WO2009123212A1 - 吸収性物品の製造方法及び吸収性物品の製造装置 - Google Patents
吸収性物品の製造方法及び吸収性物品の製造装置 Download PDFInfo
- Publication number
- WO2009123212A1 WO2009123212A1 PCT/JP2009/056711 JP2009056711W WO2009123212A1 WO 2009123212 A1 WO2009123212 A1 WO 2009123212A1 JP 2009056711 W JP2009056711 W JP 2009056711W WO 2009123212 A1 WO2009123212 A1 WO 2009123212A1
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- WIPO (PCT)
- Prior art keywords
- flap
- line
- waistline member
- absorbent article
- continuum
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15756—Applying tabs, strips, tapes, loops; Knotting the ends of pads
Definitions
- Patent Document 1 The manufacturing method which provides a side flap in such an open type diaper by the following processes is known (for example, Patent Document 1).
- the cuttable line and the MD direction are orthogonal to each other on the flap line that conveys the flap continuum (continuous belt portion). For this reason, if the strength of the cuttable line is increased so that the cuttable line is not cut on the flap line, it becomes difficult for the user of the manufactured diaper to cut the cuttable line. was there.
- a feature of the present invention is a method for manufacturing an absorbent article comprising a front waistline member, a rear waistline member, and a crotch member for connecting the front waistline member and the rear waistline member, which is continuously conveyed on a flap line.
- a predetermined region is engaged on both sides of a center line along the direction of conveyance of the flap line or the direction intersecting with the direction of conveyance of the flap line.
- An arrangement step of arranging possible engaging members, a cutable line forming step of forming a cuttable line along the center line, and a continuous body of the front waistline member and a continuous body of the rear waistline member are conveyed.
- cuttable line 50 does not need to be formed so as to completely coincide with the above-described center line C1, and may be linear as long as it is along the center line C1, It may be curved.
- step S22 in the region 30A constituting one flap in the continuous body 130 of long flaps continuously conveyed on the flap line, the center along the CD direction (direction intersecting the conveyance direction) of the flap line.
- step S22 in the region 30A constituting one flap in the continuous body 130 of long flaps continuously conveyed on the flap line, the center along the CD direction (direction intersecting the conveyance direction) of the flap line.
- step S31 a continuous body of a pair of elongated waistline members (a front waistline member continuum 120b and a back waistline member continuum 120a) is generated from the nonwoven fabric and conveyed in the MD direction of the main body line.
- the front waistline member continuum 120b and the rear waistline member continuum 120a may have elasticity.
- step S32 a state in which the continuous body 120b of the long front waistline member continuously conveyed on the main body line and the continuous body 120a of the long rear waistline member are separated from each other in the MD direction of the main body line Then, the crotch member 10 formed in step S15 is disposed on the absorber line.
- each of the regions 30A constituting one flap 30 in the flap continuum 130 and one absorbent article (the rear waistline member 20a) in the rear waistline member continuum 120a are configured on the main body line.
- the flap continuum 130 and the rear waistline member continuum 120a are joined so as to correspond to each of the regions 20A.
- the flap continuum 130 and the rear waistline member continuum 120a are joined so that the engagement members 40a and 40b are arranged near the center of the rear waistline member 20a.
- Step S33 the region 30A constituting one flap 30 in the flap continuum 130 and the region 20A constituting one absorbent article (the rear waistline member 20a) in the continuum 120a of the rear waistline member are absorbed. It is preferable to join along the edge part in the width direction of a property article.
- step S33 it is preferable that the flap continuum 130 is bonded onto the rear waistline member 20a by an embossing roller, thermocompression bonding using ultrasonic waves, or the like.
- a thermoplastic resin may be applied along the end portions A1 and A2 of the flap 30. It is preferable to join by an embossing roller or thermocompression bonding using ultrasonic waves.
- the thermoplastic resin may be applied to the entire back surface side of the flap continuum 130, or the thermoplastic resin may be applied only to a part of the back surface side of the flap continuum 130.
- step S34 the cuttable line 50 is broken on the main body line. Specifically, as shown in FIG. 2, the tension T1 in the process after the flap joining step S33 on the main body line is made stronger than the tension T2 in the process before the flap joining process S33 on the main body line. As a result, the cuttable wire 50 is broken.
- step S35 the front waistline member continuum 120b and the back waistline member continuum 120a are cut along the CD direction of the body line at predetermined intervals on the body line.
- the front waistline member continuum so that the length L3 of the front waistline member 20b in the width direction of the absorbent article is equal to the length L2 of the rear waistline member 20a in the width direction of the absorbent article. 120b and the continuous body 120a of the rear waistline member are cut.
