JP3530233B2 - Diapers and diaper manufacturing methods - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved diaper for babies or adults and a method for manufacturing diapers.

[0002]

2. Description of the Related Art Conventionally, a diaper of this type is shown in FIG.
And as shown in FIG. FIG. 18 is a plan view of a conventional diaper 1, and FIG. 19 is an exploded perspective view of a part of the diaper 1 taken along the center line along the longitudinal direction. The diaper 1 is, for example, a disposable paper diaper or the like, and includes a surface material 2, an absorbent material 3, and a back surface material 4, as shown in FIGS. 18 and 19. Here, the surface material 2 is formed of, for example, a cloth having good water permeability. Further, the absorbent material 3 arranged below the surface material 2 in the figure is for absorbing urine or the like that has permeated through the surface material 2 and collecting the urine or the like inside the diaper 1. Further, the back surface material 4 which is disposed below the absorbent material 3 in the drawing and is arranged so as to sandwich the absorbent material 3 together with the surface material 2 is formed of a material having a good waterproof property. The urine, etc. absorbed in the product is prevented from leaking to the outside.

The surface material 2 and the absorbent material 3 constituting the diaper 1 are adhered by a surface material-absorbent material bonding adhesive. In addition, the back material 4 and the absorbent material 3 which compose the diaper 1
Are bonded with a back surface material-adsorbent bonding adhesive.

By the way, as shown in FIG. 18, a diaper 1
Has a substantially rectangular shape as a whole, and the crotch part B part formed continuously from the part of the region A in the upper part of the diaper 1 in the figure has its both ends largely rounded toward the inside. It has been cut. And the area C is
The crotch portion B is formed so as to be integrally connected.

When using such a diaper 1,
First, the surface of the crotch portion B of the diaper 1 on the surface material 2 side is accurately brought into contact with the user's crotch portion. Then, after that, the upper part A and the lower part C on the surface material 2 side of the diaper 1 are brought into close contact with the body of the user or the like. After that, by fixing the entire diaper 1 with, for example, a diaper cover or the like, the diaper 1 can be worn by the user.

Further, as described above, the crotch portion B of the diaper 1 is rounded inward on both sides, as described above, so that the base of both feet of the user is thick and the crotch is narrow. Even so, the diaper 1 can be closely attached to the user's crotch without dug.

[0007]

However, such a diaper 1 has the following problems. That is, since the crotch width of both feet of the user who uses the diaper 1 varies from person to person, it is difficult to determine an appropriate radius when the crotch portion B of the diaper 1 is cut into a round shape. It was

That is, when the crotch part B of the diaper 1 is cut with a certain radius, for those who have a large base of both feet and a narrow crotch width, the crotch part B of the diaper 1 is dumb. , The diaper 1 feels uncomfortable to wear. On the other hand, for a person with narrow bases of both feet and a large crotch width, the radius is too large, so that the crotch width cannot be completely covered and the wearing feeling of the diaper 1 is deteriorated.

In order to solve such a problem, it is possible to manufacture various kinds of diapers by changing the radius to be cut according to the crotch width of both feet of the diaper user, but in the small-quantity multi-product production. However, there arises a problem that the manufacturing cost becomes too high. Therefore, in the conventional diaper 1, it is difficult to freely change the radius according to the crotch width of the user's legs while suppressing the manufacturing cost. For this reason, there is a problem that the user feels uncomfortable to wear.

Further, at the time of manufacturing, it is necessary to cut the crotch part B and discharge it, so that unnecessary materials are generated.
Therefore, an extra step of collecting this unnecessary material is required on the manufacturing line. Further, the yield rate is deteriorated due to the provision of this step, which is a problem. Furthermore, the cost increase associated with the disposal of the unnecessary material itself has been a problem.

Further, since the both ends of the crotch portion B of the diaper 1 are largely rounded inward toward the inside, the waterproof backing material 4 constituting the diaper 1 is correspondingly cut. It will be cut. For this reason,
There has been a problem that the absolute waterproof area of the diaper 1 itself is also reduced.

