WO2003065952A1

WO2003065952A1 - Auxiliary pad

Info

Publication number: WO2003065952A1
Application number: PCT/JP2002/012020
Authority: WO
Inventors: Satoshi Mizutani; Yuki Noda
Original assignee: Uni-Charm Corporation
Priority date: 2002-02-04
Filing date: 2002-11-18
Publication date: 2003-08-14
Also published as: TW200303186A; AU2002343827A1

Abstract

An auxiliary pad (1) for mounting an absorbable article such as a sanitary napkin capable of reducing the occurrence of leakage of body fluid by maintaining the tightness thereof to the inside of the thigh of a wearer when installed and providing comfortable wear feeling, comprising an absorbing layer (2) bent so as to provide a bent area (4) projected toward a body side and a limiting sheet (3) installed on the anti-body surface of a short flat area (8) continuously connected to the bent area (4), wherein a space (5) is formed between the bent area (4) and the limiting sheet (3), whereby a sanitary product for women can be provided.

Description

Auxiliary pad

Technical field

The present invention relates to a sanitary article for women, and more particularly to an auxiliary pad for attaching an absorbent article such as a sanitary napkin. Rice field

Background art

BACKGROUND ART Absorbent articles including an absorbent such as sanitary napkins have been widely used as sanitary articles for absorbing body fluids. A great deal of effort has been made here to prevent menstrual leakage, especially for sanitary napkins with a large demand.

However, the sanitary napkin is originally attached to the underwear and is not attached in close contact with the wearer's inner thigh, so that there is a gap between the wearer's body and the sanitary napkin. Menstrual blood easily leaks from such gaps.

In this regard, Japanese Patent Application Laid-Open No. H10-1276992 discloses an auxiliary sanitary absorbent body in which a material having a water-absorbing property is formed in a rod shape and the cross section has a substantially triangular portion. .

The sanitary napkin is used solely because it fills the gap between the inner thigh of the wearer and the sanitary napkin when the wearer is wearing the sanitary napkin. It can be said that the effect of preventing leakage of menstrual blood can be enhanced as compared with the case of performing the treatment.

However, such a sanitary auxiliary absorbent body has a high rigidity because it is simply formed of an absorbent material into a long and thin rod shape, and is difficult for the wearer to perform. Therefore, the initial state of wearing cannot be maintained, and a gap may be formed between the wearer's inner thighs (particularly at the buttock) and the sanitary napkin. In such a case, menstrual blood is likely to leak from such a gap, and the function of preventing menstrual leakage by assisting the sanitary napkin cannot be fully exhibited.

As described above, the conventional assisting device such as the above-mentioned sanitary auxiliary absorber simply assists the menstrual blood absorbing ability of the sanitary napkin in a stable wearing state, and is useful for activities of the wearer. Correspondingly, it has not yet been possible to ensure sufficient adherence to the wearer's inner thighs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to reduce the occurrence of leakage of body fluid while maintaining the adhesion to the inner thigh of a wearer even when worn. An object of the present invention is to provide a catching pad for attaching an absorbent article such as a sanitary napkin having a feeling of wearing. Disclosure of the invention

In order to solve the above-described problems, in the present invention, the assisting device to be attached to the absorbent article is shaped so as to fill a gap between the inner crotch of the wearer and the absorbent article, and the wearer's It is characterized in that it can be flexibly deformed in response to movement, and more specifically, that the absorber is bent so that it can be attached to an absorbent article while having a space inside.

More specifically, the present invention provides the following.

(1) An auxiliary pad for attaching absorbent articles having liquid absorbency, which has liquid absorbency and has a body side facing the wearer's body and an anti-body side facing the absorbent article. A bending area that is sometimes convex toward the wearer's body side, and the bending area is provided with a maintaining means for maintaining a bending state of the bending area, and is provided on the absorbent article. An auxiliary pad, wherein the bonding portion for bonding is provided on a bottom portion of the bending region on the side opposite to the body.

The auxiliary pad according to the present invention has a bent region that is bent so that the body side is the top. For this reason, when using an absorbent article such as a sanitary napkin, the auxiliary pad according to the present invention is attached to the body side of the absorbent article to create a gap between the wearer's inner thigh and the absorbent article. It is possible to maintain the same state even during mounting.

That is, since the auxiliary pad according to the present invention has a bending area formed by bending a series of absorbent sheets, a space is formed inside the bending area (opposite the body). By appropriately deforming the shape of the capture pad itself into such a space, external pressure such as body pressure is buffered, and the concave portion of the wearer's inner crotch is formed in response to a change in operation during wear and the like. This makes it possible to maintain the state in which the auxiliary pad is tightly attached, and to prevent the occurrence of a gap between the auxiliary pad and the absorbent article and the inner thigh of the wearer. As described above, since the bending area of the auxiliary pad according to the present invention is formed by simply bending a series of sheets, the auxiliary pad has flexibility, and is flexible on the inner thigh of each wearer. It provides a feeling of wearing that does not give a firm feeling while being able to cope with the problem.

In this respect, when the absorbent material is simply formed into a bar or a triangle, as in the above-mentioned sanitary auxiliary absorbent body, the rigidity is high, and not only gives the wearer a foreign-body sensation at the time of wearing, but also because of its rigidity. It is not easy to change the shape. For this reason, it is difficult for the auxiliary absorbent itself to buffer external pressure such as body pressure, and the external pressure is directly transmitted to the fastening surface of the absorbent article to be used in combination. From the In such a case, menstrual blood may flow out because the gap between the buttocks cannot be filled. There is a high risk of breeding.

On the other hand, the auxiliary pad of the present invention can prevent a gap from being formed between the bending region and the wearer's body because the bending region can flexibly deform itself according to the motion of the wearer. Thus, while effectively preventing the outflow of bodily fluids, it is possible to support the absorption of bodily fluids by maintaining the mounting position with the absorbent article to be used together.

The auxiliary pad according to the present invention is adhered to a portion located behind the absorbent article when the absorbent article is worn on the body, that is, a portion near the buttocks when worn. By doing so, it is possible to fill the valley of the buttocks, which tends to be the largest gap between the body and the absorbent article, and the body fluid spreads from such space to the skin by flowing out to the back. Adhesion can be prevented beforehand and dirt on the skin and underwear can be effectively prevented.

As described above, the auxiliary pad according to the present invention has the effect of improving the performance of the existing absorbent article to be used in combination, relieving the wearer of anxiety about body fluid leakage, and expanding the activity area activity of the wearer. It is a sanitary product that brings.

(2) The maintaining means is a regulation sheet provided so as to extend from one skirt portion to the other skirt portion of the bending region, and the expansion of the bending region is regulated by the regulation sheet. The auxiliary pad according to (1), wherein the bending state is maintained.

According to the auxiliary pad of the present invention, on the opposite side of the body, the regulation sheet is attached so as to extend from one hem to the other hem of the bending area. For this reason, at the time of wearing, it is possible to reliably prevent the bending region from being expanded by the external pressure or the action of the wearer, and the space formed inside the bending region from being crushed. In particular, long use Useful if reached.

