JP4133773B2 - Manufacturing method of article - Google Patents

Description

  The present invention relates to an article manufacturing apparatus and manufacturing method, and more particularly, to a worn article manufacturing apparatus and manufacturing method.

  A wearing article having a side panel is known (for example, Patent Document 1). The side panel forms part of the body of the diaper and pants and protrudes left and right from the front and back.

Diapers or pants having side panels are manufactured in a so-called longitudinal flow (for example, Patent Document 2 and Patent Document 3). "Vertical flow" refers to a state in which the width direction of the diaper or pants is set in a direction perpendicular to the flow direction of the web, and the manufacturing method in which the width direction of the diaper or pants is opposite to the "lateral flow" along the flow direction. Say.
JP 2002-532195 A (summary) Japanese translation of PCT publication No. 2002-518096 (FIG. 1) JP-A-2-4364 (FIG. 20)

  In general, the side panel is expensive and it is difficult to produce the side panel in-line. Then, this invention aims at manufacturing the wearing article which has the member similar to a side panel cheaply and in-line in order to solve such a subject.

  The manufacturing method of an article of the present invention includes a step of supplying a continuous first web, a step of applying an adhesive intermittently, or a step of applying an adhesive to an elastic member, and stretching the continuous elastic member. A cutting step in which the elastic member is cut and divided in a state of being cut, a first bonding step of sequentially bonding the elastic member to the first web via the adhesive in a state where the cut elastic member is stretched, An arrangement step of disposing the second web on the first web to which the elastic member is bonded in a state where the elastic member is stretched, and inserting the elastic member between the first web and the second web. And a second bonding step of bonding the first web, the elastic member, and the second web by heat fusion.

  Since the elastic member is inserted between the first web and the second web in the stretched state, the laminated portion in which the first web, the elastic member, and the second web are arranged is elastic after manufacturing the wearing article. The member shrinks to form a gathered article of wear. Therefore, an article can be manufactured in a so-called lateral flow (inline) without purchasing a member corresponding to a side panel in which an elastic member is arranged in advance. For this reason, even if it does not purchase the expensive side panel which has arrange | positioned the elastic member previously, the gathers of articles | goods can be formed. Therefore, the manufacturing cost can be reduced.

  The gathers may form fit gathers for articles or gathers for side panels.

  In the second bonding step, a plurality of ventilation holes including through holes may be formed by heat embossing in the laminated portion where the first web, the elastic member, and the second web are arranged. In this way, the formation of the air holes can prevent stuffiness during wearing.

  You may further provide the arrangement | positioning process which arrange | positions an absorber in the position between the said elastic members intermittently arrange | positioned, and manufactures articles | goods so that the said elastic member may not be arrange | positioned to a part of the said absorber.

  If the elastic member is essentially not disposed in the portion where the absorbent body is disposed, the thick absorbent body is not easily affected by the shrinkage of the elastic member and the wearing feeling is improved.

As the elastic member Ru using fabric-like elastic film. Unlike the thread-like member, the fabric-like member can be surface-bonded. In the application step, the adhesive is applied to the upstream end portion and the downstream end portion of the divided elastic member. It becomes easy to form a laminated member. In this case, if the adhesive is not applied to at least a part between the both end portions, it is possible to reduce the feeling of gathering due to the adhesive.

  The width of the first web is wider than the width of the elastic member, and the elastic member may be disposed on both side edges in the width direction of the first web or in the vicinity thereof (near one end and the other end in the width direction). Good. In this way, by arranging the elastic member in a part in the width direction of the first web, the fit gather can be formed by the elastic member.

  The first web may constitute an outer material of an article to be worn, for example, a liquid-permeable or liquid-impermeable nonwoven fabric may be employed. Moreover, you may employ | adopt the arrangement | positioning body which has arrange | positioned the design sheet | seat with which the pattern was attached to a part or whole surface of the said nonwoven fabric.

  The second web may constitute an inner material of a wearing article, or may employ a liquid-permeable or liquid-impermeable nonwoven fabric.

An elastic film is adopted as the elastic member . A plurality of holes or slits may be formed in the elastic film. As the adhesive, a hot melt resin may be adopted. In addition, since the first and second webs and the elastic member are bonded by heat fusion, they may be formed of a thermoplastic resin material having excellent adhesion affinity.

  The article may be a worn article. Wearing articles include sanitary napkins, disposable diapers, disposable articles such as disposable pants or bandages, products or semi-finished products, and woven fabrics, non-woven fabrics, liquid permeable sheets or liquid impermeable sheets A single body and an arrangement body may be included.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an example of a worn article manufactured by the manufacturing apparatus or manufacturing method of the present invention.

