JP2014117322A - Disposable diaper and diaper cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable diaper and a diaper cover, the whole right and left flap parts of which can be stretched.SOLUTION: A disposable diaper 1 includes: a front side part F; a rear side part B and a crotch part C located therebetween in the longitudinal direction y, and further includes: a left flap part LF and a right flap part RF extending from the rear side part B in the width direction x. The left flap part LF and the right flap part RF respectively have a front side edge 2 and a rear side edge 3, and the left flap part LF and the right flap part RF are provided with: a first slit 4a formed extending in the longitudinal direction y, with one end thereof extending to the front side edge 2; and a second slit 4b formed extending in the longitudinal direction y, with one end thereof extending to the rear side edge 3.

Description

  The present invention relates to a disposable diaper and a diaper cover.

  Conventionally, disposable diapers called an open type or a tape type are widely known. Such a type of disposable diaper has a front side portion and a rear side portion in the front-rear direction and a crotch portion located between them, and a left flap portion and a right flap portion extend in the width direction from the rear side portion. The crotch part is placed between the wearer's crotch, the left flap part and the right flap part are placed around the waist of the wearer, and the left flap part and the right flap part are fastened to the front side part. it can. Patent Document 1 discloses a disposable diaper in which slits are provided in the left and right flap portions of such a disposable diaper.

JP 2007-143871 A

  By the way, in the disposable diaper disclosed by patent document 1, by providing a slit in a right-and-left flap part, a right-and-left flap part is formed so that expansion | extension is possible, and the fit property of a wearer's waist circumference can be improved. However, in the disposable diaper of Patent Document 1, the slit is the front edge or the rear edge of the left and right flap parts (the front and rear edges with respect to the front and rear direction of the diaper, The left and right flap portions are fixed in length to the front and rear edges, and the entire left and right flap portions cannot be extended. For this reason, there is a limit to improving the fit around the waist of the wearer.

  This invention is made | formed in view of the said situation, The objective is to provide the disposable diaper and diaper cover which can extend | expand the whole right-and-left flap part.

  The disposable diaper of the present invention that has solved the above problems has a front side portion, a rear side portion, and a crotch portion positioned therebetween in the front-rear direction, and extends in the width direction from the rear side portion. A disposable diaper having a left flap part and a right flap part, wherein an absorbent core is provided in the crotch part, the left flap part and the right flap part have a front side edge and a rear side edge, and the left flap part and the right flap The part is characterized in that a first slit extending in the front-rear direction and having one end extending to the front side edge and a second slit extending in the front-rear direction and extending one end to the rear side edge are formed.

  The present invention also includes a diaper cover having a front side portion, a rear side portion, and a crotch portion positioned therebetween in the front-rear direction, and a left flap portion and a right flap portion extending in the width direction from the rear side portion. The left flap portion and the right flap portion have a front edge and a rear edge, a first slit extending in the front-rear direction to the left flap portion and the right flap portion, and one end extending to the front side edge, and the front-rear direction There is also provided a diaper cover having a second slit formed at one end and extending to the rear edge.

  In the disposable diaper and the diaper cover of the present invention, the left and right flap portions are formed on the left and right flap portions of the diaper or the diaper cover since the first slit extending to the front side edge and the second slit extending to the rear side edge are formed in the left flap portion and the right flap portion. By pulling in the width direction, the widths of the first slit and the second slit provided on the front side edge and the rear side edge of the left and right flap portions are widened, and the left and right flap portions can be extended as a whole. That is, the left and right flaps can be extended in the width direction of the diaper or the diaper cover as a whole with respect to the front and rear direction of the diaper or the diaper cover. Therefore, it becomes possible to adjust the length of the left and right flap portions in accordance with the wearer's body shape.

  It is preferable that a third slit that extends in the front-rear direction and does not extend to the front side edge and the rear side edge is further formed in the left flap part and the right flap part. If the third slit is further formed in the left flap portion and the right flap portion, it is possible to form the left and right flap portions so as to be difficult to break while securing a length that allows the left and right flap portions to be extended in the width direction.

  In the left flap part and the right flap part, a holding member formed by providing a fastener on the base sheet is attached, and the first slit and the second slit or further the third slit is formed in the holding member. Also good.

  It is preferable that the first slit and the second slit or the third slit have a length in the front-rear direction that is at least twice as long as the length in the width direction. If the slits are provided in this way, the length of the left and right flaps can be suitably extended by pulling the left and right flaps in the width direction.

