WO2018079191A1

WO2018079191A1 - Tape-type diaper

Info

Publication number: WO2018079191A1
Application number: PCT/JP2017/035523
Authority: WO
Inventors: 坂口　智; 山中　康弘; 真紀辻井
Original assignee: ユニ・チャーム株式会社
Priority date: 2016-10-31
Filing date: 2017-09-29
Publication date: 2018-05-03
Also published as: JP6703927B2; JP2018068721A

Abstract

A tape-type diaper (1) is for a low-weight infant and has a maximum longitudinal-direction length of 330 mm or less in a spread and extended state. The tape-type diaper includes: side flaps (20) equipped with a pair of front extending portions (20A) and a pair of rear extending portions (20B); fastening tapes (40) that are fixed to the pair of front extending portions (20A); and a target region (45). When putting the tape-type diaper (1) on a wearer who is sleeping in a posture with their stomach facing downward and both legs bent, one side of the tape-type diaper (1) in the longitudinal direction is arranged on the stomach side of the wearer, the front extending portions (20A) are wrapped around the waist of the wearer from the stomach side to the back side, and the pair of fastening tapes (40) can be fastened to the target region (45) on the back side of the wearer. A maximum value (R1) of the curvature of parts where the front extending portions (20A) begin to extend toward the outside in the width direction while drawing a curved line is larger than a maximum value (R2) of the curvature of parts where the rear extending portions (20B) begin to extend toward the outside in the width direction while drawing a curved line.

Description

Tape type diaper

The present invention relates to a tape-type diaper.

In general, a tape-type diaper has a first waistline portion, a crotch portion, and a second waistline portion arranged in the longitudinal direction, and a fastening tape provided so as to extend from the first waistline portion to both lateral sides. 2 It is worn by the wearer by engaging with the waistline. In Patent Document 1, the absorber has a constricted portion on the inner side in the width direction, and the constricted portion is formed close to the second waistline portion side (the opposite side to the fastening tape side) in the longitudinal direction. A tape-type diaper is disclosed.

Patent No. 5740520

Some of these tape-type diapers are intended for infants. For example, if the wearer is a baby (low weight child) who was born at a low weight of 3000 grams or less, the low weight child should be in the womb, that is, bend both legs with the abdomen facing down The prone posture (positioning posture) is often attracted to the position where the knee is attached to the abdomen. When such a low-weight infant is to wear a tape-type diaper, the diaper is worn in the above-mentioned positioning posture from the viewpoint of minimal handling that it is desirable to avoid touching the body as much as possible.

¡When a low-weight child who is in a positioning posture wears a tape-type diaper, it is difficult to lock the fastening tape on the abdomen side hidden between both legs. Therefore, there is a method of wearing a diaper by inverting the front and back of the diaper and locking the fastening tape on the back side of the low weight child. In this case, it is necessary to place the diaper on the ventral side of a low-weight child with the front and back reversed, to turn the dorsal side through the fastening tape from between the abdomen and both legs, and to lock the fastening tape on the dorsal side. However, in the conventional tape-type diaper, when the fastening tape is passed through between the abdomen and both legs, the fastening tape is easily caught on the wearer's leg, and the wearer's body may be burdened. In particular, when wearing a diaper with a low weight in a positioning position in an incubator, it is necessary to pull out the diaper between both legs with one hand and pull it to the ventral side with the other hand, which limits operability. For this reason, it is difficult to make the wearer wear without putting a burden on the wearer's body.

Therefore, an object of the present invention is to provide a tape-type diaper that is less burdensome to the body when worn by a low-weight child who is taking a posture in which both legs are bent with the abdomen facing down.

The main invention for achieving the above object is:
A tape-type diaper for a low-weight child having a longitudinal direction, a width direction, and a thickness direction, and having a maximum length in the longitudinal direction of 330 mm or less in a developed and extended state, on one side of the longitudinal direction A pair of front extending portions extending to both outer sides in the width direction, and a side flap including a pair of rear extending portions extending to both outer sides in the width direction on the other side in the longitudinal direction; A fastening tape fixed to each of the pair of front extension parts, and a target region provided on the other side of the longitudinal direction to engage the fastening tape, and the legs are bent with the belly facing downward When the wearer who is sleeping in the posture is made to wear, one side in the longitudinal direction is assigned to the wearer's abdomen, and the front extension portion is connected to the back from the abdomen along the waist of the wearer. Turn to the side, the pair of It is possible to engage the fastening tape with the target region on the back side of the wearer, and the front side extending portion is curved from the other side toward the one side and toward the outer side in the width direction. The maximum value of the curvature of the part that begins to extend while drawing the curvature is the curvature of the part that the rear side extension part begins to extend while drawing a curve from the one side toward the other side and toward the outside in the width direction. It is a tape type diaper characterized by being larger than the maximum value of.
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

According to the present invention, it is possible to provide a tape-type diaper that is less likely to put a burden on the body of a low-weight child when worn by a low-weight child who has a posture in which both legs are bent with the abdomen facing down. .

It is the schematic plan view which looked at the diaper 1 of the state which expand | deployed and expand | extended from the skin side of the thickness direction. FIG. 2A is a schematic cross-sectional view of the diaper 1 in the first waistline portion 1A. FIG. 2B is a schematic cross-sectional view of the diaper 1 in the crotch 1C. It is a schematic plan view of the diaper 1, and is a figure explaining the three-dimensional gather part 50. FIG. FIG. 4A is a diagram illustrating a state where a diaper 1 is worn by a low-weight child taking a positioning posture. FIG. 4B is a diagram illustrating a state in which a low-weight child taking a positioning posture is worn with the front and back of the diaper 1 reversed. 4 is a plan view for explaining the structure of the side flap 20. FIG. It is the top view expanded and expressed about front side extension part 20A. It is a figure explaining the case where the diaper 1 is made to wear back and forth so that a waistline may become loose. It is a figure explaining the cut line 60. FIG.

