JP3583151B2 - Absorbent articles - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an absorbent article, and more specifically, is used together with a diaper cover, wearing equipment or underwear for incontinents who do not excrete a large amount of excretion, or is used together with an adult disposable diaper, etc. The present invention relates to an absorbent article used for:
[0002]
[Prior art]
Absorbent articles used as an auxiliary for diapers for incontinent or adult males are provided with an absorbent body inside and already formed in a tubular or bag shape. I have. However, such an absorbent article has a fixed size, has a feeling of pressure, and has a low absorption of bodily fluids such as urine, so that it cannot be used for all wearers.
[0003]
Another auxiliary absorbent article includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the two sheets. A band-like material that can be folded back into a substantially bag-like or funnel-like shape, and has a first side flap and a second side flap in which at least the back sheet extends outwardly on both side ends of the absorber. Already known.
[0004]
For example, as shown in FIGS. 4 and 5, the water-absorbent article 70 includes a top sheet 72, a back sheet 74, and an absorber 76 sandwiched between the sheets 72, 74. The seat 72 and the top sheet 74 have side flaps 78 and 80 extending. Gathers 82a and 82b, which are elastic members, are provided on the side flaps 78 and 80, and an adhesive tape 84 and a release paper 86 are provided at predetermined positions on the back sheet 74 (see FIG. 2). No. 6024).
[0005]
In the case where such an absorbent article 70 is used for men, as shown in FIG. 5, the absorbent article 70 is folded substantially in a bag shape or a funnel shape, and the end 70a of the absorbent article provided with the adhesive tape 84 is provided. Is folded into a bag-like shape, and is adhered to the inner surface (top sheet surface) of the substantially obliquely facing portion 70b of the absorbent article via the adhesive tape 84. Such an absorbent article 70 has the advantage that the size can be adjusted depending on the use condition and the amount of the whole body fluid such as urine absorbed is high.
[0006]
[Problems to be solved by the invention]
However, in the conventional absorbent article, since the adhesive tape 84 is adhered to the top sheet 72, there is a problem that the adhesive force between them is weak. That is, since the top sheet 72 is formed of a nonwoven fabric, a porous film, or the like having poor sticking properties due to its function, and the periphery thereof is coated with a silicone oil agent, paraffin wax, or the like, the top sheet 72 is The adhesive force of the adhesive tape 84 may be weakened, and the absorbent article may lose its shape when used for a long time.
[0007]
Further, in the conventional absorbent article 70, when the end portion 70a provided with the adhesive tape 84 is folded into the almost obliquely facing portion 70b, there is a possibility that the gathers 82b of the side flaps 80 may hinder the operation. Furthermore, since the folded and overlapped portions 70a and 70b are arranged on the side (or the side opposite to the skin side) where the disposable diaper or the like is in contact at the time of wearing, as a result, the absorbent article in the diaper is placed. The positional stability is lacking, the fit in long-time wearing is poor, and the gathers 82a of the side flaps 78, which are the opening edges of the formed bag, etc., directly hit the skin, which may deteriorate the feeling of wearing.
[0008]
Furthermore, since the side flaps 80 extend in the direction in which the liquid seeps out, it has been difficult to suppress liquid leakage.
Therefore, an object of the present invention is to provide an auxiliary absorbent article used together with a disposable diaper or the like, in which a mounting operation at the time of use is easy and there is no possibility of causing a shape collapse or the like in a long time use. .
[0009]
Another object of the present invention is to provide, in addition to the above-mentioned objects, an absorbent article which is excellent in a feeling of wearing at the time of use and has little liquid leakage such as urine.
[0010]
[Means for Solving the Problems]
The present invention comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the two sheets, and is substantially bag-shaped or funnel-shaped with the top sheet inside. in a belt-like material which can be folded, in the absorbent article at both side ends outwardly above Symbol backsheet and the topsheet having a first side flap and a second side flap extending above the absorber, the The first side flap is folded back to the top sheet side, and a part or all of the first side flap is fixed to the top sheet, and at least a part of the back sheet surface of the folded first side flap is folded. an adhesive portion on the surface, provided over a release paper, the strip, when folded substantially bag-shaped or funnel-shaped with the top sheet inside, superposed by folding part , An elastic member is provided along the flap in a central region of the second side flap, and the first side flap includes: This has been achieved by providing an absorbent article characterized in that no elastic elastic member is provided.
[0011]
[Action]
According to the absorbent article of the present invention, when the absorbent article is folded in a bag shape or a funnel shape, the side end portion of the article without the elastic member is not contracted, so that the folding operation of the side end portion is simplified. Can be In addition, the end of the absorbent article provided with the adhesive portion is folded up with the portion almost diagonally inward, so that no extra absorbent remains on the outside, and the size of the opening can be freely selected. it can. In the adhesive portion, since the back sheets are joined to each other, a sufficient adhesive force is maintained, and it is difficult to lose the shape. Further, since the adhesive portion is located in the longitudinal direction, the overlapped portion is completely joined and does not leak from this portion.
