JP2011156275A - Diaper cover and disposable diaper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a diaper cover enabling to easily attain an improved fitting property to a wearer's waist. <P>SOLUTION: The diaper cover 1 includes a front section F and a back section B in a front-back direction y, an intermediate section M located therebetween, and a right waist section 2 and a left waist section 3 extending in the width direction x from the back section B. The diaper cover 1 further includes: first fastening tools 4 at the right waist section 2 and the left waist section 3 respectively; an opening 5 in which the left waist section 3 is insertable, located inward in the width direction x with respect to the first fastening tool 4R of the right waist section 2; and/or an opening 5 in which the right waist section 2 is insertable, located inward in the width direction x with respect to the first fastening tool 4L of the left waist section 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

  Conventionally, a diaper cover having a right waist portion and a left waist portion extending in the width direction from a rear portion in the front-rear direction is known. Such a diaper cover is worn by fixing the right waist portion and the left waist portion around the waist of the wearer. For example, Patent Document 1 discloses a diaper cover in which a fastener is provided on one of a right waist part and a left waist part, and the right waist part and the left waist part can be expanded and contracted.

JP 2006-42863 A

  However, the diaper cover disclosed in Patent Document 1 has a right waist portion that overlaps the left waist portion or a left waist portion that overlaps the right waist portion and the left and right waist portions are fixed around the waist of the wearer. Either the left waist portion or the left waist portion is hidden inside the other waist portion. Therefore, when wearing the diaper cover, the wearer is unlikely to pull the waist portion located inside, and the waist portion is difficult to fix around the waist of the wearer with good fit.

  This invention is made | formed in view of the said situation, The objective is to provide the diaper cover and disposable diaper which can improve the wearability of a wearer's waist circumference easily.

  The diaper cover of the present invention that has solved the above problems includes a front part and a rear part in the front-rear direction, an intermediate part positioned between them, a right waist part extending in the width direction from the rear part, and a left part And an opening in which a first fastener is provided in each of the right waist portion and the left waist portion, and the left waist portion can be inserted inward in the width direction from the first fastener of the right waist portion, and / or Or it has the feature in which the opening which can insert a right waist part is provided in the width direction inward from the 1st fastener of a left waist part. The diaper cover of the present invention has an opening provided in the width direction inward of the first fastener in the right waist portion and / or the width inward of the first fastener in the left waist portion, so that the right waist portion and the left waist are provided. The diaper cover can be worn by pulling both of the parts while fixing the right waist part and the left waist part around the waist of the wearer. Therefore, when a wearer wears a diaper cover, the wearer can easily improve the fit around the waist.

  It is preferable that a reinforcing material is provided around the opening. By providing the reinforcing material around the opening, it becomes difficult for the diaper cover to break from the opening.

  The opening is preferably long in the front-rear direction. If the opening has a shape that is long in the front-rear direction, the right waist portion or the left waist portion can be easily inserted into the opening. The opening is more preferably a substantially linear slit that is long in the front-rear direction. By providing the opening in this manner, the strength of the diaper cover is suppressed from being lowered in the width direction, and the handleability is improved.

  The diaper cover is provided with an opening in the right waist, and the width of the left waist is narrowed toward the end thereof, and / or an opening is provided in the left waist, and the right The width of the waist portion is preferably narrower toward the end portion. Thus, if the right waist part and the left waist part are formed, it becomes easy to insert the right waist part or the left waist part into the opening. Moreover, a wearer's buttocks and waist circumference are widely covered by a right waist part and a left waist part, and the wearing feeling of a diaper cover becomes easy to improve.

  The right waist portion and the left waist portion are preferably extendable. If the right and left waist parts can be expanded and contracted, it is easy to improve the fit of the diaper cover wearer's waist by fixing the left and right waist parts around the waist while stretching the left and right waist parts Become.

  The first fastener is preferably provided on the inner surface of the right waist portion and the inner surface of the left waist portion. By providing the first fasteners in this way, the handleability of the left and right waist portions and the first fasteners is enhanced. A plurality of first fasteners may be provided on each of the right waist portion and the left waist portion. By providing the first fasteners in this way, it becomes difficult for all the joints of the first fasteners to come off at once, and the left and right waist portions are easily fixed stably around the wearer's waist.

  Preferably, the front part is provided with a right flap part and a left flap part extending in the width direction, and a second fastener is provided on each of the inner surface of the right flap part and the inner surface of the left flap part. With such a configuration, the adhesion around the wearer's legs is enhanced, and the fit of the diaper cover is improved.

  The second fastener has a substantially linear shape having a predetermined width, and the second fastener is provided so that the substantially linear shape is directed forward in the front-rear direction and inward in the width direction of the diaper cover. preferable. By providing the second fastener in this way, the wearer can easily pull the left and right flaps upward while wearing the diaper cover while expanding the left and right flaps in the left and right direction of the wearer. It becomes easy to improve fit around the leg of the person.

  It is preferable that the right flap portion, the left flap portion, and the intermediate portion can be expanded and contracted. If these parts of the diaper cover can be expanded and contracted, pull the wearer's left and right flaps in the left and right direction while pulling the wearer upwards, and fix the left and right flaps to the wearer's abdomen. It becomes easy to improve fit around the leg of the person.

  A plurality of second fasteners may be provided in each of the right flap portion and the left flap portion. Thus, by providing the 2nd fastener, it becomes difficult to remove | release all joining of a 2nd fastener at once, and it becomes easy to fix a right-and-left flap part to a wearer's abdomen stably.

