JP2003116915A - Throw-away diaper having fastening tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide merchandise which hardly permits slipping of side flaps and fastening tapes from between the fingers when a user picks up these with fingers in wearing a throw-away diaper. SOLUTION: This throw-away diaper a throw-away diaper which has a liquid permeable top sheet 1, a liquid impermeable back sheet and an absorber disposed between both of these sheets and is provided with the side flaps between both side edges in the longitudinal direction of the absorber, in which at least portions of the side flaps and at least portions of the fastening tapes are intermittently provided with a plurality of recessed and deformed sections and these deformed sections have the same shape and the central points thereof coincide with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber provided between the two sheets. The invention relates to a disposable diaper in which a side flap is provided and a fastening tape having fixing means for fixing the wearer to a wearer is arranged.

[0002]

2. Description of the Related Art A diaper for use is Japanese Patent Publication Sho-52-402.
Like the deployable diaper disclosed in Japanese Patent No. 67,
It has a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent body that is placed between these sheets, and uses a liquid-permeable topsheet for excrement such as urine excreted during wearing. It is used as a liquid-impermeable backsheet to prevent excrement from leaking out of the absorbent wearable article through an absorbent body, and the absorbent article can be used depending on its use. Various forms have been devised, such as having an elastic elastic member and a fastener so that it can be suitably used as.

These diapers for use are now widely used for infants, adults and adult incontinence persons who cannot self-regulate excretion of urine and feces, and a liquid-permeable top sheet, and The basic structure is a liquid-impermeable backsheet sandwiching an absorber, and an integrally molded product that is equipped with elastic elastic members and fasteners such as fastening tape is widely used. There is.

[0004]

The fastening tapes provided on these disposable diapers are provided on the back sheet surface of the diaper by providing a hook member on a part thereof or a pressure sensitive adhesive member on a part thereof. The diaper is worn by making it possible to repeatedly attach and detach it with the adherend, and the main material that makes up the fastening tape is often a film or non-woven sheet made of a thermoplastic resin such as polypropylene. .

For the purpose of further reducing diaper rash and stuffiness during wearing, the liquid impermeable backsheet is limited to the vicinity of the lower part of the absorbent body, and the side flaps are made of a thermoplastic resin such as polypropylene. Non-woven sheet,
Alternatively, a laminate of non-woven fabric sheets has also been devised.

In this case, when the diaper is worn, when the side flaps of the diaper are picked up with fingers to spread the diaper, the side flaps are a laminate of a film made of a thermoplastic resin and a non-woven fabric sheet, or non-woven fabric sheets. Since it is a laminated body, the surface of the side flap itself is smooth, so that the side flap slips out between the fingers, so that the side flap may not be opened as desired, or the side flap may have to be repeatedly picked and expanded.

Further, when the diaper is worn, the fastening tape is picked up with fingers at the stage of fixing the diaper to the wearer so as to cover the waist of the wearer while pulling it and overlap with the side flap portion around the other waist. The fastening tape may be fixed to the adhered part on the back sheet surface, but at this time, depending on the person, the fastening tape may be pulled with an excessive force, or a larger force may be applied to the stopper when the wearer moves. In some cases, the fastening tape slipped out from between the fingers at this time, and it was not possible to fix it to the adherend as expected.

The object of the present invention is to pick up and spread the side flaps with fingers in order to wear the so-called tape type diaper mentioned above, or to pick up the fastening tape with fingers.
An object of the present invention is to provide a product in which, when pulled, these do not easily slip out from between fingers and are easy to wear in a diaper.

[0009]

Means for Solving the Problems The present invention for solving the above-mentioned problems of the conventional diaper for use includes the following inventions. (1) Use in which a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber provided between these sheets are provided, and side flaps are provided at both longitudinal edges of the absorber. In a diaper, at least a part of the side flap is provided with a plurality of concave deformation portions intermittently along the longitudinal direction of the diaper to be used,
Further, in the one waist region of the disposable diaper, the disposable diaper is folded in two via the crotch region, and in order to be fixedly mounted on the wearer, a fixing means for the other waist region is provided. A diaper for use, wherein a fastening tape having the diaper is provided, and a plurality of concave deformed portions are intermittently provided along a longitudinal direction of the diaper for use in the holding portion of the fastening tape.

