JP4530930B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article comprising an absorbent article main body and a small auxiliary absorbent pad attached on the topsheet.

  Various absorbent articles having a shape in which the central portion on the topsheet side is raised have been proposed for the purpose of increasing the fit and leakage prevention properties of absorbent articles such as sanitary napkins and the absorption capacity. Apart from this type of absorbent article, a proposal has been made to achieve the same effect by using a small auxiliary absorbent pad in combination with the absorbent article and mounting the pad so as to contact the excretory part of the user. Yes. For example, a so-called interlabial pad that is sandwiched and held between the labia is known (see Patent Document 1).

  The interlabial pad can be used alone, but as described above, it is often used in combination with a normal sanitary napkin. In the latter case, the napkin is attached to the shorts while the pad is worn directly between the user's labia. Since this part is a blind spot as seen from the wearer, care must be taken to attach the pad to an appropriate position.

  For the purpose of making it easier to understand the attachment position of the interlabial pad, it has been proposed to provide a guide element consisting of a pressing groove on the surface sheet side of the napkin and attach the pad to the napkin using the pressing groove as a guide (Patent Document) 2). Specifically, it has been proposed to form a pair of parallel linear compression grooves extending in the longitudinal direction of the napkin and to attach a pad between the compression grooves.

  However, since there are individual differences in the position of the excretory part, it is not easy to securely put the pad between the labia if the pad is attached using the guide element uniformly provided on the napkin as a guide.

International Publication WO2002 / 094150 Pamphlet JP 2003-38564 A

  Therefore, the objective of this invention is providing the absorbent article which can eliminate the fault which the prior art mentioned above has.

The present invention is an absorbent article comprising an absorbent article main body and a small pad, wherein the small pad is attached to a top sheet of the main body,
The main body is provided with a position display means serving as a guide for the mounting position of the small pad, and when the small pad attached on the top sheet of the main body is removed from the main body, The means for leaving the attachment mark of the small pad on the surface sheet achieves the object by providing an absorbent article provided on the small pad.

  According to the present invention, since the trace of the small pad properly attached to the excretion site remains on the absorbent article main body side, the pad is used if the second and subsequent pads are attached to the main body based on the trace. Even if it is not directly attached to a person's excretion site, the pad can be properly and reliably guided to the excretion site.

  The present invention will be described below based on preferred embodiments with reference to the drawings. FIG. 1 shows a perspective view of an embodiment of the absorbent article of the present invention. The absorbent article 10 of this embodiment includes an absorbent article body 20 and a small auxiliary absorbent pad 30. The main body 20 includes a top sheet 21 located on the side close to the user's skin, a back sheet (not shown) located on the side far from the skin, and an absorbent core (not shown) interposed between the two sheets. is doing. If necessary, the main body 20 may be provided with wings extending laterally from left and right side edges extending in the longitudinal direction. Such a configuration is basically the same as a normal sanitary napkin or panty liner. Therefore, as the surface sheet 21, a sheet material having liquid permeability, for example, various nonwoven fabrics, perforated films, composite materials thereof, and the like are used. As the back sheet, a liquid-impermeable film, a non-woven fabric having water repellency, a composite material thereof, or the like is used. The back sheet may have water vapor permeability. An adhesive for fixing the main body 20 to the user's shorts may be applied to the outer surface of the back sheet. As the absorbent core, a pile of fluff pulp and a superabsorbent polymer, an absorbent paper containing a superabsorbent polymer, a bulky nonwoven fabric with liquid retention, and the like are used.

  On the other hand, the pad 30 is used for assisting the liquid absorption capability of the main body 20 and is attached on the top sheet 21 of the main body 20. The pad 30 includes a top sheet 31 positioned on the side close to the user's skin, a back sheet positioned on the side far from the skin, and an absorbent core interposed between the sheets. As the constituent material of the top sheet 31, the back sheet, and the absorbent core, the same constituent materials as those of the main body 20 described above can be used. An adhesive for fixing the pad 30 onto the top sheet 21 of the main body 20 may be applied to the outer surface of the back sheet of the pad 30 as necessary.

