TW201701847A - Absorptive article - Google Patents

Abstract

A diaper 1 has an absorptive main body (2) and a belt section (31). The diaper 1 has formed therein a pair of leg openings (4) and has provided thereon a pair of joining sections (51, 52) for joining at least the absorptive main body (2) and the belt section (31) together, the pair of joining sections (51, 52) being tilted outward in the horizontal direction from the vertical top side toward the pair of leg openings (4). The absorptive main body (2) has an absorption body (21), a skin-side sheet (22), an exterior sheet (23), and a non-skin-side sheet (24). Separate sheet members (61, 62) are provided between the pair of joining sections (51, 52) in the horizontal direction, and the separate sheet members (61, 62) have portions which overlap regions of the absorptive main body (2), the regions being those where the absorption body (21) is not provided.

Description

Absorbent article

The present invention relates to absorbent articles.

Conventionally, as the absorbent article, a so-called pant-type disposable disposable diaper having a waist opening portion and a pair of leg portions has been known. For example, Patent Document 1 discloses a disposable disposable diaper including an absorbent body (paper diaper main body) in which a foot gather portion is formed along an outer edge of a foot circumference portion, and is disposed in an absorbent body. A pair of waistbands on either side of the width direction of the body.

In the disposable disposable diaper described in Patent Document 1, the absorbent system is disposed on the liquid-permeable surface sheet on the side in contact with the wearer's skin, and is placed in contact with the wearer's skin. The liquid-impermeable back sheet opposite to the side and the liquid absorber enclosed between the liquid-permeable surface sheet and the liquid-impermeable back sheet are laminated. A pair of waistbands are respectively joined at both ends in the width direction of the absorbent body at both ends in the longitudinal direction. The pair of joint portions are inclined outward in the width direction. Between the width directions of the pair of joined portions, the absorbent body has a region where no liquid absorbent body is provided.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 9-290003

In the case described in Patent Document 1, the absorbent body has a region in which the liquid absorbent body is not provided, that is, the rigidity is smaller than the width direction of one of the center of the abdomen side and the center of the back side of the wearer. When the area where the liquid absorbing body is provided is low, it is easy to cause distortion, wrinkles, and the like in the region where the rigidity is low when the wearing is performed. Therefore, it is difficult to match the wearer's skin, and there is a problem that the wearer is given an uncomfortable feeling or the appearance is impaired.

The present invention has been made in view of the above problems, and an object of the invention is to provide an absorbent article which can suppress generation of distortion, wrinkles, and the like in an absorbent body, and can improve fit, and It gives the impression that the appearance is neat and tidy.

An absorbent article according to the present invention for achieving the above object is an absorbent article having a longitudinal direction, a transverse direction, and a front-rear direction, and has an absorbent body along the longitudinal direction and a transverse direction a belt portion and a pair of foot opening portions formed from the longitudinal direction The pair of joint portions which are inclined toward the outer side in the lateral direction toward the outer side in the lateral direction opening portion and at least the absorbent body and the belt portion are respectively provided on the front side and the rear side, and the absorbent system is provided An absorbent body for absorbing liquid, a liquid permeable skin side sheet disposed closer to the skin side than the absorbent body, an outer sheet disposed closer to the non-skin side than the absorbent body, and disposed on the absorbent body and the outer surface a liquid-impermeable non-skin side sheet in which a sheet is provided, and a different body sheet member is provided between the lateral direction of the pair of the joint portions in at least one of the front-rear directions, and the different body sheet member has the aforementioned The portion of the absorbent body in which the regions of the absorbent body are overlapped is not provided. Other features of the present invention will become more apparent from the description of the specification and drawings.

According to the present invention, generation of distortion, wrinkles, and the like in the absorbent body can be suppressed, and the fit can be improved, and the appearance of the appearance can be suppressed.

1‧‧‧paper diapers (absorbent articles)

2‧‧‧Absorbable ontology

4‧‧‧foot opening

21‧‧‧Absorbent layer

22‧‧‧ Skin side sheet

23‧‧‧Outer sheets

24‧‧‧Non-skin side sheet

31‧‧‧Lead Department

51‧‧‧1st joint

51a‧‧‧A region between the lateral direction of a pair of first joints

52‧‧‧2nd joint

52a‧‧‧A region between the lateral direction of a pair of second joints

61, 63, 65‧‧‧1st different body sheet member

62, 64, 66‧‧‧2nd different body sheet member

632, 642‧‧‧ non-joining

632a, 642a‧‧‧ space

632b, 642b‧‧‧ rubber thread (elastic member)

Fig. 1 is a schematic perspective view showing the appearance of a disposable diaper according to a first embodiment of the present invention.

Fig. 2A is a plan view showing a disposable diaper in a state in which the absorbent body is elongated in the longitudinal direction, and Fig. 2B is a sectional view taken along line IIB-IIB of Fig. 2A.

Figure 3A shows an unfolded state of the diaper on the way to the manufacturing process. Fig. 3B is a sectional view taken along line IIIB-IIIB of Fig. 3A.

4A and 4B are schematic plan views of the paper diaper, wherein Fig. 4A shows a case where the disposable diaper is viewed from the front, and Fig. 4B shows a case where the disposable diaper is viewed from the rear.

Fig. 5 is a schematic cross-sectional view showing the paper diaper cut in the longitudinal direction.

6A and 6B are plan views showing a developed state of the disposable diaper in the middle of the manufacturing process, and Fig. 6B is a sectional view taken along line VIB-VIB of Fig. 6A. .

Fig. 7 is a schematic cross-sectional view showing a state in which the disposable diaper according to the second embodiment of the present invention is cut in the longitudinal direction.

Fig. 8 is a schematic cross-sectional view showing a state in which the disposable diaper according to the third embodiment of the present invention is cut in the longitudinal direction.

According to the description of the specification and the drawings, at least the following matters can be made clearer.

An absorbent article comprising an absorbent article in a longitudinal direction, a transverse direction, and a front-rear direction, comprising: a pair of absorbent bodies along the longitudinal direction and a belt portion along the lateral direction; The foot opening portion is provided in front of the pair of the joint portions in which the pair of the foot opening portions are inclined outward in the lateral direction from the upper side in the longitudinal direction and at least the absorbent body and the belt portion are joined to each other. And the latter, the absorbent system has an absorbent body for absorbing liquid, and the liquid permeable skin side sheet disposed closer to the skin side than the absorbent body is provided. The absorbent sheet is disposed on the outer sheet that is closer to the non-skin side, and the liquid-impermeable non-skin side sheet disposed between the absorber and the outer sheet, and the pair of the at least one of the front-rear directions Between the lateral directions of the joint portion, different body sheet members are provided, and the different body sheet members have a portion overlapping the region of the absorbent body where the absorber is not provided.

