JP6298274B2 - Pants-type wearing article - Google Patents

Description

  The present invention relates to a pants-type wearing article such as a pants-type disposable diaper.

  Conventionally, a pants-type disposable diaper has a longitudinal direction extending from the abdominal side part to the back side part via the crotch part and a transverse direction perpendicular thereto, and the absorbent main body and the non-skin facing of the absorbent main body A pair of side seals, wherein the left and right side edges of the exterior body in the front body and the left and right side edges of the exterior body in the back body are joined to each other. What is formed with a part, a waist opening, and a pair of leg openings is widely used. Such a pants-type disposable diaper can be removed by breaking the side seal portion and separating this portion. By doing so, for example, when a care recipient such as an infant or an elderly person defecates, the diaper is broken open without dragging the filth from the thigh to the tip of the foot. It can be removed from the crotch while lying on its back.

  Patent Document 1 discloses a pants-type disposable diaper with improved tearability of the side seal portion, which is provided with a break induction cutting structure in the vicinity of the portion sandwiched and joined to the side seal portion in the exterior body. . This fracture-inducing notch structure has an upper notch formed at the waist opening side end (upper end) of the exterior body and a perforated (substantially rectangular) center notch leg through a non-notched portion. It has a portion provided intermittently toward the opening side end portion (lower end portion) and a lower end notch formed at the leg opening side end portion, on one linear base line Are formed of a plurality of cuts and non-cuts.

  In Patent Document 2, as a pants-type disposable diaper that can be easily cut along a cutting line, a plurality of weakening lines are provided on an exterior body in at least one of an abdominal side part, a crotch part, and a back side part. What formed the cutting line part which a part forms in substantially parallel is disclosed. In Patent Document 2, as a method of forming the weakened line part, a method of heating the formation site of the weakened line part in the exterior body in a linear form (for example, heat sealing), A method of processing into a perforated shape and a method of ultrasonically processing the portion to be formed into a line (for example, ultrasonic sealing) are described.

JP 2010-136787 A JP 2006-141854 A

  As described in Patent Documents 1 and 2, the pants-type disposable diaper in which the breakage induction part is processed into a perforation has a fine perforation, so it is difficult to find the breakage induction part, and the breakage at the breakage induction part There was room for improvement in sex.

  Therefore, the subject of this invention is providing the underpants type wearing article which has a fracture | rupture induction | guidance | derivation part excellent in visibility and fracture nature, and can be easily fractured | released from a wearing state.

  The present invention has an abdominal side portion disposed on the abdomen side of the wearer, a back side portion disposed on the back side, and a crotch portion positioned therebetween, and from the abdominal side portion to the crotch portion. A longitudinal direction extending to the dorsal side and a transverse direction perpendicular thereto, and the absorbent body and the non-skin facing surface side of the absorbent body are arranged to fix the absorbent body And a pair of side edges along the longitudinal direction of the backside exterior body constituting the abdominal side portion and the backside exterior body constituting the backside portion of the exterior body are joined together, A pants-type wearing article in which a side seal part, a waist opening part, and a pair of leg opening parts are formed, wherein the leg opening part is formed from the waist opening part to a portion arranged around the waist of the wearer in the exterior body. Is provided with a breakage induction cut, and the breakage induction cut is A plurality of holes penetrating the exterior body in the thickness direction are formed so as to form one row in the vertical direction, and each of the plurality of holes has a shape having two or more acute angles in plan view. None, and any two adjacent holes in the longitudinal direction are arranged so that one acute angle and the other acute angle are close to each other, thereby forming a plurality of adjacent portions of acute angles in the breakage induction cut portion The present invention provides a pants-type wearing article in which imaginary lines connecting adjacent portions of a plurality of acute angles extend in the vertical direction.

  ADVANTAGE OF THE INVENTION According to this invention, the underpants type wearing article which has a fracture | rupture induction | guidance | derivation part excellent in visibility and fracture property, and can be easily fractured | released from a wearing state is provided.

FIG. 1 is a perspective view schematically showing a pants-type disposable diaper which is an embodiment of a pants-type wearing article of the present invention. FIG. 2 is a developed plan view schematically showing the skin facing surface side (inner surface side) in the developed and extended state of the diaper shown in FIG. FIG. 3 is an exploded perspective view schematically showing the diaper shown in FIG. 1 with a part (a breakage induction cut portion) omitted. FIG. 4 is a diagram showing a part of the breakage induction cut portion in the diaper shown in FIG. 1, and schematically illustrates the non-skin facing surface side (outer surface side) of the exterior body at the longitudinal end portion (waist end portion) of the diaper. FIG. FIG. 5 is a plan view showing another embodiment of the hole forming the breakage induction cut portion according to the present invention. FIG. 6A to FIG. 6C are plan views schematically showing other embodiments of the breakage induction cut portion according to the present invention. FIG. 7 is a plan view schematically showing still another embodiment of the breakage induction cut portion according to the present invention. FIG. 8A and FIG. 8B are plan views schematically showing still other embodiments of the breakage induction cut portion according to the present invention. FIG. 9 is a view corresponding to FIG. 2 of another embodiment of the pant-type wearing article of the present invention. FIG. 10 is a view corresponding to FIG. 2 of still another embodiment of the pants-type wearing article of the present invention. FIG. 11 is a view corresponding to FIG. 2 of still another embodiment of the pant-type wearing article of the present invention. FIG. 12 (a) is a plan view schematically showing the main part (breaking guide cut-in part) of still another embodiment of the pant-type wearing article of the present invention, and FIG. 12 (b) is shown in FIG. 12 (a). It is a typical top view which shows a mode that the exterior body was fractured | ruptured by the fracture | rupture induction | guidance | derivation cutting part shown. Fig.13 (a) is a top view which shows typically the principal part (fracture induction | guidance | derivation cutting part) of other embodiment of the underpants type wearing article of this invention, FIG.13 (b) is FIG.13 (a). It is a typical top view which shows a mode that the exterior body was fractured | ruptured by the fracture | rupture induction | guidance | derivation cutting part shown. FIG. 14 (a) is a plan view schematically showing the main part (breaking guide cut-in part) of still another embodiment of the pant-type wearing article of the present invention, and FIG. 14 (b) is shown in FIG. 14 (a). It is a typical top view which shows a mode that the exterior body was fractured | ruptured by the fracture | rupture induction | guidance | derivation cutting part shown. FIG. 15 (a) is a plan view schematically showing the main part (breaking guide cut-in part) of still another embodiment of the pant-type wearing article of the present invention, and FIG. 15 (b) is shown in FIG. 15 (a). It is a typical top view which shows a mode that the exterior body was fractured | ruptured by the fracture | rupture induction | guidance | derivation cutting part shown. FIG. 16 (a) is a plan view schematically showing the main part (breaking induction cut-out part) of still another embodiment of the pant-type wearing article of the present invention, and FIG. 16 (b) is shown in FIG. 16 (a). It is a typical top view which shows a mode that the exterior body was fractured | ruptured by the fracture | rupture induction | guidance | derivation cutting part shown.

