TW201521696A - Open-type disposable diaper - Google Patents

Abstract

This unfolding-type disposable diaper has a longitudinal direction, a lateral direction, and a thickness direction that are orthogonal to each other, and has a first waist section, a crotch section, and a second waist section in a row in the longitudinal direction. Fastening tape fixed to each lateral end of the second waist section is engaged with the first waist section, whereby a waist opening and a pair of leg openings are formed. Cut-out lines, which are for cutting out the parts of the second waist section to which the fastening tape is fixed, are formed in the unfolded diaper.

Description

Disassembled disposable diaper

The present invention relates to a disposable disposable diaper for use in an unfolded type.

Conventionally, a disposable disposable disposable diaper has been known. The paper diaper has a longitudinal direction, a lateral direction, and a thickness direction orthogonal to each other. Further, the first abdominal circumference portion, the lower jaw portion, and the second abdominal circumference portion are arranged side by side in the longitudinal direction. Further, the respective fastening tapes provided at the respective end portions in the lateral direction of the second abdominal portion are locked to the target region of the first abdominal surrounding portion, thereby forming the abdominal opening portion and the pair of leg circumference opening portions ( Patent Document 1).

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2002-253608

On the other hand, there is a low birth weight child whose birth weight is Below 3000 grams. Moreover, such a low birth weight child may have spent most of the time in a fetal curvature posture when it is maintained in the mother body. The fetal-shaped bending posture is also referred to as a positioning posture, as shown in FIG. 1A, in which the ridge is curved to a side view C-like state, and as shown in FIG. 1B, the foot is presented The M shape opens and the knees almost touch the abdomen. Further, it is placed in a proper safety posture such as lying on a round seat (not shown) and placed in a prone posture, so that most of the time is spent in a prone posture.

Further, according to the low-weight child 101, based on the viewpoint of not giving extra stress, it is possible to apply the idea of the minimum treatment that does not touch the body. Further, even in such a low-weight child 101, an unfolded disposable disposable diaper 1' can be used.

Here, in the prone posture, generally, the target region 1at' of the first abdominal portion 1a' of the male material 11m' of the stuck adhesive tape 11' is located on the ventral side of the low birth weight infant 101, that is, the low birth weight infant 101 Below the body. Therefore, when the disposable diaper is changed, the position of the low-weight baby 101 is changed to the supine position, and the first abdominal surrounding portion 1a' is exposed upward, and the male material 11m' locked in the target region 1at' is released. The disposable diaper 1' was unfolded, and the disposable diaper 1' was taken off from the low birth weight infant 101.

However, it is preferable that the above-mentioned positional change of the disposable diaper 1' is not performed as far as possible from the viewpoint of the minimum treatment. Therefore, the medical institution and the like are eagerly expected to wear from the low-weight child 101 or the like while maintaining the prone posture. The unfolded type diaper that the subject person takes off.

The present invention has been developed in view of the above conventional problems. The purpose of the present invention is to provide a disposable disposable diaper which can be removed from a person wearing the subject in a prone posture.

In order to achieve the above objectives, the main invention is that A disposable type disposable diaper having a longitudinal direction, a lateral direction, and a thickness direction orthogonal to each other, and having a first abdominal portion, a lower portion, and a second abdominal portion which are arranged side by side in the longitudinal direction, and Each of the fastening tapes fixed to the respective end portions in the lateral direction of the second abdominal portion is respectively locked to the first abdominal portion, thereby forming one abdominal opening portion and a pair of leg opening portions. The cutting line for cutting and fixing the portion of the fastening tape in the second abdominal portion is formed in an expanded state of the disposable diaper.

According to the present invention, it is possible to provide an unfolded disposable disposable diaper which can be removed from a person wearing a person in a prone posture.

1‧‧‧paper diapers (disposable disposable diapers)

1HB‧‧‧ belly opening

1HL‧‧‧ leg opening

1a‧‧‧1st abdominal circumference

1am‧‧‧section

1asf‧‧‧1st wing

1asfe‧‧‧ outer edge

1at‧‧‧Target area

1B‧‧‧2nd abdominal circumference

1Bc‧‧‧Central Department

1Be1‧‧‧ outer edge

1Be2‧‧‧ outer edge

1Bsf‧‧‧2nd side flap (end)

1Bsef2‧‧‧Outer end

1Bsfe‧‧‧ outer edge

1Bsfee‧‧‧ outermost edge

1BHB‧‧‧ becomes part of the opening of the abdominal circumference

1BHL‧‧‧ becomes part of the opening of the leg

1Bk‧‧‧ Velcro tape fixing part (the part where the fastening tape is fixed)

1c‧‧‧ cutting line

1c’‧‧‧ cutting line

1c”‧‧‧ cutting line

1c'''‧‧‧ cutting line

1c1‧‧‧Part 1 (1st cut line section)

1c2‧‧‧Part 2 (section 2)

1c3‧‧‧Part 3 (curve part)

1cL‧‧‧linear part

1cB‧‧‧ Curved part

Section 1cB1‧‧‧

Section 1cB2‧‧‧

1cBa‧‧‧Part

1cBB‧‧‧section

1ca‧‧‧ cut line

1m‧‧‧胯 lower part

1msf‧‧‧胯 lower side flap

1sf‧‧‧Fringe

2‧‧‧Top sheet

2e‧‧‧End

3‧‧‧ absorber

3x‧‧‧absorbent core

3rs‧‧‧ core cladding sheet

4‧‧‧ leakproof sheets

5‧‧‧Outer sheets

6‧‧‧Three-dimensional hem sheets (three-dimensional hem forming parts)

6g‧‧‧Three-dimensional ruffles

6j‧‧‧Fixed Department

6k‧‧‧ base end

6r‧‧‧Elastic members for three-dimensional hem

6s‧‧‧ erection

6seLa‧‧‧ end

6seLB‧‧‧ end

6sea‧‧‧ end

6seB‧‧‧ end

11‧‧‧Buckle tape

11a‧‧‧With substrate

11ap‧‧‧ highlight (scratch)

11m‧‧‧ public materials

11me‧‧‧

11-1‧‧‧Left belt

11-1s‧‧‧Non-skin side

11-2‧‧‧ right side belt

11-2e‧‧‧ front end

21‧‧‧ leg elastic members

101‧‧‧Low-weight children (who wear)

C1‧‧‧ center line

C11-1‧‧‧Central location

C11-2‧‧‧Central location

P1c‧‧‧ intersection

PLB‧‧ ‧ boundary location

The beginning of Ps‧‧

Pe‧‧‧ terminal

Fig. 1 is a schematic side view showing a low-weight child 101 in a positioning posture, and Fig. 1B is a B-B arrow direction view in Fig. 1A.

Fig. 2 is a schematic plan view showing the unfolded state of the disposable disposable diaper 1 of the present embodiment.

3A, 3B, and 3C are a cross-sectional view taken along line A-A in Fig. 2, a cross-sectional view taken along line B-B in Fig. 2, and a cross-sectional view taken along line C-C in Fig. 2, respectively.

Fig. 4 is a schematic perspective view of the disposable disposable diaper 1 in a worn state.

In Fig. 5, Fig. 5A is a schematic side view of the low birth weight infant 101 in the prone position before the diaper 1 is removed, and Fig. 5B is a schematic view showing the appearance of the low diaper 101 from the prone posture. Side view.

Fig. 6 is an enlarged view of an important part for explaining the cutting line 1c.

Fig. 7 is an enlarged view of an important part for explaining the cutting line 1c.

