JP5933958B2 - Absorbent articles - Google Patents

Description

  The present invention relates to absorbent articles such as sanitary napkins, incontinence pads, and urine collection pads.

  Sanitary napkins, incontinence pads, and the like are packaged one by one and provided to consumers in terms of hygiene. Several devices have been made in the past to improve convenience by using the individual packaging member. For example, Patent Document 1 discloses a sanitary napkin that allows an individual packaging bag to be used while being fixed to one end of the sanitary napkin on the non-skin contact surface side. In this case, the individual packaging bag is simply integrated with a napkin so that it can be used at the time of disposal. Patent Document 2 discloses a sanitary napkin in which stretchable both side sheets are fixed to the end in the width direction on the leak-proof sheet side. As in the above-mentioned Patent Document 1, the extensible double-sided sheet is fixed to a napkin at the time of use so that it can be used at the time of disposal. Patent Document 3 discloses a physiology that suppresses leakage by forming a pocket at the end of a sanitary napkin by folding an individual packaging sheet from the non-skin contact surface side of the sanitary napkin to the skin contact surface side. A napkin for use is disclosed. This focuses on leakage prevention.

Japanese Utility Model Publication No. 6-57335 Japanese Utility Model Publication No.7-15020 JP 2011-30638 A

  However, in general, sanitary napkins and the like are firmly fixed to underwear or the like on the back side of the sanitary napkins or the like so that they are not easily peeled off. After use, the firmly fixed surface must be peeled off from underwear and then folded or rolled, which is not easy. At the same time, in order to replace with a new napkin, it is cumbersome to peel off the individual package of the new napkin, expose the adhesive portion, position it, and fix it to the shorts. Further, in these operations, the skin contact surface of the used napkin is easy to touch the skin, and there is a possibility that the hand is dirty or the excreted liquid is scattered. In particular, it is not preferable in terms of hygiene in places used by an unspecified number of people such as public toilets. As described above, complicated operations at the time of disposal or wearing are often performed in a narrow environment such as a toilet, and it is preferable that the labor can be reduced as much as possible. However, in the technique of the above-mentioned document, attention has not been paid to such a problem of complexity at the time of disposal or mounting.

  In view of the above points, an object of the present invention is to provide an absorbent article that can be disposed of in a very hygienic and hygienic manner and that can reduce the labor of replacement.

  The present invention is a vertically long absorption having a liquid-permeable surface sheet disposed on the skin contact surface side, a back sheet disposed on the non-skin contact surface side, and an absorber disposed between the both sheets. An outer layer sheet is disposed on the non-skin contact surface side of the back sheet, and the outer layer sheet has a fixed portion fixed to the absorbent article main body and a free portion not fixed. The adhering part is disposed on the longitudinal front and rear end sides of the absorbent article body, the free part is disposed between the adhering parts, and the free part includes at least two free parts in the longitudinal direction. The absorbent article is provided so that it can be folded back toward each of the adhering portions on the front and rear end sides.

  The absorptive article of the present invention has the outstanding effect that it can be discarded very easily and hygienically, and the labor of replacement can be reduced.

It is the partial notch perspective view which showed typically the shape just before wearing the sanitary napkin as one Embodiment in this invention (before folding an individual packaging sheet) from the skin surface direction. FIG. 2 is a partially cutaway perspective view schematically showing a state in which the sanitary napkin of FIG. It is an expanded sectional view of the III-III line cross section shown in FIG. It is sectional drawing which showed typically the state before using the sanitary napkin of this embodiment from the width direction of the sanitary napkin. It is sectional drawing which showed typically the state which is using the sanitary napkin of this embodiment from the width direction of the sanitary napkin. It is sectional drawing which showed typically the state after use in the sanitary napkin of this embodiment from the width direction of the sanitary napkin. It is a perspective view showing typically the state in the middle of disposal after use in the sanitary napkin of this embodiment. It is a perspective view equivalent to FIG. 7 shown about another form of the outer layer sheet | seat in the sanitary napkin of this embodiment. It is a top view which shows typically the sanitary napkin as other preferable embodiment of this invention from the non-skin contact surface side. It is a top view by the side of the non-skin contact surface of the sanitary napkin which shows the modification of an adhering part typically. It is a top view by the side of the non-skin contact surface of the sanitary napkin which shows the other modification of an adhering part typically.