That is, in the case of a person with narrow legs and a wide crotch width, the crotch part B of the diaper 1 cannot sufficiently cover the crotch width, so that the diaper 1 slightly moves when the both legs are moved. And the movement of such a diaper 1 is
Makes it easy for leaks such as urine to leak to the outside.

In view of the above points, the present invention makes it possible to improve the wearing feeling even when worn by persons having different crotch widths at the crotch part, and to improve the waterproofness of the crotch part. It is another object of the present invention to provide a diaper and a method for manufacturing a diaper, which does not require a high cost and also minimizes the generation of unnecessary materials during manufacturing.

[0014]

According to the present invention, the above object is to provide a water-permeable surface material, a waterproof back material, and
In a diaper provided with an absorbent material for absorbing urine, etc. disposed between the surface material and the back material, the crotch portion of the surface material and the back material can be adjusted according to the user's crotch. A crotch adjusting means is provided , and the crotch adjusting means is
Inward from both side edges of the surface material and the back surface material.
It is characterized in that it is a cutting guide formed to a fixed length
It is achieved by diapers .

Preferably, the absorbent material comprises an absorbent material body and a housing member for housing the absorbent material body.

[0016] Further, preferably, the width of the crotch portion of the absorbent material is narrowed in a rounded shape as compared with other portions.

Further, it is preferable that the width of the crotch portion of the absorbent body is narrowed in a rounded shape as compared with the other portions.

[0018]

Preferably, the crotch adjusting means is a cutting guide portion formed to have a constant length from both side edge portions of the accommodation member for the front surface material, the back surface material and the absorbent material toward the inside.

Also, preferably, the cutting guide portion is a perforation.

Further, preferably, an adhesive for directly or indirectly adhering the surface material and the back surface material to the portion corresponding to the crotch area of the surface material and the back surface material or the area corresponding to the crotch area of the accommodating member. Has been applied.

According to the present invention, the above object is to accommodate an absorbent material for absorbing urine or the like between a water-permeable surface material and a waterproof back surface material, and Each of these surfaces is adhered to the absorbent material, and further, an adhesive for directly adhering the front surface material and the back surface material is separately applied to the crotch portion of the front surface material and the back surface material, so that these surfaces The material and the back material are bonded together, and the front surface
According to the user's crotch, adjust the crotch part of the back and back materials.
A crotch adjusting means capable of knotting is provided, and the crotch adjusting means is
From both side edges of the surface material and the back surface material to the inside
It is characterized in that it is a cutting guide part formed to a constant length
It is achieved by the method for manufacturing a diaper.

According to the present invention, the above object is to arrange a plurality of accommodating members on the front surface and the back surface of the absorbent body so as to sandwich the absorbent body, and press the accommodating members to the absorbent body. To form an absorbent material for absorbing urine and the like, and thereafter, the absorbent material is housed between a water-permeable surface material and a waterproof back surface material. Then, the absorbent member is attached to the crotch portion of the accommodation member on the front surface and the accommodation member on the back surface of the absorbent member,
Adhesives for bonding the accommodation member on the front surface and the accommodation member on the back surface of these absorbents are separately applied , and
Adjustable crotch on the corresponding part according to the user's crotch
Means is provided, and the crotch adjusting means is provided with the surface material and the back surface.
Formed in a constant length from both edges of the face material inward
It is achieved by a method for manufacturing a diaper, which is a cutting guide part .

[0024]

According to the above construction, since the diaper of the present invention is provided with the crotch adjusting means which can be adjusted according to the crotch width of the user in the crotch part of the front and back materials, Whether the crotch width is narrow or wide,
The width and the like of the crotch part of the diaper can be adjusted according to the width.

