JP2006212307A - Wearing article, and its manufacturing method and manufacturing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method and manufacturing apparatus of a wearing article strong even at a part where gathers are not formed. <P>SOLUTION: The manufacturing method comprises: a process of forming a first slack part H1 by slackening a part of a continuous first sheet-like material W1 in a first flow direction X1 while conveying the first sheet-like material; a process of forming a second slack part H2 by slackening a part of a continuous second sheet-like material W2 in a second flow direction X2 while conveying the second sheet-like material in the second flow direction X2: a process of introducing an expandable elastic member F between the first sheet-like material W1 and the second sheet-like material W2; a process of forming a laminated body W by laminating the first sheet-like material W1 and the second sheet-like material 2; and a process of forming a part to be gathers by pulling a part sandwiched by the slack parts H1 and H2 in the elastic member F and eliminating the slack of the first and second slack parts H1 and H2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a disposable wearing article, and a manufacturing method and manufacturing apparatus thereof.

  A laminate in which an elastic member is sandwiched between two sheet-like materials is well known. This laminated body is gathered by elastic members. However, if gathers are formed at the joints that are joined together, the gathers may make the joining difficult. Further, in the portion where the absorber is provided, the shrinkage due to gathers may cause the absorber to become stiff.

As such an improvement measure, Patent Document 1 below discloses a gather forming method.
JP 2004-223238 (FIG. 3)

  However, in this prior art, since there is only one sheet-like material in the portion where the gathers are not formed, the material is weak in the portion where the gathers are not formed. Therefore, inconvenience may be felt in the joining operation by the joining member at the time of wearing.

  Accordingly, a first object of the present invention is to provide a manufacturing method and a manufacturing apparatus for a worn article that is stiff even in a portion where no gathers are formed.

Various disposable diapers and pants have been proposed that have elasticity in the waistline direction and their manufacturing methods (Patent Documents 2 to 4).
Japanese Patent Laid-Open No. 7-80023 Special table 2000-500684 gazette Special Table 2000-510349

Patent Document 2 discloses a method of manufacturing a wearing article having a side panel formed of a material that can be stretched in the width direction (CD direction) orthogonal to the flow direction.
Patent Document 3 discloses a method of manufacturing a wearing article having a side panel formed by cutting a material that can be stretched in multiple directions without waste.
Patent Document 4 discloses a method of manufacturing a worn article having a side panel formed of a material that can be expanded and contracted in the CD direction.

  When forming a non-rectangular side panel, the material is wasted if unnecessary parts are trimmed from the sheet.

  Accordingly, a second object of the present invention is to provide a method for manufacturing a worn article that uses a side panel formed of a material that can be expanded and contracted in the flow direction and that is less likely to be wasted in the material.

  A manufacturing method of a wearing article according to the present invention is a manufacturing method of a wearing article in which an elastic member is sandwiched between two sheet-like objects, while conveying a first sheet-like article continuous in the first flow direction. A step of slackening a part of the first sheet-like material in the first flow direction to form a first slack portion; and the second sheet-like material while conveying the second sheet-like material continuous in the second flow direction. Forming a second slack portion by loosening a part of the first sheet-like material in the second flow direction, and introducing an extensible elastic member between the first sheet-like material and the second sheet-like material; The first slack portion and the second slack portion are matched with each other, and the introduced elastic member is sandwiched between the first sheet-like material and the second sheet-like material. A step of laminating the first sheet-like material and the second sheet-like material to form a laminate, and the elastic member With pulling the portion sandwiched between the slack portion, by removing the slack of the first and second slack portion, and a step of forming a portion to be the gathers.

In the laminated body produced by this manufacturing method, the elastic member introduced between the first and second slack portions is extended by removing the slack of the slack portions of the first and second sheet-like materials. When the stretched elastic member is contracted later, gathers are formed in the laminate.
On the other hand, continuous elastic members are also introduced into non-slack portions other than the slack portion of the first and second sheet-like materials. Since the elastic member of the non-slack portion does not essentially shrink, no gather is formed in the non-slack portion.
The gathers may be waist gathers or hip gathers in addition to the gathers on the side panel.
The portion where the gathers are not formed is often used for joining with other members. Since the portion where the gathers are not formed is formed by laminating two sheet-like objects, it is stronger than one sheet-like object, so that a large bonding strength is obtained and the bonding operation is easy. .

A manufacturing apparatus for carrying out the manufacturing method is a manufacturing apparatus for a wearing article in which an elastic member is sandwiched between two sheet-like objects, each of which has a plurality of first pads spaced apart from each other. A first rotating device that conveys the first sheet-like material while holding the first sheet-like material with one pad;
A second rotating device that has a plurality of second pads spaced apart from each other and conveys the second sheet-like material while holding the second sheet-like material with each of the second pads, and the first rotating device and the second rotating device The two-rotation device is arranged close to each other, and an elastic member supplied to the adjacent nip position is sandwiched between the first sheet-like material and the second sheet-like material, where the first rotation Each of the first pads of the device has a circumferential speed that changes individually for each first pad, and each of the second pads of the second rotating device has a circumferential speed that changes individually for each second pad, The pads of the first and second rotating devices respectively receive the first and second sheet-like materials at the first and second receiving positions upstream from the nip position, and rotate to the nip position after the receiving. The space between adjacent pads is small. The slack portion is formed in the first and second sheet-like materials, and the elasticity is provided for each pad between the first and second sheet-like materials on the pad at the nip position. While the members are introduced and sandwiched and stacked, each pad of the first or second rotating device is spaced from the adjacent pads while the pads rotate from the nip position to the delivery position downstream of the nip position. As the pad rotates from the nip position to the delivery position, the slack of the slack portion is removed and the elastic member of the slack portion is pulled.

According to another aspect of the present invention, there is provided a manufacturing method for a worn article in which side panels are joined to the left and right of a main body portion provided with a front portion covering the abdomen side of the wearer and a back portion covering the back side of the wearer. Cutting the sheet-like material along a corrugated cutting line having a predetermined wavelength extending in the flow direction of the sheet-like material while conveying the sheet-like material to form first and second divided sheets Cutting the first divided sheet at a predetermined interval in the flow direction to generate first and second cut panels for each wavelength; and the second divided sheet at a predetermined direction in the flow direction. Cutting at intervals to generate third and fourth cut panels for each wavelength, separating the generated first cut panel and second cut panel from each other in the flow direction, and the generated With the third cutting panel Separating the four cut panels from each other in the flow direction, separating the first cut panel and the third cut panel from each other in a width direction substantially perpendicular to the flow direction, and the second cut panel. A step of separating the first and fourth cut panels from each other in the width direction, and another sheet-like material serving as the main body having the front portion or the back portion at both ends in the width direction. A step of sequentially arranging between the cutting panel and the second cutting panel between the third cutting panel and the fourth cutting panel; and the four cutting panels in another sheet-like material serving as the main body. A step of joining, and a step of forming the side panel by cutting the joined cut panels along a cut line extending in the width direction.
In this manufacturing method, the four cutting panels are separated from each other in both the flow direction and the width direction, and these four cutting panels are joined to the left and right of the main body portion, so that they are formed of a material that can expand and contract in the flow direction. Diapers or pants can be manufactured using the side panels.
If each of the four cutting panels is cut in the middle between two main body portions adjacent to each other, so-called H-shaped diapers or pants are generated. On the other hand, if each of the four cutting panels is cut at a portion close to the end (both sides) of the front portion of the main body, that is, if the cutting panel joined to the back portion is cut so as to be long in the waistline direction, so-called T-shaped diapers or pants are created.
According to this manufacturing method, since four cutting panels are joined to a main part, it becomes easy to convey the joined cutting panel and main part.

