JP2011240017A - Pants type disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pants type disposable diaper which can be easily worn without producing a gap between the crotch area of the diaper and the skin face of the wearer by moderately suppressing elongation of the exterior material when wearing.SOLUTION: An exterior material 2 of the pants type disposable diaper 1 includes a front belly part 21, a back belly part 22, and a crotch part 23. Both side edge parts 21a in the lateral direction X of the front belly part 21 and both side edge parts 22a in the lateral direction X of the back belly part are joined. An interior material 3 includes an absorptive core 31 to absorb water and is given to the skin face side of the exterior material 2. A reinforcing tape 4 has a thin and almost band-like shape and stretchability in the longitudinal direction Y lower than that of a base material sheet constituting the exterior material 2, and is given to the exterior material 2 almost along the longitudinal direction Y or an oblique direction tilting against the longitudinal direction Y.

Description

  The present invention relates to a pants-type disposable diaper.

  In recent years, exterior materials used on the outermost side of pants-type disposable diapers have been improved to be thinner and softer in order to achieve a feeling of wearing close to ordinary underwear. However, as the exterior material becomes softer, troubles such as difficulty in wearing the diaper may occur. For example, when the diaper is pulled up while holding its upper end, the upper end of the diaper is pulled up to a predetermined position around the waist of the wearer due to the longitudinal extension of the exterior material. The crotch region may not be pulled up sufficiently, and a gap may remain between the crotch region of the diaper and the skin surface of the wearer. In addition, an excessive force is applied to the exterior material to raise the crotch region of the diaper, and the exterior material may be damaged.

  In addition, there exists a thing of patent document 1 as an underpants type disposable diaper provided with the reinforcing material provided along the horizontal direction in the part around the waist. However, in such a configuration in which the reinforcing material is applied along the lateral direction, it is not possible to effectively suppress the excessive elongation in the longitudinal direction of the exterior material at the time of mounting.

JP 2009-195647 A

  Accordingly, the problem to be solved by the present invention is that without moderately generating a gap between the crotch region of the diaper and the skin surface of the wearer by appropriately suppressing the longitudinal extension of the exterior material at the time of wearing. It is providing the underpants type disposable diaper which can be attached to.

  In order to solve the above problems, the invention of claim 1 is a pants-type disposable diaper, comprising a front abdomen, a back part, and a crotch part provided between the front part and the back part. A skin material of the exterior material, including an exterior material in which edges on both sides in the lateral direction of the front abdomen and edges on both sides in the lateral direction of the back portion are joined, and an absorbent core that absorbs moisture The interior material provided on the side, and has a thin and substantially band-like form, and has a lower elasticity than the base sheet constituting the exterior material, and is substantially longitudinal or And at least one reinforcing tape applied along an oblique direction inclined with respect to the longitudinal direction.

  Moreover, in invention of Claim 2, in the underpants type disposable diaper which concerns on invention of Claim 1, the said reinforcement tape is at least any one of the at least one part of the said front part of the said exterior material, and the said back part. On the other hand, it is provided substantially along the longitudinal direction or the oblique direction.

  Moreover, in invention of Claim 3, in the underpants-type disposable diaper which concerns on invention of Claim 2, the said reinforcement tape follows the said longitudinal direction or the said diagonal direction over substantially the full length of the said longitudinal direction of the said exterior material. Are granted.

  Moreover, in invention of Claim 4, in the underpants type disposable diaper which concerns on invention of Claim 2, the said reinforcement tape passed the said crotch part from the said front abdominal part except the edge part of the said vertical direction both sides of the said exterior material. It is given to the part hung on the back part substantially along the longitudinal direction or the oblique direction.

  Moreover, in invention of Claim 5, in the underpants type disposable diaper which concerns on invention of Claim 2, the said reinforcement tape is the part applied from the said front part of the said exterior material to the front side edge part of the crotch area of the said crotch part, and The portion of the exterior material that extends from the back portion to the rear end portion of the crotch region of the crotch portion is provided substantially along the longitudinal direction or the oblique direction.

  Moreover, in invention of Claim 6, in the underpants type disposable diaper which concerns on invention of any one of Claim 1 thru | or 5, the said reinforcement tape is substantially the said vertical direction or the said diagonal direction in the right-and-left both sides of the said exterior material. Are granted along.