According to such an absorbent article, the different body sheet members provided between the pair of joint portions corresponding to the center of the abdomen side and the center of the back side of the wearer have a region smaller than that of the region where the absorber is not provided. Since the region where the region of the absorber is low is overlapped, the rigidity of the region where the absorber is not provided is improved, and it is possible to suppress the occurrence of distortion, wrinkles, and the like of the absorbent body when worn, and to improve the fit. In this way, it is also possible to give an impression of neatness in appearance.

In the absorbent article, it is preferable that the different body sheet member is provided closer to the non-skin side than the absorbent body.

According to such an absorbent article, for example, a different body sheet member is provided at a position closer to the non-skin side than an absorbent body that absorbs excretion liquid such as urine, and the different body sheet member has an absorbent body. The overlapping portion of the region may be provided, and the different body sheet member is disposed closer to the skin side than the absorbent body (it should be considered not to overlap with the region where the absorbent body is provided), and a larger different body sheet can be used. Therefore, the rigidity of the member is increased in a wider area of the absorbent body, and it is possible to further suppress the occurrence of distortion, wrinkles, and the like of the absorbent body when worn, and to improve the fit. In this way, it is also possible to give a more neat print on the appearance. Elephant.

In the absorbent article, it is preferable that the different body sheet member is provided between the absorbent body and the exterior sheet.

According to such an absorbent article, since the different body sheet members are provided between the absorber and the exterior sheet and are not exposed to the outside, the different body sheet members are not conspicuous in appearance, and can be provided more neatly. Impression.

In the absorbent article, at least a part of the different body sheet member to which the color is applied is provided at a position closer to the non-skin side than the outer sheet, and the lateral direction of the pair of the joint portions on the front side The color of the inter-region is preferably different from the color of the region between the lateral directions of the pair of the aforementioned joint portions on the rear side.

According to such an absorbent article, since the different body sheet members having different colors are disposed closer to the non-skin side than the outer sheet, the different body sheet members can be easily recognized from the outside, so that the different body sheet members are Based on the color to be given, it is easy to judge the front-rear direction of the absorbent article.

In the absorbent article, the different body sheet member is preferably provided at a position closer to the skin side than the absorbent body.

According to such an absorbent article, since the different body sheet members are disposed closer to the skin side than the absorbent body and are not exposed to the outside, the different body sheet members are not conspicuous in appearance, and can be more neatly fallen. Impression.

In the absorbent article, the aforementioned different body sheet member is The lower end side in the longitudinal direction has a non-joining portion that is not joined to the absorbent body, and a space that opens downward in the longitudinal direction is formed between the non-joining portion and the absorbent body.

According to such an absorbent article, a space that opens downward in the longitudinal direction is formed between the non-joining portion and the absorbent body, and the urine that can be conveyed on the surface of the absorbent body can be received in the space. Prevent leakage of urine and the like. Further, even when the absorbent pad is used for the absorbent article, the end portion of the absorbent pad in the longitudinal direction can be easily accommodated in the space. Therefore, it is not necessary to separately provide a space for accommodating the absorbent pad.

In the absorbent article, it is preferable that the elastic member is joined to the non-joining portion in a state of being elongated in the lateral direction.

According to such an absorbent article, even when the end portion in the longitudinal direction of the absorbent pad is housed in a space formed between the non-joining portion and the absorbent body, the elastic member is joined to the non-joining portion. The non-joining portion is contracted in the lateral direction, and the gap between the end portion of the absorbing pad accommodated in the space is filled, so that the end portion of the absorbing pad can be prevented from being detached from the space. .

In the absorbent article, the different body sheet members are provided between the lateral direction of the pair of the joint portions on the front side and the lateral direction of the pair of the joint portions on the rear side, respectively. One of the different body sheet members on the side and the different body sheet member on the rear side is provided closer to the non-skin side than the absorber, and the other is disposed closer to the muscle than the absorber. The position of the skin side.

According to such an absorbent article, by changing the position at which the different body sheet members are provided on the front side and the rear side, it is possible to easily perform the absorption at the time of wearing based on the difference in the structure between the front side and the rear side. Judgment of the direction of the sex item before and after.

In the absorbent article, the one of the front side is provided in a state in which at least a part of the different body sheet member is provided with a color, and the outer sheet is disposed closer to the non-skin side than the outer sheet. It is preferable that the color of the region between the lateral directions of the joint portion is different from the color of the region between the lateral directions of the pair of the joint portions on the rear side.

According to such an absorbent article, by giving color to a different body sheet member in which the absorbent body is disposed closer to the non-skin side, and providing the outer sheet to be closer to the non-skin side, it is easy to recognize the difference from the outside. Since the body sheet member is based on the color to which the different body sheet member is applied, it is easy to judge the front-rear direction of the absorbent article when worn.

In the absorbent article, it is preferred that the region in which the absorbent body is not provided in the absorbent body is a non-stretchable region.

According to such an absorbent article, the region in which the absorbent body is not provided in the absorbent body is a non-stretchable region that does not have stretchability, so that the skin-side sheet does not expand and contract in the lateral direction, and it is difficult to fit the wearer. Skin. As a result, when wearing, a gap is formed between the skin-side sheet and the wearer's skin, and twisting, wrinkles, and the like are more likely to occur. because By making the different body sheet members have a portion overlapping the region where the absorbent body is not provided, the rigidity of the region where the absorbent body is not provided is improved, and distortion, wrinkles, and the like can be suppressed during wearing, and the fit can be achieved. Sexual improvement. In this way, it is also possible to give an impression of neatness in appearance.

In the absorbent article, it is preferable that the different body sheet members are integrally joined to the absorbent body and the belt portion by the pair of joint portions.

According to such an absorbent article, by integrally joining the different body sheet members, the absorbent body, and the belt portion in the pair of joint portions, it is possible to suppress the influence of the contact with the skin, the friction, and the like at the time of wearing. When the member is detached from the absorbent body, it is not affected by the influence, and the rigidity of the region where the absorber is not provided can be improved.