  Hereinafter, the pants-type wearing article of the present invention will be described based on preferred embodiments with reference to the drawings. As shown in FIGS. 1 to 3, the pants-type disposable diaper 1 of the present embodiment is disposed on the non-skin facing surface side of the absorbent main body 2 and the absorbent main body 2 to fix the absorbent main body 2. The exterior body 3 is provided. FIG. 2 is an unfolded plan view showing the unfolded and extended state of the diaper 1. This “unfolded and unfolded state” means that the diaper 1 is separated by the side seal portion S to be unfolded, and the unfolded state of the diaper 1 is shown. Is a state in which the elastic member of each part is extended to the design size (same as the size when flattened in a state where the influence of the elastic member is completely eliminated). In the present specification, the skin facing surface is a surface (side relatively close to the wearer's skin) directed to the skin side of the wearer in the wearing state in the diaper 1 and its constituent members (for example, the absorbent main body 2). Yes, the non-skin facing surface is the surface (the side relatively distant from the wearer's skin) that faces the opposite side of the skin side of the wearer in the wearing state in the diaper 1 and its constituent members.

  The diaper 1 includes an abdominal side A disposed on the abdomen side of the wearer in a worn state, a back side C disposed on the back side, and a crotch part positioned between them and disposed on the crotch part of the wearer. B and a vertical direction X and a horizontal direction Y orthogonal thereto. The longitudinal direction X of the diaper 1 is a direction that extends between the abdominal side A and the back side C via the crotch B. The crotch part B is an area where the exterior body 3 is not disposed.

  As shown in FIGS. 2 and 3, the absorbent main body 2 has a rectangular shape that is long in the same direction as the longitudinal direction X of the diaper 1. The absorbent main body 2 is bonded to the central portion of the outer package 3 with an adhesive so that the longitudinal direction thereof coincides with the longitudinal direction X of the diaper 1 in the expanded and extended state. The absorbent main body 2 includes a liquid-permeable surface sheet 21 that forms a skin-facing surface, a liquid-impermeable or liquid-permeable or water-repellent back sheet 22 that forms a non-skin-facing surface, and both sheets 21 and 22. A liquid-retaining absorbent 23 is interposed therebetween, and these members are integrated by a known joining means such as an adhesive. As the top sheet 21, the back sheet 22, and the absorber 23, various types conventionally used for this type of absorbent article can be used without particular limitation. For example, various nonwoven fabrics or apertured films can be used as the top sheet 21, and a resin film, a laminate of a resin film and a nonwoven fabric, or the like can be used as the back sheet 22. As the absorbent body 23, an aggregate of fiber materials such as pulp fibers or those having an absorbent core configured to contain water-absorbing polymer particles can be used, and the absorbent core is a liquid-permeable core. It may be covered with a wrap sheet.

  Side cuffs 24, 24 made of a liquid-resistant or water-repellent and breathable sheet material are provided on the left and right sides along the longitudinal direction X of the skin-facing surface of the absorbent main body 2. In the vicinity of the free end of each side cuff 24, one or more thread-like side cuff elastic members 25 are arranged in an extended state. Each side cuff 24 stands up when the side cuff elastic member 25 arranged in the stretched state contracts in the wearing state of the diaper 1 and prevents the liquid from flowing out to the side.

  The exterior body 3 is configured to include sheet materials 35 and 36 and a plurality of exterior body forming elastic members 33 fixed to the sheet materials 35 and 36. As shown in FIGS. 1 to 3, the exterior body 3 in the present embodiment is disposed on the abdomen side of the wearer when worn (constituting the abdominal side portion A in the exterior body 3) and the back. It divides | segments into the back side exterior body 32 (which comprises the back side part C in the exterior body 3) distribute | arranged to the side. That is, the pants-type disposable diaper 1 of the present embodiment includes an abdominal exterior body 31 disposed on the wearer's belly side, a back exterior body 32 disposed on the wearer's back side, 32 and a longitudinally long absorbent main body 2 fixed over the two, both side edges 3s, 3s along the longitudinal direction of both exterior bodies 31, 32 are joined together to form a pair of side seal portions S, S, A waist opening WH and a pair of leg openings LH, LH are formed. In the side seal portion S, the ventral-side exterior body 31 and the back-side exterior body 32 are joined by known joining means such as an adhesive, heat seal, high-frequency seal, and ultrasonic seal.

  The abdominal-side exterior body 31 and the back-side exterior body 32 are each an outer-layer sheet material 35 that forms a non-skin facing surface (the outer surface of the diaper 1), and an inner-layer sheet material disposed on the inner surface side of the outer-layer sheet material 35. 36 and a plurality of thread-like or belt-like elastic members 33 fixed between the sheet members 35 and 36 with an adhesive (not shown), and the development of the diaper 1 as shown in FIG. In the state, it has a long rectangular shape in the lateral direction Y. The two sheet members 35 and 36 are joined to each other at a predetermined portion by an adhesive (not shown). In the ventral exterior body 31 and the back exterior body 32, as shown in FIG. 2, the plurality of elastic members 33 are arranged substantially linearly in the lateral direction Y and extend in the lateral direction Y. Thus, they are arranged at a predetermined interval in the vertical direction X. As the sheet materials 35 and 36 constituting the exterior body 3, nonwoven fabrics produced by various manufacturing methods are preferably used.