  Moreover, in invention of Claim 7, in the underpants-type disposable diaper which concerns on any invention of Claim 1 thru | or 6, the said reinforcement tape is a color different from the color of the said base material sheet which comprises the said exterior material. It is.

  Moreover, in invention of Claim 8, it is a pants type disposable diaper, Comprising: It was comprised by the skin surface side base material sheet and outer surface side base material sheet which were piled up, a front part, a back part, the said front part, and the said A crotch portion provided between the back portion and the exterior material in which the lateral edge portions of the front abdomen and the lateral edge portions of the back portion are joined, and moisture The edge portion on both sides in the lateral direction in at least one of the interior material provided on the skin surface side of the exterior material and the front abdomen and the back portion of the exterior material, having an absorbent core to absorb The inner surface of the lateral direction extends in a substantially vertical direction or an oblique direction inclined with respect to the longitudinal direction in a substantially line shape or a substantially strip shape, and the skin surface side base sheet and the outer surface side base And at least one base sheet joining portion that joins the material sheets.

  Moreover, in invention of Claim 9, in the underpants type disposable diaper which concerns on invention of Claim 8, the said base material sheet junction part is the said skin surface side base material sheet and the said outer surface side base material sheet with a hot-melt-adhesive. Join.

  According to the pants-type disposable diaper according to the invention of claim 1, a reinforcing tape having a thin and substantially band-like form and having a lower stretchability in the longitudinal direction than the base material sheet constituting the exterior material, It is given to the exterior material along a substantially vertical direction or an oblique direction inclined with respect to the vertical direction. Therefore, when the diaper is pulled up while holding its upper end, the longitudinal extension of the exterior material is moderately suppressed by the reinforcing tape, and the entire upper part from the upper end of the exterior material to the crotch region is pulled up together. Can do. For this reason, when the diaper is worn, the crotch region of the diaper is brought into close contact with the skin surface of the wearer, and a gap can be prevented from being generated between the crotch region and the skin surface. In addition, it is possible to prevent the exterior material from being damaged by applying an excessive force to the exterior material to raise the crotch region of the diaper. As a result, the diaper can be easily attached.

  Further, since the exterior material is reinforced by the reinforcing tape, the base material sheet constituting the exterior material can be made thinner, thereby reducing the material cost.

  According to the underpants-type disposable diaper according to the invention of claim 2, with respect to either one or both of the front and back portions of the exterior material that is liable to be excessively stretched or damaged in the vertical direction at the time of wearing, the reinforcing tape is used. A moderate elongation suppression and reinforcement effect in the longitudinal direction can be obtained.

  According to the disposable diaper which concerns on invention of Claim 3, suppression of the moderate expansion | extension with respect to the vertical direction by a reinforcement tape and the reinforcement effect are acquired over the substantially full length of the vertical direction of an exterior material.

  In addition, since the reinforcing tape is applied not only to the front abdomen and the back part of the exterior material, but also to the crotch part, the crotch region of the diaper can be surely raised by the pulling up at the time of wearing, and can be brought into close contact with the skin surface of the wearer. it can.

  According to the pants-type disposable diaper according to the invention of claim 4, with respect to the portion from the front abdomen excluding the ends on both sides in the longitudinal direction of the exterior material to the back portion that has passed through the crotch, it is moderate in the longitudinal direction by the reinforcing tape. Suppressing and reinforcing effects can be obtained.

  In addition, since the reinforcing tape is applied not only to the front abdomen and the back part of the exterior material, but also to the crotch part, the crotch region of the diaper can be surely raised by the pulling up at the time of wearing, and can be brought into close contact with the skin surface of the wearer. it can.

  In addition, the end portions on both sides in the vertical direction of the exterior material have little influence on the insufficient pulling of the crotch region of the diaper. For this reason, by omitting the application of the reinforcing tape to the ends on both sides in the longitudinal direction of the exterior material, the material cost can be suppressed without causing a decrease in performance such as operability when the diaper is mounted.

