JP5710956B2 - Sanitary napkin - Google Patents

Description

The present invention relates to an absorbent article that absorbs women's menstrual blood, vaginal discharge, and the like, and more particularly, to a sanitary napkin in which an absorbent element is three-dimensionally raised so as to be closely attached to a wearer's excretory part.

Among well-known sanitary napkins that have been marketed in the past, generally well-known ones include an absorbent element that absorbs menstrual blood and the like, a liquid-permeable surface sheet provided on the skin side surface of the absorbent element, It consists of a liquid-impermeable back sheet provided on the shorts side surface of the absorbent element.

When the sanitary napkin is worn, the wearer's foot pressure causes kinking, and a gap is formed between the sanitary napkin and the wearer's blood outlet. When the warp occurs, the sanitary napkin does not perform its original function, and menstrual blood or the like may leak out, which may contaminate shorts or clothing. In addition, the warp also causes a sense of discomfort felt by the wearer.
When a large gap is generated between the sanitary napkin and the wearer's blood drainage port, the sanitary napkin is often warped due to the foot pressure of the wearer. When the warp occurs, the absorbent article does not perform its original function, and menstrual blood or the like may leak out, which may contaminate shorts or clothing.

In order to prevent such leakage, a method of three-dimensionally raising the absorbent element of the sanitary napkin to the skin side to prevent warping is disclosed.
For example, the sanitary napkin described in Patent Document 1 below has grooves substantially symmetrical with respect to the center line extending in the longitudinal direction and the center line extending in the width direction of the absorbent body. The groove is formed to be convexly curved outward in the width direction of the absorber.
When the wearer wears the sanitary napkin , the sanitary napkin receives a compressive force from left and right inward in the width direction due to foot pressure. Of the portion surrounded by the groove, the portion located at the outermost portion in the width direction receives the compressive force, transmits the compressive force over the longitudinal direction of the groove, and the portion surrounded by the groove rises. .

Moreover, the sanitary napkin of the following patent document 2 has arrange | positioned the elastic elastic sheet between the absorber and the liquid-impermeable sheet. The elastic stretch sheet is disposed in a direction orthogonal to the longitudinal direction of the absorber.
The wearer folds the wing portion including the elastic stretchable sheet and fixes it to the shorts. And the said absorber protrudes toward a wearer's skin side direction by the shrinkage effect | action of the width direction of the said elastic elastic sheet.

JP 2006-325639 A JP 2002-369837 A

Since the sanitary napkin described in Patent Document 1 does not have elastic force in the absorbent body, the inner side of the absorbent body surrounded by the groove is likely to occur.
The sanitary napkin described in Patent Document 2 is provided with a liquid-impervious sheet on the shorts side of the elastic shrinkable sheet, and the liquid-impervious sheet and the shorts are adhered to each other by an adhesive means for preventing misalignment. ing. When the sanitary napkin contracts due to the contraction force of the elastic contractile sheet, the liquid-impervious sheet is also swelled and contracts together. Since the adhesive means is not so strong, the contraction of the liquid-impervious sheet and the shorts is peeled off by the contraction, and the effect of preventing the adhesive means from shifting is reduced.

Therefore, the object of the present invention is to increase the degree of occurrence of distortion by raising the absorbent body more convexly toward the skin side at the time of wearing without lowering the slip prevention effect of the adhesive means. An object of the present invention is to provide a sanitary napkin that is reduced and has a better fit.

As the present invention according to claim 1 for solving the above-mentioned problem, in a sanitary napkin provided with an absorbent element between a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of first embosses formed on both sides of the longitudinal center line of the absorbent element, approximately symmetrically with respect to the center line, and formed in a convex shape toward the longitudinal center line side;
A pair of second portions formed on both sides of the longitudinal center line of the absorbent element so as to be substantially symmetrical with respect to the center line as a convex from the longitudinal center line side toward the width direction outer side of the absorbent element. With embossing,
With respect to the center line, the second emboss is arranged outside the first emboss so as to sandwich the blood drainage port corresponding part corresponding to the blood drainage port of the wearer ,
The second emboss extends in the front-rear direction from the first emboss and is formed to have a longer length in the longitudinal direction.
One end and the other end in the longitudinal direction of one second emboss constituting the pair are one end and the other end in the longitudinal direction of the other second emboss constituting the pair. Are spaced apart in the width direction,
The fixing means provided on the liquid-impervious back sheet for fixing the sanitary napkin and the shorts are positioned in the middle in the width direction of the outer fixing means and the outer fixing means positioned outside the first embosses. There is provided a sanitary napkin having a center fixing means, wherein the center fixing means is provided at a longitudinal front and rear position of the first emboss so as not to overlap the first emboss .

