A production line for disposable diapers as an example of an absorbent article is to produce a composite sheet by stacking and fixing low-elongation sheets to a stretchable sheet that is conveyed in the conveying direction in an extended state at a predetermined rate of expansion. In addition, the related composite sheet is usually transported toward the next step while maintaining the above-mentioned extended state, and this next step is to sequentially perform appropriate processing on the related extended sheet in order to mount an absorbent body that absorbs liquid, etc., Finally, the unit of the paper diaper that becomes the product is cut to manufacture the same paper diaper.

在此,伴隨著相關的裁斷處理,解除複合薄片的伸長朝著搬運方向收縮時,在以該複合薄片為主材的紙尿片的外包裝部份,賦予沿著與搬運方向交叉之方向的複數皺摺。並且,藉此所製造的紙尿片至少可將該皺摺收縮至完全伸展地伸長的形態提供至市場。其結果,著用人等的使用者可使用具伸展收縮規格的紙尿片。 Here, when the extension of the composite sheet is released and contracted in the conveying direction along with the related cutting process, the outer portion of the diaper that uses the composite sheet as the main material is given along the direction crossing the conveying direction. Plural folds. In addition, the diaper manufactured by this method can provide the market with at least the form in which the wrinkle is contracted to be fully extended. As a result, a user such as a user can make the tool expand and contract a paper diaper of a specification.

[先前專利文獻] [Previous Patent Literature] [專利文獻] [Patent Literature]

[專利文獻1]日本特開2007-105453號公報 [Patent Document 1] Japanese Patent Laid-Open No. 2007-105453

在此,相關的皺摺是形成在眼睛可看見的部份。因此,只要賦予美觀的該皺褶,即可以使紙尿片美觀而提升購買人的吸引力。 Here, the relevant wrinkles are formed in the visible part of the eye. Therefore, as long as the wrinkle is given a beautiful appearance, the diaper can be made beautiful and the attractiveness of the purchaser can be enhanced.

本發明是鑒於如上述習知的問題所研創而成,其目的是對吸收性物品相關的複合薄片形成美觀的皺摺。 The present invention was developed in view of the above-mentioned conventional problems, and its purpose is to form beautiful wrinkles on composite sheets related to absorbent articles.

為達成上述目的之主要發明的吸收性物品相關之複合薄片的製造方法,具有:吸收性物品相關的伸縮性薄片,及伸長性比上述伸縮性薄片低的低伸長性薄片的複合薄片的製造方法,其特徵為:該方法具有:準備使得朝預定方向延伸的第1部份與較第1部份不延伸的第2部份在上述預定方向交互排列所形成的上述低伸長性薄片的步驟,及以在上述伸縮性薄片朝著伸縮方向伸長的狀態,使上 述伸縮方向在上述預定方向一致並對上述低伸長性薄片透過複數接合部固定上述伸縮性薄片的步驟,上述固定步驟是將上述複數接合部朝著上述伸縮方向及與上述伸縮方向交叉的方向的兩方向呈非連續分散地設置,並設置上述接合部,使得在上述複數接合部之中位在與上述伸縮方向相鄰的接合部彼此之間的非接合部,分別至少包含有各一個上述第1部份的上述預定方向的中央位置與上述第2部份的上述預定方向的中央位置。 A method of manufacturing a composite sheet related to an absorbent article of the main invention for achieving the above object includes a method of manufacturing a composite sheet having an elastic sheet related to an absorbent article and a low-elongation sheet having a lower extensibility than the above-mentioned elastic sheet The method is characterized in that the method has the steps of preparing the low-elongation sheet formed by alternately arranging the first portion extending in a predetermined direction and the second portion not extending than the first portion in the predetermined direction, And in a state where the above-mentioned stretchable sheet is stretched in the stretching direction, the upper The stretching direction coincides with the predetermined direction and the step of fixing the stretchable sheet through the plurality of joints of the low-elongation sheet, the fixing step is to move the plurality of joints toward the stretching direction and a direction crossing the stretching direction The two directions are arranged discontinuously dispersed, and the joint portions are provided so that the non-joint portions between the joint portions adjacent to the telescopic direction among the plurality of joint portions each include at least one of the first The central position of the part 1 in the predetermined direction and the central position of the second part in the predetermined direction.

並且,複合薄片的製造裝置,具有:吸收性物品相關的伸縮性薄片,及伸長性比上述伸縮性薄片低的低伸長性薄片的複合薄片的製造裝置,其特徵為,具有:準備使得朝預定方向延伸的第1部份與較第1部份不延伸的第2部份在上述預定方向交互排列所形成的上述低伸長性薄片的裝置,及以在上述伸縮性薄片朝著伸縮方向伸長的狀態,使上述伸縮方向在上述預定方向一致並對上述低伸長性薄片透過複數接合部固定上述伸縮性薄片的裝置,上述固定裝置是將上述複數接合部朝著上述伸縮方向及與上述伸縮方向交叉的方向的兩方向呈非連續分散地設置,並設置上述接合部,使得在上述複數接合部之中位在與上述伸縮方向相鄰的接合部彼此之間的非接合部,分別至少包含有各一個上述第1部份的上述預定方向的中央位置與上述第2部份的上述預定方向的中央位置。 Furthermore, a manufacturing device of a composite sheet includes an elastic sheet related to an absorbent article, and a manufacturing device of a composite sheet of a low-elongation sheet having a lower extensibility than the above-mentioned elastic sheet, characterized by having: The first portion extending in the direction and the second portion not extending than the first portion are arranged alternately in the predetermined direction to form the low-elongation sheet, and the stretchable sheet extends in the stretching direction In the state, the stretching direction is aligned with the predetermined direction, and the low-elongation sheet is fixed to the stretchable sheet through a plurality of joints, and the fixing device is to move the plurality of joints in the stretching direction and cross the stretching direction The two directions of the direction are discontinuously dispersed, and the joint portions are provided so that the non-joint portions between the joint portions adjacent to the telescopic direction among the plurality of joint portions each include at least each A central position in the predetermined direction of the first part and a central position in the predetermined direction of the second part.

對於本發明的其他特徵根據本說明書及添附圖式的記 載可得以明確。 Other features of the present invention are based on the description of this specification and attached drawings It can be made clear.

根據本發明,在吸收性物品相關的複合薄片可形成美觀的皺摺。 According to the present invention, the composite sheet related to the absorbent article can form an aesthetic wrinkle.

1‧‧‧用後即棄式紙尿片(吸收性物品) 1‧‧‧ disposable diapers (absorbent articles)

3‧‧‧吸收性主體 3‧‧‧ Absorbent subject

3e‧‧‧端部 3e‧‧‧End

3a‧‧‧吸收性主體的連續體 3a‧‧‧Continuous body of absorptive subject

3c‧‧‧吸收性芯子 3c‧‧‧absorbent core

4‧‧‧上層薄片 4‧‧‧ Upper slice

4eL‧‧‧突出的部份 4eL‧‧‧ Highlighted part

5‧‧‧防漏薄片 5‧‧‧Leakproof sheet

5eL‧‧‧突出的部份 5eL‧‧‧ Highlighted part

5eW‧‧‧突出的部份 5eW‧‧‧ Highlighted parts

7‧‧‧外包裝薄片 7‧‧‧Outer packaging sheet

7HL‧‧‧腳周圍開口部 7HL‧‧‧Opening around the foot

7f‧‧‧腹側部 7f‧‧‧ ventral

7b‧‧‧背側部 7b‧‧‧Back side

7c‧‧‧***部 7c‧‧‧Lower crotch

7eW‧‧‧端部 7eW‧‧‧End

7a‧‧‧外包裝薄片的連續薄片(複合薄片、外包裝薄片、基材薄片) 7a‧‧‧Continuous sheet of outer packaging sheet (composite sheet, outer packaging sheet, substrate sheet)

8‧‧‧內層薄片(伸縮性薄片) 8‧‧‧Inner sheet (stretchable sheet)

8a‧‧‧伸縮性薄片的連續薄片(伸縮性薄片) 8a‧‧‧Continuous sheet of stretchable sheet (stretchable sheet)

8a’‧‧‧伸縮性薄片的連續薄片(伸縮性薄片) 8a’‧‧‧Continuous sheet of stretchable sheet (stretchable sheet)

9‧‧‧外層薄片(低伸長性薄片) 9‧‧‧Outer sheet (low elongation sheet)

9a‧‧‧低伸長性薄片的連續薄片(低伸長性薄片) 9a‧‧‧Continuous sheet of low-elongation sheet (low-elongation sheet)

9a’‧‧‧低伸長性薄片的連續薄片(低伸長性薄片) 9a’‧‧‧Continuous sheet of low-elongation sheet (low-elongation sheet)

9a1‧‧‧第1部份 9a1‧‧‧Part 1

9a1’‧‧‧第1部份 9a1’‧‧‧Part 1

9a2‧‧‧第2部份 9a2‧‧‧Part 2

9a2’‧‧‧第2部份 9a2’‧‧‧Part 2

10‧‧‧外包裝薄片生成處理部 10‧‧‧Outer packaging sheet generation and processing department

11‧‧‧加工裝置 11‧‧‧Processing device

12‧‧‧搬運機構 12‧‧‧Handling mechanism

12R‧‧‧搬運輥 12R‧‧‧handling roller

13‧‧‧波形輥機構 13‧‧‧wave roller mechanism

13u‧‧‧波形輥(輥) 13u‧‧‧wave roller (roller)

13u’‧‧‧輥 13u’‧‧‧roll

13d‧‧‧波形輥(輥) 13d‧‧‧wave roller (roller)

13d’‧‧‧輥 13d’‧‧‧roll

13m‧‧‧山部 13m

13m’‧‧‧大徑部份 13m’‧‧‧large diameter part

13v‧‧‧谷部 13v‧‧‧Tanibu

13v’‧‧‧小徑部份 13v’‧‧‧path part

14a‧‧‧預熱輥 14a‧‧‧Preheating roller

15‧‧‧接合裝置 15‧‧‧joining device

16‧‧‧夾輥機構 16‧‧‧pinch mechanism

16R‧‧‧夾輥 16R‧‧‧Pinch roller

17‧‧‧超音波熔敷裝置 17‧‧‧Ultrasonic welding device

17a‧‧‧鑽輥 17a‧‧‧Drill roll

17at‧‧‧突部 17at

17an‧‧‧非存在部分 17an‧‧‧non-existent part

17h‧‧‧發聲器 17h‧‧‧Sound generator

17hs‧‧‧振動面 17hs‧‧‧Vibration surface

18R‧‧‧搬運輥 18R‧‧‧handling roller

19u‧‧‧上輥 19u‧‧‧up roller

19d‧‧‧下輥 19d‧‧‧Lower roller

20‧‧‧腳周圍開口部形成處理部 20‧‧‧The opening around the foot forms the treatment part

21‧‧‧衝切裝置 21‧‧‧Punching device

21c‧‧‧刀刃 21c‧‧‧Blade

21u‧‧‧衝切輥 21u‧‧‧Cutting roller

21d‧‧‧鑽輥 21d‧‧‧Drill roll

30‧‧‧外包裝薄片收縮處理部(收縮裝置) 30‧‧‧Shrink processing section of outer packaging sheet (shrinking device)

30’‧‧‧外包裝薄片收縮處理部(收縮裝置) 30’‧‧‧Shrink processing section (shrinking device)

31‧‧‧上游側夾輥機構 31‧‧‧Upstream side pinch mechanism

31u‧‧‧上夾輥 31u‧‧‧Up pinch roller

31d‧‧‧下夾輥 31d‧‧‧Lower nip roller

33‧‧‧下游側夾輥機構 33‧‧‧ Downstream nip roller mechanism

33u‧‧‧上夾輥 33u‧‧‧Pinch roller

31’‧‧‧S鈎掛輥機構 31’‧‧‧S hook roller mechanism

31u’‧‧‧上輥 31u’‧‧‧up roller

31d’‧‧‧下輥 31d’‧‧‧Lower roller

33’‧‧‧S鈎掛輥機構 33’‧‧‧S hook roller mechanism

33u’‧‧‧上輥 33u’‧‧‧upper roller

33d’‧‧‧下輥 33d’‧‧‧Lower roller

40‧‧‧吸收性主體安裝處理部 40‧‧‧ Absorbent body installation and processing department

42‧‧‧旋轉滾筒 42‧‧‧Rotating drum

43‧‧‧保持墊 43‧‧‧Retaining pad

45‧‧‧裁斷裝置 45‧‧‧Cutting device

50‧‧‧二折處理部 50‧‧‧Two-fold processing department

60‧‧‧端密封處理部 60‧‧‧End Sealing Department

61‧‧‧熱密封加工裝置 61‧‧‧Heat seal processing device

61u‧‧‧上輥 61u‧‧‧upper roll

61d‧‧‧下輥 61d‧‧‧Lower roller

61sp‧‧‧密封圖案部 61sp‧‧‧Seal Design Department

70‧‧‧分割處理部 70‧‧‧Division Processing Department

71‧‧‧旋轉切削裝置 71‧‧‧Rotary cutting device

71c‧‧‧切削刃 71c‧‧‧Cutting edge

71u‧‧‧上輥(切削輥) 71u‧‧‧upper roller (cutting roller)

71d‧‧‧下輥(鑽輥) 71d‧‧‧lower roller (drill roller)

HB‧‧‧胴周圍開口部 HB‧‧‧Opening around the trunk

HL‧‧‧腳周圍開口部 HL‧‧‧Opening around the foot

CV‧‧‧搬運機構 CV‧‧‧carrying mechanism

j‧‧‧接合部 j‧‧‧Joint

j’‧‧‧接合部 j’‧‧‧Joint

jn‧‧‧非接合部 jn‧‧‧non-joint part

jn’‧‧‧非接合部 jn’‧‧‧non-joint part

Rj‧‧‧非接合部列 Rj‧‧‧non-joined series

j3‧‧‧接合部 j3‧‧‧Joint

j3L‧‧‧縱長帶狀部份 j3L‧‧‧Longitudinal band

j3W‧‧‧橫長帶狀部份 j3W‧‧‧horizontal strip

j3C‧‧‧接合部 j3C‧‧‧Joint

C9a1‧‧‧第1部份的中央位置 C9a1‧‧‧Central position of part 1

C9a1’‧‧‧第1部份的中央位置 C9a1’‧‧‧ Central position of Part 1

C9a2‧‧‧第2部份的中央位置 C9a2‧‧‧Central position of part 2

C9a2’‧‧‧第2部份的中央位置 C9a2’‧‧‧Central position of Part 2

Ab‧‧‧一部份 Ab‧‧‧Part

LM‧‧‧製造生產線 LM‧‧‧Manufacturing production line

Pk‧‧‧預定位置 Pk‧‧‧predetermined location

S1‧‧‧第1位置 S1‧‧‧First position

S2‧‧‧第2位置 S2‧‧‧ 2nd position

jes‧‧‧端密封部 jes‧‧‧End seal

R30‧‧‧搬運路徑 R30‧‧‧Handling path

第1A圖是作為本實施形態相關的吸收性物品之一例的褲子型紙尿片1的概略透視圖,第1B圖是從肌膚側顯示展開狀態之紙尿片1的概略上視圖。 Fig. 1A is a schematic perspective view of a pants-type diaper 1 as an example of an absorbent article according to this embodiment, and Fig. 1B is a schematic top view of the diaper 1 showing an expanded state from the skin side.

第2圖為分解展開狀態之紙尿片1表示的概略透視圖。 Fig. 2 is a schematic perspective view showing the diaper 1 in an exploded state.

第3圖為賦予美觀皺褶而設法的說明圖,從外層薄片9側顯示伸長狀態的外包裝薄片7的概略放大圖。 FIG. 3 is an explanatory view for trying to give a beautiful wrinkle, and shows a schematic enlarged view of the outer packaging sheet 7 in an extended state from the outer layer sheet 9 side.

第4A圖為製造紙尿片1的製造生產線LM的概略側視圖,第4B圖為製造紙尿片1的樣子的概略上視圖。 FIG. 4A is a schematic side view of the manufacturing line LM for manufacturing the paper diaper 1, and FIG. 4B is a schematic top view of how the paper diaper 1 is manufactured.

第5圖為外包裝薄片生成處理部10的概略側視圖。 FIG. 5 is a schematic side view of the packaging sheet generation processing unit 10.

第6圖為部份放大表示之加工裝置11的概略側視圖。 FIG. 6 is a schematic side view of the processing device 11 partially enlarged.

第7圖為第6圖中的VII-VII箭頭方向圖。 FIG. 7 is a VII-VII arrow direction diagram in FIG. 6.

第8圖是將鑽輥17a的外圍面朝旋轉方向展開顯示的放大圖。 Fig. 8 is an enlarged view showing the outer peripheral surface of the drill roller 17a unfolded in the direction of rotation.

第9圖是以設有熱密封加工裝置或壓接加工裝置來取 代外包裝薄片生成處理部10之超音波熔敷裝置17的構成的概略側視圖。 Figure 9 is taken with a heat sealing processing device or a crimping processing device A schematic side view of the configuration of the ultrasonic welding apparatus 17 of the packaging sheet generation processing unit 10.

第10圖為其他實施形態的說明圖,表示使伸縮性薄片8a的伸縮方向沿著CD方向時的處理狀態的透視影像圖。 Fig. 10 is an explanatory diagram of another embodiment, and is a perspective image view showing a processing state when the stretching direction of the stretchable sheet 8a is along the CD direction.

第11A圖是從MD方向的下游側顯示該其他實施形態相關的輥機構13’的概略前視圖,第11B圖為第11A圖中的B-B箭頭方向圖。 Fig. 11A is a schematic front view showing the roller mechanism 13' according to this other embodiment from the downstream side in the MD direction, and Fig. 11B is a B-B arrow direction view in Fig. 11A.

第12圖為外包裝薄片收縮處理部30的變形例30’的概略側視圖。 Fig. 12 is a schematic side view of a modified example 30' of the outer packaging sheet shrinkage processing section 30.

根據本說明書及添附圖示的記載,至少可使以下的事項獲得明確。 According to the description in this specification and the accompanying drawings, at least the following matters can be clarified.

一種吸收性物品相關之複合薄片的製造方法為具有:吸收性物品相關的伸縮性薄片,及伸長性比上述伸縮性薄片低的低伸長性薄片的複合薄片的製造方法,其特徵為:該方法具有:準備使得朝預定方向延伸的第1部份與較第1部份不延伸的第2部份在上述預定方向交互排列所形成的上述低伸長性薄片的步驟,及以在上述伸縮性薄片朝著伸縮方向伸長的狀態,使上述伸縮方向在上述預定方向一致並對上述低伸長性薄片透過複數接合部固定上述伸縮性薄片的步驟,上述固定步驟是將上述複數接合部朝著上述伸縮方向 及與上述伸縮方向交叉的方向的兩方向呈非連續分散地設置,並設置上述接合部,使得在上述複數接合部之中位在與上述伸縮方向相鄰的接合部彼此之間的非接合部,分別至少包含有各一個上述第1部份的上述預定方向的中央位置與上述第2部份的上述預定方向的中央位置。 A method of manufacturing a composite sheet related to an absorbent article is a method of manufacturing a composite sheet having a stretchable sheet related to an absorbent article and a low-elongation sheet having a lower extensibility than the above-mentioned stretchable sheet, characterized by the method The method includes: preparing the first portion extending in a predetermined direction and the second portion not extending from the first portion to alternately arrange the formed low-elongation sheet in the predetermined direction, and the stretchable sheet A state of being stretched toward the stretching direction, making the stretching direction coincide with the predetermined direction, and fixing the stretchable sheet through the plural joint portions of the low-stretchable sheet, the fixing step is to move the plural joint portions toward the stretching direction And two directions intersecting the telescopic direction are provided in a discontinuously dispersed manner, and the joint portion is provided so that the non-joint portion between the joint portions adjacent to the telescopic direction among the plural joint portions , Each of which includes at least one central position of the first portion in the predetermined direction and a central position of the second portion in the predetermined direction.

根據以上的吸收性物品相關之複合薄片的製造方法,可在複合薄片形成美觀的皺摺。詳細是如以下說明。 According to the manufacturing method of the composite sheet related to the above absorbent article, it is possible to form a beautiful wrinkle on the composite sheet. The details are as follows.

首先,上述的準備步驟雖是準備具有上述第1部份與第2部份的低伸長性薄片,但是同薄片根據該第1部份的延伸量與第2部份的延伸量的差而具有剛性差。因此,根據相關的剛性差容易將低伸長性薄片朝著上述預定方向壓曲。 First of all, although the above preparation step is to prepare the low-elongation sheet having the first and second parts, the same sheet has a difference according to the difference between the elongation of the first part and the elongation of the second part Poor rigidity. Therefore, it is easy to buckle the low-elongation sheet in the above-mentioned predetermined direction according to the related rigidity difference.

另一方面,上述的固定步驟雖是對該低伸長性薄片固定已伸長狀態的伸縮性薄片,但相關的固定後,一旦解除該已伸長的狀態時,伸縮性薄片朝著成為低伸長性薄片的上述預定方向收縮。如此一來,透過兩薄片的接合部賦予從伸縮性薄片朝著低伸長性薄片之上述預定方向的收縮力,但相關的收縮力是以壓縮的外力沿上述預定方向朝著低伸長性薄片作用。因此,該低伸長性薄片根據上述的剛性差被壓曲而賦予皺摺。 On the other hand, although the above-mentioned fixing step is to fix the stretchable sheet in the stretched state to the low-elongation sheet, when the stretched state is released after the related fixation, the stretchable sheet becomes a low-stretchable sheet The above-mentioned predetermined direction shrinks. In this way, the contraction force from the stretchable sheet toward the low-elongation sheet in the above-mentioned predetermined direction is imparted through the junction of the two sheets, but the relevant contraction force acts on the low-elongation sheet in the above-mentioned predetermined direction by the external force of compression . Therefore, the low-elongation sheet is buckled according to the above-mentioned difference in rigidity to give wrinkles.

在此,如上述,相關的剛性差雖是根據第1部份與第2部份的兩者而產生,但相關的第1部份的中央位置與第2部份的中央位置是分別至少各一個包含於上述非接合 部。因此,根據相關的剛性差,低伸長性薄片中的非接合部可迅速被壓曲,其結果,可對該非接合部迅速賦予皺摺。並且,可在複合薄片形成美觀的皺褶。 Here, as described above, although the related rigidity difference is generated based on both the first part and the second part, the central position of the related first part and the central position of the second part are at least respectively One included in the above non-joint unit. Therefore, the non-joined portion in the low-elongation sheet can be quickly buckled according to the related stiffness, and as a result, the non-joined portion can be quickly wrinkled. Moreover, beautiful wrinkles can be formed on the composite sheet.

