WO2011001542A1 - 使い捨ての体液処理用パッド複合体の製造方法および製造装置 - Google Patents
使い捨ての体液処理用パッド複合体の製造方法および製造装置 Download PDFInfo
- Publication number
- WO2011001542A1 WO2011001542A1 PCT/JP2009/063020 JP2009063020W WO2011001542A1 WO 2011001542 A1 WO2011001542 A1 WO 2011001542A1 JP 2009063020 W JP2009063020 W JP 2009063020W WO 2011001542 A1 WO2011001542 A1 WO 2011001542A1
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- WIPO (PCT)
- Prior art keywords
- web
- body fluid
- pressing
- composite
- pad
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 76
- 210000001124 body fluid Anatomy 0.000 title claims abstract description 62
- 239000010839 body fluid Substances 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000003825 pressing Methods 0.000 claims description 118
- 238000000034 method Methods 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 abstract description 4
- 239000004831 Hot glue Substances 0.000 description 13
- 238000003475 lamination Methods 0.000 description 12
- 229920002994 synthetic fiber Polymers 0.000 description 9
- 239000012209 synthetic fiber Substances 0.000 description 9
- 229920001169 thermoplastic Polymers 0.000 description 9
- 239000004416 thermosoftening plastic Substances 0.000 description 9
- 239000000835 fiber Substances 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 239000002985 plastic film Substances 0.000 description 5
- 229920006255 plastic film Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/474—Sanitary towels, incontinence pads or napkins adjustable
-
- 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
-
- 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
- Y10T156/1023—Surface deformation only [e.g., embossing]
-
- 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
- Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
- Y10T156/1317—Means feeding plural workpieces to be joined
- Y10T156/1343—Cutting indefinite length web after assembly with discrete article
Definitions
- the present invention relates to a manufacturing method and a manufacturing apparatus for a disposable body fluid treatment pad complex used as a panty liner, sanitary napkin, or the like.
- a composite pad in which a plurality of body fluid treatment pads such as a panty liner are detachably stacked is conventionally known.
- a sanitary laminated napkin described in Japanese Patent Laid-Open No. 10-286280 is obtained by releasably joining the peripheral portions of a sanitary napkin that is overlapped, and each end of each sanitary napkin. Are formed with tabs so that their positions are different from each other. By holding the tab, the soiled sanitary napkin can be peeled off from the sanitary laminated napkin.
- Patent Document 2 Japanese Patent Application Laid-Open No. 2006-305243
- Patent Document 2 the absorbent article described in Japanese Patent Application Laid-Open No. 2006-305243
- the single unit positioned above is formed to be particularly thin by compressing only its end, and a gap is formed between the end and the single unit positioned below the end.
- the upper single unit becomes dirty, the upper single unit can be peeled off the lower single unit by gripping its end.
- each sanitary napkin to be manufactured for the laminated sanitary napkin Napkins have different contour shapes.
- An apparatus for manufacturing a laminated sanitary napkin from such a sanitary napkin must have a sanitary napkin production line corresponding to each contour shape, and thus the scale of the apparatus tends to be large.
- the tabs for gripping may partially overlap, it becomes difficult to grip.
- Patent Document 2 The absorbent article described in Patent Document 2 is a superposition of two single bodies having the same contour shape, and the end of only one single body is made thin. One of the superposed single units can be easily peeled off from the other single unit by gripping the thinly made end.
- this document discloses a method and apparatus for efficiently forming such end portions in a single body, and a method and apparatus for efficiently manufacturing a composite of absorbent articles in which single bodies are superposed.
- an object of the present invention is to provide an improved manufacturing method and manufacturing apparatus for a disposable body fluid treatment pad composite that can be used as a panty liner, sanitary napkin, or the like.
- This invention for solving the above-described problems includes a first invention relating to a method for producing a disposable body fluid treatment pad composite and a second invention relating to a production apparatus for the body fluid treatment pad composite.
- the first invention of the present invention has a longitudinal direction, a lateral direction, and a thickness direction orthogonal to each other, and the body fluid absorbing layer and the body fluid impermeable layer are separated in the thickness direction.
- a body fluid-absorbing first pad that overlaps with each other and is formed such that at least one of the longitudinal ends is thinner than an intermediate portion located between the ends.
- a bodily fluid-absorbing second pad releasably bonded to the bodily fluid impermeable layer of the first pad.
- the features of the first invention are as follows. That is, the web in which the continuous body of the bodily fluid absorbing layer and the bodily fluid impermeable layer is bonded so as not to peel is passed through a pair of squeezing rolls rotating in the machine direction while running in the machine direction. The part which should become at least one edge part of the said both ends among the said webs is pressurized with the said pressing roll, thickness is made thin, and the site
- a body fluid absorbing web is stacked on the body fluid impermeable layer and is peeled and bonded to the body fluid while traveling either the processed web or the plurality of first pads cut out from the processed web in the machine direction.
