JP2003000643A - Hygenic shorts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hygienic shorts which can easily be put on and off but whose turned back wing portion cannot be seen from the outside. SOLUTION: A lower cloth 3 for fixing an absorptive article 8 is arranged in an inner side of the inseam of the shorts body 2. In the lower cloth 3, the front and back edges are fixed on the shorts body 2, and the fixed part is made separable from the shorts body 2. A sheet-shaped material 9 that enhances the rigidity of the lower cloth 3 is fixed on a part or an entire area of a unilateral surface of the lower cloth 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary shorts having excellent operability of wearing an absorbent article having a wing portion.

[0002]

2. Description of the Related Art Absorbent articles provided with a pair of wing portions for fixing clothes are known in order to securely fix absorbent articles such as sanitary napkins and panty liners to shorts. Has been. When the absorbent article having such a wing portion is attached to the shorts, the folded wing portion is exposed on the outer surface of the shorts, and the appearance is not good. In addition, the folded wing part,
The wing may flip up due to rubbing against clothing such as stockings worn on the wearer's inner thighs or shorts.

In order to eliminate such an inconvenience, the registered utility model No. 3002607 and Japanese Patent Laid-Open No. 2001-5560.
In JP-A-2, the shorts crotch part is composed of a double cloth composed of an inner cloth piece and an outer cloth piece, and a wing portion is fixed to a surface of the inner cloth piece facing the outer cloth piece, so that the wing is folded back. Shorts have been proposed that keep the invisible from outside. However, in the shorts described in these publications, since the inner cloth piece to which the wing portion is fastened does not have sufficient rigidity (flexibility), it is not easy to fold and fasten the wing portion, and the shorts are applied to the wing portion. It often happens that the adhesive for fastening is clinging to the hand and sticking to a position other than the proper position of the shorts. Moreover, due to the lack of elasticity of the inner cloth piece, the absorbent article fixed to the inner cloth piece is displaced due to the action of the wearer, and liquid leakage is likely to occur.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide sanitary shorts in which folded back wings cannot be seen from the outside and the operation of fastening the wings is easy. It is another object of the present invention to provide a sanitary shorts in which positional displacement and liquid leakage of the absorbent article due to the motion of the wearer are prevented.

[0005]

According to the present invention, there is provided a sanitary shorts in which an inner crotch cloth for fixing an absorbent article is arranged inside a crotch portion of a shorts body, wherein the inner crotch cloth is provided at the front and rear ends thereof with the shorts. A sheet-like rigidity improving member that is fixed to the main body and is capable of separating the entire region between the front and rear ends from the shorts main body, and that enhances the rigidity of the inner crotch cloth is provided on one surface of the inner crotch cloth. The object has been achieved by providing sanitary shorts that are partially or entirely fixed.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described based on its preferred embodiments with reference to the drawings. In Figure 1,
A perspective view of an embodiment of the sanitary shorts of the present invention is shown, and FIG. 2 is a perspective view of a main part of the sanitary shorts with a sanitary napkin attached.

In the sanitary shorts 1 shown in FIG. 1, absorbent articles having a pair of laterally extending wing portions on both left and right sides are fixed and worn, and a shorts body 2
And an inner crotch cloth 3 arranged inside the crotch portion of the shorts body 2. The inner crotch cloth 3 is used to fix an absorbent article such as a sanitary napkin. The shorts body 2 has a front cloth 4 forming a front body, a rear cloth 5 forming a back body, and an outer crotch cloth 6 forming a crotch portion located between the front body and the back body. ing. Each cloth 4,
5 and 6 are sewn together to form the shorts body 2. It is preferable that each of the cloths 4, 5 and 6 has a good feel to the touch and has high breathability and hygroscopicity. From this point, it is preferable that the cloths 4 and 5 be made of a material mainly composed of cotton. In addition, each cloth 4,
It is preferable that 5 and 6 have elasticity in the vertical and horizontal directions from the viewpoint of enhancing the fit with the wearer's body, and from this point, it is preferable to contain a small amount of elastomer fibers such as polyurethane fibers.