Fig. 8 is an enlarged view of an important part for explaining the cutting line 1c' of the first modification.

Fig. 9 is an enlarged view of an important part for explaining the cutting line 1c" of the second modification.

Fig. 10 is an enlarged view of an important part for explaining a cutting line 1c''' of a third modification.

Fig. 11 is an explanatory view showing the state of the stuck state in which the adhesive tape is overlapped.

At least the following matters can be understood from the description of the specification and the drawings.

A disposable type disposable diaper having a longitudinal direction, a lateral direction, and a thickness direction orthogonal to each other, and having a first abdominal portion, a lower portion, and a second abdominal portion which are arranged side by side in the longitudinal direction, and By fixing them separately Each of the hook-and-loop belts at the respective end portions in the lateral direction of the second abdominal portion is locked to the first abdominal portion, and forms one abdominal opening portion and a pair of leg-opening portions: A cutting line for cutting and fixing the portion of the fastening tape in the second abdominal portion is formed in an expanded state of the disposable diaper.

According to the disposable disposable diaper, the disposable diaper can be taken off from the wearer while maintaining the prone position. In detail, it is as follows. First, in the general wearing form of the unfolded type diaper, the second web portion to which the fastening tape is held is placed on the back side of the wearer, and the disposable diaper is worn on the wearer. Therefore, in the prone posture, the second abdominal circumference portion is usually located above the vertical direction. However, in the paper diaper according to the above configuration, the portion of the second abdominal circumference portion in which the fastening tape is fixed by the cutting line can be cut. Therefore, the fastening tape can be removed from the central portion of the second abdominal circumference in the lateral direction while maintaining the prone position, and as a result, the disposable diaper can be unfolded in the same posture. Moreover, the disposable diaper can be taken off from the subject person who is wearing in the prone posture.

Preferably, in the unfolded disposable diaper, the cutting line is formed at each of the two sides in the lateral direction corresponding to each of the fastening tapes, and the cutting lines are formed by the following paths, respectively. The path is a portion that becomes the opening portion of the abdominal circumference, and is a portion that is closer to the inner side in the lateral direction than the portion that fixes the fastening tape in the second abdominal portion, and is a portion that becomes the leg opening portion. Extend it.

According to the disposable disposable diaper, the second abdominal circumference can be cut from the portion which becomes the opening portion of the abdominal circumference or the portion which becomes the opening portion of the leg circumference. The part of the fastening tape is fixed in the part. Therefore, it is possible to quickly cut the above-mentioned portion where the fastening tape is fixed while maintaining the prone posture.

Further, the cutting line passes the position on the inner side in the lateral direction of the portion in which the fastening tape is fixed to the second abdominal portion. Therefore, when the part is cut, it can be completed without cutting the fastening tape. Moreover, the force required for cutting the cutting line can be reduced, and as a result, the external load applied to the wearer can be reduced when the cutting line is cut.

Preferably, in the unfolded disposable diaper, the dicing line has a plurality of through holes penetrating the thickness direction, and the plurality of through holes are arranged side by side in a direction in which the dicing line extends.

According to the disposable disposable diaper, the cutting line has a plurality of through holes, so that the cutting line can be cut with a small force. Thereby, it is possible to reduce the external load that can be applied to the wearer when cutting the cutting line.

Preferably, the unfolded disposable diaper of the unfolded type is The cutting line has a first cutting line portion that is formed to extend inward in a longitudinal direction from a portion that is the opening portion of the abdominal opening; The second cutting line portion is located at an inner side in the longitudinal direction of the first cutting line portion, and is located at the same position as the fastening tape in the longitudinal direction. In a case where the ratio of the length of the through hole to the direction in which the cutting line extends is compared, the ratio of the second cutting line portion to the first cutting line portion is smaller.

According to the disposable disposable diaper, the first cutting line portion The portion is easier to cut than the second cutting line. Therefore, in order to stretch the respective fastening tapes to the outer side in the lateral direction when the disposable diaper is worn by the wearer, it is possible to effectively prevent accidental cutting to the second cutting line portion and to take the disposable diaper from the wearing object. When the person is removed, the cutting can be easily started from the portion that becomes the abdominal opening portion based on the first cutting line portion.

Preferably, the unfolded disposable diaper of the unfolding type has a curved portion having a curved shape, and the curved portion is located further inward than the second cutting line portion in the longitudinal direction. The inner side of the longitudinal direction is displaced toward the outer side in the lateral direction, and when the length of the through hole is proportional to the ratio per unit length of the direction in which the dicing line extends, the ratio of the second dicing line portion is longer than the aforementioned The aforementioned ratio of the curved portion is small.

According to the disposable disposable diaper, the curved portion is more easily cut than the second cut line portion. Therefore, in order to stretch the respective fastening tapes to the outer side in the lateral direction when the disposable diaper is worn by the wearer, it is possible to effectively prevent accidental cutting to the second cutting line portion and to take the disposable diaper from the wearing object. When the person is removed, the curved portion can be cut correctly along the curved target shape.

Preferably, the detachable disposable diaper has a linear portion that extends linearly along the longitudinal direction from a portion that is the opening portion of the abdominal opening; and a curved portion that is curved. The position is located on the inner side in the longitudinal direction of the linear portion, and is advanced toward the inner side in the longitudinal direction. The outer side of the direction is shifted.

According to this disposable disposable diaper, the cutting line has a curved portion as described above. Therefore, the cutting line can be made to reach the outer edge of the horizontal direction of the disposable diaper in a short path. In other words, the path of the cutting line can be extended without reaching the inner side in the longitudinal direction. Thereby, it is possible to effectively prevent a problem that may occur when the path of the cutting line is largely extended toward the inner side in the longitudinal direction, that is, to prevent the wearer's abdomen and the M-shaped open foot from being cut by the positioning posture. Some are caught and difficult to cut.

Preferably, the unfolded disposable diaper of the unfolding type is provided with leg-elastic members along the longitudinal direction at respective positions on both sides in the lateral direction, and the leg-elastic members are used to make the legs The portion surrounding the opening portion is contracted in the longitudinal direction, and the curved portion is divided into a portion on the side of the abdominal opening portion and a portion on the side of the leg opening portion, and the leg elasticity is observed from the thickness direction. In the case of the member, the leg-hole elastic member intersects a portion of the curved portion on the side of the abdominal opening portion.

According to the disposable disposable diaper, the leg-surrounding elastic member intersects the portion on the side of the opening portion of the curved portion among the curved portions. Therefore, the intersection position of the leg-surrounding elastic member and the curved portion is located beside the boundary position between the linear portion and the curved portion. On the other hand, when the curved portion is continuously cut from the linear portion, the extension line of the portion or the position adjacent thereto is easily cut off because the strength of the straight portion is being cut, that is, , if you accidentally cut off the position of the curved part, for this point, the intersection of the elastic member and the curved part of the leg is located. Beside the boundary between the linear part and the curved part. Therefore, in the process of continuously cutting the curved portion from the linear portion, when the cutting position reaches the intersection position beside the boundary position, the cutting force in the longitudinal direction formed in the linear portion is The elastic deformation of the leg-elastic member is absorbed to stop the linear cutting operation in the longitudinal direction. Thereby, the curved portion of the cutting position can be quickly corrected in orbit, and as a result, it can be accurately cut along the curved portion.

Preferably, the disposable diaper of the unfolded type has a plurality of sheets laminated in the thickness direction, and the number of laminated sheets of at least a part of the curved portions is larger than the linear shape. Some of the aforementioned sheets have a small number of laminated sheets.

