JP2011050683A - Sanitary shorts - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide sanitary shorts having leg openings in the femoral regions, stably retaining the shape of a sanitary napkin, or the like, with little displacement when the shorts are worn, and providing an excellent sense of wearing for a wearer. <P>SOLUTION: The sanitary shorts have a waist opening and a pair of leg opening located in the femoral regions when the shorts are worn. The shorts also have a crotch part at a crotch position in a girth, which covers the girth of the wearer composed of a front body portion, a side body portion and a rear body portion, in such a way as to divide the pair of leg openings. An inner crotch cloth to attach an absorbent article is joined to the girth cloth in such a way as to overlap the crotch part. The extensibility in the height direction of a buttocks region covering the swelling of the buttocks in the rear body portion of the girth is higher than the extensibility in the lower abdominal region of the front body portion. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sanitary short used by attaching a sanitary absorbent article to an internal crotch cloth.

  Conventionally, in the sanitary shorts, emphasis has been placed on the wearability of the sanitary napkin to the crotch part and the prevention of oozing and dirt at that portion. Recently, further improvements have been made to improve the sliding down and the fit of the napkin. In order to ensure that the sanitary napkin is brought into close contact with the crotch part, a short having a lifting member made of a stretchable material extending around the front body, the crotch part, and the back body has been proposed (see Patent Document 1). In addition, there has also been proposed a method in which an expansion / contraction part is provided from the waist part around the back of the shorts to the crotch part, the expansion / contraction part is brought into close contact with the groove of the buttocks, and the sanitary napkin is fixed to the body with a convex shape ( Patent Document 2). Furthermore, the thing which makes the longitudinal extension of the front body smaller than a horizontal direction, suppresses the vertical extension of sanitary shorts to the whole, and improves the adhesiveness of sanitary goods is proposed (patent document 3). . These are so-called normal type shorts where the underwear is near the waist.

  By the way, with the diversification of fashion in recent years, various styles of sanitary shorts have been demanded. In particular, due to the trend of shallow clothing called “low rise”, there is a demand for a short sanitary shorts corresponding to this. As low-rise underwear, those with a lower leg and a leg mouth (leg opening) on the thigh are popular compared to V-shaped shorts.

JP 2001-245929 A JP 2001-276129 A JP 2002-17782 A

In low-rise shorts, the crotch is shallow, and the side portion is worn so as to be hooked on the hip bone (iliac crest). Therefore, it is desirable that there is a stretching force commensurate with this to prevent slipping off and to make it comfortable to wear. Although it is conceivable to adjust the stretchability of each member of the low-rise shorts considering only such wearability, this may impair the stability of a sanitary product or the like attached to the inside. In the first place, in the case of sanitary shorts where the leg opening is on the thigh, the sanitary napkin attached to the internal crotch cloth, etc. is greatly affected by the slippage and movement of the foot when compared with the V-shaped inseam Is difficult to hold stably in the crotch. This type of shorts is comfortable to wear and stable when worn, and can stably hold the sanitary napkin at the crotch without interfering with the movement of the foot. It is not easy to suppress the displacement and twist of the napkin, and so far there has been little knowledge of technical research.
In view of the above points, the present invention provides a sanitary short with a leg opening in the thigh, and there is little displacement of a sanitary napkin or the like when worn, and the shape can be stably held. The object is to provide a sanitary short with a good fit.

  The above-mentioned problem is a sanitary short having a waist opening and a pair of leg openings located on the thigh when worn, and the short comprises a front part, a side part, and a back part. A crotch part is formed at the crotch position so as to divide the pair of leg openings, and an internal crotch cloth on which an absorbent article is attached overlaps the crotch part. The stretchability in the height direction of the buttocks region, which is joined to the waistline fabric and wraps the swelling of the buttocks in the rear body part of the waistline, is achieved by the sanitary shorts higher than the lower abdomen region of the front body part.

  According to the present invention, in a sanitary short having a leg opening in the thigh, it is possible to stably maintain a fixed state of an absorbent article such as a sanitary napkin attached to an internal crotch cloth. Falling is prevented, and fit and support are good, and a stable wearing feeling that is comfortable to wear can be obtained.