The front and rear ends of the inner crotch cloth 3 are sewn and fixed to the shorts body 2. The sewing position is the same as the position where the outer crotch cloth 6 is sewn to the front cloth 4 and the rear cloth 5. Between the front and rear ends of the sewn inner crotch cloth 3, the entire area can be separated from the shorts body 2 as shown in FIG. That is, the outer crotch cloth 6 and the inner crotch cloth 3 can be separated from each other in the entire area between the front and rear ends.

Linear stretchable elastic members 11 such as narrow flat rubber are provided on the left and right edges of the inner crotch cloth 3 and the outer crotch cloth 6, respectively.
Is sewn in the stretched state.

The left and right edges of the inner crotch cloth 3 do not extend laterally beyond the left and right edges of the crotch portion of the shorts body 2, that is, the left and right edges of the outer crotch cloth 6. As a result, as shown in FIG. 2, when the absorbent article 8 such as a sanitary napkin having the wing portions 7 and 7 is fixed to the inner crotch cloth 3, the folded-back portion 7a of the wing portions 7 and 7 becomes the outer crotch cloth 6 Since it is located inside the left and right side edges, the wing portion 7 becomes even more invisible from the outside. In addition, the folded back wing portions 7 are less likely to rub against the wearer's inner thighs or clothing such as stockings, so that the wing portions 7 are effectively prevented from turning up.

FIG. 3 is a plan view of a main part of the absorbent article 8 having the wing portion 7 fixed to the inner crotch cloth 3 of the shorts 1 as viewed from the inside of the shorts 1. Further, FIG. 4 shows a cross section taken along line IV-IV of FIG. 3 with the absorbent article 8 omitted. In FIG. 3, the upper side is the front body side of the shorts 1 and the lower side is the rear body side.

As shown in FIGS. 3 and 4, the inner crotch cloth 3
A vertically long rectangular sheet material is fixed to a part of the outer crotch cloth facing surface. The sheet material is composed of a sheet-shaped rigidity improving member 9 that can increase the rigidity of the inner crotch cloth 3. The rigidity improving member 9 is arranged so that its vertical center line coincides with the vertical center line of the crotch part of the shorts. Further, the rigidity improving member 9 is arranged in a region where the wing portion 7 of the absorbent article 8 is fastened (hereinafter referred to as a wing portion corresponding region) in the longitudinal direction of the crotch part of the shorts. By fixing the rigidity improving member 9 to the inner crotch cloth 3, the rigidity (stiffness) of the inner crotch cloth 3 is increased, and the fastening adhesive 10 applied to the wing portion 7 of the absorbent article 8 is held in the hand. It is effectively prevented from clinging or sticking to a position other than the proper position of the shorts, so that the wing portion 7 can be folded back and easily fastened to the inner crotch cloth 3. Further, since rigidity is imparted to the inner crotch cloth 3 to which the absorbent article 8 is fixed, even if the wearer makes a vigorous movement while wearing the shorts 1 to which the absorbent article 8 is fixed, Twisting is less likely to occur, and as a result, liquid leakage is less likely to occur.

The width of the rigidity improving member 9 fixed to the area corresponding to the wing portion is narrower than the width of the inner crotch cloth 3. The fastening adhesive 10 applied to the wing portion 7 is located outside the side edge of the rigidity improving member 9 and inside the inseam when the wing portion 7 is attached to the inner crotch cloth 3. It is located inward of the side edge of the cloth 3. That is, the fastening adhesive 10 is applied to the region of the inner crotch cloth 3 where the rigidity improving member 9 is not fixed, that is, the region where the rigidity is not improved. Therefore, it may be considered that it is difficult to improve the operability of folding back the wing portion 7 and fixing the wing portion 7 to the inner crotch cloth 3 just by fixing the narrow width rigidity improving member 9 to the present invention. As a result of examination by the workers, the rigidity improving member 9
It was found that the fixing position in the longitudinal direction has a greater effect on the operability of fastening the wing portion than the width thereof. As a result of further study, it was found that if the rigidity improving member 9 is fixed to at least the wing-corresponding region in the longitudinal direction of the crotch part of the shorts, the operability of fastening the wing is sufficiently improved. Of course, as in the embodiment shown in FIGS. 5 and 6, the rigidity improving member 9 is fixed to the wing-corresponding region in the longitudinal direction of the shorts crotch and the rigidity improving member 9 is fixed in the width direction of the shorts crotch. If the width is made substantially the same as that of the inner crotch cloth 3, the operability of fastening the wing portion is further improved. However, in the case of the embodiment shown in FIG. 5 and FIG. 6, the usage amount of the rigidity improving member 9 increases, and the rigidity improving member 9 easily comes into contact with the inner side of the thigh of the wearer, so that the wearing feeling tends to decrease. Therefore, the width of the rigidity improving member 9 may be determined in consideration of the manufacturing cost, the feeling of wearing, and the operability of fastening the wing portion.

