MX2011000595A

MX2011000595A - Method of manufacturing wearing article and wearing article.

Info

Publication number: MX2011000595A
Application number: MX2011000595A
Authority: MX
Inventors: Yasuhiko Kenmochi; Akiyoshi Kinoshita; Natsuko Aoyagi; Kayoko Tanaka; Kazuo Ukegawa; Ryota Myojo
Original assignee: Uni Charm Corp
Priority date: 2008-07-15
Filing date: 2009-07-15
Publication date: 2011-04-04
Also published as: MX337412B; MA32559B1; UA102552C2; CL2011000088A1; WO2010008032A1

Abstract

A method of manufacturing a wearing article capable of preventing loop elements engaged with hook elements from being curled up in a production step. Support members (13, 14) are attached to inner surface sheets (6) at the first side edges (11) of a front waist region (8), respectively.Â The hook elements (15, 16) are attached to a chassis (2) with the support members (13, 14) interposed therebetween, respectively.Â The loop elements (17, 18) are attached to the inner surface sheets (6) at the second side edges (12) of a rear waist region (9), respectively.Â Seal parts (32, 33) are so formed on the third regions (30, 31) of the support members (13, 14) as to correspond to the outer edges of the loop members (17, 18), respectively.Â The seal parts (32, 33) formed on the support members (13, 14) and the loop elements (17, 18) are temporarily affixed by engaging the hook elements (15, 16) with the loop elements (17, 18), respectively.

Description

METHOD OF DEVELOPING AN ARTICLE OF USE AND THIS ARTICLE OF USE TECHNICAL FIELD The present invention relates to a method for the manufacture of articles for use and this article of use, more particularly to articles of use such as disposable diapers, trainers, incontinence briefs, sanitary napkins or diaper covers and a method for the elaboration of them.

RELATED TECHNIQUE Conventionally, disposable diapers are known which have front and rear waist regions removably fastened along their respective side zones, for example, from the description of Patent Document 1. In accordance with this Patent Document 1, the diaper comprises a chassis having front and rear waist regions, a crotch region, a side facing the skin of the wearer and a side facing the wearer's garment, and hook and eye elements respectively formed in the the frontal and posterior waist regions along their lateral zones. The hook elements are fixed to the side areas by means of mounting members. Said diaper is made of a network assembly in which each pair of adjacent diapers having side zones are contiguous to each other fed into a machine direction in the process to make them.

On the other hand, in the course of making the diaper, each of the mounting members is folded in a Z-shape or in the form of an inverted Z so that a fixed end defined by one of its side areas extending in a Longitudinal direction can be fixed to an associated lateral zone of the chassis and a free end defined by the other of its lateral areas can extend outwards in a transverse direction.

[PATENT DOCUMENT 1] JP 2008-12115 A BRIEF DESCRIPTION OF THE INVENTION Problem to solve through the invention In the process of making the diaper, the hook elements and eyelet elements are fed in the form of a mutually coupled assembly. To ensure a desired engagement even if the hook elements and eyelet elements move more or less from the proper relative position, one of the areas occupied by the hook elements and the eyelet elements is sized to be larger than the other . The hook elements have greater rigidity than the eyelet elements and therefore the area occupied by the eyelet elements is preferably sized to be larger than the area occupied by the elements. of the hook from the point of view of the desirable flexibility of the diaper and undesirable irritation on the wearer's skin. However, the sizing of the area occupied by the eyelet elements to be relatively large necessitates a surplus zone of the eyelet elements that extend outwardly beyond the area of the hook elements and are free of engagement with the hook elements. . Said surplus free area of engagement with the hook elements can sometimes be raised or rolled up in the course of diaper processing and cause the hook elements to disengage from the eyelet elements and / or may impair the productivity of the diaper.

In view of the problem as described above, an object of the first aspect of the present invention is to provide a method for making an improved wearing article such that the eyelet elements coupled with the related hook elements do not raise or roll up. in the course of the production process.

Measure to solve the problem As illustrated in FIG. 15A, a mounting member 101 is temporarily joined by related adhesion points 102 in a bent state to prevent the bent mounting member 101 from unfolding at an inconvenient time. These attachment points 102 are formed between two adjacent layers of the bent mounting member 101 within the free end 101a of the mounting member 101 to further restrict the bent mounting member 101 from unfolding at an inconvenient time. The mounting member 101 temporarily attached in this way, is provided with the hook elements 103 attached thereto and the eyelet elements 104 are in engagement with these hook elements 103. To release the mounting member 101 from the temporary fixing effect of the attachment points 102, the chassis 105 can open to separate the front and back waist regions one from the other. However, as will be evident from Figure 15B, the attachment points 102 are apt to follow the chassis 105 together with the mounting member 101 and sometimes it may be impossible to free the mounting member 101 from the temporary fixing effect of the points. of adhesion 102. If the chassis 105 is further opened to release the mounting member 101 from the temporary fixing effect of the bonding points 102, the hook elements can be decoupled from the eyelet elements before the mounting member 101 freeing from the temporary fixing effect of the adhesion points 102. To avoid such a situation in which the adhesion points 102 follow the movement of the chassis 105 together with the mounting member 101, the free end 101a of the mounting member 101 must be maintained with the fingers of the user or caretaker, while the chassis 105 opens. Accordingly, sensibly annoying handling is required to free the mounting member 101 from the temporary fixing effect of the bonding points 102.

In view of the problem as described above, a main objective of the second, third and fourth aspects of the present invention is to provide methods for the preparation of an article of use and this article of improved use to facilitate assembly members temporarily attached by the provisions of the points of adhesion in their doubled states of unfolding when desired.

The present invention includes first, second, third and fourth aspects.

According to the first aspect of the present invention, a method for manufacturing an article of use comprises a chassis and a fastener assembly, the chassis having a longitudinal direction, a transverse direction, a side facing the skin of the user and one side facing the user's garment, a first waist region corresponding to one of the front and back waist regions, a second waist region corresponding to the other of the front and back waist regions and a crotch region extending between the first and second waist regions and the fastener assembly including the first fastening regions provided along a pair of first side regions of the first waist region opposite each other in the direction transverse and extending in the longitudinal direction and the second securing regions provided along a pair of second zones later ales of the second waist region opposite each other in the transverse direction and extending in the longitudinal direction where the first fastening regions are detachably coupled with the second fastening regions and wherein the first regions of fastening include hook elements and the second fastening regions include eyelet elements.

The first aspect of the present invention further comprises the steps of forming the first fastening regions with adhesion zones adapted to temporarily attach to the second fastening regions, and coupling the hook elements of the first fastening regions with the eyelet elements. of the second clamping regions and at the same time temporarily joining the first clamping regions with the second clamping regions by means of the adhesion zones.

According to one embodiment, a process for producing the article of use includes a machine direction and a perpendicular direction orthogonal to the machine direction and, in the course of continuous development of the chassis, the transverse direction of the chassis corresponds to the machine direction and the method for making the article of use also includes the steps of feeding a network assembly that forms the chassis in the machine direction and cutting the network assembly in the perpendicular direction after the first holding regions have been coupled with the second holding regions.

According to another embodiment, each of the second fastening regions includes the inner and outer side edges extending in the longitudinal direction and upper and lower ends extending in the transverse direction and the adhesion zones are formed to be oriented towards the corners defined by the outer lateral edge and upper and lower ends of the second holding regions in engagement with the first holding regions.

According to even another embodiment, the first fastening regions include mounting members that extend outwardly beyond the first side zones by means of which the hook elements are joined to the first side zones.

According to yet another embodiment, the adhesion zones temporarily attach the mounting members to the eyelet elements.

According to another additional embodiment, the eyelet elements occupy an area larger than the area occupied by the hook elements and the eyelet elements exposed outside the hook elements are temporarily attached to the mounting members by means of the zones of adhesion.

According to the invention in the second and third aspects thereof, a method for manufacturing an article of use comprises a chassis and mechanical fasteners, the chassis has a longitudinal direction, a transverse direction, a side facing the user's skin and one side facing the user's garment, a first waist region corresponding to one of the front and back waist regions, a second waist region corresponding to the other of the front waist regions and back and a crotch region extending between the first and second waist regions and the mechanical fasteners include first fastening members provided along a pair of first zones laterals of the first waist region opposite each other in the transverse direction to extend in the longitudinal direction and the second fastening members provided along a pair of second lateral zones of the second waist region opposed to each other in the transverse direction to extend in the longitudinal direction where the first clamping members engage removably with the second clamping members and wherein the first clamping members are formed along the first lateral zones by means of the mounting members.

According to the present invention the second aspect thereof further comprises the steps of bending back each of the mounting members along a first fold line extending in the longitudinal direction to define a first region and a second region, subsequently along a second fold line that also extends in the longitudinal direction to define the second region and a third region so that the second region overlaps the first region while the third region overlaps the second region. second region, forming an arrangement of adhesive spots between the second region and the third region to temporarily fix the second region to the third region, joining the third region with the first related fastening member, coupling the first fastening member with the second member of related subject, join the first region with the first related lateral zone, and join the second The clamping method with the second related lateral zone, wherein the arrangement of the adhesive points is formed to overlap the first related clamping member.

In accordance with the present invention the third aspect thereof further comprises the steps of bending back each of the mounting members along a first fold line extending in the longitudinal direction to define a first region and a second region, subsequently along a second fold line that also extends in the longitudinal direction to define the second region and a third region so that the second region overlaps in the first region while the third region overlaps the second region, forming a disposition of adhesive points between the second region and the third region to temporarily fix the second region to the third region, joining the third region with the first related clamping member coupled with the second clamping member, joining the first region region with the first related lateral zone, and joining the second holding member with the second side region l related, wherein the arrangement of the adhesive points is formed to overlap the first related fastening member.