It is the perspective view which showed typically the shape at the time of wear which looked at the sanitary shorts of preferable embodiment in this invention from diagonally back. It is the perspective view which showed typically the shape which looked at the sanitary shorts shown in FIG. 1 from (a) back and (b) front. It is the top view which showed typically the shape which looked at the sanitary shorts shown in FIG. 1 from the top. It is explanatory drawing which shows the stabilization state of an internal crotch cloth by the partial top view which looked at the sanitary shorts shown in FIG. 1 from the crotch. It is a fragmentary perspective view which shows typically the aspect which wears the sanitary napkin to an internal crotch cloth. It is sectional drawing of the IV-IV sectional view of the sanitary shorts shown in FIG. FIG. 2 is a perspective view schematically showing the assembly structure of the shorts body 1 of the present embodiment more greatly.

  FIG. 1 is a perspective view schematically showing a shape of a sanitary shorts according to a preferred embodiment of the present invention as viewed from an oblique rear side. The sanitary shorts of this embodiment are a waistline fabric 6 (waistline) and a crotch cloth 7 (inseam part) joined thereto, and a waist opening Wo and a pair of leg openings Lo are divided by the inseam cloth 7. A shorts body 1 is provided. An internal crotch cloth 8 (see FIG. 3) is joined and attached to a position overlapping the crotch cloth 7 inside the shorts body 1 at the front side and back side of the body 1. In the present invention, the overlapping of the cloth pieces means that there is at least a partial overlap in the direction perpendicular to the surface direction of both the cloth pieces, and it is preferable that there is an overlap in the main part of both the cloth pieces. The waistline cloth 6 is composed of a front part F, a side part S, and a rear part R (see FIG. 3). In the rear body portion R, the buttocks elastic band portion 5 is provided between the buttocks region 2 that wraps the bulges of the two buttocks, and the stretch suppression regions 25 and 26 are provided above and below the buttocks region 2. And the waist fastening part 17 with which the tensile force was raised is arrange | positioned at the periphery of a waist opening part, and the leg fastening part 18 with the same high tensile force is arrange | positioned at the periphery of a leg opening part. The sanitary shorts of the present embodiment have a shallow rise and are worn at the side of the body part S, particularly by tightening the fastening part 17 at the periphery of the waist opening from the spine 19 to the iliac crest 16 connected in the body to prevent slippage. .

FIG. 2A is a perspective view schematically showing the shape of the sanitary shorts of this embodiment as viewed from the back, and FIG. 2B is a perspective view schematically showing the shape as viewed from the front. is there. In the sanitary shorts of the present invention, the armpit portion S refers to a region of the waistline fabric 6 that is crossed by the coronal surface of the body including the iliac crests on both sides. It is. The front waist portion F and the back waist portion R are the respective regions excluding the side waist portion S before and after dividing the waistline fabric 6 by the coronal surface (see FIG. 3). In the present embodiment, the lower abdominal region 4 is a region from the lower abdomen that does not include the waist tightening portion 17 and the leg tightening portion 18 to the crotch that extends from the lower abdomen to the crotch. On the other hand, the buttock region 2 is a region of the rear body portion R that is against the bulge of the buttocks above the heel groove and refers to a portion excluding the buttock elastic band portion 5 corresponding to the crack.
In the sanitary shorts of the present invention, the _{stretchability} (E _rl ) in the height direction of the buttocks region 2 of the rear waist portion R is higher than the _{stretchability} (E _fl ) in the height direction of the lower abdominal region 4 of the front waist portion F. (E _rl > E _fl ). By doing in this way, while the front F is stabilized by the knitting structure | tissue with small stretchability (longitudinal stretch) of the height direction, the front length can be supported firmly, and the stable wearing state can be implement | achieved. On the other hand, from the side to the hip, it is a knitted structure with a large vertical stretch, and it can accept the stretch that changes greatly with exercise, and can cope with the surface area of the hip that protrudes with the roundness of women. Furthermore, when the buttocks region 2 of the rear part R is sufficiently extended in the vertical direction, the foot and mouth are also stabilized, and a three-dimensional foot and mouth line that makes it easy to put the foot forward is formed. Furthermore, the stretchability of the front body part, particularly around the pubic hill, is reduced so that the movement is reduced, and the front body part F works like a base, where the inseam cloth 7 and the internal crotch cloth 8 are joined. Since the relative position is fixed, the sanitary napkin attached to the internal crotch cloth 8 is stably held.