As a result of a detailed study by the present inventors, if the width of the rigidity improving member 9 is at least 20% of the width of the inner crotch cloth 3 at the fixing position of the rigidity improving member 9, the operation for fastening the wing portion is performed. It is sufficient for improving the operability, and if it is 30 to 80%, the operability and the feeling of wearing become good. Further, the width of the rigidity improving member 9 itself is preferably 20 to 80 mm, and particularly preferably 25 to 60 mm.

The fixing position of the rigidity improving member 9 with respect to the longitudinal direction of the crotch part of the shorts affects the fit and fit of the absorbent article, and the front side and / or the rear side of the wing-corresponding region of the inner crotch cloth 3 is affected. It is preferable that the rigidity improving member 9 is not fixed to the position. As a result, rigidity can be imparted to the inner crotch cloth 3 without impeding the elasticity of the inner crotch cloth 3 itself. From this point, the length of the rigidity improving member 9 is 30 to 90 times that of the inner crotch cloth 3.
%, Particularly preferably 40 to 60%. For the same reason, the distance from the front end position of the inner crotch cloth 3 to the front end position of the rigidity improving member 9 is 0 to 60 times the length of the inner crotch cloth 3.
%, Particularly preferably 15 to 50%. The length of the rigidity improving member 9 itself is 40 to 100 mm, particularly 50 to 8 mm.
It is preferably 5 mm. Further, the length of the rigidity improving member 9 itself may be the same as or longer than the length of the fastening adhesive 10 applied to the wing portion 7 of the absorbent article 8. It is preferable from the viewpoint of preventing.

The rigidity improving member 9 is the inner crotch cloth 3 as described above.
Since it is fixed to the outer crotch cloth facing surface, the rigidity feeling that the rigidity improving member 9 has when wearing the shorts 1 is not easily perceived by the wearer, and the wearing feeling is improved. Stiffness improving member 9
Examples of means for fixing the to the inner crotch cloth 3 include suturing, joining with an adhesive, and engagement using engaging means such as hook and loop fasteners.

From the viewpoint of further improving the operability of fastening the wing portion, the rigidity improving member 9 has a bending rigidity value of 1 to 50.
It is preferably cN / cm, particularly preferably 5 to 20 cN / cm. In this case, the bending rigidity value of the rigidity improving member 9 is most preferably within the range in both the longitudinal direction and the width direction of the shorts crotch, but at least when the longitudinal direction is the bending axis. When the bending rigidity value is within the above range, the operability of fastening the wing portion is sufficiently improved.

The bending rigidity value of the rigidity improving member 9 is measured by the following method. Using the equipment and tensile compression tester (Tensilon RTM25, manufactured by Toyo Baldwin) shown in FIG.
Put the tensile compression tester in compression test mode. The device shown in FIG. 7 has a pair of plates 2 arranged at 27 mm intervals.
The receiving member 22 has a U-shaped cross section and includes a pressing member 23 having a tip portion inserted between the plates 21 and 21 of the receiving member 22. Each of the plate 21 and the pressing plate 23 of the receiving member 22 is made of an acrylic resin having a thickness of 3 mm, and has a tip portion formed in an arcuate cross section having R15 mm. Plate 21 of receiving member 22
Have a height of 50 mm and a depth of 70 mm. The pushing plate 23 has a height of 60 mm and a depth of 50 mm.
mm. Remove the rigidity improving member 9 from the shorts,
Shorts crotch length 40mm, width 30m
Cut to m. The sample of the rigidity improving member 9 is placed on the plates 21 and 21 such that the depth direction of the plate 21 and the pressing plate 23 of the receiving member 22 and the longitudinal direction of the rigidity improving member 9 intersect at about 90 degrees. After fixing the push-in plate 23 to the tensile compression tester, the push-in plate 23 is lowered to push the sample of the rigidity improving member 9 into the central portion between the plates 21 and 21 at a speed of 50 mm / min. As shown in the right diagram of FIG. 7, a value obtained by dividing the stress of the sample at the time when the tip of the pressing plate 23 is pushed by 10 mm from the tip of the plates 21 and 21 of the receiving member 22 by the width of 30 mm is the rigidity improving member 9 The bending rigidity value in the width direction of. The bending rigidity value in the longitudinal direction is measured by the same method using the rigidity improving member 9 cut into 30 mm in the longitudinal direction of the crotch part of the shorts and 40 mm in the width direction. If the rigidity improving member 9 is too small to obtain a sample of the above-mentioned size, the length should be 40 m.
m, the width is cut to a size close to 30 mm, and the value obtained by dividing the measured stress by the cut width is taken as the bending rigidity value.