According to the embodiments of the present invention in the second and third aspects thereof, a process for the preparation of the article of use has a machine direction and a perpendicular direction orthogonal to the machine direction and the article chassis. of use is formed continuously so that the cross direction of the chassis corresponds to the direction of the machine, wherein the method further includes the steps of feeding a network forming the chassis in the machine direction and cutting the chassis in the perpendicular direction after the first clamping member has engaged with the second related clamping members. , wherein the first side zones are formed along one end of the net extending in the machine direction and the second side areas are formed along the opposite end. According to another preferred embodiment of the present invention in the first and second aspects thereof, the respective pairs of the mounting members of the articles of use continuously formed in the machine direction are contiguous with each other in the respective third regions. and they are cut in these third contiguous regions in the perpendicular direction.

According to the present invention in the room thereof, the article of use comprises a chassis and mechanical fasteners, the chassis has a longitudinal direction, a transverse direction, a side facing the skin of the user and a side that is orients towards the user's garment, a first waist region corresponding to one of the front and back waist regions, a second waist region corresponding to the other of the front and back waist regions and a crotch region that is extends between the first and second waist regions and the mechanical fasteners include first fastening members provided along a pair of first side regions of the first belt region opposed to each other in the transverse direction to extend in the longitudinal direction and second clamping members provided along a pair of second lateral zones of the second waist region op lying together in the transverse direction to extend in the longitudinal direction where the first clamping members engage removably with the second clamping members and where the first clamping members are formed along the first lateral zones by middle of the assembly members.

The present invention in the fourth aspect thereof, each of the mounting members comprises a first fold line, a second fold line, a first region and a second region defined by the first fold line and the second fold line. fold and a third region defined together with the second regions by the second fold line wherein the second region overlaps in the first region and the third region overlaps in the second region, the third region is joined to the first related fastening member , the first region is joined to the first related lateral zone, and an arrangement of adhesive spots is formed between the second region and the third region to temporarily fix the second region to the third region, wherein the arrangement of adhesive spots is formed with in order to overlap in the first related clamping member.

According to one embodiment of the present invention in the fourth aspect thereof, the arrangement of adhesive dots is formed to overlap in a region where the first fastening member engages with the second related fastening member. According to another embodiment of the present invention in the fourth aspect thereof, the arrangement of adhesive spots is formed at least along a transversely inner end of the region wherein the first fastening member engages with the second member of related subject. According to even another preferred embodiment of the present invention in the fourth aspect thereof, the arrangement of adhesive spots intermittently forms substantially over a total length of the mounting member in the longitudinal direction. According to even another preferred embodiment of the present invention in the fourth aspect thereof, a plurality of adhesive dot arrangements are formed to separate from one another in the transverse direction. According to another preferred embodiment of the present invention in the fourth aspect thereof, a plurality of adhesive dot arrangements are arranged so that the respective pairs of individual adhesive spots in the plurality of arrangements are adjacent in the transverse direction never overlapping each other.

Effect of the invention According to the present invention in the first aspect thereof, the temporary connection between the first fastening region and the second fastening region that is achieved by the adhesion zones is effective to prevent the eyelet elements in the second region of clamping are raised or rolled up from the first clamping region in the course of diapering. In consecuense, precision and productivity can be improved for the production of articles of use. In addition, the effect of said tempo union by means of the adhesion zones can be maintained during the course of the placement of the diaper on the wearer's body to restrict undesirable elevations or curls of the eyelet elements during the placement of the diaper on the body of the diaper. user. Consequently, the eyelet elements or the hook elements do not come into direct contact with the user's skin, due to said elevations or rolling and do not cause skin problems.

The network assembly can be continuously fed and worked in the machine direction and cut in the perpendicular direction after the first clamping region and the second clamping region have been coupled. Said method effectively supports the mass production of the article of use.

The adhesion zones are formed to orientate at least the corners of the outer side edge and the upper and lower ends of the second holding regions in engagement with the first holding regions. The grip areas formed to orient these corners in which the second grip region is more apt to separate from the first grip region are extremely effective in restricting the lifting and winding of the second grip region.

The first fastening region includes the mounting member that is large enough to extend outwardly beyond the first related side zones. In this manner, the mounting member can be prepared separately from the first related side area and appropriately selected according to its particular purpose.

The adhesion zones only serve to temporarily join between the mounting members and the eyelet elements and can therefore temporarily join the first fastening region to the second fastening region without affecting the coupling between the hook elements and the elements. of buttonhole.

The eyelet elements occupy an area larger than the area occupied by the hook elements and the eyelet elements exposed outside the hook elements are temporarily attached to the mounting members by means of the adhesion zones. In this way, the eyelet elements that are not in engagement with the hook elements can temporarily be attached to the first fastening region to restrict the lifting and rolling of the eyelet elements in the course of making the article of use.

According to the present invention in the second, third and fourth aspects thereof, the arrangement of adhesive spots formed between the second region and the third region of the bent mounting member serves to prevent the bent mounting member from being unfolded in a Inopportune moment during the development of the article of use and thus restrict the appearance of any problem. The mounting member is provided to overlap the first related clamping member, thus facilitating the temporary clamping effect to be removed without the possibility that the mounting member can follow the movement of the chassis. Further, according to the invention in the second aspect thereof, the second clamping member is attached to the second related lateral zone of the chassis after the first clamping member has engaged with the second related clamping member. In this way, no special alignment operation is necessary for the coupling between the first and second clamping members and a production cost can be reduced accordingly.

The articles of use can be formed continuously in the machine direction and the articles of use continuously formed in the shape of the network can be cut successively in the perpendicular direction after the first clamping member has been coupled with the second clamping member related. This process supports well the articles of use that are produced in large quantities.

In each of the articles of use continuously formed in the machine direction, each pair of adjacent mounting members is cut into the third contiguous regions in the perpendicular direction. In this way, the mounting member and the chassis can be cut instantly and therefore the production cost can be reduced proportionally.

The arrangement of the adhesive points is formed in order to overlap the region where the first clamping member engages with the second related clamping member without extending outward beyond the engagement region both in the longitudinal direction and in the direction cross. In consecuense, one surface of this arrangement of adhesive points is pulled by the first clamping member, while the other surface is pulled by the second clamping member when trying to eliminate the temporary fixing effect of the arrangement of the adhesive points. In this way, it is also possible to reliably restrict the mounting member to follow the movement of the chassis.

By forming the arrangement of the adhesive points adjacent to the laterally transverse inner edge of the region in which the first clamping member engages with the second related clamping member, the portion most apt to be detached in the course of production can be fixed temporarily.

By intermittently forming the arrangement of adhesive spots substantially over the entire length of the mounting member in the longitudinal direction, the rigidity of the frame can be increased unacceptably due to the formation of the sticking point arrangement and the stiffness should not create a feeling of upset against the user.

A plurality of dispositions of adhesive spots spaced in the transverse direction from one another allows the mounting member to be temporarily fixed on a larger scale and in a more trustworthy. Furthermore, even if any arrangement of the adhesive points is broken unintentionally, the remaining arrangement can maintain the desired function.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a diaper.

Figure 2 is a plan view showing the diaper of figure 1 as it was developed horizontally.

Figure 3 is a schematic diagram illustrating a process for making the diaper.

Figure 4 is a schematic diagram partially illustrating the process for making the diaper.

Figure 5 is a schematic diagram illustrating the areas of adhesion.

Figure 6 is a perspective view of the diaper.

Figure 7 is a plan view showing the diaper of Figure 6 as it was developed horizontally.

Figure 8 is a perspective view showing the diaper before being used in a practical way.

Figure 9A shows a partially cut-away sectional view taken along line IX-IX in Figure 8 and Figure 9B shows a corresponding sectional view after breaking the first ones provisions of the points of accession.

Figure 10 is a diagram schematically illustrating a process for making the diaper.

Figure 11 is a diagram schematically illustrating the process for making the diaper.

Figure 12 is a diagram illustrating the first arrangements of the adhesion points.

Figure 13 is a view similar to that of Figure 9A, showing another embodiment.

Figure 14 is a diagram similar to that of Figure 11, illustrating another embodiment.

Figures 15A-15B illustrate the prior art.

Identification of the reference numbers used in the drawings 1 diaper (article of use) 2 chassis 3 mechanical fastener 8 frontal waist region (first waist region) 9 back waist region (second waist region) 10 crotch region 11 first lateral zone 12 second lateral zone 13, 14 assembly member 15, 16 hook element 17, 18 eyelet element 26, 27 first region 28, 29 second region 30, 31 third region 32, 33 grip area 35 first fold line 36 second bending line 41 first network 42 second network 44 cutting line 45 extreme 46 opposite end 58 interior side border 59 outer side edge 60 upper end 61 lower end 201 diaper (article of use) 202 chassis 203 mechanical fastener 208 frontal waist region (first waist region) 209 posterior waist region (second waist region) 210 crotch region 211 first lateral zone 212 second lateral zone 213, 214 mounting member 215, 216 hook element 217, 218 eyelet element 226, 227 first region 228, 229 second region 230, 231 third region 232, 233 first provision of adhesive points 235 first fold line 236 second fold line 241 first network 242 second network 244 cutting line 245 extreme 246 opposite extreme 251, 252 second arrangement of adhesive points DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Details of the first aspect of the present invention will be more fully understood from the description made hereinafter of an adult diaper as an exemplary embodiment with reference to Figures 1 to 5 of the accompanying drawings. Figure 1 is a perspective view of the diaper 1 with one of the transversely opposite side edges thereof and figure 2 is a plan view showing the diaper 1 developed horizontally as partially cut to facilitate illustration. As illustrated, the diaper 1 comprises a liquid absorbent chassis 2 and a mechanical fastener 3. The chassis 2 has a longitudinal direction Y, a transverse direction X, an inner side 4 that faces the skin of the wearer and an outer side 5 that is oriented towards the user's garment. It should be noted that the near side represents the inner side facing towards the skin of the wearer and the far side represents the outer side facing towards the wearer's garment with respect to a plane defined by figure 2. The undercarriage 2 comprises an inner sheet 6 defining the inner side 4 that faces the skin of the wearer, an outer sheet 7 defining the outer side 5 that faces the wearer's garment, and a liquid absorbent core 20 that is located in the side of the inner sheet 6 that is directly oriented to the wearer's skin. The inner and outer sheets 6, 7 are made of a non-woven, fibrous, liquid-permeable fabric or the like and the liquid-absorbent core 20 is generally made of a mixture of fluff pulp fibers and super absorbent polymer particles, all of these Supply materials are conventionally used in the relevant technical field. Said chassis 2 includes a front waist region 8, a rear waist region 9 and a crotch region 10 extending between the front and rear waist regions 8, 9.

