BR112017000728B1 - absorbent article - Google Patents

Abstract

Provided is an absorbent article (1) configured so that the absorbent article (1) has a longitudinal direction, a transverse direction, and a thickness direction that are perpendicular to each other, the absorbent article (1) further having a first section waistband (1a), a crotch section (1m), and a second waist section (1b), which are matched close together in the longitudinal direction, and a fastening tape (11) affixed to each of the opposite ends of the second waist section (1b) in the transverse direction being engaged with the first waist section (1a) to form a single waist opening (1HB) and a pair of leg openings (1HL), and thus enabling the absorbent article (1) to be used as a tape-type disposable diaper. In an expanded state of the absorbent article (1), cutting lines (1c) along which protrusions of at least the fastening tapes (11) are cut are being formed, the protrusions projecting further outwards in the transverse direction than in the second waist section (1b). Cutting the projections along the cut lines (1c) enables the absorbent article (1) to be used as an absorbent pad having no projections.

Description

[Technical Field]

[0001] The present invention relates to absorbent articles.

[Background]

[0002] Conventionally, tape-type disposable diapers have been known as an example of absorbent articles. The aforementioned diapers each include a longitudinal direction, a lateral direction and a thickness direction that are orthogonal to each other. Furthermore, said diapers include a first waist part, a crotch part and a second waist part, which are harmonized in this order in the longitudinal direction. By attaching the fastening tapes which are each provided on respective end parts of the second waist part in the lateral direction, to a target region of the first waist part, a waist opening and a pair of openings encircling the legs are formed, and the diaper being worn by a target user.

[0003] Furthermore, absorbent pads have been known as another example of absorbent articles (LPT 1). Broadly speaking, said absorbent pads have a constitution that fastening tapes of at least the second waist part are not provided in the aforementioned tape-type disposable diapers. Since fastening tapes are not provided, absorbent pads are often used in combination with diapers. However, the simple use of absorbent pads may be applicable in some cases.

[0004] However, even if the standard use can be the combination of use with the diaper, or the single and simple use, the fastening tapes do not protrude externally from the second waist part in the lateral direction according to said padding, and thus properties of insertion into a narrow space or similar are excellent. Accordingly, said padding may be readily matched to a position intended for matching intended as an inner side of the disposable diaper. [Citation List] [Patent Literature] [LPT 1]

[0005] Japanese Patent No. 4827704

[Invention Summary] [Technical problem]

[0006] However, there are low birth weight children whose birth weight is 3000 grams or less. Some of the aforementioned low birth weight children, after birth, spend most of their time in a stooped posture like a fetus, the posture being held by children in their mother's womb. This fetal hunched posture is also referred to as a standing posture. In this posture, while a child's back curves into a C-shape as seen from the side as shown in Figure 1A, the child's legs spread out like an M with the child's knees being curved almost to his stomach as shown in Figure 1B. A suitable safety action such as seating a child on a round pad (not shown) is taken, and then the child being placed in a prone position.

[0007] In some cases, in terms of not providing extra stress, a concept of minimal handling that it is preferable not to touch the patient's body may be applied depending on underweight children 101. For said underweight children 101, disposable diapers 1' tape type are used. However, in terms of minimal handling, the simple use of 1p' absorbent pads (Figure 1C) may be applicable.

[0008] For example, as illustrated in Figure 1C, pads can be changed only by putting on or pulling the absorbent pad 1p' with respect to low weight children 101. Thus, when compared to the disposable diaper 1' which requires an fixing the fastening straps 11', the quilts are effective in terms of minimal effort. Consequently, 1p' absorbent pads are only used in an acute phase that particularly requires minimal handling.

[0009] However, in terms of leakage prevention properties, the disposable diaper 1' is more effective, and thus the use of the absorbent pad 1p' is limited to a very short period such as a few days in an acute phase, as a result. , the fact is that the amount of padding 1p' used is less than the amount of disposable diaper 1' used.

[0010] However, in medical institutions such as NICU (neonatal intensive care unit), the disposable diaper 1' and the absorbent pad 1p' are bought and stored by their discrimination for each low weight child 101 in terms of hygiene control and others. In other words, a plurality of, such as ten diapers 1' and quilts 1p' included in a package are not usually shared with a plurality of underweight children 101, and for example, all of the quilts 1p' in a package are prepared for a child with low birth weight 101.

[0011] However, as set out above, since the amount of absorbent pads is less than that of disposable diapers 1', if padding 1p' for a pack is prepared for each low weight child 101, padding 1p' will not will be used and remaining 1p' quilted will be discarded. This could become a cause of an increase in medical expenses.

[0012] Here, in this sense, if an absorbent article, which can be used as both the disposable diaper 1' and the absorbent pad 1p', exists, the aforementioned problems can be solved. For that reason, provision of said absorbent article has been eagerly desired at least in the NICU.

[0013] The present invention was conceived in view of conventional problems such as those described above and an object thereof is to provide an absorbent article that can be used as both a tape-type disposable diaper and an absorbent pad.

[Problem Solution]

[0014] An aspect of the invention to achieve the above advantage is, an absorbent article that includes a longitudinal direction, a lateral direction and a thickness direction that are orthogonal to each other, the absorbent article including: - a first waist part, a between legs and a second waist part, which are harmonized in this order in the longitudinal direction; and; - fastening tapes which are respectively attached to each of the end parts of the second waist part in the lateral direction; - the absorbent article being able to be used as a tape-like disposable diaper by attaching the fastening tapes respectively to the first waist part to form a waist opening and a pair of openings encircling the legs; - cut lines being formed in an unfolded state of the absorbent article, the cut lines each being used to cut at least a projecting portion of each of the fastening tapes, the projecting portion projecting externally from the second waist part in the lateral direction; - the absorbent article being able to be used as an absorbent pad without the protruding portion by cutting the protruding portion at each of the cut lines.

[0015] Characteristics of the present invention other than those above will become clear by reading the detailed description of the same, with reference to the attached drawings, presented as an example and not a limitation.

[Advantageous Effects of Invention]

[0016] In accordance with the present invention, it will be possible to provide an absorbent article that can be used both as a tape-type disposable diaper and as an absorbent pad. [Brief Description of the Drawings] - Figure 1A is a schematic side view of a low weight child 101 in the positioned posture, - Figure 1B is a view along the arrows B-B in Figure 1A: - Figure 1C is a side view schematic showing an exchange state of the absorbent pad 1p', - Figure 2 is a schematic plan view of an absorbent article 1 of the present configuration, which is in an unfolded state; - Figures 3A, 3B and 3C are cross-sectional views of Figure 2 respectively taken along line A-A, line B-B and line C-C; - Figure 4 is a schematic perspective view of a disposable diaper 1 in a worn state; - Figure 5 is a schematic plan view of the absorbent article 1 in a state in which the cut lines 1c, 1c are cut to remove the fastening tapes 11, 11; - Figure 6 is an enlarged view of the main parts to explain the cut lines 1c; - Figure 7A is a schematic side view showing a state in which the absorbent article 1 is used as an absorbent pad 1P; - Figure 7B is a view along the arrows B-B in Figure 7A; - Figure 8A is a schematic side view in a state in which the absorbent article 1 is dressed as a tape-type disposable diaper 1 by the low weight infant 101 placed in a ventral position; - Figure 8B is a side view showing a state in which the diaper 1 used as the article 1 is removed from the infant 101 placed in the ventral position; - Figure 9 is an enlarged view of main parts to explain the cut lines 1c; - Figure 10 is an enlarged view of main parts for explanation of the cut lines 1c' in a first modified example; - Figure 11 is an enlarged view of the main parts to explain the cut lines 1c" in a second modified example; - Figure 12 is an enlarged view of main parts for explanation of the cut lines 1c''' in a third modified example; - Figure 13 is a schematic plan view of an absorbent article 1'''' in which the cut lines 1ca are formed in a first part of the waist 1a; - Figure 14 is an explanatory diagram of a fastening state with the fastening tapes superimposed; - Figure 15 is a schematic plan view of an example in which the cut lines 1c11a are formed in the tape base materials 11a of the fastening tapes.

[Settings Description]

[0017] At least the following matters will become clear with the detailed description of this invention with respect to the attached drawings, presented by way of example and not limitation.

[0018] An absorbent article that includes a longitudinal direction, a lateral direction and a thickness direction that are orthogonal to each other, the absorbent article including: - a first waist part, a crotch part and a second waist part, which are harmonized in this order in the longitudinal direction; and; - fastening tapes which are respectively attached to each of the end parts of the second waist part in the lateral direction; - the absorbent article being enabled to be used as a tape-like disposable diaper by attaching the fastening tapes respectively to the first waist part to form a waist opening and a pair of openings encircling the legs; - cut lines being formed in an unfolded state of the absorbent article, the cut lines each being used to cut at least a projecting part of each of the fastening tapes, the projecting part projecting to the outside of the second waist part in the lateral direction ; - the absorbent article being enabled to be used as an absorbent pad without the projecting part by cutting the projecting part at each of the cut lines.

[0019] According to said absorbent article, if the absorbent article is used as it is, it can be used as a tape-type disposable diaper. Furthermore, when at least the aforementioned projecting portion of the fastening tape is cut along the cut line, the absorbent article may be used as an absorbent pad without the projecting portion.