  In the disposable diaper and diaper cover of the present invention, since the first slit and the second slit extending to the front side edge or the rear side edge of the left and right flap parts are formed in the left and right flap parts applied to the wearer's waist, the left and right flaps By pulling the part in the width direction of the diaper or the diaper cover, the widths of the first slit and the second slit provided at the front edge and the rear edge of the left and right flap parts are widened, and the left and right flap parts can be extended as a whole. it can.

The top view which looked at the left flap part in which the slit was formed from the skin side surface is represented. The top view which looked at the left flap part in which the slit was formed from the skin side surface is represented. The top view which looked at the left flap part in which the slit was formed from the skin side surface is represented. An example of the disposable diaper of this invention is represented, and the top view which looked at the disposable diaper from the skin side surface is represented. The VV sectional drawing of the disposable diaper shown in FIG. 4 is represented. The other example of the disposable diaper of this invention is represented, and the top view which looked at the disposable diaper (urine pad) from the skin side surface is represented. The perspective view of the use condition of the disposable diaper shown in FIG. 6 is represented. An example of the diaper cover of this invention is represented, and the top view which looked at the diaper cover from the skin side surface is represented. The IX-IX sectional drawing of the diaper cover shown in FIG. 8 is represented.

  The disposable diaper of the present invention has a front side portion, a rear side portion, and a crotch portion positioned therebetween in the front-rear direction, and has a left flap portion and a right flap portion extending in the width direction from the rear side portion. Is. The disposable diaper of the present invention is worn by putting the crotch part between the wearer's crotch, putting the left flap part and the right flap part around the waist of the wearer, and fastening the left flap part and the right flap part to the front side part can do.

  The disposable diaper of the present invention is typically applicable to a disposable diaper called an open type or a tape type. Moreover, you may use the disposable diaper of this invention as a urine pad used on the skin side surface of another disposable diaper. In this case, the disposable diaper of the present invention is used as a urine pad that can be worn around the waist of the wearer.

  In the present invention, the front-rear direction of the disposable diaper means a direction extending in the front-rear direction of the wearer's crotch when the diaper is worn. The width direction of the disposable diaper means a direction that is on the same plane as the diaper in a state where the diaper is spread in a flat shape, and is orthogonal to the front-rear direction, and corresponds to the left-right direction of the wearer when the diaper is worn. The skin side of a disposable diaper means the side facing the wearer's skin when wearing a diaper, and the outer side of the disposable diaper is the side facing away from the wearer when wearing a diaper Means.

  A front side part is formed in the one end of the front-back direction of a disposable diaper, and means the part which hits a wearer's stomach side at the time of diaper wear. A rear side part is formed in the other end of the front-back direction of a disposable diaper, and means the part which hits a wearer's back side at the time of diaper wear. A crotch part is located between a front side part and a rear side part, and means the part applied to a wearer's crotch. The front side portion, the crotch portion, and the rear side portion are defined by, for example, dividing the disposable diaper into three equal parts in the front-rear direction. In addition, it is preferable that a disposable diaper is formed so that the length of the width direction may become the narrowest in a crotch part.

  The disposable diaper is provided with an absorbent core at the crotch. The absorptive core should just be provided at least in a crotch part, and may be extended and provided from the crotch part to the front side part and / or the rear side part.

  The left flap portion and the right flap portion are portions extending in the width direction from the rear side portion, and are portions that are respectively applied to the wearer's left and right waists when the diaper is worn. Disposable diapers are generally formed such that the length in the width direction is the narrowest in the crotch, and the left and right flaps are, for example, outward in the width direction from the outer edge of the narrowest part of the crotch. Defined as the part to be located. In addition, it is preferable that the left flap portion and the right flap portion do not have an absorbent core. Therefore, the left flap portion and the right flap portion are more outward in the width direction and more absorbent than the outer edge of the narrow portion of the crotch portion. It is preferable to be defined as a portion located outward in the width direction from the core. In the description of the present invention, the left flap portion and the right flap portion may be collectively referred to as “left and right flap portions”.

  The left and right flap portions have a front side edge and a rear side edge. The front side edge and the rear side edge of the left and right flap portions are defined with respect to the front-rear direction of the disposable diaper.