Hereinafter, preferred embodiments of the present invention will be shown and described in detail with reference to the drawings.
FIG. 1 is a partially cutaway perspective view schematically showing the shape of a sanitary napkin 10 as an embodiment of the absorbent article according to the present invention immediately before wearing (before folding an individual packaging sheet) from the skin surface direction. is there. FIG. 2 is a partially cutaway perspective view schematically showing a state in which the sanitary napkin 10 of FIG. 1 is folded in three to form an individual package, and (a) is a state in which the end of the sanitary napkin 10 is folded. (B) shows the back sheet side. 3 is a cross-sectional view taken along the line III-III shown in FIG.

  The sanitary napkin 10 of the present embodiment is disposed between a liquid-permeable top sheet 1 disposed on the skin contact surface side, a back sheet 2 disposed on the non-skin contact surface side, and both the sheets. The absorbent body 3 has a vertically long shape. The absorber 3 and the top sheet 1 are joined and disposed on the skin contact surface side of the back sheet 2 with an adhesive or the like. The sanitary napkin 10 is arranged with the top sheet side facing the wearer's skin contact surface side and the vertical direction extending from the lower abdomen to the buttocks and the width direction facing the direction of the line connecting the left and right feet. Arrange and wear.

  In the sanitary napkin 10, an individual packaging sheet 60 as the outer layer sheet 6 is disposed on the non-skin contact surface side of the back sheet 2. The individual packaging sheet 60 is slightly larger than the outer shape of the napkin 10 and is disposed so as to cover the entire non-skin contact surface of the back sheet 2. The individual wrapping sheet 60 is for individually wrapping the sanitary napkin 10 in a bag shape so that the sanitary napkin 10 is not soiled before use. For example, as shown in FIG. 2, the sanitary napkin 10 is folded in three so as to wrap the surface sheet 1 side, and both ends of the individual packaging sheet 60 are overlapped to form a seal 65 (FIG. )), And the both side edges of the individual packaging sheet 60 are crimped and sealed with embossing or the like (hereinafter, the crimped portion is referred to as a crimped portion 66). On the other hand, when the seal 65 and the crimping portion 66 are unwound and developed from this state, the top sheet 1 as the use surface appears as shown in FIG.

  As shown in FIG. 3, in the state where the napkin 10 is unfolded, the individual packaging sheet 60 has a front-side fixing portion 61 and a rear-side fixing portion 62 at positions on the longitudinal front and rear end sides of the sanitary napkin 10. The front side fixing part 61 and the rear side fixing part 62 are fixed to the back sheet 2 and are not peeled before and after use. Further, the individual packaging sheet 60 includes a front free part 63 and a rear free part 64 that are not fixed to the back sheet 2 between the front fixed part 61 and the rear fixed part 62. As described above, the individual packaging sheet 60 is divided from the front end side of the napkin 10 in the order of the front side fixing portion 61, the front side free portion 63, the rear side free portion 64, and the rear side fixing portion 62. Further, the front free portion 63 and the rear free portion 64 are separated from each other, the front free portion 63 can be folded back toward the front fixing portion 61, and the rear free portion 64 can be folded back toward the rear fixing portion 62. (In FIG. 3, the free parts 63 and 64 in a state where they are expanded in the direction of the arrows are indicated by two-dot chain lines).

  More specifically, the fixed portion and the free portion in the outer layer sheet 6 are partitioned by the front side fixed boundary line 61w and the rear side fixed boundary line 62w, and the free portion 63 is located inward in the longitudinal direction from the fixed boundary lines 61w and 62w. 64, and the outer side in the longitudinal direction as the fixing portions 61 and 62. The front side fixing boundary line 61w and the rear side fixing boundary line 62w, as will be described later, are easy to cover the soiled part of the surface sheet with the fixing part and the free part at the time of disposal, and are easy to stably fix to the clothing or the like at the time of use. Therefore, it can be appropriately determined functionally. The napkin 10 of the present embodiment has an excretory part corresponding region in the center, and the front end part and the rear end part have substantially equal lengths. In this case, both the boundary lines are preferably in the vicinity of the boundary lines at both ends of the napkin 10 that are equally divided so that both the front end portion and the rear end portion can sufficiently cover the excretion portion corresponding region of the topsheet. The excretory part corresponding region is a part that directly receives excretion of menstrual blood, urine, or urine, and the vicinity thereof. Usually, when it is formed on a front and rear object such as a napkin for daytime, the excretory part corresponding region is a central region when the napkin is divided into three equal parts in the longitudinal direction, and the napkin for night covers the buttocks backward It has a left and right wide rear flap and is located in the center of the front side when the napkin is divided into two equal parts in the longitudinal direction. Moreover, regardless of whether it is for daytime or nighttime, when a wing that is bent and fixed to the crotch part of the shorts is provided, both longitudinal regions along the region where the wing exists correspond to the excretion part.