===First Embodiment ===

As an example of the absorbent article according to the first embodiment of the present invention, a disposable disposable diaper 1 (hereinafter simply referred to as a disposable diaper 1) will be described.

<Overall structure of disposable diaper 1>

The overall structure of the disposable diaper 1 will be described with reference to Figs. 1 to 3 .

Fig. 1 is a schematic perspective view showing the appearance of a disposable diaper 1 according to a first embodiment of the present invention.

This disposable diaper 1 has a pants-type shape as shown in Fig. 1 when worn. In the shape of a shorts type, the disposable diapers 1 are orthogonal to each other. [Vertical direction], [Horizontal direction], and [Front direction]. Further, in the longitudinal direction, the waist side of the wearer is set to the upper side (upper side), and the wearer's lower side of the wearer is set to the lower side (lower side). Further, in the front-rear direction, the wearer's abdomen side is set to the front side (front side), and the wearer's back side is set to the rear side (rear side).

The disposable diaper 1 has the absorptive main body 2 and the foot wrinkle part 32 along the longitudinal direction, and the belt part 31 along the horizontal direction. A waist opening portion HB is formed on the upper side in the longitudinal direction of the disposable diaper 1, and a pair of foot opening portions 4 are formed on both sides in the lateral direction.

The absorbent body 2 has a belt shape and has an absorbent body 21 for absorbing and retaining excretion liquid such as urine. As shown in Fig. 1, in the diaper 1 of the pants type, one end side in the longitudinal direction of the absorbent main body 2 is located on the upper side in the front side, and the other end side in the longitudinal direction of the absorbent main body 2 is interposed between the wearer's jaws. Down on the upper side of the rear. Further, in Fig. 1, the absorber 21 is shown by a broken line.

In the present embodiment, the belt portion 31 is provided on the upper side of the longitudinal direction of the disposable diaper 1, and is provided on both sides of the absorbent body 2 in the lateral direction. In the belt portion 31, a plurality of rubber wires 31a that can expand and contract in the lateral direction are arranged in the longitudinal direction. The foot gathers 32 are provided on both sides of the absorbent body 2 in the lateral direction. In the leg gathers 32, a plurality of rubber wires 32a that can expand and contract in the longitudinal direction are arranged side by side in the lateral direction. The action diaper 1 such as the rubber thread 31a disposed on the belt portion 31 and the rubber thread 32a disposed on the leg gather portion 32 can be fitted to the waist circumference, the foot circumference, and the like of the wearer.

The peripheral edge 40 of the pair of foot opening portions 4 is formed by a pair of belt portions The lower edge in the longitudinal direction of 31 is formed at the outer edge of the lateral direction of the pair of leg gathers 32. Further, it is not always necessary to form the peripheral edge 40 of the pair of the foot opening portions 4 by the lower edges of the pair of belt portions 31 and the outer edges of the pair of leg gather portions 32, or the longitudinal edges of the pair of belt portions 31. The lower end portion and the outer end portion of the pair of leg gather portions 32 in the lateral direction are provided with a separate sheet member, and the peripheral edge 40 of the pair of foot opening portions 4 is formed by the edge portion of the other sheet member or the like.

The front side of the disposable diaper 1 is inclined in the lateral direction from the upper side (the waist opening portion HB) in the longitudinal direction toward the outer side of the foot opening portion 4 in the lateral direction. In the same manner, the second joining portion 52 is arranged in the lateral direction in the rear side of the disposable diaper 1 so as to be inclined outward from the upper side in the longitudinal direction toward the outer side opening portion 4 in the lateral direction. The first joint portion 51 and the second joint portion 52 join the outer end portions of the absorbent main body 2 in the lateral direction and the inner end portions of the belt portion 31 in the lateral direction.

Different body sheet members are provided between the pair of first joint portions 51 in the lateral direction and the pair of second joint portions 52 in the lateral direction. In FIG. 1, only the different body sheet member (the first different body sheet member 61) provided between the pair of first joining portions 51 in the lateral direction is displayed. Further, in Fig. 1, the first different body sheet member 61 is displayed in a dot pattern, and the portion of the absorbent body 2 hidden by the first different body sheet member 61 is shown by a broken line. The details of the different body sheet member will be described later.

Next, the structure of each member in a state in which the disposable diaper 1 is stretched along the longitudinal direction of the absorbent body 2 will be described with reference to FIGS. 2A and 2B and FIGS. 3A and 3B.

Fig. 2A is a plan view showing the disposable diaper 1 in a state in which the absorbent body is elongated in the longitudinal direction, and Fig. 2B is a sectional view taken along line IIB-IIB of Fig. 2A. Fig. 3A is a developed plan view showing the unfolded state of the disposable diaper in the middle of the manufacturing process, and Fig. 3B is a sectional view taken along line IIIB-IIIB of Fig. 3A.

The disposable diaper 1 is in the final stage of the manufacturing process and is in a planar state as shown in Fig. 2A. The disposable diaper 1 has a [longitudinal direction], a [lateral direction], and a [thickness direction] which are orthogonal to each other. The longitudinal direction of the disposable diaper 1 is the direction along the longitudinal direction of the absorbent main body 2, and corresponds to the longitudinal direction of the disposable diaper 1 as shown in FIG. However, the length direction of the disposable diaper 1 in the longitudinal direction of the disposable diaper 1 and the longitudinal direction of the disposable diaper 1 are somewhat different, and it is divided into the longitudinal direction of the pants type. Both [and the longitudinal direction of the planar state] will be described.

2A, the state in which the disposable diaper 1 is stretched along the longitudinal direction of the absorbent body 2 means that the disposable diaper 1 is disposed over the respective elastic members disposed on the disposable diaper 1 (for example, disposed on the belt portion 31). In a state in which the rubber wire 31a and the rubber wire 32a disposed on the leg gather portion 32 are stretched in the longitudinal direction, the member is stretched until the wrinkles and wrinkles are substantially unrecognizable in the portion where the elastic members are disposed. The state of the degree. Therefore, the shape of the disposable diaper 1 in a state of being elongated in the longitudinal direction of the absorbent body 2 is the same as the shape of the disposable diaper 1 which is flatly extended without the contraction force of each elastic member.

