JP2005177074A - Absorbing aid for tampon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorbing aid for a tampon being non-bulky before use, well fitted to the body in use, and surely absorbing the menstrual blood leaked from the tampon. <P>SOLUTION: This sheet type absorbing aid 1 for the tampon has the longitudinal direction and the width direction orthogonally crossing thereto. This aid is provided with a fixing material 5 joiningly fixing liquid impermeable layers together at a position near a longitudinal one end on the surface of the liquid impermeable layer. The fixing material 5 joiningly fixes the liquid impermeable layers, so that a projection 14 projecting toward the liquid permeable layer side is formed at the position near one end, and the aid whole body is formed into a recess shape. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a tampon absorption aid used in combination with a sanitary tampon.

  Absorption pads are known that are intended to absorb menstrual blood that leaks from the tampon while the sanitary tampon is being worn. For example, an absorption pad is proposed that has a flat absorbent pad main body, an insertion portion that penetrates from the front surface side to the back surface side is formed in the pad main body, and a string that extends from the tampon can be inserted into the insertion portion. (See Patent Document 1).

  Further, the absorbent pad has an absorbent pad main body, and is provided with a ridge extending in the vertical direction on the upper surface of the pad main body, and a string extending from the tampon can be locked to the pad main body. Has also been proposed (see Patent Document 2).

JP 2002-153511 A JP 2003-24374 A

  However, since the absorption pad described in Patent Document 1 is flat, when it is worn, the fit with the body is inferior, and menstrual blood leaking from the tampon may not be reliably absorbed. On the other hand, in the absorbent pad described in Patent Document 2, the raised portions are in close contact between the labia, but conversely, the close contact tends to cause discomfort. Moreover, although the adhesiveness with a body is good about the part in which a protruding part exists, about the other part, there is a possibility that menstrual blood leaking from a tampon may not be absorbed reliably with low adhesiveness. Furthermore, since this absorbent pad has a three-dimensional shape before use, it becomes bulky when a plurality of the absorbent pads are packed.

  Accordingly, an object of the present invention is to provide an absorption aid for a tampon that is free from various drawbacks of the prior art described above.

The present invention is a sheet-shaped absorption aid for a tampon having a liquid permeable layer and a liquid impermeable layer, and having a longitudinal direction and a width direction perpendicular thereto,
At the position near one end in the longitudinal direction on the surface of the liquid impervious layer, it has a fixing material that joins and fixes the liquid impervious layers,
By fixing the liquid-impermeable layers to each other by the fixing material, a convex portion directed toward the liquid-permeable layer is formed at a position near the one end, and the entire assisting device has a concave shape. This object is achieved by providing an absorption aid for tampon.

  The absorption aid for tampon of the present invention is in the form of a sheet before use and is formed into a three-dimensional shape at the time of use. Can be absorbed. In addition, a sense of incongruity is not easily generated.

  The present invention will be described below based on preferred embodiments with reference to the drawings. 1A and 1B show a first embodiment of a tampon absorption aid (hereinafter also simply referred to as an aid) of the present invention. The auxiliary tool 1 shown in FIG. 1 is a round and vertically long one, and has a longitudinal direction and a width direction perpendicular thereto. The auxiliary tool 1 has a first end portion 11 and a second end portion 12 in its longitudinal direction. Of the two end portions, the first end portion 11 has a shape in which the central portion in the width direction is constricted inward to form a constricted portion 11a. The constricted portion 11 a substantially coincides with the position of the center line in the longitudinal direction of the auxiliary tool 1. Thus, the auxiliary tool 1 has a pair of ear pieces 13 and 13 on the first end portion 11 side. The auxiliary tool 1 is symmetrical with respect to the longitudinal center line L. However, the center line in the width direction is not symmetrical.

  As shown in FIG. 1 (a), the auxiliary tool 1 includes a liquid-permeable sheet 2 as a liquid-permeable layer, a liquid-impermeable sheet 3 as a liquid-impermeable layer, and a liquid disposed between both sheets. And a retaining absorbent body 4. These three members have substantially the same shape, and the peripheral parts of the three members are joined and fixed to each other to form a sheet-like auxiliary tool 1. The auxiliary tool 1 is used so that the liquid-permeable sheet 2 faces the wearer's body and the liquid-impermeable sheet 3 faces the clothes.

  As shown in FIG. 1B, the auxiliary tool 1 has a fixing material 5 at the position of one ear piece on the surface of the liquid-impermeable sheet 3. This position corresponds to a position near one end in the longitudinal direction of the auxiliary tool 1 and deviated in the width direction with respect to the longitudinal center line L. The fixing material 5 is not provided so as to straddle the longitudinal center line L.