  A manufacturing method according to the present invention is a method for manufacturing a worn article in which a pair of side panel panels are joined to the left and right of a main body provided with a front part covering the stomach side of the wearer and a back part covering the back side of the wearer. The sheet-like material is cut along a waveform cutting line having a predetermined wavelength extending in the flow direction of the sheet-like material while conveying the continuous sheet-like material, and the half-wave phase is mutually in the flow direction Forming the first and second divided sheets having substantially the same shape, and the first and second cut panels that are substantially line symmetrical with each other by cutting the first divided sheet at a predetermined interval in the flow direction. And generating the third and fourth cut panels that are substantially line-symmetric with each other by cutting the second divided sheet at a predetermined interval in the flow direction. And generate Separating the first cutting panel and the second cutting panel from each other in the flow direction, separating the generated third cutting panel and the fourth cutting panel from each other in the flow direction, the first and first Joining the two cut panels to the left and right of the main body having the front part or the back part at both ends in the width direction substantially orthogonal to the flow direction; and the third and fourth cut panels substantially in the flow direction. Joining to the left and right of the main body part different from the main body part having the front part or the back part at both ends in the orthogonal width direction.

This manufacturing method manufactures a wearing article in a state where the main body portion (core portion) is in a so-called lateral flow.
The side panel expands and contracts in the left-right direction of the main body, thereby creating a fit for the wearer.

In this manufacturing method, the first and second cutting panels are joined to the left and right of the main body part of the transverse flow, while the third and fourth cutting panels are joined to the left and right of the other main body parts of the transverse flow. A so-called T-shaped diaper or pant can be manufactured using a side panel formed of a stretchable material.
Further, since the sheet-like material is cut along a corrugated cutting line having a predetermined wavelength extending in the flow direction, the portion to be discarded when forming a non-rectangular side panel is reduced as much as possible.

In a preferred embodiment of this manufacturing method, the step of separating the first and second cut panels and the third and fourth cut panels in the width direction before the step of joining the panels. Is further provided.
Thus, by separating in the width direction, it is not necessary to arrange the main body portions in a staggered manner, so that the main body portion can be easily transported.
The main body may be arranged in a staggered manner. Further, the side panels may not be separated in the width direction.

  Another manufacturing method of the present invention is a wearable article in which a pair of side panel panels are joined to the left and right of a main body provided with a front part covering the abdomen side of the wearer and a back part covering the back side of the wearer. In the manufacturing method, the first and second divisions are performed by cutting the sheet-like material along a corrugated cutting line having a predetermined wavelength extending in the flow direction of the sheet-like material while conveying the continuous sheet-like material. Forming a sheet; cutting the first divided sheet at a predetermined interval in the flow direction to generate first and second cut panels for each wavelength; and Cutting at predetermined intervals in the flow direction to generate third and fourth cut panels for each wavelength; and between the first and second cut panels and the third and fourth cut panels The step of separating and generating A step of separating the first cutting panel and the second cutting panel from each other in the flow direction, a step of separating the generated third cutting panel and the fourth cutting panel from each other in the flow direction, and substantially orthogonal to the flow direction. Joining the first and second cutting panels to the left and right of the front part or the back part of the main body having the front part or the back part at both ends in the width direction, and a width direction substantially orthogonal to the flow direction. Joining the third and fourth cutting panels to the left and right of the front part or the back part of the main body part having the front part or the back part at both ends, and the front part or the back part not being joined; It has.

  In this manufacturing method, the four cutting panels are separated from each other in both the flow direction and the width direction, and these four cutting panels are joined to the left and right of the main body portion, so that they are formed of a material that can expand and contract in the flow direction. A so-called H-shaped diaper or pant can be manufactured using the side panel.

  Another manufacturing method of the present invention is a method for manufacturing a wearing article in which a pair of side panels are joined to the left and right of a main body, and a predetermined sheet extending in the flow direction of the sheet-like material while conveying the continuous sheet-like material. The step of cutting the sheet-like material along a corrugated cutting line having a wavelength of λ to form the first and second divided sheets, and the cutting of the leading end portion of the first divided sheet, The steps of generating both line-symmetric first and second cut panels for each wavelength and separating the leading end portion of the second divided sheet are repeated, so that third and fourth cut panels that are substantially line-symmetric with each other. Generating both for each wavelength, separating the generated first cut panel and second cut panel in the flow direction, and the generated third cut panel and fourth cut panel A step of separating in the flow direction, a step of changing the posture of the first and second cutting panels to a posture rotated by approximately 90 ° with respect to the flow direction, the first cutting panel and the second cutting panel, And a step of increasing the distance between the third and fourth cutting panels by approximately 90 ° with respect to the flow direction. The step of changing, the step of increasing the distance between the third cutting panel and the fourth cutting panel in the width direction, and the first main body portion of the sheet-like material that becomes the main body portion of the first cutting panel. A step of joining either the left or right predetermined first side, and a predetermined one of the left and right of the second main body portion downstream of the first main body portion of the sheet-like material serving as the main body portion. Joining to the second side and said third cutting Joining the channel to the predetermined second side of the first main body portion of the sheet-like material serving as the main body portion, and the fourth cutting panel to the second side of the sheet-like material serving as the main body portion. Joining to the predetermined first side of either the left or right of the two main body portions.

This manufacturing method manufactures a wearing article in a state where the main body portion (core portion) is in a so-called longitudinal flow.
The side panel expands and contracts in the left-right direction of the main body, thereby creating a fit for the wearer.

In this manufacturing method, a side panel formed of a material that can expand and contract in the flow direction can be used. The reason is that after the first and second cutting panels (third and fourth cutting panels) are rotated by 90 °, they are joined to the left and right of the main body part in the longitudinal flow.
Further, since the sheet-like material is cut along a corrugated cutting line having a predetermined wavelength extending in the flow direction, the portion to be discarded when forming a non-rectangular side panel is reduced as much as possible.

In these manufacturing methods, it is preferable that the side panel is formed without trimming the cut panel. The cut panel may be trimmed to form the side panel.
The trim cut is a cut to remove unnecessary portions for the purpose of improving the fit and beauty of the product. The terms “trim”, “trim waste”, “loss”, and “loss part” described later mean a part to be removed or a part removed at this time.

  A wearing article according to the present invention is a wearing article having a laminate in which a plurality of elastic members are arranged close to each other between a first sheet-like material and a second sheet-like material, the first sheet The sheet-like material and the second sheet-like material are heat-welded to each other between the plurality of elastic members, and the first sheet-like material and the second sheet-like material are mutually attached to the portion sandwiching the elastic members. It is characterized by not being thermally welded.

When two sheet-like objects are bonded to the entire surface with an adhesive, the laminated body is creased. On the other hand, when the entire surface is thermally welded, the elastic member is damaged, or the laminate is creased and the texture is impaired.
Thus, by sheet-welding only the sheet-like materials between the elastic members as in the worn article, the sheet-like materials can be laminated with a strong bonding force, and the texture is not impaired.

  The invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings, in which: However, the examples and figures are for illustration and description only and should not be used to define the scope of the present invention. The scope of the invention is defined solely by the appended claims. In the accompanying drawings, the same part numbers in a plurality of drawings indicate the same or corresponding parts.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 4 show a first embodiment.
Wearing article 1A:
First, the wearing article manufactured by this manufacturing method is demonstrated. FIGS. 1A and 1B show an example of a wearing article manufactured by the manufacturing method of the first embodiment. In FIG. 1A, a diaper (an example of a worn article) 1A includes a main body portion (core portion) C and a pair of side panels P1, P2.
The main body portion C includes a front portion CF that covers the wearer's stomach side, a crotch portion CM that is applied to the wearer's crotch, and a back portion CB that covers the wearer's back side. The main body C may be provided with an absorber, a leak-proof cuff, a leg gather, and the like (not shown).

