JP3199854B2 - Disposable diapers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper having improved wearability and fit, and more particularly to a disposable diaper for infants, incontinent persons and adults.

[0002]

2. Description of the Related Art As shown in FIG. 11, a conventional disposable diaper is composed of a liquid-permeable top sheet 2, a liquid-impermeable leakproof sheet 3, and a diaper body 5 having an absorber 4 interposed between these sheets. As means for attaching the diaper main body 5 to the body, a fastening tape 6 provided on the back side of the diaper main body and a landing tape 7 provided on the abdomen side to which the fastening tape 6 is adhered are provided. Is provided. Further, as a simple wearing tool for a disposable diaper, there is a disposable diaper for a baby, and a disposable diaper for a baby that has been completely molded in a pants-type in advance.

[0003]

However, in the above-mentioned conventional disposable diaper, in order to secure the fit,
It is necessary to keep the disposable diaper in a fixed state between the initial stage and the stage during use, and it is necessary to securely and elastically hold the disposable diaper. However, in the case of infants, especially in the case of a high-aged infant who requires fit, the wearer is not standing still when changing diapers, so that the wearer cannot wear it securely and becomes unstable.

[0004] In addition, in a high-aged infant, diaper changing in a standing state is more common than changing in a laid state, and it is difficult to mount the diaper with the conventional fastening tape 6, and the mounting state after the mounting is improper. It is stable. As described above, the initial state of disposable diaper wearing is unstable, so that the fitting property is not sufficient.In addition, in older children, the activity amount is further increased due to a large amount of activity. There is the disadvantage that deformation occurs and the fit is further impaired, resulting in leakage.

In the case of disposable diapers for incontinent persons,
In a product using the conventional fastening tape 6, it is difficult to wear the product while standing by itself, even if the wearer is elderly. Furthermore, incontinent persons are not always in incontinence, and if they try to urinate spontaneously, it is necessary to peel off the fastening tape to remove the disposable diaper. There is an inconvenience that it becomes troublesome. In the case of wearing with a rubber band, the operation of attaching the rubber band to the disposable diaper is relatively troublesome, and in addition, the rubber band is thin, so there is a drawback that the wearing stability is lacking. The pants-type disposable diaper has problems that the manufacturing process is complicated and expensive, and that it is difficult to remove the diaper itself during the defecation treatment, and it is difficult to round the diaper itself during the defecation treatment.

Accordingly, an object of the present invention is to make it easy to wear,
Another object of the present invention is to provide an inexpensive absorbent article that has good wearing stability during use, can secure fit, and is easy to treat during defecation.

[0007]

Means for Solving the Problems The present invention, a disposable having a liquid permeable topsheet, a liquid impermeable barrier sheet, the diaper body of arranged absorber and between these sheets In the diaper, at one end in the longitudinal direction of the diaper main body, an elastic band to cover the waist around the wearer on the leak-proof sheet side is provided in a ring shape, and the elastic band is formed in the longitudinal direction. The diaper is fixed to the leak-proof sheet on both sides of one end, the entire elastic band is disposed on the leak-proof sheet side, and is turned to the top sheet side when used. At the other end of the body
A fixing member for fixing to the elastic band member is provided on the leak-proof sheet side, and the fixing member is used when the elastic member is used.
By providing a disposable diaper characterized by being fixed to the skin contact surface side of the erogenous body ,
The above object has been achieved. In addition, the present invention
Transient topsheet, liquid impervious leakproof sheet, and
Diaper body consisting of an absorber placed between these sheets
In the disposable diaper provided with
At one end in the hand direction, the wearer's
An elastic band to cover the strike is provided in a ring shape,
The elastic band is provided on both sides of one end in the longitudinal direction.
The elastic band is fixed to the leak-proof sheet,
The top sheet is placed on the side of the
Side of the diaper body.
At least one of the other end and the elastic band body,
A fastening member for fastening to each other is provided, and the elastic band
The body is folded at both ends and the folded ends
Is fixedly joined to the leak-proof sheet on the outer surface side of
By providing disposable diapers characterized by the fact that
Thus, the above object has been achieved.