  The fixing material 5 is used for bonding and fixing the liquid-impermeable sheets 3 together. Specifically, the auxiliary tool 3 is folded in the longitudinal direction along the center line L so that the two ear pieces 13 are opposed to each other. Then, the liquid-impermeable sheet 3 in the ear piece portion 13 provided with the fixing material 5 is bonded and fixed to the liquid-impermeable sheet 3 in the other ear piece portion 13. This state is shown in FIG. In this state, the auxiliary tool 1 has a convex shape toward the liquid-permeable sheet 2 side, with a convex portion 14 formed on the first end portion 11 side. Under this condition, for example, the convex portion 14 is picked with a finger, the ridge line portion on the second end portion 12 side of the assisting tool 1 is pushed downward, the convex shape is inverted, and the concave portion is recessed. This state is shown in FIG. As a result, the auxiliary tool 1 has a three-dimensional shape in which a convex portion 14 directed toward the liquid permeable sheet 2 is formed at a position near the first end 11 and the entire auxiliary tool 1 has a concave shape.

  In the actual use scene, the auxiliary tool 1 is used as shown in FIG. Specifically, first, the sanitary tampon 10 is attached. Next, the drawer string 10a extending from the rear end of the tampon 10 is positioned on the constricted portion 11a formed on the first end portion 11 of the auxiliary tool 1, and the both ear pieces 13 and 13 are placed under this state. The two are joined and fixed on the liquid-impermeable sheet 3 side to obtain the state shown in FIG. In this state, the auxiliary tool 1 is formed with a closed insertion portion through which the string 10a is inserted by the joined ear pieces 13 and 13. The string 10a can move freely in the insertion portion. That is, the string 10 is not fixed to the auxiliary tool 1. Subsequently, the shape of the auxiliary tool 1 having a convex shape is reversed to form a concave shape as shown in FIG. Finally, the concave auxiliary tool 1 is drawn toward the body along the drawstring 10a and is brought into close contact with the body. In this case, the assisting tool 1 is brought into close contact with the body such that the first end 11 side on which the convex portion 14 is formed is located on the back side of the body and the second end 12 side is located on the front side of the body. It is preferable from the point that favorable fitting property is obtained. In particular, when the auxiliary tool 1 is mounted so that the convex portion 14 fits into the crack, the fitting property is further improved.

  From the viewpoint of further improving the adhesion between the assisting tool 1 and the body, and from the viewpoint of preventing the position of the assisting tool 1 from being displaced during wearing by the movement of the user, the surface of the liquid-permeable sheet 2 is weak. An adhesive for body wearing may be applied, and the auxiliary tool 1 may be fixed to the body with the adhesive. The pressure-sensitive adhesive can be applied continuously or discontinuously over the entire periphery of the liquid-permeable sheet 2. As the pressure-sensitive adhesive, styrene / ethylene is selected from the viewpoint of forming a leak-proof region that does not allow liquid to permeate through the pressure-sensitive adhesive, and from the viewpoint of selecting an inexpensive material that is less irritating to the skin, stable over time as a pressure-sensitive adhesive・ Butylene / styrene block copolymer (SEBS) or styrene / ethylene / propylene / styrene block copolymer (SEPS) 30 to 70% by weight, hydrogenated hydrocarbon resin 40 to 60% by weight, and process A composition containing 5 to 15% by weight of oil is particularly preferred.

  According to the auxiliary tool 1 having the above configuration, the entire body has a concave shape, so that it easily fits the curve of the body and can reliably absorb menstrual blood leaking from the tampon 10. Therefore, it is possible to effectively prevent the clothes from becoming dirty with menstrual blood. Further, since the pull-out string 10a of the tampon 10 is separated from the body by the auxiliary tool 1, the string 10a is not contaminated with menstrual blood. Since the drawer string 10a is inserted into the closed insertion part formed by joining the both ear pieces 13 and 13, the position of the string 10a does not change greatly while the auxiliary tool 1 is mounted. Furthermore, since the auxiliary tool 1 is in a sheet form before use, even if a plurality of the auxiliary tools 1 are packaged, they do not become bulky.