(Function and effect)
According to invention of Claim 1 , when a wearer wears the said absorbent article, foot pressure is applied toward the inner side from the left-right width direction outer side of the said absorbent article. First, the foot pressure is received by a groove located on the outermost side of the sanitary napkin in the second emboss. And the said foot pressure is transmitted over the whole longitudinal direction of said 2nd embossing, and the part pinched | interposed into a pair of said 2nd embossing protrudes.
Further, the foot pressure that could not be received by the second emboss is received by the groove of the first emboss facing the groove located at the outermost portion in the width direction of the second emboss. And the said foot pressure is transmitted over the whole longitudinal direction of said 1st embossing. Thereby, the part pinched | interposed into a pair of said 1st embossing further protrudes.
Therefore, compared with the case where only the second emboss is provided and the first emboss is not provided, the sanitary napkin has a more three-dimensional bulge, and the warped portion is distorted between the second embosses. There is an effect that it becomes difficult to fit and the fitting property to the blood drainage part of the wearer becomes higher.
The pair of second embosses raises the blood discharge port corresponding part sandwiched between the pair of second embosses, and the raised part fits near the blood discharge port of the wearer, so that menstrual blood can be effectively used. Leakage can be prevented.
The second embossing, the longitudinal length Ru is longer and extends in the longitudinal direction than the first embossed.
Menstrual blood or the like that has flowed out of the blood drainage port of the wearer first spreads in the longitudinal direction along the groove of the first emboss. Menstrual blood that cannot be absorbed by the absorbent element located in the vicinity of the first emboss flows to the second emboss located outside in the width direction of the absorbent element. And it spreads back and forth in the longitudinal direction along the groove of the second emboss which is longer in the longitudinal direction than the first emboss. Therefore, menstrual blood that cannot be absorbed by the absorbent element located near the first emboss is absorbed by the absorbent element located near the second emboss, thus effectively preventing leakage of menstrual blood and the like. be able to.

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As an invention according to claim 2 for solving the above-mentioned problem, there is provided a sanitary napkin according to claim 1 , wherein an end point of the first emboss is separated from the second emboss.

(Function and effect)
When the end point of the first embossing and the second embossing intersect, the absorbing element near the intersection becomes hard. According to the invention which concerns on Claim 2, since such hardness does not generate | occur | produce, when the sanitary napkin is worn, the wearer feels comfortable.

The invention according to claim 3 for solving the above-described problem provides a sanitary napkin according to claim 1 or 2 , wherein a third emboss is provided between the first emboss and the second emboss.

(Function and effect)
By providing the third emboss, the portion surrounded by the first emboss and the second emboss rises more three-dimensionally than when the third emboss is not provided. Therefore, the fit feeling of the wearer with respect to the blood drainage port can be further improved.

As invention which concerns on Claim 4 for solving the said subject, at least one of said 1st embossing and said 3rd embossing consists of an embossing point ,
The second embossing consists embossing points,
The sanitary napkin according to claim 3 , wherein an interval between at least one embossing point of the first embossing and the third embossing is smaller than an interval between the embossing points of the second embossing.

(Function and effect)
Generally, the closer the distance between the emboss points, the harder the absorbent element near the emboss points. According to invention of Claim 4, since the said absorption element of the vicinity of at least one of said 1st embossing and said 3rd embossing does not become hard, a wearer's feeling which a wearer feels when wearing said sanitary napkin. It doesn't get worse. In addition, the interval between the second embossed points is closer than the interval between the embossed points of at least one of the first embossed and the third embossed, so that liquid such as menstrual blood can be grooved in the second embossed point. Can flow quickly back and forth in the longitudinal direction, and leakage of menstrual blood and other shorts can be prevented.

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As invention which concerns on Claim 5 for solving the above-mentioned subject, without providing the 1st embossing in the liquid-permeable surface sheet, providing only in the absorption element,
The sanitary napkin according to claim 1, wherein the second emboss is provided on the liquid-permeable surface sheet and the absorbent element.