The side panels P1 and P2 are formed by sandwiching a plurality of elastic members between two sheet-like objects. In the side panels P1 and P2, a central portion of the side panels P1 and P2 is provided with a contraction portion H in which gathers are formed by contraction of the elastic member. As the elastic member, thread rubber, flat rubber, You may employ | adopt the material containing a mesh-like rubber, a film, or a thermoplastic elastic member. As a material including the thermoplastic elastic member, a hot melt resin is considered.

  Both end portions of the side panels P1, P2 are formed in a flat shape where no gathers are formed, and fixed portions E1 fixed to the left and right of the back portion CB of the main body portion C are formed at one end portion, respectively. Has been. On the other hand, the other end portions of the side panels P1 and P2 are respectively formed with locking portions E2 to which bonding members T such as hook-and-loop fasteners and adhesive tapes are fixed.

  FIG.1 (b) shows the diaper 1A assembled in the wearing condition. While the crotch portion CM of the main body C shown in FIG. 1B is bent, the joining members T provided on the locking portions E2 of the side panels P1 and P2 are provided on the left and right sides of the front portion CF folded back. Fixed. The said contraction part H is expanded-contracted according to a wearer's physique and body shape, and the diaper 1A fits a wearer.

Manufacturing method (lamination process):
Next, an example of a method for producing the diaper 1A will be described.
As shown in FIGS. 2A and 2B, the side panels P1, P2 (P3, P4) are manufactured while conveying a laminate (an example of a sheet-like material) W in the flow direction (conveying direction) X. Is done. The laminated body W is introduced in a state where the elastic member F can be stretched between the first sheet-like object W1 and the second sheet-like object W2 shown in FIG. Manufactured by being laminated together. The elastic member is introduced between the sheet-like objects W1 and W2 in a state where the elastic member is not substantially stretched (not stretched).

Re-pitch device:
First, a method for generating the stacked body W will be described by exemplifying the rotating device in FIG. In addition, about description of this manufacturing apparatus whole, it demonstrates after explaining the manufacturing method of this wearable article.
As shown in FIG. 3, the rotating device includes first and second rotating devices 11 and 12 that are periodically shifted. The first and second rotating devices 11 and 12 are each provided with a plurality of first pads S1 and second pads S2 that are spaced apart from each other. The first pad S1 and the second pad S2 respectively convey the first sheet-like object W1 and the second sheet-like object W2 while being held by, for example, a vacuum. In addition, the tape T (FIG. 2 (a)) is previously affixed on the single side | surface by the side of the 1st pad S1 of the 1st sheet-like article W1 with the sticking apparatus which is not shown in figure.

  The first rotating device 11 and the second rotating device 12 are arranged so as to circumscribe each other via the both sheet-like objects W1, W2 and the elastic member F. The elastic member F is introduced into a nip position NP where both the rotating devices 11 and 12 are close to each other. An elastic member F led out from a lead-out device (not shown) is sandwiched between the first and second sheet-like objects W1, W2 at the nip position NP.

Here, the circumferential speed of each first pad S1 of the first rotating device 11 periodically changes individually for each first pad S1.
That is, the first pad S1 receives the first sheet-like material W1 at the first receiving position RP1 upstream from the nip position NP, and is decelerated while rotating to the nip position NP after receiving the first pad S1. The interval between adjacent first pads S1 is reduced. Therefore, at the nip position NP, the first slack portion H1 is formed in the first sheet-like material W1.

  Similarly, the second pad S2 receives the second sheet-like material W2 at the second receiving position RP2 upstream from the nip position NP, and is decelerated while rotating to the nip position NP after receiving the second sheet S2. The interval between the second pads S2 adjacent to each other is reduced. Therefore, at the nip position NP, the second slack portion H2 is formed in the second sheet-like material W2.

The first pads S1 and S2 of both the rotating devices 11 and 12 are rotated in synchronism so that the first slack portion H1 and the second slack portion H2 coincide with each other at the nip position NP. The elastic member F is sandwiched between the first sheet-like object W1 and the second sheet-like object W2 in a state where no tension is applied at the nip position NP (D1 position in FIG. 2A).
The elastic member F, the first sheet-like material W1, and the second sheet-like material W2 are laminated together to form a laminated body W, and conveyed toward the downstream delivery position SP by the first pad S1.

  After the lamination, each first pad S1 of the first rotating device 11 is accelerated while rotating from the nip position NP to the delivery position SP, and the interval between the adjacent first pads S1 is increased. Therefore, the slackness of the slack portions H1 and H2 is removed, and a contraction portion H in which the elastic member F is pulled in the flow direction X is formed in the slack portions H1 and H2 (D2 in FIG. 2A). position). On the other hand, portions (hereinafter referred to as “non-contracted portions”) E in which the elastic member F hardly contracts are formed in portions other than the slack portions H1 and H2. Therefore, the contraction parts H and the non-contraction parts E are alternately formed in the flow direction X in the laminate W.

The second pad S2 of the second rotating device 12 is also accelerated while rotating from the nip position NP to the first receiving position RP2, and the interval between the adjacent second pads S2 increases.
As the rotating device, for example, a device described in Japanese Patent Application Laid-Open No. 2004-223238 can be used.

  Here, before both sheet-like objects W1 and W2 are introduced into the rotating devices 11 and 12, an adhesive is applied in advance by the applying devices G1 and G2. Therefore, the sheet-like objects W1 and W2 and the elastic member F are bonded together to form a single laminated body W, and are conveyed downstream.

Manufacturing method (after lamination process):
As shown in FIG. 2A, the laminate W generated by the above-described method is cut along the corrugated cutting line CL (position D3 in FIG. 2A) while being conveyed. The cutting line CL is formed into a waveform having a predetermined wavelength extending in the flow direction X, for example. By the cutting, the laminated body W is divided into first and second divided laminated bodies N1 and N2 having substantially the same shape and shifted in half-wave phase in the flow direction X.

  As shown in FIG. 2B, after the division, the tip portion of the first divided laminate N1 is cut to a predetermined length along a cutting line 100 extending in the width direction Y. This cutting is repeated, and first and second cutting panels P1 and P2 that are substantially line-symmetric with each other are generated for each wavelength λ. Similarly, separation of the tip portion of the second divided laminate N2 is repeated, and third and fourth cut panels P3 and P4 that are substantially line-symmetric with each other are generated for each one wavelength λ.

Here, as described above, the contraction portion H in FIG. 2B is in a state where the slackness of the slack portions H1 and H2 is removed and the elastic member F is pulled at the position D2 in FIG. 2A. . Therefore, in the stacked body W, the tension in the flow direction X is removed, whereby the stretched elastic member F is contracted in the flow direction X, and a gather is formed in the contracted portion H.
After that, when the laminated body W is cut along the cutting line 100, the non-shrinkable portion E is connected to the fixing portions E1, E1 wide in the width direction Y, and the locking portions E2, E2 to which the tape T is fixed. Are generated respectively.
Accordingly, in each of the side panels P1 to P4, the gathered contraction portion H is disposed between the flat fixing portion E1 and the flat locking portion E2.

After the cutting panels P1 to P4 are generated, the first cutting panel P1 and the second cutting panel P2 are separated in the flow direction X. Similarly, the third cutting panel P3 and the fourth cutting panel P4 are separated from each other in the flow direction X. Further, the first and second cutting panels P1 and P2 and the third and fourth cutting panels P3 and P4 are spaced apart in the width direction Y substantially perpendicular to the flow direction X, respectively.
Therefore, each cutting panel P1-P4 will be in the state mutually spaced apart in the flow direction X and the width direction Y, as shown in FIG.2 (b).