As a material of the rigidity improving member 9 having a bending rigidity value within the above range, for example, an adhesive core used as an interlining of a sleeve or a collar in clothes can be preferably used. Such an adhesive core is usually used in the technical field of clothing and does not require any particular explanation in this specification. Examples of other materials include foam materials made of polyurethane and the like, various non-woven fabrics containing heat-fusible fibers, and composite materials made of foam material / non-woven fabric / woven cloth.

Next, another embodiment of the present invention will be described with reference to FIGS.
Will be described with reference to. With regard to these embodiments, only the points different from the above-described embodiment will be described, and for points that are not particularly described, the detailed description of the above-described embodiments will be applied as appropriate. 8 to 13, the same members as those in FIGS. 1 to 6 are designated by the same reference numerals.

In the shorts of the embodiment shown in FIGS. 8 and 9, a waterproof rigidity improving member 9 is fixed to the entire area of the inner crotch cloth 3 facing the outer crotch cloth. As a result, the operability of fastening the wing portion is improved, liquid leakage from the absorbent article is prevented, and the clothes worn on the shorts are prevented from becoming dirty. As the rigidity improving member 9 having waterproofness, a material obtained by treating the material of the rigidity improving member 9 described above with a silicon-based or fluorine-based water repellent,
Examples thereof include a composite of a water repellent sheet made of a material such as polyfluoroethylene, porous polyurethane, nonporous polyurethane, and nonporous polyethylene.

In the shorts of the embodiment shown in FIGS. 10 and 11, the rigidity improving member 9 having a width narrower than that of the inner crotch cloth 3 is fixed to the wing portion corresponding region on the surface of the inner crotch cloth 3 facing the outer crotch cloth. In addition, a waterproof sheet 10 which is a separate material from the rigidity improving member 9 is fixed between the inner crotch cloth 3 and the rigidity improving member 9. The waterproof sheet 10 covers the entire area of the inner crotch cloth 3 that faces the outer crotch cloth. 12
Also in the shorts of the embodiment shown in FIG. 13, the rigidity improving member 9 and the waterproof sheet 10 having the same shape as those of these are fixed to the outer crotch cloth facing surface of the inner crotch cloth 3. However,
The order of arrangement of the rigidity improving member 9 and the waterproof sheet 10 is shown in FIG.
0 and the reverse of the embodiment shown in FIG. That is,
The waterproof sheet 1 is provided on the entire area of the inner crotch cloth 3 facing the outer crotch cloth.
0 is fixed, and the rigidity improving member 9 is fixed between the inner crotch cloth 3 and the waterproof sheet 10. Also in these embodiments, while improving the operability of fastening the wing portion, liquid leakage from the absorbent article is prevented, and the clothes worn on the shorts are prevented from becoming dirty.

Examples of the waterproof sheet 10 include sheet materials made of materials such as polyfluoroethylene, porous polyurethane, nonporous polyurethane, and nonporous polyethylene. The waterproof sheet 10 is fixed to the inner crotch cloth 3 by a predetermined fixing means such as stitching, joining, or engaging.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the rigidity improving member is fixed to the outer crotch cloth facing surface of the inner crotch cloth 3, but instead of or together with this, the rigidity improving member is fixed to the absorbent article facing surface of the inner crotch cloth 3. Good.