  As shown in FIG. 3, the outer layer sheet material 35 has the same length in the lateral direction Y as that of the inner layer sheet material 36, but the length in the longitudinal direction X is longer than that of the inner layer sheet material 36. The outer layer sheet material 35 has an outer end 36a in the longitudinal direction X of the inner layer sheet material 36 when the both sheet materials 35 and 36 are laminated so that the inner ends 35b and 36b in the longitudinal direction X coincide with each other. An extending portion 35E extending outward in the main body longitudinal direction X. As shown in FIG. 2, the extended portions 35E of the outer layer sheet material 35 of the ventral side exterior body 31 and the back side exterior body 32 are folded back toward the inner layer sheet material 36, and the sheets 35 facing each other by the folding back. (35E), The edge part 2a of the vertical direction X of the absorptive main body 2 is distribute | arranged between 36. The sheets 35 (35E) and 36 facing each other are joined to each other by an adhesive (not shown) at a predetermined portion.

  The elastic member 33 extends between the outer layer sheet material 35 and the inner layer sheet material 36 at the waist portion D in each of the ventral portion A (ventral side exterior body 31) and the back side portion C (back side exterior body 32). The waist gathers are formed by being fixed by. The elastic member 33 of the waist part D of the ventral part A and the elastic member 33 of the waist part D of the dorsal part C have the full length in the lateral direction Y of the ventral part A or the dorsal part C, as shown in FIG. It stretches continuously over the entire length, and the stretchability inherent in the whole can be expressed. The waist part D is a part located around the waist of the wearer, and is usually 1 to 15% of the total length in the longitudinal direction X of the diaper 1 from each of the longitudinal end parts 1a, 1a (waist end parts) of the diaper 1. It is an area up to the length of.

  In addition, an elastic member 33 is provided between the outer layer sheet material 35 and the inner layer sheet material 36 in the waistline portion E in each of the abdominal side portion A (abdominal side exterior body 31) and the back side portion C (back side exterior body 32). By being fixed in the extended state, a waistline gather is formed. As shown in FIG. 2, the waistline E of the abdominal side A has the diaper 1 in an unfolded state in which the elastic members of the respective parts are extended to expand in a flat shape, the abdominal side A is the upper side, and the back side C is When considered as the lower side, this is an area located below the waist part D and above the crotch part B. The waistline portion E of the back side portion C is a region that is substantially in the same position as the waistline portion E of the ventral side portion A when the diaper 1 is turned upside down from that shown in FIG.

  In the present embodiment, the elastic member 33 of the waist portion E of the abdominal part A (abdominal exterior body 31) is overlapped with the absorbent main body 2 (absorbent core 5), as shown in FIG. The elastic member 33 has a non-stretchable portion 34 in which the development of stretchability is suppressed, and thereby the stretchability is partially suppressed. In the elastic member 33 of the waist part E of the abdominal side A, the non-stretchable part 34 does not stretch, but other parts other than the non-stretchable part 34 (parts located outside in the lateral direction Y of the absorbent main body 2). Expands and contracts. Therefore, in the waistline E of the abdominal side A, a pair of waistline gathers is formed on the left and right sides along the vertical direction X, excluding the region where the absorbent main body 2 is disposed. As described above, since the elastic member 33 has the non-stretchable portion 34 in the portion overlapping the absorbent main body 2, the end of the absorbent main body 2 in the vertical direction X without causing vertical wrinkles in the absorbent main body 2. It is possible to follow the wearer's body, thereby effectively preventing leakage and causing inconveniences such as marks caused by the top of the heel generated in the absorbent main body 2 hitting the skin. Effectively prevented. As a method for forming the non-stretchable portion 34, a method usually used in this type of disposable diaper can be used without any particular limitation. For example, a method of finely dividing the elastic member 33 so as not to expand or contract, or bonding For example, a method of preventing the elastic member 33 from expanding and contracting by bonding using an agent or the like.

  On the other hand, the elastic member 33 of the waist part E of the back side C (back side exterior body 32) is similar to the elastic member 33 of the waist part D of the abdominal side A and the back side C, as shown in FIG. In addition, it extends continuously over the entire length in the body width direction Y of the back side portion C, and is capable of exhibiting the inherent stretchability over the entire length.

  As one of the main features of the diaper 1 of this embodiment, as shown in FIG.1 and FIG.2, it is leg from waist opening part WH to the part E and waist part D which are distribute | arranged to the circumference | surroundings of the wearer in the exterior body 3. The point by which the fracture | rupture induction | guidance | derivation cutting part 4 is provided over the opening part LH is mentioned. The breakage induction cut portions 4 are arranged such that a plurality (three or more) of holes 5 penetrating the exterior body 3 (outer layer sheet material 35, inner layer sheet material 36) in the thickness direction form one row in the vertical direction X. Is formed. In the diaper 1, the breakage incision 4 is formed in the lateral direction Y of the absorbent main body 2 in each of the ventral exterior body 31 and the back exterior body 32, that is, the absorbent main body 2 and the side seal portion S. 4 are provided in total. As described above, in the present embodiment, a total of four breakage induction cuts are provided on both the ventral side A and the back side C, but the arrangement and number of breakage induction cuts are not particularly limited. For example, the breakage incision part may be provided only in the ventral part A or may be provided only in the dorsal part C. The diaper 1 can break the exterior body 3 at the side seal portion S in the same manner as a normal diaper, and can be removed by breaking the side seal portion S in the wearing state and separating this portion. In addition to the side seal portion S, by having the breakage guide cut portion 4, the diaper 1 is easily broken and the work of removing the worn diaper 1 from the wearer can be performed more easily. .