  The present invention also provides a disposable diaper in which an absorbent core is provided at an intermediate portion of the diaper cover of the present invention. The disposable diaper of the present invention can also easily improve the fit of the wearer's waist.

  The diaper cover and disposable diaper of the present invention can fix the right waist and the left waist around the waist of the wearer while pulling both the right waist and the left waist. Easy to improve fit.

1 represents one embodiment of the diaper cover of the present invention. The installation example of a 1st fastener is represented. The example of the wearing method of the diaper cover of this invention is represented. 1 represents one embodiment of the disposable diaper of the present invention. The AA sectional view of the disposable diaper of Drawing 4 is expressed.

  The diaper cover of this invention is demonstrated with reference to drawings. In addition, the diaper cover of this invention is not limited to the embodiment shown by drawing. FIG. 1 shows an example of the diaper cover of the present invention. In the figure, the arrow x is defined as the width direction and the arrow y is defined as the front-rear direction.

  The diaper cover 1 has a front-rear direction y and a width direction x. The front-rear direction y means a direction that extends in the front-rear direction of the wearer's crotch when the wearer wears the diaper cover. In FIG. 1, the lower side corresponds to the front and the upper side corresponds to the rear. The width direction x means a direction that is on the same plane as the diaper cover 1 and is orthogonal to the front-rear direction y. The width direction x corresponds to the left and right direction of the wearer when the wearer wears the diaper cover. The diaper cover 1 also has an inner surface located on the wearer side when the diaper cover is worn, and an outer surface located on the opposite side of the wearer when the diaper cover is worn.

  The diaper cover 1 has a front part F, a rear part B, and an intermediate part M positioned between them in the front-rear direction y. The front portion F means a portion that is formed at one end in the front-rear direction y of the diaper cover 1 and is applied to the wearer's stomach when wearing the diaper cover. The rear part B means a part that is formed at the other end in the front-rear direction y of the diaper cover 1 and is applied to the wearer's back when the diaper cover is worn. The middle part M means a part located between the front part F and the rear part B and applied to the wearer's crotch. In the present invention, the front portion F, the intermediate portion M, and the rear portion B are defined as portions that do not include the right waist portion 2, the left waist portion 3, the right flap portion 7, and the left flap portion 8 described later.

  The front part F, the intermediate part M, and the rear part B occupy regions of 30%, 30%, and 40% of the length of the diaper cover 1 in the front-rear direction y, for example. In the diaper cover 1 shown in FIG. 1, the front part F, the intermediate part M, and the rear part B are divided at such a ratio.

  The diaper cover 1 has a right waist portion 2 and a left waist portion 3 that extend from the rear portion B in the width direction x. The right waist portion 2 and the left waist portion 3 are portions that are respectively applied to the wearer's right and left waists when the diaper cover 1 is worn. In FIG. 1, the right side of the drawing is positioned on the left side of the wearer when the diaper cover 1 is worn, and the left side of the drawing is positioned on the right side of the wearer when the diaper cover 1 is worn. Therefore, in FIG. 1, the diaper cover 1 is shown so that the inner surface of the diaper cover 1 can be seen. The diaper cover 1 is generally formed so that the middle part M is narrowest in the width direction x, and the left and right waist parts 2 and 3 correspond to the part located outside the outer edge of the narrowest part of the middle part M in the width direction x. To do. The right waist part 2 and the left waist part 3 may extend at least from the rear part B in the width direction x, and may further extend from the intermediate part M in the width direction x.

  When the diaper cover 1 is worn, the right waist portion 2, the left waist portion 3 and the rear portion B cover the waist of the wearer, and the right waist portion 2 and the left waist portion 3 are overlapped with each other on the wearer's stomach side. The The length from the end portion of the right waist portion 2 to the end portion of the left waist portion 3 (the length with respect to the width direction x) varies depending on the materials constituting the right waist portion 2, the left waist portion 3, and the rear portion B. 4.0 times or more of the length in the width direction x of the narrowest part of the intermediate part M is preferable, 4.5 times or more is more preferable, 7.0 times or less is preferable, and 6.5 times or less is more preferable. In addition, the magnification of the preferable length demonstrated here is the magnification of the length in the state which does not apply a load to the material which comprises a diaper cover from the outside. When the diaper cover 1 is worn, the right waist part 2 and the left waist part 3 are overlapped with each other on the wearer's belly side, and the length of the part where the right waist part 2 and the left waist part 3 are overlapped is determined by the wearer's length. It is preferable to wear so as to be about 20% to 60% of the circumference of the waist.

  A first fastener 4 is provided in each of the right waist portion 2 and the left waist portion 3. Hereinafter, “4R” may be used as a symbol representing the first fastener provided in the right waist portion, and “4L” may be used as a symbol representing the first fastener provided in the left waist portion. When wearing the diaper cover 1, the right waist portion 2 is joined to the left waist portion 3 or the rear portion B by the first fastener 4R, and the left waist portion 3 is joined to the right waist portion 2 or the rear portion by the first fastener 4L. Join to B. As a result, the left and right waist portions 2, 3 are fixed around the wearer's waist.

  The first fastener 4R of the right waist part 2 is preferably provided so as to be able to be joined to the outer surface of the left waist part 3 or the outer surface of the rear part B. The first fastener 4L of the left waist part 3 is provided with the right waist part 2 It is preferable to be provided so as to be able to be joined to the outer surface of the rear portion or the outer surface of the rear portion B. For example, the first fasteners may be provided on the inner surfaces of the left and right waist portions 2 and 3, or may be provided so as to extend from the ends of the left and right waist portions 2 and 3 in the width direction x. From the viewpoint of improving the handleability of the left and right waist portions 2 and 3, the first fastener is preferably provided on the inner surface of the right waist portion 2 and the inner surface of the left waist portion 3 as shown in FIG. 1.