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
A tape-type diaper for a low-weight child having a longitudinal direction, a width direction, and a thickness direction, and having a maximum length in the longitudinal direction of 330 mm or less in a developed and extended state, on one side of the longitudinal direction A pair of front extending portions extending to both outer sides in the width direction, and a side flap including a pair of rear extending portions extending to both outer sides in the width direction on the other side in the longitudinal direction; A fastening tape fixed to each of the pair of front extension parts, and a target region provided on the other side of the longitudinal direction to engage the fastening tape, and the legs are bent with the belly facing downward When the wearer who is sleeping in the posture is made to wear, one side in the longitudinal direction is assigned to the wearer's abdomen, and the front extension portion is connected to the back from the abdomen along the waist of the wearer. Turn to the side, the pair of It is possible to engage the fastening tape with the target region on the back side of the wearer, and the front side extending portion is curved from the other side toward the one side and toward the outer side in the width direction. The maximum value of the curvature of the part that begins to extend while drawing the curvature is the curvature of the part that the rear side extension part begins to extend while drawing a curve from the one side toward the other side and toward the outside in the width direction. A tape-type diaper characterized by being larger than the maximum value of.

According to such a tape-type diaper, when a low-weight child taking a posture in which both legs are bent with the abdomen on the lower side, when the diaper is worn with the front and back reversed, The part becomes difficult to come into contact with both legs of the low weight infant. Thereby, while making it easy to perform the operation | movement which pulls out a front side extension part to the abdominal side, the risk of damaging the skin of a low weight child can be reduced and the fitting property at the time of diaper wear can be improved. Therefore, when putting on a diaper, it can make it hard to put a burden on the body of a low weight child.

In such a tape-type diaper, it is preferable that the length of the front extension portion in the longitudinal direction is longer than the length of the rear extension portion in the longitudinal direction.

According to such a tape-type diaper, the wearer's abdomen is easily covered widely by the front extension part, and excrement such as urine leaks on the abdomen side of the wearer sleeping in a lean state. It becomes easy to suppress.

In such a tape-type diaper, the length of the front extension part in the longitudinal direction is:
It is desirable that it is not less than 1/4 and not more than 1/3 of the length in the longitudinal direction of the tape-type diaper in the expanded and extended state.

According to such a tape-type diaper, compared to a conventional tape-type diaper, the area of the front extension part is likely to be large, and a wide area on the wearer's stomach side is easily covered. On the other hand, it is possible to prevent the front waistline portion from becoming excessively large and the area ratio and balance with other regions from being lost. By these, it becomes easy to make a diaper fit the body of a low weight child.

In such a tape-type diaper, the sum of the length in the longitudinal direction of the front extension part and the length in the longitudinal direction of the rear extension part is the longitudinal length of the tape-type diaper in the expanded and extended state. It is desirable that it is 1/2 or more of the length in the direction.

¡According to such a tape-type diaper, the ratio of the length of the crotch part to the total length of the diaper can be made relatively small. Therefore, when making it wear to the low weight child with a small body, it becomes easy to fit a crotch part firmly, and it becomes difficult to produce a clearance gap between the leg periphery opening of a diaper and the buttocks of a low weight child. Therefore, it is suitable for making a low weight child wear.

This tape-type diaper has a front wide portion where the length in the width direction of the front extension portion is maximum, and the rear side where the length in the width direction of the rear extension portion is maximum. It has a wide part, and it is desirable that the length of the front wide part in the width direction is longer than the length of the rear wide part in the width direction.

According to such a tape-type diaper, when a diaper is worn by a low-weight child, it is easy to perform the operation of pulling out the front extension part from the lower side of the abdomen of the low-weight child to the outside in the width direction. Easy to stretch. Further, it is easy to perform an operation of turning the front extension part to the ventral side along the waist of the low-weight child, and the fastening tape can be easily engaged with the target area on the back side. Therefore, it is suitable for a low-weight child taking a positioning posture to wear.

In this tape-type diaper, in the longitudinal direction, it is an imaginary line connecting the end on the other side of the front extension part and the end on the other side of the wide front part, and the longitudinal direction In the rectangular region having the imaginary line inclined inward in the width direction toward the other side, and having the imaginary line as a diagonal line, the non-existing region is larger than the existing region of the front extension part It is desirable.

According to such a tape-type diaper, since the opening around the leg is wide, the wearer can bend the leg strongly and comfortably as when in the womb. Moreover, since the area of a side flap is small, when passing a diaper between the legs of the low weight infant of a prone posture, a side flap is hard to be caught and wearability improves.

In such a tape-type diaper, it is desirable that the length of the front wide portion in the longitudinal direction is less than twice the length of the fastening tape in the longitudinal direction.

According to such a tape-type diaper, the length of the wide portion is not unnecessarily long compared to the fastening tape extending from the wide portion, and the area of the side flap is small. Therefore, when passing a diaper between the legs of a low weight infant in a prone posture, the side flaps are not easily caught and the wearability is improved.

In such a tape-type diaper, a liquid-absorbing absorber is disposed along the longitudinal direction at the center in the width direction, and the length of the absorber in the width direction is 60 mm or less. It is desirable.

According to such a tape-type diaper, since the width of the diaper can be narrowed with the side flaps folded, when the diaper is moved between the legs of the low-weight child, the diaper is a low-weight child. It becomes easy to suppress being caught on both legs.

In such a tape-type diaper, a liquid-absorbing absorber is disposed along the longitudinal direction in the center portion in the width direction, and when the wearer wears the front-side extension portion, When the fastening tape is engaged with the target region so that the outer end in the width direction and the outer end in the width direction of the rear extension portion are in contact with each other, the fastening tape and the absorber And do not overlap in the thickness direction.

According to such a tape-type diaper, when the diaper is worn by a low-weight child, even if the tightening around the waist is loosened, the engagement of the fastening tape is difficult to peel off. Thereby, it can suppress that a diaper remove | deviates from the body of a low weight child.