The front region 8 includes a pair of first lateral zones 11 opposite one another in the transverse direction X and extending in the longitudinal direction Y, and the rear waist region 9 includes a pair of second lateral zones 12 opposite one another in the transverse direction X and extending in the longitudinal direction Y. The first lateral zones 11 respectively have a pair of elongated mounting members (ear-like members) 13, 14 fixed to the inner sheet 6 to extend in the longitudinal direction Y and a pair of hook elements 15, 16 constituting the mechanical fastener is attached to the chassis 2 by means of the mounting members 13, 14. The first side zones 11, the mounting members 13, 14 and the hook elements 15 , 16 cooperate together to define the first regions of union.

The mounting members 13, 14 are made, for example, of material such as a non-woven, fibrous fabric and comprise respectively first regions 26, 27 attached to the inner sheet 6 along the first respective lateral zones 11, the second regions 28, 29 folded behind the first regions 26, 27 in the first regions 26, 27, and the third regions 30, 31 extend outward from the second regions 28, 29 in the transverse direction X. The hook elements 15 , 16 are attached to the outer side that faces the user's garment in the third regions 30, 31 of the mounting members 13, 14 that extend outwardly. These hook elements 15, 16 are respectively divided in the longitudinal direction Y in upper halves 15a, 16a and lower halves 15b, 16b to separate from each other.

The inner leaf 6 has a pair of eyelet elements 17, 18 in the respective second lateral zones 12. The eyelet elements 17, 18 are dimensioned to have substantially the same length as a length of the second side zones 12 of the rear waist region 9 as measured in the longitudinal direction Y. In other words, these eyelet elements 17, 18 extend substantially along the total length of the second lateral zones 12 in the longitudinal direction Y. The second lateral zones 12 cooperate with the loop elements 17, 18 to define the second joining regions. The hook elements 15, 16 are removably coupled with the related eyelet elements 17, 18 wherein these eyelet elements 17, 18 are sized to be larger than the hook elements 15, 16 in the longitudinal direction and thus as in the transverse direction X. By dimensioning the eyelet elements 17, 18 to be larger than the hook elements 15, 16, it will be provided to couple these hook elements 15, 16 with the related eyelet elements 17, 18 including if the hook elements 15, 16 are more or less misaligned with the related eyelet elements 17, 18 in the longitudinal direction Y or in the transverse direction X. In this way no precise alignment is required between the hook elements and the hook elements. related buttonhole elements and consequently it is easy to place the diaper 1 on the user's body. Like these hook elements 15, 16 and the eyelet elements 17, 18, the "Sailboat" or "Scotch Magic ribbon" mark which are commonly used in the corresponding relevant technical field can be used.

The front and rear waist regions 8, 9 are provided with elastic waist members 21 attached thereto under tension and contractibly to extend in the transverse direction. Specifically, these elastic waist members 21 comprise first elastic members 21a that extend along a peripheral edge of a waist opening 24 and the second elastic members 21b between the first elastic members 21a and the crotch region 10. Members The waist elastics 21 are interposed between the inner and outer sheets 6, 7 and are joined to at least one of the inner and outer sheets 6, 7. The elastic waist members 21 are formed of a plurality of tapes, chains or segments of tape made of rubber wherein the second elastic members 21b are arranged substantially at regular intervals in the longitudinal direction Y to join the front and rear waist regions 8, 9 substantially over all areas of these two waist regions 8, 9 and in this way elasticize the front and rear waist regions 8, 9 in the X direction. By elasticizing the belt regions, to front and rear 8, 9, the desired adaptability of the front and rear waist regions 8, 9 to the user's body is ensured not only to prevent leakage of bodily fluids such as urine, but also to improve the appearance of the diaper 1 placed in the body of the user.

The elastic waist members 21 in the front waist region 8 extend to respective inner sides of the mounting members 13, 14 as seen in the transverse direction X, so that these elastic members 21 do not intersect with the respective ones. mounting members 13, 14. The hook elements 15, 16 are provided in third regions 30, 31 of the mounting members 13, 14 extending outwardly from the second regions 28, 29 in the transverse direction X, in order that the elastic waist members 21 do not overlap the hook elements 15, 16. Also in the rear waist region 9, the waist elastic members 21 extend to the respective inner sides of the eyelet elements 17, 18 as shown in FIG. it observes in the transverse direction X and does not overlap the eyelet elements 17, 18. Said arrangement in which neither the hook elements 15, 16 nor the eyelet elements 7, 18 are overlapped by the elastic members. The waist members 21 are effective to restrict the hook elements 15, 16 and the eyelet elements 17, 18 from wrinkling under the contraction of the waist elastic members 21. Consequently, an area for coupling is prevented from being reduced due to wrinkles and in this way the coupling does not become unstable. In this way it is ensured that the hook elements 15, 16 are firmly coupled with the eyelet elements related 17, 18.

Between the first and second side regions 1, 12 in the longitudinal direction Y, the peripheral edges 22 of the respective leg openings 25 are defined by the opposite lateral edges of the crotch region 10 to be bent towards a longitudinal center line PP that bisects a dimension of the diaper 1 in the transverse direction X. The diaper 1 is provided along the respective peripheral edges 22 with the elastic members of the legs 23 fixed contractively thereto under tension. More specifically, these elastic leg members 23 are interposed between the inner and outer leaves 6, 7 and are attached to or attached to at least one of the inner and outer sheets 6, 7. The elastic members of the legs 23 are formed of a plurality of tapes, chains or segments of tape made of rubber so that the contractile force of the rubber forming these elastic members 23 can deflect the peripheral edges 22 of the leg openings 25 to fit around the wearer's thighs and in this way to prevent leakage of body fluids tai-like urine. Elastic waist members 21, as well as the elastic members of the legs 23 can be made of natural rubber or synthetic rubber such as polyurethane and, if this is convenient, these elastic members can be replaced by a non-woven, elasticized fibrous fabric or an elastic plastic sheet, all These supply materials for the elastic members are commonly used in the field of relevant art.

In the diaper 1 constructed as described above, the hook elements 15, 16 can be placed in engagement with the related eyelet elements 17, 18 to join the front and rear waist regions 8, 9 to each other and thereby form the opening of the waist 24 and a pair of openings for the legs 25. In this way, the diaper 1 is formed into trainers. To place the diaper 1 on the user's body, after having joined the front and rear waist regions 8, 9 together, the user's legs can be inserted through the opening of the waist 24 into the respective openings for the legs 25 and then the diaper 1 can be raised along the wearer's waist. Alternatively, before joining the front and rear waist regions 8, 9, the respective regions of the diaper 1 can be applied in the corresponding regions of the wearer's body and then the hook elements 15, 16 can be placed in engagement with the eyelet elements. 17, 18 to join the front and rear waist regions 8, 9, to form the diaper 1 in the trainers. Thus, the diaper 1 according to the present invention is convenient for placing it on the wearer's body selectively in the form of training pants or in the form of an open-type diaper.

Now, a method for making such a diaper 1 will be described. As schematically illustrated in Figure 3, the continuous network forming the diapers 1 is formed in the direction of the DM machine and, finally, it is separated along a length of cutting line 44 extending in the perpendicular direction DP that is orthogonal to the direction of the DM machine to remove the individual diapers 1. In the net that makes up the diapers 1, the second side areas 12 and the first side areas 11 of the diapers 1 are respectively continuous with each other so that the transverse direction X of the diapers 1 coincide with the address of the DM machine. In a first step (a), a first network 41 used to form the outer sheet 7 is fed and the elastic waist members 21 and the elastic members of the legs 23 are continuously connected to this first network 41 under tension in the direction of the DM machine. It should be appreciated that the joining means such as the adhesives used to join these elastic members 21, 23 are not illustrated in Figure 3.

In a second step (b), a second network 42 used to form the inner sheet 6 is fed to and joined to the first network 41. Both the first network 41 and the second network 42 are made of fibrous networks. With respect to this second step (b) and the last steps, the elastic waist members 21 are not illustrated, and the elastic members of the legs 23 are indicated by dashed lines in the appended diagrams. In a third step (c), the first and second networks 41, 42 are formed with a circular opening 43 along a circle defined by the elastic members of the legs 23 so that the peripheral edges of this opening 43 can define the peripheral edges 22 of the openings for the legs 25. The cutting line 44 extends diametrically through the opening of 43. In a fourth step (d), the liquid-absorbent core 20 is attached to the second network 42 by joining means (not shown) between each pair of the adjacent openings 43, 43 in the direction of the DM machine.

