JPH0192403A - Disposable diaper - Google Patents

Abstract

PURPOSE: To prevent leakage from occurring even when an infant violently moving wears a diaper by forming respective lateral parts of a diposable diaper into a special shape and installing bonding means in specific places. CONSTITUTION: This disposable diaper is obtained by regulating the respective both lateral parts 9 and 10 and 12 and 13 of both ends 8 and 11 thereof to dimensions so as to extend from the vicinity of the roots of the thighs of a user to positions around the waist and respectively installing bonding means 14, 16 and 17 so as to keep both the vicinities of the roots of the thighs and the positions around the waist in a connected state. Elastically stretchable treatments 18, 19, 21 and 22 are preferably carried out in parts corresponding to the parts around the waist of the wearer and the roots of the thighs.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to disposable diapers, and particularly to pants-type disposable diapers.

[Prior Art] Disposable diapers, from the viewpoint of materials, generally include: a water-permeable inner material that comes into contact with the wearer's skin, a waterproof outer material facing outward, and a combination of the inner material and the outer surface. It has a laminated structure that includes a water-absorbing material sandwiched between the material and the absorbent material.

On the other hand, from the viewpoint of wearing conditions, pants-type disposable diapers are currently the mainstream. A pant-type disposable diaper has an approximately rectangular unfolded shape as a whole, but when the disposable diaper is put into a worn state, the approximately central portion in the longitudinal direction of the disposable diaper is located in the wearer's crotch, In addition, each side of one end in the longitudinal direction located on the ventral side of the wearer and each side part of the other end in the longitudinal direction located on the back side of the wearer are overlapped and connected. Ru.

The above-mentioned pants-type disposable diaper does not interfere with the movement of infants, and even when the infant is exercising,
It has the advantage of following body movements relatively well.

[Problems to be Solved by the Invention] However, although pants-type disposable diapers have the above-mentioned advantages, as infants grow older, it has become clear that they are still insufficient in terms of leakage prevention, etc. Ta.

Infants are bedridden for a while after birth, but as they grow older, their physical activity increases and their physical activity becomes more intense.

For example, at 7 to 8 months old, infants begin to perform movements such as "crawling,""standing," and "walking."
As they grow further, they begin to perform movements such as running and jumping. In this way, when you exercise a lot and exercise vigorously, unlike the days when you were bedridden, for example, the elastic gears to prevent leakage that come into contact with the base of your thighs become uneven, or the absorbent material becomes uneven. It turns out that this can cause leaks.

Furthermore, as infants grow older, they tend to dislike wearing diapers. It is presumed that this is because they are less comfortable to wear than ordinary underwear made of stockinette or the like.

On the other hand, mothers, etc., will eventually have to take off the diaper, depending on the degree of growth of the infant, and it is necessary to judge the timing. However, in normal cases,
When children first take off diapers, they often fail to urinate, so during the transitional period until they can completely wean off diapers, training pants may be used to temporarily prevent urine leakage. Something happened.

Therefore, it is an object of the present invention to provide a disposable diaper particularly suitable for older infants.

[Means for Solving the Problems] According to the present invention, there is little possibility of leakage even when worn by an infant who does a lot of exercise and is active.
Disposable diapers are provided that can provide a feeling of wearing comparable to regular δ pants and can also be used as a substitute for training pants.

The disposable diaper according to the present invention includes a water-permeable inner surface material that comes into contact with the wearer's skin, a waterproof outer surface material that faces outward, and a water-absorbing material that is sandwiched between the inner surface material and the outer surface material. It has a laminated structure including material, and has a generally rectangular unfolded shape as a whole, with its longitudinal center approximately located in the wearer's crotch, and its longitudinal direction located on the wearer's ventral side. The wearable state is achieved by overlapping each side of one end and each side of the other end in the longitudinal direction located on the user's back side to form a connected state, and the above-mentioned In order to meet these demands, it is characterized by the following configuration.

That is, each side of the one end and the other end has a dimension that extends from near the base of the wearer's thighs to a position around the waist, and near the base of the wearer's thighs. and adhesive means for establishing the connected state at both the waist circumference positions.

As the adhesive means, for example, one containing a viscous agent such as a pressure-sensitive adhesive tape is used.

