Sanitary shorts

Abstract

To provide sanitary shorts which allow a body fluid absorbent article such as a sanitary napkin to be fitted to a prescribed required position properly.SOLUTION: Inner surfaces 10 of a rear girth region 3 and a crotch area 4 of sanitary shorts 1 comprise: first parts 31, 41 extending in a manner of matching to a center line P which divides a dimension of the sanitary shorts 1 in a lateral direction B into two parts equally; and second parts 32, 42 which are symmetric related to the center line P. The sanitary shorts 1 is configured so that, positioning means in a lateral direction B for a body fluid absorbent article 100 which is fitted to the shorts and worn by a wearer are formed as one out of, one row of marks 30a, 40a to the first parts 31, 41, and two rows of marks 30b, 40b which are paired and which are for the second parts 32, 42. On at least one marks out of these marks, there are included position identifying elements 31a, 31b, 41a, 41b by which, positions in a direction where the center line P extends, can be identified, and which serve as positioning means in any of a cross direction A and a vertical direction C to the body fluid absorbent article 100.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to sanitary shorts, and more particularly to sanitary shorts suitable for wearing with a bodily fluid absorbent article such as a sanitary napkin attached. [Background technology]

[0002] Sanitary shorts to which bodily fluid absorbent articles such as sanitary napkins and urine-absorbing pads are attached are well known.

[0003] Sanitary shorts that are provided with a positioning means for attaching an absorbent article are also known. Such positioning means have the effect of facilitating attachment of the absorbent article to a desired position on the sanitary shorts and facilitating repeated attachment. The purpose of this effect is to enable the absorbent article to be repeatedly attached to a desired position on the body. Examples of prior art that teach this effect include the following:

[0004] For example, Patent Document 1 discloses sanitary shorts that have a plurality of parallel stitching lines extending laterally at regular intervals from the crotch area, which can be used as markers to determine the position of the front end of the absorbent article.

[0005] The absorbent article described in Patent Document 2 is a disposable disposable diaper that can be used in combination with an inner pad, and the top sheet and inner pad of the disposable diaper are provided with positioning marks and alignment marks in the longitudinal direction, as well as with positioning marks and alignment marks in the width direction. One example of the positioning marks in the longitudinal direction is a plurality of horizontal lines extending parallel to each other in the lateral direction of the disposable diaper. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2008-119161 [Patent Document 2] Patent Publication No. 2003-93438 Summary of the Invention [Problem to be solved by the invention]

[0007] The invention described in Patent Document 1 does not have any marks that serve as a means for positioning the absorbent article in the lateral direction, making it difficult to repeatedly and accurately attach the absorbent article in the lateral direction.

[0008] Furthermore, in the invention described in Patent Document 2, in addition to marking the disposable paper diaper, it is also necessary to mark the inner pad for alignment in the longitudinal and lateral directions, making it difficult to use commercially available inner pads with the disposable paper diaper of this invention.

[0009] In addition, Patent Documents 1 and 2 do not describe the technical idea of ​​enabling a bodily fluid absorbent article worn together with sanitary shorts to continue to be in contact with a desired part of the body.

[0010] In view of the above circumstances, an object of the present invention is to provide sanitary shorts that facilitate accurate contact of a bodily fluid absorbent article with a desired part of the body. [Means for solving the problem]

[0011] In order to solve the above problem Mehon invention Purpose teeth ,raw To provide sanitary shorts that enable accurate attachment of a bodily fluid absorbent article such as a medical napkin to a required part of the sanitary shorts, thereby enabling the bodily fluid absorbent article to be properly attached to a required part of the body. That, or,To provide sanitary shorts capable of maintaining a state in which a bodily fluid absorbent article attached to the sanitary shorts is in proper contact with a required part of the body. That is the thing.

[0012] Book The subject of the invention is sanitary shorts that can be worn together with a bodily fluid absorbent article, having front-to-back, lateral, and up-to-down directions that are perpendicular to each other, and having a front waist region, a rear waist region, and a crotch region, the front and rear waist regions forming a waist opening, and the front and rear waist regions and the crotch region forming a pair of leg openings.