(Function and effect)
As described above, when embossing is provided on the liquid-permeable surface sheet or the absorbent element, the embossed portion becomes hard. Therefore, not only the comfort when the sanitary napkin is worn is deteriorated, but also the liquid permeability of the liquid permeable surface sheet and the liquid absorbability of the absorbent element are lowered.
According to invention of Claim 5 , since the said 1st embossing is not provided in the said liquid-permeable surface sheet, the liquid permeability of the said liquid-permeable surface sheet of the said 1st embossing periphery is not impaired. Moreover, since the said embossing element is provided with said 1st embossing, the liquid absorptivity of the said absorption element falls. However, the first emboss is necessary for the configuration of the present invention because it has the purpose of raising the absorbing element sandwiched between the pair of first embosses.
In addition, said 2nd embossing is provided in both the said liquid-permeable surface sheet and the said absorption element. Thereby, the liquid permeability of the liquid-permeable surface sheet is lowered, but in order to prevent liquid such as menstrual blood from leaking outward in the width direction from the second emboss, the second emboss is removed from the liquid-permeable surface. It is also necessary to guide the liquid to the front and back in the longitudinal direction of the second embossment, also on the sheet.

According to the sanitary napkin of the present invention, distortion does not occur by causing the absorbent body to protrude more three-dimensionally toward the skin side during wearing without reducing the slip prevention effect of the adhesive means. The sanitary napkin which reduces a degree and has the more excellent fitting property can be provided.

It is a top view of the sanitary napkin concerning this invention. It is a top view of the sanitary napkin concerning this invention, and is the figure which provided the 3rd embossing. It is a top view of the sanitary napkin concerning this invention, and is a figure showing the position of the adhering means. It is sectional drawing of the sanitary napkin concerning this invention. It is sectional drawing of the sanitary napkin concerning this invention. It is a top view of the sanitary napkin concerning this invention, and is a figure showing the positional relationship of a 1st embossing and a 2nd embossing. It is sectional drawing of the 1st embossing, the 2nd embossing, and the 3rd embossing which were formed in the sanitary napkin concerning this invention. It is a modification of the shape of the 1st embossing and 2nd embossing concerning this invention.

  Hereinafter, preferable this embodiment of the absorbent article of this invention is described, referring FIGS. 1-6.

  The absorbent article of the embodiment of the present invention is a sanitary napkin 1 and includes a liquid-impervious sheet 2 and a liquid-permeable sheet 3 as shown in FIG. An absorbent element 6 is sandwiched between the liquid-permeable surface sheets 3. When the sanitary napkin 1 is worn, the liquid-impermeable back sheet 2 is in contact with the shorts 16 and the liquid-permeable surface sheet 3 is in contact with the wearer's skin.

  The absorbent element 6 is provided for the purpose of absorbing the menstrual blood of the wearer, and is provided so as to wrap the absorbent body 4 composed of a material such as cotton-like pulp or synthetic pulp. It consists of crepe paper 5. The crepe paper 5 is provided to diffuse liquid such as menstrual blood and prevent the liquid from returning to the skin side. The liquid-permeable surface sheet 3 is provided for the purpose of allowing the menstrual blood generated from a wearer to permeate the absorbent element 6, is configured in a mesh shape, and has a water repellent finish on the surface. Has been. Furthermore, the liquid-impermeable back sheet 2 is provided for the purpose of preventing menstrual blood or the like absorbed by the absorbent element 6 from bleeding into the shorts 16, from a polyethylene sheet or a polypropylene sheet. Become.

  As the liquid-permeable surface sheet 3, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. As the material fibers constituting the nonwoven fabric, for example, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used. Nonwoven fabrics obtained by appropriate processing methods such as a lace method, a spun bond method, a thermal bond method, a chemical bond method, a melt blown method, and a needle punch method can be used. Of these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is superior in terms of being sublime and soft.

  The area of the absorbent element 6 is smaller than the liquid-impervious back sheet 2 and the liquid-permeable top sheet 3. The absorbent element 6 is located substantially at the center of the liquid-impervious sheet 2 and the liquid-permeable sheet 3, and the edges of the absorbent element 6 are the liquid-impervious back sheet 2 and the liquid-permeable sheet. The surface sheet 3 is separated from the end side by a predetermined distance. A portion where the liquid-impervious backsheet 2 and the liquid-permeable topsheet 3 are in direct contact with each other without sandwiching the absorbent element 6, and a portion in the outer extension of the absorbent element 6 is referred to as an extended portion 7. The outer extension 7 is bonded by hot melt or heat sealing.

  In the sanitary napkin 1 of FIG. 1, the extension portion 7 has a wing portion W that protrudes in a convex shape from the center in the longitudinal direction toward the outer side in the width direction, but the physiology that does not have the wing portion W. The present invention is applied to the napkin 1 for use.