  According to the pants-type disposable diaper according to the invention of claim 5, a portion of the exterior material from the front abdomen to the front end of the crotch crotch region, and the back of the exterior material from the crotch crotch region About the part hung on the rear side end portion, moderate reinforcement of the longitudinal direction by the reinforcing tape and the effect of reinforcement can be obtained.

  Moreover, about the inseam area | region of the crotch part of exterior material, the expansion | extension to the vertical direction at the time of mounting | wearing of a diaper is comparatively small. For this reason, by omitting the application of the reinforcing tape to the crotch region of the crotch portion of the exterior material, the material cost can be suppressed without causing a decrease in performance such as operability when the diaper is mounted.

  According to the pants-type disposable diaper according to the sixth aspect of the invention, it is possible to obtain an effect of moderate suppression and reinforcement with respect to the longitudinal direction by the reinforcing tape on both the left and right sides of the exterior material.

  According to the pants-type disposable diaper according to the invention of claim 7, since the reinforcing tape is a color different from the color of the base material sheet constituting the exterior material, the portion to which the reinforcement tape of the exterior material is applied is provided. The wearer can be easily recognized. For this reason, the wearer can be effectively urged to hold the portion to which the reinforcing tape of the exterior material is applied at the time of wearing. As a result, the diaper can be mounted more smoothly and damage to the exterior material can be suppressed.

  According to the pants-type disposable diaper according to the invention described in claim 8, by at least one base sheet joining portion extending in a substantially line shape or a substantially band shape along a substantially vertical direction or an oblique direction inclined with respect to the vertical direction. The skin surface-side base sheet and the outer surface-side base sheet are joined to each other on the inner side in the lateral direction from the edges on both sides in the lateral direction in at least one of the front part and the back part of the exterior material. Yes. Therefore, it is difficult for the exterior material to extend in the vertical direction by being joined to the skin surface side base sheet and the outer surface side base sheet by the base sheet joining portion in the front part or the back part of the exterior material, or both. Become. For this reason, when the diaper is pulled up while holding the upper end portion, the longitudinal extension of the exterior material is moderately suppressed, and the entire upper end portion of the exterior material to the crotch region can be pulled up together. For this reason, when the diaper is worn, the crotch region of the diaper is brought into close contact with the skin surface of the wearer, and a gap can be prevented from being generated between the crotch region and the skin surface. In addition, it is possible to prevent the exterior material from being damaged by applying an excessive force to the exterior material to raise the crotch region of the diaper. As a result, the diaper can be easily attached.

  Moreover, since the front abdominal part or the back part of the exterior material, or both are reinforced by joining the skin surface side base material sheet and the outer surface side base material sheet by the base material sheet joining part, the exterior material is configured. The substrate sheet can be made thinner, which can reduce the material cost.

  According to the pants-type disposable diaper according to the ninth aspect of the invention, since the hot melt adhesive is used for joining the base sheet joining portion, the skin-side base sheet and the outer base-side base sheet of the exterior material Bonding can be performed easily and the flexibility of the bonded portion can be maintained.

It is a top view when the underpants type disposable diaper which concerns on 1st Embodiment of this invention is cut | disconnected from the right and left side junction part, and expand | deployed in substantially planar shape. It is sectional drawing which shows typically the structure of the cross section along the AA of FIG. It is a figure which shows the modification regarding the provision form of the reinforcement tape of the structure shown in FIG. It is a figure which shows the other modification regarding the provision form of the reinforcement tape of the structure shown in FIG. It is a figure which shows the further another modification regarding the provision form of the reinforcement tape of the structure shown in FIG. It is a top view when the underpants type disposable diaper which concerns on 2nd Embodiment of this invention is cut | disconnected from the right and left side junction part, and expand | deployed in substantially planar shape.

  With reference to FIG.1 and FIG.2, the underpants type disposable diaper (henceforth a "diaper" only) 1 which concerns on 1st Embodiment of this invention is demonstrated. In addition, in this specification and drawing, the vertical direction Y respond | corresponds to a wearer's front-back or an up-down direction, and the horizontal direction X respond | corresponds to a wearer's left-right direction.