In such a tape-type diaper, it is desirable that the one end of the fastening tape and the one end of the absorbent body coincide with each other in the longitudinal direction.

According to such a tape-type diaper, when passing the diaper between the legs of a low-weight infant in a prone posture, the two points shifted in the longitudinal direction (the end of the fastening tape and the absorber) The edge) prevents the diaper from being crumpled and the diaper can be passed smoothly, so that the wearability is improved.

This tape-type diaper has a cut line for cutting at least a portion to which the fastening tape is fixed, and one end of the cut line is more than the other end of the side flap in the longitudinal direction. Is preferably located on the other side.

According to such a tape-type diaper, since one end of the cut line is disposed so as to be displaced from the base of the side flap where the force tends to concentrate (the other end), the cut line is inadvertently broken. Can be suppressed.

In such a tape-type diaper, in the cut-off line, through or non-through holes are intermittently arranged in the thickness direction, and the one end of the cut-out line is on a side end in the width direction of the tape-type diaper. It is desirable that the hole of the cut line is located inside the width direction with respect to the side end.

Such a tape-type diaper can prevent the cut line from being inadvertently broken starting from the hole located at the side edge of the diaper.

=== Embodiment ===
FIG. 1 is a schematic plan view of a diaper 1 in a developed and elongated state as viewed from the skin side in the thickness direction. FIG. 2A is a schematic cross-sectional view of the diaper 1 in the first waistline portion 1A. FIG. 2B is a schematic cross-sectional view of the diaper 1 in the crotch 1C. FIG. 3 is a schematic plan view of the diaper 1 and illustrates the three-dimensional gather unit 50.

The diaper 1 of the present embodiment has a maximum length in the longitudinal direction (so-called product length, L1 in FIG. 1) in a developed and expanded state as shown in FIG. It is suitably used for “low weight infants”). More specifically, the product length is preferably in the range of 210 mm to 330 mm, the product length for low weight children less than 2500 grams is about 310 mm, the product length for low weight children less than 1500 grams is about 270 mm, It is preferable to set the product length for low-weight infants of less than 1000 grams to about 230 mm.

The waist size of the diaper 1 when worn is preferably in the range of 160 mm to 295 mm. The waist size for low-weight children less than 2500 grams is about 273.5 mm, and the waist size for low-weight children less than 1500 grams is Preferably, the size is about 220 mm, and the waist size for low-weight infants less than 1000 grams is about 219 mm. The waist dimension in the wearing state is a dimension in a state in which a distal end in the width direction of a fastening tape 40 to be described later is aligned with a side end on the root side in the width direction of the hook member 42 included in the other fastening tape 40. In addition, when the elastic member is provided around the waist, it is set as the dimension in the state where the diaper 1 was extended in the width direction.

The state in which the diaper 1 is stretched is a state in which the diaper 1 is stretched so that the wrinkles generated in the diaper 1 are not substantially visually recognized, and each member constituting the diaper 1 (for example, a side sheet 6 described later) Etc.) is in a state where the diaper 1 is extended until the dimension of the member is equal to or close to the dimension of the member itself.

<< Basic configuration of diapers >>
In the unfolded state shown in FIG. 1, the diaper 1 has a longitudinal direction, a width direction, and a thickness direction, and from one side in the longitudinal direction, the first waistline portion 1A, the crotch portion 1C, and the second waistline portion 1B. And side by side. As shown in FIG. 2A and the like, the thickness direction is a direction in which members constituting the diaper 1 are stacked. In the thickness direction, the side in contact with the wearer is referred to as “skin side”, and the opposite side is referred to as “non-skin side”.

As shown in FIG. 2A and the like, the diaper 1 includes an absorbent body 2 that absorbs excreted fluid such as urine, a liquid-permeable top sheet 3 that covers the absorbent body 2 from the skin side, and the absorbent body 2 from the non-skin side. A liquid impervious leakproof sheet 4 to be covered, an outer sheet 5 that covers the leakproof sheet 4 from the non-skin side and forms the outer shape of the diaper 1, and a pair provided side by side in the width direction on the top sheet 3. Side sheet 6.

The top sheet 3 can be exemplified by an air-through nonwoven fabric, the leak-proof sheet 4 can be exemplified by a resin film such as a polyethylene film, and the exterior sheet 5 and the side sheets 6 can be SMS nonwoven fabric (spunbond / meltblown). / Spunbond nonwoven fabric) and the like.

The absorbent body 2 has a rectangular shape whose planar shape is long in the longitudinal direction, and has an absorbent core 2A and a core wrap sheet 2B that covers the outer peripheral surface of the absorbent core 2A. The absorbent core 2A is formed by molding a liquid absorbent material into a predetermined shape (in the present embodiment, a substantially rectangular

shape having notches

71 and 73 described later). As a liquid absorptive material, what contained superabsorbent polymer (what is called SAP) in liquid absorptive fibers, such as a pulp fiber, can be illustrated. Examples of the core wrap sheet 2B include liquid-permeable tissue paper and non-woven fabric, but the absorbent body 2 may not have the core wrap sheet 2B.

Side flaps 20 are provided on both sides of the absorbent body 2 in the width direction. As shown in FIG. 2A, the side flap 20 is configured by a part of the side sheet 6 and the exterior sheet 5. The side flap 20 includes a pair of first extending portions 20A extending to both outer sides in the width direction from the crotch portion 1B at the first waistline portion 1A (one side in the longitudinal direction), and a second waistline portion 1C (longitudinal direction). And the pair of second extending portions 20B extending to both outer sides in the width direction from the crotch portion 1B. In addition, a fastening tape 40 is fixed to each end portion on the outer side in the width direction of the pair of first extending portions 20A.