上述吸收性物品相關之複合薄片的製造方法中,上述準備步驟是以準備形成有使複數的上述第2部份沿著上述預定方向以預定的形成間距排列的上述低伸長性薄片,上述固定步驟是以設置上述接合部使得上述非接合部的上述伸縮方向的長度大於上述形成間距為佳。 In the method for manufacturing a composite sheet related to the absorbent article, the preparation step is to prepare the low-elongation sheet in which a plurality of the second portions are arranged at a predetermined formation pitch along the predetermined direction, and the fixing step It is preferable to provide the joining portion so that the length of the non-joining portion in the direction of expansion and contraction is greater than the formation pitch.

根據上述吸收性物品相關的複合薄片的製造方法,非接合部的長度大於第2部份沿著預定方向排列的上述形成間距。因此,在非接合部份至少可包含各一個第1部份的中央位置與第2部份的中央位置,藉此,可對低伸長性薄片中的非接合部迅速賦予皺摺。 According to the method of manufacturing a composite sheet related to the above-mentioned absorbent article, the length of the non-joint portion is larger than the above-mentioned forming pitch where the second portion is arranged along the predetermined direction. Therefore, the non-joined portion may include at least a central position of the first portion and a central position of the second portion, whereby the non-joined portion in the low-elongation sheet can be quickly wrinkled.

上述吸收性物品相關之複合薄片的製造方法中,設置上述接合部,以使得上述第1部份的上述預定方向的中央位置與上述第2部份的上述預定方向的中央位置分別各複數個包含於上述非接合部為佳。 In the method for manufacturing a composite sheet related to the absorbent article, the joining portion is provided so that the central position in the predetermined direction of the first portion and the central position in the predetermined direction of the second portion each include a plurality of It is preferable for the non-joining part.

根據上述吸收性物品相關的複合薄片的製造方法,在非接合部分別各複數個包含有第1部份的中央位置與第2部份的中央位置。因此,相關的非接合部在上述預定方向的複數位置產生剛性差,因此,低伸長性薄片中的非接合部在複數位置可迅速被壓曲,其結果,可對該非 接合部賦予較多皺摺。 According to the method for manufacturing a composite sheet related to the above-mentioned absorbent article, each of the non-joint portions includes a central position of the first portion and a central position of the second portion. Therefore, the relevant non-joined portion has a difference in rigidity at a plurality of positions in the predetermined direction. Therefore, the non-joined portion in the low-elongation sheet can be quickly buckled at the plurality of positions, and as a result, The joint portion gives more wrinkles.

相關之複合薄片的製造方法中,上述準備步驟是以準備形成有使複數的上述第2部份沿著上述預定方向以預定的形成間距排列的上述低伸長性薄片,上述固定步驟是以設置上述接合部使得上述非接合部的上述伸縮方向的長度是大於上述形成間距的複數倍大為佳。 In a related method of manufacturing a composite sheet, the preparation step is to prepare the low-elongation sheet in which a plurality of the second portions are arranged at a predetermined formation pitch along the predetermined direction, and the fixing step is to provide the The joining portion preferably has a length in the expansion and contraction direction of the non-joining portion that is greater than a multiple of the forming pitch.

根據如以上吸收性物品相關的複合薄片的製造方法,非接合部的長度為大於上述第2部份的形成間距的整數倍大。因此,在非接合部至少可分別包含各複數個第1部份的中央位置與第2部份的中央位置,藉此,可對低伸長性薄片中的非接合部迅速賦予皺摺。 According to the method of manufacturing a composite sheet related to an absorbent article as described above, the length of the non-joint portion is greater than an integral multiple of the formation pitch of the second portion. Therefore, the non-joined portion can include at least a plurality of central positions of the first portion and the second portion, respectively, thereby allowing wrinkles to be quickly provided to the non-joined portions in the low-elongation sheet.

上述吸收性物品相關的複合薄片的製造方法中,上述低伸長性薄片是以連續於上述第1預定方向的連續薄片,上述準備步驟是以上述預定方向為搬運方向進行上述低伸長性薄片的搬運,並在該搬運中的上述低伸長性薄片形成上述第1部份與上述第2部份,不捲繞形成有上述第1部份與上述第2部份的上述低伸長性薄片,朝著進行上述固定步驟的位置搬運為佳。 In the method of manufacturing a composite sheet related to the absorbent article, the low-elongation sheet is a continuous sheet that is continuous in the first predetermined direction, and the preparation step is to transport the low-elongation sheet with the predetermined direction as the transport direction , And the low-elongation sheet in the conveyance forms the first part and the second part, without winding the low-elongation sheet formed with the first part and the second part, toward The location where the above fixing steps are carried is preferred.

根據如以上吸收性物品相關的複合薄片的製造方法,準備步驟中,在低伸長性薄片形成第1部份與第 2部份。因此,即使是從最初不具有第1部份與第2部份的規格的低伸長性薄片,仍可作為該複合薄片的材料使用。又,在上述第1部份及第2部份的形成後不捲繞低伸長性薄片,可將同薄片的狀態朝著進行上述固定步驟的位置搬運。因此,可有效防止伴隨上述第1部份及第2部份的形成所增加之低伸長性薄片的高度,因捲繞而被壓潰,結果,可將低伸長性薄片加工成具備源於精度高之柔軟度的薄片。 According to the manufacturing method of the composite sheet related to the absorbent article as above, in the preparation step, the first part and the first 2 parts. Therefore, even a low-elongation sheet that does not originally have the specifications of the first and second parts can still be used as the material of the composite sheet. Moreover, after forming the first part and the second part, the low-elongation sheet is not wound, and the state of the same sheet can be transported toward the position where the fixing step is performed. Therefore, it is possible to effectively prevent the height of the low-elongation sheet that is increased due to the formation of the above-mentioned first and second parts from being crushed by winding, and as a result, the low-elongation sheet can be processed to have accuracy derived from Highly soft flakes.

上述吸收性物品相關的複合薄片的製造方法中,上述低伸長性薄片是以連續於上述預定方向的連續薄片,上述伸縮性薄片是以連續於上述伸縮方向的連續薄片,在上述固定步驟中,上述伸縮性薄片是以上述伸縮方向為搬運方向進行搬運,固定有上述低伸長性薄片的上述伸縮性薄片,在上述固定步驟之後通過上述搬運方向的預定位置時,上述伸縮性薄片之中以使得通過上述預定位置的部份依序朝上述伸縮方向收縮為佳。 In the method of manufacturing a composite sheet related to the absorbent article, the low-elongation sheet is a continuous sheet continuous in the predetermined direction, and the stretchable sheet is a continuous sheet continuous in the stretching direction. In the fixing step, The stretchable sheet is transported with the stretchable direction as the transport direction, and the stretchable sheet to which the low-elongation sheet is fixed is passed through a predetermined position in the transport direction after the fixing step. It is preferable that the portion passing through the predetermined position sequentially shrinks in the direction of expansion and contraction.

根據如以上吸收性物品相關的複合薄片的製造方法,固定有低伸長性薄片的伸縮性薄片,在通過搬運方向的上述預定位置時,伸縮性薄片之中使得通過上述預定位置的部份依序朝上述伸縮方向收縮。藉此,低伸長性 薄片的第1部份及第2部份通過該預定位置時,在同薄片上依序形成皺摺,其結果,複合薄片可美觀地形成整齊的皺摺。 According to the method of manufacturing a composite sheet related to an absorbent article as described above, when the stretchable sheet to which the low-elongation sheet is fixed passes through the predetermined position in the conveying direction, the portion of the stretchable sheet that passes the predetermined position in order Shrink in the direction of expansion and contraction. With this, low elongation When the first part and the second part of the sheet pass through the predetermined position, wrinkles are sequentially formed on the same sheet, and as a result, the composite sheet can form neat wrinkles beautifully.

上述吸收性物品相關的複合薄片的製造方法中,上述準備步驟是以在和上述預定方向交叉的方向的預定位置,一邊產生不朝著上述預定方向延伸的部份,並在上述低伸長性薄片形成上述第1部份與上述第2部份為佳。 In the method of manufacturing a composite sheet related to the absorbent article, the preparation step is to generate a portion that does not extend in the predetermined direction at a predetermined position in a direction that intersects the predetermined direction. It is preferable to form the first part and the second part.

根據如以上吸收性物品相關的複合薄片的製造方法,相對於低伸長性薄片在將第1部份及第2部份排列於預定方向形成時,在與同預定方向交叉的方向的預定位置,產生不朝著同預定方向延伸的部份。並且,在該未延伸的部份未發現有伸縮性。因此,可一邊整體地抑制低伸縮性薄片之伸縮性的發現,並可在同薄片上形成上述第1部份及第2部份。 According to the method of manufacturing a composite sheet related to an absorbent article as described above, when forming the first part and the second part in a predetermined direction with respect to the low-elongation sheet, it is at a predetermined position in a direction crossing the predetermined direction, A portion that does not extend in the same predetermined direction is generated. In addition, no stretchability was found in the unstretched portion. Therefore, it is possible to suppress the discovery of the stretchability of the low-stretchable sheet as a whole, and it is possible to form the first part and the second part on the same sheet.

上述吸收性物品相關的複合薄片的製造方法中,上述低伸長性薄片是以連續於上述預定方向的連續薄片,在一邊使彼此的外圍面相對並使得上述低伸長性薄片通過沿著上述搬運方向旋轉的一對輥彼此之間,藉此形成上述第1部份及上述第2部份,上述一對輥是以分別沿著旋轉方向而在各外圍面交互 形成有山部與谷部波形輥,並且上述一對輥彼此是使彼此的上述山部咬合旋轉而進入上述谷部,上述一對輥之中的至少一方的輥的上述山部是以非連續設置在沿著上述輥的轉軸的方向為佳。 In the method for manufacturing a composite sheet related to the absorbent article, the low-elongation sheet is a continuous sheet continuous in the predetermined direction, and the peripheral surfaces of the low-elongation sheet are opposed to each other and the low-elongation sheet passes along the conveying direction A pair of rotating rollers form the first part and the second part, and the pair of rollers interact with each other along the rotation direction on each peripheral surface A mountain portion and a valley portion wave roller are formed, and the pair of rollers mutually engage the mountain portions to rotate into the valley portion, and the mountain portion of at least one of the pair of rollers is discontinuous It is preferably arranged in the direction along the rotation axis of the roller.

根據如以上吸收性物品相關的複合薄片的製造方法,使得連續於預定方向的低伸長性薄片通過一對輥彼此之間時,可形成第1部份及第2部份。因此,可相對於該低伸長性薄片效率良好地形成第1部份及第2部份。 According to the method for manufacturing a composite sheet related to an absorbent article as described above, when a low-elongation sheet continuous in a predetermined direction passes between a pair of rollers, the first part and the second part can be formed. Therefore, the first part and the second part can be efficiently formed with respect to the low-elongation sheet.

又,一對輥之中的至少一方的輥的山部中形成非連續的部份可確實不朝著低伸長性薄片延伸。藉此,在該部份可確實產生上述不延伸的部份。其結果,可確實抑制形成第1部份及第2部份時可能引起之低伸長性薄片的伸縮性的發現。 In addition, the discontinuous portion of the mountain portion of at least one of the pair of rollers does not extend toward the low-elongation sheet. Thereby, the above-mentioned non-extended part can be surely generated in this part. As a result, the discovery of the stretchability of the low-elongation sheet that may be caused when forming the first part and the second part can be surely suppressed.

上述吸收性物品相關的複合薄片的製造方法中,上述一對輥之中的另一方輥的上述山部是以和沿著上述輥的轉軸的方向連續地設置為佳。 In the method for manufacturing a composite sheet related to the absorbent article, it is preferable that the mountain portion of the other roller among the pair of rollers is provided continuously in the direction along the rotation axis of the roller.

根據如以上吸收性物品相關的複合薄片的製造方法,對於一對輥之中的另一方輥的山部,不需施以使該山部成為非連續的加工即可。因此,可獲得成本刪減。 According to the method for manufacturing a composite sheet related to an absorbent article as described above, the mountain portion of the other roller of the pair of rollers need not be processed to make the mountain portion discontinuous. Therefore, cost reduction can be obtained.

上述吸收性物品相關的複合薄片的製造方法中,上述固定步驟是以將上述伸縮性薄片與上述低伸長性薄片在彼此的厚度方向重疊的狀態,從厚度方向藉一對夾 壓構件夾壓上述伸縮性薄片與上述低伸長性薄片,藉此形成上述接合部,上述一對夾壓構件之中的一方的夾壓構件是在與上述低伸長性薄片相對的面上,以形成有上述複數接合部的模式具有複數突部,另一方的夾壓構件是在與上述伸縮性薄片相對的面上,具有比承接上述突部的頂面的上述頂面大的面部為佳。 In the method of manufacturing a composite sheet related to the absorbent article, the fixing step is a state in which the stretchable sheet and the low-elongation sheet are overlapped in the thickness direction of each other, and a pair of clips are borrowed from the thickness direction The pressing member presses the stretchable sheet and the low-elongation sheet to form the joint portion, and one of the pair of pressing members is on a surface opposite to the low-elongation sheet, The mode in which the plurality of joints are formed has a plurality of protrusions, and the other clamping member preferably has a face larger than the top surface that receives the top surface of the protrusions on the surface opposed to the stretchable sheet.

根據如以上吸收性物品相關的複合薄片的製造方法,突部是與伸長性薄片相對設置,藉此,突部可透過低伸長性薄片夾壓伸縮性薄片。因此,藉突部的頂面可有效抑制伸縮性薄片局部變薄而延伸的狀況。另一方面,位在突部側的低伸長性薄片的伸長性是低於伸縮性薄片。因此,因突部的頂面使得低伸長性薄片局部變薄而延伸的狀況,可依據同薄片的低伸長性而有效的避免,藉此,可在突部的頂面殘留足夠量的低伸長性薄片。並且,其結果,低伸長性薄片與伸縮性薄片可以高的接合強度接合。 According to the method of manufacturing a composite sheet related to an absorbent article as described above, the protrusion is provided opposite to the stretchable sheet, whereby the protrusion can sandwich the stretchable sheet through the low-elongation sheet. Therefore, the top surface of the protrusion can effectively suppress the situation where the stretchable sheet is locally thinned and extended. On the other hand, the stretchability of the low-elongation sheet on the protrusion side is lower than that of the stretchable sheet. Therefore, the situation in which the low-elongation sheet is locally thinned and extended due to the top surface of the protrusion can be effectively avoided according to the low extensibility of the same sheet, by which a sufficient amount of low elongation can remain on the top surface of the protrusion Sexual flakes. In addition, as a result, the low-elongation sheet and the stretchable sheet can be bonded with high bonding strength.

又,具有吸收性物品相關的伸縮性薄片,及伸長性比上述伸縮性薄片低的低伸長性薄片的複合薄片的製造裝置,其特徵為,具有:準備使得朝預定方向延伸的第1部份與較上述第1部份不延伸的第2部份在上述預定方向交互排列所形成的上述低伸長性薄片的裝置,及以在上述伸縮性薄片朝著伸縮方向伸長的狀態,使上述伸縮方向在上述預定方向一致並對上述低伸長性薄片透 過複數接合部固定上述伸縮性薄片的裝置,上述固定的裝置是將上述複數接合部朝著上述伸縮方向及與上述伸縮方向交叉的方向的兩方向呈非連續分散地設置,並設置上述接合部,使得在上述複數接合部之中位在與上述伸縮方向相鄰的接合部彼此之間的非接合部,分別至少包含有各一個上述第1部份的上述預定方向的中央位置與上述第2部份的上述預定方向的中央位置。 In addition, a manufacturing device of a composite sheet having an elastic sheet related to an absorbent article and a low-elongation sheet having a lower extensibility than the above-mentioned elastic sheet is characterized by having a first part prepared to extend in a predetermined direction The device for arranging the formed low-elongation sheet alternately with the second part that does not extend compared to the first part in the predetermined direction, and in the state where the stretchable sheet is stretched toward the stretch direction, the stretch direction Consistent in the above predetermined direction and transparent An apparatus for fixing the stretchable sheet through a plurality of joints, the fixing means is arranged to disperse the plurality of joints in a discontinuous manner in both directions of the telescopic direction and the direction crossing the telescopic direction, and the joint is provided , So that the non-joint portions between the joint portions adjacent to the telescopic direction among the plurality of joint portions respectively include at least one central position of the first portion in the predetermined direction and the second Part of the central position in the above predetermined direction.

根據如以上吸收性物品相關的複合薄片的製造裝置,與上述的製造方法中所說明的相同理由,可在複合薄片形成美觀的皺摺。 According to the apparatus for manufacturing a composite sheet related to the above absorbent article, for the same reason as described in the above-described manufacturing method, a beautiful wrinkle can be formed in the composite sheet.

===本實施形態=== ===This embodiment form===

本實施形態之吸收性物品相關的複合薄片的製造方法是使用於作為吸收性物品之一例的褲子型用後即棄式紙尿片1的製造生產線LM。並且,同生產線LM是製造紙尿片1的基材薄片7a作為上述的複合薄片。 The manufacturing method of the composite sheet related to the absorbent article of this embodiment is used in the production line LM of the disposable diaper 1 for pants type as an example of the absorbent article. Moreover, the same production line LM is the base sheet 7a for manufacturing the paper diaper 1 as the above-mentioned composite sheet.

<<<用後即棄式紙尿片1>>> <<<Disposable Diapers 1>>>

第1A圖為褲子型的紙尿片1的概略透視圖。第1B圖是從肌膚側顯示展開狀態之紙尿片1的概略上視圖。第2圖為分解展開狀態之紙尿片1表示的概略透視圖。 FIG. 1A is a schematic perspective view of a pants-type diaper 1. Fig. 1B is a schematic top view of the diaper 1 showing the unfolded state from the skin side. Fig. 2 is a schematic perspective view showing the diaper 1 in an exploded state.

並且,以下的說明是紙尿片1裝設於著用人時,將位在該著用人的肌膚側的一側僅稱為「肌膚側」,另一方,位於該著用人的非肌膚側的一側僅稱為「非肌膚側」。 In the following description, when the diaper 1 is installed on the user, the side located on the skin side of the user is only referred to as the "skin side", and the other side is located on the non-skin side of the user. The side is only called the "non-skin side".

如第1B圖及第2圖表示,該紙尿片1是例如兩片式的紙尿片1。亦即,同紙尿片1具有作為第1零組件的吸收尿等***液的例如平面顯示大致呈長方形狀的吸收性主體3,並具有作為包覆上述吸收性主體3的非肌膚側面設置而成為紙尿片1外包裝之平面顯示大致呈沙漏形狀的外包裝薄片7的第2零組件。 As shown in FIGS. 1B and 2, the diaper 1 is, for example, a two-piece diaper 1. That is, the same diaper 1 has an absorbent body 3 such as an excretory fluid such as absorbent urine as the first component, which is substantially rectangular in plan view, and has a non-skin side surface covering the absorbent body 3 as The plan view of the outer package of the paper diaper 1 shows the second component of the outer package sheet 7 having a substantially hourglass shape.

如第2圖表示,吸收性主體3具有吸收***液的吸收性芯子3c。吸收性芯子3c是將紙漿纖維等的液體吸收性纖維或高吸收性聚合物等的液體吸收性粒狀物成形作為預定形狀之一例的平面顯示大致呈長方形狀。再者,上述吸收性芯子3c也可根據需要而以紙巾等透液性的包覆薄片包覆。 As shown in FIG. 2, the absorbent body 3 has an absorbent core 3c that absorbs excretory fluid. The absorptive core 3c is formed by shaping liquid-absorbent fibers such as pulp fibers or liquid-absorbable particulate materials such as superabsorbent polymers into a rectangular shape as a plan view. In addition, the absorbent core 3c may be covered with a liquid-permeable coating sheet such as paper towels as necessary.

在上述吸收性芯子3c的肌膚側面設有覆蓋該面的不織布等透液性的上層薄片4,同樣在同一吸收性芯子3c的非肌膚側面設有全面覆蓋該面的薄膜等不透液性的防漏薄片5。 A liquid-permeable upper sheet 4 such as a non-woven fabric covering the surface of the absorbent core 3c is provided on the skin side, and a film-impervious liquid such as a film covering the entire surface is also provided on the non-skin side of the same absorbent core 3c Sexual leak-proof sheet 5.

在此,該例中,任一的薄片4、5皆是形成平面顯示大致呈長方形狀,又,任一薄片4、5皆是從吸收性芯子3c的長方向的各端部向外方突出。並且,上層薄片4中突出的部份4eL與防漏薄片5中突出的部份5eL是彼此以黏著或熔敷等所接合。又,有關寬度方向是設僅防漏薄片5從吸收性芯子3c的兩側向外方突出的尺寸,該突出的各部份5eW、5ew分別在肌膚側被回折,以包覆上層薄片4的寬方向各端部的狀態藉黏著或熔敷等固定。並且,藉 以使吸收性芯子3c成被上層薄片4與防漏薄片5所包覆的狀態,其結果,成為吸收性主體3的形態。 Here, in this example, any of the sheets 4 and 5 are formed in a substantially rectangular shape in plan view, and any of the sheets 4 and 5 are outward from each end of the absorbent core 3c in the longitudinal direction prominent. In addition, the protruding portion 4eL in the upper layer sheet 4 and the protruding portion 5eL in the leakage preventing sheet 5 are joined to each other by adhesion or welding. In addition, the width direction is such that only the leak-proof sheet 5 protrudes outward from both sides of the absorbent core 3c, and the protruding parts 5eW and 5ew are folded back on the skin side to cover the upper sheet 4 The state of each end in the width direction is fixed by adhesion or welding. Also, borrow The absorbent core 3c is covered with the upper sheet 4 and the leak-proof sheet 5, and as a result, it becomes the form of the absorbent body 3.

