WO2004052258A1 - 使い捨ておむつの製造方法 - Google Patents
使い捨ておむつの製造方法 Download PDFInfo
- Publication number
- WO2004052258A1 WO2004052258A1 PCT/JP2003/015446 JP0315446W WO2004052258A1 WO 2004052258 A1 WO2004052258 A1 WO 2004052258A1 JP 0315446 W JP0315446 W JP 0315446W WO 2004052258 A1 WO2004052258 A1 WO 2004052258A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- web
- panel
- machine direction
- webs
- side edges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies
- A61F13/496—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies in the form of pants or briefs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15723—Partitioning batts; Cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15747—Folding; Pleating; Coiling; Stacking; Packaging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1008—Longitudinal bending
- Y10T156/1011—Overedge bending or overedge folding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1015—Folding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding
Definitions
- the present invention relates to a method for producing a disposable diaper that absorbs and retains excrement.
- the production method disclosed in Japanese Patent Application Laid-Open No. H11-10707 discloses a method in which a central portion in the cross direction of a continuous composite web is cut off at a first cutting line that substantially forms an annular shape, and a predetermined dimension is separated in a machine direction.
- the composite web and the panel are bent inward in the cross direction along the center line in the machine direction, and the overlapping composite webs are located on both sides of the first cutting line and near the second cutting line extending in the cross direction And a diaper manufacturing means for cutting the composite PEB at the second cutting line to form a large number of diapers lined up in the machine direction.
- the composite web is formed from a first web and a second web.
- the first and second webs overlap each other These opposing surfaces are fixed via an adhesive.
- a continuous webbing elastic member extending in the machine direction is attached to the composite web in an extended state, and a leg elastic member extending in the cross direction is attached in an extended state.
- the waist elastic members are disposed on both sides of the composite web.
- the leg-surrounding elastic members are disposed between the leg-surround openings formed in the composite web. These elastic members are interposed between the first web and the second web, and are fixed to the webs with an adhesive.
- both sides of the composite web define a waist end surrounding the waist opening.
- both sides of the composite web are formed from two webs (the first web and the second web) overlapping each other. Therefore, depending on the stretching ratio of the waist elastic member interposed between the webs, when the waist elastic member contracts in the machine direction, the contraction force increases on both sides of the composite web.
- the diaper manufactured by this manufacturing method a large number of crepe-like irregular wrinkles are generated at the waist end defined from both sides of the composite web due to the contraction force of the waist elastic member. If crepe-like wrinkles are formed on the circumference of the torso, wrinkles may come into contact with the wearer's skin while wearing the diaper, causing scars to appear on the skin, or discomfort due to the wrinkles being cut into the skin.
- An object of the present invention is to provide a method for producing a disposable diaper in which wrinkles are less likely to be generated at the peripheral end of the body and there is no discomfort during wearing. Disclosure of the invention
- the premise of the present invention for solving the above-mentioned problems is that the composite web is composed of a composite web and a liquid-absorbing laminated panel attached inside the composite web. This is a method for manufacturing disposable diapers.
- this manufacturing method is characterized in that a continuous first web and a continuous second web having a width dimension larger than that of the first web are supplied in the machine direction while being stretched in the machine direction.
- Member supply means for supplying a continuous waist elastic member extended in the machine direction at a predetermined magnification to the machine direction so as to be located near the inside of both sides in the machine direction of the first web; (1)
- the opposing surfaces of the webs are overlapped such that both side edges of the web are located inside the both side edges in the machine direction of the second work, and the elastic member is attached to at least one opposing surface of the webs.
- a composite web forming means for fixing the webs together to form the composite web, and a plurality of the panels extending in the cross direction are fixed to the non-opposite surface of the first web in the machine direction for a fixed time.
- Panel fixing means for fixing the panel to the non-opposite surface of the first web in a state where the both edges in the cross direction of the panel are located near the inner sides of both sides of the first web; The vicinity of both side edges of the second web is bent inward in the cross direction along both side edges of the first web, and the opposing surface of the second web is made to be opposite to the non-opposing surface of the first web and the panel.
- a web fixing means for fixing to the vicinity of the edge, and a center in the cross direction of the composite web extending between the panels is cut by a first cutting line which substantially forms an annular shape, and both side edges of the first web.
- Web bending means for bending the composite structure and the panel in an intersecting direction along a machine direction center line with the panel inward, so that the composite web overlaps the composite web. Are located on both sides of the first cutting line and extend in the cross direction.
- the manufacturing method includes:
- Adhesive is applied to the first joining area, which is continuous in the machine direction along the opposite sides of the webs along both side edges, and is arranged at a predetermined distance in the machine direction on the opposite faces of the second web.
- an adhesive application means for applying an adhesive to a second joining area reaching the side edge of the first web from the first joining area, wherein the web fixing means includes an opposing surface of the second web.
- the first web is fixed to the non-opposing surface of the first web and the vicinity of the edge of the panel via an adhesive applied to the first and second bonding areas.
- the manufacturing method may be configured such that the non-opposite surface of the first web is in a machine direction through an inside of a crossing direction of both side edges and on an edge of the panel.
- An adhesive is applied to the first joining area which is continuous to the first web, and is arranged on the non-opposite surface of the first web at a predetermined distance in the machine direction and from the first joining area to a side edge of the first web.