  The left and right flaps may be configured by extending the members constituting the rear side, or may be configured by attaching other members to the members constituting the rear member. May be configured. For example, a holding member such as a fastening tape may be attached to the left and right flap portions. In the present invention, the holding member attached in this way is also included in the left and right flap portions.

  It is preferable that a fastener is provided on the skin side surface of the left and right flap portions. By providing a fastener on the skin side surface of the left and right flap portions, the left and right flap portions can be fastened to the front side portion when wearing disposable diapers. Moreover, a fastener may be provided in a left-right flap part by providing the holding member formed by providing a fastener in a base material sheet in a left-right flap part.

  The disposable diaper is formed, for example, by arranging a top sheet, a back sheet, and an absorbent core between them. In this case, for example, a laminate in which an absorbent core is disposed between the top sheet and the back sheet constitutes a front side portion, a crotch portion, a rear side portion, and left and right flap portions. The disposable diaper may be formed by attaching an absorbent main body in which an absorbent core is disposed between the top sheet and the back sheet to the skin side surface of the exterior sheet. In this case, for example, the exterior sheet constitutes the front side portion, the crotch portion, the rear side portion, and the left and right flap portions, and the absorbent main body does not constitute the left and right flap portions.

  The top sheet is a sheet positioned on the wearer side when the disposable diaper is worn, and is preferably liquid permeable. As the top sheet, for example, a nonwoven fabric formed from hydrophilic fibers such as cellulose, rayon, and cotton, and a hydrophobic property such as polyolefin (eg, polypropylene, polyethylene), polyester (eg, PET), polyamide (eg, nylon), etc. A non-woven fabric formed from fibers, in which the surface of hydrophobic fibers is hydrophilized with a surfactant, can be used. Further, as the top sheet, a woven fabric, a knitted fabric, a plastic film in which holes are formed, or the like may be used.

  The back sheet is a sheet located on the opposite side of the wearer when the disposable diaper is worn, that is, on the outside, and is preferably liquid-impermeable. As the back sheet, a non-woven fabric formed from hydrophobic fibers such as polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), polyamide (for example, nylon), a plastic film, or the like can be used. Moreover, you may use the laminated body of a nonwoven fabric and a plastic film. In the present invention, liquid impermeability includes the meaning of water repellency.

  The exterior sheet and the base sheet may be liquid permeable or liquid impermeable. As the exterior sheet and the base sheet, a sheet material that can be used for the top sheet and the back sheet can be used. The exterior sheet may be formed by, for example, laminating a liquid-impermeable outer sheet on a liquid-permeable inner sheet.

  Each sheet material described above may have stretch elasticity. Examples of materials having stretch elasticity (stretch materials) include natural rubber; synthetic rubber such as styrene-butadiene copolymer and polyisobutylene; synthesis of polyurethane, polyether / polyester, polybutylene terephthalate, polytrimethylene terephthalate, and the like. Resin or the like can be used. For example, fibers formed from stretchable materials may be used to form nonwoven fabrics, woven fabrics, knitted fabrics, etc., or stretchable materials may be formed into a film and used as each sheet material.

  The absorbent core is not particularly limited as long as it includes an absorbent material that can absorb excrement such as urine. As the absorbent core, for example, a molded body obtained by molding the absorbent material into a predetermined shape is used, or the absorbent material is covered with a sheet member such as a paper sheet (for example, tissue paper or thin paper) or a liquid-permeable nonwoven fabric. Things can be used. Examples of the absorbent material contained in the absorbent core include hydrophilic fibers such as cellulose fibers (for example, pulverized pulp fibers), polyacrylic acid-based materials, polyaspartic acid-based materials, cellulose-based materials, starch-acrylonitrile-based materials, and the like. Water-absorbing resin etc. are mentioned. Further, the absorbent material may include a heat-fusible fiber such as a polyolefin fiber such as polyethylene or polypropylene, a polyester fiber such as PET, or a polyamide fiber such as nylon. These heat-fusible fibers may be subjected to a hydrophilic treatment with a surfactant or the like in order to increase the affinity with body fluid such as urine.

  It is preferable that an absorptive material contains a hydrophilic fiber from the point which improves the absorption speed | rates, such as urine. Moreover, it is preferable that an absorptive material contains a water absorbing resin from the point which raises absorption capacity. As the absorbent material, for example, it is preferable to use a material in which a water-absorbing resin is mixed or dispersed in an aggregate of hydrophilic fibers.

