JP6080467B2 - Wearing article - Google Patents

Description

  The present invention relates to a wearing article suitable for use as a disposable diaper, a disposable diaper cover, an incontinence pad holder, or the like.

  These wearing articles, which connect the front and rear waist areas of the wearing article so as to be separable via a fastener, are well known. For example, if the worn article is a disposable diaper, it is well known under the name of an open diaper. In addition, an example in which the fastener is provided at the front end edge of the panel portion extending from the side edge of the rear waist region of the worn article is also well known. Furthermore, an example in which the panel portion can elastically expand and contract in the lateral direction of the diaper is well known.

  For example, a disposable diaper described in Japanese Patent Application Laid-Open No. 2005-95648 (Patent Document 1) has an elastic wing that extends laterally from a side edge of a rear waistline region, and a tape fastener is provided at the tip of the elastic wing. It is attached. The elastic wing is formed by sandwiching an elastic plastic film in a laterally stretched state with two nonwoven fabrics, and can be stretched and contracted in the lateral direction. The tape fastener is used to detachably connect the front waistline region and the rear waistline region via the elastic wing, and the front-rear dimension of the diaper, which is the width of the tape fastener, is at the tip of the elastic wing. The tape fastener is smaller than the longitudinal dimension, that is, the tape fastener is narrower than the elastic wing.

JP 2005-95648 A

  When the conventional diaper is worn by an infant, the elastic wing is pulled from the rear waistline region toward the front waistline region, and the tape fastener is fixed to a required portion of the front waistline region in an elastically stretched state. When pulling the elastic wing, it is usual to have a narrow tape fastener. The elastic wing pulled in such a manner is stretched in the lateral direction, while the central portion in the front-rear direction, in other words, the central portion in the width direction is in a tension state and closely adheres to the front waistline region that covers the diaper wearer's skin. The front edge and the rear edge of the elastic wing may warp away from the front waistline region. In addition to the unfavorable appearance of the elastic wing in such a state, the outer surface of the diaper worn may be impaired and the outer surface may be uncomfortable. In addition, shirts and skirts worn by infants may be inflated to deteriorate the appearance of the shirts and skirts.

  The subject of the present invention is to provide an improved worn article so that the appearance of the worn article when in a worn state can be kept good.

  In order to solve the above-described problems, the present invention is directed to a crotch region interposed between a front waistline region and a rear waistline region in the front-rear direction of a chassis having a front-rear direction and a lateral direction orthogonal to each other. In the rear waist region, panel portions extend from both side edge portions of the chassis extending in parallel to each other in the front-rear direction, and fasteners for connecting the front and rear waist regions to the extended front edge portion of the panel portion. It is the wearing article in which the part is formed.

In this wearing article, the features of the present invention are as follows. The panel portion is formed by an elastic sheet capable of repeating elastic expansion and contraction in the lateral direction, and has a base edge portion extending in the front-rear direction having a joint portion with the chassis, and the base edge And the tip edge portion extending in the front-rear direction in parallel with the portion. A front edge portion and a rear edge portion are formed between the base edge portion and the tip edge portion, and a separation dimension in the front-rear direction between the front edge portion and the rear edge portion is determined from the base edge portion. It gradually becomes smaller toward the tip edge. The fastener portion includes a tape portion having a fixed region joined to the tip edge portion and an extension region extending in the lateral direction from the tip edge portion, and a required portion of the front waist region in the extension region. It forms with the fastening part which can be attached or detached with respect to. The front edge portion and the rear edge portion are formed in a region deviating from a central region located on an extension line of the fixed region in the lateral direction, and the elastic sheets are folded along the respective edge portions to each other. It is joined.

  In one embodiment of the present invention, the panel portion is trapezoidal, and the front edge extends in the front-rear direction and is parallel to the base edge, and the front edge and the rear edge Are equal in length and have the same angle of intersection with the base edge.

According to still another embodiment of the invention, the pre-Symbol fixing region is situated between the rear edge and the front edge and, overlapping the elastic sheet is folded and joined together It joins to the tip edge part so that there is no.

  In another embodiment of the present invention, the chassis has leg elastic members extending in the front-rear direction at both side edges, and the fastener portion forms a part of the contour of the fixed area. An extension line of a line having a front edge portion and connecting the front edge portion and the front end portion of the joint portion at the base edge portion intersects the elastic member.

  In another embodiment of the present invention, the elastic sheet is folded so that at least three of the elastic sheets are stacked.

  In another embodiment of the present invention, the folded elastic sheet has a width in the range of 3-15 mm.

In one another embodiment of the present invention, slits before Symbol in Hisashiiki extending in the longitudinal direction are formed a number to the said lateral and said front-back direction.