Fastening tape 40 has a tape base 41 and a hook material 42. The tape base material 41 is, for example, a non-woven member and has a substantially rectangular shape that is long in the width direction. The hook member 42 (for example, a male member of a hook-and-loop fastener) is provided on the skin side surface of the portion of the tape base material 41 that protrudes outward in the width direction from the first extending portion 20A of the side flap 20.

The fastening tape 40 can be engaged with a target region 45 (see FIG. 1) which is a predetermined region provided on the non-skin side of the exterior sheet 5 in the second waistline portion 1C. In this embodiment, the hook sheet 42 can be directly locked to the outer sheet 5 (target region 45) by making the outer sheet 5 non-woven. However, the present invention is not limited to this, and a member that is easily hooked by the hook member 42 such as a female member of a hook-and-loop fastener may be provided separately from the exterior sheet 5. Further, instead of the hook material 42, for example, an adhesive tape may be provided on the fastening tape 40.

When the diaper 1 is worn, the unfolded diaper 1 is folded in half at a substantially central position CL (see FIG. 1) in the longitudinal direction while being applied to the wearer's body, and a pair on the first waistline portion 1A side. The first extending portion 20A is folded back inward in the width direction. And each hook material 42 provided in a pair of fastening tape 40 is latched by the target area | region 45 provided in the non-skin side surface of 2 C waist part 1C. Thereby, the trunk periphery opening and leg periphery opening of the diaper 1 are formed, and the position of the diaper 1 can be fixed with respect to a wearer's body (torso).

Moreover, the diaper 1 has a pair of three-dimensional gather parts 50 as leak-proof walls at positions on both sides in the width direction. As shown in FIG. 3, each three-dimensional gather portion 50 is positioned at both ends in the longitudinal direction and elastic members 51 (for example, rubber thread) for the three-dimensional gather portion 50 that can expand and contract in the longitudinal direction, and in the thickness direction. A pair of first base end portions 52 that cannot stand up to each other, and located across the entire length of the diaper 1 outside the first base end portion 52 in the width direction and cannot stand up in the thickness direction. It has the 2nd base end part 53 and the standing part 54 which can stand up to the skin side of the thickness direction.

The first base end portion 52 and the second base end portion 53 have a rectangular shape elongated in the longitudinal direction, and are formed by fixing the side sheet 6 to the top sheet 3. Examples of the fixing method include known methods such as adhesion and welding with a hot melt adhesive. In FIG. 3, two first base end portions 52 are arranged in the width direction at each longitudinal end portion of each three-dimensional gather portion 50, but this number is not limited to two.

Moreover, as shown to FIG. 2B, the side part of the inner side of the width direction of the side sheet | seat 6 is turned back to the skin side, and between the side sheet | seats 6 which became two layers in that way, it is The elastic member 51 is fixed in an elongated state in the longitudinal direction. Therefore, the upright portion 54 that is the portion of the side seat 6 between the pair of first base end portions 52 included in each three-dimensional gather portion 50 has a thickness direction with the second base end portion 53 as a fulcrum as the elastic member 51 contracts. Stand on the skin side. In addition, in FIG. 3, the number of the elastic members 51 which each solid gathering part 50 has is one, However, Not only this but the some elastic member 51 may be located in a line with the width direction.

Further, a pair of leg-around elastic members 7 (for example, rubber thread) that extend along the wearer's legs and extend in the longitudinal direction on both sides of the diaper 1 in the width direction, mainly at the position of the crotch 1B. Is provided. Specifically, the leg-hole elastic member 7 is provided outside the second base end portion 53 in the width direction in the expanded and extended state shown in FIG. The leg-hole elastic member 7 is fixed to the non-skin side surface of the side sheet 6 in an elongated state in the longitudinal direction. Therefore, when the diaper 1 is worn, each side portion in the width direction of the diaper 1 fits around the wearer's leg, and excrement leakage is suppressed. In FIG. 1, the two leg-hole elastic members 7 are arranged in the width direction at each side portion of the diaper 1 in the width direction, but this number is not limited to two.

In the above description, thread rubber is illustrated as the elastic member 51 for the three-dimensional gather portion 50 and the leg-hole elastic member 7, but the present invention is not limited thereto. These

elastic members

51 and 7 may be, for example, a thread-like polyurethane stretchable fiber, a stretchable film formed by melting a thermoplastic elastomer resin, or a stretchable nonwoven fabric made of stretchable fibers.

<About wearing diapers 1>
When an infant larger than 3000 grams is to wear a tape-type diaper, the diaper is usually worn in a state where the infant is laid on its back after the diaper has been spread in the longitudinal direction. Further, the first waistline 1A to which the fastening tape 40 is fixed is worn on the back side, and the second waistline 1B is worn on the stomach side.

On the other hand, there is an idea that it is desirable that low-weight infants who are born with a low body weight of 3000 grams or less (especially less than 2500 grams) should spend their prone position in the womb. The posture when in the womb is a state in which the back is curled in a C shape by leaning with the belly facing down, and both knees are bent in an M shape and both knees are attracted to the abdomen. . Hereinafter, such a posture peculiar to a low weight child is also referred to as a “positioning posture”.

FIG. 4A is a diagram illustrating a state in which a diaper 1 is worn by a low-weight child taking a positioning posture. FIG. 4B is a diagram illustrating a state in which a low-weight child taking a positioning posture is worn with the front and back of the diaper 1 reversed. When a diaper 1 is worn by a low-weight child in a positioning posture, it is desirable to avoid touching the low-weight child's body as much as possible. It is desirable to wear it as it is. Therefore, when the first waistline portion 1A is worn as usual so as to cover the back side as shown in FIG. 4A (hereinafter also referred to as “front-rear normal wear”), a hand is placed under the abdomen of a low-weight child in a prone posture. The fastening tape 40 must be locked and removed, and the operability is not good.

