JP2004097304A - Sanitary tampon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary tampon provided with an absorbent which is easily taken out from the vagina. <P>SOLUTION: Inside an area from the center part to the rear end of the absorbent, a constricting means capable of making the degree of the expansion of the absorbent lower than the degree at other parts is provided. Especially, the constricting means is a thread, a cord or a tape binding the outer peripheral surface of the absorbent. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sanitary tampon inserted into the vagina for the absorption of menses.
[0002]
[Prior art]
The absorbent used in the sanitary tampon is required to have a small diameter so as to be easily inserted into the vagina, but also to have a high absorbency. For this reason, the above-mentioned absorber is manufactured by squeezing a web formed of an absorbent fiber material such as cotton or rayon, or a web obtained by covering the web with a nonwoven fabric surface sheet and suppressing fluffing.
[0003]
The absorber before use is generally a columnar body having an aspect ratio (ratio of thickness to length) of less than 1, but is a squeezed molded body as described above, and therefore expands with the absorption of menstrual blood. I do.
[0004]
In many sanitary tampons, by increasing the amount of absorbent fiber material used for the absorbent to a certain extent or more, the vaginal opening is closed due to the expansion of the absorbent due to the absorption of menstrual blood, and menstrual blood flows out of the body Is prevented. In order to increase the absorption capacity, for example, Patent Literature 1 discloses a sanitary tampon in which a plurality of small recesses that are opened on the surface and extend inside are formed in the absorber.
[0005]
[Patent Document 1]
JP 2001-8964 A
[Problems to be solved by the invention]
However, if the absorbent body expands until the vaginal opening is closed due to the absorption of menstrual blood, it becomes difficult to remove the absorbent body from the vagina later, and in some cases, it may be painful at the time of removal.
[0007]
Then, an object of the present invention is to provide a sanitary tampon provided with an absorber which can be easily taken out of the vagina.
[0008]
[Means for Solving the Problems]
The present inventors have solved the above-mentioned problem by providing specific means in a region from the center to the rear end of the absorber.
[0009]
Hereinafter, the present invention will be described. In addition, in order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated embodiment.
[0010]
In one aspect of the present invention, the degree of expansion of the absorber may be made smaller than that of other parts in a region from the central portion (1a) to the rear end (1b) of the absorber (1). The object is achieved by providing a sanitary tampon (10) characterized by being provided with a possible stenosis means (3).
[0011]
Here, the term “expansion of the absorbent body” as used herein means that the absorbent body swells and grows with the absorption of menstrual blood, and is compressed after the absorbent fiber material (eg, web) is folded. In the case of an absorber manufactured by molding, it also includes that the absorber expands with the absorption of menstrual blood. Due to this expansion, the absorber sometimes expands or expands to a size larger than that before compression molding.
[0012]
Further, the “rear end of the absorber” in the present invention means an end that becomes the rear end when the absorber is inserted into the vagina.
[0013]
By providing the absorber with the above-described stenosis means, even if the absorber expands due to the absorption of menstrual blood, the diameter of the rear end of the absorber, that is, the region that becomes the tip when taken out from the vagina, is kept small. It becomes possible to take out the absorber in the set state.
[0014]
Therefore, even if the absorber expands to such an extent that the vaginal opening is closed by absorption of menstrual blood, the absorber can be easily taken out of the vagina.
[0015]
Such actions and advantages of the present invention will be apparent from embodiments described below.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
The absorbent body of the sanitary tampon according to the present invention has the same aspect ratio (the ratio of the diameter to the length as the conventional one) made of the same material as the conventional absorbent body except that the narrowing means is provided. ) Are formed in a column shape of less than 1.
[0017]
The stenosis means may be any as long as the degree of expansion of the absorber accompanying the absorption of menstrual blood can be made smaller than the degree at other places, but the arrangement position is generally at the center of the absorber. It is preferable to be within the region from the part to the rear end. If the stenosis means is provided at the distal end of the absorber, there is a danger that it will cause a reduction in the absorption capacity of the absorber.
[0018]
In order to prevent the stenosis means from falling off or coming off, it is preferable to dispose the absorber slightly distally, for example, about 0.5 to 1.5 cm from the rear end of the absorber.