According to the disposable disposable diaper, at least a part of the curved portions is smaller than the number of sheets of the linear portion. Therefore, this portion is relatively easily cut off. Therefore, in general, it is possible to easily cut a curve which is designed to be more difficult than a straight line, and as a result, the curved portion can be accurately cut along the target shape.

In the unfolded disposable diaper of the unfolded type, the disposable diaper preferably has a resin film extending in the longitudinal direction along the longitudinal direction, and the linear portion is formed on the resin film.

According to the disposable disposable diaper, since the extending direction of the resin film is the longitudinal direction, the resin film is easily cut in the longitudinal direction. Therefore, the linear portion can be easily cut in the longitudinal direction.

Preferably, the unfolded disposable diaper of the unfolded type is Each of the two sides on the both sides in the lateral direction is provided with a sheet-shaped three-dimensional hem forming portion provided along the longitudinal direction, and the three-dimensional hem forming portion has a base end portion and a erect portion that are arranged side by side in the lateral direction. The base end portion cannot be erected in the thickness direction, and the erected portion can be erected toward the skin side in the thickness direction with the base end portion as a fulcrum, and the erect portion is based on the aforementioned action acting on the erect portion The contraction force in the longitudinal direction is contracted in the longitudinal direction, whereby the rising portion is raised toward the skin side in the thickness direction, and the cutting line is formed in the lateral direction from the base end portion and the rising portion. The position of the outside.

According to the disposable disposable diaper, the cutting line is formed at a position outside the base end portion and the rising portion of the three-dimensional hem forming portion in the lateral direction. Therefore, even if the cutting line is cut, the base end portion and the rising portion of the three-dimensional hem forming portion can surely block the excrement held inside the lateral direction. Moreover, by this, it is possible to effectively prevent excrement from leaking out of the disposable diaper.

Preferably, the unfolded disposable diaper has a absorbing core in which a liquid absorbing material that absorbs liquid is laminated in the thickness direction, and the dicing line is formed in the absorption ratio. The core is further located on the outer side in the lateral direction.

According to this disposable disposable diaper, the cutting line is formed at a position where the absorbent core does not exist. Therefore, it is possible to effectively prevent the excrement held by the absorbent core from leaking from the absorbent core as the cutting line is cut, whereby the excretion can be effectively prevented from leaking out of the disposable diaper.

Preferably, the unfolded disposable diaper of the unfolding type has a portion which is the opening portion of the abdominal circumference among the first abdominal surrounding portions, and is located along the longitudinal direction at the same position as the cutting line in the lateral direction. A cutting line is formed.

According to the disposable disposable diaper, by cutting the cutting line formed in the first abdominal surrounding portion, the portion of the first abdominal surrounding portion that becomes the abdominal opening can be folded back, thereby enabling the wearing. The subject reveals a part of the body. Moreover, various treatments such as light treatment can be applied to the exposed portion. Further, when the above-described cutting line is cut, the abdominal opening portion can be softly deformed in the lateral direction. Therefore, even a person wearing a large abdomen can wear it.

===This embodiment ===

Fig. 2 is a schematic plan view showing the unfolded state of the disposable diaper 1 after use in the present embodiment. 3A, 3B, and 3C are a cross-sectional view taken along line A-A in Fig. 2, a cross-sectional view taken along line B-B in Fig. 2, and a cross-sectional view taken along line C-C in Fig. 2, respectively. Further, Fig. 4 is a schematic perspective view of the disposable disposable diaper 1 in a worn state.

This disposable diaper 1 is an unfolded disposable diaper 1 which is worn by the wearer 101 using the fastening tape 11, and is especially suitable for the low-weight baby 101 of 3000 gram or less. Hereinafter, the person who is wearing the subject will be described as a low-weight child 101. However, the person who wears the child may be an infant, a child, or an adult.

In the unfolded state of Fig. 2, the disposable diaper 1 has three directions orthogonal to each other, that is, a longitudinal direction, a lateral direction, and a thickness direction. Here, the vertical The first abdominal circumference 1a, the lower part 1m, and the second abdominal part 1B are arranged in parallel, and in the wearing state of Fig. 4, generally, the first abdominal circumference 1a covers the belly of the low birth weight 101. On the side, the lower part of the lower part covers the gap between the lower body weight 101 and the second abdominal circumference 1B covers the back side of the low birth weight 101. However, depending on the case, the longitudinal direction of the disposable diaper 1 may be reversely worn on the low birth weight 101 as described above. In other words, the disposable diaper 1 is worn so that the first abdominal circumference 1a covers the back side of the low birth weight infant 101 and the second abdominal circumference 1B covers the abdominal side.

Moreover, in the unfolded state of the second drawing, the first abdominal surrounding portion 1a and the second abdominal surrounding portion 1B each protrude from both sides of the crotch portion 1m in the lateral direction, whereby the disposable diaper is viewed from the thickness direction. The outer shape of 1 is a substantially hourglass shape in plan view. In other words, the disposable diaper 1 has an absorbent body 3 that absorbs the excretory liquid, and a thin and thin sheet-like portion that protrudes outward in the lateral direction and the longitudinal direction from the absorbent body 3, but the outer shape of the sheet-like portion is It looks like a general hourglass clock.

Hereinafter, each of the portions 1sf of the sheet-like portions that protrude from the absorber 3 toward both sides in the lateral direction is referred to as "side flap 1sf". Further, the side panel 1sf extends over the first abdominal portion 1a, the lower portion 1m, and the second abdominal portion 1B. Hereinafter, the side flap 1asf located in the first abdominal portion 1a is also referred to as "first". The side flap 1 asf" is also referred to as "the lower flap 1 msf" of the side flap 1 m in the lower part of the crotch, and the side flap 1 Bsf located in the second web 1B is also referred to as the "second flanks 1 Bsf". Further, each of the second side flaps 1Bsf and 1Bsf corresponds to "the end portions in the lateral direction" of the patent application. Also, the following will be one of the thickness directions The side is also called "skin side", and the other side is also called "non-skin side". Incidentally, the schematic plan view of Fig. 2 is a view of the disposable diaper 1 as seen from the skin side.

Here, as shown in the second figure, the fastening tape 11 is provided so as to protrude in the lateral direction at the outer end portion 1Bsef2 of the second side panel 1Bsf in the lateral direction. Further, by fastening each of the fastening tapes 11 to the target region 1at (second drawing) provided on the non-skin side surface of the first abdominal surrounding portion 1a, as shown in Fig. 4, the abdominal opening portion 1HB and one are formed. The disposable diaper 1 is worn on the low-weight child 101 for the leg-opening portions 1HL and 1HL.

The disposable diaper 1 has an absorbent body 3 that absorbs a substantially vertical shape such as urine and the like; a liquid-permeable top sheet 2 that covers the absorbent body 3 from the skin side; and a liquid-impermeable property that covers the absorbent body 3 from the non-skin side. a leakage preventing sheet 4; a substantially hourglass-shaped outer sheet 5 constituting the outer shape of the disposable diaper 1 from the non-skin side; and a pair of three-dimensional hem sheets 6, 6 attached to the top sheet 2 A pair is provided in parallel in the lateral direction, and three-dimensional hem 6g and 6g as leakage preventing walls are formed at the respective end portions of the absorber 3 in the lateral direction.

