JPH0451952A - Absorptive article - Google Patents

Abstract

PURPOSE:To obtain an inexpensive absorptive article whose structure is simple and which is excellent in fittability, sealability and a wearing sense in the crotch part by placing an absorber between a liquid permeable surface sheet and a liquid unpermeable reverse side sheet, and providing a flexible elastic member in a crotch lower area of a flexible side flap extended to the outside in the width direction of the absorber. CONSTITUTION:Between a liquid permeable surface sheet 2 and a liquid unpermeable reverse side sheet 3, an absorber 4 is paced. Side flaps 5, 5 are extended out from both end sides of the absorber 4, the surface sheet 2 and the reverse side sheet 5 are superposed and formed, and between both these sheets 2, 3, flexible elastic members 6, 6 are installed, respectively. Also, the flexible elastic members 6, 6 contract in turn-back parts 52, 52 and are curved to the surface side and form a gather, and also, by raising turn-back parts 51, 51, the article has a shape adapted to a user's crotch shape, it can be put easily against the crotch, is excellent in a wearing sense, and can be put on with a desirable external appearance at the time of wearing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to absorbent articles that are worn with wearables such as diaper covers and underwear to absorb and retain body fluids and other excreta, and more specifically, absorbent articles that are worn with wearable items such as diaper covers and underwear, and more specifically, The present invention relates to an absorbent article suitable for use by women, adults, people with incontinence, or menstrual use, and particularly an absorbent article with excellent wearability and operability for people with incontinence.

[Conventional technology]

As conventional absorbent articles for infants, adults, incontinent persons, or menstrual use, for example, Japanese Patent Application Laid-Open No. 49-93143,
JP-A-50-33044, JP-A-50-1613
No. 47, JP-A-51-46245, JP-A-Sho 5
There are those described in JP-A-2-84041 and JP-A-57-210004. The absorbent articles described in each of these publications are so-called box pleat diapers that have folded parts on both longitudinal edges to form pockets. It is intended to improve the absorption, retention and sealing properties of objects.

In addition, as other absorbent articles, for example, JP-A-58-
There are those described in JP-A-65002, JP-A-62-199802, JP-A-62-i99806, and the like. The absorbent articles described in each of these publications have side flaps on both edges in the longitudinal direction, and have folded portions on the side flaps to form pockets.
All of them, like those described in the above-mentioned publications, are designed to improve the absorption, retention and sealing properties of excrement.

In particular, absorbent articles for incontinent people include simple rectangular ones (such as Utility Model Publication No. 163617/1983) and those with a structure similar to the above-mentioned box pleat type diaper (Japanese Patent Publication No. 59/1983).
00948, etc.), or those with a special structure such as a pouch-like shape that fits the genitals and crotches of men and women from an anatomical point of view (
(Japanese Utility Model Publication No. 6250617, Japanese Patent Application Laid-open No. 63-26405, etc.).

[Lesson 11 that the invention attempts to solve! ] However, because conventional box pleat type disposable diapers are constructed so that the folded absorbent core fits between the legs, body fluids and other excreta absorbed by the absorbent core in this area are not exposed to the surface. There is a problem that the excrement may ooze and wet bedding, etc., and that leakage of excrement may cause discomfort. In addition, these disposable diapers have a sealing mechanism that is formed by folding back the absorbent body, so the sealing mechanism has poor flexibility and is difficult to mold to the wearer's body shape. The problem was that it was difficult to keep up with changes.

On the other hand, with conventional disposable diapers that have folded side flaps, the pockets are flexible, and the pockets collapse due to body pressure or changes in body shape during activities, and sometimes the side flaps are folded inward, reducing sealing performance. There was an issue.

In addition, many absorbent articles such as diapers for incontinent people are rectangular and flat, and while these articles have a simple structure,
Because it is flat, it has a problem in that it has a significantly poor fit in the crotch area and has a low leak-proofing effect.

In addition, absorbent articles such as box pleat diapers for incontinent people have thick folded parts (high tension), making them uncomfortable to wear and making them unsuitable for use in daily life. The appearance of these absorbent articles when worn is not aesthetically pleasing, and some wearers find them extremely unsightly, making these absorbent articles unsuitable for normal use.

In addition, specially shaped absorbent articles designed to suit both men and women are used especially for people with severe incontinence requiring hospitalization, and these articles generally have complex structures. Because of their high price, these products are difficult to use as disposable products, and they require special underwear when worn, making them unsuitable for regular use, similar to the box pleat type.