Figure 4 is a diagram schematically illustrating the fifth to seventh steps (e), (f), (g) to form a fastener assembly 47 comprising the mounting members 13, 14, the hook elements 15, 16 and the eyelet elements 17, 18. In the fifth step (e), the mounting members 13, 14 are folded back along the first fold lines 35 and then along the second fold lines 36 for forming the first regions 26, 27, the second regions 28, 29, and the third regions 30, 31, respectively. The first regions 26, 27 extend from the respective proximal ends of the mounting members 13, 14 to the first related bending lines 35, the second regions 28, 29 extend from the first related bending lines 35 to the second lines of related bends 36, and the third regions 30, 31 extend from the second related bending lines 36 to the respective distal ends of the mounting members 13, 14. The first regions 26, 27 are attached to the second related regions. , 29 by means of adhesive layers 38. In continuously made diapers, each set of adjacent mounting members 13, 14 can be formed from a single fibrous non-woven fabric attached to the second network 42 at a time so that first regions 26, 27 are contiguous with each other so as to extend in the perpendicular direction DP. The first regions 26, 27 fixed to the second network 42 are subsequently cut along the cutting line 44. The mounting members 13, 14 including these first regions 26, 27 are bilaterally symmetrical around the cutting line 44, of which the mounting member 13 has an inverted Z-shaped cross section and the mounting member 14 has a Z-shaped cross section.

In the fastener assembly 47, the mounting members 13, 14 and the eyelet elements 17, 18 are dimensioned longitudinally to be substantially the same in the machine direction DM as in the perpendicular direction DP, while the hook elements 15, 16 are dimensioned longitudinally to be shorter than the elements of eyelet 17, 18 in the direction of the machine DM, as well as in the perpendicular direction DP. Accordingly, the eyelet elements 17, 18 are partially exposed to the outside beyond the respective peripheral edges of the hook elements 15, 16 when the hook elements 15, 16 engage the eyelet elements 17, 18. Each of the eyelet elements 17, 18 includes inner and outer side edges 58, 59 extending in the perpendicular direction DP and upper and lower ends 60, 61 extending in the direction of the DM machine. The eyelet elements 17, 18 are subsequently cut along the cut line 44 to form the inner side edge 58 on the cut line 44.

In the sixth step (f), the third regions 30, 31 of the respective mounting members 13, 14 folded back on themselves are formed with the adhesion zones 32, 33, so that these adhesion zones 32, 33 overlap partially the outer side edges 59 and the upper and lower ends 60, 61 of the respective eyelet elements 17, 18. The relative positions between the adhesion zones 32, 33 and the hook elements 15, 16 are illustrated in Figure 5 As illustrated, the third regions 30, 31 are provided with these adhesion zones 32, 33 so as to face the upper and lower ends 60, 61 of the respective outer side edges 59 of the eyelet elements 17, 18 as it is observed in the perpendicular direction DP. The respective upper halves 15a, 16a of the hook elements 15, 16 include upper ends 50, 51 and the respective lower halves 15b, 16b include lower ends 52, 53. The respective hook elements 15, 16 also include side edges 54 , 55 on one side and side edges 56, 57 on the other side. The adhesion zones 32 extend outwardly beyond the upper ends 50, 51 and the side edges 54, 55 on one side, while the adhesion zones 33 extend outwardly beyond the lower edges 52, 53. and the side edges 54, 55 on the other side.

In the seventh step (g), the hook elements 15, 16 are joined to the respective third regions 30, 31 of the mounting members 13, 14. The hook elements 15, 16 can be previously hooked with the eyelet elements associated 17, 18 or the hook elements 15, 16 can be coupled with the associated eyelet elements 17, 18 after the hook elements 5, 16 have been joined to the associated third regions 30, 31. In both cases, the adhesion zones 32, 33 provided in the mounting members 13, 14, are temporarily joined to the associated eyelet elements 17, 18, by placing the hook elements 15, 16 in engagement with the eyelet elements 32. , 33 associates.

The adhesion zones 32, 33 are provided between the third regions 30, 31 and the associated hook elements 15, 16, and therefore the adhesion zones 32, 33 can sometimes be partly covered with the hook elements 15, 16. But most of the adhesion zones 32, 33 extend outwardly beyond the hook elements 15, 16, i.e., they are exposed outside the associated hook elements 15, 16. The portions of the adhesion zones 32, 33 that are exposed in this manner are oriented towards the corners defined by the inner side edges 58 and the upper and lower ends 60, 61 of the eyelet elements 17, 18 are temporarily joined to the mounting members 13, 14 at the corners thereof.

In an eighth step (h), the fastener assembly 47 constructed as already described above, is fed to the second network 42 as illustrated in Figure 3. It will be understood that the fastener assembly 47 is turned by 90 ° while is fed to the second network 42. As a result, the address of the machine DM, as well as the perpendicular direction DP indicated by the double-pointed arrows in figures 4 and 5 are inverted in figure 3. The first and second networks 41 , 42 define an end 45 and the opposite end 46, both extending in the direction of the DM machine, so that a section of the first and second networks 41, 42 that is extends to one side, towards the end 45, will define the front waist region 8, and a section thereof extending to one side, towards the opposite end 46, will define the rear waist portion 9 of the diaper 1. The members Mounting 13, 14 are attached to the portion of the second network 42 extending to one side, towards the opposite end 46 by means of an adhesive layer (not shown).

In a ninth step (i), the network assembly comprising the first and second networks 41, 42 is folded in two, with the opposite ends 45, 46 positioned exactly one above the other and with the liquid absorbent core 20 inside. The eyelet elements 17, 18 are joined to the second network 42 in regions thereof positioned on one side, towards the end 45 while the network assembly comprising the first and second networks 41, 42 is folded in half.

In a tenth step (j), the network assembly comprising the first and second networks 41, 42 folded in two, is cut along the cut line 44 to obtain the individual diaper 1, wherein the first side zones 11 of the front waist region 8 are defined by the end 45 of the net assembly comprising the first and second networks 41, 42, and the second side zones 12 of the rear waist region 9 are defined by the opposite end 46 of the network assembly. With this, the mounting members 3, 14 and the eyelet elements 17, 8 are also cut along the cutting line 44, respectively, so that the mounting members 13, 14 extend along the lengths of the cutouts. first zones laterals 11, and the eyelet elements 17, 18 extend along the second lateral areas 12. The direction of the machine DM and the perpendicular direction DP in the process for manufacturing the diaper 1, correspond to the transverse direction X and the longitudinal direction Y of the diaper 1, respectively.

According to the method for making the diaper 1 as described above, the third regions 30, 31 of the mounting members 13, 14 are temporarily attached to the associated eyelet elements 17, 18 by means of the adhesion zones 32, 33 to prevent the eyelet elements 17, 18 from being raised or rolled up. Although it is the tendency that the eyelet elements 17, 18, particularly the upper and lower ends thereof, tend to rise or roll during the manufacture of the diaper 1, the adhesion zones 32, 33 formed in the mounting members 13, 14 at the upper and lower ends thereof, increase the restricting effect against said lifting or twisting of the eyelet elements 17, 18. This is how the presence of the adhesion zones 32, 33 serves to prevent the elements of eyelet 17, 18 are raised or rolled up during the manufacture of the diaper 1, so that it does not result in the displacement of the net assembly and / or that the production speed decreases.

The adhesion force of the adhesion zones 32, 33 with respect to the eyelet elements 17, 18 is set in such a way that it is lower than the coupling strength between the hook elements 15, 16 and the eyelet elements 17, 18. Consequently, when trying uncoupling the hook elements 15, 16 from the eyelet elements 17, 18, the temporary fixing of the eyelet elements 17, 18 by the adhesion zones 32, 33 is easily released without hindering the uncoupling of the hook elements 15, 16 from the eyelet elements 17, 18. The adhesion zones 32, 33 have been described and illustrated to provide them in the third regions 30, 31 of the respective mounting members 13, 14, to be oriented towards corners defined by the outer side edges 59 and the upper ends 60 and the lower ends 61 of the respective eyelet elements 17, 18. However the invention is not limited to said location of the adhesion zones 32, 33, provided that it is possible to prevent the eyelet elements 17, 18 from being raised or rolled up. For example, the adhesion zones 32, 33 can be formed such that they are oriented towards the upper and lower ends 60, 61, not intermittently but continuously over the entire length of these upper and lower ends 60, 61. , respectively.

Adhesion zones 32, 33 can be made with materials having re-adhesion properties. The use of said materials allows the adhesion zones 32, 33 to stick again on the eyelet elements 17, 18 even after the temporary connection has been released. Accordingly, even when the hook elements 15, 16 are reattached with the eyelet elements 17, 16 to put the diaper 1 on the body of the wearer after having released the temporary joint by means of the adhesion zones 32, 33, and that the hook elements 15, 16 have been uncoupling the eyelet elements 17, 18, it is possible that the adhesion zones 32, 33 prevent the eyelet elements 17, 18 from being raised or rolled up with respect to the mounting members 13, 14 respectively. By preventing the eyelet elements 17, 18 from rising or wrapping while the diaper 1 is placed on the wearer's body, it is also possible to prevent the coupling area from being unacceptably reduced or a feeling of discomfort to be generated for the user. the user, or that the elements of eyelet 17, 18 come into direct contact with the user's skin and that cause any type of problem on the skin. In the case of a trainer-type diaper used as the article of use, the diaper can be put on the user's body without releasing the temporary joint and, in this case, the presence of the adhesion zones 32, 33 serve to prevent that the hook elements 15, 16 are unintentionally uncoupled from the eyelet elements 17, 18 when the diaper is raised. Obviously it will be understood that, also in the case of said trainer-type diaper, it is possible to prevent the eyelet elements 17, 18 from being raised or rolled up.