- the first web is fixed to the non-opposing surface of the first web and the vicinity of the edge of the panel.
- the second joint area is located between the panels adjacent to each other in the machine direction.
- the liquid-absorbent laminated panel includes a liquid-absorbent core, a liquid-permeable surface sheet covering an upper surface of the core, and a liquid-impermeable cover covering a lower surface of the core.
- the back sheet is formed from at least the top sheet.
- FIG. 1 is a perspective view showing an example of a diaper 1 produced by the manufacturing method according to the present invention.
- FIG. 2 is a partially exploded plan view of the diaper of FIG.
- FIG. 3 is an end view of the line II-II in FIG.
- Fig. 4 is an end view of the line IV-IV in Fig. 2.
- FIG. 5 is a process perspective view showing an example of a method for manufacturing a disposable diaper.
- FIG. 6 is a process perspective view of the manufacturing method continued from FIG.
- FIG. 7 is an enlarged view showing an adhesive application unit and a web fixing unit.
- FIG. 8 is a process perspective view of a manufacturing method shown as another example.
- FIG. 9 is a process perspective view of the manufacturing method continued from FIG.
- FIG. 10 is an enlarged view showing the adhesive applying means and the web fixing means.
- FIG. 1 and 2 are a perspective view showing an example of a diaper 1 produced by the manufacturing method according to the present invention, and a portion of the diaper 1 in FIG. 1 showing a state in which the front and rear waist regions 4 and 6 are disconnected.
- Fig. 3 and Fig. 4 are end views taken along the line III-III in Fig. 2 and end views taken along the line IV-IV in Fig. 2.
- the waist direction is indicated by arrow L
- the vertical direction is indicated by arrow M
- the leg circumference is indicated by arrow N (Fig. 1 only).
- the diaper 1 is composed of a composite web 2 located on the non-skin contact side and a liquid-absorbing laminated panel 3 attached inside the composite web 2. Has been established.
- the diaper 1 has a front waist region 4 and a rear waist region 6 facing each other, and a crotch region 5 located between the waist regions 4 and 6.
- the diaper 1 is located outside the both ends 7 of the panel 3 and extends around the front and rear waist areas 4 and 6 in the waist direction.
- the diaper 1 is located outside the both sides 8 of the panel 3
- a waist side 10 extending vertically in the waist regions 4 and 6 and a leg surrounding 11 extending outside the both sides 8 of the panel 3 and extending the crotch region 5 in the leg direction.
- the leg-surrounding side portion 11 forms an arc toward the inside of the diaper 1 in the waist direction.
- the diaper 1 has a substantially hourglass shape in its developed plane shape.
- the waist side portions 10 overlap in a palm-shape manner, and the waist side portions 10 are fixed to each other through a number of heat fusion wires 12 intermittently arranged in the vertical direction.
- the diaper 1 has a waist opening 13 surrounded by a waist end 9 and a pair of leg openings 14 surrounded by leg side portions 11.
- the composite web 2 is formed of a first web 15 and a second web 16 located outside the first web 15.
- the first web 15 and the second web 16 are intermittently fixed via an adhesive (not shown) applied to at least one of the webs 15 and 16.
- the second web 16 has a longitudinal dimension larger than that of the first web 15.
- an edge 19 extends longitudinally outward from the edge 17 of the first web 15, and the edge 19 extends along the edge 17 of the first web 15.
- the inside of the diaper 1 is bent inward in the vertical direction.
- the end 19 of the second web 16 is connected to the end 18 of the first web 15 and the end 7 of the panel 3 via the first joint area 21 and the second joint area 22. And is fixed to.
- the first joining area 21 extends continuously in the waist direction along the edge 20 of the second web 16.
- the first web 15 continuously extends inward in the longitudinal direction of the edge 17 of the first web 15 in the waist direction.
- the second joining area 22 is formed on the waist side 10 and extends from the first joining area 21 to the edge 17 of the first web 15.
- the adhesive B is spirally applied to the first and second joint areas 21 and 22.
- a non-bonding area 23 where no adhesive is applied is formed between the second bonding areas 22 and above the end 7 of the panel 3.
- the ends 18 and 19 of the first and second webs 15 and 16 are not fixed to each other, and the ends 18 and 19 are free from each other. are doing.
- a plurality of waist elastic members 24 extending in the waist direction along the waist opening 13 are attached to the waist end 9 in a contractible manner.
- the waist elastic member 24 passes through the second joint region 22 and the non-join region 23.
- a plurality of leg elastic members 25 extending in the leg-circumferential direction along the leg-circumferential openings 14 are shrinkably attached to the leg-circumferential side portion 11.
- the waist elastic member 24 and the leg elastic member 25 are interposed between the first and second webs 15 and 16, and the webs 15 and 16 are bonded to each other with an adhesive (not shown). ) Is intermittently fixed via.
- the panel 3 has an area smaller than that of the composite web 2 and has a rectangular shape elongated in the longitudinal direction.
- the panel 3 extends between the front and rear waist regions 4 and 6 and is disposed at the center of the regions 4 and 6.
- Panel 3 includes a liquid-permeable surface sheet 26 located on the skin contact side, a liquid-impermeable back sheet 27 located on the non-skin contact side, and front and back sheets 26, 27. And a liquid-absorbent core 28 interposed therebetween.