Further, an adhesive for directly adhering the surface material and the back surface material is separately applied to the crotch portion of the water-permeable surface material and the waterproof back material of the diaper. Alternatively, an adhesive for bonding the front surface accommodation member and the rear surface accommodation member of the absorbent material is separately applied to the crotch portions of the front surface accommodation member and the rear surface accommodation member of the absorbent material. Therefore, the constituent material of the absorbent material accommodated between the surface material and the back surface material, or the storage member or the urine accumulated in the absorbent material is removed from between the surface material and the back surface material or the storage member. It becomes difficult to leak.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the examples described below are suitable specific examples of the present invention, and therefore, various technically preferable limitations are given, but the scope of the present invention particularly limits the present invention in the following description. Unless otherwise stated, the present invention is not limited to these modes.

1 and 2 show a first embodiment of the diaper according to the present invention. FIG. 1 is a plan view thereof,
FIG. 2 is an exploded perspective view of a part of the diaper of FIG. 1 taken along the center line along the longitudinal direction. The diaper 10 according to the present embodiment is, for example, a disposable paper diaper, etc., and as shown in FIG. 2, the diaper 10 has a water-permeable surface material 12 for permeating urine of the user and the like. It has an absorbent material 13 having a high water absorbing property for storing urine and the like. The diaper 10 has a highly waterproof backing material 1 for preventing urine and the like accumulated in the absorbent material 13 from leaking from the diaper 1 to the outside.
It is equipped with 4.

The surface material 12 has a substantially rectangular shape as a whole, and is made of, for example, a non-woven fabric as the water-permeable surface material 12. This is because the surface material 12 is in direct contact with the user's skin and the like, so that it is preferable that the surface material 12 has good touch and water permeability. Therefore, as long as it is soft to the touch and has water permeability as described above, not only a non-woven fabric but also another fabric such as a perforated plastic film may be used.

The absorbent material 13 has a substantially gourd-shaped structure as a whole, and in FIG.
1 and F. Both ends of the region D form a gentle radius from the inside toward the outer edges on both sides.
Thus, the absorbent material 13 has a shape that reduces the amount of the absorbent material used at the upper end portion in the figure. This is because, as will be described later, it is not necessary to provide the absorbent 13 for the portion where urine or the like does not permeate when the diaper 10 is used, and the amount of the absorbent 13 used. This is because the cost can be reduced by reducing

Unlike the region D, the both ends of the crotch portion E1 following the region D form a gentle radius from the outside to the inside. As will be described later, the crotch portion E is a portion that comes into contact with the user's crotch when using the diaper 10 described above, so that a radius of curvature is constant according to the crotch width of both legs of the user. It is provided. The absorbent material 13 is different from the area D and is formed of a material for accumulating urine or the like that has permeated the surface materials 12 on both sides, for example, cotton pulp, absorbent paper, polymer water absorbent material, or the like. Has been done.

Similar to the front surface member 12, the rear surface member 14 has a substantially rectangular shape as a whole, and is formed of, for example, a plastic film as the waterproof rear surface member 14. This is because urine or the like that has permeated from the surface material 12 and collected in the absorbent material 13 does not leak to the outside, and is not limited to the plastic film as long as it has excellent waterproofness.

By the way, the diaper 10 is manufactured as follows. First, as shown in FIG. 2, the front surface material 12 and the back surface material 14 are bonded to the absorbent material 13 so as to sandwich the absorbent material 13 therebetween. That is, the surface material 12 and the absorbent material 13 are bonded and fixed by an adhesive material 16 for bonding the surface material-absorbent material, for example, an adhesive such as a hot melt adhesive or synthetic rubber. On the other hand, the back surface material 14 and the absorbent material 13 are
The absorbent bonding adhesive 17, for example, a hot-melt adhesive or an adhesive such as synthetic rubber is used for adhesion and fixing.

After that, perforations 15a and 15b as adjustable crotch adjusting means according to the crotch width of the user are shown at positions corresponding to the area E1 of the front surface material 12 and the rear surface material 14 of the diaper 10. It is provided as in 1. That is, the perforations 15a and 15b are formed so as to extend inward from both side edges of the front surface material 12 and the rear surface material 14 by a predetermined distance.
As shown in FIG. 2, the perforations 15a and 15b may be provided in advance before the front surface material 12 and the back surface material 14 are bonded and fixed with the absorbent material 13 in between.

