JP2002325797A - Throw-away diaper of open type - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a throw-away diaper which facilitates the wearing operation to a standing-up wearing person and does not take labor in the wearing operation. SOLUTION: This throw-away diaper 1 of an open type is interposed with a liquid absorptive core 6 between a front surface sheet 4 and a rear surface sheet 5 and has first and second wearing belts 10 and 11 which are unevenly distributed to the side of the end edge 8 of a rear girth area 28 and extend outward in the transverse direction from both side edges 9 of the rear girth area 28. First accepting members 15 and 16 extending to the transverse direction are attached to non-skin abutting surfaces 3 of the first and second wearing belts 10 and 11; a first fastening member 17 attachable and detachable to and from the first accepting member 16 of the second wearing 11 is attached to a skin abutting surface 2 at the outer end 10 in the transverse direction of the first wearing belt 10 and second fastening members 19 attachable and detachable to and from the first accepting members 15 and 16 of the first and second wearing belts 10 and 11 are attached to the skin abutting surfaces 2 near the end edges 7 of the front girth area 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an open-type disposable diaper for absorbing and retaining excrement.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 11-70143 discloses that a liquid-absorbent core is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, and is laterally outward from both side edges of a rear waist region. A pair of tape fasteners extending to both sides, a pair of wearing belts extending laterally outward from both side edges of the rear waist region, and a target tape attached to the outer surface of the back sheet in the front waist region. Discloses an open-type disposable diaper disposed so as not to overlap the outer surface side of the tape fastener.

[0003] The procedure of wearing this diaper is as follows. The wearer places the diaper on his / her back and wraps the wearing belt around the torso, connects the belt on the abdomen and secures it to the torso. Next, the front waist region of the diaper is moved to the abdomen through the crotch portion, and the lateral outer end of the tape fastener is fastened to the target tape to connect the front waist region and the rear waist region. . Since this diaper can be worn while hanging the diaper on the torso of the wearer using a belt, the operation of wearing the diaper in an upright state is easy, and the belt is attached to the torso of the wearer. And the operation of fixing the tape fastener to the target tape can be performed on the abdomen of the wearer.

[0004]

In the diaper disclosed in the same publication, when a standing wearer wears the diaper, the tape fastener is targeted by the other hand while holding the front waist area with one hand. It must be fastened to the tape, and the operation of fastening the tape fastener to the target tape cannot be performed with both hands. Also, in this diaper, if the front waist area is released before fastening the tape fastener to the target tape, the front waist area hangs down toward the wearer's leg standing upright and has the front waist area again. The diaper must be repaired, and it may take time to wear the diaper.

[0005] It is an object of the present invention to provide a disposable diaper that can be easily worn by a standing wearer and does not require much time for the wearing operation.

[0006]

The premise of the present invention for solving the above-mentioned problems is that a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-absorbing core interposed between the sheets. A first and a second waist region in the vertical direction, a crotch region located between the waist regions, and both end edges extending in the lateral direction through the first and the second waist regions; First and second wearing belts having both side edges extending in the vertical direction and being laterally outwardly distributed from both side edges of the first waist region, being unevenly distributed on the side of the edge of the first waist region. It is an open-type disposable diaper.

A feature of the present invention on this premise is that the first receiving member extending in the lateral direction is attached to the skin non-contact surface of the first and second wearing belts, and the first receiving member of the second wearing belt is A first fastening member detachably attached to the receiving member is attached to a skin contact surface at a lateral outer end portion of the first wearing belt, and is attached to and detached from the first receiving member of the first and second wearing belts. A possible second fastening member is attached to the skin contact surface near an edge of the second waist region, and a first receiving member of the second wearing belt is a first fastening member of the first wearing belt. After fastening the first fastening member and connecting the wearing belts to each other, the second fastening member in the second waist region is fastened to the first receiving member of the first and second wearing belts. To connect the second waist area to the wearing belt.