- core 28 has its entire upper surface covered with a front sheet 26 and its entire lower surface covered with a rear sheet 27.
- the core 28 is intermittently fixed to the front and back sheets 26 and 27 via an adhesive (not shown).
- the panel 3 is formed of front and back sheets 26 and 27, both ends 7 of which extend vertically outward from both ends 29 of the core 28, and both sides 8 of which are formed on both sides of the core 28. It is formed of front and back sheets 26 and 27 extending laterally outward from 30. At both ends 7 and both sides 8 of the panel 3, the front and back sheets 26, 27 are fixed so as to overlap each other. In the panel 3, the back sheet 27 forming the same is fixed to the first web 15 via an adhesive (not shown).
- the waist end 9 of the diaper 1 is formed of three layers in which the end 18 of the first web 15 is interposed between the folded second webs 16.
- the end 19 of the second web 16 located inside the diaper 1 comes into contact with the wearer's skin.
- the elastic member 24 is positioned horizontally. Even if the contraction force acts on the end 19 of the second web 16, the effect is small, and wrinkles are not easily formed on the end 19 of the second web 16.
- the contraction force of the elastic member 24 causes the second web 16 It has only a slight effect on the end 19, and does not have many crepe-like wrinkles on the end 19.
- the panel may be formed of a liquid-permeable top sheet 26 and a liquid-absorbing core 28. In this case, the core 28 and the surface sheets 26 located on both ends 7 and both sides 8 of the panel 3 are adhered to the first web 15 via an adhesive (not shown). .
- FIGS. 5 and 6 are a process perspective view showing an example of a manufacturing method of the disposable diaper 1 and a process perspective view of a manufacturing method following FIG. 5, and FIG. 7 shows an adhesive applying means S-4 and a web fixing means.
- FIG. 5 is an enlarged view of S-5.
- the machine direction is indicated by an arrow X
- the cross direction is indicated by an arrow Y.
- the opposing surfaces 31, 34 of the first and second webs 15, 16 refer to the surfaces of the webs 15, 16 facing each other, and the non-opposing surfaces 3 of the webs 15, 16. 2, 3 5 mean the surface opposite to the opposing surfaces 3 1, 3 4.
- the outline of this manufacturing method is as follows. (1) While supplying the continuous first web 15 and the continuous second web 16 in the machine direction, the continuous waist elastic member 24 is supplied in the machine direction (member supply means S-1). (2) The elastic member 24 is fixed to the first and second webs 15 and 16 and the webs 15 and 16 are fixed to each other to form a composite web 2 (composite web manufacturing means S-2). ). (3) The panel 3 is fixed to the first web 15 (panel fixing means S-3). (4) Apply the adhesive B to the first and second joint areas 21 and 22 (adhesive applying means S-4). (5) The vicinity of both side edges 36 of the second web 16 bent inward in the cross direction is fixed to the first web 15 and the panel 3 via the adhesive B (the tape fixing means S— Five ).
- the first continuous web 15 and the second continuous web 16 correspond to the first web 15 and the second web 16 of the diaper 1 in FIG. 1. It corresponds to the waist elastic member 24 of the diaper 1 in FIG.
- S-1 to S-7 in this method will be described.
- the first first EB 15 and the second continuation 16 are continuously supplied in the machine direction by the member supply means S-1, and a plurality of continuous elastic members for the waist are provided. 24 is continuously supplied in the machine direction.
- the first and second tubes 15, 16 and the waist elastic member 24 are provided with a nipro (not shown) sandwiching the webs 15, 16 and a drive contacting the webs 15, 16. It moves at a constant speed forward in the machine direction indicated by arrow X1 by using the rotation of a roll (not shown).
- the first and second webs 15 and 16 are pulled forward in the machine direction, and are in a tensioned state without slack in the machine direction.
- the first pipe 15 has a facing surface 31 and a non-facing surface 32 and has both side edges 33 extending in the machine direction.
- a plurality of leg elastic members 25 extending in the cross direction are attached in an extended state.
- the elastic members 25 are arranged at a given distance in the machine direction. Adhesive (not shown) applied to either the opposing surface 31 of the first web 15 or the elastic member 25 is used to fix the elastic member 25 to the first web 15. Have been.
- the second web 16 has a facing surface 34 and a non-facing surface 35 And both side edges 36 extending in the machine direction.
- the width of the second web 16 between the side edges 36 is larger than that of the first web 15.
- the waist elastic member 24 is extended at a predetermined magnification in the machine direction, and moves forward at a constant speed in the machine direction.
- the elastic member 24 enters between the first and second webs 15 and 16 along the vicinity of the inside of both side edges 33 of the first web 15.
- the composite web producing means S-2 is arranged such that the machine direction center line 37 of the first web 15 and the machine direction center line 38 of the second web 16 coincide with each other.
- the opposing surfaces 31, 34 of the webs 15, 16 are overlapped, and the webs 15, 16 are fixed together to form a composite web 2.
- the elastic member 24 is fixed to at least one of the opposing surfaces 31, 34 of the webs 15, 16.
- both side edges 33 of the first web 15 are located inside both side edges 36 of the second web 16.