[0019]
Specific examples of the stenosis means include (1) a thread, a string, or a tape binding the absorber from the outer peripheral surface of the absorber, and (2) a thread or a string locally suturing the absorber. (3) an annular body attached to the outer peripheral surface or inner peripheral surface of the absorber; (4) a tightening string slidably passed through the absorber.
[0020]
By providing the above-described narrowing means in the absorber, it is possible to suppress the diameter of the rear end portion (the front end portion at the time of removal) of the absorber at least at the time of removal at the same time while sufficiently securing the absorption capacity of the absorber. Will be possible. For example, if the narrowing means (1) to (3) is used, the diameter of the rear end of the absorber can always be kept small, and if the narrowing means (4) is used, the absorber By first pulling the tightening string when taking out the vagina from the vagina, the diameter of the rear end of the absorber can be reduced.
[0021]
Therefore, even if the absorber expands to such an extent that the vaginal opening is closed by absorption of menstrual blood, the absorber can be easily taken out of the vagina.
[0022]
In addition, in order to prevent a feeling of discomfort and pain when the absorber is inserted, the narrowing means does not protrude from the surface of the surrounding absorber, and has substantially the same curved surface as the surface of the surrounding absorber. It is preferable that the outer surface is located on the upper side, or that the outer surface is located radially inward of the absorber so as to be concave with respect to the surface of the surrounding absorber.
[0023]
When the absorber is provided with the narrowing means (1), (2) or (4), the thread or string used for the narrowing means can be used as a take-out string. Of course, a take-out string may be provided separately from these threads or strings.
[0024]
"Removal cord" means a string that extends from the rear end surface of the absorber while being fixed to the absorbent body in order to take out the inserted absorbent body from the body, and is already used in many sanitary tampons. It's being used.
[0025]
The sanitary tampon according to the present invention can be applied to any of an applicator type, a finger type, and a stick type.
[0026]
【Example】
(Example 1)
As shown in FIG. 1, a sanitary tampon 10 of the present embodiment has an absorber 1 having a shape in which one end of a cylinder is rounded, and an area from a central portion 1 a to a rear end 1 b of the absorber 1, specifically, Has a narrowing means 3 provided slightly above (for example, 1 cm above) the rear end 1b, and a take-out cord 5 extending from the rear end face of the absorber 1 while being fixed in the absorber 1. .
[0027]
The stenosis means 3 is composed of a yarn binding the absorber 1 from the outer peripheral surface of the absorber 1 and a yarn (not shown) fixing the yarn to the absorber 1. The degree of expansion of the absorber 1 due to the absorption of blood is made smaller than the degree at other locations.
[0028]
FIGS. 2A and 2B show an example of a procedure for forming the narrowing means 3. First, as shown in FIG. 2A, one yarn 3 is doubled and wound once or plural times around the outer peripheral surface of the absorber 1. At this time, both ends 3a and 3b of the doubled yarn 3 are extended outside the absorber 1. One end 3a of the doubled yarn 3 is both ends of the yarn 3 before being doubled, and the end 3b is an end newly generated by doubled the yarn 3.
[0029]
Next, as shown in FIG. 2 (B), the end 3a of the doubled yarn 3 is inserted into a loop formed naturally near the end 3b, and then sufficiently pulled out. The yarn 3 is fixed to the absorber by the so-called “lark knot”. In order to prevent the yarn 3 in this state from being loosened, the yarn 3 is fixed to the absorber 1 with another yarn not shown, whereby the narrowing means 3 can be formed.
[0030]
In the sanitary tampon 10 having the above-described configuration, the diameter of the rear end portion (the front end portion at the time of removal) of the absorber 1 is always kept small by the narrowing means 3.
[0031]
Therefore, even if the absorber 1 expands due to the absorption of menstrual blood, the absorber 1 can be easily removed from the vagina.
[0032]
(Example 2)
As shown in FIG. 3, the sanitary tampon 20 of the present embodiment is different from the sanitary tampon 10 of the first embodiment in that a stenosis means 13 is provided instead of the stenosis means 3 shown in FIG.