In one embodiment of the present invention, the first and second wearing belts have a vertical dimension from an edge of the first waist region to a vertical central portion of the first waist region. The first receiving member has a vertical dimension substantially the same as a vertical dimension of the first and second wearing belts.

As another example of the embodiment of the present invention,
A first and a second flap in which the diaper is unevenly distributed on a side of the crotch region and extends laterally outward from both side edges of the first waist region; and the non-skin contact of the second waist region. A second receiving member attached to a surface of the first and second flaps, the third fixing member being detachable from the second receiving member; The third fastening member is fixed to the second receiving member, and the first and second flaps are connected to the second waist region.

As another example of the embodiment of the present invention,
The first and second receiving members are formed from one of a hook member and a loop member that are detachable from each other,
The first to third fastening members are formed from the other of the hook member and the loop member.

As another example of the embodiment of the present invention,
The first and second receiving members are formed of a flexible plastic film, and the first to third fixing members are formed of an adhesive applied to the skin contact surface and the non-skin contact surface. Is formed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the open-type disposable diaper according to the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 and 2 are a partially cutaway perspective view of the diaper 1 shown from the side of the skin contact surface 2 and a cross-sectional view taken along the line AA of FIG. 1, and FIG. It is a line end view. In FIG.
The horizontal direction is indicated by an arrow X, and the vertical direction is indicated by an arrow Y. In addition,
The skin contact surface 2 refers to a surface facing the wearer's skin wearing the diaper 1, and the non-skin contact surface 3 refers to a surface not facing the wearer's skin.

The diaper 1 is composed of a liquid-permeable top sheet 4, a liquid-impermeable back sheet 5, and a liquid-absorbing core 6 interposed between the sheets 4,5. The core 6 is joined to at least one of the top sheet 4 and the back sheet 5.

The diaper 1 has a front waist region 26 and a rear waist region 28 in the longitudinal direction, and a crotch region 27 located between the front and back waist regions 26, 28. , A rear edge 8 extending laterally in the rear waist region 28, and both side edges 9 extending in the vertical direction. The side edges 9 form an arc inward in the lateral direction in the crotch region 27.

The diaper 1 includes first and second wearing belts 10 and 11 eccentrically located on the side of the rear end edge 8 and extending laterally outward from both side edges 9 of the rear waist region 28, and a side of the crotch region 27. And first and second flaps 12, 13 extending laterally outward from both side edges 9 of the rear waist region 28 and a substantially impermeable liquid extending longitudinally through the skin contact surface 2 of the diaper 1. Sex leakproof cuff 1
And 4.

The first and second wearing belts 10, 11 are:
Wearing the belt 1 around the wearer's torso
0 and 11 have a horizontal dimension that allows them to be connected to each other, and a vertical dimension that extends from the rear edge 8 to the vertical center of the rear waist region 28.

On the non-skin contact surfaces 3 of the first and second wearing belts 10, 11, a loop member having a longitudinal dimension L1 and a lateral dimension L2 substantially the same as the longitudinal and lateral dimensions of the wearing belts 10, 11 is provided. 15 and 16 (first receiving members) are attached. Lateral outer end 10 of first wearing belt 10
A hook member 17 (first fastening member) that is detachably fastened to the loop member 16 is attached to the skin contact surface 2 in a.

The non-skin contact surface 3 of the front waist region 26 is provided with a loop member 18 (second receiving member) extending in the vertical direction near both side edges 9 of the front waist region 26 at a given distance in the horizontal direction. Member) is attached. A hook member 19 (second fastening member) that is detachably fastened to the loop members 15 and 16 is attached to the skin contact surface 2 near the front edge 7 of the front waist region 26.

The first and second flaps 12 and 13 have lateral dimensions shorter than those of the first and second wearing belts 10 and 11. First and second flaps 12, 13
The hook member 2 detachably fastened to the loop member 18 is attached to the skin contact surface 2 at the lateral outer ends 12a, 13a of the
0 (third fastening member) is attached.