In the following description, the side that abuts the abdomen side of the wearer is set to the length in a state where the disposable diaper 1 is extended in the longitudinal direction. The front side of the direction is set to the rear side of the wearer's back side as the rear side in the longitudinal direction. The horizontal direction of the disposable diaper 1 is the same as the transverse direction of the disposable diaper 1 in the pant type. The thickness direction of the paper diaper 1 in the flat state is a direction orthogonal to the longitudinal direction and the lateral direction, and the side in contact with the wearer's skin is set to [skin side], and the opposite side is set to [non-skin side].

As shown in FIG. 2A and FIG. 2B, in the paper diaper 1 in a flat state, the pair of leg gathers 32 are disposed on both sides of the absorbent body 2 in the lateral direction, and the pair of belt portions 31 are provided with the absorbent body 2 A part of the foot wrinkle portion 32 is disposed so as to overlap the skin side in the thickness direction.

In the present embodiment, the belt portion 31 and the leg gather portion 32 thus arranged are formed by folding back the sheet member 3 in the lateral direction on the return line FL extending in the longitudinal direction as shown in FIG. 3A. In other words, the sheet member 3 includes the belt portion 31 and the leg gather portion 32. In Fig. 2A and Fig. 3A, the return line FL is shown by a two-dot chain line.

As shown in FIG. 2B and FIG. 3B, the sheet member 3 is formed by laminating a flexible sheet member such as a nonwoven fabric in a thickness direction, and a rubber thread (for example, a rubber thread 31a on the belt portion 31 side, a foot wrinkle) is formed therebetween. The elastic member such as the rubber thread 32a) on the side of the pleat portion 32 is disposed in a state of being elongated in the longitudinal direction.

As shown in Fig. 3B, the outer end portion of the belt portion 31 in the lateral direction is folded back twice in the lateral direction at the first belt end return line FLb1 and the second belt end return line FLb2 (shown in Fig. 3A). Then, it is fixed in the folded state by a hot melt adhesive or the like. In other words, the second belt end turn-back line FLb2 is formed in the lateral inner end portion 31ei of the belt portion 31 in Fig. 2A. The part becomes the part of the circumference of the waist opening HB.

By forming the waist opening portion HB as such an end portion folding structure, when the disposable diaper 1 is worn, the pressure of the wearer's waist circumference can be reduced. However, the lateral end portion may not be a folding structure as described above.

As shown in FIG. 2A, in the belt portion 31, a notch 41 formed by cutting a part of the outer end portion 310 (the return line FL) in the lateral direction is formed. Similarly, in the foot gather portion 32, a notch 42 formed by cutting a part of the outer end portion 320 (the return line FL) in the lateral direction is formed.

The foot opening portion 4 (see FIG. 1) can be formed by combining the notch 41 on the side of the belt portion 31 with the notch 42 on the side of the leg gather portion 32. In the present embodiment, since the belt portion 31 and the leg gather portion 32 are provided on the sheet member 3, the notch 41 on the side of the belt portion 31 and the notch 42 (foot opening portion 4) on the side of the leg gather portion 32 are borrowed. It is formed by a through hole that penetrates the sheet member 3 in the thickness direction. Further, as shown in FIG. 2A and FIG. 3A, the shape of the notch 41 on the side of the belt portion 31 is somewhat different from the shape of the notch 42 on the side of the leg gathers 32. However, the shape is not limited thereto and may be the same shape.

As shown in FIG. 2B and FIG. 3B, the absorbent body 2 has an absorbent body 21 for absorbing liquid and holding it, and a skin side sheet 22 disposed on the skin side closer to the thickness direction than the absorbent body 21; 21 is disposed on the non-skin side outer sheet 23 closer to the thickness direction; and the non-skin side sheet 24 disposed between the absorber 21 and the exterior sheet 23.

The absorber 21 is provided with a liquid absorbing material formed into a preform An absorbent core material having a shape (for example, a plane angle of view of a slightly hourglass bell shape); and a core material wrapping sheet covering the outer peripheral surface of the absorbent core material. Examples of the liquid absorbing material include liquid absorbing fibers such as pulp fibers, and liquid absorbing granular materials such as superabsorbent polymers (so-called SAP). As the core material wrapping sheet, a liquid permeable sheet such as a tissue or a nonwoven fabric can be used. Further, the absorbent body 21 is not necessarily required to have an absorbent core material and a core material wrapping sheet, and may be formed of a material that can absorb the liquid and hold the liquid inside.

The skin side sheet 22 is formed of a liquid permeable flexible sheet member such as a hot air non-woven fabric. The exterior sheet 23 is formed of a sheet member such as a nonwoven fabric. Further, the exterior sheet 23 does not necessarily need to be a liquid permeable sheet member, and may be formed of, for example, a liquid impermeable film or the like. As shown in FIG. 2B and FIG. 3B, the exterior sheet 23 is disposed in each member constituting the absorbent body 2, and is disposed closest to the non-skin side in the thickness direction. The non-skin side sheet 24 is formed of a liquid-impermeable sheet member such as a polyethylene (PE) film or a polypropylene (PP) film.

The respective planar dimensions of the skin side sheet 22, the exterior sheet 23, and the non-skin side sheet 24 are such that they can protrude from both ends in the longitudinal direction of the absorber 21 and both ends in the lateral direction. Therefore, the absorptive main body 2 has a region where the absorber 21 is not provided at both ends in the longitudinal direction and at both ends in the lateral direction. In the present embodiment, the region where the absorber 21 is not provided is a non-stretchable region in which an elastic member or the like is not disposed. Further, the region where the absorber 21 is not provided is not necessarily required to be a non-stretchable region.

The absorbent body 21, the skin side sheet 22, the exterior sheet 23, and The non-skin side sheet 24 is joined to a member adjacent to each other in the thickness direction by an adhesive such as a hot melt adhesive. Examples of the application pattern of the adhesive include an Ω pattern, a spiral pattern, and a stripe pattern. The coating pattern for other adhesives is also the same.

As shown in FIG. 2A, in the longitudinal direction of the paper diaper 1 in the planar state, the first different body sheet member 61 is provided between the pair of first joining portions 51 located in the front direction in the longitudinal direction, and the pair is located at the rear. The second different body sheet member 62 is provided between the lateral direction of the joint portion 52.

