JP6393545B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article.

  Conventionally, a tape-type disposable diaper is known as an example of an absorbent article. The diaper has a vertical direction, a horizontal direction, and a thickness direction perpendicular to each other. The diaper has a first waistline portion, a crotch portion, and a second waistline portion arranged in the vertical direction. Then, by fastening each fastening tape provided at each lateral end of the second waistline portion to the target area of the first waistline portion, a waistline opening and a pair of leghole openings are formed. To be worn by the wearer.

  Moreover, the absorbent pad is known as another example of an absorbent article (patent document 1). Roughly speaking, this absorbent pad has a structure that does not have at least the second waistline fastening tape in the above-mentioned tape-type disposable diaper. And since it does not have a fastening tape, it is often used in combination with a diaper, but depending on the case, it may be used alone.

  However, according to the pad, the fastening tape does not protrude outward in the lateral direction from the second waistline part, regardless of whether it is used in combination with the diaper or alone. It is excellent in insertion property, and this makes it possible to quickly place the pad at an intended placement target position such as the inside of a disposable diaper.

Patent No. 4827704

  On the other hand, there are low-weight infants who give birth at a low weight of 3000 grams or less. Such low-weight infants may spend most of their time in a fetal-like flexion posture when they are born. This fetal-like bending posture is also called a positioning posture. In this posture, the back is rounded in a C shape as shown in FIG. 1A, and its legs are M as shown in FIG. 1B. It is in a state of being attracted so that both knees stick to the abdomen while opening the legs. Then, after taking appropriate safety measures such as laying down on a circular seat (not shown), the posture is set to the prone posture, and thus, most of the time is spent in the prone posture.

Further, depending on the low-weight infant 101, there is a case in which the concept of minimum handling that it is desirable not to touch the body from the viewpoint of not applying extra stress may be applied. And the tape type disposable diaper 1 'is used also for such a low weight child 101. FIG. However, from the viewpoint of minimum handling, the absorbent pad 1p ′ (FIG. 1C) may be used alone.
For example, as shown in FIG. 1C, the pad can be replaced simply by inserting / removing the absorbent pad 1p ′ to / from the low-weight infant 101. Therefore, the disposable diaper 1 ′ requiring the fastening operation of the fastening tape 11 ′. As compared with the above, it is effective from the viewpoint of minimum handling, and therefore, in the acute phase where minimum handling is particularly required, the absorbent pad 1p ′ is used alone.

  However, from the viewpoint of leakage prevention, the disposable diaper 1 'is more effective. Therefore, the use of the absorbent pad 1p' is limited to a very short period of several days in the acute phase. As a result, the amount of the pad 1p 'used is actually smaller than that of the disposable diaper 1'.

  On the other hand, in medical institutions such as NICU (neonatal intensive care unit), disposable diapers 1 ′ and absorbent pads 1 p ′ are separately purchased and stored for each low-weight infant 101 from the viewpoint of hygiene management and the like. In other words, for example, ten diapers 1 ′ and pads 1p ′ included in one pack are not usually used separately for a plurality of low-weight infants 101. For example, all the pads 1p ′ in one pack are used by one person. For low-weight children 101.

  However, as described above, the amount of the absorbent pad 1p ′ used is less than that of the disposable diaper 1 ′. Therefore, if one pad 1p ′ is prepared for each low-weight infant 101, the pad 1p is used. The remaining pad 1p 'is discarded without being used up. This can contribute to an increase in medical costs.

  Here, in this regard, if there is an absorbent article that can be used as both the disposable diaper 1 ′ and the absorbent pad 1p ′, the above-described problem can be solved. The provision of a new absorbent article was eagerly desired.

  This invention is made | formed in view of the above conventional problems, The objective is to provide the absorbent article which can be used as both a tape-type disposable diaper and an absorbent pad.

The main invention for achieving the above object is:
The first waistline portion, the crotch portion, and the second waistline portion are arranged side by side in the longitudinal direction, and the transverse direction of the second waistline portion is By fastening each fastening tape fixed to each end to the first waistline, a waistline opening and a pair of leg openings are formed, and a tape-type disposable diaper. An absorbent article that can be used,
A cutting line for cutting out a protruding portion that protrudes outward in the lateral direction from the second waistline portion of at least the fastening tape is formed in the developed state of the absorbent article,
By cutting off the protrusion with the cut line, it can be used as an absorbent pad without the protrusion ,
The cut line is a linear portion extending linearly along the vertical direction from a portion that becomes the waistline opening, and is located on the inner side in the vertical direction than the linear portion, and on the inner side in the vertical direction. An absorbent article comprising a curved portion having a curved shape displaced outward in the lateral direction as it proceeds .
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

  ADVANTAGE OF THE INVENTION According to this invention, the absorbent article which can be used as both a tape-type disposable diaper and an absorbent pad can be provided.

1A is a schematic side view of a low-weight infant 101 in a positioning posture, FIG. 1B is a BB arrow view in FIG. 1A, and FIG. 1C is a schematic diagram showing how the absorbent pad 1p ′ is replaced. It is a side view. It is a schematic plan view of the expansion | deployment state of the absorbent article 1 of this embodiment. 3A, FIG. 3B, and FIG. 3C are the AA sectional view, the BB sectional view, and the CC sectional view in FIG. 2, respectively. It is a schematic perspective view of the disposable diaper 1 of a mounting state. It is a schematic plan view of the absorbent article 1 in a state where the cutting lines 1c, 1c are cut and the fastening tapes 11, 11 are removed. It is a principal part enlarged view for demonstrating the cut line 1c. FIG. 7A is a schematic side view showing how the absorbent article 1 is used as the absorbent pad 1p, and FIG. 7B is a view taken along the line BB in FIG. 7A. FIG. 8A is a schematic side view of a state in which the absorbent article 1 is attached as a tape-type disposable diaper 1 to the low-weight infant 101 in the prone position, and FIG. It is a schematic side view which shows a mode that the diaper 1 is removed. It is a principal part enlarged view for demonstrating the cut line 1c. It is a principal part enlarged view for demonstrating the cut line 1c 'of a 1st modification. It is a principal part enlarged view for demonstrating the cut line 1c '' of a 2nd modification. It is a principal part enlarged view for demonstrating the cutoff line 1c '' 'of a 3rd modification. FIG. 3 is a schematic plan view of an absorbent article 1 ″ ″ ″ having a cut line 1 ca formed in a first waistline portion 1 a. It is explanatory drawing of the latching state of a fastening tape overlapping form. It is a schematic plan view of the example in which the cut line 1c11a was formed in the tape base material 11a of the fastening tape 11. FIG.

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
The first waistline portion, the crotch portion, and the second waistline portion are arranged side by side in the longitudinal direction, and the transverse direction of the second waistline portion is By fastening each fastening tape fixed to each end to the first waistline, a waistline opening and a pair of leg openings are formed, and a tape-type disposable diaper. An absorbent article that can be used,
A cutting line for cutting out a protruding portion that protrudes outward in the lateral direction from the second waistline portion of at least the fastening tape is formed in the developed state of the absorbent article,
The absorbent article can be used as an absorbent pad not having the protrusion by cutting the protrusion with the cut line.

  According to such an absorbent article, if it is used as it is, it can be used as a tape-type disposable diaper. Moreover, if the said protrusion part of a fastening tape is cut off at least by a cut line, it can be used also as an absorptive pad which does not have the said protrusion part.

Such an absorbent article,
The cut line is formed at each position on both sides in the lateral direction, corresponding to the fastening tape,
It is preferable that the cut line is formed so as to cut a portion of the second waistline portion where the fastening tape is fixed.

  According to such an absorbent article, when the absorbent article is used as a tape-type disposable diaper, the wearer does not face the wearer in the prone posture, and the wearer keeps the prone posture from the wearer. The absorbent article can be removed. Details are as follows. First, in a general mounting configuration when the article is used as a tape-type disposable diaper, the article is so that the second waistline portion to which the fastening tape is fixed is located on the back side of the wearer. Is worn by the wearer. Therefore, in the prone posture, usually, the second waistline portion is positioned above in the vertical direction. Here, the cut line is formed in the second waistline portion, and the fastening is thereby performed. The part to which the tape is fixed can be quickly cut out. Therefore, the fastening tape can be removed from the central portion in the lateral direction of the second waistline portion while maintaining the collapsed posture, and as a result, the absorbent article can be deployed while maintaining the same posture. And thereby, an absorptive article can be quickly removed from a wearing subject in a prone posture. By the way, removing the absorbent article with the face down in this way is suitable for the idea of minimum handling.