- this invention is not limited to this example, The flap by which the engaging members 40a and 40b which can be engaged with the predetermined area
- positioned This example is also applicable to an example in which the continuum 130 is arranged on the continuum 120b of the front waistline member.
- the cuttable wire 50 is broken, and the engagement member 40a and 40b are locked to the rear waistline member 20a and temporarily fixed.
- the front waistline member continuum 120b and the rear waistline member continuum 120a are continuously conveyed. Since the end of the continuum 120b and the end of the rear waistline member continuum 120a can be easily folded and overlapped, the overlapped front waistline member continuum 120b and rear waistline member continuum 120a are simultaneously cut.
- An open type diaper and a pant type diaper can be manufactured by the same cutting process. Therefore, an open-type diaper and a pants-type diaper can be manufactured without changing the cutting process and the cutting cutter itself.
- Modification 1 With reference to FIG. 4, the manufacturing method of the absorbent article which concerns on the modification 1 of 1-1st embodiment of this invention is demonstrated.
- the manufacturing method of the absorbent article according to the modified example 1 of the present invention will be described by focusing on the difference from the manufacturing method of the absorbent article according to the 1-1 embodiment of the present invention.
- the pair of rollers 200A and 200B is not necessarily used in step S34, and the above-described cuttable line 50 is formed by using a hammer press process. It may break.
- the region including the above-described cuttable line 50 may be heat-treated to form a film of the region.
- the flap continuum 130 is made of polyethylene
- the heat treatment is performed on the region including the cuttable line 50 in the flap continuum 130, the fiber does not stretch and solidifies. The breakage of the line 50 is facilitated.
- Modification 2 With reference to FIG. 5, the manufacturing method of the absorbent article which concerns on the modification 2 of 1-1st embodiment of this invention is demonstrated.
- the manufacturing method of the absorbent article according to the modified example 2 of the present invention will be described focusing on the difference from the manufacturing method of the absorbent article according to the 1-1 embodiment of the present invention.
- step S22 in the flap continuum 130, two cuttable lines (perforations) 50a3 and 50b3 are formed along the center line C1.
- step S22 in a part of the above-described region 30A, a pair of folds that can be folded back in the MD direction of the flap line and the direction opposite to the MD direction in the region including each of the engaging members 40a and 40b.
- the portions 50A and 50B are formed.
- step S34 the two cut-off lines 50a3 and 50b3 are broken in step S34, whereby the folded portions 50A and 50B can be folded.
- step S21 engagement members 40a and 40b that can engage with a predetermined region are arranged on both sides of the center line C2 along the MD direction of the flap line in the flap continuum 130.
- the engaging members 40a and 40b are joined to both sides of a region near the center line C2 of the flap continuum 130 at predetermined intervals.
- step S22 a cuttable line 50 is formed along the center line C2.
- step S23 the flap 30 is formed by cutting the flap continuum 130 along the CD direction of the flap line on the flap line.
- step S33 the flap 30 formed in step S23 is arranged on the continuous body 120a of the rear waistline member so that the center line C2 is orthogonal to the MD direction of the main body line on the main body line.
- the region 20A constituting one absorbent article (the rear waistline member 20a) in the continuum 120a of the flap 30 and the rear waistline member along the end in the width direction of the absorbent article.
- step S33 it is preferable to join the flap 30 to the rear waistline member 20a by an embossing roller, thermocompression bonding using ultrasonic waves, or the like. Further, a thermoplastic resin may be applied along the end portions A1 and A2 of the flap 30.
- the absorbent article manufacturing apparatus includes an engaging member arrangement mechanism 310, a cut line forming mechanism 320, a joining mechanism 330, and a breaking mechanism 200.
- the breaking mechanism 200 is the same as that of the above-described 1-1 embodiment. Therefore, the description of the breaking mechanism 200 is omitted.
- FIG. 8 is a perspective view showing the engaging member arrangement mechanism 310 according to the first to second embodiments of the present invention.
- the engagement member arrangement mechanism 310 has a region 30 ⁇ / b> A constituting one flap 30 in the continuous body 130 of long flaps that are continuously conveyed on the flap line (step S ⁇ b> 21 described above).
- Engagement members 40a and 40b that can engage with a predetermined region are disposed on both sides of the center line C1 along the MD direction of the flap line or the CD direction of the flap line.
- the engaging member arrangement mechanism 310 includes an upper blade roll 313 that rotates about the shaft core 312 and a lower blade roll 315 that rotates about the shaft core 314.