  The shape (planar shape) of the absorbent core is not particularly limited. The shape of the absorbent core may be appropriately determined depending on the application, and examples thereof include a substantially rectangular shape, an hourglass shape, a gourd shape, and a battledore shape.

  As a fastener, a hook member, a loop member of a hook, a loop, or a fastener, an adhesive (for example, an adhesive tape, an adhesive layer), or the like may be used. When a hook member of a hook, loop, or fastener is used as a fastener, the loop member of the hook, loop, or fastener may be provided as a fastening corresponding portion on the outer surface of the front side portion of the disposable diaper. Or you may comprise the material (for example, a nonwoven fabric, a woven fabric, a knitted fabric etc.) which functions as an outer surface of the front side part of a disposable diaper as a loop member. When an adhesive is used as the fastener, a plastic film may be provided on the outer side surface of the front side portion of the disposable diaper as the fastening-corresponding portion, or the outer side surface of the front side portion of the disposable diaper may be formed of a plastic film. Among these, it is preferable to use hook members of hooks, loops, and fasteners as the fasteners. As a hook member of the hook, loop, or fastener, for example, a member having a large number of hooks having a hook shape, a hook shape, a mushroom shape, or the like on the surface may be employed.

  In the disposable diaper of the present invention, a plurality of slits extending in the front-rear direction are formed in the left flap portion and the right flap portion, respectively. The disposable diaper of the present invention has slits formed in the left and right flaps, so that when the left and right flaps are pulled in the width direction of the diaper, the width of the slits increases, and the left and right flaps are long to match the wearer's body shape. It is possible to adjust the thickness.

  By the way, when slits are formed in the left and right flap parts, if the slits are not formed so as to extend to the front side edge or the rear side edge of the left and right flap parts, when the left and right flap parts are pulled in the width direction of the diaper, The length by which the flap portion extends is limited. For example, when the left and right flaps are made of a non-stretchable material, the front and rear edges of the left and right flaps must be formed if the slit is not formed to extend to the front or rear edges of the left and right flaps. The length of is not changed before and after pulling the left and right flaps, and the entire left and right flaps cannot be extended.

  Therefore, in the present invention, the left and right flap portions are formed with a first slit extending in the front-rear direction and having one end extending to the front side edge, and a second slit extending in the front-rear direction and one end extending to the rear side edge. If the first slit extending to the front edge and the second slit extending to the rear edge are formed in the left and right flap parts, the front and rear edges of the left and right flap parts are pulled by pulling the left and right flap parts in the width direction of the diaper. The width of the 1st slit and 2nd slit which were provided in can be expanded, and a right-and-left flap part can be extended entirely. That is, the left and right flap portions can be extended in the width direction of the diaper as a whole with respect to the front and rear direction of the diaper. Therefore, it becomes possible to suitably adjust the length of the left and right flap portions in accordance with the wearer's body shape.

  In addition to the first slit and the second slit, the left and right flap portions are preferably formed with a third slit that extends in the front-rear direction and does not extend to the front and rear edges of the left and right flap portions. By providing the third slits in the left and right flap portions, the number of the first slits and the second slits can be reduced, or the lengths of the first and second slits (length in the front-rear direction of the diaper) can be shortened. It is possible to make the left and right flap portions difficult to break.

  It is preferable that a plurality of slits are provided side by side in the width direction of the diaper. Specifically, a plurality of first slits and second slits are preferably provided side by side in the width direction of the diaper, and a plurality of third slits are preferably provided side by side in the width direction of the diaper. By providing a plurality of slits side by side in the width direction of the diaper, the length of the left and right flap portions extending in the width direction of the diaper can be increased while making the left and right flap portions difficult to break.

  A plurality of third slits are preferably provided side by side in the front-rear direction of the diaper. Thus, if the 3rd slit is provided, the length extended in the width direction of the diaper of a right-and-left flap part can be taken long, ensuring the handleability of a right-and-left flap part. The third slit may also be provided side by side with the first slit and / or the second slit in the front-rear direction of the diaper.

  The shape of the slit (first to third slits) is not particularly limited as long as it is provided so as to extend in the front-rear direction (that is, the length in the front-rear direction is longer than the length in the width direction). The slit may be provided in a straight line, or may be provided in a shape such as a polygon or an oval. In addition, it is preferable that the length of the front-back direction is 2 times or more of the length of the width direction, and, as for a slit, it is more preferable that it is 4 times or more. If the slit is provided in such a shape, the left and right flap portions can be suitably extended by pulling the left and right flap portions in the width direction of the diaper.

