JP6440471B2 - Deployable wearing articles - Google Patents

Description

  The present invention relates to a deployment-type wearing article including a fastening tape such as a deployment-type disposable diaper.

  The unfoldable disposable diaper usually has an abdominal side portion arranged on the wearer's ventral side, a dorsal side portion arranged on the dorsal side, and a crotch portion positioned therebetween, and when wearing this The side flap of the back side is extended to the wearer's ventral side, and the fastening tape provided on the side flap is fastened to the outer surface of the ventral side. Accordingly, the diaper can be appropriately tightened around the waist and fixed so as not to slip off. As this fastening tape, the fastening tape which enables the mechanical joining which can be fixed and peeled freely is widely used. The fastening tape generally has a planar mechanical fastener, for example, a structure in which this is attached to a diaper flap together with a base sheet. As this mechanical fastener, a so-called male material, which is a planar fastener having a number of engagement hooks having a shape capable of engaging with a fiber or the like, for example, a hook shape or a mushroom shape, is used. On the other hand, the part that receives this planar mechanical fastener on the outer surface of the ventral side of the diaper may be left as it is when the outer surface is formed of a non-woven fabric. In order to realize the hooking, for example, a target tape having a loop-like or fluffy surface fiber structure, so-called female material is used.

  The fastening force of the fastening tape to the target tape is not so strong, and it can be easily removed by the weak force of a wearer such as an infant. As a result, the fastening tape is removed, and the diaper is loosened or detached, causing excrement to leak. In view of such a problem, Patent Document 1 discloses a fastening tape including a tape body and a convex member as an engagement hook of a mechanical fastener fixed to one surface of the tape. It is described that a plurality of diapers are arranged at predetermined intervals in the lateral direction). In the fastening tape described in Patent Document 1, no convex members are arranged at both ends in the longitudinal direction of the tape body, that is, the corners of the fastening tape do not have a fastening function.

  In Patent Document 2, if the fastening tape has a square shape in plan view, it may be painful if a finger touches the corner of the fastening tape when it is picked. In order to solve this problem, it is described that a grip portion formed at one end in the longitudinal direction of the tape base material and a disposable diaper main body formed at the other end are described. In a fastening tape having a fixing portion to be attached, it is described that an engagement hook is provided inwardly of the periphery of the tape base material in the knob portion. That is, in the fastening tape described in Patent Document 2, the arrangement portion of the engagement hook is surrounded by a portion where the engagement hook is not disposed.

  Patent Document 3 describes a fastening tape in which the height of the engaging hook is partially varied as a fastening tape that improves the ease of peeling while reducing the uncomfortable feeling caused by the pin-shaped engaging hook. . The fastening tape described in Patent Document 3 includes a base sheet extending from a side flap of a diaper and a hook sheet provided with a plurality of engagement hooks. The hook sheet is one surface of the base sheet. The entire surface is covered, and there is no portion where the engagement hook is not provided on one surface of the base sheet.

JP-A-10-28703 JP 2011-183059 A JP2013-212214A

  Although the disposable diaper described in Patent Document 1 is difficult to peel off the fastening tape due to misoperation or mischief of the wearer during wearing due to the device applied to the fastening tape, there is still room for improvement. . The disposable diaper described in Patent Document 2 is not provided with an engagement hook on the entire peripheral edge of the fastening tape, and the peripheral edge is not fastened while the diaper is worn. The tape is easily removed. The disposable diaper described in Patent Document 3 is provided with an engagement hook on the entire surface of the fastening tape, and a portion that can function as a knob when peeling from a state where the hook is fixed to the abdomen side of the diaper. Because it is not provided, it is difficult to peel off.

  Therefore, the present invention relates to a deployment-type wearing article that can easily peel the fastening tape from the fastening target and hardly peels the fastening tape from the fastening target due to misoperation or mischief of the wearer.

  The present invention has a longitudinal direction extending from the wearer's ventral side to the back side through the crotch part and a lateral direction perpendicular thereto, and is disposed on the abdominal side and the back side that are disposed on the wearer's ventral side. A deployment side wearing article having a fastening tape for fastening at both side edges along the longitudinal direction of the back side part. A fixing region fixed to the back side portion, and a free region extending outward in the lateral direction from the fixing region, and one surface of the free region in the lateral direction is a fastening member The fastening region has a rectangular shape in plan view and has a pair of lateral sides extending in the lateral direction, and a longitudinal side connected to each of the pair of lateral sides and extending in the longitudinal direction. A fastening portion in which the fastening member is disposed in the fastening region, and the fastening member There is a non-fastening portion that is not arranged, and a corner portion of the fastening region defined by the vertical side and the horizontal side is the fastening portion, and the vertical side and the horizontal side The non-fixed portion that can function as a knob at the edge of the fixed region including the non-fixed portion and the fixed portion positioned on both sides in the length direction of the edge. The present invention provides an unfoldable wearing article in which a knob forming portion is present.