- the upper blade roll 313 is provided with a plurality of blades 313 ⁇ / b> A arranged on the outer periphery of the upper blade roll 313 at predetermined intervals and along the shaft core 312.
- the lower blade roll 315 includes a suction hole 315A for sucking the engagement members 40a and 40b formed by cutting the engagement member continuous body 140, and the engagement member continuous body 140 between the blade 313A. And a receiving blade (not shown) for cutting.
- a first zone Z1 that closely contacts the continuous member 140 with a predetermined contact force, and an engaging member formed by cutting the continuous member 140 of the engaging member.
- a second zone Z2 is provided in which 40a and 40b are brought into close contact with each other with a stronger contact force than the first zone Z1.
- the peripheral surface of the lower blade roll 315 is slipped by the suction hole 315A formed in the first zone Z1 while slipping the peripheral surface of the lower blade roll 315. Adsorb to the surface.
- the engaging member 40a, 40b is formed by cutting the continuous member 140 of the engaging member between the blade 313A and the receiving blade.
- the peripheral surfaces of the lower blade roll 315 are not slipped by the suction holes 315A formed in the second zone Z2 without slipping the peripheral surface of the lower blade roll 315. Adhere to the surface. Then, the engaging members 40 a and 40 b approach the flap continuum 130 by the rotation of the lower blade roll 315, and are stuck on the flap continuum 130.
- FIG. 9 is a perspective view showing a tear line forming mechanism 320 according to the first to second embodiments of the present invention.
- the open type diaper manufacturing method described in the background art described above has the following problems. That is, in the open type diaper manufacturing method described above, a flap continuum (continuous belt portion) is disposed along one end of the diaper body continuum to form a joining region in the CD direction. For this reason, when the user of the manufactured diaper expand
- the present invention has been made in view of the above-described problems, and allows a user to easily perform continuous conveyance of a continuous flap (continuous belt portion) on a flap line without using advanced control. It is an object of the present invention to provide an absorbent article manufacturing method and an absorbent article manufacturing apparatus capable of forming a cuttable wire that can be cut in a straight line.
- this invention can strengthen the joining strength in the joining area
- the center line is formed on a main body line in which a flap forming step of forming a flap by cutting the body, and a continuous body of the front waistline member and a continuous body of the rear waistline member are conveyed. So as to be perpendicular to the conveying direction of the main body line, the in front waistline member or on a continuum of the rear waistline member, and summarized in that and a flap placement step of placing the flap.
- FIG. 11 is a perspective view showing the overall structure of the absorbent article according to Embodiment 2-1.
- FIG. 12 is a view showing a state where the flap 1030 is closed in the absorbent article according to the 2-1 embodiment.
- FIG. 13 is a view showing a state where the flap 1030 is open in the absorbent article according to the 2-1 embodiment.
- the absorbent article is an open type diaper manufactured by a method for manufacturing an absorbent article described later.
- the absorbent article includes a front waistline member 1020b, a back waistline member 1020a, a crotch member 1010 (absorber) that connects the front waistline member 1020b and the back waistline member 1020a, and a back waistline. And a flap 1030 provided on the member 1020a.
- FIG. 14 is a diagram for explaining a method for manufacturing an absorbent article according to Embodiment 2-1.
- the manufacturing method of the absorbent article includes a process performed on the absorber line, a process performed on the flap line, and a process performed on the main body line.
- step S1011 the pulp sheet is pulverized by a pulverizer to generate pulverized pulp, and the superabsorbent polymer (SAP) is mixed when the pulverized pulp passes through the pulp supply duct. Thereafter, the absorbent core 1 (absorber) is formed by laminating a mixture of the pulverized pulp and the superabsorbent polymer supplied from the pulp supply duct into a predetermined shape using a lamination drum.
- SAP superabsorbent polymer
- step S1012 the absorbent core 1001 is placed at predetermined intervals in the MD direction of the absorber line on the sheet-like tissue 1002a that is continuously conveyed in the conveyance direction of the absorbent line (hereinafter, MD direction). Thereafter, a sheet-like tissue 1002b continuously conveyed in the MD direction of the absorber line is stacked on the tissue 1002a on which the plurality of absorber cores 1001 are placed along the MD direction of the absorber line.
- step S1013 the surface sheet 1012b (liquid permeable) continuously conveyed in the MD direction of the absorbent body line is laminated and adhered on the sheet-like tissue 1002b, and the absorbent body line is placed under the sheet-like tissue 1002a.
- the back sheet 1012a (liquid imperviousness) continuously conveyed in the MD direction is stacked and bonded.