[0020] In the above absorbent article, it will be preferable that the cut lines are respectively formed at each position on both sides in the lateral direction corresponding to each of the fastening tapes, and the cut lines are each formed so as to cut a part on the which each of the fastening tapes is fixed to the second part of the waist.

[0021] According to said absorbent article, when the absorbent article is used as a disposable tape-type diaper, the absorbent article may be removed from the target wearer while maintaining the ventral position without changing the target wearer placed in a ventral position at a supine position. The details are as follows. Firstly, in a general dress form in the case where the article is used as a tape-type disposable diaper, the article is worn by a target user so that the above-mentioned second waist part to which the fastening tapes are attached is positioned on the rear side of the target user. Accordingly, in the ventral position, the second waist part is generally positioned upwards in the vertical direction, and here, the aforementioned cutting lines are formed on the second waist part. For this reason, the part to which the fastening tape is fixed can be cut readily. Thus, the fastening tape may be removed from the central part in the lateral direction on the second waist part while the ventral position is maintained, so that the absorbent article can be unfolded while the ventral position is maintained. Consequently, the absorbent article can be quickly removed from the target user's prone position. Incidentally, removing the absorbent article while the ventral position is maintained in this way will suit a notion of minimal handling.

[0022] In the above absorbent article, it will be preferable that a maximum value of a space between the cut lines in the lateral direction is less than a maximum value of a dimension of the first part of the waist in the lateral direction.

[0023] According to said absorbent article, the maximum dimension value of the remaining part in the lateral direction, which remains in the second part of the waist after being cut at the cut line, can be made smaller than the maximum dimension value of the first part from the waist in the lateral direction. Consequently, the maximum dimension value of the remaining part of the second waist part in the lateral direction after being cut at the above-mentioned cutting line can be made smaller than the maximum dimension values of both the first waist part and the second waist part in the direction side in a configuration in which the fastening tapes are merely removed from the absorbent article. Thus, the insertion properties when the absorbent article is inserted with the second waist part facing the front could be improved more than in a case having a configuration in which the fastening tapes are merely removed from the absorbent article. Accordingly, the absorbent article may further favorably be used as an absorbent pad.

[0024] Furthermore, when the user sees the absorbent pad having a magnitude ratio as set forth above, the user will still readily recognize that the front side when inserting the pad will be the second waist part.

[0025] In the above absorbent article, it will be preferable that each of the cutting lines is formed by a thread extending from a part to be the opening of the waist, to a part to be the opening encircling the leg through an internal position of the part in which each of the fastening tapes is attached to the second part of the waist in the lateral direction.

[0026] According to said absorbent article, the user will be able to cut the part to which the fastening tape is attached to the second part of the waist, starting from the part to be the opening of the waist or the part to be an opening surrounding the leg. Thus, the part to which the aforementioned fastening tape is attached can be quickly cut from the absorbent article worn by the target user as a tape-type disposable diaper while the ventral position is maintained. In this way, while the ventral position is maintained, the fastening tape can be removed from the central part of the second waist part in the lateral direction, thus enabling the absorbent article to be unfolded while the ventral position is maintained. Consequently, the absorbent article can be quickly removed from the target wearer in the prone position.

[0027] In addition, each of the cutting lines passes the inner position in the lateral direction of the part to which the fastening tape is attached to the second part of the waist. That way, when the part is cut, it will not be necessary to cut the fastening tape. This can reduce the force required to cut the line of cut, and thus lessen the external load that can be exerted on the target user while cutting the line of cut.

[0028] In the above absorbent article, it will be preferable that the cutting lines each include a straight part and a curved part having a curved shape, the straight part extending straight along the longitudinal direction from a part to be the waist opening , the curved part being positioned internally of the straight part in the longitudinal direction and being displaced externally in the lateral direction when the curved part approaches internally in the longitudinal direction.

[0029] According to said absorbent article, the remaining part that remains in the second waist part after being cut at the cut line includes a narrow width part having a small dimension in the lateral direction in an external position in the longitudinal direction and including a wide-width part having a greater dimension in the lateral direction than that of the narrow-width part on the inner side of the aforementioned narrow-width part in the longitudinal direction. Thus, when the absorbent pad is inserted with the second waist side portion held in the front, the absorbent pad is inserted with said narrow width portion having a small dimension in the lateral direction, like the front, and thus the pad may exhibit favorable insertion properties.

[0030] In the above absorbent article, it will be preferable that the cut lines each include a plurality of through holes extending through in the thickness direction, and a plurality of through holes being aligned along a direction in which each of the cut lines should extend.

[0031] In accordance with said absorbent article, the cut lines each include a plurality of through holes, and thus the cut lines can be easily and certainly cut in a direction in which the cut lines extend.

[0032] In the above absorbent article, it will be preferable that the cut lines each include a first part of the cut line which is formed by the inner extension in the longitudinal direction from a part to be the waist opening, and a second part of the cutting line which is positioned internally of the first part of the cutting line in the longitudinal direction and being positioned in the same position as each of the fastening tapes in the longitudinal direction, and when radii of the lengths of the through holes occupying per unit length in one direction in which the cut lines each extended being compared, the radius of the second part of the cut line being less than the radius of the first part of the cut line.

[0033] According to said absorbent article, the first part of the cutting line is more easily cut than the second part of the cutting line. Accordingly, when each of the fastening tapes is pulled outwardly in the lateral direction to allow the absorbent article to be worn by the target user as the tape-type disposable diaper, it will be possible to effectively prevent the second part of the cutting line from being unexpectedly cut, and also, when the cut lines are cut to use the absorbent article as an absorbent pad, the cut can easily be started from the part to be the waist opening based on the first part of the cut line.

[0034] In the above absorbent article, it will be preferable that the cut lines each include a curved part having, in an internal position of the second part of the cut line in the longitudinal direction, a curved shape being externally displaced in the lateral direction when the curved part approach internally in the longitudinal direction, when the radii of the lengths of the through holes occupying per unit length in a direction in which the cutting lines each extended being compared, the radius of the second part of the cutting line being less than the radius of the curved part.

[0035] According to said absorbent article, the curved part is cut more easily than the second part of the cut line. Thus, this can effectively prevent the second part of the cut line from being unexpectedly cut when each of the fastening tapes is pulled outwardly in the lateral direction to allow the absorbent article to be donned by the target user as the tape-like disposable diaper. In addition, this allows the curved part to be securely cut along the curved target shape when the cut lines are cut to use the absorbent article as the absorbent pad.

[0036] In the above absorbent article, it will be preferable that the elastic members which contract at least the second waist part and the crotch part in the longitudinal direction are provided along the longitudinal direction, the elastic members being each harmonized next to each of the lines of cutting in the lateral direction on a predetermined band in the second part of the waist in the longitudinal direction, and at least in a part of the predetermined band, the elastic members being positioned internally in the cut lines in the lateral direction.

[0037] According to said absorbent article, even when the absorbent article is used as the absorbent pad, the aforementioned elastic members remain at least in the above-mentioned part in the predetermined band in the aforementioned remaining part of the second waist part. Thus, the remaining part of the second part of the waist will be able to lift on the side of the skin in the direction of thickness by a force of contraction of the elastic limbs. Accordingly, when the absorbent pad is harmonized so that the remaining part of the second waist part is positioned on the side of the abdomen of the target user placed in the ventral position and the first part of the waist is positioned on the posterior side of the same, the remaining part of the second part of the waist, which rises on the side of the skin, may come into contact with the side of the target user's abdomen. Thus, droppings can certainly be caught by the remaining part of the second part of the waist while the space between the part of the abdomen of the target user and the remaining part of the second part of the waist will be reduced. Consequently, the absorbent pad may exhibit high leakage prevention properties.

[0038] In the above absorbent article, it will be preferable that the elastic members are elastic members encircling the legs by contraction, in the longitudinal direction, parts to be the openings surrounding the legs which are respectively positioned on both sides in the lateral direction.

[0039] According to said absorbent article, the cut lines are each formed in an external position of the extreme part of the base and the raised part of the barrier sheath forming part in the lateral direction. Thus, even in the absorbent pad which is the absorbent article after being cut at each of the cut lines, the above extreme part of the base and the raised part are kept in good condition, i.e. the extreme part of the base and the raised part. being able to properly bar excrement to be retained internally in the lateral direction. Accordingly, even when the absorbent article is used as an absorbent pad, the aforementioned end portion of the base and the raised portion may exhibit leakage prevention properties that are substantially the same as in the case where the absorbent article is used as the diaper. disposable tape.

[0040] In the above disposable article, it will be preferable that in each of the end parts of the raised part in the longitudinal direction, fixing parts are respectively formed to fix the end parts so that the end parts are facing downwards on a sheet positioned in a lateral not of the skin in the thickness direction, and the cutting lines are each formed in a position external to the fastening part in the lateral direction.

[0041] According to said absorbent article, the aforementioned attachment part may remain on the absorbent pad which is the absorbent article after being cut along the cut lines. Accordingly, when the above mentioned attachment part, the absorbent pad can be curved so as to allow the non-skin side to become an inner peripheral side in close contact with the target user's body readily along the curved body. of the target user. This contributes to improving the leak-prevention properties of the absorbent pad.

[0042] In the above absorbent article, it will be preferable that a corresponding relationship between a side of the abdomen and the back side of a target wearer, and the first waist part and the second waist part, are opposed to each other between the disposable diaper type tape and the absorbent pad.

