TWM577310U - Disposable diaper for low-birth-weight infant - Google Patents

Abstract

A disposable diaper (1) for low-weight children, which is a disposable diaper having a long-side direction and a wide-side direction and having a low-weight body for an absorbent core (2) (1) The absorptive core (2) is a first bending inducing portion (21a) and a second bending inducing portion that are induced to bend in a widthwise direction at different positions in the longitudinal direction. (21b) and the third bending inducing portion (21c).

Description

Disposable disposable diapers for low birth weight infants

This creation is about a disposable diaper for low birth weight children.

In the disposable disposable diaper of Patent Document 1, the first notch and the second notch are formed in the center portion in the longitudinal direction of the absorbent core, and the underarm region can be maintained in a flat shape when worn. The first notch and the second notch are notched shapes extending from the outer edge of the absorbent core toward the inner side in the widthwise direction. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2016-77751

[Question to be solved by the creative]

However, low-weight children born with low body weight are often squatted in the posture of the fetus. The intercondylar portion of the low-weight child who was pulled by the knees to the left and right of the abdomen was located on the ventral side of the intercondyle of the infant who was lying on the reclining foot. Therefore, in the case of the patent document 1, the disposable diaper is set in the center part of the longitudinal direction of the absorptive core, and the diaper which provided the notch is not easy to adhere to the inter-turn part of a low-weight infant.

Further, in the case of installing the disposable diaper, the baby is usually placed on his back, and the waist portion on the side of the fastening tape is laid on the back of the baby, and the adhesive tape is locked on the abdominal side. However, in the case of a low-weight child, there is a tendency to reduce the touch by touching the body as much as possible. Therefore, there is a case where the diaper is directly replaced by a low-weight child in a state of squatting. There is a case where the diaper can be attached backward and backward on the back side by the locking of the fastening tape. Therefore, the disposable disposable diapers for low-weight children must be assumed to be normally installed and placed upside down.

In view of the above, the purpose of the present invention is to provide a low-weight child who can be attached to a low-weight child who takes a posture in the tire even when it is installed upside down. A disposable diaper. [Means for solving problems]

The main invention for achieving the above object is a disposable diaper for low-weight children, which has a long-side direction and a broad-side direction, and has an absorbent core for low-weight use. In the above-mentioned absorbent core, the first bending inducing portion, the second bending inducing portion, and the second bending inducing portion are formed at different positions in the longitudinal direction at the different positions in the longitudinal direction. The third bending induction unit. Other features of the present invention will be apparent from the description of the present specification and the accompanying drawings. [Creation effect]

According to the present invention, a disposable diaper for low-weight children who can also be attached to a low-weight child who takes a posture in the tire when the diaper is usually installed upside down can be attached. .

At least the following matters will be understood from the description of the specification and the accompanying drawings. A disposable disposable diaper for low-weight children, which is a disposable diaper having a long-side direction and a broad-side direction and having an absorbent core for low-weight use, characterized in that: the aforementioned absorption The core has a first bending inducing portion, a second bending inducing portion, and a third bending inducing portion that are bent at different positions in the longitudinal direction at the different width directions.

According to such a disposable diaper for low-weight children, when a diaper is usually installed, it can be attached to a low-weight child who takes a posture in the tire when it is placed upside down.

The disposable diaper for a low-weight child, wherein the second bending-inducing portion is in the center of the disposable diaper in the longitudinal direction, the first bending inducing portion, and the aforementioned The third bending inducing portion is disposed symmetrically with respect to the center of the disposable disposable diaper in the longitudinal direction.

According to such a disposable diaper for low-weight children, when a diaper is usually installed, it can be attached to a low-weight child who takes a posture in the tire when it is placed upside down.

A disposable disposable diaper for a low-weight child, wherein the second bending-inducing portion is in the center of the disposable diaper in the longitudinal direction, and the first bending-inducing portion is long in the length In the center of the center of the disposable diaper in the side direction and the one end of the one side, the third bending inducing portion is located at the center and the other side of the disposable diaper in the longitudinal direction. The center of the end.

According to such a disposable diaper for low-weight children, it is attached to a low-weight child who pulls the foot to the left and right sides of the knee.

In the disposable disposable diaper for a low-weight child, the absorbent core has a narrow portion having a narrower width than the end portion in the center portion in the longitudinal direction, and the first bending induction portion and the second portion The bending inducing portion and the third bending inducing portion are located in the narrow portion.

According to such a disposable diaper for low-weight children, the width of the absorbent core which abuts on the crotch portion of the low-weight child is narrowed. Therefore, low birth weight children are easy to move their feet. In addition, when the feet of low-weight children are picked up, it is possible to suppress the absorption of the skin by the absorbent core.

In the disposable diaper for a low-weight child, the second bending-inducing portion is located at a central portion of the narrow portion in the longitudinal direction, and the first bending-inducing portion is longer than the longitudinal direction The center of the narrow portion and the center of the one end are located on the other side, and the third bending inducing portion is located on the other side from the center of the narrow portion and the center of the other end in the longitudinal direction.

According to such a disposable diaper for low-weight children, it is attached to a low-weight child who pulls the foot to the left and right sides of the knee.

In the disposable diaper for a low-weight child, at least one of the first bending inducing portion and the third bending inducing portion is narrowed in the width of the absorbent core in the narrow portion. The starting part.

According to such a disposable diaper for low-weight children, it is attached to a low-weight child who pulls the foot to the left and right sides of the knee. Further, the inclination of the outline of the narrow portion is steep, and the width of the absorbent core is narrowed in a wider range in the longitudinal direction, and it is easy to pull up the foot of the low birth weight.

Such a disposable diaper for low-weight children, wherein the absorbent core has a symmetrical shape in the longitudinal direction.

According to such a disposable diaper for low-weight children, when a diaper is usually installed, when it is installed upside down, it is also possible to bond a low-weight child who takes a posture in the tire.

A disposable disposable diaper for a low-weight child having a pair of the first and second sides of the longitudinal direction extending toward the outer side in the width direction and having a pair of fastening tapes a pair of second side flaps extending toward the outer sides in the widthwise direction on the other side in the longitudinal direction, and the first bending induction is sequentially provided from the one side in the longitudinal direction In the second bending inducing portion and the third bending inducing portion, the first bending inducing portion, the second bending inducing portion, and the third bending inducing portion are respectively in the absorbent core Both side portions in the wide side direction form a pair of notched portions that are convex toward the inner side in the wide side direction.