- step S1014 the leak-proof wall 1003 formed by another member is attached to both side ends of the absorbent body main body 1001 along the MD direction of the absorbent body line.
- step S1015 the crotch member (absorber body) continuous body 1110 continuously transported in the MD direction of the absorber line is transported by the rotation of the rotating drum, and the cutter roll disposed opposite to the outer peripheral surface of the rotating drum. , And cut along a direction (hereinafter, CD direction) intersecting the MD direction at predetermined intervals.
- CD direction a direction intersecting the MD direction at predetermined intervals.
- step S1016 between the front waistline member continuum 1120b and the rear waistline member continuum 1120a so that the center line C on the absorber line is perpendicular to the MD direction of the main body line,
- the formed crotch member 1010 (absorber body) is disposed. That is, after the crotch member 1010 is rotated by 90 ° and turned upside down, the crotch member 1010 is bonded by a thermoplastic resin between the front waistline member continuum 1120b and the back waistline member continuum 1120a.
- the engaging members 1040a and 1040b are arranged at predetermined length intervals on both sides of the vicinity of the center line C along the MD direction of the flap line.
- the side edges 1050a and 1050b of the flap continuum 1130 may be folded back a plurality of times on the flap line. Further, in order to prevent a situation in which the flap continuum 1130 is turned up during the conveyance of the flap continuum 1130, the side edges 1050a and 1050b of the flap 1030 are folded back and overlapped with the flaps 1030. Temporary fixing may be performed by embossing or the like.
- step S1022B a cutable line (perforation) 1050 that can bisect the flap continuum 1130 along the center line C is formed in the flap continuum 1130 by the cut line forming mechanism 1230 described later.
- the flap 1030 is formed by cutting the flap continuum 1130 at predetermined intervals along the CD direction on the flap line by a continuum cutting roll 1241 of the cutting rotation mechanism 1240 described later.
- a notch (not shown) having a predetermined shape (for example, a curved shape along the footstep) is formed in a part of the vicinity of the center line C described above. Also good.
- step 1024 the flap 1030 formed in step S1023 is rotated by 90 ° on the flap line and turned upside down by a rotating drum 1242 of the cutting and rotating mechanism 1240 described later, and then on a continuous body 1120b of a rear waistline member described later. Adhere with thermoplastic resin.
- a continuous body of a pair of elongated waistline members (a front waistline member continuum 1120b and a back waistline member continuum 1120a) is generated from the nonwoven fabric and conveyed in the MD direction of the main body line.
- the front waistline member continuum 1120b and the rear waistline member continuum 1120a may have elasticity.
- step S1032 the continuous state 1120b of the long front waistline member continuously conveyed on the main body line and the continuous body 1120a of the long rear waistline member are separated from each other in the MD direction of the main body line.
- the crotch member 1010 formed in step S1015 is disposed on the absorber line. That is, after the crotch member 1010 is rotated 90 ° and turned upside down on the main body line, the crotch member is formed between the front waistline member continuum 1120b and the long rear waistline member continuum 1120a by a thermoplastic resin. Adhere 1010.
- step S1033 the flap 1030 formed in step S1023 described above is disposed on the continuum 1120a of the rear waistline member so that the center line C is orthogonal to the MD direction of the main body line on the main body line. That is, the flap 1030 formed in step S1023 on the flap line is rotated by 90 ° and turned upside down, and then the flap 1030 is bonded to the continuum 1120a of the rear waistline member by the thermoplastic resin.
- each of the flaps 1030 corresponds to each of the regions 1020A constituting one absorbent article (the rear waistline member 1020a) in the continuous body 1120a of the rear waistline member on the main body line.
- the flap 1030 and the continuous body 1120a of the rear waistline member are joined.
- step S1033 it is preferable that the flap 1030 is bonded onto the rear waistline member continuum 1120a by an embossing roller, thermocompression bonding using ultrasonic waves, or the like.
- a thermoplastic resin may be applied to the entire back side corresponding to the folded portions 1051a and 1051b of the flap 1030, or thermoplastic only to a part of the back side corresponding to the folded portions 1051a and 1051b of the flap 1030.
- a resin may be applied.
- thermoplastic resin when both side edge portions 1050a and 1050b of the flap continuum 1130 are folded a plurality of times on the flap line, at least a part of the surface in contact with the continuum 1120a of the rear waistline member, A thermoplastic resin shall be applied.
- the width L1 of the flap 1030 in the direction intersecting the center line C is shorter than a predetermined length interval (pitch) L2 that is a cutting interval between the front waistline member continuum 1120b and the rear waistline member continuum 1120a.