As shown in FIGS. 3A to 3C, the absorber 3 has an absorbent core 3c and a core-clad sheet 3rs covering substantially the entire outer peripheral surface of the absorbent core 3c. The absorbent core 3c is formed by forming a predetermined liquid absorbing material into a substantially hourglass shape in plan view, and is an example of a predetermined shape (second drawing). The liquid absorbing material such as a liquid absorbent fiber such as pulp fibers or a highly absorbent polymer (hereinafter also referred to as SAP) can be exemplified. Moreover, the core cladding sheet 3rs is made of thin paper or non-woven fabric, etc. Liquid permeable sheet. Further, the shape of the absorptive core 3c is not limited to the above-described substantially hourglass shape in plan view, and may be, for example, a substantially rectangular shape in plan view.

The top sheet 2 is formed of a nonwoven fabric such as a hot air non-woven fabric, and as shown in FIG. 2, FIG. 3A to FIG. 3C, has a planar size such that it protrudes from both sides in the longitudinal direction of the absorber 3 and both sides in the lateral direction. Moreover, the leakage preventing sheet 4 also has a planar size such as to protrude from both sides in the longitudinal direction of the absorber 3 and the both sides in the lateral direction, and is formed of a resin film such as a polyethylene film. Further, the two sheets 2 and 4 are joined to each other by joining or welding, and the portions protruding from the absorbent body 3 in the longitudinal direction and the lateral direction are joined to each other, whereby the absorbent body 3 can be held between the sheets 2 and 4.

As shown in Fig. 2, the exterior sheet 5 is formed of a suitable nonwoven fabric or the like to form an outer shape of the disposable diaper 1. Further, on the skin side surface of the exterior sheet 5, the two sheets 2, 4 and the absorber 3 held between the sheets 2 and 4 are superimposed while being aligned with each other in the horizontal direction. Bonding or welding, etc. are integrated (Figs. 3A to 3C). Further, in this integrated state, the absorber 3 extends over the first abdominal portion 1a, the lower portion 1m, and the second abdominal portion 1B (Fig. 2).

As shown in Fig. 2, the three-dimensional hem sheets 6, 6 (corresponding to the three-dimensional hem forming portions) cover the respective end portions 2e and 2e in the lateral direction of the top sheet 2 from the skin side, and the end portions 2e, A pair is provided corresponding to 2e. Further, each of the sheets 6 and 6 forms three-dimensional hem 6g and 6g which are erected from the skin side surface of the top sheet 2 in the longitudinal direction. That is, each stereo The hem sheet 6 has a belt-shaped base end portion 6k and a erect portion 6s juxtaposed in the lateral direction, and the strip-shaped base end portion 6k is fixed to the top sheet 2 by a heat-fusible adhesive or the like and cannot be erected. In the longitudinal direction, the raised portion 6s can be erected toward the skin side in the thickness direction with the base end portion 6k as a fulcrum. In addition, the rubber wire 6r is fixed to the front end portion in the lateral direction of the rising portion 6s by a hot-melt adhesive or the like in a state of being stretched in the longitudinal direction, and serves as a three-dimensional hem elastic member 6r along the longitudinal direction. Therefore, the rising portion 6s is given a contraction force in the longitudinal direction, and the rising portion 6s is contracted in the longitudinal direction based on the contraction force, whereby the rising portion 6s is formed in a plurality of folds and erected toward the skin side in the thickness direction. As a function of the three-dimensional hem 6g (Fig. 2, Fig. 3B).

Further, as shown in Fig. 2, Fig. 3A, and Fig. 3C, in the longitudinal end portions 6sea and 6seB among the rising portions 6s, the end portions 6sea and 6seB are respectively immersed in the top sheet. The fixing portions 6j and 6j fixed in the state of 2 are formed in a strip shape along the longitudinal direction. That is, at each end portion 6sea, 6seB, between the portion corresponding to the fixing portions 6j, 6j and the top sheet 2, the hot-melt adhesive is applied as a fixing portion 6j, 6j in a strip shape in the longitudinal direction. Each of the end portions 6seLa and 6seLB is fixed by being immersed in the top sheet 2 by the adhesive.

As a material suitable for the three-dimensional hem sheet 6, a suitable nonwoven fabric can be exemplified, and an SMS nonwoven fabric (spunbond/meltblown/spunbond nonwoven fabric) is used here, but it is not limited thereto as long as it has flexibility.

Further, as shown in FIG. 2 and FIG. 3A to FIG. 3C, the three-dimensional hem sheet 6 is extended to the outer side in the lateral direction and is substantially at the same position as the outer edge of the outer sheet 5, and is joined by the end. Or welded in The end edge or its side position is integrated with the outer sheet 5. In this manner, the first side flap 1a and the second side web 1B are formed in the first web 1a and the second web 1B, respectively, in the first web 1a and the 2nd web 1B, respectively. , 1Bsf. On the other hand, in the lower portion 1m of the crotch, the three-dimensional hem sheet 6 and the outer sheet 5 are integrated by joining or welding at the end edge or the side thereof, whereby the inner side is extended from the end edge in the lateral direction. The aforementioned lower crotch side flaps 1msf and 1msf are formed in a predetermined range.

Each of the lower side flaps 1msf and 1msf forms a portion of the leg-opening portion 1HL in a worn state together with a part of the first side flap 1asf and a part of the second side flap 1Bsf, that is, a cover for the low-weight child 101. The part of the leg circumference. Further, in order to form the leg gathers by shrinking the lower side flaps 1msf in the longitudinal direction, the rubber strands 21 are fixed to each of the lower flaps 1msf in the longitudinal direction in the extended state by joining or the like. The leg elastic member 21 is formed along the straight line in the longitudinal direction. Therefore, when the stretched state of the leg-surrounding elastic member 21 is relaxed, the crotch-lower side flap 1msf is contracted in the longitudinal direction to form a plurality of folds, and the folds become leg gathers.

Incidentally, in this example, as shown in Fig. 3B, the leg-surrounding elastic member 21 is interposed between the outer sheet 5 and the three-dimensional hem sheet 6, but is not limited thereto. For example, it may be joined to the non-skin side of the exterior sheet 5, or may be joined to the side of the skin of the three-dimensional hem sheet 6.

Further, in this example, the rubber cord 21 is used as the leg-surrounding elastic member 21, but it is not limited thereto. It is also possible to use a sewing elastic or a stretchable non-woven fabric based on its own elasticity. Cloth, stretch film.

As shown in Fig. 2, the fastening tapes 11, 11 are respectively provided at the respective outer end portions 1Bsfe2, 1Bsfe2 in the lateral direction of the pair of second side panels 1Bsf and 1Bsf. Each of the fastening tapes 11 has a horizontally long non-woven fabric tape-like sheet as the tape substrate 11a, and one end portion of the tape substrate 11a in the lateral direction is fixed to a portion 1Bk of the outer end portion 1Bsfe2 of the second side panel 1Bsf, and The one end portion protrudes outward in the lateral direction from the outer end portion 1Bsfe2 of the second side panel 1Bsf.

Further, a male material 11m having a flat fastener tape is fixed to the skin side surface of the protruding portion, and a plurality of locking projections (not shown) are further provided on the skin side surface of the male material 11m. Therefore, the locking projections of the male material 11m are caught in the target region 1at set on the non-skin side surface of the first abdominal portion 1a, and the fastening tape 11 is locked to the first abdominal surrounding portion 1a. A known material can be used as the flat fastener tape for the public material 11m. For example, a hook-shaped protrusion or a T-shaped person can be suitably used for the locking projection.