According to such a disposable disposable diaper for low-weight children, the absorbent core can be bent at the first to third bending inducing portions.

In the disposable disposable diaper for a low-weight child, the apex of the notch portion of the first bending inducing portion is located at the end of the other side of the fastening tape in the longitudinal direction The other side.

According to the disposable disposable diaper for low-weight children, the first bending inducing portion is not positioned at a position where the foot is not pulled up, and the first bending-inducing portion is at a position corresponding to the pulled-up foot.

In the disposable disposable diaper for a low-weight child, the one end side of the second side flap in the longitudinal direction is located longer than the apex of the notch portion of the third bending induction portion. The other side of the side in the side direction.

When the third bending inducing portion folds a part of the disposable diaper toward the non-skin side for use in the disposable disposable diaper for the low-weight child, the entire second flank is folded back. Therefore, it is easy to fold the disposable diaper.

A disposable disposable diaper for a low-weight child, wherein the length from the apex of the notch portion of the third bending inducing portion to the end of the other side of the absorbent core in the longitudinal direction The length in the side direction is equal to or longer than the length of the above-mentioned fastening tape in the longitudinal direction.

When the third bending inducing portion folds a part of the disposable diaper toward the non-skin side for use in the disposable diaper for a low-weight child, it is easy to lock the adhesive tape to the retracted absorbent. The core makes the lock stable.

A disposable disposable diaper for a low-weight child, in which the disposable diaper is unfolded and stretched in the longitudinal direction, and the first bending inducing portion and the aforementioned The length of the end in the longitudinal direction of the apex of each of the notch portions of the second bending inducing portion to the other end of the above-mentioned fastening tape in the longitudinal direction is the first length, and the third bending is performed from the third bending When the length of the apex of the notch portion of the folding-inducing portion to the other end of the disposable diaper in the longitudinal direction is the second length, the longitudinal direction is induced from the third bending. The apex of the notch portion of the portion is located away from the second length toward the one side, and is located on the one side from a position away from the first length toward the other side from the center.

When the third bending inducing portion folds a part of the disposable diaper toward the non-skin side for use in the disposable diaper for low-weight children, it is difficult to lock the fastening tape to the folded diaper. At the end, the lock is stabilized.

A disposable disposable diaper for a low-weight child, wherein a pair of three-dimensional folded portions are disposed on both sides of the wide-side direction of the disposable disposable diaper, and the three-dimensional folded portion is borrowed The elastic member for the three-dimensional folded portion that expands and contracts in the longitudinal direction can be erected toward the skin side, and the center of the elasticized portion of the elastic member for the three-dimensional folded portion is smaller than the disposable disposable diaper in the longitudinal direction. The center of the center is located on the other side of the foregoing.

According to such a disposable diaper for low-weight children, the portion of the diaper on the side of the fastening tape is not easily bent. Therefore, the position of the diaper on the side of the fastening tape is made forward, so that the disposable diaper can smoothly pass between the feet of the low birth weight.

In the disposable diaper for a low-weight child, the apex of the notch portion of the third bending inducing portion is raised from the other side of the three-dimensional folded portion in the longitudinal direction The starting point is located on one side.

According to the disposable diaper for a low-weight child, the third bending-inducing portion folds a part of the disposable diaper toward the non-skin side and largely folds back to form a joint portion of the three-dimensional folded portion. Therefore, it is easy to fold the disposable diaper.

A disposable disposable diaper for a low-weight child, wherein the disposable diaper is unfolded and stretched in the longitudinal direction, and the elastically stretchable portion of the elastic member for the three-dimensional folded portion is used. The length in the longitudinal direction is equal to or longer than the length in the longitudinal direction between the apexes of the notch portions of the first bending inducing portion and the third bending inducing portion.

According to such a disposable diaper for low-weight children, when the diaper is normally installed, when the diaper is placed upside down, the elastic member of the three-dimensional folded portion can be easily contracted, so that the disposable diaper can be easily Formed into a three-dimensional shape.

===Implementation form === A disposable diaper for low-weight children refers to a disposable diaper that is intended for infants under 3000 gram (especially less than 2500 gram). Hereinafter, the disposable disposable diaper for low-weight children will be described by way of an example of a disposable diaper having a fastening tape attached to a low-weight child. However, disposable diapers for low-weight children are not limited to a tape type, and may be, for example, disposable diapers in the form of a gasket without a fastening tape.

<<The structure of the disposable disposable diaper 1 for the adhesive tape type>> Fig. 1 The disposable diaper 1 for the low-weight children's adhesive tape type which is unfolded in the longitudinal direction and stretched from the skin side (hereinafter referred to as A top view of the "paper diaper". 2A is a schematic cross-sectional view of the first waistline portion 1A, and FIG. 2B is a schematic cross-sectional view of the crotch portion 1B.

The disposable diaper 1 has a longitudinal direction and a broad side direction. Moreover, the disposable diaper 1 has the 1st waist part 1A, the lower part 1B, and the 2nd waist part 1C arrange|arranged in the longitudinal direction. As shown in FIG. 2A, the direction in which the members constituting the disposable diaper 1 are laminated is referred to as a thickness direction. In the thickness direction, the side that contacts the wearer is referred to as the skin side, and the opposite side is referred to as the non-skin side.

The disposable diaper 1 has an absorbent core 2 that absorbs excretion liquid, a liquid-permeable top sheet 3 that is disposed on the skin side of the absorbent core 2, and a liquid that is disposed on the non-skin side of the absorbent core 2 The translucent leakage preventing sheet 4; the outer sheet 5 which is the outer shape of the disposable diaper 1 and the outer side of the width direction of the top sheet 3 are wider than the leakage preventing sheet 4; A pair of side sheets 6 extending outward in the side direction.