As the absorbent article fixed to the shorts of the present invention, any article having a wing portion can be preferably used, and a sanitary napkin is typical as the absorbent article, but other absorbent articles. It may be an article, such as a panty liner or an incontinence pad.

[0026]

According to the sanitary shorts of the present invention, the folded wing becomes invisible from the outside, and the operation of fastening the wing portion becomes easy. Further, according to the sanitary shorts of the present invention, the fixed absorbent article is less likely to be twisted, and liquid leakage is prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a sanitary shorts of the present invention.

FIG. 2 is a perspective view showing a main part of the sanitary shorts with a sanitary napkin attached.

FIG. 3 is a plan view of a main part of the sanitary shorts as seen from the inside of the sanitary shorts, in which the absorbent article having the wing portion is fixed to the inner crotch cloth.

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3 with the absorbent article omitted.

FIG. 5 is a plan view of a main part (corresponding to FIG. 3) of the sanitary shorts to which another rigidity improving member is fixed, as seen from the inside.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a diagram showing a method of measuring a bending rigidity value.

FIG. 8 is a plan view of a main part (corresponding to FIG. 3) of the sanitary shorts to which another rigidity improving member is fixed, as viewed from the inside.

9 is a sectional view taken along line VIII-VIII of FIG.

FIG. 10 is a plan view (equivalent to FIG. 3) of a main part of the sanitary shorts to which another rigidity improving member and a waterproof sheet are fixed, as viewed from the inside.

11 is a sectional view taken along line XX of FIG.

FIG. 12 is a main part plan view (corresponding to FIG. 3) of the sanitary shorts to which another rigidity improving member and a waterproof sheet are fixed, as viewed from the inside.

13 is a sectional view taken along line XII-XII in FIG.

[Explanation of symbols]

1 sanitary shorts 2 shorts body 3 Inner crotch cloth 4 front cloth 5 Rear cloth 6 outer crotch cloth 7 wings 8 absorbent articles 9 Stiffness improving member 10 tarpaulin

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mika Narawa             1-14-10 Nihonbashi Kayabacho, Chuo-ku, Tokyo               Kao Corporation F-term (reference) 3B028 EA02 EB18 KA02                 4C098 AA09 CC02 CC11 CC15 CC28                       CC37 CE03 CE05 CE13 CE17                       DD01 DD02 DD03 DD06 DD08                       DD10 DD12 DD13 DD22 DD23                       DD25

Claims (8)

[Claims] 1. A sanitary shorts in which an inner crotch cloth for fixing an absorbent article is arranged inside a crotch portion of a shorts body, wherein the inner crotch cloth is fixed to the shorts body at front and rear ends thereof, and The entire region between the front and rear ends is separable from the shorts body, and a sheet-shaped rigidity improving member capable of increasing the rigidity of the inner crotch cloth is fixed to a part or the entire area of one surface of the inner crotch cloth. Sanitary shorts. 2. The absorbent article has a pair of laterally extending wing portions on both left and right sides thereof, and the rigidity improving member is fixed to a wing portion corresponding region of the inner crotch cloth. The sanitary shorts according to item 1. 3. The absorbent article according to claim 2, wherein the rigidity improving member is not fixed to a region of the inner crotch cloth before and after the region corresponding to the wing portion. 4. The sanitary shorts according to claim 2, wherein the rigidity improving member having a width narrower than that of the inner crotch cloth is fixed to the wing portion corresponding region. 5. The rigidity improving member is fixed to a part of the inner crotch cloth, and a waterproof sheet different from the rigidity improving member is fixed to the entire area of the crotch part.
The absorbent article according to any one of to 4. 6. The absorbent article according to claim 1, wherein the waterproof and rigidity-improving member is fixed to the entire front inner crotch cloth. 7. The bending rigidity value of the rigidity improving member is from 1 to 5.
It is 0 cN / cm, The sanitary shorts in any one of Claims 1-6. 8. The sanitary shorts according to claim 1, wherein the left and right edges of the inner crotch cloth do not extend laterally beyond the left and right edges of the crotch portion of the shorts body.