The front side free part 63 and the rear side free part 64 are fixed to the non-skin contact surface side of the back sheet 2 so as to be peelable in the individually packaged state before use (FIG. 2B and FIG. 3). In the present embodiment, the adhesive portions 63a and 64a are disposed on the surfaces of the front free portion 63 and the rear free portion 64 that face the back sheet 2 in the individually packaged state. The back sheet 2 serves as a release paper at the portion where the adhesive portions 63a and 64a are in contact. In use, the front free part 63 is folded back to the front fixed part 61 side, the rear free part 64 is folded back to the rear fixed part 62 side, and the napkin 10 is fixed to the clothes or the like with the adhesive parts 63a and 64a appearing there. can do. The method of fixing the napkin 10 to clothes or the like is not limited to this, and an adhesive portion may be provided on the portion of the back sheet 2 facing the front free portion 63 and the rear free portion 64 before being folded back (not shown). ) In that case, the front free part 63 and the rear free part 64 serve as a release paper. Further, in the individual packaging state, a portion where the front free portion 63 and the rear free portion 64 are in contact may be fastened and fixed with a seal 67. Alternatively, the front free part 63 and the rear free part 64 are partially overlapped, and are fastened and fixed by providing an adhesive on one skin surface side, or by providing a break guide line such as a perforation on one member so as to be separable. Or you may.
In the present invention, the term "fixed" (fixed part) refers to the use (part) of a product without detaching and separating the members from each other and fixing or fastening (fixed part or fastening part) means an adhesive or the like. The members are temporarily joined to each other and can be detached when the product is used, and can be joined to the other members using the adhesive (part).

  In the present invention, unless otherwise specified, the surface in contact with the human body is referred to as the skin side surface or skin contact surface or surface, and the opposite surface is referred to as the non-skin surface or non-skin contact surface or back surface. Of these two surfaces, the side close to the skin side or the extending direction is called the skin side, the skin contact surface side or the surface side, and the side close to the non-skin surface or the extending direction is the non-skin side, non-skin It is called the contact side or the back side. The direction positioned on the front side of the human body when worn is referred to as the front, and its end is referred to as the front end, and the direction positioned on the rear is referred to as the rear, and the end is referred to as the rear end. The normal direction of the front or back surface of the absorbent article is called the thickness direction, and the amount is called thickness. Furthermore, in the plan view of the absorbent article, a direction from the abdominal side to the back side through the crotch is referred to as a vertical direction, and a direction orthogonal to the vertical direction is referred to as a width direction. The vertical direction typically coincides with the front-rear direction of the human body when worn.

  Here, the embodiment of the sanitary napkin 10 of the present embodiment will be described in more detail based on FIGS. 4, 5 and 6 show the processes used in the sanitary napkin 10 of this embodiment in that order. FIG. 4 is a cross-sectional view schematically showing a state before using the sanitary napkin 10 from the width direction of the sanitary napkin. FIG. 5 is a cross-sectional view schematically showing a state in which the sanitary napkin 10 is used from the width direction of the sanitary napkin. FIG. 6 is a cross-sectional view schematically showing the state of the disposal process after use of the sanitary napkin from the width direction of the sanitary napkin, where (a) shows the first stage of disposal and (b) shows the second stage of disposal. Show. FIG. 7 is a perspective view schematically showing the state of the first stage of disposal in FIG. In the drawing, the upper side is the body side (skin surface side), and in FIG. 5, the body is not shown to avoid complication of the drawing. Moreover, for the understanding of the present invention, the top sheet 1 and the back sheet 2 constituting the napkin are not shown, but the whole is shown as a napkin body 10A, and the relationship between the napkin body 10A and the individual packaging sheet 60 is mainly shown. .