In the case of the absorbent core 2, a liquid-absorbent fiber containing a superabsorbent polymer (so-called SAP) in a pulp fiber or the like is formed into a predetermined shape, and the SAP layer is adhered to the SAP of the hydrophilic sheet. The sheet, the air-absorbent fiber formed into a sheet-like air-laid sheet by a gas flow molding method, or the like. The absorbent core 2 can also be covered with a core-coated sheet 2A such as a liquid-permeable tissue or a nonwoven fabric.

A pair of three-dimensional folded portions 8 and a pair of leg-surrounding elastic members 10 that expand and contract in the longitudinal direction along the leg circumference of the wearer are disposed on both sides in the width direction of the disposable diaper 1. The three-dimensional folded portion 8 is a three-dimensional folded portion elastic member 9 that expands and contracts in the longitudinal direction, and a part of the side sheet 6 is raised toward the skin side. The excrement is blocked by the three-dimensional folded portion 8.

The leg-hole elastic member 10 is disposed in the widthwise direction of the rising edge of the three-dimensional folded portion 8 in the wider side direction (the widthwise inner end 42a of the second joining portion 42 shown in FIG. 5 to be described later). Outside. By the leg-surrounding elastic member 10, the disposable diaper 1 is attached to the wearer's leg circumference, and the leakage of the excrement is suppressed.

As the three-dimensional hemming portion elastic member 9 and the leg-surrounding elastic member 10, a filament-shaped elastic member such as a thread rubber can be exemplified. However, the present invention is not limited thereto, and may be a sheet-like elastic member such as a stretchable film.

Further, each of the three-dimensional folded portion elastic member 9 and the leg-surrounding elastic member 10 has an elasticized portion (effective long portion) capable of generating stretchability in the longitudinal direction. In the elastic member 9 for the three-dimensional folded portion and the leg-surrounding elastic member 10, the portion that is fixed to the sheet in a state of being elongated in the longitudinal direction becomes an elasticized portion. It is indicated only by the expansion section on the drawing surface.

Moreover, the outer shape of the disposable diaper 1 is a substantially hourglass shape. In the one side of the longitudinal direction, the first waist portion 1A has a pair of first side flaps 31 that extend outward from the crotch portion 1B in the width direction and are fixed to the fastening tape 7 . On the other side in the longitudinal direction, the second waist portion 1C has a pair of second side flaps 32 that extend outward from both sides of the crotch portion 1B in the width direction. The first side flap 31 and the second side flap 32 are formed by the side sheet 6 and the exterior sheet 5.

The fastening tape 7 has a tape substrate 7A and a hook material 7B. The tape substrate 7A is formed in a substantially rectangular shape having a long side in the width direction. The hook material 7B is, for example, a male member of a flat fastener, and is provided on the skin side surface of the tape substrate 7A.

In the case where the disposable diaper 1 is installed, the diaper 1 in the unfolded state is folded in the substantially center of the longitudinal direction while being attached to the wearer. Next, the first side flap 31 is folded back toward the inside. Finally, the hook material 7B of the fastening tape 7 is locked to the non-skin side of the second waistline portion 1C.

Moreover, the disposable diaper 1 is used for low birth weight. Therefore, the length of the disposable diaper 1 in the longitudinal direction in which the disposable diaper 1 is extended in the longitudinal direction may be set to about 175 mm to 330 mm. Specifically, the product length for the weight less than 2500g is set at 310mm, the product length for the weight less than 1500g is set at 270mm, and the product for the weight less than 1000g is set at about 230mm.

Further, the size of the waist of the disposable diaper 1 may be set to about 160 to 295 mm. Specifically, the size of the waist for the weight less than 2500 g is set to 273.5 mm, and the size of the waist for the weight less than 1500 g is set to about 220 mm. The size of the waist is such that the front end in the width direction of one of the fastening tapes 7 is aligned with the end of the root side of the hook material 7B of the other fastening tape 7 in the width direction, and the product is directed toward the wide side. The direction is elongated to the size of the state without wrinkles.

<<Paper diaper 1 back and forth installation>> FIG. 3A to FIG. 3C are explanatory views of the installation state of the disposable diaper 1. Among the low-weight children, especially the low-weight children born under 2,500 grams, there is the idea of spending hope in the posture of being in the womb. The posture in the tire is a state in which the back is wound into a C shape as shown in FIG. 3A, and the foot is opened to the M position while the two knees are pulled to a position close to the abdomen as shown in FIG. 3C. Hereinafter, such a posture is also referred to as a "curved kneeling posture".

In addition, there is a desire to reduce the touch of the body of the low-weight child.

Therefore, when the disposable diaper 1 is replaced, there is a case where the low-weight child is not allowed to lie on the back, but the diaper 1 is passed between the feet of the low-weight child who is squatting, and the diaper is placed on the low-weight child in the squatting state. 1 replacement situation. Therefore, as shown in FIG. 3A, not only the first waistband portion 1A provided with the fastening tape 7 but also the back side is provided, as shown in FIG. 3B, the first waistline portion 1A is covered with the belly. The side-by-side installation is performed in a side-by-side manner. When the front and back are installed upside down, it is not necessary to put your hand into the abdomen of the low-weight child who is squatting, and the fastening tape 7 is locked and removed.

Moreover, the paper diaper 1 may be provided with a slit line 11 for cutting a part of the first waistline portion 1A to which the fastening tape 7 is fixed. In this way, it is easy to remove the disposable diaper 1 from a low birth weight.

<<Shape of Absorbent Core 2>> FIGS. 4 and 5 are schematic plan views of the disposable diaper 1. Fig. 6 is a plan view of the absorbent core 2. Fig. 7 is a schematic plan view of a disposable diaper 1 according to a modification. 8A to 8C are explanatory views of a method of attaching the disposable diaper 1 to a low-weight child having a smaller installation target. In the following description, the one side on which the fastening tape 7 is placed is referred to as the "strip side" in the longitudinal direction, and the other side on the opposite side may be referred to as the "non-strip side". In addition, the state in which the disposable diaper 1 is extended in the longitudinal direction is a state in which the disposable diaper 1 is extended in the longitudinal direction until the wrinkles generated by the disposable diaper 1 are substantially invisible. In detail, the dimensions of the members constituting the disposable diaper 1 (for example, the side sheets 6 and the like) are elongated in the longitudinal direction to the size of the longitudinal direction of the member alone or close to this size, and the disposable diaper 1 is elongated. status.

