JP3015070B2 - Absorbent articles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an absorbent article for absorbing and retaining excretions such as bodily fluids, and more particularly for infants, adults, incontinent persons, or sanitary persons. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suitable absorbent article, particularly for an incontinent person, having excellent wearing feeling and operability.

[Conventional technology]

Conventional absorbent articles for infants, adults, incontinents or menstrual baths include, for example, JP-A-49-93143, JP-A-50-33044, JP-A-50-161347, Kaisho 5
No. 1-46245, JP-A-50-84041 and JP-A-57
Japanese Patent Application Publication No. -210004 and the like. The absorbent articles described in these publications are so-called box-pleated diapers in which folded portions are provided on both side edges in the longitudinal direction to form pockets. It is intended to improve the absorption, retention and sealing properties of the object.

Further, as other absorbent articles, for example,
No. 65002, JP-A-62-199802 and JP-A-62-1
There are those described in 99806 and the like. The absorbent articles described in each of these publications have side flaps on both side edges in the longitudinal direction, and are provided with folded portions in the side flaps to form pockets, all of which are described in the above publications. In the same manner as described above, it is intended to improve the absorption, retention and sealing of excrement.

In particular, as absorbent articles for incontinent persons, simple rectangular articles (Japanese Utility Model Application Laid-Open No. 61-163617, etc.) and those having a structure similar to the box pleated type diaper described above (Japanese Patent Publication No. 59-500948, etc.) ) Or from a anatomical point of view, the genitals and crotch of males and females, with special structures made into a suitable bag shape (J.
No. 50617 and JP-A-63-26405).

[Problems to be solved by the invention]

However, since the conventional box-pleated disposable diaper is configured such that the folded-back absorber fits around the legs, excrement such as bodily fluids absorbed by the absorber in the relevant portion is oozed to the surface. In addition, there is a problem that bedding and the like may be wet, and that excrement leaks may cause discomfort. Also, these disposable diapers are
Since the absorber is folded back to form the seal mechanism with the absorber, the seal mechanism is inferior in flexibility, and it is difficult to fit the wearer's body shape, and it is difficult to follow changes in the body shape during activity. there were.

On the other hand, in the conventional disposable diaper having a folded portion on the side flap, the pocket is soft and the pocket collapses due to body pressure or a change in body shape during activity, and sometimes the side flap is folded inward to reduce the sealing performance. There were challenges.

In addition, many absorbent articles such as diapers for incontinent persons are rectangular and flat.Since these articles have a simple structure, the flatness of the articles makes them extremely inferior in fit at the crotch and has a leakproof effect. There was a problem that it was low.

In addition, absorbent articles such as box-pleated type diapers for incontinent persons have a bad feeling of wearing because the folded part is thick and bulky, and are not suitable for use in ordinary life. Such an appearance is not preferable from an aesthetic point of view, so that some wearers have a very bad appearance, and there is a problem that these absorbent articles are not suitable for ordinary use.

In addition, specially shaped absorbent articles designed to suit both men and women are used especially for severe incontinent persons who need hospitalization, and these structures are generally complicated in structure. However, they are difficult to use as disposable products at all, and require special underwear when worn. Therefore, there is a problem that they are not suitable for ordinary use like box pleated type.

Accordingly, it is an object of the present invention to provide an absorbent article which has a simple structure, is excellent in fitting property, sealing property and wearing feeling in a crotch part, and which can be easily and inexpensively produced irrespective of gender. To provide an absorbent article for use.

[Means for solving the problem]

The present invention provides a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber disposed between these two sheets, and a flexible member extending outward in the width direction of the absorber. An absorbent article having a side flap and a stretchable elastic member disposed longitudinally in a crotch region of the side flap, wherein a longitudinal side edge of the absorber is folded inward of the absorber so that the absorber The first folded portion is formed by the first folded line, and the second folded portion is folded outward of the absorber toward the top sheet between the longitudinal edge of the absorber and the inner edge of the elastic member. The above object has been achieved by providing an absorbent article characterized in that the second folded portion is formed and the first folded portion is joined and fixed to the top sheet in the crotch region.