[0008]

When the disposable diaper of the present invention is worn,
Turn over the elastic band located on the leakproof sheet side,
It is arranged on the top sheet side, and forms a loop on the top sheet side to cover the circumference of the waist of the wearer. In this state, after passing the body through the ring-shaped elastic band, the other end of the diaper main body is fastened to the elastic band by the fastening member, or before passing the wearer's body through the elastic band. Alternatively, the other end of the diaper main body may be fixed to the elastic band 16 with a fastening member to form a pants shape, and then worn like pants. The disposable diaper may be replaced at the time of urination by taking off the pants. Further, when exchanging for defecation, it is possible to remove the portion that has been stopped with the fastening material in a laid state and round it toward the buttocks, and then stop the rounded portion with an elastic band to discard it.

[0009]

Embodiments of the present invention will be described below in detail.
FIG. 1 is a perspective view of a disposable diaper according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG.
Is a perspective view showing a method of mounting the disposable diaper shown in FIG. 1, FIG. 4 is a perspective view showing a disposal process state of the disposable diaper shown in FIG. 1, and FIG. 5 is a perspective view of the elastic band of the disposable diaper shown in FIG. FIG. 6 is a cross-sectional view of an elastic band according to another embodiment. FIG. 7 is a perspective view showing a joined state of the elastic band of the disposable diaper shown in FIG. 1. FIG. 9 is a perspective view showing another joining state of the elastic band, and FIG. 10 is a perspective view showing a disposable diaper according to another embodiment.

As shown in FIG. 1, a disposable diaper 10 of the present embodiment has a liquid-permeable top sheet 11, a liquid-impermeable leak-proof sheet 12, and an absorbent body 13 interposed therebetween. 14 is provided. The leak-proof sheet 1 is provided on the back side (one end) 15 of the diaper body 14 in the longitudinal direction.
An elastic band 16 to cover the waist around the wearer is provided on the two sides in a ring shape. The elastic band 16 is provided on both sides (side flaps) 15a and 15b of the back side 15 with the leakproof sheet. 12, the entire elastic band 16 is arranged on the leak-proof sheet side, and is turned upside down to the top sheet 11 when used. ) Or at least one of the elastic strips 16 is provided with a fastening member 17 for fastening the abdomen of the diaper body 14 and the elastic strips 16.

The above-mentioned diaper body 14 is formed with an abdominal part 18 located on the abdomen of the wearer and a dorsal part 15 located on the dorsal side when worn, and a side flap 15a of the dorsal part 15 is formed. , 15b, the elastic band 1
Both ends of the elastic strip 16 are joined and fixed so that 6 forms a ring shape. In addition, the ventral side 18, a pair of fastening members 17, 17 are provided on the barrier sheet 12 side, Oite when worn (in use), provided on the ventral side 18
It was該止adhesive member 17 is configured to so that is secured freely peeled skin contact surface side <br/> of the elastic strip 16. In addition, an elastic member 20 is disposed in the crotch portion 19 located between the abdominal portion 18 and the back side portion 15, so that a crotch gather is formed when the wearer wears the absorber 13 therebetween. I have.

As shown in FIGS. 2 and 7, the elastic band 16 is joined to the upper surface of the leak-proof sheet 12 on the back side 15 in a ring shape. The outer surface is folded back and joined and fixed. Since the both end portions 16a and 16b are folded back and fixed in this manner, as shown in FIG. 3A, the joint portion does not turn back in the used state, and an excessive force is applied to this portion. It is hard to apply and it is hard to peel off.