- a step of matching the continuum 1120b of the front waistline member and the continuum 1120a of the rear waistline member that is, a step of folding the crotch member 1010 along the center line C may be included.
- the front waistline member continuum 1120b and the rear waistline member continuum 1120a are cut in step S1034 described above.
- the manufacturing apparatus for absorbent articles includes an engagement member arrangement mechanism 1210, an edge folding mechanism 1220, a cut line forming mechanism 1230, and a cutting rotation mechanism 1240 (cutting arrangement mechanism).
- FIG. 5 is a perspective view showing an engagement member arrangement mechanism 1210 according to the 2-1 embodiment.
- the engagement member arrangement mechanism 1210 has engagement members 1040a at predetermined intervals on both sides of the vicinity of the center line C along the MD direction of the flap line as described in step S1021A. 1040b.
- the engagement member arrangement mechanism 1210 is roughly constituted by an upper blade roll 1211, a lower blade roll 1212, and a transfer roll 1213.
- the upper blade roll 1211, the lower blade roll 1212, and the transfer roll 1213 rotate around a support shaft (not shown).
- the lower blade roll 1212 has two receiving blades 1212A for cutting the engaging member continuous body 1140 by contacting the blade 1211A.
- the lower blade roll 1212 is formed with a plurality of suction holes 1212B for sucking the continuous member 1140 of the engaging members.
- the lower blade roll 1212 rotates in the reverse direction with respect to the upper blade roll 1211. As described above, the peripheral speed (V 2 ) of the lower blade roll 1212 is substantially the same as the peripheral speed (V 1 ) of the upper blade roll 1211.
- FIG. 16 is a perspective view showing an edge folding mechanism 1220 according to the 2-1 embodiment.
- the edge folding mechanism 1220 folds both side edges 1050a and 1050b located on both sides of the flap continuum 1130 to the center line C side as described in step S1022A described above.
- the large-diameter roll 1221 is in contact with the central region 1130C of the flap continuum 1130 (on the side of the center line C relative to the side edge portions 1050a and 1050b), and raises both side edge portions 1050a and 1050b together with the guide roll 1224 described later.
- the transport roll 1222 transports the flap continuum 1130 in a substantially horizontal state. That is, the flap continuum 1130 is transported in a substantially horizontal state by driving the transport roll 1222.
- the guide roll 1224 guides the side edge portions 1050a and 1050b in order to fold back the side edge portions 1050a and 1050b to the center line C side.
- the guide roll 1224 includes a guide roll 1224A, a guide roll 1224B, a guide roll 1224C, a guide roll 1224D, and a guide roll 1224E.
- the folded portion including both side edge portions 1050a and 1050b is prevented from being turned up during the conveyance of the flap continuum 1130.
- temporary fixing may be performed by embossing or the like.
- FIG. 17 is a perspective view showing a cutoff line forming mechanism 1230 according to the 2-1 embodiment.
- the joining region between the rear waistline member and the continuous body 1120a is formed in the folded portions 1051a and 1051b (the back side of the flap 1030) of the flap 1030. Is done.
- both side edge part 1050a, 1050b of the flap 1030 when temporarily fixing by embossing etc. with respect to both side edge part 1050a, 1050b of the flap 1030, it can prevent turning over at the time of conveyance of the continuous body 1130 of a flap, and the flap 1030 is on a main body line. It is possible to prevent the flap 1030 from being turned over during conveyance on the main body line after being joined onto the continuous body 1120a of the rear waistline member.
- each member for example, the crotch member 1010
- each member can be continuously transported on the main body line, thereby realizing a stable transport state.
- the absorbent article can be manufactured without performing a complicated process.
- the width L1 of the flap 1030 in the direction intersecting the center line C is shorter than the predetermined long distance L2, and therefore, due to a deviation in cutting in the main body line. Cutting of both edge portions 1050a and flange 1050b of the flap 1030 can be prevented.
- the front waistline member continuum 1120b and the rear waistline member continuum 1120a are continuously conveyed, the front waistline member continuum 1120b. And the end of the rear waistline member continuum 1120a can be easily folded and overlapped. For this reason, the continuous body 1120b of the front waistline member and the continuous body 1120a of the rear waistline member which are overlapped can be simultaneously cut, and an open-type diaper and a pants-type diaper can be manufactured by the same cutting process. Therefore, an open-type diaper and a pants-type diaper can be manufactured without changing the cutting process and the cutting cutter itself.
- Embodiment 2-1 According to the method for manufacturing an absorbent article according to Embodiment 2-1, it is possible to manufacture an absorbent article having a pair of side flaps protruding from the absorbent body 1001 without being restricted by the product form. it can.