外包裝薄片7在第1B圖的展開狀態為平面顯示大致呈沙漏形狀的柔軟薄片,同一薄片7彼此正交的三方向具有厚度方向與長方向與寬方向。又,該外包裝薄片7是在長方向區分成三個部份7f、7b、7c。亦即,外包裝薄片7被區分成:配置在著用人腹側的腹側部7f;配置在著用人背側的背側部7b;及配置在著用人胯間的***部7c。並且,***部7c是當然位於腹側部7f與背側部7b之間,藉此,該***部7c在平面顯示大致呈沙漏形狀中成為捆包寬方向形狀的部份7c。 In the expanded state of FIG. 1B, the outer packaging sheet 7 is a flexible sheet having a substantially hourglass shape in plan view, and three directions in which the same sheet 7 is orthogonal to each other have a thickness direction, a longitudinal direction, and a width direction. The outer packaging sheet 7 is divided into three parts 7f, 7b, and 7c in the longitudinal direction. That is, the outer packaging sheet 7 is divided into: a ventral portion 7f disposed on the ventral side of the user; a dorsal portion 7b disposed on the back side of the user; and a lower crotch portion 7c disposed between the crotch of the user. In addition, the lower crotch portion 7c is of course located between the ventral portion 7f and the back portion 7b, whereby the lower crotch portion 7c becomes a portion 7c in the shape of a bundle in the width direction in a substantially hourglass shape in plan view.

如第2圖表示,在上述外包裝薄片7使用兩層構造的所謂層疊薄片7。亦即,該外包裝薄片7具有:紙尿片1著用時朝著用人的肌膚側成為內層的內層薄片8,及同樣著用時朝著用人的非肌膚側成為外層的外層薄片9,上述內層薄片8與外層薄片9是在厚度方向一邊重疊並以黏著或熔敷等接合。再者,該例是將接合後的部份所成的接合部j、j…以非連續分散而成的預定的接合圖案熔敷(參閱第3圖),對此如後述。 As shown in FIG. 2, a so-called laminated sheet 7 having a two-layer structure is used for the outer packaging sheet 7. That is, the outer packaging sheet 7 has an inner layer sheet 8 that becomes an inner layer toward the user's skin side when the paper diaper 1 is applied, and an outer layer sheet 9 that becomes an outer layer toward the non-skin side of the user when similarly used In this case, the inner layer sheet 8 and the outer layer sheet 9 are overlapped on one side in the thickness direction and joined by adhesion or welding. Furthermore, in this example, the joint portions j, j ... formed by the joined portions are welded in a predetermined joint pattern discontinuously dispersed (see FIG. 3 ), which will be described later.

上述內層薄片8的材料是使用在紙尿片1的寬方向具有伸縮性的伸縮性薄片8,另一方面,外層薄片9的材料是使用紙尿片1的寬方向為低伸長性的低伸長性薄片9。並且,伸縮性的內層薄片8在寬方向被伸長為如自然長度的2.5倍等的預定的伸長倍率為止的狀態(以 下,也稱伸長狀態),重疊在同樣張貼於寬方向的狀態的低伸長性的外層薄片9,該等兩薄片8、9是以上述的接合圖案成一體固定。 The material of the inner layer sheet 8 is a stretchable sheet 8 that is stretchable in the width direction of the paper diaper 1, and the material of the outer layer sheet 9 is a low stretchability that uses the paper diaper 1 in the width direction. Extendable sheet 9 In addition, the stretchable inner layer sheet 8 is stretched in the width direction to a predetermined stretch ratio such as 2.5 times the natural length (in (Hereinafter, also referred to as an extended state), a low-elongation outer layer sheet 9 superposed on the same state in the width direction, and the two sheets 8 and 9 are integrally fixed with the above-mentioned joining pattern.

因此,上述伸長狀態一旦被解除時,內層薄片8會根據本身的伸縮性而朝著紙尿片1的寬方向收縮,但此時,針對低伸長性的外層薄片9,會成複數皺褶狀被朝向紙尿片1的寬方向彎折,藉此,同一外層薄片9會迅速追隨著內層薄片8的收縮,使寬方向的全長縮短。並且,其結果,在外力不作用於紙尿片1的無負載狀態下,外包裝薄片7會以整體朝著寬方向短縮,並且同一外包裝薄片7的外面也會起因於外層薄片9的上述彎折而成為複數皺褶聚集的狀態。但是,對上述外包裝薄片7賦予寬方向的拉伸的外力時,可使該外包裝薄片7大致呈彈性伸長至上述皺褶的完全伸展為止,藉此,紙尿片1的外包裝薄片7成為在寬方向具有伸縮性的設計。 Therefore, once the above-mentioned stretched state is released, the inner layer sheet 8 shrinks in the width direction of the diaper 1 according to its own stretchability, but at this time, the outer layer sheet 9 with low stretchability will become a plurality of wrinkles The shape is bent toward the width direction of the diaper 1, whereby the same outer layer sheet 9 quickly follows the contraction of the inner layer sheet 8 to shorten the entire length in the width direction. In addition, as a result, in the unloaded state where the external force does not act on the diaper 1, the outer packaging sheet 7 is shortened in the entire width direction, and the outer surface of the same outer packaging sheet 7 is also caused by the above-mentioned outer layer sheet 9 It bends and becomes a state where plural folds are gathered. However, when an external force for stretching in the width direction is applied to the outer packaging sheet 7, the outer packaging sheet 7 can be stretched substantially elastically until the wrinkles are fully extended, whereby the outer packaging sheet 7 of the paper diaper 1 It becomes a design that is flexible in the width direction.

再者,上述外包裝薄片7中的外層薄片9的皺褶是左右紙尿片1的外觀。因此,本實施形態為設法賦予上述皺摺美麗的外觀。第3圖為賦予美觀皺褶而設法的說明圖,從外層薄片9側顯示皺摺完全伸展而張貼於寬方向的伸長狀態(後述的第1伸長狀態)的外包裝薄片7的概略放大圖。 In addition, the wrinkles of the outer layer sheet 9 in the outer packaging sheet 7 are the appearance of the left and right diapers 1. Therefore, this embodiment seeks to give the wrinkle a beautiful appearance. FIG. 3 is an explanatory view for trying to give a beautiful wrinkle, and shows a schematic enlarged view of the outer packaging sheet 7 from the side of the outer layer sheet 9 in which the wrinkle is fully extended and is stretched in the widthwise extended state (first extended state described later).

同第3圖表示,首先,根據上述的接合圖案在外層薄片9形成與內層薄片8接合用的複數接合部j、j…,但是上述的複數接合部j、j…在上述寬方向及上述長方向的兩 方向是以非連續分散地設置。第3圖的例中,複數接合部j、j…是以所謂鋸齒狀圖案配置。亦即,鋸齒狀圖案具有複數列之複數的接合部j、j…在寬方向一邊隔開間隔並在寬方向以預定的間距PjW排列所成的接合部列Rj,並且該等複數列接合部列Rj、Rj…是分別在與長方向相鄰的接合部列Rj之間,在寬方向僅偏離半間距(=PjW/2)配置。 As shown in FIG. 3, first, a plurality of bonding parts j, j for bonding to the inner layer sheet 8 are formed on the outer layer sheet 9 according to the above-mentioned bonding pattern, but the above-mentioned plural bonding parts j, j... are in the width direction and above Long two The direction is set discretely and discretely. In the example of FIG. 3, the plural joint portions j, j... are arranged in a so-called zigzag pattern. That is, the zigzag pattern has a plurality of joints j, j of a plurality of rows... The joint rows Rj formed by arranging the joints Rj at intervals in the width direction at a predetermined pitch PjW in the width direction, and the plurality of joints The rows Rj, Rj... are arranged between the joint row Rj adjacent to the longitudinal direction, respectively, and deviated only by a half pitch (=PjW/2) in the width direction.

又,各接合部j、j…是起因於該接合而成為高剛性,因此賦予皺褶困難,相對於此,位在與寬方向相鄰的接合部j、j…彼此之間的非接合部jn(未接合的部份jn)則是起因於該非接合而成為低剛性。因此,在外層薄片9朝著寬方向收縮時,主要是對非接合部jn、jn…賦予皺褶。並且,此時只要將該皺褶賦予各非接合部jn、jn…,即可獲得外層薄片9良好的外觀。亦即,在非接合部jn未賦予皺褶較少側,其外觀變得良好。又,通常皺褶容易賦予具剛性差的部份。 In addition, since the joints j, j... are highly rigid due to the joint, it is difficult to impart wrinkles. On the other hand, the joints j, j... which are adjacent to the width direction are non-joint parts between each other jn (unjoined part jn) is due to the non-joint and becomes low rigidity. Therefore, when the outer layer sheet 9 shrinks in the width direction, wrinkles are mainly given to the non-joined portions jn, jn... In this case, as long as the wrinkles are given to the non-joint portions jn, jn, etc., a good appearance of the outer layer sheet 9 can be obtained. That is, the appearance is improved on the side where the wrinkle is not imparted to the non-joint portion jn. In addition, wrinkles are usually easily given to parts with poor rigidity.

為此,該例是以對各非接合部jn、jn…分別確實賦予皺褶的目的,對接合於內層薄片8的前一外層薄片9預先將剛性差賦予各非接合部jn。並且,剛性差的賦予是如以下得以實現。即,對外層薄片9,在寬方向交互形成朝著寬方向延伸的第1部份9a1及比該第1部份9a1較不延伸的第2部份9a2,但此時,至少分別在各一個各非接合部jn包含有該第1部份9a1的寬方向的中央位置C9a1與第2部份9a2的寬方向的中央位置C9a2。並且,藉此各非接 合部jn中,根據第1部份9a1與第2部份9a2的剛性差,使得各皺褶的賦予變得容易。並且,其結果,上述寬方向的收縮力一旦作用於外層薄片9時,在各非接合部jn分別形成有皺褶,因此,整體可成為紙尿片1之外層薄片9的良好外觀。 Therefore, in this example, for the purpose of providing wrinkles to each of the non-joined parts jn, jn..., the difference in rigidity is given to the non-joined parts jn in advance before the outer layer sheet 9 joined to the inner layer sheet 8. In addition, the provision of poor rigidity is achieved as follows. That is, the outer layer sheet 9 alternately forms a first portion 9a1 extending in the width direction and a second portion 9a2 extending less than the first portion 9a1 in the width direction, but at this time, at least one of each Each non-joining portion jn includes a central position C9a1 in the width direction of the first portion 9a1 and a central position C9a2 in the width direction of the second portion 9a2. And, with this In the joint portion jn, due to the difference in rigidity between the first portion 9a1 and the second portion 9a2, it is easy to impart each wrinkle. In addition, as a result, when the above-mentioned shrinkage force in the width direction acts on the outer layer sheet 9, wrinkles are formed in each non-joint portion jn, so that the entirety can provide a good appearance of the outer layer sheet 9 of the diaper 1.

再者,第3圖的例中,複數列的接合部列Rj、Rj是在上述的長方向以預定間距PRj排列,針對上述間距PRj例如是從1.5mm~5mm的範圍來選擇任意值,較佳是從2mm~4mm的範圍,更佳的是從2mm~3mm的範圍選擇任意值。並且,小於各範圍的下限值時,在非接合部jn確保形成皺褶用的足夠的尺寸會變得困難,另一方面,大於各範圍的上限值時,伸縮性薄片8a與低伸長性薄片9at的固定會減弱。因此,以納入於上述的範圍為佳。但是,不僅只限於上述的範圍。 Furthermore, in the example of FIG. 3, the joint row Rj and Rj of the plural rows are arranged at a predetermined pitch PRj in the above-mentioned long direction. For the pitch PRj, for example, an arbitrary value is selected from the range of 1.5 mm to 5 mm. Preferably, the range is from 2mm to 4mm, and more preferably, any value is selected from the range of 2mm to 3mm. In addition, when it is less than the lower limit value of each range, it becomes difficult to secure a sufficient size for forming wrinkles in the non-joint portion jn. On the other hand, when it is greater than the upper limit value of each range, the stretchable sheet 8a and low elongation The fixation of the sex sheet 9at will weaken. Therefore, it is preferable to be included in the above-mentioned range. However, it is not limited to the above range.

又,針對形成上述第1部份9a1與第2部份9a2的形成處理或形成接合部j、j…的接合處理等是如後述。 In addition, the forming process for forming the first part 9a1 and the second part 9a2 or the bonding process for forming the bonding parts j, j... will be described later.

但是,在此所謂的「伸縮性」,即是一旦有拉伸的外力作用時,會朝著外力的作用方向大致彈性地伸長,並且在解除該外力時,大致彈性收縮的性質。又,雖然重複,但具有上述伸縮性的薄片即是上述的「伸縮性薄片8」。 However, the so-called "stretchability" refers to the property that when an external force of stretching is applied, it elastically expands in the direction in which the external force acts, and when the external force is relieved, it contracts substantially elastically. Although repeated, the sheet having the above-mentioned stretchability is the above-mentioned "stretchable sheet 8".

上述伸縮性薄片8是以滿足以下的條件為佳。亦即,短方向的尺寸是分別在上述短方向以25mm的全長均等把 持25mm的帶狀薄片的長方向兩端部的狀態,以1.0(N)的外力分別以上述兩端部為力點朝著長方向拉伸時的伸長率(%)成為50%~300%的範圍的任意值,並在解除上述外力收縮後不收縮而殘餘伸長變形率(%)成為0%~40%的範圍的任意值即可。又,更理想的是上述伸長率成為70%~200%的範圍的任意值,並且殘餘伸長變形率成為0%~30%的範圍的任意值即可。附帶一提,上述的伸長率(%)即是將以1.0(N)的外力拉伸時的帶狀薄片的長度L1減去拉伸前的無負載時之帶狀薄片長度的自然長度L0所成的減法值△L1(=L1-L0)以上述自然長度L0除後所成的除法值(=△L1/L0)的百分比表示值。又,上述的殘餘伸長變形率(%)是以從上述的外力拉伸時的長度L1減去上述自然長度L0所成的減法值△L1(=L1-L0)除以從上述1.0(N)的外力解除後的長度L2減去上述拉伸前的自然長度L0所成的減法值△L2(=L2-L0)的除法值(=△L2/△L1)的百分比表示值。 The above-mentioned stretchable sheet 8 preferably satisfies the following conditions. That is, the size in the short direction is equal to the total length of 25mm in the above short direction. The state of holding both ends of the 25mm ribbon sheet in the longitudinal direction, with an external force of 1.0 (N) using the two ends as the force point, the elongation (%) when stretched in the longitudinal direction becomes 50% to 300% An arbitrary value in the range of 0, and the residual elongation deformation rate (%) without shrinking after the above external force contraction is released may be any value in the range of 0% to 40%. Furthermore, it is more preferable that the above-mentioned elongation is an arbitrary value in the range of 70% to 200%, and the residual elongation deformation rate may be an arbitrary value in the range of 0% to 30%. Incidentally, the above-mentioned elongation (%) is obtained by subtracting the natural length L0 of the length of the strip-shaped sheet when stretched with an external force of 1.0 (N) minus the length of the strip-shaped sheet before unloading without stretching The resulting subtraction value ΔL1 (=L1-L0) is expressed as a percentage of the division value (=ΔL1/L0) obtained by dividing the above natural length L0. In addition, the above-mentioned residual elongation deformation rate (%) is the subtraction value ΔL1 (=L1-L0) obtained by subtracting the above-mentioned natural length L0 from the above-mentioned length L1 when the external force is stretched and divided by 1.0 (N) The percentage of the division value (=ΔL2/ΔL1) of the subtraction value ΔL2 (=L2-L0) of the subtraction value ΔL2 (=L2-L0) formed by the length L2 after the external force is released after subtracting the natural length L0 before stretching.

又,「低伸長性薄片9」是指伸長性較上述伸縮性薄片8低的薄片。亦即,預定大小拉伸的外力作用時的伸長率(%)是比上述伸縮性薄片8的伸長率(%)低的薄片。並且,上述低伸長性薄片9是以滿足以下的條件為佳。亦即,短方向的尺寸是分別在上述短方向以25mm的全長均等把持25mm的帶狀薄片的長方向兩端部的狀態,以1.0(N)的外力分別以上述兩端部為力點朝著長方向拉伸時的伸長率(%)成為0%~20%的範圍的任意值 即可。又,更理想的是上述伸長率成為0%~10%的範圍的任意值。 The "low-elongation sheet 9" refers to a sheet having lower extensibility than the above-mentioned stretchable sheet 8. That is, the elongation (%) when an external force for stretching at a predetermined size is applied is a sheet having a lower elongation (%) than the stretchable sheet 8 described above. In addition, it is preferable that the low-elongation sheet 9 satisfies the following conditions. That is, the dimension in the short direction is a state in which the two ends of the long strip in the long direction of the 25 mm ribbon sheet are equally held in the short direction with a total length of 25 mm, and the external force of 1.0 (N) is directed toward the two ends as a force point The elongation (%) when stretching in the longitudinal direction becomes any value in the range of 0% to 20% That's it. Furthermore, it is more preferable that the above-mentioned elongation is an arbitrary value in the range of 0% to 10%.

再者,上述伸縮性薄片8及低伸長性薄片9 的形態也可以是不織布,也可以是織布或薄膜。 Furthermore, the above-mentioned stretchable sheet 8 and low-elongation sheet 9 The form may be non-woven fabric, woven fabric or film.

針對可利用於伸縮性薄片8的不織布的具體例,可以例示如可對具有顯示大致彈性的熱塑性彈性體製纖維與顯示大致非彈性的熱塑性樹脂製纖維的不織布施以齒輪延伸處理等的適當延伸處理的不織布。亦即,藉上述延伸處理的進行,使不織布所包含的大致非彈性的熱塑性彈性體製纖維塑性變形,或將同一纖維彼此的接合點破壞等,可對阻礙熱塑性彈性體製纖維的大致彈性的伸縮變形困難的構造使得該不織布變化,藉此,發現該不織布的伸縮性而成為可作為伸縮性薄片8使用的狀態。 Specific examples of the nonwoven fabric that can be used for the stretchable sheet 8 include an appropriate extension treatment such as gear extension treatment that can be performed on a nonwoven fabric having thermoplastic elastic fibers exhibiting substantially elasticity and thermoplastic resin fibers exhibiting substantially inelasticity. Of nonwovens. That is, by performing the above-described stretching process, the substantially inelastic thermoplastic elastic fibers contained in the nonwoven fabric are plastically deformed, or the joints of the same fibers are broken, etc., and the elastic deformation of the thermoplastic elastic fibers that impede the elasticity of the thermoplastic elastic system can be inhibited. The difficult structure changes the non-woven fabric, and the stretchability of the non-woven fabric is found to be in a state that can be used as the stretchable sheet 8.

再者,作為大致彈性的熱塑性彈性體可例示如聚氨酯系彈性體、聚苯乙烯系彈性體、聚烯烴系彈性體、聚醯胺系彈性體等。又,大致非彈性的熱塑性樹脂製纖維可例示如含聚烯烴系樹脂的纖維等,另外作為聚烯烴系樹脂可例示如聚乙烯(PE)、聚丙烯(PP)、乙烯-α烯烴共聚物等。附帶一提,該例中,作為伸縮性薄片8是使用對具有聚氨酯系彈性體製纖維與PP纖維的混纖類型的不織布施以齒輪延伸的薄片。 In addition, examples of the substantially elastic thermoplastic elastomer include polyurethane-based elastomers, polystyrene-based elastomers, polyolefin-based elastomers, and polyamide-based elastomers. In addition, the substantially inelastic thermoplastic resin fiber can be exemplified by fibers containing polyolefin-based resins, and the polyolefin-based resin can be exemplified by polyethylene (PE), polypropylene (PP), ethylene-α-olefin copolymer, etc. . Incidentally, in this example, as the stretchable sheet 8, a gear-extended sheet is applied to a non-woven fabric of a mixed fiber type having polyurethane-based elastic system fibers and PP fibers.

又,針對可利用於低伸長性薄片9的不織布的具體例是可例示如PE、PP、聚酯、聚醯胺等的纖維所成的紡黏型不織布、熔噴型不織布、層疊紡黏型不織布、 熔噴型不織布與紡黏型不織布而成的所謂SMS不織布、通氣型不織布等。再者,對於纖維的構造可不限於如上述任意的單一熱塑性樹脂所成的單獨纖維。例如,芯材為PP而鞘材為PE的芯鞘構造的複合纖維,也可以是該等以外構造的纖維。附帶一提,該例中,低伸長性薄片9是使用PP纖維的紡黏型不織布。 In addition, specific examples of the nonwoven fabric that can be used for the low-elongation sheet 9 are spunbond nonwoven fabric, meltblown nonwoven fabric, and laminated spunbond type that can be exemplified by fibers such as PE, PP, polyester, and polyamide. Non-woven, The so-called SMS non-woven fabric and vented non-woven fabric made of melt-blown non-woven fabric and spun-bonded non-woven fabric. Furthermore, the structure of the fibers may not be limited to the individual fibers made of any single thermoplastic resin as described above. For example, a composite fiber of a core-sheath structure in which the core material is PP and the sheath material is PE may be fibers of other structures. Incidentally, in this example, the low-elongation sheet 9 is a spunbonded non-woven fabric using PP fibers.

如第1B圖及第2圖表示,在以上雙重構造的外包裝薄片7的肌膚側面,即內層薄片8的肌膚側面的寬方向的中央位置,上述吸收性主體3是以使彼此的長方向一致的狀態安裝。上述的安裝是至少將吸收性主體3的長方向的各端部3e、3e與外包裝薄片7進行接合,該例是如第2圖表示,在各端部3e、3e分別將接合吸收性主體3與外包裝薄片7的接合部j3、j3形成為大致T字型。亦即,各接合部j3、j3分別具有在紙尿片1的寬方向較長的橫長帶狀部份j3W及以該橫長帶狀部份j3W的上述寬方向的中央部為起點而向***部7c一側延伸的縱長帶狀部份j3L。並且,藉此,可有效避免吸收性主體3與外包裝薄片7彼此受到所需以上的彼此限制。但是,上述接合部j3的形狀不受該等任何的限制。例如,也可以在T字型的一對接合部j3、j3彼此之間的位置進一步追設點狀的接合部j3C,或者也可在各端部3e、3e分別形成跨吸收性主體3的各端部3e、3e的大致全區域之寬廣的大致矩形形狀的接合部(未圖示),也可形成現在所述形狀以外形狀的接合部。另外,該例中,上述接合部j3的形成雖是以熱熔 融接著劑的接著來實現,但不限於此,例如也可以進行熔敷。 As shown in FIG. 1B and FIG. 2, at the center position in the width direction of the skin side of the outer packaging sheet 7 of the above dual structure, that is, the skin side of the inner layer sheet 8, the absorbent bodies 3 are oriented in the longitudinal direction of each other. Install in a consistent state. In the above-mentioned installation, at least the longitudinal ends 3e, 3e of the absorbent body 3 are joined to the outer packaging sheet 7. In this example, as shown in FIG. 2, the absorbent bodies are joined to the respective ends 3e, 3e. 3 The junction portions j3 and j3 with the outer packaging sheet 7 are formed in a substantially T shape. That is, each of the joint portions j3 and j3 has a horizontally long strip-shaped portion j3W that is long in the width direction of the diaper 1 and the widthwise central portion of the horizontally long strip-shaped portion j3W is used as a starting point. A longitudinal strip-shaped portion j3L extending on the side of the lower crotch 7c. In addition, this can effectively prevent the absorbent body 3 and the outer packaging sheet 7 from being restricted more than necessary. However, the shape of the above-mentioned joint j3 is not limited to these. For example, a point-shaped joint j3C may be further traced between the T-shaped pair of joints j3, j3, or each of the ends 3e, 3e may be formed across the absorbent body 3, respectively. It is also possible to form a joint portion (not shown) having a wide and generally rectangular shape over substantially the entire area of the end portions 3e and 3e. In addition, in this example, although the formation of the junction j3 described above The fusion of the adhesive is achieved, but it is not limited to this, and for example, fusion may be performed.