In addition, low-weight infants are generally raised in incubators in hospitals and the like. Therefore, when a diaper is worn by a low-weight child, an operator (a person who attaches / detaches the diaper to / from a low-weight child) works in a narrow space through his / her hand through a work window provided in the incubator. There is a need. For example, when wearing a diaper of a low-weight infant in a positioning position in an incubator, the operator passes the diaper between the legs of the low-weight infant with one hand and pulls it out to the ventral side with the other hand Is required and there is a limitation in operability.

On the other hand, in the diaper 1 of the present embodiment, as shown in FIG. 4B, the diaper 1 is worn so that the front and back of the diaper 1 are reversed and the first waistline portion 1A covers the abdomen (hereinafter referred to as “reverse wearing front and back”). By doing so, work can be performed without placing a burden on the body of the low-weight child. Hereinafter, the operation | movement at the time of carrying out reverse wearing of the diaper 1 with respect to a low weight child is demonstrated. In addition, when performing front and back reverse wearing, since the 1st waistline part 1A of the diaper 1 is located in a wearer's front side (abdominal side), in this specification, the 1st waistline part 1A is "front side waistline part 1A." The first extension 20A is also referred to as “front extension 20A”. Similarly, since the second waistline portion 1B of the diaper 1 is located on the back side (back side) of the wearer, the second waistline portion 1B is also referred to as the “rear waistline portion 1B”, and the second extending portion 20B is referred to. Also called “rear extension 20B”.

When the diaper 1 is worn back and forth with respect to a low-weight child in a positioning posture, first, the front waistline portion 1A of the diaper 1 is applied to the ventral side of the low-weight child. At this time, the pair of side flaps 20 (the front extending portion 20A and the fastening tape 40) are respectively folded inward in the width direction so that the width direction dimension of the diaper 1 is as small as possible, and between the wearer's legs. Is inserted from the crotch side to the ventral side, and the front waistline portion 1A is inserted. Further, the rear waistline portion 1B is applied to the back side of the low-weight child.

In addition, the minimum value of the width direction dimension of the diaper 1 in the state by which the side flap 20 was folded is substantially equivalent to the width direction dimension of the absorber 2. Since the absorbent body 2 is thicker and more rigid than the nonwoven fabrics constituting the side sheet 6 and the top sheet 3, the side flap 20 is positioned at both ends (edges) in the width direction of the absorbent body 2. It is because it becomes easy to bend in the width direction. In this embodiment, the length (dimension) in the width direction of the absorber 2 mounted on the diaper 1 is set to 60 mm or less. Thereby, when it inserts between both legs of a low weight child, 1 A of front side waist parts become difficult to get caught in both legs. However, if the length (dimension) in the width direction of the absorbent body 2 is too short, excretion cannot be absorbed and side leakage or the like is likely to occur. Therefore, the length of the absorbent body 2 in the width direction needs to have a predetermined width, and specifically, it is desirably about 50 mm.

After the front waistline portion 1A is applied to the abdomen of the low-weight child, the folded front extension portion 20A and the fastening tape 40 are unfolded so as to be drawn out from below the abdomen of the low-weight child in the width direction. To do. Then, the unfolded front extension 20A and the fastening tape 40 are turned from the ventral side to the dorsal side along the waistline of the low-weight child, and the fastening tape is applied to the target region 45 of the rear waistline part 1B disposed on the back part. 40 (hook member 42) is engaged. By performing these operations, the diaper 1 can be worn reversely as shown in FIG. 4B.

<About the structure of the side flap 20>
When a tape-type diaper is worn backward and forward for a low-weight child, the front extension and fastening tape are caught by the abdomen and both legs of the low-weight child when the folded side flaps are unfolded. There is a risk of damaging the child's skin and putting a burden on the body. Moreover, by changing the front and back of the diaper, the fit may deteriorate and excrement may leak out.

On the other hand, in the diaper 1 of this embodiment, by giving the shape to the shape of the side flap 20, the above-described problems are less likely to occur, and a burden is placed on the body of a low-weight child when wearing back and forth. It can suppress that it spends.

FIG. 5 is a plan view for explaining the structure of the side flap 20. FIG. 6 is an enlarged plan view of the front extension 20A.

As shown in FIG. 5, the front extension part 20 A and the rear extension part 20 B of the diaper 1 extend outward in the width direction while being curved. Specifically, the front extension portion 20A is located between the crotch 1C and the front waistline portion 1A from the other side (inner side) in the longitudinal direction to one side (outer side) and outward in the width direction. And extending while drawing a curve. Similarly, the rear extension 20B extends from one side (inner side) to the other side (outer side) in the longitudinal direction and on the outer side in the width direction between the crotch 1C and the rear waistline 1B. Extending while drawing a curve. As described above, since the outer edges of the extending

portions

20A and 20B are configured in a curved shape, even if the extending

portions

20A and 20B are in contact with the skin of a low-weight child, they are damaged. It is difficult.

Then, assuming that the maximum value of the curvature of the portion where the front side extending portion 20A begins to extend in a curved shape is R1, and the maximum value of the curvature of the portion where the rear side extending portion 20B starts to extend in a curved shape is R2, the value of R1 The front extension part 20A and the rear extension part 20B are formed so that the direction becomes larger than R2 (R1> R2). That is, the root portion where the front extension 20A begins to extend has a narrower shape than the root portion where the rear extension 20B begins to extend. As described above, the front extending portion 20A (fastening tape 40) is laterally extended from the lower side of the belly of the low-weight child along the waistline in the operation of causing the low-weight child wearing the positioning posture to wear the diaper 1. It is a part pulled out outside. In this operation, since the outer edge on the other side (inner side) in the longitudinal direction of the front extension 20A passes near both legs of the low-weight child, there is a possibility that it will contact the skin (leg) of the low-weight child. is there. Therefore, in the diaper 1, when the diaper 1 is worn backward and forward by increasing the constriction at the base portion of the front extension part 20 A as compared with the rear extension part 20 B, the front extension part 20 A has a low weight. The child's body (both legs) is made as difficult to contact as possible. In addition, when a low-weight child taking a positioning posture wears the diaper 1, tightening due to the front extending portion 20 A covering the base of the leg (socket portion) can be reduced, so that a low-weight child is natural. It becomes easy to maintain posture. On the other hand, since the rear extension 20B is not constricted as much as the front, it is possible to cover the buttocks firmly in the mounted state and the butt is difficult to protrude. By these, it is possible to prevent the low-weight infant from being damaged or burdened while facilitating the operation of pulling out the front extension 20A. Furthermore, the fit at the time of wearing diaper 1 can be improved.

