JP2021023764A - Sanitary napkin - Google Patents

Abstract

To improve adhesive property of a sanitary napkin composed by overlapping cloths, to an intimate area, and prevent the sanitary napkin from slipping off from the intimate area.SOLUTION: A sanitary napkin is composed by overlapping two cloths having a liquid absorptive function, and connecting both ends in a lengthwise direction so as to bring a length at a side contacting an intimate area to 94-97% of a length at the other side. Connection means such as a hook and a tape are disposed on both ends in the width direction of each of the cloth contacting the intimate area and the other side cloth followed by connecting them so as to form an annular structure for adhering the cloths to the intimate area, and an annular structure enabling insertion of a crotch of a panty. With this, adhesive property of the sanitary napkin to the intimate area is improved, and slipping and leak in a transverse direction is suppressed.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sanitary napkin using a sheet-like material having a liquid absorbing function, and more particularly to a cloth sanitary napkin.

As sanitary napkins, paper napkins, porous films made of polymer materials such as polyethylene, and non-woven fabrics are often used. Similar to disposable diapers, these sanitary napkins are made by granulating a water-absorbing polymer material typified by sodium polyacrylate in order to improve the absorption function.

Since these are chemical substances derived from petroleum, there are some theories that there is concern about their effects on the human body, and in consideration of the environmental impact, cloth napkins that can be used many times by washing are available. It is being reviewed.

As an example of a cloth sanitary napkin, in Patent Document 1, an outer cloth having an overhang stitch is layered on an inner cloth whose edge is folded so as to include an absorbent layer so that the outer cloth does not protrude. , A cloth sanitary napkin in which an outer cloth and an inner cloth are sewn together at a folded portion of the inner cloth is disclosed.

In such a sanitary napkin made of cloth, in order to secure a certain level of absorption function or more, a napkin having a structure as disclosed in Patent Document 1 is used, and a plurality of thick cloths are laminated. An integrated configuration may be adopted. Normally, sanitary napkins are used so as to cover the circumference of the so-called delicate zone between the groins and are used in close contact with each other. However, when multiple thick cloths are stacked and curved to fit the body, the adhesion is impaired. May occur.

FIG. 3 is a diagram showing an example of a defect when two cloths are overlapped with each other. That is, as shown in FIG. 3A, when two cloths of the same length are overlapped in close contact with each other and both ends in the length direction are sewn together, the cloth is curved along the upper side in the figure, that is, the delicate zone. If this is done, there is a problem that the cloth on the delicate zone side is wrinkled, the entire surface of the cloth does not adhere to the delicate zone, and the possibility of lateral leakage of menstrual blood increases.

JP-A-2006-288681

In view of the above problems, it is an object of the present invention to improve the adhesion of a sanitary napkin having a structure in which cloths are overlapped to a delicate zone and to prevent the sanitary napkin from shifting from the delicate zone. It is a thing.

The present invention has been made as a result of diligently reexamining how to superimpose two cloths in order to solve the above problems.

The present invention is a sanitary napkin formed by superimposing a first cloth and a second cloth having a liquid absorbing function and joining both ends in the length direction, wherein the length of the first cloth is the second. The first cloth is a sanitary napkin having a length of 94% or more and 97% or less of the length of the cloth, and the first cloth is arranged on the side in contact with the delicate zone.

Further, the present invention is provided with first engaging means for engaging both ends with each other at both ends in the width direction near the portion of the first cloth in contact with the delicate zone, and the first engagement is provided. The sanitary napkin is characterized in that it is possible to form a first ring for bringing the first cloth into close contact with the delicate zone by engaging the means.

Further, in the present invention, an expansion portion having an expanded width is formed in the vicinity of a portion arranged in the delicate zone of the second cloth, and both ends are engaged with each other at both ends of the expansion portion. The sanitary napkin comprising two engaging means, wherein the second engaging means can form a second ring for inserting a crotch of shorts. ..

FIG. 4 is a diagram schematically showing a configuration in which two cloths are overlapped in the sanitary napkin of the present invention. As shown in FIG. 4, the first cloth on the side in contact with the delicate zone is Since it is shorter than the other second cloth, when the sanitary napkin according to the present invention is attached to the body along the delicate zone, the first cloth is less likely to wrinkle and menstrual blood Lateral leakage can be suppressed.

Further, since the first cloth can form an annular structure bulging toward the delicate zone side by using the engaging means provided at both ends in the width direction, the adhesion of the cloth to the delicate zone can be improved. Further, as described above, the second cloth can form an annular structure through which the crotch portion of the shorts or panties can be inserted, which is attached so as to include the napkin of the sanitary napkin, so that the second cloth can be formed in the lateral direction of the sanitary napkin. It is possible to suppress the deviation of.