  The slit is preferably formed with rounded ends in the front-rear direction. Specifically, the first slit is preferably formed with a rounded rear end, the second slit is preferably formed with a rounded front end, and the third slit is a front-back direction. It is preferable that both end portions of the are rounded. If the slits are formed in this way, when the left and right flaps are pulled in the width direction of the diaper, the stress is less likely to concentrate on the front and rear ends of the slit, and the left and right flaps break from the slit. It becomes difficult to do. Examples of the shape with rounded ends in the front-rear direction include an oval shape (including an ellipse) and a dumbbell shape. The dumbbell shape means a shape in which both end portions in the front-rear direction are formed rounded, and an intermediate portion therebetween is formed narrower than both end portions. When the first slit and the second slit are formed in a shape in which the end portions in the front-rear direction are rounded, the first slit and the second slit may have a shape in which one side in the front-rear direction of the shape described above is missing. .

  The length of the slit in the front-rear direction is not particularly limited, but is preferably 3 mm or more, more preferably 5 mm or more, and preferably 50 mm or less, more preferably 40 mm or less. By forming the slit with such a length, it becomes easy to secure a length for extending the diaper of the left and right flap portions in the width direction while ensuring the handleability of the left and right flap portions.

  Examples of slits provided in the left and right flap portions will be described with reference to the drawings. The present invention is not limited to the embodiment shown in the drawings. 1-3, the top view which looked at the left flap part from the skin side surface was shown. 1 to 3 show a left flap portion provided with slits of various shapes. In the drawing, the arrow x represents the width direction, the arrow y represents the front-rear direction, and the direction perpendicular to the plane formed by the arrows x and y represents the thickness direction z.

  The left flap portion LF is configured by attaching the holding member 5 to the diaper main body 11. The holding member 5 is configured by providing a base sheet 7 with a fastener 6 and functions as a fastening tape for a tape-type disposable diaper.

  The left flap portion LF has a front side edge 2 and a rear side edge 3. The left flap portion LF is provided to extend in the width direction x from the rear side portion B. In FIGS. 1 to 3, the upper side of the drawing corresponds to the rear side of the diaper, and the lower side of the drawing is the front side of the diaper. It corresponds to.

  A plurality of slits 4 extending in the front-rear direction y are formed on the base sheet 7 constituting the left flap portion LF to form a slit group. 1 to 3, a plurality of slits 4 are arranged in the width direction x and the front-rear direction y to form a slit group.

  1 to 3, the slit group extends in the front-rear direction y, one end extends to the front edge 2, and the second slit 4 b extends in the front-rear direction y and one end extends to the rear edge 3. And a third slit 4c that extends in the front-rear direction y and does not extend to the front side edge 2 and the rear side edge 3. That is, the left flap portion LF is formed with a first slit 4a having one end extending to the front edge 2 and a second slit 4b having one end extending to the rear edge 3, and further to the front edge 2 and the rear edge 3. A third slit 4c that does not extend is formed. In this way, if the slit group including the first slit 4a and the second slit 4b is formed in the left flap portion LF, the first slit 4a and the second slit 4b are pulled by pulling the left flap portion LF in the width direction x. The width is widened, and the length of the left flap portion LF can be extended as a whole. Therefore, it becomes possible to adjust the length of the left flap part LF according to a wearer's body shape.

  The first slit 4a, the second slit 4b, and the third slit 4c are preferably arranged side by side in the width direction x, as shown in FIGS. At this time, it is preferable that the third slit 4c is arranged between the adjacent first slits 4a or between the adjacent second slits 4b. The slits 4 adjacent to each other in the width direction x are preferably provided so as to partially overlap in the front-rear direction y.

  The left flap portion LF in FIG. 1 is provided with a straight slit 4, the left flap portion LF in FIG. 2 is provided with an oval slit 4, and the left flap portion LF in FIG. A slit 4 having a shape (specifically, a slit 4 having circular openings formed at both ends of a linear shape) is provided. The shape of the slit 4 is not particularly limited as long as the slit 4 is provided so as to extend in the front-rear direction y. As shown in FIGS. 2 and 3, if the slit 4 is formed with a rounded end in the front-rear direction y, the left flap LF breaks when the left flap LF is pulled in the width direction x. It becomes difficult to do. Moreover, if the slit 4 is formed so as to have a width as shown in FIG. 2, the opening area by the slit 4 is increased, and air permeability can be improved.