Such an absorbent article,
It is preferable that the maximum value of the horizontal interval between the cut lines is smaller than the maximum value of the horizontal dimension of the first waistline portion.

According to such an absorbent article, the maximum value of the lateral dimension of the remaining portion remaining in the second waistline portion after being cut by the cut line is made smaller than the maximum value of the lateral dimension of the first waistline portion. be able to. And if it becomes like this, it will cut off said cutting | disconnection from the maximum value of the dimension of the horizontal direction of both the 1st waistline part and the 2nd waistline part in the structure which only removed the fastening tape from the absorbent article. In the case of a configuration in which only the fastening tape is simply removed from the absorbent article by reducing the maximum value of the lateral dimension of the remainder of the second waistline portion after being cut by the line. As a result, it is possible to increase the insertion property when the second waistline portion is used as the head. Therefore, the absorbent article can be more suitably used as an absorbent pad.
Moreover, if the absorbent pad which has a magnitude relation as mentioned above is seen, it can also recognize immediately that the head side at the time of insertion is the 2nd waistline part.

Such an absorbent article,
Each of the cut lines passes from the portion serving as the waistline opening portion through the position on the inner side in the lateral direction from the portion of the second waistline portion to which the fastening tape is fixed. It is desirable to form with the route extended toward the part used as an opening part.

According to such an absorbent article, it is possible to start cutting the portion of the second waistline portion where the fastening tape is fixed from the portion that becomes the waistline opening or the portion that becomes the leghole opening. Therefore, the part to which the above-mentioned fastening tape is fixed can be quickly cut out from the absorptive article with which the wearing subject was equipped as a tape type disposable diaper, with a collapsed posture. And thereby, a fastening tape can be removed from the center part of the horizontal direction in a 2nd waistline part with a collapsed attitude | position, As a result, an absorbent article can be expand | deployed with the same attitude | position. And thereby, an absorptive article can be quickly removed from a wearing subject in a prone posture.
Further, the cut line passes through a position on the inner side in the lateral direction from the portion of the second waistline portion where the fastening tape is fixed. Therefore, it is not necessary to cut the fastening tape when cutting out the same portion. As a result, the force required for cutting the cut line can be reduced, and as a result, the external load that can be applied to the wearer at the time of cutting the cut line can be reduced.

Such an absorbent article,
The cut line is a linear portion extending linearly along the vertical direction from a portion that becomes the waistline opening, and is located on the inner side in the vertical direction than the linear portion, and on the inner side in the vertical direction. It is desirable to have a curved portion having a curved shape displaced outward in the lateral direction as it advances.

  According to such an absorbent article, the remaining portion remaining in the second waistline portion after being cut off at the cut line has a narrow width portion having a small lateral dimension at a position outside the vertical direction, and the narrow width portion. In other words, the wide portion having a larger dimension in the horizontal direction is provided on the inner side in the vertical direction than the narrow portion. Therefore, when the absorbent pad is inserted with the second waistline side as the head, since the narrow width portion having a small lateral dimension is inserted as the head, the pad can exhibit good plugability.

Such an absorbent article,
The cut line has a plurality of through holes penetrating in the thickness direction,
The plurality of through holes are preferably arranged along a direction in which the cut line should extend.

  According to such an absorbent article, since the tear line has a plurality of through holes, it can be easily and reliably cut in the direction in which the tear line extends.

Such an absorbent article,
The cut line is a first cut line portion formed to extend inward in the longitudinal direction from a portion that becomes the waistline opening,
A second cut line portion located at a position inside the vertical direction from the first cut line portion and at the same position as the fastening tape with respect to the vertical direction,
When compared with respect to the ratio of the length of the through hole per unit length in the direction in which the cut line extends, the ratio of the second cut line portion is more than the ratio of the first cut line portion. Small is desirable.

  According to such an absorbent article, the first cut line portion is easier to cut than the second cut line portion. Therefore, it is possible to effectively prevent the second cut line portion from being unexpectedly cut when each fastening tape is pulled outward in the lateral direction so that the absorbent article can be worn as a tape-type disposable diaper. However, when the cut line is cut so that the absorbent article can be used as an absorbent pad, the cut can be easily started from the portion serving as the waistline opening based on the first cut line portion.

Such an absorbent article,
The cut line has a curved portion having a curved shape that is displaced outward in the lateral direction as it proceeds inward in the vertical direction at a position inside the vertical direction with respect to the second cut line portion,
When comparing the ratio of the length of the through hole per unit length in the direction in which the cut line extends, the ratio of the second cut line portion is smaller than the ratio of the curved portion. Is desirable.

  According to such an absorbent article, the curved portion is easier to cut than the second cut line portion. Therefore, when each fastening tape is pulled outward in the lateral direction so that the absorbent article can be worn as a tape-type disposable diaper, it is effectively prevented that the second cut line portion is unexpectedly cut. However, when the cut line is cut to use the absorbent article as an absorbent pad, the curved portion can be accurately cut along the curved target shape.

Such an absorbent article,
An elastic member for contracting at least the second waistline portion and the crotch portion in the longitudinal direction is provided along the longitudinal direction, and the elasticity is applied over a predetermined range in the longitudinal direction of the second waistline portion. The members are arranged next to each other in the lateral direction of the cut line,
In at least a part of the predetermined range, it is desirable that the elastic member is located on the inner side in the lateral direction with respect to the cut line.

  According to such an absorbent article, even when the absorbent article is used as an absorbent pad, the elastic member remains in at least a part of the predetermined range in the remaining portion of the second waistline portion. ing. Therefore, with the contraction force of the elastic member, the remaining portion of the second waistline portion can rise to the skin side in the thickness direction. Therefore, when the absorbent pad is arranged so that the remaining part of the second waistline part is located on the abdomen side of the wearing subject in the prone posture and the first waistline part is located on the back side, the second waistline that stands on the skin side The remaining part of the part can contact the abdomen of the wear target person. And thereby, excrement can be reliably received with the remainder of the said 2nd waist part, making the clearance gap between a wearer's abdomen and the remainder of the 2nd waist part, and absorption as a result. The sexual pad can exhibit high leakage resistance.

Such an absorbent article,
The elastic member is preferably a leg-hole elastic member for contracting in the vertical direction the portions serving as the leg-hole openings located on both sides in the lateral direction.

  According to such an absorbent article, the elastic member is provided at each position on both sides in the lateral direction. Therefore, the remaining portion of the second waistline portion can be stably raised so that the rising amounts on both sides in the horizontal direction are substantially uniform.

Such an absorbent article,
At each position on both sides in the lateral direction, a sheet-like three-dimensional gather forming portion provided along the longitudinal direction is provided,
The three-dimensional gather forming portion has a base end portion that cannot stand up in the thickness direction and a stand up portion that can stand on the skin side in the thickness direction with the base end portion serving as a fulcrum in the lateral direction. Then, the upright part stands up on the skin side in the thickness direction by shrinking the upright part in the vertical direction based on the contraction force in the vertical direction acting on the upright part,
It is desirable that the cut line is formed at a position outside in the lateral direction with respect to the base end portion and the upright portion.

  According to such an absorbent article, the cut line is formed at a position on the outer side in the lateral direction from the base end portion and the standing portion of the three-dimensional gather forming portion. Therefore, even in the absorbent pad that is the absorbent article after being cut off by the cut line, the base end portion and the upright portion are maintained in a healthy state, that is, the base end portion and the upright portion are The excrement retained inside in the lateral direction can be appropriately dammed up. And when used as an absorptive pad by this, the said base end part and an upright part can show | play the leak-proof property substantially equivalent to the case where it uses as a tape-type disposable diaper.

Such an absorbent article,
At each end in the vertical direction in the standing part, a fixing part is formed to fix the end in a state where the end is faced down to a sheet located on the non-skin side in the thickness direction,
It is desirable that the cut line is formed at a position outside in the lateral direction with respect to the fixed portion.

  According to such an absorbent article, the said fixing | fixed part can be left in the absorbent pad which is an absorbent article after cutting off by the cut line. Therefore, when the contraction force acting on the upright portion is input to the fixed portion, the absorbent pad can be curved so that the non-skin side in the thickness direction is the inner peripheral side, thereby wearing the absorbent pad. It becomes possible to adhere to the subject's curved body quickly along the body. And this contributes to the improvement of the leak-proof property of an absorptive pad.

Such an absorbent article,
It is desirable that the correspondence between the abdomen and the back of the person to be worn, the first waistline part, and the second waistline part is opposite to each other between the tape-type disposable diaper and the absorbent pad.