  Through this process, the first cutting panel P1, the second cutting panel P2 line-symmetric with the first cutting panel P1, the third cutting panel P3 having a shape obtained by rotating the second cutting panel P2 by 180 °, and the first cutting Four types of panels, the fourth cut panel P4 having a shape obtained by rotating the panel P1 by 180 °, are generated.

Thereafter, the fixing portions E1 of the first and second cutting panels P1 and P2 are fixed to the left and right end portions of the back portion CB of the main body portion C indicated by a two-dot chain line to form side panels, and the diaper 1A is manufactured. On the other hand, the fixing portions E1 of the fourth and third cut panels P4 and P3 are joined to both end portions of the back portion CB of another main body portion C to form side panels, and another diaper 1A is manufactured.
As described above, since the fixing portion E1 is formed in a flat shape, it can be easily and strongly joined to the back portion CB of the main body portion C.

  Thus, as shown in FIG. 2 (b), the diapers 1A adjacent to each other have their front portions CF and back portions CB alternately formed upside down and side panels P1, P2 (P3) of each diaper 1A. , P4) is continuously manufactured in a state where the locking portion E2 slightly overlaps the front portion CF of the adjacent diaper 1A.

Manufacturing equipment:
Below, the manufacturing apparatus of this diaper 1A is demonstrated.
As shown in FIG. 4, the laminate W generated by the above-described method and apparatus is introduced into the downstream waveform slitter 20 after the deviation in the width direction Y (FIG. 2) is corrected by the web guide 19. .

  Waveform slitter 20: As shown after D3 in FIG. 2A, the laminated body W is continuously cut (slit) by the waveform slitter 20 along the waveform cutting line CL. The slits generate first and second divided laminates (an example of first and second divided sheets) N1 and N2 from the laminate W.

Re-pitch cutter 30:
After the slitting, both divided laminates N1 and N2 are introduced into a re-pitch cutter 30 shown in FIG.
The re-pitch cutter 30 includes a transport drum 30a having a plurality of pads (not shown) for sucking and transporting the tip end portions (corresponding to the fixing portion E1 and the locking portion E2) of the divided laminated bodies N1 and N2, and a cutter 30b. I have. The peripheral speed V2 of the pad provided on the transport drum 30a is periodically changed. That is, the pad of the conveying drum 30a is decelerated after receiving the divided laminated bodies N1 and N2 at the conveying speed V1 of the upstream divided laminated bodies N1 and N2.

As described above, the contraction portion H before deceleration is in a state in which the slackness of the slack portions H1 and H2 is removed and the elastic member F is pulled in the flow direction X after the position D2 in FIG. ing. In each of the divided laminates N1 and N2, the tension in the flow direction X is removed by the deceleration of the pad of the transport drum 30a, so that the stretched elastic member F contracts in the flow direction X, and the contraction portion A gather is formed in H. Note that portions on both sides of the cutting panels P1 to P4 other than the contracted portion H remain flat.
Here, since the contraction portion H is contracted after the formation of the two divided laminates N1 and N2, a portion that becomes a gather is stretched in the flow direction at the time of division (at the time of slitting). And can be performed accurately.

  After the deceleration, when the tip portions of the divided laminated bodies N1 and N2 are cut along the cutting line 100 (FIG. 2A) by the cutter 30b, the cutting panels P1 to P4 generated by the cutting are transferred to the transport drum. The speed may be increased when the sheet is conveyed downstream by 30a, and the panel P1, P2 and the panel P2, P1 may be separated in the flow direction X. That is, as indicated by D5 in FIG. 2B, the interval in the flow direction X between the generated cut panels P1, P3 (P2, P4) may be slightly widened.

  As the re-pitch cutter 30, a re-pitch device having a plurality of pads may be used. In such a case, the cutting panels P1 to P4 generated by cutting the cutter 30b are held by pads, and the pads are accelerated between the cutting position and the receiving position RP3, so that the flow directions of the cutting panels are You may make it widen the space | interval of X.

Widening re-pitch device 40:
After the cutting, the cutting panels P1 to P4 shown in FIG. 4 are conveyed to the downstream widening re-pitch device 40.
The widening re-pitch device 40 includes a plurality of third pads S3 spaced apart from each other. When the third pad S3 receives the cutting panels P1, P3 (P2, P4) from the re-pitch cutter 30 at the receiving position RP3, the third pad S3 sucks and holds the cutting panels P1, P3 (P2, P4), and at the arrangement point SP3, The cutting panels P1 to P4 are arranged on the conveyor 50 (after the position D7 in FIG. 2B).

  Here, while the third pad S3 of the widening re-pitch device 40 rotates from the receiving position RP3 to the arrangement point SP3, the interval between the adjacent third pads S3 increases (re-pitch), and the cutting panels P1, P3 (P2) , P4) is further widened in the flow direction X (D6 in FIG. 2B).

At the same time, the widening re-pitch device 40 separates (widens) the spacing in the width direction Y between the first and second cutting panels P1, P2 and the third and fourth cutting panels P3, P4.
As a mechanism for performing this widening, for example, each of the third pads S3 is provided in pairs in two rows in the width direction Y, and the cut panel P1 (P3) and the cut panel P2 (P4) divided in the width direction Y (FIG. 2). ) Is adsorbed to each of the pair of third pads S3. Thereafter, the pair of third pads S3 are moved away from each other in the width direction Y between the receiving position RP3 and the arrangement point SP3.

  In this way, after the widening re-pitch, after the cutting panels P1 to P4 are conveyed by the conveyor 50 at the delivery position SP3, they are arranged on both sides of the main body (not shown) to become side panels, as shown in FIG. The illustrated diaper 1A is created.

  In Example 1 described above, the tape T made of fasteners or the like is provided at the end portions of the side panels P1 and P2 as shown in FIG. 1A. However, as shown in FIG. T may not be provided. In such a case, as shown in FIG. 1 (d), after assembling the diaper 1A, the ends of the cut panels P1, P2 (P3, P4) are welded to the left and right of the front portion CF of the main body C, and the pants It may be formed into a mold.

Example 2:
5 and 6 show a second embodiment.
Each diaper 1B shown in FIGS. 5A, 5C, and 5E includes a main body C and four side panels (cut panels) P1 to P4. The cutting panels P1 to P4 are joined to the left and right of the front part CF and the back part CB of the main body part C, respectively, and are formed in a substantially “H” shape.

As shown in FIG. 5 (a), the cut panels P1 to P4 are formed by shifting the first and second divided laminates N1 and N2 cut into a waveform by a half pitch.
The first and second cutting panels P1, P2 are joined to the diaper 1B on the left and right of the front part CF of the main body C, respectively, and the third and fourth cuttings are made on the left and right of the back part CB of the main body C. Panels P3 and P4 are joined together.

  As shown in FIG. 5 (b), the other diaper 1B joins the end portions E3 of the first and third cutting panels P1, P3 to each other and the ends of the second and fourth cutting panels P3, P4. The parts E3 are assembled to each other by joining them together.

The cutting panels P1 to P4 of the diaper 1B shown in FIG. 5C are the first and second cutting panels P1 and P2 in which the valley side portions of the corrugated first and second divided laminates N1 and N2 are cut. The crest-side portion is cut to include third and fourth cutting panels P3 and P4 having a larger area than the first and second cutting panels P1 and P.
The first and second cutting panels P1, P2 are joined to the left and right of the front portion CF of the main body C. On the other hand, the third and fourth cutting panels P3 and P4 are joined to the left and right of the back portion CB of the main body C.