The first and second wearing belts 10, 11 and the first and second flaps 12, 13 are formed of a substantially liquid-impermeable, non-stretchable sheet member.
The first wearing belt 10 and the first flap 12 are made of one piece and have their lateral inner ends 10b,
12b is fixed near the side edge 9 of the rear waist region 28. The second wearing belt 11 and the second flap 13 are made of one piece and have their lateral inner ends 11.
b, 13b are fixed near the side edge 9 of the rear waist region 28.

In the vicinity of the rear end edge 8, a plurality of waist elastic members 21 extending in the lateral direction are attached in an extended state. In the crotch region 27, in the vicinity of both side edges 9, a plurality of leg elastic members 22 extending in the vertical direction are attached in an extended state.

The leak-preventing cuff 14 has a free edge portion 14a extending in the vertical direction with an upright propensity above the topsheet 4, a fixed edge portion 14b fixed near both side edges 9, and a laterally inward direction. The diaper 1 has fixed both ends 14c fixed in the vicinity of the front and rear end edges 7, 8 of the diaper 1 in a laid state. An elastic member 23 extending in the vertical direction is attached to the free edge 14a in an extended state. The elastic member 23 covers a part of the free edge 14a.

In FIG. 1, the diaper 1 is bent in the vertical direction with the top sheet 4 inside, and the free edge 14a of the cuff 14 is contracted in the vertical direction by the contraction of the elastic member 23, so that the free edge 1
4 a stands up above the topsheet 4. In the diaper 1, the free edge portion 14 a of the upright cuff 14 forms a barrier against excrement, and can prevent the excrement from leaking from both side edges 9.

In the vicinity of the front and rear edges 7, 8 of the diaper 1, the end 4a of the top sheet 4 and the end 5a of the back sheet 5 extend outwardly in the vertical direction from both ends 6a of the core 6, and the ends 4a, 4b.
The overlapping portions of a and 5a are fixed. The fixed both ends 14c of the cuff 14 are fixed to the ends 4a and 5a of the front and back sheets 4 and 5, respectively. Elastic member for waist 21
Are the end 4a of the top sheet 4 and the end 5a of the back sheet 5
And is fixed to the ends 4a and 5a.

In the vicinity of the side edges 9 of the diaper 1, the side portions 4b of the topsheet 4 slightly extend laterally outward from the side edges 6b of the core 6, and further laterally outward from the side portions 4b of the topsheet 4. Fixed edge 1 between side 5b of back sheet 5 and cuff 14
4b are extended. The side part 4b is interposed between the side part 5b and the fixed edge part 14b, and is fixed to them. The side portion 5b and the fixed edge portion 14b have their overlapping portions fixed. The leg-surrounding elastic member 22 is interposed between the side portion 5b of the back sheet 5 and the fixed edge portion 14b of the cuff 14, and is fixed thereto.

FIGS. 4A to 4D are explanatory views of a wearing procedure when the wearer (not shown) wears the diaper 1 in a standing state. FIG. 5 is a cross-sectional view taken along the line CC of FIG. 4D, and shows a state where the fastening position of the hook member 17 with respect to the loop member 16 has been moved downward in the drawing by phantom lines.

In order for the wearer to wear the diaper 1, FIG.
The diaper 1 in the state of (a) is placed on the back side of the user, and the lateral outer ends 10 of the first and second wearing belts 10 and 11 are arranged.
a, 11a are moved to the abdominal side and the belts 10, 11 are moved.
Around the torso. The wearer fastens the hook member 17 to the loop member 16 and attaches the first and second wearing belts 10,
11 and the wearing belts 10, 11 are fixed to the trunk. By adjusting the fastening position of the hook member 17 with respect to the loop member 16, the diaper 1 can increase or decrease the tightening of the wearer's torso by the wearing belts 10 and 11.