  As shown in FIG. 4, each of the plurality of holes 5 forming the breakage induction cut portion 4 (portion surrounded by a dotted line in FIG. 4) has two acute angles (angles less than 90 °) 5α in plan view. Arbitrary two holes 5 and 5 that have the above-described shape and are adjacent to each other in the vertical direction X are arranged so that one acute angle 5α and the other acute angle 5α are close to each other, whereby the breakage induction cut portion 4 is formed. A plurality of acute angle proximity portions 50 are formed, and an imaginary line Lx connecting the plurality of acute angle proximity portions 50 is a straight line (non-curve) extending in the vertical direction X. In this embodiment, the virtual lines Lx extend in a straight line as described above. However, if the virtual lines Lx extend in the vertical direction X, it is not necessary to extend in a straight line. For example, the virtual lines Lx are arranged in a staggered pattern in the vertical direction X. It may extend. The imaginary line Lx can be a rupture line when the exterior body 3 is ruptured at the rupture induction cut portion 4. When the diaper 1 (exterior body 3) is torn at the breakage guide cut portion 4, the diaper 1 is positioned on both sides in the lateral direction Y around the virtual line Lx at the longitudinal end 1a (waist end) of the diaper 1. What is necessary is just to pick a part (part shown with the code | symbol G1, G2 in FIG. 4) with fingers, and to pull to the horizontal direction Y, By such operation, the some hole 5 which forms the fracture | rupture induction | guidance | derivation incision part 4 is the vertical direction edge part 1a The diaper 1 (exterior body 3) can be easily broken along the imaginary line Lx as a result of splitting from the side closer to the left and right with the imaginary line Lx as a boundary.

  In the present embodiment, the hole 5 has a directional shape in plan view, specifically a rhombus shape, and has two acute angles 5α. The plurality of rhombus-shaped holes 5 in plan view have the entire length between the waist opening WH and the leg opening LH, with the diagonal line (long axis) connecting the two acute angles 5α and 5α aligned with the vertical direction X. The diagonal line coincides with a virtual line Lx that connects the adjacent portions 50 of acute angles. In the acute angle proximity portion 50, one acute angle 5α and the other acute angle 5α are opposed to each other. Here, “one acute angle and the other acute angle are opposite to each other” means that the bisectors of the two acute angles that are close to each other (in FIG. 4, coincide with the virtual line Lx) are on the same straight line. It means that there is.

  The separation distance T (see FIG. 4) between the acute angle 5α of one hole 5 and the acute angle 5α of the other hole 5 that are close to each other is easily determined when the breakage induction cut 4 is used (when the diaper breaks). Is preferably 1 mm or more, more preferably 2 mm or more, and preferably 6 mm or less from the viewpoint of preventing unintentional breakage at the breakage induction cut 4 when not in use (when wearing a diaper). More preferably, it is 4 mm or less, more specifically, preferably 1 mm or more and 6 mm or less, more preferably 2 mm or more and 4 mm or less. Here, “adjacent” means that the separation distance T between the acute angle 5α of one hole 5 and the acute angle 5α of the other hole 5 is 6 mm or less.

  The adoption of the breakage induction cut portion 4 is advantageous in terms of improving the visibility of the breakable portion in addition to improving the breakability of the diaper 1 (the outer package 3). That is, the hole 5 that forms the break guide cut-in portion 4 has a plan view shape (an acute angle) different from a hole that forms a normal perforated break guide portion (rectangular shape, square shape, circular shape, etc. in plan view). 2) The shape of the diaper 1 is excellent when it is visible and it stands out when the diaper 1 is viewed from the outside, so that it can be found immediately when necessary, and the diaper 1 is removed from the wearer. Becomes easier.

From the viewpoint of more surely achieving the above-described operation and effect by the breakage induction cut portion 4, it is preferable to set the size of the hole 5 as follows.
The longitudinal length (long axis length) L1 of the hole 5 is preferably 2 mm or more, more preferably 5 mm or more, and preferably 11 mm or less, more preferably 7 mm or less, more specifically preferably 2 mm. It is 11 mm or less, more preferably 5 mm or more and 7 mm or less.
The lateral length (short axis length) L2 of the hole 5 is preferably 1 mm or more, more preferably 2 mm or more, and preferably 11 mm or less, more preferably 7 mm or less, more specifically preferably 1 mm. It is 11 mm or less, more preferably 2 mm or more and 7 mm or less.
The acute angle 5α of the hole 5 is preferably 1 ° or more, more preferably 5 ° or more, still more preferably 10 ° or more, and preferably 89 ° or less, more preferably 60 ° or less, still more preferably 40 ° or less, and more. Specifically, it is preferably 1 ° to 89 °, more preferably 10 ° to 40 °.

  Hereinafter, other embodiments of the present invention will be described with reference to FIGS. In other embodiments to be described later, constituent parts different from those of the above-described embodiment will be mainly described, and the same constituent parts are denoted by the same reference numerals and description thereof will be omitted. The description of the above embodiment is applied as appropriate to components that are not particularly described.

  The hole forming the breakage induction cut portion according to the present invention is not limited to the one having a contour line including only a straight line in plan view, such as the hole 5 having a rhombus shape in plan view in the above embodiment, as shown in FIG. The contour line may include a curve. The hole 5 ′ shown in FIG. 5 is the same as the hole 5 having a rhombus shape in plan view, except that all four sides are curved inward, and has a substantially rhombus shape having a directional shape in plan view. I am doing. The measurement of the acute angle of the hole whose contour line includes a curve is performed by connecting the vertex of the acute angle and two points at positions 1 mm apart from the acute angle on the two contour lines forming the vertex, respectively. What is necessary is just to measure the angle between the straight lines of the book.