- An adhesive (not shown) applied intermittently is used.
- Panel fixing means S-3 In the panel fixing means S-3, a number of liquid absorbing panels 3 extending in the cross direction are sequentially supplied.
- the panel 3 is fixed to the non-facing surface 32 of the first web 15 after being arranged at regular intervals in the machine direction on the non-facing surface 32 of the first web 15.
- the panel 3 is located between the elastic members 25, and both ends 39 in the cross direction are located near the inside of the both sides 33 of the first web 15.
- Panel 3 is made of a liquid-absorbent core 28, a liquid-permeable top sheet 26 covering the entire upper surface of the core 28, and a liquid-impermeable material covering the entire lower surface of the core 28.
- the back sheet 27 is formed. At both end portions 7 and both side portions 8 of the panel 3, the front and back sheets 26, 27 are fixed so as to overlap each other. In the panel 3, the back sheet 27 forming the same is fixed to the non-opposing surface 32 of the first web 15. To fix the panel 3 to the first web 15, at least one of the non-opposite surface 32 and the back sheet 27 of the first web 15 is intermittently coated with an adhesive (shown in FIG. Is used.
- Adhesive applying means S-4 In the adhesive applying means S-4, the adhesive B is applied from the adhesive coating head 40 to the first joint area 21 and the second joint area 22. As shown in FIG. 7, the first joining area 21 is formed on the facing surface 34 of the second web 16 and continuously extends in the machine direction along both side edges 36 of the second web 16. I have.
- the second joint area 22 is formed on the facing surface 34 of the second web 16, is arranged at a given distance in the machine direction, and has a side edge 3 3 from the first joint area 21 to the first web 15. Has been reached.
- the second joint area 22 is located between the panels 3 adjacent in the machine direction.
- a non-bonding area 23 where no adhesive B is applied is formed between the second bonding areas 22 adjacent in the machine direction.
- the second joint area 22 and the non-join area 23 are alternately arranged in the machine direction.
- Adhesive B is applied spirally in the machine direction.
- the adhesive B can be applied in a zigzag shape, a dot shape, or a striped shape, in addition to the spiral shape.
- the vicinity of both side edges 36 of the second web 16 is bent inward in the cross direction along the both side edges 33 of the first web 15. Then, the facing surface 34 of the second web 16 is brought into contact with the non-facing surface 3 2 of the first web 15 and the panel 3 through the adhesive B applied to the first and second joint areas 21, 22. Edge 3 It is fixed to around 9
- the waist elastic member 24 is in the second joint area
- the second web 16 In the bending of the second web 16, there are a guide roll 41 arranged on the non-opposite surface 32 of the first web 15 and extending in the cross direction, and a guide roll 41 located immediately after the guide roll 41. And a pair of guide fittings 43 disposed opposite to each other.
- the second web 16 is held by both ends 42 of the guide roll 41 near both sides 36 so that the vicinity of both sides 36 does not bend before entering the guide fitting 43. Have been.
- the vicinity of both side edges 36 of the second web 16 enters the lower surface of the guide fitting 43 immediately after passing through the guide roll 41, and turns inward in the cross direction toward the center lines 37, 38. Be included.
- both sides of the second web 16 bent toward the center lines 37 and 38 are used.
- the adhesive B does not exist inward in the cross direction from the edge 36, and the adhesive B does not remain except for the part of the webs 15 and 16 to be bonded.
- the center part 4 4 in the cross direction of the composite web 2 extending between the panels 3 adjacent to each other in the machine direction (surrounded by the elastic members 25 around the legs). Is cut along the first cutting line 45 which substantially forms an annular shape, and the composite web is placed with the panel 3 inside so that the side edges 33 of the first web 16 coincide with each other. 2 and panel 3 are bent inward in the cross direction along centerlines 37 and 38.
- the cutting of the central portion 4 4 cuts the composite web 2 and the panel 3 by the center line 3
- the adhesive B applied to the second joint area 22 is used.
- the first and second webs 15 and 16 are fixed and the adhesive B is not applied to the first and second webs 15 and 16.
- the contraction force of the waist elastic member 25 acts near the side edges 33, 36 of the webs 15, 16, the contraction force of the elastic member 25 acts. Is suppressed in the second joint area 22 intermittently arranged in the machine direction, so that the action of the contraction force can be reduced.
- the shrinkage force of the waist elastic member 25 is close to the side edges 33, 36 of the first and second webs 15, 15. Because of the large action, the webs 15 and 16 have both sides 33 and 36 near cylindrical edges deformed in a cylindrical shape, and the webs 15 and 16 have both sides 33 and 36 near intersections. Deforms in a wavy manner.
- the vicinity of the side edges 33, 36 of the webs 15, 16 is deformed, when the composite web 2 and the panel 3 are bent inward in the cross direction along the center lines 37, 38, The side edges 3 3 of the first web 15 cannot be matched, and the side edges 3 3 are displaced from each other.
- the action of the contraction force of the waist elastic member 25 near the side edges 33, 36 of the webs 15, 16 is small, and the side edges of the webs 15, 16 are small.
- the composite web 2 and the panel 3 are bent along the center lines 37 and 38, the side edges 33 of the first web 15 are not deformed because the vicinity of 33 and 36 is not deformed. They can be surely matched, and the side edges 3 3 of the first pipe 15 do not shift from each other.