[0033]
Since the configuration except for this point is the same as the configuration of the sanitary tampon 10, the same components as those shown in FIG. 1 among the components shown in FIG. The same reference numerals as those in the drawings denote the same parts, and a description thereof will be omitted.
[0034]
The stenosis means 13 shown in FIG. 3 is an annular body formed of a nonwoven fabric or a synthetic resin film, and has an inner diameter smaller than the outer diameter of the absorber 1 before the stenosis means 13 is mounted.
[0035]
The above-mentioned annular body (narrowing means 13) is mounted on the outer peripheral surface of the absorber 1 by compressing the absorber 1 and fitting it into the annular body.
[0036]
Like the sanitary tampon 10 of the first embodiment, the sanitary tampon 20 having such a configuration can easily take out the absorber 1 from the vagina even if the absorber 1 expands due to the absorption of menstrual blood. It is possible.
[0037]
(Example 3)
As shown in FIG. 4, the sanitary tampon 30 of the present embodiment has an absorber 21 having a shape in which one end of a cylinder is rounded, and a specific region in a region from a central portion 21 a to a rear end 21 b of the absorber 21. Has a narrowing means 23 provided slightly above (for example, 1 cm above) the rear end 21b, and an extraction cord 25 extending from the rear end face of the absorber 1 while being fixed in the absorber 1. .
[0038]
The absorber 21 is obtained by folding the coated web in two along its longitudinal axis and then pressing the coated web into a shape in which one end of a cylinder is rounded.
[0039]
Here, the term “coated web” as used herein means a web made of an absorbent fiber material covered with a nonwoven fabric surface sheet.
[0040]
The shape of the covering web 21 used as a material of the absorber 21 in plan view is, for example, a rectangular shape or a rectangular shape in which one end in the longitudinal direction is cut in a V shape, and a corner at the other end of the rectangular shape (two places in total). ) Can be cut out to form a shape in which the end protrudes in a U-shape.
[0041]
Before being pressed, the coated web is pre-sewn with thread along its longitudinal axis. After the compression molding, a part of the yarn extends from the rear end surface of the absorbent body 1 and becomes a takeout string 25.
[0042]
As shown in FIGS. 5 (A) and 5 (B), the stenosis means 23 is formed of a thread sewn at a predetermined position (a total of two positions) of the seam J of the folded web 21W. Have been. Both ends of the yarn are, for example, balled inside the two-folded covering web 21W. In FIG. 5A and FIG. 5B, the boring points are indicated by reference numeral 23a.
[0043]
As with the sanitary tampon 10 of the first embodiment, the sanitary tampon 30 having such a configuration can easily remove the absorber 21 from the vagina even if the absorber 21 expands due to the absorption of menstrual blood. It is possible.
[0044]
(Example 4)
As shown in FIG. 6A, the sanitary tampon 40 of the present embodiment includes an absorber 31 having a shape in which one end of a cylinder is rounded, and a region from a central portion 31 a to a rear end 31 b of the absorber 31. Specifically, a narrowing means 33 provided slightly above (for example, 1 cm above) the rear end 31b and a takeout cord 35 fixed in the absorber 31 and extending from the rear end face of the absorber 31 are provided. Have.
[0045]
The absorber 31 is formed by pressing a coated web having a substantially square shape in plan view into a shape in which one end of a cylinder is rounded.
[0046]
At the center of the coated web before compression molding, after passing through the back surface (the surface that becomes the rear end surface when molded into an absorbent body) to the front surface, and then from the other portion of the center to the back surface, The thread is passed in advance. After the compression molding, a part of the yarn extends from the rear end surface of the absorbent body 31 and becomes a takeout string 35.
[0047]
As shown in FIG. 6 (B), the narrowing means 33 is zigzag in the center of the above-mentioned coating web 31W in a plan view using, for example, an elastic yarn 33a in a stretched state and having an outer diameter of about 3 cm. It is formed by sewing. In FIG. 6B, the area where the zigzag stitch is applied is smudged.
[0048]
Since the zigzag stitching is performed using the stretched elastic yarn 33a, after the zigzag stitching is performed, the elastic yarn 33a contracts (restores) so that the above-described central portion protrudes outward. The web 31W is locally sewn.