  FIG. 4 shows a form that is obtained before use, that is, by the user at the time of purchase. Generally, when a sanitary napkin is purchased, several to several tens are packed in one bag, and further, each sanitary napkin is individually packaged so that it can be carried hygienically. As described above, the individual packaging sheet 60 of this embodiment has a function as an individual packaging body for individually packaging the sanitary napkin 10, and before use, the non-skin contact surface of the sanitary napkin 10 is used. Covers the entire side. The front free portion 63 and the rear free portion 64 are fastened by a seal 67, and the front fixing portion 61 and the rear fixing portion 62 are partially overlapped and fastened by a seal 65. In addition, in FIG. 4, although the back side fixing | fixed part 62 is laminated | stacked and fastened on the front side fixing | fixed part 61, it is not limited to this, A reverse arrangement | positioning may be sufficient.

  Next, with reference to FIG. 5, the form at the time of use of the sanitary napkin 10 is demonstrated. In use, the front free portion 63 is folded back to the non-skin contact surface side of the front fixing portion 61, the rear free portion 64 is folded back to the non-skin contact surface side of the rear fixing portion 62, and the front free portion 63 and the rear side The adhesive portions 63a and 64a applied to the folded surface of the free portion 64 are used by being fixed to the clothing 7 or the like. In this way, the two free parts 63 and 64 are separated on the back sheet side of the napkin 10 and can be folded back to the respective fixing parts side, so that a relatively small individual package can be obtained without first spreading the top sheet side of the napkin 10. It can be fixed to clothes 7 etc. in a state close to the state. In addition, when the position where the two free parts are located is the excretory part corresponding region as in the present embodiment, the position to be fixed based on the size can be easily determined. And it is possible to use it without discarding the individual packaging sheet 60, and generation | occurrence | production of garbage can be suppressed. Furthermore, since the outer layer sheet 6 does not exist in the vicinity of the excretion part, the soft wearing feeling can be maintained with excellent flexibility in the width direction. In addition, at the front end and the rear end of the napkin 10, the front free portion 63 and the front fixing portion 61, the rear free portion 64 and the rear fixing portion 62 are formed in a dogleg shape starting from the fixing boundary lines 61w and 62w, respectively. A non-fixed sheet laminated structure can be obtained. As a result, the sanitary napkin 10 increases in thickness in the abdomen direction on the front end side and in the buttocks direction on the rear end side, so that each fixing portion easily rises, improves the fit to the body, and provides a suitable wearing feeling. .

Furthermore, with reference to FIG. 6, the form which discards the sanitary napkin 10 of this embodiment from the wearing condition mentioned above is demonstrated. The absorbent article of the present invention can dispose of used napkins simply and hygienically due to the structure of the fixing part and the free part.
As a preferable disposal procedure, first, as a first disposal step, the front end portion and the rear end portion of the sanitary napkin 10 are folded back to the topsheet 1 side (see FIGS. 6A and 7). At this time, on the back sheet 2 side, there are a front side fixing part 61 and a rear side fixing part 62 that are not fixed to the clothes 7 and the like, and a napkin can be folded lightly with a finger attached to the part. The excretory part corresponding | compatible area | region of a surface sheet can be covered. If it does in this way, the excreted liquid etc. can not only be shielded quickly, but scattering of the liquid flow etc. to the circumference can be prevented. In the sanitary napkin 10 of this embodiment, the folding back positions are the front fixed boundary line 61w and the rear fixed boundary line 62w, and the front end and the rear end of the sanitary napkin 10 are moved from the boundary line to be accurately folded. Can be obtained. Furthermore, since the above-described operation can be performed without removing the napkin from clothes such as shorts, there is little risk of scattering to hands or clothes. The folding at the time of disposal is not necessarily limited to a specific order, but preferably, the seal 65 may be fixed to the non-skin contact surface side of the front fixing portion 61 by folding back the front end portion and then folding the rear end portion. This is convenient because the napkin will not open during operation even if you take your hand off.