  6A to 6C, the hole 5A has a hexagonal star (hexagonal star, star-shaped hexagonal) shape which is a kind of star polygon in plan view. It has a non-directional shape in plan view. In the form shown in FIGS. 6A and 6B, the elastic member 33 constituting the exterior body 3 has a proximity portion 50 (between the acute angles α and α adjacent to each other) between the hole 5A and the acute angle 5α. It does not cross in the lateral direction Y. When the outer body 3 is ruptured by the breakage induction cut portion 4A, if the elastic member 33 crosses the hole 5A or the acute angle proximity portion 50 in the lateral direction Y as shown in FIG. May decrease. Therefore, it is preferable that the exterior body 3 does not include an elastic member that crosses the hole 5A and the acute angle proximity portion 50, as shown in FIGS. 6 (a) and 6 (b). The elastic member 33 in the form shown in FIG. 6 (a) reaches the edge of the hole 5A, whereas the elastic member 33 in the form shown in FIG. 6 (b) does not reach the edge of the hole 5A. The end of the elastic member 33 in the length direction is at a position spaced apart from the hole 5A by a predetermined distance in the lateral direction Y.

  In the fracture guide cutout portion 4B shown in FIG. 7, the hole 5B has a pentagonal star shape (pentagram, star pentagon) which is a kind of star polygon in plan view, and has a directional shape in plan view. I am doing. In the acute angle proximity portion 50, the acute angle 5α of one hole 5B and the acute angle 5α of the other hole 5B are not opposite to each other, and the bisectors of both acute angles are not on the same straight line. In the fracture guiding cut portion 4B, a virtual line connecting the plurality of acute angle proximity portions 50 extends in the vertical direction X instead of a straight line parallel to the vertical direction X like the virtual line Lx (see FIG. 4) in the embodiment. It is a wavy line.

  Moreover, in the fracture | rupture induction | guidance | derivation cut | incision part 4B, the several hole 5B is distribute | arranged to the vertical direction X at zigzag form. Here, the zigzag pattern means that a plurality of holes 5B are arranged in the vertical direction X at equal intervals, and a plurality of rows (two rows in FIG. 7) are arranged in the horizontal direction Y orthogonal to the vertical direction X. In the direction Y, it refers to an arrangement in which the holes 5B are displaced from each other between two adjacent rows. More specifically, when a plurality of rows in which a plurality of holes 5B are arranged at equal intervals in the vertical direction X are projected in the horizontal direction Y, respectively, between the projected images of the holes 5B in a specific row. In addition, when the projection images of the holes 5B in another row adjacent to the specific row are arranged, it can be said that the plurality of holes 5B are arranged in a staggered manner. The “staggered arrangement” as used in the present invention includes not only a form in which a plurality of holes are perfectly arranged as described above, but also a slight unintended arrangement deviation such as an inevitable deviation in manufacturing. The form in which is generated is also included.

  8A is the same as that shown in FIG. 7 except that the acute angle 5α of one hole 5B and the acute angle 5α of the other hole 5B are opposed to each other in the acute angle proximity portion 50. This is the same as the guide cut portion 4B. Moreover, the fracture | rupture induction | guidance | derivation cutting notch 4D shown in FIG.8 (b) is FIG.8 (except for the point that the planar view shape of 5C which forms this has comprised the crescent moon shape (shape with directionality in planar view). It is the same as the breakage induction cut portion 4C shown in a), and also in the breakage induction cut portion 4D, the acute angle 5α of one hole 5C and the acute angle 5α of the other hole 5C are opposed to each other in the acute angle proximity portion 50.

  In the diaper 1A shown in FIG. 9, the exterior body 3 has extending portions 37 that extend from the peripheral edges of the longitudinal ends 2a, 2a of the absorbent main body 2, and the breakage induction cut-out portion 4E A pair of leg openings LH and LH across the extension lines 2L and 2L from a portion 38 sandwiched between the extension lines 2L and 2L on both side edges along the longitudinal direction X of the absorbent main body 2 in the protruding portion 37 (see FIG. 1), a pair is provided in the lateral direction Y. The extending part 37 includes an extending part 35E of the outer layer sheet material 35 and a part corresponding to the extending part 35E in the inner layer sheet material 36 (a part overlapping the extending part 35E in plan view as shown in FIG. 9). Although configured and not shown in other figures, it also includes diapers of other embodiments described herein. In the diaper 1A having such a configuration, a portion of the longitudinal end 1a (waist end) sandwiched between the pair of breakage induction cuts 4E and 4E is used when the diaper 1A (exterior body 3) is broken. It functions as a part. That is, in the wearing state of the diaper 1A, the abdomen A or the dorsal part C of the abdomen A or the dorsal part C is picked with fingers and pulled downward (the crotch B side). The exterior body 3 can be simultaneously broken by the pair of breakage induction cut portions 4E and 4E.

  In the diaper 1B shown in FIG. 10, the adhesive application part 6 which apply | coats an adhesive agent to the exterior body 3 linearly in the both sides of the horizontal direction Y of the row | line | column of the hole 5A which forms the fracture | rupture induction | guidance | derivation cutting part 4A. Are provided so as to extend in the vertical direction X. The adhesive application unit 6 is provided by applying a hot melt adhesive between the sheet materials 35 and 36 constituting the exterior body 3. In the adhesive application unit 6, both sheet materials 35 and 36 are adhesives. It is joined via. In the breakage guide cut portion 4A, a virtual line Lx connecting the plurality of acute angle proximity portions 50 is a straight line extending in the vertical direction X, and the adhesive application portion 6 along the imaginary line Lx also has a linear shape extending in the vertical direction X in plan view. There is no. In this way, in the exterior body 3 in which a plurality of sheet materials 35 and 36 are laminated, the sheet materials 35 and 36 located on both sides in the lateral direction Y with respect to the hole 5A formed in the exterior body 3. Are bonded to each other at the adhesive application portion 6, when the exterior body 3 is broken at the breakage induction cut portion 4 </ b> A, the sheet materials 35 and 36 are less likely to be displaced and easily broken, During use of the diaper 1B, it is possible to avoid the inconvenience of unintentional breakage at the breakage induction cut portion 4A. Furthermore, it is possible to prevent the elastic member 33 from jumping out from the broken portion after the outer package 3 is broken at the breaking guide cut portion 4A. From the viewpoint of more surely exhibiting such an effect, the length (width) W1 of the linear adhesive portion 6 in the lateral direction Y is preferably 0.1 mm or more, more preferably 0.5 mm or more, and Preferably it is 10 mm or less, More preferably, it is 2 mm or less, More specifically, Preferably it is 0.1 mm or more and 10 mm or less, More preferably, it is 0.5 mm or more and 2 mm or less.