  Next, an example of the disposable diaper of the present invention will be described with reference to the drawings. In addition, the disposable diaper of this invention is not limited to the embodiment shown by drawing.

  The disposable diaper which has the left flap part shown in FIG. 4 and FIG. 5 was shown. 4 shows a plan view of an open type (tape type) disposable diaper as seen from the side of the skin, and FIG. 5 shows a VV cross-sectional view of the disposable diaper shown in FIG.

  The disposable diaper 1 (1A) is configured by attaching a holding member (fastening tape) 5 to a diaper main body 11. The disposable diaper 1A has a front side portion F, a rear side portion B, and a crotch portion C positioned therebetween in the front-rear direction y, and a left flap portion LF and a right flap portion RF in the width direction x from the rear side portion B. Is extended. The left flap part LF and the right flap part RF are configured by attaching the holding member 5 to the diaper main body 11.

  The diaper main body 11 includes a top sheet 12, a back sheet 13, and an absorbent core 14 disposed therebetween. The absorbent core 14 is provided so as to extend from the crotch portion C to the front side portion F and the rear side portion B. The top sheet 12 is provided on the skin side surface of the disposable diaper 1 and transmits urine and the like excreted from the wearer. Excrement that has permeated through the top sheet 12 is accommodated by the absorbent core 14. The back sheet 13 is provided on the outer surface of the disposable diaper 1 to prevent excrement from leaking outside.

  Side sheets 15 extending in the front-rear direction y are provided on both sides of the top sheet 12 in the width direction x. The side sheet 15 is joined to the top sheet 12, and a standing elastic member 18 is provided at the inner end in the width direction x. The inner end of the side sheet 15 rises toward the wearer's skin due to the contraction force of the standing elastic member 18, thereby forming the rising flap 16, thereby preventing side leakage of excrement such as urine. The side sheet 15 is preferably composed of a liquid-impermeable nonwoven fabric or a liquid-impermeable plastic film.

  The left flap portion LF and the right flap portion RF are configured as described above. The holding member 5 is attached to both ends of the diaper body 11 in the width direction x with the base sheet 7 sandwiched between the side sheet 15 and the back sheet 13. The base sheet 7 has a first slit 4a, a second slit 4b, and a third slit 4c.

  In the left and right flap portions LF, RF, a fastener 6 is provided on the skin side surface of the base sheet 7, and a fastening corresponding portion 17 is provided on the outer side surface of the front side portion F of the diaper main body 11. The disposable diaper 1 is worn by putting the diaper main body 11 between the wearer's crotch, putting the left and right flap portions LF and RF around the wearer's waist, and joining the fastener 6 to the fastening corresponding portion 17. Can do. At this time, since the slits 4 (particularly the first slit 4a and the second slit 4b) are provided in the left and right flap portions LF and RF, the lengths of the left and right flap portions LF and RF are adjusted in accordance with the wearer's body shape. It becomes possible.

  In the disposable diaper 1A, the left and right flap portions LF, RF or the base sheet 7 may be made of a stretchable material. In this case, even if the slits 4 are formed in the left and right flap portions LF and RF, it becomes easy to improve the adhesion around the waist of the wearer.

  In the disposable diaper 1 </ b> A, waist elastic members 19 are disposed between the top sheet 12 or the side sheet 15 and the back sheet 13 at both ends in the front-rear direction y of the diaper main body 11. The waist elastic member 19 forms a waist gather along the waist of the wearer, and prevents leakage of excrement such as urine from the back side or the abdomen side.

  In the disposable diaper 1A, leg elastic members 20 are disposed between the side seat 15 and the back seat 13 at both ends of the crotch C in the width direction x. Leg gathers along the legs of the wearer are formed by the leg elastic members 20, and leakage of excrement such as urine from the crotch is prevented.

  6 and 7 show a urine pad provided with a holding member as another embodiment of the disposable diaper of the present invention. 6 represents a plan view of the disposable diaper (urine pad) as seen from the side of the skin, and FIG. 7 represents a perspective view of the disposable diaper shown in FIG. 6 in use. In FIG. 6 and FIG. 7, the same component as the disposable diaper shown in FIG. 4 and FIG. The disposable diaper shown in FIGS. 6 and 7 is substantially different from the disposable diaper shown in FIGS. 4 and 5, but the basic configuration is almost the same.