Next, a method of using the diaper 10 will be described with reference to FIGS. 1 and 2. First, the surface material 1 of the diaper 10
The diaper 10 is applied to the user's body so that the crotch part E1 of the non-woven fabric surface 2 is in contact with the user's crotch part. At this time, if the crotch width of the user's legs and the width of the crotch portion E of the absorbent material 13 of the diaper 10 are the same, all the perforations 15a and 15b are cut. On the other hand, the crotch width of both legs of the user is the crotch portion E of the absorbent material 13 of the diaper 10.
If the width is smaller than the width, the perforations 15a and 15b are cut so as to fit the crotch width of both feet of the user.

Thus, for example, the user himself adjusts so that the crotch width of the user's legs and the width of the crotch portion E1 of the diaper 10 become the same. After this adjustment is completed, the remaining parts of the diaper 10, areas D and F, are brought into close contact with the user's body. Then, by fixing the entire diaper 10 with, for example, a diaper cover or the like, the diaper 10 is firmly attached to the user.

By using the diaper 10 of this embodiment as described above, the following actions and effects are produced. Since the perforated portions 15 of the diaper 10 are provided with perforated lines 15a and 15b as adjustable crotch adjusting means according to the crotch width of the user, the portion where the absorbent material 13 is removed is used. The user or the like can adjust the width to fit the crotch width of both legs of the wearer. Therefore, even if there is a difference in the crotch width of the user, the diaper 10 can be worn equally well. Further, it is not necessary to manufacture many kinds of diapers in consideration of the difference in crotch width of the user, so that the cost can be reduced.

The crotch width of both feet of the user is 1
When the width of the crotch portion E1 is 0, the perforations 15a and 15b as the adjusting means are left, and the waterproof backing material 14 is also left accordingly. Then, the waterproof effect is further enhanced by the remaining back surface material 14. Further, when the user is an active person, by narrowing the width of the crotch part E1 of the diaper 10 and the like, the resistance to the crotch is reduced and it becomes easier to act. Even in such a case, the diaper 10 can be finely adjusted such as the width of the crotch portion E1 of the diaper 10.

3 to 6 show a modified example of this embodiment. That is, in FIGS. 3 to 6, the diapers 20, 3
Crotch part E which is a part of 0, 40 and 50
The top views of 2, E3, E4 and E5 are shown respectively. This is because the overall structure is the same as that of the diaper 10 described above, and therefore the difference from that is made clear. Specifically, as shown in FIGS. 3 to 6, the diaper 2
0, 30, 40 and 50 perforations 25a,
25b, 35a, 35b, 45a, 45b and 55a,
Each shape of 55b is different from the perforations 15a and 15b of the diaper 10 described above, as shown in each drawing.

That is, the perforations 25a, 25b and 35a, 35b of the diapers 20 and 30 of FIGS.
Unlike the perforations 15a and 15b of the diaper 10 described above,
The absorbers 23 and 33 are provided in a shape substantially along the radiuses 23a, 23b and 33a, 33b formed so as to be hollowed inside.

Further, the perforations 45 of the diaper 40 shown in FIG.
a and 45b have a substantially rectangular shape in a plan view.
And perforation 55a, 55b of the diaper 50 of FIG.
In the figure, two are arranged in parallel in the horizontal direction.

FIG. 7 shows a second embodiment of the diaper of the present invention. Specifically, FIG. 7 is an exploded perspective view of a part of the diaper 110 cut along the center line in the longitudinal direction. In FIG. 7, the portions denoted by the same reference numerals as those in the first embodiment have the same configuration, and therefore duplicated description will be omitted, and different points will be mainly described. Unlike the first embodiment described above, the absorbent material 113 of this embodiment is the same as the absorbent material 113.
The absorbent body main body 113c plays the role of a core, and the storage members 113a and 113b are arranged so as to be sandwiched from both the front surface side and the back surface side of the absorbent body main body 113a.