The width of the elastic band 16 must be changed depending on the subject in consideration of the fit during wearing, and cannot be uniquely determined, but is not less than 10 mm or 1/20 to 1/20 of the total longitudinal length of the absorbent article. A width of 1/2 is preferred, and more preferably 1 /.
10 to 1/3 of the width, and when worn, elastic band 1
This is because 6 preferably covers at least the upper surface of the absorber. In fixing the two end portions 16a and 16b of the elastic strip 16, the side opposite to the surface (skin contact surface) that directly contacts the skin during use is bonded by an adhesive, heat bond, ultrasonic wave, or the like. On the abdominal side 18 of the diaper body 14, the leak-proof sheet 12 is provided.
Although fastening member 17 on the surface of the are arranged,該止adhesive member 17 is not limited to be installed in ventral portion of the diaper body 14, at least of the elastic strip 16 or ventral side 18 It is only necessary to be installed on one of them.

Next, materials and the like of each component of the disposable diaper will be described. The topsheet 11 used in the present embodiment is generally widely used as a sanitary material, and is made of a fiber made of polyethylene, polypropylene, polyester, or the like, or a spun bond method or a heat bond method using a composite fiber thereof. Or a sheet formed by a hydro-entanglement method, and a hydrophilic treatment for improving the absorbability of bodily fluids is performed on at least a portion provided on the absorber surface. , Polyester, etc. as a raw material, is a perforated film that has been subjected to hydrophilization treatment to improve the absorbability of bodily fluids at least on the portion installed on the upper surface of the absorber, and it has a feeling, strength and absorbency In consideration of the above, a material having a thickness of 5 to 50 g / m ² is used.

The leak-proof sheet 12 may be a commonly used film made of polyethylene, polypropylene, polyester, or the like, or a laminate of such a film on paper or non-woven fabric. In consideration of the above, it is preferable to use a liquid-impermeable and moisture-permeable film. In addition, the moisture permeability and the thickness can be changed according to the subject and the application. In general,
Fine inorganic substances are mixed in the general-purpose resin, and fine holes are formed in the film by stretching or elution.
Alternatively, it may be a composite of a moisture-permeable film and a nonwoven fabric.

The absorber 13 is made of a web containing pulp and synthetic fibers, mainly of a highly absorbent polymer such as a polyacrylate or a graft copolymer of starch and acrylic acid. The amount may be adjusted according to the absorption amount to be absorbed. Further, the shape of the absorber 13 may be appropriately selected from a rectangle and an hourglass shape according to the subject. The elastic member 20 is made of polyurethane, natural rubber, SBR, or the like.
It is formed by installing and fixing a thread-like or band-like film or foamed elastic body made of an elastomer such as the above in a stretched state as needed.

The elastic strip 16, as shown in FIG. 5, a stretch in which the elastomer such as polyurethane, natural rubber or SBR as a raw material and sheet such as a film an open water-repellent film or hole 1 6 'and, at least the nonwoven fabric 1 6 "of water-repellent on the outside in a state of being bonded to the barrier sheet are combined. composite is a pre said elastic which is in a predetermined stretched state and form water repellent sheet The object and the water-repellent non-woven fabric are formed by an adhesive, heat bonding, ultrasonic waves, etc. In this way, by forming the outer side with the water-repellent non-woven fabric 16 " , the outer surface is folded back at the time of use to be worn by the wearer. The side in contact with the skin (skin contact surface side) becomes water-repellent, and the wearing feeling is good.

The stretching force of the elastic band 16 needs to be changed depending on the subject as well as the width and cannot be uniquely determined, but it is preferably 100 to 400 g / 30 mm when stretched twice, more preferably 200 to 400 g / 30 mm. ３００300 g / 30 mm. Further, the elasticity is 1.2 to 3.0 times, preferably 1.5 to 2.0 times. Although not shown, the elastic band 16 is leak-proof at at least one or more places apart from the end portions 16a and 16b joined to the leak-proof sheet 12 in order to smoothly carry it during manufacturing. Temporarily fixed to the sheet 12.