- Make a web A fluid-impermeable web is bonded to the body fluid-absorbing web of the first composite web in a non-peelable manner, and the second pad can be peeled from the body fluid-impermeable web to the wear of the pad composite wearer.
- a second adhesive web is applied by applying a pressure-sensitive adhesive for fixing to the substrate, and the pressure-sensitive adhesive is covered with a separator web that protects the pressure-sensitive adhesive.
- the pad composite is obtained from the second composite web.
- the processed web has a width of the web in which a row of the thinned portions that are arranged in the machine direction coincides with a direction intersecting the machine direction. A plurality of the first pads can be cut out from the processed web in the width direction.
- a method for releasably bonding the bodily fluid-absorbing web to the bodily fluid impermeable layer includes the overlapping of the processed web and the first pad and the bodily fluid-absorbing web.
- a series of squeezing marks is formed on either the processed web or the first pad by local pressurization, and either the processed web or the first pad and the body fluid-absorbing web are formed in the squeezing mark.
- mechanically entangled with each other a part of a series of the pressing marks is formed so as to overlap with a portion where the thickness is reduced.
- the thinned portion has an acute angle with a pair of side edges extending in parallel with each other in the longitudinal direction on the surface of the body fluid absorbing layer and each of the side edges. And an end edge extending in the lateral direction.
- the compression mark is formed by reducing the thickness formed by intersecting each of the side edges and the end edge in a portion where the thickness is reduced. It forms so that it may overlap with the convex part in the done part.
- the second invention according to the present invention is directed to a manufacturing apparatus for a disposable body fluid treatment pad complex for carrying out the manufacturing method according to the first invention.
- the features of the second invention are as follows. That is, on the peripheral surface of at least one of the pair of squeezing rolls, the continuum of the body fluid absorbing layer and the body fluid impermeable layer is squeezed so as not to be peeled to the web. A raised stamp for forming a portion having a reduced thickness is provided. The circumferential dimension of the one roll at the top of the pressing die is opposed to one of the first pads that are sequentially cut in the machine direction and the first pad that is cut next to the first pad. The length is adjusted so that each of the thinned portions can be formed as a series.
- the pressing die is intermittently formed in the circumferential direction and the axial direction of the one roll.
- the pressing die is formed symmetrically with respect to a center line that bisects the axial dimension of the one roll and a center line that bisects the circumferential dimension.
- a pair of side edges extending in parallel to each other in the circumferential direction and end edges extending in parallel to each other in the axial direction by drawing a line that intersects each of the pair of side edges at an acute angle. have.
- the bodily fluid-absorbing web overlaps the bodily fluid impermeable layer of the processed web, and both of them are detachably joined.
- the device is a pair of heatable rolls provided on the downstream side of the squeeze roll for forming the thinned portion of the processed web. It is the formed 2nd pressing roll.
- the second squeezing roll is symmetrical in the lateral direction with respect to the body fluid absorbing layer in the first composite web and extends in the longitudinal direction to form two strips.
- a series of squeezing marks forming a row is formed, and the humor impermeable layer and the humor absorbing web are mechanically entangled in the squeezing marks so as to be peelable, and upstream of the squeezing roll in the machine direction.
- a first tension controller for either the web traveling in the machine direction or the processed web is provided on either the side or the upstream side of the second pressing roll, and the upstream side of the second pressing roll Is also provided with a second tension controller for the body fluid-absorbing web traveling in the machine direction.
- the manufacturing method and the manufacturing apparatus of the disposable body fluid treatment pad composite in the step of continuously manufacturing one of the pads forming the pad composite, in the longitudinal direction of the pad It becomes easy to make a portion with a reduced thickness at the end.
- FIG. 1 The perspective view of a panty liner package.
- wire cut surface of FIG. The figure which shows the manufacturing process of a panty liner composite.
- wire cut surface of FIG. The enlarged view of the part VII of FIG.
- Pad complex (Pantila liner complex) 11 First pad (upper liner) 11a end 11b end 12 second pad (lower liner) DESCRIPTION OF SYMBOLS 20 Press mark 21 Press mark 22 Press mark 23 Thickened part 24 Thinned part 31 Body fluid absorption layer 32 Body fluid absorption layer 33 Body fluid impermeable layer 41 Body fluid absorption layer 42 Body fluid absorption layer 43 Body fluid absorption layer 44 Body fluid Impervious layer 61 Stamping die 61a Top part 72a Side edge 73a End edge 74a Convex part 111 Web 113 Processing web (third laminated web) 115 Body Fluid Absorbing Web 116 First Composite Web 117 Second Composite Web 121 Continuous (Web) 122 Continuum (Web) 134 1st tension controller 135 pressing roll (first pressing roll) 301 2nd tension controller 302 2nd pressing roll
- panty liner composite as an example of a disposable body fluid treatment pad composite that can be manufactured according to the present invention.
- FIG. 1 is a perspective view of a panty liner package 1.
- the packaging body 1 is obtained by packaging the panty liner composite 10 according to the present invention with a plastic film 2, and the folded films 2 are detachably joined at both side edges 3 of the packaging body 1. Yes.