Although the hook elements 15, 16 are attached to the associated mounting members 13, 14 and then the eyelet elements 17, 18 are attached to the hook elements 15, 16 to form the fastener assembly, which is then attached to the second network 42 constituting the chassis 2 according to the described modality, the invention is not limited to this modality. Alternatively the hook elements 15, 16 can be attached to the second network 42 in its region that is on one side towards the opposite end 46 of the same, and the eyelet elements 17, 18 can be attached to the second network 42 in its region that is on one side towards the end 45, and then the network assembly can be bent into two to engage the hook elements 15, 16 with the associated eyelet elements 17, 18. In the method for making the diaper 1 as described above, the different synchronizations can be appropriately changed to feed the liquid absorbent core 20, form the opening 43 defining the peripheral edges of the respective leg openings 25 and the other steps.

Although the hook elements 15, 16 are joined to the front waist region 8 and the eyelet elements 17, 18 are joined to the rear waist region 9 according to the modality described above, it is possible to reverse this relationship. Specifically, although the front waist region 8 was designated as the first waist region, and the rear waist region 9 was designated as the second waist region according to the modality described and illustrated, it is possible to designate the waist region front 8 as the second waist region and designating the rear waist region 9 as the first waist region. In any case it is preferable to join the hook elements to the second net 42 in a manner in which the hook elements, which already have a relatively high stiffness, do not come into contact with the user's skin and cause damage to the same Although the diaper 1 includes the liquid absorbent core 20 prepared separately from the chassis 2 according to the embodiment described above, it is also possible to wall the liquid absorbent core between the inner and outer sheets 6, 7 of the chassis 2.

Although each of the assembly members 13, 14 are folded in three along the first and second fold lines to define the first, second and third regions to present the substantially Z-shaped or inverted Z-shaped cross section according to the described and illustrated embodiment , the invention is not limited to said modality. For example, each of the mounting members 13, 14 can be bent in two towards the longitudinal center line P-P to define the second and third regions. The adhesion zones 32, 33 can be made with a material that is commonly used in the relevant technical field, such as adhesive, thermal or ultrasonic bonding. Although these adhesion zones 32, 33 are formed between the eyelet elements 17, 18 and the mounting members 13, 14 for temporarily joining the eyelet elements 17, 18 to the mounting members 13, 14 according to the embodiment described and illustrated, it is also possible to form the adhesion zones 32, 33 between the eyelet elements 17, 18 and the hook elements 15, 16. In any case it is important to avoid that the temporary connection between the eyelet elements 17, 18 and the mounting members 13, 14 affect the engagement between the eyelet elements 17, 18 and the hook elements 5, 16.

Figures 6 to 11 illustrate one embodiment of the present invention in the form of an adult diaper as a typical embodiment of the invention. Figure 6 is a perspective view of the diaper 201 placed on the wearer's body with one of the transversely opposite side zones open, and Figure 7 is a developed plan view of the diaper 201 partially cut away for better illustration. As illustrated, the diaper 201 comprises a liquid-absorbent chassis 202 and mechanical fasteners 203. The chassis 202 has a longitudinal direction Y, a transverse direction X, an inner side 204 that faces the skin of the wearer and an outer side 205 which is oriented towards the user's garment. With respect to the plane defined by a sheet of FIG. 7, the near side corresponds to the inner side that faces the user's skin, and the remote side corresponds to the outer side that faces the user's garment. The chassis 202 includes an inner sheet 206 defining the inner side facing the skin of the wearer, an outer sheet 207 defining the outer side 205 that faces the wearer's garment and a liquid absorbent core 220 provided in the inner sheet 206 so that it is oriented towards the wearer's skin more directly than inner sheet 206. The inner and outer sheets 206, 207 can be made, for example, with a non-woven, fibrous, liquid-permeable fabric , and the liquid absorbent core 220 can be made, for example, with a mixture of fluff pulp fibers and super absorbent polymer particles, all of which are materials that are commonly used in the relevant technical field. Said chassis 202 comprises a front waist region 208, a rear waist region 209 and a crotch region 210 extending between the front and rear waist regions 208, 209.

The front waist region 208 has a pair of first zones laterals 211 opposite one another in the transverse direction X and extending in the longitudinal direction Y, and the rearward waist region 209 have a pair of second lateral zones 212 opposite one another in the transverse direction X and which are extend in the longitudinal direction Y. The inner sheet 206 is provided along the first side areas 211 with a pair of mounting members (ear-like members) 213, 214 that elongate in the longitudinal Y direction. hook 215, 216 serving as first fastening members are attached to chassis 202 by intermediation of these mounting members 213, 214.

The mounting members 213, 214 may be made, for example, with a fibrous nonwoven fabric and respectively comprise first regions 226, 227 attached to the inner sheet 206 along the respective first side regions 211, second regions 228, 229 folded back from the first regions 226, 227 towards the inner side facing the user's skin, over the first regions 226, 227, and third regions 230, 231 extending outwardly from the second regions 228, 229 in the transverse direction X. The hook elements 215, 216 are folded on the outer side facing the user's garment in the third regions 230, 231 of the mounting members 213, 214 extending outwardly. These hook elements 215, 216 are respectively divided in the longitudinal direction Y, in upper halves 215a, 216a and lower halves 215b, 216b which are separated one from the other.

The inner leaf 206 is provided along the respective second side regions 212 with a pair of eyelet elements 217, 218 which serve as second clamping members. The eyelet elements 217, 218 are dimensioned so that they have substantially the same length as the second side regions 212 of the rear waist region 209, measured in the longitudinal direction Y. In other words, these buttonhole elements 217, 218 extend substantially along the entire length of the second lateral zones 212 in the longitudinal direction Y. The hook elements 215, 216 are cod in detachable form with the associated eyelet elements 217, 218. As these hook elements 215, 216 and eyelet elements 217, 218, the trademark "Sailboat" or "Scotch Magic tape" which are commonly used in the relevant technical field.

The front and rear waist regions 208, 209 are provided with elastic waist members 221 attached thereto under tension, but in a retractable manner, to extend in the transverse direction X. Specifically, these waist elastic members 221 comprise first members elastics 221a extending along a peripheral edge of a waist opening 224, and second elastic members 221b extending in the transverse direction X between the first elastic members 221a and the crotch region 210. These elastic waist members 221 are interleaved between the inner and outer sheets 206, 207 and are joined to at least one of the inner and outer sheets 206, 207. The waist elastic members 221 can be formed with a plurality of cords, strands or segments of tape made of rubber, wherein the second elastic members 221b are arranged substantially at regular intervals in the longitudinal direction Y so as to merge with the front and rear waist regions 208, 209 substantially over all areas of these two waist regions 208, 209 and thus provide elasticity to the front and rear waist regions 208, 209 in the transverse direction X. By providing elasticity to the front and rear waist regions 208, 209, it is secured the desired adjustment of the front and rear waist regions 208, 209 to the wearer's body, not only to prevent runoff of bodily fluids, such as urine, but also to improve the appearance of the diaper 201 placed on the wearer's body.

The elastic waist members 221 in the front waist region 208 extend to respective inner sides of the mounting members 213, 214 seen in the transverse direction X, so that the waist elastic members 221 do not intersect the respective waist members. assembly 213, 214. The hook elements 215, 216 are provided in third regions 230, 231 of the mounting members 213, 214 extending outward from the second regions 228, 229 in the transverse direction X so that the elastic waist members 221 do not overlap with the hook members 215, 216. Also in the back waist region 209, the waist elastic members 221 extend to the respective inner sides of the eyelet elements 217, 218 seen in the transverse direction X and they do not overlap with the eyelet elements 217, 218. Said arrangement in which neither the hook elements 215, 216 nor the eyelet elements 217, 218 so n overlapped by the elastic waist members 221, it is effective to prevent the hook elements 215, 216 and the eyelet elements 217, 218 from wrinkling under the contraction of the waist elastic members 221. Consequently an area would not be reduced coupling due to wrinkles, and therefore the coupling would not become unstable. In this way it is ensured that the hook elements 215, 216 are firmly coupled with the associated eyelet elements 217, 218.

Between the first and second side regions 211, 212 in the longitudinal direction Y, the peripheral edges 222 of respective leg openings 225 are defined, by means of the opposite lateral edges of the crotch region 210, such that they are bent towards a longitudinal centerline PP dividing a dimension of the diaper 201 in the transverse direction X. The diaper 201 is provided, along the respective peripheral edges 222, with leg elastic members 223 that are joined thereto under tension. More specifically, these leg elastic members 223 are sandwiched between the inner and outer sheets 206, 207 and attached to or attached to at least one of these inner and outer sheets 206, 207. The leg elastic members 223 are formed with a plurality of cords, strands or segments of tape made of rubber, so that the force of contraction of the rubber forming these elastic members 223 can deflect the peripheral edges 222 of the leg openings 225 so that they fit around the thighs of the leg. user, and thus avoid the runoff of body fluids, such as urine. The elastic waist members 221, as well as the leg elastic members 223, can be made of natural rubber or synthetic rubber, such as polyurethane and, if convenient, these elastic members can be replaced by a non-woven and elasticized fibrous fabric or With an elastic plastic sheet, all these starting materials for the elastic members are commonly used in the relevant technical field.