  According to such an absorptive article, the above-mentioned correspondence relation is in the reverse relation to each other between the tape-type disposable diaper and the absorbent pad. Therefore, the worker who wears the article on the wear target person is conscious of one of the vertical direction and the other, so that it is difficult to make a mistake in the vertical direction.

Such an absorbent article,
It is desirable to have another cut line for cutting the lateral end of the first waistline portion.

  According to such an absorbent article, the lateral dimension of the remaining portion remaining in the center in the lateral direction of the first waistline portion after being cut by the cut line is smaller than the lateral dimension of the first waistline portion before cutting. . Therefore, if the absorbent article is inserted with the remaining portion of the first waistline portion after cutting as the head, it is possible to improve the insertion property.

=== This Embodiment ===
FIG. 2 is a schematic plan view of the developed state of the absorbent article 1 of the present embodiment. 3A, FIG. 3B, and FIG. 3C are the AA sectional view, the BB sectional view, and the CC sectional view in FIG. 2, respectively. Furthermore, FIG. 4 is a schematic perspective view of the absorbent article 1 in a worn state as the tape disposable diaper 1.

  This absorbent article 1 is a tape-type disposable diaper 1 that is worn on a wearing subject 101 using a fastening tape 11, and is particularly suitable for a low-weight infant 101 having a weight of 3000 grams or less. Hereinafter, the wear target person will be described as the low-weight infant 101, but the present invention is not limited to this, and the wear target person may be an infant or an infant or an adult.

2, the absorbent article 1 has a vertical direction, a horizontal direction, and a thickness direction as three directions orthogonal to each other. Here, in the longitudinal direction, the first waistline portion 1a, the crotch portion 1m, and the second waistline portion 1b are arranged in this order. When the article 1 is used as a tape-type disposable diaper 1 as shown in FIG. 4, generally, the first waistline portion 1a covers the abdomen of the low-weight child 101, and the crotch portion 1m The second waistline portion 1 b covers the back side of the child 101. However, depending on the case, the absorbent article 1 may be attached to the low-weight infant 101 with the longitudinal direction opposite to that described above. That is, the absorbent article 1 may be mounted so that the first waistline portion 1a covers the back side of the low-weight child 101 and the second waistline portion 1b covers the abdomen side.

  2, the first waistline portion 1a and the second waistline portion 1b protrude from the crotch portion 1m on both sides in the lateral direction, whereby the absorption seen from the thickness direction is achieved. The outer shape of the product 1 has a substantially hourglass shape in plan view. In other words, the absorbent article 1 includes an absorbent body 3 that absorbs excretory fluid, and a flexible and thin sheet-like portion that protrudes outward in the horizontal direction and the vertical direction from the absorbent body 3. The outer shape of the sheet-like portion has a substantially hourglass shape in plan view.

  Below, each part 1sf which protruded in the both sides of the horizontal direction rather than the absorber 3 among this sheet-like part is called "side flap 1sf." Further, the side flap 1sf extends over the three parts of the first waistline part 1a, the crotch part 1m, and the second waistline part 1b, and hereinafter, the side flap 1sf is located on the first waistline part 1a. The flap 1asf is also referred to as “first side flap 1asf”, the side flap 1msf located at the crotch 1m is also referred to as “crotch side flap 1msf”, and the side flap 1bsf located at the second waistline 1b. Is also referred to as “second side flap 1bsf”. Each second side flap 1bsf, 1bsf corresponds to “each end portion in the lateral direction” according to the claims. Hereinafter, one side in the thickness direction is also referred to as “skin side”, and the other side is also referred to as “non-skin side”. Incidentally, the schematic plan view of FIG. 2 shows the developed absorbent article 1 as seen from the skin side.

  Here, as shown in FIG. 2, a fastening tape 11 protrudes in the lateral direction at the lateral outer end 1bsef2 of each second side flap 1bsf. Then, by fastening each fastening tape 11 to the target region 1at (FIG. 2) provided on the non-skin side surface of the first waistline 1a, as shown in FIG. 4, the waistline opening 1HB and the pair of legs Openings 1HL and 1HL are formed, whereby the absorbent article 1 is attached to the low-weight infant 101.

  Such an absorbent article 1 has a substantially vertically long absorbent body 3 that absorbs excretory fluid such as urine, a liquid-permeable top sheet 2 that covers the absorbent body 3 from the skin side, and covers the absorbent body 3 from the non-skin side. A pair of liquid-impermeable leak-proof sheets 4, a substantially hourglass-shaped exterior sheet 5 that covers the leak-proof sheet 4 from the non-skin side and forms the outer shape of the absorbent article 1, and a top sheet 2 in a lateral direction. And a pair of three-dimensional gather sheets 6 and 6 that form three-dimensional gathers 6g and 6g as leak-proof walls at respective lateral ends of the absorber 3.

  As shown in FIGS. 3A to 3C, the absorbent body 3 includes an absorbent core 3c and a core wrap sheet 3rs that covers substantially the entire outer peripheral surface of the absorbent core 3c. The absorbent core 3c is formed by molding a predetermined liquid absorbent material into a substantially hourglass shape in plan view as an example of a predetermined shape (FIG. 2). As a liquid absorptive material, liquid absorptive granular materials, such as liquid absorptive fibers, such as pulp fiber, and a superabsorbent polymer (henceforth SAP) can be illustrated. Moreover, liquid permeable sheets, such as tissue paper and a nonwoven fabric, are used for the core wrap sheet 3rs. In addition, the shape of the absorptive core 3c is not limited to the above-described substantially hourglass shape in a plan view, and may be, for example, a substantially rectangular shape in a plan view.

  The top sheet 2 is formed of a non-woven fabric such as an air-through non-woven fabric, and has a planar dimension that protrudes from both sides in the longitudinal direction and both sides in the lateral direction of the absorbent body 3 as shown in FIGS. 2 and 3A to 3C. Moreover, the leak-proof sheet 4 also has a planar dimension that protrudes from both sides in the vertical direction and both sides in the horizontal direction of the absorber 3 and is formed of a resin film such as a polyethylene film. And these both sheets 2 and 4 are joined mutually by adhesion | attachment, welding, etc. in the part protruded from the absorber 3 to the vertical direction and a horizontal direction, and, thereby, the absorber 3 is hold | maintained between both sheets 2 and 4 mutually. ing.

  As shown in FIG. 2, the exterior sheet 5 is formed of an appropriate nonwoven fabric or the like and forms the outer shape of the absorbent article 1. And on the skin side surface of the exterior sheet 5, the absorbent body 3 held between the two sheets 2 and 4 and the two sheets 2 and 4 are overlapped and adhered to each other while aligning the center positions in the lateral direction. They are integrated by welding or the like (FIGS. 3A to 3C). In this integrated state, the absorbent body 3 extends across the first waistline portion 1a, the crotch portion 1m, and the second waistline portion 1b (FIG. 2).

  As shown in FIG. 2, the three-dimensional gather sheets 6 and 6 (corresponding to the three-dimensional gather forming portion) are arranged to cover the end portions 2e, 2e in the lateral direction of the top sheet 2 from the skin side. A pair is provided corresponding to 2e. And each sheet | seat 6 and 6 forms the solid gathers 6g and 6g which stand up from the skin side surface of the top sheet 2, respectively along a vertical direction. That is, each three-dimensional gather sheet 6 is fixed to the top sheet 2 with a hot-melt adhesive or the like, and has a strip-like base end portion 6k along the longitudinal direction that cannot stand up, and a thickness direction with the base end portion 6k as a fulcrum. 6s of standing parts which can stand on the skin side are arranged in the horizontal direction. And the rubber thread 6r is fixed to the front-end | tip part of the horizontal direction of the standing part 6s by the hot-melt adhesive agent etc. in the state extended in the vertical direction as the elastic member 6r for three-dimensional gathers along the vertical direction. Therefore, contraction force is given to the upright part 6s in the vertical direction, and the upright part 6s contracts in the vertical direction based on the contraction force, so that the upright part 6s forms a plurality of ridges in the thickness direction. Thus, it functions as a three-dimensional gather 6g (FIGS. 2 and 3B).

In addition, as shown in FIGS. 2, 3A, and 3C, the end portions 6sea and 6seb in the vertical direction of the upright portion 6s are in a state in which the end portions 6sea and 6seb are hung on the top sheet 2, respectively. Fixing portions 6j, 6j that are fixed to each other are formed in a strip shape along the vertical direction. That is, a hot melt adhesive is provided in a band shape along the vertical direction as the fixing portions 6j, 6j between the top sheet 2 and the portions corresponding to the fixing portions 6j, 6j in the end portions 6sea, 6seb. The end portions 6seLa and 6seLb are fixed to the top sheet 2 by the adhesive.
As a suitable material for the three-dimensional gather sheet 6, an appropriate non-woven fabric can be exemplified, and an SMS non-woven fabric (spunbond / meltblown / spunbond non-woven fabric) is used here, but if it has flexibility, Not limited to this.