- Package 1 pulls in the direction indicated the end 4 of the film 2 by the arrow Z a, then pulled in a direction indicated another end portion 5 by the arrow Z b, taken out pantiliners complex 10 unpacked be able to.
- FIG. 2 and 3 are partially broken perspective views of the panty liner composite 10 shown by unwrapping the package 1 shown in FIG. 1 and flatly extending the film 2 and the panty liner composite 10, and FIG. It is a figure which shows an III line cut surface.
- the panty liner composite 10 includes two individual liners 11 including an upper liner 11 that is the first pad of the pad composite according to the present invention and a lower liner 12 that is the second pad of the pad composite according to the present invention. , 12 are stacked one above the other and joined in a peelable manner.
- the illustrated upper liner 11 and lower liner 12 have the same shape and the same size, and have a vertical direction P, a horizontal direction Q, and a thickness direction R orthogonal to each other, and bisect the dimensions of the horizontal direction Q.
- the center line M and the center line N that bisects the dimension in the longitudinal direction P are formed symmetrically, and the line III-III coincides with the center line M.
- Each of the upper liner 11 and the lower liner 12 is also formed so as to be elongated in the longitudinal direction P, and includes both side edge portions 11a and 11b and both side edge portions 12a and 12b extending in parallel to each other in the longitudinal direction P.
- both end edges 11c and 11d and both end edges 12c and 12d extend in parallel to each other in the lateral direction Q.
- the end edges 11c and 11d are connected to the side edges 11a and 11b, and the end edges 12c and 12d are connected to the side edges 12a and 12b.
- the upper liner 11 and the lower liner 12 are side edges so as to be symmetrical to the first pressing portion 21 in the lateral direction Q and the first pressing portion 21 formed in the side edge portions 11a and 12a.
- the 1st 2nd pressing part 22 currently formed in the parts 11b and 12b, it has joined so that peeling is possible.
- Each of the first squeezing part 21 and the second squeezing part 22 is formed by arranging a plurality of small squeezing parts 20 that are separated from each other so as to form a series in the longitudinal direction P. (See FIG.
- Each of the small pressing parts 20 is a pressing mark formed by locally pressurizing or heating and pressing the overlapping upper liner 11 and lower liner 12 with a pair of upper and lower pressing rolls, as will be described later.
- the material forming the upper liner 11 enters the lower liner 12 and mechanically entangles with the material forming the lower liner 12.
- the upper liner 11 includes a body fluid-permeable first surface sheet 31 formed of a nonwoven fabric containing thermoplastic synthetic fibers or an apertured plastic film, and a body fluid-absorbing first intermediate formed of nonwoven fabric containing thermoplastic synthetic fibers.
- a sheet 32 and a body fluid impermeable first back sheet 33 formed of a plastic film or a nonwoven fabric containing thermoplastic synthetic fibers are laminated, and the overlapping sheets are hot melt adhesives (not shown).
- the first top sheet 31 and the first intermediate sheet 32 form a body fluid absorbing layer, and the first back sheet 33 forms a body fluid impermeable layer.
- the body fluid absorbing layer is for absorbing and holding body fluid, and the thermoplastic synthetic fiber contained in this layer is preferably subjected to a hydrophilic treatment.
- This layer can also contain water-absorbing fibers such as pulp fibers and rayon fibers.
- the body fluid impermeable layer is for preventing body fluid in the body fluid absorbing layer from moving to the lower liner 12.
- the third pressing portion 23 and the fourth pressing portion 24 are formed at the edge portions 11 c and 11 d.
- the third and fourth pressing parts 23 and 24 are longitudinally compressed by the upper liner 11 being compressed at a temperature at which the hot melt adhesive and / or thermoplastic synthetic fiber contained therein is compressed and easily deformed.
- the thickness is thinner than the intermediate part 11e located between the end edge parts 11c and 11d, and it is preferably harder in addition to that (see FIG. 3).
- the lower liner 12 includes a body fluid-permeable second surface sheet 41 formed of a nonwoven fabric containing thermoplastic synthetic fibers or a perforated plastic film, and a body fluid-absorbing second surface sheet formed of nonwoven fabric containing thermoplastic synthetic fibers.
- the third intermediate sheets 42 and 43 and the second back sheet 44 formed of a plastic film or a nonwoven fabric containing thermoplastic synthetic fibers are laminated, and the overlapping sheets are hot melt adhesive (not shown). 2), the second top sheet 41 and the second and third intermediate sheets 42 and 43 form a layer for absorbing and holding bodily fluid, and the second back sheet 44 is made of body fluid.
- a body fluid impervious layer is formed to prevent transition to clothing.
- the thermoplastic synthetic fiber included in the layer for absorbing and holding body fluid is preferably subjected to a hydrophilic treatment.
- This layer can also contain water-absorbing fibers such as pulp fibers.