- Diaper making means S-7 In diaper making means S-7, the overlapping composite webs 2 are fixed in the vicinity of the second cutting line 46 which is located on both sides of the first cutting line 45 and extends in the cross direction. With the complex Step 2 is cut at the second cutting line 46.
- the diaper manufacturing means S-7 a large number of diapers 1 (see Fig. 1) lined up in the machine direction.
- the composite webs 2 are fixed to each other via a large number of heat fusion wires 12 intermittently arranged in the cross direction on both sides of the second cutting line 46 in the machine direction.
- the diaper 1 manufactured by this manufacturing method has front and rear waist regions 4 and 6 facing each other, a crotch region 5 located between the waist regions 4 and 6, and a diaper 1 surrounded by a waist end 9. It has a torso opening 13 and a pair of leg openings 14 surrounded by leg side portions 11.
- the waist end 9 of the diaper 1 is defined by the vicinity of both side edges 3 3, 3 4 of the first and second tubs 15, 16.
- the waist end 9 of the diaper 1 is formed of three layers in which the first web 15 is interposed between the folded second webs 16 (see FIGS. 3 and 4), the waist elastic member is provided. Even if the contraction force of 24 acts on the second web 16, the effect is small and wrinkles are not easily formed on the second web 16.
- the portions 33, 34 near both side edges of the first and second webs 15, 15, 16 are separated from each other. It has little effect on the sides 34 near both edges, and does not cause many crepe-like wrinkles around 34 near both sides. According to this manufacturing method, it is possible to continuously manufacture the disposable diaper 1 excellent in a feeling of wearing, in which wrinkles are hardly generated at the waist end 9.
- FIG. 8 and 9 are a process perspective view of the manufacturing method shown as another example, and a process perspective view of the manufacturing method continued from FIG. 8, and FIG. 10 shows the adhesive applying means S-4 and the web fixing. It is a figure which expands and shows means S-5. 8 and 9, the machine direction is indicated by arrow X and the cross direction is indicated by arrow Y.
- the continuous first ⁇ web 15 and the continuous second web 16 having a width dimension larger than that of the first web 15 are continuously formed in the machine direction.
- the plurality of continuous waist elastic members 24 are supplied continuously in the machine direction.
- the first and second webs 15 and 16 and the waist elastic member 24 move at a constant speed forward in the machine direction indicated by the arrow X1.
- the first and second pipes 15 and 16 are in a state of being tensioned without slack in the machine direction.
- a plurality of leg elastic members 25 extending in the cross direction are attached in an extended state.
- the waist elastic member 24 is in a state of being elongated at a predetermined magnification in the machine direction, and is arranged near the inside of both side edges 33 of the first web 15 o
- the composite tube preparing means S-2 is arranged such that the machine direction center line 37 of the first tube 15 and the machine direction center line 38 of the second tube 16 coincide with each other.
- the opposing surfaces 31, 34 of the webs 15, 16 are superimposed, and the webs 15, 16 are fixed together via an adhesive (not shown) to form a composite tape 2.
- the elastic members 24 are fixed to the opposing surfaces 31 and 34 of the webs 15 and 16 via an adhesive (not shown).
- both side edges 33 of the first web 15 are located inside both side edges 36 of the second web 16.
- Panel fixing means S-3 In the panel fixing means S-3, the liquid-absorbing laminated panel 3 is arranged on the non-opposite surface 32 of the first web 15 at regular intervals in the machine direction, and then the first web 15 Is fixed to the non-opposing surface 32.
- the panel 3 is located between the elastic members 25, and both edges 39 in the cross direction are located near the inside of the both edges 33 of the first web 15.
- the panel 3 is formed of a liquid-absorbent core 28 and a liquid-permeable topsheet 26 covering the entire upper surface of the core 28.
- the core 28 and the surface sheet 26 extending to both ends 7 and both sides 8 of the panel 3 are bonded to the non-opposite surface 32 of the first tube 15 with an adhesive (not shown). It is fixed.
- the adhesive B is applied to the first joining area 21 and the second joining area 22 from the adhesive applying head 40.
- the first joining area 21 is formed on the non-opposite surface 32 of the first web 15, and moves inward in the cross direction of the side edges 33 of the first web 15 in the machine direction. It extends continuously.
- the first joint area 21 passes over the edge 39 of the panel 3.
- the second joint area 22 is formed on the non-opposite surface 32 of the first web 15 and is arranged at a predetermined distance in the machine direction, and the side edge 3 of the first web 15 from the first joint area 21. 3 has been reached.
- a non-bonding area 23 to which the adhesive B is not applied is formed between the second bonding areas 22 adjacent in the machine direction.
- the second joint areas 22 and the non-join areas 23 are alternately arranged in the machine direction.
- the vicinity of both side edges 36 of the second web 16 is bent inward in the cross direction along the both side edges 33 of the first web 15 in the web fixing means S-5. Then, the opposing surface 34 of the second web 16 is connected to the non-opposing surface 3 2 of the first web 15 and the panel 3 through the adhesive B applied to the first and second joint areas 21 and 22. It is fixed to the vicinity of the edge 39.
- the waist elastic member 24 extends longitudinally through the second joint area 22 and the non-joint area 23.