  2 and 3A to 3C, the three-dimensional gather sheet 6 extends toward the outer side in the lateral direction to substantially the same position as the outer edge of the exterior sheet 5, and The outer sheet 5 is integrated with the exterior sheet 5 by adhesion or welding at the edge or in the vicinity thereof. As a result, the three-dimensional gather sheet 6 and the exterior sheet 5 cooperate with each other, and in the first waistline portion 1a and the second waistline portion 1b, the first side flaps 1asf and 1asf and the second side flap 1bsf described above, respectively. , 1bsf are formed. On the other hand, in the crotch part 1m, similarly, the three-dimensional gather sheet 6 and the exterior sheet 5 are integrated by adhesion or welding at the above-mentioned edge or in the vicinity thereof. The aforementioned crotch side flaps 1 msf and 1 msf are formed over a predetermined range.

Each of the crotch side flaps 1msf, 1msf is a portion that becomes the leg opening 1HL in the mounted state together with a part of the first side flap 1asf and a part of the second side flap 1bsf, That is, the part which covers the leg periphery of the low weight child 101 is comprised. Then, in order to form leg gathers by contracting each crotch side flap 1 msf in the vertical direction, each leg crotch side flap 1 msf is provided with a rubber thread 21 along a straight line in the vertical direction as the leg elastic member 21. It is fixed by bonding or the like in a stretched state in the direction. Therefore, when the stretched state of the leg-hole elastic member 21 is relaxed, the crotch side flap 1msf contracts in the vertical direction to form a plurality of heels, and the heels become leg gathers.
As shown in FIG. 2, the leg-hole elastic member 21 is provided across at least the crotch part 1m and the second waistline part 1b. Moreover, in this example, as shown to FIG. 3B, although the leg periphery elastic member 21 is inserted between the exterior sheet 5 and the solid gathers sheet 6, it is not restricted to this at all. For example, it may be adhered to the non-skin side surface of the exterior sheet 5, or may be adhered to the skin side surface of the three-dimensional gather sheet 6. Furthermore, in this example, the rubber thread 21 is used as the leg-hole elastic member 21, but the invention is not limited to this. Flat rubber may be used, or a stretchable nonwoven fabric or stretch film having stretchability based on its own elasticity may be used.

As shown in FIG. 2, the fastening tapes 11, 11 are respectively provided at the lateral outer ends 1 bsfe 2, 1 bsfe 2 of the pair of second side flaps 1 bsf, 1 bsf. Each fastening tape 11 is a strip-shaped sheet made of a horizontally long non-woven fabric as a tape base 11a, and one end of the tape base 11a in the horizontal direction is fixed to a part 1bk of the outer end 1bsfe2 of the second side flap 1bsf. The other end portion protrudes outward in the lateral direction from the outer end portion 1bsfe2 of the second side flap 1bsf.
And the male material 11m of a hook_and_loop | surface fastener is being fixed to the skin side surface of this projecting part, and also several protrusions (not shown) for latching are provided in the skin side surface of the male material 11m. . Therefore, the fastening tape 11 is locked to the first waistline portion 1a when the locking protrusion of the male material 11m is hooked on the target region 1at set on the non-skin side surface of the first waistline portion 1a. For the male material 11m, a well-known one can be applied as a hook-and-loop fastener, and for example, a hooking protrusion or a T-shaped protrusion can be used as appropriate.

  As shown in FIGS. 2 and 3A, the target region 1at is the non-skin side surface of the exterior sheet 5 that is the non-skin side surface of the first waistline 1a. That is, in this example, since the exterior sheet 5 is a nonwoven fabric and the sheet 5 can secure a sufficient locking force with the male material 11m, the non-skin side surface of the exterior sheet 5 itself The male material 11m is to be locked. However, the present invention is not limited to this, and a dedicated target tape may be separately used for forming the target region 1at.

  When the absorbent article 1 is attached to the low-weight infant 101, a pair of fastenings is performed while pulling the second waistline portion 1b to both lateral sides with the pair of fastening tapes 11, 11 of the second waistline portion 1b. Each of the tapes 11 and 11 is locked to the target region 1at of the first waistline portion 1a (FIG. 4). Incidentally, in the example of FIG. 2, the tape base material 11 a further protrudes outward in the lateral direction from the male material 11 m, and this protruding portion 11 ap serves as a knob portion 11 ap that is picked when the fastening tape 11 is pulled to both sides. Function.

  The basic configuration of the absorbent article 1 has been described above. In the present embodiment, the absorbent article 1 can be used not only as the tape-type disposable diaper 1 as described above but also as the absorbent pad 1p. ing. That is, as shown in FIG. 2, cut lines 1c and 1c are formed on the second side flaps 1bsf and 1bsf of the second waistline portion 1b in the unfolded state of the absorbent article 1 as shown in FIG. The fastening tapes 11, 11 can be removed by the cut lines 1c, 1c. And if the tapes 11 and 11 are removed as shown in FIG. 5, the absorbent article 1 can be used as the absorbent pad 1p.

FIG. 6 is an enlarged view of a main part for explaining the cut line 1c. As shown in FIG. 6, the cut line 1c is a portion 1bk to which the tape base material 11a of the fastening tape 11 is fixed in the second waistline portion 1b (the portion 1bk indicated by hatching in FIG. 6). , And also referred to as a fastening tape fixing portion 1bk). Specifically, the cut line 1c is formed on each second side flap 1bsf so as to correspond to each fastening tape 11. Each cut line 1c passes from the portion 1bHB of the second waistline portion 1b, which becomes the waistline opening 1HB, to the side of the second waistline portion 1b through the position in the lateral direction from the fastening tape fixing portion 1bk. It is formed by a route extending toward the portion 1bHL that becomes the leg opening 1HL.
Therefore, by cutting each cut line 1c and cutting the fastening tape fixing portion 1bk from the second waistline portion 1b, it is possible to remove all of the fastening tape 11 projecting laterally from the second waistline portion 1b (FIG. 5). As a result, as shown in FIG. 5, the remaining portion 1bc left at the center of the second waistline portion 1b can be made in a state in which there is no member protruding in the lateral direction, and as a result, the cut line 1c The absorbent article 1p after cutting can be used without any problem as the absorbent pad 1p that requires insertion.
For example, when inserting under the body of the low-weight infant 101 in the prone posture as shown in FIG. 7A, the horizontal leg side of the infant 101 starts with the second waistline 1bc from which the fastening tape 11 has been removed. If the absorbent article 1p is inserted from the head to the head side, the article 1p can be quickly laid under the child 101. Therefore, the article 1p can be used as the absorbent pad 1p. Incidentally, in the laid state of FIGS. 7A and 7B, the second waistline portion 1bc is located on the abdomen side of the child 101. While maintaining this state, as shown by the arrow in FIG. If the pad 1p is bent upward at the portion 1m, and the first waistline portion 1a covers the buttocks and back of the child 101 from above, the absorbent pad 1p can be attached to the child 101. Complete.

  In addition, as can be seen from the above, in this example, when used as the absorbent pad 1p, the arrangement relationship in the vertical direction is the reverse of the case where it is used as the tape-type disposable diaper 1. That is, the correspondence relationship between the abdominal side and the back side of the low-weight infant 101 and the first waistline portion 1a and the second waistline portion 1b is opposite to each other between the tape-type disposable diaper 1 and the absorbent pad 1p. And if it becomes like this, since workers, such as a nurse who equips the low-weight child 101 with the articles | goods 1 and 1p, will be aware of one side and the other in the vertical direction, This makes it difficult to make a mistake in the vertical direction.

  As shown in FIG. 6, the perforation of the cut line 1c is a plurality of linear slits (corresponding to the through-holes, and is schematically illustrated throughout the entire view in which the perforations are illustrated including FIG. It is a collection of That is, a plurality of linear slits (not shown) penetrating the second side flap 1bsf in the thickness direction are arranged along the direction in which the cut line 1c should extend. And about the length of a slit and the pitch of a slit, it sets suitably in consideration of cutting property etc., but if a specific example is given here, about the length of a slit, 1 mm-3 mm can be illustrated, About the space | interval (namely, length of the part which does not have the slit located between slits) between slits, 0.5 mm-2 mm can be illustrated. Incidentally, it can be said that the pitch of the slit is a sum of the length of the slit and the interval.