[0043] According to said absorbent article, the aforementioned corresponding relationship is opposite to each other between the tape-type disposable diaper and the absorbent pad. This allows the worker assisting the target user to put on the article, to perform a donning operation while being aware of one side and the other side in the longitudinal direction, and thus avoiding the occurrence of a clothing mistake with respect to the longitudinal direction.

[0044] In the aforementioned absorbent article, it will be preferable that another cutting line is included to cut an extreme part of the first waist part in the lateral direction.

[0045] According to said absorbent article, the dimension of the remaining part in the lateral direction, which remains in the center of the first part of the waist in the lateral direction after being cut at the cutting lines, is smaller than the dimension of the first part of the waist in the lateral direction before being cut. Thus, insertion properties can be improved even when the absorbent article is inserted with the remaining part of the first waist part after being cut in the foreground. == Present Configuration ==

[0046] Figure 2 is a schematic plan view of an absorbent article 1 of the present configuration, which is in an unfolded state. Furthermore, Figures 3A, 3B and 3C are cross-sectional views of Figure 2 respectively taken along line A-A, line B-B and line C-C. Also, Figure 4 is a schematic perspective view of the absorbent article 1 in a state worn as a tape-type disposable diaper 1.

[0047] This absorbent article 1 is a so-called tape-type disposable diaper 1 which is worn by a target user 101 using fastening tapes 11, and in particular, being suitably applied to a low weight infant 101 of 3000 grams or less. It should be noted that the following description is made considering that the underweight child 101 is the target user. However, the invention is not limited thereto. Children or young children could be a target user, and adults could also be a target user.

[0048] In the unfolded state in Figure 2, the absorbent article 1 has a longitudinal direction, a lateral direction and a thickness direction as three directions orthogonal to each other. Here, the absorbent article 1 includes a first waist part 1a, a crotch part 1m and a second waist part 1b, which are matched in this order in the longitudinal direction. Generally, when the article 1 is used as a tape-type disposable diaper 1 as shown in Figure 4, the first waist part 1a covers the side of the abdomen of the low weight infant 101, the crotch part 1m covers a crotch of the infant 101 , and the second waist part 1b covers the posterior side of the child 101. In some cases, the absorbent article 1 is, however, worn by the child with low weight 101 while being reversed in the longitudinal direction against the aforementioned case. In other words , the absorbent article 1 may be worn so that the first waist part 1a covers the rear side of the low weight child 101, and the second waist part 1b covers the side of the abdomen of the child.

[0049] Furthermore, in the unfolded state of Figure 2, the first waist part 1a and the second waist part 1b respectively project on both sides in the lateral direction more than the crotch part 1m. Accordingly, the external shape of the absorbent article 1 when viewed from the thickness direction is a substantially hourglass shape when viewed from above. In other words, the absorbent article 1 includes an absorbent body 3 which absorbs excreted fluids, and a thin flexible sheet-like part which projects externally from the absorbent body 3 in the lateral direction and the longitudinal direction, and the external shape of this sheet-like part. being in a substantially hourglass shape when viewed from above.

[0050] In the following description, each of the parts 1sf of this part as a sheet projecting on both sides in the lateral direction more than the absorbent body 3, is referred to as a "side flap 1sf". Furthermore, said side flap extends over the three parts, that is, the first waist part 1a, the crotch part 1m and the second waist part 1b. In the following description, each of the side flaps 1asf positioned on the first waist part 1a is also referred to as the "first side flap 1asf", each of the side flaps 1msf positioned on the crotch part 1m is also referred to as a "crotch part side flap 1msf". legs 1msf", and each of the side flaps 1bsf positioned on the second waist part 1b being also referred to as a "second side flap 1bsf". Note that each of the second side flaps 1bsf, 1bsf corresponds to "each of the extreme parts in the lateral direction" according to the claims. Furthermore, one side in the thickness direction will henceforth be referred to as the “skin side” and another side thereof is referred to as the “non-skin side”. The schematic plan view will be referred to as the “non-skin side”. The schematic plan view of Figure 2 shows the absorbent article 2 in the unfolded state as seen from the side of the skin.

[0051] Here, as illustrated in Figure 2, the fastening tapes 11 are each provided to project in the lateral direction on each of the outer end parts 1bsef2 of each of the second side flaps 1vsf in the lateral direction. Thus, by attaching each of the fastening tapes 11 to the target region 1at (Figure 2) provided on the non-skin side face of the first waist part 1a, a waist opening 1HB and a pair of openings encircling the legs 1HL, 1HL are formed as illustrated in Figure 4, and thus allowing the absorbent article 1 to be donned by the lightweight infant 101.

[0052] Said absorbent article 1 includes an absorbent body 3 which has a substantially longitudinal elongated shape and absorbs fluid excreted as urine; a liquid permeable topsheet 2 covering the absorbent body 3 from the side of the skin; a liquid impervious leakproof sheet 4 covering the absorbent body 3 from the non-skin side; an outer sheet shaped substantially like an hourglass 5 covering the non-skin side leakproof sheet 4 to be the outer shape of the absorbent article 1; and a pair of barrier-sheath sheets 6, 6 which are matched in the lateral direction of the top sheet 2 and respectively forming barrier-sheaths 6g, 6g, as leak-proof walls on each of the end parts of the absorbent body 3 in the lateral direction.

[0053] As illustrated in Figure 3A to Figure 3C, the absorbent body e includes an absorbent core 3c and a core wrap sheet 3rs which wraps nearly the entire outer surface of the absorbent core 3c. The absorbent core 3c is a member formed by developing a particular liquid absorbent material into a substantially hourglass shape when viewed from above (Figure 2), the substantially hourglass sheet being an example of a predetermined shape. Said liquid absorbent material is exemplified by liquid absorbent fiber (e.g. cellulose fiber) and liquid absorbent particulate matter as a super absorbent polymer (hereinafter also referred to as SAP). As for the 3rs core wrap sheet, a liquid permeable sheet such as a woven paper sheet or non-woven material will be employed. It should be noted that the shape of the absorbent core 3c is not limited to the substantially hourglass shape when viewed from above. The shape may be, for example, a substantially rectangular shape when viewed from above.

[0054] The topsheet 2 is made of non-woven material as non-woven material through air, and having flat dimensions in which the topsheet 2 extends beyond both sides in the longitudinal direction and both sides in the lateral direction of the absorbent body 3 as shown in Figures 2 and 3A to 3C. The leak-proof sheet 4 is made of resin film such as polyethylene film, and similarly having flat dimensions in which the leak-proof sheet 4 extends beyond both sides in the longitudinal direction and both sides in the lateral direction of the absorbent body. 3. These sheets 2 and 4 are joined together, by means of adhesion or welding, in parts that extend beyond the absorbent body in the longitudinal direction and in the lateral direction. The absorbent body 3 is thus retained between these sheets 2 and 4.

[0055] As illustrated in Figure 2, the outer sheet 5 is formed of a suitable non-woven material and is an outer form of the absorbent article 1. On the skin side face of this outer sheet 5, the aforementioned both sheets 2, 4 and the absorbent body 3 which is retained between said sheets 2, 4 are superimposed and integrated by means of adhesion or welding while respective central positions thereof in the lateral direction are combined with each other (Figure 3A to 3C). Note that, in said integrated state, the absorbent body 3 extends over the first waist part 1a, the crotch part 1m and the second waist part 1b (Figure 2).

[0056] The pair of barrier sheath sheets 6, 6 (corresponding to the barrier sheath forming parts) is formed by corresponding to the lateral end parts 2e, 2e of the top sheet 2 so as to respectively cover the end parts 2e, 2e of the side of the skin as shown in Figure 2. The sheets 6,6 respectively form, along the longitudinal direction, the barrier sheaths 6g, 6g which rise from the side surface of the skin of the top sheet 2. Thus, the sheath barrier sheets 6 each include a part base as strip 6k and a raised part 6s, which are harmonized in the lateral direction; the base part 6k being fixed along the longitudinal direction to the top sheet 2 with heat-melt adhesive, etc. and not being able to rise; and the raised part 6s being able to rise on the side of the skin in the direction of thickness of the support point, which is the extreme part of the base 6k. In the side edge part of the raised part 6s, rubber threads 6r, which serve as an elastic member sheath barrier 6r harmonized along the longitudinal direction, stretch in the longitudinal direction and are fixed with hot melt adhesive or the like. Thus, the contraction force in the longitudinal direction is applied to the raised part 6s, and the raised part 6s is contracted in the longitudinal direction due to said contraction force. Accordingly, the raised part 6s rises on the side of the skin in the thickness direction while forming a plurality of pleats. Thus, the raised part 6s functions as a barrier sheath 6g (Fig. 2, Fig. 3B).

[0057] Furthermore, as shown in Figure 2, Figure 3A and Figure 3C, on each of the end parts 6sea, 6sec of the raised part 6s in the longitudinal direction, the fixing parts 6j, 6j are each formed in a form like a strip along the longitudinal direction, and the fixing parts 6j, 6j respectively fix each of the end parts 6sea, 6seb in such a way that the end parts 6sea, 6seb are facing downwards on the top sheet 2. Thus, the hot melt adhesive is provided in a strip-like state along the longitudinal direction as the fastening parts 6j, 6, between parts of the end parts 6sea, 6seb. With said adhesive, the aforementioned end parts 6seLa, 6seLb are respectively fixed in such a way that they face downwards on the top sheet 2.