Next, the wearer wears the front waist area 2 of the diaper 1.
6 is moved to the abdomen through his crotch, the hook member 19 is fixed to the loop members 15 and 16, and the front waist region 26
Is connected to the first and second wearing belts 10 and 11 (FIG. 4C). The wearer attaches the hook member 20 to the loop member 1.
8 and connect the laterally outer ends 12a, 13a of the first and second flaps 12, 13 to the front waist region 26 (FIG. 4D). The diaper 1 shown in FIGS. 4C and 4D has a waist opening 24 and a pair of leg openings 25.
And are defined.

The diaper 1 can be worn while being hung on the torso of the wearer by using the wearing belts 10 and 11, so that the diaper 1 can be easily worn while standing upright. Also, in the diaper 1, the first and second wearing belts 10, 11 are fixed to the torso of the wearer, and then the front waist region 26 only needs to be connected to the wearing belts 10, 11, so that the tape fastener can be used. Wearing operation is easier than the prior art diaper, in which the front and rear waist regions cannot be connected without fastening to the target tape. In the diaper 1, the front waistline area 26 includes the belts 10,
11 and the first and second flaps 1
2 and 13 can be connected to the front waist region 26 so that their flaps 12 and 13 with respect to the front waist region 26
Can be performed with both hands.

In the diaper 1 in the state shown in FIG. 4D, since the first and second flaps 12, 13 are connected to the front waist region 26, the wearing belts 10, 11 are worn during the wearing.
Even if the connection of the front waist region 26 to the
The wearing state of the diaper 1 can be maintained. In the diaper 1, the size of the leg opening 25 can be changed by adjusting the fastening position of the hook member 20 attached to the first and second flaps 12 and 13 to the loop member 18. Therefore, in the diaper 1, the side edges 9 extending to the crotch region 27 can be brought into close contact with the circumference of the wearer's leg, and leakage of excrement from around the leg can be prevented.

In the diaper 1, as shown by the phantom line in FIG. 5, the fastening position of the hook member 19 with respect to the loop members 15 and 16 is shifted downward in the figure, so that from the center of the waist opening 24 to the center of the crotch region 27. The rise size of the diaper 1 is L
From 3 can be changed to dimension L4. In diaper 1,
Since the rise size of the diaper 1 can be changed depending on the fastening position of the hook member 19 with respect to the loop members 15 and 16, the diaper 1 can be worn while the crotch region 27 is separated from the wearer's crotch region, or the crotch region 27. Can be prevented from wearing the diaper 1 in a state where the diaper 1 is in strong contact with the wearer's crotch.

In the diaper 1, the longitudinal dimension L1 of the loop members 15, 16 is preferably in the range of 5 to 15 cm.
If the vertical dimension L1 is less than 5 cm, the rise size of the diaper 1 can be slightly changed. Vertical dimension L1 is 15cm
Is exceeded, the longitudinal dimensions of the wearing belts 10 and 11 become large, and the wearing belts 10 and 11 are interposed between the front waistline region 26 and the wearer's skin in a state where the wear belts 10 and 11 cover the wearer's abdomen widely. Therefore, the wearing belts 10 and 11 serve as partitions for the front waistline region 26 and the excrement, and the front waistline region 26 cannot absorb the excrement.

In the diaper 1, the first and second wearing belts 10, 11 and the first and second flaps 12, 13 are formed of a substantially liquid-impermeable, elastically stretchable sheet member. You may. In diaper 1, the first
In addition, the second wearing belts 10 and 11 and the first and second flaps 12 and 13 may be connected to both side edges 9 of the rear waist region 28 in series. In this case, at least the back sheet 5 of the top sheet 4 and the back sheet 5 constituting the diaper 1 extends laterally outward from the side edges 9 of the rear waist region 28 to wear the belts 10, 11 and the flaps 12 thereof. ,
13 can be formed.