Further, the present invention provides a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber disposed between these two sheets, and a sheet extending outward in the width direction of the absorber. An absorbent article which has a flexible side flap and a stretchable elastic member disposed in the crotch region of the side flap in the longitudinal direction, and is worn with underwear, a diaper cover, or other wearing tool, wherein the absorbent A longitudinal side edge is folded inward of the absorber to form a first folded portion with a first folded line in the absorbent body, and a second folded portion is formed between the longitudinal side edge of the absorber and the inside of the elastic member. A second folded portion is formed by folding back the absorber on the top sheet side between the edge and the top sheet, and the first folded portion is joined and fixed to the top sheet at at least one of its longitudinal front and rear ends. Features There is provided in combination an absorbent article that.

[Action]

ADVANTAGE OF THE INVENTION According to this invention, when it wears with a garment as it is, without spreading a side flap, while a 2nd folded part adheres to a crotch area | region in its plane, the excrement, such as a bodily fluid, can be absorbed and absorbed by an absorber. A box formed by the body, the first folded portion, and the second folded portion can store and hold bodily fluids and other excrement.

〔Example〕

Hereinafter, the present invention will be described based on the embodiment shown in FIGS. In each of the figures, FIG. 1 is a plan view showing an intermediate product before forming a folded portion of a disposable diaper (for women) suitable for incontinent persons, which is one embodiment of the absorbent article of the present invention. 2 is a plan view showing a disposable diaper as a product provided with a folded part in the intermediate product shown in FIG. 1, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. FIG. 1 is a diagram corresponding to FIG. 1 showing a disposable diaper (for men) suitable for incontinent persons according to another embodiment of the article, FIG. 5 is a diagram corresponding to FIG. 2 showing the disposable diaper shown in FIG. Fig. 2 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 one embodiment of the absorbent article of the present invention, has a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and both sheets. Absorber 4 disposed between 2 and 3 and flexible side flaps 5 and 5 extending outward in the width direction of absorber 4
And elastic members 6, 6 disposed in the crotch region of the side flaps 5, 5 in the longitudinal direction, and configured to be worn by a woman together with a wear (not shown) such as underwear. I have.

The side flaps 5, 5 are formed by superimposing the top sheet 2 and the back sheet 3, which extend from both side edges of the absorber 4. The elastic members 6 and 6 are interposed respectively. The side flaps 5, 5 are formed by folding both side edges of the absorber 4 in the longitudinal direction at the dashed line positions shown in FIG. One folded portions 51, 51 are formed, and the side flaps 5, 5 are positioned between both ends in the longitudinal direction of the absorber 4 and inner edges of the elastic members 6, 6 (see FIG. 1). At the position indicated by the two-dot chain line), the second folded portion 5 is folded outwardly of the absorber 4 over the entire length thereof.
2 and 52 are formed (see FIGS. 2 to 4). As shown in FIG. 3, the first folded portions 51, 51 are linear fixing portions 7, 7 slightly inside the alternate long and short dash line shown in FIG. 1 and over a predetermined length in the crotch region. It is bonded and fixed to the topsheet 2 by means such as adhesive, heat welding, ultrasonic welding (the same applies hereinafter), and the length of the fixing portion 7 is preferably 20 to 100 mm in the longitudinal direction.

Further, although not shown, the second folded portions 52, 52 are fixedly joined to the first folded portions 51, 51 with a predetermined width in the crotch region to form a fixed portion, so that the topsheet 2 is always directed upward, and The second folded part 52, 52 when worn
It is preferable that each box is configured so as to prevent it from being folded inward and to be able to maintain the shape of the box 8 by imparting some rigidity to the second folded sections 52 by the fixing section. The fixing portion is provided between the inner edges of the elastic members 6 and 6 and the side edges of the absorber 4 in the longitudinal direction.
It is preferably functionally formed over a length of 20 to 100 mm. Thus, in the present disposable diaper 1 in which the first folded portion 51 and the second folded portion 52 are formed, the elastic elastic members 6, 6 are located at positions separated from the absorber 4 by the first folded portions 51, 51. It is configured to be located at a certain second folded portion 52,52. Accordingly, when the disposable diaper 1 is in the free state, the elastic members 6, 6 contract at the second folded portions 52, 52 to bend toward the surface side to form gathers, and the first folded portions 51, 51 are formed. Is raised, and a box 8 is formed by each of the first folded portions 51, 51 and the absorber 4 (see FIGS. 2 and 3).