One of the advantages of constructing a sanitary napkin by superimposing two cloths is that it can be used with another absorber sandwiched between the two cloths. Be done. This feature is useful when the amount of menstrual blood is high. Second, for drying after washing, you can clip the two cloths with separate clothespins or insert a clothesline between the two cloths to make it easier for the wind to pass and dry. Can be mentioned as being faster. Further, the same effect can be obtained by inserting a washing rope through the first ring or the second ring.

The figure which shows an example of the sanitary napkin which concerns on this invention. The figure which shows the state which attached the sanitary napkin which concerns on this invention to shorts. The figure which shows an example of the trouble when two cloths are overlapped. The figure which showed typically the structure which overlapped the two cloths in the sanitary napkin of this invention. The graph which shows the monitoring result for evaluating the fit feeling of the sanitary napkin of this invention.

Next, an embodiment of the present invention will be described with reference to specific figures.

1A and 1B are views showing an example of a sanitary napkin according to the present invention, FIG. 1A is a front view, FIG. 1B is a cross section of AA, and FIG. 1C is a side view. In the example shown in FIG. 1, the first cloth 1 and the second cloth 2 are overlapped, and both ends in the length direction are joined by the stitched portions 3a and 3b, in the vicinity of the delicate zone of the first cloth 1. First joining means 4a and 4b are provided at both ends in the width direction of the cloth 2, and expansion portions 2a and 2b are provided at portions arranged in the vicinity of the delicate zone of the second cloth 2. The second engaging means 5a and 5b are provided.

The length L1 between the stitched portions 3a and 3b of the first cloth 1 shown in FIG. 1 is 95% of the length L2 between the stitched portions 3a and 3b of the second cloth 2. It contributes to improving the fit to the delicate zone when worn. The reason why L1 was set to 93% or more and 97% or less of L2 is the result of monitoring the fit of the napkin with this value changed.

That is, specimens of sanitary napkins in which the ratio (%) of L1 to L2 was changed were prepared, and 20 subjects each evaluated the fit. Specifically, the ones that feel the best fit for each specimen are listed. The results are shown in FIG. 5, and it was determined that it is desirable that L1 be 93% or more and 97% or less of L2, and that the more desirable range is 94% or more and 96% or less.

Further, FIG. 2 shows the first joining means 4a and 4b provided on the first cloth 1 and the expansion portions 2a and 2b of the second cloth 2 of the sanitary napkin according to the present invention. It is a figure which shows the state which joined the two joining means 5a, 5b to form the first ring 1a and the second ring 2c, and attached to the shorts 6.

As the joining means, it is possible to use a so-called hook made of a pair of members having a bottomed hole into which the protrusion and the protrusion fit. The hook is sometimes called a snap button, but it can also be used as a joining means such as fitting a normal button into a buttonhole.

As shown in FIG. 2, by wearing the shorts 7 with the crotch 6a of the shorts 6 inserted through the second ring, the lateral displacement of the sanitary napkin can be suppressed. Further, by forming the first ring 1a, the contact portion of the delicate zone of the first cloth 1 swells, and the fit is improved.

As described above, according to the present invention, it is possible to provide a sanitary napkin made of cloth, which can provide a comfortable fit and can suppress lateral displacement during wearing. Since the sanitary napkin of the present invention is made of cloth, it can be selected and used repeatedly, so that the burden on the environment can be reduced and the influence of chemical substances can also be reduced. The present invention is not limited to the above-described embodiment, and does not deviate from the gist of the present invention, including various modifications and modifications that can be conceived by a person having ordinary knowledge in the field of the present invention. It goes without saying that even if there is a design change in the range, it is included in the present invention.

1 ・ ・ ・ 1st cloth 1a ・ ・ ・ 1st ring 2 ・ ・ ・ 2nd cloth 2c ・ ・ ・ 2nd ring 2a, 2b ・ ・ ・ Expansion part 3a, 3b ・ ・ ・ Suture part 4a, 4b ・ ・ ・ First engaging means 5a, 5b ・ ・ ・ Second engaging means 6 ・ ・ ・ Shorts 6a ・ ・ ・ Crotch

Claims (3)

In a sanitary napkin formed by superimposing a first cloth and a second cloth having a liquid absorbing function and joining both ends in the length direction, the length of the first cloth is the length of the second cloth. A sanitary napkin having a length of 93% or more and 97% or less of the above, wherein the first cloth is arranged on the side in contact with the delicate zone. First engaging means for engaging both ends with each other are provided at both ends in the width direction in the vicinity of the portion of the first cloth in contact with the delicate zone, and by engaging the first engaging means, the first engaging means is provided. The sanitary napkin according to claim 1, wherein a first ring for adhering the first cloth to the delicate zone can be formed. An expanded portion is formed in the vicinity of a portion arranged in the delicate zone of the second cloth, and a second engaging means for engaging both ends with each other is provided at both ends of the expanded portion. The first or second aspect of the invention, wherein a second ring for inserting the crotch of the shorts can be formed by engaging with the second engaging means. Sanitary napkin.

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