In the diaper 201 constructed as already described above, the hook elements 215, 216 can be placed in engagement with the associated eyelet elements 217, 218 to join together the front and back waist regions 208, 209 and thus forming the waist opening 224 and a pair of leg openings 225. In this way the diaper 201 is configured as disposable underpants. To place said diaper 201 on the user's body, after joining the front and rear waist regions 208, 209 together, the user's legs can be inserted through the waist opening 224 into the respective leg openings 225 , and then the diaper 201 can be raised along the wearer's waist. Alternatively, before joining the front and rear waist regions 208, 209, the respective regions of the diaper 201 can be applied in the corresponding regions of the wearer's body, and then the hook elements 215, 216 can be placed in engagement with the buttonhole elements 217, 218 associated to join the front and rear waist regions 208, 209, to configure the diaper 201 in disposable underpants. Therefore the diaper 201 according to the present invention is convenient to put it in the body of a user selectively in the form of disposable underpants or in an open-type diaper form.

Figure 8 is a perspective view showing the diaper before being practically used and Figure 9A shows a partially sectioned sectional view, taken along the line IX-IX in Figure 8. Before practically using it, said diaper 201 is in a folded state, i.e., the front and rear waist regions 208, 209 are joined in a plane with the inner sheet 206 being in a face-to-face relationship. The mounting members 213, 214 are folded back from the side of the inner sheet 206 of the front waist region 208 to have a substantially Z-shaped cross section and a substantially inverted Z-shaped cross section, respectively, and in this way define first regions 226, 227, second regions 228, 229 and third regions 230, 231. Specifically, mounting members 213, 214 are folded along first fold lines 235, 235 and second fold lines 236 , 236 extending in the longitudinal direction Y, such that each of the first regions 226, 227 extends from a transverse outer end of the mounting member 213 or 214 to the first associated fold line 235, each of the second regions 228, 229 extends from the first associated bending line 235 to the second associated bending line 236, and each of the third regions 230, 231 extends from the second an associated bending line 236 to the other transversely outer end of the mounting member 213 or 214. The first regions 226, 227 are joined to the inner sheet 206 of the front waist region 208 by means of first adhesive layers 237 and to the second ones regions 228, 229 by means of second adhesive layers 238.

Between the second regions 228, 229 and the third regions 230, 231, first adhesive-bonding arrangements 232, 233 are formed which serve to temporarily fix these second regions 228, 229 to the third regions 230, 231 and thus prevent these second and third regions 228, 229, 230, 231 are unfolded at an unscheduled time during the manufacture of the diaper 201. The first arrangements of adhesive spots 232, 233 are broken at the end of the product or when the diaper 201 is placed on the body of the user, and the diaper 201 has the shape that can be seen in Figure 6. The third regions 230, 231 are provided on respective sides facing the inner sheet 206 of the rear waist region 209, with the hook elements 215 , 216 attached thereto by suitable joining means (not shown). The inner sheet 206 in the rear waist region 209, is provided with the eyelet elements 217, 218 attached thereto by suitable joining means (not shown) and are put into engagement with the associated hook elements 215, 216 .

In the construction described above, the first adhesive stitch arrangements 232, 233 are formed so as to be adjacent to the inner ends of the mechanical fastener assemblies, so that these first adhesive stitch arrangements 232, 233 can be folded over the associated hook elements 215, 216, preferably can be folded over the hook elements 215, 216 coupled with the eyelet elements 217, 218.

Figure 9B only shows the mounting member 213 released from the temporary fixing effect of the first adhesive dot arrangement 232, since the state of the mounting member 214 after releasing it from the effect of the first associated arrangement of adhesive spots 233 is similar to the case of the mounting member 214. To free the mounting member 213 from the temporarily fixed state as shown in Figure 9A, the inner sheet 206 in the front waist region 208 can be removed from the inner sheet 206 in the region of back waist 209 with the hands inserted between the front and rear regions 208, 209 or with the fingers holding the inner and outer sheets 206, 207 of the front and rear waist regions 208, 209.

The first arrangements of adhesive points 232, 233 temporarily fix the second regions 228, 229 to the third regions 230, 231. The second regions 228, 229 are joined to the inner sheet 206 by means of second adhesive layers 238, 238, the first regions 226, 227 and the first adhesive layers 237, 237. The inner sheet 206 is overlapped in the second regions 228, 229 by means of the respective adhesive layers and, consequently, the second regions 228, 229 are provided with a stiffness sufficient to support the first arrangements of adhesive spots 232, 233 securely on the side of the inner sheet 206 in the front waist region 208. The third regions 230, 231 are attached to the hook elements 215, 216 and, in Consequently, the third regions 230, 231 are also provided with a stiffness sufficient to support the first arrangements of adhesive spots 232, 233 on the side of the inner sheet 206 in the waist region p osterior 209. In this way, when the second regions 228, 229 are separated from the third regions 230, 231, the rigidity of the second regions 228, 229 and the third regions 230, 231 that sufficiently supports the first arrangements of adhesive spots 232, 233 prevents the first adhesive dot arrangements 232, 233 from following the second regions 228, 229 or the third regions 230, 231, therefore ensuring that the fixed states of the mounting members 213, 214 can be released. . Further, by forming the first arrangements of adhesive spots 232, 233 to place them over the regions in which the hook elements 215, 216 are engaged with the eyelet elements 217, 218, the third regions 230, 231 are provided with a stiffness correspondingly greater. As a result, said stiffness serves to prevent the third regions 230, 231 from following the movement of the first adhesive stitch arrangements 232, 233 when these first adhesive stitch arrangements 232, 233 are pulled up.

The second regions 228, 229 are joined to the inner sheet 206 in the front waist region 208 by the intermediation of the first regions 226, 227, and the third regions 230, 231 are attached to the inner sheet 206 in the waist region 209 by the intermediation of the hook elements 215, 216 and the eyelet elements 217, 218 coupled together. With such an arrangement, the mounting members 213, 214 can be gently released from the temporary fixing effect of the first adhesive stitch arrangements 232, 233 by pulling the inner sheet 206 in the front waist region 208 away from the inner sheet 206 in the rear waist region 209. The coupling strength between the hook elements 215, 216 with the eyelet elements 217, 218 can be made higher than the adhesive strength of the first arrangements of adhesive spots 232, 233 to prevent the elements of hook 215, 216 are decoupled from grommet elements 217, 218 before the mounting members 213, 214 of the temporary fixing effect of the first adhesive stitch arrangements 232, 233 are released.

After the mounting members 213, 214 have been released from the temporary fixing effect of the first adhesive stitch arrangements 232, 233, the third regions 230, 231 extend outward in the transverse direction X beyond the first zones. sides 211 of the front waist region 208. The third regions 230, 231 extending in this manner, are provided on the respective outer sides facing the wearer's garment with the hook elements 215, 216 with which they engage the associated eyelet elements 217, 218. With said arrangement of the hook elements 215, 216 and eyelet elements 217, 218, the hook elements 215, 216 are smoothly coupled with the associated eyelet elements 217, 218 when the diaper 201 is placed on the wearer's body.

Figures 10 and 11 schematically illustrate the method for making the diaper 201. As schematically illustrated in Figure 10, a network comprising diapers 201 is formed in the direction of the DM machine and finally they are separated along a line of cut 244 extending in a perpendicular direction DP that is orthogonal to the address of the machine DM to produce the individual diapers 201. In the network comprising the diapers 201, the second side areas 212 and the first side areas 211 of the diapers 201 are respectively continuous one after the other, so that the transverse direction X of the diapers 201 coincides with the address of the machine DM. In a first step (a), a first network 241 used to form the outer sheet 207 is fed, and the elastic waist members 221 and the leg elastic members 223 are continuously attached to this first network 241 under tension in the direction of the DM machine. It will be appreciated that the attachment means, such as adhesive, that are used to join these elastic members 221, 223 are not illustrated in Figure 8.

In a second step (b), a second network 242 is fed which is used to form the inner sheet 206 towards and attached to the first network 241. Both the first network 241 and the second network 242 are made of fibrous webs. With respect to this second step (b) and later steps, the elastic waist members 221 are not illustrated, and the leg elastic members 223 are indicated by dashed lines in the accompanying diagrams. In a third step (c), the first and second networks 241, 242 are formed with a circular opening 243, along a circle defined by the leg elastic members 223 so that the peripheral edges of this opening 243 can define the peripheral edges 222 of the leg openings 225. The cut line 244 extends diametrically through the opening 243. In a fourth step (d), the liquid absorbent core 220 is joined to the second network 242 by means of attachment (not shown) between each pair of adjacent openings 243, 243 in the direction of the DM machine.

Figure 11 is a diagram schematically illustrating a fifth, sixth and seventh steps (e), (f), (g) to form a fastening assembly 247 comprising the mounting members 213, 214, the hook elements 215, 216 and eyelet elements 217, 218. In the fifth step (e), the mounting members 213, 214 are bent back to form first regions 226, 227, second regions 228, 229 and third regions 230, 231 respectively. The mounting members 213, 214 are made with individual sheets of fibrous nonwoven fabric and are folded back along a first fold line 235 and a second fold line 236 both extending in the direction of the DM machine. It will be appreciated that, in the network comprising the continuously made diapers, each pair of adjacent mounting members 213, 214 are formed at the same time and therefore the first regions 226, 227 are formed continuously in the perpendicular direction DP. These first regions 226, 227 are then cut to along the line of cut 244.