As shown in FIG. 3C, the crotch portion of the low-weight child of the pull-up foot is offset to the one side in the longitudinal direction in the central portion of the longitudinal direction of the disposable diaper 1. Specifically, the low-weight body of the diaper 1 may be raised at a position (F1) from which the foot is lifted from the buttocks of the floor. Further, the position of the base of the ventral side of the leg (F2) may be the starting point of the bending of the disposable diaper 1. In this way, the portion (F1 to F2) of the disposable diaper 1 which is in contact with the crotch portion of the low-weight child becomes the bottom, and the disposable diaper 1 is easily deformed in three dimensions.

In particular, when the disposable diaper 1 has the elastic member 9 for the three-dimensional folded portion and the leg-elastic member 10, the disposable diaper 1 is formed into a three-dimensional shape by rounding the inside of the skin side by the contraction of the elastic members 9 and 10. Therefore, the disposable diaper 1 is attached to the posture of a low-weight child who rolls the back into a C shape.

Therefore, as shown in FIG. 4, the absorptive core 2 of the present embodiment has the first bending inducing portion 21a and the second bending which are induced to be bent in the widthwise direction at different positions in the longitudinal direction. The inducing portion 21b and the third bending inducing portion 21c. The first bending inducing portion 21a, the second bending inducing portion 21b, and the third bending inducing portion 21c are provided in this order from the strip side in the longitudinal direction.

Therefore, when the disposable diaper 1 is normally installed, the portion of the absorbent core 2 between the second bending inducing portion 21b and the third bending inducing portion 21c is bonded to the low-weight child pulling the foot toward the non-strip side. The daytime. In other words, the absorbent core 2 is bent in the second bending inducing portion 21b and the third bending inducing portion 21c, and the disposable diaper 1 is three-dimensionally deformed along the low-weight child pulling the foot toward the non-strip side.

On the other hand, when the disposable diaper 1 is placed upside down, the portion of the absorbent core 2 between the first bending inducing portion 21a and the second bending inducing portion 21b is bonded to the lower side of the strip side. The middle of the weight of the child. In other words, the absorbent core 2 is bent in the first bending inducing portion 21a and the second bending inducing portion 21b, and the disposable diaper 1 is three-dimensionally deformed along the low-weight child pulling the foot toward the strip side.

As described above, the disposable diaper 1 of the present embodiment can be attached to a low-weight child who is in a posture when it is placed in the tire when the diaper is normally attached. Therefore, leakage of the excretory liquid can be suppressed. In addition, low birth weight children are less prone to edema. Therefore, according to the disposable diaper 1 of this embodiment in which the posture of the low-weight child is attached, there is no unnecessary tightening, and the occurrence of further edema can be prevented.

In the absorbent core 2 of the present embodiment, a pair of notched portions 22a to 22c which are convex toward the inner side in the widthwise direction are provided as the first to third bends on both sides in the width direction of the absorbent core 2 Induction sections 21a to 21c. The pair of notch portions 22a to 22c are formed in a symmetrical shape with respect to a center line (not shown) that aligns the absorptive core 2 in the width direction, and are arranged symmetrically. Further, the cutout portions 22a to 22c are not limited to the mountain shape shown in FIG. 5, and may be, for example, a rectangular shape or a tangent line.

In the notch portions 22a to 22c, the basis weight (g/cm ² ) of the member (liquid absorbent fiber or the like) constituting the absorbent core 2 is lower than that in the surrounding region, or the member constituting the absorbent core 2 does not exist. Therefore, in the portion where the absorbent core 2 having the pair of notch portions 22a to 22c is provided, the absorptive core 2 is easily bent in the widthwise direction by the rigidity of the surrounding region.

However, the first to third bending inducing portions 21a to 21c are not limited to the notched portions 22a to 22c. For example, in the manufacturing process, the absorbent core 2 may be subjected to bending processing along the widthwise direction, or the basis weight of the member constituting the absorbent core 2 may be decreased in the widthwise direction or in the width of the absorbent core 2. The first to third bending inducing portions 21a to 21c are formed so as to form a slit along the widthwise direction in the center portion in the side direction.

In addition, the arrangement of the first to third bending inducing portions 21a to 21c may be as follows. As shown in FIG. 4, the second bending inducing portion 21b may be located at the center CL1 of the disposable diaper 1 in the longitudinal direction. Further, the apex of the notch portion 22b of the second bending inducing portion 21b is not limited to the center CL1 of the disposable diaper 1, and any portion of the notch portion 22b may be located therein.

In addition, the first bending inducing portion 21a and the third bending inducing portion 21c may be arranged symmetrically with respect to the center CL1 of the disposable diaper 1 in the longitudinal direction. In other words, the length from the center CL1 of the disposable diaper 1 to the apex of the notch portion 22a of the first bending inducing portion 21a is equal to the length of the apex of the notch portion 22c of the center portion CL1 of the disposable diaper 1 to the third bending inducing portion 21c. Just fine.

In this way, even when the disposable diaper 1 is normally installed, there is no difference when the front and back are installed upside down, and the disposable diaper 1 is attached to a low-weight child.

Further, the first bending inducing portion 21a can be positioned at the center CL1 of the disposable diaper 1 in the longitudinal direction and at the center CL2 of the end 1a of one side of the disposable diaper 1, and the third bending inducing portion 21c can be positioned on the long side. The center CL1 of the disposable diaper 1 and the center CL3 of the other end 1b of the disposable diaper 1. In addition, the apexes of the notch portions 22a and 22c of the first and third bending inducing portions 21a and 21c are not limited to the respective positions CL2 and CL3 of the disposable diaper 1, and any portion of the notched portions 22a and 22c may be located therein.

In other words, the first bending inducing portion 21a and the third bending inducing portion 21c may be located at a length of 1/4 of the length of the product away from the disposable diaper 1 from the center CL1 of the disposable diaper 1. In this way, the absorbent core 2 can be bent at a position corresponding to the root portion of the ventral side of the foot near the abdomen (F2 of FIG. 3C). Therefore, the disposable diaper 1 is three-dimensionally deformed and is attached to a low-weight child who takes a posture in the tire.