- FIG. 19 is a perspective view showing a cutting arrangement mechanism 1250 according to the 2-2 embodiment. Note that the same portions as those of the cutting and arranging mechanism 1250 according to the above-described 2-1 embodiment are denoted by the same reference numerals, and different portions are mainly described.
- the flap 1030 is arranged on the rear waistline member continuum 1120a so that the center line C is orthogonal to the MD direction of the main body line on the main body line.
- the flap 1030 is bonded onto the rear waistline member continuum 1120a.
- the flap 1030 is disposed on the continuum 1120a of the rear waistline member without rotating the flap 1030 and turning it upside down.
- the absorbent article manufacturing apparatus has a cutting arrangement mechanism 1250 instead of the cutting rotation mechanism 1240 described in the 2-1 embodiment.
- the apparatuses other than the cutting rotation mechanism 1240 that is, the engaging member arrangement mechanism 1210, the edge folding mechanism 1220, and the cut line forming mechanism 1230) are the same. It is.
- the cutting arrangement mechanism 1250 forms the flap 1030 by cutting the flap continuum 1130 at predetermined intervals. Moreover, the cutting
- the cutting arrangement mechanism 1250 includes an upper blade roll 1253 that rotates about the axis 1252 and a lower blade roll 1255 that rotates about the axis 1254.
- the upper blade roll 1253 is provided with a plurality of blades 1253A disposed on the outer periphery of the upper blade roll 1253 at predetermined intervals and substantially parallel to the shaft core 1252.
- the lower blade roll 1255 includes a suction hole 1255A for sucking the flap 1030 formed by cutting the flap continuum 1130 and a receiving blade (not shown) for cutting the flap continuum 1130 between the blade 1253A. ) And are provided.
- the flap continuum 1130 passes through the first zone Z1
- the flap continuum 1130 slips on the peripheral surface of the lower blade roll 1255 while slipping on the peripheral surface of the lower blade roll 1255 while slipping the peripheral surface of the lower blade roll 1255.
- the flap 1030 is formed by cutting the flap continuum 1130 between the blade 1253A and the receiving blade.
- the embodiment of the present invention can be modified as follows. Specifically, an example in which a flap 1030 in which engagement members 1040a and 1040b that can be engaged with a predetermined region of the front waistline member 1020b are disposed is disposed on a continuous body 1120a of the rear waistline member.