  In the wearing article according to the present invention, the panel portion extending from both side edge portions of the chassis is formed of an elastic sheet, and at least one of the front edge portion and the rear edge portion of the panel portion is provided with the elastic sheet. They are folded and joined together. When the center part of the front and rear direction of the panel part is pulled in the waist direction to wear the worn article, the elastic sheet is folded even if the panel part is deformed so that the center part elastically extends in the waist direction. The front edge part and / or the rear edge part, which are difficult to be deformed, can easily adhere to the outer surface of the front waistline region, can maintain the appearance of the wearing article without damaging the smoothness of the outer surface. .

The partial fracture top view of a disposable diaper shown as an example of a wearing article. The elements on larger scale of FIG. The III-III line expanded sectional view of FIG. The figure similar to FIG. 2 which shows an example of an embodiment.

  Taking a disposable diaper as an example of the wearing article according to the present invention, the details of the present invention will be described as follows.

  The diaper 1 in FIG. 1 is of an open type and has a substantially rectangular chassis 20. The chassis 20 includes a liquid-permeable top sheet 2 and a liquid-impervious back sheet 3, and an absorbent body 10 is interposed between both the sheets 2 and 3. The two sheets 2 and 3 are also overlapped at a portion extending from the peripheral edge of the absorbent body 10 and joined via a hot melt adhesive (not shown). The lateral direction and the front-rear direction of the diaper 1 are indicated by double-headed arrows X and Y. The chassis 20 has a front waistline region 6, a rear waistline region 7, and a crotch region 8 interposed between both the regions 6 and 7 in the front-rear direction Y. In the front waistline region 6 and the rear waistline region 7, belt-like waistline elastic members 11, 12 extending in the lateral direction X are between the top sheet 2 and the backsheet 3, and extend to at least one of the two sheets 2, 3. It is attached in a state. The crotch region 8 includes a plurality of leg-hole elastic members 13 extending in the front-rear direction Y along the side edge 21 of the chassis 20 between the top sheet 2 and the back sheet 3. It is attached to one side in an extended state. In the preferred chassis 20, the leg-hole elastic member 13 enters at least the rear waist area 7 of the front and rear waist areas 6, 7.

  1 and 2, the panel portion 30 extends in the lateral direction X from each of the side edge portions 21 of the rear waistline region 7 in the chassis 20. The panel portion 30 is formed of an elastic sheet 31 that can repeat elastic expansion and contraction in the lateral direction X, and a fastener portion 37 is formed on the elastic sheet 31. The panel part 30 has a base edge part 32, a front edge part 33, a front edge part 34, and a rear edge part 36, while the base edge part 32 and the front edge part 33 extend in the front-rear direction Y, The front edge 34 and the rear edge 36 extend between the base edge 32 and the tip edge 33. The base edge portion 32 is located between the back sheet 3 and the later-described leakage barrier 16 in the thickness direction of the diaper 1, and is joined to both of these 3 and 16 via a hot melt adhesive 17. The fastener part 37 has a tape part 38 and a fastening part 39. The tape part 38 is formed of a non-extensible nonwoven fabric or a plastic film, and has a fixed area 38a and an extended area 38b. The fixed region 38a is joined to the panel portion 30 so as not to be peeled off through a joining means (not shown) such as a hot melt adhesive. The extension region 38 b is a grippable portion extending in the lateral direction X from the tip edge portion 33, and has a fastening portion 39 on the inner surface thereof. The fastening portion 39 is detachable from a target area (not shown) formed on the outer surface of the front waistline area 6 or an appropriate portion instead of the target area, and is known as a trade name Velcro (registered trademark) or the like. It is possible to use a hook member or an adhesive of a mechanical fastener.

  In each of the side edges 21 of the chassis 20, the leakage breakwater 16 extends in the front-rear direction Y. The breakwater 16 is formed of a water-repellent sheet, more preferably a water-repellent and liquid-impervious sheet, and the outer edge 16a and the inner edge 16b are parallel to each other, and are parallel to each other. It has a front edge 16c and a rear edge 16d. The outer edge 16 a, the front edge 16 c, and the rear edge 16 d are joined to the chassis 20 via a hot melt adhesive 17. The inner edge 16 b is not joined to the chassis 20 in at least the crotch region 8 in the front-rear direction Y, and can be separated from the topsheet 2 in the thickness direction of the chassis 20. The inner edge portion 16b also has a sleeve 18, and a thread-like elastic member 19 is attached to the inner side of the sleeve 18 in a stretched state via a hot melt adhesive (not shown). When the diaper 1 is worn and the chassis 20 is bent in the front-rear direction Y with the surface sheet 2 inward, the thread-like elastic member 19 contracts, and the inner edge 16b extends from the surface sheet 2. It separates and it becomes the state where the leak-proof wall 16 stood with respect to the surface sheet 2, and it can prevent that the bodily fluid on the surface sheet 2 leaks sideways.

