JP2559646Y2 - 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, which aims to prevent excretions such as urine and loose stool from leaking sideways and to prevent skin irritation.

[0002]

2. Description of the Related Art Conventionally, a device disclosed in Japanese Utility Model Publication No. 61-38882 is known as a disposable diaper for preventing contact between excrement and skin. In this diaper, a liquid-absorbing absorbing layer is interposed between a liquid-impermeable surface layer and a liquid-impermeable leakproof layer. An opening is provided in the surface layer to enable excrement to be absorbed into the absorbing layer.

[0003] This diaper has the advantage that excrement does not penetrate to the surface side in the portion covered by the liquid impermeable surface layer even if the absorbent layer absorbs to a saturated state.

[0004] However, the diaper of this proposal has a drawback that when the area of the opening is formed large, the contact area between the absorbing layer and the skin becomes large, so that the effect of preventing the wet back by the surface layer is reduced.

On the other hand, if the opening is formed with a small area, the opening and the excretion part of the wearer tend to shift, so that the excrement flows on the surface of the surface layer without being absorbed by the absorbing layer. Therefore, it has a disadvantage that side leakage is very likely to occur.

[0006] Further, in this diaper, since the absorbent layer and the surface layer are in close contact with the skin, the excrement easily comes into contact with the skin, giving the wearer discomfort.

Further, in order to eliminate the above-mentioned drawbacks, a method is proposed in which a gap is formed between the skin and the absorbing layer so that the excrement and the skin are brought into a non-contact state, as disclosed in JP-A-61-41304. The described invention exists. In the diaper according to the present invention, the surface of the absorbing layer is covered with a hydrophobic surface sheet, and elastic bodies are fixed to both sides of the opening provided in the surface sheet. The diaper, when worn, raises the top sheet from the absorbent layer, forms a gap between the absorbent layer and the top sheet, and this gap forms the skin in contact with the top sheet, and the skin and the absorbent layer The purpose is to prevent contact with the skin and to prevent skin irritation.

However, this conventional diaper does not have a waterproof treatment or a waterproof sheet attached to the inner surface of the front sheet. For this reason, the water content of the excrement permeates the front sheet, and tends to cause fogging due to wet back and lateral leakage.

[0009] In addition, most of the time during which the diaper is worn on the wearer is such that excretion is not excreted. If excretion is present, the wearer, such as a baby, may express discomfort. , Mothers, etc. can easily exchange.

However, in the conventional diapers proposed above, since the leak-proof layer is formed of a liquid and vapor impermeable material, it is possible for the wearer to exclude moisture and vapor generated by sweating to the outside. Can not.

[0011] Therefore, the inside of the diaper in a non-excreted state is liable to be moistened by moisture or vapor, causing discomfort to the wearer for a long time, or causing rash due to stuffiness in the worn part. Was.

[0012]

[Problems to be Solved by the Invention] The present invention is to solve the problems as described above, and when the diaper is worn, the excrement such as urine and loose stool is prevented from coming into contact with the skin,
Even when the amount of excrement absorbed is large, lateral leakage can be prevented.

[0013] Further, even when the diaper is worn on a wearer for a long time, the moisture and vapor inside the non-excreted diaper are transmitted to the outside to enable a hygienic wearing with a good feeling of wearing. is there.

[0014]

According to the present invention, in order to solve the above-described problems, a leak-proof layer is formed of a liquid-impermeable, vapor-permeable, moisture-permeable material. By interposing a liquid-absorbing absorbent layer having a smaller area than the surface layer and the leak-proof layer between the surface layer and the surface layer, side flaps and end flaps are formed on the outer periphery of the absorbent layer, and each flap has elasticity. The body is fixed, side gathers and waist gathers are formed, and the outer periphery of the water-repellent covering sheet is fixed to the surface of each flap, and an opening is formed on the inner periphery of the covering sheet. An elastic body is located on the inner surface on both sides on the side flap side, and the surface of the elastic body is covered with a liquid-impermeable waterproof sheet fixed to a covering sheet to form a side leakage prevention piece. In the contraction direction by the elastic body It was energized, those obtained by forming to be launched on both sides of the absorption layer.

[0015]

Since the present invention is constructed as described above,
In the diaper in the open state, the side leakage prevention pieces rise up like weirs on both sides of the absorbent layer due to the contraction of the elastic body of the side leakage prevention pieces,
The opening provided in the water-repellent coating sheet is expanded. At the same time, the absorbing layer is curved toward the side forming the interval from the opening.

When the diaper is worn on the wearer, the opening of the expanded covering sheet is positioned at the excretion part of the wearer,
Also, the side leakage prevention pieces on both sides of the opening rise in a weir shape. Since the side leakage preventing piece comes into contact with the skin, a gap is formed between the skin and the surface layer covering the absorbing layer, so that the surface layer and the absorbing layer are not in contact with the skin.