- the 18-way bracket 43 is used.
- the vicinity of both side edges 36 of the second tube 16 enters the lower surface of the guide fitting 43 immediately after passing through the guide roll 41, and is folded toward the center lines 37, 38.
- the central portion 44 in the cross direction of the composite web 2 extending between the panels 53 is cut off at a first cutting line 45 substantially defining an annular shape. After that, the composite web 2 and the panel 3 cross each other along the center lines 37 and 38 with the panel 3 inside so that the side edges 33 of the first web 15 coincide with each other. It is bent inward.
- the rigidity of the webs 15 and 16 in the second joint area 22 is increased by the adhesive B applied to the second joint area 22, so that the webs 15 and 1 Even if the contraction force of the waist elastic member 25 acts near both side edges 3 3 and 36 of FIG. 6, the action of the contraction force of the elastic member 25 is suppressed in the second joint area 22, and the contraction force Action 5 can be reduced.
- the vicinity of the side edges 33, 36 of the webs 15, 16 is not deformed, and the composite web 2 and the panel 3 are folded inward in the cross direction along the center lines 37, 38. When bending, the side edges 33 of the first web 15 can be surely matched.
- the overlapping composite web 2 is fixed in the vicinity of the second cutting line 46 located on both sides of the first cutting line 45 and extending in the cross direction.
- the web 2 is cut at the second cutting line 46.
- a number of diapers 1 lined up in the machine direction are manufactured.
- the diaper 1 produced by this manufacturing method has front and rear waist regions 4, 6 and a crotch region 5 located between the waist regions 4, 6, and has a waist opening 13 and a pair of leg regions. Opening 14.
- the waist end 9 of the diaper 1 is defined by the vicinity of both side edges 33, 34 of the first and second ridges 15, 15 and 16.
- the waist end 9 of the diaper 1 produced by this manufacturing method is formed of three layers with the first web 15 interposed between the folded second webs 16, the waist circumference 9 is formed. Even if the contraction force of the elastic member 24 acts on the second web 16, the effect is small and a large number of crepe-like wrinkles do not occur at the waist end 9. According to this method, a disposable diaper 1 excellent in wearing feeling, in which wrinkles are hardly generated at the waist end 9, can be continuously produced.
- the first and second webs 15 and 16 have a hydrophobic fiber non-woven fabric, a gas-impermeable liquid-impermeable plastic film, a composite non-woven fabric made by laminating two hydrophobic fiber non-woven fabrics, and a hydrophobic fiber non-woven fabric.
- a composite sheet laminated with an impermeable plastic film can be used.
- a hydrophilic fiber non-woven fabric can be used for the surface sheet 26.
- either a hydrophobic fiber nonwoven fabric or a gas-impermeable liquid-impermeable plastic film can be used.
- Fiber non-woven fabric it is possible to use spun lace, 21 dollar punch, melt blown, thermal bond, snow bond, chemical bond, and hair through. it can.
- Polyolefin-based, polyester-based, polyamide-based fibers, core-sheath type composite fibers or polyethylene-polyester / polyethylene / polyester core-sheath type fibers or parallel type composite fibers are used as non-woven fabric constituent fibers. Can be used. It is preferable to use a polyolefin-based thermoplastic synthetic resin for the plastic film.
- Core 28 is a blend of fluff pulp and superabsorbent polymer particles. It is a compound or a mixture of fluff pulp, superabsorbent polymer particles and thermoplastic synthetic resin fibers, and is compressed to a predetermined thickness.
- the core 28 is preferably entirely covered with a tissue paper in order to prevent its shape and polymer particles from falling off.
- the adhesive B either a hot-melt adhesive, a acrylic adhesive, or a rubber adhesive can be used. According to the method for manufacturing a disposable diaper according to the present invention, the vicinity of both side edges of the second web is bent inward in the cross direction along both side edges of the first web, and the opposing surface of the second web is formed on the first web.