In the diaper 1 of the pants type, the first different body sheet member 61 is provided between the one of the front side (the abdomen side of the wearer) in the front-rear direction and the lateral direction of the first joint portion 51. A second different body sheet member 62 is provided between the pair of second joining portions 52 on the rear side in the front-rear direction (the back side of the wearer) in the lateral direction.

In the diaper 1 of the pants type, it is not always necessary to provide the first different body sheet member 61 on the front side in the front-rear direction and the second different body sheet member 62 on the rear side, as long as it is in the front-rear direction. One of the one side faces may be provided with a different body sheet member between the lateral direction of the joint portion.

As shown in FIG. 2A and FIG. 3A, the first different body sheet member 61 and the second different body sheet member 62 have portions overlapping with the region of the absorbent body 2 where the absorber 21 is not provided. Since the rigidity of the region where the absorbent body 21 is not provided is lower than the rigidity of the region in which the absorbent body 21 is provided, when the disposable diaper 1 is worn, distortion, wrinkles, and the like are likely to occur.

In the present embodiment, as described above, since no suction is provided Since the region of the body 21 is a non-stretching region, the skin-side sheet 22 does not expand and contract in the lateral direction in the non-stretching region, and it is difficult to fit the wearer's skin. As a result, when the disposable diaper 1 is worn, a gap is formed between the skin-side sheet 22 and the wearer's skin, and the absorbent body 2 is more likely to be twisted, wrinkled, or the like.

Therefore, by making the first different body sheet member 61 and the second different body sheet member 62 have a portion overlapping the region where the absorbent body 21 is not provided, the rigidity of the region where the absorbent body 21 is not provided can be improved. When the disposable diaper 1 is worn, distortion, wrinkles, and the like are generated, and the fit can be improved. Thereby, the appearance of the disposable diaper 1 can also be given a neat appearance.

As shown in FIG. 2B and FIG. 3B, the second different body sheet member 62 is located closer to the non-skin side in the thickness direction than the absorber 21. Specifically, the second different body sheet member 62 is provided between the absorbent body 21 and the non-skin side sheet 24, but is not limited thereto, and may be provided at a position closer to the non-skin side than the absorbent body 21. In the present embodiment, the first different body sheet member 61 is also disposed closer to the non-skin side than the second different body sheet member 62 than the second different body sheet member 62. The detailed positional relationship between the first different body sheet member 61 and the second different body sheet member 62 will be described later.

In this manner, when the first different body sheet member 61 and the second different body sheet member 62 are disposed closer to the non-skin side than the absorber 21, the first different body may be as shown in FIGS. 2A and 3A. The sheet member 61 and the second different body sheet member 62 have a region in which the absorber 21 is provided. The part of the domain overlap.

In addition, when the first different body sheet member 61 and the second different body sheet member 62 are disposed closer to the skin side than the absorbent body 21 (in the case of the second embodiment), the first different body sheet member 61 and It is preferable that the second different body sheet member 62 is disposed so as not to overlap with the region in which the absorber 21 is provided. This is because the first different body sheet member 61 and the second different body sheet member 62 are interposed between the excretory opening of the wearer and the absorbent body 21, and the smooth absorption of the liquid toward the absorbent body 21 may be prevented.

Therefore, when the first different body sheet member 61 and the second different body sheet member 62 are disposed closer to the non-skin side than the absorber 21, the first different body sheet member 61 and the second one are different from each other. When the body sheet member 62 is provided at a position closer to the skin side than the absorbent body 21, a larger-sized sheet member can be used, and therefore, the rigidity is improved in a wider area of the absorbent body 2, which can be further suppressed. When the disposable diaper 1 is worn, the absorbent body 2 is twisted, wrinkled, etc., and the fit can be improved. Thereby, the appearance of the disposable diaper 1 can be given a more neat and sloping impression.

For the first different body sheet member 61 and the second different body sheet member 62, for example, a sheet member having excellent air permeability such as a nonwoven fabric can be used, and a sheet member having a high rigidity such as a spunbonded nonwoven fabric or an SMS nonwoven fabric is preferably used. In addition, the first different body sheet member 61 and the second different body sheet member 62 are not necessarily required to be non-woven fabrics, and at least the member of the absorbent body 2 in which the rigidity of the region of the absorbent body 21 is not provided can be improved.

As shown in FIG. 3A, during the manufacturing process of the disposable diaper 1, Each of the first different body sheet member 61 and the second different body sheet member 62 has a long side in the lateral direction of the disposable diaper 1 and a short side rectangle in the longitudinal direction to correspond to the absorbent body 2 and the sheet. A part of the member 3 (the leg gathers 32) is disposed so as to overlap the thickness direction. However, the rectangular first body sheet member 61 and the second different body sheet member 62 are not overlapped with the foot opening portion 4 in order to be disposed, and the width in the short side direction is adjusted. Moreover, the width of the rectangular first different body sheet member 61 and the second different body sheet member 62 in the longitudinal direction is set to be equal to the distance between the return lines FL arranged in the lateral direction.

In the present embodiment, the first different body sheet member 61 is integrally joined to the absorbent body 2 and the sheet member 3 by the pair of first joining portions 51. Specifically, the first different body sheet member 61 is integrally joined to the absorbent body 2 and the sheet member 3 by an adhesive such as a hot melt adhesive, and the sheet member 3 is oriented in the lateral direction on the return line FL. The inner side is folded back to form a pair of first joint portions 51. The first joint portion 51 extends from the front end in the longitudinal direction of the absorbent body 2 to the outer side in the lateral direction to the return line FL.

Similarly to the first different body sheet member 61, the second different body sheet member 62 is integrally joined to the absorbent body 2 and the sheet member 3 by a pair of second joining portions 52. The second joint portion 52 extends from the rear end in the longitudinal direction of the absorbent body 2 toward the outer side in the lateral direction to the return line FL. In FIG. 3A, the first joint portion 51 and the second joint portion 52 are respectively indicated by a one-dot chain line.

Engagement of the first joint portion 51 and the second joint portion 52 The method may, for example, be a conventional welding means such as heat welding or ultrasonic welding, but is not limited thereto, and an adhesive such as a hot melt adhesive may be used.

Further, the first different body sheet member 61 and the second different body sheet member 62 are integrally joined to the absorbent body 2, the belt portion 31, and the foot gather portion 32, but are not limited thereto, and at least the absorbent body 2 and The belt portion 31 may be integrally joined.