The absorbent body 113c is made of, for example, pulp, a combination of pulp and a polymeric water absorbent material, or a combination of these with absorbent paper or the like. The crotch portion of the absorbent body 113c forms a gentle radius from the outside to the inside, as in the first embodiment. Then, the accommodating members 113a, 113 arranged so as to sandwich the absorbent body 113c.
b also has the same shape as the absorbent body 113c.
The accommodating members 113a and 113b are formed of, for example, tissue paper called absorbent paper or binding paper. The accommodating members 113a and 113b are arranged on both sides of the front surface and the back surface of the absorbent body 113c because the absorbent body 113 functions as a core of the absorbent 113.
This is to ensure that c is held.

The process for manufacturing this diaper 110 is almost the same as that of the first embodiment, except that the surface material 10 and the back material 14 are made.
The following steps are added before bonding the. That is, after the absorbent body 113c is housed between the housing members 113a and 113b and the absorbent body 113c is firmly sandwiched, the housing members 113a and 113b are attached to the absorbent body 113c by, for example, embossing. Crimp. Then, similarly to the first embodiment described above, the front surface material 12 and the back surface material 14 are bonded so as to sandwich the absorbent material 113 manufactured in this way. Specifically, the surface material 12
And the accommodating member 113a are bonded with an adhesive, while the backing material 14 and the accommodating member 113b are bonded with an adhesive. In this way, the absorbent body 113c is inserted into the housing member 113
By sandwiching between a and 113b, the absorbent material 113 can function more effectively as compared with the first embodiment. In addition, the holding force of the absorbent body 113c and the diffusibility of urine and the like can be improved by crimping the housing members 113a and 113b to the absorbent body 113c by embossing or the like. The adhesive used here is the same as in the first embodiment.

The perforations 15a in this embodiment are
15b may be not only the shape shown in FIG. 7 but also the perforations shown in the modification of the first embodiment. Specifically, the perforations 25a and 25b in FIG. 3 and the perforations 3 in FIG.
5a and 35b, perforations 45a and 45b of FIG. 5, and FIG.
Perforations 55a and 55b.

FIG. 8 shows a third embodiment of the diaper of the present invention. Specifically, FIG. 8 is an exploded perspective view of a part of the diaper 120 cut along the center line in the longitudinal direction. In FIG. 8, the portions denoted by the same reference numerals as those in the second embodiment have the same configuration, so duplicated description will be omitted, and different points will be mainly described. Similar to the second embodiment described above, the absorbent body 123c forms a gentle radius from the outside to the inside. But,
Unlike the above-described second embodiment, the absorbent body 1 of this embodiment is different.
The accommodating members 123a and 123b for accommodating 23c are generally rectangular in shape, and are not rounded from the outside to the inside.

The manufacturing process of the diaper 120 according to this embodiment is the same as that of the second embodiment. Also, the absorbent body 12
The materials and the like that form 3c and the containing members 123a and 123b are the same as in the second embodiment. Since the housing members 123a and 123b are configured in this manner, it is not necessary to cut the housing members 123a and 123b into a round shape. Therefore, the housing members 123a, 12
3b, for example, the problem of processing unnecessary members such as the cut tissue paper after the tissue paper is cut can be eliminated. Further, since it is not necessary to install a machine for removing unnecessary materials such as the tissue paper, it is possible to improve the yield and reduce the number of machine troubles.

The perforations 15a in this embodiment are
15b may be not only the shape shown in FIG. 8 but also the perforations shown in the modification of the first embodiment. Specifically, the perforations 25a and 25b in FIG. 3 and the perforations 3 in FIG.
5a and 35b, perforations 45a and 45b of FIG. 5, and FIG.
Perforations 55a and 55b.

FIGS. 9 and 10 show a fourth diaper of the present invention.
The example of is shown. Specifically, FIG. 9 shows a diaper 6
FIG. 10 is an exploded perspective view of a part of 0 cut along the center line in the longitudinal direction, and FIG. 10 is a plan view showing a part of the diaper 60. In FIGS. 9 and 10, the portions denoted by the same reference numerals as those in the first embodiment have the same configuration, and therefore duplicated description will be omitted, and different points will be mainly described. In the first embodiment, the surface material 12 and the back material 14 are adhered to the absorbent material 13 with an adhesive so that the absorbent material 13 having the cut 13a at the crotch portion is sandwiched therebetween. In the manufacturing method of, the cut portion 13a of the absorbent 13 is
The difference is that the adhesive 68 is separately applied corresponding to the perforations 15a and 15b provided on the.