  When the 1st fastener 4 is provided in the inner surface of the right waist part 2, and the inner surface of the left waist part 3, the 1st fastener 4 is less than 100 mm from the edge part of the width direction x of the right-and-left waist parts 2 and 3 (more It is preferably within 80 mm, more preferably within 50 mm. When the first fastener 4 is provided in this way, the first fastener 4 is joined to the left and right waist portions 2 and 3 or the rear portion B while grasping the ends of the left and right waist portions 2 and 3 in the width direction x. The diaper cover 1 can be easily worn. Moreover, since it becomes easy to grasp the edge part of the width direction x of the left and right waist parts 2 and 3 and to pull the left and right waist parts 2 and 3 to a wearer's left and right direction, when wearing the diaper cover 1, a diaper cover It becomes easy to improve the fit of the wearer's 1 waist.

  As the first fastener, a hook member or a loop member of a hook / loop fastener, an adhesive (for example, an adhesive tape, an adhesive layer), a hook (for example, a metal hook or a plastic hook) may be used. . When hook fasteners (hook members of hook and loop fasteners) are used as the first fastener, loop members of hook and loop fasteners are provided in the left and right waist portions and / or the rear portion, and the left and right waist portions and / or the rear portion are provided. It is preferable to use a material that functions as a loop member (for example, a nonwoven fabric, a woven fabric, a knitted fabric, or the like). When using an adhesive as a 1st fastener, it is preferable to provide a plastic film in a left-right waist part and / or a back part, or to comprise a left-right waist part and / or a back part with a plastic film. When using a hook as a 1st fastener, it is preferable to provide a loop-shaped member in a right-and-left waist part and / or a rear part.

  As the first fastener, it is preferable to use a hook fastener. As the hook 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. When a hook fastener is used as the first fastener, the first fastener is preferably provided on the inner surface of the right waist portion and the inner surface of the left waist portion.

  Although the shape of a 1st fastener, ie, the shape of the area | region in which the 1st fastener of the right-and-left waist parts 2 and 3 is provided, it is preferable that it is a shape long in the front-back direction y. That the 1st fastener is a shape long in the front-back direction y means that the length of the front-back direction y of a 1st fastener is longer than the length of the width direction x. The 1st fastener does not need to be provided in parallel with the front-back direction y, and may be provided diagonally with respect to the front-back direction y. If the first fastener has a shape that is long in the front-rear direction y, the left and right waist portions 2 and 3 are widely clamped, and the left and right waist portions 2 and 3 are easily fixed stably around the wearer's waist. Examples of the shape of the first fastener include a straight line, a rectangle, an ellipse, a rounded rectangle, an indeterminate shape, and the like, and a substantially linear shape having a predetermined width is preferable.

  A plurality of first fasteners may be provided in each of the right waist portion and the left waist portion. By providing the first fasteners in this way, it becomes difficult for all the joints of the first fasteners to come off at once, and the left and right waist portions are easily fixed stably around the wearer's waist.

  2A to 2E, the right waist part 2 of the diaper cover 1 of FIG. 1 is taken as an example, and an installation example in the case where a plurality of first fasteners 4 are provided is shown. In FIG. 2A, a plurality of first fasteners 4 having a shape that is long in the front-rear direction y are provided side by side in the width direction x. As shown in FIG.2 (b), each 1st fastener 4 has a shape long in the width direction x, These may be provided with two or more along with the front-back direction y. As shown in FIGS. 2C and 2D, a plurality of the first fasteners 4 may be provided along the edge of the end portion of the right waist portion 2. Moreover, as shown in FIG.2 (e), the 1st fastener 4 of a predetermined shape may be provided in the end part of the right waist part 2 along with the length and breadth.

  The first fastener may also be provided to form an arc along the edge of the end of the right waist or the end of the left waist, as shown in FIG. 2 (f). By providing the first fastener in such a shape, it is difficult for the first fastener provided at the ends of the left and right waist portions to inadvertently join to other members or hit the wearer's skin. This improves the handling of the left and right waist parts.

  The diaper cover has an opening through which the left waist part can be inserted inward in the width direction from the first fastener in the right waist part, and / or right inward in the width direction from the first fastener in the left waist part. An opening through which the waist portion can be inserted is provided. In FIG. 1, the diaper cover 1 is provided with an opening 5 </ b> L through which the right waist 2 can be inserted inward in the width direction x from the first fastener 4 </ b> L of the left waist 3. Although not shown in FIG. 1, the diaper cover 1 has an opening 5R (not shown) through which the left waist portion 3 can be inserted inward in the width direction x from the first fastener 4R of the right waist portion 2. May be provided. One or both of the opening 5R and the opening 5L may be referred to as the opening 5.

  The position of the opening 5R is not particularly limited as long as the opening 5R is provided inward in the width direction x from the first fastener 4R of the right waist portion 2. The opening 5R may be provided in the right waist portion 2 or may be provided in the rear portion B. The opening 5R is provided on the right side of the center line of the diaper cover 1 in the width direction x. It is preferable that only one opening 5R is provided in the right waist part 2 or the rear part B. Moreover, it is preferable that the opening 5R is provided in the right waist portion 2 in order to facilitate the insertion of the left waist portion 3.