  As shown in FIG. 5 (d), the diaper 1B joins the end portions E3 of the first and fourth cutting panels P1, P4 to each other, and also connects the end portions E3 of the second and third cutting panels P2, P3. It is assembled into a pants shape by joining them together.

  Cutting panels P1 to P4 of the diaper 1B shown in FIG. 5 (e) are created using the first and second divided laminates N1 and N2 having the shape shown in FIG.

First, a method for creating the cutting panels P1 to P4 will be briefly described.
As shown in FIG. 6A, the stacked body W is cut by a corrugated cutting line CL to generate first and second divided stacked bodies N1 and N2. The cutting line CL is set so as to be shifted from the center in the width direction Y of the stacked body W. Therefore, as shown in FIG. 6 (b), the cut panels created by cutting the first and second divided laminates N1, N2 are first and second cut panels P1, P2 having a small area, Third and fourth cut panels P3 and P4 having a larger area than the first and second cut panels P1 and P2 are generated.
The cutting panels P1 to P4 of the present embodiment are spaced apart in the flow direction X and the width direction Y as in the first embodiment, but the method is the same as in the first embodiment. Omitted.

  As shown in FIG. 5E, the first and second cutting panels P1, P2 having a small area are joined to the left and right of the front portion CF of the main body C. On the other hand, the third and fourth cutting panels P3 and P4 having a large area are joined to the left and right of the back portion CB of the main body C.

  As shown in FIG. 5 (f), the diaper 1B joins the end portions E3 of the first and third cutting panels P1, P3 to each other and the end portion E3 of the second and fourth cutting panels P2, P4. It is assembled into a pants shape by joining them together.

  Next, another method for manufacturing a worn article by lateral flow will be described.

  As will be described below, this manufacturing method can be manufactured using either a so-called T-type or H-type diaper.

  As shown in FIG. 14A, the method of the present embodiment is the same as that of FIG. 2B until the four cutting panels P1 to P4 are separated in both the flow direction X and the width direction Y. Same as 1.

  That is, in FIG. 14A, both the cut panels P1, P2 are set so that the distance between the first cut panel P1 and the second cut panel P2 is slightly smaller than the length of the body portion C in the waistline direction. Are separated.

  On the other hand, the first and second cutting panels P1, P2 can be joined to the front part CF or the back part CB of the main body C, and the third and fourth cutting panels P3, P4 are the back part CB of the main body C. Alternatively, the first cut panel P1 and the third cut panel P3 are separated from each other, and the second cut panel P2 and the fourth cut panel P4 are separated from each other so that the front cut portion CF can be joined.

  The main body portions C are sequentially arranged between the first cutting panel P1 and the second cutting panel P2 that are separated as described above, and between the third cutting panel P3 and the fourth cutting panel P4.

  Simultaneously with this arrangement, the ends E1 and E2 of the cutting panels P1 to P4 are joined to the main body C. Thus, the composite body in which the cutting panels P1 to P4 and the main body C are connected can be easily transported.

  Thereafter, the cutting panels P <b> 1 to P <b> 4 are cut in the vicinity of the front portion CF of the main body C as indicated by a cutting line 300 indicated by a broken line in FIG. In this case, a T-type diaper (FIG. 1A) and pants shown in FIG. 14B are generated.

  On the other hand, each of the cutting panels P1 to P4 may be cut at a middle position between two adjacent main body portions C and C, as indicated by a cutting line 301 shown by a broken line in FIG. In this case, the H-type diaper (FIG. 5C) and pants of FIG. 15B are generated.

  Each of the cutting lines 300 and 301 only needs to extend in the width direction Y, and is not necessarily a straight line.

Example 3:
7 to 11 show a third embodiment.
FIGS. 7A and 7B show an example of a worn article manufactured by the manufacturing method of the third embodiment. In FIG. 7A, a diaper (an example of a worn article) 1C includes a main body C and a pair of side panels P1, P3 (P4, P2).

Manufacturing method (after lamination process):
Below, an example of the manufacturing method of the said diaper 1C of Fig.7 (a) is demonstrated.
FIG. 8A shows the laminate W. The method for generating the stacked body W is the same as that in the first embodiment, and a description thereof will be omitted. In the third embodiment, the elastic member F is provided similarly to the first embodiment, but the illustration thereof is omitted.

  As shown in FIG. 8B, the stacked body W is cut along the corrugated cutting line CL while being conveyed. The cutting line CL is formed into a waveform having a predetermined wavelength extending in the flow direction X, for example. By the cutting, the laminated body W is divided into first and second divided laminated bodies N1 and N2 having substantially the same shape and shifted in half-wave phase in the flow direction X.

  After the division, the first and second divided laminates N1 and N2 are separated from each other, for example, in the vertical direction Z (direction perpendicular to the surfaces of the divided laminates N1 and N2) in FIG. As shown in FIG. 9A, after the separation, the first divided stacked body N <b> 1 is conveyed while being moved slightly toward the center line L. Thereby, the 1st division | segmentation laminated body N1 is conveyed along the centerline L, and is conveyed symmetrically with the 2nd division | segmentation laminated body N2 shown to (b) of FIG.

First and second cutting panels P1, P2:
Thereafter, as shown in FIG. 9A, the first and second divided laminates N1 and N2 have a predetermined length along the cutting line 100 in which the tip portion of the first divided laminate N1 extends in the width direction Y. It will be severed. This cutting is repeated, and first and second cutting panels P1 and P2 that are substantially line-symmetric with each other are generated for each wavelength λ.

Here, in the laminated body W in FIG. 9A, the tension in the flow direction X is removed, the stretched elastic member contracts in the flow direction X, and a gather is formed in the contraction part H. After that, by cutting along the cutting line 100, the non-shrinkage portion E has the wide fixing portions E1, E1 wide in the width direction Y and the locking portions E2, E2 to which the tape T is fixed, respectively. Generated.
Therefore, in the first and second cutting panels P1 and P2, a gather contraction H is generated between the flat fixing part E1 and the flat locking part E2.

  After the separation, the first and second cutting panels P1, P2 are separated from each other in the flow direction X. The postures of the first and second cutting panels P1, P2 are rotated in the same direction by approximately 90 °, and the distance between the first cutting panel P1 and the second cutting panel P2 is increased in the width direction Y. The

  After the rotation, as shown in FIG. 10A, the distance between the first cutting panel P1 and the second cutting panel P2 is the length of the main body portions C1 and C2 in the flow direction X. Spaced apart. Thereafter, the fixing portions E1 of the first and second cut panels P1 and P2 are joined to sheet-like objects (hereinafter referred to as “main body sheets”) CW that become the first and second main body portions C1 and C2, respectively.

  The main body sheet CW is continuously conveyed in the flow direction X. For example, after joining third and fourth cutting panels described later, the main body sheet CW is cut along the cutting line 200 to form the main body portions C1 and C2. Is done. By this cutting, the first main body C1 and the second main body C2 are generated from the main body sheet CW. Therefore, it can be said that the main body sheet CW is alternately conveyed with a portion that becomes the first main body portion C1 and a portion that becomes the second main body portion C2.

  The 1st cutting panel P1 is joined to the 1st side CS1 of the part used as the 1st main-body part C1 of the main body sheet | seat CW. On the other hand, the 2nd cutting panel P2 is joined to the 2nd side CS2 of the part used as the 2nd main-body part C2 of the main body sheet | seat CW.