  Then, as the second stage of disposal, the front free part 63 and the rear free part 64 are peeled off from the clothes 7 and folded back to the skin contact surface side. At that time, the front free portion 63 and the rear free portion 64 are brought to face each other and fixed with a seal 67 interposed therebetween (see FIG. 6B). In the present invention, the handle portion 68 can be easily formed on the used sanitary napkin 10 by creating the mated portion in this manner, and can be discarded without touching the dirty portion of the napkin 10. This handle portion 68 is easy to form without difficulty in combination with the easy folding starting from the above-mentioned front side fixing boundary line 61w and the rear side fixing boundary line 62w. Since the handle portion 68 can be easily formed, it is possible to perform a very simple and sanitary napkin replacement operation in addition to the ease of mounting by the above-described free portion. For example, when replacing and discarding new and old napkins at the same time, the used napkin 10 can be easily positioned and mounted without having to widen the new napkin while holding it with two fingers. It is also possible to dispose of hands without getting them dirty. As a result, it is not necessary to temporarily put a used napkin or wrap it in toilet paper, and it has an excellent effect of being extremely simple and hygienic and contributing to dust reduction. The handle 68 is preferably fixed by the seal 67 or the like, but even if it is not fixed, the hand is not soiled because the topsheet 1 is already concealed in the first disposal stage. In other words, even if the hand is once removed from the handle portion 68 at the time of replacing the napkin, the handle portion 68 can be easily formed by picking only the ends of both free portions again without touching the main body of the napkin 10.

The positions of the front end adhering boundary line 61w and the rear end adhering boundary line 62w according to the present embodiment are slightly different depending on the size and application of the absorbent article to be used and are not uniquely determined. However, from the viewpoint of sufficient covering of the surface sheet at the time of disposal, easy positioning at the time of mounting and stable fixing, the outer length of the boundary line 61w is divided by the front side fixing boundary line 61w and the rear side fixing boundary line 62w. Each of the length t ₁ and the length t ₂ outside the boundary line 62w is shorter than the length (t ₃ + t ₄ ) from the front fixed boundary line 61w to the rear fixed boundary line 62w (see FIG. 1). The sum (t ₁ + t ₂ ) of t ₁ and t ₂ is preferably 1 to 2 times the length (t ₃ + t ₄ ) from the front fixed boundary 61w to the rear fixed boundary 62w. Moreover, the concealment property of a surface sheet becomes favorable in the discard 1st stage by setting it as the said range, and a concealment shape can be maintained. In addition, the length ratios (t ₃ / t ₁ ) and (t ₄ / t ₂ ) are each preferably 1 to 1.5. By setting it as the said range, it becomes easy to form the effective handle part 68 in a discard 2nd step. Further, the length ratio (t ₁ / t ₂ ) is 0.6 to 1.4, and the sum of the lengths (t ₁ + t ₂ ) is the length of the rear fixed boundary line 62w from the front fixed boundary line 61w ( and more preferably 1.1 to 1.5 times the _{t 3} + t _4). In this case, when the front end portion or the rear end portion of the outer layer sheet 6 extends outward in the longitudinal direction from the front and rear ends in the longitudinal direction of the napkin 10, the lengths of t ₁ and t ₂ are respectively fixed to the front side. The length from the boundary line 61w to the front end of the exterior sheet 6 is the length from the rear fixed boundary line 62w to the rear end of the outer layer sheet 6 (see FIG. 1), while the front end of the outer layer sheet 6 or When the rear end portion coincides with the front end of the napkin 10 in the longitudinal direction or exists only inward in the longitudinal direction, t ₁ is the length from the front fixing boundary 61w to the front end edge F of the napkin 10, and t ₂ is the rear. The length is from the side fixing boundary line 62w to the rear end edge R of the napkin 10 (see FIG. 9).

  Further, when the outer layer sheet 6 of the present invention is an individual packaging sheet larger than the napkin as in this embodiment, the length of the portion protruding from the napkin width in the width direction of the napkin is preferably 15 mm or less on the left and right sides. It is preferable that there are as few portions as possible from the viewpoint of reducing discomfort at times. The above upper limit is a value that ensures sealing during individual packaging during manufacture.

  FIG. 8 is a perspective view corresponding to FIG. 7 showing another form (modified example) of the outer layer sheet in the sanitary napkin 10 of the present embodiment. The outer layer sheet in this form is a release sheet 60 ′ that is narrower than the individual packaging sheet and covers only the adhesive portion (not shown) of the back sheet. However, also in this release sheet 60 ′, the front and rear ends are formed with a front side fixing portion 61 and a rear side fixing portion 62 that are firmly fixed to the back surface sheet 2. And in the meantime, it becomes the front free part 63 and the rear free part 64 which can peel from the adhesion part of the back surface sheet 2. FIG. Therefore, as shown in FIG. 8, at the time of use, like the individual packaging sheet 60, the free parts 63 and 64 are folded back to the fixing parts 61 and 62, respectively, and are fixed to the clothing 7 or the like. Similarly, at the time of disposal, a two-stage process can be performed in which the top sheet is covered from the fixing parts 61 and 62 side, and then the handle part is formed by the free parts 63 and 64 (not shown). Therefore, also in this modified example, as with the individual packaging sheet 60 of the present embodiment, there is an excellent effect that it can be disposed of very easily and hygienically and the labor of replacement can be reduced. In addition, the form of the individual packaging in this case is possible by further covering the outer side of the release sheet 60 'with an individual packaging sheet. However, considering that the napkin can be easily replaced by opening only the free part and attaching it to clothes before opening the seal 65 and developing the top sheet of the napkin, the outer sheet is an individual packaging sheet. The above-described embodiment is preferable.