- the present invention is not limited to such an example, and the front waistline member 1020b includes a flap 1030 in which engaging members 1040a and 1040b that can be engaged with predetermined regions of the rear waistline member 1020a are arranged. It is applicable also to the example comprised so that it may arrange
- the order described in the method for manufacturing an absorbent article is not particularly limited, as long as the absorbent article can be manufactured, and can be appropriately selected according to the purpose.
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Abstract
Description
(第1-1の実施形態)
図1乃至図3を参照して、本発明の第1-1の実施形態に係る吸収性物品の製造方法について説明する。
図4を参照して、本発明の第1-1の実施形態の変更例1に係る吸収性物品の製造方法について説明する。以下、本発明の第1-1の実施形態に係る吸収性物品の製造方法との相違点に着目して、本発明の変更例1に係る吸収性物品の製造方法について説明する。
図5を参照して、本発明の第1-1の実施形態の変更例2に係る吸収性物品の製造方法について説明する。以下、本発明の第1-1の実施形態に係る吸収性物品の製造方法との相違点に着目して、本発明の変更例2に係る吸収性物品の製造方法について説明する。
図6を参照して、本発明の第1-1の実施形態の変更例3に係る吸収性物品の製造方法について説明する。以下、本発明の第1-1の実施形態に係る吸収性物品の製造方法との相違点に着目して、本発明の変更例3に係る吸収性物品の製造方法について説明する。
図7を参照して、本発明の第1-1の実施形態の変更例4に係る吸収性物品の製造方法について説明する。以下、本発明の第1-1の実施形態に係る吸収性物品の製造方法との相違点に着目して、本発明の変更例4に係る吸収性物品の製造方法について説明する。
次に、図8乃至図10を参照して、本発明の第1-2の実施形態に係る吸収性物品の製造装置について説明する。吸収性物品の製造装置は、係合部材配置機構310と、切取線形成機構320と、接合機構330と、破断機構200とを備える。なお、破断機構200は、上述した第1-1の実施形態と同様である。従って、破断機構200の説明については省略する。
例えば、吸収性物品の製造方法で説明した順序については、特に制限はなく、吸収性物品を製造できればよく、目的に応じて適宜選択できることは勿論である。
(背景技術)
上述した背景技術で説明したオープンタイプのオムツの製造方法には、発明の開示で説明した問題点に加えて、次の問題もあった。すなわち、上述したオープンタイプのオムツの製造方法では、オムツ本体の連続体の一端部に沿ってフラップの連続体(連続ベルト部)を配設してCD方向に接合領域を形成する。このため、製造されたオムツの使用者がフラップを展開する際に、かかる接合領域に対して剥離方向に力が掛かり、かかるフラップがオムツ本体から剥がれ易いという問題点があった。
(第2-1の実施形態)
まず、第2-1の実施形態に係る吸収性物品の構成について、図面を参照しながら説明する。図11は、第2-1の実施形態に係る吸収性物品全体構造を示す斜視図である。図12は、第2-1の実施形態に係る吸収性物品において、フラップ1030が閉じている状態を示す図である。図13は、第2-1の実施形態に係る吸収性物品において、フラップ1030が開いている状態を示す図である。第2-1の実施形態では、吸収性物品は、後述する吸収性物品の製造方法によって製造されたオープンタイプのオムツである。
以下において、第2-2の実施形態に係る切断配置機構1250について、図面を参照しながら説明する。図19は、第2-2の実施形態に係る切断配置機構1250を示す斜視図である。なお、上述した第2-1の実施形態に係る切断配置機構1250と同一部分には同一の符号を付して、相違する部分を主として説明する。
例えば、本発明の実施形態は、次のように変更することができる。具体的には、前胴回り部材1020bの所定領域に係合可能な係合部材1040a、1040bが配置されているフラップ1030を後胴回り部材の連続体1120a上に配置するように構成されている例について説明しているが、本発明は、かかる例に限定されることはなく、後胴回り部材1020aの所定領域に係合可能な係合部材1040a、1040bが配置されているフラップ1030を前胴回り部材1020bの連続体1120a上に配置するように構成されている例についても適用可能である。
Claims (17)
- 前胴回り部材と、後胴回り部材と、該前胴回り部材及及び該後胴回り部材を連結する股下部材とを具備する吸収性物品の製造方法であって、
フラップライン上で連続搬送される長尺状のフラップの連続体における1つのフラップを構成する領域において、該フラップラインの搬送方向或いは該フラップラインの搬送方向に交差する方向に沿う中心線の両側に、所定領域に係合可能な係合部材を配置する配置工程と、
前記中心線に沿って切取り可能線を形成する切取り可能線形成工程と、
本体ライン上で、前記中心線が該本体ラインの搬送方向に直交するように、前記前胴回り部材或いは前記後胴回り部材の連続体と、前記フラップの連続体或いは前記フラップラインの搬送方向に交差する方向に沿って該フラップの連続体を切断することによって形成されたフラップとを接合する接合工程と、