Next, embossing will be described.
Here, the embossing means that one surface of the heat-applied part is heated by applying heat to the part to be processed of the absorbent element 6, the liquid-impervious back sheet 2 or the liquid-permeable front sheet 3. A groove formed by being pushed toward the opposite surface. In addition, it is common to form the said groove | channel so that the said absorption element 6, the said liquid-impermeable back sheet 2, and the said liquid-permeable surface sheet 3 may not be penetrated.

  Examples of the emboss include those composed only of point-like grooves, those composed only of linear grooves, and those provided with point-like grooves in linear grooves. As a method for forming an emboss consisting of only point-like grooves, for example, a metal portion protruding in a dot shape is provided on the surface of a cylindrical metal roller, and the roller is pressed against the absorbing element 6 or the like. There is something to do. Moreover, as a method of forming the emboss which consists only of a linear groove | channel, for example, the metal part which protruded linearly on the surface of a cylindrical metal roller is provided, and the said roller is pressed against the said absorption element 6 etc. There is something to be formed by. Furthermore, as a method of forming an emboss in which a dotted groove is provided in a linear groove, for example, a metal portion protruding linearly is provided on the surface of a cylindrical metal roller, and the embossed There are some which are formed by providing a metal portion protruding in a dot shape outside the metal portion protruding linearly and pressing the roller against the absorbing element 6 or the like.

FIG. 7 is a cross-sectional view of the sanitary napkin 1, and more specifically, a cross-sectional view when cut along the longitudinal direction of each emboss of the first emboss 15, the second emboss 10, and the third emboss 18.
The first emboss 15 and the third emboss 18 are made up of only point-like grooves as shown in FIG. 7A, or made up of only linear grooves as shown in FIG. 7B.
On the other hand, the second emboss 10 is composed of only the point-like grooves in FIG. 7 (c), or the point-like grooves are provided in the line-like grooves as shown in FIG. 7 (d). .
(A) and (c) of FIG. 7 show embosses composed only of point-like grooves, and pressure is applied only to the portions that become point-like grooves during manufacturing. It seems that only the part is recessed toward the lower side of FIG. 7 (from the surface side in contact with the skin of the liquid-permeable surface sheet 3 toward the absorbent element 6). However, in actuality, the permeable surface sheet 3 and the absorbent element 6 between the punctiform grooves are also affected by the pressure that the punctiform grooves are depressed downward in FIG. Sink a little downward. Therefore, in practice, as shown in FIG. 7, the liquid-permeable surface sheet 3 and the absorbent element 6 between the dotted grooves are also slightly sunk downward in FIG. 7.
Further, in the present specification, among the embosses composed of point-like grooves, each groove of the point-like grooves is referred to as an emboss point, and among the embosses composed of linear grooves, the line-like grooves are referred to as emboss lines. That's it.

  As shown in FIG. 1, the sanitary napkin 1 of the present embodiment is provided with a first emboss 15 and a second emboss 10 on the liquid-permeable surface sheet 2 and the absorbent element 6. The first emboss 15 is provided substantially in the width direction with reference to the longitudinal center line CL of the absorbent element 6. Further, the second emboss 10 is also provided substantially in the width direction with the longitudinal center line CL of the absorbent element 6 as a reference.

The portion of the sanitary napkin 1 that contacts the blood outlet of the wearer is referred to as a blood outlet corresponding portion R1. The position of the blood drainage port varies depending on the wearer, but for example, by collecting data on women in the age group who are customers of the sanitary napkin by marketing etc., calculate the average value of the position of the blood drainage port, The average value can be used as the blood outlet of the present invention. In this way, the part that contacts the specified blood drainage port is identified as the blood drainage port corresponding part R1. As shown in FIG. 1, the blood discharge port corresponding part R <b> 1 has an elliptical shape in which the diameter of the absorption element 6 in the longitudinal direction is longer than the diameter of the absorption element 6 in the width direction.
Further, in the longitudinal direction of the sanitary napkin 1, a perineum R2 is provided on the rear side of R1.

  The first emboss 15 is formed in a convex shape from the outer side in the width direction of the absorbent element 6 toward the longitudinal center line CL with respect to the longitudinal center line CL. More specifically, for example, as shown in FIG. In the example of FIG. 1, it arrange | positions so that the intermediate part of the said 1st embossing 15 may overlap with a part of blood discharge port corresponding | compatible part R1, and the edge part of the said 1st emboss 15 does not overlap with the blood discharge port corresponding | compatible part R1. Are arranged as follows.