In addition, the extensibility in this invention means the elongation rate at the time of 500 cN load, and the value means the value measured by the method shown below unless there is particular notice. The stretch ratio (E _rl / E _fl ) in the height direction of the buttocks region 2 and the front body part F is preferably 4 to 8, and more preferably 5 to 7. More specifically, the stretchability value in the height direction of the front body portion is preferably 40% to 80%, and more preferably 50% to 70%. The stretch value in the height direction of the buttocks region is preferably 360% to 420%, and more preferably 380% to 400%.

[Measurement method of extensibility]
From the shorts, the dough is cut out in a size of 100 mm in the longitudinal direction and 25 mm in the width direction to make a test piece, which is measured using a Tensilon tensile tester RTC-1210A (trade name, manufactured by ORIENTEC). The distance between the chucks of Tensilon is set to 50 mm, 25 mm each of the upper end and the lower end in the longitudinal direction of the test piece is gripped by the chuck, the head speed is operated at 300 mm / min, and the elongation rate at a load of 500 cN is measured. When the width of the test piece is less than 25 mm, conversion to 25 mm width is performed. The average value of the test piece measured at three points is defined as the extensibility of each part of the shorts.

In the present embodiment, the stretchability (E _sl ) in the height direction of the side waist portion S is preferably higher than the _{stretchability} (E _fl ) in the height direction of the front waist portion F (E _sl > E _fl ). As can be seen from FIG. 1, the armpit portion S is stretched in the height direction to be easily hooked on the iliac crest 16 so that a stable wearing feeling can be obtained. The stretch ratio (E _sl / E _fl ) in the height direction of the side part and the front part is preferably 0.5 to 3.5, and more preferably 1 to 3. Specifically, the stretchability value in the height direction of the side of the body is preferably 110% to 150%, and more preferably 120% to 140%. The stretchability (E _sl ) of the armpit portion S in the height direction is higher than the _{stretchability} (E _fl ) of the front waist portion F in the height direction and lower than the _{stretchability} direction (E _rl ) of the buttocks region 2. More preferably (E _rl > E _sl > E _fl ).

Further, in the present embodiment, the rear body portion R has stretch suppression regions 25 and 26 above and below the buttocks region 2. The _{stretchability} E _yl (see FIG. 2) in the height direction of the stretch suppression regions 25 and 26 is lower than the _{stretchability} E _{rl in} the height direction of the buttocks region 2 (E _yl <E _rl ). This improves the fit and support of the shorts to the body, and the lower stretch suppression region 26 fits the sanitary napkin attached to the inner crotch cloth 8 to the crotch part and holds it stably.
As another aspect of the stretch suppression regions 25 and 26, the _{stretchability} E _yw (see FIG. 2) in the diameter expansion direction (direction perpendicular to the height direction) is lower than the _{stretchability} E _{rw in} the diameter expansion direction of the buttock region 2. (E _yw <E _rw ). This improves the fit and support of the shorts to the body, and the lower stretch suppression region 26 fits the sanitary napkin attached to the inner crotch cloth 8 to the crotch part and holds it stably.
It is preferable that the stretch suppression regions 25 and 26 are located above and below the buttocks region 2 and are continuous with the armpit portion S. 1-5 are preferable and, as for ratio ( _Erl / _Eyl ) of the _{stretchability of the length} direction of an expansion _| extension suppression area | region and a buttocks area | region, 2-4 are more preferable. More specifically, the stretchability value in the expansion direction of the stretch suppression region is preferably 130% to 170%, and more preferably 140% to 160%.

  In the rear part R of the shorts of the present embodiment, the internal crotch cloth 8 is located above the position 22 where the crotch cloth 7 is joined to the waistline cloth 6 by a distance a, that is, a position on the waist opening side. 32. The interval a is the shortest interval (distance) of the cloth at the time of wearing from the joining position 22 of the crotch cloth 7 with the waistline cloth 6 to the joining position 32 of the internal crotch cloth 8 in the wearing state in the wearing state. Although this space | interval a is not specifically limited, 2-20 mm is specifically preferable, and 5-15 mm is more preferable. In the present embodiment, the joining position 32 of the internal crotch cloth 8 forms a part of the extension suppressing region 26. In this way, the internal crotch cloth 8 is strongly pulled up by the stretch suppression region 26 even for exercises such as walking when worn, and the fit of the sanitary napkin is improved. The followability to movement is improved. In addition, the stitching at the joining position 32 suppresses the stretchability of the portion, and the stretch restraining region 26 is more effectively prevented from stretching.