As shown in FIG. 2 and FIG. 3A, the target region 1at is set as the non-skin side surface of the first abdominal region 1a, that is, the non-skin side surface of the exterior sheet 5. That is, in this example, the exterior sheet 5 is a non-woven fabric, and the sheet 5 can secure a sufficient locking force between the sheet 5 and the above-mentioned public material 11m. Therefore, the non-skin side of the exterior sheet 5 itself is used as a card of a public material of 11 m. Stop the object. However, it is not limited thereto, and other target tapes for use may be used to form the target area 1at.

Further, when the disposable diaper 1 is worn on the low-weight baby 101, the disposable diaper 1 is used to pass the disposable diaper 1 to the second abdominal portion 1B. The second abdominal surrounding portion 1B is stretched toward both sides in the lateral direction, and the pair of fastening tapes 11 and 11 are respectively locked to the target region 1at of the first abdominal surrounding portion 1a (Fig. 4). Incidentally, in the example of Fig. 2, the tape substrate 11a is further protruded outward in the lateral direction than the male material 11m, and when the fastening tape 11 is stretched to both sides, the protruding portion 11ap is used as The function of grasping the gripping portion 11ap.

In the above, the basic structure of the disposable diaper 1 has been described. However, in the present embodiment, the second flank of the second abdominal portion 1B is used for the purpose of removing the disposable diaper 1 from the low-weight infant 101 in the prone posture of FIG. The sheets 1Bsf and 1Bsf, each of the cutting lines 1c and 1c are formed in the unfolded state of the disposable diaper 1 as shown in Fig. 2.

Fig. 6 is an enlarged view of an important part for explaining the cutting line 1c. As shown in FIG. 6, the cutting line 1c is formed by a perforation which cuts a portion 1Bk of the tape substrate 11a in which the fastening tape 11 is fixed in the second web portion 1B (in FIG. 6 The portion 1Bk indicated by hatching is hereinafter also referred to as a fastening tape fixing portion 1Bk). Specifically, the cutting line 1c is formed in each of the second side flaps 1Bsf corresponding to each of the fastening tapes 11. Further, each of the cutting lines 1c is formed by a path 1BHB which becomes the abdominal opening 1HB from among the second abdominal surrounding portions 1B, and is located on the inner side in the lateral direction than the fastening tape fixing portion 1Bk. The position is extended toward the portion 1BHL which becomes the leg-opening portion 1HL among the second abdominal trunk portions 1B.

Therefore, the disposable diaper 1 can be quickly taken off from the low-weight infant 101 as in the prone position as shown in Fig. 5A as shown in Fig. 5B. That is, such as As shown in Fig. 5A, the disposable diaper 1 is usually worn on the low-weight child 101 so that the second abdominal portion 1B holding the fastening tape 11 is placed on the back side of the low-weight baby 101. Therefore, in the prone posture, the second abdominal circumference 1B is located above the vertical direction. Here, according to the disposable diaper 1, the fastening tape fixing portion 1Bk of the second abdominal portion 1B can be cut by the cutting line 1c. (Fig. 5B). Thereby, the fastening tape 11 can be detached from the center part 1Bc of the horizontal direction of the 2nd abdominal part 1B (FIG. 6). As a result, the public material 11m of the fastening tape 11 is latched in the 1st abdominal part 1a. In the state of the first diaper portion 1a and the second abdominal portion 1B, the disposable diaper 1 can be unfolded. Thereby, the disposable diaper 1 can be taken off from the low-weight infant 101 in the prone position.

In addition, as described above, the cutting line 1c passes through the inner side of the second web portion 1B in the lateral direction of the fastening tape fixing portion 1Bk. Therefore, when the fixing portion 1Bk is cut, it is not necessary to cut all of the fastening tapes 11, thereby reducing the force required to cut the cutting line 1c. Moreover, the result can be reduced to the external load that can be imparted to the low-weight child 101 at the time of cutting, which is an idea of applying a minimum treatment.

Incidentally, the perforations of the cutting line 1c are a plurality of linear slits (corresponding to the through-holes, and include a sixth diagram, and schematically show an entire view of the entire figure showing the perforations). In other words, the linear slits (not shown) penetrating the second side panel 1Bsf in the thickness direction are arranged in parallel in the direction in which the cutting line 1c extends. Further, the length of the slit and the pitch of the slit are appropriately set in consideration of the cutting property, etc., and the specific example is that the length of the slit can be 1 mm to 3 mm, and the interval between the slit and the slit (that is, in the slit) The length of the seamless portion between each other can be exemplified 0.5mm~2mm. Incidentally, the pitch of the slits can also be said to be the total length of the slit and the total value of the intervals.

Hereinafter, the cutting line 1c will be described in further detail.

As shown in Fig. 6, the cutting line 1c formed in one of the second side panels 1Bsf and the cutting line 1c formed in the other second side panel 1Bsf are lined with each other with respect to the center line C1 of the paper diaper 1 in the lateral direction. Formed as line symmetry. Further, each of the cutting lines 1c has a substantially J-shape having a linear portion 1cL along the longitudinal direction and a curved portion 1cB having a curved shape.

The linear portion 1cL is a portion 1BHB which becomes the abdominal opening portion 1HB among the second abdominal surrounding portions 1B, that is, the longitudinal end outer edge 1Be1 of the second abdominal surrounding portion 1B as a starting point, along a straight line parallel to the longitudinal direction The inner side is advanced in the longitudinal direction, and then reaches the same position as the position of the fastening tape 11 in the longitudinal direction, or a position on the inner side exceeding the position. Further, at this position, the curved portion 1cB is connected, and the curved portion 1cB extends further inward in the longitudinal direction. In detail, the curved portion 1cB advances inward in the longitudinal direction, is displaced outward in the lateral direction by a predetermined radius of curvature, and finally reaches the leg-opening portion 1HL and the portion 1BHL in the second abdominal portion 1B. That is, the outer end edge 1Be2 of the second abdominal trunk portion 1B in the lateral direction.

Further, according to the path of the cutting line 1c, the cutting line 1c completely surrounds the fastening tape fixing portion 1Bk from the inner side in the lateral direction. Therefore, when the cutting line 1c is cut, each of the fastening tapes 11 can be detached from the center portion 1Bc of the second abdominal portion 1B in the lateral direction from the fastening tape fixing portion 1Bk.

Further, as long as the curved portion 1cB as described above is provided, the cutting line 1c can reach the outer edge 1Be2 in the lateral direction of the second abdominal portion 1B in a short path. In other words, the path of the cutting line 1c can be extended without reaching the inner side in the longitudinal direction. Further, by this, it is possible to effectively prevent a problem caused when the path of the cutting line 1c is greatly extended toward the inner side in the longitudinal direction. For example, when the path reaches the first side flap 1asf (second drawing), since a part of the cutting line 1c is The abdomen of the low-weight child 101 in the positioning posture and the M-shaped open foot are caught and become difficult to cut.

Incidentally, in the example of Fig. 6, the cutting line 1c is completely housed in the second side flap 1Bsf, but is not limited thereto. That is, a part of the cutting line 1c may also protrude from the lower side flap 1 msf, as the case may be. However, if the amount of protrusion is too large, it may become easily caught between the abdomen of the low-weight baby 101 and the M-shaped foot, or it may be difficult to cut the above-described cutting line 1c because the cutting length becomes long. Bad condition.

Further, in this example, a plurality of sheets 4, 5, and 6 are present at the position where the linear portion 1cL is formed. Specifically, the three-dimensional pleated sheet 6, the leakage preventing sheet 4, and the exterior sheet 5 are present from the skin side in the thickness direction, and the number of laminated sheets of the sheet is three. Therefore, in the linear portion 1cL, perforations are formed through the three sheets 4, 5, and 6 which are laminated.