Also, since the bending area is prevented from spreading before use, the wearer can maintain the shape of the bending area without wearing the auxiliary pad according to the present invention without any special attention. .

(3) The auxiliary pad according to (1) or (2), wherein the regulation sheet is provided for a part of the bending region. According to the auxiliary pad according to the present invention, the regulation sheet is arranged such that, in the bending area, there are a regulation area whose expansion is regulated and a non-regulation area that is not regulated. For this reason, by mounting such that the restriction region is located on the body part having the concave portion, the bending region can be brought into contact with the innermost portion of the concave portion without resistance in such a restriction region, and in the non-regulation region, The bent area is expanded so that it can be adhered so as to cover the vulva.

As described above, according to the auxiliary pad of the present invention, since the bent portion can be deformed along the shape of the inner crotch of the wearer, it is possible to effectively prevent leakage of body fluid. is there.

(4) The auxiliary pad according to (2) or (3), wherein the adhesive portion is provided on a side opposite to the body of the regulation sheet.

ADVANTAGE OF THE INVENTION According to the auxiliary pad which concerns on this invention, the adhesive part for fixing to the absorbent article used together is provided in the non-body side of the regulation sheet | seat which regulates expansion of a bending area.

In this case, it is preferable that the bonding portion is provided at least at a bonding position where the regulation sheet and the auxiliary pad body are bonded, that is, at a position corresponding to the vicinity of both skirts of the bending region. Since the load, such as body pressure, applied to the assisting pad is concentrated on the foot of the bending area, it is necessary to install it at such a location to fix the assisting pad to the absorbent article. This makes it possible to make it difficult for the auxiliary pad to be peeled off from the fixed absorbent article by the operation change during wearing. -

(5) A flat region that extends outward from the ends of the both skirts and that is in contact with the body when worn is connected to both skirts of the bending region, (1) to (4). Auxiliary pad described.

The auxiliary pad according to the present invention has a flat region extending from the left and right skirts of the bending region. Such a flat region can be positioned so as to cover the vulva when worn, so that the body side surface of the auxiliary pad can be made to follow the surface of the wearer's pubic region. For this reason, the surface of the auxiliary pad can come into wide contact with the wearer's body, and the maximum absorption capacity of the auxiliary pad can be increased without giving the wearer an intense foreign-body sensation. In particular, by reducing the thickness of the absorber in the flat region than in the bent region, it is possible to further reduce the feeling of foreign matter.

In addition, by increasing the density of the absorber of the auxiliary pad in the flat region rather than the bent region, the bodily fluid absorbed in the bent region by capillary action can be transferred to the flat region, so that the maximum absorption capacity of the auxiliary pad is maximized. It can be used for limited purposes (see Fig. 10).

Furthermore, according to the auxiliary pad of the present invention, since the bonding portion for bonding to the absorbent article is positioned on the side opposite to the body side of the flat region, the bonding portion can easily maintain a flat shape. For this reason, when the auxiliary pad is attached to the body and then the undergarment to which the absorbent article is fixed is pulled up to attach the auxiliary pad to the absorbent article, and the bonding process is performed during the lifting of the underwear. It can be prevented from sticking and preventing the surface material of the absorbent article used together with the auxiliary pad according to the present invention from being completely bonded. As a result, This makes it possible to reduce the risk of the auxiliary pad coming off the absorbent article.

(6) The auxiliary pad according to any one of (1) to (5), wherein the auxiliary pad has elasticity.

The auxiliary pad according to the present invention is provided with an elastic member so as to have elasticity. For this reason, even if the capture pad is wet due to absorbed body fluids (especially menstrual blood), the bulk of the auxiliary pad is reduced, preventing gaps that did not exist at the time of attachment. can do.

In addition, due to the repulsive force of the elastic member, it is possible to prevent a gap from being formed along the body side surface of the auxiliary pad against any deformation of the body shape due to the action of the wearer.

(7) The auxiliary pad according to any one of (1) to (6), wherein the auxiliary pad has a flexural rigidity of 1.5 mNZ25 mm or less, more preferably 1. OmN / 25 mm or less.

According to the auxiliary pad according to the present invention, when the direction toward the front and back of the wearer at the time of wearing is defined as the X-axis direction, and the direction orthogonal thereto is defined as the Y-axis direction, Has a bending stiffness of 1.5 mN / 25 mm or less, more preferably 1. OmN / 25 mm or less. By providing the auxiliary pad with such a bending rigidity value, the auxiliary pad can be deformed with lower resistance to the concave shape of the inner crotch which changes with the wearer's movement. -Such a rigidity value can be obtained by subjecting the absorber provided in the auxiliary pad to heat embossing slit processing or the like to give a rigidity difference in the Y-axis direction.

Here, when the texture to the skin is considered, the slip that obtains the difference in rigidity by dividing the fiber entanglement is more effective than the embossing that obtains the difference in rigidity due to the difference in density. It is preferable to carry out processing.

As the slit processing, there is a slit processing performed by a slit blade having a length of 10 mm, which extends in a dashed shape in the X-axis direction and is arranged in a staggered manner in the Y-axis direction.

The bending stiffness values were measured using a Galley meter with a sample taken so that the length near the center of the auxiliary pad was 38 mm in the transverse direction and 25 mm in the longitudinal direction. (See Figure 18).

(8) The auxiliary pad according to any one of (1) to (7), wherein the auxiliary pad has a substantially vertically long shape, and has a longitudinal direction and a lateral direction. .

According to the auxiliary pad according to the present invention, the auxiliary pad has a substantially vertically long shape. For this reason, the top of the bending area is worn along the inner thigh of the wearer, specifically, the center of the inner thigh of the wearer, which extends from the incision to the perineum and connects to the groove of the buttocks. be able to. This makes it possible to effectively prevent leakage of bodily fluids, in particular, backward leakage of bodily fluids caused by flowing along the back from the crack in the buttocks.

(9) The auxiliary part according to (8), wherein the bent region is such that the height of the top of the bent region gradually increases from one end to the other end in the longitudinal direction. pad.

According to the auxiliary pad according to the present invention, the top of the bending area gradually increases from one end of the auxiliary pad toward the other end. By mounting the auxiliary pad of the present invention on the absorbent article toward the rear side of the absorbent article that also uses the raised portion, the inclined bent area is shaped into the shape of the buttocks of the wearer. It is easier to match. That is, the auxiliary pad of the present invention is used in such a manner that the above-mentioned raised portion is located in the vicinity of the buttocks with the largest gap, so that the bending region extends from the perineum to the anus. It is easier to fit into the valleys of the buttocks that gradually increase in depth over time. For this reason, it is possible to more effectively prevent the outflow of bodily fluids due to leaks.