Further, in a preferred embodiment of the present invention, the one end portion and the other end portion, which correspond to the wearer's waist, are treated to be elastically expandable and contractible. Furthermore, it is preferable that the portion corresponding to the base of the wearer's thighs also be treated to be elastically stretchable.

Furthermore, it is preferable to use a composite material having a laminated structure of a waterproof resin sheet facing inward and a nonwoven fabric facing outward as the external material.

[Operations and Effects of the Invention] According to this invention, in the worn state, each side of one end located on the ventral side of the wearer and each side of the other end located on the back side of the wearer are , the left side has a dimension of 6, extending from the vicinity of the base of the wearer's thighs to the position around the waist, and is connected by bone attachment means both near the thigh joint and at the position around the waist. For,
When in such a state of need, it can take on the form of regular pants. Conventional disposable diapers called pants-type diapers do not have adhesive means to connect them, especially near the base of the thighs, so even though they are pants-type disposable diapers, this part
As a result of vigorous exercise by infants and young children, they may separate and cause leakage, or this may cause the elastic gears that act near the base of the thighs to slip out of place. or the absorbent material is uneven,
However, according to this invention, this phenomenon does not occur even after infants have exercised vigorously, so leakage can be more effectively prevented. be able to.

Furthermore, according to the present invention, since the connection state is achieved even near the base of the thighs, the disposable diaper fits better around the base of the thighs, and therefore provides excellent wearing comfort for infants. What you can do and what you can do,
1#J is done.

Further, according to the present invention, each side of the one end and the other end are connected from the vicinity of the base of the wearer's thighs to the position around the waist, so that after wearing the The pants can take the same form as regular pants, and can therefore be advantageously used as a substitute for training pants. When used as a substitute for training pants, even if the pants fail to urinate, there is no need to wash and reuse them like regular training pants, and they can be thrown away as is.

In addition, if the adhesive means is divided into a first adhesive means for connecting the vicinity of the base of the thigh and a second adhesive means for connecting the position around the waist, it is possible to In this case, for example, if only the first osteotomy means is in a liquid tube state, the disposable diaper can be worn in the same way as ordinary pants are worn. Furthermore, if the part around the waist of the wearer is treated to be elastically expandable, even if both the first and second bone fixing means are in the extubated state, both young and premature prolapses will normally occur. It can be handled in the same way as pants.

In addition, if the part that corresponds to the base of the wearer's thighs is treated to be elastically stretchable, it will fit better to the base of the wearer's thighs, but will not make the wearer feel cramped. can.

In addition, if a material with a laminated structure of a waterproof resin sheet facing inward and a non-woven material II facing outward is used as the outer material, compared to conventional disposable diapers in which the waterproof resin sheet faces outward. , the feel to the outside can be made even better. Therefore, it is possible to prevent the garment from giving the feel or appearance of a diaper, and to give the impression of pants made of ordinary textile products. In that sense, this disposable diaper can be used as if the child were wearing regular pants.

[Description of Examples] FIG. 1 is a perspective view showing a disposable diaper as an example of the present invention when it is in a worn state.

As can be seen from the state shown in FIG. 1, this disposable diaper includes a water-permeable inner surface material 1 that comes into contact with the user's skin, and a waterproof outer surface material 2 that faces outward. FIG. 2 shows a developed view of this disposable diaper, with the inner surface material 1 facing upward. FIG. 3 also shows a developed view, but with the outer surface member 2 facing upward. FIG. 4 is an enlarged sectional view taken along the line TV--TV in FIG. 2.

As shown in FIGS. 2 and 3, this disposable diaper has an approximately rectangular unfolded shape as a whole.

In this embodiment, a constricted shape is provided approximately at the center in the longitudinal direction. Further, as shown in FIG. 4, a water-absorbing absorbent material 3 is sandwiched between the inner surface material 1 and the outer surface material 2 described above, and preferably cotton-like pulp or the like is placed on both sides of the absorbent material 3. Water-permeable papers 4 and 5 made of are placed. Second
As shown in the figures and FIG. 3, the inner surface material 1 and the outer surface material 2 have substantially the same stone shape and are overlapped with each other, and the absorbent material 3 is formed by the inner surface material 1 and the outer surface material 2. It is positioned so as to leave a margin around the periphery of the approximately rectangular outline.