Third and fourth cutting panels P3, P4:
On the other hand, as shown in FIG. 9B, the tip end portion of the second divided laminate N2 is repeatedly separated, and the third and fourth cut panels P3 and P4 that are substantially line-symmetric with respect to each other have the one wavelength λ. Is generated.
After the separation, the third and fourth cutting panels P3 and P4 are separated from each other in the flow direction X. The third and fourth cutting panels P3 and P4 are rotated in the same direction by about 90 °, and the distance between the third cutting panel P3 and the fourth cutting panel P4 is increased in the width direction Y. The

  After the rotation, as shown in FIG. 10B, the distance between the third cutting panel P3 and the fourth cutting panel P4 is the length in the flow direction X of the main body portions C1 and C2, so that Spaced apart. Thereafter, the fixing portions E1 of the third and fourth cut panels P3 and P4 are joined to the first and second main body portions C1 and C2 of the main body sheet CW, respectively.

  Here, as shown in FIG. 10B, the first cutting panel P1 and the fourth cutting panel P4 are arranged in a line in the flow direction X of the main body sheet CW. On the other hand, the second cutting panel P2 and the third cutting panel P3 are arranged in a line in the flow direction X of the main body sheet CW. Accordingly, the third and fourth cut panels P3 and P4 are arranged at positions facing the first and second cut panels P1 and P2 with the center line L interposed therebetween, respectively.

  The 3rd cutting panel P3 is joined to the 2nd side CS2 of the part used as the 1st main-body part C1 of the main body sheet | seat CW. On the other hand, the fourth cut panel P4 is joined to the first side CS1 of the portion that becomes the second main body C2 of the main body sheet CW.

Thereafter, the main body sheet CW is cut into a predetermined shape, and the diaper 1C shown in FIG. 7A is manufactured. Accordingly, the diaper 1C in which the first cutting panel P1 and the third cutting panel P3 are joined to the first main body C1, and the second cutting panel P2 and the fourth cutting panel P4 are joined to the second main body C2. Diapers 1C are manufactured alternately.
In addition, you may join the side panels P1-P4 to main-body part C1, C2 so that the diaper of Fig.7 (a) may become the underpants of FIG.7 (b).

Manufacturing equipment:
Below, the manufacturing apparatus of this diaper 1C is demonstrated.
As shown in FIG. 11, the laminated body W produced | generated by the method and apparatus demonstrated in the above-mentioned Example 1 is introduce | transduced into the slitter 20, and the 1st and 2nd division | segmentation laminated body (1st and 2nd division | segmentation sheet | seat) is shown. Example) N1 and N2 are generated.

  After the slit, the first divided laminated body N1 is conveyed by the web guide 19 while being slightly moved in the width direction toward the center line L (FIG. 9A), and is introduced into the first re-pitch cutter 31. On the other hand, the second divided laminate N2 is conveyed above the first divided laminate N1 and introduced into the second re-pitch cutter 32. The first re-pitch cutter 31 and the second re-pitch cutter 32 can use the same device as the above-described re-pitch cutter 30 and will not be described in detail.

  The first split laminated body N1 is cut by the first re-pitch cutter 31 along the cutting line 100 (FIG. 9A) at the tip portion by the cutter 30b. The cutting panels P1 and P2 generated by the cutting are slightly separated in the flow direction X from the first divided laminated body N1 before cutting.

First widening re-pitch rotation device 41:
The cutting panels P1, P2 generated by the cutting are conveyed to the downstream widening re-pitch rotation device 41.
As shown in FIG. 9A, the first widening re-pitch rotation device 41 is a device for separating the first and second cutting panels P1, P2 from each other and rotating them by 90 °. The first widening re-pitch rotation device 41 includes a plurality of pads spaced from each other. When the pad receives the cutting panels P1 and P2 from the first re-pitch cutter 31 at the receiving position RP4, the pad sucks and holds the cutting panels P1 and P2. At the delivery position SP4, the pad receives the cutting panel at the downstream first re-pitch device 71. Pass P1 and P2.

  Here, as for the pads of the first widening re-pitch rotation device 41 in FIG. 11, the spacing between adjacent pads increases (re-pitch) while rotating from the receiving position RP4 to the transfer position SP4, so that the space between the cutting panels P1 and P2 is increased. The interval in the flow direction X is further increased. At the same time, the pad rotates about 90 ° in the same direction and moves largely in the width direction Y, and the first cutting panel P1 and the second cutting panel P2 are rotated and widened ((a in FIG. 9). )).

After the re-pitch, rotation, and widening, the first cut panels P1 and P1 are further re-pitched in the downstream first re-pitch device 71 to widen the interval, which is twice the product length Lc in FIG. Arranged at a corresponding pitch, the position of application to the main body sheet CW is adjusted, and an adhesive is applied by the coating device G7 and joined to a predetermined position of the main body sheet CW (FIG. 10A). Similarly, the interval between the second cut panels P2 is also widened to a pitch corresponding to twice the product length Lc.
As the re-pitch device 71, for example, a re-pitch device having a plurality of pads can be used.

  Similarly to the first divided laminate N1, the second divided laminate N2 is cut and re-pitched as shown in FIG. 9B by the second re-pitch cutter 32, the second widened re-pitch rotating device 42, and the second re-pitch device 72. Then, rotation and widening are performed, and the main body sheet CW is joined to a predetermined position as shown in FIG. The second re-pitch cutter 32, the second widening re-pitch rotation device 42, and the second re-pitch device 72 have the same functions as the first re-pitch cutter 31, the first widening re-pitch rotation device 41, and the first re-pitch device 71. Generation and joining of the third and fourth cut panels P3 and P4 are performed.

  In this way, the cutting panels P1 to P4 are arranged at predetermined positions of the main body sheet CW by the first and second re-pitch devices 71 and 72 to form side panels, and the diaper 1C shown in FIG. 7A is created.

  Note that, as in the diapers 1C shown in FIGS. 7C and 7E, the cutting panels may be joined to the left and right of the main body portions C1 and C2 so as to have a substantially “H” shape. Good.

For example, in the case of FIG. 7 (c), the side panels P1a, P1b to P4a, and P4b are generated by cutting and dividing the cutting panels P1 to P4 together with the main body sheet CW in the cutting step. Good.
As shown in FIG.7 (d), the said another diaper 1C is assembled in a pants type | mold by mutually joining edge part E3 of a side panel.

Moreover, as shown in FIG.7 (e), you may produce and join the other side panels P5-P8 separately from the side panels P1-P4. In addition, you may join the tape T to the side panels P1-P4.
As shown in FIG. 7F, this another diaper 1C may be assembled by engaging the tape T with the main body C1 (C2).

12 (a), 12 (b) and FIG. 13 show another manufacturing apparatus and another laminated body of another laminated body.
In FIG. 13, a plurality of elastic members F are arranged substantially parallel to each other along the flow direction X of the laminated body W, as indicated by broken lines, on both sides of the laminated body W. As the elastic member F, a thread-like resin made of thread rubber or hot melt resin may be used. As the sheet-like materials W1 and W2 constituting the laminate W, for example, a nonwoven fabric or a film of a thermoplastic resin is employed.

  Non-shrinkage portions (first and second portions) E are provided over the entire width in the width direction Y on the upstream side and the downstream side in the flow direction X of the shrinkage portion (third portion) H. The non-shrinkage portion E becomes the aforementioned end portions E1 and E2. The non-shrinkable portion E is formed by bonding the two sheet-like objects W1 and W2 of FIG. In addition, as an adhesive agent, the hot melt resin was apply | coated to the film form from the applicator HM, for example to one sheet-like object W1. In addition, in order to clarify the part which provided the film-form adhesive of hot-melt resin, the said part is shaded in FIG.

  In the contraction portion H, the stretched elastic member F is sandwiched between the slack portions H1 and H2 of the two sheet-like objects W1 and W2 in FIG. The elastic member F in FIG. 13 is held in an expanded state by two sheet-like objects W1 and W2 bonded by hot melt resin at the non-shrinkage portions E and E on both sides of the shrinkage portion H.