From the viewpoint of stably fixing the napkin at the time of mounting and exhibiting the same effect as the individual packaging sheet, the ratio (h ₁ /) of the width (h ₁ ) of the release sheet 60 ′ as the outer layer sheet and the maximum width (h ₂ ) of the napkin 20 h ₂ ) is preferably 1/2 to 1/1, and more preferably 1/2 to 3/4.

FIG. 9 is a plan view schematically showing the sanitary napkin 20 from the non-skin contact surface side as another preferred embodiment of the present invention. The sanitary napkin 20 has a rear portion enlarged to obtain sufficient absorbency such as for night use. In addition, the outer layer sheet in the sanitary napkin 20 is a release sheet 60 ′ that is narrower than the napkin. In this embodiment, the outer layer sheet 6 is not limited to the release sheet 60 ′ but may be a wide individual packaging sheet 60.
In the sanitary napkin 20 of the present embodiment, the length (t ₄ ) of the rear free portion 64 and the outer side of the rear fixing boundary line 62w outward so that the top sheet can be covered as much as possible at the rear end side when discarded. It is preferable to take a sufficient length (t ₂ ). Further, when the rear side fixing portion 62 is folded in the longitudinal direction when it is folded to the top sheet side, a folding boundary line 20v is provided as necessary so that the tips of the napkin 30 and the rear side fixing portion 62 can be more easily folded. Is preferred. Most preferably, the rear-side fixing part 62 does not protrude in the longitudinal direction when folded to the topsheet side. However, when 20v is provided, the length (t ₂₎ outside the rear-side fixing boundary line 62w. ) Is provided so that the length (t ₂₁ ) from the boundary line 62w to 20v is substantially the same as the length (t ₃ + t ₄ ) from the front fixed boundary line 61w to the rear fixed boundary line 62w. It is preferable. Furthermore, it is preferable that the back side fixed boundary line 62w is behind the excretory part corresponding | compatible area | region. At this time, if the front and rear fixing portions 61 and 62 is shorter than the napkin longitudinal direction of the tip, the length t ₁ of the front fixing border 61w until the front edge F of the napkin length, the rear fixing boundary length t ₂ The length is from the line 62w to the rear edge R of the napkin. When the front and rear fixing portions 61 and 62 are longer than the tip in the napkin longitudinal direction, the lengths t ₁ and t ₂ are the lengths of the fixing portions, respectively.

  As described above, also in the sanitary napkin 20 of the present embodiment, like the sanitary napkin 10 described above, the free part can be folded back to the fixing part side and firmly fixed to the clothes, etc. Covering the surface sheet, the free part becomes the handle part and can be processed in two stages, and can be disposed of in a sanitary manner. That is, the sanitary napkin 20 also has an excellent effect that it can be disposed of very easily and hygienically, and the labor of replacement can be reduced. In addition, there is an effect of reducing the backward movement at bedtime by improving the fit between the rear region of the human body and the napkin when worn.

  As a material of the outer layer sheet, a conventionally known material can be used without particular limitation. For example, a nonwoven fabric, a resin film, paper, these laminated bodies, etc. can be used. Preferably, a non-fixed sheet laminated structure in which the free part and the adhering part are in a U-shape at the time of wearing, so that the fit between the napkin and the body is improved and the wearing feeling is suitable, and the feeling of strangeness at the time of wearing. It is good to consider flexibility for reduction. In particular, the individual packaging sheet is preferably a nonwoven fabric such as spunbond or air-through from the viewpoint of flexibility, and the release sheet is preferably a laminate of paper, paper and nonwoven fabric or film from the viewpoint of rigidity.