  The opening 5R is formed so that the left waist portion 3 can be inserted therethrough. If the opening 5R is provided in the diaper cover 1, the wearer wears the diaper cover 1 while pulling both the right waist part 2 and the left waist part 3 by inserting the left waist part 3 into the opening 5R. can do.

  As long as the opening 5L is provided inward in the width direction x from the first fastener 4L of the left waist portion 3, the position thereof is not particularly limited. The opening 5L may be provided in the left waist part 3 or may be provided in the rear part B. The opening 5L is provided on the left side of the center line in the width direction x of the diaper cover 1. It is preferable that only one opening 5L is provided in the left waist part 3 or the rear part B. Moreover, it is preferable that the opening 5L is provided in the left waist part 3 from the point which makes the right waist part 3 easy to insert.

  The opening 5L is formed so that the right waist portion 2 can be inserted therethrough. If the opening 5L is provided in the diaper cover 1, the wearer wears the diaper cover 1 while pulling both the right waist part 2 and the left waist part 3 by inserting the right waist part 2 into the opening 5L. can do.

  Therefore, the diaper cover 1 can be worn while pulling both the end portion of the right waist portion 2 and the end portion of the left waist portion 3 by providing the opening 5R and / or the opening 5L. . In this case, the first fastener 4R of the right waist portion 2 is joined to the outer surface of the left waist portion 3 or the outer surface of the rear portion B, and the first fastener 4L of the left waist portion 3 is joined to the outer surface of the right waist portion 2 or It can be joined to the outer surface of the rear part B. Therefore, when the wearer wears the diaper cover 1, the wearer can easily improve the fit around the waist of the diaper cover 1.

  The diaper cover 1 only needs to be provided with at least one of the opening 5R and the opening 5L, and may be provided with both the opening 5R and the opening 5L. When both the opening 5R and the opening 5L are provided in the diaper cover 1, the wearer can wear the diaper cover 1 by inserting the right waist portion 2 or the left waist portion 3 into either the opening 5R or the opening 5L. The cover 1 can be easily worn.

  The shape of the opening is not particularly limited as long as the right waist portion or the left waist portion can be inserted, but is preferably a shape that is long in the front-rear direction y. The opening having a shape that is long in the front-rear direction y means that the length of the opening in the front-rear direction y is longer than the length in the width direction x. If the opening has a shape that is long in the front-rear direction y, the right waist portion or the left waist portion can be easily inserted into the opening. Examples of the shape of the opening include straight lines, rectangles, ellipses, rectangles with rounded corners, and irregular shapes. For example, when the opening has a linear shape, a rectangle, or an ellipse, the opening need not be provided in parallel with the front-rear direction y, and may be provided obliquely with respect to the front-rear direction y. The opening is preferably a substantially linear slit that is long in the front-rear direction y. By providing the opening in this way, the right waist portion, the left waist portion, and the like are reduced in the narrow portion around the opening, the strength reduction is suppressed low, and the handling property of the diaper cover is improved.

  The right waist portion 2 and the left waist portion 3 are preferably extendable. In detail, it is preferable that the right waist part 2 and the left waist part 3 can be expanded-contracted in the width direction x. The right waist portion 2 and the left waist portion 3 may be at least partially stretchable, and it is preferable that the inside of the right and left waist portions 2 and 3 in the width direction x can be stretched more than the first fasteners 4. . When the openings 5 are provided in the left and right waist portions 2 and 3, it is preferable that the inner side in the width direction x can be expanded and contracted from the openings 5 of the left and right waist portions 2 and 3. If the right waist part 2 and the left waist part 3 can be expanded and contracted, the wearer of the diaper cover 1 can be secured by fixing the left and right waist parts 2 and 3 around the waist of the wearer while extending the left and right waist parts 2 and 3. It becomes easy to improve the fit around the waist. In addition to the left and right waist portions 2 and 3, the rear portion B is preferably extendable.

  A reinforcing material 6 is preferably provided around the opening 5. More preferably, the reinforcing material 6 is provided on the entire periphery of the opening 5. By providing the reinforcing material 6 around the opening 5, the diaper cover 1 is less likely to break from the opening 5 when the left and right waist portions 2, 3 are pulled in the width direction x. Further, it becomes easy to insert the right waist portion 2 or the left waist portion 3 into the opening 5.

  The reinforcing member 6 is provided so that the edge closest to the opening 5 is located within 10 mm (more preferably within 5 mm) from the periphery of the opening 5 in order to make the diaper cover 1 difficult to break from the opening 5. It is preferable. In addition, the reinforcing material 6 is farthest from the opening 5 because the rupture suppressing effect does not increase even if the reinforcing material 6 is provided in a wide area, and the handleability of the left and right waist portions 2 and 3 may be deteriorated. It is preferable that the edge is provided so as to be located within 50 mm (more preferably within 30 mm) from the periphery of the opening 5.

  As the reinforcing member 6, the same or different material as that of the left and right waist portions 2 and 3 or the rear portion B where the opening 5 is provided may be attached around the opening 5. Moreover, you may increase the fabric weight of the material which comprises the diaper cover 1 only around the opening part 5. FIG. Or you may comprise the part corresponded to the reinforcing material 6 with a material stronger than the circumference | surroundings. From the standpoint of manufacturability of the diaper cover 1, the reinforcing member 6 is preferably attached to the periphery of the opening 5 with the same or different material as the left and right waist portions 2, 3 or the rear portion B.