  In the diaper 1 </ b> C shown in FIG. 11, an adhesive application portion 7 is formed by applying an adhesive such as a hot melt adhesive around each of the plurality of holes 5 </ b> A forming the breakage induction cut portion 4 </ b> A in the exterior body 3. ing. The adhesive application portion 7 is provided by applying a hot melt adhesive between the sheet materials 35 and 36 constituting the exterior body 3. In the adhesive application portion 7, both the sheet materials 35 and 36 are adhesives. It is joined via. In this way, by fixing the periphery of the hole 5A with an adhesive, the hardness of the periphery is improved as compared with that before application of the adhesive. Therefore, the exterior body 3 is easily broken at the breakage induction cut portion 4A. Further, it is possible to avoid the inconvenience of unintentional breakage at the breakage induction cut portion 4A during use of the diaper 1C. From the viewpoint of more surely exhibiting such an effect, the length (width) W2 of the linear bonding portion 7 in the lateral direction Y is longer than the lateral length L2 of the hole 5A, preferably 1.2 mm. More preferably, it is 2.2 mm or more, and preferably 40 mm or less, more preferably 20 mm or less, more specifically 1.2 mm or more and 40 mm or less, and further preferably 2.2 mm or more and 20 mm or less.

  In the diaper 1D shown in FIG. 12, a cut-out region sandwiched between a pair of breakage guide cut-out portions 4A and 4A arranged in parallel in the lateral direction Y on a portion E and a waist portion D arranged around the waist of the wearer 3 in the exterior body 3. 8 is provided. As shown in FIG. 12A, each of the pair of breakage guide cuts 4A and 4A is provided over the entire length between the waist opening WH and the leg opening LH. In the diaper 1D having such a configuration, the longitudinal end of the cut region 8 on the side of the waist opening WH functions as a knob when the diaper 1A (the outer package 3) is broken. That is, in the wearing state of the diaper 1D, as shown in FIG. 12 (b), by picking such a knob of the abdominal part A or the dorsal part C with fingers and pulling it downward (the crotch B side) The exterior body 3 of the abdominal side A or the back side C can be simultaneously broken by the pair of breakage induction cut portions 4A and 4A, and the cut region 8 can be separated from the exterior body 3. From the viewpoint of facilitating separation of the cut region 8, the length (width) W3 of the cut region 8 in the lateral direction Y is preferably 11 mm or more, and preferably 90 mm or less, more preferably 30 mm or less, more specifically. Is preferably 11 mm or more and 90 mm or less, more preferably 11 mm or more and 30 mm or less.

  The diaper 1E shown in FIG. 13 is the same as the diaper 1D shown in FIG. 12 except that the length of the breakage induction cut portion 4A is different. In the diaper 1E, one of the pair of breakage guide cuts 4A and 4A arranged on both sides in the lateral direction Y across the cut region 8 (the right breakage guide cut 4A in FIG. 13A) is: While it is provided over the entire length between the waist opening WH and the leg opening LH, the other reaches the waist opening WH, but does not reach the leg opening LH. A non-opening portion 80 in which no hole 5A is formed is formed on the extension line of the other breakage guide cutout portion 4A toward the leg opening LH side. Therefore, in the wearing state of the diaper 1E, in the abdominal side A or the back side C, the vertical direction end on the waist opening WH side of the cutout region 8 is used as a knob, and this is picked with fingers (lower crotch B As shown in FIG. 13 (b), the cut region 8 is completely separated from the exterior body 3 at one of the breakage induction cuts 4A, but at the other breakage induction cutout 4A, as shown in FIG. The cut-out region 8 is not cut off from the exterior body 3 without being cut off from the outer body 3. When the cut area 8 is completely cut off from the exterior body 3 as in the diaper 1D, the cut area 8 is discarded as garbage, but the diaper 1E is thus cut off. The exterior body 3 can be broken without separating 8, and there is an advantage that no dust is generated when the exterior body 3 is broken.

  The diaper 1F shown in FIG. 14 is the same as the diaper 1D shown in FIG. 12 except that the side seal portion S exists in the cutout region 8. With such a configuration, it is possible to break the exterior body 3 in the vicinity of the side seal portion S more easily than the conventional breakage of the exterior body 3 at the side seal portion S.

  In the diaper 1G shown in FIG. 15 and the diaper 1H shown in FIG. 16, a member that functions as a knob when pulling the region 8 with fingers is provided at or near the longitudinal end of the cut region 8. Yes. In diaper 1G, as shown to Fig.15 (a), the part corresponded to the vertical direction edge part by the side of the waist opening WH of the cutting area 8 in the vertical direction edge part 1a (waist edge part) is a peripheral part. Further, the protrusion 81 is formed to protrude outward in the vertical direction X, and the protrusion 81 functions as the knob as shown in FIG. Thus, the protrusion 81 may not be configured from a part of the exterior body 3 (the outer layer sheet material 35 and / or the inner layer sheet material 36), and may be configured from a separate member from the exterior body 3. . Moreover, although not shown in figure, as for the protrusion part 81, the longitudinal direction edge part by the side of the waist opening WH of the cut-out area | region 8 or its vicinity is thickness direction outward rather than a peripheral part (non-skin opposing surface side of the exterior body 3). The protrusion may be a protrusion that protrudes in the vertical direction, or is attached to the longitudinal end of the cutout region 8 on the waist opening WH side or the outer surface in the vicinity thereof (the non-skin facing surface of the outer layer sheet material 35). Further, the protrusion may be a separate member from the exterior body 3.