By integrally joining the first different body sheet member 61, the absorbent main body 2, and the belt portion 3 in the pair of first joining portions 51, it is possible to suppress the influence of contact with the skin, friction, and the like when the disposable diaper 1 is worn. When the different body sheet member 61 is detached from the absorbent body 2, it is not affected by the influence when it is worn, and the rigidity of the region where the absorber 21 is not provided can be improved. The same applies to the second different body sheet member 62.

The first different body sheet member 61, the absorbent body 2, and the sheet member 3 are joined by the first joining portion 51, and the second different body sheet member 62, the absorbent body 2, and the second joining portion 52 are joined by the second joining portion 52. After the sheet member 3 is joined, the portion extending further outward in the lateral direction than the first joint portion 51 and the second joint portion 52 is cut along the first joint portion 51 and the second joint portion 52, thereby forming A paper diaper 1 in a flat state shown in Fig. 2A.

One of the paper diapers 1 in the flat state is pulled toward the inner side in the lateral direction of the laterally outer end portion 31ei of the belt portion 31, and the absorbent body 2 is folded in the vicinity of the center position CL in the longitudinal direction. This is formed in a state in which the pants-type diaper 1 shown in Fig. 1 can be worn. In Fig. 2A and Fig. 3A, the center position CL is displayed with a one-dot chain line.

<Positional relationship between the first different body sheet member 61 and the second different body sheet member 62>

Next, the positional relationship between the first different body sheet member 61 and the second different body sheet member 62 will be described with reference to FIGS. 4A, 4B and 5.

4A and 4B are schematic plan views of the disposable diaper 1, wherein Fig. 4A shows a case where the disposable diaper 1 is viewed from the front, and Fig. 4B shows a case where the disposable diaper 1 is viewed from the rear. In Figs. 4A and 4B, the absorber 21 is shown by a broken line. Fig. 5 is a schematic cross-sectional view showing a state in which the disposable diaper 1 is cut in the longitudinal direction.

On the front side (the abdomen side of the wearer), the first different body sheet member 61 provided between the pair of first joint portions 51 in the lateral direction is externally mounted to the absorbent body 2 as shown in FIG. The sheet 23 is placed closer to the non-skin side. The surface (surface exposed on the outer side) of the first different body sheet member 61 is given a color such as cyan or red. In addition, it is not always necessary to apply color to the entire surface of the first different body sheet member 61, and other patterns such as a pattern may be used. In other words, at least a part of the first different body sheet member 61 may be colored.

On the rear side (the back side of the wearer), the second different body sheet member 62 provided between the pair of second joining portions 52 in the lateral direction is an absorber provided in the absorbent body 2 as shown in FIG. 21 is between the non-skin side sheet 24. Therefore, since the second different body sheet member 62 is not exposed Therefore, the second different body sheet member 62 is not conspicuous in appearance, and the impression of the more neatly fallen paper diaper 1 can be provided.

In the present embodiment, the second different body sheet member 62 is provided between the absorbent body 21 and the non-skin side sheet 24, but is not limited thereto, and may be provided between the outer sheet 23 and the non-skin side sheet 24, for example. .

As shown in FIG. 4A, when the disposable diaper 1 is viewed from the front, the first different body sheet member 61 to which the color is applied can be confirmed in the region 51a between the pair of first joining portions 51 in the lateral direction. In addition, as shown in FIG. 4B, when the disposable diaper 1 is viewed from the rear, the outer sheet 23 of the absorbent main body 2 can be confirmed in the region 52a between the lateral directions of the pair of second joining portions 52. This is because the second different body sheet member 62 is disposed inside the absorbent body 2 (the outer sheet 23 is closer to the skin side) as described above.

Further, in the present embodiment, the exterior sheet 23 is not colored, and in particular, a pattern or the like is not implemented. In other words, when the disposable diaper 1 is viewed from the outside, the disposable diaper 1 is in a state in which the portion other than the first different body sheet member 61 is not colored.

Therefore, in the disposable diaper 1, the color of the area 51a between the one side of the front side of the first joining portion 51 in the lateral direction is different from the color of the area 52a between the one of the rear side and the lateral direction of the second joining portion 52. By arranging the first different body sheet member 61 to which the color is applied to the position closer to the non-skin side than the outer sheet 23, the wearer can easily recognize the first different body sheet member 61 from the outside, and wear the paper. When the diaper 1 is used, the color of the first different body sheet member 61 can be easily used as a basis. The judgment of the direction of the front and back of the disposable diaper 1.

Here, for example, in the respective members constituting the disposable diaper 1, the state of the white color can be set to [the state in which the color is not applied (uncolored)], and the state of the color other than the white color can be set to the state in which the color (coloring) is given. . In addition, the case of [giving color] also generally applies white to a state of, for example, black (a color other than white).

In addition, the disposable diaper 1 has a color different from the color of the region 51a between the one side of the first joining portion 51 in the lateral direction and the color of the region 52a between the rear side and the lateral direction of the second joining portion 52. In addition to the aforementioned aspects, there are other kinds of aspects.

For example, the first different body sheet member 61 provided at a position closer to the non-skin side than the outer sheet 23 may be colored on the front side, and at least the pair of second joint portions 52 may be horizontally formed on the rear side. The area 52a between the directions imparts a color to the outer sheet 23.

In addition, it is not always necessary to provide the first different body sheet member 61 at a position closer to the non-skin side than the outer sheet 23, and for example, the first different body sheet member 61 may be provided in the absorber 21 and the exterior sheet 23. The second different body sheet member 62 is provided at a position closer to the non-skin side than the outer sheet 23 . In this case, the outer sheet 23 may not be colored on the front side in the region 51a between the pair of first joint portions 51 in the lateral direction, and at least the second different body sheet member 62 may be colored on the rear side. Part of the color is given.

Further, it is not always necessary to provide one of the first different body sheet member 61 and the second different body sheet member 62 in the outer sheet. 23 is closer to the non-skin side, and the other is provided between the absorber 21 and the exterior sheet 23. For example, the first different body sheet member 61 and the second different body sheet member 62 may be provided separately. The sheet 23 is placed closer to the non-skin side. In this case, the color of the first different body sheet member 61 (for example, red) is colored differently from the color of the second different body sheet member 62 (for example, cyan), whereby the front-rear direction of the disposable diaper 1 can be determined.