(2) A plurality of intermittent concave deformed portions provided on at least a part of the side flaps along the longitudinal direction of the disposable diaper, and an intermittent portion provided on the holding portion of the fastening tape. The plurality of typical concave deforming portions have substantially the same shape, and the central points of the concave deforming portions provided on the side flaps and the concave deforming portions provided on the fastening tape coincide with each other. The disposable diaper described in (1) above.

(3) The fastening means for fixing the fastening tape is a hook member, and is attached to the backsheet surface in the other waist region opposite to the waist region in which the fastening tape is arranged in the diaper in use. The adhesive material that can be physically engaged with the hook material is provided so that the hook material can be repeatedly attached and peeled off, (1) or (2) above A disposable diaper as described in.

(4) The fastening means for the fastening tape is a pressure-sensitive adhesive tape, and the backsheet surface in the other waist region opposite to the waist region in which the fastening tape is arranged in the diaper for use. The diaper for use according to item (1) or (2) above, further comprising an adherend to which the pressure-sensitive adhesive tape can be repeatedly applied and peeled off.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The disposable diaper of the present invention is provided with a plurality of concave deformed portions intermittently along at least a part of a side flap along the longitudinal direction of the diaper, and in one waist region of the diaper. The diaper is folded in half through the crotch region, and a fastening tape serving as a fixing means for the other waist region is provided for attaching and fixing the diaper to the wearer. A plurality of concave deformation portions are provided intermittently along the direction.

With such a structure, when the side flap is picked up with a finger when the diaper of the above structure of the present invention is worn, the fingertip is caught by the concave deformed portion, and the deformed portion so far is present. The side flaps are less likely to slip out from between the fingers as compared with the side flap formed of a laminate of a film made of a non-thermoplastic resin and a non-woven sheet or the laminate of non-woven sheets.

Also, when the fastening tape is picked up with fingers when the diaper is fixed to the wearer and pulled, the fingertip is caught in the concave deformed portion, and the film is made of a thermoplastic resin having no deformed portion so far. Alternatively, the fastening tape is less likely to slip out between the fingers as compared with the fastening tape made of a non-woven sheet.

The diaper for diapers of the present invention is provided on at least a part of the side flap, and has a plurality of intermittent concave deformed portions along the longitudinal direction of the diaper and an intermittent portion provided on the holding portion of the fastening tape. Specifically, the plurality of concave deforming portions have substantially the same shape, and the central points of the concave deforming portions provided on the side flaps and the concave deforming portions provided on the fastening tape coincide with each other.

With such a structure, when the fastening means provided on the fastening tape is a hook material and the side of the side flap facing the hook material is a nonwoven fabric sheet, the concave deformed portion of the fastening tape and the concave shape of the side flap are formed. The deformed parts match like keys and keyholes, an appropriate engagement force is generated between the hook material and the non-woven sheet, and the effect that the hook material and side flaps of the fastening tape are temporarily fixed,
It is not necessary to arrange an adhesive material or the like as a temporary fixing means before using the diaper.

On the other hand, when the fixing means provided on the fastening tape is a pressure-sensitive adhesive material, it is not necessary that the concave deformed portion of the fastening tape and the concave deformed portion of the side flaps match, but they do. But there is no problem.

In the present invention, as the liquid-permeable top sheet, a non-woven fabric made of polyethylene, polypropylene, polyester or other synthetic fibers made of a thermoplastic resin as a raw material and subjected to a hydrophilic treatment is used.

In the present invention, the liquid-impermeable back sheet is a liquid-impermeable polyethylene sheet, preferably a polyethylene sheet having micropores, or a sheet obtained by adding a filler to a thermoplastic resin and stretching. A liquid impermeable sheet having a high moisture permeability is used. When such a sheet is used, stuffiness is improved and a comfortable wearing feeling is obtained. Furthermore, it is also possible to use a sheet having a laminated structure in which a nonwoven fabric is attached to the outer surface of such a sheet.