The shape of the first emboss 15 in the present invention is not limited to the above shape. For example, a part of the first emboss 15 is directed from the longitudinal center line CL side of the absorbent element 6 toward the outer side in the width direction. It may be formed in a convex shape.
Moreover, it arrange | positions on the width direction outer side of the said blood outlet corresponding part R1 on the basis of the longitudinal centerline CL so that the intermediate part of the said 1st embossing 15 may not overlap with a part of said blood outlet corresponding part R1. It may be a thing.

  Next, the second emboss 10 is formed in a convex shape from the longitudinal center line CL side toward the outside in the width direction of the absorbent element 6 with respect to the longitudinal center line CL. More specifically, for example, as shown in FIG. In this example, it arrange | positions so that the said 2nd embossing 10 may not overlap with the blood discharge port corresponding | compatible part R1. And it arrange | positions so that the said 2nd embossing 10 may pinch | interpose the said blood-evacuation port corresponding | compatible part R1 on the said longitudinal direction center line CL from right and left.

The shape of the second emboss 10 in the present invention is not limited to the above shape. For example, a part of the second emboss 10 is outside in the width direction of the absorbent element 6 with respect to the longitudinal center line CL. Alternatively, it may be formed in a convex shape toward the longitudinal center line CL.
Moreover, you may make it the intermediate part of the said 2nd embossing 10 overlap with a part of said blood discharge port corresponding | compatible part R1.

  Next, it is desirable that the end point of the first emboss 15 is separated from the second emboss 10 as shown in FIG. As described above, when the end point of the first emboss 15 and the second emboss 10 intersect, the absorbent element 6 near the intersection becomes hard. This is because such hardness leads to deterioration of the wearing comfort felt by the wearer of the absorbent article, and such deterioration can be prevented.

  Further, the second emboss 10 is preferably formed so as to extend long in the longitudinal direction of the absorbent element 6. By forming in this way, liquid such as menstrual blood is dispersed along the second emboss 10 to the front side and the rear side in the longitudinal direction, so that liquid such as menstrual blood is effectively absorbed by the absorbent element 6. Because it is done.

  Further, as shown in FIG. 2, the first emboss 15 and the second emboss 10 are surrounded by the first emboss 15 and the second emboss 10 respectively formed on the left and right of the center line CL with respect to the longitudinal center line CL of the absorbent element 6. A third emboss 18 may be further provided in the portion. By providing the third emboss 18, the portion surrounded by the first emboss 15 and the second emboss 10 is more three-dimensionally raised than when the third emboss 18 is not provided. Therefore, the fit feeling of the wearer with respect to the blood drainage port can be further improved.

In addition, it is preferable not to make the space | interval of the emboss point which comprises the said 3rd emboss 18 close. This is because if the density is increased, the absorbent element 6 located in the vicinity of the third emboss 18 is hardened, which leads to deterioration of the wearing comfort of the sanitary napkin 1 felt by the wearer.
In FIG. 2, the third emboss 18 is provided substantially parallel to the longitudinal center line CL of the sanitary napkin 1, but the method of forming the third emboss 18 is not limited thereto. Specifically, when the longitudinal center line CL is used as a reference line, it may be provided obliquely with a predetermined angle, and there may be a plurality of third embosses 18 instead of only one as shown in FIG. A book may be provided.

Next, the intervals between the emboss points constituting the first emboss 15, the second emboss 10, and the third emboss 18 will be described.
1 and 2, the first emboss 15 and the third emboss 18 represent only the embossed lines. What consists only of the said embossed line means the embossing of the state of (b) of FIG. Moreover, in FIG. 1 and FIG. 2, the 2nd emboss 10 represents what consists of an emboss line and an emboss point. What consists of the said emboss line and an emboss point means the emboss of the state of (d) of FIG.

Further, at least one of the first emboss 15 and the third emboss 18 is composed of only an emboss point as shown in FIG. 7A, and the second emboss 10 is also embossed as shown in FIG. 7C. May consist of only points. In this case, among the intervals between the emboss points constituting the first emboss 15 and the intervals between the emboss points constituting the third emboss 18, the interval between the emboss points of at least one emboss is The distance between the emboss points constituting the second emboss 10 is made sparser.
In general, as the distance between the emboss points becomes closer, the absorbent element 6 near the emboss points becomes harder. The sanitary napkin 1 is worn because the absorbent element 6 in the vicinity of at least one of the first emboss 15 and the third emboss 18 does not become hard by setting the distance between the emboss points as described above. Sometimes the wearer feels comfortable. Further, by making the interval of the second emboss 10 closer than that of at least one of the first emboss 15 and the third emboss 18, liquid such as menstrual blood is allowed to flow along the groove of the emboss point of the second emboss 10. Thus, it can flow quickly to the front side and the rear side in the longitudinal direction, and leakage of menstrual blood or the like into shorts can be prevented.