The first different body sheet member 61 and the second different body sheet member 62 may be provided between the absorber 21 and the exterior sheet 23, respectively. In this case, the sheet 23 is attached to the region 52a between the color of the sheet 23 and the lateral direction of the pair of second joining portions 52 in the region 51a between the lateral direction of the pair of first joining portions 51. The color of the diaper 1 can be judged by the difference in color.

However, in order to facilitate the judgment of the front-rear direction of the disposable diaper 1, it is desirable that at least one of the first different body sheet member 61 and the second different body sheet member 62 is provided closer to the non-skin side than the outer sheet 23 .

In the above-described diaper 1, the color of the region 51a between the one side of the first joining portion 51 in the lateral direction of the first joining portion 51 and the rear side are exemplified in the above-described manner in which the color of the disposable diaper 1 is easily determined. When the color of the region 52a between the lateral directions of the second joining portion 52 is different, the manner of imparting color is not particularly limited.

=== Second embodiment ===

Hereinafter, a disposable diaper according to a second embodiment of the present invention will be described with reference to Figs. 6A, 6B and Fig. 7 .

6A and 6B are plan views showing a developed state of the disposable diaper in the middle of the manufacturing process, and Fig. 6B is a sectional view taken along line VIB-VIB of Fig. 6A. Fig. 7 is a schematic cross-sectional view showing a state in which the disposable diaper of the second embodiment is cut in the longitudinal direction.

In the paper diaper according to the first embodiment, the first different body sheet member 63 and the second different body sheet member 64 are different from the first different body sheet member 61 and the second different body sheet member 62 of the disposable diaper 1 of the first embodiment. The structure is the same except for the structure. 6A, 6B, and 7 are the same as those of the components of the disposable diaper 1 of the first embodiment, and the same reference numerals are given to the same components, and the description thereof is omitted.

In the disposable diaper of the present embodiment, the first different body sheet member 63 and the second different body sheet member 6 are provided closer to the skin side than the absorbent body 21. Specifically, as shown in FIG. 6B and FIG. 7 , the first different body sheet member 63 and the second different body sheet member 64 are disposed closer to the skin side than the skin side sheet 22 . That is, when the wearer wears the disposable diaper, the first different body sheet member 63 and the second different body sheet member 64 are in contact with the wearer's skin.

In this way, since the first different body sheet member 63 and the second different body sheet member 64 are not exposed to the outside, the first different body sheet member 63 and the second different body sheet member 64 are not conspicuous in appearance. It can give the impression of a more neatly fallen paper diaper.

Further, when the first different body sheet member 63 and the second different body sheet member 64 are disposed closer to the skin side than the absorbent body 21, as shown in FIG. 6A, the first different body sheet member 63 is required. The second different body sheet members 64 are disposed so as not to overlap with the region in which the absorber 21 is provided in the absorbent body 2. Therefore, in the disposable diaper, since the first different body sheet member 63 and the second different body sheet member 64 are not interposed between the wearer's excretion opening and the absorbent body 21, the absorbent body 21 can be quickly absorbed. Excretion of urine, etc.

As shown in FIG. 7 , the first different body sheet member 63 has a non-joining portion 632 that is not joined to the absorbent body 2 on the lower end side in the longitudinal direction, and is joined to the absorbent body 2 on the upper side of the non-joining portion 632 . Joint 631. Similarly to the first different body sheet member 63, the second different body sheet member 64 has a non-joining portion 642 on the lower end side in the longitudinal direction and a joint portion 641 on the upper side of the non-joining portion 642. As shown in FIG. 6A, the joint portions 631 and 642 are joined to the absorbent body 2 by applying an adhesive such as a hot melt adhesive to a stripe shape.

As shown in Fig. 7, between the non-joining portion 632 of the first different body sheet member 63 and the skin-side sheet 22 (absorbent body 2), a space 632a that opens downward in the longitudinal direction is formed, and the second different body is formed. A space 642a that opens downward in the longitudinal direction is formed between the non-joining portion 642 of the sheet member 64 and the skin-side sheet 22 (absorbent body 2). The spaces 632a and 642a are spaces that are open to the outside, respectively.

In this manner, the space 632a is formed between the non-joining portion 632 of the first different body sheet member 63 and the absorptive body 2, and the second is not A space 642a is formed between the non-joining portion 642 of the same-body sheet member 64 and the absorptive main body 2, and the urine can be conveyed to the skin side surface of the skin-side sheet 22 along the longitudinal direction of the absorbent body 2 in the spaces 632a and 642a. Liquid that inhibits liquid leakage. In this case, the first different body sheet member 63 and the second different body sheet member 64 are more preferably sheet members that are less likely to permeate liquid.

Further, even when a belt-shaped absorbent pad 7 (shown by a two-dot chain line in Fig. 7) is used for the paper diaper of the present embodiment, the length direction of the absorbent pad 7 can be easily separated. Since the one end portion 73 is housed in the space 632a and the other end portion 74 is housed in the space 642a, it is not necessary to separately provide a space for accommodating the absorbing pad 7. That is, in the disposable diaper of the present embodiment, the absorbent pad 7 of a different body can be applied.

As shown in FIG. 6A, the rubber wire 632b is joined to the non-joining portion 632 of the first different body sheet member 63 in a state of being elongated in the lateral direction, and the rubber thread 642b is joined to the second difference in a state of being elongated in the lateral direction. The non-joining portion 642 of the body sheet member 64. In Fig. 6A, rubber lines 642a, 642b are shown in broken lines. Further, it is not necessarily required to be a rubber thread, and the elastic member which is expandable and contractable in the lateral direction is not particularly limited.

The non-joining portion 632 of the first different body sheet member 63 and the rubber line 642b joined to the non-joining portion 642 of the second different body sheet member 64 by the rubber wire 632a, so that the non-joining portion of the first different body sheet member 63 is not joined The non-joining portion 642 of the 632 and the second different-body sheet member 64 are respectively contracted in the lateral direction, and are buried in the gap with the one end portion 73 of the absorbent pad 7 housed in the space 632a, and are housed in the space 642a. The gap of the other end portion 74 of the inner absorbent pad 7 is buried. Thereby, it is possible to suppress the one end portion 73 and the other end portion 74 of the absorbent pad 7 from coming off from the spaces 632a and 642a.

=== Third embodiment ===

Next, a disposable diaper according to a third embodiment of the present invention will be described with reference to Fig. 8 .