Hereinafter, the cut line 1c will be described in more detail.
As shown in FIG. 6, the tear line 1 c formed on one second side flap 1 bsf and the tear line 1 c formed on the other second side flap 1 bsf are mutually opposite of the absorbent article 1 in the lateral direction. The line is symmetrical with respect to the center line C1. Each cut line 1c has a substantially J shape having a linear portion 1cL along the vertical direction and a curved portion 1cB having a curved shape.

The straight portion 1cL is a portion 1bHB to be the waistline opening 1HB in the second waistline portion 1b, that is, along a straight line parallel to the longitudinal direction starting from the longitudinal outer edge 1be1 of the second waistline portion 1b. Then, it proceeds to the inside in the vertical direction, and reaches the same position as the position of the fastening tape 11 in the vertical direction or a position slightly beyond the same position. At this position, the curved portion 1cB is connected to the curved portion 1cB. The curved portion 1cB further extends inward in the vertical direction. Specifically, the curved portion 1cB is displaced outward in the lateral direction with a predetermined radius of curvature as it goes inward in the vertical direction, and finally, the leg portion of the second waistline portion 1b. It reaches a portion 1bHL to be the opening 1HL, that is, an outer edge 1be2 in the lateral direction of the second waistline portion 1b.
Further, as shown in FIG. 2, the cut line 1c is set so that the maximum value L1c of the distance between the pair of cut lines 1c, 1c is smaller than the maximum value L1a of the lateral dimension of the first waistline portion 1a. , 1c is set.

  Therefore, as shown in FIG. 5, after the fastening tape fixing portions 1bk, 1bk are cut off from the second side flaps 1bsf, 1bsf of the second waistline portion 1b at the cut lines 1c, 1c, the first remaining in the horizontal center. The maximum value L1bc in the horizontal direction of the remaining portion 1bc of the second waistline portion 1b is smaller than the maximum value L1a in the horizontal direction of the first waistline portion 1a. Therefore, as shown in FIGS. 7A and 7B, the absorbent pad 1p is placed under the body of the low-weight infant 101 in the collapsed posture as shown in FIGS. 7A and 7B, with the remaining portion 1bc at the center of the second waistline portion 1b as the head. When inserting into the cable, the insertion can be performed smoothly. As a result, the pad 1p is suitably used as an excellent plug-in.

  Further, as shown in FIG. 5, the remaining portion 1bc remaining on the second waistline portion 1b after being cut off at the cut lines 1c and 1c has a narrow width portion 1bc1 having a small lateral dimension at a position outside in the vertical direction. The wide portion 1bc2 having a larger dimension in the lateral direction than the narrow portion 1bc1 is provided on the inner side in the vertical direction than the narrow portion 1bc1. Therefore, when the absorbent pad 1p is inserted with the second waistline portion 1b as the head, the narrow portion 1bc1 having a small lateral dimension is inserted with the head as the head, so that the pad 1p can exhibit a good insertion property.

  Furthermore, according to the route of the cut line 1c, when the article 1 is used as a tape-type disposable diaper 1 as shown in FIG. 8A and FIG. The article 1 can be removed from the wearing subject 101 with the face-up posture, which is suitable for the idea of minimum handling. Details are as follows. First, in the general wearing form when the article 1 is used as a tape-type disposable diaper 1, as shown in FIG. 8A, the second waistline portion 1b to which the fastening tape 11 is fixed is the wear target person. The article 1 is attached to the wearing subject 101 so as to be located on the back side of the 101. For this reason, in the collapsed posture, the second waistline portion 1b is normally positioned above the vertical direction. Here, the cut line 1c is formed in the second waistline portion 1b. Therefore, as shown to FIG. 8B, the part 1bk to which the fastening tape 11 was fixed among the said 2nd waist part 1b can be cut off by the cut line 1c. And thereby, the fastening tape 11 can be removed from the center part 1bc (FIG. 6) of the horizontal direction in the 2nd trunk periphery part 1b with a collapsed attitude | position, As a result, the absorbent article 1 is maintained with the same attitude | position. Can be deployed (FIG. 8B). And thereby, the absorbent article 1 as the diaper 1 can be quickly removed from the wearing subject 101 in the prone posture.

  Further, as shown in FIG. 6, according to the above route, the cut line 1c passes through a position inside the second waistline portion 1b in the lateral direction from the fastening tape fixing portion 1bk. Therefore, when cutting the fixed portion 1bk, it is not necessary to cut the fastening tape 11 at all, and thereby the force required for cutting the cut line 1c can be reduced. As a result, it is possible to reduce the external load that can be given to the child 101 when the diaper 1 is removed from the low-weight child 101 in the prone posture, and this is also considered for the minimum handling. Suitable for

  Furthermore, if the curved portion 1cB as described above is provided, the cut line 1c can reach the lateral outer edge 1be2 of the second waistline portion 1b by a relatively short route. That is, as shown in FIG. 6, the route of the cut line 1 c can be ended without greatly extending inward in the vertical direction. Thus, when the route of the cut line 1c greatly extends inward in the vertical direction, for example, when the route reaches the first side flap 1asf (FIG. 2), the positioning posture is low. It is possible to effectively prevent a part of the cut line 1c from being sandwiched between the abdomen of the weight child 101 and the leg that is opened in an M shape and difficult to cut.

  Incidentally, in the example of FIG. 6, the cut line 1c is completely contained in the second side flap 1bsf, but the present invention is not limited to this. That is, depending on the case, a part of the cut line 1c may protrude toward the crotch side flap 1msf. However, if the amount of protrusion is excessive, it becomes difficult to cut the above-mentioned cut line 1c because it becomes easy to be sandwiched between the abdomen of the low-weight child 101 and the M-shaped leg or the cutting length becomes long. It can lead to a malfunction.

In the example of FIG. 6, a plurality of sheets 4, 5, and 6 exist at the formation position of the linear portion 1cL. Specifically, there are three members, the three-dimensional gather sheet 6, the leak-proof sheet 4, and the exterior sheet 5, from the skin side in the thickness direction, and the number of stacked sheets is three. Therefore, in this linear portion 1cL, perforations are formed through the three stacked sheets 4, 5, and 6.
On the other hand, as described above, the formation position of the curved portion 1cB is displaced outward in the horizontal direction as it proceeds inward in the vertical direction. For this reason, the number of stacked sheets changes in the process of proceeding from one end to the other end of the curved portion 1cB. That is, as shown in the left half of FIG. 6, in the portion 1cB1 in a predetermined range that continues to the linear portion 1cL among the curved portions 1cB, the number of stacked sheets is three as in the linear portion 1cL. However, in the portion 1cB2 that is adjacent to the inside in the vertical direction from the portion 1cB1 within the predetermined range in the curved portion 1cB, the leak-proof sheet 4 does not exist, so the three-dimensional gather sheet 6 and the exterior sheet 5 The two-sheet configuration. Therefore, in the former part 1cB1, perforations are formed through the three sheets 4, 5 and 6, whereas in the latter part 1cB2, the perforations are formed through the two sheets 5 and 6. Is formed.
Thus, even in the part 1cB2 of the curved part 1cB, when the number of stacked sheets is small, the part 1cB2 is relatively easy to cut. Therefore, it is possible to easily cut a curved line that is generally more difficult than a straight line, and as a result, it is possible to accurately cut the curved portion 1cB along the curved target shape.

Furthermore, in this example, as described above with reference to FIG. 6, the cut line 1 c is formed in the second side flap 1 bsf, and therefore, the cut line 1 c is outside the absorber 3 in the lateral direction. It is formed at the position. As can be seen with reference to FIG. 6, the cut line 1 c is formed at a position outside in the lateral direction from the base end portion 6 k and the upright portion 6 s of the three-dimensional gather sheet 6.
Therefore, even if the cut line 1c is cut, the base 3k and the upright part 6s of the absorber 3 and the three-dimensional gather sheet 6 are not affected at all and are maintained in a healthy state. As a result, even when used as the absorbent pad 1p, the absorbent body 3 and the upright portion 6s can exhibit the excrement retention function without any problem, and thus the pad 1p is highly leak-proof. Can play sex.

  In addition, as described above, the second waistline portion 1b is provided with the fixing portion 6j that fixes the vertical end portion 6seb of the standing portion 6s in a face-down state, as shown in FIG. The cut line 1c is formed at a position on the outer side in the lateral direction from the fixed portion 6j. Therefore, the said fixing | fixed part 6j can be left in the absorbent pad 1p which is the absorbent article 1p cut off by the cut line 1c. Then, since the contraction force acting on the upright portion 6s is input to the fixing portion 6j, the absorbent pad 1p can be quickly bent so that the non-skin side in the thickness direction becomes the inner peripheral side. Thus, the pad 1p can be brought into close contact with the body of the low-weight infant 101 quickly along the curved body. This also contributes to the improvement of the leakproof property of the absorbent pad 1p.