On the other hand, as described above, the formation position of the curved portion 1cB is shifted outward in the lateral direction as it proceeds inward in the longitudinal direction. Therefore, the number of laminated sheets of the sheet changes during the advancement from one end of the curved portion 1cB toward the other end. That is, as shown in the left half of Fig. 6, a predetermined range continuous with the linear portion 1cL among the curved portions 1cB In the portion 1cB1, the number of laminated sheets of the sheet is three in the same manner as the linear portion 1cL, but the portion 1cB2 adjacent to the inner side in the longitudinal direction of the portion 1cB1 of the predetermined range among the curved portions 1cB is leak-proof. 4 does not exist, and thus a two-piece structure of the three-dimensional hem sheet 6 and the exterior sheet 5 is formed. Therefore, in the former portion 1cB1, perforations are formed through the three sheets 4, 5, and 6, and in the latter portion 1cB2, perforations are formed through the two sheets 5, 6.

Further, even in the portion 1cB2 among the curved portions 1cB, when the number of laminated sheets of the sheet becomes small, the portion 1cB2 is relatively easily cut. Therefore, it is easy to cut a curve which is generally more difficult than a straight line, and as a result, the curved portion 1cB can be accurately cut along the target shape of the curve.

In this example, as shown in FIG. 6, the cutting line 1c is formed in the second side panel 1Bsf. Therefore, the cutting line 1c is formed on the outer side of the absorber 3 in the lateral direction. Moreover, referring to the sixth figure, the cutting line 1c is formed at a position outside the base end portion 6k and the rising portion 6s of the three-dimensional hem sheet 6 in the lateral direction.

Therefore, even if the cutting line 1c is cut, the base end portion 6k and the rising portion 6s of the absorbent body 3 and the three-dimensional hem sheet 6 are not affected, and are maintained in a healthy state. Moreover, by this, the excretion held by the absorber 3 or the rising portion 6s is effectively prevented from leaking from the disposable diaper 1 as the cutting line 1c is cut.

Incidentally, referring to the positional relationship with the top sheet 2, the cutting line 1c is formed at a position outside the sheet 2 in the lateral direction, that is, the top sheet 2 is not present at the position of the cutting line 1c. because Thereby, the number of sheets of the sheet at the position of the cutting line 1c can be reduced, which contributes to the ease of cutting of the cutting line 1c.

In view of the fact that the cutting line 1c is more easily cut, the sheet 4 is preferably arranged in the longitudinal direction in the direction in which the resin film constituting the leakage preventing sheet 4 of Fig. 6 is formed in the longitudinal direction. . In other words, the direction in which the general resin film extends is aligned with the resin, and it is easy to cut along the extending direction. Therefore, as long as the extending direction is along the longitudinal direction, the leakage preventing sheet 4 can be easily cut in the longitudinal direction, and as a result, the linear portion 1cL in which the sheet 4 is located can be accurately cut in the longitudinal direction.

Further, when the curved portion 1cB is cut continuously from the linear portion 1cL of the cutting line 1c as in Fig. 6, the strength of the straight portion 1cL is cut, and it is easy to accidentally cut the portion 1cL. The extension line or the position next to it, that is, the position where the deviation from the curved portion 1cB is accidentally cut off, for this point, the following work is done in this example.

First, the leg-surrounding elastic member 21 is provided beside the cutting line 1c, but the leg-shaped elastic member 21 and the curved portion 1cB of the cutting line 1c are intersected at a predetermined intersecting position P1c when viewed from the thickness direction. . Specifically, as shown in the right half of Fig. 6, when the curved portion 1cB is divided into a portion 1cBa on the side of the abdominal opening 1HB and a portion 1cBB on the side of the leg opening 1HL, the leg elastic member The intersection position P1c of 21 includes the portion 1cBa on the side of the abdominal opening 1HB of the former, and therefore the intersection P1c is located at the boundary position PLB which is relatively close to the linear portion 1cL and the curved portion 1cB.

Therefore, in the process of cutting the curved portion 1cB continuously from the linear portion 1cL of the cutting line 1c, if the position during the cutting is at the intersection P1c next to the boundary position PLB, it is formed in the linear portion 1cL. The hard line cut in the longitudinal direction is absorbed by the elastic deformation of the leg-surrounding elastic member 21, and the linear cutting operation in the longitudinal direction is stopped. Thereby, the curved portion 1cB can be quickly orbitally corrected, and as a result, it can be correctly cut along the curved portion 1cB.

Further, in the example of Fig. 7, the ease of cutting of the cutting line 1c differs depending on the position in the longitudinal direction by the operation of the perforations. For example, assuming that the cutting line 1c is divided into three portions 1c1, 1c2, and 1c3 in the longitudinal direction, the ease of cutting is set corresponding to each of the portions 1c1, 1c2, and 1c3. In detail, the first portion 1c1 (corresponding to the first cutting line portion) which is one portion 1c1 among the three portions 1c1, 1c2, and 1c3 is located as a portion including the abdominal opening portion 1HB among the second abdominal portion 1B. The position of 1BHB, but the first part 1c1 is designed as a perforation that is easy to cut. Further, the second portion 1c2 (corresponding to the second cutting line portion) of the other portion 1c2 is located at the same position as the fastening tape fixing portion 1Bk in the longitudinal direction, and the second portion 1c2 is designed to be The first part 1c1 is more difficult to cut the perforations. Further, the third portion 1c3 as the remaining one portion 1c3 is the curved portion 1cB, but the portion 1c3 is designed as a perforation that is easily cut in the same manner as the first portion 1c1.

In this way, based on the difficult-to-cut perforations of the second portion 1c2, it is possible to effectively prevent the disposable diaper 1 from being worn in the low-weight child 101. When the respective fastening tapes 11 and 11 are respectively stretched outward in the lateral direction, the second portion 1c2 is accidentally cut. When the diaper is removed from the low-weight baby 101, the perforation which is easily cut by the first portion 1c1 can be easily cut from the portion 1BHB which is the abdominal opening 1HB, and as the third portion 1c3. The curved portion 1cB is also based on the perforation which is easily cut, and the portion 1cB can be cut correctly along the curved shape of the target.

Incidentally, when the perforation which is easy to cut and the perforation which is difficult to cut are set, the length of the slit provided in the perforation can be changed, which is the case in this example. That is, in this example, by maintaining the spacing of the slits constant and making the length of the slits different, the ratio of the length of the slit to the unit length of the direction in which the cutting line 1c extends is in the above-mentioned portion 1c2 and the above-mentioned portions 1c1, 1c3. There are differences from each other, and in general, the ratio is large and it is easy to cut, and the ratio is small and it is difficult to cut. Therefore, in this example, the ratio of the second portion 1c2 is designed to be smaller than the ratio of the ratio of the first portion 1c1 to the third portion 1c3.

Moreover, in the example of the second figure, the first side flaps 1asf and 1asf of the first abdominal surrounding portion 1a are also formed with the cutting line 1ca by the perforations. In other words, the first side panel 1 asf is formed with a cutting line 1ca extending inward in the longitudinal direction from the outer edge 1asfe in the longitudinal direction. Further, the position in which the cutting line 1ca is formed in the lateral direction is aligned with the position at which the cutting line 1c of the outer edge 1Bsfe of the second side panel 1Bsf in the longitudinal direction is formed.