並且,該例中,上述吸收性主體3與外包裝薄片7的安裝是在使外包裝薄片7之寬方向的伸長狀態比固定上述外層薄片9及內層薄片8時之內層薄片8的伸長狀態(相當於後述的「第1伸長狀態」)緩和的伸長狀態(相當於後述的「第2伸長狀態」)進行。並且,藉此,最終可減輕成為褲子型的紙尿片1時在吸收性主體3產生的皺褶。其結果,可有效抑制吸收性主體3的吸收性的降低及漏尿。附帶一提,對於以此緩和後的伸長狀態將吸收性主體3安裝於外包裝薄片7則是在此後的製造生產線LM的說明中敘述。 Moreover, in this example, the attachment of the absorbent body 3 to the outer sheet 7 is such that the width of the outer sheet 7 is longer than the inner sheet 8 when the outer sheet 9 and the inner sheet 8 are fixed. The state (corresponding to the "first stretched state" described later) is relaxed in the stretched state (corresponding to the "second stretched state" described below). In addition, this can ultimately reduce wrinkles generated in the absorbent body 3 when becoming a pants-type diaper 1. As a result, it is possible to effectively suppress a decrease in absorbability of the absorbent body 3 and urine leakage. Incidentally, attaching the absorbent body 3 to the outer packaging sheet 7 in this relaxed and extended state will be described in the description of the subsequent manufacturing line LM.

並且,安裝有如第1B圖的吸收性主體3的外包裝薄片7是在***部7c彎折為二使得腹側部7f與背側部7b重疊。並且,在該重疊的狀態下,以寬方向的各端部7eW分別接合腹側部7f與背側部7b,藉此成為形成有如第1A圖表示的胴周圍開口部HB與一對腳周圍開口部HL、HL的褲子型的紙尿片1的形態。 In addition, the outer packaging sheet 7 to which the absorbent body 3 as shown in FIG. 1B is attached is folded into two at the lower crotch portion 7c so that the ventral portion 7f overlaps the back portion 7b. In this overlapped state, each of the width-direction end portions 7eW joins the ventral portion 7f and the dorsal portion 7b, respectively, thereby forming a pericarcass opening HB and a pair of peripherical openings as shown in FIG. 1A. The shape of the pants-type diaper 1 of the parts HL and HL.

<<<紙尿片1的製造生產線LM>>> <<<Manufacturing Production Line LM of Diaper 1>>>

第4A圖為製造上述紙尿片1的製造生產線LM的概略側視圖。又,第4B圖與第4A圖對應,以概略上視圖表示製造紙尿片1的狀況。 FIG. 4A is a schematic side view of a manufacturing line LM for manufacturing the above-mentioned diaper 1. In addition, FIG. 4B corresponds to FIG. 4A, and shows the state of manufacturing the diaper 1 in a schematic top view.

該製造生產線LM在最初生成紙尿片1的基 材薄片7a(相當於複合薄片)。並且,將上述基材薄片7a藉著適當的搬運機構CV、CV…等,沿著預定的搬運方向連續地搬運,但在上述搬運中,對該等基材薄片7a施以衝壓或零組件的安裝等的種種加工,且每次基材薄片7a會依序改變狀態,最終製造出第1A圖的狀態的紙尿片1。附帶一提,如第4B圖表示,該例中,基本上基材薄片7a是以所謂橫向流動的樣態搬運。亦即,一邊使得相當於紙尿片1寬方向的方向與搬運方向一致,並以將成為紙尿片1的部份成一列排列於搬運方向的狀態,搬運基材薄片7a。 The manufacturing line LM initially produced the base of the diaper 1 Sheet 7a (equivalent to a composite sheet). Furthermore, the above-mentioned base material sheet 7a is continuously conveyed along a predetermined conveying direction by an appropriate conveying mechanism CV, CV, etc. However, in the above-mentioned conveyance, the base material sheet 7a is subjected to stamping or parts Various processes such as mounting, and the state of the substrate sheet 7a are sequentially changed every time, and finally the diaper 1 in the state of FIG. 1A is manufactured. Incidentally, as shown in FIG. 4B, in this example, the base material sheet 7a is basically transported in a so-called lateral flow state. That is, while the direction corresponding to the width direction of the diaper 1 coincides with the conveyance direction, the base sheet 7a is conveyed in a state where the portions that become the diaper 1 are arranged in a row in the conveyance direction.

供上述搬運的搬運機構CV是例如使用搬運輥或在成為載放面的皮帶面具有吸附保持功能的吸附帶式輸送機、以上下成對配置的環狀帶彼此之間為基材薄片7a的搬運路徑的皮帶式輸送機等。 The conveying mechanism CV for conveying is, for example, a conveying roller or a suction belt conveyor having a suction holding function on a belt surface serving as a placement surface, and the endless belts arranged in pairs above and below are the base material sheets 7a. Conveyor belt conveyor, etc.

製造生產線LM上,在搬運方向排列配置有可進行上述種種加工處理的複數處理部10、20…。該例中,作為複數處理部10、20…,具有外包裝薄片生成處理部10、腳周圍開口部形成處理部20、外包裝薄片收縮處理部30、吸收性主體安裝處理部40、二折處理部50、端密封處理部60、分割處理部70。 On the manufacturing line LM, a plurality of processing units 10, 20, ... that can perform the above-mentioned various kinds of processing are arranged side by side in the conveying direction. In this example, as the plural processing sections 10, 20..., there are an outer sheet generation processing section 10, an opening around the foot forming processing section 20, an outer sheet shrinking processing section 30, an absorbent body mounting processing section 40, and a double folding process The unit 50, the end seal processing unit 60, and the division processing unit 70.

以下,雖針對各處理部10~70進行說明,但以下的說明中,設定在製造生產線LM上的上述搬運方向稱為「MD方向」。又,稱與MD方向正交的方向的兩方向之中的一方為「CD方向」,另一方為「Z方向」。並 且,CD方向是與基材薄片7a的寬方向平行,第4A圖中,朝向貫穿紙面的方向。又,Z方向是與基材薄片7a的厚度方向平行。並且,如後述即可得知,但MD方向是相當於「伸縮方向」和「預定方向」的兩者,CD方向則是相當於「與伸縮方向交叉的方向」和「與預定方向交叉的方向」的兩者。 Hereinafter, although each processing part 10-70 is demonstrated, in the following description, the said conveyance direction set on the manufacturing line LM is called "MD direction." In addition, one of the two directions orthogonal to the MD direction is referred to as the "CD direction" and the other is referred to as the "Z direction". and In addition, the CD direction is parallel to the width direction of the base sheet 7a, and in FIG. 4A, it is a direction penetrating the paper surface. In addition, the Z direction is parallel to the thickness direction of the base material sheet 7a. In addition, as will be described later, the MD direction is equivalent to both the "telescopic direction" and the "predetermined direction", and the CD direction is equivalent to the "direction intersecting the telescopic direction" and "direction intersecting the predetermined direction" "Of both.

(1)外包裝薄片生成處理部10 (1) Packaging sheet generation processing section 10

第5圖是成為最初處理部的外包裝薄片生成處理部10的概略側視圖。 FIG. 5 is a schematic side view of the packaging sheet generation processing unit 10 that becomes the first processing unit.

該處理部10是使用加工裝置11與接合裝置15,生成與MD方向連續而成的外包裝薄片7的連續薄片7a(以下,僅稱為外包裝薄片7a)作為紙尿片1的基材薄片7a。 This processing unit 10 is a continuous sheet 7a (hereinafter, simply referred to as an outer packaging sheet 7a) that generates an outer packaging sheet 7 that is continuous with the MD direction using a processing device 11 and a bonding device 15 as a base sheet of the diaper 1 7a.

亦即,前者的加工裝置11是一邊沿著MD方向搬運成為外層薄片9的低伸長性薄片9的連續薄片9a(以下,僅稱為「低伸長性薄片9a」),並相對於同一薄片9a在與MD方向交互地形成上述第1部份9a1與第2部份9a2(相當於「準備步驟」。 That is, the former processing device 11 is a continuous sheet 9a (hereinafter, simply referred to as "low-elongation sheet 9a") that conveys the low-elongation sheet 9 that becomes the outer layer sheet 9 in the MD direction, and is relative to the same sheet 9a The first part 9a1 and the second part 9a2 are formed alternately with the MD direction (corresponding to a "preparation step").

另一方面,後者的接合裝置15是將使得伸縮方向沿著MD方向搬運成為內層薄片8的伸縮性薄片8的連續薄片8a(以下,僅稱為「伸縮性薄片8a」),從大致自然長度的狀態朝MD方向伸長至預定的伸長倍率為止,並以此伸長狀態將上述低伸長性薄片9a從厚度方向重疊接合 於同一薄片8a(相當於「固定步驟」)。並且,藉此,生成外包裝薄片7a。以下,針對各裝置11、15詳細說明。 On the other hand, the latter joining device 15 is a continuous sheet 8a (hereinafter, simply referred to as "stretchable sheet 8a") that conveys the stretchable sheet 8 into the inner layer sheet 8 in the stretchable direction in the MD direction. The state of length is extended in the MD direction to a predetermined elongation ratio, and the low-elongation sheet 9a is overlapped and joined from the thickness direction in this extended state In the same sheet 8a (equivalent to "fixing step"). And, by this, the outer packaging sheet 7a is produced. Hereinafter, each device 11, 15 will be described in detail.

(1)-1加工裝置11 (1)-1 processing device 11

第6圖為部份放大表示之加工裝置11的概略側視圖。又,第7圖為第6圖中的VII-VII箭頭方向圖。 FIG. 6 is a schematic side view of the processing device 11 partially enlarged. FIG. 7 is a VII-VII arrow direction diagram in FIG. 6.

如第6圖表示,加工裝置11具有:沿著MD方向搬運低伸長性薄片9a的搬運機構12,及波形輥機構13。 As shown in FIG. 6, the processing device 11 includes a conveying mechanism 12 that conveys the low-elongation sheet 9 a in the MD direction, and a wave roller mechanism 13.

搬運機構12是例如具有沿著CD方向圍繞轉軸旋轉的複數搬運輥12R、12R…,各搬運輥12R分別是沿著低伸長性薄片9a的搬運路徑配置。又,各搬運輥12R的周速值V12R(m/分鐘)是與自上游步驟搬運而來的低伸長性薄片9a的搬運速度值(m/分鐘)大概同值。並且,藉此,該搬運機構12可以大致不使低伸長性薄片9a伸長且不致鬆弛程度的貼合狀態進行搬運。 The conveyance mechanism 12 has, for example, a plurality of conveyance rollers 12R, 12R,... That rotate around the rotation axis in the CD direction, and each conveyance roller 12R is arranged along the conveyance path of the low-elongation sheet 9a. In addition, the peripheral speed value V12R (m/min) of each conveying roller 12R is approximately the same as the conveying speed value (m/min) of the low-elongation sheet 9a conveyed from the upstream step. In addition, by this, the transport mechanism 12 can be transported in a bonded state where the low-elongation sheet 9a is not substantially stretched and does not slacken.

另一方面,如同第6圖表示,波形輥機構13具有一邊使彼此的外圍面相對並沿著CD方向的圍繞轉軸旋轉的上下一對的波形輥13u、13d。並且,在各波形輥13u、13d的外圍面,分別沿著旋轉方向交互形成山部13m與谷部13v,並且各山部13m及各谷部13v是分別沿著CD方向形成。又,如第6圖中的放大圖表示,在各波形輥13u、13d旋轉時,將彼此的山部13m與谷部13v以若干的間隙咬合使得一方的波形輥13u(13d)的山部 13m進入另一方波形輥13d(13u)的谷部13v。並且,該旋轉中,低伸長性薄片9a沿著MD方向通過波形輥13u、13d彼此之間。 On the other hand, as shown in FIG. 6, the corrugated roller mechanism 13 has a pair of corrugated rollers 13 u and 13 d that rotate on the rotation axis along the CD direction while facing each other's peripheral surfaces. Further, on the outer peripheral surfaces of the corrugated rollers 13u and 13d, mountain portions 13m and valley portions 13v are alternately formed along the rotation direction, and the mountain portions 13m and the valley portions 13v are formed along the CD direction, respectively. In addition, as shown in the enlarged view in FIG. 6, when the corrugated rollers 13u and 13d rotate, the mountain portion 13m and the valley portion 13v are engaged with a slight gap so that the mountain portion of the one corrugated roller 13u (13d) 13m enters the valley portion 13v of the other wave roller 13d (13u). During this rotation, the low-elongation sheet 9a passes between the wave rollers 13u and 13d along the MD direction.

因此,該通過中的低伸長性薄片9a是藉著一方波形輥13d(13u)中彼此相鄰的山部13m、13m彼此與進入該山部13m、13m彼此之間的谷部13v的另一方波形輥13u(13d)的山部13m,變形成三點彎曲狀(第6圖)。並且,此時,在低伸長性薄片9a中與一方波形輥13d(13u)的山部13m的頂面抵接的部份9a2是與該頂面大致不能相對移動地抵接,藉此,大致不延伸地成為上述第2部份9a2,又,同樣在同薄片9a中與另一方波形輥13u(13d)的山部13m的頂面抵接的部份9a2也是與該頂面大致不能相對移動地抵接,因此,大致不延伸地成為上述第2部份9a2。但是,該等兩個第2部份9a2、9a2彼此之間的部份9a1是依據上述山部13m的進入量而延伸,藉此,該部份9a1是成為上述的第1部份9a1。並且,其結果,低伸長性薄片9a在MD方向交互形成有第1部份9a1與第2部份9a2,然後,同薄片9a藉著搬運輥12R,以貼合的狀態送至接合裝置15。 Therefore, the low-elongation sheet 9a in the passage is the other one of the mountain portions 13m, 13m adjacent to each other in the corrugated roller 13d (13u) and the valley portion 13v that enters between the mountain portions 13m, 13m The mountain portion 13m of the corrugated roller 13u (13d) is deformed into a three-point curved shape (Figure 6). Also, at this time, the portion 9a2 of the low-elongation sheet 9a that is in contact with the top surface of the mountain portion 13m of the one corrugated roller 13d (13u) is in contact with the top surface so as to be relatively immovable, thereby substantially The second portion 9a2 does not extend as described above. Also, the portion 9a2 that is in contact with the top surface of the mountain portion 13m of the other wave roller 13u (13d) in the same sheet 9a is also substantially immovable relative to the top surface. Ground contact, therefore, the second portion 9a2 is substantially not extended. However, the portion 9a1 between the two second portions 9a2 and 9a2 extends according to the amount of entry of the mountain portion 13m, whereby the portion 9a1 becomes the first portion 9a1 described above. In addition, as a result, the first portion 9a1 and the second portion 9a2 are alternately formed in the MD direction of the low-elongation sheet 9a, and then the same sheet 9a is sent to the joining device 15 in a bonded state by the conveying roller 12R.

再者,當然,谷部13v的旋轉方向的形成間距Pv(在相當於山部13m頂面的位置的間距Pv)是與山部13m的旋轉方向的形成間距Pm(山部13m的頂面的間距Pm)同值,又,山部13m的形成間距Pm在上下波形輥13d、13d彼此為彼此同值。此外,該例中,該等一對 波形輥13u、13d彼此一邊旋轉,使得另一方的輥13u(13d)的山部13m的旋轉方向的中央位置定位於一方的輥13d(13u)中的旋轉方向相鄰的山部13m與山部13m之間的中間位置。藉此,如第3圖表示,上述第2部份9a2是在MD方向以預定的間距P9a2所形成。 Furthermore, of course, the formation pitch Pv (the pitch Pv at a position corresponding to the top surface of the mountain 13m) in the rotation direction of the valley 13v is the formation pitch Pm (the top surface of the mountain 13m) in the rotation direction of the mountain 13m The pitch Pm) has the same value, and the forming pitch Pm of the mountain portion 13m has the same value as the upper and lower wave rollers 13d and 13d. In addition, in this example, the pair The corrugated rollers 13u and 13d rotate on one side so that the center position of the rotation direction of the mountain portion 13m of the other roller 13u (13d) is positioned on the mountain portion 13m adjacent to the rotation direction of the one roller 13d (13u) and the mountain portion The middle position between 13m. Thus, as shown in FIG. 3, the second portion 9a2 is formed at a predetermined pitch P9a2 in the MD direction.

相關山部13m之旋轉方向的形成間距Pm是例如從0.5mm~3.0mm的範圍選擇任意值,以0.7mm~2.0mm的範圍的任意值較佳,並以1.0mm~1.5mm的範圍的任意值更佳。並且,只要進入相關範圍,即可在外層薄片9a形成表面看來舒適的大小的皺褶。 The formation pitch Pm of the rotation direction of the relevant mountain portion 13m is, for example, any value selected from the range of 0.5mm to 3.0mm, preferably any value in the range of 0.7mm to 2.0mm, and any value in the range of 1.0mm to 1.5mm The value is better. Moreover, as long as it is within the relevant range, wrinkles of a size that is comfortable on the surface can be formed on the outer sheet 9a.

但是,該例中,如第7圖表示,以CD方向(相當於「與預定方向交叉的方向」及「沿著轉軸的方向」)的預定位置Pk、Pk…將一對波形輥13u、13d之中的一方的波形輥13u的山部13m形成缺口。並藉此,山部13m為非連續設置,該理由是如下述。 However, in this example, as shown in FIG. 7, a pair of corrugated rollers 13u, 13d are placed at predetermined positions Pk, Pk in the CD direction (equivalent to the "direction crossing the predetermined direction" and the "direction along the rotation axis"). The mountain portion 13m of one of the wave rollers 13u is notched. The reason for this is that the mountain portion 13m is provided discontinuously. The reason is as follows.

首先,該例中,由於是使用PP纖維的不織布作為低伸長性薄片9a,因此無須將山部13m部份地形成缺口,亦即,即使使用完全無缺口之山部13m的一對波形輥13u、13d,大致不會發現低伸長性薄片9a的伸縮性。因此,即使在第1部份9a1及第2部份9a2的形成後,低伸長性薄片9a仍可依然維持著伸長性低的狀態,即具有伸長性低的薄片的功能。 First, in this example, since the PP fiber non-woven fabric is used as the low-elongation sheet 9a, there is no need to partially cut the mountain portion 13m, that is, even if a pair of wave rollers 13u with a completely unnotched mountain portion 13m are used And 13d, the stretchability of the low-elongation sheet 9a is hardly observed. Therefore, even after the formation of the first portion 9a1 and the second portion 9a2, the low-elongation sheet 9a can maintain a state of low extensibility, that is, a function of a low-elongation sheet.

但是,根據場合,作為低伸長性薄片9a,也可加入於PP纖維使用含適當彈性體製纖維的薄片。並且,此 時,一旦使用無缺口之跨CD方向全長的完全連續的山部13m的波形輥13u、13d時,同薄片9a發現有伸縮性,其結果,即不能維持伸長性低的狀態。 However, depending on the occasion, as the low-elongation sheet 9a, a sheet containing fibers of an appropriate elastic system may be added to the PP fiber. And, this In this case, when the corrugated rollers 13u and 13d of a completely continuous mountain portion 13m across the entire length in the CD direction without gaps were used, the same sheet 9a was found to have stretchability, and as a result, the state of low stretchability could not be maintained.

亦即,藉上述三點彎曲狀的延伸處理,使同薄片9a中的大致非彈性的PP纖維塑性變形時,完全伸展的PP纖維成為阻礙彈性體製纖維之大致彈性的伸縮變形的狀態。如此一來,以後,同薄片9a會大致僅根據彈性體製纖維成為可自由伸縮變形的狀態,即成為發現伸縮性的狀態。 That is, when the substantially inelastic PP fibers in the same sheet 9a are plastically deformed by the above-mentioned three-point bending stretching process, the fully stretched PP fibers are in a state of hindering the substantially elastic expansion and contraction deformation of the elastic system fibers. As a result, in the future, the same sheet 9a will be in a state of being freely stretchable and deformable based on the elastic system, that is, in a state where stretchability is found.

因此,該例是以對不論任何組成之低伸長性薄片9a皆可抑制波形輥機構13的通過後所引起之上述伸縮性的發現為目的,如第7圖表示,使一對波形輥13u、13d中的一方波形輥13u的山部13m在CD方向的預定位置Pk、Pk…缺口,藉此非連續設置該山部13m。亦即,如上述,在該預定位置Pk不存在有山部13m,在同位置Pk不進行上述的三點彎曲狀的延伸處理,結果,至少在該位置Pk不會發現有伸縮性,可抑制低伸長性薄片9a整體之伸縮性的發現。 Therefore, the purpose of this example is to find the above-mentioned stretchability caused by the passage of the corrugated roller mechanism 13 regardless of the low-elongation sheet 9a of any composition. As shown in FIG. 7, a pair of corrugated rollers 13u, The mountain portion 13m of the one corrugated roller 13u in 13d is notched at predetermined positions Pk, Pk... in the CD direction, whereby the mountain portion 13m is discontinuously provided. That is, as described above, there is no mountain portion 13m at the predetermined position Pk, and the above-mentioned three-point bending extension process is not performed at the same position Pk. As a result, at least the position Pk is not found to be stretchable and can be suppressed Discovery of the overall stretchability of the low-elongation sheet 9a.