  The wearing article 300 includes a first body 301, a second body 302, and an absorber C. Both end portions 303 of the first body portion 301 and both end portions 303 of the second body portion 302 are connected. Further, one end of the absorber C is connected to the first body 301 and the other end of the absorber C is connected to the second body 302. The absorbent body C can absorb and retain the body fluid of the wearer, such as urine and blood.

  An elastic member F is disposed on the first body 301 and the second body 302. As the elastic member F shrinks, the wearing article 300 fits the wearer.

  In the wearing article manufactured by the manufacturing apparatus or the manufacturing method of the present invention, the portions of the first body portion 301 and the second body portion 302 where the absorber is disposed are not contracted by the elastic member F. High wearing articles can be manufactured. For this reason, the elastic member F is basically not disposed in the first body 301 and the second body 302 where the absorber C is disposed.

  Here, the first body part and the second body part may be connected to cover at least a part of the absorber. Below, an example of the manufacturing apparatus which manufactures the wearing article with which a 1st trunk | drum and a 2nd trunk | drum are integrated is demonstrated using FIG.

  The manufacturing apparatus includes a first placement device 51, a second placement device 52, a third placement device 53, a heat fusion device 50, and an assembly station 54.

  The first arrangement device 51 sucks the design sheet Ds conveyed by the belt 51a to the anvil roll 51b, cuts it by the cutter roll 51c, and arranges the design sheet Ds on the first web W1. A plurality of suction / exhaust holes for sucking the design sheet Ds are opened on the surface of the anvil roll 51b. Suction is stopped when the design sheet Ds is disposed on the first web W1. Alternatively, the design sheet Ds may be easily separated from the anvil roll 51b by exhausting air from the suction / discharge holes.

  Further, instead of the anvil roll 51b, a re-pitch drum used in the second arrangement device 52 described later may be used. The first web W1 may be a non-woven fabric.

  The design sheet Ds shows a pattern, a color, or a combination of these. For example, figures and / or characters are represented on the design sheet Ds. In order to conceal the defects at the end of the elastic member F, for example, a design sheet Ds having a length longer than the interval at which the elastic member F is disposed on the first web W1 may be disposed on the first web W1. When the second web W2 is used as the outer material, the design sheet Ds may be disposed on the second web. In addition, the design sheet Ds is not arranged when a pattern, color, or a combination of these is previously displayed on the first web W1 or when the cost of the wearing article is reduced. That is, the manufacturing apparatus may not have the first placement device 51.

  FIG. 3A is a schematic side view of an example of the second arrangement device 52. FIG.3 (b) is a schematic front view of the re-pitch drum 2 of the 2nd arrangement | positioning apparatus 52 of Fig.3 (a). The second placement device 52 stretches the elastic member F, cuts the stretched elastic member F into a predetermined length, widens the distance between the cut elastic members F, and places the elastic member F on the first web W1. For example, the second arrangement device 52 includes a supply unit 1, a re-pitch drum 2, a cutter 3, and a transfer unit 4.

  The elastic member F supplied from the upstream is supplied to the downstream re-pitch drum 2 while being stretched by the supply unit 1. The re-pitch drum 2 cuts the stretched elastic member F into a predetermined length, and conveys the cut elastic member F to the transfer unit 4. The transfer unit 4 transfers the elastic member F to the first web W1.

Supply unit 1 has, for example, a conveyor 10 which rotates at a medium speed V _M. Elastic member F that is conveyed from the upstream at a slower low velocity V _L than medium speed V _M is accelerated to the medium velocity V _M by the conveyor 10. Therefore, the elastic member F that is conveyed at a low velocity V _L is accelerated by the conveyor 10 is stretched by the speed difference between the medium speed V _M and the low velocity V _L. The stretched elastic member F is supplied onto the downstream pad Pi.

  FIG. 4A is a diagram illustrating a state in which the pad P1 receives the continuous elastic member F. FIG. The re-pitch drum 2 has a plurality of pads Pi that receive the elastic member F, and receives the elastic member F at the receiving position RP. After the pad P1 receives the continuous elastic member F, the continuous elastic member F is cut to a predetermined length by the cutter 3.

  The cutter 3 has a cutter roll 30 and at least one blade 31 provided around the cutter roll 30. After the elastic member F is divided by the cutter 3 for each pad Pi, the interval between the adjacent pads Pi, Pi + 1 is increased, so that the interval between the elastic members F is increased (re-pitched).