[0049]
As with the sanitary tampon 10 of the first embodiment, the sanitary tampon 40 having such a configuration can easily take out the absorber 31 from the vagina even if the absorber 31 expands due to the absorption of menstrual blood. It is possible.
[0050]
(Example 5)
As shown in FIG. 7 (A), the sanitary tampon 50 of the present embodiment has an absorber 41 having a shape in which one end of a cylinder is rounded, and an area from a central portion 41a of the absorber 41 to a rear end 41b. Specifically, a narrowing means 43 provided slightly above (for example, 1 cm above) the rear end 41b, and a takeout cord 45 fixed in the absorber 41 and extending from the rear end surface of the absorber 41. Have.
[0051]
The absorbent body 41 is formed by pressing a coated web having a substantially square shape in plan view into a shape in which one end of a cylinder is rounded.
[0052]
At the center of the coated web before compression molding, after passing through the back surface (the surface that becomes the rear end surface when molded into an absorbent body) to the front surface, and then from the other portion of the center to the back surface, The thread is passed in advance. After the compression molding, a part of the yarn extends from the rear end surface of the absorbent body 41 and becomes a takeout string 45.
[0053]
As shown in FIG. 7 (B), the narrowing means 43 includes a tightening string in a circularly loosely tied stitch having an outer diameter of about 3 cm at a central portion in plan view of the coating web 41W. Of the string 43a, and extend both ends of the string 43a from the covering web 41W. As shown in FIG. 7 (C), when the joint sewing is performed for the loosening, a gap 43c is formed between the butt stitching thread 43b exposed on the surface of the covering web 41W and the upper surface of the covering web 41W. The string 43a can be passed through this gap.
[0054]
The extension length of both ends of the string 43a from the covering web 41W is, for example, a length that can extend out of the body from the absorbing body 41W when the absorbent body 41 obtained by squeezing the covering web 41W is inserted into a vagina. It is adjusted to.
[0055]
Note that, in FIG. 7B, smudging is applied to the area where the butt stitching is performed.
[0056]
In the sanitary tampon 50 having such a configuration, the extension length of both ends of the string 43a from the absorber 41 is adjusted as described above, and the string 43a is slidably passed through the absorber 41. The string 43a can be used as a tightening string.
By first pulling both ends of the tightening string (string 43a) when removing the absorber 41 from the vagina, it is possible to reduce the diameter of the rear end (the tip at the time of removal) of the absorber 41.
[0057]
Therefore, as with the sanitary tampon 10 of the first embodiment, even if the absorbent 41 expands due to the absorption of menstrual blood, the sanitary tampon 50 can easily remove the absorbent 41 from the vagina.
[0058]
Although the present invention has been described in connection with the most practical and preferred embodiments at this time, the invention is not limited to the embodiments disclosed herein. The sanitary tampon with such changes can be appropriately modified without departing from the gist or idea of the invention, which can be read from the claims and the entire specification. It is understood that the sanitary tampon with such changes is also included in the technical scope of the present invention. It must be.
[0059]
For example, in the first embodiment, the stenosis means 3 is formed using a thread. However, the stenosis means can also be formed by binding the absorber 10 using a string or a tape.
[0060]
When the stenosis means is formed using a string, the string may be thread-fastened to the absorber as necessary. When forming the stenosis means using a tape, the tape is of a type that is fixed on the outer peripheral surface of the absorber by a pre-applied adhesive, or is thermally bonded to the outer peripheral surface of the absorber. Although it is preferable that the tape is fixed on the outer peripheral surface of the absorbent body by fastening the tape on the outer peripheral surface of the absorbent body, it is possible to bind the absorbent body with the tape.
[0061]
When the constriction means 13 is formed using an annular body as in the sanitary tampon 20 of the second embodiment, the annular body can be disposed inside the absorber. The annular body may be formed of an elastic body such as rubber, for example, in addition to being formed of a nonwoven fabric or a synthetic resin film.
[0062]
When mounting the above-mentioned annular body on the outer surface of the absorber, the annular body can be fixed to the absorber using an adhesive or the like, if necessary. When the annular body is disposed inside the absorber, for example, the annular body is fixed to a predetermined portion of a web or a covering web to be squeezed into the absorber by an adhesive or by thermal bonding.