附帶一提,針對另一方的波形輥13d,也可以如第7圖表示跨CD方向連續設置山部13m,也可非連續設置。但是,連續設置山部13m,無需施以使得山部13m非連續的加工,因此可獲得成本的刪減。 Incidentally, as for the other corrugated roller 13d, as shown in FIG. 7, the mountain portion 13m may be continuously provided across the CD direction, or may be provided discontinuously. However, since the mountain portion 13m is continuously provided, it is not necessary to perform processing to make the mountain portion 13m discontinuous, so cost reduction can be obtained.

又,較理想的是在上下一對波形輥13u、13d中的至少一方或雙方的波形輥13u、13d,內置加熱器,藉此,可調整波形輥13u、13d的山部13m的溫度。並 且,如上述,介由山部13m的加熱使低伸長性薄片9a軟化,因此可有效防止延伸時所引起的第2部份9a2的斷裂。再者,加熱溫度的調整參考值為可例示山部13m的溫度為25℃~40℃的範圍的任意值。 In addition, it is preferable that at least one or both of the pair of upper and lower corrugated rollers 13u, 13d have a built-in heater in the corrugated rollers 13u, 13d, whereby the temperature of the mountain portion 13m of the corrugated rollers 13u, 13d can be adjusted. and Also, as described above, the low-elongation sheet 9a is softened by the heating of the mountain portion 13m, so that the breakage of the second portion 9a2 caused by elongation can be effectively prevented. In addition, the reference value for adjusting the heating temperature is an arbitrary value that can exemplify that the temperature of the mountain 13m is in the range of 25°C to 40°C.

另外,根據場合,以和上述相同的目的,如第5圖表示,也可較波形輥機構13更在MD方向上游側的位置配置預熱輥14a、14b。預熱輥14a、14b也是沿著CD方向的轉軸周圍旋轉的輥,但是在同一輥14a、14b的內部設有加熱器,可藉同加熱器將輥14a、14b的外圍面加熱。並且,低伸長性薄片9a藉著以捲繞在預熱輥14a、14b的外圍面的狀態使得同一輥14a、14b旋轉,朝著MD方向搬運,但在此捲繞的期間,低伸長性薄片9a被加熱。加熱溫度調整的參考值為可例示同一輥14a、14b的外圍面溫度為25℃~40℃的範圍的任意值。再者,該第5圖的例中,雖配置有兩個預熱輥14a、14b,並對該等兩個預熱輥14a、14b的外圍面掛設S字型的低伸長性薄片9a,但不為該等所限制。 In addition, depending on the occasion, for the same purpose as described above, as shown in FIG. 5, the preheating rollers 14 a and 14 b may be arranged more upstream of the wave roller mechanism 13 in the MD direction. The preheating rollers 14a and 14b are also rollers rotating around the rotation axis in the CD direction. However, heaters are provided inside the same rollers 14a and 14b, and the peripheral surfaces of the rollers 14a and 14b can be heated by the heater. In addition, the low-elongation sheet 9a is wound around the outer surface of the preheating rollers 14a, 14b, and the same rollers 14a, 14b are rotated to be transported in the MD direction. However, during the winding, the low-elongation sheet 9a 9a is heated. The reference value for the heating temperature adjustment is an arbitrary value that exemplifies that the temperature of the outer peripheral surface of the same rollers 14a and 14b is in the range of 25°C to 40°C. Furthermore, in the example of FIG. 5, although two preheating rollers 14a, 14b are arranged, an S-shaped low-elongation sheet 9a is hung on the outer peripheral surface of the two preheating rollers 14a, 14b. But it is not restricted by these.

(1)-2接合裝置15 (1)-2 Joining device 15

如同第5圖表示,接合裝置15具有:夾輥機構16,及較同機構16配置在MD方向的下游的超音波熔敷裝置17。並且,該接合裝置15是將上游步驟以大致自然長度的狀態所搬運的伸縮性薄片8a,在夾輥機構16與超音波熔敷機構17之間朝著MD方向伸長至上述的伸長倍率為 止,並且,一邊維持著該伸長狀態,並藉著超音波熔敷裝置17將同薄片8a熔敷於上述波形輥機構13所傳送的低伸長性薄片9a後接合。 As shown in FIG. 5, the bonding device 15 includes a nip roller mechanism 16 and an ultrasonic welding device 17 arranged downstream of the MD 16 in the MD direction. In addition, the joining device 15 is a stretchable sheet 8a conveyed in a state of approximately natural length in an upstream step, and is stretched between the nip roller mechanism 16 and the ultrasonic welding mechanism 17 in the MD direction to the above-mentioned elongation ratio In addition, while maintaining this extended state, the same sheet 8a is welded to the low-elongation sheet 9a conveyed by the wave roller mechanism 13 by the ultrasonic welding device 17, and then joined.

夾輥機構16具有在沿著CD方向的轉軸周圍旋轉的一對夾輥16R、16R。並且,以一對夾輥16R、16R彼此的外圍面一邊夾入從上游步驟連續所搬運的伸縮性薄片8a,並藉著作為驅動源的伺服馬達(未圖示)賦予驅動力而驅動旋轉,使同薄片8a以和夾輥16R、16R的周速值V16R大致同值的搬運速度值朝著超音波熔敷裝置17送出。 The nip roller mechanism 16 has a pair of nip rollers 16R, 16R that rotate around a rotation axis along the CD direction. In addition, a pair of pinch rollers 16R, 16R are sandwiched between the outer peripheral surfaces while sandwiching the stretchable sheet 8a continuously conveyed from the upstream step, and are driven and rotated by a driving force provided by a servo motor (not shown) as a driving source. The same sheet 8a is sent toward the ultrasonic welding device 17 at a conveying speed value substantially equal to the peripheral speed value V16R of the nip rollers 16R, 16R.

另一方面,超音波熔敷裝置17具有:例如以20kHz~35kHz的預定頻率且1微米~30微米的預定振幅朝著法線方向振動的振動面17hs的發聲器17h,及以外圍面承受發聲器17h的上述振動面17hs的振動的鑽輥17a。鑽輥17a是在沿著CD方向的轉軸周圍可旋轉地被支撐著,並且,從作為驅動源的伺服馬達(未圖示)賦予驅動力而驅動旋轉。又,在鑽輥17a的外圍面上,以相對於同外圍面大致不相對滑動的例如45°以上的捲繞角度捲繞從波形輥機構13所傳送的低伸長性薄片9a,及從夾輥機構16所傳送的伸縮性薄片8a的兩者。 On the other hand, the ultrasonic welding device 17 has, for example, a sound generator 17h of a vibration surface 17hs that vibrates toward the normal direction at a predetermined frequency of 20 kHz to 35 kHz and a predetermined amplitude of 1 μm to 30 μm, and receives sound from the peripheral surface The vibrating drill roll 17a of the above-mentioned vibrating surface 17hs of the device 17h. The drill roller 17a is rotatably supported around a rotation axis along the CD direction, and is driven to rotate by applying a driving force from a servo motor (not shown) as a driving source. In addition, on the outer peripheral surface of the drill roller 17a, the low-elongation sheet 9a conveyed from the corrugated roller mechanism 13 is wound at a winding angle of not more than 45° relative to the same outer peripheral surface, and from the nip roller. Both of the stretchable sheet 8a conveyed by the mechanism 16 are.

因此,藉鑽輥17a的驅動旋轉,以和鑽輥17a的周速值V17a相同的搬運速度值V8a9a,沿著同一輥17a的外圍面搬運伸縮性薄片8a與低伸長性薄片9a的兩者。 Therefore, both the stretchable sheet 8a and the low-elongation sheet 9a are transported along the outer peripheral surface of the same roll 17a by the driving rotation of the drill roll 17a at the same transport speed value V8a9a as the peripheral speed value V17a of the drill roll 17a.

再者,上述搬運速度值V8a9a是如上述為夾輥機構 16的夾輥16R的周速值V16R之伸長倍率倍的大小。因此,對於伸縮性薄片8a,可伸長至上述伸長倍率而可捲繞於鑽輥17a的外圍面。另一方面,同搬運速度值V8a9a是與低伸長性薄片9a的搬運輥12R的周速值V12R大致同值。因此,對於低伸長性薄片9a則大致不會伸長,並以不鬆弛程度張貼的狀態捲繞在鑽輥17a的外圍面上。 In addition, the conveying speed value V8a9a is the pinch roller mechanism as described above The nip roller 16R of 16 has a peripheral speed value V16R that is an extension magnification factor. Therefore, the stretchable sheet 8a can be stretched to the above-mentioned stretch ratio and can be wound around the outer peripheral surface of the drill roll 17a. On the other hand, the same conveying speed value V8a9a is substantially the same value as the peripheral speed value V12R of the conveying roller 12R of the low-elongation sheet 9a. Therefore, the low-elongation sheet 9a hardly stretches, and is wound around the outer peripheral surface of the drill roll 17a in a state where it is not slack.

並藉此,伸長至伸長倍率為止的伸縮性薄片8a與張貼狀態的低伸長性薄片9a是在鑽輥17a的外圍面上彼此重疊於厚度方向,並在該重疊後的狀態,藉鑽輥17a的旋轉,在該等薄片8a、9a通過發聲器17h的配置位置時,對同薄片8a、9a從發聲器17h的振動面17hs投入超音波振動能而發熱熔融,藉此,以如上述的複數接合部j、j…呈非連續分散的接合圖案接合兩薄片8a、9a,生成外包裝薄片7a。並且,鑽輥17a將上述外包裝薄片7a朝著MD方向的下游送出,藉以使所送出的外包裝薄片7a,以和該周速值V17a大致同值的搬運速度值V8a9a朝著MD方向下游的腳周圍開口部形成處理部20搬運。 And by this, the stretchable sheet 8a stretched to the stretch ratio and the low stretch sheet 9a in the posted state are overlapped with each other in the thickness direction on the outer peripheral surface of the drill roll 17a, and in this overlapped state, the drill roll 17a When the sheets 8a and 9a pass through the arrangement position of the sound generator 17h, the ultrasonic vibration energy is injected into the same sheet 8a and 9a from the vibration surface 17hs of the sound generator 17h to generate heat and melt. The joining portions j, j... join the two sheets 8a, 9a in a discontinuously dispersed joining pattern to produce an outer sheet 7a. Then, the drill roller 17a feeds the outer packaging sheet 7a toward the downstream in the MD direction, so that the outer packaging sheet 7a is sent toward the downstream in the MD direction at a conveying speed value V8a9a that is substantially the same as the peripheral speed value V17a The opening around the foot forms the processing section 20 and is transported.

再者,該例中,發聲器17h的振動面17hs是以振動方向為法線方向的平面。另一方面,在鑽輥17a的外圍面,以上述接合圖案形成接合部j、j…的應以對應上述接合圖案的配置圖案配置有複數突部17at、17at…(參閱在旋轉方向將第8圖的鑽輥17a的外圍面展開表示的放大圖)。並且,在低伸長性薄片9a中,將發聲器17h的振動面17hs選擇性抵接在與上述突部17at的頂面抵接的 部份,藉此投入超音波振動能而熔融,藉此,在與各突部17at的頂面對應的位置分別形成接合部j、j…。又,該例中,接合圖案是如已說明從鋸齒圖案(第3圖),如第8圖表示,也在鑽輥17a的外圍面以鋸齒圖案設有上述複數的突部17at、17at…。另外,由於進行橫向流動,紙尿片1的寬方向是沿著MD方向及鑽輥17a的旋轉方向。 In this example, the vibration surface 17hs of the sound generator 17h is a plane whose vibration direction is the normal direction. On the other hand, on the outer peripheral surface of the drill roll 17a, where the joints j, j... are formed in the above-mentioned joint pattern, a plurality of protrusions 17at, 17at... should be arranged in an arrangement pattern corresponding to the above-mentioned joint pattern (see (The enlarged view of the outer surface of the drill roller 17a shown in the drawing). In addition, in the low-elongation sheet 9a, the vibration surface 17hs of the sound generator 17h is selectively abutted on the top surface of the protrusion 17at The part is melted by inputting ultrasonic vibration energy, thereby forming joints j, j, ... at positions corresponding to the top surfaces of the protrusions 17at, respectively. In this example, as described above, the bonding pattern is a zigzag pattern (FIG. 3 ), as shown in FIG. 8, and the plurality of protrusions 17at, 17at, etc. are provided in a zigzag pattern on the outer peripheral surface of the drill roll 17a. In addition, due to the lateral flow, the width direction of the diaper 1 is along the MD direction and the rotation direction of the drill roller 17a.

為此,在上述低伸長性薄片9a的非接合部jn,至少包含有各一個同薄片9a之第1部份9a1的寬方向的中央位置C9a1與第2部份9a2的寬方向的中央位置C9a2的關係(第3圖)是與MD方向相關而成立的方式,配置有各突部17at、17at…。例如,該例中,使上述關係成立地配置有各突部17at、17at…,以使得第3圖的非接合部jn的MD方向的長度Ljn比同薄片9a的第2部份9a2的形成間距P9a2大。亦即,第8圖的例是將位在突部17at、17at彼此之間的突部17at的非存在部份17an的MD方向的長度L17an形成比上述的第2部份9a2的形成間距P9a2大(第3圖)。 Therefore, the non-joint portion jn of the low-elongation sheet 9a includes at least a central position C9a1 of the first portion 9a1 of the same sheet 9a in the width direction and a central position C9a2 of the second portion 9a2 in the width direction The relationship (Figure 3) is established in relation to the MD direction, and each protrusion 17at, 17at... is arranged. For example, in this example, the protrusions 17at, 17at... are arranged so that the above relationship is established so that the MD length Ljn of the non-joint portion jn in FIG. 3 is greater than the formation pitch of the second portion 9a2 of the same sheet 9a P9a2 is big. That is, in the example of FIG. 8, the MD length L17an of the non-existent portion 17an of the protrusion 17at between the protrusions 17at and 17at is formed to be larger than the formation pitch P9a2 of the second portion 9a2 described above (Figure 3).

藉此,在上述接合後,解除伸縮性薄片8a的伸長狀態時,依據上述第1部份9a1與第2部份9a2的剛性差,低伸長性薄片9a的各非接合部jn會迅速地壓曲,其結果,確實賦予各該非接合部jn皺褶,使整體的外層薄片9a的外觀變得良好。 Thereby, when the stretched state of the stretchable sheet 8a is released after the above-mentioned joining, each non-joined portion jn of the low-stretchable sheet 9a is quickly pressed due to the difference in rigidity between the first portion 9a1 and the second portion 9a2. As a result, each of the non-joint portions jn is creased, and the appearance of the entire outer layer sheet 9a is improved.

附帶一提,該例是如第3圖表示,雖是將非接合部jn的長度Ljn形成為第2部份9a2之間距P9a2的 兩倍大小以下,但不為該等有所限制。 Incidentally, this example is shown in FIG. 3, although the length Ljn of the non-joining portion jn is formed as the distance P9a2 between the second portion 9a2 Less than twice the size, but there are no restrictions for such.

例如,只要使非接合部jn的MD方向的長度Ljn大於第2部份9a2之MD方向的形成間距P9a2的複數倍即可。並且,根據上述,第1部份9a1的MD方向的中央位置C9a1與第2部份9a2的MD方向的中央位置C9a2形成分別有複數個包含於非接合部jn。並且,藉此非接合部jn之中在MD方向的複數位置有剛性差產生,低伸長性薄片9a的非接合部jn在複數位置迅速地被壓曲,其結果,可對於該非接合部jn賦予較多的皺褶。 For example, the length Ljn of the non-joining portion jn in the MD direction may be greater than a multiple of the formation pitch P9a2 of the second portion 9a2 in the MD direction. Further, according to the above, the central position C9a1 of the first portion 9a1 in the MD direction and the central position C9a2 of the second portion 9a2 in the MD direction are each formed plurally and included in the non-joint portion jn. In addition, due to this, there is a difference in rigidity at plural positions in the MD direction among the non-joined portions jn, and the non-joined portions jn of the low-elongation sheet 9a are rapidly buckled at the plural positions. As a result, the non-joined portions jn can be given More wrinkles.

再者,該例是如第8圖表示,雖例示正方形作為鑽輥17a的突部17at的頂面的平面形狀,但不為此所限制,例如可以是正五角形以上的正多角形,也可以是正圓形,也可以是該等以外的形狀。 In addition, this example is shown in FIG. 8, although a square is exemplified as the planar shape of the top surface of the protrusion 17at of the drill roll 17a, but it is not limited to this, for example, it may be a regular polygon of more than a regular pentagon or a regular shape. The circular shape may have other shapes.

又,如第5圖表示,該例雖是與鑽輥17a(相當於「一方的夾壓構件」)的外圍面相對地配置低伸長性薄片9a,與發聲器17h(相當於「另一方的夾壓構件」)的振動面17hs(相當於「面部」)相對地配置伸縮性薄片8a,但不為此所限制,也可以相反配置。亦即,也可以和鑽輥17a的外圍面相對地配置伸縮性薄片8a,與發聲器17h的振動面17hs相對地配置低伸長性薄片9a。但是,從接合部j的接合強度提升的觀點是以前者為佳。亦即,根據前者的本實施形態的構成,首先,在伸縮性薄片8a使發聲器17h的振動面17hs相對,並且,上述振動面17hs的面積是比鑽輥17a的外圍面的突部17at的頂面面 積大。又,鑽輥17a的外圍面的突部17at是與低伸長性薄片9a相對而設置,藉此,突部17at是透過低伸長性薄片9a夾壓伸縮性薄片8a。因此,藉突部17at的頂面可有效抑制使伸縮性薄片8a局部地變薄伸展而穿透等的狀況。並且,藉此,在突部17at的頂面殘留足夠量的伸縮性薄片8a。另一方面,位於突部17at側的低伸長性薄片9a的伸長性是比伸縮性薄片8a低。因此,藉著突部17at的頂面可有效避免使得低伸長性薄片9a局部地變薄而伸展的狀況。藉此,在突部17at的頂面可殘留足夠量的低伸長性薄片9a。並且,其結果,可以高的接合強度接合低伸長性薄片9a與伸縮性薄片8a。 Also, as shown in FIG. 5, in this example, although the low-elongation sheet 9a is arranged opposite to the outer peripheral surface of the drill roller 17a (corresponding to "one pressing member"), and the sound generator 17h (corresponding to "the other The vibrating surface 17hs (equivalent to "face") of the pinching member" is relatively arranged with the stretchable sheet 8a, but it is not limited to this, and may be arranged in reverse. That is, the stretchable sheet 8a may be arranged opposite to the outer peripheral surface of the drill roller 17a, and the low-elongation sheet 9a may be arranged opposite to the vibration surface 17hs of the sound generator 17h. However, from the viewpoint of improving the bonding strength of the bonding portion j, the former is preferable. That is, according to the configuration of the former embodiment of the former, first, the vibrating surface 17hs of the sound generator 17h is opposed to the stretchable sheet 8a, and the area of the vibrating surface 17hs is larger than the protrusion 17at of the outer peripheral surface of the drill roller 17a Top surface Accumulate. Moreover, the protrusion 17at of the outer peripheral surface of the drill roll 17a is provided so as to oppose the low-elongation sheet 9a, whereby the protrusion 17at presses the stretchable sheet 8a through the low-elongation sheet 9a. Therefore, the top surface of the protrusion 17at can effectively suppress the situation where the stretchable sheet 8a is partially thinned and stretched to penetrate. In addition, a sufficient amount of stretchable sheet 8a remains on the top surface of the protrusion 17at. On the other hand, the low-elongation sheet 9a located on the side of the protrusion 17at has lower extensibility than the stretchable sheet 8a. Therefore, the top surface of the protrusion 17at can effectively avoid the situation where the low-elongation sheet 9a is locally thinned and stretched. As a result, a sufficient amount of low-elongation sheet 9a can remain on the top surface of the protrusion 17at. In addition, as a result, the low-elongation sheet 9a and the stretchable sheet 8a can be joined with high bonding strength.

另外,該例是如第5圖表示,即使在伸縮性薄片8a從發聲器17h的振動面17hs離開之後,該伸縮性薄片8a與低伸長性薄片9a接合所成的外包裝薄片7a,在短暫的期間維持著捲繞於鑽輥17a的狀態。並藉此,有效抑制外包裝薄片7a之CD方向的收縮變形。附帶一提,同第5圖的例是將上述捲繞的實現,藉著在MD方向下游側的位置與鑽輥17a的外圍面相對配置搬運輥18R來進行。亦即,將外包裝薄片7a相對於鑽輥17a與搬運輥18R呈S字型掛設,藉此即使在比振動面17hs位於MD方向下游側的位置仍可維持著外包裝薄片7a捲繞於鑽輥17a的狀態。但是,不為此所限制。 In addition, in this example, as shown in FIG. 5, even after the stretchable sheet 8a is separated from the vibrating surface 17hs of the sound generator 17h, the outer sheet 7a formed by joining the stretchable sheet 8a and the low-elongation sheet 9a is temporarily The state of being wound around the drill roll 17a is maintained during the period. And by this, the shrinkage deformation of the outer packaging sheet 7a in the CD direction is effectively suppressed. Incidentally, the example in FIG. 5 realizes the above winding by arranging the conveying roller 18R so as to face the outer peripheral surface of the drill roller 17a on the downstream side in the MD direction. That is, the outer packaging sheet 7a is hanged in an S shape with respect to the drill roller 17a and the conveying roller 18R, whereby the outer packaging sheet 7a can be wound around the vibration surface 17hs on the downstream side in the MD direction. The state of the drill roller 17a. However, it is not restricted by this.

但是,上述中,雖已說明「位在低伸長性薄片9a貼合的狀態」,但是上述貼合的狀態中,低伸長薄 片9a是形成根據其低伸長性伸長至較此以上的狀態困難的所謂伸展停止狀態。因此,假如即使在以後的搬運中有假設外的大張力作用的場合,可以該低伸長性薄片9a抵抗上述張力以使得外包裝薄片7a的MD方向的長度不會變化。因此,在此後可以高位置精度進行相對於外包裝薄片7a所進行的腳周圍開口部7HL的形成處理,附帶一提,假設定義上述「伸展停止狀態」時,例如可稱為「薄片在不破損的狀態,並一邊保持著薄片的狀態,不致從該等時間點的狀態進一步以伸長率5%以上伸長的狀態」。 However, in the above, although the "position in which the low-elongation sheet 9a is bonded" has been explained, in the above-mentioned bonding state, the low-elongation thin The sheet 9a is in a state where it is difficult to form a so-called stretched-out state due to its low extensibility to extend beyond this state. Therefore, even in the case where there is an excessively large tensile force during subsequent transportation, the low-elongation sheet 9a can resist the above-mentioned tension so that the MD length of the outer packaging sheet 7a does not change. Therefore, the formation process of the opening around the foot 7HL with respect to the outer packaging sheet 7a can be performed with high position accuracy thereafter. Incidentally, assuming that the above-mentioned "stretching stopped state" is defined, for example, it can be called "the sheet is not damaged." State, while maintaining the state of the sheet, so as not to further extend at an elongation rate of 5% or more from the state at these times."