Moreover, in the diaper 1, the length L1A in the longitudinal direction of the front extension part 20A is longer than the length L1B in the longitudinal direction of the rear extension part 20B (L1A> L1B). Here, “the length of the front extension 20 A in the longitudinal direction” is represented by the distance between the

points

26 and 22 in the longitudinal direction in FIG. 5. The point 26 is a position where the length in the width direction becomes the smallest when the length in the width direction becomes shorter along one outer side (outer side) in the longitudinal direction along the outer edge of the front side extending portion 20A. is there. Similarly, the point 22 has the smallest length in the width direction when the length in the width direction is shortened toward the other side (inner side) in the longitudinal direction along the outer edge of the front extending portion 20A. Is the position. Further, the length L1B in the longitudinal direction of the rear extension 20B is defined in the same manner.

By making the length L1A longer than L1B, when the diaper 1 is worn, the abdomen of the wearer (low-weight child) is easily covered with the front extending portion 20A, and the low-weight child sleeping in a lean state It is easy to suppress the excretion such as urine from leaking on the front side (ventral side). Moreover, even if L1 is lengthened, since the curvature of the base portion of the front extension 20A is large in the diaper 1 as described above, the front extension 20A is not easily caught on the wearer's leg, and the diaper 1 is worn back and forth. It is hard to get in the way.

The length L1A of the front extension 20A in the longitudinal direction is not less than ¼ and not more than 1/3 of the length L1 in the longitudinal direction of the diaper 1 in the expanded and extended state (1 / 3 × L1 ≧ L1A ≧ 1/4 × L1). When the ratio of the length of the front extension part 20A to the total length of the diaper 1 is 1/4 or more, the area of the front extension part 20A is likely to be larger than that of a conventional tape-type diaper, and the front extension part 20A easily covers a wide area on the wearer's stomach side. On the other hand, when the ratio of the length of the front extension part 20A to the total length of the diaper 1 is 1/3 or less, the area ratio and balance of each region of the front waistline part 1A, the rear waistline part 1B, and the crotch part 1C are increased. It becomes difficult to collapse, and it becomes easier to fit the whole diaper 1 to the body of a low-weight child when worn.

Further, the sum of the length L1A of the front extension 20A and the length L1B of the rear extension 20B in the longitudinal direction is equal to or greater than ½ of the length L1 of the diaper 1 in the developed and extended state. It is. That is, the length L1C in the longitudinal direction of the crotch portion 1C sandwiched between the front waistline portion 1A and the rear waistline portion 1B is smaller than the sum of L1A and L1B. Thereby, the ratio of the length L1C of the crotch part 1C with respect to the full length L1 of the diaper 1 becomes relatively small. Therefore, when a low-weight child with a small body wears it, the part of the crotch 1C can easily fit firmly into the crotch region of the low-weight child, and the leg opening of the diaper 1 and the buttocks of the low-weight child Since it becomes difficult to generate a gap between the two, it is suitable for a low-weight child to wear.

The front extension 20A has a front wide portion 21A having a maximum length in the width direction, and the rear extension 20B has a rear wide portion 21B having a maximum length in the width direction. . The length L2A in the width direction of the front wide portion 21A is longer than the length L2B in the width direction of the rear wide portion 21B. That is, the front side extending portion 20A has a larger amount of extension outward in the width direction than the rear wide portion 21B. Thus, when the length of the front extension part 20A in the width direction is long, when the diaper 1 is worn reversely in the low weight child, the front extension part 20A is arranged in the width direction from the lower side of the belly of the low weight child. It is easy to perform the operation of pulling out the outer side of the tape, and it is easy to stretch the fastening tape 40 fixed to the front extension 20A in the width direction. Further, after pulling out the front extension part 20A, it is easy to perform an operation of turning the front extension part 20A to the ventral side along the waist of the low-weight child, and the fastening tape 40 is engaged with the target region 45 on the back side. It becomes easy to do. Therefore, it is suitable for the low weight child who is taking a positioning posture to wear it back and forth.

Further, as shown in FIG. 6, the diaper 1 is an imaginary line Lc that connects the root point 22 on the other side of the front extension 20 A and the end 23 on the other side of the wide portion 21 in the longitudinal direction. And an imaginary line Lc inclined inward in the width direction toward the other side in the longitudinal direction. In the diaper 1, in the rectangular area A having the imaginary line Lc as a diagonal line, the non-existing area is larger than the existing area (shaded part) of the front extension 20A.

That is, the side 24 of the front extending portion 20A is bored inside the virtual line Lc. In other words, the side 24 of the front extension 20A is curved so as to protrude toward the side flap side (D1 side) in the direction orthogonal to the virtual line Lc. Therefore, in the front extension part 20A of the present embodiment, for example, the area is smaller than the extension part that curves so as to protrude toward the side opposite to the side 24 (the side opposite to D1). . Therefore, when the diaper 1 is passed (inserted) between the legs of a low-weight infant in a prone posture, the front extension part 20A is difficult to be caught on the legs and can be passed smoothly, and the wearability of the diaper 1 is improved. Get better.

Moreover, since the front extension 20A is curved so as to protrude toward the side flap side (D1 side), the leg opening is wide. Therefore, it becomes easy for the low-weight child to take a positioning posture in which the leg is bent strongly, and the wearing comfort is improved. Moreover, it is possible to prevent the front extension 20A from being turned over to the non-skin side by the leg of the low-weight child taking the positioning posture, and to easily prevent the excrement from leaking around the leg.