[0063]
The narrowing means 23 used in the third embodiment is also applicable to a case where a web or a coated web is folded three or more times and then pressed to obtain an absorber.
[0064]
The stenosis means 33 used in the fourth embodiment can be configured by using an inelastic yarn instead of the elastic yarn 33a. In the case of using either an elastic thread or a non-elastic thread, linear sewing or the like can be applied in addition to zigzag sewing. From the viewpoint that it is easy to sew in a wide width, zigzag stitching is preferable as the sewing method. When an inelastic yarn is used, by extending both ends of the inelastic yarn to the outside of the web or the coated web, the inelastic yarn can be used as a takeout cord.
[0065]
When a tightening string (string 43a) is used as the narrowing means 43 as in the sanitary tampon 50 of the fifth embodiment, the tightening string is tightened such that the central portion of the web or the coated web in a plan view projects outward. It can also be obtained by, for example, waving a string for a string in an annular shape and extending both ends of the string from the web or the covering web.
[0066]
In the case where the absorbent body is obtained by squeezing the folded web or the coated web, for example, a string for a tightening string is wave-sewn across a predetermined portion of the web or the coated web before being folded, and By extending both ends to the outside of the web or the covering web, the string can be used as a tightening string. Instead of waving the string for the tightening string as described above, a butt stitch is applied in advance to the area where the waving sewing is to be performed, and the tightening string is passed through the butt stitch in the same manner as in the fifth embodiment. (See FIG. 7 (C)) also allows the string to be used as a tightening string.
[0067]
It will be apparent to those skilled in the art that various changes, improvements, combinations, and the like can be made.
[0068]
【The invention's effect】
As described above, according to the present invention, there is provided a sanitary tampon provided with an absorber that can be easily removed from the vagina. Pain is less likely to occur when removing the absorber from the vagina.
[Brief description of the drawings]
FIG. 1 is a side view schematically showing an embodiment of a sanitary tampon according to the present invention.
FIG. 2 is a schematic view showing an example of a procedure for forming a narrowing means constituting the sanitary tampon shown in FIG.
FIG. 3 is a side view schematically showing another embodiment of the sanitary tampon of the present invention.
FIG. 4 is a side view schematically showing still another embodiment of the sanitary tampon of the present invention.
5 is a schematic view showing an example of a method of forming a narrowing means constituting the sanitary tampon shown in FIG.
FIG. 6 (A) is a side view schematically showing still another embodiment of the sanitary tampon of the present invention, and FIG. 6 (B) is a sanitary tampon shown in FIG. 6 (A). It is the schematic which shows an example of the formation method of the narrowing means which comprises a tampon.
FIG. 7 (A) is a side view schematically showing still another embodiment of the sanitary tampon of the present invention, and FIG. 7 (B) is a sanitary tampon shown in FIG. 7 (A). FIG. 7C is a schematic view showing an example of a method of forming a stenosis means constituting a tampon, and FIG. 7C shows a configuration of a stenosis means constituting a sanitary tampon shown in FIG. It is sectional drawing which shows schematically.
[Explanation of symbols]
1, 21, 31, 41 Absorber 1a, 21a, 31a, 41a Absorber central part 1b, 21b, 31b, 41b Absorber rear end 3, 13, 23, 33, 43 Narrowing means 10, 20, 30 , 40, 50 sanitary tampon

Claims (6)

Sanitary means, wherein a narrowing means capable of making the degree of expansion of the absorber smaller than that of other parts is provided in a region from the center to the rear end of the absorber. tampon. The sanitary tampon according to claim 1, wherein the narrowing means is a thread, a string, or a tape that binds the absorber from the outer peripheral surface of the absorber. The sanitary tampon according to claim 1, wherein the narrowing means is a thread or a string locally suturing the absorber. The sanitary tampon according to claim 1, wherein the narrowing means is an annular body attached to an outer peripheral surface or an inner peripheral surface of the absorber. The sanitary tampon according to claim 1, wherein the narrowing means is a tightening string slidably passed through the absorber. The said narrowing means in the place where the said narrowing means is provided is located in the radial direction inner side of this absorber compared with the surrounding absorber surface. 6. The sanitary tampon according to any one of 5.

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