  An anvil 23 with which the blade 31 of the cutter 3 abuts is provided at the rear end portion 26 in the rotation direction of the pad Pi. Due to the rotation of the cutter roll 30, the blade 31 comes into contact with the anvil 23 at a predetermined timing, and the elastic member F is cut at the cutting position CP (FIG. 3A).

  In addition, it is preferable to set the moving speed of the elastic member F on the pad Pi and the peripheral speed of the blade 31 at the time of cutting to substantially the same speed. This is because the life of the blade 31 is shortened if there is a speed difference. If the life of the blade 31 is not taken into consideration, the moving speed of the elastic member F on the pad Pi and the peripheral speed of the blade 31 need not be the same. An anvil may be formed at the front end 25 of the pad Pi.

  The pad Pi of the re-pitch drum 2 is provided around the drum 20. As the re-pitch drum 2, a mechanism described in JP-A-63-317576 and JP-T-2000-514024 may be used. Further, the pad Pi may be provided on the conveyor instead of the drum and may be re-pitched.

  For example, the peripheral speed of the pad Pi changes by the cam mechanism, the link mechanism, a combination thereof, and the like, and the interval between the pads Pi is changed. The structure of one pad Pi will be described below. The pad Pi performs the same operation at a predetermined position.

  FIG. 4B is a diagram showing how the re-pitch drum 2 cooperates with the transfer unit 4 to transfer the cut elastic member F to the first web W1. FIG. 5 is an enlarged view of the vicinity of the transfer unit 4.

  As shown in FIG. 5, the holding surface 21 on which the pad Pi holds the elastic member F is formed in an arc shape along the extending direction Y of the elastic member F. A plurality of holding elements 22 may be provided on the holding surface 21.

  For example, an opening may be employed as the holding element 22. The opening is connected to an air source (not shown). When air is sucked from the opening and receives the elastic member F at a predetermined timing, the extended elastic member F is held on the holding surface 21.

  When the stretched elastic member F is delivered, the holding by the opening is sequentially released from the opening at the front end 25 of the pad Pi toward the opening at the rear end 26.

  When an opening is used as the holding element 22, when the pad Pi reaches the delivery position SP, air is discharged in order from the front end 25 of the opening, and the elastic member F is sequentially moved from the front end to the first web W <b> 1 on the transfer unit 4. It may be transferred onto.

  The holding element 22 is preferably set so that the holding force (suction force) at the front and rear end portions 25 and 26 (both ends) is larger than the center portion in the extending direction Y of the elastic member F. This is because the stretched elastic member F needs to be held stronger near the end than near the center. As a method of changing the holding force, for example, the holding force at both ends may be increased by arranging the openings closer to both end portions than near the center of the pad Pi. The elastic member F stretched by such a method can be held in an almost uniform stretched state. The pad Pi may further have a holding portion described below in addition to the opening.

  For example, when the elastic member F is a member having fine irregularities on the surface such as urethane foam, fine irregularities may be formed on the holding surface 21 (holding portion) indicated by hatching in FIG. As a method for obtaining such irregularities, a member having a large friction with the urethane foam, such as a paper file, may be affixed on the holding surface 21, or the irregularities may be cut directly on the holding surface 21.

  On the other hand, when the elastic member F is a member having a smooth surface such as a film, for example, the holding surface (holding portion) 21 may be formed smoothly and the elastic member F may be in close contact with the holding surface 21. Further, in order to prevent the elastic member F from slipping on the pad, the holding surface 21 may be formed of a rubber-based member.

  Further, as the holding element, for example, a needle provided so as to protrude and retract from the holding surface 21 of the pad Pi to the elastic member F side may be provided. For example, a plurality of holes are formed in the pad, and an elastic body such as a spring is inserted into the holes. A needle is connected to the other end of the elastic body, and the needle protrudes by the elastic body. When the pad Pi receives the elastic member F, the needle has come out on the surface of the pad, and can hold the elastic member F in an extended state. When the elastic member F is delivered, the needle contacts the transfer roll, the needle is retracted into the hole, and the holding of the elastic member F is released. By providing such a retractable needle, the holding portion can hold the net-like elastic member. In this case, the needles are provided at the front end portion 25 and the rear end portion 26 of the first pad P1.