Therefore, an object of the present invention is to provide an absorbent article that has a simple structure, excellent fit, sealability, and wearing comfort in the groin region, and that can be produced easily and inexpensively regardless of gender, especially for incontinent people. The purpose of the present invention is to provide an absorbent article for use.

(Means for Solving the Problems) The present invention provides a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body disposed between these two sheets,
The absorbent body has flexible side flaps extending outward in the width direction, and a stretchable elastic member disposed in the longitudinal direction in the crotch neck region of the side flaps, and is suitable for use with underwear, diaper covers, etc. In an absorbent article to be worn with a wearer, a first folded part is formed by folding the longitudinal green side of the absorbent body inwardly of the absorbent body along a first folding line within the first folding part, and a second folded part is formed within the first folding part. A second folded part is formed by folding the second folded part towards the outside of the absorbent body between the longitudinal side green of the absorbent body and the inner edge of the stretchable elastic member to form a second folded part, and the first folded part is folded back to the crotch area. The above object has been achieved by providing an absorbent article characterized in that the absorbent article is bonded and fixed.

The present invention also provides a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body disposed between these two sheets, and a flexible material extending outward in the width direction of the absorbent body. An absorbent article having flexible side flaps and a stretchable elastic member disposed in the longitudinal direction in the crotch nodule region of the side flaps, and worn with wearing equipment such as underwear and diaper covers, wherein the above absorbent body A first folded portion is formed by folding the longitudinal side green inward of the absorbent body along a first folding line within the absorbent body, and a second folded portion is formed between the longitudinal side green of the absorbent body and the stretchable elastic member. A second folded part is formed by folding the topsheet side outward of the absorbent body between the inner edge and the first folded part, and the first folded part is bonded and fixed to the topsheet side at least at one of the front and rear ends of the first folded part. The present invention also provides an absorbent article characterized by the following.

[Function] According to the present invention, when worn with wearing equipment such as underwear or a diaper cover, if the side flaps are worn without opening and the second folded portion is in close contact with the crotch area on its plane. At the same time, the absorbent body can absorb body fluids and other excreta, and the box formed by the absorbent body, the first folded part, and the second folded part can contain and hold the body fluids and other excretions.

〔Example〕

The present invention will be explained below based on the embodiments shown in FIGS. 1 to 6. In each figure, FIG. 1 is a plan view showing an intermediate product before forming the folded part of a disposable diaper (for women) suitable for use by incontinent persons, which is an embodiment of the absorbent article of the present invention. , FIG. 2 is a plan view showing a disposable diaper as a product in which the intermediate product shown in FIG. 1 is provided with a folded part, FIG. FIG. 1 is a view corresponding to FIG. 1 showing a disposable diaper (for men) suitable for incontinent persons, which is another example of the absorbent article; FIG. 5 is a view corresponding to FIG. 2 showing the disposable diaper shown in FIG. 4; FIG. 6 is a view corresponding to FIG. 1 showing a disposable diaper which is another embodiment of the absorbent article of the present invention.

As shown in FIG. 1, a disposable diaper 1 for incontinent persons, which is an embodiment of the absorbent article of the present invention, comprises a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and both of these sheets. 2.3, a flexible side flap 5.5 extending outward in the width direction of the absorbent body 4;
The side flap 5.5 has a stretchable elastic member 6.6 disposed in the longitudinal direction in the crotch area, and is configured to be worn by a woman together with wearing equipment such as underwear (not shown). .

The side flaps 5.5 are formed by overlapping the top sheet 2 and the back sheet 3 that extend from both side edges of the absorbent body 4, and there is a space between these two flaps 2.3. The above-mentioned elastic members 6.6 are interposed respectively. Each of the side flaps 5.5 is formed by folding both longitudinal edges of the absorbent body 4 inwardly of the absorbent body 4 along the first folding line along the respective full lengths at the dashed-dotted line position shown in FIG. 1 folded portion 51.51 is formed, and the side flap 5.5 is positioned between both ends of the absorbent body 4 in the longitudinal direction and the inner edge of the elastic member 6.6 (as shown in FIG. The second folded portion 5 is folded outwardly over the entire length of the absorbent body 4 at the position shown by the two-dot chain line).
2.52 is formed (see FIGS. 2 to 4), and the first folded portion 51.51 is slightly inside the dashed line shown in FIG. As shown by the X mark in Fig. 3, the linear fixing part 7.
A) is bonded and fixed to the top sheet 2, and it is functionally preferable that the length of the fixing part 7 is 20 to 100 mm in the longitudinal direction.