  Incidentally, in terms of the positional relationship with the top sheet 2, the cut line 1c is formed at a position laterally outside the sheet 2, that is, the top sheet 2 exists at the position of the cut line 1c. Not done. Therefore, it is possible to reduce the number of stacked sheets at the position of the cut line 1c, which contributes to an improvement in the ease of cutting the cut line 1c.

  Here, from the viewpoint of facilitating further cutting of the cut line 1c, preferably, the sheet 4 is arranged so that the stretching direction at the time of production of the resin film forming the leak-proof sheet 4 of FIG. 6 is along the vertical direction. Good to have been. That is, in general, the resin film is easily cut along the stretching direction because the resin orientation is aligned in the stretching direction. Therefore, if the stretching direction is along the longitudinal direction, the leak-proof sheet 4 can be easily cut along the longitudinal direction. As a result, the linear portion 1cL where the sheet 4 is present can be reduced. It becomes possible to cut accurately along the vertical direction.

Further, when the curved portion 1cB is cut continuously with the straight portion 1cL of the cut line 1c as shown in FIG. 6, the moment when the straight portion 1cL is cut is extended as it is. It is easy to cut by mistake on the line or in the vicinity thereof, that is, there is a risk that the position shifted from the curved portion 1cB may be cut by mistake. In this respect, in this example, the following measures are taken. Yes.
First, the leg-hole elastic member 21 is positioned in the vicinity of the cut line 1c. Here, when viewed from the thickness direction, the leg-hole elastic member 21 and the curved portion 1cB of the cut line 1c are provided. Are crossed at a predetermined intersection position P1c. Specifically, as shown in the right half of FIG. 6, when the curved portion 1cB is virtually divided into a waist portion opening 1HB side portion 1cBa and a leg portion opening portion 1HL side portion 1cBb, leg leg elasticity The intersection position P1c with the member 21 is included in the former part 1cBa on the side of the waistline opening 1HB. Therefore, the intersection position P1c is a relative position of the boundary position PLB between the linear part 1cL and the curved part 1cB. Located in the vicinity.

  Therefore, in the process of cutting the curved portion 1cB continuously to the straight portion 1cL of the cut line 1c, if the cutting position reaches the intersection position P1c in the vicinity of the boundary position PLB, the straight portion The momentum of cutting in the vertical direction attached at 1 cL is absorbed by the elastic deformation of the leg-hole elastic member 21, and the linear cutting operation along the vertical direction is stopped. As a result, the trajectory correction to the curved portion 1cB can be quickly performed, and as a result, the cutting can be accurately performed along the curved portion 1cB.

  Furthermore, according to the crossing relationship between the cut line 1c and the leg elastic member 21 (corresponding to the elastic member), after cutting the cut line 1c, most of the leg elastic member 21 is made of the absorbent pad 1p. Remains. That is, as shown in FIG. 6, according to this crossing relationship, the leg-hole elastic members 21 are arranged next to each other in the horizontal direction of the cut line 1c over a predetermined range in the vertical direction of the second waistline portion 1b. In addition, at least in part A21 of the predetermined range, the leg-hole elastic member 21 is located on the inner side in the lateral direction than the cut line 1c. Therefore, after the cutting line 1c is cut, the leg-hole elastic member 21 remains on the remaining portion 1bc of the second waistline portion 1b of the absorbent pad 1p at least in the part A21.

  Therefore, as shown by an arrow in FIG. 7A, the remaining portion 1bc of the second waistline portion 1b of the pad 1p can rise to the skin side in the thickness direction by the contraction force of the leg-hole elastic member 21. Therefore, when the absorbent pad 1p is inserted and arranged so that the first waistline portion 1a is positioned on the back side while the remaining portion 1bc of the second waistline portion 1b is positioned on the abdomen side of the low-weight infant 101 in the lying posture, The remaining portion 1bc of the second waistline portion 1b that stands on the skin side comes into contact with the abdomen of the baby 101. And thereby, the clearance gap between the abdomen of the same child 101 and the remaining part 1bc of the 2nd waist part 1b can be made small, As a result, the said absorbent pad 1p can show high leak-proof property.

  In the example of FIG. 9, the ease of cutting the cut line 1 c is varied according to the position in the vertical direction by devising the perforation. For example, when the cut line 1c is virtually divided into three parts 1c1, 1c2, and 1c3 in the vertical direction, the ease of cutting is set corresponding to each part 1c1, 1c2, and 1c3. Specifically, the first portion 1c1 (corresponding to the first cut line portion) that is one portion 1c1 of the three portions 1c1, 1c2, and 1c3 is a portion 1bHB that becomes the waistline opening 1HB in the second waistline portion 1b. The first portion 1c1 has a perforation that is easy to cut. Further, the second portion 1c2 (corresponding to the second cut line portion) which is another one portion 1c2 is positioned so as to include the same position as the fastening tape fixing portion 1bk with respect to the position in the vertical direction. The portion 1c2 has a perforation that is harder to cut than the first portion 1c1. Further, the remaining third portion 1c3, which is the first portion 1c3, is the curved portion 1cB described above. The portion 1c3 is perforated with the same specifications as the first portion 1c1 and easy to cut.

  And if it does in this way, when pulling each fastening tape 11 and 11 to the outer side of a horizontal direction in order to mount the absorbent article 1 on the low weight child 101 as a tape-type disposable diaper 1, said 1st above It is possible to effectively prevent the second portion 1c2 from being cut off based on the perforation of the second portion 1c2 that is difficult to cut. Further, when the diaper 1 is removed from the low-weight infant 101 or when the absorbent article 1 is used as the absorbent pad 1p, the above waistline opening 1HB is based on the perforated perforation of the first portion 1c1. The curved portion 1cB, which is the third portion 1c3, can be accurately cut along the curved target shape based on the perforation that is easy to cut. Can be cut.

  Incidentally, the setting of the perforation that is easy to cut and the perforation that is difficult to cut can be realized by changing the length of the slit provided in the perforation, and in this example, it is done so. That is, in this example, the ratio of the length of the slit per unit length in the direction in which the cut line 1c extends is set as the portion 1c2 by changing the length of the slit while keeping the pitch of the slit constant. The portions 1c1 and 1c3 are different from each other. In general, the larger the ratio, the easier to cut, and the smaller the ratio, the harder to cut. Therefore, in this example, the ratio in the second portion 1c2 is set to be smaller than the ratio in the first portion 1c1 and the ratio in the third portion 1c3.

  FIG. 10 is an explanatory diagram of the cut line 1c ′ of the first modification. In the above-described embodiment, as illustrated in FIG. 6, the number of stacked sheets is changed from three to two according to the position of the cut line 1 c. In the first modification, the cut line 1 c is used. The number of stacked sheets is constant over the entire length of '. That is, as shown in FIG. 10, the position of the cut line 1c ′ of the first modification is shifted outward in the lateral direction from the cut line 1c of the above-described embodiment of FIG. The cut line 1c ′ is located laterally outside the leak-proof sheet 4 over the entire length thereof. And in this position, only two sheets of the three-dimensional gather sheet 6 and the exterior sheet 5 exist. Therefore, the perforation line of the cut line 1c ′ is formed by penetrating these two sheets 5 and 6 in the thickness direction, and since the number of stacked sheets is small, the cut line 1c with good cutting properties. Can be cut. Since the other points are generally the same as those of the above-described embodiment, the same components are denoted by the same reference numerals and the description thereof is omitted.

  FIG. 11 is an explanatory diagram of the cut line 1c ″ of the second modification. In the above-described embodiment and the first modified example, as shown in FIGS. 6 and 10, the cut lines 1c and 1c ′ have the linear portion 1cL and the curved portion 1cB, but this second modified example. Then, the cut line 1c '' does not have the curved portion 1cB, but has only the linear portion 1cL. That is, in the second modification, the cut line 1c '' is shifted further outward in the horizontal direction than in the first modification, and thus, only in one linear portion 1cL along the vertical direction. The fastening tape fixing part 1bk can be cut off. Further, according to such a cut line 1c ″, since it is only the linear portion 1cL, the cutting is easy, and as a result, it is possible to cut accurately without significant displacement from the cut line 1c ″. It is. Note that only two sheets of the three-dimensional gather sheet 6 and the exterior sheet 5 exist at the position of the cut line 1 c ″. Therefore, the perforation line of the cut line 1 c ″ is formed through the two sheets 5 and 6 in the thickness direction.