  As shown in FIG. 5, the first web W <b> 1 is conveyed while contacting the tangential direction of the transfer roller 40, but the first web W <b> 1 may be wound around the transfer roller 40. In any case, in order to transfer the elastic member F to the first web W1, it is necessary to press the elastic member F and the first web W1 between the pad Pi and the transfer roller 40 and press them together. Therefore, it is preferable that the peripheral speed of the transfer roller 40 is substantially the same as the conveyance speed of the first web W1.

  The re-pitch drum 2 shown in FIG. 3B is provided with a pair of pads Pi and pads Qi apart from each other. This is because the pads Pi and Qi place the elastic members F on the abdomen and the back, respectively.

  By the way, when the elastic member F is a urethane foam, it is difficult to apply an adhesive directly to the urethane foam. This is because the adhesive penetrates into the urethane foam and a sufficient adhesive force cannot be obtained. In this case, as shown in FIG. 5, a coating device 41 is provided upstream of the transfer roller 40, and the adhesive B is applied onto the first web W1. When the elastic member F is an elastic film or an elastic nonwoven fabric, the adhesive may be directly applied to the elastic member. Further, an adhesive may be applied to both the first web W1 and the elastic member F. These adhesions may be temporarily fixed.

  The third arrangement device 53 shown in FIG. 2 further arranges the second web W2 on the first web W1 on which the elastic member F is arranged. The second web W2 may be a non-woven fabric.

  The heat fusion apparatus 50 shown in FIG. 2 has an embossing roll 50a and an anvil roll 50b. The embossing roll 50a has a plurality of protrusions, and performs a plurality of embossing operations on the composite web N on which the first web W1, the elastic member F, and the second web W2 are arranged. The first web W1, the elastic member F, and the second web W2 are bonded (joined) by energy such as heat or vibration from the protrusions of the embossing roll 50a. A plurality of through holes may be formed in the composite web N by the protrusions of the embossing roll 50 a passing through the composite web N. The shape of the protrusion may be a pin shape.

  The assembly station 54 places the absorbent body C on the composite web N. The assembly station 54 includes a transport unit 54b that transports the absorber C to the drum 54a, and a drum 54a that combines the absorber C and the composite web N. The transport unit 54b transports the absorber C at a predetermined interval Pc.

  In addition, the assembly station 54 may include a roll 54c for mixing the absorbent body C and the composite web N as necessary. The assembly station 54 can be arranged so that the absorber C and the elastic member F do not overlap with each other, and the absorber C can be prevented from being contracted by the elastic member F. However, a part of the absorbent body C may overlap with a part of the elastic member F in order to provide a margin for arranging the absorbent body C and to ensure freedom in design of the worn article.

  The absorber C may have any configuration as long as it can absorb liquid, particularly liquid discharged from the human body. For example, the absorber C includes a top sheet, a back sheet, and a core sandwiched between the top sheet and the back sheet (not shown). The topsheet can permeate the body fluid of the wearer, such as urine and blood. The top sheet may have a function of preventing the liquid from flowing backward. Further, a transfer sheet may be sandwiched between the top sheet and the core, and it may have a backflow prevention function. The core can absorb and hold liquid. The core has a fluff obtained by pulverizing pulp and / or a superabsorbent polymer. The core may be air laid. The back sheet does not transmit liquid. A polyethylene sheet can be used as the back sheet.

  Below, an example of the manufacturing method in embodiment of this invention is demonstrated using FIG.2, FIG.3 (b), FIG.5 and FIG.6 (a)-FIG.6 (e).

  2 arranges the design sheet Ds on the first web W1 supplied from the outside. In the case of the present embodiment, design sheets Ds are arranged at two locations on the back side and the ventral side. That is, the present embodiment has two first placement devices 51. Depending on the specifications, the design sheet Ds may be supplied only to the dorsal side or the ventral side, or may not be supplied at all.

  In order to apply the elastic member F to the first web W1 and / or the design sheet Ds in an extended state, the adhesive B (FIG. 3) is applied intermittently or continuously.

  The elastic member F is expanded by the supply unit 1 and is cut into a predetermined length by the second arrangement device 52. The adhesive B is applied to the end portion of the region where the elastic member F is to be disposed in the first web W1 and / or the design sheet Ds, but may be applied to both end portions of the elastic member F.

  2 and 5, the coating device 41 intermittently applies the adhesive B to a predetermined portion of the first web W1. 2 and 5, the design sheet Ds arranged on the first web W1 is omitted. In addition, if the first web W1 and the elastic member F are not hardened by the adhesion of the adhesive B (does not give the wearer an uncomfortable feeling), the adhesive B is used in the first web W1 and / or the design sheet Ds. You may apply | coat to the area | region where the elastic member F should be arrange | positioned, or the whole surface of the elastic member F.