In the diaper 1, the first and second wearing belts 10, 11 and the first and second flaps 12, 13 are attached to the front waist region 26, and the loop member 1 is provided.
8 is attached to the skin non-contact surface 3 near the both side edges 9 of the rear waist region 28, and the hook member 19 is attached to the skin contact surface 2 near the rear end edge 8 of the rear waist region 28. You may.

In the diaper 1, since the diaper 1 can be worn only by connecting the front waist region 26 to the first and second wearing belts 10, 11, the first and second flaps 12, 13 and the loop The attachment to the member 18 can be omitted.

In the diaper 1, a flexible plastic film can be used instead of the loop member, and an adhesive covered and protected by a release paper can be used instead of the hook member. In this case, the plastic film is fixed to the non-skin contact surface 3 of the first and second belts 10 and 11 and the non-skin contact surface 3 of the front waistline region 26, and the adhesive is applied to the first belt.
The skin contact surface 2 at the lateral outer end 10a of the wearing belt 10, the skin contact surface 2 at the lateral outer ends 12a, 13a of the first and second flaps 12, 13 and the skin contact near the front end edge 7. Surface 2 is applied.

As the top sheet 4, a hydrophilic fiber nonwoven fabric or a plastic film having many fine openings can be used. Back sheet 5, first and second wearing belts 10, 11, first and second flaps 1
For 2,13, any one of a hydrophobic fiber nonwoven fabric, a liquid-impermeable plastic film, a two-layer nonwoven fabric obtained by laminating a hydrophobic fiber nonwoven fabric, and a composite sheet in which a plastic film is fixed to a hydrophobic fiber nonwoven fabric is used. be able to.
A hydrophobic fiber nonwoven fabric can be used for the leak prevention cuff 14.

The back sheet 5, the first and second wearing belts 10 and 11, the first and second flaps 12 and 13, and the leak-proof cuff 14 are made of a fiber nonwoven fabric having a high water resistance by a melt blown method. It is also possible to use a composite nonwoven fabric sandwiched between fibrous nonwoven fabrics by the spunbond method, which has high flexibility.

As the nonwoven fabric, those manufactured by spunlace, needle punch, melt blown, thermal bond, spunbond, chemical bond, and air through methods can be used. The constituent fibers of the nonwoven fabric include polyolefin-based, polyester-based, and polyamide-based fibers, polyethylene / polypropylene,
Alternatively, a core / sheath composite fiber or a parallel composite fiber composed of polyethylene / polyester can be used.

The core 6 is a mixture of fluff pulp and superabsorbent polymer particles or a mixture of fluff pulp, superabsorbent polymer particles and thermoplastic synthetic resin fibers, and is compressed to a required thickness. The core 6 is preferably entirely coated with tissue paper in order to prevent the polymer particles from falling off or out of shape. As the polymer particles, starch-based, cellulose-based, and synthetic polymer-based particles can be used.

Front and back sheets 4, 5, first and second wearing belts 10, 11, first and second flaps 12, 1
3. A hot-melt adhesive or a hot-melt adhesive is used for fixing the leak-proof cuff 14, the loop members 15, 16, 18, and the hook members 17, 19, 20, joining the core 6, and attaching the elastic members 21, 22, 23. Further, a welding means by heat such as heat sealing or ultrasonic bonding can be used.

[0043]

According to the disposable diaper according to the present invention, the diaper can be worn using the wearing belt while being hung on the torso of the wearer, so that the diaper can be easily worn while standing upright. In addition, after the first and second wearing belts are fixed to the torso, it is only necessary to connect the front waist area to the belts, so that the wearing operation does not take much time as compared with the conventional diaper.

In this diaper, by changing the fastening position of the second fastening member with respect to the first receiving member, the rise size of the diaper from the center of the waist opening to the center of the crotch region can be changed. Can prevent the diaper from being worn away from the wearer's crotch, or the diaper from being worn while the crotch region is in strong contact with the wearer's crotch.