  FIG. 3 is a plan view schematically showing the shape of the sanitary shorts of this embodiment as viewed from above. The front waist part F, the side waist part S, and the back body part R constitute a cylindrical waistline fabric 6 in succession.

  FIG. 4 is an explanatory view showing a stabilized state of the internal crotch cloth by a partial plan view of the state where the sanitary shorts are worn as seen from the crotch. The buttocks region 2 of the rear part R having high extensibility expands and contracts following the movement of the body. On the other hand, the lower abdominal region 4 of the front body part F is restrained from stretching in the height direction compared to the buttocks region 44, and thus is statically fixed regardless of the movement of the right foot 51 and the left foot 52. It is in such a state. Since the internal crotch cloth 8 is joined to the fixedly disposed front body part F by the front joint part 31, it is stably held even if the rear body part R expands and contracts and moves. Especially in the lower abdominal region 4, since the stretchability of the fabric corresponding to the pubic hill with less physical movement is suppressed, the sanitary napkin fixed here and attached to the internal crotch cloth 8 is stably maintained in the crotch. The Rukoto. More specifically, in the present embodiment, as described above, the lower abdomen region 4 with reduced stretchability in the front-rear direction is arranged from the lower abdomen having less undulations to the pubic q, and the inseam cloth 7 and Since the internal crotch cloth 8 is joined, this region functions as a fixing base, and particularly fixes the periphery of the crotch cloth front joint part 21 and the inner crotch cloth front joint part 31. Accordingly, even when the wearer moves such as walking, a stable wearing state is realized without causing the inner crotch cloth 8 at the crotch to be displaced or swung from the excretion point p, which is anxious to be displaced, at the front portion thereof. On the other hand, the portion near the anus on the back side of the inner crotch cloth 8 is allowed to move while slightly biting along the crack o rather than being fixed too much, and the elasticity of the buttocks region propagates and is appropriately pulled up. Stabilize. Further, the hip elastic band part 5 fixes the position of the shorts and the inner crotch cloth at the center along the crack, and the high stretchable buttocks area 2 that is softly stretched is arranged on both sides thereof. On the contrary, it does not hinder the stability of the internal crotch cloth while fitting to the bulge of. This ensures both good wearing comfort in low-rise shorts and the retention stability of sanitary products attached to the internal crotch cloth.

In the case of shorts with leg openings on the thigh, the width of the crotch cloth tends to be wide, so fold the sanitary napkin wing here and attach the napkin with wings directly to the crotch cloth (outer cloth) Is not practical. On the other hand, in the sanitary shorts of this embodiment, in order to be able to use a napkin with wings, an internal crotch cloth is provided in which the crotch portion is doubled and the wings fit inside the shorts. The state of wearing the sanitary napkin on the internal crotch cloth will be described below with reference to FIG.
FIG. 5 is a partial perspective view schematically showing a state in which a sanitary napkin 80 with wings is attached to the internal crotch cloth 8 provided to overlap the crotch cloth 7. The wing 80a of the sanitary napkin 80 is folded along the edge of the internal crotch cloth 8 as indicated by an arrow, and is worn between the internal crotch cloth 8 and the crotch cloth 7.