[0058] As a preferable material for the sheath barrier sheets 6, appropriate non-woven material may be exemplified, and here, an SMS non-woven material (continuous filament/blow spinning/continuous filament non-woven material) is used. However, the invention is not limited to this as long as the material has flexibility.

[0059] Note that, as illustrated in Figure 2, Figure 3A to Figure 3C, each of the barrier sheath sheets 6 extend in substantially the same position as the outermost edges of the outer sheet 5 outwards in the lateral direction. The hem barrier sheets 6 and the outer sheet 5 cooperate with each other, and thus form the above-mentioned first side flaps 1asf, 1asf and the second side flaps 1bsf, 1bsf in the first waist part 1a and the second waist part 1b, respectively. However, also in the crotch part 1m, the barrier sheath sheets 6 and the outer sheet 5 are integrated by means of adhesion or welding on said extreme edges at positions close to the extreme edges, and thus forming said side flaps of the crotch portion 1msf , 1msf, over certain inner regions of the extreme edges in the lateral direction.

[0060] The side flaps of the crotch part 1msf, 1msf are parts to be openings encircling the legs 1HL in a worn state by respective cooperation with a part of the first side flap 1asf and a part of the second side flap 1bsf, i.e. they constituting parts covering the openings encircling the legs of the low weight child 101. Thus, in order to form puckers of the legs by the contraction of each of the side flaps of the crotch part 1msf in the longitudinal direction, elastic threads 21 aligned along the longitudinal direction when the elastic members surrounding the legs 21 are respectively attached to each of the side flaps of the crotch part 1msf in the longitudinal direction in an extended state by means of said adhesion. Thus when the extended state of said elastic members encircling the legs 21 is loosened, the side flaps of the crotch part 1msf contract in the longitudinal direction and form a plurality of walls so that the relative walls and shirring of the legs.

[0061] Note that said elastic members encircling the legs 21 are provided over at least the crotch part 1m and the second waist part 1b as illustrated in Figure 2. Furthermore, in this example, the elastic members encircling the legs 21 are interposed between the outer sheet 5 and the sheath barrier sheets 6 as illustrated in Figure 3B. However, the invention is not limited thereto. For example, the elastic members encircling the legs 21 may be attached to the non-skin side face of the outer sheet 5 or may be attached to the skin side of the sheets to the sheath barriers 6. Furthermore, in this example, the elastic threads 21 are used as those elastic members encircling the legs 21. However, the invention is not limited thereto. Flat rubbers may be used, or stretchable non-woven material or stretch films, each having their own elasticity, may be used.

[0062] As illustrated in Figure 2, each of the fastening tapes 11, 11 is provided on the outer end parts 1bsfe2, 1bsfe2 with a pair of second side flaps 1bsf, 1bsf in the lateral direction. In each of the fastening tapes 11, a strip-like sheet having a laterally long shape and made of non-woven material is referred to as the tape base material 11a, an extreme part of this tape base material 11a in the lateral direction being fixed to a part 1bk of the outermost part 1bsfe 2 of the second side flap 1bsef, and the other end part thereof protruding outward from the outermost part 1bsfe2 of the second side flap 1bsf in the lateral direction.

[0063] Thus, a male member 11m of the snap fastener and hook is attached to the skin side face of this projecting part, and also multiple attachment hooks (not shown) are provided to the skin side face of the male member 11m. Thus, the fixing hooks of the male member 11m are gripped with the target region 1at provided on the non-skin side face of the first waist part 1a, and the fixing tape 11 being thus fixed to the first waist part 1a. A well-known hook-and-clasp fastener is applicable for the male member 11m; for example, T-shaped or hook-shaped attachment hooks may be suitably employed.

[0064] As illustrated in Figure 2 and Figure 3A , the target region 1at is on the non-skin side face of the outer sheet 5 which is the non-skin side face of the first waist part 1a. In other words, in this example, since the outer sheet 5 is made of non-woven material and the sheet will be able to ensure sufficient clamping force between the male member 11m and the sheet 5, the side face is not the skin of the outer sheet itself. 5 is a target for attaching the male member 11m. However, the invention is not limited thereto. A target strand dedicated to form the 1at target region may be used separately.

[0065] Thus, when said absorbent article 1 is worn by the child with low weight 101, the pair of fastening tapes 11, 11 will respectively be attached to the target region 1at of the first part of the waist 1a (Figure 4) while the second part of the waist 1b is pulled on both sides in the lateral direction by the pair of fastening tapes 11, 11 of the second waist part 1b. In this example of Figure 2, the tape base material 11a still projects more outwardly than the male members 11m in the lateral direction. This projecting part 11ap works with handle parts 11ap to be contracted when the fastening tapes 11 are pulled to both sides.

[0066] The basic configuration of absorbent article 1 has been described above. Furthermore, in the present embodiment, the absorbent article 1 is used not only as a tape-type disposable diaper as set out above, but also can be used as an absorbent pad 1p. In other words, as shown in Figure 2, the cut lines 1c, 1c are respectively formed on each of the second side flaps 1bsf, 1bsf of the second waist part 1b in an unfolded state of the absorbent article as shown in Figure 2, and the fixing tapes 11, 11 can be removed by these cutting lines 1c, 1c. Then, as illustrated in Figure 5, when the tapes 11, 11 are removed, the absorbent article can be used as the absorbent pad 1p.

[0067] Figure 6 is an enlarged view of the main parts to explain the cut lines 1c. As illustrated in Figure 6, the cutting lines 1c are formed by perforations so that it is possible to cut parts 1bk (parts 1bk shown by the shading in Figure 6, and also hereinafter referred to as fixing parts of the fastening tape 1bk) to which the base material of the tape 11a of the fastening threads 11 are fixed to the second part of the waist 1b. Specifically, said cutting lines 1c are formed on the second side flaps 1bsf respectively by the correspondence of each of the fastening tapes 11. Thus, each of the cutting lines 1c is formed by a route extending from a part 1bHB to be a waist opening 1HB in the second waist part 1b, to a part 1bHL to be the opening encircling the leg 1HL in the second waist part 1b through an internal position of the fastening tape fixing the part 1bk in the lateral direction.

[0068] Thus, the fastening tape fixing the parts 1bk is cut from the second waist part 1b by cutting each of the cutting lines 1c, and thus removing all the fastening tapes 11 projecting in the lateral direction of the second waist part 1b (Figure 5). Accordingly, as illustrated in Figure 5, a remaining part 1bc which has remained in the center of the second waist part 1b can be made in a state without limbs projecting in the lateral direction. Consequently, the absorbent article 1p after the cut lines 1c are cut can be used without any problem as the absorbent pad 1p in which the insert properties are required.

[0069] For example, in the case where the absorbent article 1p is inserted under the body of the low weight infant 101 placed in the ventral position as shown in Figure 7A, if the absorbent article 1p is inserted from the side of the leg to the side from the head of the child 101 in the horizontal direction with the second part of the waist 1bc, in which the fastening tapes 11 are removed, taking the front, the article 1p can be quickly placed under the child 101. Thus, the article 1p can be used as a 1p absorbent pad. Note that, in the placed state of Figure 7A and Figure 7B, the second waist part 1bc is positioned on the side of the child's abdomen 101. While maintaining this state, the padding 1p is folded up at the crotch part 1m as shown by the permission 7A, and accordingly, when the buttocks and back of the child 101 are covered from above by the first part of the waist 1a, the absorbent pad 1p will be completely worn by the child 101.

[0070] Note that, as understood from the above description, in this example, when the absorbent article 1 is used as the absorbent pad 1p, a harmonized relationship in the longitudinal direction will be opposite to a case in which it is used as the tape-type disposable diaper 1 In other words, a corresponding relationship between the abdomen side and the back side of the low weight infant 101, and the first waist part 1a and the second waist part 1b, will be opposed to each other between the tape-type disposable diaper 1 and the 1p absorbent pad. This allows the worker such as a nurse who makes the underweight child 101 wear article 1, 1p to perform a dressing operation while being aware of one side and the other side in the longitudinal direction and thus avoiding the occurrence of a dressing mistake. with respect to the longitudinal direction.

[0071] As illustrated in Figure 6, the perforations of the cutting lines 1c are a set of a plurality of open cuts (corresponding to the through holes, and being schematically shown on all drawings in which the perforations are illustrated, including Figure 6). Thus, a plurality of straight cuts (not shown) extending through the second side flaps 1bsf in the thickness direction are placed along a direction in which the cutting line 1c is to extend. The length and height of cuts are designed to take into account proper cutting and other performance. Specifically speaking, the length of the cut is exemplified by 1mm to 3mm, and the space between adjacent cuts (in other words, the length of an uncut part, which is positioned between cuts) is exemplified by 0.5mm to 2mm. It can be said that the said height of cuts is the sum of the length of the cut and the aforementioned space.

[0072] Cutting lines 1c will be further described in detail below. As illustrated in Figure 6, the cut line 1c formed in said second side flap 1bsf and the cut line 1c formed in another second side flap 1bsf are formed to be symmetrical lines with respect to the center line C1 of the absorbent article 1 in the lateral direction each other. Each of the cutting lines 1c has a substantially J shape including a straight part 1cL along the longitudinal direction and a curved part 1cB having a curved shape.