Further, the elastic members 6, 6 disposed on the second folded portions 52, 52 are located so as to be deviated forward from the longitudinal center of the second folded portions 52, 52, and the second folded portions are provided at each position. As described above, the flat gathers 52 are formed on the respective 52, 52 so as to be surely tightly sealed in the crotch region. Reference numeral 9 denotes an adhesive area to which an adhesive for fixing the disposable diaper 1 to underwear is applied.

Thus, the topsheet 2 of the disposable diaper 1
The back sheet 3, the absorber 4, and the elastic member 6 can be formed of a conventionally known material.

Since this disposable diaper 1 has the above configuration,
Since the folded portions 51, 51 and the second folded portions 52, 52 hold the folded form, they can be quickly worn with the wearer, and after wearing, the second folded portion 52,
52 fits in contact with the crotch area, and the box 8 can be made in the crotch area by the first folded portions 51, 51. The second folded portions 52, 52 make surface contact with the circumference of the leg to ensure the inside. Can be sealed. Further, since both ends in the longitudinal direction of the absorber 4 are sealed in the first folded portions 51, 51, it is possible to effectively prevent bleeding leakage from the end of the absorber 4. Further, the absorbent 4 absorbs easily absorbable excrement, and the pockets 8 and 8 can capture and store hardly absorbable excrement such as stool, thereby reliably preventing leakage of excrement. be able to. In addition, the disposable diaper 1, the folded portion in the crotch region
Since they have a small bulk of 51 and 52 and have a shape conforming to the shape of the crotch of the user, they can be easily applied to the crotch, have an excellent wearing feeling, and can be worn with a good appearance when worn.

Further, in the present disposable diaper 1, since the elastic members 6 and 6 are separated from the absorber 4, the contraction force is not transmitted to the absorber 4, and it is possible to prevent the absorber 4 from twisting and setting. It is possible to further prevent leakage.

FIGS. 4 and 5 are views showing a disposable diaper for incontinent persons according to another embodiment of the absorbent article of the present invention, and the disposable diaper 1 of this embodiment is apparent from FIG. The position of the elastic members 6, 6 and the first folded portion 51,
Except for the difference in the position of the joint 51, the structure is the same as that of the disposable diaper shown in FIGS. That is,
The first folded portions 51, 51 are joined and fixed to the topsheet 2 at linear fixing portions 10, 10 over a predetermined length on both sides of the rear end of the absorber 4 in the longitudinal direction. The fixing part 10
Is preferably 20 to 100 mm in the longitudinal direction in terms of function. The elastic members 6, 6 are disposed in front of the second folded portions 52, 52, respectively. Therefore, in the disposable diaper 1, each elastic member 6, 6 contracts in a state where the first folded portions 51, 51 are fixed on both side edges of the rear end of the absorbent body 4, and each of the first and second elastic members 6, 6 is contracted. It is configured such that the box 8 is formed in the front by raising the one folded portion 51,51. According to this embodiment, when the elastic members 6, 6 contract when worn, the first folded portions 51, 51 rise up in that portion, and the box 8 is moved forward.
And can be suitably fitted to the crotch of a male incontinent person, and the same effects as the disposable diaper in the above embodiment can be expected.