  ADVANTAGE OF THE INVENTION According to this invention, the unfolding type wearing article which can peel a fastening tape from the fastening object easily, and does not arise easily from the fastening object of a fastening tape resulting from a wearer's misoperation or mischief is provided. Is done. When the deployable wearing article of the present invention is used as, for example, a disposable diaper, it is not necessary to frequently check whether or not the fastening tape has been removed when wearing the mother or other wearer. Is obtained.

FIG. 1 is a plan view schematically showing a skin-opposing surface, that is, a surface sheet side, of a deployable disposable diaper according to an embodiment of the deployable wearing article of the present invention, with the elastic member at each part extended. It is the top view in the unfolded state extended and made flat. FIG. 2 is a schematic perspective view of the disposable diaper shown in FIG. 1 and is a perspective view showing a state in which a fastening tape on the back side is fixed to a target tape on the abdominal side. FIG. 3 is a schematic plan view of the fastening surface side of the fastening tape in the disposable diaper shown in FIG. 1. 4 (a) to 4 (d) are schematic plan views on the to-be-bonded surface side of another embodiment of the fastening tape according to the present invention. Fig.5 (a)-FIG.5 (d) are typical top views by the to-be-attached surface side of further another embodiment of the fastening tape which concerns on this invention, respectively. FIG. 6A to FIG. 6D are schematic plan views of the fastening surface side of still another embodiment of the fastening tape according to the present invention. Fig.7 (a)-FIG.7 (f) are typical top views on the to-be-attached surface side of further another embodiment of the fastening tape which concerns on this invention, respectively.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a deployable wearing article of the present invention will be described with reference to the drawings based on an example of a deployable disposable diaper that is a preferred embodiment thereof. 1 and 2 show the overall configuration of the deployable disposable diaper 1 of the present embodiment. The diaper 1 has a longitudinal direction X extending from the wearer's ventral side to the back side through the crotch part and a lateral direction Y orthogonal thereto, and the abdominal side part 1F and the back arranged on the wearer's ventral side. It has a back side portion 1R arranged on the side and a crotch portion 1M located between them.

  The diaper 1 has both side edges along the vertical direction X curved in an inward arc shape in the central portion of the vertical direction X including the crotch portion 1M, and in the plan view as shown in FIG. The section is in the shape of an hourglass with an inner part. The crotch part 1M includes an excretion part facing part (not shown) that is disposed to face the excretion part of the wearer when worn. The excretory part opposing part is normally in a position biased slightly closer to the back side part 1R than the central part in the longitudinal direction X of the diaper 1.

  The diaper 1 is a liquid-retaining absorbent body 4, a liquid-permeable surface sheet 2 that is disposed on the skin-facing surface side of the absorbent body 4 and that can contact the skin of the wearer when worn, and the absorbent body 4. And a liquid-impermeable or water-repellent back sheet 3 disposed on the non-skin facing surface side. The diaper 1 has a vertically long shape in the longitudinal direction X in plan view as shown in FIG. 1, the longitudinal direction thereof coincides with the longitudinal direction X, and the width direction thereof coincides with the lateral direction Y.

  In the present specification, the “skin-facing surface” is a surface of the wearing article or its constituent member (for example, the absorbent body 4) that is directed toward the wearer's skin when the wearing article is worn, that is, relative to the wearer's skin. The side close to the skin, and the “non-skin facing surface” is the surface of the worn article or its component that is directed to the side opposite to the skin side when the worn article is worn, that is, the side that is relatively far from the wearer's skin. It is. In addition, "at the time of wearing" here means the state in which the normal proper wearing position is maintained, and does not include the case where the worn article is in a state deviated from the proper wearing position.

  Each of the top sheet 2 and the back sheet 3 has a size larger than that of the absorber 4, extends outward from the peripheral edge of the absorber 4, and is joined to each other at the extending portion. Each of the top sheet 2 and the back sheet 3 forms the outer shape of the diaper 1 in the unfolded and stretched state as shown in FIG. As the top sheet 2 and the back sheet 3, 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 2, and a resin film, a laminate of a resin film and a nonwoven fabric, or the like can be used as the back sheet 3. The back sheet 3 includes, for example, a form in which a liquid-impermeable film sheet alone and a form in which nonwoven fabrics as exterior sheets are laminated and disposed on the non-skin facing surface side of the film sheet. In the plan view as shown in FIG. 1, the absorbent body 4 has an hourglass shape in which a central portion in the longitudinal direction X located at the crotch portion 1M is inwardly bound, and has a vertically long shape that is long in the longitudinal direction X. . As the absorbent body 4, for example, an absorbent core containing particles of water-absorbing polymer and at least one fiber material such as pulp fiber can be used, and the absorbent core has a core made of paper, nonwoven fabric or the like on the surface. It may be covered with a wrap sheet.