Further, although not shown, the second folded part 52.52 is joined and fixed at a predetermined width to the first folded part 51.51 in the crotch area to form a fixed part, so that the top sheet 2 is always directed upward. Moreover, the second folded portions 52.52 are prevented from folding inward when worn, and the fixing portion imparts some rigidity to the second folded portions 52.52 so that the shape of the box 8 can be maintained. It is preferable that it be configured. It is functionally preferable that the fixing part is formed between the inner edge of the stretchable elastic member 6.6 and the longitudinal side of the absorber 4 over a length of 20 to 100 cm in the longitudinal direction.

In this way, the first folded portion 51 and the second folded portion 52
In this disposable diaper l in which the stretchable elastic member 6 is formed,
．． 6 is located at a second folded part 52.52 located at a position separated from the absorbent body 4 by a first folded part 51.51. Therefore, when the present disposable diaper l is in a free state, the stretchable elastic member 6.6 is attached to the second folded portion 52.52.
The first folded portions 51.51 are made to stand up, and each first folded portion 51.51 and the absorbent body 4 form a box 8. (See Figures 2 and 3).

Further, the stretchable elastic member 6.6 disposed in the second folded part 52.52 is located biased forward from the longitudinal center of the second folded part 52.52, and the second folded part 52.
As described above, planar gears are formed on each of the folded portions 52 and 52 to ensure tight contact and sealing in the crotch area. Note that 9 is an adhesive area coated with adhesive for fixing the disposable diaper 1 to underwear.

The top sheet 2, back sheet 3, absorbent body 4, and stretchable elastic member 6 in the present disposable diaper 1 can be formed from conventionally known materials.

Since the present disposable diaper I has the above configuration, the first folded portion 51.51 and the second folded portion 52.52 maintain a folded form, so that it can be quickly worn together with wearing equipment, and can be worn quickly. Later, the second folded part 52.52 fits in surface contact with the crotch neck area, and a box 8 can be created in the crotch neck area by the first folded part 51.51, and the second folded part 52.52 This makes it possible to make surface contact with the leg gap and reliably seal the inside. In addition, since both ends of the absorbent body 4 in the longitudinal direction are sealed within the first folded portions 51.51, leakage from the ends of the absorbent body 4 can be effectively prevented. Furthermore, the absorbent body 4 absorbs easily absorbable excreta, and the pockets 8.8 can capture and contain poorly absorbable excreta such as feces, thereby reliably preventing excreta from leaking. be able to. In addition, in this disposable diaper 1, the folded portions 51 and 52 in the crotch area are bulky and small (and have a shape that conforms to the shape of the user's crotch, so they are easy to apply to the crotch, are comfortable to wear, and are comfortable to wear. It can sometimes be worn with a desirable appearance.

In addition, in the present disposable diaper 1, the stretchable elastic member 6
．． 6 is spaced apart from the absorbent body 4, its contractile force is not transmitted to the absorbent body 4, and the absorbent body 4 can be prevented from twisting and sagging, thereby further preventing leakage.

Furthermore, FIGS. 4 and 5 are diagrams showing a disposable diaper for incontinence which is another embodiment of the absorbent article of the present invention. , the position of the elastic member 6.6 and the first folded portion 51.
All the same as Figures 1 to 3 except that the joint fixing position of 51 is different.
It has the same structure as the disposable diaper shown in the figure. That is, the first folded part 51.51 is a linear fixed part l extending over a predetermined length on both sides of the rear end in the longitudinal direction of the absorbent body 4.
It is bonded and fixed to the top sheet 2 at 0110.

It is functionally preferable that the length of the fixing part 10 is 20 to 100 cm in the longitudinal direction. In addition, the elastic member 6.6
are arranged in front of the second folded portions 52, 52, respectively. Therefore, in this disposable diaper 1, with the first folded portions 51.51 fixed at both side edges of the rear end of the absorbent body 4, each stretchable elastic member 6.6 is contracted, so that each of the first folded portions 51.51 of the portion is 1. According to this embodiment, the folded portion 51.51 is raised to form a box 8 in the front. When worn, the stretchable elastic member 6.6
When contracted, the first folded/returned part 51;
1 is stood up to form a box 8 in front, which fits suitably against the crotch area of a male incontinent person, thereby achieving the same effect as the disposable diaper in the above embodiment.