Further, at least one of the first emboss 15 and the third emboss 18 is composed of only an emboss point as shown in FIG. 7A, and the second emboss 10 is embossed as shown in FIG. 7D. It may consist of a combination of dots and embossed lines. In this case, the intervals between the emboss points constituting the second emboss 10 are the intervals between the emboss points constituting the first emboss 15 and the intervals between the emboss points constituting the third emboss 18. Sparser than at least one of the intervals.
The purpose of the second emboss 10 is to promptly flow a liquid such as menstrual blood along the groove of the second emboss 10 to the front side and the rear side in the longitudinal direction. Therefore, when the second emboss 10 is composed only of the emboss points, the distance between the emboss points must be closer than the distance between the emboss points of at least one of the first emboss 15 and the third emboss 18. Don't be. However, when the second emboss 10 is composed of an emboss line and an emboss point, a liquid such as menstrual blood is quickly flowed along the groove of the second emboss 10 to the front side and the rear side in the longitudinal direction. Therefore, the distance between the emboss points of the second emboss 10 can be made sparser than the distance between the emboss points of at least one of the first emboss 15 and the third emboss 18. By making the intervals between the emboss points of the second emboss 10 sparse, it is possible to prevent the absorbing elements 6 near the second emboss 10 from becoming harder than when the intervals between the second embosses 10 are increased. Can do.

Next, the fixing means a20 for fixing the sanitary napkin 1 and the shorts 16 will be described with reference to FIG.
The adhering means a20 is provided on the surface of the liquid-impermeable back sheet 2 that faces the shorts 16. In FIG. 3, the fixing means a <b> 20 is provided in three rows on the left and right in the width direction of the liquid-impermeable back sheet 2. The adhering means a20 is provided substantially in parallel with the second emboss 10. Among the fixing means a20 provided in three rows, the fixing means a20 located on both sides are arranged so as to overlap with a part of the second embossing 10. On the other hand, among the fixing means a20 provided in three rows, the fixing means a20 located at the center are arranged on the front side and the rear side in the longitudinal direction of the first emboss 15 so as not to overlap the first emboss 15. ing.
In other words, the adhering means a20 is arranged so as to surround the blood discharge port corresponding part R1.
By arranging the fixing means a20 in this way, the side facing the shorts 16 of the liquid-impervious back sheet 2 of the blood discharge port corresponding part R1 does not fix the shorts 16, so the blood discharge port corresponding part Compared with the case where the side of R1 facing the shorts 16 of the liquid-impermeable back sheet 2 is fixed to the shorts 16, the absorbent element 6 can be raised with less force.

Next, the fixing means b22 for fixing the absorbent element 6 and the liquid-impermeable back sheet 2 will be described with reference to FIG.
That is, the fixing means b22 is provided between the absorbent element 6 and the liquid-impermeable back sheet 2. As shown in FIG. 3, the application range is not applied in the blood drainage port corresponding part R1 and in the vicinity of the blood drainage port corresponding part R1, but is applied to other parts. As an application method, for example, the sanitary napkin 1 is applied in a spiral pattern from the front side to the rear side in the longitudinal direction. As another example, it may be applied in a sigma, omega, or summit pattern.
By arranging the adhering means b22 in this way, the side facing the absorbent element 6 of the liquid-impervious back sheet 2 of the blood discharge port corresponding part R1 is not adhered to the absorbent element 6, and therefore the drainage port The absorbent element 6 can be raised with a smaller force than when the side facing the absorbent element 6 of the liquid-impervious back sheet 2 of the blood inlet corresponding part R1 is fixed to the absorbent element 6. .

Although the fixing means a20 and the fixing means b20 have been described with reference to FIG. 3, in order to raise the absorption element 6 with a small force, the fixing means a20 and the fixing means b20 are disposed in the vicinity of the blood drainage outlet corresponding portion R1 as described above. It is preferable that neither the means a20 nor the fixing means b20 is provided.
However, one of the adhering means a20 and the adhering means b20 may be provided in the vicinity of the blood outlet corresponding portion R1, and the other one may not be provided in the vicinity of the blood outlet corresponding portion R1.