FIG. 6 is a view showing a disposable diaper for an incontinent person, which is still another embodiment of the absorbent article of the present invention. As shown in FIG.
Except that the positions of the elastic members 6 and 6 and the positions where the first folded portions 51 and 51 are joined and fixed are different, they are all configured similarly to the disposable diaper shown in FIGS. 1 to 3. That is, the first
The folded portions 51, 51 are joined and fixed to the topsheet 2 at four fixing portions 10 on both sides of the front and rear ends of the absorber 4. According to the present embodiment, when the elastic members 6, 6 contract, the first folded portions 51, 51 in the crotch region stand up to form the box 8 in the crotch region,
It can be fitted to the crotch part of a female incontinent person, and the same operation and effect as the disposable diaper in each of the above embodiments can be expected.

According to each of the above embodiments, since the structure is simple,
In particular, since the width of the folded portion and the position of the joining point need only be changed as appropriate without a complicated design for men and women for incontinent persons, it is very advantageous in terms of manufacturing and processing.

The present invention is not limited to the disposable diapers described in the above embodiments, and the present invention is also applied to absorbent articles for sanitary and vaginal discharge treatment without departing from the gist of the present invention. can do.

Next, the following leakage test was performed on the disposable diaper of the present invention using a specific invention product, and the effect of preventing leakage was observed.

(Test example)

Test Example 1 In this test, the first folded portions 51, 51 were formed using the following materials.
Each was joined and fixed to the topsheet 2 by 30 mm in the crotch region to produce the product 1 of the present invention shown in FIG.

Next, the following leak test was performed using the product 1 of the present invention, and the results are shown in Table 1 below.

(1) Materials and dimensions ・ Surface sheet 2: non-woven fabric 40cm × 20cm × Back sheet 3: polyethylene film ・ Absorbent 4: 35cm × 15cm composite of fluff pulp and high absorbent polymer ・ Stretch elasticity Member 6: Polyurethane film, width 8 mm Leak test In this test, the product of the present invention was attached to an adult model for men or women capable of performing a leg-opening operation together with underwear.
After walking for a minute (equivalent to walking 50m), immediately after stopping walking, the following artificial urine is supplied from the tube so that the discharge speed from the discharge part becomes 5g / sec, and the supply amount of artificial urine until leakage occurs is measured. This is a test to see the effect of preventing leakage.

Artificial urine; physiological saline Test example 2 In this test, the same procedure as in the above-mentioned invention product 1 was carried out except that each of the first folded portions 51 was joined and fixed to the top sheet 2 at the rear end only in the longitudinal direction with a length of 80 mm. The product 2 of the present invention shown in FIG. 5 was produced by the above method, and then the above-mentioned leak test was performed using the product 2 of the present invention. The results are shown in Table 1 below.

Test Example 3 In this test, as shown in FIG.
1 and 51 each at 30mm only at the front and rear ends in the longitudinal direction
A product 3 of the present invention was prepared in the same manner as the product 1 of the present invention except that the product was fixed by bonding. Then, the leak test was performed using the product 3 of the present invention. The results are shown in Table 1 below.

Comparative Test Example 1 In this test, the first folded portions 51, 51, the second folded portion
A flat-type comparative product 1 having no 52 and 52 and having no fixing before and after was produced, and the leak test was performed using the comparative product 1, and the results are shown in Table 1 below.

Comparative Test Example 2 In this test, a comparative product 2 was prepared in which only the first folded portions 51, 51 and the second folded portions 52, 52 were formed, and these folded portions were not joined and fixed at all. The above-mentioned leak test was performed using product 2, and the result was
It is shown in the table.

According to the above test results shown in Table 1 below, it is understood that the products 1 to 3 of the present invention are superior to the comparative products 1 and 2 in the leakage prevention properties.

[Effects of the Invention] The absorbent article of the present invention is configured such that the longitudinal side edge of the absorber is folded inwardly of the absorber together with the side flap to form a first folded portion in the absorber and the first folded portion is formed by the absorber. In the side flap between the longitudinal side edge of the elastic member and the inner edge of the elastic member, the absorber is folded outward to form a second folded portion, and the first folded portion is formed by the crotch region on the top sheet side, the front end, And because it is fixed in at least one of the rear ends in the longitudinal direction, the structure is simple and the fit, sealability and wearing feeling at the crotch are excellent, and it is easy and inexpensive to produce regardless of gender. Is what you can do.