The fastening member (1) 7 is preferably a possible off with, may be in combination with a double-sided adhesive tape and the landing tape which is commonly used for sanitary articles,
Self-adhesive hot melt may be used, or Velcro (trademark) type tape may be used. Further, a non-slip adhesive having a small adhesive force and a small slippage, for example, a hot melt having a small surface tackiness may be applied in a dot-like, linear or planar shape. When these fastening member (1) 7 is placed on the elastic band 16 is placed in a state of maintaining the smoothness of the degree that can sufficiently adhere.

Next, a method of mounting the disposable diaper of this embodiment will be described. As shown in FIG. 3, there are two methods for mounting the disposable diaper. The first method is a method shown in FIGS. 3A to 3C. First, FIG.
As shown in (1), an annular shape is formed on the top sheet 11 side of the back side portion 15 of the diaper body 14 by turning the elastic band body 16 upside down. In this state, as shown in (b), pass both feet through a ring-shaped elastic band, pull out the abdominal part 18 from the inseam,
As shown in (c), the abdomen is inserted into the elastic band 16 on the abdominal side, and the abdomen 18 is stopped by the fastening member 17 to form a pants-like shape.

The second method is a method shown in FIGS. 3 (e) and 3 (f). First, as shown in FIG. 3 (e), the elastic band 16 is turned over so that the diaper body 14 is Back side 1
After forming a ring shape on the side of the top sheet 11 of FIG. 5, the abdominal portion 18 of the diaper main body 14 is placed inside the elastic band body 16 and fixed with the fastening member 17 to form a pants type.

Then, as shown in FIG. 2 (f), the trousers are worn by putting on pants. Thus, the disposable diaper of the present embodiment is easy to wear, and since the diaper main body is held by the elastic band 16 during the wearing, the wearing diaper has good wearing stability and good fit at the waist. . As a result, there is no slippage due to activities or the like, and front and rear leakage and crotch leakage are prevented. Further, the production of the disposable diaper of the present invention
Since only an elastic band is attached, conventional equipment can be used, making it economical and relatively inexpensive to manufacture. By folding using the elastic band, a highly portable folding method is possible Becomes

The disposable diaper at the time of urination may be discarded by removing the pants. For replacement during defecation, the part stopped by the fastening member 17 is peeled off in a laid state, the diaper body 14 is spread, the buttocks are cleaned, and the abdominal part 18 is wrapped around the defecation, After rounding to the part 15, the elastic band 16 is removed from the foot, and the rounded portion is stopped by the elastic band 16 and discarded as shown in FIG. Further, when the wearer excretes spontaneously, as in the case of replacement during defecation, the part stopped by the fastening member 17 is peeled off, the elastic band 1 is re-added after addition.
It may be stopped by the fastening member (1) 7 so as to be inserted into the lower side of the 6.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention. For example, as long as the elastic band 16 is one end in the longitudinal direction of the diaper main body, it may be fixed to either the back side or the abdomen side. The elastic band 16 may have a single-layer structure as shown in FIG. In this case, a stretchable and water-repellent sheet nonwoven fabric may be used as it is.
Such a non-woven, stretchable and water-repellent sheet-like material is formed from the above elastomer as a raw material into a non-woven fabric by a spun bond method, a melt blow method, or the like. This is obtained by a so-called stitch bonding method in which the elastic body is sewn while being stretched. Further, a thread-like or belt-like elastic body made of the above elastomer may be joined between water-repellent nonwoven fabrics in a stretched state. The bonding may be performed by using an adhesive, heat bonding, ultrasonic waves, or the like, or may be performed by using the fusibility of the fibers themselves when manufacturing a nonwoven fabric.

When the elastic band 16 is fixed to the leak-proof sheet, as shown in FIG. 8, the elastic band 16 may be fixed without folding both ends. Furthermore,
As shown in FIG. 9, a part of the elastic band 16 is cut into a V-shape 21 as necessary to remove unnecessary parts while securing a necessary width of the elastic band 16. Thereby, the fit around the wearer's feet can be further improved. Further, as a means for improving the leakproofness of the diaper body 14, a three-dimensional leg gather may be provided on the diaper body 14. Further, as shown in FIG. 10, the diaper main body 14 may have a configuration in which a waist gather 22 is provided on the back side portion 15 to which the elastic band 16 is joined.