Furthermore, in the front extension 20A of the present embodiment, the length L3A in the longitudinal direction of the wide portion 21A is less than twice the length L4A in the longitudinal direction of the fastening tape 40 (L3A <2 × L4A). . That is, with respect to the fastening tape 40 extending from the wide portion 21A, the length of the wide portion 21A does not become longer than necessary, and the area of the front extension portion 20A at the outer end in the width direction is smaller. . Therefore, when passing the diaper 1 between the legs of the low-weight infant in the prone posture, the front extension part 20A becomes more difficult to be caught, and the wearability of the diaper 1 is improved.

Note that the length L4A in the longitudinal direction of the fastening tape 40 may not be constant. In that case, the length L3A in the longitudinal direction of the wide portion 21A is less than twice the maximum length in the longitudinal direction among the portions of the fastening tape 40 extending from the front extending portion 20A, or the root (width direction). It is preferable that it is less than twice the length in the longitudinal direction of the inner end). However, the length L3A in the longitudinal direction of the wide portion 21A is, for example, less than twice the minimum length in the longitudinal direction of the portion of the fastening tape 40 extending from the front extending portion 20A. It may be less than twice the length in the longitudinal direction of the portion of the fastening tape 40 fixed to the front extension 20A.

Further, when the diaper 1 is passed between the legs of the low weight infant with the fastening tape 40 side forward, the end 40b on one side (outside) of the fastening tape 40 and the one side in the longitudinal direction of the absorbent body 2 are disposed. At the end 2a, a difference in rigidity occurs in the longitudinal direction, and the diaper 1 is easily broken. Therefore, as shown in FIG. 3, in the longitudinal direction, the end 40b on the most one side (outer side) of the fastening tape 40 and the end (2b) on the most side of the absorbent body 2 are preferably matched.

By doing so, when passing the diaper 1 between the legs of the low weight infant with the fastening tape 40 side forward, two points shifted in the longitudinal direction (the end of the fastening tape 40 and the end of the absorbent body 2) are broken. As a starting point, the diaper 1 can be prevented from being crumpled. Therefore, the diaper 1 can be passed smoothly and the wearability of the diaper 1 is improved. Moreover, generation | occurrence | production of the clearance gap by the bending of the diaper 1 can be prevented, and the leakage of excrement can be suppressed.

Also, when the diaper 1 is worn by a low-weight child, the fastening tape 40 is adjusted to be engaged so that the tightening around the waist is loosened, rather than fitting it firmly to the body. There is. FIG. 7 is a diagram for explaining a case where the diaper 1 is worn reversely so that the waistline is loosened. In the state of FIG. 7, the fastening tape 40 is engaged with the target region 45 so that the outer end 21Ae in the width direction of the front extension portion 20A and the outer end 21Be in the width direction of the rear extension portion 20B are in contact with each other. Yes. That is, the fastening tape 40 is engaged in a state where the waistline is loosened to such an extent that the front extension 20A and the rear extension 20B do not overlap in the thickness direction. And when fastening tape 40 is engaged in such a state, fastening tape 40 and absorber 2 do not overlap in the thickness direction. As shown in the AA sectional view of FIG. 7, the thickness in the thickness direction is increased at the portion where the absorber 2 is disposed, and the absorber 2 is disposed in the rear waistline portion 1B. A step in the thickness direction is generated between the portion and the portion where the absorber 2 is not disposed.

If the fastening tape 40 is overlapped and engaged with the stepped portion, a sufficient engagement force cannot be obtained and the fastening tape 40 may be peeled off. In particular, when the fastening around the waist is loosened as shown in FIG. 7, if the fastening tape 40 is peeled off, the entire diaper 1 may be greatly displaced from the worn body, and excrement may leak out. On the other hand, in the diaper 1, when the waistline is loosened to such an extent that the front extension part 20A and the rear extension part 20B do not overlap in the thickness direction, the fastening tape 40 has a small step in the rear waistline part 1B. Since it engages with a part (there is no step), the possibility that the diaper 1 is detached from the wearer's body is reduced.

Further, as shown in FIG. 1, the diaper 1 has a cut line 60 for cutting a portion (a portion indicated by a dotted line) where the fastening tape 40 is fixed to the front waistline portion 1A. In addition, since the diaper 1 has a pair of fastening tapes 40, it also has a pair of cut lines 60. FIG. 8 is a diagram for explaining the cut line 60.

As shown in FIG. 8, the cut line 60 of the present embodiment is formed by perforations, and is formed by intermittently penetrating or non-penetrating holes 61 in the thickness direction. However, the present invention is not limited to this, as long as a part of the diaper 1 can be easily separated from the main body along the cut line 60. For example, the cut line 60 may be formed by a groove-shaped continuous recess.

Moreover, the cut line 60 of this embodiment is the fixing part 43 (displayed with the broken line in FIG. 8) of the fastening tape 40 from the edge 1b of the longitudinal direction one side of the diaper 1 (part which becomes a trunk periphery opening at the time of wear). Further, it extends toward the side end 1a in the width direction of the diaper 1 (a portion that becomes an opening around the leg when worn) through a position on the inner side in the width direction. More specifically, the cut line 60 includes a straight line portion extending in the longitudinal direction from one end 1b in the longitudinal direction of the diaper 1 and a curved portion curved from the straight portion toward the side end 1a in the width direction of the diaper 1. And have. However, the shape of the cut line 60 is not limited to that shown in the figure, and any shape may be used as long as the fixing portion 43 of the fastening tape 40 can be cut.

When the diaper 1 has the cut line 60, for example, in the case of reverse mounting (FIG. 4B), the fastening tape 40 is engaged with the rear waistline 1C located on the back side by cutting the cut line 60. The diaper 1 expands in the longitudinal direction in a stopped state. Therefore, the diaper 1 can be pulled out without passing the front waistline portion 1A, to which the hard fastening tape 40 is fixed, between the legs of the low-weight child, and the burden on the skin of the low-weight child can be reduced.