  The diaper 1 which concerns on this embodiment is provided with the exterior material 2, the interior material 3, and the at least 1 reinforcement tape 4 as shown in FIG.1 and FIG.2. The exterior material 2 has a front abdomen 21, a back part 22, and a crotch part 23 provided between the front part 21 and the back part 22. Edges 21 a on both sides in the lateral direction X of the front abdomen 21 and edges 22 a on both sides in the lateral direction X of the back portion 22 are joined at the side joining part 5 by welding or an adhesive.

  The exterior material 2 includes a skin surface side base sheet 24 and an outer surface side base sheet 25 that are superposed on each other. The skin surface side base material sheet 24 and the outer surface side base material sheet 25 are made of a nonwoven fabric or the like. Between the skin surface side base sheet 24 and the outer side base sheet 25, the front and rear leg elastic members 11, 12, the front and rear body elastic members 13, 14, and the front and rear waist elasticity The members 15 and 16 are sandwiched in an extended state, and a reinforcing tape 4 described later is sandwiched.

  Bonding of the skin surface side base sheet 24 and the outer surface side base sheet 25 is performed at the part where the elastic members 11 to 16 and the reinforcing tape 4 are sandwiched, and the side joint part 5, and other parts. However, they are not joined to ensure the flexibility of the outer packaging material 2, simplify the manufacturing process, reduce the cost of materials such as adhesives, and the like. In the portion where the elastic members 11 to 16 are sandwiched, the elastic members 11 to 16 are bonded to the base material sheets 24 and 25 by the adhesive (for example, hot melt adhesive) applied to the elastic members 11 to 16. Along with this, the base material sheets 24 and 25 are also bonded together by an adhesive. Further, in the portion where the reinforcing tape 4 is sandwiched, the skin surface side surface and the outer surface side surface of the reinforcing tape 4 are joined to the base sheet 24, 25 by an adhesive (for example, hot melt adhesive). The base material sheets 24 and 25 are also bonded to each other through the reinforcing tape 4.

  The front and leg elastic members 11 and 12 are for tightening a portion along the leg hole of the exterior material 2 to fit around the leg of the wearer. The elastic member 11 around the front leg 11 is stretched from both crotch side ends of both edges 21a in the lateral direction X of the front abdomen 21 of the exterior member 2 in the lateral direction X of the crotch 23. It extends to the crotch side along one of the edges, crosses the crotch region 23a, proceeds along one of the two edges in the lateral direction X of the crotch 23, and extends in the lateral direction of the front abdomen 21 It extends to either crotch side end of either edge 21a of X. The elastic members 12 around the rear legs 12 are stretched from the crotch side ends of either one of the two edges 22a in the lateral direction X of the rear portion 22 of the exterior material 2 in the lateral direction X of the crotch 23. It extends to the crotch side along either one of the two edges, crosses the crotch region 23a, proceeds along one of the two edges in the lateral direction X of the crotch 23, and It extends to either crotch side end of either edge 22a in the direction X.

  The front and rear body elastic members 13 and 14 are for tightening intermediate portions in the longitudinal direction Y of the front abdomen 21 and the back part 22 of the exterior material 2 to fit around the waist of the wearer. And it is extended in the state extended | stretched along the horizontal direction X in the intermediate part of the vertical direction Y of the back part 22. FIG. The front and rear waist elastic members 15 and 16 are for tightening the upper edge of the front abdomen 21 and the back part 22 of the exterior material 2 to fit around the waist of the wearer. 21 and the rear edge portion 22 are extended in the state of being stretched along the lateral direction X.

  The reinforcing tape 4 has a thin and substantially band-like form and has lower stretchability in the longitudinal direction Y than the base material sheets 24 and 25 constituting the exterior material 2. As a material of the reinforcing tape 4, for example, a resin such as polypropylene (PP) or polyethylene (PE) is used. Moreover, you may use a nonwoven fabric as the reinforcement tape 4, and in this case, the influence of the breathability by the provision of the reinforcement tape 4, a fall of a softness | flexibility, etc. can be avoided. Alternatively, as the reinforcing tape 4, a resin-made breathable sheet provided with a large number of through holes, or a braided sheet knitted in a mesh shape may be used.