- the second back sheet 44 of the lower liner 12 has a clothing contact surface 44a that makes the panty liner composite 10 contact the clothing (not shown) of the wearer.
- An adhesive 46 is applied.
- the adhesive 46 is covered and protected by a separator 47, and the separator 47 is bonded to the film 2 through an adhesive 48 so as not to be peeled off.
- the separator 47 When wearing such a panty liner composite 10, the separator 47 is peeled from the lower liner 12 to expose the adhesive 46 in the lower liner 12, and the adhesive 46 is used to wear the panty liner composite 10. Fasten. If the upper liner 11 of the worn panty liner composite 10 is soiled, the third pressing part 23 or the fourth pressing part 24 in the upper liner 11 is gripped, and the upper liner 11 is peeled off from the lower liner 12, A lower liner 12 is used instead of the liner 11. When the upper liner 11 overlaps the lower liner 12, the third and fourth pressing portions 23 and 24 are formed to be particularly thinner than other portions of the upper liner 11, and a gap 26 is formed between the upper liner 11 and the lower liner 12. , 27 (see FIG.
- panty liner composite 10 does not necessarily need to be symmetric with respect to the center line N, the panty liner composite 10 can be asymmetric with respect to the center line N according to the purpose of use. Further, since the panty liner composite 10 does not require that the upper liner 11 and the lower liner 12 have the same shape and size, the lower liner 12 is larger than the upper liner 11. You can also
- FIG. 4 is a diagram illustrating an example of a manufacturing process of the panty liner composite 10. This process is downstream of the first section A for manufacturing the upper liner 11, the second section B for manufacturing the majority of the lower liner 12, and the first section A and the second section B. And a third section C prepared for obtaining the panty liner composite 10.
- the first section A includes the first step 101 to the fourth step 104.
- the first web 121 for obtaining the first face sheet 31 and the first intermediate sheet 32 are obtained.
- the second web 122 is supplied in the machine direction MD from the right side of the figure.
- a hot melt adhesive (not shown) is also applied to one side of the second web 122 using the coater 124.
- the first and second webs 121 and 122 are supplied to a nip roll 132 that rotates so as to travel in the machine direction MD, and both the webs 121 and 122 are applied by a hot melt adhesive applied to the second web 122. Are joined together to form the first laminated web 111.
- a hot melt adhesive (not shown) is applied to the second web 122 of the first laminated web 111 using the coater 133.
- the third web 123 for obtaining the first back sheet 33 is supplied in the machine direction MD, and the first lamination is performed via the hot melt adhesive applied to the first lamination web 111 by the coater 133.
- the second laminated web 112 is obtained by bonding to the web 111.
- the first laminated controller 112 is used to maintain the tension in the machine direction MD of the second laminated web 112 constant, and the second laminated web 112 is moved to the first roll 135a and the second roll 135b. It supplies to the 1st pressing roll 135 formed by. In the 1st pressing roll 135, the part which should become the 3rd, 4th pressing parts 23 and 24 of the upper liner 11 among the 2nd lamination
- the fourth web 124 for obtaining the second topsheet 41 and the fifth for obtaining the second intermediate sheet 42 are provided.
- the web 125 is supplied in the machine direction MD from the right side of the figure.
- a hot melt adhesive (not shown) is also applied to one side of the fifth web 125 using the coater 204.
- the fourth and fifth webs 124 and 125 are supplied to the nip roll 209, the both webs 124 and 125 are joined by the hot melt adhesive applied to the fifth web 125, and the fourth laminated web 114 is formed. obtain.
- a hot melt adhesive (not shown) is applied to one side of the sixth web 126 using the coater 212 while supplying the sixth web 126 for obtaining the third intermediate sheet 43 in the machine direction MD. Apply.
- the fifth laminated web 115 is further obtained by joining the sixth web 126 coated with the hot melt adhesive and the fourth laminated web 114 using the nip roll 213 rotating in the machine direction MD.
- the fifth laminated web 115 is stretched while being tensioned in the machine direction MD by the second tension controller 301. Is overlapped with the third laminated web 113 from the first section A and supplied to the second pressing roll 302 formed by the roll 302a and the roll 302b.
- the roll 302a has a raised portion (not shown) corresponding to the small squeezed portion 20 (see FIGS. 2 and 7) on its peripheral surface, and the surface of the roll 302b facing the raised portion is smoothly formed.
- stacking web 115 which overlap are squeezed in the site
- both the laminated webs 113 and 115 are integrated in a peelable manner.
- a first composite web 116 is obtained.
- the second pressing roll 302 can be used in a heated state.
- a hot melt adhesive (not shown) is further applied to the sixth web 126 in the first composite web 116 using the coater 303.
- the seventh web 127 to be the second back sheet 44 and the eighth web 128 to be the separator 47 in the panty liner composite 10 are supplied in the machine direction MD.
- a hot melt adhesive (not shown) is applied to one side of the eighth web 128 using a coater 306.