  The shapes of the right waist portion 2 and the left waist portion 3 are not particularly limited, but when the right waist portion 2 is provided with an opening 5R, the width of the left waist portion 3 is narrowed toward the end portion. Preferably, when the opening 5L is provided in the left waist part 3, the width of the right waist part 2 is preferably narrower toward the end part. That is, an opening is provided in the right waist portion, and the width of the left waist portion is narrowed toward an end thereof, and / or an opening is provided in the left waist portion, and the right waist portion It is preferable that the width | variety becomes narrow toward the edge part. Thus, if the right waist part and the left waist part are formed, it becomes easy to insert the right waist part or the left waist part into the opening. Moreover, a wearer's buttocks and waist circumference are widely covered by a right waist part and a left waist part, and the wearing feeling of a diaper cover becomes easy to improve. Note that the width of the right waist portion and the width of the left waist portion mean the length in the front-rear direction y.

  The diaper cover 1 is preferably provided with a right flap portion 7 and a left flap portion 8 extending in the width direction x at the front portion F. The right flap portion 7 and the left flap portion 8 are portions that are respectively applied to the right side and the left side of the wearer's abdomen when the diaper cover 1 is worn. The left and right flap portions 7 and 8 correspond to a portion located outward in the width direction x from the outer edge of the narrowest portion of the intermediate portion M. The left and right flap portions 7 and 8 need only extend in the width direction x from at least the front portion F, and may further extend in the width direction x from the intermediate portion M.

  The length from the end portion of the right flap portion 7 to the end portion of the left flap portion 8 (the length with respect to the width direction x) varies depending on the materials constituting the right flap portion 7, the left flap portion 8, and the front portion F. , Preferably 1.5 times or more of the width direction x of the narrowest part of the intermediate part M, more preferably 2.0 times or more, preferably 3.5 times or less, more preferably 3.0 times or less. preferable. In addition, the magnification of the preferable length demonstrated here is the magnification of the length in the state which does not apply a load to the material which comprises a diaper cover from the outside.

  It is preferable that a second fastener 9 is provided on each of the inner surface of the right flap portion 7 and the inner surface of the left flap portion 8. Hereinafter, “9R” may be used as a symbol representing the second fastener provided in the right flap portion, and “9L” may be used as a symbol representing the second fastener provided in the left flap portion. When wearing the diaper cover 1, the left and right flap portions 7, 8 are joined to the left and right waist portions 2, 3 attached around the waist of the wearer by the second fastener 9. As a result, the left and right flap portions 7 and 8 are fixed to the wearer's abdomen. The diaper cover 1 is provided with left and right flap portions 7 and 8, and further provided with second fasteners 9 on the inner surfaces of the left and right flap portions 7 and 8, respectively, thereby improving the adhesion around the wearer's legs, The fit of the diaper cover 1 is improved. Specifically, the outer edges of the right waist portion 2 and the right side of the middle portion M and the right flap portion 7 enhance the fit around the heel portion of the wearer's right leg, and the left waist portion 3 and the middle portion. Due to the respective outer edges of the left side of M and the left flap 8, the fit of the wearer's left leg is improved.

  It is preferable that the 2nd fastener 9 is provided in the area | region within 100 mm (more preferably within 80 mm, more preferably within 50 mm) from the edge part of the width direction x of the left-right flap parts 7 and 8. FIG. If the second fastener 9 is provided in this manner, the second fastener 9 can be joined to the left and right waist portions 2 and 3 while grasping the ends of the left and right flap portions 7 and 8 in the width direction x, and the diaper The cover 1 can be easily worn. As the second fastener, a member usable for the first fastener can be used, and a hook fastener is preferably used. The member provided in the left and right waist portions 2 and 3 to be joined to the second fastener, or the material constituting the left and right waist portions 2 and 3 may be the member or material used for the joint of the first fastener. it can.

  The shape of the second fastener, that is, the shape of the region of the left and right flap portions 7 and 8 where the second fastener is provided is not particularly limited, but is preferably a shape that is long in the front-rear direction y. That the 2nd fastener is a shape long in the front-back direction y means that the length of the front-back direction y of a 2nd fastener is longer than the length of the width direction x. The 2nd fastener does not need to be provided in parallel with the front-back direction y, and may be provided diagonally with respect to the front-back direction y. If the second fastener has a shape that is long in the front-rear direction y, the left and right flap portions 7 and 8 are widely clamped, and the left and right flap portions 7 and 8 are easily fixed stably to the wearer's abdomen. Examples of the shape of the second fastener include a straight line, a rectangle, an ellipse, a rounded rectangle, an indefinite shape, and the like, and a substantially linear shape having a predetermined width is preferable.

  As shown in FIG. 1, the second fastener 9 has a substantially linear shape having a predetermined width, and the second fastener 9 has a substantially linear shape in front of the front-rear direction y of the diaper cover 1 and in the width direction x. It is preferable to be provided so as to face inward. That is, it is preferable that the second fastener 9 has a substantially linear shape so that the front side in the front-rear direction y is positioned inward in the width direction x. By providing the second fastener 9 in this manner, when the wearer pulls the left and right flap portions 7 and 8 in the direction perpendicular to the direction in which the substantially linear shape of the second fastener 9 extends, the wearer While expanding the parts 7 and 8 in the left and right direction of the wearer, the left and right flap parts 7 and 8 can be easily pulled upward and the fit of the diaper cover 1 around the wearer's legs can be easily improved.