- the action of the contraction force of the waist elastic member is suppressed in the second joint area intermittently arranged in the machine direction, and the shrinkage is suppressed. Since the action of the force can be reduced, the vicinity of both side edges of the webs is not deformed by the contraction force of the waist elastic member. When the flanks are bent along the center line, both side edges of the first web can be surely matched.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03812700A EP1574191A4 (en) | 2002-12-10 | 2003-12-02 | PROCESS FOR PRODUCING A DISPOSABLE THREAD |
| AU2003302885A AU2003302885A1 (en) | 2002-12-10 | 2003-12-02 | Disposable diaper producing method |
| KR1020057010426A KR100656772B1 (ko) | 2002-12-10 | 2003-12-02 | 일회용 기저귀의 제조 방법 |
| CN200380105610.8A CN100569202C (zh) | 2002-12-10 | 2003-12-02 | 用于制造一次性尿布的方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002358465A JP4318451B2 (ja) | 2002-12-10 | 2002-12-10 | 使い捨ておむつの製造方法 |
| JP2002-358465 | 2002-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004052258A1 true WO2004052258A1 (ja) | 2004-06-24 |
Family
ID=32463445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/015446 Ceased WO2004052258A1 (ja) | 2002-12-10 | 2003-12-02 | 使い捨ておむつの製造方法 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7160408B2 (ja) |
| EP (1) | EP1574191A4 (ja) |
| JP (1) | JP4318451B2 (ja) |
| KR (1) | KR100656772B1 (ja) |
| CN (1) | CN100569202C (ja) |
| AU (1) | AU2003302885A1 (ja) |
| MY (1) | MY136165A (ja) |
| TW (1) | TWI253330B (ja) |
| WO (1) | WO2004052258A1 (ja) |
Cited By (2)
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|---|---|---|---|---|
| US7708857B2 (en) | 2004-11-19 | 2010-05-04 | Uni-Charm Corporation | Process for making disposable wearing article |
| US7972459B2 (en) | 2004-08-31 | 2011-07-05 | Uni-Charm Corporation | Method for making pull-on disposable wearing article |
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| DE102005048868A1 (de) * | 2005-10-12 | 2007-04-19 | Paul Hartmann Ag | Verfahren zum Herstellen einer Vielzahl von einen Windelhauptteil und daran angefügte vordere und hintere Windelseitenteile aufweisenden Inkontinenzwegwerfwindeln |
| EP2020972B1 (en) * | 2006-05-12 | 2012-11-07 | SCA Hygiene Products AB | A pant-type absorbent article and a method for producing pant-type absorbent articles. |
| JP4975807B2 (ja) * | 2006-05-12 | 2012-07-11 | エスセーアー・ハイジーン・プロダクツ・アーベー | 弾性ラミネートおよび弾性ラミネートを製造するための方法 |
| US8409066B2 (en) | 2006-07-31 | 2013-04-02 | Kimberly-Clark Worldwide, Inc. | Method and apparatus for folding a web |
| EP2087871B1 (en) * | 2006-11-27 | 2015-03-18 | Kao Corporation | Absorbent article |
| JP5041840B2 (ja) * | 2007-03-23 | 2012-10-03 | 花王株式会社 | 吸収性物品 |
| CA2851763A1 (en) * | 2006-12-04 | 2008-06-12 | The Procter & Gamble Company | Absorbent articles comprising graphics |
| JP4912200B2 (ja) * | 2007-03-30 | 2012-04-11 | 大王製紙株式会社 | パンツ型使い捨ておむつ及びその製造方法 |
| DE102007024180A1 (de) | 2007-05-24 | 2008-11-27 | Paul Hartmann Ag | Verfahren zur Herstellung einer Windel |
| WO2008147270A1 (en) | 2007-05-31 | 2008-12-04 | Sca Hygiene Products Ab | Convertible absorbent article |
| EP2638888B1 (en) * | 2007-09-05 | 2015-01-28 | Uni-Charm Corporation | Absorbent Article |
| JP5270126B2 (ja) | 2007-09-05 | 2013-08-21 | ユニ・チャーム株式会社 | 使い捨ておむつの製造方法 |
| DE102007063209A1 (de) | 2007-12-20 | 2009-06-25 | Paul Hartmann Aktiengesellschaft | Verfahren zum Herstellen von Inkontinenzartikeln in Höschenform |
| JP5192905B2 (ja) * | 2008-05-22 | 2013-05-08 | 花王株式会社 | 吸収性物品及び吸収性本体保持カバー |
| US20100028635A1 (en) * | 2008-07-30 | 2010-02-04 | General Electric Company | Edge laminated roll goods |
| JP5318490B2 (ja) * | 2008-08-07 | 2013-10-16 | ユニ・チャーム株式会社 | 切断装置及び吸収性物品の製造方法 |
| DE102008046358A1 (de) * | 2008-09-09 | 2010-03-11 | Paul Hartmann Ag | Absorbierende Inkontinenzwegwerfwindel |
| US8171972B2 (en) | 2009-01-30 | 2012-05-08 | The Procter & Gamble Company | Strip guide for high-speed continuous application of a strip material to a moving sheet-like substrate material at laterally shifting locations |
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| US20100193135A1 (en) * | 2009-01-30 | 2010-08-05 | Joseph Allen Eckstein | System and Method for High-Speed Continuous Application of a Strip Material to a Moving Sheet-Like Substrate Material at Laterally Shifting Locations |
| US8182627B2 (en) * | 2009-01-30 | 2012-05-22 | The Procter & Gamble Company | Method for high-speed continuous application of a strip material to a substrate along an application path on the substrate |
| US8696855B2 (en) * | 2009-07-10 | 2014-04-15 | Kimberly-Clark Worldwide, Inc. | Simplified absorbent article construction and method of making |