Next, the state where the absorbing element 6 is raised will be described with reference to FIG.
When the sanitary napkin 1 is worn, the sanitary napkin 1 receives a compressive force from the left and right outer sides in the width direction toward the inner side in the width direction due to foot pressure. The foot pressure is first received by the second emboss 10, and a portion of the absorbent element 6 sandwiched between the pair of second emboss 10 is raised.
Further, the foot pressure that cannot be received by the second emboss 10 is received by the first emboss 15. And the part pinched | interposed into a pair of said 1st embossing 15 among the said absorption elements 6 further protrudes.
Therefore, compared with the case where only the second emboss 10 is provided and the first emboss 15 is not provided, the uplift of the absorbent element 6 of the sanitary napkin 1 becomes more three-dimensional and is sandwiched between the second emboss In addition, it becomes difficult for the absorbent element 6 to be distorted, and the fit to the blood drainage port of the wearer becomes higher.

Further, the fixing means a20 is disposed so as to surround the blood discharge port corresponding part R1, and the shorts 16 and the liquid-impermeable back sheet 2 are not fixed in the vicinity of the blood discharge port corresponding part R1, The shorts 16 and the liquid-impervious back sheet 2 are fixed to portions other than the blood drainage port corresponding portion R1.
Therefore, the absorbent element 6 can be raised with less force than when the side facing the shorts 16 of the liquid-impervious back sheet 2 of the blood drainage port corresponding part R1 is fixed to the shorts 16. .

Further, the fixing means b22 is disposed so as to surround the blood discharge port corresponding part R1, and does not fix the absorbent element 6 and the liquid-impermeable back sheet 2 in the vicinity of the blood discharge port corresponding part R1, The absorbent element 6 and the liquid-impervious back sheet 2 are fixed at portions other than the blood discharge port corresponding portion R1.
Therefore, as compared with the case where the side facing the absorbent element 6 of the liquid-impervious back sheet 2 of the blood discharge port corresponding part R1 is fixed to the absorbent element 6, the absorbent element 6 is raised with less force. Can be made.

Next, the formation position of the first emboss 15 will be described with reference to FIG.
In FIG. 5, the first emboss 15 is provided only on the absorbent element 6 and is not provided on the liquid-permeable surface sheet 3. This is different from FIG. 4 in which the first emboss 15 is provided on the absorbent element 6 and the liquid-permeable surface sheet 3.
As described above, when embossing is provided on the liquid-permeable surface sheet 3 or the absorbent element 6, the embossed portion becomes hard. Therefore, not only the comfort when the sanitary napkin 1 is worn is deteriorated, but also the liquid permeability of the liquid-permeable surface sheet 3 and the liquid absorbability of the absorbent element 6 are lowered.
However, as shown in FIG. 5, if the first emboss 15 is provided only in the absorbent element 6 and not provided in the liquid permeable surface sheet 3, the liquid permeable surface around the first emboss 15. There is an effect that the liquid permeability of the sheet 3 is not impaired.
Moreover, since the said 1st embossing 15 is provided in the said absorption element 6, the liquid absorptivity of the said absorption element 6 falls. However, since the first emboss 15 has the purpose of raising the absorbent element 6 sandwiched between the pair of first embosses 15, it is necessary for the configuration of the present invention.
The second emboss 10 is provided on both the liquid-permeable surface sheet 3 and the absorbent element 6. Thereby, although the liquid permeability of the liquid-permeable surface sheet 3 is lowered, in order to prevent liquid such as menstrual blood from leaking outward in the width direction from the second emboss 10, the second emboss 10 is The liquid permeable top sheet 3 is also provided, and the liquid is guided to the front side and the rear side in the longitudinal direction of the second emboss 10.

Next, the positions where the first emboss 15 and the second emboss 10 are formed will be described with reference to FIG.
It is desirable that the first emboss 15 and the second emboss 10 are arranged in a range where the wearer's foot pressure is greatly received. In the example shown in FIG. 6, it is assumed that the root center portion Z of the wing portion W in FIG. 6 receives the foot pressure of the wearer most. Therefore, when it is assumed that the width direction reference line AA ′ is drawn so as to pass through the winged central portion Z and to go straight to the longitudinal center line CL of the sanitary napkin 1, the width direction reference line AA ′. L1 between the width direction reference line AA ′ and the line BB ′ provided forward in the longitudinal direction is about 20 to 40 mm, and the width direction reference line AA ′ and the width direction reference line It is desirable to provide the first emboss 15 and the second emboss 10 so that the distance L2 between AA ′ and the line CC ′ provided rearward in the longitudinal direction is about 20 to 40 mm.