In a diaper having first and second flaps eccentrically located on the side of the crotch region and extending laterally outward from both side edges of the rear waist region, the connection between the front waist region and the wearing belt during the wearing thereof. Even if is released, since the first and second flaps are connected to the front waist area, the diaper can be maintained in a worn state. Also, in this diaper, the first
By adjusting the fastening position of the hook member 20 attached to the second flaps 12 and 13 to the loop member 18, the side edges 9 extending to the crotch region 27 can be brought into close contact with the circumference of the wearer's leg. Leakage of excrement from around can be prevented.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view of a diaper shown from the side of a topsheet.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is an end view taken along line BB of FIG. 2;

FIG. 4 is an explanatory view of a wearing procedure when wearing a diaper.

FIG. 5 is a sectional view taken along line CC of FIG. 4 (d).

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 disposable diaper 2 skin contact surface 3 non-skin contact surface 4 liquid-permeable top sheet 5 liquid-impermeable back sheet 6 liquid-absorbent core 7 front edge 8 rear edge 9 both side edges 10 first wearing belt 10a lateral direction Outer end 11 Second wearing belt 12 First flap 12a Lateral outer end 13 Second flap 13a Lateral outer end 15 Loop member (first receiving member) 16 Loop member (first receiving member) 17 Hook Member (first fastening member) 18 Loop member (second receiving member) 19 Hook member (second fastening member) 20 Hook member (third fastening member) 26 Front waist area 27 Inseam area 28 Rear waist area Area L1 Vertical dimension

Claims (5)

[Claims] 1. A liquid-permeable topsheet, a liquid-impervious backsheet, and a liquid-absorbent core interposed between the sheets, the first and second waist regions in the longitudinal direction, and A crotch region located between the waist regions; a first waist region having both end edges extending in the lateral direction through the first and second waist regions; and two side edges extending in the vertical direction. An open-type disposable diaper having first and second wearing belts laterally outwardly extending from both side edges of the first waist region and unevenly distributed on an edge side of the first waist region, wherein the first laterally extending receiving member is provided. A member is attached to a non-skin contact surface of the first and second wearing belts, and a first fastening member detachable from a first receiving member of the second wearing belt,
A second fastening member attached to a skin contact surface at a laterally outer end of the first wearing belt and detachable from a first receiving member of the first and second wearing belts; Attached to the skin contact surface in the vicinity of the edge of the area, the first fastening member of the first wearing belt is fastened to the first receiving member of the second wearing belt, and the wearing belts are attached to each other. After the connection, the second fastening members of the second waist region are fastened to the first receiving members of the first and second wearing belts, and the second waist region is connected to the wearing belts. The diaper as described above. 2. The first and second wearing belts have a vertical dimension extending from an edge of the first waist region to a vertical central portion of the first waist region, and the first receiving member. But the first
The diaper according to claim 1, wherein the diaper has substantially the same vertical dimension as the vertical dimension of the second wearing belt. 3. The first and second flaps are disposed on the side of the crotch region and extend laterally outward from both side edges of the first waist region. A second receiving member attached to the non-skin contact surface, and a third fixing member detachable from the second receiving member;
And the second flap is attached to the skin contact surface at the laterally outer end of the second flap, and the third fastening member is fastened to the second receiving member, so that the first and second flaps are located in the second waist area. The diaper according to claim 1 or 2, wherein two flaps are connected. 4. The first and second receiving members are formed from one of a hook member and a loop member which are detachable from each other, and the first to third fastening members are formed by a hook member and a loop member. 4. The diaper according to claim 3, wherein the diaper is formed from one of the other. 5. The first and second receiving members are formed of a flexible plastic film, and the first to third fixing members are applied to the skin contact surface and the skin non-contact surface. The diaper according to claim 3, wherein the diaper is formed from a pressure-sensitive adhesive.