(10). The auxiliary pad is characterized in that both side portions located left and right with respect to the longitudinal direction as a central axis form waist portions that are recessed toward the central axis. The auxiliary pad according to (8) or (9). According to the auxiliary pad according to the present invention, both side edges in the longitudinal direction have curved portions instead of straight lines. For this reason, such a curved portion fits and fits the wearer's inner thigh.

That is, an auxiliary pad used in combination with an absorbent article such as a sanitary napkin can be roughly classified into two mounting steps. One is the process of attaching the auxiliary pad to the absorbent article to be used together, fixing it to the underwear, and then lifting the underwear, and the other is the place where the leakage is likely to occur. For example, the auxiliary pad is sandwiched between the buttocks in advance, and the undergarment to which the absorbent article is fixed is pulled up so that the auxiliary pad and the absorbent article are adhered and attached.

Here, in the latter case, since the auxiliary pad can be inserted directly into the body part of the wearer's intended body, the auxiliary pad can be securely mounted at an appropriate position. Thereby, body fluid leakage can be effectively prevented. However, in this process, it is necessary to prevent the sandwiched auxiliary pad from falling off the body while lifting the underwear to which the absorbent article is fixed.

In this regard, the auxiliary pad according to the present invention has both side edges curved so that the shape is along the curved direction of the buttocks or the inner thigh. For this reason, when the auxiliary pad is worn on the body, not only is the bent portion of the auxiliary pad pinched by the muscle strength of the buttocks and the like, but also the contact area between the body and the capture pad is increased. This makes it easier to maintain the state in which the auxiliary pad is attached to the body. This makes it possible to prevent the sandwiched auxiliary pad from falling off the body while the undergarment to which the absorbent article is fixed is pulled up.

(11) The auxiliary pad according to any one of (1) to (10), wherein the auxiliary pad is an auxiliary pad for urinary incontinence.

According to the capture pad according to the present invention, the auxiliary pad can be used not only as a sanitary pad but also as a countermeasure for urinary incontinence. That is, since the vaginal opening for discharging menstrual blood and the urethral opening for discharging urine are both located between the labia, when the auxiliary pad according to the present invention is used by being sandwiched between the labia, the urine may be excreted. Can be absorbed.

As described above, according to the present invention, urine can be absorbed between the labia, particularly near the urethral opening, so that an absorbent pad effective for urinary incontinence, especially for mild urinary incontinence can be obtained.

(12) The auxiliary pad according to any one of (1) to (10), wherein the auxiliary pad is an auxiliary pad for absorbing vaginal discharge.

According to the auxiliary pad of the present invention, the catching pad can be used for absorbing vagina. That is, since the auxiliary according to the present invention is used by being sandwiched between the labia, it can absorb secretions other than menstrual blood from the vaginal opening. It can also be used for absorption. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing a body side surface of an auxiliary pad in the present embodiment.

FIG. 2 is a perspective view showing the auxiliary pad in the present embodiment on the side opposite to the body. JP02 / 12020

11 FIG. 3 is a vertical sectional view taken along line AA of FIG.

FIG. 4 is a view for explaining a protection sheet for protecting an adhesive portion provided on the side opposite to the body of the regulation sheet of the catching pad according to the present embodiment. FIG. 5 is a diagram showing a state in which the auxiliary pad of the present embodiment is held by pinching a bending region.

FIG. 6 is a view showing a state in which the auxiliary pad in the present embodiment is fixed to an absorbent article (sanitary napkin) via an adhesive portion.

FIG. 7 is a longitudinal sectional view for explaining a fitting state of the assisting pad to the buttocks in the present embodiment.

FIG. 8 is a longitudinal sectional view for explaining a state of fitting a conventional sanitary aid to a buttocks.

FIG. 9 is a vertical cross-sectional perspective view of an auxiliary pad according to another embodiment, the auxiliary pad including a long flat region extending to the left and right skirts of the bending region. FIG. 10 is an explanatory diagram for explaining a mounting state of the auxiliary pad shown in FIG.

FIG. 11 is a cross-sectional perspective view showing an auxiliary pad according to another embodiment, in which a front-side sheet and a rear-side sheet extend from left and right skirts of a bending area to form a regulation sheet. .

FIG. 12 is a cross-sectional perspective view showing an auxiliary pad provided with a regulating sheet having a dimension longer than the widthwise direction of the absorbing layer, which is an auxiliary pad of another embodiment.

FIG. 13 is a vertical cross-sectional view showing a state in which a sanitary napkin is wound on the auxiliary pad regulating sheet shown in FIG. 12 and the auxiliary pad is fixed to an absorbent article (sanitary napkin). .

FIG. 14 shows an auxiliary package having a bending area having a restriction area whose expansion is restricted by a restriction sheet, a non-restriction area which is not restricted, and a restriction area. 2020

12

FIG. 15 is a side view showing a mounted state of the auxiliary pad of FIG. FIG. 16 is a perspective view showing an auxiliary pad according to another embodiment, which is provided with a bending region that is gently inclined in a longitudinal direction.

FIG. 17 is a longitudinal sectional view showing an auxiliary pad according to another embodiment, which includes a sheet made of an elastic member.

FIG. 18 is a perspective view showing an auxiliary pad according to another embodiment, in which a slit process is applied to an absorbing body included therein.

FIG. 19 is a view showing a side surface of a body of an auxiliary pad according to another embodiment, the auxiliary pad having a curved shape on both sides.

FIG. 20 is a diagram showing a mounting state of the auxiliary pad of FIG. FIG. 21 is a view showing a side opposite to the body of the auxiliary pad of FIG. FIG. 22 is a perspective view of the auxiliary pad of FIG. BEST MODE FOR CARRYING OUT THE INVENTION

Next, an embodiment of an auxiliary pad of the present invention will be described with reference to the drawings. .

[Basic auxiliary pad]

FIG. 1 is a perspective view for explaining the body side of the auxiliary pad 1 in the present embodiment, FIG. 2 is a perspective view for explaining the opposite body side of the auxiliary pad 1, and FIG. FIG. 2 is a sectional view taken along line AA of FIG.

As shown in FIG. 1, the auxiliary pad 1 is formed by bending an absorbent layer 2 bent so as to have a bent region 4 protruding toward the body side and a short flat region 8 connected to the bent region 4. And a regulation sheet 3 attached to the body surface. And, between the bending region 4 of the absorption layer 2 and the regulation sheet 3, A space 5 is formed.

As shown in FIG. 2, on the opposite side of the body of the regulation sheet 3, an adhesive portion 6 for fixing the auxiliary pad 1 to a combined sanitary napkin (not shown) is provided on both sides in the longitudinal direction. Have been.

As shown in FIG. 3, the absorbent layer 2 is formed by joining the water-permeable front side sheet 11 and the back side sheet 12 such that the absorbent body 13 is included between the two sheets. Is formed. A space 5 having a substantially triangular cross section is formed between the inside of the bent region 4 of the absorbent layer 2 and the body side of the regulation sheet 3.