前記本体ライン上で、前記切取り可能線を破断する破断工程とを有することを特徴とする吸収性物品の製造方法。 - 前記接合工程において、前記1つのフラップを構成する領域の各々と、前記前胴回り部材或いは前記後胴回り部材の連続体における1つの前記吸収性物品を構成する領域の各々とが対応するように、前記フラップの連続体或いは前記フラップと、該前胴回り部材或いは該後胴回り部材の連続体とを接合することを特徴とする請求項1に記載の吸収性物品の製造方法。
- 前記フラップライン上で、該フラップラインの搬送方向に交差する方向に沿って前記フラップの連続体を切断することによって、フラップを形成するフラップ形成工程を有することを特徴とする請求項1に記載の吸収性物品の製造方法。
- 前記破断工程において、前記本体ライン上における前記接合工程よりも前の工程におけるテンションよりも、該本体ライン上における該接合工程よりも後の工程におけるテンションを強くすることによって、前記切取り可能線を破断することを特徴とする請求項1に記載の吸収性物品の製造方法。
- 前記破断工程において、突部を有するローラを用いて前記切取り可能線を押圧することによって、該切取り可能線を破断することを特徴とする請求項1に記載の吸収性物品の製造方法。
- 前記破断工程において、ハンマープレス処理によって、前記切取り可能線を破断することを特徴とする請求項1に記載の吸収性物品の製造方法。
- 前記破断工程において、前記切取り可能線を含む領域に対して熱処理を施すことによって、該領域をフィルム化することを特徴とする請求項4乃至6のいずれか一項に記載の吸収性物品の製造方法。
- 前記本体ライン上で連続搬送される長尺状の前記前胴回り部材の連続体と長尺状の前記後胴回り部材の連続体との間に、該本体ラインの搬送方向に互いに離間した状態で前記股下部材を配置する股下部材配置工程を有することを特徴とする請求項1に記載の吸収性物品の製造方法。
- 前記接合工程において、前記フラップの連続体又は前記フラップを、前記股下部材の端部を覆うように配置する請求項1に記載の吸収性物品の製造方法。
- 前胴回り部材と、後胴回り部材と、該前胴回り部材及及び該後胴回り部材を連結する股下部材とを具備する吸収性物品の製造装置であって、
フラップライン上で連続搬送される長尺状のフラップの連続体における1つのフラップを構成する領域において、該フラップラインの搬送方向或いは該フラップラインの搬送方向に交差する方向に沿う中心線の両側に、所定領域に係合可能な係合部材を配置する係合部材配置機構と、
前記中心線に沿って切取り可能線を形成する切取線形成機構と、
前記中心線が本体ラインの搬送方向に直交するように、前記前胴回り部材或いは前記後胴回り部材の連続体と、前記フラップの連続体或いは前記フラップラインの搬送方向に交差する方向に沿って該フラップの連続体を切断することによって形成されたフラップとを接合する接合機構と、
前記切取り可能線を破断する破断機構と
を備えることを特徴とする吸収性物品の製造装置。 - 前胴回り部材と、後胴回り部材と、該前胴回り部材及び該後胴回り部材を連結する股下部材とを具備する吸収性物品の製造方法であって、
フラップライン上で連続搬送される長尺状のフラップの連続体において、該フラップラインの搬送方向に沿う中心線の近傍領域の両側に、所定領域に係合可能な係合部材を配置する係合部材配置工程と、
前記中心線に沿って前記フラップの連続体を二分可能な切取り可能線を形成する切取り可能線形成工程と、
前記フラップライン上で、該フラップラインの搬送方向に直交する方向に沿って前記フラップの連続体を切断することによって、フラップを形成するフラップ形成工程と、
本体ライン上で、前記中心線が該本体ラインの搬送方向に直交するように、前記前胴回り部材又は前記後胴回り部材の連続体上に、前記フラップを配置するフラップ配置工程とを有することを特徴とする吸収性物品の製造方法。 - 前記本体ライン上で、所定長間隔で、該本体ラインの搬送方向に直交する方向に沿って前記前胴回り部材の連続体及び前記後胴回り部材の連続体を切断する胴回り部材切断工程を有し、
前記フラップにおける前記中心線に直交する方向の幅は、前記所定長間隔よりも短いことを特徴とする請求項11に記載の吸収性物品の製造方法。 - 前記近傍領域の一部において、所定形状の切り欠き部を形成する工程を有することを特徴とする請求項11に記載の吸収性物品の製造方法。
- 前記フラップライン上で、前記フラップの連続体の両側縁部を、前記中心線側に折り返す折り返し工程を有し、
前記フラップ配置工程において、前記折り返し部分と前記前胴回り部材又は前記後胴回り部材の連続体とを接着することを特徴とする請求項11に記載の吸収性物品の製造方法。 - 前記本体ライン上で連続搬送される長尺状の前記前胴回り部材の連続体と長尺状の前記後胴回り部材の連続体との間に、該本体ラインの搬送方向に互いに離間した状態で前記股下部材を配置する股下部材配置工程を有することを特徴とする請求項11に記載の吸収性物品の製造方法。
- 前記胴回り部材切断工程において、前記吸収性物品の幅方向における前記前胴回り部材の長さと、前記吸収性物品の幅方向における前記後胴回り部材の長さとが等しくなるように、前記前胴回り部材の連続体及び前記後胴回り部材の連続体を切断することを特徴とする請求項12に記載の吸収性物品の製造方法。
- 前胴回り部材と、後胴回り部材と、該前胴回り部材及び該後胴回り部材を連結する股下部材とを具備する吸収性物品の製造装置であって、
前記前胴回り部材又は後胴回り部材のいずれかに設けられるフラップが搬送されるフラップライン上で連続搬送される長尺状のフラップの連続体において、前記フラップラインの搬送方向に沿う中心線の近傍領域の両側に、所定領域に係合可能な係合部材を配置する係合部材配置機構と、
前記中心線に沿って前記フラップの連続体を前記フラップラインの搬送方向に沿って二分可能な切取り可能線を形成する切取線形成機構と、
前記フラップラインの搬送方向に直交する方向に沿って前記フラップの連続体を切断するとともに、前記中心線が本体ラインの搬送方向に直交するように、前記前胴回り部材又は前記後胴回り部材の連続体上に前記フラップを配置する切断配置機構と
を備えることを特徴とする吸収性物品の製造装置。
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