又,所謂上述的「伸長倍率」是表示伸長狀態的伸縮性薄片8a的全長伸長至伸長前的自然長度的數倍,並且,上述,伸長倍率是規定完成狀態的紙尿片1的外包裝薄片7(7a)從無負載狀態朝著寬方向是如何伸長。亦即,伸縮性薄片8a是被設定成預定伸長倍率而製造的紙尿片1是可使外包裝薄片7(7a)朝著紙尿片1的寬方向伸長至相當於該伸長倍率的伸長狀態為止。上述伸長倍率是例如設定成1.5倍~4倍的範圍的任意值,該例中,伸長倍率是設定為2.5倍。再者,以下稱伸縮性薄片8a伸長至該外包裝薄片生成處理部10所設定的伸長倍率為止的狀態為「第1伸長狀態」。 In addition, the above-mentioned "stretch ratio" means that the entire length of the stretchable sheet 8a in the stretched state is stretched to several times the natural length before stretching, and the stretch ratio is the packaging sheet of the diaper 1 in a predetermined completed state. 7(7a) How to extend from the no-load state to the width direction. That is, the stretchable sheet 8a is a diaper 1 manufactured by setting a predetermined stretch ratio, and the outer wrapping sheet 7 (7a) can be stretched in the width direction of the diaper 1 to an extended state corresponding to the stretch ratio. until. The above-mentioned elongation ratio is, for example, an arbitrary value set in the range of 1.5 times to 4 times, and in this example, the elongation ratio is set to 2.5 times. The state where the stretchable sheet 8a is stretched to the stretch ratio set by the packaging sheet generation processing unit 10 is hereinafter referred to as the "first stretched state".

(2)腳周圍開口部形成處理部20 (2) The opening around the foot forms the processing section 20

接著的腳周圍開口部形成處理部20也是外包裝薄片7a的伸長狀態維持著上述的第1伸長狀態。並且,如第 4A圖及第4B圖表示,該腳周圍開口部形成處理部20是對此第1伸長狀態所搬運的外包裝薄片7a,以預定的第1間距P1衝壓形成腳周圍開口部7HL。 The subsequent foot-peripheral opening formation processing section 20 also maintains the above-mentioned first extended state in the extended state of the outer packaging sheet 7a. And, as FIGS. 4A and 4B show that the around-foot opening forming processing section 20 is the outer packaging sheet 7a conveyed in the first extended state, and the around-foot opening 7HL is formed by pressing at a predetermined first pitch P1.

在此,上述第1間距P1是相當於第1伸長狀態之MD方向的紙尿片1的一份的長度。因此,外包裝薄片7a在成為紙尿片1的各部份各形成有一個腳周圍開口部7HL。附帶一提,該紙尿片1的一份的長度是根據外包裝薄片7a的伸長狀態而變化。例如,伸長狀態緩和而外包裝薄片7a收縮時,僅其收縮量縮短MD方向之紙尿片1的一個量的長度。 Here, the first pitch P1 is a length corresponding to one portion of the diaper 1 in the MD direction in the first extended state. Therefore, the outer sheet 7a has one leg opening 7HL formed in each part of the diaper 1. Incidentally, the length of one portion of the paper diaper 1 varies according to the extended state of the outer packaging sheet 7a. For example, when the extended state is relaxed and the outer packaging sheet 7a is contracted, only the amount of contraction is shortened by a length of the diaper 1 in the MD direction.

上述腳周圍開口部7HL的形成處理是藉衝切裝置21進行。衝切裝置21具有一邊使外圍面相對並沿著CD方向的轉軸周圍旋轉的上述一對的輥21u、21d。並且,上輥21u是在外圍面具有刀刃21c的衝切輥21u,另一方,下輥21d是以平滑的外圍面承接刀刃21c的鑽輥21d。又,刀刃21c是對應腳周圍開口部7HL的形狀的環狀的所謂衝切刃,從衝切輥21u的外圍面突出。因此,外包裝薄片7a通過該等上下輥21u、21d彼此之間的輥間隙時,在外包裝薄片7a中從同薄片7a衝切出對應環狀的刀刃21c內周圍側的部份,藉此,在外包裝薄片7a形成腳周圍開口部7HL。 The process of forming the opening 7HL around the foot is performed by the punching device 21. The die-cutting device 21 includes the pair of rollers 21u and 21d that rotate the circumference along the CD direction while facing the outer peripheral surface. The upper roller 21u is a punching roller 21u having a blade 21c on the outer peripheral surface. On the other hand, the lower roller 21d is a drill roller 21d that receives the blade 21c on a smooth peripheral surface. The blade 21c is a ring-shaped so-called punching blade corresponding to the shape of the opening 7HL around the leg, and protrudes from the outer peripheral surface of the punching roller 21u. Therefore, when the outer packaging sheet 7a passes through the roller gap between the upper and lower rollers 21u, 21d, the outer peripheral sheet 7a is punched out from the same sheet 7a in the portion corresponding to the inner side of the ring-shaped blade 21c, thereby, An opening 7HL around the legs is formed in the outer packaging sheet 7a.

附帶一提,該例中,上下輥21u、21d的驅動旋轉的驅動源為伺服馬達(未圖示)。又,刀刃21c是在上輥21u的外圍面僅設有一個。因此,外包裝薄片7a在 MD方向僅上述的第1間距P1的長度每通過衝切裝置21時,上輥21u及下輥21d分別進行一旋轉,藉此,在外包裝薄片7a以第1間距P1形成腳周圍開口部7HL。並藉此,以相當於第1伸長狀態的紙尿片1的一個量的長度的間距,在外包裝薄片7a形成腳周圍開口部7HL,然後,將同薄片7a以第1伸長狀態朝MD方向下游的外包裝薄片收縮處理部30送出。 Incidentally, in this example, the driving source for driving the upper and lower rollers 21u and 21d to rotate is a servo motor (not shown). Moreover, only one blade 21c is provided on the outer peripheral surface of the upper roller 21u. Therefore, the outer sheet 7a is In the MD direction, each time the length of the above-mentioned first pitch P1 passes through the die-cutting device 21, the upper roller 21u and the lower roller 21d rotate one by one, thereby forming the leg opening 7HL at the first pitch P1 in the outer packaging sheet 7a. Then, at a pitch corresponding to a length of the diaper 1 in the first stretched state, the leg opening 7HL is formed in the outer packaging sheet 7a, and then the same sheet 7a is moved downstream in the MD direction in the first stretched state The outer packaging sheet shrink processing section 30 is sent out.

(3)外包裝薄片收縮處理部30 (3) Outer sheet shrinkage processing section 30

接著的外包裝薄片收縮處理部30是如第4A圖及第4B圖表示,將第1伸長狀態所搬運的外包裝薄片7a朝著MD方向收縮,藉此,將外包裝薄片7a設成比第1伸長狀態的伸長倍率小的伸長倍率的伸長狀態(以下,稱第2伸長狀態)。例如,該例是減小外包裝薄片7a的延伸量,以使得在第1伸長狀態中的2.5倍的伸長倍率成為僅減小10%的2.25倍。並藉此,抑制在此之後安裝於外包裝薄片7a之吸收性主體3所產生的皺摺。再者,以下,稱第1伸長狀態的伸長倍率為「第1伸長倍率M1」,稱第2伸長狀態的伸長倍率為「第2伸長倍率M2」。 Next, as shown in FIGS. 4A and 4B, the outer packaging sheet shrinking processing section 30 shrinks the outer packaging sheet 7a transported in the first extended state toward the MD direction, thereby setting the outer packaging sheet 7a to 1 The stretched state in which the stretch ratio in the stretched state is small (hereinafter, referred to as the second stretched state). For example, in this example, the amount of extension of the outer packaging sheet 7a is reduced so that the elongation ratio of 2.5 times in the first extended state becomes 2.25 times that is reduced by only 10%. And by this, the wrinkles generated by the absorbent body 3 attached to the outer packaging sheet 7a after that are suppressed. In addition, hereinafter, the expansion magnification in the first expanded state is referred to as "first expansion magnification M1", and the expansion magnification in the second expanded state is referred to as "second expansion magnification M2".

上述外包裝薄片7a的收縮處理是藉著排列設置於MD方向的兩個夾輥機構31、33來進行。亦即,在MD方向的預定位置配置有上游側的夾輥機構31,並在較該上游側夾輥機構31的下游側的位置配置有下游側的夾輥機構33。並且,任意的夾輥機構31、33皆大致為相同 機構。 The shrinking process of the outer packaging sheet 7a is performed by arranging the two pinch roller mechanisms 31 and 33 arranged in the MD direction. That is, the upstream pinch roller mechanism 31 is arranged at a predetermined position in the MD direction, and the downstream pinch roller mechanism 33 is arranged at a position downstream of the upstream pinch roller mechanism 31. In addition, any pinch roller mechanisms 31, 33 are substantially the same mechanism.

亦即,上游側的夾輥機構31具有在沿著CD方向的轉軸周圍旋轉的上下一對夾輥31u、31d,又,下游側的夾輥機構33也具有在沿著CD方向的轉軸周圍旋轉的上下一對夾輥33u、33d。並且,上游側夾輥機構31的一對夾輥31u、31d,分別是以彼此的外圍面一邊夾入外包裝薄片7a,並使得該夾輥31u、31d從作為驅動源的伺服馬達(未圖示)賦予驅動力而旋轉驅動,藉此將外包裝薄片7a朝著MD方向的下游送出。又,同樣地,下游側夾輥機構33的一對夾輥33u、33d,分別是以彼此的外圍面一邊夾入外包裝薄片7a,並使得該夾輥33u、33d從作為驅動源的伺服馬達(未圖示)賦予驅動力而旋轉驅動,藉此將外包裝薄片7a朝著MD方向的更下游送出。 That is, the upstream pinch roller mechanism 31 has a pair of upper and lower pinch rollers 31u, 31d that rotate around the rotation axis in the CD direction, and the downstream pinch roller mechanism 33 also has a rotation around the rotation axis in the CD direction. A pair of upper and lower nip rollers 33u, 33d. In addition, the pair of nip rollers 31u and 31d of the upstream nip roller mechanism 31 sandwich the outer packaging sheet 7a on the outer peripheral surfaces of each other, and the nip rollers 31u and 31d are driven from a servo motor (not shown) as a driving source (Illustration) The driving force is applied to rotate, whereby the outer packaging sheet 7a is sent downstream in the MD direction. Also, similarly, the pair of nip rollers 33u, 33d of the downstream nip roller mechanism 33 sandwich the outer packaging sheet 7a on the outer peripheral surfaces of each other, and make the nip rollers 33u, 33d separate from the servo motor as the driving source (Not shown) The driving force is applied and the rotation is driven to send the outer packaging sheet 7a further downstream in the MD direction.

在此,上游側夾輥機構31的夾輥31u、31d的周速值V31(m/分鐘)是與上述超音波熔敷裝置17的鑽輥17a的周速值V17a(m/分鐘)大致同值,因此,該夾輥31u、31d的周速值V31於其最近上游側中在第1伸長狀態所搬運成為外包裝薄片7a之搬運速度值(m/分鐘)的第1搬運速度值大致同值。相對於此,下游側夾輥機構33的夾輥33u、33d的周速值V33(m/分鐘)是設成比上游側夾輥機構31的夾輥31u、31d的周速值V31僅小10%的值。因此,外包裝薄片7a在通過上游側夾輥機構31與下游側夾輥機構33之間的搬運路徑R30的期間,同薄片7a的伸長狀態是朝著比第1伸長狀態的伸長倍率僅 小10%的伸長倍率的第2伸長狀態收縮。並且,該第2伸長狀態的外包裝薄片7a被送出至MD方向之下游側的吸收性主體安裝處理部40。 Here, the peripheral speed value V31 (m/min) of the nip rollers 31u and 31d of the upstream nip roller mechanism 31 is substantially the same as the peripheral speed value V17a (m/min) of the drill roller 17a of the ultrasonic welding device 17 Therefore, the peripheral speed value V31 of the nip rollers 31u and 31d is transported in the first extended state on the nearest upstream side to become the transport speed value (m/min) of the packaging sheet 7a. The first transport speed value is approximately the same value. On the other hand, the peripheral speed value V33 (m/min) of the nip rollers 33u, 33d of the downstream nip roller mechanism 33 is set to be smaller than the peripheral speed value V31 of the nip rollers 31u, 31d of the upstream nip roller mechanism 31. % Value. Therefore, while the outer sheet 7a passes through the conveyance path R30 between the upstream pinch roller mechanism 31 and the downstream pinch roller mechanism 33, the extended state of the same sheet 7a is only an expansion ratio higher than that of the first extended state. The second elongation state with a 10% smaller elongation ratio shrinks. Then, the outer packaging sheet 7a in the second extended state is sent out to the absorbent body mounting processing section 40 on the downstream side in the MD direction.

附帶一提,在外包裝薄片7a通過上游側夾輥機構31的夾輥31u、31d的位置時,如上述,使得伸縮性薄片8a之中通過上述位置的部份依序朝MD方向收縮。因此,低伸長性薄片9a的第1部份9a1及第2部份9a2通過上述位置時,在同薄片9a上依序形成皺褶,其結果,可在外包裝薄片7a形成美觀整齊的皺褶。 Incidentally, when the outer packaging sheet 7a passes through the positions of the pinch rollers 31u and 31d of the upstream pinch roller mechanism 31, as described above, the portion of the stretchable sheet 8a that passes the position is sequentially shrunk in the MD direction. Therefore, when the first portion 9a1 and the second portion 9a2 of the low-elongation sheet 9a pass through the above-mentioned positions, wrinkles are sequentially formed on the same sheet 9a, and as a result, beautiful and regular wrinkles can be formed on the outer packaging sheet 7a.

但是,該例中,該收縮處理以後的外包裝薄片7a的搬運雖基本上大致是在第2伸長狀態下進行,但上述的搬運,可以使得外包裝薄片7a的搬運速度值大致維持在比上述第1搬運速度值僅對應上述收縮之比例小的搬運速度值(以下,稱第2搬運速度值)來實現。附帶一提,換言之,上述第2搬運速度值也可稱為「將第2伸長倍率以第1伸長倍率除後所成的除法值乘以第1搬運速度值的值」。 However, in this example, the conveyance of the outer packaging sheet 7a after the shrinking process is basically carried out in the second extended state, but the above-mentioned conveyance can maintain the conveying speed value of the outer packaging sheet 7a to be substantially lower than the above The first conveying speed value is realized only corresponding to the conveying speed value (hereinafter, referred to as the second conveying speed value) where the shrinkage ratio is small. Incidentally, in other words, the above-mentioned second conveying speed value may also be referred to as "the value obtained by multiplying the first conveying speed value by the division value obtained by dividing the second elongation magnification by the first elongation magnification".

又,在此,定義作為表示外包裝薄片7a的上述收縮程度之值得收縮率(%)時,成為如下。即,將第1伸長倍率M1減去第2伸長倍率M2所成減法值(=M1-M2)以第1伸長倍率M1除後所成的除法值(=(M1-M2)/M1)的百分率記數值是成為上述的收縮率(%)。該例中,如已說明,上述收縮率雖為10%,但不限於此。亦即,只要一邊維持著外包裝薄片7a貼合的狀態,且是可 收縮的範圍,即可設定任意的值,例如,可以是2%~80%範圍的任意值,也可以是較窄的5%~50%範圍的任意值,或進一步更窄的7%~30%範圍的任意值。 In addition, here, when it is defined as the value of the shrinkage rate (%) indicating the degree of shrinkage of the outer packaging sheet 7a, it becomes as follows. That is, the percentage of the subtraction value (=M1-M2) obtained by dividing the first elongation magnification M1 by the second elongation magnification M2 by the first elongation magnification M1 (=(M1-M2)/M1) The numerical value is the shrinkage (%) mentioned above. In this example, as described above, although the shrinkage rate is 10%, it is not limited to this. That is, as long as one side maintains the state in which the outer packaging sheet 7a is bonded, it is possible The range of shrinkage can be set to any value, for example, it can be any value in the range of 2% to 80%, or any value in the narrower range of 5% to 50%, or a further narrower range of 7% to 30 Any value in the% range.

(4)吸收性主體安裝處理部40 (4) Absorbent body installation processing section 40

接著的吸收性主體安裝處理部40是如第4A圖及第4B圖表示,對以第2伸長狀態所搬運的外包裝薄片7a在MD方向以第2間距P2安裝吸收性主體3。在此,上述第2間距P2是相當於第2伸長狀態之MD方向的紙尿片1的一個量的長度,但上述第2伸長狀態是如已說明,處於比第1伸長狀態更為收縮的狀態。因此,該第2間距P2是形成僅較上述第1間距P1小於上述收縮率的量的值。又,吸收性主體3是於外包裝薄片7a中安裝在與MD方向相鄰的腳周圍開口部7HL、7HL彼此之間的位置。 The following absorbent body attachment processing section 40 attaches the absorbent body 3 at the second pitch P2 in the MD direction to the outer packaging sheet 7a transported in the second extended state as shown in FIGS. 4A and 4B. Here, the second pitch P2 is a length corresponding to the diaper 1 in the MD direction of the second extended state, but the second extended state is more contracted than the first extended state, as already explained. status. Therefore, the second pitch P2 is a value that is smaller than the first pitch P1 by the shrinkage rate. In addition, the absorbent main body 3 is attached to the outer packaging sheet 7a at a position between the foot surrounding openings 7HL and 7HL adjacent to the MD direction.

上述吸收性主體3的安裝處理是例如藉旋轉滾筒裝置41進行。旋轉滾筒裝置41具有:沿著CD方向的轉軸周圍旋轉的旋轉滾筒42;作為使旋轉滾筒42驅動旋轉之驅動源的伺服馬達(未圖示);及在旋轉方向排列設置於旋轉滾筒42的外圍面的複數保持墊43、43…。各保持墊43具有可吸附吸收性主體3的保持面,各保持面是朝著旋轉滾筒42的旋轉半徑方向的外方。並且,藉著在位於保持面之面心的自轉軸周圍的自轉,各保持墊43可以從MD方向朝著CD方向變更保持面保持中的吸收性主體3的長方向的朝向。 The above-mentioned attaching process of the absorbent body 3 is performed by, for example, the rotary drum device 41. The rotating drum device 41 includes: a rotating drum 42 that rotates around a rotation axis in the CD direction; a servo motor (not shown) as a driving source that drives the rotating drum 42 to rotate; and is arranged on the periphery of the rotating drum 42 in the rotating direction The plural holding pads 43, 43... of the surface. Each holding pad 43 has a holding surface that can adsorb the absorbent body 3, and each holding surface is outward in the direction of the radius of rotation of the rotating drum 42. Furthermore, by rotating around the rotation axis located at the center of the face of the holding surface, each holding pad 43 can change the longitudinal direction of the absorbent body 3 during holding of the holding surface from the MD direction to the CD direction.

又,各保持墊43是跨相對於旋轉滾筒42可相對旋轉方向的預定範圍構成可往返移動,並且,上述往返移動動作是藉著未圖示的適當凸輪機構從旋轉滾筒42的旋轉動作所製作出。因此,可對應旋轉滾筒42旋轉方向的位置,變更在旋轉方向相鄰之保持墊43、43彼此的間距。亦即,旋轉方向的第1位置S1中,可使得相鄰的保持墊43、43彼此之間的間距成緊湊的狀態,並且旋轉方向的第2位置S2中,可使得保持墊43、43彼此之間的間距成為大的開放狀態。 In addition, each holding pad 43 is configured to be movable back and forth across a predetermined range of the relative rotation direction relative to the rotating drum 42, and the above-mentioned reciprocating movement is created from the rotating movement of the rotating drum 42 by an appropriate cam mechanism (not shown) Out. Therefore, the distance between the holding pads 43 and 43 adjacent to each other in the rotating direction can be changed according to the position in the rotating direction of the rotating drum 42. That is, in the first position S1 of the rotation direction, the spacing between adjacent holding pads 43, 43 can be made compact, and in the second position S2 of the rotation direction, the holding pads 43, 43 can be made The gap between them becomes a large open state.

在此,對於上述第1位置S1,以和MD方向連續之連續體3a的形態供應複數吸收性主體3。並且,在各保持墊43通過該第1位置S1時,同墊43吸附並承接吸收性主體的連續體3a,並以位在其附近的裁斷裝置45分割吸收性主體的連續體3a在保持墊43上生成單張狀的吸收性主體3。並且,在其狀態下,保持墊43雖是藉旋轉滾筒42的旋轉動作朝著旋轉方向的上述第2位置S2移動,但在其移動中,保持墊43進行上述的自轉動作而將吸收性主體3長方向的朝向從MD方向變更為CD方向。又,與此一併於同移動中,保持墊43進行上述的往返移動動作,將相鄰的保持墊43、43彼此的間距變更為第2間距P2。另外,將外包裝薄片7a的搬運路徑接近配置在同第2位置S2。藉此,旋轉滾筒裝置41可以第2間距P2相對於第2伸長狀態的外包裝薄片7a將吸收性主體3安裝在MD方向。 Here, for the first position S1, the plural absorbent bodies 3 are supplied in the form of a continuous body 3a continuous with the MD direction. Then, when each holding pad 43 passes through the first position S1, the same pad 43 sucks and receives the continuous body 3a of the absorbent body, and divides the continuous body 3a of the absorbent body with the cutting device 45 located near it on the holding pad The sheet-like absorbent body 3 is formed on 43. Furthermore, in this state, the holding pad 43 is moved toward the second position S2 in the rotation direction by the rotation of the rotary drum 42, but during its movement, the holding pad 43 performs the above-mentioned self-rotation operation to move the absorbent body 3 The direction of the long direction is changed from the MD direction to the CD direction. In addition, in the same movement together with this, the holding pad 43 performs the above-described reciprocating movement operation, and changes the pitch between adjacent holding pads 43 and 43 to the second pitch P2. In addition, the conveyance path of the outer packaging sheet 7a is arranged close to the second position S2. As a result, the rotary drum device 41 can mount the absorbent body 3 in the MD direction with respect to the second stretched outer packaging sheet 7a at the second pitch P2.