Next, the mounting state of such an auxiliary pad 1 will be described. FIG. 4 is a view for explaining a protective sheet 7 for protecting the bonding portion 6, FIG. 5 is a view showing a state in which the auxiliary pad 1 is pinched and held in the bending area 4, and FIG. FIG. 7 is a view showing a state in which the pad 1 is attached to a sanitary napkin 9, FIG. 7 is a longitudinal sectional view showing an attached state of the auxiliary pad 1, and FIG. 8 is a view showing an attached state of a conventional auxiliary device 15. It is a longitudinal cross-sectional view.

As shown in FIG. 4A, the auxiliary pad 1 of this embodiment is provided with a protective sheet 7 for protecting the auxiliary pad before use. Therefore, in use, as shown in FIG. 4 (B), the protective sheet 7 is peeled off to expose the bonding portion 6.

Next, as shown in FIG. 5, the bent portion 4 is pinched with a finger so that the exposed adhesive portion 6 (not shown) does not stick to the hand, and the auxiliary pad 1 is held, as shown in FIG. Then, the auxiliary pad 1 is attached to the rear part of the sanitary napkin 9, specifically, the part corresponding to the vicinity of the buttocks when the sanitary napkin 9 is worn. The wearer fixes the sanitary napkin 9 to which the auxiliary pad 1 is attached to underwear and wears it. The mounting method and For this purpose, a method of temporarily sandwiching the auxiliary pad in a concave portion of the body, and then pulling up the undergarment to which the sanitary napkin is fixed, to bond the auxiliary pad and the sanitary napkin can be adopted. In this case, it is preferable to use an auxiliary pad 90 as shown in FIG. 19 described later.

When the sanitary napkin 9 to which the auxiliary pad 1 is attached is fixed to the underwear 14, as shown in FIG. 7 (A), when the sanitary napkin 9 is attached to the sanitary napkin 9, it is generated between the buttocks 10 and the sanitary napkin 9. The gap can be filled by the auxiliary pad 1. Then, as shown in FIG. 7 (B), even when the position of the sanitary napkin 9 with respect to the buttocks 10 and the shape of the buttocks 10 are changed from the beginning of the wearing due to the movement of the wearer, The deformation of the absorption layer 2 toward the space 5 existing therein makes it possible to flexibly cope with such a change.

In this regard, the conventional assistive device 15 as shown in FIG. 8 (A) has a gap between the sanitary napkin 9 that is sandwiched between the buttocks 10 at the beginning of wearing. It can be filled and has the same effect as the auxiliary pad 1 of the present embodiment. However, if the position or shape of the buttocks 10 changes due to the movement of the wearer, the deformation of the assisting device 15 depends only on the softness of the constituent material itself. Therefore, as shown in FIG. 8 (B), it is difficult to maintain the state where it is no longer in the gap between the buttocks 10. As a result, a gap is formed between the buttocks 10 and the sanitary napkin 9, and menstrual blood may leak from the gap.

[Auxiliary pad of other embodiment]

Next, a catch pad according to another embodiment will be described. FIG. 9 is a longitudinal cross-sectional perspective view showing a trapping pad 20 having a long flat region 28 in which the absorbent layer 22 is connected to the left and right sides of the skirt of the bent region 24. Auxiliary pad 2 FIG. 11 is a view showing a mounting state of 0, and FIG. 11 shows a front side sheet 31 and a back side sheet 32 extending from both side edges of a bending area 34, and both sheets are joined to each other on the side of the garment. FIG. 12 is a view showing an auxiliary pad 40 having a restriction sheet 43 whose dimension is longer than the widthwise direction of the absorbent layer 42, and FIG. FIG. 14 is a longitudinal cross-sectional view showing a state in which the sanitary napkin 9 is wound around and fixed by the restriction sheet 43, and FIG. 14 shows a restriction area where the expansion of the bending area 54 is restricted by the restriction sheet 53, and a restriction area. FIG. 15 is a perspective view showing an auxiliary pad 50 having a non-restricted area and a non-restricted area, FIG. 15 is a side view showing a mounted state of the auxiliary pad 50, and FIG. FIG. 17 is a perspective view showing an auxiliary pad 60 in which a bending area 64 is formed so as to be inclined. FIG. 18 is a longitudinal cross-sectional view showing an auxiliary pad 70 in which an elastic member 75 is arranged in the reservoir layer 2, and FIG. 18 shows an auxiliary pad 80 in which the absorber 83 is slit. FIG. 19 is a perspective view (a part of the front side sheet is removed), and FIG. 19 is a view showing a trapping pad 90 in which both sides of the absorbent layer 92 are curved. FIG. 20 is a diagram showing a state in which the auxiliary pad 90 is sandwiched between the buttocks 10, FIG. 21 is a diagram showing a side opposite to the body of the auxiliary pad 90, and FIG. 22 is an auxiliary pad. 90 is a perspective view of FIG.

In the auxiliary pad 20 shown in FIG. 9, a long flat area 28 extending from the foot of the bending area 24 is connected to the left and right sides of the bending area 24 in the lateral direction. For this reason, at the time of wearing, as shown in FIG. 10, the bending area 24 extends along the concave portion of the labia 27 and the long flat area 28 covers the vulva, so that the auxiliary pad 20 extends. As a result, the maximum absorption capacity of the auxiliary pad 20 can be increased without giving the wearer a foreign-body sensation.

The auxiliary pad 30 shown in FIG. 11 extends the front side sheet 31 and a part of the back side sheet 32 from both side edges of the bending area 34, and is folded back on the side of the clothes. By joining the end portions together, the expansion of the bent region 34 is restricted. In such a configuration, there is no need to join the absorbing layer and the regulating sheet as in the case where the regulating sheet is separately attached, so that the joining portion between the absorbing layer and the regulating sheet is eliminated. The peripheral edge of the auxiliary pad does not become hard due to the presence of, and the wearing feeling can be made suitable.

The extension area of each sheet is such that a part of the front side sheet 31 and the back side sheet 32 is extended as in the present embodiment, and the front side sheet 31 and the back side sheet You may extend all of 3 2. Further, only one of the front side sheet 31 and the back side sheet 32 may be extended. '

In the auxiliary pad 40 shown in FIG. 12, the regulating sheet 43 extends further outward than the bonding position with respect to the absorbing layer 42 in the short direction of the absorbing layer 42. On the opposite body side of the regulation sheet 43, in addition to the first bonding portion 46 A provided at a portion corresponding to the bonding position with the absorbent layer 42, a second bonding portion 46 is provided. B is provided on both sides of the extending portion of the regulation sheet 43. Therefore, as shown in FIG. 13, the sanitary napkin 9 can be wrapped around the extending portion of the regulating sheet 43, and can be attached to the underwear in this state. By doing so, it is possible to prevent a situation in which the auxiliary pad 40 is peeled off from the sanitary napkin 9 that is fixed by the action of the wearer.