[0073] The straight part 1cL travels inwardly in the longitudinal direction along a straight line parallel to the longitudinal direction, starting from a part 1bHB to be the opening of the girdle 1HB in the second part of the girdle 1b, i.e. an outer edge 1be1 of the second waist part 1b in the longitudinal direction. Thus, the straight part 1cL reaches the same position as the fastening tape 11 with respect to the longitudinal direction, or a slightly inward position beyond this position. Thus, the straight part 1cL is connected to the curved part 1cB in this position, and the curved part 1cB still extends internally from it in the longitudinal direction. Specifically, the curved part 1cB is displaced externally in the lateral direction with a specific radius of curvature when the curved part 1cB approaches internally in the longitudinal direction and finally, it reaches a part 1bHL to be the opening encircling the leg 1HL in the second part of the waist 1b i.e. an outer edge 1be2 of the second waist part 1b in the lateral direction.

[0074] Also, as illustrated in Figure 2, the route of the cutting lines 1c, 1c is established so that the maximum value L1c of a space between the pair of cutting lines 1c, 1c becomes less than the maximum value L1a of the dimension of the first waist part 1a in the lateral direction.

[0075] Thus, as shown in Figure 5, the maximum value L1bc of the dimension of the remaining part 1bc in the second waist part 1b in the lateral direction, which remains in the center in the lateral direction after each of the fixing parts of the fixing tape 1bk, 1bk are cut from each of the second side flaps 1bsf, 1bsf on the second waist part 1b on each of the cut lines 1bsf, 1bsf on the second waist part 1b on each of the cut lines 1c, 1c being less than the value maximum. Accordingly, as illustrated in Figure 7A and Figure 7B, when the absorbent pad 1p is inserted under the child's body with low weight 101 placed in a ventral position as shown in Figure 7A and Figure 7B with the remaining central part 1bc of the second part of the waist 1b taking the front, this insertion being able to be carried out smoothly. Thus, quilting 1p is preferably used as having excellent insert properties.

[0076] Furthermore, as shown in Figure 5, the remaining part 1bc that remains in the second waist part 1b after the cut is performed on the cutting lines 1c, 1c includes a narrow width part 1bc1 having a small dimension in the lateral direction in an outer position in the longitudinal direction, and including a width part 1bc1 having a larger dimension in the lateral direction than the narrower width part 1bc1 on the inner side in the longitudinal direction than the aforementioned narrow width part 1bc1. Thus, when the absorbent pad 1p is inserted with the second waist part 1b, taking the lead, the absorbent pad 1p is inserted with the mentioned narrow width part 1bc1, which has a small dimension in the lateral direction, taking the lead, and thus favorable insertion properties can be obtained by quilting 1p.

[0077] Furthermore, according to a cut line route 1c, when the article 1 is used as the tape-type disposable diaper 1 as shown in Figure 8A and 8B, the article 1 can be removed from the target user 101 while keeping the ventral position without switching the target user 101 placed from a ventral position to a dorsal position. This is adequate for a notion of minimal handling. Details are as follows. Firstly, in a form of general clothing, the article 1 is worn by the target user 101 so that the aforementioned second waist part 1b to which the fastening tapes 11 has been attached is positioned on the rear side of the target user 101 as illustrated in Figure 8A.

[0078] Accordingly, in the ventral position, the second waist part 1b is generally positioned above in the vertical direction, and here, the above-mentioned cut lines 1c being formed in the second waist part 1b. Accordingly, in the ventral position, the second waist part 1b is generally positioned above in the vertical direction, and here, the above-mentioned cut lines 1c are formed in the second waist part 1b. Accordingly, as illustrated in Figure 8B, the part 1bk on which the fastening tape 11 is attached to the second waist part 1b may be cut at the cutting line 1c. For that reason, the fastening tape 11 can be removed from the central part 1bc (Figure 6) in the lateral direction on the second waist part 1b while the ventral position is maintained, so that the absorbent article 1 can be unfolded while the ventral position is maintained. being maintained (Figure 8B). Consequently, the absorbent article 1 used as a diaper can quickly be removed from the target wearer 101 placed in the ventral position.

[0079] Furthermore, as illustrated in Figure 6, the cutting lines 1c each pass the internal position with respect to the fastening parts of the fastening tape 1bk in the lateral direction on the second waist part 1b according to the above-mentioned route. Thus, when the fastening parts 1bk are cut, it will not be necessary to cut the fastening strips 11, and thus enabling the force required for cutting the cutting lines 1c to be reduced. Consequently, when the cut lines 1c are cut to remove the diaper 1 of the low weight infant 101 placed in the ventral position, an external load that can be transmitted to the infant can be reduced. This will still suit the notion of minimal handling.

[0080] Furthermore, if the above-mentioned curved part 1cB is included, the cutting line 1c will be allowed to reach the outer edge 1be2 of the second waist part 1b in the lateral direction with a relatively short route. Thus, as shown in Figure 6, the route of the cutting line 1c can be terminated without being largely extended internally in the longitudinal direction. For this reason, it will be possible to effectively prevent a defect from occurring when the route of the cutting line 1c is largely extended internally in the longitudinal direction, for example, as a defect that when the route reaches the first side flap 1asf (Figure 2) , a part of the cut line 1c will be sandwiched by the part of the abdomen of the low weight child 101 placed in the positioned posture and the legs that have been spread out in an M shape, so that the cut lines become less likely to be cut .

[0081] In this example of Figure 6, although each of the cut lines 1c are completely within the second side flap 1bsf, the invention is not limited thereto. Thus, a part of the cut line 1c may project towards the side flap of the crotch part 1msf in some cases. However, when the projection becomes excessively large, said defect may be caused by the above mentioned cut line 1c being less likely to be dimensioned as the cut line 1c is easily sandwiched by the part of the abdomen and the M-shaped legs of the child. with low weight 101, cut length becoming long, or similar.

[0082] Furthermore, in the example of Figure 6, a plurality of sheets 4, 5 and 6 exist in a position where each of the straight parts 1cL is formed, specifically three sheets, i.e. the sheath barrier sheet 6, the sheet leakproof 4 and outer sheet 5 exist from the side of the skin in the thickness direction, and thus the number of layers of the sheet being three. Accordingly, in the straight part 1cL, the perforations are formed by extending through these three sheets of layers 4, 5 and 6.

[0083] However, as stated above, the position where the curved part 1cB is formed is displaced externally in the lateral direction as it approaches internally in the longitudinal direction. Thus, the layer number of the sheets changes in the course of approaching from one end to the other end of the curved part 1cB. Thus, as illustrated in the left half part of Figure 6, in a part 1cB1 in a predetermined range of the curved part 1cB, which continuously extends from the straight part 1cL, the sheet layer number is three as similar to the above-mentioned straight part 1cL , where a predetermined part in the strip of the curved part 1cB in the longitudinal direction is constituted by two sheets, i.e. the barrier sheath sheets 6 and the outer sheet 5 facing the leak-proof sheet 4 does not exist. Accordingly, the perforations are formed by extending through the three sheets 4, 5 and 6 in the front part 1cB1, where the perforations are formed by extending through the two sheets 5 and 6 in the front part 1cB2.

[0084] In this way, when the number of layers of the sheet is reduced even in a part of the part 1cB2 of the curved part 1cB, the part of the part 1cB2 is relatively easily cut. Thus, the cutting of the curved line part, which is generally recognized as being more difficult than the straight line cutting, can be facilitated, so that the curved part 1cB can be safely cut along the target curved shape.

[0085] Furthermore, in this example, the cut line 1c is formed on the second side flaps 1bsf as set out above with reference to Figure 6, and thus the cut line 1c is formed externally with respect to the absorbent body 3 in the lateral direction. Furthermore, as understood with reference to Figure 6, the cut line 1c is formed externally with respect to the base end part 6k and the raised part 6s of the sheath barrier sheet 6 in the lateral direction.

[0086] Thus, even if the cutting line 1c is cut, the absorbent body 3, and the base end part 6ks and the raised part 6s of the barrier sheath sheet 6 are not affected at all and are kept in good condition. This allows the absorbent body 3 and the raised part 6s to perform a function of retaining faeces without any problem even when the absorbent article is used as the absorbent pad 1p. Consequently, 1p padding can exhibit high leakage prevention properties.

[0087] Furthermore, as set out above, despite being provided, in the second waist part 1b, fastening parts 6j each fixing the end part 6seb of the raised part 6s in the longitudinal direction in a state where the end part 6seb is facing downwards, and the cut line 1c is formed externally with respect to each of the fastening parts 6j in the lateral direction as illustrated in Figure 6. Accordingly, the aforementioned fastening parts 6j may remain on the absorbent pad 1p which is the absorbent article 1p after it is cut at the cut lines 1c. Thus, once a contraction force exerted on the raised part 6 is introduced to the aforementioned fastening parts 6j, the absorbent pad 1p can readily bend so as to allow the non-skin side in the thickness direction to become a peripheral side. internal. Accordingly, the pad 1p may be in close contact with the low weight child's body 101 readily along his bent body. This also contributes to the improvement of the leak-prevention properties of the absorbent pad 1p.

[0088] Incidentally, when for the positional relationship between top sheet 2 and cutting line 1c, the cutting line will be formed externally with respect to sheet 2 in the lateral direction, i.e. top sheet 2 does not exist in a cutting line position 1c. Accordingly, the number of layers of the sheet can be reduced at the position of the cutting line 1c, and this contributes to improving the ease of cutting the cutting line 1c.