  A waist gather forming elastic member 5 for fitting the waist portion 11 to the wearer's body is provided on the waist portion 11 which is an end portion in the longitudinal direction X of each of the ventral side portion 1F and the back side portion 1R. It is fixed between the top sheet 2 and the back sheet 3 in a stretched state in Y, whereby a waist gather is formed in the waist portion 11 by contraction of the elastic member 5 when the diaper 1 is worn. In addition, leg gathers for fitting the leg portions 12 to the wearer's body are provided on the left and right leg portions 12 including side edges along the longitudinal direction X of the crotch 1M. The forming elastic member 6 is fixed between the top sheet 2 and the back sheet 3 in a stretched state in the longitudinal direction X, whereby the leg member 12 is contracted by the elastic member 6 when the diaper 1 is worn. Leg gathers are thus formed. The top sheet 2, the back sheet 3, the absorber 4, and the elastic members 5 and 6 are joined to each other by a known joining means such as a hot-melt adhesive.

  As shown in FIG.1 and FIG.2, a pair of fastening tapes 7 and 7 are provided on both side edges along the longitudinal direction X of the back side 1R. Moreover, the target tape 8 to which the fastening area | region 72 mentioned later in the fastening tape 7 is fastened is provided in the outer surface, ie, non-skin opposing surface, of the belly side part 1F of the diaper 1. FIG. A loop that can be engaged with an engagement hook as a fastening member of the fastening region 72 over the entire surface of the target tape 8, that is, the entire surface of a fastening tape 7 to which a fastening region 72 described later is fastened. Thus, the target tape 8 can be detachably fastened to the fastening region 72. The target tape 8 has a rectangular shape in plan view as shown in FIG. 1, and the non-skin facing surface of the back sheet 3 that forms the non-skin facing surface of the abdominal side portion 1F with its longitudinal direction aligned with the lateral direction Y. Further, it is fixed by a known joining means such as an adhesive or heat seal. As the target tape 8, a known so-called female material having a looped or fluffy surface fiber structure can be used, and various nonwoven fabrics such as a spunbond nonwoven fabric can be used.

  In FIG. 3, only one of the pair of fastening tapes 7 and 7 is shown enlarged, but unless otherwise specified, the other fastening tape 7 not shown in FIG. 3 is also shown in FIG. It is configured in the same way. As shown in FIG. 3, the fastening tape 7 includes a fixing region 70 fixed to the back side portion 1 </ b> R, and other members that are adjacent to the fixing region 70 and extend outward in the lateral direction Y from the fixing region 70. And a non-fixed free region 71. The fixing region 70 is fixed to a side flap portion that is an extended portion from a side edge along the longitudinal direction X of the absorbent body 4 of each of the top sheet 2 and the back sheet 3, and more specifically, the side flap. It is interposed between both sheets 2 and 3 constituting the part. The fixing region 70 is fixed to the side flap portion by a known joining means such as an adhesive or heat seal.

  One surface on the outer side in the lateral direction Y of the free region 71 of the fastening tape 7, more specifically, the to-be-bonded surface overlapped with the target tape 8 when the diaper 1 is worn is a fastening region having a fastening member. 72. As shown in FIG. 3, the fastening region 72 has a quadrangular shape in plan view and extends in the horizontal direction Y, and is connected to each of the pair of horizontal sides 7 y and 7 y in the vertical direction X. And a vertical side 7x. The vertical side 7x is a front end of the fastening tape 7 (free region 71) on the outer side in the horizontal direction Y. In the present invention, the quadrangular shape is a concept including not only a square in a strict sense such as a square or a rectangle, but also a shape with rounded corners, a trapezoid, a rhombus, and the like.

  In the present embodiment, each of the pair of fastening tapes 7, 7 has two in the lateral direction Y at the front end side (the outer side in the lateral direction Y) of the free region 71 located on the opposite side of the fixed region 70. Each of the two separated portions is a fastening region 72. That is, each of the pair of fastening tapes 7 and 7 has a plurality (two) of fastening areas 72 that are independent from each other, and the plurality (two) of fastening areas 72 and 72 are arranged in the vertical direction X. Are provided intermittently. The two fastening regions 72, 72 have the same shape and dimensions, and the fastening tape 7 is formed symmetrically across an imaginary straight line extending in the lateral direction Y through the center between the two fastening regions 72, 72. ing.

  In the present embodiment, the fastening region 72 has a trapezoidal shape in plan view, more specifically, an isosceles trapezoidal shape with rounded corners, and among the two bases having different lengths in the isosceles trapezoid, A base having a relatively short length is a vertical side 7x. The pair of horizontal sides 7y, 7y of the fastening region 72 extends in a direction intersecting both the vertical direction X and the horizontal direction Y. The fastening region 72 gradually decreases in length or width in the lateral direction as it goes outward in the lateral direction Y.