In the present invention, any absorber can be used as long as it is used in an absorbent article such as a normal diaper. That is, a combination of cotton-like pulp and super absorbent polymer (SAP),
Further, those to which heat-sealing fibers are added can be used, and those which are entirely wrapped with a hydrophilic sheet such as tissue are preferable. In addition, S on one side of the hydrophilic sheet
With a layer of AP, SA between two hydrophilic sheets
It is also possible to use a sheet-shaped absorber such as one having P sandwiched. The shape of the absorber may be an hourglass shape or a rectangular shape, but the hourglass shape provides better fit.

In the present invention, the side flaps can be formed from a nonwoven fabric made of synthetic fibers made of polyethylene, polypropylene, polyester or other thermoplastic resin as a raw material. Alternatively, the top sheet and the back sheet may be formed by laminating the portions extending outward from both side edges of the absorber. Further, the above-mentioned nonwoven fabric may be laminated and formed on the portion of the back sheet that extends outward from both side edges of the absorber.

The disposable diaper of the present invention preferably has a pair of three-dimensional gathers arranged along the longitudinal direction thereof. In the present invention, the three-dimensional gather can be formed of various materials. For example, it can be formed by using a breathable, water-repellent nonwoven fabric made of synthetic fiber made of polyethylene, polypropylene, polyester, or other thermoplastic resin as a raw material. Alternatively, JP-A-6
As disclosed in Japanese Patent Laid-Open No. 3-112706, a wide nonwoven fabric is used to form the side flaps,
The side flaps may be formed and the three-dimensional gathers may be formed at the portions that extend inside the diaper. Furthermore, as disclosed in JP-A-63-105102,
A wide top sheet may be used, and the three-dimensional gathers may be formed at portions extending from both side edges of the absorber of the top sheet.

In the present invention, a stretchable elastic member is arranged in the tip end region of the free portion of the three-dimensional gather. As the stretchable elastic member, the stretchable elastic member such as a natural or synthetic urethane thread, a rubber thread, a flat rubber or the like which is usually used in diapers can be used as it is, and the stretchable elastic member is stretched. In this state, it is placed in the tip region of the free portion, and is bonded and fixed with a hot melt adhesive or the like.

In the present invention, the stretchable elastic member can be arranged at the position of the leg opening. As the stretchable elastic member, the stretchable elastic member such as a natural or synthetic urethane thread, a rubber thread, a flat rubber or the like which is usually used in diapers can be used as it is, and the stretchable elastic member is stretched. In this state, it is placed in the tip region of the free portion, and is bonded and fixed with a hot melt adhesive or the like.

In the present invention, the fastening tape is formed by laminating a plurality of films, a non-woven fabric sheet, and an adhesive material, and at least a part of the fastening tape is adhesively fixed to the back sheet side of the side flap, and the fixed side facing end portion. Has a holding part.

In the present invention, as the fixing means provided on the fastening tape, a hook material or a pressure-sensitive adhesive material that can be physically engaged is used. When the hook material is used, the hook material is repeatedly formed on the backsheet surface. Since the loop material that can be attached and peeled is arranged as the material to be adhered, the diaper can be repeatedly attached and detached while being used.

On the other hand, in the present invention, when a pressure sensitive adhesive is used for the fixing means provided on the fastening tape,
Since the pressure-sensitive adhesive is repeatedly attached to the back sheet surface and the peelable adhered material is arranged, the diaper can be repeatedly attached and detached during use.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The diaper used in the present invention will be described below in detail with reference to the drawings, but the present invention is not limited thereto. FIG. 1 is a plan view showing a state in which a disposable diaper of the present invention is developed and viewed from the top sheet side. In FIG. 1, a diaper 1 to be used includes a liquid-permeable top sheet 2 and a liquid-impermeable back sheet 3
And a side flap 5 extending outward from both side edges of the absorbent body 4, and a pair of absorbent bodies 4 arranged between the two sheets. A three-dimensional gather 6 is arranged. Further, the three-dimensional gather 6 has a fixed portion 7 and a free portion 8 and is fixed to the diaper 1 by adhesion at the fixed portion 7. The free portion 8 has a three-dimensional gather elastic member 9 extending in the tip region thereof. It is arranged in a state. Further, the three-dimensional gather 6 is directed toward the center of the diaper 1 by using the free portion 8 and its longitudinally opposite ends are laid down on the upper surface of the diaper 1 to be used, and the diaper is used via the adhesive portion. It is adhesively fixed to the upper surface of 1.