  In the diaper 1 </ b> H shown in FIG. 16, a waste tape 82 is attached to the outer surface (the non-skin-facing surface of the outer layer sheet material 35) at the longitudinal end of the cutout region 8 on the waist opening WH side. Functions as the knob. The waste tape 82 is configured in the same manner as that conventionally used as a sealing tape for a packaging material that wraps an absorbent article in an individual package of absorbent articles such as sanitary napkins. As shown in (a), the outer packaging body of the diaper 1H is folded in the longitudinal direction of the disposal tape 82, and the folded state is maintained by the fastening agent (pressure-sensitive adhesive or the like) of the disposal tape 82. At the time of use, as shown in FIG. 16 (b), the tip of the waste tape 82 is picked up with fingers and pulled, and functions as the knob.

  As mentioned above, although embodiment of this invention was described, this invention is not restrict | limited to the said embodiment, It can change suitably. For example, in the above-described embodiment, the exterior body 3 is divided into the abdominal exterior body 31 and the back exterior body 32, and the absorbent main body 2 is fixed across the sheet members 31, 32. The pants-type wearing article of the present invention is not limited to such a configuration. For example, the exterior body is not divided into the ventral part and the dorsal part, and extends to the ventral part, the crotch part, and the dorsal part. An exterior body such as an hourglass shape may be used. Moreover, in the said embodiment, the elastic member 33 of the waist part E of the abdominal part A (ventral side exterior body 31) suppressed the expression of the elasticity of this elastic member 33 in the part which overlaps with the absorptive main body 2. FIG. Although it has the non-stretchable part 34, it does not have the non-stretchable part 34 and has the side of the abdominal side part A like the elastic member 33 of the waist part E of the back side part B (backside exterior body 32). It may extend continuously over the entire length in the direction Y, and may be capable of expressing the inherent stretchability over the entire length. Moreover, although the said embodiment is an example which applied this invention to the underpants type disposable diaper, this invention is applicable similarly to other wearing articles, for example, a shorts type sanitary napkin. All the parts of only the one embodiment described above can be used together as appropriate. The following additional notes are disclosed with respect to the embodiment of the present invention described above.

<1>
The ventral portion disposed on the abdomen side of the wearer, the dorsal side portion disposed on the dorsal side, and a crotch portion positioned therebetween, and the dorsal side from the abdominal side portion through the crotch portion An absorbent main body, and an exterior body that is disposed on the non-skin-facing surface side of the absorbent main body and fixes the absorbent main body. The both side edges along the longitudinal direction of each of the abdominal exterior body constituting the abdominal side part and the back side exterior body constituting the back side part in the exterior body are joined, and a pair of side seal parts, A pants-type wearing article in which a waist opening and a pair of leg openings are formed,
In the outer body, a portion disposed around the waist of the wearer is provided with a breakage incision from the waist opening to the leg opening, and the breakage incision is formed in the thickness direction. And a plurality of holes penetrating through are formed so as to form one row in the vertical direction,
Each of the plurality of holes has a shape having two or more acute angles in a plan view, and any two adjacent holes in the vertical direction are arranged so that one acute angle and the other acute angle are close to each other. By doing so, a plurality of adjacent portions of acute angles are formed in the breaking induction cut portion, and a virtual line connecting the adjacent portions of the plurality of acute angles extends in the vertical direction.
<2>
The pants-type wearing article according to the above <1>, wherein one acute angle and the other acute angle are opposed to each other in a proximity portion between the acute angles.

<3>
The longitudinal length (long axis length) L1 of the hole is preferably 2 mm or more, more preferably 5 mm or more, and preferably 11 mm or less, more preferably 7 mm or less <1> or <2> Pants-type wearing article as described.
<4>
The lateral length (short axis length) L2 of the hole is preferably 1 mm or more, more preferably 2 mm or more, and preferably 11 mm or less, more preferably 7 mm or less <1> to <3> The underpants type wearing article as described in any one of these.
<5>
The acute angle of the hole is preferably 1 ° or more, more preferably 5 ° or more, further preferably 10 ° or more, and preferably 89 ° or less, more preferably 60 ° or less, and still more preferably 40 ° or less. The underpants type wearing article as described in any one of <1>-<4>.
<6>
Any one of the above items <1> to <5>, wherein the plurality of holes have a rhombus shape or a hexagonal star shape (hexagonal star, star-shaped hexagonal shape) which is a kind of star polygon. The article for wearing underpants type.
<7>
The pants-type wearing article according to any one of <1> to <6>, wherein the exterior body does not include an elastic member that traverses the adjacent portion between the hole and the acute angle.
<8>
The said imaginary line is the underpants type wearing article as described in any one of said <1>-<7> currently extended in the straight line shape in the vertical direction.

<9>
The pants-type wearing article according to any one of <1> to <8>, wherein the plurality of holes are arranged in a staggered pattern in the vertical direction.
<10>
The ventral-side exterior body has an extending portion that extends from a peripheral edge of the longitudinal end portion of the absorbent main body, and the breakage induction cut portion extends in the longitudinal direction of the absorbent main body at the extending portion. Any one of the above <1> to <9>, which is provided in a pair in the lateral direction so as to extend from the portion sandwiched between the extension lines on both side edges along the extension line to the pair of leg openings. The article for wearing underpants type.

<11>
Adhesive application portions formed by linearly applying an adhesive to the exterior body are provided so as to extend in the vertical direction on both lateral sides of the row of holes forming the breakage induction cut portions. The pants-type wearing article according to any one of <1> to <10>.
<12>
The length (width) W1 in the lateral direction of the adhesive-applied portion applied in a linear form is preferably 0.1 mm or more, more preferably 0.5 mm or more, and preferably 10 mm or less, more preferably 2 mm. The pants-type wearing article according to <11>, wherein:

<13>
The underpants-type wearing article according to any one of <1> to <10>, wherein an adhesive is applied around the plurality of holes in the exterior body.
<14>
The lateral length (width) W2 of the application part of the adhesive part is longer than the lateral length L2 of the hole, preferably 1.2 mm or more, more preferably 2.2 mm or more, and preferably 40 mm. The pants-type wearing article according to <13>, further preferably 20 mm or less.