Further, the absorbent core 2 of the present embodiment has a narrow portion 2A having a narrower width than the end portion in the central portion in the longitudinal direction as shown in Fig. 6 . Further, the first bending inducing portion 21a, the second bending inducing portion 21b, and the third bending inducing portion 21c are located in the narrowed portion 2A.

Therefore, it is easy to pull up the feet of low birth weight children. In addition, the width of the absorptive core 2 between the first and second bending inducing portions 21a and 21b is narrowed, and the width of the absorptive core 2 between the second and third bending inducing portions 21b and 21c is narrowed. That is, the width of the absorbent core 2 abutting between the crotch portions of the low birth weight child is narrowed. Therefore, low birth weight children are easy to move their feet. Further, when the ankle of the low-weight child is lifted, it is possible to suppress the skin of the low-weight child from being pressed by the absorbent core 2 having high rigidity.

In detail, the second bending inducing portion 21b may be located at the center of the narrow portion 2A in the longitudinal direction. In addition, the center CL4 of the narrow portion 2A in the longitudinal direction of the first bending inducing portion 21a and the center CL5 of the end 2A1 on one side of the narrow portion 2A may be located on one side. On the other hand, the center CL4 of the narrow portion 2A in the longitudinal direction of the third bending inducing portion 21c and the center CL6 of the other end 2A2 may be located on the other side.

In other words, the first bending inducing portion 21a and the third bending inducing portion 21c may be longer than or equal to 1/4 of the length L2 of the narrow portion 2A from the center CL4 of the narrow portion 2A. In this way, the absorbent core 2 can be bent at a position corresponding to the root portion of the ventral side of the foot near the abdomen (F2 of FIG. 3C). Therefore, the disposable diaper 1 is three-dimensionally deformed and is attached to a low-weight child who takes a posture in the tire.

In addition, the first bending inducing portion 21a and the third bending inducing portion 21c may be located at a portion where the width of the absorbent core 2 is narrowed in the narrowed portion 2A, that is, in the longitudinal direction of the narrowed portion 2A. Just at the end. In this way, the disposable diaper 1 is three-dimensionally deformed and is attached to a low-weight child who pulls the foot to the left and right sides of the knee.

At this time, a part of each of the notch portions 22a and 22c of the first bending inducing portion 21a and the third bending inducing portion 21c is formed by the outline 2A3 of the narrow portion 2A that is inclined toward the inner side in the width direction. Therefore, the inclination of the outline 2A3 becomes steep. Therefore, in the wider range of the long side direction, the width of the absorbent core 2 can be narrowed, and the feet of the low birth weight can be easily pulled up.

In addition, the length L3 from the center CL4 of the absorbent core 2 in the longitudinal direction to the end 2A1 and the other end 2A2 of the narrowed portion 2A is 22% of the length L1 of the absorbent core 2 in the longitudinal direction. The above length is sufficient (L3≧L1×0.22).

In this way, the narrowed portion 2A extends long on both outer sides in the longitudinal direction, and even when the disposable diaper 1 is normally attached, it is easy to pull up the feet of the low-weight child when the front and back are installed upside down. In other words, the narrowed portion 2A can be brought into contact with the intercondylar portion of the low-weight child who pulls the foot to the left and right sides of the abdomen, and the absorption of the skin of the low-weight child can be suppressed by the absorbent core 2.

Moreover, as shown in FIG. 6, the both ends 2a of the narrow part 2A in the width direction may have the linear part 2A4 along the longitudinal direction. In this case, for example, when the side end of the narrow portion is formed into a convex arc shape on the inner side in the width direction, the width of the absorbent core 2 can be narrowed over a wider range in the longitudinal direction. Therefore, the narrowed portion 2A having a narrower width is located at the crotch portion of the low-weight child who pulls the foot, and the skin of the low-weight child is suppressed by the absorbent core 2.

Further, the straight portion 2A4 may be provided on both sides in the longitudinal direction with respect to the center CL4 in the longitudinal direction of the absorbent core 2. At this time, even when the disposable diaper 1 is normally installed, when the front and back are installed upside down, it is easy to pull up the foot, and it is possible to suppress the absorption of the skin of the low-weight child by the absorbent core 2.

Further, the width W1 of the absorptive core 2 of the second bending inducing portion 21b (that is, the width between the apexes of the pair of notched portions 22b) and the width W2 of the absorptive core 2 of the straight portion 2A4 are set to 15 mm or more. It can be around 45mm or so. In this way, both the absorption capacity of the absorbent core 2 and the absorption of the skin of the low-weight baby by the absorbent core 2 can be suppressed.

Further, by the growth of the narrowed portion 2A, the indication portion 12 for changing the color due to urination can be provided in the narrowed portion 2A as shown in Fig. 1 . In the narrow portion 2A, the instruction portion 12 is easily reacted. Therefore, even if the amount of urine of the low-weight child is small, the instruction portion 12 can be reacted, and the replacement time of the disposable diaper 1 can be easily known.

However, when the disposable diaper 1 is installed upside down (see FIG. 3B), if the foot is pulled up beyond the locking position p1 of the fastening tape 7, the first side flap 31 of the fixing fastening tape 7 is warped, and the fastening tape 7 is fastened. Easy to fall off. Therefore, as shown in FIG. 4, the tape-side end 2A1 of the narrowed portion 2A may be positioned lower than the lower end 7a (non-strip side end 7a) of the fastening tape 7 at the lower side (non-strip side). In this way, the absorption capacity of the absorbent core 2 can be ensured without the unnecessary growth of the narrowed portion 2A.

For the same reason, the apex 22a1 of the notch portion 22a of the first bending inducing portion 21a may be positioned below the lower end 7a of the fastening tape 7 (not on the sheet side). In this way, the first bending inducing portion 21a is not positioned at a position where the leg cannot be pulled up, and the first bending inducing portion 21a is positioned at the root portion corresponding to the abdominal side of the leg to be pulled up (F2 of FIG. 3C). .

Further, the absorbent core 2 may not have the narrow portion 2A. For example, the first to third bending inducing portions 21a to 21c may be provided in the rectangular absorbent core 2 in plan view.