FIG. 2 shows the disposable diaper 1 shown in FIG.
It is a cross-sectional view which shows a part of the state cut | disconnected along the -X 'line. In FIG. 2, a part of the fastening tape 12 is adhesively fixed to the backsheet side of the side flap 5 and folded back to the nonwoven fabric sheet 16 side of the side flap 5. Further, a plurality of intermittent side flap concave deforming portions 11 are provided in a part of the side flap 5, and in FIG. 2, one cross sectional shape thereof is shown.
Further, the hook material 17 is laminated on the fastening tape 12, and a part of the laminated body of the fastening tape 12 and the hook material 17 has a plurality of intermittent fastening tapes having substantially the same shape as the side flap concave deforming portion 11. A concave deforming portion 14 is provided, and one cross sectional shape thereof is shown in FIG. In addition, the side flap concave deformation portion 11 and the fastening tape concave deformation portion 1
The center points of 4 are coincident with each other, and the concave deformed portions are coincident with each other, so that an engaging force is generated between the nonwoven fabric sheet 16 and the hook member 17, and the fastening tape 12 is folded back to the nonwoven fabric sheet 17 side and temporarily fixed. .

FIG. 3 is a plan development view showing an example of one side flap of the disposable diaper shown in FIG. 1 and an attaching portion of the fastening tape. In FIG.
The fastening tape 12 is folded back to the nonwoven fabric sheet side of the side flap 5. In addition, a part of the side flap 5 is provided with a plurality of side flap concave deforming portions 11 which are intermittent along the longitudinal direction of the diaper over the entire length, and the fastening tape 12 has a side flap concave deforming portion. A plurality of intermittent fastening tape concave deformation portions 14 having substantially the same shape as the portion 11 are provided. Further, in the vicinity of the fastening tape gripping portion 13, the center points of the side flap concave deforming portion 11 and the fastening tape concave deforming portion 14 coincide with each other.

FIG. 4 is a plan development view showing another example of one side flap of the disposable diaper shown in FIG. 1 and a mounting portion of the fastening tape. In FIG. 4, the fastening tape 12 is folded back to the nonwoven fabric sheet side of the side flap 5. Further, a part of the side flap 5 is provided with a plurality of intermittent side flap concave deformable portions 11 in a portion where the fastening tape 12 is located along the longitudinal direction of the diaper and in the vicinity thereof, and the fastening tape 12 has a side flap. A plurality of intermittent fastening tape concave deformation portions 14 having substantially the same shape as the concave deformation portion 11 are provided. Further, in the vicinity of the fastening tape gripping portion 13, the center points of the side flap concave deforming portion 11 and the fastening tape concave deforming portion 14 coincide with each other.

FIG. 5 is a plan development view showing another example of one side flap of the disposable diaper shown in FIG. 1 and a portion to which the fastening tape is attached. In FIG. 5, the fastening tape 12 is folded back to the side flap 5 on the side of the non-woven fabric sheet. Further, a plurality of intermittent side flap concave deformation portions 11 (not shown) are provided in a region covered by a portion of the side flap 5 where the fastening tape 12 is folded back, and the fastening tape 12 includes A plurality of intermittent fastening tape concave deformation portions 14 having substantially the same shape as the side flap concave deformation portion 11 are provided. In the vicinity of the fastening tape gripping portion 13, the side flap concave deformation portion 11 and the fastening tape concave deformation portion 1 are also provided.
The center points of 4 coincide.

FIG. 6 is a plan development view showing another example of one side flap of the disposable diaper shown in FIG. 1 and a mounting portion of the fastening tape. 1 to 5
Although the shape of the fastening tape concave deformation portion 14 shown in Fig. 4 is rectangular, it may be elliptical as shown in Fig. 6, and in addition to this, rhombus, parallelogram, other shapes, product name logo mark, etc. The shape is not particularly limited as well as the depth of the concave shape. Although not shown in FIG. 6, the shape of the side flap concave deforming portion may also be an elliptic shape, and in addition to this, a rhombus,
A parallelogram, other shapes, a product name logo mark, or the like can be used, and the shape is not particularly limited together with the depth of the concave shape.