Therefore, the cutting line 1ca and 1ca can be spaced apart from each other by a wide interval in the first abdominal surrounding portion 1a. Thereby, the cutting lines 1ca are cut off, After the perforation of 1ca, as long as the portion 1am between the cutting lines 1ca and 1ca is folded back in the first abdominal circumference 1a, the abdomen of the low-weight infant 101 can be exposed, which requires proper treatment such as light treatment for the abdomen. effective. In addition, after the cutting lines 1ca and 1ca are cut, the respective cutting lines 1ca and 1ca can be easily opened in the lateral direction, so that the first abdominal surrounding portion 1a can be softly deformed in the lateral direction. Therefore, even the low-weight infant 101 with a large abdomen can be worn.

Fig. 8 is an explanatory view of a cutting line 1c' of the first modification. In the above-described embodiment, as shown in Fig. 6, the number of laminated sheets of the sheet is changed from three sheets to two at the position of the cutting line 1c. However, in the first modification, the sheet is laminated over the entire length of the cutting line 1c'. The number of pieces is fixed. In other words, as shown in Fig. 8, the position of the cutting line 1c' of the first modification is shifted outward in the lateral direction from the cutting line 1c of the embodiment of the sixth embodiment, thereby making the cutting line The 1c' is over the entire length of the outer side of the leakage preventing sheet 4 in the lateral direction. Moreover, only two pieces of the three-dimensional hem sheet 6 and the exterior sheet 5 are present at this position. Therefore, the perforations of the dicing line 1c' are formed so that the two sheets 5 and 6 are penetrated in the thickness direction, and the dicing line 1c' can be cut with good severability due to the small number of laminated sheets. It is to be noted that the same reference numerals are given to the same components, and the description thereof will be omitted.

Fig. 9 is an explanatory view of a cutting line 1c" according to a second modification. In the above-described embodiment and the first modification, as shown in Figs. 6 and 8, the cutting lines 1c, 1c' have a linear portion 1cL and Curved portion 1cB, but in the second modification, the cutting line 1c" does not have a curved portion 1cB has only the linear portion 1cL. In the second modification, the cutting line 1c" is further displaced outward in the lateral direction than the first modification, whereby the adhesive can be cut only by a linear portion 1cL along the longitudinal direction. Further, according to the cutting line 1c", since the linear portion 1cL is provided, it is easy to cut, and as a result, the cutting line 1c" is not largely deviated from the position and can be accurately cut. At the position of the cutting line 1c", only two sheets of the three-dimensional hem sheet 6 and the outer sheet 5 are present. Therefore, the perforations of the cutting line 1c" are formed to penetrate the two sheets 5, 6 in the thickness direction.

Fig. 10 is an explanatory view of a cutting line 1c''' of a third modification. In the above-described embodiment (Fig. 6), the first modified example (Fig. 8), and the second modified example (Fig. 9), any of the cutting lines 1c, 1c', and 1c" is the second abdominal portion 1B. The portion 1BHB which is the abdominal opening 1HB extends in a so-called substantially J-shape or straight line shape from the portion 1BHL which is the leg-opening portion 1HL. However, the main difference of the cutting line 1c''' of the third modification is different. That is, the path is not taken. That is, as shown in Fig. 10, the cutting line 1c''' is formed in a substantially U-shape that surrounds the fastening tape fixing portion 1Bk from three sides. Moreover, the cutting line 1c"' The outermost edge 1Bsfee in the lateral direction of the second side panel 1Bsf of the second abdominal portion 1B is located at the beginning end Ps, and the fastening tape fixing portion 1Bk extends from the inner peripheral side of the substantially U-shaped path, and finally The start end Ps similarly reaches the outermost edge 1Bsfee of the second side flap 1Bsf in the lateral direction, and the position Pe reaching the outermost edge 1Bsfee is the terminal Pe of the cut line 1c''. In addition, the other points are substantially the same as those of the above-described embodiment, and therefore the same configuration is added to the same The description is omitted.

Further, at the outset, the paper diaper 1 of the present embodiment is applied to a low-weight baby 101 of 3000 gram or less, and it is easier to solve the above-described problem of the positioning position and minimum disposal of the disposable diaper 1 in consideration of the above. The disposable diaper 1 is more effective in the case of forming a positioning posture or more requiring minimal disposal. Moreover, this situation is when the weight is lighter.

Therefore, the disposable diaper 1 of the present embodiment is preferably used in a low birth weight infant of 500 g or more and less than 2500 g, and more preferably a very low birth weight infant of 1000 g or more and less than 1,500 g, and further More preferably used in ultra low birth weight infants up to 1000 grams.

Further, since the disposable diaper 1 of the present embodiment is specially used for the low-weight baby 101, it is formed to be smaller than the existing disposable diaper 1 for newborns. For example, the length of the disposable diaper product for newborns is 365 mm, and the circumference L1HB of the abdominal opening 1HB in the wearing state is 304 mm, and the length L1 (Fig. 2) of the disposable diaper 1 of the present embodiment is 210 mm. ~330 mm, and the circumference L1HB of the abdominal opening 1HB in the wearing state is 160 to 295 mm.

Further, the product length L1 is measured, for example, in the unfolded state of the disposable diaper 1. In other words, as shown in Fig. 2, in the unfolded state, the disposable diaper 1 is extended in the longitudinal direction to the following state, and first, the respective fastening tapes 11 and 11 are released from the locking of the target region 1at, and the first abdominal surrounding portion 1a is The lower portion 1m and the second abdominal portion 1B are in a state of being juxtaposed in the longitudinal direction, and the shrinkage of the three-dimensional hem sheet 6 due to the three-dimensional hem elastic member 6r and The contraction caused by the lower side flaps 1msf and 1msf of the leg-hole elastic members 21, 21 is eliminated as it is. Then, L1 of the maximum dimension in the longitudinal direction of the stretched state is measured, and the measured value is the product length L1.

On the other hand, the pair of fastening tapes 11 and 11 are measured in the locked state in which the fastening tapes are overlapped with respect to the circumferential length L1HB of the abdominal opening 1HB. Figure 11 is an explanatory diagram. In the following description, the fastening tape 11 of the second side flap 1Bsf located on the left side in Fig. 11 is referred to as "left side belt 11-1", and the fastening strip of the second side flap 1Bsf located on the right side is similarly 11 is called "11-2 on the right side".

First, as a preparation for measurement, the two fastening tapes 11-1 and 11-2 are in a locked state in which the fastening tapes are overlapped. That is, as shown in Fig. 11, after the male material 11m of the left side belt 11-1 is locked in the target area 1at of the first abdominal surrounding portion 1a, the male material 11m of the right side belt 11-2 is locked to the left side belt. 11-1's non-skin side 11-1s. However, at this time, the alignment is performed such that the center positions C11-1 and C11-2 of the left side belt 11-1 and the right side belt 11-2 in the longitudinal direction coincide with each other, and the front end 11- of the right side belt 11-2 is provided. 2e coincides with the end 11me of the 11m base end side of the male material of the left side belt 11-1. Further, the fastening tape is brought into a locked state in an overlapping state.

Then, the abdominal opening portion 1HB formed based on the locked state is extended until the contraction generated by the abdominal elastic member 21 is eliminated. Then, in the extended state, the circumferential length L1HB of the abdominal opening 1HB is measured, thereby obtaining the circumferential length L1HB.