For this reason, excretions such as urine and loose stool are directly excreted through the opening of the covering sheet and at the interval between the skin and the surface layer, and do not come into contact with the covering sheet. To prevent skin contamination due to contact with the skin.

Also, the wearer takes a posture such as sitting down,
Even if the wearer's weight is applied to the side leakage prevention piece, the rise of the side leakage prevention piece temporarily decreases, but due to the contraction force of the elastic body, the side leakage prevention piece comes into close contact with the skin and forms a weir-like shape. As a result, the side leakage preventing pieces cover both sides of the absorption layer, thereby preventing side leakage.

Further, since the side leakage preventing pieces raised on both sides of the absorbing layer are formed on the surface side with a water-repellent covering sheet, even if the wearer's skin becomes wet with moisture such as sweat, Moisture is repelled by the water-repellent effect of the cover sheet, so that the skin does not have a discomfort of discomfort.

Further, since the liquid leakage impervious waterproof sheet is fixed to the inner surface side of the side leakage prevention piece, even when the diaper absorbs beyond the absorption capacity of the absorbent layer, the waterproof effect of the waterproof sheet is obtained. As a result, urine and the like are repelled and transmission to the cover sheet on the front surface side is prevented, so that a reliable lateral leakage prevention effect can be obtained.

When the diaper is excreted, the mother or the like exchanges the diaper in order for the wearer to express discomfort. However, the inside of the diaper in the worn state is sealed by the side gathers provided on the side flaps and the waist gathers provided on the end flaps, and even if there is no excretion by the wearer, moisture or vapor is generated due to sweating etc. easy.

Even in such a case, the diaper of the present invention is
Since the leak-proof layer is formed of a liquid-impermeable and vapor-permeable moisture-permeable material, moisture and steam can pass through the leak-proof layer. For this reason, even if the diaper is worn for a long time without being excreted,
There is no dampness or steam inside the diaper, which prevents rash due to stuffiness and enables sanitary wearing.

Further, when excretion is performed, urine and the like do not flow out due to the liquid-impermeable leak-proof layer.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. (1) is a leak-proof layer formed of a liquid-impermeable and vapor-permeable moisture-permeable material such as a liquid-permeable surface layer ( A liquid absorbing layer (3) having a smaller area than the surface layer (2) and the leakage preventing layer (1) is interposed between the surface layer (2) and the leakage preventing layer (1).

On the outer periphery of the absorbing layer (3), side flaps (4) and end flaps (5) and (6) composed of a surface layer (2) and a leak-proof layer (1) are formed. A plurality of band-like elastic bodies (7) are fixed to the (4) and the end flaps (5) and (6) to form side gathers (8) and waist gathers (10).

The surface of the side flaps (4) and the end flaps (5) and (6) are coated with a water-repellent coating sheet.
The outer periphery of (11) is fixed. This covering sheet (11)
Forms a large opening (12) in the inner circumference, and this opening
The opening area of (12) and the area of the absorbing layer (3) on the surface layer (2) side have a relationship of 0.5: 1 to 0.7: 1.

The covering sheet (11) has an opening (12).
A plurality of thread-like elastic bodies (13) are located on the inner surfaces on both sides of the side flap (4).

Then, the surface of the elastic body (13) is fixed to the covering sheet (11) by a liquid-impermeable waterproof sheet (14).
Forming a lateral leakage prevention piece (15) on both sides of the opening (12), and urges the lateral leakage prevention piece (15) in the contraction direction by the elastic body (13) to form an absorbing layer ( It is possible to start up in a weir shape on both sides of 3).

A fastening tape (16) is formed on both sides on the back side of the side flap (4), and the fastening tape (16) is formed.
Is fixed to the ventral end flap (6), so that the dorsal end flap (5) and the ventral end flap (6) can be connected in a ring shape.

In the above-structured diaper (17) in the open state, the elastic member (13) of the side leakage preventing piece (15) is used.
Due to the contraction of the lateral leakage preventing pieces (15) on both sides of the absorbent layer (3)
Rises like a weir, and expands the opening (12) provided in the water-repellent covering sheet (11).

At the same time, due to the contraction of the elastic body (13), the absorbing layer (3) curves outward together with the surface layer (2),
Between the skin contact side of the side leakage prevention piece (15) and the surface layer (2),
A large non-contact interval (18) results.

When the diaper (17) is worn on the wearer, the opening (12) of the expanded covering sheet (11) is located at the excretion part of the wearer, and the opening (12) is located on both sides of the opening (12). The leak prevention piece (15) rises like a weir. This side leakage prevention piece (1
Since 5) comes into contact with the skin, a non-contact interval (18) is formed between the skin and the surface layer (2) covering the absorbent layer (3).
The surface layer (2) and the absorbing layer (3) do not come into contact with the skin.