  Further, in FIG. 2, which is a partially enlarged view of FIG. 1, in the panel portion 30, the front edge portion 34 extending in the lateral direction X from the base edge portion 32 intersects with the base edge portion 32 at the intersection angle α, and the rear edge portion 36 is the base edge. It intersects the edge 32 at an intersection angle β. The intersection angles α and β are in the range of 50-80 °, and in the preferred panel portion 30, the intersection angle α and the intersection angle β are equal. Moreover, it is preferable that the length of the base edge part 32 exists in the range of 40-130 mm, and the length of the front-end | tip edge part 33 exists in the range of 20-100 mm. If the crossing angles α and β are smaller than 50 °, it becomes difficult to pull the waistline elastic member 12 in the waistline direction by the pulling force in the lateral direction X that acts on the fastener portion 37. Further, if the intersection angles α and β are larger than 80 °, the panel unit 30 may be larger than necessary. The length of the front edge portion 34 and the rear edge portion 36 is a value determined by the length of the base edge portion 32 and the tip edge portion 33 and the sizes of the crossing angles α and β. The part 34 and the rear edge part 36 have the same length. Therefore, the preferable shape of the panel part 30 in this invention is an isosceles trapezoid.

3, which is an enlarged sectional view taken along line III-III in FIG. 2, the elastic sheet 31 forming the panel portion 30 is bent toward the outside of the diaper 1 along the front edge portion 34 and the rear edge portion 36. The elastic sheets 31 are overlapped with each other and joined to each other via the hot melt adhesive 43 to form the front overlapping portion 41 and the rear overlapping portion 42. Before the width W ₁ of the front superimposition portion 41 to edge 34 is measured in a direction perpendicular to the extending direction, and W ₂ of the rear superimposing section 42 as measured in the direction orthogonal to the direction in which the trailing edge 36 extends ( 2), in the range of 3-15 mm. In these overlapping portions 41 and 42, the elastic sheets 31 can be joined together by the hot melt adhesive 43 or other adhesives, and the elastic sheets 31 are embossed under heating or non-heating conditions. Can be joined.

Referring again to FIG. 2, a fixing area 38 a in the fastener portion 37 is attached to the front end edge portion 33 in the panel portion 30 using a bonding means (not shown) such as an adhesive or embossing. The fastener portion 37 has a width W ₃ in the front-rear direction Y, and the width W ₃ is smaller than the separation dimension D ₁ between the front overlapping portion 41 and the rear overlapping portion 42 at the front edge portion 33, and the front overlapping portion 41. And it is attached to the panel part 30 so that it may not overlap with the back superimposition part 42. FIG.

  When wearing the diaper 1, the front and rear waist regions 6 and 7 are applied to the waist of the wearer, the extension region 38 b of the fastener portion 37 is gripped, and the panel portion 30 is stretched appropriately along the waist around the fastening portion 39 is fixed to a required part such as a target zone formed in the front waistline region 6. When the panel portion 30 at this time is viewed in the panel portion 30 of FIG. 2, the central region 45 located on the extension of the fixed region 38a in the elastic sheet 31 is extended in the lateral direction X in FIG. It corresponds to that. On the other hand, the front edge portion 34 and the rear edge portion 36 of the panel portion 30 are formed with a front overlapping portion 41 and a rear overlapping portion 42, and a tension for extending the elastic sheet 31 in the lateral direction X acts. Even if it is in a state where it is difficult to be deformed, it is unlikely to be warped toward the outer surface side of the panel portion 30. Therefore, when the outer surface of the diaper 1 after wearing is viewed, the portion where the panel portion 30 exists is smooth and does not impair the appearance of the diaper 1.

  Further, the rear edge portion 36 that is difficult to deform causes the tension in the lateral direction X acting on the fastener portion 37, in other words, the tension in the waistline direction to act on the elastic member 12 in the rear waistline region 7, so that the rear waistline region 7 is in close contact with the wearer. It also works to make it happen.

  Furthermore, the fastening region 38a of the fastener portion 37 pulled in the waistline direction is formed by the diaper wearer wearing the leg-hole elastic member 13 in the chassis 20 through the panel portion 30 as indicated by virtual lines 46 and 47 in FIG. A force can be applied so that the diaper 1 can be lifted upward from the body, thereby preventing the diaper 1 from sliding down. The imaginary lines 46 and 47 are the front edge portion 38c forming a part of the outline of the fixed region 38a and the hot melt adhesive 17 that joins the panel portion 30 to the chassis 20 and the breakwater 16. This is a line connecting the front end portion 50 of the formed joint portion 48.