[0012]
When the absorbent article thus molded in a bag shape or a funnel shape is attached, since the overlapping portion of the absorbent article does not have a stretchable elastic member or the like, the overlapping portion is used as a surface material when used in combination with a disposable diaper. When the absorbent article of the present invention is used alone, such as an incontinent person, the overlapped portion can be arranged on the side in contact with the skin, resulting in a sense of stability and fit during wearing.
[0013]
Further, when the second side flap has a turn, particularly when both ends of the second side flap are fixed, the central portion of the second side flap rises, and is opened at the opening of the bag-like or funnel-shaped absorbent article. It becomes a leak-proof wall. Furthermore, the elastic member of the second side flap is on the upper part, and the possibility of directly pressing the skin is reduced.
[0014]
【Example】
Hereinafter, embodiments of the absorbent article according to the present invention will be described with reference to the drawings. FIGS. 1 to 3 show one embodiment of the absorbent article according to the present invention. FIGS. 1A and 1B are plan views of the absorbent article according to the embodiment, and FIG. 2 (b) is a cross-sectional view taken along the line II and II-II in the embodiment shown in FIG. 1, and FIG. 3 is a view showing a use state of the absorbent article.
[0015]
In the absorbent article according to the present embodiment, as shown in FIG. 1, a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and an absorber disposed between the two sheets 2 and 3 And a band-like material that can be folded back in a substantially bag-like or funnel-like shape with the top sheet 2 inside, and the back sheet 3 and the top sheet 2 extend outwardly on both ends of the absorber 4. The configuration having the first side flap 6 and the second side flap 7 is the same as that of a known absorbent article.
[0016]
Thus, in the absorbent article according to the present embodiment, as shown in FIGS. 1 to 3, the first side flap 6 is folded back toward the top sheet 2 and a part of the first side flap 6 is formed. Alternatively, an adhesive portion 8 is provided on at least a part of the surface of the back sheet 3 of the first side flap 6 which is fixed to the top sheet 2 and folded back, and is provided in a central region of the second side flap 7. The elastic member 9 is arranged along the flap.
[0017]
Further, the second side flap 7 is folded back toward the top sheet 2, and the front and rear ends of the second side flap 7 are fixed to at least the top sheet 2.
The present embodiment will be described in more detail. As shown in FIG. 1, the absorbent article 1 is a band having a certain width, and the width of the top sheet 2 and the back sheet 3 is formed longer than the width of the absorber 4. ing. The two sheet portions extending from both side ends of the absorber 4 are fixed to each other, formed as first and second side flaps 6 and 7, and are folded back to the top sheet 2 side.
[0018]
As shown in FIG. 2, the first side flap 6 has all of the folded inner surfaces fixed to the top sheet 2, and the back sheet 3 covers a part of the top sheet 2 (near the side end surface). . An adhesive tape 8 as an adhesive portion and a release paper 10 covering the adhesive tape 8 are provided on the surface of the first side flap 6 (the surface of the back sheet 3). In the second side flap 7, both end portions of the folded inner surface are fixed to the top sheet 2 surface, and the central portion thereof is not fixed. A gather 9 as an elastic member is attached to a substantially central portion of the second side flap 7.
[0019]
In addition, as the above-mentioned fixing method, a known method can be adopted, and for example, adhesion using a hot-melt adhesive, welding using ultrasonic waves, welding using heat, or the like can be appropriately used.
Further, since the surface of the top sheet 2 of the absorbent article 1 of the present embodiment is an absorbent surface for bodily fluids such as urine, the top sheet 2 is a liquid permeable sheet, and the back sheet 3 is a liquid impermeable sheet. In addition, the absorber 4 is a holding carrier that sufficiently holds moisture.
[0020]
That is, the top sheet 2 is a liquid-permeable sheet that allows excrement to permeate into the absorber 4 and preferably has a feel similar to underwear. Examples of such a liquid-permeable sheet include woven fabric, nonwoven fabric, and the like. A porous film or the like is preferred. In addition, a method of applying a hydrophobic compound such as a silicone oil agent or paraffin wax to a peripheral portion of the top sheet, or a method of applying a hydrophilic compound such as an alkyl phosphate ester in advance and washing the peripheral portion with warm water is used. By performing the water-repellent treatment, leakage due to bleeding of urine or the like in the peripheral portion may be prevented.
[0021]
As the back sheet 3, a liquid-impermeable sheet having moisture permeability and a feeling close to underwear, for example, a strongly water-repellent nonwoven fabric, or a film, is provided. And a woven fabric.
The absorbent 4 is preferably composed mainly of defibrated pulp and combined with a highly water-absorbing polymer, and is preferably a mixture of a thermoplastic resin, cellulose fibers, and a polymer water-absorbing polymer that has been subjected to heat treatment. The location of the high-molecular-weight water-absorbing polymer may be any one of the upper layer, the middle layer, and the lower layer of the absorber 4, and may be a mixture with the defibrated pulp.