In the sixth step (f), the first adhesive dot arrangements 232, 233 are formed between the second regions 228, 229 and the third regions 230, 231 of the bent mounting members 213, 214 for temporarily fixing the second regions 228, 229 and the third regions 230, 231. It will be appreciated that the fifth step and the sixth step can be established so that they develop consecutively. The first arrangements of adhesive points 232, 233 are formed intermittently over substantially the entire area of the mounting members 213, 214, seen in the direction of the machine DM. By intermittently forming the first adhesive dot arrangements 232, 233, it is possible to prevent the mounting members 213, 214 from having an unacceptably high stiffness, and consequently the rigidity does not create a feeling of discomfort against the user.

In the seventh step (g), the hook elements 215, 216 are joined to the respective third regions 230, 231 of the mounting members 213, 214. The hook elements 215, 216 can be previously hooked with the eyelet elements associated 217, 218 or the hook elements 215, 216 can be coupled with the associated eyelet elements 217, 218 after the hook elements 215, 216 have been attached to the associated third regions 230, 231. The eyelet elements 217, 218 are continuous in the perpendicular direction DP and are then cut along the cut line 244.

Figure 12 illustrates a positional relationship between the first arrangements of adhesive dots 232, 233, the hook elements 215, 216 and the eyelet elements 217, 218. In Figure 12, for convenience of illustration the mounting member is removed 214 and the first arrangements of adhesive points 232, 233 are indicated by imaginary lines. The first arrangements of adhesive dots 232, 233 are formed in the mechanical fastening assemblies, in which the hook elements 215, 216 are superimposed and engage with the associated eyelet elements 217, 218. Taking into account the undesirable irritation of the the user's skin and the soft coupling, the hook elements 215, 216 are dimensioned so that they are smaller than the eyelet elements 217, 218. As a result, the eyelet elements 217, 218 extend outward beyond the eyelets 217, 218. peripheries of the associated hook elements 215, 216, and it is preferable that the first adhesive dot arrangements 232, 233 are absent in these protruding regions of the eyelet elements. 217, 218, and the presence of these first adhesive stitch arrangements 232, 233 is limited to the regions in which the hook elements 215, 216 engage the associated eyelet elements 217, 218. In other words, the regions protruding elements 217, 218 are present outside the hook elements 215, 216, seen in the direction of the machine DM, but the first arrangements of adhesive points 232, 233 are not present in these protruding regions. More specifically, the protruding regions of the eyelet elements 217, 218 that are extending outwards, beyond the peripheries of the hook elements 215, 216, are respectively sized in the direction of the machine DM so that they are approximately 10 mm. Between the upper halves 215a, 216a and the lower halves 215b, 216b of the hook elements are defined regions that do not have a hook element and, also in these regions, none of the first adhesive dot arrangements 232, 233 are formed. No one of the first arrangements of adhesive spots 232, 233 is formed in the regions that do not have any of the hook elements 215, 216, in other words, in the regions in which the hook elements 215, 216 are not coupled with the eye elements 217, 218, and in this way the mounting members 213, 214 can be kept flexible. But it is not essential to form the first arrangements of adhesive points 232, 233 so that they overlap the hook elements, but the arrangements of adhesive spots can be located partially in the regions that do not have any of the hook elements.

The mechanical fastener assembly 247 that was formed in this manner is fed to the second network 242 in the eighth step (h) and, immediately prior to said feeding, the assembly is turned in 90 ° by the mechanical fastener assembly in a eighth step (h), fastener assembly 247 constructed as described above, is fed into second network 242 as illustrated in figure 10. It should be understood that fastener assembly 247 is turned by 90 °. Accordingly, the address of the machine DM, as well as the perpendicular direction DP indicated in figure 11 is inverted in figure 10. The first and second networks 241, 242 define one end 245 and the opposite end 246, both extending into the direction of the machine DM, so that a section of the first and second networks 241, 242 extending on one side, towards the end 245, will define the front waist region 208, and a section thereof extending to one side, towards the opposite end 246, will define the rear waist portion 209 of the diaper 201. The mounting members 213, 214 are attached to the portion of the second network 242 extending to one side, toward the opposite end 246 by medium of an adhesive layer (not shown).

In a ninth step (i), the network assembly comprising the first and second networks 241, 242 is bent in two, with the end 245 and the opposite end 246 placed exactly one above the other and with the liquid-absorbent core 220 in. The first regions 226, 227 of the mounting members 213, 214 are joined to the second network 242 in regions thereof positioned on one side, towards the end 45 while the network assembly comprising the first and second is folded in half. second networks 241, 242.

In a tenth step (j), the network assembly comprising the first and second networks 241, 242 folded in two, is cut along the cut line 244 to obtain the individual diaper 20, wherein the first side zones 211 of the front waist region 208 are defined by the end 245 of the net assembly and the second side zones 212 of the rear waist region 209 are defined by the opposite end 246 of the net assembly. With this, the mounting members 213, 214 and the eyelet elements 217, 218 are also cut along the cut line 244, respectively, so that the mounting members 213, 214 extend along the lengths of the cutouts. first side regions 211, and eyelet elements 217, 218 extend along the second side areas 212. The machine direction DM and the perpendicular direction DP in the process for manufacturing diaper 201, correspond to the transverse direction X and the longitudinal direction Y of the diaper 201, respectively.

According to the method described above, the second regions 228, 229 are temporarily fixed in the third regions 230, 231 by means of the first adhesive dot arrangements 232, 233 to prevent the second regions 228, 229 and the third regions regions 230, 231 unfold at the last moment. The third regions 230, 231 detached from the second regions 228, 229 flap during feeding, and are sometimes caught by feeder rollers or the like. Mounting members 213, 214 trapped by the rollers can cause equipment failure or displacement of the network assembly. Said possibility or concern can be avoided by forming the first arrangements of adhesive points 232, 233 according to the present invention. To prevent the third regions 230, 231 from flapping, it is preferable to form the first adhesive dot arrangements 232, 233 in regions that are as remote as possible from the second fold line 236. Specifically, the first arrangements of adhesive dots 232, 233 are preferably formed at the respective inner ends of the hook elements 215, 216 seen in the transverse direction X.

The first arrangements of adhesive dots 232, 233 can be formed with adhesives such as hot melt adhesives, thermal or ultrasonic bonds. In the case of the illustrated embodiment, each pair of adjacent adhesive points in the first arrangements of the adhesive points 232, 233 are separated from each other by approximately 10 mm in the longitudinal direction Y. With said arrangement, a force of adhesion between the two second regions 228, 229 and associated third regions 230, 231 of mounting members 213, 214 preferably in the range of 0.2 to 3.0 N / 80 mm. The strength of adhesion is measured by the method that will be described below. A plurality of diapers 201 are prepared, each having the first arrangements of adhesive dots 232, 233, and the hook elements 215, 216 coupled with the associated eyelet elements 217, 218, as shown in Figures 8 and 9A- 9B. Each of the diapers 201 was cut between the upper and lower halves 215a, 215b or 216a, 216b of the hook elements in the transverse direction X and then the third bent regions 230, 231 in the longitudinal direction Y were cut along of the respective inner sides, seen in the transverse direction X, to obtain test pieces. These samples were subjected to measurement successively. Specifically, the test piece was held by the traction tester mandrels (Autograph of the AG-X series manufactured by SHIMADZU CORPORTION) in 50 mm positions from the end of the waist opening side, and the maximum resistance to the detachment with a distance between the mandrels of 50 mm and a speed of detachment of 500 mm / min. An average value was obtained from a plurality of measurements, such as the strength of adhesion.

The bond strength described above is established to ensure that the function of the first adhesive dot arrangements 232, 233 is effective during the manufacture of the diaper 201, to maintain the second regions 228, 229 and the third regions 230, 231 in a temporarily fixed condition and which is less than the coupling resistance between the hook elements 215, 216 and the eyelet elements 217, 218. In this way the temporary fixation can be maintained during the manufacture of the diaper 201, but can only be the temporary fixing effect being removed without uncoupling the hook elements 215, 216 from the associated eyelet elements 217, 218 when the diaper 201 is placed on the wearer's body.

Although the hook members 215, 216 are attached to the associated mounting members 213, 214 and then the eyelet elements 217, 218 are attached to the hook elements 215, 216 to form the fastener assembly, which is then attached to the second network 242 constituting the chassis 202 according to the described mode, the invention is not limited to this mode. Alternatively the hook elements 215, 216 can be attached to the second network 242 in its region that is on one side towards the opposite end 246 thereof, and the eyelet elements 217, 218 can be attached to the second network 242 in its region which is to one side towards the end 245, and then the network assembly can be bent in two to couple the hook elements 215, 216 with the associated eyelet elements 217, 218. In the method for making the diaper 201 described above, the various synchronizations can be appropriately changed to feed the liquid absorbent core 220, form the opening 243 defining the peripheral edges of the respective leg openings 225 and the other passages.

Although the hook elements 215, 216 are joined to the front waist region 208 and the eye elements 217, 218 are joined to the rear waist region 209 according to the embodiment described above, it is possible to reverse this relationship. Specifically, although the front waist region 208 was designated as the first waist region, and the rear waist region 209 was designated as the second waist region according to the embodiment described above, it is possible to designate the front waist region 208 as the second waist region and to designate the rear waist region 209 as The first waist region. In any case it is preferable to join the hook elements to the second net 242 in a manner in which the hook elements, which already have a relatively high stiffness, do not come into contact with the user's skin and cause damage to the same Although the diaper 201 includes the liquid absorbent core 220 prepared separately from the chassis 202 according to the embodiment described above, it is also possible to wall the liquid absorbent core between the inner and outer sheets 206, 207 of the chassis 202.