As described above, the absorbent core 2 of the present embodiment has a symmetrical shape with respect to the center CL4 in the longitudinal direction. Therefore, the bending inducing portions (21a, 21c) or the straight portions 2A4 in which the absorbent core 2 is provided are provided on both sides in the longitudinal direction with respect to the center CL4 in the longitudinal direction of the absorbent core 2. Therefore, even when the disposable diaper 1 is installed upside down, the disposable diaper 1 does not poorly fit a low-weight child.

Further, the front and back installation is performed when the disposable diaper 1 is replaced by the low-weight child who is not moving. Therefore, when the front and back are mounted upside down, the side of the first waistline portion 1A to which the fastening tape 7 is fixed is directed forward, and the disposable diaper 1 passes between the feet of the low-weight child. In addition, the elastic member 9 for the three-dimensional hemming portion located on the inner side in the widthwise direction has a greater influence on the deformation of the paper diaper 1 than the leg elastic member 10.

Here, as shown in FIG. 4, the center 9CL of the expansion-contraction part of the elastic member 9 of the three-dimensional hemming part may be located on the non-strip side rather than the center CL1 of the disposable diaper 1 in the longitudinal direction. As a result, the first waistline portion 1A on the tape side is less likely to be bent than the second waistline portion 1C on the non-strip side, and it is easy to maintain a flat shape. Therefore, when the front and back are installed upside down, the first waistline portion 1A can be smoothly passed between the feet of the low-weight children, and the disposable diaper 1 can be easily installed.

Further, in the narrowed portion 2A, since the length of the sheet portion of the leg circumference of the side end of the absorbent core 2 in the wide side direction to the side end of the disposable diaper 1 is long, the rising height of the three-dimensional folded portion 8 can be ensured. Therefore, the length of the narrowed portion 2A in the longitudinal direction may be longer than the length of the elastically stretchable portion of the elastic member 9 for the three-dimensional folded portion in a state in which the disposable diaper 1 is developed in the longitudinal direction.

In this way, the narrow portion 2A can be disposed over the long range of the elastic member 9 for the three-dimensional folded portion, and the three-dimensional folded portion 8 can be surely raised. Therefore, the excretion liquid can be blocked at the three-dimensional folded portion 8.

Further, in the disposable diaper 1 of the modified example shown in FIG. 7, the length of the elastically stretchable portion of the elastic member 9 for the three-dimensional folded portion may be long in the longitudinal direction and in the state in which the disposable diaper 1 is stretched in the longitudinal direction. L4 is equal to or longer than the length L5 (L4≧L5) in the longitudinal direction between the apexes (22a1 to 22c1) of the respective notch portions 22a and 22c of the first bending inducing portion 21a and the third bending inducing portion 21c.

In this way, the elastic member 9 for the three-dimensional hemming portion is disposed over the long range of the first bending inducing portion 21a to the third bending inducing portion 21c. Therefore, even when the second and third bending inducing portions 21b and 21c are placed upside down between the second and third bending inducing portions 21b and 21c, the first and second bending inducing portions 21a and 21b are used as the bottom. The long three-dimensional folded portion is contracted by the elastic member 9, and the disposable diaper 1 can be rounded into a three-dimensional shape. Therefore, the disposable diaper 1 is more in contact with the posture of the low-weight child who rolls the back into a C shape.

However, the case where the disposable diaper 1 is used in a low-weight child who is smaller than the object size of the disposable diaper 1 is also used. At this time, as shown in FIG. 8A, the third waist-inducing portion 21c is folded back toward the non-skin side in the folded position FL1 to be in the state of FIG. 8B. When the disposable diaper 1 of the state shown in FIG. 8B is attached to the wearer, the first bending inducing portion 21a and the second bending inducing portion 21b are folded in half at the substantially center of the second bending inducing portion 21b. Then, as shown in FIG. 8C, the first side flap 31 is folded back toward the inside, and the fastening tape 7 is locked to the skin side surface of the second waistline portion 1C.

At this time, the absorbent core 2 is bent to the bottom in the first bending inducing portion 21a and the second bending inducing portion 21b, and is bonded to the crotch portion of the low-weight child, and the disposable diaper 1 is three-dimensionally deformed. In addition, since the disposable diaper 1 has three bending inducing portions 21a to 21c, it is easy to fold a part of the disposable diaper 1 toward the non-skin side in the third bending inducing portion 21c, even at a lower body weight than the target size. It is also easy to use. It is assumed that such a method of use, the disposable diaper 1 has the following features.

As shown in Fig. 5, in the longitudinal direction, the apex 22c1 (folded position FL1) of the notch portion 22c of the third bending inducing portion 21c is set to the length L6 of the non-strip side end 2c of the absorbent core 2 The length L7 in the longitudinal direction between the apexes (22b1 to 22c1) of the notch portions 22b and 22c of the second bending inducing portion 21b and the third bending inducing portion 21c may be shorter (L6 < L7).

In this way, the apex of the absorptive portion 2b of the second bending inducing portion 21b and the apex portion 22c1 (the folded position FL1) of the notch portion 22c of the third bending inducing portion 21c are folded toward the non-skin side. 22b1 is not repeated in the thickness direction. Therefore, it is possible to prevent the absorptive core 2 that is folded back toward the non-skin side from being bent by the second bending inducing portion 21b. Therefore, the disposable diaper 1 is three-dimensionally deformed to fit a low-weight child.

In addition, the end (root) 32a of the second side flap 32 of the longitudinal direction in the longitudinal direction is positioned closer to the non-strip side than the vertex 22c1 (folded position FL1) of the notch portion 22c of the third bending inducing portion 21c (longitudinal direction) The outer side) can be.

In this way, all of the second side flaps 32 are folded back toward the non-skin side. Therefore, it is easy to fold the second waistline portion 1C toward the non-skin side at the folded position FL1. Further, a part of the second side flap 32 overlaps with the remaining portion which is folded back toward the non-skin side, and it is possible to prevent a portion having high rigidity from occurring. Therefore, it is possible to prevent the skin of the low-weight child from being irritated by the portion where the rigidity of the second side flap 32 is high.