  FIG. 6 is a cross-sectional view taken along line IV-IV of the sanitary shorts shown in FIG. However, it is schematically shown, and in an actual wearing state, the internal crotch cloth 8 is normally in contact with the crotch cloth 7 so as to be pressed. Explaining the relationship with the body part in the wearing state, the waist opening Wa is located at the height of the upper part of the iliac bone (approximately from the iliac crest 16 to the upper anterior iliac spine) in the pelvis and below the navel 11. . Thus, it is preferable that the waist opening is positioned lower than that of a normal pants type so that it does not protrude even if it is combined with low-rise pants. The sanitary shorts 10 according to this embodiment covers the abdomen from the right inguinal part to the left inguinal part via the lower abdomen (pubic part), and the back part is attached so as to cover the buttocks on the back side. At this time, the skirt La forming the leg opening (see FIG. 2) Lo is located above the thigh 15. Further, in the vicinity of the wearer's midline, the waistline fabric 6 comes into contact with the pubic hill at the pubic abutment portion 12 and comes into contact with the anus at the anus contact portion 14. In addition, the internal crotch cloth 8 corresponds to the vaginal opening at the vaginal opening contact portion 13, and a sanitary napkin can be attached here to appropriately absorb excretion such as menstrual blood. As will be described later, the crotch cloth 7 is joined to a portion where the cylindrical waistline cloth 6 is cut out, and is passed between a front joining position 21 and a rear joining position 22 to constitute a crotch part of the shorts body 1 (see FIG. 7). The inner crotch cloth 8 is joined at the same position 31 as the front joining position 21 of the crotch cloth 7 on the front side (see FIG. 6), and above the rear joining position 22 of the crotch cloth 7 on the rear side, that is, an anus contact. Joined at a rear joining position 32 near the portion 14.

  FIG. 7 is a perspective view schematically showing the assembly structure of the shorts body 1 of the present embodiment. The main body 1 of the sanitary shorts according to the present embodiment is composed of the cylindrical waistline (garment) fabric 6 and the crotch fabric 7 as described above. The waistline fabric 6 is, for example, a cylindrical shape having a predetermined length by a circular knitting machine. Knitted fabric. An inverted U-shaped cut 9 is made at a desired depth corresponding to the crotch dimension at a position to be a crotch portion of the fabric, and a crotch cloth 7 bent into an inverted U-shape is joined to the cut portion. At this time, the abdominal side joining line 21a of the crotch cloth 7 and the abdominal side joining line 21b of the waistline cloth 6 are joined, and the back side joining line 22a of the inseam cloth 7 and the back side joining line 22b of the waistline cloth 6 are joined. . It is preferable that the waist opening edge (waist) Wa and the leg opening edge (hem) La, which become the knitting and finishing of the fabric, are processed in a bag shape (knit-in). When the edge is knit-in, the skin feel is improved.

  The crotch cloth 7 joined in this way forms an inverted U-shaped or ribbed shape that is convex toward the wearer's head at the crotch when worn. Although the internal crotch cloth 8 is not shown in FIG. 7, the front crotch cloth 8 is attached to the body together with the crotch cloth 7 only on the front side of the stomach side so as to be above the crotch cloth 7 (skin side when worn). After the crotch cloth 7 is joined to both the front and back, the back of the internal crotch cloth is joined to the cloth below the hips in the body above the joining position of the crotch cloth.

  In this embodiment, the internal crotch cloth 8 is preferably attached so that there is a gap between the crotch cloth 7 from the front joining position 31 to the rear joining position 32 by selecting the length of the cloth (see FIG. 6). . A sanitary napkin or the like is fixed on the inner crotch cloth 8 without being bent, and is held in a stable shape, thereby providing good support. When worn, the sanitary napkin or the like is mounted on the inner crotch cloth 8, but when there is a wing, it can be fixed between the back of the inner crotch cloth 8 and the crotch cloth 7.

In the sanitary shorts of the present invention, it is preferable that the rise is shallow and the waist opening is close to the line connecting the iliac crest. The leg opening is located on the thigh. For example, in the case of an average Japanese woman, specifically, the crotch part h (see FIGS. 2 and 6) is preferably 13 to 20 cm, and more preferably 15 to 18 cm. The crotch part 1 (see FIGS. 2 and 6) is preferably 1 to 7 cm, more preferably 2 to 5 cm, but h and l are not particularly limited thereto.
The ratio between the height and the width is preferably 1: 1 to 1: 1.7, and more preferably 1: 1.1 to 1: 1.5 as (h + 1): w (see FIG. 2).