  The disposable diaper 1 (1B) is configured such that a holding member 5 is attached to an outer surface of a diaper main body 11 formed by arranging an absorbent core 14 between a top sheet 12 and a back sheet 13. The holding member 5 is provided across the rear side portion B of the diaper main body 11 in the width direction x, and forms left and right flap portions LF and RF. In the holding member 5, a slit 4 extending in the front-rear direction y is formed, and a first slit 4a, a second slit 4b, and a third slit 4c are formed in the same manner as the disposable diaper 1A shown in FIGS. . 6 and 7, the slit 4 is provided in a straight line, but the shape of the slit 4 is not limited to this.

  The disposable diaper 1B shown in FIGS. 6 and 7 is used by being placed on an underwear such as underpants, a diaper cover, or the skin side surface of another disposable diaper. Also in the disposable diaper 1 </ b> B, the diaper main body 11 is applied to the wearer's crotch, the left and right flap portions LF and RF are applied to the wearer's waist, and the fastener 6 provided on the holding member 5 is attached to the front side portion of the diaper main body 11. It can be mounted by joining to the outer surface of F (see FIG. 7). At this time, since the slits 4 (particularly the first slit 4a and the second slit 4b) are provided in the left and right flap portions LF and RF, the lengths of the left and right flap portions LF and RF are adjusted in accordance with the wearer's body shape. It becomes possible.

In the disposable diaper 1B, it is sufficient that the holding member 5 functions at least when the disposable diaper 1B is mounted. By forming the base material sheet 7 of the holding member 5 with a flexible material, the slit 4 is formed in the base material sheet 7. Coupled with this, it is possible to reduce the tightening around the waist and improve the feeling of wearing. In the disposable diaper 1B used in this manner as a urine pad, the substrate sheet 7, for example, it is preferably made from a relatively low basis weight of the nonwoven fabric of basis weight ^{10g / m 2 ~30g / m 2} .

  Next, the diaper cover of the present invention will be described. The diaper cover of the present invention has the same configuration as the disposable diaper of the present invention except that the absorbent core is not provided. That is, the diaper cover of the present invention has a front side portion and a rear side portion in the front-rear direction, a crotch portion positioned therebetween, and a left flap portion and a right flap portion extending in the width direction from the rear side portion. The left flap part and the right flap part have a front edge and a rear edge, extend to the left flap part and the right flap part in the front-rear direction, and extend in the front-rear direction, with a first slit extending to the front edge, A second slit whose one end extends to the rear edge is formed. And it is preferable that the left flap part and the right flap part are further formed with a third slit that extends in the front-rear direction and does not extend to the front edge and the rear edge.

  The description regarding each structure of diaper covers, such as a slit, is the same as the above. The material constituting the diaper cover is not particularly limited, and the above-described nonwoven fabric, woven fabric, knitted fabric, plastic film, and a laminate thereof can be used. For example, the diaper cover may be formed of a sheet member in which the front side portion, the crotch portion, the rear side portion, and the left and right flap portions are one continuous.

  The example of the diaper cover of this invention is demonstrated with reference to FIG. 8 and FIG. FIGS. 8 and 9 show a diaper cover in which the absorbent core is removed from the disposable diaper shown in FIGS. 4 and 5. FIG. 8 shows a plan view of the diaper cover of the present invention as seen from the skin side, and FIG. 9 shows a IX-IX sectional view of the diaper cover shown in FIG. In addition, the diaper cover of this invention is not limited to the embodiment shown by drawing.

  The diaper cover 21 is configured by attaching a holding member 25 to a diaper cover main body 31. The diaper cover 21 has a front side portion F, a rear side portion B, and a crotch portion C positioned between them in the front-rear direction y, and extends from the rear side portion B in the width direction x to the left flap portion LF. A right flap portion RF is provided. The left flap portion LF and the right flap portion RF are configured by attaching the holding member 25 to the diaper cover main body 31.