| JP5443101B2 (ja) * | 2009-08-31 | 2014-03-19 | ユニ・チャーム株式会社 | 折畳装置 |
| JP5602523B2 (ja) * | 2010-07-05 | 2014-10-08 | 株式会社リブドゥコーポレーション | 使い捨ておむつ |
| JP5651395B2 (ja) | 2010-07-14 | 2015-01-14 | 株式会社リブドゥコーポレーション | 使い捨ておむつ |
| RU2639631C2 (ru) * | 2010-09-16 | 2017-12-21 | ДиЭсДжи ТЕКНОЛОДЖИ ХОЛДИНГС ЛТД. | Изделие с эластичным включением, система и способ его получения |
| US8491741B2 (en) | 2010-12-29 | 2013-07-23 | Kimberly-Clark Worldwide, Inc. | Method of forming elastomeric laminates having targeted elastic properties for use in personal care articles |
| CN102579198B (zh) * | 2012-02-20 | 2014-06-18 | 福建益川自动化设备股份公司 | 一种生产简易训练裤的方法及其加工装置 |
| WO2014004453A1 (en) | 2012-06-29 | 2014-01-03 | The Procter & Gamble Company | System and method for high-speed continuous application of a strip material to a moving sheet-like substrate material |
| US20140274642A1 (en) * | 2013-03-15 | 2014-09-18 | The Procter & Gamble Company | Methods for manufacturing disposable absorbent refastenable articles comprising folded fastening tab members |
| JP6112981B2 (ja) * | 2013-06-12 | 2017-04-12 | 株式会社リブドゥコーポレーション | 吸収性物品 |
| WO2015094568A1 (en) | 2013-12-19 | 2015-06-25 | The Procter & Gamble Company | Methods and apparatuses for making absorbent articles having contoured belts |
| JP5899255B2 (ja) * | 2014-02-28 | 2016-04-06 | ユニ・チャーム株式会社 | 吸収性物品製造方法 |
| ES2904994T3 (es) | 2014-10-24 | 2022-04-06 | Joa Curt G Inc | Aparato y método de plegado |
| US10517773B2 (en) | 2014-12-18 | 2019-12-31 | The Procter & Gamble Plaza | Apparatuses and methods for making absorbent articles |
| US11007092B2 (en) * | 2014-12-18 | 2021-05-18 | The Procter & Gamble Company | Apparatuses and methods for making absorbent articles with low intensity side seam regions |
| EP3346965B1 (en) * | 2015-09-09 | 2020-10-21 | Essity Hygiene and Health Aktiebolag | Method of producing a chassis web with a waistband component and disposable pant article produced from the chassis web |
| WO2017105947A1 (en) | 2015-12-16 | 2017-06-22 | The Procter & Gamble Company | Assembled absorbent article components with graphics having aligned masked zones |
| JP2017121386A (ja) * | 2016-01-07 | 2017-07-13 | 花王株式会社 | パンツ型吸収性物品 |
| MX2018010721A (es) * | 2016-03-28 | 2019-01-21 | Kimberly Clark Co | Metodo para aplicacion de hebras elasticas. |
| AU2017426418B2 (en) * | 2017-07-31 | 2023-12-21 | Kimberly-Clark Worldwide, Inc. | Elasticized absorbent articles and methods of forming elasticized absorbent articles |
| KR102168186B1 (ko) | 2020-05-27 | 2020-10-20 | 한성윤 | 거동이 불편한 사람을 위한 기저귀 |
| IT202000024730A1 (it) * | 2020-10-20 | 2022-04-20 | M D Viola Macch S R L | Dispositivo e metodo per piegare un nastro composito in un impianto e processo per la produzione di pannolini a mutandina |
| CN120678595A (zh) * | 2025-07-31 | 2025-09-23 | 露乐健康科技股份有限公司 | 一种裤型卫生用品的制作方法与裤型卫生用品 |
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- 2003-12-02 CN CN200380105610.8A patent/CN100569202C/zh not_active Expired - Lifetime
- 2003-12-02 WO PCT/JP2003/015446 patent/WO2004052258A1/ja not_active Ceased
- 2003-12-02 EP EP03812700A patent/EP1574191A4/en not_active Withdrawn
- 2003-12-02 AU AU2003302885A patent/AU2003302885A1/en not_active Abandoned
- 2003-12-03 MY MYPI20034619A patent/MY136165A/en unknown
- 2003-12-03 US US10/725,584 patent/US7160408B2/en not_active Expired - Lifetime
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7972459B2 (en) | 2004-08-31 | 2011-07-05 | Uni-Charm Corporation | Method for making pull-on disposable wearing article |
| US8419882B2 (en) | 2004-08-31 | 2013-04-16 | Uni-Charm Corporation | Method for making pull-on disposable wearing article |
| US7708857B2 (en) | 2004-11-19 | 2010-05-04 | Uni-Charm Corporation | Process for making disposable wearing article |
| CN101060823B (zh) * | 2004-11-19 | 2010-10-06 | 尤妮佳股份有限公司 | 一次性穿着物品的制造方法 |
| US8012296B2 (en) | 2004-11-19 | 2011-09-06 | Uni-Charm Corporation | Process for making disposable wearing article |
Also Published As
| Publication number | Publication date |
|---|---|
| US20040108043A1 (en) | 2004-06-10 |
| TWI253330B (en) | 2006-04-21 |
| JP2004187873A (ja) | 2004-07-08 |
| KR100656772B1 (ko) | 2006-12-14 |
| JP4318451B2 (ja) | 2009-08-26 |
| EP1574191A1 (en) | 2005-09-14 |
| KR20050084214A (ko) | 2005-08-26 |
| AU2003302885A1 (en) | 2004-06-30 |
| MY136165A (en) | 2008-08-29 |
| EP1574191A4 (en) | 2011-08-03 |
| US7160408B2 (en) | 2007-01-09 |
| TW200418402A (en) | 2004-10-01 |
| CN1723000A (zh) | 2006-01-18 |
| CN100569202C (zh) | 2009-12-16 |
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