  A plurality of second fasteners may be provided in each of the right flap portion and the left flap portion. Thus, by providing the 2nd fastener, it becomes difficult to remove | release all joining of a 2nd fastener at once, and it becomes easy to fix a right-and-left flap part to a wearer's abdomen stably. An embodiment in the case where a plurality of second fasteners are provided in each of the right flap portion and the left flap portion is the same as the installation example of the first fastener shown in FIGS. Moreover, the 2nd fastener may be provided so that an arc may be drawn along the edge of the edge part of a right flap part, or the edge part of a left flap part, as FIG.2 (f) shows.

  In order to further improve the fit around the leg of the wearer of the diaper cover 1, it is preferable that the right flap portion 7, the left flap portion 8, and the intermediate portion M can be expanded and contracted. The outer edges of these portions of the diaper cover 1 are applied around the wearer's throat when the diaper cover 1 is worn. Therefore, if these portions of the diaper cover 1 can be expanded and contracted, the left and right flap portions 7 and 8 are extended in the left and right direction of the wearer while being pulled upward, so that the left and right flap portions 7 and 8 are worn by the wearer. By fixing to the abdomen, it becomes easier to improve the fit around the wearer's throat. In addition to the left and right flap portions 7 and 8 and the intermediate portion M, the front portion F is preferably extendable.

  The material which comprises a diaper cover is not specifically limited. As a material constituting the diaper cover, a nonwoven fabric, a woven fabric, a knitted fabric, a plastic film, and a laminate thereof can be used. When a cloth material such as nonwoven fabric, woven fabric, or knitted fabric is used as the material constituting the diaper cover, the fiber constituting the cloth material may be, for example, synthetic fibers such as polypropylene, polyethylene, polyester, polyamide, and polyurethane, pulp, silk Natural fibers such as these may be used. When a plastic film is used as a material constituting the diaper cover, for example, a synthetic resin such as polypropylene, polyethylene, polyester, polyamide, or polyurethane may be used. The diaper cover may be liquid permeable or liquid impermeable.

  When the diaper cover has a stretchable part (hereinafter, may be referred to as “stretchable part”), the stretchable part is almost at least 1.1 times (more preferably 1.2 times) even when stretched. It is preferable to return to the original length. As described above, the stretchable part is preferably provided, for example, in the right waist part, the left waist part, the right flap part, the left flap part, the intermediate part, or the like.

  The stretchable part may be formed from a stretchable material. Examples of the elastic material include natural rubber; synthetic rubber such as styrene-butadiene copolymer and polyisobutylene; synthetic resin such as polyurethane, polyether / polyester, polybutylene terephthalate, and polytrimethylene terephthalate. A fiber including an elastic material may be used to form a non-woven fabric, a woven fabric, a knitted fabric, or the like and used for the elastic portion. Moreover, an elastic material may be formed in a film shape and used for the elastic part.

  The stretchable part may be formed from a non-stretchable material. In this case, fibers formed from a non-stretchable material may be formed into a woven fabric, a knitted fabric or the like, and the stretchability may be imparted to the woven fabric or the knitted fabric by a woven fabric or a knitted fabric.

  The stretchable part may be formed of a stretchable material and a non-stretchable material. In this case, a stretchable material such as an elastic member may be attached to a non-stretchable portion formed from a non-stretchable material (hereinafter sometimes referred to as “non-stretchable portion”). The stretchable material is preferably attached to the non-stretchable portion in the stretched state. In addition, using non-stretchable fibers and fibers formed from stretchable materials, or composite fibers formed from stretchable and nonstretchable materials, nonwoven fabrics, woven fabrics, knitted fabrics, etc. You may form and use it for an expansion-contraction part.

  The entire diaper cover excluding the first fastener, the second fastener, and the reinforcing material may be stretchable. In this case, it is preferable that the diaper cover is made of the same material except for the first fastener, the second fastener, and the reinforcing material from the viewpoint of ease of manufacture of the diaper cover.

  The diaper cover is preferably composed of a nonwoven fabric, a woven fabric, a knitted fabric, or the like from the viewpoint of ensuring air permeability and reducing stuffiness during wearing. More preferably, the entire diaper cover is made of a nonwoven fabric, a woven fabric, a knitted fabric or the like except for the first fastener, the second fastener, and the reinforcing material. In this case, as described above, hook fasteners are preferably used for the first fastener and the second fastener (when the second fastener is provided).

  An example of the wearing method of the diaper cover of this invention is demonstrated using FIG. In the diaper cover 1 shown in FIG. 3, the opening 5 is provided only in the left waist portion 3 and is not provided in the right waist portion 2. The diaper cover 1 shown in FIG. 3 can expand and contract the entire diaper cover 1 except for the first fastener 4, the second fastener 9, and the reinforcing member 6, and the first fastener 4 and the second fastener 9 can be joined. It is composed of various materials.

  The diaper cover 1 applies the right waist part 2 to the wearer's right waist and the left waist part 3 to the wearer's left waist while the rear part B is applied to the wearer's back side. Next, the right waist portion 2 is inserted into the opening 5L of the left waist portion 3, and the first fastener 4R of the right waist portion 2 is attached to the outer surface of the left waist portion 3 while pulling both the right waist portion 2 and the left waist portion 3. The first fastener 4L of the left waist portion 3 is joined to the outer surface of the right waist portion 2 (see FIGS. 3A and 3B). As a result, the left and right waist portions 2, 3 can be fixed around the wearer's waist. Next, the front part F and the left and right flap parts 7 and 8 are brought to the wearer's ventral side through the wearer's crotch, and the left and right flap parts 7 and 8 are expanded in the wearer's left and right direction while facing upwards of the wearer. The diaper cover 1 can be worn by pulling the left and right flap portions 7 and 8 to the left and right waist portions 2 and 3 (see FIGS. 3B and 3C).