- the seventh and eighth webs 127 and 128 are supplied to a pair of nip rolls 318, the seventh and eighth webs 127 and 128 are joined by the adhesive applied to the eighth web 128, and then the adhesive is applied by the coater 303.
- the seventh web 127 is overlaid on the sixth web 126 of the first composite web 116.
- the seventh and eighth webs 127 and 128 and the first composite web 116 are supplied between a pair of nip rolls 319 and joined together to obtain a second composite web 117.
- the upper liner 11, the lower liner 12, and the separator 47 from the second composite web 117 continuously supplied to the cutter 330 formed by a pair of rolls 331 rotating in the machine direction MD. are sequentially cut out.
- each composite 350 is transported in the machine direction MD using a transport roll 321 rotating in the machine direction MD, an endless belt 322, etc. 2 to obtain a package 1 (see FIG. 1).
- a composite 350 is the panty liner composite 10 in FIG.
- FIG. 5 and 6 are explanatory diagrams of the first squeeze roll 135 used in the first section A of the steps illustrated in FIG.
- the 1st pressing roll 135 consists of the 1st roll 135a and the 2nd roll 135b which rotate so that the 2nd lamination
- FIG. 5 is a diagram showing the peripheral surface 60 of the first roll 135a developed in the machine direction MD, and FIG.
- FIG. 6 shows the shape of the top portion 61a in the cross section of the die 61 along the line VI-VI cut in FIG. FIG.
- the second laminated web 112 supplied to the first pressing roll 135 and the outline of the portion 11 S planned as the upper liner 11 in the second laminated web 112 are indicated by virtual lines.
- the portions 11 S form a row in the machine direction MD and are formed so that the rows are adjacent in the cross direction CD.
- the adjacent portions 11 S and 11 S in the cross direction CD are in a state in which one side is biased in the machine direction MD by about 1 ⁇ 2 of the length of the portion 11 S. Note that if the site 11 S adjacent to each other in the machine direction MD is spaced by a dimension m, and what portion 11 adjacent S in the cross direction CD is spaced by a dimension n.
- a pressing die 61 is intermittently formed in a machine direction MD that is also a circumferential direction of the first roll 135 a and a cross direction CD with respect to the machine direction MD.
- Each of the pressing dies 61 is made symmetrical in the machine direction MD and the cross direction CD.
- the die 61 is formed symmetrically with respect to the center line E that bisects the dimension in the machine direction MD and extends in the cross direction CD and the center line F that bisects the dimension in the cross direction CD and extends in the machine direction MD. It has been.
- Each of the pressing dies 61 also draws an arcuate line connecting the pair of side edges 62a and 62b extending in parallel to each other in the machine direction MD and the ends of the pair of side edges 62a and 62b in the cross direction CD. It has a pair of extended edge 63a, 63b.
- the side edges 62a, 62b and the end edge 63a intersect each other so as to form an acute angle, thereby forming protrusions 64a, 64b toward the front in the machine direction MD.
- the side edges 62a and 62b and the end edge 63b intersect with each other to form protrusions 65a and 65b toward the rear in the machine direction MD.
- the stamped portions 61 arranged intermittently in the machine direction MD have a predetermined portion 11 of the upper liner 11 that is lined up and down in the machine direction MD.
- the one located in the front is referred to as the planned portion 66 and the one located in the rear is referred to as the planned portion 67
- the pressing die 61 of the first roll 135a has a dimension (length) in the machine direction MD. Is adjusted so that the end edge portion 11d (see FIGS. 2 and 3) in the planned portion 66 can be squeezed, and subsequently the end edge portion 11c in the planned portion 67 can be squeezed.
- the pressing part in the edge part 11c can be formed as a series. These edge part 11d and edge part 11c are the edge parts which are in the plan parts 66 and 67 which adjoin in the machine direction MD, and are mutually opposing.
- stacking web 112 supplied to the 1st pressing roll 135 processes by the 1st tension controller 134 immediately before the 1st pressing roll 135, and is made to tension
- the plurality of pressing dies 61 has the layout shown in FIG. 5, that is, a row of the pressing dies 61 arranged in the machine direction MD, and a pressing die 61 adjacent to the row in the cross direction CD.
- a plurality of third and fourth pressing portions 23, 24 are formed over the entire width of the second laminated web 112.
- stacking web 112 by the 1 pressing roll 135 should just act on the 2nd lamination
- the pressing force required for such a first pressing roll 135 simultaneously presses the entire width of the second laminated web 112 so that the plurality of third and fourth pressing portions 23 and 24 are aligned in the axial direction of the first roll 135a. Therefore, the structure of the first squeeze roll 135 becomes simpler and easier to manufacture.
- the second laminated web 115 is strained in the machine direction MD under the action of the second tension controller 301 immediately before the second pressing roll 302, so that the second pressing The fifth laminated web 115 entering the roll 302 is not wrinkled or loosened.