  FIG. 4 is a view similar to FIG. 2 showing an example of the embodiment. A large number of slits 60 extending in the front-rear direction Y with respect to the elastic sheet 31 are formed in the central region 45 of the panel unit 30 in FIG. When the fastener portion 37 is pulled in the lateral direction X and is in the state indicated by the phantom line, the central region 45 where the slit 60 is formed is easily elastically stretched, while the front overlapping portion along the front edge portion 34. 41 and the rear overlapping portion 42 along the rear edge portion 36 are portions that are elastically extremely difficult to extend as compared with the central region 45, and can suppress deformation of the front edge portion 34 and the rear edge portion 36. The slit 60 indicated by the phantom line in FIG. 4 shows the slit 60 which is deformed so as to open a large opening when the elastic sheet 31 is pulled in the lateral direction X for convenience, but in the lateral direction X. In the actual panel portion 30 that has been pulled, each of the slits 60 is in a position moved to the right from the illustrated position.

  In the present invention, in the diaper 1 formed as described above, at least one of the front overlapping portion 41 and the rear overlapping portion 42 can have three or more elastic sheets 31 stacked. Moreover, this invention can also be implemented in the aspect which makes an overlapping part only in one of the front edge part 34 and the rear edge part 36. FIG. In the front overlapping portion 41 and / or the rear overlapping portion 42, the elastic sheet 31 can be folded on the inner surface side of the panel portion 30.

1 Diapers (wearing articles)
6 Front waist area 7 Rear waist area 8 Inseam area 13 Leg elastic member 21 Side edge part 30 Panel part 31 Elastic sheet 32 Base edge part 33 Front edge part 34 Front edge part 36 Rear edge part 37 Fastener part 38 Tape part 38a Fixing band 38b extending region 38c leading edge 39 secured portion 45 the central zone 46 line 47 line 48 junction 50 forward end portion 60 slit W _{1, W 2} width X transverse direction Y longitudinal direction α crossing angle β angle of intersection

Claims (7)

A crotch region is interposed between a front waistline region and a rear waistline region in the front / rear direction of the chassis having a front / rear direction and a lateral direction orthogonal to each other, and the chassis extends in parallel to the front / rear direction in the rear waistline region. A panel part extends from both side edge parts of the article, and a wearing part in which a fastener part for connecting the front and rear waistline regions is formed on the leading edge part of the extended panel part,
The panel portion is formed by an elastic sheet capable of repeating elastic expansion and contraction in the lateral direction, and has a base edge portion extending in the front-rear direction having a joint portion with the chassis, and the base edge And a front edge portion extending in the front-rear direction in parallel with a portion, a front edge portion and a rear edge portion are formed between the base edge portion and the front edge portion, and the front edge portion and the The distance in the front-rear direction from the rear edge is gradually reduced from the base edge toward the tip edge,
The fastener portion includes a tape portion having a fixed region joined to the tip edge portion and an extension region extending in the lateral direction from the tip edge portion, and a required portion of the front waist region in the extension region. Formed with a detachable fastening portion,
The front edge portion and the rear edge portion are formed in a region deviating from a central region located on an extension line of the fixed region in the lateral direction, and the elastic sheets are folded along the respective edge portions to each other. A wearing article characterized by being bonded.   The panel portion is trapezoidal, the front edge extends in the front-rear direction and is parallel to the base edge, the front edge and the rear edge are equal in length, and the base edge The wearing article according to claim 1, wherein the angles of intersection with each other are equal. Located between the front Symbol fixed region is the leading edge and the trailing edge portion, and joined to the leading edge so as not to overlap with said elastic sheet is folded and joined together The wearing article according to claim 1 or 2. The chassis has a leg elastic members extending under tension to the front-rear direction to the opposite side edge portions, has the leading edge in which the fastener portion forms part of the contour of the fixed area, the front edge The wearing article according to claim 3, wherein an extended line of a line connecting the front end portion of the joining portion at the base edge portion intersects with the leg- hole elastic member. The elastic sheet is worn article according to any one of claims 1-4 which is folded so that at least three sheets overlapped in one edge even without low.   The wearing article according to any one of claims 1 to 5, wherein a width of the folded elastic sheet is in a range of 3 to 15 mm. The said elastic sheet in the said panel part is a wearing article in any one of Claims 1-6 in which many slits extended in the said front-back direction in the said center area are formed in the said front-back direction and the said horizontal direction.

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