Specifically, the adhesive application portion 68 shown by hatching in FIGS. 9 and 10 is composed of three application portions, and a slight interval is provided between each application portion. There is. And these adhesive application parts 6
In No. 8, since the absorbent material 13 is cut inwardly in a round shape, it spreads so as to substantially cover the portion 69 where only the front surface material 12 and the back surface material 14 are left. In addition, since the applied portion is widened in this way, the perforations 15a, 15
Also on b, the adhesive is applied.

The adhesive to be applied is, for example, a hot melt adhesive or an adhesive such as synthetic rubber. The application pattern of the adhesive may be the line pattern shown in FIG. 11 (a), the coating pattern (solid coating) shown in FIG. 11 (b), or the spiral pattern shown in FIG. 11 (c). Applicable.

By providing the adhesive application portion 68 in this manner, the gap between the front surface material 12 and the rear surface material 14 which occurs when the front surface material 12 and the rear surface material 14 are adhered only to the absorbent material 13 is eliminated. be able to. By eliminating this gap, constituent materials of the absorbent material 13, urine accumulated in the absorbent material 13, and the like are less likely to leak to the outside.

When using the diaper 60, if the perforations 15a and 15b are cut in accordance with the size of the crotch of the user, etc., the cut material is stored in the constituent material of the absorbent material 13 or the absorbent material 13. The urine collected may leak out.
However, in this embodiment, even on the perforations 15a and 15b,
Since the adhesive application part 68 is provided, the diaper 60
When using, even if the perforations 15a and 15b are cut,
After the start of use, the constituent material of the absorbent material 13 and urine accumulated in the absorbent material 13 do not leak to the outside thereafter.

12 to 15 show a modification of this embodiment. 12 to 15, the diapers 70 and 8 are shown.
It is a top view showing a part of 0, 90, and 100. 12
In FIG. 15, the portions denoted by the same reference numerals as those in the fourth embodiment have the same configuration, and thus duplicated description will be omitted, and different points will be mainly described. The shape and the like of the adhesive application portion 68 shown in the above-mentioned fourth embodiment are not limited to those shown in FIGS. 9 and 10. That is, if the absorbent material 13 covers the portion that is cut inward in a round shape and is on the perforations 15a and 15b, another shape, for example, as shown in FIGS. The agent-applied portions 78, 88, 98, 108 may be formed.

By the way, in the above-described fourth embodiment and its modification, the perforations 15a and 15b shown in FIGS. 9, 10, and 12 to 15 have only one shape.
However, in the fourth embodiment and its modification,
Not limited to this shape, the perforations 25a, 25b, 35 shown in FIGS. 3 to 6 showing a modification of the first embodiment.
Each shape of a, 35b, 45a, 45b and 55a, 55b may be used.

16 and 17 show fifth and sixth embodiments of the diaper of the present invention. Specifically, FIG.
17 is an exploded perspective view of a part of the diaper 130 cut along the longitudinal centerline, and FIG. 17 is also an exploded perspective view of a part of the diaper 140 cut along the longitudinal centerline. It is a figure. 16 and 17,
The parts denoted by the same reference numerals as those in the second and third embodiments have the same configuration, and therefore duplicated description will be omitted, and different points will be mainly described.

In the fifth embodiment shown in FIG. 16, unlike the second embodiment, the absorbent main body 113c and the accommodating member 113 are different from each other.
a-shaped cut portion formed in the crotch portion of a and 113b so as to be hollowed inward, and perforation 15
Adhesive coating portions 138 are provided corresponding to a and 15b. Specifically, similar to the above-mentioned fourth embodiment,
The adhesive application portion 138 shown by hatching in FIG.
It is composed of three coating portions, and a slight gap is provided between the respective coating portions. Since the absorbent material 113 is cut inward in a rounded shape, these adhesive-applied portions 138 extend so as to substantially cover the portion 139 where only the front surface material 12 and the back surface material 14 are left. Further, since the applied portion is spread in this way, the adhesive is applied even on the perforations 15a.