  On the surface sheet 21 side of the main body 20, position display means 22 is provided which serves as a guide for the attachment position of the pad 30. As the position display means 22, four sets of curved lines that are symmetrical with respect to the horizontal center line that bisects the main body 20 in the front-rear direction are used. The curve located in the front half of the main body 20 has a convex shape toward the front end side of the main body 20. On the other hand, the curve located in the rear half of the main body 20 has a convex shape toward the rear end side of the main body 20. The curve located in the front half of the main body 20 is numbered at the center. The numbers are given as 1, 2, 3, 4 in order from the front end side. In addition to numbers, it is possible to use easy-to-recognize and easy-to-store displays such as alphabets and circles.

  The position display means 22 may be a squeezed part formed by squeezing the main body 20 from the top sheet 21 side using, for example, an embossing device. Further, the position display means 22 may be a printing unit applied to the top sheet 21 of the main body 20. Or it may be a combination of these. Thus, the type of the position display means 22 is not particularly limited as long as it can visually recognize the mounting position of the pad 30 on the main body 20.

  In the present embodiment, the main body 20 is provided with the position display means 22 described above, and the pad 30 is also devised. Specifically, when the pad 30 attached on the top sheet 21 of the main body 20 is removed from the main body 20, means for leaving a pad 30 attachment mark on the top sheet 21 of the main body 20 includes: It is provided on the back sheet side of the pad 30.

  As the means provided in the pad 30, in this embodiment, as shown in FIG. 2, a small hole 32 formed in the back sheet 31 of the pad 30 is used. In this embodiment, the back sheet 31 of the pad 30 is liquid-impermeable or water-repellent. Therefore, when the main body 20 and the pad 30 are mounted in combination, a part of the excretory liquid absorbed by the pad 30 reaches the top sheet 21 of the main body 20 through the small holes 32. As a result, spot-like absorption traces 11 of the excretory liquid are left on the top sheet 21 of the main body 20. This absorption trace 11 becomes the attachment trace of the pad 30 described above.

The usage method of the absorbent article 10 of this embodiment is as follows.
(1) First, when the absorbent article 10 is used for the first time, the main body 20 is attached and fixed to the crotch part of the shorts by the same usage as a normal sanitary napkin. On the other hand, the pad 30 is not attached to the main body 20 but directly attached to the excretion site of the user. For example, when the pad 30 is an interlabial pad, the pad 30 is sandwiched and held between the user's labia. Under the state where the pad 30 is attached to the user's excretion site, the shorts to which the main body 20 is attached are pulled up. Thereby, the mounting state of the absorbent article 10 as a whole is completed. When the adhesive is applied to the outer surface of the back sheet 31 of the pad 30, the pad 30 is fixed to the main body 20 when the mounting state is completed. In this state, the pad 30 is fixed to the main body 20 in a state where the pad 30 is reliably positioned at the excretion site of the user.

  If there is excretion during the wearing of the absorbent article 10, the excretion fluid is mainly absorbed by the pad 30. The main body 20 absorbs liquid that was not absorbed by the pad 30 and liquid leaked from the pad 30. As described above, in the absorbent article 10 of the present embodiment, the pad 30 mainly absorbs the liquid, so that the main body 20 is less likely to be contaminated with excretory liquid than the pad 30. Therefore, instead of replacing the main body 20 every time the pad 30 is replaced, the main body 20 may be replaced once every time the pad 30 is replaced several times.

  When the pad 30 absorbs the liquid and the replacement time has come, the shorts are lowered and the pad 30 is removed from the main body 20. At this time, the attachment position of the pad 30 in the main body 20 is memorized with reference to the position display means 22 provided in the main body 20.

  As described above, the small holes 32 are provided in the back sheet 31 of the pad 30. Accordingly, a part of the liquid absorbed by the absorbent core of the pad 30 leaks through the small holes 30 and reaches the top sheet 21 of the main body 20. As a result, spot-like absorption marks 11 are formed on the topsheet 21 of the main body 20 after the pad 30 is removed.