[Brief description of the drawings]

FIG. 1 is a plan view showing an intermediate product before forming a folded portion of a disposable diaper (for women) suitable for incontinent persons which is one embodiment of the absorbent article of the present invention, and FIG. 2 is FIG. 3 is a plan view showing a disposable diaper as a product provided with a folded part in the intermediate product shown in FIG. 3, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. 4 is another embodiment of the absorbent article of the present invention. 1 is a diagram corresponding to FIG. 1 showing a disposable diaper (for men) suitable for incontinent persons, FIG. 5 is a diagram corresponding to FIG. 2 showing the disposable diaper shown in FIG. 4, and FIG. FIG. 2 is a diagram corresponding to FIG. 1 showing a disposable diaper which is another embodiment of the article. 1; Disposable diaper (absorbent article) 2; Top sheet, 3; Back sheet 4; Absorber, 5; Side flap 6; Elastic elastic member 51; First folded part 52; Second folded part

Continued on the front page (56) References JP-A-57-210004 (JP, A) JP-A-59-88406 (JP, U) JP-A-57-13608 (JP, U) JP-A-60-163911 (JP, A) , U) Actually open 56-3211 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61F 13/15

Claims (8)

(57) [Claims] 1. A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber disposed between these two sheets, and a flexible member extending outward in the width direction of the absorber. Article having an elastic side flap and a stretchable elastic member disposed in the crotch region of the side flap in the longitudinal direction, wherein the longitudinal side edge of the absorber is formed along with the side flap with a first folded line. The side flap is folded inward of the absorber to form a first folded portion in which the absorber is present, and the first folded portion is formed between a longitudinal side edge of the absorber and an inner edge of the elastic member. At the same time, a second folded portion is formed by folding the absorber outward.
An absorbent article characterized in that the folded portion is fixedly joined to the top sheet side in the crotch region. 2. A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber disposed between these two sheets, and a flexible member extending outward in the width direction of the absorber. Article having an elastic side flap and a stretchable elastic member disposed in the crotch region of the side flap in the longitudinal direction, wherein the longitudinal side edge of the absorber is formed along with the side flap with a first folded line. The side flap is folded inward of the absorber to form a first folded portion in which the absorber is present, and the first folded portion is formed between a longitudinal side edge of the absorber and an inner edge of the elastic member. At the same time, a second folded portion is formed by folding the absorber outward.
An absorptive article characterized in that the folded portion is fixedly joined to the top sheet at at least one of its longitudinal ends. 3. A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber disposed between these two sheets, and a flexible member extending outward in the width direction of the absorber. Article having an elastic side flap and a stretchable elastic member disposed in the crotch region of the side flap in the longitudinal direction, wherein the longitudinal side edge of the absorber is formed along with the side flap with a first folded line. The side flap is folded inward of the absorber to form a first folded portion in which the absorber is present, and the first folded portion is formed between a longitudinal side edge of the absorber and an inner edge of the elastic member. At the same time, a second folded portion is formed by folding the absorber outward.
An absorbent article characterized in that the folded portion is fixedly joined to the top sheet at least at one of the crotch region and the front and rear ends in the longitudinal direction. 4. The absorbent article according to claim 1, wherein said second folded portion is fixedly joined to said first folded portion in a crotch region. 5. The apparatus according to claim 5, wherein the first folded portion is formed in a longitudinal direction of 20 to 100 m.
(1) The joint is fixed at a length of m.
The absorbent article according to any one of (4) to (4). 6. The apparatus according to claim 6, wherein the second folded portion is disposed between the inner edge of the elastic member and the side edge of the absorber in the longitudinal direction.
The absorbent article according to any one of claims (1) to (5), wherein the absorbent article is joined and fixed at a length of 20 to 100 mm. 7. The absorbent article according to claim 1, wherein said stretchable elastic member is disposed so as to be deviated rearward from a longitudinal center of the absorbent article. . 8. The absorbent article according to claim 1, wherein said stretchable elastic member is disposed so as to be deviated forward from a longitudinal center of the absorbent article. .