  The top sheet 1 is a liquid-permeable sheet such as various non-woven fabrics and perforated films that have been subjected to a hydrophilization treatment from the viewpoint of promptly absorbing the excreted body fluid and transmitting it to the absorber and the good touch. It is preferable to use it. The topsheet 1 is preferably a thermoplastic resin fiber that has been subjected to a hydrophilic treatment, and the fiber is a fiber that has undergone a three-dimensional crimp such as a secondary crimp or a tertiary crimp. Specifically, polyethylene, polypropylene, polyester, nylon, and composite fibers thereof are prepared, and various hydrophilizing agents are applied at a stage before cutting into a predetermined length to form staples. Hydrophilic agents include various alkyl sulfonates represented by α-olefin sulfonates, acrylates, acrylate / acrylamide copolymers, ester amides, ester amide salts, polyethylene glycol and derivatives thereof, water-soluble Hydrophilic treatment with a hydrophilizing agent known to those skilled in the art, such as a reactive polyester resin, various silicone derivatives, various sugar derivatives, and mixtures thereof, can be used.

  Although there is no restriction | limiting in particular as a constituent material of the absorber 3, A fiber material, a porous body, what sandwiched only the porous body with paper or a nonwoven fabric, etc. can be used. Examples of the fiber material include natural fibers such as wood pulp, cotton and hemp, polyolefin resins such as polyethylene and polypropylene, polyester resins such as polyethylene terephthalate, and single fibers made of synthetic resins such as polyvinyl alcohol resin, and these resins. Bisynthetic fibers containing two or more of them, and semisynthetic fibers such as acetate and rayon can be used. When using a fiber made of a synthetic fiber, the fiber may be a heat-shrinkable fiber whose shape changes due to heat. For example, the fineness is increased by heat but the fiber length is shortened, and the fineness is hardly changed by heat, but the length occupied by the apparent fiber is shortened by changing the shape to a coil shape. Also good. As the porous body, sponge, non-woven fabric, aggregate of superabsorbent polymer (aggregate of superabsorbent polymer and fiber) and the like can be used.

The back sheet 2 may be a moisture-impermeable or moisture-permeable film alone, or a laminate of a film and a nonwoven fabric, or a water-repellent nonwoven fabric (such as SMS or SMMS). From the standpoint of cost and matching with an anti-displacement adhesive, it is most preferable to use a moisture permeable film alone as a leak-proof material. In this case, as the moisture permeable film material, a film obtained by melt-kneading a thermoplastic resin and an inorganic filler not compatible with the thermoplastic resin and extruding the film to a predetermined dimension, or essentially, In addition, a non-porous film having high water compatibility and capable of discharging water vapor, such as a permeable membrane, can be used. In order to realize a leak-proof layer that sufficiently exhibits the performance of moisture discharge related to the present invention and does not ooze out moisture, the moisture permeability should be in the range of 0.7 to 3.0 g / 100 cm ² hr. Is preferable, and it is still more preferable that it exists in the range of 1.0-2.5. From the standpoint of sufficiently improving the smoothness, it is most preferably from 1.5 to 2.5. Moreover, in order to be able to use without trouble, such as a tear of a film, a film basic weight is 18-70 g / m < ² >, More preferably, it is 25-60 g / m < ² >. Moreover, a preferable inorganic filler compounding quantity is 30-65 mass% as a mass% of the filler with respect to the mass of the whole film, More preferably, it is 40-60 mass%.

  In the absorbent article of the present invention, the outer layer sheet is not limited to the individual packaging sheet and the release sheet as long as it has the above-described function, and may have various forms, and other functions are added. It may be a thing. For example, in the case of a urine collecting pad used in combination with a diaper, the adhesive surface includes a surface fastener.

  The absorbent article of the present invention is not limited to the above-described embodiment, and includes various forms as long as the absorbent article is mounted in the longitudinal direction from the wearer's crotch. For example, the present invention can be applied not only to sanitary napkins but also to those attached to the crotch portion of underwear such as incontinence pads and incontinence liners.