[0026]

The disposable diaper according to the present invention provides an inexpensive absorbent article which is easy to wear, has good wearing stability during use, can ensure fit, and is easy to treat during defecation. It is. In particular, by holding the diaper body with the elastic band, good fit at the waist,
In addition, by using the elastic band, there is no slippage due to activities or the like, and as a result, front and rear leakage and crotch leakage are prevented, and compared with the conventional pants type, the treatment at the time of defecation is simpler and sanitary. It is. Furthermore, since the production of the disposable diaper of the present invention only requires the attachment of the elastic band, conventional equipment can be used, and it is economical and relatively inexpensive to manufacture, and by using the elastic band, It is possible to fold with good portability.

[Brief description of the drawings]

FIG. 1 is a perspective view of a disposable diaper according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a perspective view showing a method of mounting the disposable diaper shown in FIG.

FIG. 4 is a perspective view showing a disposal state of the disposable diaper shown in FIG. 1;

FIG. 5 is a cross-sectional view of the elastic body of the disposable diaper shown in FIG.

FIG. 6 is a cross-sectional view of an elastic body according to another embodiment.

FIG. 7 is a perspective view showing a joined state of the elastic band of the disposable diaper shown in FIG.

FIG. 8 is a perspective view showing another joined state of the elastic strip.

FIG. 9 is a perspective view showing another joined state of the elastic band.

FIG. 10 is a perspective view of a disposable diaper according to another embodiment.

FIG. 11 is a perspective view showing a conventional disposable diaper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Disposable diaper 11 Top sheet 12 Leak-proof sheet 13 Absorber 14 Diaper main body 15 Back side (one end) 16 Elastic band 17 Fastening member

Claims (4)

(57) [Claims] 1. A disposable diaper provided with a diaper body comprising a liquid-permeable top sheet, a liquid-impermeable leak-proof sheet, and an absorber disposed between these sheets, wherein the length of the diaper body is At one end in the direction, an elastic band to cover the circumference of the waist of the wearer is provided in a ring shape on the side of the leak-proof sheet, and the elastic band is provided on both sides of the one end in the longitudinal direction. The elastic band is fixed to the leakage sheet, the entire elastic band is disposed on the leakage prevention sheet side, and is turned upside down to the top sheet side during use. A fastening member for fastening to the elastic band is provided on the leaky sheet side, and when used,
The fastening member is fastened to the skin contact surface side of the elastic band.
A disposable diaper characterized by being made to be used . 2. A liquid-permeable topsheet and a liquid-impermeable topsheet.
Leak-proof sheets and absorbers placed between these sheets
In a disposable diaper provided with a diaper body made of At the one end in the longitudinal direction of the diaper body,
The elastic band to cover the wearer's waist around the g
It is provided in, The elastic band is provided on both sides of one end in the longitudinal direction.
The elastic band is fixed to the leak-proof sheet,
The top sheet is placed on the side of the
It is made to be inverted to the side, The other end of the diaper main body or at least the elastic band body
On the other hand, a fastening member for fastening these to each other is provided.
Yes, The elastic band is folded at both ends and folded back.
Fixed on the outer surface of the both ends to the leak-proof sheet
Disposable diapers characterized by being made. 3. A side flap portion formed on both side edges of the diaper main body, wherein both end portions of the elastic band body are provided,
The disposable diaper according to claim 1 , wherein the disposable diaper is joined and fixed to the leak-proof sheet, and has a ring shape formed by the elastic band body and the diaper main body. Wherein said elastic strip body, according to any claims 1-3 in which wherein the skin contact surface side located is inverted topsheet side in use is a nonwoven repellency Disposable diapers.