(5)二折處理部50 (5) Bifold processing section 50

接著的二折處理部50是將吸收性主體3安裝後的外包裝薄片7a以相當於紙尿片1的***部7c的CD方向大致中央部為折疊位置而在CD方向折疊為二。並藉以使外包裝薄片7a成為在厚度方向重疊同薄片7a的CD方向之一端部與另一端部的狀態。附帶一提,一端部最終是成為紙尿片1的腹側部7f,而另一端部是成為紙尿片1的背側部7b。 The next two-folding processing unit 50 folds the outer packaging sheet 7a after the absorbent body 3 is attached to the CD-direction substantially at the center in the CD direction corresponding to the crotch portion 7c of the diaper 1 in the CD direction. Then, the outer packaging sheet 7a is in a state where one end portion and the other end portion of the same sheet 7a in the CD direction are overlapped in the thickness direction. Incidentally, one end portion eventually becomes the ventral portion 7f of the diaper 1, and the other end portion becomes the back side portion 7b of the diaper 1.

上述外包裝薄片7a的二折處理是藉著配置在MD方向的預定位置的二折引導構件(未圖示)來進行。二折引導構件為習知構成,例如是組合適當的複數棒材所構成。並且,在外包裝薄片7a在通過該二折引導構件的配置位置時,藉著同引導構件使外包裝薄片7a以CD方向的大致中央部為折疊位置緩緩地折曲,在通過二折引導構件之後,外包裝薄片7a成為二折狀態。 The two-fold processing of the above-mentioned outer packaging sheet 7a is performed by a two-fold guide member (not shown) arranged at a predetermined position in the MD direction. The two-fold guide member is a conventional structure, for example, it is formed by combining appropriate plural rods. In addition, when the outer sheet 7a passes through the arrangement position of the two-fold guide member, the outer sheet 7a is gradually bent with the guide member at a substantially central portion in the CD direction as a folded position, and when the two-fold guide member passes After that, the outer packaging sheet 7a is in a two-folded state.

附帶一提,該二折處理部50的外包裝薄片7a的伸長狀態是維持著上述的第2伸長狀態,並且,在此伸長狀態下同外包裝薄片7a被送出至MD方向的下方。亦即,兩折處理部50的外包裝薄片7a的搬運速度值是大概維持著與上述第2搬運速度值同值。 Incidentally, the extended state of the outer packaging sheet 7a of the two-folding processing section 50 is to maintain the above-mentioned second extended state, and in this extended state, the outer packaging sheet 7a is sent out downward in the MD direction. That is, the conveyance speed value of the outer packaging sheet 7a of the two-folding processing section 50 is maintained at approximately the same value as the second conveyance speed value.

(6)端密封處理部60 (6) End seal processing section 60

接著的端密封處理部60中,外包裝薄片7a也是維持 著第2伸長狀態。並且,該端密封處理部60是將二折後的外包裝薄片7a固定於該二折狀態。亦即,將藉著二折在厚度方向重疊的外包裝薄片7a之CD方向的一端部與另一端部,在與MD方向相鄰的吸收性主體3、3彼此之間的位置熔敷,固定於二折狀態。再者,所熔敷的部份是作為端密封部jes而殘留在外包裝薄片7a上。並且,上述端密封部jes的形成對象位置為外包裝薄片7a處於第2伸長狀態,因此在MD方向以第2間距P2呈現。因此,同處理部60是在外包裝薄片7a以第2間距P2形成端密封部jes。 In the next end seal processing section 60, the outer packaging sheet 7a is also maintained In the second extended state. In addition, the end seal processing portion 60 fixes the outer packaging sheet 7a that has been folded in two in the folded state. That is, one end and the other end in the CD direction of the outer packaging sheet 7a overlapping in the thickness direction by double folding are welded and fixed at positions between the absorbent bodies 3 and 3 adjacent to the MD direction In a two-fold state. In addition, the welded portion remains as the end seal portion jes on the outer packaging sheet 7a. In addition, since the position where the end seal portion jes is to be formed is that the outer packaging sheet 7a is in the second extended state, it appears at the second pitch P2 in the MD direction. Therefore, in the same processing section 60, the end seal section jes is formed in the outer packaging sheet 7a at the second pitch P2.

上述端密封部jes的形成處理是藉熱密封加工裝置61來進行。熱密封加工裝置61具有一邊使外圍面彼此相對,並在沿著CD方向的轉軸周圍旋轉驅動的上下一對輥61u、61d。 The formation process of the end seal portion jes is performed by the heat seal processing device 61. The heat seal processing device 61 has a pair of upper and lower rollers 61u and 61d that have their peripheral surfaces facing each other and are rotationally driven around a rotation axis along the CD direction.

上輥61u具有在外圍面被加熱之凸狀的密封圖案部61sp,下輥61d具有承接該密封圖案部61sp的平滑的外圍面。又,密封圖案部61sp是以對應端密封部jes的形狀從上輥61u的外圍面突出。因此,在二折狀態的外包裝薄片7a通過該等上下輥61u、61d彼此之間的輥間隙時,在外包裝薄片7a之中與MD方向相鄰的吸收性主體3、3彼此之間的部份一邊被密封圖案部61sp與下輥61d的外圍面所夾壓而加熱,藉此,在外包裝薄片7a中使得成為紙尿片1寬方向的端部的部份熔融而在該部份形成端密封部jes。 The upper roller 61u has a convex sealing pattern portion 61sp that is heated on the peripheral surface, and the lower roller 61d has a smooth peripheral surface that receives the sealing pattern portion 61sp. Also, the seal pattern portion 61sp protrudes from the outer peripheral surface of the upper roller 61u in the shape of the corresponding end seal portion jes. Therefore, when the outer packaging sheet 7a in the two-folded state passes through the roller gap between the upper and lower rollers 61u, 61d, the portion between the absorbent bodies 3, 3 adjacent to the MD in the outer packaging sheet 7a One side is pressed and heated by the sealing pattern portion 61sp and the outer peripheral surface of the lower roller 61d, whereby the portion that becomes the end in the width direction of the diaper 1 in the outer packaging sheet 7a is melted to form an end at this portion Seal the jes.

附帶一提,該例中,上下輥61u、61d的驅動旋轉的驅動源為伺服馬達(未圖示)。又,在上輥61u的外圍面僅設有一個上述密封圖案部61sp。因此,上輥61u在外包裝薄片7a僅第2間距P2的長度每通過熱密封加工裝置61時進行一旋轉,藉此,以第2間距P2形成端密封部jes。並且,其結果,以相當於第2伸長狀態之紙尿片1的一個量的長度的間距,在外包裝薄片7a有形成端密封部jes。 Incidentally, in this example, the driving source for driving the upper and lower rollers 61u and 61d to rotate is a servo motor (not shown). In addition, only one seal pattern portion 61sp is provided on the outer peripheral surface of the upper roller 61u. Therefore, the upper roller 61u rotates every time the length of the second pitch P2 of the outer packaging sheet 7a passes through the heat seal processing device 61, thereby forming the end seal portion jes at the second pitch P2. In addition, as a result, an end seal portion jes is formed in the outer packaging sheet 7a at a pitch corresponding to a length of the paper diaper 1 in the second extended state.

(7)分割處理部70 (7) Division processing unit 70

接著的分割處理部70中,外包裝薄片7a是維持著第2伸長狀態。因此,以第2間距P2分割固定成二折狀態的外包裝薄片7a,藉此,從外包裝薄片7a以該第2間距P2切離下游端部來生成紙尿片1。 In the next division processing unit 70, the outer packaging sheet 7a is maintained in the second extended state. Therefore, the outer packaging sheet 7a is divided and fixed in a two-folded state at the second pitch P2, whereby the downstream end portion is cut from the outer packaging sheet 7a at the second pitch P2 to generate the diaper 1.

上述外包裝薄片7a的分割處理是以旋轉切斷裝置71來進行。旋轉切斷裝置71具有使外圍面一邊彼此相對並在沿著CD方向的轉軸周圍驅動旋轉的上下一對輥71u、71d。並且,上輥71u是在外圍面具有切削刃71c的切削輥71u,下輥71d為平滑的外圍面承接切削刃71c的鑽輥71d。又,切削刃71c是例如沿著CD方向延伸的平滑刃,從切削輥71u的外圍面突出。因此,在固定成二折狀態的外包裝薄片7a通過該等上下輥71u、71d彼此之間的輥間隙時,該外包裝薄片7a在端密封部jes的位置被分割,藉此,將外包裝薄片7a的下游端部切離,並使得該 切離後的下游端部成為紙尿片1。 The dividing process of the outer packaging sheet 7a is performed by the rotary cutting device 71. The rotation cutting device 71 has a pair of upper and lower rollers 71u and 71d that have their peripheral surfaces facing each other and are driven to rotate around a rotation axis along the CD direction. The upper roller 71u is a cutting roller 71u having a cutting edge 71c on the outer peripheral surface, and the lower roller 71d is a drill roller 71d having a smooth outer peripheral surface receiving the cutting edge 71c. Further, the cutting edge 71c is, for example, a smooth edge extending in the CD direction, and protrudes from the outer peripheral surface of the cutting roller 71u. Therefore, when the outer packaging sheet 7a fixed in a two-folded state passes through the roller gap between the upper and lower rollers 71u, 71d, the outer packaging sheet 7a is divided at the position of the end seal portion jes, whereby the outer packaging The downstream end of the sheet 7a is cut away and makes the The cut downstream end becomes the diaper 1.

附帶一提,該例中,上下輥71u、71d的曲動旋轉的驅動源為伺服馬達(未圖示)。又,切削刃71c是在上輥71u的外圍面僅設有一個。另外,外包裝薄片7a是以第2伸長狀態搬運。因此,每在外包裝薄片7a僅上述第2間距P2的長度通過旋轉切斷裝置71時,使上輥71u及下輥71d分別進行一旋轉,藉此,從外包裝薄片7a僅分割生成一個紙尿片1。並且,所生成的各紙尿片1藉著輸送帶等的適當搬運機構CV送至MD方向的下游側。 Incidentally, in this example, the driving source for the curved rotation of the upper and lower rollers 71u and 71d is a servo motor (not shown). In addition, only one cutting edge 71c is provided on the outer peripheral surface of the upper roller 71u. In addition, the outer packaging sheet 7a is conveyed in the second extended state. Therefore, every time only the length of the second pitch P2 of the outer packaging sheet 7a passes through the rotation cutting device 71, the upper roller 71u and the lower roller 71d are rotated one by one, whereby only one paper urine is generated from the outer packaging sheet 7a.片1. Then, each generated diaper 1 is sent to the downstream side in the MD direction by an appropriate conveying mechanism CV such as a conveyor belt.

===其他實施形態=== ===Other implementation forms===

以上,雖針對本發明的實施形態已作說明,但上述的實施形態是為容易進行本發明的理解,並非解釋為對本發明的限定。又,本發明在不脫離其主旨的範圍可進行變更或改良,並且本發明當然也包括其等價物。例如,可進行如以下表示的變形。 Although the embodiments of the present invention have been described above, the above embodiments are for easy understanding of the present invention and are not to be construed as limiting the present invention. In addition, the present invention can be changed or improved without departing from the gist thereof, and of course the present invention also includes equivalents thereof. For example, the following modifications can be made.

上述的實施形態是如第5圖表示,紙尿片1的製造生產線LM的外包裝薄片生成處理部10具有波形輥機構13。並藉此,該波形輥機構13在低伸長性薄片9a形成第1部份9a1與第2部份9a2之後,不捲繞同薄片9a而是以其狀態搬運至同處理部10的接合裝置15,但不為此所限定。 In the above-described embodiment, as shown in FIG. 5, the outer packaging sheet generation processing section 10 of the manufacturing line LM of the paper diaper 1 has a wave roller mechanism 13. Then, after the low-elongation sheet 9a forms the first portion 9a1 and the second portion 9a2, the corrugated roller mechanism 13 does not wind the same sheet 9a but transports it to the joining device 15 of the same processing section 10 in its state. , But not limited to this.

亦即,也可以取代紙尿片1的製造生產線LM具備上述波形輥機構13而在未圖示的其他製造生產線具備同機 構13。再者,在其場合,雖是藉著該其他的製造生產線的波形輥機構13,在低伸長性薄片9a形成第1部份9a1與第2部份9a2,但是在該形成後,一旦將同薄片9a捲繞成滾子狀而成為薄片輥的形態之後,以適當的保管場所保管。並且,在來到使用時期將同薄片輥從保管場所朝著紙尿片1的製造生產線LM移動,並安裝於同製造生產線LM的外包裝薄片生成處理部10具備的適當的送出裝置(未圖示),而從同薄片輥送出低伸長性薄片9a(相當於「準備步驟」),藉此將已形成有第1部份9a1及第2部份9a2的低伸長性薄片9a供應到同處理部10的接合裝置15。 That is, it is also possible to replace the manufacturing line LM of the diaper 1 with the above-mentioned wave roller mechanism 13 and to provide the same machine on another manufacturing line not shown Configuration 13. In addition, in this case, although the first part 9a1 and the second part 9a2 are formed on the low-elongation sheet 9a by the corrugated roller mechanism 13 of the other manufacturing line, after the formation, once the same After the sheet 9a is wound into a roller shape to be in the form of a sheet roll, it is stored in an appropriate storage place. Then, when it comes to use, the same sheet roller is moved from the storage location toward the manufacturing line LM of the diaper 1 and is installed in an appropriate delivery device provided in the outer packaging sheet generation processing section 10 of the same manufacturing line LM (not shown) Shown), and the low-elongation sheet 9a (equivalent to the "preparation step") is fed from the same sheet roll, thereby supplying the low-elongation sheet 9a in which the first part 9a1 and the second part 9a2 have been formed to the same process部10的联合装置15。 Joining device 15 of the portion 10.

但是,如上述,在捲繞形成有第1部份9a1及第2部份9a2的低伸長薄片9a時,因捲繞張力等,會有壓潰低伸長性薄片9a的高度之虞。因此,從利用波形輥機構13不至壓潰賦予低伸長性薄片9a之上述高度的觀點,如上述的本實施形態,以將波形輥13設置在外包裝薄片生成處理部10為佳。 However, as described above, when the low-elongation sheet 9a formed with the first portion 9a1 and the second portion 9a2 is wound, the height of the low-elongation sheet 9a may be crushed due to winding tension or the like. Therefore, from the viewpoint of not crushing the height given to the low-elongation sheet 9a by the corrugated roller mechanism 13, it is preferable to provide the corrugated roller 13 in the packaging sheet generation processing section 10 as in the present embodiment described above.

上述的實施形態是如第5圖表示,超音波熔敷裝置17的發聲器17h本身構成為非旋轉,並且,其振動面17hs雖是形成平面,但不為此所限制。例如,對於發聲器17h,也可以是和鑽輥17a同樣為輥構成。詳細而言,將該發聲器17h構成為可在沿著CD方向的轉軸周圍旋轉的輥(以下,稱發聲器輥,未圖示),具有以其外圍面作為振動面的功能。再者,此時,成為發聲器輥的外圍 面的振動面是相對於鑽輥17a的外圍面,在接近及分離的方向振動。又,在發聲器輥或鑽輥17a的至少一方的輥的外圍面上,以對應上述接合圖案的配置圖案設置上述的複數突部17at、17at…。 In the above embodiment, as shown in FIG. 5, the sound generator 17h of the ultrasonic welding device 17 itself is configured to be non-rotating, and the vibration surface 17hs is formed as a flat surface, but it is not limited to this. For example, the sound generator 17h may have a roller configuration similar to the drill roller 17a. Specifically, the sound generator 17h is configured as a roller that can rotate around a rotation axis along the CD direction (hereinafter, referred to as a sound generator roller, not shown), and has a function of using its peripheral surface as a vibration surface. Furthermore, at this time, it becomes the periphery of the sounder roller The vibration surface of the surface vibrates in the direction of approaching and separating from the outer peripheral surface of the drill roller 17a. In addition, the plurality of protrusions 17at, 17at, ... are provided on the outer peripheral surface of at least one of the sounder roller or the drill roller 17a in an arrangement pattern corresponding to the bonding pattern.

上述的實施形態是如第5圖表示,雖以超音波熔敷裝置17進行外包裝薄片生成處理部10所進行的伸縮性薄片8a與低伸長性薄片9a的接合,但不為此所限制。例如第9圖表示,也可以使用熱密封加工裝置或壓接加工裝置來取代超因波熔敷裝置17。再者,熱密封加工裝置的構成與壓接加工裝置的構成是彼此類似。亦即,兩者構成上的不同點,主要只在於有無輥的加熱的點,任一裝置皆具有在沿著CD方向的轉軸周圍驅動旋轉的上下一對輥19u、19d,並且,該等輥19u、19d是分別構成以和上述超音波熔敷裝置17的場合之鑽輥17a的周速值V17a同值的周速值旋轉。又,在上下一對輥19u、19d之中的至少一方的輥19u(19d)的外圍面上,以對應於上述接合圖案的配置圖案配置有複數突部(未圖示)。 The above-described embodiment is shown in FIG. 5. Although the ultrasonic welding device 17 performs the joining of the stretchable sheet 8a and the low-elongation sheet 9a by the outer sheet forming processing unit 10, it is not limited thereto. For example, FIG. 9 shows that a heat sealing processing device or a pressure welding processing device may be used instead of the ultrasonic wave welding device 17. In addition, the configuration of the heat-sealing processing apparatus and the configuration of the crimping processing apparatus are similar to each other. That is, the difference between the two is mainly in the presence or absence of the heating of the rollers. Any device has a pair of upper and lower rollers 19u, 19d that rotate around the rotation axis along the CD direction, and these rollers 19u and 19d are respectively constructed to rotate at the same peripheral speed value as the peripheral speed value V17a of the drill roll 17a in the case of the ultrasonic welding device 17 described above. In addition, a plurality of protrusions (not shown) are arranged on the outer peripheral surface of at least one roller 19u (19d) of the pair of upper and lower rollers 19u and 19d in an arrangement pattern corresponding to the above-mentioned bonding pattern.

因此,根據上述的構成,以伸長至第1伸長狀態為止的伸縮性薄片8a與形成有第1部份9a1及第2部份9a2的低伸長性薄片9a彼此重疊的狀態通過輥19u、19d彼此之間的輥間隙,但在該通過時,藉該等的輥19u、19d兩薄片8a、9a被各突部所夾壓,藉此,在兩薄片8a、9a形成有作為依據上述接合圖案的接合部j、j…的熔敷部或壓接部。 Therefore, according to the aforementioned configuration, the stretchable sheet 8a stretched to the first stretched state and the low stretch sheet 9a formed with the first portion 9a1 and the second portion 9a2 overlap each other through the rollers 19u and 19d. There is a gap between the rollers, but at the time of passing, the two sheets 8a, 9a are pinched by the protrusions by the rollers 19u, 19d, whereby the two sheets 8a, 9a are formed with The welding part or the crimping part of the joining parts j, j...

上述的實施形態雖例示鋸齒圖案作為接合伸縮性薄片8a與低伸長性薄片9a的接合圖案,但不為此所限制。例如,也可以在格眼的各交點分別形成有接合部j、j…的格子狀圖案,也可以此之外的圖案。 Although the above-mentioned embodiment exemplifies a zigzag pattern as a joint pattern for joining the stretchable sheet 8a and the low-elongation sheet 9a, it is not limited thereto. For example, a lattice-like pattern of the joints j, j... may be formed at each intersection of the lattice holes, or other patterns may be used.

上述的實施形態是使伸縮性薄片8a的伸縮方向沿著MD方向,因此在低伸長性薄片9a於MD方向交替第1部份9a1與第2部份9a2。並且,在與MD方向相鄰的接合部j、j彼此之間的非接合部jn至少各包含一個第1部份9a1的中央位置C9a1與第2部份9a2的中央位置C9a2地形成接合部j,藉此,在MD方向的收縮時,可確實在非接合部jn形成皺褶,但不限於此。例如,可以如下進行。 In the above-described embodiment, the direction of expansion and contraction of the stretchable sheet 8a is along the MD direction. Therefore, the first portion 9a1 and the second portion 9a2 are alternated in the MD direction in the low-elongation sheet 9a. In addition, the non-joining portion jn between the joining portions j and j adjacent to the MD direction includes at least one central position C9a1 of the first portion 9a1 and a central position C9a2 of the second portion 9a2 to form the joint portion j Therefore, when shrinking in the MD direction, wrinkles can be reliably formed in the non-joining portion jn, but it is not limited to this. For example, it can be done as follows.

首先,如第10圖的透視影像圖表示,使伸縮性薄片8a’的伸縮方向一邊沿著CD方向並將同薄片8a’朝著MD方向搬運,但在該搬運中將同薄片9a’朝CD方向伸長至預定的伸長倍率為止。並且,對於低伸長性薄片9a’也是朝著MD方向一邊搬運,並在同薄片9a’上,使得朝CD方向延伸的第1部份9a1’及比第1部份9a1’較不延伸的第2部份9a2’在CD方向交替排列地形成該等部份9a1’、9a2’。並且,將形成有該第1部份9a1’及第2部份9a2’的低伸長性薄片9a接合於朝上述CD方向伸長狀態的伸縮性薄片8a,。但是,此接合時,在與CD方向相鄰的接合部j’、j’彼此之間的非接合部jn’至少各包含一個第1部份9a1’的中央位置C9a1’與第2部份9a2’的中央位置 C9a2’地形成接合部j’。並且,如此一來,解除CD方向的伸長狀態而朝CD方向收縮時,可確實在非接合部jn’形成沿MD方向的皺褶。 First, as shown in the perspective image view of FIG. 10, the stretchable sheet 8a' is stretched along the CD direction and the same sheet 8a' is transported in the MD direction, but during this transport, the same sheet 9a' is transported toward the CD Stretch in the direction up to a predetermined stretch ratio. In addition, the low-elongation sheet 9a' is also transported toward the MD direction, and on the same sheet 9a', the first portion 9a1' extending in the CD direction and the first portion 9a1' extending less than the first portion 9a1' The two parts 9a2' are alternately arranged in the CD direction to form the parts 9a1' and 9a2'. Then, the low-elongation sheet 9a formed with the first portion 9a1' and the second portion 9a2' is joined to the stretchable sheet 8a extended in the CD direction. However, in this joining, the non-joining portions jn' between the joining portions j'and j'adjacent to the CD direction each include at least one central position C9a1' of the first portion 9a1' and the second portion 9a2 'Central location C9a 2'forms the joint j'. Further, in this way, when the extended state in the CD direction is released and contracted in the CD direction, wrinkles in the MD direction can be surely formed in the non-joining portion jn'.