Further, assuming that the sanitary napkin 1 is divided into two halves with respect to the longitudinal center line CL of the sanitary napkin 1, the first emboss 15 and the second emboss 10 in one of the two divided areas It is desirable that the distance SW of the farthest part among the separated parts is 10 mm or more. When the distance SW is less than 10 mm, the absorbent element 6 interposed between the first emboss 15 and the second emboss 10 is hardened, and the wearing comfort felt by the wearer of the sanitary napkin 1 is deteriorated. Because.
Furthermore, it is desirable that the distance LW farthest in the width direction of the sanitary napkin 1 among the pair of second embosses 10 is 3.5 times or more the distance SW. If the sanitary napkin 1 is divided into two parts with the longitudinal center line CL of the sanitary napkin 1 as a boundary when the ratio is less than 3.5 times, Hardness is generated in the absorbent element 6 interposed between the second embosses 10 or the absorbent element 6 interposed between the pair of first embosses 15 so that the wearer of the sanitary napkin 1 feels. This is because the comfort gets worse.

Next, the shapes of the first emboss 15 and the second emboss 10 will be described with reference to FIGS.
The shapes of the first emboss 15 and the second emboss 10 are the shapes on the front side and the rear side in the longitudinal direction with reference to the width direction reference line AA ′ of the sanitary napkin 1 as shown in FIG. Thus, an example of forming an arc shape can be used.
In addition, as shown in FIGS. 8A and 8C, the shapes of the first emboss 15 and the second emboss 10 are based on the width direction reference line AA ′ of the sanitary napkin 1. An example in which the shape on the front side and the back side in the longitudinal direction is not targeted can also be used. In addition, as shown in FIGS. 8B and 8D, an example in which a part of the first emboss 15 and the second emboss 10 are concave may be used. Although the number of the concave portions of the first emboss 15 and the second emboss 10 in FIGS. 8B and 8D is one, an example in which the number is arbitrarily two or more can also be used.

1: sanitary napkin, 2: liquid impervious back sheet, 3: liquid permeable top sheet, 4: absorbent body, 5: crepe paper, 6: absorbent element, 7: extension part, 10: second emboss, : Rear part embossing, 13: front part embossing, 15: first embossing, 16: shorts, 18: third embossing, 20: fixing means a, 22: fixing means b, CL: longitudinal center line, R1: blood drainage Mouth corresponding part, R2: perineum part, W: wing part, Z: wing part root center part, ZB: rear part fold line, ZF: front part fold line

Claims (5)

In a sanitary napkin provided with an absorbent element between a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of first embosses formed on both sides of the longitudinal center line of the absorbent element, approximately symmetrically with respect to the center line, and formed in a convex shape toward the longitudinal center line side;
A pair of second portions formed on both sides of the longitudinal center line of the absorbent element so as to be substantially symmetrical with respect to the center line as a convex from the longitudinal center line side toward the width direction outer side of the absorbent element. With embossing,
With respect to the center line, the second emboss is arranged outside the first emboss so as to sandwich the blood drainage port corresponding part corresponding to the blood drainage port of the wearer ,
The second emboss extends in the front-rear direction from the first emboss and is formed to have a longer length in the longitudinal direction.
One end and the other end in the longitudinal direction of one second emboss constituting the pair are one end and the other end in the longitudinal direction of the other second emboss constituting the pair. Are spaced apart in the width direction,
The fixing means provided on the liquid-impervious back sheet for fixing the sanitary napkin and the shorts are positioned in the middle in the width direction of the outer fixing means and the outer fixing means positioned outside the first embosses. The sanitary napkin according to claim 1, further comprising a central fixing means, wherein the central fixing means is provided at a longitudinally longitudinal position of the first emboss so as not to overlap the first emboss . The sanitary napkin according to claim 1 , wherein an end point of the first emboss is separated from the second emboss. The sanitary napkin according to claim 1 or 2 , wherein a third emboss is provided between the first emboss and the second emboss. At least one of the first emboss and the third emboss consists of an emboss point ,
The second embossing consists embossing points,
The sanitary napkin according to claim 3 , wherein an interval between at least one embossing point of the first embossing and the third embossing is sparser than an interval between the embossing points of the second embossing. Without providing the first embossed on the liquid-permeable surface sheet, provided only on the absorbent element,
The sanitary napkin according to claim 1, wherein the second emboss is provided on the liquid-permeable surface sheet and the absorbent element.

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