JPH09192154A - Liquid absorbing pad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a liquid leakage from being easely occurred from the outer peripheral part of a pad and the prickliness of the (thin and sharp) outer peripheral edge of the pad by being abutted to the skin at the time of mounting which happen in a conventional liquid absorbing pad. SOLUTION: An annular rib part 4 composed of a flexible material is formed at a position surrounding the outer side of an absorbent 3 on the surface on a human body contact side of a pad main body 1. The liquid leakage from the outer peripheral part of the pad is prevented by the rib part 4 and the outer peripheral edge of a wrapping material 2 is prevented from being brought into direct contact with the skin in a pad mounting state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid absorbing pad for absorbing liquid leaking from the human body, such as a breast milk pad, urinary incontinence pad and sanitary pad.

[0002]

2. Description of the Related Art This type of liquid absorbent pad (breast milk pad,
Urinary incontinence pads, sanitary pads, etc.) are configured by enclosing an absorbent material for absorbing liquid with a packaging material. At the time of mounting, the packaging material uses a waterproof sheet for an outer portion and a water-permeable sheet for an inner portion. And this kind of liquid absorbing pad is formed by heat-sealing the outer peripheral edges of the waterproof sheet and the water-permeable sheet with the absorbent material sandwiched between the outer waterproof sheet and the inner water-permeable sheet. I have.

By the way, this type of liquid absorbing pad covers the breast, urinary organs, vaginal opening, etc., and absorbs liquids such as extra milk, incontinence urine, and menstrual fluid with an absorbent material. When the amount of liquid held by the liquid exceeds the limit, or when the center of the pad is largely displaced from the predetermined position, the liquid leaked from the human body may leak out from the outer peripheral portion of the pad.

[0004]

However, in the conventional liquid absorbent pad (breast milk pad, urinary incontinence pad, sanitary pad, etc.), since the absorbent material is simply covered with the packaging material, as described above. If the amount of liquid held by the pad exceeds the limit or if the pad mounting position shifts significantly, liquid may leak from the outer periphery of the pad. There was a problem of soiling bedding and the like.

Further, in the conventional liquid absorbing pad, the outer peripheral edge portion is thin and relatively "strained" because the both front and back sheets of the packaging material are simply heat-sealed, and it is stiff. There is a problem that the liquid absorbent pad feels and when the liquid absorbent pad is worn on the body, the edge of the pad abuts on the skin and the feeling of wearing deteriorates (scratches).

In view of the above-mentioned conventional problems, the present invention has been made for the purpose of providing a liquid absorbing pad capable of preventing liquid leakage as much as possible and improving the feeling of wearing. It is a thing.

[0007]

The present invention has the following structure as means for solving the above-mentioned problems. That is, the present invention is a liquid absorbent pad for absorbing liquid leaking from the human body such as a breast milk pad, a urinary incontinence pad, and a sanitary pad, and the absorbent body is covered with a packaging material to form a pad body. In addition, an annular ridge portion made of a flexible material is formed at a position surrounding the outside of the absorbent material on the surface of the pad body on the human body contact side.

As the absorbent, general-purpose ones can be used, and for example, those obtained by appropriately combining and laminating water-absorbing paper, a hygroscopic polymer sheet, cotton-like pulp and the like can be used.

In the packaging material, a waterproof sheet is used for an outer portion at the time of mounting, and a water-permeable sheet is used for an inner portion. In this liquid absorbing pad, the inner water-permeable sheet surface of the packaging material is the surface on the human body contact side.

In this liquid absorbing pad, the outer peripheral edge portions of the waterproof sheet and the water-permeable sheet are thermally fused to each other with the absorbent material sandwiched between the outer waterproof sheet and the inner water-permeable sheet. Is formed.

The ridge portion is formed in an annular shape on the outer peripheral portion (outside of the absorbent material) of the surface of the water-permeable sheet of the packaging material. The ridge portion has a function of contacting the skin in a state where the pad is attached and blocking the liquid (surplus milk, incontinence urine, menstrual fluid, etc.) that cannot be completely absorbed by the absorbent material. As a material for the ridges, it is preferable to use a material having flexibility such as a heat-expandable resin and having a particularly soft feel.