In addition, the end portion 32a of the second side flap 32 is the portion of the outer edge of the disposable diaper 1 which is inclined toward the inner side in the widthwise direction toward the side of the strip in the longitudinal direction, and is inclined in the longitudinal direction or in the opposite direction. The boundary point of the part. Moreover, the end 32a of the second side flap 32 on the strip side can also be said to be the point where the width of the disposable diaper 1 becomes the narrowest.

Further, the length L6 in the longitudinal direction of the end portion 2c of the non-strip side of the absorbent core 2 in the longitudinal direction from the apex 22c1 (folded position FL) of the notch portion 22c of the third bending inducing portion 21c is in the fastening tape The width of 7 (the length in the longitudinal direction of the disposable diaper 1) may be L8 or more (L6≧L8).

In this way, the width L6 of the absorbent core 2 folded back toward the non-skin side is equal to or larger than the width L8 of the fastening tape 7. Therefore, as shown in FIG. 8C, the fastening tape 7 is easily locked to a region of high rigidity on the absorbent core 2 that is folded back toward the non-skin side. Therefore, the locking of the fastening tape 7 is stabilized and the fastening tape 7 is less likely to fall off than when the fastening tape 7 is locked, for example, only in the region where the rigidity of the sheet is low.

In the state in which the disposable diaper 1 is stretched in the longitudinal direction and extended (FIG. 5), the apexes 22a1 and 22b1 of the respective notch portions 22a and 22b of the first bending inducing portion 21a and the second bending inducing portion 21b are provided. The center CL7 (folded position FL2) in the longitudinal direction is the length L9 (first length) of the non-strip side end 7a of the fastening tape 7 in the longitudinal direction. In addition, the disposable diaper 1 has a length L10 (second length) from the apex 22c1 of the notch portion 22c of the third bending inducing portion 21c to the non-strip side end 1b of the disposable diaper 1 in the longitudinal direction.

In the longitudinal direction, the position p2 from the apex 22c1 of the notch portion 22c of the third bending inducing portion 21c toward the strip side from the length L10 becomes the position of the end 1b of the disposable diaper 1 which is folded back toward the non-skin side (see FIG. 8C). . Further, the position p3 from the center CL7 (folded position FL2) of the first bending inducing portion 21a and the second bending inducing portion 21b to the non-strip side away from the length L9 is approximately the locking of the end 7a of the fastening tape 7 Position p3 (refer to Fig. 8C for reference).

Here, in a state in which the disposable diaper 1 is stretched in the longitudinal direction and extended (FIG. 5), the position p2 of the end 1b of the disposable diaper 1 which is folded back toward the non-skin side is located more than the locking position p3 of the fastening tape 7 The strip side can be used. In other words, in the mounted state of the disposable diaper 1 (FIG. 8C), the position p2 of the end 1b of the disposable diaper 1 which is folded back toward the non-skin side may be located below the locking position p3 of the fastening tape 7.

As a result, the end 1b of the cross-diaper 1 is not easy to lock the adhesive tape 7. In other words, the fastening tape 7 is less likely to be caught at the boundary between the portion of the disposable diaper 1 that is folded back toward the non-skin side and the portion of the disposable diaper 1 that has not been folded back. Therefore, the locking of the fastening tape 7 is stabilized, and the fastening tape 7 is not easily peeled off.

Further, as shown in the right half of the disposable diaper 1 of Fig. 5, the three-dimensional folded portion 8 is formed by joining the side sheets 6 to the joint portion 40 of the top sheet 3 by an adhesive or the like. The joint portion 40 has a first joint portion 41 disposed at both end portions in the longitudinal direction of the disposable diaper 1 and an end portion 1a extending from the longitudinal direction of the disposable diaper 1 to the other end 1b, and is closer to the first joint portion. 41 is further disposed on the outer side of the second joint portion 42 in the widthwise direction.

The position p4 in the longitudinal direction of the tape-side end 41a of the first joining portion 41 of the end portion of the disposable diaper 1 on the non-strip side is the starting point of the non-strip side of the three-folded portion 8. The bonding portion 40 (41, 42) is cured by an adhesive or the like, and is more rigid than the surrounding region. Here, the apex 22c1 of the notch portion 22c of the third bending inducing portion 21c can be located on the strip side more than the rising starting point (p4) of the non-strip side of the three-dimensional folded portion 8.

In this way, all of the first joint portions 41 on the non-strip side are folded back toward the non-skin side. Therefore, it is easy to fold back the disposable diaper 1 compared with the case where the disposable diaper 1 is folded in the middle of the 1st junction part 41 with high rigidity. Moreover, the skin of the low-weight child who is smaller than the object size of the disposable diaper 1 is weaker. Therefore, the first joint portion 41 having high rigidity is all folded back, and the contact area between the joint portion 40 having high rigidity and the low birth weight is reduced, and the burden on the skin of the low birth weight can be reduced.

Although the embodiments of the present invention have been described above, the above-described embodiments are intended to facilitate the understanding of the present invention, and are not intended to limit the present author. Moreover, this creation can be changed and improved without departing from its purpose, and it goes without saying that the creation of course also contains its equivalent.

For example, it is not limited to a tape type paper diaper, and even if it is a paper diaper in the form of a gasket, three bending induction portions may be provided in the absorbent core. At this time, the caregiver or the like can install the disposable diaper without confirming whether or not any of the sides in the longitudinal direction is disposed by the notch portion. That is, it is not necessary to care about the longitudinal direction of the diaper.