For this reason, excretions such as urine and loose stool do not come into contact with the surface of the covering sheet (11) but directly through the opening (12) of the covering sheet (11) and the skin (2). Non-contact interval with
Excretion in (18) makes it possible to prevent skin contamination due to contact with excrement.

Also, the wearer takes a posture such as sitting down,
Even when the wearer's weight is applied to the lateral leakage prevention piece (15), the rise of the lateral leakage prevention piece (15) temporarily decreases, but the lateral leakage prevention piece is contracted by the elastic body (13). Since the piece (15) comes in close contact with the skin and rises like a weir, the absorbent layer
Both sides of (3) are covered with side leakage prevention pieces (15), so that side leakage can be prevented.

Further, the side leakage preventing pieces (15) raised on both sides of the absorbing layer (3) have a water-repellent covering sheet (11) on the surface side.
Therefore, even if the wearer's skin is moistened with moisture such as sweat, the moisture is repelled by the water-repellent effect, and the skin is not discomforted.

Further, since the liquid leakage impervious waterproof sheet (14) is fixed to the inner surface side of the side leakage prevention piece (15), the diaper (17) exceeds the absorption capacity of the absorbent layer (3). Even if absorbed, the urine etc. is repelled by the waterproofing effect of the waterproofing sheet (14) and is prevented from penetrating to the covering sheet (11) on the front side, so that a reliable lateral leakage preventing effect can be obtained. Becomes

When the diaper (17) is excreted, the mother or the like exchanges the diaper (17) in order to express discomfort to the wearer. However, the inside of the diaper (17) in the worn state is sealed by the side gathers (8) and the waist gathers (10), and moisture and vapor are easily generated by sweating or the like even if the wearer does not excrete.

In such a case, the diaper of the present invention (1)
In 7), since the leak-proof layer (1) is formed of a liquid-impermeable and vapor-permeable moisture-permeable material, moisture and steam can pass through the leak-proof layer (1). Therefore, even if the diaper (17) is worn for a long time in a non-excretion state, the inside of the diaper (17) does not contain moisture or steam, preventing rash due to stuffiness, Sanitary mounting is possible.

When excretion is performed, urine and the like do not flow out due to the liquid-impermeable leakproof layer (1).

[0040]

[Effects of the Invention] Since the present invention is constructed as described above, when the diaper is worn, excrement such as urine and loose stool is covered with the skin and the absorbent layer through the opening of the covering sheet. It can be excreted at the distance from the surface layer. This makes it possible to prevent skin contamination due to contact with excrement.

Further, the side leakage preventing piece does not repel moisture such as sweat by the water-repellent covering sheet provided on the front side, and does not give a discomfort to the skin.

Further, even when the diaper absorbs beyond the absorption capacity of the absorbent layer, the side leakage preventing piece does not allow the diaper to penetrate through the covering sheet on the front side due to the waterproofing effect of the waterproofing sheet. Side leakage can be prevented.

Also, even if the wear is performed for a long time in a non-excretion state, the leak-proof layer transmits moisture and vapor which cause stuffiness, so that sanitary wear can be prevented while preventing rash. is there.

[Brief description of the drawings]

FIG. 1 is a perspective view.

FIG. 2 is a plan view of a diaper showing an extended state of an elastic body.

FIG. 3 is a plan view of a diaper showing a contracted state of an elastic body.

FIG. 4 is an enlarged end view taken along line AA of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Leak prevention layer 2 Surface layer 3 Absorption layer 4 Side flap 5 End flap 6 End flap 7 Elastic body 8 Side gather 10 Waist gather 11 Cover sheet 12 Opening 13 Elastic body 14 Waterproof sheet 15 Side leakage prevention piece

Claims (1)

(57) [Scope of request for utility model registration] 1. A leak-proof layer is formed of a liquid-impermeable, vapor-permeable, moisture-permeable material, and a smaller layer between the leak-proof layer and the liquid-permeable surface layer than the surface layer and the leak-proof layer. By interposing a liquid-absorbent absorbent layer having an area, side flaps and end flaps are formed on the outer periphery of the absorbent layer, and an elastic body is fixed to each flap to form side gathers and waist gathers. The outer periphery of the water-repellent covering sheet is fixed to the surface of each flap, an opening is formed in the inner periphery of the covering sheet, and an elastic body is located on both inner surfaces on the side flap side of the opening. Is coated with a liquid-impermeable waterproof sheet fixed to the covering sheet to form a side leakage prevention piece, and the side leakage prevention piece is urged in the contraction direction by an elastic body, and is applied to both sides of the absorbent layer. It is characterized by being formed so that it can be started up Disposable diapers.