  The present invention also provides a disposable diaper in which an absorbent core is provided at an intermediate portion of the diaper cover of the present invention. That is, the disposable diaper of the present invention has a front part and a rear part in the front-rear direction, an intermediate part positioned therebetween, a right waist part and a left waist part extending in the width direction from the rear part; Absorbent core is provided in each part; first fasteners are provided on each of the right and left waist parts; an opening through which the left waist part can be inserted inward in the width direction from the first fasteners on the right waist part And / or an opening through which the right waist portion can be inserted is provided inward in the width direction from the first fastener of the left waist portion.

  As a disposable diaper, for example, a front part, a rear part, an intermediate part located between them, an outer sheet having a right waist part and a left waist part extending in the width direction from the rear part, and a liquid-permeable sheet Examples include a top sheet, a liquid-impermeable back sheet, and an absorbent main body in which an absorbent core is disposed between them, and the absorbent main body is provided in an intermediate portion of the exterior sheet. The exterior sheet may be composed of a single sheet or may be a laminate of two or more sheets. Examples of the outer sheet include a laminate of an inner sheet and an outer sheet. In this case, the inner sheet is preferably hydrophilic or water repellent, and the outer sheet is preferably water repellent. The exterior sheet may have a stretchable part and a non-stretchable part.

  The disposable diaper also has a laminated body in which a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent core are disposed therebetween, and the laminated body includes a front part, a rear part, and these parts. An intermediate portion located between the right waist portion and the left waist portion extending in the width direction from the rear portion may be formed, and the absorbent core may be provided in the intermediate portion. The laminate may have a stretchable part and a non-stretchable part. Alternatively, a laminate in which a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent core are disposed therebetween form a non-stretchable portion of the disposable diaper, and the remaining portion is a stretchable portion As another example, the top sheet and the back sheet may be formed of a different material.

  The absorbent core is not particularly limited as long as it can absorb excrement such as urine. As the absorbent core, for example, a molded body in which the absorbent material is molded into a predetermined shape is used, or the absorbent material is covered with a covering sheet such as a paper sheet (for example, tissue paper) or a liquid-permeable nonwoven sheet. Can be used. Examples of the absorbent material contained in the absorbent core include hydrophilic fibers such as pulverized pulp fibers and cellulose fibers, and water-absorbing resins such as polyacrylic acid-based, cellulose-based, and starch / acrylonitrile-based materials. The absorbent material preferably contains at least a water absorbent resin. Moreover, you may use what mixed or disperse | distributed the water absorbing resin to the aggregate | assembly of a hydrophilic fiber as an absorptive material. The shape of the absorbent core is not particularly limited. Examples of the shape of the absorbent core include a rectangular shape, an hourglass shape, a gourd shape, and a battledore shape.

  A top sheet and a back sheet are comprised from the laminated body of a nonwoven fabric, a woven fabric, a knitted fabric, a plastic film, a plastic film, and a nonwoven fabric etc., for example. Examples of the laminate include those in which a nonwoven fabric and a plastic film are stacked one by one, and those in which a plastic film is sandwiched between nonwoven fabrics.

  Examples of the top sheet include a nonwoven fabric formed from hydrophilic fibers such as cellulose, rayon, and cotton; and a nonwoven fabric formed from hydrophobic fibers such as polypropylene, polyethylene, polyester, polyamide, and nylon. A fiber whose surface is hydrophilized with a surfactant can be used. As the top sheet, a woven fabric, a knitted fabric, or a plastic film in which holes are formed may be used.

  As the back sheet, a nonwoven fabric formed from hydrophobic fibers such as polypropylene, polyethylene, polyester, polyamide, 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.

  When the exterior sheet is composed of a single sheet, it is preferable to use a material that can be used for the back sheet. When the exterior sheet is composed of an inner sheet and an outer sheet, the inner sheet may be made of a material that can be used for the top sheet or the back sheet, and the outer sheet may be made of a material that can be used for the back sheet.

  When a nonwoven fabric is used as the material of each sheet described above, the nonwoven fabric is preferably manufactured by a spunbond method, an air-through method, a point bond method, a melt blow method, an airlaid method, or a combination of these methods. Moreover, you may use the nonwoven fabric manufactured by SMS method which combined the spun bond method and the melt blow method.

  The disposable diaper is preferably provided with rising flaps along both side edges of the absorbent core. For example, the rising flaps may be provided on the upper surface of the absorbent core along both side edges of the absorbent core, or may be provided on both outer sides in the width direction of the absorbent core. By providing the rising flap, side leakage of excrement such as urine can be prevented. The rising flaps may be formed by raising the inner ends of the side sheets provided on both sides of the top sheet in the width direction. The rising flap and the side sheet are preferably water-repellent.

  The explanation about the left and right waist parts, the right and left flap parts, the first fastener, the second fastener, and the opening of the disposable diaper is the same as the explanation of the diaper cover.