  The diaper cover main body 31 is configured such that a top sheet 32 is laminated on a back sheet 33 and side sheets 35 extending in the front-rear direction y are provided on both sides of the top sheet 32 in the width direction x. The side sheet 35 is joined to the top sheet 32, and a standing elastic member 38 is provided at the inner end in the width direction x. The inner end of the side seat 35 rises toward the wearer's skin by the contraction force of the standing elastic member 38, and the rising flap 36 is formed. The diaper cover 21 shown in FIGS. 8 and 9 is used by placing a separate urine pad or the like between a pair of rising flaps 36.

  The holding member 25 is attached to both ends of the diaper cover main body 31 in the width direction x with a fastener 26 provided on the skin side surface of the base sheet 27, the base sheet 27 being sandwiched between the side sheet 35 and the back sheet 33. It has been. The left and right flap portions LF and RF have a front side edge 22 and a rear side edge 23, and the left and right flap portions LF and RF are formed with a first slit 24a, a second slit 24b, and a third slit 24c in the base sheet 27. Has been.

  The diaper cover main body 31 is provided with a fastening support portion 37 on the outer side surface of the front side portion F. The diaper cover 21 applies the diaper cover main body 31 to the wearer's crotch, and the left and right flap portions LF and RF are worn by the wearer. It is possible to attach the fastener 26 by joining the fastener 26 to the fastening corresponding portion 37. At this time, since the slits 24a to 24c (particularly the first slit 24a and the second slit 24b) are provided in the left and right flap portions LF and RF, the lengths of the left and right flap portions LF and RF are adjusted according to the wearer's body shape. It becomes possible to adjust.

  A waist elastic member 39 is disposed between the top sheet 32 or the side sheet 35 and the back sheet 33 at both ends in the front-rear direction y of the diaper cover main body 31. The waist elastic member 39 forms a waist gather along the circumference of the wearer's waist and prevents excrement such as urine from the back side and the abdomen side from leaking.

  Leg elastic members 40 are disposed between the side seat 35 and the back seat 33 at both ends in the width direction x of the crotch portion C of the diaper cover main body 31. Leg gathers are formed around the legs of the wearer by the leg elastic members 40, and leakage of excrement such as urine from the crotch is prevented.

1, 1A, 1B: Disposable diapers F: Front side B: Rear side C: Crotch LF: Left flap part RF: Right flap part 2, 22: Front side edge 3, 23: Rear side edge 4: Slit, 4a: 1st slit, 4b: 2nd slit, 4c: 3rd slit 5,25: Holding member 6,26: Fastener 7,27: Base material sheet 12,32: Top sheet 13,33: Back sheet 14: Absorptive Core 15, 35: Side seat 16, 36: Rising flap 17, 37: Fastening corresponding part

Claims (7)

A disposable diaper having a front side part and a rear side part in the front-rear direction and a crotch part positioned therebetween, and having a left flap part and a right flap part extending in the width direction from the rear side part,
The crotch is provided with an absorbent core,
The left flap part and the right flap part have a front side edge and a rear side edge,
The left flap portion and the right flap portion are formed with a first slit extending in the front-rear direction and having one end extending to the front edge and a second slit extending in the front-rear direction and one end extending to the rear edge. Disposable diapers characterized by   The disposable diaper according to claim 1, wherein the left flap portion and the right flap portion are further formed with a third slit extending in the front-rear direction and not extending to the front side edge and the rear side edge. The left flap part and the right flap part are attached with a holding member formed by providing a fastener on a base sheet,
The disposable diaper according to claim 1 or 2, wherein the first slit and the second slit, or the first slit, the second slit, and the third slit are formed in the holding member.   The length in the front-rear direction of the first slit and the second slit, or the first slit, the second slit, and the third slit is more than twice the length in the width direction. The disposable diaper as described in any one of. A diaper cover having a front side part and a rear side part in the front-rear direction and a crotch part located between them, and having a left flap part and a right flap part extending in the width direction from the rear side part,
The left flap part and the right flap part have a front side edge and a rear side edge,
The left flap portion and the right flap portion are formed with a first slit extending in the front-rear direction and having one end extending to the front edge and a second slit extending in the front-rear direction and one end extending to the rear edge. A diaper cover characterized by   The diaper cover according to claim 5, wherein the left flap portion and the right flap portion are further formed with third slits extending in the front-rear direction and not extending to the front side edge and the rear side edge.   The length in the front-rear direction of the first slit and the second slit, or the first slit, the second slit, and the third slit is more than twice the length in the width direction. Diaper cover as described in.

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