附帶一提,該例雖是以格子狀圖案形成接合部j’、j’…,但不限於此,也可形成上述的鋸齒圖案。 Incidentally, in this example, although the bonding portions j', j'... are formed in a lattice pattern, it is not limited to this, and the aforementioned zigzag pattern may be formed.

又,相對於低伸長性薄片9a’在CD方向交替形成第1部份9a1’及第2部份9a2’的裝置,可例示如第11A圖及第11B圖表示的輥機構13’。再者,第11A圖是從MD方向的下游側顯示輥機構13’的概略前視圖,第11B圖為第11A圖中的B-B箭頭方向圖。 In addition, the roller mechanism 13' shown in Figs. 11A and 11B can be exemplified for an apparatus in which the first portion 9a1' and the second portion 9a2' are alternately formed in the CD direction with respect to the low-elongation sheet 9a'. In addition, FIG. 11A is a schematic front view of the display roller mechanism 13' from the downstream side in the MD direction, and FIG. 11B is a B-B arrow direction view in FIG. 11A.

該輥機構13’具有沿CD方向在轉軸周圍旋轉的上下一對輥13u’、13d’。上輥13u’在CD方向交替地具有大徑部份13m’與小徑部份13v’,同樣地,下輥13d’也在CD方向交替地具有大徑部份13m’與小徑部份13v’。並且,該等輥13u’、13d’是彼此將本身的大徑部份13m’一邊***相對之小徑部份13v’的附近空間並成上下配置,藉此在輥13u’、13d’的旋轉方向的一部份Ab使得彼此的大徑部份13m’、13m’咬合。又,使低伸長性薄片9a沿著MD方向通過該等輥13u’、13d’彼此之間。 The roller mechanism 13' has a pair of upper and lower rollers 13u' and 13d' which rotate around the rotation axis in the CD direction. The upper roller 13u' alternately has a large diameter portion 13m' and a small diameter portion 13v' in the CD direction, and similarly, the lower roller 13d' also alternately has a large diameter portion 13m' and a small diameter portion 13v in the CD direction '. In addition, the rollers 13u', 13d' are inserted into the space near the opposite small-diameter part 13v' with their large-diameter parts 13m' side and arranged vertically, thereby rotating the rollers 13u', 13d' A part of the direction Ab makes the large diameter portions 13m' and 13m' of each other engage. In addition, the low-elongation sheet 9a is passed between the rollers 13u' and 13d' in the MD direction.

因此,該通過中的低伸長性薄片9a,藉著在一方的輥13u’(13d’)彼此相鄰的大徑部份13m’、13m’彼此,及進入該等大徑部份13m’、13m’彼此之間的小徑部份13v’的另一方的輥13d’(13u’)的大徑部份13m’,變形成三點彎曲狀。並且,此時,在低伸長性薄片9a’與一方的 輥13u’(13d’)的大徑部份13m’的頂面抵接的部份9a2’是與該頂面大致不能相對移動地抵接,藉此,大致不延伸地成為上述的第2部份9a2’,且同樣地,在同薄片9a’與另一方的輥13d’(13u’)的大徑部份13m’的頂面抵接的部份9a2’也是與該頂面大致不能相對移動地抵接,藉此,大致不延伸地成為上述的第2部份9a2’。但是,該等兩個第2部份9a2’、9a2’彼此之間的部份9a1’是根據上述的大徑部份13m’的進入量而延伸,因此,該部份9a1’成為上述第1部份9a1’。並且,藉此,低伸長性薄片9a’在CD方向交替形成有第1部份9a1’與第2部份9a2’。 Therefore, the low-elongation sheet 9a in the passage passes through the large-diameter portions 13m', 13m' adjacent to each other by one roller 13u' (13d'), and enters the large-diameter portions 13m', The small-diameter portion 13v' between the 13m' and the large-diameter portion 13m' of the other roller 13d' (13u') is deformed into a three-point bend. Also, at this time, the low-elongation sheet 9a' and one of the The portion 9a2' of the top surface of the large diameter portion 13m' of the roller 13u' (13d') is in contact with the top surface so as to be relatively immovable, so that it does not substantially extend into the above-mentioned second portion The portion 9a2', and similarly, the portion 9a2' which is in contact with the top surface of the large-diameter portion 13m' of the other roller 13d' (13u') of the same sheet 9a' is also substantially immovable relative to the top surface The ground abuts, thereby becoming the second portion 9a2′ described above without extending substantially. However, the portion 9a1' between the two second portions 9a2' and 9a2' is extended according to the entrance amount of the above-mentioned large-diameter portion 13m'. Therefore, the portion 9a1' becomes the first Part 9a1'. Further, by this, the first portion 9a1' and the second portion 9a2' are alternately formed in the CD direction of the low-elongation sheet 9a'.

再者,上述的本實施形態是以抑制低伸長性薄片9a之伸縮性的發現為目的,如第7圖表示,雖是將波形輥13u的山部13m在CD方向的預定位置Pk形成缺口,但也可將與此類似的構成,運用在該第11A圖及第11B圖的輥機構13’。亦即,如第11B圖表示,也可以使一對輥13u’、13d’之中的至少一方的輥13u’的各大徑部份13m’在旋轉方向的預定位置Pk’形成缺口,藉此非連續地設置大徑部份13m’。並且,如此一來,由於在該預定位置Pk’不存在有大徑部份13m’,所以在同位置Pk’不進行上述三點彎曲狀的延伸處理,因此,至少該位置Pk’可抑制伸縮性的發現。其結果,可整體抑制低伸長性薄片9a’之CD方向伸縮性的發現。 Furthermore, the present embodiment described above is for the purpose of suppressing the discovery of the stretchability of the low-elongation sheet 9a. As shown in FIG. 7, although the mountain portion 13m of the wave roller 13u is notched at a predetermined position Pk in the CD direction, However, a configuration similar to this may be applied to the roller mechanism 13' in FIGS. 11A and 11B. That is, as shown in FIG. 11B, each large-diameter portion 13m′ of at least one roller 13u′ of the pair of rollers 13u′ and 13d′ may be notched at a predetermined position Pk′ in the rotation direction, thereby The large diameter part 13m' is set discontinuously. In addition, since there is no large-diameter portion 13m' at the predetermined position Pk', the three-point bending extension process is not performed at the same position Pk', so at least the position Pk' can suppress expansion and contraction Sexual discovery. As a result, the discovery of stretchability in the CD direction of the low-elongation sheet 9a' can be suppressed as a whole.

又,將伸縮性性薄片8a朝CD方向伸長的裝置,可例示如適當的加寬裝置(未圖示)。例如,加寬裝置具有 分別對應伸縮性薄片8a的CD方向的各端部而設置的一對滾筒,各滾筒驅動旋轉使得本身的外圍面一邊抵接於伸縮性薄片8a,並將同薄片8a送出朝著MD方向的下游側送出。又,在與同薄片8a抵接的位置,各滾筒的旋轉方向是比沿著MD方向的方向更若干朝向CD方向的外側。因此,在通過各滾筒的位置時,同薄片8a被各滾筒朝著CD方向的兩側所拉伸,藉以使得同薄片8a朝著CD方向的兩側伸長。 In addition, a device that extends the stretchable sheet 8a in the CD direction can be exemplified by an appropriate widening device (not shown). For example, the widening device has A pair of rollers respectively corresponding to the CD-direction ends of the stretchable sheet 8a, each of which is driven to rotate so that its outer peripheral surface abuts on the stretchable sheet 8a and sends the same sheet 8a downstream in the MD direction Side out. In addition, at a position in contact with the same sheet 8a, the rotation direction of each roller is slightly more outward in the CD direction than in the MD direction. Therefore, when passing through the positions of the rollers, the same sheet 8a is stretched by the rollers on both sides in the CD direction, so that the same sheet 8a is elongated on both sides in the CD direction.

上述實施形態是如第4A圖表示,外包裝薄片收縮處理部30具有一對夾輥機構31、33以作為使第1伸長狀態的外包裝薄片7a收縮的機構,但只要可使外包裝薄片7a收縮的機構,則不受此所限制。例如,也可設置如第12圖表示的一對S鉤掛輥機構31’、33’來取代上述的一對夾輥機構31、33。亦即,各S鉤掛輥機構31’(33’)具有一邊使得彼此的外圍面相對並在沿著CD方向的轉軸周圍驅動旋轉的一對輥31u’、31d’(33u’、33d’),並且,構成相對於該一對輥31u’、31d’(33u’、33d’)呈S字型掛外包裝薄片7a。因此,藉上述構成,可以一對輥31u’、31d’(33u’、33d’)的外圍面大致不相對滑動地保持著外包裝薄片7a,根據該等輥31u’、31d’(33u’、33d’)的驅動旋轉,可以輥31u’、31d’(33u’、33d’)的周速值作為外包裝薄片7a的搬運速度值來搬運同薄片7a。可使用上述S鉤掛輥機構31’、33’來取代上述的夾輥機構31、33。附帶一提,第12圖的例是將一對 夾輥機構31、33的雙方分別置換成S鉤掛輥機構31’、33’,但可根據場合,僅將任一方的夾輥機構31(33)置換成S鉤掛輥機構31’(33’)。 In the above embodiment, as shown in FIG. 4A, the outer packaging sheet shrinking processing section 30 has a pair of pinch roller mechanisms 31, 33 as a mechanism for contracting the outer packaging sheet 7a in the first extended state, but as long as the outer packaging sheet 7a can be made The contracting mechanism is not restricted by this. For example, a pair of S hook roller mechanisms 31', 33' as shown in Fig. 12 may be provided instead of the pair of pinch roller mechanisms 31, 33 described above. That is, each S-hook roller mechanism 31' (33') has a pair of rollers 31u', 31d' (33u', 33d') with one side facing each other's peripheral surfaces and driving and rotating around a rotation axis along the CD direction Also, the outer packaging sheet 7a is formed in an S shape with respect to the pair of rollers 31u', 31d' (33u', 33d'). Therefore, with the above-mentioned configuration, the outer peripheral surface of the pair of rollers 31u', 31d' (33u', 33d') can be held substantially without sliding relative to each other. According to the rollers 31u', 31d' (33u', The drive rotation of 33d') allows the same sheet 7a to be transported with the peripheral speed values of the rollers 31u', 31d' (33u', 33d') as the transport speed value of the outer packaging sheet 7a. Instead of the nip roller mechanisms 31, 33, the S hook roller mechanisms 31', 33' described above may be used. Incidentally, the example in Figure 12 is a pair of Both of the pinch roller mechanisms 31, 33 are replaced with S hook roller mechanisms 31', 33', but depending on the occasion, only one of the pinch roller mechanisms 31 (33) may be replaced with S hook roller mechanisms 31' (33 ').

j‧‧‧接合部 j‧‧‧Joint

jn‧‧‧非接合部 jn‧‧‧non-joint part

9a2‧‧‧第2部份 9a2‧‧‧Part 2

C9a1‧‧‧第1部份的中央位置 C9a1‧‧‧Central position of part 1

C9a2‧‧‧第2部份的中央位置 C9a2‧‧‧Central position of part 2

Ljn‧‧‧長度 Ljn‧‧‧Length

P9a2‧‧‧間距 P9a2‧‧‧spacing

PRj‧‧‧間距 PRj‧‧‧spacing

PjW‧‧‧間距 PjW‧‧‧spacing

Rj‧‧‧非接合部列 Rj‧‧‧non-joined series

Claims (9)

一種吸收性物品相關之複合薄片的製造方法,具有:吸收性物品相關的伸縮性薄片,及伸長性比上述伸縮性薄片低的低伸長性薄片的複合薄片的製造方法,其特徵為,具有:準備使得朝預定方向延伸的第1部份與較上述第1部份不延伸的第2部份在上述預定方向交互排列所形成的上述低伸長性薄片的步驟,及以在上述伸縮性薄片朝著伸縮方向伸長的狀態,使上述伸縮方向在上述預定方向一致並對上述低伸長性薄片透過複數接合部固定上述伸縮性薄片的步驟,上述固定步驟是將上述複數接合部朝著上述伸縮方向及與上述伸縮方向交叉的方向的兩方向呈非連續分散地設置,並設置上述接合部,使得在上述複數接合部之中位在與上述伸縮方向相鄰的接合部彼此之間的非接合部,分別包含有各複數個上述第1部份的上述預定方向的中央位置與上述第2部份的上述預定方向的中央位置。 A method of manufacturing a composite sheet related to an absorbent article, comprising: a stretchable sheet related to an absorbent article, and a method of manufacturing a composite sheet having a low extensibility sheet having a lower extensibility than the above-mentioned stretchable sheet, characterized by having: A step of preparing the low-extensible sheet formed by alternately arranging the first portion extending in the predetermined direction and the second portion not extending from the first portion in the predetermined direction, and A state of extending in the stretching direction, making the stretching direction coincide in the predetermined direction, and fixing the stretchable sheet through the plural joint portions of the low-elongation sheet, the fixing step is to move the plural joint portions toward the stretching direction and The two directions intersecting the direction of expansion and contraction are provided in a discontinuously dispersed manner, and the joint portions are provided so that the non-joint portions between the joint portions adjacent to the direction of expansion and contraction are located among the plurality of joint portions, Each includes a plurality of central positions of the first portion in the predetermined direction and a central position of the second portion in the predetermined direction. 如申請專利範圍第1項記載的吸收性物品相關之複合薄片的製造方法,其中,上述準備步驟是準備形成有使複數的上述第2部份沿著上述預定方向以預定的形成間距排列的上述低伸長性薄片,上述固定步驟是設置上述接合部使得上述非接合部的上述伸縮方向的長度為大於上述形成間距的複數倍大。 The method for manufacturing a composite sheet related to an absorbent article as described in item 1 of the patent application range, wherein the preparation step is to prepare the plurality of the second portions arranged at a predetermined formation pitch along the predetermined direction In the low-elongation sheet, the fixing step is to provide the joining portion such that the length of the non-joining portion in the direction of expansion and contraction is greater than a multiple of the forming pitch. 如申請專利範圍第1或2項記載的吸收性物品相 關之複合薄片的製造方法,其中,上述低伸長性薄片為連續於上述預定方向的連續薄片,上述準備步驟是以上述預定方向為搬運方向進行上述低伸長性薄片的搬運,並在該搬運中的上述低伸長性薄片形成上述第1部份與上述第2部份,不捲繞形成有上述第1部份與上述第2部份的上述低伸長性薄片,朝著進行上述固定步驟的位置搬運。 If the absorbent article described in item 1 or 2 of the patent scope A method for manufacturing a composite sheet, wherein the low-elongation sheet is a continuous sheet continuous in the predetermined direction, and the preparation step is to transport the low-elongation sheet with the predetermined direction as the conveying direction, and during the conveyance The low-elongation sheet formed the first part and the second part without winding the low-elongation sheet formed with the first part and the second part toward the position where the fixing step is performed Handling. 如申請專利範圍第1或2項記載的吸收性物品相關之複合薄片的製造方法,其中,上述低伸長性薄片為連續於上述預定方向的連續薄片,上述伸縮性薄片為連續於上述伸縮方向的連續薄片,在上述固定步驟中,上述伸縮性薄片是以上述伸縮方向為搬運方向進行搬運,固定有上述低伸長性薄片的上述伸縮性薄片,在上述固定步驟之後通過上述搬運方向的預定位置時,在上述伸縮性薄片之中以使得通過上述預定位置的部份依序朝上述伸縮方向收縮。 A method for manufacturing a composite sheet related to an absorbent article as described in item 1 or 2 of the patent application range, wherein the low-elongation sheet is a continuous sheet continuous in the predetermined direction, and the stretchable sheet is continuous in the stretching direction Continuous sheet, in the fixing step, when the stretchable sheet is transported with the stretch direction as the conveying direction, the stretchable sheet to which the low-elongation sheet is fixed, passes the predetermined position in the conveying direction after the fixing step In the stretchable sheet, the portion passing through the predetermined position is sequentially contracted in the stretch direction. 如申請專利範圍第1或2項記載的吸收性物品相關之複合薄片的製造方法,其中,上述準備步驟是在與上述預定方向交叉的方向的預定位置,一邊產生不朝著上述預定方向延伸的部份,並在上述低伸長性薄片形成上述第1部份與上述第2部份。 The method for manufacturing a composite sheet related to an absorbent article as described in item 1 or 2 of the patent application scope, wherein the preparation step is performed at a predetermined position in a direction intersecting the predetermined direction while not extending in the predetermined direction Part, and the first part and the second part are formed on the low-elongation sheet. 如申請專利範圍第5項記載的吸收性物品相關之複合薄片的製造方法,其中,上述低伸長性薄片為連續於 上述預定方向的連續薄片,在一邊使彼此的外圍面相對並使得上述低伸長性薄片通過沿著上述搬運方向旋轉的一對輥彼此之間,藉此形成上述第1部份及上述第2部份,上述一對輥是分別沿著旋轉方向而在各外圍面交互形成有山部與谷部之波形輥,並且上述一對輥彼此使彼此的上述山部咬合旋轉地進入上述谷部,上述一對輥之中的至少一方的輥的上述山部是非連續設置在沿著上述輥的轉軸的方向。 A method for manufacturing a composite sheet related to an absorbent article as described in item 5 of the patent application, wherein the low-elongation sheet is continuous The continuous sheets in the predetermined direction are opposed to each other on one side and the low-elongation sheet is passed between a pair of rollers rotating in the conveying direction to form the first part and the second part In addition, the pair of rollers are corrugated rollers with mountain portions and valley portions alternately formed on each peripheral surface along the rotation direction, and the pair of rollers mutually engage the mountain portions to rotate into the valley portions. The mountain portion of at least one of the pair of rollers is discontinuously provided along the rotation axis of the roller. 如申請專利範圍第6項記載的吸收性物品相關之複合薄片的製造方法,其中,上述一對輥之中的另一方輥的上述山部是與沿著上述輥的轉軸的方向連續地設置。 The method for manufacturing a composite sheet related to an absorbent article as described in Item 6 of the patent application range, wherein the mountain portion of the other roller among the pair of rollers is provided continuously along the direction of the rotation axis of the roller. 如申請專利範圍第1或2項記載的吸收性物品相關之複合薄片的製造方法,其中,上述固定步驟是以將上述伸縮性薄片與上述低伸長性薄片在彼此的厚度方向重疊的狀態,從厚度方向藉一對夾壓構件夾壓上述伸縮性薄片與上述低伸長性薄片,藉此形成上述接合部,上述一對夾壓構件之中的一方的夾壓構件是在與上述低伸長性薄片相對的面上,以形成有上述複數接合部的模式具有複數突部,另一方的夾壓構件是在與上述伸縮性薄片相對的面上,具有比承接上述突部的頂面的上述頂面大的面部。 The method for manufacturing a composite sheet related to an absorbent article as described in item 1 or 2 of the patent application scope, wherein the fixing step is a state in which the stretchable sheet and the low-elongation sheet overlap in the thickness direction of each other, from In the thickness direction, the elastic sheet and the low-elongation sheet are pinched by a pair of pinching members to form the joint portion, and one of the pair of pinching members is in contact with the low-elongation sheet The opposing surface has a plurality of protrusions in a pattern in which the plurality of joints are formed, and the other clamping member has a top surface that is higher than the top surface that receives the protrusions on the surface opposite to the elastic sheet Big face. 一種吸收性物品相關之複合薄片的製造裝置,具有:吸收性物品相關的伸縮性薄片,及伸長性比上述伸縮 性薄片低的低伸長性薄片的複合薄片的製造裝置,其特徵為,具有:準備使得朝預定方向延伸的第1部份與較上述第1部份不延伸的第2部份在上述預定方向交互排列所形成的上述低伸長性薄片的裝置,及以在上述伸縮性薄片朝著伸縮方向伸長的狀態,使上述伸縮方向在上述預定方向一致並對上述低伸長性薄片透過複數接合部固定上述伸縮性薄片的裝置,上述固定裝置是將上述複數接合部朝著上述伸縮方向及與上述伸縮方向交叉的方向的兩方向呈非連續分散地設置,並設置上述接合部,使得在上述複數接合部之中位在與上述伸縮方向相鄰的接合部彼此之間的非接合部,分別包含有各複數個上述第1部份的上述預定方向的中央位置與上述第2部份的上述預定方向的中央位置。 An apparatus for manufacturing a composite sheet related to an absorbent article, comprising: a stretchable sheet related to an absorbent article, and an extensibility greater than the above The device for manufacturing a composite sheet of a low-elongation sheet having a low elasticity sheet is characterized by preparing a first part extending in a predetermined direction and a second part not extending in the predetermined direction in the predetermined direction An apparatus for arranging the formed low-elongation sheets alternately, and in a state where the stretchable sheet is stretched toward the stretch direction, making the stretch direction coincide in the predetermined direction and fixing the low stretch sheet through a plurality of joints An apparatus for a stretchable sheet, wherein the fixing device disposes the plurality of joint portions discontinuously dispersed in both directions of the telescopic direction and the direction crossing the telescopic direction, and the joint portions are provided so that the plurality of joint portions The non-joint parts, which are located between the joint parts adjacent to the telescopic direction, respectively include a plurality of central positions of the first part in the predetermined direction and the second part of the predetermined direction. Central location.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07213554A (en) * 1994-02-04 1995-08-15 New Oji Paper Co Ltd Manufacture of sheet-type elastic combination
WO2008066007A1 (en) * 2006-11-27 2008-06-05 Uni-Charm Corporation Absorbent article and composite sheet
JP2011214201A (en) * 2010-03-31 2011-10-27 Unicharm Corp Elastic nonwoven fabric and method of manufacturing the same

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US7833917B2 (en) * 2004-12-30 2010-11-16 Kimberly-Clark Worldwide, Inc. Extensible and stretch laminates with comparably low cross-machine direction tension and methods of making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07213554A (en) * 1994-02-04 1995-08-15 New Oji Paper Co Ltd Manufacture of sheet-type elastic combination
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