  The elastic member F is disposed on the first web W1. Due to the applied adhesive B, the elastic member F maintains its stretched state. In the later step, when the elastic member F is bonded to the first web W1 by embossing or the like, this bonding may be temporarily fixed.

  The second web W2 is placed on the first web W1 on which the elastic member F is placed by the third placement device 53 (FIG. 2).

  In FIG. 6A, the adhesive B is applied to the end of the design sheet Ds, the elastic member F is arranged so as to connect the adjacent design sheet Ds, and the second web W2 is arranged thereon. It is a figure which shows a semi-finished product. FIG. 6B is a cross-sectional view of the semi-finished product taken along the cutting line XX. As shown in FIG. 6B, the elastic member F is sandwiched between the first web W1 and the second web W2.

  The composite web N on which the first web W1, the elastic member F, and the second web W2 are disposed is heat-sealed at a plurality of locations when passing between the embossing roll 50a and the anvil roll 50b shown in FIG. Be joined. As a method for heat-sealing, there is heat embossing, heat sealing, or sonic. When these webs or the like are joined, a plurality of through holes Ah are formed at least in a portion where the elastic member F is disposed. The through hole Ah (FIG. 6A) serves as a vent hole.

  Furthermore, when a vent hole is required, the elastic member F may have a plurality of slits. The slit may be added to the first web W1 and the elastic member F or the composite web N. However, if the elastic member F has a slit before the elastic member F is extended, it can be easily extended depending on the type of the elastic member F.

  The assembly station 54 arranges the absorbers C on the composite web N at a predetermined pitch Pc. FIG. 6C is a view showing the composite web N in which the absorber C is arranged. Although the absorber C is arrange | positioned between the elastic members F, a part of absorber C and a part of elastic member F may overlap. In the manufacturing apparatus shown in FIG. 2, the leg hole H1 is opened by the die cutter 80 having the cutter roll 80a and the anvil roll 80b shown by the broken lines before the absorber C is arranged. The leg hole H1 may be opened after the is placed.

  After that, when the composite web N is cut along the cutting line L shown in FIG. Then, a pants-type wearing article is manufactured.

  In the above-mentioned wearing article, the width of the first web W1 is wider than the width of the second web W2, and the width of the second web W2 is sufficient to cover the elastic member F (FIG. 6B). )). However, the second web W2 is a single sheet, and the width of the second web W2 and the width of the first web W1 may be substantially the same (FIGS. 6D and 6E). As the elastic member F, a thermoplastic elastic member may be used.

  Below, the manufacturing apparatus and manufacturing method which produce | generate the elastic member F from a thermoplastic elastic member and manufacture a wearing article are demonstrated using Fig.7 (a)-FIG.7 (d).

  FIG. 7A shows a second arrangement device 52 and a supply unit 150 used in place of the supply unit 1 of FIG. The supply unit 150 includes a generation unit 151 that generates the elastic member F and the conveyor 10 that extends the elastic member F. In order to generate the elastic member F, the generation unit 151 includes a gun 61 that injects the thermoplastic elastic member into a film shape, and a cooling roll 62 that cools the injected thermoplastic elastic member.

  As an example of the thermoplastic elastic member, an elastic hot melt resin is used. The elastic hot melt resin is a kneaded material composed of a thermoplastic polymer resin, a tackifier, a viscosity modifier, an antioxidant, a heat stabilizer, an ultraviolet absorber, a filler, a plasticizer, etc., and contains a solvent. Non-volatile adhesives may also be used. As the thermoplastic polymer resin, an olefin-based, rubber-based, polyamide-based, or polyester-based elastic resin may be used, or a single or a plurality of these may be blended. As the olefin resin, EVA (ethylene-vinyl acetate copolymer), APAO (amorphous, poly, alpha, olefin) or the like may be used. Examples of rubber resins include SIS (styrene / isoprene / styrene copolymer), SBS (styrene / butadiene / styrene copolymer), SEBS (styrene / ethylene / butylene / styrene copolymer), and SEPS (styrene / ethylene / styrene copolymer). Propylene / styrene copolymer) or the like may be used. The composition of the kneaded product may be adjusted as appropriate so that the elastic properties of the thermoplastic elastic resin are maximized, and the melt viscosity of the kneaded product can be discharged with a general-purpose hot melt applicator. May be adjusted.