The liquid absorbent pad of the present invention is attached to a predetermined part of the human body so that the surface on the side where the ridges are formed faces the inner surface (the side in contact with the skin). It is possible to prevent the liquid absorbent pad from being displaced by wearing underwear (shirt, pants, etc.) on the liquid absorbent pad in the mounted state. Also, in this way, when the liquid absorbing pad is mounted,
Since the liquid absorbent pad is pressed against the skin side with underwear and the ridges are made of a flexible material, the entire liquid absorbent pad is deformed along the skin shape at the use position. At this time, the annular convex portion comes into contact with the skin over the entire circumference. When liquid such as extra milk, incontinence urine, or menstrual fluid leaks from the body in this mounted state, the liquid is absorbed by the absorbent material. Further, when the liquid holding capacity of the absorbent material is exceeded, the liquid that cannot be retained will be released from the absorbent material, because the released liquid is in contact with the skin due to the annular ridges. It will be blocked there and will be less likely to leak out of the pad carelessly. Further, when the center of the mounted pad is largely deviated from the predetermined position to one side, the liquid leaked from the body easily leaks to the outside of the pad. When the skin touches the skin, the liquid leaked from the body is blocked by the ridge. Also, since the ridge portion is formed in an annular shape on the outer peripheral portion of the pad,
The outer peripheral edge of the packaging material does not come into direct contact with the skin when the pad is attached.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. 1 to 6, and FIGS. 1 to 2 show a first embodiment, and FIGS. 3 to 4 show a second embodiment. 5 to 6, the liquid absorbing pads of the third embodiment are respectively shown. In addition, a breast milk pad is used in the first embodiment shown in FIGS. 1 to 2, and a urinary incontinence pad (the sanitary pad also has the same shape) is used in the second embodiment shown in FIGS. 3 to 4. ,
The third embodiment shown in FIGS. 5 to 6 employs a male urinary incontinence pad.

First, in each of the first to third embodiments,
The configuration of the common part will be described. In the liquid absorbent pad of each of the embodiments, reference numeral 1 is a pad body, and the pad body 1 is formed by covering the absorbent material 3 with the packaging material 2.

As the absorbent material 3, a general-purpose material can be used, and for example, a laminated material obtained by appropriately combining water-absorbing paper, a moisture-absorbing polymer sheet, cotton-like pulp and the like can be used.
The absorbent material 3 is formed into a predetermined shape and a predetermined size according to the application.

At the time of mounting, the packaging material 2 uses a waterproof sheet 21 on the outside and a water-permeable sheet 22 on the inside. As the outer waterproof sheet 21, for example, a laminate of a nonwoven fabric and a synthetic resin waterproof film can be used. On the other hand, as the inner water-permeable sheet 22, for example, a nonwoven fabric can be used.

In the liquid absorbent pad of each embodiment, the outer peripheral edge portions of the waterproof sheet 21 and the water permeable sheet 22 are sandwiched between the outer waterproof sheet 21 and the inner water permeable sheet 22 with the absorbent material 3 interposed therebetween. Is heat-sealed to form the pad body 1. The heat-sealing portion 23 of the packaging material 2 has a width of, for example, about 5 to 10 mm over the entire circumference.

On the surface of the pad body 1 on the human body contact side (the side of the water permeable sheet 22), an annular ridge portion 4 is formed on the outer peripheral portion (heat fusion portion 23) thereof. The ridge portion 4 is made of a flexible material and allows the pad body 1 to freely bend. The ridge portion 4 has a function of coming into contact with the skin when the pad is attached and blocking the liquid (such as extra milk, incontinence urine, menstrual fluid, etc.) that cannot be completely absorbed by the absorbent material 3.

As the material of the ridge portion 4, for example, acrylic emulsion resin (alternatives, urethane emulsion resin, NBR emulsion resin, SBR emulsion resin, ethylene vinyl acetate emulsion resin, etc. can be used). A mixture of heat-expandable microcapsules (for example, Matsumoto Yushi-Seiyaku Co., Ltd. trade name; Matsumoto Micro Square) in appropriate amounts can be used. Thus, when the heat-expandable emulsion resin is used, the emulsion resin is applied to the heat-sealed portion 23 (the water-permeable sheet 22 side) of the packaging material 2 and dried (for example, at a temperature of 50 ° C.
After letting it work for 0 minutes, it is heated to a predetermined temperature (for example, 120 to 160).
By heating at a temperature of (° C.) for a predetermined time (for example, 1 to 3 minutes), it is possible to form the annular ridge portion 4 that bulges in a semicircular cross section as shown in FIGS. 2, 4, and 6. Incidentally, it is appropriate that the protruding height of the ridge portion 4 is about 5 mm. When a thermally expansive emulsion resin is used for the ridge portion 4, it is possible to apply it in a dot shape with a small interval, but the linear continuous application gives a better finish. . Further, as a method of forming the ridge portion 4 using the heat-expandable emulsion resin, a state in which the emulsion resin is impregnated in an appropriate amount in the outer peripheral portion of the pad body 1 (the heat-sealing portion 23 of the packaging material 2) You may make it heat at.

As the material for the ridge portion 4, a heat-expandable emulsion resin is inexpensive and easy to process (suitable for mass production), but it is formed into an annular shape with, for example, rubber or soft synthetic resin. May be attached to the heat-sealing portion 23 of the packaging material 2 by a method such as sticking.