  The forming material of each part of the auxiliary tool 1 will be described. As the liquid-permeable sheet 2, the liquid-impermeable sheet 3, and the absorbent body 4, those conventionally used for absorbent articles such as sanitary napkins and panty liners, respectively. Can be used without particular limitation. Since the auxiliary tool 1 of this embodiment is a sheet-like material, each constituent material is preferably thin. In particular, it is preferable to make the absorbent body 4 that is a member that tends to be bulky generally thin. As a constituent material of such an absorber, for example, an absorbent paper described in JP-A-8-246395 related to the earlier application of the present applicant, or JP-A-2002-187228 related to the earlier application of the present applicant. Non-woven fabrics described in the publication No .. In addition, since the auxiliary | assistant tool 1 of this embodiment is used in order to absorb the menstrual blood which leaks from a tampon auxiliary, high absorption capacity is not requested | required of the absorber 4. FIG. Therefore, even if the thin absorber 4 is used, there is no particular problem.

  As the fixing material 5, for example, various adhesives such as a hot melt adhesive can be used. A loop member or a hook member of a mechanical fastener can also be used. When the mechanical fastener is used, there is an advantage that the auxiliary tool 1 can be attached and detached any number of times. When a mechanical fastener is used, for example, when a hook member is used, the liquid-impermeable sheet 3 in the other ear piece portion 13 is engaged with the hook member with respect to the ear piece portion 13 provided with the fixing material 5. It is made of a compatible material, for example, a nonwoven fabric. Before the auxiliary tool 1 is used, the surface of the fixing member 5 is protected so as not to be joined to other members in the auxiliary tool 1. For example, when the fixing material 5 is made of an adhesive, the fixing material 5 is protected by release paper or the like.

  Since the auxiliary tool 1 of this embodiment is used to supplementarily absorb menstrual blood leaking from the tampon, it does not have to be a large size like a sanitary napkin. From the viewpoint of improving fit and preventing the occurrence of discomfort, the size is preferably small to some extent. Specifically, the auxiliary tool 1 preferably has a length of about 50 to 150 mm and a width of about 30 to 90 mm. Regarding the thickness, the thickness is preferably a sheet-like thickness. Specifically, the thickness is preferably about 1 to 10 mm, particularly about 2 to 5 mm. With such a thickness, it is possible to improve fit and to effectively prevent the occurrence of a sense of incongruity. Furthermore, the operation of forming the sheet-like auxiliary tool 1 into the three-dimensional shape shown in FIG. 3 can be easily performed. However, the auxiliary tool 1 does not have to have the thickness in all regions, and may have a part thicker than the thickness in part. For example, the peripheral portion of the assisting tool 1 has a thickness in the above range, and may have a portion thicker than the peripheral portion inside the peripheral portion (for example, FIG. ) And (b)). In this case, the thickness of the thick portion is preferably about 2 to 10 mm, particularly about 3 to 8 mm.

  From the viewpoint of more easily performing the operation of forming the sheet-like auxiliary tool 1 into the three-dimensional shape shown in FIG. 3, the auxiliary tool 1 has a bending rigidity of 1 to 250 cN / cm, particularly 3 to 150 cN / cm. preferable. In order to set the bending rigidity of the auxiliary tool 1 within this range, for example, the material, thickness, basis weight, and the like of the liquid-permeable sheet 2, the liquid-impermeable sheet 3, and / or the absorber 4 may be appropriately adjusted. The bending stiffness is measured by the following method. The instrument and tensile / compression tester (Tensilon RTM25, manufactured by Toyo Baldwin) shown in FIG. 7 are set to the compression mode. The instrument shown in FIG. 7 is a U-shaped receiving member 19 having a pair of plates 18 and 18 arranged at intervals of 27 mm, and a push-in whose tip is inserted between the plates 18 and 18 of the receiving member 19. Plate 20. The plate 18 and the push-in plate 20 of the receiving member 19 are each made of acrylic resin having a thickness of 3 mm, and the tip portion is formed in a cross-sectional arc shape having an R15 mm. The plates 18 of the receiving member 19 each have a height of 50 mm and a depth of 70 mm. The pushing plate 20 has a height of 60 mm and a depth of 50 mm. Cut the tampon auxiliary tool 1 by 40 mm in the longitudinal direction and 30 mm in the width direction. The sample is placed on the plates 18 and 18 so that the depth direction of the plate 18 and the pushing plate 20 of the receiving member 19 and the longitudinal direction of the sample cut from the tampon auxiliary tool 1 intersect at about 90 degrees. The pushing plate 20 is lowered, and the sample is pushed into the center between the plates 18 and 18 at a speed of 50 mm / min as shown in the right figure of FIG. A value obtained by dividing the maximum stress value at this time by the sample width of 30 mm is defined as bending rigidity.

  Next, second to fourth 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. 4 to 6, the same members as those in FIGS. 1 to 3 are denoted by the same reference numerals.