  (2) Next, the pad 30 that has absorbed the liquid is discarded and a new pad 30 is attached. In this case, the new pad 30 is not directly attached to the user's excretion site, but attached to the top sheet 21 of the main body 20. At the time of attachment, the new pad 30 is aligned so that the small holes 32 of the back sheet 31 in the new pad 30 coincide with the absorption marks 11 formed on the top sheet 21 of the main body 20. At the same time, the new pad 30 is aligned with the position of the position display means remembered when the pad 30 that has absorbed the liquid is removed from the main body. With the two alignments, the pad 30 is securely aligned, and when the pad 30 is fixed on the top sheet 21 of the main body 20, the shorts to which the main body 20 is fixed are pulled up. Thereby, the mounting state of the absorbent article 10 is completed. The newly attached pad 30 is attached to approximately the same position as the previously attached pad 30, that is, the position where the pad 30 reliably contacts the excretion site of the user. The pad 30 comes into contact with the user's excretion site with certainty.

  (3) The replacement of the pad 30 after the next time may be performed in the same manner as the replacement of the pad 30 for the second time. In this way, until the main body 20 is replaced, it is not necessary to directly attach the pad 30 to the user's excretion site when the pad 30 is replaced for the second and subsequent times. This is extremely advantageous in that the pad 30 is reliably positioned at the excretion site of the user without putting a physical burden on the wearer.

  In addition to the above advantageous effects, according to the absorbent article 10 of the present embodiment, the effect of using the main body 20 and the pad 30 in combination, that is, (a) the pad 30 is in close contact with the excretion site, thereby excreting. It is possible to prevent the leaked liquid from leaking along the body surface, and (b) to improve the absorption capacity of the absorbent article 10 as a whole.

  Next, second and third embodiments of the present invention will be described with reference to FIGS. For these embodiments, only the points different from the first embodiment will be described, and for the points that are not particularly described, the description in detail regarding the first embodiment is applied as appropriate. 3 and 4, the same members as those in FIGS. 1 and 2 are denoted by the same reference numerals.

  In the second embodiment shown in FIG. 3, the means provided on the back sheet 31 side of the pad 30 includes a back sheet 31 and an adhesive applied to the outer surface of the back sheet 31. As the pressure-sensitive adhesive, a material having strong adhesion to the back sheet 31 and the top sheet 21 of the main body 20 is used. The degree of adhesive strength is that when the pad 30 is removed from the main body after the pad 30 is fixed to the top sheet 21 of the main body 20 and a normal mounting pressure is applied, the adhesive strength between the adhesive and the top sheet 21 of the main body 20 The adhesive strength between the adhesive and the back sheet 31 of the pad 30 is higher than the breaking strength of the back sheet 31 of the pad 30. Since the adhesive strength of the adhesive and the breaking strength of the back sheet 31 of the pad 30 are in such a relationship, when the pad 30 is removed from the main body 20, the back sheet 31 of the pad 30 breaks, A part thereof remains on the top sheet 21 of the main body 20 as shown in FIG. As described above, in this embodiment, the back sheet 31 partially broken and left on the top sheet 21 of the main body 20 becomes an attachment trace of the pad 30.

  In addition to this, as a form that makes it easy to apply the next pad 30, there are a form in which only the back sheet 31 at the longitudinal front and rear ends and the left and right side edges in the width direction remains, and a form in which the back sheet 31 remains in a cross shape. It is done. Furthermore, the form which the peripheral part of the back surface sheet 31 remains in ring shape is mentioned. Thus, it is preferable that the back sheet 31 remains on the top sheet 21 of the main body 20 in such a form that the external shape of the pad 30 can be estimated. For this purpose, (a) the adhesive is applied to the part to be left in the back sheet 31, (b) the adhesive application amount or type of the part to be left in the back sheet 31 is changed, and (c) in the back sheet 31. The strength of the part to be left is reduced in advance (specifically, a thin part is formed on the back sheet 31 with a seal or the like, or the back sheet 31 is not bonded to the absorbent core of the pad 30). Such means can be adopted.