  In the contracted portion H of FIG. 13, as indicated by the round dots 60, the sheet-like objects W <b> 1 and W <b> 2 (FIG. 12A) between the elastic members F and F that are close to each other are in a large number of welded portions 60. They are welded together. This welding is performed by the sealing device 17 in FIG.

That is, a sealing device 17 including an ultrasonic welder 15 and an anvil roller 16 shown in FIG. The sealing device 17 applies ultrasonic vibration to the laminated body W to heat-bond a predetermined sealing portion.
Each of the ultrasonic welders 15 includes ultrasonic generation means (not shown) and a horn 15a. When each anvil 16a of the anvil roller 16 approaches the horn 15a, the ultrasonic welder 15 applies energy from the ultrasonic vibration to the seal symmetrical portion of the laminated body W from the horn 15a and heats it to heat a predetermined seal portion. Weld.

  On the surface of the anvil 16a of FIG. 12B, a large number of small convex portions 16b are provided in the same arrangement as the large number of welded portions 60 of the contraction portion H of FIG. That is, the convex portions 16b in FIG. 12B are provided in a matrix (vertical and horizontal) in the width direction Y and the circumferential direction of the anvil roller 16 in FIG. Accordingly, the horn 15a can partially weld the two sheet-like objects W1, W2 with a dot pattern between the horn 15a.

  In addition, this partial welding may be made in a stripe shape parallel to the elastic member F in FIG. 12B shows the horn 15a and the laminated body W separated from each other for easy understanding of the structure and the like of the laminated body W. However, the horn 15a and the anvil are arranged so as to sandwich the laminated body W. It is close to 16a.

Next, a method for manufacturing the laminate W will be described.
In the lamination method of the laminate W, a hot melt resin film is applied to the first sheet W1 of FIG. 12A at a predetermined pitch in the flow direction X only in the non-shrinkage portion E of FIG. This is the same as the example of FIG.

  That is, a plurality of elastic members F are introduced in parallel between the first sheet-like object W1 and the second sheet-like object W2. The first sheet-like material W1 and the second sheet-like material W2 are applied so that the introduced elastic member F is sandwiched between the first sheet-like material W1 and the second sheet-like material W2. The laminated body W is formed by being bonded to each other only at the non-shrinkage portion E with a hot-melt adhesive applied from the machine HM.

  Thereafter, between the plurality of elastic members F in the contraction part H, the first sheet-like object W1 and the second sheet-like object W2 are thermally welded to each other by the ultrasonic welder 15. Since the anvil roller 16 is provided with a large number of convex portions 16b, the first sheet-like material W1 and the second sheet-like material W2 sandwich the elastic members F during the welding. Are not heat welded together.

  In this way, with respect to the contraction portion H in FIG. 13, only the sheet-like objects W1 and W2 between the elastic members F and F that are close to each other are thermally welded, so the elastic member F in FIG. Since the sheet passes through the hollow portion 61 between the articles W1 and W2 and is not attached to the sheet articles W1 and W2, the laminate W can be obtained without causing any creaking due to shrinkage in the laminate W.

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by looking at the present specification.
For example, the number of sheet-like materials that form the laminate W may be three or more.
The shape for slitting the laminated body W is not limited to the shape illustrated in the above embodiment.
After the longitudinal flow main body is cut in advance, the side panels may be joined.
Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.

  INDUSTRIAL APPLICABILITY The present invention can be used for disposable wearing articles such as sanitary products, disposable pants, and diapers, and the production thereof.

It is a schematic plan view which shows the example of the substantially T type diaper and pants manufactured by this invention. It is a schematic plan view which shows an example of the manufacturing method by the lateral flow of the diaper. It is a schematic block diagram which shows an example of the manufacturing apparatus of a laminated body. It is a schematic side surface layout figure which shows an example of the manufacturing equipment of a diaper. It is a schematic plan view which shows the example of a substantially H type diaper and pants. It is a schematic plan view which shows an example of the manufacturing method by the lateral flow of the diaper. It is a schematic plan view which shows the example of a substantially T type and a substantially H type diaper and pants. It is a schematic plan view which shows the process of the slit of a laminated body. It is a schematic plan view which shows the manufacturing method and rotation and moving position of a cutting panel. It is a schematic plan view which shows the joining position of the same cutting panel and a main-body part. It is a schematic side surface layout figure which shows the manufacturing equipment in the case of the same vertical flow. FIG. 12A is a schematic configuration diagram showing an example of another manufacturing apparatus of a laminate, and FIG. 12B is a conceptual diagram of an anvil and a horn for showing a welding portion by ultrasonic waves. It is a top view which shows an example of a laminated body. It is a schematic plan view which shows an example of another manufacturing method. Furthermore, it is a schematic plan view which shows an example of another manufacturing method.

Explanation of symbols

1A, 1B, 1C: Diapers (an example of worn articles)
11: 1st rotating device 12: 2nd rotating device C, C1, C2: Main body portion CB: Back portion CF: Front portion CL: Waveform cutting line F: Elastic member H1: First slack portion H2: Second slack portion N1: 1st division laminated body (1st division sheet)
N2: Second divided laminate (second divided sheet)
NP: nip position P1: first cutting panel P2: second cutting panel P3: third cutting panel P4: fourth cutting panel P1-P4: side panel RP1: first receiving position RP2: second receiving position S1: first Pad S2: Second pad SP: Delivery position X: Flow direction X1: First flow direction X2: Second flow direction Y: Width direction W: Laminate W1, W2: Sheet

Claims (13)