  Moreover, as the elastic member F, a composite elastic member of a thermoplastic elastic member and a web (elasticity or extension) may be used. In this case, the thermoplastic elastic member is not necessarily in the form of a film, and may be in the form of a mesh or a plurality of lines. When the thermoplastic elastic member is mesh-shaped or linear, it is difficult to hold them alone, but it is possible to hold the mesh-shaped or linear thermoplastic elastic member via the web. Similarly, a composite elastic member may be generated by forming an elastic member such as LYKLER (registered trademark) into a thread rubber shape or a flat rubber shape and attaching the elastic member to the web.

FIG. 7B to FIG. 7D show an example of the generation unit 151.
In the example shown in FIG. 7B, the gun 61 applies a thermoplastic elastic member to the web W3, and the nip roll 66 sandwiches them. In the example shown in FIG. 7C, the gun 61 applies a thermoplastic elastic member to the cooling roll 62, the cooling roll 62 cools the thermoplastic elastic member, and the nip roll 66 includes the web W3 and the cooled thermoplastic elasticity. Insert the member. In the example shown in FIG. 7D, the gun 61 applies a thermoplastic elastic member to the belt conveyor 64, the cooling fan 65 cools the belt conveyor 64, and the nip roll 66 includes the web W3 and the cooled thermoplastic elastic member. Is inserted.

  The gun 61 shown in FIGS. 7B to 7D is not limited to one that injects a mesh-like or a plurality of linear thermoplastic elastic members, and may be a film-like one. In addition, the roll 62 in FIGS. 7A and 7C may be a chilling roll.

  As the material of the web W3, in addition to olefin-based, polyester-based, polyamide-based synthetic fibers such as polyethylene or polypropylene, regenerated fibers such as rayon and copper ammonia rayon, natural fibers such as cotton alone or blends, conjugates, etc. These composite fibers may be used. The web W3 exhibits a large extensibility in the flow direction, and may be obtained by an appropriate processing method such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, or a needle punch method. As the web W3, a web W3 having an extensibility in the flow direction (CD) of 150% or more and no significant extensibility in the width direction (MD) orthogonal to the flow direction may be used. A nonwoven fabric may be used as the web W3. As such a nonwoven fabric, for example, spunlace nonwoven fabric JP4040 / QR26 (26GSM) manufactured by Kuraray (registered trademark) may be used.

Below, the manufacturing method of another wearing article is demonstrated using Fig.8 (a)-FIG.8 (d).
FIG. 8A shows a semi-finished product of another worn article. The composite web N2 is shown in which the elastic members F are alternately arranged on the first web W1, and further the waist elastic member 70 is arranged thereon, and the second web W2 is arranged thereon. FIG. 8B shows a cross section of the composite web N2 cut along a broken line X3-X3.

  The elastic member F sandwiched between the first web W1 and the second web W2 is disposed in the vicinity of both side edges (one end and the other end in the width direction 101) of the composite web N2. Further, the phases of the elastic members F are shifted from each other by a half pitch position.

  For this reason, the pad Pi shown in FIG. 3B rotates at a phase shifted from the pad Qi. In order to shift the phase, a drum 20 for the pad Pi and a drum for the pad Qi may be provided. Further, although there is one drum 20, the position where the pad Pi is attached to the drum 20 and the position where the pad Qi is attached to the drum 20 may be shifted by the phase.

  Further, in order for the completed wearing article to tighten the waist around the wearer, an elastic member 70 indicated by a broken line in FIG. 2 may be sandwiched between the first web W1 and the second web W2. The same applies to the above-described embodiment.

  FIG. 8C shows the composite web N2 cut so that convex portions and concave portions appear alternately. This cutting is performed by, for example, a die cutter 60 indicated by a broken line in FIG. The die cutter 60 has a cutter roll 60a and an anvil roll 60b.

  The composite web N2 is divided into a body part 200 and a body part 201 by the die cutter 60 as shown in FIG. 8C, and the phases of the convex part of the body part 200 and the convex part of the body part 201 are matched. As a method for adjusting the phase, a dummy roll may be used.

  FIG. 8D is a diagram in which the absorber C is arranged so as to match the phases of the protrusions of the body part 200 and the protrusions of the body part 201 and connect the protrusions. Note that the body 200 and the body 201 are widened by a predetermined interval after the composite web N2 is cut and before the absorber C is disposed.