  As shown in FIG. 3, the fastening region 72 includes a fastening portion 73 in which a fastening member is disposed and a non-fastening portion 74 in which no fastening member is disposed. In the present embodiment, a male member of a planar mechanical fastener having a large number of engaging hooks is employed as the fastening member disposed in the fastening portion 73. The fastening member typically includes a sheet-like support and a plurality of engagement hooks provided on the surface of the support. The shape of the engagement hook is not particularly limited, and for example, various types of engagement hooks such as a pin type, a saddle type, a hook type, and a mushroom type can be used.

The length of each of the two fastening regions 72, 72 of the fastening tape 7 in the lateral direction Y, that is, the longitudinal side 7 x (the tip on the outer side in the lateral direction Y of the fastening tape 7) and the longitudinal side of the fastening part 73. The separation distance from the portion furthest away from 7x is preferably 10 mm or more, more preferably 20 mm or more, and preferably 250 mm or less, more preferably 200 mm or less, more specifically, preferably 10 mm or more and 250 mm or less, More preferably, it is 20 mm or more and 200 mm or less.
Further, the length or width in the longitudinal direction X of the fastening region 72 is preferably 20 mm or more, more preferably 25 mm or more, and preferably 200 mm or less, more preferably 70 mm or less, more specifically preferably 20 mm. It is 200 mm or less and more preferably 25 mm or more and 70 mm or less. When the width | variety of the fixation area | region 72 is not constant like this embodiment, it is preferable that both the maximum value and the minimum value of the width exist in the said range.

  As one of the main features of this embodiment, as shown in FIG. 3, the corner 72 c of the fastening region 72 defined by the vertical side 7 x and the horizontal side 7 y is the fastening part 73, and At the edge of the fastening region 72, that is, the vertical side 7x and the horizontal side 7y and the vicinity thereof, a non-sticking portion 74 that can function as a knob and the non-sticking portion 74 in the length direction of the edge. The point which the knob | pick part formation part 75 which consists of the fastening part 73 located in both sides exists is mentioned. Here, the “edge along the vertical side 7x” which is a part of the edge of the fastening region 72 is a region within 5 mm from the vertical side 7x, and “the other part of the edge of the fastening region 72” The “edge along the horizontal side 7y” is an area within 5 mm from the horizontal side 7y. The knob forming portion 75 includes a pair of fastening portions 73 and 73 that are separated in the length direction of the side of the fastening region 72 where the gripping portion forming portion 75 exists, in this embodiment, the vertical side 7x, and the pair of fastening portions. It consists of the non-fixed part 74 interposed between the parts 73 and 73.

  In this manner, the fastening portion 73 exists at the corner 72 c of the fastening region 72, and the non-fastening portion 74 as a knob provided at the edge of the fastening region 72 is the fastening portions 73 and 73. By being pinched, in the state where the fastening region 72 is fastened to the target tape 8, it is difficult for the fastening region 72 (free region 71) to float or turn over from the target tape 8, and the fastening region Since it becomes difficult to insert fingers between the edge of 72 and the target tape 8, peeling of the fastening region 72 due to a wearer's erroneous operation or mischief is effectively prevented. In addition, in a state where the fastening region 72 is fastened to the target tape 8, only one finger can be inserted into a portion corresponding to the non-fastening portion 74 of the knob portion forming portion 75 at the edge of the fastening region 72. Therefore, when the fastening region 72 is peeled off from the target tape 8, it is only necessary to insert a finger into the gap to grip and peel the fastening region 72 (free region 71). 7 can be easily performed.

  In the present embodiment, as shown in FIG. 3, the knob portion forming portion 75 exists only on the vertical side 7x and does not exist on the horizontal side 7y. As in the embodiment described later, the knob portion forming portion 75 may be present on the lateral side 7y. However, when the wearer performs an erroneous operation or mischief on the fastening region 72 of the fastening tape 7, the finger is placed vertically. Since it often moves in the direction X, the non-fixed portion 74 does not exist on the lateral side 7y of the fixing region 72 extending in the direction intersecting with the movement of the finger or the fixing region 72 It is preferable that the ratio of the area of the non-fixed portion 74 occupying the entire area is small. That is, it is more effective that the knob forming portion 75 including the non-fixed portion 74 is present on the vertical side 7x as in the present embodiment.

  In the present embodiment, as shown in FIG. 3, the portions other than the edge portions in the fastening region 72 are all fastening portions 73. In addition, as for the edge portion of the fastening region 72, the non-fastening portion 74 exists only in the edge portion along the vertical side 7x, and the non-fastening portion 74 existing in the edge portion along the vertical side 7x. The number is one. Since the fastening region 72 is configured as described above, the erroneous operation of the wearer can be performed in a state where the fastening region 72 is fastened to the target tape 8 while achieving both high fastening strength and easy peeling. Detachment of the fastening region 72 due to mischief is more reliably prevented.