  The auxiliary tool 1 according to the second embodiment shown in FIGS. 4A and 4B has an oval shape. Unlike the auxiliary tool of the first embodiment, the auxiliary tool 1 of the present embodiment has no constricted portion at the end thereof. The auxiliary tool 1 is symmetrical with respect to both the longitudinal center line L and the width direction center line perpendicular thereto. And the auxiliary tool 1 has the fixing material 5 in the position close | similar to the 1st end part 11 and biased in the width direction with respect to the longitudinal direction centerline L. As shown in FIG.

  The auxiliary tool 1 is provided with a Y-shaped embossed portion 15 formed of a continuous line. The embossed portion 15 compacts the liquid permeable sheet, the liquid impermeable sheet, and the absorber. The embossed portion 15 includes a leg portion 15a that extends from the vicinity of the first end portion 11 toward the second end portion 12 side, and a pair of arm portions 15b and 15b that branch in a V shape from the tip of the leg portion 15a. The leg portion 15a is located on the longitudinal center line L. In the auxiliary tool 1, since the thickness is different between a portion where the embossed portion 15 is applied and a portion where the embossed portion is not applied, a step is formed due to the thickness difference. This step extends in the longitudinal direction of the auxiliary tool 1.

  The auxiliary tool 1 of the present embodiment can be changed from a sheet-like form to a three-dimensional shape by the same operation as the auxiliary tool of the first embodiment described above. FIG. 4B shows the auxiliary tool 1 having a three-dimensional shape. The assisting device 1 shown in FIG. 4B has a convex portion 14 at a position near the first end portion 11 and the entire assisting device has a concave shape. In this case, since the step mentioned above is formed in the auxiliary tool 1, it becomes easy to bend the auxiliary tool 1 along this level | step difference, FIG.4 (b) from the planar shape shown to Fig.4 (a). ) Can be smoothly formed.

  The auxiliary tool 1 of the third embodiment shown in FIGS. 5 (a) and 5 (b) has an oval outer shape similar to the auxiliary tool of the second embodiment. The absorbent body 4 of the auxiliary tool 1 includes a lower absorbent body 4a having the same shape as the outer shape of the auxiliary tool 1, and an upper absorbent body 4b positioned thereon. The upper absorbent body 4b is an oval having a smaller size than the lower absorbent body 4a. The upper absorbent body 4 b is disposed on the longitudinal center line L of the auxiliary tool 1 and at a position near the first end portion 11. The auxiliary tool 1 has a fixing member 5 at a position near the first end portion 11 and deviated in the width direction with respect to the longitudinal center line L. The fixing material 5 is located between the first end portion 11 and the upper absorbent body 4b.

  The lower absorber 4a and the upper absorber 4b may be formed integrally or may be separate. Thus, by making the absorber 4 into a two-stage structure, the absorber 4 has two portions having different thicknesses, resulting in a difference in thickness. Due to the difference in thickness, a step extending in the longitudinal direction is formed in the auxiliary tool 1. Specifically, a step extending in the longitudinal direction is formed along both side portions of the upper absorbent core 4b. As a result, when the planar-shaped auxiliary tool 1 shown in FIG. 5 (a) has the three-dimensional shape shown in FIG. 5 (b), the auxiliary tool 1 is easily bent along the step, thereby forming a three-dimensional shape. Can be performed smoothly.

  In the three-dimensional auxiliary tool 1 shown in FIG. 5B, the auxiliary tool 1 has a convex portion 14 at a position near the first end portion 11 and has a concave shape as a whole. And the small convex part 16 by the upper absorber 4b is formed in the base vicinity of the convex part 14. FIG.

  The assisting tool 1 of the fourth embodiment shown in FIG. 6 has a substantially pear shape, and has a narrow first end 11 and a wide second end 12. A notch 17 having a predetermined length is formed at the center of the first end portion 11 in the width direction, that is, at a position where the longitudinal center line L passes. Further, the auxiliary tool 1 has a fixing member 5 at a position near the first end portion 11 and deviated in the width direction with respect to the longitudinal center line L. That is, the fixing material 5 is provided at the end on the same side as the side where the notch 17 is formed. Thereby, when forming the convex part by making the auxiliary tool 1 into a three-dimensional shape, the convex part can be easily formed. In addition, the insertion portion of the tampon drawer string can be easily formed.

  The present invention is not limited to the embodiment. For example, in each of the embodiments described above, the fixing member 5 is provided at a position near the first end 11 and deviated in the width direction with respect to the center line L in the longitudinal direction. If the fixing material is provided near one end, it is not necessarily required to be provided at a position deviated in the width direction with respect to the longitudinal center line L. For example, the fixing material 5 may be provided symmetrically with respect to the longitudinal center line L so as to straddle the longitudinal center line L.