[0022]
For incontinent persons, it is desirable that the thickness of the absorber 4 be small so that the appearance is not noticeable when worn. Further, when used together with a disposable diaper, it is desirable that the absorption capacity of the absorber 4 is high, so that it is not necessary to frequently change the diaper body. In any of the above cases, it is required to be easy to bend into a cylindrical shape and to have a good feel.
[0023]
The gathers, which are elastic members attached to the second side flaps 7, are not limited to thread-like elastic members, but may be tape-like members or flat rubber. It is particularly preferable that such a stretchable elastic member has a stretch stress of 100 g or less at 150% elongation, and a yarn having absorbable stretchability can also be used.
[0024]
In the absorbent article of the present embodiment configured as described above, the absorbent article 1 is folded in a bag shape or a funnel shape with the top sheet 2 side inside when using the absorbent article. In this case, the side end portion (side end portion having the adhesive tape 8) of the absorbent article 1 that is folded back and tapered does not have a contracting action because there is no elastic member, so that the folding back operation can be easily performed and a predetermined operation can be performed. The shape can be easily adjusted.
[0025]
The absorbent article 1, FIG. 3 (a) and (b), the rare write folding the top sheet 2 of a portion of the substantially oblique facing the end provided with the adhesive tape 8 on the inside, the adhesive tape 8 is attached to the outer surface of the obliquely folded portion, that is, the backsheet 3 surface. Therefore, the adhesive tape 8 is Ri Do and joining superposed backsheet 3 side together, the absorbent article 1 is Ru is type building in the bag-like or funnel-shaped.
When the absorbent article 1 shaped like a bag or a funnel is used in combination with a disposable diaper, the overlapping portion 12 shown in FIG. 3A is applied to the surface material of the disposable diaper. and arranged to contact, also in the case of using the absorbent article 1 alone, there is no extension contraction elastic member such as a lap portion 12, a lap portion 12 shown in FIG. 3 (b), in contact with skin Can be arranged on the side . When the absorbent article 1 is used alone, the gathers 9 are located on the side that does not come into contact with the skin, so that the stability and fit during wearing are improved , and further, the gathers 9 are prevented from directly hitting the skin and the touch is felt. Will be better.
[0026]
The second side flap 7 is folded back with its both ends fixed to the top sheet 2 surface, and the portion where the gather 9 at the center other than both ends rises from the inside of the bag-like shape and forms a leakproof wall .
[0027]
In the case where the first side flap 6 is folded back and fixed to the top sheet 2 surface, the entire side flap 6 is fixed in the above embodiment, but the fixed portion does not need to be the whole and may be provided at an appropriate position. . When the second side flap 7 is folded back and fixed to the top sheet 2 surface, it is preferable that both end portions of the side flap 7 are fixed portions as in the above-described embodiment. Sex can be obtained.
[0028]
【The invention's effect】
ADVANTAGE OF THE INVENTION The absorbent article which concerns on this invention is easy to mount | wear at the time of use, and also there is no possibility that a shape collapse etc. will arise in use for a long time. In addition, it is excellent in a feeling of wearing at the time of use and there is little leakage of liquid such as urine.
[Brief description of the drawings]
FIGS. 1A and 1B are plan views of an absorbent article according to an example.
FIGS. 2A and 2B are a cross-sectional view taken along line II and a cross-sectional view taken along line II-II in the embodiment shown in FIG.
FIGS. 3A and 3B are perspective views showing a usage state of the absorbent article, wherein FIG. 3A is a view as seen from the overlapping portion side , and FIG. 3B is a view as seen from the opposite side .
FIG. 4 is a plan view of a conventional absorbent article.
FIG. 5 is a diagram showing a usage state of a conventional absorbent article.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Absorbent article 2 Top sheet 3 Back sheet 4 Absorber 6 First side flap 7 Second side flap 8 Adhesive part 9 Elastic elastic member

Claims (2)

It consists of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the two sheets, and can be folded back into a substantially bag-like or funnel-like shape with the top sheet inside. a strip, in an absorbent article having a first side flap and a second side flaps on SL backsheet and the topsheet extending on both ends outwardly of the absorbent body,
The first side flap is folded back to the top sheet side, and a part or all of the first side flap is fixed to the top sheet, and at least a part of the back sheet surface of the folded first side flap is folded. The adhesive portion is provided on the surface of the sheet by covering it with release paper, and when the band-like material is folded in a bag-like or funnel-like shape with the top sheet inside, the folded portion is overlapped by the adhesive portion. It is made to be joined,
In the central region of the second side flap, an elastic member is provided along the flap,
An absorbent article, wherein the first side flap is not provided with a stretchable elastic member. 2. The absorbent article according to claim 1, wherein the second side flap is folded back toward the top sheet, and the front and rear ends of the second side flap are fixed to at least the top sheet.

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