- the third laminated web 113 that merges with the fifth laminated web 115 in the eighth step 108 has already been tensioned in the machine direction MD under the action of the first tension controller 134 in the fourth step 104. If necessary, the third laminated web 113 can be processed by the tension controller immediately before the second squeezing roll 302 in order to obtain a tension state similar to that of the laminated web 115.
- the two laminated webs 113 and 115 are connected to the second pressing roll.
- the composite 350 cut out from the second composite web 117 in the tenth step 110 the upper liner 11 and the lower liner 12 are both flat, and the composite 350 is not warped.
- the warp-free composite 350 obtained in this way is smoothly entered into the conveying nip roll 321 when it is traveled in the machine direction MD downstream of the tenth step 110, or an endless belt 322. It is possible to produce an effect that it is easy to transport without moving on the top. Further, when the endless belt 322 conveys the composite 350 while applying a vacuum pressure to the composite 350 on the belt, the flatter the composite 350 is, the more fixed it is on the belt. Becomes easier.
- the third pressing portion 23 or the fourth pressing portion 24 is formed in the upper liner 11 in the composite 350, and at least the front end portion of the composite 350 when traveling in the machine direction MD is more than the other portions.
- the complex 350 for facilitating the entry into the nip roll 321 may be one in which a squeezing part only needs to be formed at the front end portion thereof.
- FIG. 7 is an enlarged view of the portion VII of the panty liner composite 10 in FIG.
- the portion VII includes a part of the end edge portion 11d of the upper liner 11, and the second pressing portion 22 and the fourth pressing portion 24, which are aggregates of the small pressing portions 20, overlap each other at the end edge portion 11d.
- the fourth pressing portion 24 in FIG. 7 is formed by a portion in the vicinity of the side edge 62a and the end edge 63a of the pressing die 61 in FIG.
- the convex part 74a of the fourth pressing part 24 is formed by the protrusions 64a and 64b first contacting the second laminated web 112 in the pressing die 61, as is apparent from the pressing die 61 illustrated in FIG. Is done. After that, the edge 63a which is between the protrusions 64a and 64b and delimits the arc in the pressing die 61 contacts the second laminated web 112, and the edge 73a in the fourth pressing part 24 is formed.
- the protrusions 64a and 64b are brought into contact with each other in the thickness in the cross direction CD of the second laminated web 112. Even if the thickness of the portion between the protruding portion 64a and the protruding portion 64b is thicker than the thickness of the portion to be processed, the protruding portions 64a and 64b are not affected by the thick portion.
- the web 112 can be squeezed to form the convex portion 74a.
- the 1st pressing part 21 and the 2nd pressing part 22 of the 1st composite web 116 made using the 2nd pressing roll 302 are for joining the upper liner 11 and the lower liner 12 so that peeling is possible.
- the upper liner 11 and the lower liner 12 are peeled off from either of the end portions 18 and 19 (see FIG. 2) of the first pressing portion 21 and the second pressing portion 22. It is possible to start.
- the both end portions 18 and 19, for example, the portion 19 of the second pressing portion 22 in FIG. 7 is superimposed on the convex portion 74 a of the fourth pressing portion 24.
- the upper liner 11 and the lower liner 12 are not required by being formed so as to overlap the convex portion formed on the upper liner 11 corresponding to the protruding portions 64a, 64b, 65a, 65b of the pressing die 61. Occasionally, the problem of starting to peel off from both end portions 18 and 19 of the first pressing portion 21 and the second pressing portion 22 can be prevented.
- the upper liner 11 illustrated in FIG. 2 is cut out by processing the third laminated web 113 obtained by processing with the first pressing roll 135 with a cutter, and the upper liner 11 is stacked on the fifth laminated web 115.
- the first composite web 116 can also be made by processing with the second pressing roll 302.
- the upper liner 11 when formed in this way has a squeezed portion at the end edge portion 11c that becomes the tip when traveling in the machine direction MD, and therefore enters the nip roll (not shown) during the traveling process. Is easy.