The inner surface material 1 is composed of, for example, a nonwoven fabric, and such a nonwoven fabric can be obtained by mixing polypropylene fibers, polyethylene fibers, and valves, or mixing polypropylene fibers and polyester fibers, and may also contain calcium carbonate. . The absorbent material 3 is mainly composed of flocculent pulp, and may also contain a water-absorbing polymer to increase its water-absorbing ability. The outer material 2 is usually made of a waterproof sheet of low-density polyethylene, and in some cases, a large number of pores may be formed in order to provide moisture permeability. However, in this embodiment, the outer surface 1-2 has a structure in which a waterproof resin sheet 6 such as polyethylene and a nonwoven fabric 7 are laminated together as described above. As the material used for the nonwoven fabric 7, the same material as the inner surface material 1 described above can be selected. The waterproof resin sheet 6 is oriented inward, and the nonwoven fabric 7 is oriented outward, and in order to bond these together, a lamination process that includes a process of heat-pressing, for example, is employed. That is, by such heat and pressure bonding, the thermoplastic resins contained in the waterproof resin sheet 6 and the nonwoven fabric 7 are welded to each other. Note that it is preferable that the heat compression bonding is not applied to the entire surface, but only to specific areas distributed in a striped, netted, or dotted manner.

The presence of the nonwoven fabric 7 facing outward in the outer surface material 2 not only provides an excellent feel to the outside, but also serves to reinforce the waterproof resin sheet 6. In particular, a sheet with many pores formed to provide moisture permeability is used as a waterproof resin sheet 6.
When used as a waterproof resin sheet 6
Although it has the disadvantage of being mechanically weak, attaching the nonwoven fabric 7 has the effect of compensating for such a decrease in strength.

When this disposable diaper is put into the wearing condition as shown in FIG. The side parts 9 and 10 of the part 8 and the side parts 12 and 13 of the other end 11 in the longitudinal direction located on the back side of the user are overlapped and connected, respectively. In such a worn condition, each of the side portions 9, 10 and 12.13 of the one end 8 and the other end 11 has a dimension extending from near the base of the wearer's thighs to a position around the waist of the wearer. are doing. Then, in order to achieve the above-mentioned connected state, an adhesive means is used, and by this adhesive means, the connected state is achieved both in the vicinity of the base of the thigh and at the position around the waist.

The adhesive means includes a first adhesive means for connecting the vicinity of the base of the thigh, and a second adhesive means for connecting the area around the waist. A first adhesive means is provided by an adhesive surface 14 provided with an adhesive.

Adhesive surface 14 attaches pressure sensitive adhesive tape to each side 12 of end 11.
, 1B, or the adhesive may be applied directly onto the inner surface material 1. It is preferable that the adhesive surface 14 is covered with a removable cover 15 from the time the disposable diaper is shipped until just before use.

In addition, a reinforcing sheet 16 is provided in a predetermined area of each side 9, 10 of the end 8, which is the area of the other side to which the adhesive surface 14 is bonded.
It is preferable to provide

On the other hand, the second adhesive means consists in this embodiment of a tape fastener 17 consisting of pressure-sensitive liquid pipe tape. Tape fasteners 17 are provided to extend from each side 12, 13 of end portion 11, and are each pasted onto the outer surface material 2 of the corresponding side 9-10 in the state shown in FIG.

In addition, this disposable diaper is treated to be elastically expandable and contractible in the portions of one end 8 and the other end 11 that correspond to the wearer's waist. That is, along each of the ends 8 and 11, a longitudinal elastic body 18.
19 are arranged, thereby forming a stretchable waist gear 20 as shown in FIG.

Furthermore, the part that corresponds to the base of the wearer's thighs is also treated to be elastically expandable.

That is, along each side of the absorbent material 3, the elongated elastic body 2
1.22 is arranged, thereby forming a telescopic thigh gears 23 as shown in FIG.

Next, a typical method of using the disposable diaper described above will be explained.

First, the cover 15 is removed to expose the adhesive surface 14, and before being worn on the wearer, it is shaped into a pants shape as shown in FIG. 1, and the adhesive surface 14 is adhered to the reinforcing sheet 16. . Next, this disposable diaper is put on the wearer in the same way as putting on pants. When the installation has been completed, tape fasteners 17 are pasted onto the outer surface material 2 on each side 9° 10 of the end portion 8.