Moreover, although the outer layer sheet 6 and the back surface sheet 2 were fixed in the entire fixing portion in the above-described embodiment, the portion where the outer layer sheet 6 and the back sheet 2 are fixed in the region to be the fixing portion. The sheet is fixed only at the front fixing area 61S and / or the rear fixing area 62S, and the other sheets may not be fixed to each other. For example, a configuration in which a plurality of fixing regions 61S and 62S are arranged intermittently so as to sandwich a non-fixing region along the longitudinal direction (Y direction) in the fixing portions 61 and 62 (see FIG. 10). . As another example, the outer layer sheet 6 and the back sheet 2 are not fixed in a range from the front edge F or the rear edge R to a predetermined length inward in the longitudinal direction (Y direction) of the napkin 10. The two sheets may be fixed by the fixing regions 61p and 62p between the fixing boundary line and the non-fixing part region (see FIG. 11). 10 and 11 show the ranges of the above-mentioned fixing regions that extend in the plane direction of the article. The fixed region is a region where a laminated portion of the outer layer sheet 6 and the back sheet 2 is joined in that range when viewed in the thickness direction of the article (not shown).
In these cases, the arrangement lengths u ₅ and u ₆ from the frontmost part to the rearmost part of the fixing region in the front and rear fixing parts 61 and 62 in the longitudinal direction (Y direction) are the napkin 10 from the front fixing boundary line 61w. preferably the length u ₁ and up to the front edge F, from the rear fixed boundary line 62w to the rear edge R of the napkin 10 is 2 or more in length u ₂ 3 minutes, also most of the anchoring region It is preferable that the large h ₂ has one half or more of the fixing portion width h ₁ . For example, the arrangement length is _two- thirds of u ₁ or u ₂ from the adhering boundary lines 61w and 62w toward the front and rear ends of the napkin, and the width is two-thirds of the adhering portion width, respectively. That includes a rectangular fixing region. The inner edges in the longitudinal direction of the front side fixing region 61S and the rear side fixing region 62S become fixing boundary lines 61w and 62w.

  Further, the length of the absorbent article and the outer shape of the article are not limited. For example, in addition to the top sheet 1, the absorbent body 3, and the back sheet 2, members may be appropriately incorporated or the shape may be changed according to the application and function. Moreover, it is not limited to the presence or absence of a wing, The form which provides a wing part in the width direction outer side of an absorbent article and fixes to clothing etc. may be taken, The form can also employ | adopt arbitrary forms. In addition, the material of the top sheet 1, the absorber 3 and the back sheet 2 of the absorbent article of the above embodiment, the conditions in the manufacturing method, and the dimensional terms of the product are not particularly limited, and are used in ordinary absorbent articles. Various materials can be used.

DESCRIPTION OF SYMBOLS 1 Top sheet 2 Back sheet 3 Absorber 6 Outer sheet (Individual packaging sheet 60, release sheet 60 ')
61 front side fixing part 62 rear side fixing part 63 front side free part 64 rear side free part 7 clothing 10,20 sanitary napkin

Claims (8)

A vertically long absorbent article having a liquid-permeable surface sheet disposed on the skin contact surface side, a back sheet disposed on the non-skin contact surface side, and an absorber disposed between the two sheets. And
An outer layer sheet is disposed on the non-skin contact surface side of the back sheet, and the outer layer sheet has a fixed portion fixed to the absorbent article main body and a free portion not fixed, and the fixed portion is are arranged in the longitudinal direction of the front and rear end side of the absorbent article main body, said free portion is arranged between the anchoring part, the free part, separated into two in the longitudinal length direction of the front and rear ends Absorbent articles arranged so as to be foldable toward the respective fixing portions.   Can be fixed to clothes on the non-skin contact surface of the free part when the free part is folded back toward the front and rear ends in the longitudinal direction, or the non-skin contact surface of the back sheet exposed by folding the free part The absorbent article according to claim 1, further comprising an adhesive part.   When the absorbent article is discarded, the fixing part of the outer layer sheet covers the excretion part corresponding region of the top sheet by folding the longitudinal front and rear ends of the absorbent article body to the top sheet side. The absorbent article according to 1 or 2. The free portion is capable further covering the surface sheet side from the article longitudinal front and rear ends, said free ends of the front side and the rear side, of the waste package facing above said topsheet The absorptive article according to any one of claims 1 to 3 used as a handle part.   The absorbent article according to any one of claims 1 to 4, wherein the outer layer sheet is an individual packaging sheet for the absorbent article.   The absorbent article of any one of Claims 1-5 which has a pair of wing part in the right-and-left both-sides edge part of the longitudinal direction of the said absorbent article. The absorbent article according to prior Symbol the two free portions, any one of claims 1 to 6 are detachably joined in portions facing each other. The absorbent article according to any one of claims 1 to 7, wherein the absorbent article is a sanitary napkin, an incontinence pad or a urine collecting pad.

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