  The length in the vertical direction X of the non-fixed portion 74 in the knob portion forming portion 75 existing on the vertical side 7x, that is, the width of the non-fixed portion 74 as the knob is fixed due to an erroneous operation or mischief by the wearer. From the viewpoint of the balance between prevention of peeling of the region 72 and ease of peeling operation, it is preferably 5 mm or more, more preferably 10 mm or more, and preferably 30 mm or less, more preferably 25 mm or less, more specifically preferably They are 5 mm or more and 30 mm or less, More preferably, they are 10 mm or more and 25 mm or less.

  Further, from the viewpoint of achieving both high fastening strength and ease of peeling at a high level, in one side of the fastening region 72 where the knob portion forming portion 75 exists, the total length in the length direction of the one side of the fastening portion 73 The value is preferably equal to or greater than the total value in the length direction of the one side of the non-fixed portion 74. In the present embodiment, since there is one knob portion forming portion 75 on the vertical side 7x, the vertical sides of the two fastening portions 73, 73 constituting the one knob portion forming portion 75 on the vertical side 7x. The total value of the lengths in the length direction of 7x is preferably equal to or greater than the total value in the length direction of the vertical sides 7x of one non-fixed portion 74 sandwiched between the two fixed portions 73, 73. . The ratio between the total length in the length direction of one side of the fastening region 72 where the knob forming portion 75 is present and the non-fastening portion 74 is preferably the former / the latter. 1 or more, more preferably 1.5 or more, and preferably 3 or less, more preferably 2 or less, more specifically, preferably 1 or more and 3 or less, more preferably 1.5 or more and 2 or less. In other embodiments described later (see FIGS. 4 to 7), there is a portion in which the knob portion forming portion 75 is present on the lateral side 7y, and the lateral side of the fastening portion 73 on the lateral side 7y. The ratio of the total length in the length direction of 7y to that of the non-fixed portion 74 is also preferably in such a range.

  4 to 7 show other embodiments of the fastening tape according to the present invention. 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 is omitted. The description of the above embodiment is appropriately applied to components that are not particularly described.

The fastening tapes 7 </ b> A to 7 </ b> D shown in FIG. 4 each have a non-fixed portion 74 (a knob forming portion 75) at the edge along the vertical side 7 x of the fixed region 72, and the vertical side in the fixed region 72. It exists also in other parts other than the edge part along 7x.
In the fastening tape 7A shown in FIG. 4 (a) and the fastening tape 7B shown in FIG. 4 (b), there are a plurality of non-fixed portions 74 each having a straight line in plan view that vertically cuts the fixing region 72 in the vertical direction X There are three fastening tapes 7A and two fastening tapes 7B), and there are a plurality of knob forming portions 75 each including a plurality of non-fixed portions 74 on each of the pair of lateral sides 7y and 7y. ing. The fastening tapes 7A and 7B are formed symmetrically across a horizontal center line (not shown) that bisects the tapes 7A and 7B in the longitudinal direction X, respectively.
In the fastening tape 7C shown in FIG. 4C, the non-fixed portion 74 exists in the fixed region 72 only at the edge along the vertical side 7x and the edge along the horizontal side 7y, and is located inside the edge. Does not exist.
In the fastening tape 7 </ b> D shown in FIG. 4D, a plurality (two) of non-fixed portions 74 that are linear in plan view extend in the lateral direction Y inward of the edge in the fixed region 72. Although it exists, the non-fixed portion 74 does not exist on the lateral side 7y.

  The fastening tapes 7E to 7H shown in FIG. 5 are common in that there are a plurality of knob forming portions 75 (non-fixed portions 74) on the vertical side 7x. Since there are a plurality of knob portion forming portions 75 on the vertical side 7x, there are a plurality of non-sticking portions 74 that function as knobs on the vertical side 7x. The ease of picking is further improved. Further, since the plurality of non-fixed portions 74 existing on the vertical side 7x are alternately arranged along the plurality of fixed portions 73 and the vertical side 7, the fixing region 72 is fixed to the target tape 8. In this state, it is difficult to insert a finger between the vertical side 7x and the target tape 8, and peeling of the fastening region 72 due to a wearer's erroneous operation or mischief is effectively prevented. The fastening tapes 7 </ b> E to 7 </ b> H are common in that they have only one free area 71 (fastening area 72) having a vertically long rectangular shape that is long in the vertical direction X in plan view.

  In the fastening tape 7E shown in FIG. 5A, the planar view shape of each of the plurality of non-fixed portions 74 existing on the vertical side 7x is a square shape, whereas the fastening tape 7F shown in FIG. The planar view shape of each of the plurality of non-fixed portions 74 present on the vertical side 7x is a semi-elliptical shape that is convex inward in the lateral direction Y, and has a shape similar to that of a human fingertip. There is no. The fastening tape 7F is more advantageous than the fastening tape 7E in terms of ease of picking the fastening region 72.