The restraining sheet 53 is attached so that the catching pad 50 shown in FIG. 14 is positioned from the vicinity of the center of the absorbent layer 52 to the rear (the buttock side when worn) in the longitudinal direction of the absorbent layer 52. Have been. That is, in the auxiliary pad 50, the regulation sheet 53 is attached to a part of the non-body side of the trapping pad 50, not the whole body. '' Because of this, bending In the area 54, the portion where the regulation sheet 53 is attached is a regulation area where the spread is regulated, and the portion where the regulation sheet 54 is not attached is a non-regulation area.

By using such an auxiliary pad 50 in such a manner that the regulation area is located on the rear side as shown in FIG. The bending region 54 is positioned so as to fill the valley of the buttocks. In such a regulated area, even if the bending area 54 and the concave part of the body (such as a cleft or a valley of a buttock) are not fitted to each other, the external pressure applied to the auxiliary pad 50 may be reduced. Since the buffer 55 can buffer the space 55, the shape of the bent region 54 can be freely changed to conform to the concave shape.

On the other hand, in the non-regulated area, the bent area 54 expands so as to be in close contact with the bulging shape of the Yinfu (pubic mound) located in front of the cleft fissure, and both tails of the bent area 54 are deformed. It will be mounted in a state. Thereby, leakage of body fluid from the front can also be effectively prevented. In the present embodiment, the length in the longitudinal direction of the absorption layer 52 is 15 Omm.

In the auxiliary pad 60 shown in FIG. 16, the bending region 64 is gently inclined in the longitudinal direction, and the restriction sheet 63 is attached so as to correspond to a portion having a high inclination.

Such an auxiliary pad 60 is attached to a sanitary napkin such that a high-inclination portion of the bending region 64 is located rearward. By doing so, the inclination of the flexion area 64 is positioned so as to gradually peak from the front to the rear, and the wearer's body surface, that is, the buttocks gradually increasing in depth from the perineum to the anus. It is easier to fit into the valley, and it is possible to effectively prevent the outflow of menstrual blood due to leakage. In the auxiliary pad 70 shown in FIG. 17, an elastic member 75 is provided on an absorption layer 72. For this reason, the weight of the bodily fluid absorbed and retained by the absorber prevents the volume of the absorbent layer 72 from being reduced and a gap from being generated, and the repulsive force of the elastic member 75 allows the inner thigh to accompany the movement of the wearer. It is also possible to flexibly respond to shape changes.

In the present embodiment, in order to effectively generate such a repulsive force of the elastic member 75, the elastic member 75 is bent substantially along the longitudinal center line similarly to the absorber 73, It is included so as to be present up to the end portions 72a and 72b in the lateral direction.

Further, since the elastic member 75 may be disposed at a position that does not impair the permeability of menstrual blood, the body side of the absorber 73 and the body side of the back sheet 74 as in the present embodiment. In addition to the above, it is also possible to arrange between the body side opposite to the front side sheet 71 and the body side of the absorber 73. In the auxiliary pad 80 shown in FIG. 18, a slit 85 is applied to an absorber 83 included in the absorption layer 82. By this slit processing, the bending stiffness value of the absorbing layer 82 in the Y-axis direction can be 1.5 mNZ25 mm or less, and more preferably 1.0 OmN25 mm or less.

The above bending stiffness values were obtained by taking a sample 86 with a length of 38 mm in the width direction near the center of the product and a length of 25 mm in the length direction. Measured.

In the auxiliary pad 90 shown in FIG. 19, the shape of the absorbing layer 92 is curved such that both sides in the longitudinal direction are cut inward. For this reason, as shown in FIG. 20 (A), even when the auxiliary pad 90 is sandwiched between the buttocks 10 and the undergarment 14 to which the sanitary napkin 9 is fixed is pulled up and attached, as shown in FIG. As shown in B), the absorbent layer 92 can be fitted to the inner crotch 98 of the wearer. For this reason, sanitary napkin 9 is regulated Until the auxiliary pad 9 and the sanitary napkin 9 are bonded to the bonding portion 96 provided on the sheet 93, the auxiliary pad 90 is prevented from coming off the buttocks .10.

As shown in FIG. 21, on the side opposite to the body of the absorbent layer 92, a colored regulation sheet 93 is provided at the center in the longitudinal direction of the absorbent layer 92. The entire anti-body side of the body has an adhesive portion 96. Then, a protective sheet 97 is attached so as to cover the adhesive portion 96. Since the protective sheet 97 has a rectangular shape, it does not completely conform to the curved contour of the absorbent layer 92, and before use, as shown in FIG. The protective sheet 97 can be visually recognized even from the direction.

[Shape of absorption layer]

The shape of the absorbent layer before the formation of the bent region is not particularly limited as long as it is a shape that can be reasonably fitted to the body of a woman, but is preferably a substantially vertically long shape, and is preferably an elliptical shape. Shapes such as shape, gourd shape, and zero shape can be adopted.

The apparent shape of the absorbent layer after the bent region is formed depends on the shape of the space formed between the opposite body side of the absorbent layer and the body side of the regulating sheet. The shape of this space is not particularly limited, but is desirably substantially triangular in order for the top of the bending region to be in contact with the innermost part of the wearer's incision ゃ buttocks with low resistance.

[Size of absorption layer]

The size of the absorbent layer serving as the body of the assisting pad should be 50 to 200 mm in length, preferably 80 to 15 O mm, and the apparent width as viewed from the side of the body (length in the transverse direction) Is in the range of 10 to 80 mm, preferably 30 to 40 mm. If the amount is less than the above range, the amount of excreted body fluid easily exceeds the maximum absorption capacity of the auxiliary pad, and there is a risk that body fluids such as menstrual blood may flow out. In this case, the size of the absorbent article such as sanitary napkin or the like may be exceeded, and the wearing feeling may be impaired.

In this regard, by setting the size within the above-described range, it is possible to maintain the body fluid absorbing ability to some extent but not to impair the feeling of wearing. The height of the flexion area (the distance from the body side of the regulation sheet to the anti-body side at the top of the flexion area when the internal space is substantially triangular) is 5 to 4 Omm, preferably 15 to 2 mm. Preferably it is in the range of 5 mm.

If the height of the flexion area is less than this range, the height of the flexion area will be smaller than the depth of the valley at the buttocks, so that the excretion route of bodily fluids passing through the skin at the innermost part of the valley of the buttocks is blocked This is because if it is larger than this range, the feeling of wearing may be impaired.

The cross-sectional area of the space formed inside the bending region is preferably in the range of 12 to 160 mm ² , and more preferably in the range of 10 to 500 mm ² . If the space is less than the above-mentioned range, the amount of space for the absorbent layer to freely deform into the space is reduced, and it becomes difficult to follow the operation change. Because it may hinder

[Regulation sheet]

The restricting sheet is bonded to the absorbent layer on both sides of the bending area on the side opposite to the body of the absorbent layer.

The method of joining the regulating sheet and the absorbent layer can be heat embossing or hot-melt type adhesive alone or in combination. When using the auxiliary pad, if it has a bonding strength that can keep the expansion of the bending area constant, it can be used without particular limitation. Here, assuming the time of wetting with a body fluid, it is preferable to use heat embossing alone or to use a combination of heat embossing and hot melt type adhesive.