  An example of the disposable diaper of this invention is demonstrated with reference to FIG. 4, FIG. FIG. 4 shows an example of the disposable diaper of the present invention, and FIG. 5 shows an AA cross-sectional view of FIG. In addition, the disposable diaper of this invention is not limited to the embodiment shown by drawing. In addition, in the following description, the description which overlaps with description of the diaper cover which concerns on FIG. 1 is abbreviate | omitted. Further, “diaper cover” and “diaper cover 1” in the description relating to the above diaper cover shall be read as “disposable diaper” and “disposable diaper 11”, respectively.

  The disposable diaper 11 has a laminate in which an absorbent core 14 is disposed between a liquid-permeable top sheet 12 and a liquid-impermeable back sheet 13. The top sheet 12 has a rectangular shape in which the length in the width direction x is shorter than the length in the width direction x of the intermediate portion M, and the length in the front-rear direction y is substantially the same as the length in the front-rear direction y of the disposable diaper 11. . The back seat 13 includes a front part F and a rear part B in the front-rear direction y, an intermediate part M positioned therebetween, left and right waist parts 2 and 3 extending in the width direction x from the rear part B, and a front part F. Left and right flap portions 7 and 8 extending in the width direction x. Side sheets 15 are joined to both ends in the width direction x of the top sheet 12, and the side sheets 15 form left and right waist portions 2 and 3 and left and right flap portions 7 and 8.

  The top sheet 12 is disposed so as to face the wearer's skin, and allows excretion such as urine to pass through. Excrement that has permeated through the top sheet 12 is accommodated by the absorbent core 14. The back sheet 13 prevents excrement from leaking to the outside and prevents clothes and the like from becoming dirty.

  The side seat 15 is provided with a standing elastic member 16 at the inner end in the width direction x. When the disposable diaper 11 is worn, the inner portion of the side sheet 15 rises above the top sheet 12, that is, toward the wearer's skin due to the contraction force of the standing elastic member 16. Thereby, a rising flap is formed and leakage of excrement such as urine in the lateral direction x is prevented.

  A waist elastic member 17 extending in the width direction x is disposed on the left and right waist portions 2 and 3. The portions of the left and right waist portions 2 and 3 where the waist elastic members 17 are disposed function as expansion and contraction portions.

  In the intermediate part M, a leg elastic member 18 extending in the longitudinal direction y is arranged. The leg elastic member 18 is provided along the edge of the disposable diaper 11 in the intermediate portion M. The left and right flap portions 7 and 8 are provided with flap elastic members 19 extending substantially in the width direction x. The leg elastic member 18 and the flap elastic member 19 make it easier to improve the fit around the wearer's leg.

  The elastic member 17 for waist, the elastic member 18 for legs, and the elastic member 19 for flap are each arrange | positioned between the side seat | sheet 15 and the back seat | sheet 13, and are being fixed to the side seat | sheet 15 and the back seat | sheet 13 in the expansion | extension state. . As the elastic member, an elastic stretchable material that is usually used for disposable diapers such as polyurethane yarns, polyurethane films, and natural rubber can be used. Each elastic member is preferably fixed in a stretched state with a hot melt adhesive. For example, a polyurethane yarn having a fineness of 100 to 2,500 dtex is stretched and arranged at a magnification of 1.1 to 5.0 times and fixed. The bonding means is preferably a rubber-based hot melt adhesive.

1: Diaper cover 2: Right waist part 3: Left waist part 4: First fastener 5: Opening 6: Reinforcement material 7: Right flap part 8: Left flap part 9: Second fastener 11: Disposable diaper

Claims (13)

A diaper cover having a front part and a rear part in the front-rear direction, an intermediate part located between them, a right waist part and a left waist part extending in the width direction from the rear part,
A first fastener is provided on each of the right waist and the left waist;
An opening through which the left waist portion can be inserted in the width direction inward from the first fastener of the right waist portion, and / or a width direction inward of the first fastener of the left waist portion, A diaper cover characterized by an opening through which the right waist can be inserted.   The diaper cover according to claim 1, wherein a reinforcing material is provided around the opening.   The diaper cover according to claim 1, wherein the opening has a shape that is long in the front-rear direction.   An opening is provided in the right waist portion, and a width of the left waist portion is narrowed toward an end thereof, and / or an opening is provided in the left waist portion, and the right waist portion The diaper cover according to any one of claims 1 to 3, wherein a width of the waist portion is narrowed toward an end portion thereof.   The diaper cover according to any one of claims 1 to 4, wherein the right waist portion and the left waist portion are extendable.   The diaper cover according to any one of claims 1 to 5, wherein the first fastener is provided on an inner surface of the right waist portion and an inner surface of the left waist portion.   The diaper cover according to claim 6, wherein a plurality of the first fasteners are provided in each of the right waist portion and the left waist portion. The front portion is provided with a right flap portion and a left flap portion extending in the width direction,
The diaper cover as described in any one of Claims 1-7 by which the 2nd fastener is provided in the inner surface of the said right flap part, and the inner surface of the said left flap part, respectively. The second fastener has a substantially linear shape having a predetermined width,
The diaper cover according to claim 8, wherein the second fastener is provided so that a substantially linear shape is directed forward in the front-rear direction and inward in the width direction of the diaper cover.   The diaper cover according to claim 8 or 9, wherein the right flap portion, the left flap portion, and the intermediate portion are extendable.   The said 2nd fastener is a diaper cover as described in any one of Claims 8-10 currently provided with two or more by the said right flap part and the said left flap part, respectively.   The diaper cover according to claim 1, wherein the opening is a substantially linear slit that is long in the front-rear direction.   The disposable diaper characterized by the absorptive core being provided in the intermediate part of the diaper cover as described in any one of Claims 1-12.

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