1‧‧‧paper diapers (disposable disposable diapers for low birth weight children)

1A‧‧‧1st waist circumference

1B‧‧‧胯 lower part

1C‧‧‧2nd waist circumference

1a‧‧‧One end of the long side

1b‧‧‧The other end of the long side

2‧‧‧Absorbent core

2A‧‧‧Sarrow

2A1‧‧‧ non-strip side

21a‧‧‧1st bending induction department

21b‧‧‧2nd bend induction department

Vertex 22a1‧‧‧

21c‧‧‧3rd bending induction department

22a~22c‧‧‧Gap section

3‧‧‧Top sheet

4‧‧‧ leakproof sheets

5‧‧‧Outer sheets

6‧‧‧ side flakes

7‧‧‧Buckle belt

7a‧‧‧Bottom

8‧‧‧Three-dimensional folding

9‧‧‧Elastic members for three-dimensional hemming

10‧‧‧ leg elastic members

11‧‧‧cut line

12‧‧‧Instruction Department

31‧‧‧1st wing

32‧‧‧2nd wing

40‧‧‧ joints

41‧‧‧1st joint

42‧‧‧2nd joint

CL1‧‧‧ Central

CL2‧‧‧ Central

CL3‧‧‧ Central

Central of 9CL‧‧‧Flexing Department

Fig. 1 is a plan view of the disposable diaper 1 which is stretched and extended in the longitudinal direction as viewed from the skin side. 2A is a schematic cross-sectional view of a first waistline portion 1A, and FIG. 2B is a schematic cross-sectional view of a crotch portion 1B. 3A to 3C are explanatory views of an installation state of the disposable diaper 1. FIG. 4 is a schematic plan view of the disposable diaper 1. FIG. 5 is a schematic plan view of the disposable diaper 1. FIG. 6 is a plan view of the absorbent core 2. Fig. 7 is a schematic plan view of a disposable diaper 1 according to a modification. 8A to 8C are explanatory views of a method of attaching the disposable diaper 1 to a low-weight child having a smaller installation target.

Claims (15)

A disposable diaper for low-weight children, which is a disposable diaper having a long-side direction and a broad-side direction and having an absorbent core for low-weight children, characterized in that: the aforementioned absorption The core has a first bending inducing portion, a second bending inducing portion, and a third bending inducing portion that are bent at different positions in the longitudinal direction at the different width directions. The disposable diaper for low-weight children according to the first aspect of the invention, wherein the second bending-inducing portion is in the center of the disposable diaper in the longitudinal direction, the first The bending inducing portion and the third bending inducing portion are disposed symmetrically with respect to the center of the disposable disposable diaper in the longitudinal direction. The disposable diaper for low-weight children according to the first or second aspect of the invention, wherein the second bending-inducing portion is in the center of the disposable diaper in the longitudinal direction The first bending-inducing portion is in the center of the center of the disposable diaper and the one end of the disposable diaper in the longitudinal direction. The third bending inducing portion is located at the center of the center and the other end of the disposable diaper in the longitudinal direction. The disposable diaper for a low-weight child according to the first aspect of the invention, wherein the absorbent core has a narrow portion having a narrower width than the end portion in a central portion in the longitudinal direction. The bending inducing portion, the second bending inducing portion, and the third bending inducing portion are located in the narrow portion. The disposable diaper for a low-weight child according to the fourth aspect of the invention, wherein the second bending induction portion is in the center portion of the narrow portion in the longitudinal direction, and the first bending induction The portion is located on the one side of the center of the narrow portion in the longitudinal direction and the center of the one end, and the third bending inducing portion is more than the center of the narrow portion and the center of the other end in the longitudinal direction. Located on the other side of the aforementioned side. The disposable diaper for a low-weight child according to the fifth aspect of the invention, wherein at least one of the first bending inducing portion and the third bending inducing portion is located in the narrow portion The width of the absorbent core is narrowed at the beginning. The disposable diaper for low-weight children according to the first aspect of the invention, wherein the absorbent core has a symmetrical shape in the longitudinal direction. The disposable diaper for low-weight children according to the first aspect of the invention, wherein the disposable diaper has a side in the longitudinal direction and extends toward the outer side in the widthwise direction, and is fixedly adhered. a pair of first side flaps of the pair of buckles; and a pair of second side flaps extending toward the outer sides in the widthwise direction on the other side in the longitudinal direction, sequentially from the one side in the longitudinal direction The first bending inducing portion, the second bending inducing portion, and the third bending inducing portion, the first bending inducing portion, the second bending inducing portion, and the third bending inducing portion are provided. A pair of notched portions which are convex toward the inner side in the width direction of the both side portions in the wide side direction of the absorbent core, respectively. The disposable diaper for low-weight children according to the eighth aspect of the invention, wherein the apex of the notch portion of the first bending inducing portion is higher than the affixing of the fastening tape in the longitudinal direction The end on one side is located on the other side. If the low-weight child is listed in the eighth paragraph of the patent application, it will be discarded. In the diaper, the one end of the second side flap in the longitudinal direction is located further on the other side in the longitudinal direction than the apex of the notch portion of the third bending inducing portion. The disposable diaper for low-weight children according to the eighth aspect of the invention, wherein the apex of the notch portion of the third bending inducing portion is the aforementioned absorbent core in the longitudinal direction The length in the longitudinal direction of the other end is the length of the above-mentioned fastening tape in the longitudinal direction. The disposable disposable diaper for low-weight children according to the eighth aspect of the invention, wherein the disposable disposable diaper is unfolded and stretched in the longitudinal direction, and the first The length of the end in the longitudinal direction of the apex of each of the notch portions of the bending inducing portion and the second bending inducing portion is the first length from the end of the other side of the fastening tape in the longitudinal direction. When the length from the apex of the notch portion of the third bending inducing portion to the end of the other side of the disposable diaper in the longitudinal direction is the second length, the longitudinal direction is The apex of the notch portion of the third bending inducing portion is away from the second length toward the one side, and is located farther from the center toward the other side than the first length. Said one side. The disposable diaper for low-weight children according to the eighth aspect of the invention, wherein a pair of three-dimensional folded portions are disposed on both side portions of the disposable diaper in the wide side direction. The three-dimensional folded portion can be erected toward the skin side by the elastic member for the three-dimensional folded portion that expands and contracts in the longitudinal direction, and the center of the elasticized portion of the elastic member for the three-dimensional folded portion is larger than the aforementioned side in the longitudinal direction The center of the disposable disposable diaper is located further on the other side. The disposable diaper for a low-weight child according to the third aspect of the invention, wherein the apex of the notch portion of the third bending inducing portion is larger than the three-dimensional folded portion in the longitudinal direction The rising starting point on the other side is located on one side. A disposable diaper for a low-weight child according to the above-mentioned item, wherein the disposable diaper is unfolded and stretched in the longitudinal direction, The length in the longitudinal direction of the expansion-contraction portion of the elastic member for a three-dimensional hemming portion is the first bending inducing portion and the third bending inducing portion. The length of the longitudinal direction of the notch portion is equal to or greater than the length in the longitudinal direction.