Incidentally, as an example of the product length L1 of the low birth weight infant and the circumferential length L1HB of the abdominal opening 1HB, respectively, 310 mm and 273.5 mm, and an example of the product length L1 of the extremely low birth weight infant and the circumferential length L1HB of the abdominal opening 1HB are 270 mm and 220 mm, respectively, and the length L1 of the product of the ultra-low birth weight infant is An example of the circumferential length L1HB of the abdominal opening 1HB is 230 mm and 219 mm, respectively.

===Other implementations ===

The embodiments of the present invention have been described above, but the above embodiments are intended to facilitate the understanding of the present invention and are not intended to limit the invention. Further, the present invention may be modified or improved as long as it does not depart from the gist of the invention, and the present invention naturally includes equivalents thereof. For example, a modification as described below can be made.

In the above embodiment, the perforations are exemplified as an example of the dicing lines 1c, 1c', 1c", and 1c"', but are not limited thereto. That is, as long as the cutting lines 1c, 1c', 1c", 1c''' is easier to cut than the surrounding part, and it is also possible to use it outside the perforation. For example, instead of a linear slit extending in a direction in which the cutting lines 1c, 1c', 1c", and 1c''' extend, an arc-shaped or wavy slit may be used, or the planar shape of the through-hole may be circular or Further, an elliptical shape or the like may be used. Further, a plurality of through holes may be arranged side by side. For example, a plurality of concave portions may be formed by press or press welding in the thickness direction, and the cut lines 1c, 1c', 1c", 1c may be formed by the concave portions. ''' can also

1a‧‧‧1st abdominal circumference

1am‧‧‧section

1asf(1sf)‧‧‧1st side flap

1asfe‧‧‧ outer edge

1at‧‧‧Target area

1b‧‧‧2nd abdominal circumference

1bk‧‧‧Buckle strap fixing

1bsf(1sf)‧‧‧2nd wing (end)

1bsfe‧‧‧ outer edge

1bsfe2‧‧‧outer end

1c‧‧‧ cutting line

1ca‧‧‧ cut line

1m‧‧‧胯 lower part

1msf(1sf)‧‧‧胯 lower wing

2‧‧‧Top sheet

2e‧‧‧End

4‧‧‧ leakproof sheets

5‧‧‧Outer sheets

6‧‧‧Three-dimensional hem sheets (three-dimensional hem forming parts)

6g‧‧‧Three-dimensional ruffles

6j‧‧‧Fixed Department

6k‧‧‧ base end

6r‧‧‧Elastic members for three-dimensional hem

6s‧‧‧ erection

6sea‧‧‧ end

6seb‧‧‧ end

11‧‧‧Buckle tape

11a‧‧‧With substrate

11ap‧‧‧ highlight (scratch)

11m‧‧‧ public materials

21‧‧‧ leg elastic members

L1‧‧‧ product length

Claims (12)

A disposable type disposable diaper having a longitudinal direction, a lateral direction, and a thickness direction orthogonal to each other, and having a first abdominal portion, a lower portion, and a second abdominal portion which are arranged side by side in the longitudinal direction, and Each of the fastening tapes fixed to the respective end portions in the lateral direction of the second abdominal portion is respectively locked to the first abdominal portion, thereby forming one abdominal opening portion and a pair of leg opening portions. The cutting line for cutting and fixing the portion of the fastening tape in the second abdominal portion is formed in an expanded state of the disposable diaper. The disposable diaper of the unfolded type according to the first aspect of the invention, wherein the cutting line is formed at each of the two sides in the lateral direction corresponding to the respective fastening tapes, wherein the cutting lines are respectively a path formed by the position which becomes the inside of the opening of the abdominal circumference, and which is located in the lateral direction of the portion of the second abdominal portion that is fixed to the above-mentioned fastening tape The part of the leg opening is extended. The disposable diaper of the unfolding type according to claim 1 or 2, wherein the cutting line has a plurality of through holes penetrating the thickness direction, and the plurality of through holes extend along the cutting line The directions are side by side. Disposable disposable diapers, such as the unfolded type of application of the third paragraph of the patent application, wherein The cutting line has a first cutting line portion formed to extend inward in a longitudinal direction from a portion that becomes the abdominal opening portion, and a second cutting line portion that is located above the first cutting line portion. a position at the inner side in the longitudinal direction and a position at the same position as the above-mentioned fastening tape in the longitudinal direction, in a case where the ratio of the length of the through hole to the unit length in the direction in which the cutting line extends is compared, the second cutting line The aforementioned ratio of the portion is smaller than the aforementioned ratio of the first cutting line portion. A disposable disposable diaper according to the fourth aspect of the invention, wherein the cutting line has a curved portion having a curved shape, and the curved portion is located further in the longitudinal direction than the second cutting line portion. The position of the inner side is shifted toward the outer side in the lateral direction as it advances toward the inner side in the longitudinal direction, and the second cutting line is formed when the ratio of the length of the through hole to the direction in which the cutting line extends is compared. The aforementioned ratio of the portion is smaller than the aforementioned ratio of the aforementioned curved portion. The disposable type disposable diaper according to any one of claims 1 to 3, wherein the cutting line has a linear portion which is along a longitudinal direction from a portion which becomes the opening portion of the abdominal circumference The curved portion extending in a straight line is located at an inner side in the longitudinal direction of the linear portion, and is displaced outward in the lateral direction as it advances toward the inner side in the longitudinal direction. The disposable diaper of the unfolding type according to the sixth aspect of the invention, wherein at each of the two sides of the lateral direction, leg elastic members are respectively disposed along the longitudinal direction, and the leg elastic members are used The portion which is the leg-opening portion is contracted in the longitudinal direction, and the curved portion is divided into a portion on the side of the abdominal opening and a portion on the side of the leg-opening, and is in the thickness direction. In the case of the leg elastic member, the leg elastic member intersects with a portion of the curved portion on the side of the belly opening. The disposable diaper of the unfolded type according to claim 6 or 7, wherein the disposable diaper has a plurality of sheets laminated in the thickness direction, and at least a part of the sheets of the curved portion are laminated The number of sheets is smaller than the number of laminated sheets of the above-mentioned sheets in the linear portion. The disposable diaper of the unfolded type according to any one of claims 6 to 8, wherein the disposable diaper has a resin film extending in a direction along the longitudinal direction at the time of manufacture, and the linear portion is formed in the linear portion The aforementioned resin film. A disposable disposable diaper according to any one of claims 1 to 9, wherein each of the two sides of the lateral direction is provided with a sheet-like shape along the longitudinal direction. a three-dimensional hem forming portion, the three-dimensional hem forming portion having a base end side-by-side in the lateral direction And the erecting portion, the base end portion cannot be erected in the thickness direction, and the erect portion can be erected toward the skin side in the thickness direction by using the base end portion as a fulcrum, and the erect portion is based on the vertical direction The contraction force in the longitudinal direction of the protruding portion is contracted in the longitudinal direction, whereby the rising portion is raised toward the skin side in the thickness direction, and the cutting line is formed closer to the base end portion and the rising portion. The position of the outer side in the lateral direction. The disposable diaper of the unfolded type according to any one of claims 1 to 10, wherein the liquid absorbing material that absorbs the liquid is laminated in the thickness direction at the center in the lateral direction. In the absorbent core, the cutting line is formed on the outer side in the lateral direction of the absorbent core. The disposable disposable diaper according to any one of the first aspect of the invention, wherein the portion of the first abdominal circumference portion that is the opening portion of the abdominal opening is in the lateral direction and the aforementioned At the same position of the cutting line, a cutting line is formed along the longitudinal direction.