[0089] Here, in terms of further facilitating the cutting of the cutting line 1c, the leak-proof sheet 4 will preferably be harmonized so that the stretch direction during manufacture of a resin film which is to be the sheet 4 in Figure 6 is established along the longitudinal direction. Thus, the resin film is generally likely to be cut along the stretch direction versus the resin orientation aligned with the stretch direction. Thus, if the stretching direction is along the longitudinal direction, it becomes easier to cut the leak-proof sheet 4 along the longitudinal direction. As a result, the above-mentioned straight part 1cL in which the sheet exists can be safely cut along the longitudinal direction.

[0090] Furthermore, when the curved part 1cB is cut in succession to the straight part 1cL of the cut line 1c as shown in Figure 6, the extended line of the straight part 1cL or its nearest position will be hands likely to be cut directly into error due to the moment caused while cutting the straight part 1cL, that is, the cutting line can be cut in a position offset from the curved part 1cB in mistake. However, in this sense, this example is elaborated as follows.

[0091] First, the elastic member encircling the leg 21 is positioned close to the cut line 1c, and here, the elastic member encircling the leg 21 and the curved part 1cB of the cut line are crossed in a predetermined transverse position P1c when viewed thickness direction. Specifically, as shown in the right half part of Figure 6, when the curved part 1cB is hypothetically divided into two parts, that is, a part 1cBa on the side of the waist opening 1HB and a part 1cBb on the side of the opening encircling the leg, the transverse position P1c in the elastic member encircling the leg 21 and the cut line 1c is included in the front part 1cBa on the side of the waist opening 1HB, and thus the transverse position P1c being positioned relatively close to a limit position PLB between the straight part 1cL and the curved part 1cB.

[0092] Accordingly, in the process of cutting the curved part 1cB in succession to the straight part 1cL of the cutting line 1c, when its cutting position comes to the above-mentioned transverse position P1c close to the above-mentioned limit position PLB, the moment of the cutting in the longitudinal direction, which is caused by the straight part 1cL, is absorbed by elastic deformation of the elastic member encircling the leg 21, and thus restricting the linear cutting operation along the longitudinal direction. This will readily make a course correction towards the curved part 1cB, and thus enable the cut to be performed safely along the curved part 1cB.

[0093] Furthermore, according to the transverse relationship between the aforementioned cutting line 1c and the elastic member encircling the leg 21 (corresponding to the elastic member), most of the elastic member encircling the leg 21 remains the absorbent pad 1p after cutting line 1c is cut. Thus, as shown in Figure 6, with this transverse relationship, the elastic member encircling the leg 21 is matched close to the cut line 1c in the lateral direction over a predetermined band of the second waist part 1b in the longitudinal direction, and the elastic member encircling the leg 21 being positioned internally on the cutting line 1c in the lateral direction at least in a part A21 in a predetermined range. Thus, after the cut line 1c is cut, the elastic member encircling the leg 21 remains in the remaining part 1bc of the second waist part 1b of the absorbent pad 1p at least in the aforementioned part A21.

[0094] Accordingly, the remaining part 1bc of the second waist part 1b of the padding 1p may rise on the side of the skin in the thickness direction due to a contraction force of the elastic member encircling the leg 21 as shown by the arrows in the Figure 7A. Thus, when the absorbent pad 1P is inserted and matched so that the remaining part 1bc of the second waist part 1b is positioned on the side of the abdomen of the low weight infant 101 placed in a ventral position and the first waist part 1a being positioned on the posterior side of the same, the remaining part 1bc of the second part of the waist 1b which rises on the side of the skin, comes into contact with the part of the child's abdomen 101. Accordingly, the space between the part of the child's abdomen 101 and the remaining part 1bc of the second waist part 1b may be reduced, thus enabling the absorbent pad 1p to exhibit high leakage prevention properties.

[0095] Furthermore, in an example of Figure 9, easy cutting properties of the cutting line 1c differs depending on the positions in the longitudinal direction due to an artifice of the perforations. For example, when the cutting line 1c is hypothetically divided into three parts, that is, 1c1, 1ce, 1c3 in the longitudinal direction, the easy-cut properties are respectively set depending on each of the parts 1c1, 1c2 and 1c3. Specifically, a first part 1c1 (corresponding to the first part of the cut line) which is part 1c1 of the three parts 1c1, 1c2, 1c3 is positioned in a position including part 1bHB to be a waist opening 1HB in the second waist part 1b, and this first part 1c1 being formed so that the perforations are easily cut. Furthermore, the second part 1c2 (corresponding to the second part of the cutting line) which is another part 1c2 is positioned to include the same position of the fixing part of the fixing tape 1bk with respect to the position in the longitudinal direction, and this second part 1c2 being formed so that the perforations are more difficult to cut than those of the first part 1c1. Furthermore, the third part 1c3 which a remaining part 1c3 is the above-mentioned curved part 1cB, and this part 1c3 being formed so as to have easily cut perforations having the same property as the first part 1c1.

[0096] This can effectively prevent the second part 1c2 from being unexpectedly cut based on the hard-to-cut perforations of the second part 1c2 when each of the fastening tapes 11, 11 being pulled outwardly in the lateral direction to allow the absorbent article 1 to be worn by the low weight infant 101 as the tape-type disposable diaper 1. In addition, when the diaper 1 is removed from the low weight infant 101, or when the absorbent article is used as the absorbent pad 1p, cutting can be easily started from part 1bHB which is to be the waist opening 1HB based on the easy cut perforations in the first part 1c1. Also, on the curved part 1cB which is to be the third part 1c3, the part 1cb can be safely cut along its curved target shape based on its easy-cut perforations.

[0097] Incidentally, the establishment of the aforementioned easy-cut perforations and the hard-to-cut perforations could be achieved, and in this example, the establishment is carried out in this way. Thus, in this example, the height of the cuts are kept constant and the length of the cuts being made different, and thus differentiating between the above mentioned part 1c2, and the above mentioned parts 1c1 and 1c3, respective radii of the lengths of the cuts occupying length by unit in a direction in which the cut line 1c extends. Generally, if this radius is larger, the part will be easily cut, and if this radius is smaller, the part will be difficult to cut. Accordingly, in this example, the radius in the second part 1c2 is made smaller than the radii in the first part 1c1 and the third part 1c3.

[0098] Figure 10 is an explanatory diagram of the cut line 1c' in a first modified example. In the above mentioned configuration, as illustrated in Figure 6, the number of layers of the sheet is changed from three to two according to the position of the cut line 1c, where in this first modified example, the number of layers of the sheet is kept constant over the entire length of the cutting line 1c'. Thus, as illustrated in Figure 10, the cutting line position 1c' in the first modified example is externally shifted in the lateral direction with respect to the aforementioned cutting line 1c in the configuration shown in Figure 6, and thus, the cutting line 1c ' being positioned on the outside of the leak-proof sheet 4 in the lateral direction over its entire length. In said position, only two sheets, i.e. the barrier sheath sheet 6 and the outer sheet 5 exist. Accordingly, the perforations of the cutting line 1c' are formed by extending through these two sheets 5 and 6 in the thickness direction, and then the cutting line 1c' can be cut with favorable cutting properties due to the reduced number of layers. Note that since configurations other than the above are generally the same as those set out in the above configurations, the same configurations are denoted by the same reference numbers, and descriptions thereof will be omitted.

[0099] Figure 11 is an explanatory diagram of the cut lines 1c'' in a second modified example. In the above-mentioned configuration and the first modified example, as illustrated in Figure 6 and Figure 10, the cutting lines 1c, 1c' each including the straight part 1cL and the curved part 1cB, where in this second modified example, the cutting line 1c ” does not include the curved part 1cB, but only the straight part 1cL. Thus, in the second modified example, the cutting line 1c” is still externally displaced in the lateral direction compared to the first modified example, and thus enabling the fixing part of the fixing tape 1bk to be cut only by a straight part 1cL along from the longitudinal direction. With said cutting line 1c”, since it has only the straight part 1cL, cutting the cutting line 1c” more easily. Consequently, it will be possible to perform a safe cut without being too displaced from the cutting line 1c”. Note that only two sheets, i.e. the barrier sheath sheet 6 and the outer sheet 5 are still present in a position of the cut line 1c”. Thus, the cutting line perforations 1c" are formed by extending through these two sheets 5, 6 in the thickness direction.

[00100] Figure 12 is an explanatory diagram of the cut lines 1c''' in a third modified example. All of the cut lines 1c, 1c', and 1c” in the aforementioned configuration (Figure 6), the first modified example, (Figure 10) and the second modified example (Figure 11) are formed in a substantially J-shape or by extension in a straight line from part 1bHB to be the opening of girdle 1HB to part 1bHL to be the opening encircling leg 1HL in the second part of girdle 1b, where each of the cut lines 1c'” of the third modified example is primarily different from that that does not take a route. In other words, as shown in Figure 12, the cutting line 1c''' is formed in a substantially U-shape as to encircle the fastening part of the fastening tape 1bk from three sides. In said cutting line 1c''', its initial end Ps is positioned at an outermost edge 1bsfee in the lateral direction on the second side flaps 1bsf of the second waist part 1b, and from this position, the cutting line 1c''' extends so that the fastening part of the fastening tape 1bk being positioned on the linear peripheral side of the substantially U-shaped route. Finally, similarly to the above mentioned starting end Ps, the cutting line 1c''' reaches the outermost edge 1bsfee in the lateral direction on the second side flaps 1bsf, and a position Pe reaching the outermost edge 1bsfee being referred to as a terminal end Pe of the cutting line 1c'''. Note that once configurations other than the above are generally the same as those in the above stated configuration, the same configurations being denoted by the same reference numerals and descriptions thereof being omitted.