The liquid absorbent pad according to the first embodiment shown in FIGS. 1 and 2 is formed into a circular bowl shape and is used as a breast milk pad. In this case, it is advisable to form several sizes.

The liquid absorbent pad of the second embodiment shown in FIGS. 3 and 4 is formed in an elongated shape and used as a urinary incontinence pad. The liquid absorbent pad of the second embodiment can also be used as a sanitary pad if its size is reduced.

The liquid absorbing pad according to the third embodiment shown in FIGS. 5 and 6 has a convex portion 5 that bulges outward at approximately the center.
And is used as a urinary incontinence pad especially for men. The convex portion 5 is formed by press molding during pad molding. In the liquid absorbent pad according to the third embodiment, the male urinary organs are accommodated in the void inside the convex portion 5 when worn. Therefore, when this liquid absorbing pad is used, the urinary organ is not tightened by the pad, and the wearing feeling is improved.

The liquid absorbent pad of each of the first to third embodiments is attached to a predetermined part of the human body so that the surface on the side where the ridge 4 is formed faces the inner surface (the side in contact with the skin). .
It is possible to prevent the liquid absorbent pad from being displaced by wearing underwear (shirt, pants, etc.) on the liquid absorbent pad in the mounted state. Further, as described above, when the liquid absorbent pad is attached, the liquid absorbent pad is pressed against the skin side by the undergarment, and the ridges 4 are made of a flexible material, so that the entire liquid absorbent pad is in the use position. It will deform along the skin shape. At this time, the annular ridge 4
Comes into contact with the skin over almost the entire circumference. When liquid such as extra milk, incontinence urine, or menstrual fluid leaks from the body in this mounted state, the liquid is absorbed by the absorbent material 3. Further, when the liquid holding capacity of the absorbent material 3 is exceeded, the liquid that cannot be held will be released from the absorbent material 3, but the free water will come into contact with the skin by the annular ridges 4. Therefore, it is blocked there, and it becomes difficult for it to accidentally leak outside the pad. If the center of the attached pad is greatly deviated from the predetermined position to one side,
The liquid leaked from the body easily leaks to the outside of the pad. However, when the ring-shaped ridge 4 is in contact with the skin on the outer periphery of the pad, the liquid leaked from the body is dammed by the ridge 4. You will be able to stop. Further, since the ridge portion 4 is formed in an annular shape in the pad outer peripheral portion (heat-sealing portion 23), the outer peripheral edge of the packaging material 2 does not come into direct contact with the skin when the pad is attached, and the feeling of attachment is good. Is improved (the edge of the heat-sealing portion 23 does not hit the skin and tingle).

[0025]

As described above, in the liquid absorbent pad of the present invention, the ring-shaped ridges 4 on the outer periphery of the pad come into contact with the skin and act as a dam in the mounted state, so that the liquid retaining capacity by the absorbent 3 is limited. Even if it exceeds the limit or the center of the attached pad is deviated from the predetermined position to one side, the liquid leaked from the body will not easily accidentally leak to the outside of the pad, and there is an effect of preventing liquid leakage. .

Further, since the ridge portion 4 is formed in an annular shape in the pad outer peripheral portion (heat sealing portion 23), the outer peripheral edge of the packaging material 2 does not come into direct contact with the skin when the pad is attached, There is an effect that the wearing feeling is improved (the edge of the heat-sealing portion 23 does not hit the skin and tingling).

[Brief description of the drawings]

FIG. 1 is a plan view seen from an inner surface side of a liquid absorbent pad (breast milk pad) according to a first embodiment of the present invention.

2 is a right side view showing a cross section of the upper half of the liquid absorbent pad of FIG. 1. FIG.

FIG. 3 is a plan view of the liquid absorbent pad (urinary incontinence pad) according to the second embodiment of the present invention as viewed from the inner surface side.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is a plan view seen from the inner surface side of the liquid absorbent pad (urinary incontinence pad for men) according to the third embodiment of the present invention.

FIG. 6 is a sectional view taken along line VI-VI of FIG.

[Explanation of symbols]

1 is a pad main body, 2 is a packaging material, 3 is an absorbent material, 4 is a ridge portion,
Reference numeral 21 is a waterproof sheet, 22 is a water-permeable sheet, and 23 is a heat-sealing portion.

Claims (1)

[Claims] 1. A pad body (1) is formed by encapsulating an absorbent material (3) with a packaging material (2), and the absorbent material (3) on the surface of the pad body (1) on the human body contact side. A liquid absorbing pad, characterized in that an annular convex portion (4) made of a flexible material is formed at a position surrounding the outer side of the liquid absorbing pad.