Further, as shown in FIG. 8, one end 62 of the cut line 60 (end 62 extending toward the side end 1a in the width direction of the diaper 1) is the other end 22 (side of the side flap 20 in the longitudinal direction). It is located on the other side of the root point 22) of the flap 20. As described above, it is preferable to dispose the root point 22 of the side flap 20 where the force is easily concentrated and the one end 62 of the cut line 60 by shifting in the longitudinal direction.

By doing so, for example, when the fastening tape 40 is pulled outward in the width direction for mounting the diaper 1, the cutting line 60 may be inadvertently broken starting from the one end 62 of the cutting line 60. Can be prevented. Further, when the diaper 1 is passed between the legs of the low weight child with the fastening tape 40 facing forward, even if the side flap 20 is caught on the leg of the low weight child, the cut line 60 is inadvertently broken. Can be prevented.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. Further, the present invention can be changed or improved without departing from the gist thereof, and needless to say, the present invention includes equivalents thereof.

1 diapers (tape diapers),
1A 1st waistline part (front side waistline part),
1B Second waistline part (rear waistline part),
1C Inseam,
2 Absorber, 2A Absorbent core, 2B Core wrap sheet,
3 Top sheet, 4 Leak-proof sheet, 5 Exterior sheet,
6 side seats, 7 leg elastic members,
20 side flaps,
20A 1st extension part (front extension part),
20B 2nd extension part (rear side extension part),
21 Wide part,
40 fastening tape, 41 tape base material, 42 hook material, 45 target area,
50 three-dimensional gather part, 51 elastic member, 52 1st base end part (base end part),
53 second base end part, 54 standing part,
60 cut lines, 61 holes,
Lc imaginary line, A rectangular area,

Claims

Having a longitudinal direction, a width direction and a thickness direction;
A tape-type diaper for a low-weight child whose maximum length in the longitudinal direction in the expanded and extended state is 330 mm or less,
A pair of front extension parts extending to both outer sides in the width direction on one side in the longitudinal direction, and a pair of rear extension parts extending to both outer sides in the width direction on the other side in the longitudinal direction. Side flaps with
Fastening tape fixed to the pair of front extension parts,
A target region provided on the other side of the longitudinal direction and engaged with the fastening tape;
Have
When the wearer who is sleeping in a posture in which both legs are bent with the abdomen facing down, one side of the longitudinal direction is assigned to the abdomen side of the wearer, and the front extension part is attached to the wearer's side. It is possible to engage the target region on the back side of the wearer with the pair of fastening tapes by turning from the abdominal side to the back side along the waist.
The maximum value of the curvature of the portion where the front extending portion begins to extend while drawing a curve from the other side toward the one side and toward the outer side in the width direction is from the one side toward the other side. And the tape-type diaper characterized by being larger than the maximum value of the curvature of the portion where the rear side extension portion begins to extend while drawing a curve toward the outside in the width direction.
The tape-type diaper according to claim 1,
The tape-type diaper, wherein a length of the front extension part in the longitudinal direction is longer than a length of the rear extension part in the longitudinal direction.
The tape-type diaper according to claim 1 or 2,
The length of the front extension part in the longitudinal direction is:
A tape-type diaper characterized in that it is not less than ¼ and not more than ３ of the length in the longitudinal direction of the tape-type diaper in a developed and extended state.
The tape-type diaper according to any one of claims 1 to 3,
The sum of the length in the longitudinal direction of the front extension part and the length in the longitudinal direction of the rear extension part is:
A tape-type diaper, characterized in that the tape-type diaper is not less than ½ of the length in the longitudinal direction of the tape-type diaper in a developed and extended state.
The tape-type diaper according to any one of claims 1 to 4,
A front wide portion having a maximum length in the width direction of the front extending portion;
A rear wide portion having a maximum length in the width direction of the rear extension,
The length of the front wide portion in the width direction is longer than the length of the rear wide portion in the width direction.
The tape-type diaper according to claim 5,
In the longitudinal direction, it is an imaginary line that connects the end on the other side of the front extension part and the end on the other side of the wide front part, and toward the other side in the longitudinal direction. Having the imaginary line inclined inward in the width direction;
The tape-type diaper, wherein a non-existing area is larger than an existing area of the front extending portion in a rectangular area having the imaginary line as a diagonal line.
The tape-type diaper according to claim 5 or 6,
The tape-type diaper characterized in that the length of the front wide portion in the longitudinal direction is less than twice the length of the fastening tape in the longitudinal direction.
A tape-type diaper according to any one of claims 1 to 7,
In the central portion in the width direction, a liquid-absorbing absorber is disposed along the longitudinal direction,
The length of the absorbent body in the width direction is 60 mm or less.
A tape-type diaper according to any one of claims 1 to 8,
In the central portion in the width direction, a liquid-absorbing absorber is disposed along the longitudinal direction,
When the wearer wears the fastening tape, the outer end in the width direction of the front extension and the outer end in the width of the rear extension are in contact with each other. When engaged with a region,
The tape-type diaper, wherein the fastening tape and the absorber do not overlap in the thickness direction.
It is a tape type diaper according to claim 8 or 9,
The tape-type diaper characterized in that, in the longitudinal direction, an end of the one side of the fastening tape is coincident with an end of the one side of the absorber.
A tape-type diaper according to any one of claims 1 to 10,
Having a cut line for cutting at least a portion where the fastening tape is fixed;
One end of the cut line is located on the other side with respect to the other end on the other side of the side flap in the longitudinal direction.
The tape-type diaper according to claim 11,
In the cut line, through or non-through holes are intermittently arranged in the thickness direction,
The one end of the cut line extends toward the side end in the width direction of the tape-type diaper,
The tape-type diaper, wherein the hole of the cut line is located on the inner side in the width direction than the side end.