[00101] Furthermore, cutting lines 1ca similar to the cutting lines 1c of the above-mentioned second waist part 1b may be formed in the first waist part 1a in some cases. Figure 13 is a schematic plan view of an absorbent article 1'''' including cut lines 1ca. In this example, the substantially J-shaped cutting lines 1ca, 1ca each having a similar shape to the cutting lines 1c, 1c of the second waist part 1b are formed also on the first side flaps 1asf, 1asf of the waist part 1a. Then, when each of the cutting lines 1ca, 1ca is cut, the maximum value L1ac of the dimension of the remaining part 1ac in the lateral direction, which remains at the center of the first part of the waist 1a in the lateral direction, becomes less than the maximum value L1a from the dimension of the first waist part 1a in the lateral direction before cutting. Accordingly, when the absorbent article 1'''' is inserted into a waist part 1a after the cut takes the lead, the insertion properties of the same can be improved.

[00102] Incidentally, this substantially J-shaped cutting line, 1ca also includes a straight part 1caL along the longitudinal direction in an outer position in the longitudinal direction, and includes a curved part 1caB in an inner position of this straight part 1caL in the longitudinal direction. longitudinal direction. Here, the position of the straight part 1cL in the lateral direction corresponds to the position of the straight part 1cL of the cut line 1c in the above-mentioned second waist part 1b. If these positions correspond to each other in this way, the remaining part 1ac of the first waist part 1a and the remaining part 1bc of the second waist part 1b in the absorbent article 1'''' after each of the cut lines 1c, 1c, 1ca and 1c to be cut are identical in size to each other in the lateral direction, and accordingly, whichever is used as a front line in the insertion direction, favorable insertion properties can be obtained.

[00103] Incidentally, at the beginning of the description, it was described that the diaper 1 of the present configuration is especially suitable for a low weight infant 101 of 3000 grams or less. In addition, when taking into account that diaper 1 can effectively solve the above problem associated with positioning posture and minimal handling, it can be considered that diaper 1 is more effective in a case in which child 1 is more likely to have the posture of positioning and minimal handling being most necessary. This is the case where the patient's weight is less.

[00104] Thus, the diaper 1 of the present configuration is preferably applied to children with a low birth weight of 500 grams or more and less than 2500 grams, being more preferably applied to children with a very low birth weight of 1000 grams or more and less than 1500 grams, and even more preferably applied to children with extremely low birth weights of less than 1000 grams.

[00105] Furthermore, the diaper 1 of the present configuration is specialized for low weight children 101 and thus being smaller than existing diapers 1 for newborn children. For example, the product length of diaper for newborn children is 365mm, and the circumference length L1HB of the waist opening 1HB in a clothed state is 304mm. On the other hand, in the diaper 1 of the present configuration, the length of the product L1 (Figure 1) is 210 mm to 330 mm, and the circumference length L1BH of the waist opening in a worn state being 160 to 295 mm.

[00106] Note that, the length of the product L1 is measured by, for example, allowing the diaper 1 to be in an unfolded state. In other words, as shown in Figure 2, in the unfolded state, the attachment of the fastening tapes 11, 11 to the target region 1at is first released, and then the first waist part 1a, the crotch part 1m and the second part of the waist 1b are in a state of being harmonized in the longitudinal direction. In addition, the diaper 1 is brought into an extended state in the longitudinal direction until the contraction of the barrier cuff sheets 6 due to the elastic members of the barrier cuffs 6r and the contraction of the crotch side flaps 1msf, 1msf based on the elastic members encircling the leg 21, 21 being justly eliminated. Then, the maximum dimension L1 in the longitudinal direction in this extended state is measured, and its measured value will be the aforementioned product length L1.

[00107] However, the circumference length L1HB of the above-mentioned waist opening 1HB is measured in a state in which a pair of fastening tapes 11, 11 are brought into a fastening state with the fastening tapes superimposed. Figure 14 is an explanatory diagram thereof. Note that, henceforth, for convenience of explanation, the fixing tape 11 of the second side flap 1bsf positioned on the left side in Figure 14 is referred to as a "left side tape 11-1", and similarly the fixing tape 11 of the second flap side 1bsf positioned on the right side in Figure 14 being referred to as a “right side tape 11-2”.

[00108] First, as a preparation for measurement, two clamping strips 11-1 and 11-2 are brought into clamping state with the clamping strips superimposed. Thus, as illustrated in Figure 14, the male member 11m of the right side tape 11-2 is attached to the non-skin side face 11-1s of the left side tape 11-1 after the male member 11m of the left side tape 11-1 is fixed to the target region 1at of the first waist part 1a. However, in this case, positioning is performed so that an end 11-2e of the right sideband 11-2 coincides with an end 11m and on the leading side of the male member 11m of the left sideband 11-1, while the central positions C11-1 , C11-2 of these tapes 11-1, 11-2 in the longitudinal direction are aligned with each other. Accordingly, the fixing state with the superimposed fixing tapes is made.

[00109] Then, the waist opening 1HB formed based on this fixing state is extended until the contraction due to the elastic waist members 21 is just eliminated. In said extended state, the circumference length L1HB of the waist opening 1HB is measured, thereby obtaining the circumference length L1BH.

[00110] Incidentally, as an example of the product length L1 and the circumference length L1HB of the waist opening 1HB for low birth weight children, 310 mm and 273.5 mm may be given respectively. Furthermore, as an example of the product length L1 and the circumference length L1HB of the waist opening 1HB for the very low birth weight child, 270 mm and 220 mm respectively can be given. Also, as an example of the product length L1 and the circumference length L1HB of the waist opening 1HB for extremely low birth weight children, 230 mm and 219 mmm can be given respectively. == Other Settings ==

[00111] Although the configurations of the present invention have been described above, the above-described configurations are intended to facilitate understanding of the present invention, and the present invention is not to be construed as being limited to the configurations. And needless to say, various modifications and improvements may be made to the present invention without departing from the spirit thereof, and equivalents thereof will fall within the present invention. For example, the following modifications will be possible.

[00112] In the above configuration, perforations are exemplified as examples of cut lines 1c, 1c', 1c", 1c''' and 1ca. However, the invention is not limited thereto. Thus, if the cut lines 1c, 1c', 1c", 1c''' and 1ca are cut more easily than their surrounding parts, the cut lines can be composed of anything other than perforations. For example, the cuts may be arc-shaped or wave-shaped cuts rather than straight cuts that are located along a direction in which the cut lines 1c, 1c', 1c”, 1c''' and 1ca shall extend, or the flat shape of the through-hole may be formed as a circular shape and an elliptical shape. Furthermore, the invention is not limited to a form in which a plurality of through holes are placed. For example, the cut lines 1c, 1c', 1c", 1c''' and 1ca may be formed by a plurality of recesses formed for shrinkage and welding in the thickness direction.

[00113] In the above configuration, as shown in Figures 6, 10, 11 and 12, the cutting lines 1c, 1c', 1c”, 1c''' are each formed in the second side flap 1bsf of the second waist part 1b, so that the part 1bk on which the tape base material 11a of the fastening tape 11 is fixed is cut together with the fastening tape 11 in the second waist part 1b. However, the invention is not limited thereto. Thus, as shown in Figure 15, the cutting line may not be formed on the second side flap 1bsf, and the cutting line 1c11a may be formed only on the fastening tape 11. The details are as follows. When the absorbent article 1 is used as an absorbent pad 1p, the projecting part 11p of the fastening tape 11, which projects from the second waist part 1b of the fastening tape 11, which projects from the second waist part 1b in the lateral direction, it is primarily in the form of a dressing operation. Thus, if at least this projecting part 11p is cut from the second waist part 1b, the absorbent article 11p is cut from the second waist part 1b, the absorbent article 1p after cutting can be used as the absorbent pad 1p without any problem. Accordingly, as illustrated in Figure 15, the cutting line 1c11a may be formed for the base material of the tape 11a of the fastening tape 11.