The fastening tape 7G shown in FIG. 5C is the same as the fastening tape 7E except that the area of the non-fixed portion 74 is larger than that of the fastening tape 7E shown in FIG.
The fastening tape 7H shown in FIG. 5 (d) has one non-fixed portion 74 in a straight line in plan view that cuts the fixing region 72 in the vertical direction X, and each of the pair of horizontal sides 7y, 7y It is the same as the fastening tape 7E except that there is one knob portion forming portion 75 configured to include the non-fixed portion 74.
The fastening tapes 7G and 7H each have a smaller area of the fastening portion 73 than the fastening tape 7E, and hence less usage amount of the engaging hook, so that the manufacturing cost and the flexibility of the fastening region 72 are improved. This is more advantageous than the fastening tape 7E.

  The fastening tapes 7 </ b> A to 7 </ b> C and 7 </ b> H described above have the non-fixed portion 74 (pick portion forming portion 75) on the vertical side 7 x and the non-fixed portion 74 (pick portion forming portion 75) also on the horizontal side 7 y. ) Is common. In the fastening tape having such a configuration, the horizontal length 7Ly is set on the horizontal side 7y as compared with the vertical length 74Lx of the non-fixed portion 74 constituting the knob portion forming portion 75 existing on the vertical side 7x. It is preferable that the non-fixed portion 74 "is not present. When such a non-fixed portion 74 having a relatively wide width that can function as a knob is present on the lateral side 7y of the fastening tape, a finger is unexpectedly placed on the lateral side 7y in the fastening state of the fastening tape. There is a possibility that the fastening tape may come in and peel from the target tape. That is, “the horizontal side 7y has a horizontal length 74Ly that is longer than the vertical length 74Lx of the non-fixed portion 74 that constitutes the knob portion forming unit 75 existing on the vertical side 7x. “There is no attachment part 74” means that “1) the entire edge along the lateral side 7y is the attachment part 73 (see FIG. 3), or 2) the non-attachment part 74 exists on the lateral side 7y. In other words, the horizontal length 74Ly is shorter than the vertical length 74Lx of the non-fixed portion 74 constituting the knob forming portion 75 existing on the vertical side 7x.

  As described above, since the size relationship of “vertical length 74Lx of the non-fixed portion 74 of the vertical side 7x> horizontal length 74Ly of the non-fixed portion 74 of the horizontal side 7y” is established, The fastening portion 73 occupying the entire area of the fastening region 72 as long as there is no hindrance to the function and effect, that is, the effect of improving the peelability of the fastening tape and the prevention effect of the peeling caused by the wearer's misoperation or mischief. It is possible to reduce the area ratio, thereby reducing the manufacturing cost and improving the flexibility of the fastening region 72. The ratio of the vertical length 74Lx of the non-fixed portion 74 of the vertical side 7x to the horizontal length 74Ly of the non-fixed portion 74 of the horizontal side 7y is preferably 1 or more, more preferably 1 as the former / the latter. 0.5 or more, and preferably 3 or less, more preferably 2 or less, more specifically, preferably 1 or more and 3 or less, more preferably 1.5 or more and 2 or less.

  The fastening tapes 7 </ b> I to 7 </ b> L shown in FIG. 6 have a relatively short length extending outward from the side edge of the back side portion IR in the lateral direction Y and have only one fastening region 72. Common. In addition, the fastening tapes 7I to 7L shown in FIG. 6 include the knob portion forming portion 75 on the vertical side 7x, and the total length in the length direction of the vertical side 7x of the fastening portion 73 in the vertical side 7x. This is also common in that the value is less than the total value in the length direction of the vertical sides 7x of the non-fixed portion 74. The magnitude relationship between the lengths of the fastening portion 73 and the non-fastening portion 74 on one side of the fastening region 72 where the knob portion forming portion 75 is present is the same as the magnitude relationship at the vertical side 7x of the fastening tape 7 shown in FIG. Is the opposite.

  The fastening tapes 7I to 7L shown in FIG. 6 are different from each other in the shape of the non-fixed portion 74 constituting the knob portion forming portion 75 existing on the vertical side 7x, and the fastening tape 7I shown in FIG. More specifically, the rectangular shape is more preferable than the rectangular shape. In the fastening tape 7J shown in FIG. 6B, a semicircular or semi-elliptical shape that protrudes inward in the lateral direction Y. The fastening tape shown in FIG. 6C. The fastening tape 7L shown in FIG. 7K and FIG. 6D has a convex shape that is convex inward in the lateral direction Y. The fastening tape 7 </ b> L has a larger area ratio of the non-fixed portion 74 in the total area of the fixed region 72 than the fastening tape 7 </ b> K.