[0035]

According to the diaper of the present invention, at least a part of the side flap is intermittently provided with a plurality of concave deformed portions along the longitudinal direction of the diaper. When the flap is picked with a finger, the fingertip is caught in the concave deformed portion, and the side flap is unlikely to slip out from between the fingers.

According to the disposable diaper of the present invention,
The fastening part of the fastening tape is provided with a plurality of concave deformed portions intermittently along the longitudinal direction of the diaper.When the fastening tape is picked with a finger and pulled, the concave deformed portion catches the fingertips, and The fastening tape is hard to slip through.

According to the disposable diaper of the present invention,
A hook member that is provided on at least a part of the side flaps and that is intermittently aligned with the longitudinal direction of the diaper, and that is provided with a plurality of intermittently deformed concave portions provided on the holding portion of the fastening tape. An appropriate engaging force is generated between the non-woven fabric sheet and the non-woven fabric sheet, and the hook material and the side flaps of the fastening tape are temporarily fixed.

[Brief description of drawings]

FIG. 1 is a plan development view showing a state in which a disposable diaper of the present invention is viewed from a top sheet side.

FIG. 2 is a transverse cross-sectional view showing a part of the disposable diaper of FIG. 1 taken along line XX ′.

FIG. 3 is a plan development view showing an example of an embodiment of one side flap and a fastening tape attachment portion of the disposable diaper of FIG.

FIG. 4 is a plan development view showing an example of another embodiment of one side flap and the fastening tape attachment portion of the disposable diaper of FIG.

5 is a plan development view showing an example of another embodiment of one side flap and the fastening tape attachment portion of the disposable diaper of FIG. 1. FIG.

FIG. 6 is a plan development view showing an example of another embodiment of one side flap and the fastening tape attachment portion of the disposable diaper of FIG. 1.

[Explanation of symbols]

1: Used diaper 2: Liquid permeable top sheet 3: Liquid impermeable back sheet 4: Absorber 5: Side flap 6: Three-dimensional gather 7: Fixed part 8: Free section 9: Three-dimensional gather elastic member 10: Leg elastic elastic member 11: Side flap concave deformation part 12: Fastening tape 13: Fastening tape gripping section 14: Fastening tape concave deformation part 15: Adhesive material 16: Nonwoven sheet 17: Hook material

Claims (4)

[Claims] 1. A liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber provided between these sheets, and side flaps are provided on both side edges in the longitudinal direction of the absorber. In the disposable diaper, at least a part of the side flap is provided with a plurality of concave deformed portions intermittently along the longitudinal direction of the disposable diaper, and one side of the disposable diaper. In the surrounding area, the diaper for use is folded in half through the crotch area, and a fastening tape having a fixing means for the other waist area is provided to fix the wearer on the wearer. The disposable diaper characterized in that the gripping portion is provided with a plurality of concave deformable portions intermittently along the longitudinal direction of the disposable diaper. 2. A plurality of intermittent concave deformed portions provided on at least a part of the side flaps along the longitudinal direction of the disposable diaper, and an intermittent portion provided on a holding portion of the fastening tape. Multiple concave deformation parts,
The use according to claim 1, wherein the center points of the concave deformed portion provided on the side flap and the concave deformed portion provided on the fastening tape are substantially the same, and are the same. Diaper. 3. The fastening means for the fastening tape is a hook member, and the back sheet surface of the other waist region opposite to the waist region in which the fastening tape is arranged in the diaper in use, The adhered material which can be physically engaged with the hook material is provided so that the hook material can be repeatedly attached and peeled off. A disposable diaper. 4. The fastening means for the fastening tape is a pressure-sensitive adhesive tape, and is provided on the backsheet surface in the other waist region opposite to the waist region where the fastening tape is arranged in the diaper for use. The disposable diaper according to claim 1 or 2, further comprising an adherend to which the pressure-sensitive adhesive tape can be repeatedly applied and peeled.