<15>
A cutout region sandwiched between a pair of the breakage guide cutouts arranged in parallel in the lateral direction is provided in a portion of the exterior body that is arranged around the waist of the wearer, and a longitudinal end portion of the cutout region is formed by a finger. The pants-type wearing article according to any one of <1> to <14>, wherein the cut region is separable from the exterior body by picking and pulling.
<16>
The pants-type wearing article according to <15>, wherein a lateral length (width) W3 of the cut region is preferably 11 mm or more, preferably 90 mm or less, and more preferably 30 mm or less.
<17>
One of the pair of breakage guide incisions is provided over the entire length between the waist opening and the leg opening, and the other is either the waist opening or the leg opening. The underpants-type wearing article according to <15> or <16>, wherein the article does not reach either of them.
<18>
The underpants type wearing article as described in any one of said <15>-<17> in which the said side seal part exists in the said cutting area.

<19>
The underpants type according to any one of <15> to <18>, wherein a member that functions as a knob when pulling the region with a finger is provided at or near the longitudinal end of the cut region. Wearing articles.
<20>
A portion corresponding to the longitudinal end portion on the waist opening side of the cutout region protrudes outward in the vertical direction from the peripheral portion to form a protruding portion, and the protruding portion functions as the knob portion. The projecting portion is the pant-type wearing article according to <19>, wherein the protrusion is configured from a part of the exterior body (outer layer sheet material and / or inner layer sheet material).
<21>
A portion corresponding to the longitudinal end portion on the waist opening side of the cutout region protrudes outward in the vertical direction from the peripheral portion to form a protruding portion, and the protruding portion functions as the knob portion. The pants-type wearing article according to <19>, wherein the protruding portion is formed of a member different from the exterior body (outer layer sheet material and / or inner layer sheet material).
<22>
The <19> description, wherein a waste tape is attached to an outer surface (a non-skin-facing surface of the outer layer sheet material) of a longitudinal end portion on the waist opening side of the cut region, and the waste tape functions as the knob. Pants-type wearing article.

<23>
The breakage incision portion is provided on both lateral sides of the absorbent main body (between the absorbent main body and the side seal portion) in each of the ventral exterior body and the back exterior body. The pants-type wearing article according to any one of <1> to <22>, wherein a total of four are provided.
<24>
<1> to <23, in which the hole includes a curved line in a plan view, and more specifically, has a shape having four sides in a plan view and all four sides bulge inward. > The pants | underpants type wearing article as described in any one of>.

1,1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H Pants-type disposable diapers (pants-type wearing articles)
2 Absorbent body 21 Top sheet 22 Back sheet 23 Absorber 3 Exterior body 31 Abdomen side exterior body 32 Back side exterior body 33 Outer body forming elastic member 35 Outer sheet material 36 Inner sheet material 4, 4A, 4B, 4C, 4D , 4D Breaking induction cut-in part 5, 5 ', 5A, 5B, 5C Hole 5α Acute angle of hole 6, 7 Adhesive application part 8 Cut-out area 81 Projection (pick part)
82 Waste tape (picking part)
A Abdominal side B Inseam C Back side D Waist E Trunk circumference X Longitudinal direction Y Lateral direction

Claims (9)

The ventral portion disposed on the abdomen side of the wearer, the dorsal side portion disposed on the dorsal side, and a crotch portion positioned therebetween, and the dorsal side from the abdominal side portion through the crotch portion An absorbent main body, and an exterior body that is disposed on the non-skin-facing surface side of the absorbent main body and fixes the absorbent main body. The both side edges along the longitudinal direction of each of the abdominal exterior body constituting the abdominal side part and the back side exterior body constituting the back side part in the exterior body are joined, and a pair of side seal parts, A pants-type wearing article in which a waist opening and a pair of leg openings are formed,
In the outer body, a portion disposed around the waist of the wearer is provided with a breakage incision from the waist opening to the leg opening, and the breakage incision is formed in the thickness direction. And a plurality of holes penetrating through are formed so as to form one row in the vertical direction,
Each of the plurality of holes has a shape having two or more acute angles in a plan view, and any two adjacent holes in the vertical direction are arranged so that one acute angle and the other acute angle are close to each other. As a result, a plurality of adjacent portions of acute angles are formed in the breaking induction cut portion, and a virtual line connecting the adjacent portions of the plurality of acute angles extends in the vertical direction ,
A cutout region sandwiched between a pair of the breakage guide cutouts arranged in parallel in the lateral direction is provided in a portion of the exterior body that is arranged around the waist of the wearer, and a longitudinal end portion of the cutout region is formed by a finger. By picking and pulling, the cut area can be separated from the exterior body,
One of the pair of breakage guide incisions is provided over the entire length between the waist opening and the leg opening, and the other is either the waist opening or the leg opening. Pants-type wearing articles that have not reached either .   The pants-type wearing article according to claim 1, wherein one acute angle and the other acute angle are opposed to each other in a proximity portion between the acute angles.   The underpants-type wearing article according to claim 1 or 2, wherein the exterior body does not include an elastic member that crosses the adjacent portion between the hole and the acute angle.   The pants-type wearing article according to any one of claims 1 to 3, wherein the plurality of holes are arranged in a staggered pattern in the vertical direction.   The ventral-side exterior body has an extending portion that extends from a peripheral edge of the longitudinal end portion of the absorbent main body, and the breakage induction cut portion extends in the longitudinal direction of the absorbent main body at the extending portion. 5. The pair according to claim 1, wherein a pair is provided in a lateral direction so as to go from the portion sandwiched between the extension lines on both side edges along the extension line to the pair of leg openings. Pants-type wearing article.   Adhesive application portions formed by linearly applying an adhesive to the exterior body are provided so as to extend in the vertical direction on both lateral sides of the row of holes forming the breakage induction cut portions. The underpants type wearing article according to any one of claims 1 to 5.   The pants-type wearing article according to any one of claims 1 to 5, wherein an adhesive is applied around the plurality of holes in the exterior body. The pants-type wearing article according to any one of claims 1 to 7 , wherein the side seal portion is present in the cut region. The pants-type wearing article according to any one of claims 1 to 8 , wherein a member that functions as a knob when pulling the region with a finger is provided at or near the longitudinal end of the cut region.

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