  FIG. 12 is an explanatory diagram of a cut line 1 c ″ ″ according to the third modification. Any of the cutoff lines 1c, 1c ′, 1c ″ of the above-described embodiment (FIG. 6), the first modification (FIG. 10), and the second modification (FIG. 11) is included in the second waistline portion 1b. The portion 1bHB serving as the waist opening 1HB extends from the portion 1bHL serving as the leg opening 1HL in a so-called substantially J-shape or straight line, but the cut line 1c ′ ″ of the third modification is formed. Differ mainly in that they do not take such a route. That is, as shown in FIG. 12, the cut line 1c '' 'is formed in a substantially U shape so as to surround the fastening tape fixing portion 1bk from three sides. In the cut line 1c ′ ″, the start end Ps is located at the laterally outermost end edge 1bsfee in the second side flap 1bsf of the second waistline portion 1b, and from there, it is substantially U-shaped. It extends so that the fastening tape fixing portion 1bk enters the inner peripheral side of the route, and finally reaches the outermost edge 1bsfee in the lateral direction of the second side flap 1bsf in the same manner as the above-described start end Ps, and the outermost The position Pe reaching the end edge 1bsfee is set as the end Pe of the cut line 1c ′ ″. In addition, since points other than this are generally the same as in the above-described embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted.

  Further, in some cases, a cut line 1ca similar to the cut line 1c of the second waistline 1b described above may be formed in the first waistline 1a. FIG. 13 is a schematic plan view of an absorbent article 1 ″ ″ ″ having the cut line 1 ca. In this example, the first side flaps 1asf and 1asf of the first waistline portion 1a are also formed with substantially J-shaped cutout lines 1ca and 1ca similar to the cut lines 1c and 1c of the second waistline portion 1b. Yes. And if each cut line 1ca, 1ca is cut, the maximum value L1ac of the lateral dimension of the remaining portion 1ac remaining in the lateral center of the first waistline portion 1a is the lateral value of the first waistline portion 1a before cutting. It becomes smaller than the maximum value L1a of the dimension. Therefore, when the absorbent article 1 ″ ″ ″ is inserted into an appropriate insertion object with the remaining portion 1ac of the first waistline portion 1 a after being cut as the head, the insertion property can be improved.

  Incidentally, the substantially J-shaped cut line 1ca also has a linear portion 1caL along the vertical direction at an outer position in the vertical direction, and a curved portion at a position inside the vertical direction from the linear portion 1caL. Here, the position of the linear portion 1caL in the horizontal direction is aligned with the position of the linear portion 1cL of the cut line 1c of the second waistline portion 1b. And if it arranges in this way, the remaining part 1ac of the 1st waist part 1a and the remaining part 1bc of the 2nd waist part 1b of the absorbent article 1 '' '' after cutting each cut line 1c, 1c, 1ca, 1ca Are the same size in the lateral direction, so that either can be used as the head in the insertion direction, and good insertion can be achieved.

By the way, at the beginning, it was described that the diaper 1 of this embodiment is particularly suitable for the low-weight infant 101 having a weight of 3000 grams or less. However, the diaper 1 can effectively solve the above-described problems associated with the positioning posture and the minimum handling. Taking this into consideration, it is considered that the diaper 1 is more effective when the positioning posture is more likely and minimum handling is more required. And such a case is a case where a weight is lighter.
Therefore, the diaper 1 of the present embodiment is preferably used for low birth weight infants of 500 grams or more and less than 2500 grams, and more desirably used for extremely low birth weight infants of 1000 grams or more and less than 1500 grams. Better and even more desirably for very low birth weight infants of less than 1000 grams.

  Moreover, since the diaper 1 of this embodiment is specialized for the low weight infant 101, it is formed smaller than the existing neonatal diaper 1. For example, the product length of the diaper for a newborn is 365 mm, and the circumferential length L1HB of the waistline opening 1HB in the mounted state is 304 mm, whereas in the diaper 1 of the present embodiment, the product length L1 (FIG. 2) Is 210 mm to 330 mm, and the circumference L1HB of the waistline opening 1HB in the mounted state is 160 to 295 mm.

  For example, the product length L1 is measured with the diaper 1 deployed. That is, as shown in FIG. 2, in the unfolded state, first, the fastening tapes 11 and 11 are unlocked from the target region 1at, and the first waistline portion 1a, the crotch portion 1m, and the second waistline portion 1b are vertically In the vertical direction, the three-dimensional gather sheet 6 is contracted by the three-dimensional gather elastic member 6r and the crotch side flaps 1msf and 1msf are not contracted by the leg elastic members 21 and 21. Make the diaper 1 stretched out. And the maximum dimension L1 of the vertical direction in this extended state is measured, and the measured value becomes said product length L1.

On the other hand, the circumferential length L1HB of the waistline opening 1HB is measured with the pair of fastening tapes 11 and 11 in a locked state in which the fastening tapes are overlapped. FIG. 14 is an explanatory diagram thereof. In the following, for convenience of explanation, the fastening tape 11 of the second side flap 1bsf located on the left side in FIG. 14 is referred to as “left tape 11-1”, and similarly, the second side flap located on the right side. The 1bsf fastening tape 11 is referred to as a “right tape 11-2”.
First, as a preparation for measurement, the two fastening tapes 11-1 and 11-2 are brought into a locked state in which the fastening tapes are overlapped. That is, as shown in FIG. 14, after locking the male material 11m of the left tape 11-1 to the target region 1at of the first waistline portion 1a, the male material 11m of the right tape 11-2 is fixed to the left tape 11-1. Locks to the non-skin side surface 11-1s. However, in this case, the leading end 11-2e of the right tape 11-2 is aligned with the left tape 11 while aligning the longitudinal center positions C11-1, C11-2 of the tapes 11-1, 11-2. -1 to align with the end 11me on the root side of the male material 11m. And thereby, it will be in the latching state of a fastening tape overlapping form.

  Then, the waistline opening 1HB formed on the basis of this locked state is extended until the shrinkage based on the waistline elastic member 21 has just disappeared. And in this expansion | extension state, the circumference L1HB of the trunk periphery opening part 1HB is measured, and the said circumference L1HB is acquired by this.

  Incidentally, examples of the product length L1 of the low birth weight infant and the circumference L1HB of the waist opening 1HB can include 310 mm and 273.5 mm, respectively, and the product length L1 and the waist circumference opening of the extremely low birth weight infant. Examples of the circumference L1HB of the part 1HB can include 270 mm and 220 mm, respectively, and examples of the product length L1 of the ultra low birth weight infant and the circumference L1HB of the waist opening 1HB are 230 mm and 219 mm, respectively. Can be mentioned.

=== 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. For example, the following modifications are possible.

  In the above-described embodiment, the perforation is given as an example of the cut lines 1c, 1c ', 1c ", 1c"', 1ca, but the present invention is not limited to this. That is, as long as the cut lines 1c, 1c ', 1c ", 1c" ", 1ca are easier to cut than the surrounding portions, the perforations may be other than the perforations. For example, instead of linear slits along the direction in which the cut lines 1c, 1c ′, 1c ″, 1c ′ ″, 1ca should extend, arcuate or corrugated slits or through holes The planar shape may be a circle or an ellipse. Furthermore, it does not have to be a form in which a plurality of through holes are arranged. For example, a plurality of recesses may be formed by pressing or pressing and welding in the thickness direction, and the cut lines 1c, 1c ', 1c ", 1c" ", 1ca may be formed by these recesses.

In the above-described embodiment, as shown in FIGS. 6, 10, 11, and 12, the cut lines 1c, 1c ′, 1c ″, 1c ′ ″ are connected to the second side flap 1bsf of the second waistline portion 1b. Thus, the portion 1bk to which the tape base material 11a of the fastening tape 11 is fixed is cut out together with the fastening tape 11 in the second waistline portion 1b. However, the present invention is not limited to this. That is, as shown in FIG. 15, the cut line 1c11a may be formed only on the fastening tape 11 without forming the cut line on the second side flap 1bsf. Details are as follows. When the absorbent article 1 is used as the absorbent pad 1p, the first thing that gets in the way is the protruding portion 11p of the fastening tape 11 that protrudes laterally from the second waistline portion 1b. Therefore, at least if this protrusion part 11p is cut out from the 2nd trunk periphery part 1b, the absorbent article 1p after cut off can be used as an absorbent pad 1p without a problem. Therefore, as shown in FIG. 15, the cut line 1c11a may be formed only on the tape base material 11a of the fastening tape 11.
Here, the formation position of the cut line 1c11a will be described in detail. The cut line 1c11a is the outermost edge in the lateral direction of the side flap 1bsf of the second waistline portion 1b in the tape base material 11a of the fastening tape 11. It is formed along the vertical direction at the same position as 1 bsfee. Therefore, if the cut line 1c11a is cut, the protruding portion 11p of the fastening tape 11 can be removed. That is, it is possible to make a state in which there is no portion that partially protrudes laterally from the second waistline portion 1b. And if it becomes like this, when inserting the pad 1p with the 2nd waist part 1b in the head under the low weight child 101 of the prone posture, a big catch will be suppressed and the pad 1p will be promptly inserted. It becomes possible to insert into.