Further, FIG. 6 is a diagram showing a disposable diaper for incontinence which is still another embodiment of the absorbent article of the present invention, and as is clear from the figure, the disposable diaper 1 of this embodiment has Position of elastic member 6.6 and first folded portion 51.51
The diaper is constructed in the same manner as the disposable diaper shown in FIGS. 1 to 3, except that the joining and fixing positions are different. That is, the first folded portions 51.51 are bonded and fixed to the top sheet 2 at four fixing portions 10 on both front and rear ends of the absorbent body 4. According to this embodiment, when the stretchable elastic member 6.6 contracts, the first folded part 51.51 in the crotch area rises to form a box 8 in the crotch area, which is suitable for the crotch area of a female incontinent person. It is possible to achieve the same effects as the disposable diaper in each of the above embodiments.

According to each of the above embodiments, since the structure is simple, the width of the folded part and the position of the joint point need only be changed as appropriate, without having to make a complicated design for men and women, especially for incontinent people. Therefore, it is very advantageous in terms of manufacturing and processing.

It should be noted that the present invention is not equally limited to the disposable diapers explained in the above embodiments, and the present invention can also be applied to absorbent articles for sanitary use, vaginal discharge treatment, etc., as long as it does not deviate from the gist of the present invention. can do.

Next, the following leakage test was conducted on the disposable diaper of the present invention using a specific invented product to examine the leakage prevention effect.

[Test example]

Test Example 1 In this test, the first folded portion 51, .
51 each to the top sheet 2 in the inseam area for 30 m.
The product 1 of the present invention shown in FIG. 2 was manufactured by bonding and fixing the two.

Next, the following leakage test was conducted using Inventive Product 1, and the results are shown in Table 1 below.

(1) Materials and their dimensions - Top sheet 2: Non-woven fabric @ 140 cm x width 20 CI 11 - Back sheet 3: Polyethylene film - Absorbent body 4
: u35ca+x Width 15cm Composite of fluff pulp and super absorbent polymer / Stretchable elastic member 6: Polyurethane film Radius 8 Leakage test This test was conducted using the product of the present invention with underwear for adults, men or women who can open their legs. After attaching it to the model, it was first allowed to walk for 1 minute in a standing position (equivalent to walking 50 m). Immediately after walking, the following artificial urine was supplied from the tube at a rate of 5 g/sec from the excretory part, and the leakage This test measures the amount of artificial urine supplied until leakage occurs.

Artificial urine: Physiological saline test example 2 In this test, the test was carried out in the same manner as the invention product 1, except that each of the first folded parts 51 and 51 was joined and fixed to the top sheet 2 with a length of 801 only at the rear end in the longitudinal direction. Inventive product 2 shown in FIG. 5 was prepared using the above method, and the leakage test was conducted using the inventive product 2, and the results are shown in Table 1 below.

Test Example 3 In this test, as shown in FIG.
．． 51 each at only 30 at both longitudinal ends.
Inventive product 3 was produced in the same manner as inventive product 1, except that the inventive product 1 was bonded and fixed. Next, the inventive product 3 was subjected to the leakage test, and the results are shown in Table 1 below.

Comparative Test Example 1 In this test, a flat-type comparative product I was produced, in which the first folded part 51.5 m and the second folded part 52.52 were not fixed, and there was no fixation at the front and back. A leak test was conducted and the results are shown in Table 1 below.

Comparative Test Example 2 In this test, Comparative Product 2 was prepared in which only the first folded portion 51.51 and the second folded portion 52.52 were formed, but these folded portions were not bonded and fixed at all, and then the present comparison The above leakage test was conducted using Product 2, and the results are shown in Table 1 below.

According to the above test results shown in Table 1 below, the present invention product 1
It can be seen that Samples No. 3 to 3 are superior to Comparative Products 1.2 in terms of leakage prevention.