  Moreover, you may give the thing similar to the embossing given to the auxiliary tool of 2nd Embodiment to the auxiliary tool of 1st and 4th embodiment, or 2 used for the auxiliary tool of 3rd Embodiment. A step absorber may be used. Moreover, you may provide the thing similar to the constriction part provided in the auxiliary tool of 1st Embodiment in the edge part in the auxiliary tool of 2nd and 3rd Embodiment, or the auxiliary tool of 4th Embodiment You may provide the same thing as the notch provided in.

  Moreover, in the said embodiment, although the auxiliary tool 1 had the liquid-permeable sheet 2, the liquid-impermeable sheet 3, and the absorber 4, it replaced with this and the absorption which carry | supported the particle | grains of the superabsorbent polymer. The auxiliary tool 1 may be configured by using paper as a liquid-permeable layer and bonding it to the liquid-impermeable sheet 3 as a liquid-impermeable layer. Alternatively, the auxiliary tool 1 may be configured by using a sheet having liquid retention and liquid impermeability as the liquid impervious layer and joining the liquid permeable sheet 2 as the liquid permeable layer.

FIG. 1 (a) is a perspective view showing a first embodiment of the tampon absorption assisting device of the present invention, and FIG. 1 (b) is a partially reversed view of the assisting device shown in FIG. 1 (a). It is a perspective view. Fig.2 (a) is a perspective view which shows the state in the middle of making the auxiliary tool shown to Fig.1 (a) into a three-dimensional shape, and FIG.2 (b) is a perspective view which shows the auxiliary tool made into the three-dimensional shape. FIG. 3 is a perspective view showing a state in use of the auxiliary tool shown in FIG. FIG. 4 (a) is a perspective view showing a second embodiment of the tampon absorption aid of the present invention, showing a state before use, and FIG. 4 (b) showing a state during use. It is a perspective view. FIG. 5 (a) is a perspective view showing a third embodiment of the tampon absorption aid of the present invention, showing a state before use, and FIG. 5 (b) showing a state during use. It is a perspective view. FIG. 6 is a perspective view showing a fourth embodiment of the tampon absorption aid of the present invention, and shows a state before use. It is a figure which shows the measuring method of a bending rigidity value.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Absorption assisting tool for tampon 2 Liquid permeable sheet 3 Liquid impermeable sheet 4 Absorber 4a Lower absorber 4b Upper absorber 5 Fixing material 10 Sanitary tampon 10a Draw string 11 First end 11a Constricted part 12 Second End part 13 Ear piece part 14 Convex part 15 Emboss 16 Small convex part 17 Notch

Claims (8)

A sheet-shaped absorption aid for a tampon having a liquid-permeable layer and a liquid-impermeable layer and having a longitudinal direction and a width direction perpendicular thereto,
At the position near one end in the longitudinal direction on the surface of the liquid impervious layer, it has a fixing material that joins and fixes the liquid impervious layers,
By fixing the liquid-impermeable layers to each other by the fixing material, a convex portion directed toward the liquid-permeable layer is formed at a position near the one end, and the entire assisting device has a concave shape. Absorption aid for tampon.   The absorption assisting tool for tampon according to claim 1, wherein the fixing member is provided at a position near one end in the longitudinal direction and deviated in the width direction with respect to the longitudinal center line.   The absorption assisting tool for tampon according to claim 1 or 2, wherein a closed insertion portion through which a string for pulling out the tampon is inserted is formed by bonding and fixing the liquid impervious layers with the fixing material. .   The center part of the width direction in the edge part by which the said fixing material is provided among the edge parts of the said auxiliary tool is curled toward inward, or the center part has a notch | incision. The absorption assistance tool for tampons in any one of thru | or 3.   The absorption assisting tool for a tampon according to any one of claims 1 to 4, wherein the tampon has a portion having a different thickness and a step extending in the longitudinal direction is formed by the thickness difference.   The absorption aid for tampon according to any one of claims 1 to 5, wherein the bending rigidity is 1 to 250 cN / cm.   The peripheral portion and a portion thicker than the peripheral portion inside the peripheral portion, the thickness of the peripheral portion is 1 to 5 mm, and the thickness of the thick portion is 2 to 10 mm. An absorption aid for tampons according to any one of the above. The tampon absorption aid according to any one of claims 1 to 7, wherein a weakly adhesive body-worn adhesive is applied to the surface of the liquid-impermeable layer.

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