- the second and third intermediate sheets 42 and 43 of the lower liner 12 used in the illustrated example make the body fluid absorption amount in the lower liner 12 the required amount, and the lower liner after the upper liner 11 is peeled off. 12 is intended to give rigidity so as not to be excessively flexible, and when the appropriate amount of fluid absorption and rigidity can be obtained in the lower liner 12 with only one of the sheets, The present invention can be practiced without the remaining sheet.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (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)
- Woven Fabrics (AREA)
Abstract
Description
11 第1パッド(上方ライナ)
11a 端部
11b 端部
12 第2パッド(下方ライナ)
20 圧搾痕
21 圧搾痕
22 圧搾痕
23 厚さを薄くした部位
24 厚さを薄くした部位
31 体液吸収層
32 体液吸収層
33 体液不透過層
41 体液吸収層
42 体液吸収層
43 体液吸収層
44 体液不透過層
61 押型
61a 頂部
72a 側縁
73a 端縁
74a 凸状部
111 ウエブ
113 加工ウエブ(第3積層ウエブ)
115 体液吸収性ウエブ
116 第1複合ウエブ
117 第2複合ウエブ
121 連続体(ウエブ)
122 連続体(ウエブ)
134 第1テンションコントローラ
135 圧搾ロール(第1圧搾ロール)
301 第2テンションコントローラ
302 第2圧搾ロール
Claims (11)
- 互いに直交する縦方向と横方向と厚さ方向とを有し、前記厚さ方向には、体液吸収層と体液不透過層とが剥離不能に重なり合い、前記縦方向の両端部のうちの少なくとも一方の端部が、前記両端部の間に位置する中間部よりも厚さが薄くなるように形成してある体液吸収性の第1パッドと、前記第1パッドの前記体液不透過層に剥離可能に接合している体液吸収性の第2パッドとを含んだ使い捨ての体液処理用パッド複合体の製造方法であって、
前記体液吸収層と前記体液不透過層との連続体が剥離不能に接合しているウエブを機械方向へ走行させながら前記機械方向へ回転する一対の圧搾ロールの間を通過させ、前記ウエブのうちで前記両端部のうちの少なくとも一方の端部となるべき部位を前記圧搾ロールによって加圧して厚さを薄くし、前記厚さを薄くした部位が前記機械方向へ所要の間隔をあけて縦列している加工ウエブを作り、前記加工ウエブおよび前記加工ウエブから切り出した複数の前記第1パッドのいずれかを前記機械方向へ走行させながら前記体液不透過層に体液吸収性ウエブを重ねて剥離可能に接合することにより第1複合ウエブを作り、前記第1複合ウエブにおける前記体液吸収性ウエブには体液不透過性ウエブを剥離不能に接合し、前記体液不透過性ウエブには前記第2パッドを前記パッド複合体の着用者の着衣に剥離可能に止着するための粘着剤を塗布し、前記粘着剤はそれを保護するセパレータ用ウエブによって被覆することによって第2複合ウエブを作り、前記第2複合ウエブから前記パッド複合体を得ることを特徴とする前記製造方法。 - 前記加工ウエブは、前記機械方向へ縦列している前記厚さを薄くした部位の列が前記機械方向に対しての交差方向に一致する前記ウエブの幅方向に複数形成されているものであって、前記加工ウエブからは、前記幅方向において、複数の前記第1パッドを切り出すことが可能である請求項1記載の製造方法。
- 前記体液不透過層に前記体液吸収性ウエブを剥離可能に接合する方法は、重なり合う前記加工ウエブおよび前記第1パッドのいずれかと前記体液吸収性ウエブとに対する局部的な加圧によって前記加工ウエブおよび前記第1パッドのいずれかに一連の圧搾痕を形成して前記圧搾痕において前記加工ウエブおよび前記第1パッドのいずれかと前記体液吸収性ウエブとを互いに機械的に交絡させる接合方法であり、一連の前記圧搾痕の一部は前記厚さを薄くした部位と重なり合うように形成する請求項1または2記載の製造方法。
- 前記厚さを薄くした部位の列が前記ウエブの幅方向に複数形成されている前記加工ウエブでは、前記列の隣り合うものどうしの間において、前記厚さを薄くした部位どうしが前記幅方向で隣り合うことがないように互いに前記機械方向へ偏倚している請求項2または3に記載の製造方法。
- 前記厚さを薄くした部位は、前記体液吸収層の表面において前記縦方向へ互いに並行して延びる一対の側縁と前記側縁のそれぞれと鋭角で交差するような線を画いて前記横方向へ延びる端縁とを有している請求項1~4のいずれかに記載の製造方法。
- 前記圧搾痕は、前記厚さを薄くした部位における前記側縁のそれぞれと前記端縁とが交差して形成している前記厚さを薄くした部位においての凸状部と重なるように形成する請求項5記載の製造方法。
- 請求項1記載の製造方法を実施するための使い捨ての体液処理用パッド複合体の製造装置であって、前記一対の圧搾ロールの少なくとも一方のロールの周面には、前記体液吸収層と前記体液不透過層との連続体が剥離不能に接合している前記ウエブを圧搾して前記ウエブに前記厚さを薄くした部位を形成するための隆起状の押型が設けられ、前記押型の頂部における前記一方のロールの周方向の寸法は、前記機械方向において逐次切り出す前記第1パッドの一つと、前記第1パッドの一つの次に切り出す前記第1パッドとの間で対向する前記厚さを薄くした部位のそれぞれを一連のものとして形成することができる長さに調整されていることを特徴とする前記製造装置。
- 前記押型は、前記一方のロールの周方向と軸方向とに間欠的に形成されている請求項7記載の製造装置。
- 前記押型は、前記一方のロールの軸方向の寸法を二等分する中心線と周方向の寸法を二等分する中心線とに関して対称に形成されており、前記周方向へ互いに並行して延びる一対の側縁部と前記一対の側縁部それぞれと鋭角で交差するような線を画いて前記軸方向へ互いに並行して延びる端縁部とを有している請求項7または8記載の製造装置。
- 請求項8に記載の製造装置は、前記加工ウエブの前記体液不透過層に前記体液吸収性ウエブが重なってこれら両者が剥離可能に接合している前記第1複合ウエブを作る装置を含むものであり、前記装置が、前記加工ウエブにおける前記厚さを薄くした部位を形成するための前記圧搾ロールの下流側に設けられた一対の加熱可能なロールで形成された第2圧搾ロールである請求項7~9のいずれかに記載の製造装置。