[00114] Here, when a position where said cutting line 1c11a is formed will be described in detail, in the base material of tape 11a of fastening tape 11, the cutting line 1c11a is formed along the longitudinal direction at the same position as the edge outermost 1bsfee of the side flap 1bsf of the second part of the waist 1b in the lateral direction. Accordingly, if the cutting line 1c11a is cut, a state in which there is no projecting part 11p of the fastening tape qq can be reached. Thus, a state in which there is no projecting part that partially projects from the second waist part 1b in the lateral direction. This prevents the pad 1p from being widely caught when the pad 1p is inserted below the low weight infant 101 placed in the prone position with the second waist part 1b taking the lead, and the padding 1p can be quickly inserted. [List of Reference Signs] 1: : disposable diaper (absorbent article), 1'''': absorbent article, 1HB: waist opening, 1HL: opening encircling the leg, 1a: first part of the waist, 1ac: remaining part , 1asf: first side flap, 1at: target region, 1b: second part of the waist, 1bc: remaining part (central part). 1bc1: narrow waist part, 1bc2: wide waist part, 1be1: outer edge, 1be2: outer edge, 1bsf: second side flap (extreme part), 1bsef2: outermost part, 1bsfee: outermost edge, 1bHB: one part to be the waist opening, 1bHL: a part to be the opening encircling the leg, 1bk: fastening tape attachment part (a part to which the fastening tape is attached); 1c: cutting line, 1c': cutting line, 1c”: cutting line, 1c''': cutting line, 1c1: first part (first part of cutting line), 1c2: second part (second part of cutting line), 1c3: third part (curved part), 1cL: straight part, 1cB: curved part, 1cB1: part, 1cB2: part, 1cBa: part, 1cBb: part, 1ca: cutting line, 1caL: straight part , 1caB: curved part, 1c11a: cut line, 1m: crotch part, 1msf: crotch part side flap, 1sf: side flap, 1p: absorbent pad (absorbent article), 2: top sheet, 2e: end part , 3: absorbent body, 3c: absorbent core, 3rs: core wrap sheet; 4: leak-proof sheet, 5: outer sheet, 6: barrier hem sheet (barrier hem forming part), 6g: barrier hem, 6j: fixing part, 6k: base end part, 6r: elastic member of barrier hem , 6s: raised part, 6seLa: extreme part, 6seLb: extreme part, 6sea: extreme part, 6seb: extreme part, 11: fixing tape, 11a: tape base material, 11ap: projecting part (flap part), 11m : male part; 11me: extremity, 11-1: left side tape, 11-1s: non-skin side face, 11-2: right side tape, 11-2e: tip, 11p: projecting part, 21: elastic member encircling the leg (limb elastic band), 101: low weight child (target user), C1: center line, C11-1: center position, C11-2: center position, P1c: cross position, PLB: limit position, Ps: initial end, Pe: terminal end, A21: one part.

Claims (13)

1. “ABsorbent article”, which includes a longitudinal direction, a lateral direction and a thickness direction that are orthogonal to the first waist part (1a) with each other, where one, a crotch part (1m) and a second waist part (1b), which are harmonized in this order in the longitudinal direction, and fastening tapes (11) which are respectively attached to each of the extreme parts of the second waist part (1b) in the lateral direction, the absorbent article (1p) being enabled to be used as a tape-type disposable diaper by attaching the fastening tapes (11) respectively to the first waist part (1a) to form a waist opening (1HB) and a pair of openings encircling the legs (1HL), lines of cut 1c, 1c, being formed in an unfolded state of the absorbent article (1), characterized in that the cut lines 1c, 1c each are used to cut at least a protruding part (11p) from each of the fastening strips (11) , the projecting part (11p) projecting externally of the second waist part (1b) in the lateral direction, and in that the absorbent article (1p) is enabled to be used as an absorbent pad (1p) without the protruding part (11p) by cutting the projecting part (11ap) in each of the cutting lines (1c, 1c), the cutting lines 1c, 1c, each including a straight part (1cL) and a curved part (1cB) having a curved shape, the straight part (1cL) extending directly along the longitudinal direction of a part to be the waist opening (1HB), the curved part (1cB) being positioned internally of the straight part (1cL) in the longitudinal direction and being displaced externally in the lateral direction when the curved part (1cB) approaches internally in the longitudinal direction. 2. "Absorbent article", according to claim 1, characterized in that the cutting lines 1c, 1c are respectively formed in each position on both sides in the lateral direction by correspondence to each of the fastening tapes (11), and by the cutting lines (1c, 1c) are each formed so as to cut a part to which each of the fastening tapes (11) is attached to the second waist part (1b). 3. "Absorbent article", according to claim 2, characterized in that the maximum value of a space between the cutting lines (1c, 1c) in the lateral direction is less than a maximum value of a dimension of the first part of the waist ( 1a) in the lateral direction. 4. "Absorbent article", according to any one of claims 2 and 3, characterized in that each of the cutting lines (1c, 1c) is formed by a route that extends from a part to be the waist opening (1HB) , to the part to be the opening surrounding the leg (1HL) through an internal position of the part to which each of the fastening tapes (11) is attached to the second part of the waist (1b) in the lateral direction. An "absorbent article" according to any one of the preceding claims, characterized in that the cutting lines (1c, 1c), each include a plurality of through holes extending through the thickness direction, and the plurality of holes of harmonized passage along a direction in which each of the cutting lines (1c, 1c) is to be extended. 6. "Absorbent article", according to any one of the preceding claims, which includes a longitudinal direction, a lateral direction and a thickness direction that are orthogonal to each other, characterized in that it comprises a first waist part (1a), a crotch (1m) and a second waist part (1b) which are matched in this order in the longitudinal direction, and fastening tapes (11) which are respectively attached to each of the end parts of the second waist part (1b) in the lateral direction , the absorbent article (1p) being enabled to be used as a tape-type disposable diaper (1) by attaching the fastening tapes (11) respectively to the first waist part (1a) to form a waist opening (1HB) and a pair of openings encircling the legs (1HL), the cut lines 1c, 1c being formed in an unfolded state of the absorbent article (1p), the cut lines 1c, 1c each being used to cut at least one projecting part ( 11ap) of each of the tapes s of attachment, the projecting part (11ap) projecting externally from the second waist part (1b) in the lateral direction, the absorbent article (1p) being enabled to be used as an absorbent pad (1p) without the projecting part (11ap) by cutting the projecting part (11ap) into each of the cutting lines (1c, 1c), the cutting lines (1c, 1c), each including a plurality of through holes extending through the thickness direction, the plurality of through holes being harmonized along a direction in which each of the cutting lines (1c, 1c) shall extend, the cutting lines (1c, 1c), each including a first part of the cutting line which is formed by the internal extension in the longitudinal direction of a part to be the waist opening (1HB), and a second part of the cutting line which is positioned inside the first part of the cutting line in the longitudinal direction and being positioned in the same position as each of the fixing tapes (11) in the longitudinal direction l, when the radii of the lengths of the through holes occupying length per unit in the direction in which the cut lines (1c, 1c), extended are compared, the radius of the second part of the cut line being less than the radius of the first part of the cut line. 7. "Absorbent article", according to claim 6, characterized in that the cutting lines (1c, 1c) each include a curved part (1cB) having, in an internal position of the second part of the cutting line in the longitudinal direction , a curved shape and being displaced externally in the lateral direction when the curved part (1cB) approaches internally in the longitudinal direction, when the radii of the through-hole lengths occupying length per unit in a direction in which the cutting lines (1c, 1c), if they extend are compared, the radius of the second part of the cutting line being less than the radius of the curved part (1cB). "Absorbent article", according to any one of the preceding claims, characterized in that the elastic members that contract at least the second waist part (1b) and the crotch part (1m) in the longitudinal direction are provided along the longitudinally, the elastic members each being matched close to each of the cutting lines (1c, 1c) in the lateral direction over a predetermined band of the second waist part (1b) in the longitudinal direction, and at least in a part of the predetermined band, the elastic members being positioned internally on the cutting lines (1c, 1c) in the lateral direction. 9. "Absorbent article", according to claim 8, characterized in that the elastic members are elastic members encircling the leg for contraction, in the longitudinal direction, parts being the openings surrounding the legs (1HL) which are respectively positioned on both sides. sides in the lateral direction. 10. "Absorbent article", according to any one of the preceding claims, characterized in that the barrier sheath-like sheet (6) forming parts which are respectively provided along the longitudinal direction being provided in each position on both sides in the lateral direction, the parts forming barrier sheaths (6) each including a base end part (6k) which is unable to rise in the thickness direction, and a raised part which is enabled to rise on a side of the skin in the thickness direction with the end part base (6k) as a support point, the base end part (6k) and the raised part being harmonized in the lateral direction, the raised part rising on the side of the skin in the thickness direction by contraction in the longitudinal direction based on a contraction force exerted on the raised part in the longitudinal direction, and the cutting lines (1c, 1c) are each formed in an external position on the base end part (6k) and the raised part in the l direction ateral. 11. "Absorbent article", according to claim 10, characterized in that on each of the end parts of the raised part in the longitudinal direction, fixing parts (6j, 6j) are respectively formed to fix the end parts so that the end parts are facing downwards on a sheet positioned on a side not of the skin in the thickness direction, and the cut lines (1c, 1c) each being formed in an external position of the fastening part in the lateral direction. 12. "Absorbent article", according to any one of the preceding claims, characterized by a corresponding relationship between a side of the abdomen and a back side of a target user, and the first part of the waist (1a) and the second part of the waist. (1b) be opposed to each other between the tape-type disposable diaper (1) and the absorbent pad. 13. “ABsorbent article”, which includes a longitudinal direction, a lateral direction and a thickness direction that are orthogonal to each other, where a first waist part (1a), a crotch part (1m) and a second waist part (1b), which are harmonized in this order in the longitudinal direction, and fastening tapes (11) which are respectively attached to each of the extreme parts of the second waist part (1b) in the lateral direction, the absorbent article (1) being enabled to be used as a tape-type disposable diaper (1) by attaching the fastening tapes (11) respectively to the first waist part (1a) to form a waist opening (1HB) and a pair of openings encircling the legs (1HL), the cut lines (1c, 1c) being formed in an unfolded state of the absorbent article, characterized in that the cut lines (1c, 1c) are each used to cut at least a projecting part (11ap) from each of the tapes of fixing, the projecting part (11ap) projecting externally in the second waist part (1b) in the lateral direction, the absorbent article (1) being enabled to be used as an absorbent pad (1p) without the projecting part (11ap) by cutting the projecting part (11ap) in each of the lines of cut (1c, 1c), and another cut line is included to cut an extreme part of the first waist part (1a) in the lateral direction.

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