This completes the first pipe operation.

Next, in order to take off the diaper in the pipe state for practicing urination or the like, or when urinating inside the diaper, the diaper can be pulled down from the wearer like taking off pants. In the second case, if the waist gears 20 are formed as in the illustrated embodiment, the second layer can be easily removed. In addition, when removing the diaper in this manner, if the tape fastener 17 has a structure that can be repeatedly attached and peeled off like a well-known disposable diaper, at least one of the tape fasteners 17 may be removed.

When the disposable diaper is to be worn again, the procedure can be performed in the same manner as when the patient is put on regular pants.

Although this invention has been described above in connection with the illustrated embodiments, various other modifications are possible within the scope of this invention.

For example, in the illustrated embodiment, a first adhesive means consisting of an adhesive surface 14 and a second adhesive means consisting of a tape fastener 17 are used as adhesive means for establishing a connected state both near the base of the thigh and at a position around the waist. Although the first and second adhesive means may be formed of a series of adhesive surfaces, for example.

Moreover, instead of the adhesive surface 14 serving as the first adhesive means, a second
A tape fastener similar to tape fastener 7 constituting the adhesive means may be used.

Further, although it is not an essential requirement to apply elastically expandable treatment to the part that corresponds to the wearer's waist, when the waist gathers 20 are provided as in the illustrated embodiment, the waist gathers 20 shown in the figure It does not need to be formed so as to extend almost all the way around the waist, as in the above, but it is sufficient to form only a partially stretchable portion at at least one place around the waist.

Further, it is not an essential requirement that the portion corresponding to the base of the wearer's thigh be treated to be elastically stretchable.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a disposable diaper according to an embodiment of the present invention in a wearing state. Figure 2 shows
2 is a developed view of the disposable diaper shown in FIG. 1, with the inner surface material 1 facing upward; FIG. FIG. 3 is also a developed view, but shows a state in which the outer surface material 2 is directed upward. FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG. 2. In the figure, 1 is an inner material, 2 is an outer material, 3 is an absorbent material, and 8
is one end, 9.10 is the side of the one end 8, 11 is the other end, 12.13 is the side of the other end 11, 14 is the adhesive surface (first adhesive means), 17 is the tape A fastener (second adhesive means), 18, 19, 21, and 22 are elastic bodies, 20 is a waist gear, and 23 is a thigh gear. Patent applicant: Aprica Kasai Co., Ltd.!・7゛・ Representative Patent Attorney Kube Fukami, □...1゜ (and 2 others>'=i':, -1, -' Figure 1

Claims (6)

[Claims] (1) It has a laminated structure including a water-permeable inner material that touches the wearer's skin, a waterproof outer material facing outward, and a water-absorbent absorbent material sandwiched between the inner material and the outer material. In addition, the device has a generally rectangular unfolded shape as a whole, with the center portion in the longitudinal direction located approximately in the wearer's crotch, and each side of one end portion in the longitudinal direction located on the ventral side of the wearer. and each side of the other end in the longitudinal direction located on the wearer's back side, which is put into a worn state by overlapping each other to form a connected state, wherein the one end and the other end Each side of each of the sections has a dimension extending from near the base of the wearer's thighs to a position around the waist of the wearer; A disposable diaper, characterized by comprising adhesive means for establishing a connected state. (2) The disposable diaper according to claim 1, wherein the adhesive means includes an adhesive. (3) The adhesive means includes a first adhesive means for bringing the vicinity of the base of the thigh into the connected state, and a second adhesive means for bringing the position around the waist into the connected state. , a disposable diaper according to claim 1 or 2. (4) A treatment according to any one of claims 1 to 3, wherein the one end portion and the other end portion, which correspond to the wearer's waist, are treated to be elastically stretchable. Disposable diapers described in Crab. (5) The part corresponding to the base of the wearer's thigh is treated to be elastically expandable.
The disposable diaper according to any one of Items 1 to 4. (6) The disposable diaper according to any one of claims 1 to 5, wherein the outer material has a laminated structure of a waterproof resin sheet facing inward and a nonwoven fabric facing outward.