Table 1 [Effects of the Invention] The absorbent article of the present invention has a first folded part formed within the absorbent body by folding the green side in the longitudinal direction of the absorbent body together with the side flaps inwardly of the absorbent body. is folded back to the outside of the absorbent body at the side flap between the longitudinal side green of the absorbent body and the inner edge of the stretchable elastic member to form a second folded part, and the first folded part is folded to the crotch corner of the topsheet side. Because it is joined and fixed in the longitudinal direction at least one of the front end and rear end, the structure is simple, and it has excellent fit, sealability, and comfort in the groin area, and is easy to wear regardless of gender. Moreover, it can be produced at low cost.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an intermediate product before forming the folded part of a disposable diaper (for women) suitable for incontinent persons, which is an embodiment of the absorbent article of the present invention, and FIG. 3 is a plan view showing a disposable diaper as a product in which the intermediate product shown in FIG.
FIG. 4 is a view corresponding to FIG. 1 showing a disposable diaper (for men) suitable for incontinent persons, which is another embodiment of the absorbent article of the present invention, and FIG. 5 shows the disposable diaper shown in FIG. 4. FIG. 2 is a view corresponding to FIG. 2, and FIG. 6 is a view corresponding to FIG. 1 showing a disposable diaper which is another embodiment of the absorbent article of the present invention. l; Disposable diaper (absorbent article) 2; Top sheet 3; Back sheet 4; Absorbent material
5; Side flap 6; Elastic member 51; First folded part 52; Second folded part 1 FIG.

Claims (8)

[Claims] (1) A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body disposed between these two sheets, and a flexible sheet extending outward in the width direction of the absorbent body. In an absorbent article having a side flap and a stretchable elastic member disposed in the crotch region of the side flap in the longitudinal direction, the absorbent article is worn with wearing equipment such as underwear or a diaper cover, and the longitudinal side of the absorbent body is The edge is folded back inwardly of the absorbent body together with the side flap to form a first folded part along a first folded line within the absorbent body, and the first folded part is connected to the longitudinal side edge of the absorbent body and the stretchable elastic member. An absorbent article characterized in that the absorbent body is folded outward at the side flap between the inner edge to form a second folded part, and the first folded part is joined and fixed in the crotch region. (2) A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body disposed between these two sheets, and a flexible sheet extending outward in the width direction of the absorbent body. In an absorbent article having a side flap and a stretchable elastic member disposed in the crotch region of the side flap in the longitudinal direction, the absorbent article is worn with wearing equipment such as underwear or a diaper cover, and the longitudinal side of the absorbent body is The edge is folded back inwardly of the absorbent body together with the side flap to form a first folded part along a first folded line within the absorbent body, and the first folded part is connected to the longitudinal side edge of the absorbent body and the stretchable elastic member. A second folded part is formed by folding the absorbent body outward at the side flap between the inner edge thereof, and the first folded part is bonded and fixed to the topsheet side at at least one of the front and rear ends of the first folded part. An absorbent article characterized by: (3) A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body disposed between these two sheets, and a flexible sheet extending outward in the width direction of the absorbent body. An absorbent article comprising side flaps and a stretchable elastic member disposed in the longitudinal direction in the crotch region of the side flaps, and worn with wearing equipment such as underwear or a diaper cover, wherein the absorbent article The side green is folded back inwardly of the absorbent body together with the side flap to form a first folded part along a first folded line within the absorbent body, and the first folded part is connected to the longitudinal side edge of the absorbent body and the stretchable elastic member. The absorbent body is folded outward at the side flap between the side flap and the inner edge of the absorbent body to form a second folded part, and the first folded part is folded in at least one of the crotch area and the front and rear ends of the longitudinal direction. An absorbent article characterized by being bonded and fixed to the topsheet side. (4) The absorbent article according to any one of claims (1) to (3), wherein the second folded part is joined and fixed to the first folded part in the crotch neck region. (5) Stretch the first folded part for 20 to 100 m in the longitudinal direction.
Claim (1) characterized in that the joint is fixed with a length of m.
The absorbent article according to any one of (4) to (4) above. (6) The second folded portion is placed between the inner edge of the stretchable elastic member and the longitudinal side green of the absorbent body in the longitudinal direction 20~
The absorbent article according to any one of claims (1) to (5), characterized in that the absorbent article is bonded and fixed with a length of 100 mm. (7) Claim characterized in that the elastic stretchable member is arranged to be biased rearward from the center in the longitudinal direction of the absorbent article (
The absorbent article according to any one of 1) to (6). (8) Claim (8) characterized in that the elastic stretchable member is arranged to be biased forward from the center in the longitudinal direction of the absorbent article (
The absorbent article according to any one of 1) to (6).