  Thereafter, when the body parts 200, 201 are cut along the cutting line L2, a diaper-type wearing article is manufactured, and the absorbent body C is folded in two so that the body part 200 and the body part 201 overlap, and the vicinity of the cutting line L2 is After sealing and cutting along the cutting line L2, a pants-type wearing article is manufactured.

  In addition, depending on how the composite web is cut, it is not necessary to match the phases of the body 200 and the body 201. FIG. 9 (a) shows an example of such a worn article or semi-finished product. Moreover, FIG.9 (b) shows the composite web N3 of the wearing article or semi-finished product shown to Fig.9 (a).

  Moreover, the trunk | drum of a wearing article may have a part of elastic member surrounding a leg periphery, and the absorber may have the remaining part of the elastic member surrounding a leg periphery. For example, FIG. 9 (c) shows an example of such a worn article or semi-finished product. Moreover, FIG.9 (d) shows an example of the absorber CL used for the wearing article or semi-finished product shown in FIG.9 (c). By combining the trunk portion 200L, the trunk portion 201L, and the absorber CL, the elastic members 71 and 72 fasten the wearer's legs.

  For example, the elastic member 71 is disposed when the second web is superimposed on the first web to which the elastic member F is fixed. At this time, the waist elastic member 70 may be disposed at the same time. The absorber CL includes a top sheet 73, a core 74, an intermediate sheet 75, and a back sheet 76. A core 74 is sandwiched between the top sheet 73 and the intermediate sheet 75, and an elastic member 72 is sandwiched between the intermediate sheet 75 and the back sheet 76.

  The elastic member 71 and the elastic member 72 can be arranged by moving the elastic member 71 or the elastic member 72 in a direction crossing the respective flow directions. When the absorber CL does not have the intermediate sheet 75, the elastic member 72 may be sandwiched between the top sheet 73 and the back sheet 76. Moreover, since the absorber CL has the intermediate sheet 75 unlike the absorber C, it is sufficient that at least one of the intermediate sheet 75 and the back sheet 76 is liquid-impermeable.

Below, an example of the manufacturing method of another wearing article is demonstrated using FIG. 2, FIG. 10 (a)-FIG.10 (e).
The second arrangement device 52 shown in FIG. 2 arranges the elastic members F extended near the center in the width direction 101 of the first web W1 at a predetermined interval. The third placement device 53 places the second web W2 thereon. The width of the elastic member F is wider than the width of the elastic member F in the back or abdomen used in the composite web N of FIG. This is because the elastic member F is later divided into a back part and an abdomen part. FIG. 10A shows the composite web N4. FIG. 10B is a cross-sectional view of the composite web N4 cut along a cutting line X4-X4.

  The 1st web W1, the elastic member F, and the 2nd web W2 are adhere | attached by the heat sealing | fusion apparatus 50 shown in FIG. Thereafter, the composite web N4 is cut into body portions 301 and 302 by the die cutter 60. FIG. 10C shows the composite web N4 cut by the die cutter 60. FIG.

  The trunk portions 301 and 302 are widened by a predetermined amount in the width direction, and the trunk portions 301 and 302 are bridged by the absorber C. That is, one end of the absorbent body C is connected to the body part 301, and the other end of the absorbent body C is connected to the body part 302.

  Further, as shown in FIG. 10D, elastic members 77 are arranged on both edge portions 304 of the first web W1 except for the bending allowance 305. After the elastic member 77 is arranged, the bending allowance 305 is folded to cover the elastic member 77. In this case, the end of the absorber C can be covered.

  Depending on the specifications, as shown in FIG. 10E, the body portions 301 and 302 and the absorber C may be cut to shape the leg hole H1. The shape of the leg hole H1 may be adjusted by a die cutter 80 indicated by a broken line in FIG.

  In the manufacturing method of this invention, as shown to Fig.6 (a), the process of arrange | positioning the elastic member for waists which fastens a waist is not necessarily required. This does not deny placing the waist elastic member on the worn article. For example, in the manufacturing method of the present invention, a waist elastic member may be sandwiched between the first web W1 and the first web W2 as shown in FIG. 8A, or as shown in FIG. Alternatively, the waist elastic member may be disposed on the first web W1, and the waist elastic member may be disposed by bending the first web W1. Moreover, in the manufacturing method of this invention, the elastic member for waists can be arrange | positioned by another well-known method.