- 前記第2圧搾ロールは、前記第1複合ウエブにおける前記体液吸収層に対して前記横方向において対称であって前記縦方向へ延びて二条の列を成す一連の圧搾痕を形成して、前記圧搾痕において前記体液不透過層と前記体液吸収性ウエブとを剥離可能に機械的に交絡させるものであり、前記機械方向における前記圧搾ロールの上流側および前記第2圧搾ロールの上流側のいずれかには前記機械方向へ走行する前記ウエブおよび前記加工ウエブのいずれかに対しての第1テンションコントローラが設けられ、前記第2圧搾ロールの上流側にはまた前記機械方向へ走行する前記体液吸収性ウエブに対しての第2テンションコントローラが設けられている請求項10記載の製造装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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EP09846834.1A EP2452659A4 (en) | 2009-06-30 | 2009-07-21 | METHOD FOR PRODUCING DISPOSABLE COMPOSITE TRIM FOR TREATMENT OF BODY FLUIDS, AND PRODUCTION DEVICE THEREOF |
US12/524,055 US8535468B2 (en) | 2009-06-30 | 2009-07-21 | Method for making disposable bodily fluid handling composite pad |
CN200980160202XA CN102458329A (zh) | 2009-06-30 | 2009-07-21 | 一次性的体液处理用衬垫复合体的制造方法及制造装置 |
SG2011090065A SG176689A1 (en) | 2009-06-30 | 2009-07-21 | Method and apparatus for making disposable bodily fluid absorbent composite pad |
BRPI0924511A BRPI0924511A2 (pt) | 2009-06-30 | 2009-07-21 | método e aparelho para fabricação de almofadado composto descartável absorvente de fluído corpóreo |
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JP2009-156294 | 2009-06-30 | ||
JP2009156294A JP5580555B2 (ja) | 2009-06-30 | 2009-06-30 | 使い捨ての体液処理用パッド複合体の製造方法 |
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US (1) | US8535468B2 (ja) |
EP (1) | EP2452659A4 (ja) |
JP (1) | JP5580555B2 (ja) |
CN (1) | CN102458329A (ja) |
AR (1) | AR077298A1 (ja) |
AU (1) | AU2009324276A1 (ja) |
BR (1) | BRPI0924511A2 (ja) |
CO (1) | CO6361878A2 (ja) |
SG (1) | SG176689A1 (ja) |
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US11768321B2 (en) | 2000-01-21 | 2023-09-26 | Viavi Solutions Inc. | Optically variable security devices |
CN105705126B (zh) * | 2013-11-06 | 2019-05-14 | 易希提卫生与保健公司 | 包括一个以上的堆叠吸收垫的吸收性物品 |
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2009
- 2009-06-30 JP JP2009156294A patent/JP5580555B2/ja not_active Expired - Fee Related
- 2009-07-21 EP EP09846834.1A patent/EP2452659A4/en not_active Withdrawn
- 2009-07-21 WO PCT/JP2009/063020 patent/WO2011001542A1/ja active Application Filing
- 2009-07-21 AU AU2009324276A patent/AU2009324276A1/en not_active Abandoned
- 2009-07-21 BR BRPI0924511A patent/BRPI0924511A2/pt not_active IP Right Cessation
- 2009-07-21 US US12/524,055 patent/US8535468B2/en active Active
- 2009-07-21 SG SG2011090065A patent/SG176689A1/en unknown
- 2009-07-21 CN CN200980160202XA patent/CN102458329A/zh active Pending
-
2010
- 2010-06-29 TW TW099121234A patent/TWI508713B/zh not_active IP Right Cessation
- 2010-06-30 AR ARP100102335A patent/AR077298A1/es unknown
- 2010-08-06 CO CO10096559A patent/CO6361878A2/es active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
EP2452659A1 (en) | 2012-05-16 |
BRPI0924511A2 (pt) | 2019-09-24 |
CN102458329A (zh) | 2012-05-16 |
TW201116261A (en) | 2011-05-16 |
US8535468B2 (en) | 2013-09-17 |
AR077298A1 (es) | 2011-08-17 |
EP2452659A4 (en) | 2016-01-13 |
CO6361878A2 (es) | 2012-01-20 |
TWI508713B (zh) | 2015-11-21 |
US20110155298A1 (en) | 2011-06-30 |
JP2011010771A (ja) | 2011-01-20 |
JP5580555B2 (ja) | 2014-08-27 |
AU2009324276A1 (en) | 2010-08-05 |
SG176689A1 (en) | 2012-01-30 |
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