[0 0 8 8]

[Constituent materials]

The covering material for covering the absorber can be properly used depending on the wearer's intention. For example, if the wearer has a strong awareness of the amount of bodily fluid excreted, the absorbent body is enclosed by the water-permeable front sheet facing the body ^ and the water-permeable back sheet facing the clothing side. An auxiliary pad composed of an absorbent layer composed of: a form in which the peripheral portions are joined together, or a form in which the peripheral parts are joined together in a state in which the absorbent body is enclosed by a water-permeable sheet can be used. With such a configuration of the covering material, the body fluid absorbed by the auxiliary pad can be transferred to a sanitary napkin or the like to be used in combination, so that the body fluid absorbed by the auxiliary pad can be transferred to the auxiliary pad. It is difficult to exceed its own maximum absorption capacity. As a result, it is possible to prevent the outflow of bodily fluids even when worn for a long time or when excreting a large amount.

In such a case, it is preferable that the regulating sheet that regulates the spread of the bending region is also a water-permeable sheet in order to smoothly transfer the body fluid to the sanitary napkin or the like.

On the other hand, if the wearer has a small amount of excretion, but has a strong awareness of the leakage caused by body fluid flowing down the skin, the water-permeable front sheet facing the body and the water-impermeable face facing the clothes It is possible to use an auxiliary pad formed of an absorbing layer having a form in which the peripheral portion is joined in a state in which the absorbent body is enclosed by the back surface side sheet. Such an auxiliary pad By attaching the to the place where leakage usually occurs, the leakage can be effectively prevented.

In this connection, since the auxiliary pad itself can absorb and hold the body fluid, the body fluid can be reduced from adhering to an absorbent article such as a sanitary napkin used in combination. This can reduce the frequency of replacing with a new napkin by replacing only the auxiliary pad, which is economical and can reduce the complexity of replacement.

As the water-permeable front-side sheet, any sheet-like material having a structure permeable to liquid, such as a woven fabric, a nonwoven fabric, or a perforated plastic sheet, can be used without particular limitation. As the material of the woven or nonwoven fabric, any of natural fibers and chemical fibers can be used. Examples of natural fibers include milled panorep and cenorellose such as cotton. Examples of the chemical fiber include regenerated cellulose such as rayon and fibril rayon, semi-synthetic cellulose such as acetate and triacetate, and thermoplastic hydrophobic chemical fiber which has been subjected to a hydrophilic treatment. Examples of the thermoplastic hydrophobic chemical fiber include a single fiber such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET), a fiber obtained by graft-polymerizing PE and PP, or a core material made of PP or PET. And a composite fiber having a sheath portion of PE.

In the case of non-woven fabrics in particular, web forming may be performed by a dry method (card method, spun-pound method, meltblown method, air-laid method, etc.), a wet method, or a combination of a plurality of methods. Examples of the bonding method include methods such as thermal bonding, needle punching, and chemical bonding, but are not particularly limited to these methods. Spunlace formed into a sheet by the hydroentanglement method May be used. ·

As the perforated plastic sheet, a perforated sheet of a thermoplastic resin such as PE, PP, or PET, a porous foam material, or the like can be used. In addition, it is also preferable to use a filter made of titanium oxide, calcium carbonate, or the like, if necessary, by adding a filler in the range of 0.5 to 10% by mass to make it cloudy. Further, a perforated film obtained by perforating a film made of the thermoplastic resin by perforation, heat embossing, machining, or the like may be used. Perforated films may be used as composite sheets with non-woven fabrics.

A more specific configuration of the water-permeable sheet is 5 to 30%, considering that it is superior in absorbing menstrual blood that flows out and that it has less chemical irritation and is more comfortable to wear. the combined fibers were entangled by water flow with a rayon or acetate 7 0-9 5% of the specific rate, basis weight ^{2 0~ 5 0 g / m 2} , a thickness from 0.3 to 1. select the spunlace nonwoven O mm It is preferable to do so. The fiber length of the fiber used is 15 to 60 mm for cotton, 25 to 51 mm for rayon or acetate, and the fineness is generally 1.5 to 6 dtex. To be elected.

The absorber should be capable of absorbing and retaining a liquid (body fluid), and is preferably bulky, hard to lose its shape, and has little chemical irritation. Materials include cellulose (crushed pulp, cotton, etc.), regenerated cellulose (rayon, fibril rayon, etc.), semi-synthetic cellulose (acetate, triacetate, etc.), particulate polymer absorbent, fibrous polymer absorbent, Chemical fibers (such as those obtained by subjecting a thermoplastic hydrophobic chemical fiber to a hydrophilic treatment), airlaid pulp treated with a chemical bond, and a hydrophilic resin can be used alone or in combination. In addition, a cellulose foam, a continuous foam of a synthetic resin, or the like can also be used as the absorber. Further, it is also possible to use a foam which is molded into an absorber after being powder-framed.

The method of forming these materials into an absorber is not particularly limited. For example, a sheet formed by an airlaid method, a meltblown method, a spunlace method, a papermaking method, or the like is used.

As a more specific configuration of the absorber, a mixture or ratio of 60 to 90% of a rate or acetate selected from the range of 1 to 4 dte X and 10 to 40% of a fibrous polymer absorber is used. the laminated fiber entangling by needling, and a nonwoven fabric sheet one bets with a bulk of the mass per unit area ^{5 0~2 5 0 g Zm 2 2~} 5 mm was sheet of.

When a water-permeable material is used, the same material as the front-side sheet can be used for the back-side sheet.

In addition, when a non-reachable material is used for the back side sheet, it is possible to prevent the body fluid held by the absorber from leaking to the outside of the auxiliary pad. Furthermore, by using a moisture-permeable material, it is possible to reduce stuffiness at the time of wearing, and it is possible to reduce discomfort at the time of wearing. Water-impermeable film mainly made of PP, PP, etc., air-permeable resin film, water-repellent spun bond or spun lace or other non-woven fabric with air-permeable resin film bonded to the back surface are preferably used. Can be. The case is not liquid permeable material, used in consideration of the flexibility, for example, low density polyethylene having a basis weight 1 resin as a main component 5 to 3 0 g Zm off Irumu obtained from ² of the range that does not impair the wearing comfort Is preferred. <Regulation sheet>

The material used for the regulation sheet is capable of continuing to regulate the expansion of the bending area when the auxiliary pad is used, and is provided with an adhesive portion for fastening to the absorbent article used in combination. In this case, it is preferable to select the sheet in consideration of the strength of the sheet so as not to break. For example, a non-woven fabric sheet, an elastic stretch non-woven fabric, a film, a foam film, an elastic stretch film, a foam sheet, a thin paper, or the like can be selected alone or a laminate of these. More specifically, a film having a thickness of 15 to 30 mainly composed of a low-density polyethylene resin can be selected.