It is a figure which shows an example of the wearing article manufactured with the manufacturing apparatus or manufacturing method of this invention. It is a figure which shows an example of the manufacturing apparatus of this invention. FIG. 3A is a schematic side view of the second arrangement device 52, and FIG. 3B is a schematic front view of the re-pitch drum 2 of the second arrangement device 52. (A) is a figure which shows a mode that the pad P1 receives the continuous elastic member F, (b) cooperates with the transfer part 4 and the re-pitch drum 2 cooperates the transcription | transfer part 4, and cut | disconnects the cut elastic member F to the 1st web. It is a figure which shows a mode that it transfers to W1. FIG. 6 is an enlarged view of the vicinity of a transfer unit 4. (A) is a figure which shows the composite web N, (b) is sectional drawing which cut | disconnected the composite web N of (a) by the cutting line XX, (c) is the composite by which the absorber C is arrange | positioned. It is a figure which shows the web N, (d) is a figure which shows the composite web N with the 2nd web W2, and (e) is the composite web N of (d) cut | disconnected by the cutting line X2-X2. It is sectional drawing. (A) is a figure which shows the 2nd arrangement | positioning apparatus 52 and the supply part 150, (b)-(d) is a figure which shows an example of the production | generation part 151 of the supply part 150. FIG. (A) is a figure which shows the composite web N2 of another wearing article, (b) is sectional drawing which cut | disconnected the composite web N2 with the cutting line X3-X3, (c) is convex part of the composite web N2. FIG. 4 is a view showing a structure in which concave portions are alternately appeared, and FIG. 4D is a view in which an absorbent body C is arranged on the cut composite web N2. (A) is a figure which shows an example of a wearing article or a semi-finished product, (b) is a figure which shows composite web N3, (c) is a figure which shows an example of a wearing article or semi-finished product, (d) FIG. 3 is a diagram illustrating an example of an absorber CL. (A) is a figure which shows composite web N4 of still another wearing article, (b) is sectional drawing which cut | disconnected composite web N4 with the cutting line X3-X3, (c) is cut | disconnected by the die cutter 60. (D) is a view showing that the absorbent body C and the elastic member 60 for the trunk portion are arranged on the cut and widened composite web N4, and (e) shows the leg. It is a figure which shows what adjusted the shape of the hole H1.

Explanation of symbols

100: Flow direction 201: Elastic member Ah: Through hole B: Adhesive C: Absorber F: Elastic member Fe: Upstream end, downstream end W1: First web W2: Second web

Claims (5)

Supplying a first web;
Supplying expanded first and second elastic members;
Cutting the first and second elastic members to produce a plurality of stretched first and second sheets;
Disposing the first sheet near one end in the width direction of the first web at a predetermined interval along the flow direction;
Disposing the second sheet near the other end in the width direction of the first web at a predetermined interval along the flow direction;
Disposing a second web so as to cover the first and second sheets;
Bonding the first sheet and the second sheet by thermal fusion between the first web and the second web to produce a laminate;
Disposing one end of the absorbent body between the first sheet and the first sheet;
A method for producing an article, comprising: disposing the other end of the absorbent body between the second sheet and the second sheet. In the step of arranging the second web, the second web is divided into two, one of the divided second webs covers the first sheet, and the other of the divided second webs is the first web. covering the second sheet, method of manufacturing an article of claim 1. Supplying a first web;
Supplying expanded first and second elastic members;
Cutting the first and second elastic members to produce a plurality of stretched first and second sheets;
Disposing the first sheet near one end in the width direction of the first web at a predetermined interval along the flow direction;
Disposing the second sheet near the other end in the width direction of the first web at a predetermined interval along the flow direction;
Disposing a second web so as to cover the first and second sheets;
Bonding the first sheet and the second sheet by thermal fusion between the first web and the second web to form a laminate;
Cutting the laminate to produce two continuous barrels;
Separating the two continuous body portions from each other in the width direction;
Disposing one end of the absorbent body between the first sheet and the first sheet;
A method for producing an article, comprising: disposing the other end of the absorbent body between the second sheet and the second sheet. Supplying a first web;
Supplying the stretched elastic member;
Cutting the elastic member to generate a plurality of stretched sheets;
Disposing the sheet at a predetermined interval along the flow direction near the center in the width direction of the first web;
Disposing a second web so as to cover the sheet;
Bonding the first web, the sheet, and the second web by thermal fusion to produce a laminate;
Cutting the laminate with the sheet to produce two continuous barrels;
Separating the two continuous body portions from each other in the width direction;
Placing one end of the absorber on one of the continuous body sections;
Disposing the other end of the absorbent body on the other of the continuous body parts. Further comprising the drilling process as the leg holes in the laminate, method of making an article according to one of claims 1 to 4.

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