  Such reinforcing tapes 4 are applied one by one along the substantially vertical direction Y on both the left and right sides of the exterior material 2. That is, in this embodiment, two reinforcing tapes 4 are provided. As for the arrangement position of each reinforcing tape 4 in the lateral direction X, for example, the left and right reinforcing tapes 4 are in the vicinity of side edges 3a on both the left and right sides of the interior material 3 described later (more precisely, the lateral direction of the absorbent core 31 described later). It is arranged in the vicinity of the left and right side edges 31a) in the widest portion of X. More specifically, in the configuration shown in FIG. 1, the left and right reinforcing tapes 4 are arranged along the side edges 3 a so as to overlap the side edges 3 a on both the left and right sides of the interior material 3 when viewed from the thickness direction of the diaper 1. ing.

  As a modification regarding this point, the left and right reinforcing tapes 4 may be arranged on the inner side in the lateral direction X with respect to the left and right side edges 3 a of the interior material 3, or the left and right side edges of the interior material 3. You may arrange | position on the outer side of the horizontal direction X rather than 3a. Also, the number of reinforcing tapes 4 may be applied to the central portion in the lateral direction X of the exterior material 2 along the longitudinal direction Y. One side may be provided along the longitudinal direction Y on both sides, or four or more reinforcing tapes 4 may be provided on the exterior member 2.

  Further, the reinforcing tape 4 is provided along the substantially vertical direction Y to at least one of the front abdomen 21 of the exterior material 2 and at least one of the back part 22. In the present embodiment, the reinforcing tape 4 is applied along the substantially longitudinal direction Y over substantially the entire length of the exterior material 2 in the longitudinal direction Y. A modification regarding this point will be described later.

  The interior material 3 includes an absorbent core 31, a back sheet 32, a top sheet 33, left and right side sheets 34, and the like, and is applied to the skin surface side of the exterior material 2. The absorbent core 31 includes an absorbent material that absorbs moisture such as urine excreted by the wearer (for example, a fiber assembly or a sheet body containing an absorbent polymer), and the back sheet 32 on the outer surface side and skin It arrange | positions so that it may be pinched | interposed between the top sheet | seat 33 and the side sheet | seat 34 of the surface side. In the present embodiment, the absorbent material of the absorbent core 31 has a substantially hourglass shape in which the width of the middle portion in the longitudinal direction Y is reduced.

  The back sheet 32 is preferably made of a liquid-impermeable material. As the material, for example, a composite sheet composed of a porous resin film and a non-woven fabric adhered to the outer surface thereof is used.

  The top sheet 33 is made of a liquid-permeable material (for example, a hydrophilic nonwoven fabric), and is disposed along the vertical direction Y at the center in the horizontal direction X on the skin surface side of the absorbent core 31. The left and right side sheets 34 are arranged along the vertical direction Y so as to overlap the left and right edges of the top sheet 33 from the skin surface side. The inner side portion of the side seat 34 in the lateral direction X is a free end that can rise to the skin surface side. And the elastic member 35 is each given to the edge part (front-end | tip) of the inner side of the horizontal direction X of the right and left side seat | sheet 34 in the expanded state. Due to the contraction of the elastic member 35, the portion on the inner side in the lateral direction X of each side seat 34 rises toward the wearer's skin surface and functions as a three-dimensional gather 36. The three-dimensional gather 36 prevents excrement from leaking sideways.

  As described above, according to the diaper 1 according to the present embodiment, the diaper 1 has a thin and substantially band-like shape, and has lower stretchability in the longitudinal direction Y than the base material sheets 24 and 25 constituting the exterior material 2. The reinforcing tape 4 is applied to the exterior material 2 along the substantially vertical direction Y. Therefore, when the diaper 1 is attached and pulled up with its upper end portion, the extension of the exterior material 2 in the longitudinal direction Y is moderately suppressed by the reinforcing tape 4, and the upper end portion of the exterior material 2 to the crotch region 23a. The whole can be raised together. For this reason, when the diaper 1 is mounted, the crotch region 23a of the diaper 1 can be brought into close contact with the skin surface of the wearer, thereby preventing a gap from being generated between the crotch region 23a and the skin surface. In addition, it is possible to prevent the exterior material 2 from being damaged due to excessive force applied to the exterior material 2 in an attempt to raise the crotch region 23a of the diaper 1. As a result, the diaper 1 can be easily attached.