Fig. 8 is a schematic cross-sectional view showing a state in which the disposable diaper of the third embodiment is cut in the longitudinal direction.

The positional relationship between the first different body sheet member 65 and the second different body sheet member 66 of the disposable diaper according to the first embodiment differs from the first different body sheet member 61 and the second different body sheet member of the disposable diaper 1 of the first embodiment. The positional relationship of 62 is different from that of the first different body sheet member 63 and the second different body sheet member 64 of the disposable diaper 1 of the second embodiment, and the other configurations are the same. In the components which are the same as the components of the paper diaper 1 of the first embodiment, the same reference numerals are given to the same components, and the description thereof will be omitted.

In the disposable diaper of the present embodiment, the first different body sheet member 65 is provided closer to the non-skin side than the absorbent body 21, and the second different body sheet member 66 is provided closer to the skin side than the absorbent body 21. position. Specifically, as shown in FIG. 8 , the first different body sheet member 65 is disposed closer to the non-skin side than the exterior sheet 23 , and the second different body sheet member 66 is provided on the skin side sheet 22 . Closer to the side of the skin.

By arranging the position of the first different body sheet member 65 provided on the front side with respect to the position of the absorber 21 and the arrangement position of the second different body sheet member 66 provided on the rear side with respect to the absorber 21, the front side structure and the structure can be The difference in the structure of the rear side is used as a clue, and it is easy to judge the front-back direction of the disposable diaper.

In addition, the first different body sheet member 65 may be disposed closer to the skin side than the absorbent body 21, and the second different body sheet member 66 may be disposed closer to the non-skin than the absorbent body 21. Side position. In other words, one of the first different body sheet member 65 on the front side and the second different body sheet member 66 on the rear side is located closer to the skin side than the absorbent body 21, and the other is absorbed. The body 21 can be placed closer to the skin side.

In addition, the first different body sheet member 65 is provided at a position closer to the non-skin side than the exterior sheet 23 in a state where at least a part of the color sheet member 65 is provided with a color. Therefore, when the disposable diaper member of the present embodiment is viewed from the front, the wearer can confirm the first different body sheet member 65 to which the color is applied, and the wearer can confirm that the color is not colored when the disposable diaper is viewed from the rear. The outer sheet 23 is. In the same manner as the disposable diaper 1 of the first embodiment, the disposable diaper has a pair of colors on the front side of the region 51a between the lateral direction of the first joining portion 51 and the rear side. The color of the region 52a between the lateral directions of the second joint portion 52 is different.

In this way, the first diaper sheet member 65 to which the color is applied is placed closer to the non-skin side than the outer sheet 23, so that the wearer can easily recognize the outside from the outside. The different body sheet member 65 can easily determine the front and rear directions of the paper diaper based on the color of the first different body sheet member 65 when the paper diaper is worn.

===Other ===

The foregoing embodiments are provided to facilitate the understanding of the present invention and are not intended to limit the invention. The present invention can be modified and improved without departing from the scope of the technical idea, and the present invention naturally includes equivalents thereof.

1‧‧‧paper diapers (absorbent articles)

2‧‧‧Absorbable ontology

4‧‧‧foot opening

21‧‧‧Absorbent layer

31‧‧‧Lead Department

31a‧‧‧Rubber line

32‧‧‧Fold folds

32a‧‧‧Rubber line

40‧‧‧ Periphery

51‧‧‧1st joint

52‧‧‧2nd joint

61‧‧‧1st different body sheet member

HB‧‧‧ Waist opening

Claims (11)

An absorbent article having an absorbent article in a longitudinal direction, a transverse direction, and a front-rear direction, comprising: an absorbent body along the longitudinal direction; and a pair of foot openings formed along the belt portion in the lateral direction And a pair of joint portions that are joined to each other at the front and the rear by at least the absorbent body and the belt portion, and the pair of joint portions are directed from the upper side in the longitudinal direction toward the pair of the foot opening portions The absorptive outer system has an absorbent body for absorbing liquid, and a liquid-permeable skin-side sheet disposed at a position closer to the skin side than the absorbent body; and disposed closer to the absorbent body And a liquid-impermeable non-skin side sheet disposed between the absorbent body and the exterior sheet, and the aforementioned pair of the joint portions on at least one of the front-rear directions Between the lateral directions, different body sheet members are provided, and the different body sheet members have portions overlapping with regions of the absorbent body in which the absorbent body is not provided. The absorbent article of claim 1, wherein the different body sheet member is disposed closer to the absorbent body than the absorbent body The position on the non-skin side. The absorbent article according to claim 2, wherein the different body sheet member is provided between the absorbent body and the exterior sheet. The absorbent article according to claim 2, wherein the at least a part of the different body sheet member to which the color is applied is disposed at a position closer to the non-skin side than the outer sheet, and the front side is The color of the region between the lateral direction of the joint portion is different from the color of the region between the lateral direction of the pair of the second joint portions on the rear side. The absorbent article according to claim 1, wherein the different body sheet member is disposed closer to the skin side than the absorbent body. The absorbent article according to claim 5, wherein the different body sheet member has a non-joining portion that is not joined to the absorbent body at a lower end side in the longitudinal direction, and the non-joining portion and the absorbent body are A space opening downward in the longitudinal direction is formed between them. The absorbent article according to claim 6, wherein the elastic member is joined to the non-joining portion in a state of being elongated in the lateral direction. The absorbent article according to claim 1, wherein the different body sheet members are provided on the front side of the pair of the joint portions, and between the pair of the joint portions and the rear side. In the lateral direction of the joint portion, one of the different body sheet members on the front side and the different body sheet members on the rear side are provided closer to the non-skin side than the absorbent body, and the other is It is provided at a position closer to the skin side than the absorbent body. The absorbent article according to claim 8, wherein the one of the different body sheet members is provided at a position closer to the non-skin side than the outer sheet in a state where at least a part of the body sheet member is colored. The color of the region between the lateral direction of the pair of the joint portions on the front side is different from the color of the region between the lateral direction of the pair of the joint portions on the rear side. The absorbent article according to any one of claims 1 to 9, wherein the region of the absorbent body in which the absorbent body is not provided is a non-stretchable region. The absorbent article according to any one of claims 1 to 9, wherein the different body sheet member is integrally joined to the absorbent body and the belt portion by the pair of joint portions.