The manufacturing process other than the adhesive coating process for providing the adhesive coating portion 138 and the adhesive used here are the same as those in the second embodiment.
The adhesive applied is the same as in the fourth embodiment. In this embodiment, the perforations 15a and 15b shown in FIG. 16 have only one shape. However, the present embodiment is not limited to this shape, and the perforation lines 25a, 25b, 35a, 35b, 45a, 45b and 55a shown in FIGS. Each shape of 55b may be used. Furthermore, the shape of the adhesive application portion is not limited to that shown in FIG.
Each shape of the adhesive application portions 78, 88, 98 and 108 shown in FIGS. 12 to 15 showing a modification of the above-mentioned fourth embodiment may be adopted.

Unlike the third embodiment, the sixth embodiment shown in FIG. 17 has a rounded cut portion formed in the crotch portion of the absorbent body 123c so as to be hollowed inward. An adhesive application portion 148 is provided corresponding to the perforations 15a and 15b. Specifically, as in the fifth embodiment described above, the adhesive application portion 148 indicated by hatching in FIG. 17 is composed of three application portions,
There is a slight gap between each coated portion. Since only the absorbent body 123c is cut inward in the adhesive application portion 148, the portions 149 of the housing members 123a and 123b arranged inside the front surface material 12 and the rear surface material 14 are formed. It spreads to cover almost all. Then, this adhesive application portion 14
The other manufacturing steps except the adhesive applying step for providing 8 and the adhesive used here are the same as those in the third embodiment.

In this embodiment, the perforations 15a and 15b shown in FIG. 17 have only one shape.
However, the present embodiment is not limited to this shape, and the first
3 to 6 showing a modification of the above embodiment, the perforations 25a, 25b, 35a, 35b, 45a, 45 shown in FIGS.
Each shape of b and 55a, 55b may be used. Further, the shape of the adhesive application portion is not limited to that shown in FIG. 17, and the adhesive application portions 78, 88, 98 shown in FIGS. 12 to 15 showing a modified example of the above-described fourth embodiment. And 1
Each shape of 08 may be used.

[0060]

As described above, according to the present invention, it is possible to improve the wearing feeling even when worn by persons having different crotch widths, and it is possible to improve the waterproofness of the crotch area. It is another object of the present invention to provide a diaper and a method for manufacturing a diaper, which does not require a high cost and also minimizes the generation of unnecessary materials during manufacturing.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of a diaper according to the present invention.

FIG. 2 is an exploded perspective view of a part of the diaper of FIG. 1 taken along the center line along the longitudinal direction.

FIG. 3 is a partial plan view showing a modified example of the diaper of FIG.

FIG. 4 is a partial plan view showing another modified example of the diaper of FIG.

FIG. 5 is a partial plan view showing another modified example of the diaper of FIG.

FIG. 6 is a partial plan view showing another modified example of the diaper of FIG.

FIG. 7 is an exploded perspective view of a part of the diaper according to the second embodiment of the present invention cut along a center line along the longitudinal direction.

FIG. 8 is an exploded perspective view of a part of the diaper according to the third embodiment of the present invention cut along a center line along the longitudinal direction.

FIG. 9 is an exploded perspective view of a part of the diaper according to the fourth embodiment of the present invention taken along a center line along the longitudinal direction.

FIG. 10 is a plan view showing a part of the diaper of FIG.

FIG. 11 is a diagram showing an adhesive application pattern.

12 is a partial plan view showing a modified example of the diaper of FIG.

13 is a partial plan view showing another modified example of the diaper of FIG.

FIG. 14 is a partial plan view showing another modified example of the diaper of FIG.

FIG. 15 is a partial plan view showing another modified example of the diaper of FIG.