In addition, it is also useful that the regulation sheet has an extensibility in the short direction of the absorbent layer so as not to prevent the combined use of the absorbent article such as a sanitary napkin from being appropriately deformed when worn. .

In order to give the control sheet extensibility, the stress at 5% elongation at constant speed elongation at a grip interval of 100 mm and an elongation speed of 100 Om mZ is 0.

An extensible spunbond nonwoven fabric having a thickness of 1 to 0.5 N / 25 mm can be used.

Glue joint>

The “adhesive part” can be formed by applying an adhesive to the clothing side of the regulation sheet. The adhesive that can be used in the present invention is considered to have an adhesive strength such that the auxiliary pad does not peel off from the sanitary napkin or the like used together when the auxiliary pad is used. It is preferable to select from the group consisting of a water-soluble polymer, a crosslinking agent, a plasticizer, and a gel adhesive composed of water. More specifically, examples of water-soluble polymers include gelatin, sodium polyacrylate, polybutyl alcohol,

'Loose etc. is an example of a crosslinking agent. 2020

And water-soluble metal salts such as magnesium sulfate. Examples of plasticizers include glycerin, wax, and paraffin.

In addition, a pressure-sensitive hot melt adhesive can also be used as an adhesive for forming an adhesive portion. The pressure-sensitive hot-melt adhesives are styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), styrene-ethylene-butadiene-styrene block copolymer (SEBS). The main component is a synthetic rubber resin such as styrene-ethylene-propylene-propylene-styrene block copolymer (SEP S), and melt-blended with an adhesive agent such as terpene resin or rosin resin and a plasticizer such as wax. It can be obtained by:

Further, a silicone resin-based adhesive can be used. The silicone resin-based adhesive is mainly composed of silicone resin and fluorine resin, and is mixed with a cross-linking agent such as metal salts such as platinum, molybdenum and antimony, and a plasticizer such as ester wax, glycerin and machine oil. And the like.

As described above, there are many types of adhesives for forming an adhesive portion. However, in consideration of application stability, it is preferable to use a pressure-sensitive hot melt adhesive. As a pressure-sensitive hot-melt adhesive with high coating stability, 15 to 25% by mass of SEBS, 15 to 35% by mass of plasticizer, and 40 to 70% by mass of adhesion promoter are melt-mixed. What was done. For the pressure-sensitive hot melt adhesive, an antioxidant, an anti-fluorescent agent and the like may be added in the range of 0.1 to 1.0% by mass.

Examples of a method of disposing the adhesive in the bonding portion include a planar shape, a dot shape, a mesh shape, and a streak shape. To ensure that the napkin does not deviate from the napkin used together, as an example, apply a pressure-sensitive hot-melt adhesive in a 5 to 15 mm wide 2020

It is preferable that the coating be performed in the range of 20 to 70 g / m ² and the length of 30 to 10 O mm on both sides.

It is preferable that the adhesive portion is covered with a sheet obtained by coating a thin paper generally used as a release paper with a silicone resin or a sheet obtained by coating a plastic film with a silicone resin. By doing so, it is possible to prevent the adhesive portion from being stained or peeled during storage.

Elastic member>

As the elastic member, for example, an elastomer component, a foam such as foamed polyethylene, or the like can be used alone or in a mixture at a predetermined ratio. Specifically, the elastomer single-component 1 0-9 0% by weight, preferably preferably those containing in a range of 1 5 to 6 0 mass ^_0/0. If the amount is less than 10% by mass, a sufficient compression recovery rate cannot be obtained. If the amount is 90% by mass or more, the remarkable improvement in the compression recovery rate cannot be seen, but there is a problem that sheet forming becomes difficult. .

Examples of the elastomer component include polyester-based, urethane-based, olefin-based, styrene-based, and polyamide-based thermoplastic elastomers, low-density polyethylene using a metallocene catalyst, and ethylene- _α -olefin copolymer. These components may be used alone or in a suitable mixture.

Examples of the polyester-based elastomer include those in which an aromatic polyester is used as a hard segment and an amorphous polyether or an aliphatic polyester is used as a soft segment. Polyurethane-based elastomers include polyurethanes composed of polyester, low molecular weight glycol, methylenebisphenylisosinate, etc.Specifically, polyisatanate ester polyol is mixed with polyisocyanate in the presence of a short-chain polyol. Additional weight 020

28. ·

Examples of the olefin-based elastomer include an ethylene-α-refined random copolymer and a copolymer obtained by copolymerizing gen as a third component. Styrene-based elastomers include block copolymers such as SEBS, SIS, SEPS, and SBS. Examples of polyamide-based elastomers include nylon as a hard segment and polyester or polyol as a soft segment.

A high-density polyethylene, a low-density polyethylene, a linear low-density polyethylene, or the like may be blended in the constituent polymer of one component of the elastomer in order to stabilize the molding of the elastic material. Furthermore, an anti-blocking agent, an ultraviolet absorber, a thickening branching agent, an anti-glazing agent, and various other improving agents can be added.

The elastic member may be formed of an aggregate of fibrous materials. The aggregate of fibrous materials can be composed of one elastomer component and one non-elastomer component, and is preferable in that the obtained elastic member has excellent compression recovery properties and can fuse fibers with each other by heat during molding. Examples of the non-elastomer component in the aggregate of the fibrous material include a polyester component such as polyethylene terephthalate and polybutylene terephthalate, an olefin component such as polyethylene and polypropylene, and further, nylon and acrylic. The non-elastomer constituent polymer may contain an ultraviolet absorber, a thickener branching agent, an anti-glare agent, a coloring agent, and various other improving agents.

The basis weight is preferably in the range of 100 to 100 g Zm ² . If it is less than this range, the compression recovery rate and the resilience of the elastic member decrease, making it difficult for the absorbing layer to follow the change in the gap shape. On the other hand, if it exceeds this range, the rigidity is increased, giving the wearer a feeling of foreign matter. It is preferable that the elastic member has a compression recovery ratio of 50% or more and a repulsion force in the range of 490 to 4900 Pa at 50% compression. If it is less than this range, the repulsive force is completely buffered by the absorber. If the thickness exceeds this range, the wearer's skin is pressed more than necessary, not only giving the wearer a foreign-body sensation, but also making it difficult for the user to freely change the movement. The compression recovery rate and repulsion were measured using the KES compression characteristics FB-3 AUTO-AT ester (trade name) manufactured by Kato Tech Co., Ltd. The measurement conditions were a terminal area of 2 cm ² , a maximum load of 4900 Pa, and a speed of 50 sec Zmm. The value was measured by setting a test piece cut to 10 OmmX 10 Omm on a test table.

In addition, even an aggregate formed from a fibrous material consisting of only one non-elastomer component may satisfy the above-mentioned basis weight, compression recovery rate, and resilience. An example of such a nonwoven fabric is a nonwoven fabric formed to have a high bulk.For example, an eccentric PE / PP fiber having a fineness of 4.4 dtex and a fiber length of 51 mm is used, and a non-woven fabric is formed by a through air method. The nonwoven fabric adjusted to a basis weight of 50 g / m ² and a thickness of 5 mm can satisfy the above-mentioned compression recovery rate and repulsion. Thus, an aggregate of fibrous materials consisting of only one non-elastomer component can be used as the elastic member in the present invention.