  Also in the third embodiment shown in FIG. 4, the means provided on the back sheet 31 side of the pad 30 includes a back sheet 31 and an adhesive applied to the outer surface of the back sheet 31. However, a pressure-sensitive adhesive having characteristics different from that used in the second embodiment is used. The pressure-sensitive adhesive used in the present embodiment is different in the pressure-sensitive adhesive force to the top sheet 21 of the main body 20 and the pressure-sensitive adhesive force to the back sheet 31 of the pad 30. Specifically, when the pad 30 is removed from the main body after the pad 30 is fixed to the top sheet 21 of the main body 20 and a normal mounting pressure is applied, the adhesive force between the adhesive and the top sheet 21 of the main body 20 However, the adhesive strength between the adhesive and the back sheet 31 of the pad 30 is higher. The breaking strength of the back sheet 31 of the pad 30 is sufficiently higher than these adhesive strengths. As a result, when the pad 30 is removed from the main body 20, a part of the adhesive 33 remains on the top sheet 21 of the main body 20 as shown in FIG. 4. Thus, in the present embodiment, the adhesive 33 remaining on the top sheet 21 of the main body 20 becomes an attachment trace of the pad 30. It is preferable that the adhesive remains so as to include the peripheral portion of the pad 30 so that the mounting position of the next pad 30 can be easily understood. Moreover, it is preferable that the adhesive 33 is colored so that the adhesive 33 stands out on the top sheet 21 of the main body 20. Colored in this case means that the main surface sheet 21 is colored in a color different from the color (usually white).

  The absorbent article 10 of 2nd and 3rd embodiment is also used similarly to the absorbent article of 1st Embodiment. That is, when the absorbent article 10 is used for the first time, the main body 20 is attached and fixed to the crotch part of the shorts by the same usage as a normal sanitary napkin. On the other hand, the pad 30 is not attached to the main body 20 but directly attached to the excretion site of the user. When the pad 30 that has absorbed the liquid is discarded and a new pad 30 is mounted, the new pad 30 remains on the back sheet 31 (in the case of the second embodiment) remaining on the top sheet 21 of the main body 20 or the main body. The new pad 30 is aligned so as to coincide with the adhesive 33 (in the case of the third embodiment) remaining on the 20 topsheets 21. At the same time, the new pad 30 is aligned with the position of the position display means remembered when the pad 30 that has absorbed the liquid is removed from the main body. After the positioning of the pad 30 is performed securely and the pad 30 is fixed on the top sheet 21 of the main body 20, the shorts to which the main body 20 is fixed are pulled up. Thereby, the mounting state of the absorbent article 10 is completed. As a result, also in the second and third embodiments, similarly to the first embodiment, the newly attached pad 30 reliably contacts the user's excretion site.

  FIGS. 5A to 5D show a mode of position display means other than the position display means 22 shown in FIGS. 1 to 4. The position display means 22a shown in FIG. 5A is the same as that formed in the front end side half of the main body 20 in the position display means 22 shown in FIGS. In FIG. 5B, four curved position display means 22 b are formed on the rear end half of the main body 20. The curved line has a convex shape toward the rear end side of the main body 20. In each curve, different figures are formed at the center. In FIG.5 (c), the position display means is comprised from the aggregate | assembly of a dot. An ellipse is formed by an aggregate of dots. The position display means is composed of three types of ellipses 22c, 22d, and 22e having different dot diameters. Each ellipse has the same minor axis and a different major axis. The positions of the centers of the ellipses are also different from each other. In addition, a line that is easy to store and select, such as a patterned line such as a one-dot broken line, is preferably used.