  The fastening tapes 7M to 7R shown in FIG. 7 are common in that they have only one free area 71 (fixed area 72) having a horizontally long rectangular shape in the horizontal direction Y in plan view. Among the fastening tapes 7M to 7R shown in FIG. 7, the fastening tapes 7M, 7N, 7Q and 7R are different from each other in the planar view shape of the non-fixed portion 74 constituting the knob portion forming portion 75 existing on the vertical side 7x. In the fastening tape 7M shown in FIG. 7A, a rectangular shape is more specific than a rectangular shape, and in the fastening tape 7N shown in FIG. The oval shape, the fastening tape 7Q shown in FIG. 7 (e) and the fastening tape 7R shown in FIG. 7 (f) have a convex shape that is convex inward in the lateral direction Y. Fastening tape 7R has a larger proportion of the area of non-fixed portion 74 in the total area of fixed region 72 than fastener tape 7Q. Further, the fastening tape 7O shown in FIG. 7 (c) and the fastening tape 7P shown in FIG. 7 (d) have a pair of gripping portion forming portions 75 (non-fixing portions 74) instead of being present on the vertical sides 7x. More specifically, it exists only on one of the horizontal sides 7y and 7y. More specifically, the one of the pair of horizontal sides 7y and 7y that is relatively far from the waist portion 11 of the back side 1R (the crotch part). The fastening tape 7M is the same as the fastening tape 7M shown in FIG. 7A and the fastening tape 7N shown in FIG.

  Although the present invention has been described above, the present invention is not limited to the above-described embodiments and can be modified as appropriate. For example, a liquid permeable sheet made of various non-woven fabrics may be interposed between the top sheet 2 and the absorbent body 4 from the viewpoint of improving absorbability, leakage prevention, and the like. From the same viewpoint, a groove formed by integrally compacting the topsheet 2 and the absorbent body 4 may be formed on the skin facing surface of the diaper 1. Moreover, you may provide a pair of solid gathers which stand up toward a wearer's skin side at the time of wear in the right-and-left both sides along the vertical direction of a skin opposing surface. The present invention is applicable to other deployment-type wearing articles other than the deployment-type disposable diaper, for example, a wearing article that can be used as a deployment type by breaking the side portion even if it is a pants-type before wearing. 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>
A ventral side portion disposed on the wearer's ventral side and a dorsal side disposed on the dorsal side having a longitudinal direction extending from the ventral side of the wearer through the crotch portion to the back side and a lateral direction perpendicular thereto In a deployable wearing article having a fastening tape for fastening on both side edges along the longitudinal direction of the back side part, and a crotch part located between the parts and the crotch part,
The fastening tape has a fixed region fixed to the back side portion and a free region extending outward in the lateral direction from the fixed region, and one surface of the free region in the lateral direction is It is a fastening area with fastening members,
The fastening region has a rectangular shape in plan view and has a pair of lateral sides extending in the lateral direction and a longitudinal side connected to each of the pair of lateral sides and extending in the longitudinal direction. A fastening portion in which the fastening member is disposed and a non-fastening portion in which the fastening member is not disposed,
A corner portion of the fastening region defined by the vertical side and the horizontal side is the fastening portion,
Located on both sides of the edge portion in the length direction with the non-fastening portion functioning as a knob and the non-fastening portion sandwiched between edges of the fastening region including the vertical side and the horizontal side An unfoldable wearing article having a knob portion forming portion formed of the fastening portion.

<2>
The knob portion forming portion is present on the vertical side, and the horizontal side is compared with the length in the vertical direction of the non-fixed portion constituting the knob portion forming portion existing on the vertical side. The unfoldable wearing article according to <1>, wherein the lateral length is long and the non-fixed portion does not exist.
<3>
The knob portion forming portion exists on the vertical side, and 1) the entire edge portion along the horizontal side is the fixing portion, or 2) the non-fixing portion existing on the horizontal side is The unfolded mold according to <1>, wherein the length in the horizontal direction is shorter than the length in the vertical direction of the non-fixed portion constituting the knob portion forming portion existing on the vertical side. Wearing articles.
<4>
The ratio of the length in the vertical direction of the non-sticking portion of the vertical side to the length in the horizontal direction of the non-sticking portion of the horizontal side is preferably 1 or more, more preferably as the former / the latter. The expandable wearing article according to any one of <1> to <3>, which is 1.5 or more and preferably 3 or less, more preferably 2 or less.

<5>
The deployable wearing article according to any one of <1> to <4>, wherein a plurality of the knob forming portions are present on the vertical side.
<6>
In one side of the fastening region where the knob portion forming portion exists, the total value of the lengths of the one side of the fastening portion is the total value of the one side of the non-fastening portion. The unfoldable wearing article according to any one of the above items <1> to <5>.
<7>
The deployment-type wearing article according to any one of <1> to <6>, wherein all portions other than the edge portion in the fastening region are the fastening portions.