The stretchability of the waistline fabric of the sanitary shorts of the present invention is adjusted for each part as described above. Such a fabric can be adjusted and manufactured by selecting the type of fiber to be used, selecting a knitting method, increasing or decreasing the amount of fiber, and the like. For example, in a circular knitting machine, operations such as partially using highly stretchable yarns can be easily performed, and thus it is suitable for manufacturing such a fabric. In addition, since it can be manufactured integrally with a circular knitting machine, it can be prevented from forming a stitched portion of the fabric that becomes a stretchable discontinuous portion by stitching in the circumferential direction from the abdomen to the buttocks. Easy to follow. Specifically, in the stretch portion, the stretchable fiber is made to have a lower fiber amount than the stretch suppression region, and in the stretch suppression region, a knitting method (flat knitting or pearl knitting) that is difficult to stretch with a high fiber amount is adopted. Can be manufactured.
The rear body is particularly preferably one that is three-dimensionally adjusted to fit the bulge of the buttocks. At this time, the form which has a high expansion-contraction site | part with a high stretchability of a height direction rather than both sides in a center part in the back part back side, ie, a buttocks elastic band part, is preferable. For example, in the embodiment shown in FIG. 1, a collar elastic band portion 5 having a lower stretchability than the both sides on the back side is provided at the center of the back side of the waistline fabric 6. By doing in this way, the napkin is pulled up at the time of wearing, and it is appropriately pressed against the crotch part with a stable shape. In addition, the sanitary shorts fit the buttocks and the wearing feeling is good. As another form, the center of the back body is preferably provided with a stitch that stops expansion and contraction along the crack at the time of wearing because the effect of raising the napkin appears. In conventional sanitary shorts, with the aim of such a lifting effect of the napkin, a method such as sewing an elastic tape on a portion along the crack at the time of wearing has been taken. On the other hand, since another member is not used in the present invention, unevenness and a hard part are not formed around the trunk of the shorts, and the wearing feeling is not reduced. Since a separate member joining step is not required, it is advantageous in manufacturing.

  The elongation ratio of the internal crotch cloth is preferably smaller than the width direction (direction perpendicular to the longitudinal direction) in the longitudinal direction (direction from the front side to the back side). By setting it as such an elongation rate, a sanitary napkin can be contact | adhered moderately to skin, without reducing a feeling of mounting | wearing. The elongation at a load of 500 g is preferably 15 to 45% in the longitudinal direction, and more preferably 20 to 40%. 10-50% is preferable and the difference of the elongation rate of a longitudinal direction and the width direction has more preferable 20-40%.

DESCRIPTION OF SYMBOLS 1 Shorts body 2 Butt area 3 Side area 4 Lower abdomen area 5 Hip elastic band part 6 Girth cloth 7 Crotch cloth 8 Internal crotch cloth 9 Notch 10 Sanitary shorts 11 Umbilical 12 Umbrella contact part 13 Vaginal opening contact part 14 Anus contact part 15 Thigh 16 Iliac crest 17 Waist fastening part 18 Leg fastening part 19 Spine 21 Crotch cloth front joint part 22 Crotch cloth rear joint part 25, 26 Stretch suppression region 31 Internal crotch cloth front joint part 32 Internal crotch cloth rear part Joint 51 Right foot 52 Left foot F Front part S Sakimi part R Rear part Wo Waist opening Lo Leg opening

Claims (5)

A sanitary short having a waist opening and a pair of leg openings located on the thigh when worn,
The shorts have a crotch portion formed at a crotch position so as to separate the pair of leg openings on a waistline covering a wearer's waistline composed of a front body part, a side body part, and a back body part, Further, an inner crotch cloth for attaching an absorbent article is joined to the waistline fabric so as to overlap the crotch part, and the stretchability in the height direction of the buttocks region that wraps the swelling of the buttocks at the back waist part of the waistline is the front waist part High sanitary shorts compared to the lower abdominal region.   The sanitary shorts according to claim 1, wherein the waistline has a higher stretchability in the height direction of the side of the waist than the lower abdomen region of the front body.   The sanitary short according to claim 1 or 2, wherein in the waist, the stretchability in the height direction of the side waist portion is higher than the lower abdomen region of the front body portion and lower than the buttocks region of the rear body portion. .   The said waistline has the expansion | extension suppression area | region which made the expandability of the diameter expansion direction lower than the peripheral part in the waist opening side and leg opening part side of the buttocks area | region in the said back body part, respectively. The sanitary shorts according to item 1.   The sanitary short according to claim 4, wherein a portion where the inner crotch cloth is joined to a rear body part of the waistline forms a part of the stretch suppressing region on the leg opening side of the buttocks region.

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