  Moreover, since the exterior material 2 is reinforced by the reinforcement tape 4, the base material sheets 24 and 25 which comprise the exterior material 2 can be made thinner, and, thereby, material cost can be reduced.

  In addition, since the reinforcing tape 4 is applied along the substantially vertical direction Y over substantially the entire length of the exterior material 2 in the longitudinal direction Y, the reinforcement tape 4 is applied over the approximately entire length of the exterior material 2 in the longitudinal direction Y. A moderate elongation suppression and reinforcement effect with respect to the longitudinal direction Y can be obtained.

  Further, since the reinforcing tape 4 is applied not only to the front abdomen 21 and the back part 22 but also to the crotch part 23 in the exterior material 2, the crotch region 23 a of the diaper is surely raised by pulling up at the time of wearing. It can be adhered to the surface.

  Further, since the reinforcing tape 4 is provided along the substantially vertical direction Y on both the left and right sides of the exterior material 2, moderate reinforcement of the longitudinal direction Y with respect to the longitudinal direction Y by the reinforcing tape 4 and reinforcement are provided on the left and right sides of the exterior material 2. An effect is obtained.

  Next, with reference to FIG. 3 thru | or FIG. 5, the modification of the application form to the exterior | packing material 2 of the reinforcement tape 4 is demonstrated. In the configuration shown in FIG. 3, the reinforcing tape 4 is substantially along the longitudinal direction Y in a portion extending from the front abdominal portion 21 excluding the ends on both sides in the longitudinal direction Y of the exterior material 2 to the back portion 22 through the crotch portion 23. Has been granted.

  As a result, with respect to the portion extending from the front abdomen 21 excluding the ends on both sides in the longitudinal direction Y of the exterior material 2 to the back part 22 through the crotch part 23, the reinforcement tape 4 suppresses moderate elongation and the reinforcement. An effect is obtained. Further, since the reinforcing tape 4 is applied not only to the front abdomen 21 and the back part 22 but also to the crotch part 23 in the exterior material 2, the crotch region 23 a of the diaper 1 is reliably lifted by pulling up at the time of wearing. Can adhere to the skin surface. Moreover, about the edge part of the both sides of the vertical direction Y of the cladding | exterior_material 2, the influence with respect to insufficient raising of the crotch area | region 23a of the diaper 1 is small. For this reason, by omitting the application of the reinforcing tape 4 to both ends of the exterior material 2 in the longitudinal direction Y, the material cost can be suppressed without degrading performance such as operability when the diaper 1 is mounted. it can.

  In the configuration shown in FIG. 4, the left and right front reinforcing tapes 41 are applied along the substantially vertical direction Y to the portion from the front abdomen 21 of the exterior material 2 to the front end of the crotch region 23 a of the crotch 23. A rear reinforcing tape 42 is applied along a substantially vertical direction Y to a portion extending from the back portion 22 of the exterior material 2 to the rear end portion of the crotch region 23 a of the crotch portion 23.

  As a result, the portion from the front abdomen 21 of the exterior material 2 to the front end of the crotch region 23a of the crotch 23 and the rear end 22 of the exterior material 2 to the rear end of the crotch region 23a of the crotch 23 With respect to the portion, the effect of moderate suppression of the elongation in the longitudinal direction Y by the reinforcing tapes 41 and 42 and the reinforcement effect can be obtained. Further, in the crotch region 23a of the crotch portion 23 of the exterior material 2, the elongation in the longitudinal direction Y when the diaper 1 is mounted is relatively small. For this reason, by omitting the application of the reinforcing tapes 41 and 42 to the crotch region 23a of the crotch portion 23 of the exterior material 2, the material cost can be reduced without causing a decrease in performance such as operability when the diaper 1 is mounted. Can be suppressed. As a further modification of the configuration shown in FIG. 4, the front reinforcing tape 41 is applied only to the front abdomen 21 of the exterior material 2, and the rear reinforcing tape 42 is applied only to the rear back portion 22 of the exterior material 2. The application of the reinforcing tapes 41 and 42 may be omitted for the entire crotch portion 23.