  The position display means of the mode shown in FIGS. 5A to 5C is a guide for the position where the pad 30 is attached in the front-rear direction of the main body 20. On the other hand, the mode shown in FIG. 5 (d) is a guide for the position where the pad 30 is attached in the left-right direction of the main body 20. Specifically, three sets (22f, 22g, 22h) of position display means are used, each of which includes a pair of symmetrical curves that are curved toward an imaginary line extending in the longitudinal direction of the main body 20. Each set of position display means has the same curvature and length, but is distinguished by whether the curve is continuous or intermittent. In the position display means 22f, a collection of intermittent dotted lines forms a curve. The position display means 22g consists of a continuous curve. In the position display means 22h, a group of intermittent dots forms a curve. Each set of position display means is formed at the same position in the longitudinal direction of the main body 20. However, the width direction of the main body 20 is formed so as to be deviated from each other. In the position display means 22g, the symmetry axis of the pair of curves coincides with the vertical center line of the main body 20. In the position display means 22 f, the symmetry axis of the pair of curves is displaced to the left from the longitudinal center line of the main body 20. In the position display means 22h, the symmetry axis of the pair of curves is displaced to the right from the longitudinal center line of the main body 20. Note that a plurality of display means may be formed as long as each display is clear, but 3 to 5 sets are preferable from the viewpoint of ease of selection and display clarity.

  As described above, as shown in FIGS. 5A to 5D and FIGS. 1 to 4 described above, the mode of the position display means provided on the top sheet 21 side of the main body 20 is not particularly limited. , Various shapes such as graphics or symbols or combinations thereof.

  As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment. For example, as the means provided on the back sheet 31 side of the pad 30, in addition to the means of the above-described embodiment, a medicine that colors the top sheet 21 of the main body 20 by sweating, heat generation, friction, or the like is used. A material applied to the outer surface of the back sheet 31 can also be used.

It is a perspective view showing one embodiment of an absorptive article of the present invention. It is a perspective view which shows the state in which the attachment trace of a small pad is left on the surface sheet of an absorbent article main body. It is a perspective view which shows another state in which the attachment trace of a small pad is left on the surface sheet of an absorbent article main body. It is a perspective view which shows another state in which the attachment trace of a small pad is left on the surface sheet of an absorbent article main body. It is a schematic diagram which shows the various aspects of the position display means formed in the surface sheet side of an absorptive main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Absorbent article 11 Absorption trace 20 Absorbent article main body 21 Top sheet 22 Position display means 30 Small pad 31 Back sheet 32 Small hole 33 Adhesive

Claims (6)

An absorbent article comprising an absorbent article main body and a small pad, wherein the small pad is attached on a surface sheet of the main body,
The main body is provided with a position display means serving as a guide for the mounting position of the small pad. Means for attaching the small pad to the surface sheet is provided on the small pad ,
The means provided on the small pad comprises a back sheet and an adhesive applied to the outer surface of the back sheet, and when the small pad is removed from the main body, the adhesive is applied to the top sheet by the adhesive. An absorbent article in which the adhered back sheet is broken so that at least a part of the back sheet remains on the top sheet of the main body in a form in which the outer shape of the small pad can be estimated . An absorbent article comprising an absorbent article main body and a small pad, wherein the small pad is attached on a surface sheet of the main body,
The main body is provided with a position display means serving as a guide for the mounting position of the small pad, and
The small pad is provided with means for leaving an attachment mark of the small pad on the surface sheet when the small pad attached to the surface sheet of the main body is removed from the main body,
The means provided on the small pad comprises a back sheet and a colored adhesive applied to the outer surface of the back sheet, and a part of the adhesive is removed when the small pad is removed from the main body. The absorbent article is adapted to remain on the face sheet so as to include a peripheral portion of the small pad. The adhesive force between the adhesive and the top sheet of the main body, and the adhesive force between the adhesive and the back sheet of the small pad 30 are higher than the breaking strength of the back sheet of the small pad. The absorbent article as described. The adhesive force between the adhesive and the top sheet of the main body is higher than the adhesive force between the adhesive and the back sheet of the small pad, and
The absorptive article according to claim 2 whose breaking strength of the back sheet of said small pad is higher than these adhesive powers.   The absorbent article according to any one of claims 1 to 4, wherein the small pad is used by being inserted and held between the labia.   The position display means provided on the main body is composed of a pressing part formed by pressing the main body from the top sheet side, a printing part applied to the top sheet, or a combination thereof. The absorbent article according to any one of claims 1 to 5, wherein the absorbent article has a shape of a symbol or a combination thereof.

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