FIG. 16 is an exploded perspective view of a part of the diaper according to the fifth embodiment of the present invention cut along a center line along the longitudinal direction.

FIG. 17 is an exploded perspective view of a part of the diaper according to the sixth embodiment of the present invention, taken along the center line along the longitudinal direction.

FIG. 18 is a plan view of a conventional diaper.

FIG. 19 is an exploded perspective view of a part of a conventional diaper cut along the center line along the longitudinal direction.

[Explanation of symbols]

10 diapers 12 Surface material 13 Absorbent 14 Back material 15a Perforation 15b Perforation Area D E1 crotch part F area

Continuation of the front page (56) References JP-A-4-2344 (JP, A) JP-A-2-7955 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61F 13 / 15-13/84

Claims (11)

(57) [Claims] 1. A diaper comprising a water-permeable surface material, a waterproof back material, and an absorbent material disposed between the surface material and the back material for absorbing urine and the like, wherein: A crotch adjusting means that can be adjusted according to the user's crotch is provided in the portion corresponding to the crotch of the surface material and the back material, and the crotch adjusting means faces inward from both side edges of the surface material and the back material. A diaper characterized in that it is a cutting guide portion formed into a constant length. 2. The diaper according to claim 1, wherein the absorbent material is composed of an absorbent material body and a housing member for housing the absorbent material body. 3. The structure in which the width of the portion corresponding to the crotch portion of the absorbent material is narrowed in a rounded shape as compared with other portions.
The diaper described in 1 . 4. The width of a portion of the absorbent material corresponding to the crotch portion is different from that of the other portion.
Claim that it has a configuration that is narrowed in an arc shape compared to the minutes
The diaper described in 2. 5. A diaper according to any one of the absorbent claims width of Koguri corresponding portion of the body has a reduced width configurations in a round shape than other portions 2 or claim 4. Wherein said Koguri adjusting means the surface material, wherein a rear material and the cutting guide portion formed in a predetermined length from the both side edges toward the inside of the housing member of absorbent material The diaper according to claim 2, claim 4, or claim 5 . Characterized in that wherein said cutting guide portion is a perforation, diaper according to claim 1 or claim 3. 8. The cutting guide is perforated
Claim 2, Claim 4, Claim 5, Claim 6 characterized
The diaper described in any of. 9. Corresponding crotch of the surface material and the back surface material
Part, or the part corresponding to the crotch of the accommodating member, these surfaces
Adhesive for directly or indirectly bonding the material and the back material
Claim that is characterized in that it is applied
Any of 2, claim 4, claim 5, claim 6, and claim 8
The diaper described in the crab. 10. An absorbent material for absorbing urine or the like is housed between a water-permeable surface material and a waterproof back material, and the surface material and the back material are bonded to the absorbent material, respectively. Further, in the crotch portion of the surface material and the back surface material,
By applying an adhesive agent for directly bonding the surface material and the back surface material separately, the surface material and the back surface material are bonded together, and used for the crotch portion of the above surface material and the back surface material. A crotch adjusting means that can be adjusted according to a person's crotch is provided, and the crotch adjusting means is formed with a constant length from both side edges of the surface material and the back surface material toward the inside. A method for manufacturing a diaper, characterized in that 11. A plurality of accommodating members are disposed on the front surface and the back surface of the absorbent body so as to sandwich the absorbent body, and the accommodating members are crimped to the absorbent body to absorb urine and the like. After forming the absorbent material, the absorbent material is housed between the water-permeable surface material and the waterproof back surface material, the surface material and the back surface material are respectively bonded to the absorbent material, and the absorbent material is absorbed. Adhesives for bonding the front-side accommodation member and the back-side accommodation member of the absorbent material are separately applied to the crotch-corresponding portions of the front surface accommodation member and the rear-side accommodation member, and the crotch-corresponding portion is also applied. A crotch adjusting means that can be adjusted according to the user's crotch is provided in the cutting, and the crotch adjusting means is formed with a constant length from both side edges of the surface material and the back surface material toward the inside. A diaper characterized by being a guide Manufacturing methods.