A method for manufacturing a worn article in which an elastic member is sandwiched between two sheet-like objects,
Forming a first slack portion by loosening a part of the first sheet material in the first flow direction while conveying the first sheet material continuous in the first flow direction;
Forming a second slack portion by loosening a part of the second sheet-like material in the second flow direction while conveying the second sheet-like material continuous in the second flow direction;
Introducing a stretchable elastic member between the first sheet-like material and the second sheet-like material;
The first slack portion and the second slack portion coincide with each other, and the introduced elastic member is sandwiched between the first sheet-like material and the second sheet-like material. A step of laminating one sheet-like material and the second sheet-like material to form a laminate;
And a step of forming a gathered portion by pulling a portion sandwiched between the slack portions of the elastic member and removing slack of the first and second slack portions. An apparatus for manufacturing a worn article in which an elastic member is sandwiched between two sheets,
A first rotating device having a plurality of first pads spaced apart from each other and conveying the first sheet-like material while holding the first sheet-like material by each first pad;
A second rotating device that has a plurality of second pads spaced apart from each other and conveys the second sheet-like material while holding the second sheet-like material with each second pad;
The first rotating device and the second rotating device are arranged close to each other, and an elastic member supplied to the adjacent nip position is sandwiched between the first sheet-like material and the second sheet-like material,
Here, the peripheral speed of each first pad of the first rotating device changes individually for each first pad,
Each second pad of the second rotating device has a different peripheral speed for each second pad,
The pads of the first and second rotating devices respectively receive the first and second sheet-like materials at first and second receiving positions upstream from the nip position, and after this reception, to the nip position While rotating, the interval between adjacent pads is reduced, forming a slack portion in the first and second sheet-like materials,
In the nip position, between the first sheet-like material and the second sheet-like material on the pad, the elastic member is introduced for each pad and sandwiched and laminated,
While each pad of the first or second rotating device rotates from the nip position to a delivery position downstream of the nip position, the spacing between adjacent pads increases.
A wearable article manufacturing apparatus in which the slack of the slack portion is removed and the elastic member of the slack portion is pulled while each pad rotates from the nip position to the delivery position. In the manufacturing method of the wearing article in which the side panels are joined to the left and right of the main body provided with the front part covering the wearer's belly side and the back part covering the wearer's back side,
While conveying the continuous sheet-like material, the sheet-like material is cut along a corrugated cutting line having a predetermined wavelength extending in the flow direction of the sheet-like material to form first and second divided sheets. Process,
Cutting the first divided sheet at a predetermined interval in the flow direction to generate first and second cut panels for each wavelength;
Cutting the second divided sheet at a predetermined interval in the flow direction to generate third and fourth cut panels for each wavelength;
Separating the generated first cutting panel and second cutting panel from each other in the flow direction;
Separating the generated third cutting panel and fourth cutting panel from each other in the flow direction;
Separating the first cut panel and the third cut panel from each other in a width direction substantially perpendicular to the flow direction;
Separating the second cut panel and the fourth cut panel from each other in the width direction;
Another sheet-like material serving as the main body having the front portion or the back portion at both ends in the width direction is between the first cutting panel and the second cutting panel, and the third cutting panel and the second cutting panel. Arranging one after another between the four cut panels;
Joining the four cutting panels to another sheet-like material serving as the main body;
Forming the side panel by cutting the joined cut panels along a cutting line extending in the width direction. In the method for manufacturing a worn article in which a pair of side panels are joined to the left and right of a main body portion provided with a front portion covering the abdomen side of the wearer and a back portion covering the back side of the wearer,
While transporting a continuous sheet-like material, the sheet-like material is cut along a corrugated cutting line having a predetermined wavelength extending in the flow direction of the sheet-like material, so that the half-wave phases are shifted from each other in the flow direction. Forming first and second divided sheets having substantially the same shape;
Cutting the first divided sheet at a predetermined interval in the flow direction to generate first and second cut panels that are substantially line symmetrical with each other for each wavelength;
Cutting the second divided sheet at a predetermined interval in the flow direction to generate third and fourth cut panels that are substantially line-symmetric with each other for each wavelength;
Separating the generated first cutting panel and second cutting panel from each other in the flow direction;
Separating the generated third cutting panel and fourth cutting panel from each other in the flow direction;
Bonding the first and second cutting panels to the left and right of the main body having the front portion or the back portion at both ends in the width direction substantially orthogonal to the flow direction;
Joining the third and fourth cutting panels to the left and right of the main body part different from the main body part having the front part or the back part at both ends in the width direction substantially orthogonal to the flow direction;
The manufacturing method of the wearing article provided with.   5. The wearing article according to claim 4, further comprising a step of separating the first and second cut panels and the third and fourth cut panels in the width direction before the step of joining the panels. Manufacturing method. In the method for manufacturing a worn article in which a pair of side panels are joined to the left and right of a main body portion provided with a front portion covering the abdomen side of the wearer and a back portion covering the back side of the wearer,
While conveying the continuous sheet-like material, the sheet-like material is cut along a corrugated cutting line having a predetermined wavelength extending in the flow direction of the sheet-like material to form first and second divided sheets. Process,
Cutting the first divided sheet at a predetermined interval in the flow direction to generate first and second cut panels for each wavelength;
Cutting the second divided sheet at a predetermined interval in the flow direction to generate third and fourth cut panels for each wavelength;
Separating the first and second cutting panels and the third and fourth cutting panels;
Separating the generated first cutting panel and second cutting panel from each other in the flow direction;
Separating the generated third cutting panel and fourth cutting panel from each other in the flow direction;
Joining the first and second cutting panels to the left and right of the front part or the back part of the main body having the front part or the back part at both ends in the width direction substantially perpendicular to the flow direction;
The third and the left and right sides of the front part or the back part of the main body part to which the first and second cutting panels of the main body part having the front part or the back part at both ends in the width direction substantially orthogonal to the flow direction are not joined. Joining the fourth cutting panel;
The manufacturing method of the wearing article provided with. In the method for manufacturing a worn article in which a pair of side panels are joined to the left and right of the main body,
While conveying the continuous sheet-like material, the sheet-like material is cut along a corrugated cutting line having a predetermined wavelength extending in the flow direction of the sheet-like material to form first and second divided sheets. Process,
Repetitively cutting off the leading end portion of the first divided sheet to generate both first and second cut panels that are substantially line-symmetric with respect to each wavelength;
Repetitively cutting off the leading end portion of the second divided sheet to generate both the third and fourth cut panels that are substantially line symmetrical with each other for each wavelength; and
Separating the generated first cutting panel and second cutting panel in the flow direction;
Separating the generated third cutting panel and fourth cutting panel in the flow direction;
Changing the posture of the first and second cutting panels to a posture rotated by approximately 90 ° with respect to the flow direction;
Increasing the distance between the first cutting panel and the second cutting panel in the width direction of the sheet material substantially orthogonal to the flow direction;
Changing the posture of the third and fourth cutting panels to a posture rotated by approximately 90 ° with respect to the flow direction;
Increasing the distance between the third cutting panel and the fourth cutting panel in the width direction;
Joining the first cutting panel to a predetermined first side on either the left or right side of the first main body portion of the sheet-like material serving as the main body portion;
Joining the second cutting panel to a predetermined second side of the second body part downstream of the first body part of the sheet-like material serving as the body part;
Bonding the third cutting panel to the predetermined second side on either the left or right side of the first main body portion of the sheet-like material serving as the main body portion;
Joining the fourth cutting panel to the predetermined first side on either the left or right side of the second main body portion of the sheet-like material serving as the main body portion;
The manufacturing method of the wearing article provided with. In any one of Claims 3 thru | or 7, The said side panel has a gather which can be expanded-contracted in a wearer's waist direction,
A step in which an elastic member for forming the gathers is joined to the sheet-like material along the flow direction of the sheet-like material;
Shrinking the elastic member of the portion to be gathered in the flow direction after the formation of the first and second divided sheets and before the formation of the cutting panel;
A method for producing a worn article, further comprising:   The distance between the first cutting panel and the second cutting panel is the length in the flow direction of the main body, and between the third cutting panel and the fourth panel. The manufacturing method of the wearing article which performs the said each process to separate so that the distance may become the length of the flow direction of the said main-body part.   In Claim 7, While arranging the 1st cutting panel and the 4th cutting panel in a line in the flow direction of the sheet-like material used as the main part, the 2nd cutting panel and the 3rd cutting panel are the main part. The manufacturing method of the wearing article further provided with the process of arranging in a line in the flow direction of a sheet-like material which becomes.   In Claim 7, In the process of forming the first and second divided sheets, the phases of the first divided sheet and the second divided sheet are shifted from each other by a half wavelength in the flow direction, and the two divided sheets are formed. Article manufacturing method. A wearing article having a laminate in which a plurality of elastic members are arranged close to each other between a first sheet-like material and a second sheet-like material,
The first sheet-like material and the second sheet-like material are thermally welded to each other between the plurality of elastic members,
A worn article in which the first sheet-like material and the second sheet-like material are not thermally welded to each other with respect to a portion sandwiching the elastic members. A method for producing the worn article of claim 12, comprising:
Introducing a plurality of elastic members between the first sheet-like material and the second sheet-like material along the flow direction of the two sheet-like materials and in parallel with each other;
The introduced elastic member is sandwiched between the first sheet-like material and the second sheet-like material, and between the first portion and the second portion separated from each other in the flow direction. The first sheet-like material and the second sheet-like material are bonded to each other in the first portion while preventing the first sheet-like material and the second sheet-like material from being bonded to each other in the third portion. Forming a laminate in which the first sheet and the second sheet are bonded to each other with an adhesive in the second portion; and
The first sheet-like material and the second sheet-like material are attached to the third sheet-like material while the first sheet-like material and the second sheet-like material are not thermally welded to each other with respect to the portion sandwiching each elastic member. A method for manufacturing a worn article, comprising the step of heat-welding each other in the part.

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