[Configuration of auxiliary pad provided with biodegradability, water dispersibility, and water solubility] The auxiliary pad of the present invention may be formed of a biodegradable material and Z or a water dispersible material and / or a water soluble material. In such a configuration, since the auxiliary pad can be dropped into the toilet as it is after use, the auxiliary pad can be discarded easily and cleanly, thereby reducing trash in the toilet. You can also.

As used herein, “biodegradable” means anaerobic or aerobic in accordance with natural processes in the presence of bacteria, including actinomycetes, and other microorganisms. 2020

30 Decomposition of a substance into gas, such as carbon dioxide or methane, water and biomass under sexual conditions. Biodegradability (biodegradation rate, degree of biodegradation, etc.) of the substance Power Naturally occurring materials such as fallen leaves Or comparable to a synthetic polymer generally recognized as biodegradable in the same environment. “Water dispersibility” has the same meaning as water disintegration, and has no effect on the limited amount of water (menstrual blood) during use, but in a large amount of water or water flow, at least fibers are separated from each other. It is easily dispersed into small pieces that do not block general toilet piping. “Water-soluble” refers to the property of being unaffected by a limited amount of water (menstrual blood) during use, but soluble in large amounts of water or water. .

<Water-permeable sheet>

As a material that can be used for the water-permeable sheet, a spunlaced nonwoven fabric and a wet spunlaced nonwoven fabric whose fiber length is selected from a range of 1 to 15 mm can be used. As another material, a biodegradable resin by hydrolysis such as polylactic acid or polybutylene succinate can be used. For example, basis weight 2 0~ 6 0 g / m meltblown nonwoven is adjusted in the ^second range and having a basis weight of 1 5~ 3 0 g / m ² range, made of poly轧酸as a raw material, the fiber thickness 1. Spunbond nonwoven fabric adjusted in the range of 1 to 3.3 dte X is mentioned. The nonwoven fabric material may or may not be perforated.

Other materials acetate, and adjust the synthetic fiber tow is a continuous fiber ί隹alone or laminate in a range of basis weight 5 0~ 3 0 0 g / m 2, used by fibrillated fibers to each other You can also.

Absorber> '

As a material that can be used for the absorber, a nonwoven fabric sheet obtained from needling can be used. It should be noted that the biodegradability of Considering, it is preferable to use carboxymethylcellulose fiber

Materials that can be used for the water-impermeable sheet include PVA films, film sheets that have been water-repellent on one or both sides of PVA film, or partially with silicone, PVA films mixed with silicone, starch films. Laminated paper with a film or tissue made from a biodegradable resin obtained by hydrolysis of polylactic acid or polybutylene succinate can be used. If necessary, coloring may be performed by mixing inorganic pigments in the range of 0.1 to 5 ° / ₀ .

In consideration of maintaining leakproofness under humid conditions and not applying an excessive load to the purification layer, a film made of polylactic acid as a raw material should be used in a thickness range of 10 to 20 microns. Laminated paper provided with a tissue selected from the range of 5 to 20 g Zm ² and provided with a lamination area ratio in the range of 5 to 40% during lamination is preferable.

Materials that can be used for the regulation sheet include films made from biodegradable materials such as polylactic acid and polybutylene succinate, spunbonded nonwoven fabrics, meltblown nonwoven fabrics, etc., films made from water-soluble materials such as PVA and CMC, and nonwoven fabrics And water-dispersible tissues mainly composed of cellulose fibers, regenerated cellulose fibers and the like, spunlaced nonwoven fabrics and the like.

Preferably, a spunbonded nonwoven fabric or a melt blown nonwoven fabric mainly composed of biodegradable material, thickness is 0. 1~3. 3 dtex range, range basis weight of 1 5~4 0 g / m ² This is a sheet adjusted to a certain level, and can be obtained by performing the mechanical korgut processing in advance. 12020

32

As the joining method, a joining method such as adhesion using water-soluble or water-swellable polyvinyl alcohol, heat sealing, or joining by hydrogen bonding can be used alone or in an appropriate combination.

Examples of the elastic member include natural rubber (cis-1,4-polyisoprene). Industrial applicability

As described above, according to the auxiliary pad according to the present invention, the auxiliary pad itself deforms with respect to the behavior of the wearer and the external pressure when worn, and is used together with an absorbent article such as a napkin for science. It is possible to prevent the generation of a gap between the wearer's inner thighs and to effectively prevent leakage of body fluid while providing a suitable wearing feeling.

Claims

The scope of the claims

1. An auxiliary pad for attaching an absorbent article having liquid absorbency, which has liquid absorbency and has a body side facing the wearer's body and an anti-body side facing the absorbent article when worn. It has a bending area that is convex toward the body side of the wearer,

The bending area is provided with a maintaining means for maintaining the bending state of the bending area,

An auxiliary pad, wherein an adhesive portion for adhering to the absorbent article is provided on a bottom portion on the side opposite to the body of the bent region.

2. The maintaining means is a regulating sheet provided so as to extend from one skirt portion to the other hem portion of the bending region, and the regulating sheet restricts the spread of the bending region so that the bending state is achieved. 2. The auxiliary pad according to claim 1, wherein maintenance of the auxiliary pad is performed.

3. The auxiliary pad according to claim 1, wherein the regulation sheet is provided for a part of the bending region.

4. The auxiliary pad according to claim 2, wherein the bonding portion is provided on a side opposite to the body of the regulation sheet.

5. A flat region extending outward from the ends of the both skirts and in contact with the body at the time of wearing is connected to both skirts of the bending region. The auxiliary pad according to any one of the above items.

6. The auxiliary pad according to any one of claims 1 to 5, wherein the auxiliary pad has elasticity.

7. The auxiliary pad according to any one of claims 1 to 6, wherein the auxiliary pad has a bending stiffness value of 1.5 m NZ 25 mm or less. Do.

8. The auxiliary pad according to any one of claims 1 to 7, wherein the auxiliary pad has a substantially vertically long shape, and has a longitudinal direction and a lateral direction. Auxiliary pad.

9. The bending area according to claim 8, wherein the height of the top of the bending area gradually increases from one end to the other end in the longitudinal direction. The auxiliary pad described in the item.

10. The auxiliary pad according to claim 8, wherein both sides located on the left and right sides with respect to the longitudinal direction as a central axis form waist portions depressed toward the central axis. 10. Auxiliary pad according to paragraph 9 or

11. The auxiliary pad according to any one of claims 1 to 10, wherein the auxiliary pad is an inter-auxiliary pad for urinary incontinence.

12. The auxiliary pad according to any one of claims 1 to 10, wherein the auxiliary pad is an auxiliary pad for absorbing vaginal discharge.