<8>
Each of the pair of fastening tapes has a plurality (two) of fastening areas that are independent from each other, and the plurality (two) of fastening areas are provided intermittently in the longitudinal direction. The expandable wearing article according to any one of <1> to <7>.
<9>
The unfolding-type wearing article according to any one of <1> to <8>, wherein the fastening region has an isosceles trapezoidal shape with rounded corners in plan view.
<10>
The lateral length of the fastening region of the fastening tape, that is, the longitudinal side, that is, the distal end of the lateral side of the fastening tape, and the farthest side from the longitudinal side of the fastening part. The development according to any one of <1> to <9>, wherein the separation distance from the portion is preferably 10 mm or more, more preferably 20 mm or more, and preferably 250 mm or less, more preferably 200 mm or less. Mold wearing article.
<11>
The length or width in the longitudinal direction of the fastening region is preferably 20 mm or more, more preferably 25 mm or more, and preferably 200 mm or less, more preferably 70 mm or less. The expandable wearing article according to any one of the above.

<12>
The expandable wearing article according to any one of <1> to <11>, wherein the knob portion forming portion exists only on the vertical side.
<13>
The longitudinal length of the non-fixed part in the knob forming part existing on the vertical side, that is, the width of the non-fixed part as the knob is preferably 5 mm or more, more preferably 10 mm or more, and preferably Is a deployment-type wearing article according to any one of <1> to <12>, which is 30 mm or less, more preferably 25 mm or less.
<14>
The total value of the lengths in the length direction of one side of the fastening region where the knob portion forming part of the fastening part is present, and the total value of the lengths in the length direction of the one piece of the non-fastening part. The ratio of is preferably 1 or more, more preferably 1.5 or more, and preferably 3 or less, more preferably 2 or less as the former / the latter, any one of the above <1> to <13> The unfoldable wearing article described in 1.
<15>
Each of the pair of fastening tapes is the unfoldable wearing article according to any one of <1> to <14>, in which each has only one fastening region.
<16>
The knob forming portion is present on the vertical side, and in the vertical side, the total length of the vertical sides of the fastening portion is the length of the vertical side of the non-fastening portion. The deployable wearing article according to any one of <1> to <15>, which is less than a total value of directions.

<17>
The unfolded portion is the unfoldable wearing article according to any one of <1> to <16>, wherein the non-fastened portion has a straight line shape in plan view that vertically cuts the fastened region.
<18>
The non-fixed portion constituting the knob portion forming portion existing on the vertical side has a semicircular shape or a semi-elliptical shape that protrudes inward in the lateral direction in a plan view. The deployment-type wearing article as described in any one of ~ <17>.
<19>
<1> to <17> in which the non-fixing portion constituting the knob portion forming portion existing on the vertical side has a convex shape protruding inward in the lateral direction in plan view. The expandable wearing article according to any one of the above.

1 Unfoldable disposable diapers (unfoldable wearing articles)
2 Top sheet 3 Back sheet 4 Absorber 7, 7A, 7B, 7C, 7D, 7E, 7F, 7G, 7H, 7I, 7J, 7K, 7L, 7M, 7N, 70, 7P, 7Q, 7R Fastening tape 70 Fixed Area 71 Free area 72 Fastening area 72c Corner part of fastening area 73 Fastening part 74 Non-fastening part 75 Knob part forming part 7x Vertical side of fastening area 7y Horizontal side of fastening area 8 Target tape 11 Waist part 12 Leg part 1F Ventral part 1M Crotch 1R Dorsal part X Longitudinal direction Y Lateral direction

Claims (4)

A ventral side portion disposed on the wearer's ventral side and a dorsal side disposed on the dorsal side having a longitudinal direction extending from the ventral side of the wearer through the crotch portion to the back side and a lateral direction perpendicular thereto In a deployable wearing article having a fastening tape for fastening on both side edges along the longitudinal direction of the back side part, and a crotch part located between the parts and the crotch part,
The fastening tape has a fixed region fixed to the back side portion and a free region extending outward in the lateral direction from the fixed region, and one surface of the free region in the lateral direction is It is a fastening area with fastening members,
The fastening region has a rectangular shape in plan view and has a pair of lateral sides extending in the lateral direction and a longitudinal side connected to each of the pair of lateral sides and extending in the longitudinal direction. A fastening portion in which the fastening member is disposed and a non-fastening portion in which the fastening member is not disposed,
A corner portion of the fastening region defined by the vertical side and the horizontal side is the fastening portion,
Located on both sides of the edge portion in the length direction with the non-fastening portion functioning as a knob and the non-fastening portion sandwiched between edges of the fastening region including the vertical side and the horizontal side There is a knob forming part consisting of the fastening part ,
An unfoldable wearing article in which a plurality of the knob portion forming portions exist on the vertical side . The front Kiyokohen, longer the longitudinal length of the transverse direction than the length of the non-secured portion which constitutes the knob portion forming portion present in said longitudinal sides, said non-secured portion The unfoldable wearing article according to claim 1, wherein there is not present. In one side of the fastening region where the knob portion forming portion exists, the total value of the lengths of the one side of the fastening portion is the total value of the one side of the non-fastening portion. The unfoldable wearing article according to claim 1 or 2 , which is the above. All the parts other than the edge part in the said fastening area | region are the said fastening parts, The expansion | deployment type wearing article as described in any one of Claims 1-3 .

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