1 disposable diaper (absorbent article), 1 '''' absorbent article,
1HB waist opening, 1HL leg opening,
1a 1st waist part, 1ac remainder,
1 asf 1st side flap, 1 at target area,
1b Second waistline part,
1bc remaining portion (central portion), 1bc1 narrow portion, 1bc2 wide portion,
1be1 outer edge, 1be2 outer edge,
1bsf second side flap (end), 1bsef2 outer end,
1 bsfeee outermost edge,
1bHB The part that becomes the waist opening, 1bHL The part that becomes the leg opening
1bk fastening tape fixing part (part where the fastening tape is fixed),
1c cut line, 1c 'cut line, 1c''cut line,
1c '''tear line,
1c1 first part (first cut line part),
1c2 second part (second cut line part),
1c3 third part (curved part),
1 cL linear part,
1cB curved portion, 1cB1 portion, 1cB2 portion,
1cBa part, 1cBb part,
1ca cut line, 1caL linear part, 1caB curved part,
1c11a tear line,
1m inseam, 1msf inseam side flaps,
1sf side flap,
1p absorbent pad (absorbent article),
2 Top sheet, 2e end,
3 absorber, 3c absorbent core, 3rs core wrap sheet,
4 Leak-proof sheet, 5 exterior sheet,
6 3D gather sheet (3D gather forming part),
6g solid gather, 6j fixed part, 6k base end part,
6r elastic member for three-dimensional gather, 6s standing part,
6seLa end, 6seLb end,
6sea end, 6seb end,
11 Fastening tape,
11a tape base material, 11ap protruding part (pick part),
11m male material, 11me end,
11-1 left tape, 11-1s non-skin side,
11-2 Right side tape, 11-2e tip,
11p protrusion,
21. Leg elastic member (elastic member),
101 Low-weight children (wearing subjects),
C1 centerline,
C11-1 center position, C11-2 center position,
P1c crossing position, PLB boundary position Ps start point, Pe end point,
A21 part,

Claims (13)

The first waistline portion, the crotch portion, and the second waistline portion are arranged side by side in the longitudinal direction, and the transverse direction of the second waistline portion is By fastening each fastening tape fixed to each end to the first waistline, a waistline opening and a pair of leg openings are formed, and a tape-type disposable diaper. An absorbent article that can be used,
A cutting line for cutting out a protruding portion that protrudes outward in the lateral direction from the second waistline portion of at least the fastening tape is formed in the developed state of the absorbent article,
By cutting off the protrusion with the cut line, it can be used as an absorbent pad without the protrusion ,
The cut line is a linear portion extending linearly along the vertical direction from a portion that becomes the waistline opening, and is located on the inner side in the vertical direction than the linear portion, and on the inner side in the vertical direction. An absorbent article comprising: a curved portion having a curved shape displaced outward in the lateral direction as it advances . The absorbent article according to claim 1,
The cut line is formed at each position on both sides in the lateral direction, corresponding to the fastening tape,
The said cut line is formed so that the part to which the said fastening tape is fixed among the said 2nd waist part may be cut off, The absorbent article characterized by the above-mentioned. The absorbent article according to claim 2,
The absorbent article according to claim 1, wherein a maximum value of the lateral distance between the cut lines is smaller than a maximum value of the lateral dimension of the first waistline portion. The absorbent article according to claim 2 or 3,
Each of the cut lines passes from the portion serving as the waistline opening portion through the position on the inner side in the lateral direction from the portion of the second waistline portion to which the fastening tape is fixed. An absorbent article, characterized in that the absorbent article is formed by a route extending toward a portion serving as an opening. The absorbent article according to any one of claims 1 to 4 ,
The cut line has a plurality of through holes penetrating in the thickness direction,
The absorbent article, wherein the plurality of through holes are arranged along a direction in which the cut line should extend. The first waistline portion, the crotch portion, and the second waistline portion are arranged side by side in the longitudinal direction, and the transverse direction of the second waistline portion is By fastening each fastening tape fixed to each end to the first waistline, a waistline opening and a pair of leg openings are formed, and a tape-type disposable diaper. An absorbent article that can be used,
A cutting line for cutting out a protruding portion that protrudes outward in the lateral direction from the second waistline portion of at least the fastening tape is formed in the developed state of the absorbent article,
By cutting off the protrusion with the cut line, it can be used as an absorbent pad without the protrusion,
The cut line has a plurality of through holes penetrating in the thickness direction,
The plurality of through holes are arranged along a direction in which the cut line should extend,
The cut line is a first cut line portion formed to extend inward in the longitudinal direction from a portion that becomes the waistline opening,
A second cut line portion located at a position inside the vertical direction from the first cut line portion and at the same position as the fastening tape with respect to the vertical direction,
When compared with respect to the ratio of the length of the through hole per unit length in the direction in which the cut line extends, the ratio of the second cut line portion is more than the ratio of the first cut line portion. Absorbent article characterized by being small. The absorbent article according to claim 6 ,
The cut line has a curved portion having a curved shape that is displaced outward in the lateral direction as it proceeds inward in the vertical direction at a position inside the vertical direction with respect to the second cut line portion,
When comparing the ratio of the length of the through hole per unit length in the direction in which the cut line extends, the ratio of the second cut line portion is smaller than the ratio of the curved portion. Absorbent article characterized by. The absorbent article according to any one of claims 1 to 7 ,
An elastic member for contracting at least the second waistline portion and the crotch portion in the longitudinal direction is provided along the longitudinal direction, and the elasticity is applied over a predetermined range in the longitudinal direction of the second waistline portion. The members are arranged next to each other in the lateral direction of the cut line,
In at least a part of the predetermined range, the elastic member is located on the inner side in the lateral direction with respect to the cut line. The absorbent article according to claim 8 , wherein
The absorbent article according to claim 1, wherein the elastic member is a leg-hole elastic member for contracting in the vertical direction the portions serving as the leg-hole openings located on both sides in the lateral direction. The absorbent article according to any one of claims 1 to 9 ,
At each position on both sides in the lateral direction, a sheet-like three-dimensional gather forming portion provided along the longitudinal direction is provided,
The three-dimensional gather forming portion has a base end portion that cannot stand up in the thickness direction and a stand up portion that can stand on the skin side in the thickness direction with the base end portion serving as a fulcrum in the lateral direction. Then, the upright part stands up on the skin side in the thickness direction by shrinking the upright part in the vertical direction based on the contraction force in the vertical direction acting on the upright part,
The said cut line is formed in the position of the said outer side of the said horizontal direction rather than the said base end part and the said standing part, The absorbent article characterized by the above-mentioned. The absorbent article according to claim 10 ,
At each end in the vertical direction in the standing part, a fixing part is formed to fix the end in a state where the end is faced down to a sheet located on the non-skin side in the thickness direction,
The said cut line is formed in the position of the outer side of the said horizontal direction rather than the said fixing | fixed part, The absorbent article characterized by the above-mentioned. The absorbent article according to any one of claims 1 to 11 ,
The correspondence relationship between the abdomen side and the back side of the person to be worn, and the first waistline part and the second waistline part is opposite to each other in the tape-type disposable diaper and the absorbent pad. Absorbent article. The first waistline portion, the crotch portion, and the second waistline portion are arranged side by side in the longitudinal direction, and the transverse direction of the second waistline portion is By fastening each fastening tape fixed to each end to the first waistline, a waistline opening and a pair of leg openings are formed, and a tape-type disposable diaper. An absorbent article that can be used,
A cutting line for cutting out a protruding portion that protrudes outward in the lateral direction from the second waistline portion of at least the fastening tape is formed in the developed state of the absorbent article,
By cutting off the protrusion with the cut line, it can be used as an absorbent pad without the protrusion,
An absorbent article having another cut line for cutting off the lateral end of the first waistline portion.

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