Figures 13 and 14 illustrate an alternative embodiment similar to the embodiment described above, except that this embodiment comprises, in addition to the first arrangements of adhesive spots 232, 233, second arrangements of adhesive spots 251, 252. The features that are different those of the second arrangements of adhesive points 251, 252 are similar to those of the embodiment described above, and a detailed description thereof will be omitted. In the alternative embodiment, members as well as elements similar to those of the previous embodiment are designated with similar reference numbers.

Figure 13 is a view similar to Figure 9A, showing the diaper 201 in a sectional view. As can be seen, the first adhesive-bonding arrangements 232, 233 and the second adhesive-bonding arrangements 251, 252 are formed between the second regions 228, 229 and the third regions 230, 231 of the respective mounting members 213, 214. The second adhesive stitch arrangements 251, 252 are set aside to the first adhesive stitch arrangements 232, 233 seen in the transverse direction X.

Figure 14 is a view similar to that of Figure 11, showing a positional relationship between the mounting members 213, 214, the hook elements 215, 216 and the eyelet elements 217, 218 during the manufacture of the diaper 201. The second arrangements of adhesive points 251, 252 are formed on the inward sides of the first associated adhesive point arrangements 232, 233 seen in the perpendicular direction DP. The first adhesive stitch arrangements 232, 233 as well as the second adhesive stitch arrangements 251, 252 are arranged intermittently in the direction of the DM machine such that the first adhesive stitch arrangements 232, 233 as well as the second arrangements of adhesive dots 251, 252 are respectively spaced at intervals of about 30 mm. The first adhesive dot arrangements 232, 233 are separated from the respective second adhesive dot arrangements 251, 252 by approximately 6 mm in the perpendicular direction DP.

Although not aligned, the individual adhesive points of the second adhesive stitch arrangements 251, 252 are located between the respective pairs of adjacent adhesive stitches in the machine direction DM in the first adhesive stitch arrangements 232, 233 so that the individual adhesive points in the first adhesive stitch arrangements 232, 233 and the second adhesive stitch arrangements 251, 252 never overlap one another in the perpendicular direction DP. The direction of the machine DM and the perpendicular direction DP of these first arrangements of adhesive points 232, 233 as well as the second arrangements of adhesive points 251, 252 correspond respectively to the longitudinal direction Y and the transverse direction X, respectively, in the diaper 201 as the product.

With the arrangement just described, the first adhesive stitch arrangements 232, 233 cooperate with the second adhesive stitch arrangements 251, 252 for temporary fixing. As an advantageous consequence, the temporary fixing strength of the respective adhesive stitch arrangements 232, 233, 251, 252 can be reduced without the concern that the mounting members can be released unintentionally from the temporary fixing effect of these dispositions of adhesive points. The relatively low clamping resistance facilitates the release of the mounting members from the temporary clamping effect, without accompanying the decoupling between the hook elements 215, 216 and eyelet elements 217, 218. By additionally forming the second adhesive stitch arrangements 251, 252, the adjacent stitches in the respective adhesive stitch arrangements 232, 233, 251, 252 can be further separated from each other and You can correspondingly reduce the number of these points. As a result, the undesirable increase in stiffness can be reduced due to the formation of the adhesive dot arrangements. The adhesive strength in this embodiment includes the first adhesive-bonding arrangements 232, 233 and the second adhesive-bonding arrangements 251, 252 is set to the same scale of about 0.2 to 3.0 N / 80mm as in the case of the embodiment that is used. described previously. The method for measuring adhesive strength is also similar to that previously described.

With the formation of the first adhesive stitch arrangements 232, 233 and the second adhesive stitch arrangements 251, 252 so that the individual adhesive stitches of the first and second arrangements never overlap one another in the perpendicular direction DP, the individual adhesive points of the first adhesive stitch arrangements 232, 233 and the second adhesive stitch arrangements 251, 252 are alternately interrupted during the release of the mounting members from the temporary fixing effect of these adhesive stitch arrangements. In this way, the mounting members can be easily released from the effect of these adhesive dot arrangements. Although the first adhesive stitch arrangements 232, 233 are described as being separated in the machine direction DM from the second adhesive stitch arrangements 251, 252 by about 30 mm, it is generally preferable to separate the first stitch arrangements 232, 233 from second arrangements of adhesive points 251, 252 associated in 20 mm or more. It is for this reason that if this distance is less than 20 mm, it will be difficult to interrupt the first arrangements and the second associated arrangements alternately. Specifically, the individual adhesive points in the first arrangements and the associated second arrangements sometimes have to be broken at the same time with a correspondingly increased effort.

The second arrangements of adhesive points 251, 252 can be formed at the same time and in the same manner as the first adhesive dot arrangements 232, 233 are formed.

Claims

NOVELTY OF THE INVENTION CLAIMS

1. - A method for making an article of use comprising a chassis and a fastener assembly, said chassis having a longitudinal direction, a transverse direction, a side facing the skin of the user and a side facing the garment of the wearer, a first waist region corresponding to one of the front and back waist regions and a second waist region corresponding to the other of the front and back waist regions, and a crotch region extending between said first and second regions of the waist region. waist, and said fastener assembly includes first fastening regions provided along a pair of first lateral zones of said first waist region opposed to each other in said transverse direction and extending in said longitudinal direction, and second fastening regions. provided along a pair of second lateral zones of said second waist region opposed to each other in said direction transverse and extending in said longitudinal direction, wherein said first clamping regions engage releasably with said second clamping regions, and wherein said first clamping regions include hook elements and said second clamping regions include elements of grommet, said method for making the article of use comprises the steps of: forming said first clamping regions with adhesion zones adapted to temporarily join said second clamping regions; and coupling said hook elements of said first fastening regions with said eyelet elements of said second fastening regions, and at the same time temporarily joining said first fastening regions with said second fastening regions by means of said adhesion zones.

2 - . 2 - A method to make an article of use comprising a chassis and mechanical fasteners, said chassis has a longitudinal direction, a transverse direction, a side facing the skin of the user and a side facing the garment of the user, a first region waist corresponding to one of the front and back waist regions and a second waist region corresponding to the other of the front and back waist regions, and a crotch region extending between said first and second waist regions , and said mechanical fasteners include first fastening members provided along a pair of first side regions of said first waist region opposed to each other in said transverse direction so as to extend in said longitudinal direction, and second fastening members provided along a pair of second lateral zones of said second waist region opposed to each other in December has transverse direction so as to extend in said longitudinal direction, wherein said first clamping members are releasably engaged with said second clamping members, and wherein said first clamping members are formed along said first lateral zones with the intervention of mounting members, said method comprises the steps of: folding back each of said mounting members along a first fold line extending in said longitudinal direction to define a first region and a second region, then along a second fold line that also extends in said longitudinal direction to define said second region and a third region, such that said second region overlaps said first region while said third region overlaps said second region. region; forming a disposition of adhesive points between said second region and said third region for temporarily fixing said second region in said third region; joining said third region with said first associated fastening member; coupling said first clamping member with said second associated clamping member; joining said first region with said first associated lateral zone; and joining said second fastening member with said second associated lateral zone; wherein said arrangement of adhesive points is formed so as to overlap said first associated fastening member.

3. - A method for making an article of use comprising a chassis and mechanical fasteners, said chassis having a longitudinal direction, a transverse direction, a side facing the skin of the user and a side facing the garment of the wearer, a first region of waist corresponding to one of the front and back waist regions and a second waist region corresponding to the other of the front and back waist regions, and a crotch region extending between said first and second waist regions, and said mechanical fasteners include first fastening members provided along a pair of first lateral zones of said first waist region opposed to each other in said transverse direction so as to extend in said longitudinal direction, and second fastening members provided to along a pair of second lateral zones of said second waist region opposed to each other in December has transverse direction so as to extend in said longitudinal direction, wherein said first clamping members engage releasably with said second clamping members, and wherein said first clamping members are formed along said first lateral zones with the intervention of mounting members, said method comprises the steps of: folding back each of said mounting members along a first fold line extending in said longitudinal direction to define a first region and a second region , then along a second fold line that also extends in said longitudinal direction to define said second region and a third region, such that said second region overlaps said first region while said third region overlaps said second region; forming a disposition of adhesive points between said second region and said third region for temporarily fixing said second region in said third region; joining said third region with said first associated fastening member which is coupled with said second fastening member; joining said first region with said first associated lateral zone; and joining said second fastening member with said second associated lateral zone; wherein said arrangement of adhesive points is formed so as to overlap said first associated fastening member.

4. - An article of use comprising a chassis and mechanical fasteners, said chassis has a longitudinal direction, a transverse direction, a side facing the skin of the user and a side facing the garment of the wearer, a first waist region corresponding to one of the front and back waist regions, a second waist region corresponding to the other of said front and back waist regions, and a crotch region extending between said first and second waist regions, and said mechanical fasteners include first fastening members provided along a pair of first lateral zones of said first waist region opposed to each other in said transverse direction so as to extend in said longitudinal direction, and second fastening members provided along a longitudinal direction. pair of second lateral zones of said second waist region opposed to each other in said transverse direction rsal so as to extend in said longitudinal direction, wherein said first clamping members are releasably engaged with said second clamping members, and wherein said first clamping members are formed along said first lateral zones with the intervention of assembly members, said article of use is characterized in that: each of said assembly members comprises a first fold line, a second fold line, a first region and a second region defined by said first fold line and said second fold line, and a third region defined together with said second regions by means of said second fold line, wherein said second region overlaps said first region and said third region overlaps said second region; said third region joins said first associated fastening member; said first region joins said first associated lateral zone; and an arrangement of adhesive spots is formed between said second region and said third region for temporarily fixing said second region in said third region; wherein said arrangement of adhesive points is formed so that it overlaps said first associated fastening member.