  In the above-described embodiment and the configuration shown in FIGS. 3 and 4, the reinforcing tapes 4, 41, and 42 are applied along the substantially longitudinal direction Y. However, the reinforcing tape 4 is inclined in an oblique direction with respect to the longitudinal direction Y. You may give along. For example, as shown in FIG. 5, the left and right reinforcing tapes 4 and the like are gradually reduced from the front edge to the crotch side with respect to the front portion of the exterior material 2. The rear portion of the exterior material 2 may be applied so that the space between the left and right reinforcing tapes 4 gradually increases from the crotch toward the rear edge.

  As a further modification, the color of the reinforcing tape 4 may be a color different from the colors of the base material sheets 24 and 25 constituting the exterior material 2. For example, when the color of the base sheets 24 and 25 is white, the color of the reinforcing tape 4 may be blue. Thereby, a wearer can be made to recognize easily the part to which the reinforcement tape 4 of the exterior material 2 is provided through the outer surface side base material sheet 25 of the exterior material 2. For this reason, it is possible to effectively prompt the wearer to hold and pull up the portion to which the reinforcing tape 41 of the exterior material 2 is applied at the time of wearing. As a result, the diaper 1 can be mounted more smoothly, and damage to the exterior material 2 can be suppressed.

  Next, with reference to FIG. 6, the diaper 1a which concerns on 2nd Embodiment of this invention is demonstrated. In addition, the point from which the diaper 1a which concerns on this embodiment differs substantially from the diaper 1 which concerns on the above-mentioned 1st Embodiment is only the point by which the base material sheet junction part 6 was provided instead of providing the reinforcement tape 4, Parts corresponding to those of the configuration related to the above-described diaper 1 are denoted by the same reference numerals and description thereof is omitted.

  In the diaper 1a according to the present embodiment, as shown in FIG. 6, at least one base sheet joining portion 6 that joins the skin side base sheet 24 and the outer side base sheet 25 of the exterior material 2 is provided. ing. The base sheet joining portion 6 is more lateral than the portion where the side joining portions 5 of the edge portions 21a and 22a on both sides in the lateral direction X are provided in at least one of the front abdomen 21 and the back portion 22 of the exterior material 2. On the inward side of the direction X, it extends in a substantially line shape or a substantially band shape along a substantially vertical direction Y. In the configuration shown in FIG. 6, left and right base sheet joining portions 6 that extend in a substantially strip shape are provided in the portion where the left and right reinforcing tapes 4 in FIG. 1 are provided. That is, the left and right base sheet joining portions 6 are provided along the substantially longitudinal direction Y over substantially the entire length in the longitudinal direction Y on both the left and right sides of the exterior material 2. A hot melt adhesive is used for joining the base material sheets 24 and 25 at the base material sheet joining portion 6.

  In this way, the base material sheets 24 and 25 of the exterior material 2 are joined by the base material sheet joining portion 6 extending in a strip shape in the substantially vertical direction Y, so that the base material sheet joining portion 6 of the exterior material 2 is provided. (In the configuration shown in FIG. 6), the whole of the exterior material 2 in the longitudinal direction Y is difficult to extend in the longitudinal direction Y. For this reason, when the diaper 1a is attached and pulled up with its upper end portion, the extension of the exterior material 2 in the longitudinal direction Y is moderately suppressed, and the entire area from the upper end portion of the exterior material 2 to the crotch region 23a is brought together. Can be raised. For this reason, when the diaper 1a is mounted, the crotch region 23a of the diaper 1a can be brought into close contact with the skin surface of the wearer, thereby preventing a gap from being formed between the crotch region 23a and the skin surface. Further, it is possible to prevent the exterior material 2 from being damaged by applying an excessive force to the exterior material 2 in an attempt to raise the crotch region 23a of the diaper 1a. As a result, the diaper 1a can be easily attached.

  Moreover, since the exterior material 2 is reinforced by joining the base material sheets 24 and 25 by the base material sheet joining portion 6, the base material sheets 24 and 25 constituting the exterior material 2 can be made thinner. This can reduce the material cost.

  Moreover, since a hot melt adhesive is used for joining the base material sheet joining portion 6, the base material sheets 24 and 25 of the exterior material 2 can be easily joined, and the flexibility of the joint portion can be maintained.

  As a modification regarding the diaper 1a which concerns on the above-mentioned embodiment, in the structure shown in the above-mentioned FIG. 3 thru | or 5, and those modifications, instead of the reinforcement tapes 4, 41, 42, the reinforcement tapes 4, 41, 42 are The structure etc. which provided the base material sheet junction part 6 in the provided part are mentioned.

  1, 1a Diaper, 11 Front leg elastic member, 12 Rear leg elastic member, 13 Front body elastic member, 14 Rear body elastic member, 15 Front waist elastic member, 16 Rear waist elastic member, 2 Exterior material, 21 front abdomen, 22 back part, 23 crotch part, 23a crotch region, 24 skin side base sheet, 25 outer base sheet, 3 interior material, 31 absorbent core, 32 back sheet, 33 top sheet, 34 side sheet , 35 Elastic member, 36 Solid gathers, 4, 41, 42 Reinforcement tape, 5 Side joint, 6 Base sheet joint, X transverse direction, Y longitudinal direction.

Claims (9)

A pants-type disposable diaper,
A front abdomen, a back part, and a crotch part provided between the front abdomen and the back part, both lateral edges of the front abdomen and both lateral parts of the back part An exterior material joined to the edge;
An interior material that has an absorbent core that absorbs moisture and is applied to the skin side of the exterior material;
It has a thin and substantially band-like form, has a lower stretchability than the base sheet constituting the exterior material, and is slanted with respect to the longitudinal direction or the longitudinal direction. At least one reinforcing tape applied along the direction;
A pants-type disposable diaper characterized by comprising: In the underpants type disposable diaper according to claim 1,
The reinforcing tape is applied substantially along the longitudinal direction or the oblique direction to at least one of the front abdomen and at least a part of the back part of the exterior material. A pants-type disposable diaper. In the underpants type disposable diaper according to claim 2,
The pants-type disposable diaper, wherein the reinforcing tape is applied along substantially the longitudinal direction or the oblique direction over substantially the entire length of the exterior material in the longitudinal direction. In the underpants type disposable diaper according to claim 2,
The reinforcing tape is applied substantially along the longitudinal direction or the oblique direction to a portion from the front abdomen except the ends on both sides in the longitudinal direction of the exterior material to the back portion passing through the crotch portion. A pants-type disposable diaper characterized by In the underpants type disposable diaper according to claim 2,
The reinforcing tape is applied from the front part of the exterior material to the front end of the crotch region of the crotch, and from the back part of the exterior material to the rear end of the crotch region of the crotch part. A pants-type disposable diaper, characterized in that the part is provided substantially along the longitudinal direction or the oblique direction. In the pants-type disposable diaper according to any one of claims 1 to 5,
The pants-type disposable diaper, wherein the reinforcing tape is provided along substantially the longitudinal direction or the oblique direction on both the left and right sides of the exterior material. In the underpants-type disposable diaper according to any one of claims 1 to 6,
The pants-type disposable diaper, wherein the reinforcing tape has a color different from the color of the base material sheet constituting the exterior material. A pants-type disposable diaper,
It is constituted by the skin surface side base sheet and the outer side base sheet that are superposed, and has a front part, a back part, and a crotch part provided between the front part and the back part, An exterior material in which the lateral edges of the abdomen and the lateral edges of the back part are joined;
An interior material that has an absorbent core that absorbs moisture and is applied to the skin side of the exterior material;
In at least one of the front abdomen and the back part of the exterior material, it is inclined with respect to the substantially longitudinal direction or the longitudinal direction on the inner side in the lateral direction with respect to the edges on both sides in the lateral direction. Extending in a substantially line shape or a substantially band shape along the oblique direction, and at least one base sheet joining portion joining the skin side base sheet and the outer base sheet,
A pants-type disposable diaper characterized by comprising: In the underpants type disposable diaper according to claim 8,
The said base material sheet junction part joins the said skin surface side base material sheet and the said outer surface side base material sheet with a hot-melt-adhesive, The underpants type disposable diaper characterized by the above-mentioned.

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