[0013] In such sanitary shorts, Book The invention is characterized as follows: The sanitary shorts have an inner surface facing the skin of the wearer of the sanitary shorts and an outer surface facing the clothes of the wearer. death, the rear waist region and the crotch region Before The inner surface includes a first portion extending in line with a center line that bisects the horizontal dimension of the sanitary shorts, and second portions located on both sides of the center line and symmetrical with respect to the center line, and a positioning means in the horizontal direction for the body fluid absorbent article attached to the inner surface so as to extend along the center line is formed as at least one of a single mark for the first portion and a pair of two marks for the second portion, and the at least one mark includes a position identification element that can identify a position in the direction in which the center line extends and serves as a positioning means in either the front-to-back direction or the up-to-down direction for the body fluid absorbent article. When at least one of the single marker and the pair of two markers is the single marker, in the rear waistline region, the single marker is a central marker continuing in the front-to-back direction; when at least one of the single marker and the pair of two markers is the pair of two markers, in the rear waistline region, the pair of two markers are side markers continuing in the front-to-back direction; when at least one of the single marker and the pair of two markers is the single marker, in the crotch region, the single marker extends in the front-to-back direction in a manner different from the central marker in the rear waistline region; when at least one of the single marker and the pair of two markers is the pair of two markers, in the crotch region, the two pair of markers extend in the front-to-back direction in a manner different from the side markers in the rear waistline region; When at least one of the pair of markers is the single marker, a position identification element that intersects with the central marker is formed in the rear waistband region so as to extend in the horizontal direction relative to the single marker, when the single marker and at least one of the pair of two markers are the two pair of markers, a position identification element that intersects with the side marker is formed in the rear waistband region so as to extend in the horizontal direction relative to the two pair of markers, when the single marker and at least one of the pair of two markers is the single marker, no position identification element that intersects with the central marker is formed in the crotch region, and when the single marker and at least one of the pair of two markers are the two pair of markers, no position identification element that intersects with the side marker is formed in the crotch region relative to the two pair of markers.

[0014] Book In one embodiment of the invention, In the rear waist region, the pair of marks is formed by only the side marks and the position identifying elements.

[0015] BookIn another embodiment of the invention, the plurality of position identification elements are either a combination of position identification elements that are all the same in shape, size, and color, or a combination of position identification elements that are different in at least one of shape, size, and color.

[0016] Book In another embodiment of the invention, among the multiple position identification elements arranged in at least one of the front-to-back direction and the up-to-down direction, at least one of the position identification elements has either a larger dimension and the same shape as the other position identification elements in at least one of the front-to-back direction, the lateral direction, and the up-to-down direction, or a shape different from the other position identification elements.

[0017] Book In another embodiment of the invention, the crotch region has a first crotch region and a second crotch region extending in the front-to-rear direction and overlapping each other in the up-down direction, the first crotch region being located below the second crotch region, and a first front end portion and a first rear end portion extending in the laterally direction at both ends in the front-to-rear direction being connected to the front waist region and the rear waist region, respectively, via a joining line, and the second crotch region has a second inner surface facing the wearer's skin and a second outer surface facing the first crotch region. the lateral dimension is smaller than the lateral dimension of the first crotch region, second front end portions and second rear end portions extending in the lateral direction at both ends in the front-to-rear direction are connected to the front waist region and the rear waist region, respectively, via the joining lines, a portion between the second front end portion and the second rear end portion is separable from the first crotch region in the up-down direction, and at least one of the single marker and the pair of two markers is formed on the second inner surface of the second crotch region.

[0018] BookIn another embodiment of the invention, the first crotch region has first side edges located on both sides in the lateral direction that extend in the front-to-rear direction while describing concave curves, while the second side edges located on both sides in the lateral direction of the second crotch region extend in the front-to-rear direction while describing straight lines.

[0019] In another embodiment of the present invention, The The distance between the two side edges is the width of the second crotch region, which is in the range of 60-115 mm.

[0020] Book In another embodiment of the invention, a sheet piece having a shape symmetrical with respect to the center line is attached to the inner surface of the rear waist region, and at least one of the single marking and the pair of two marks is formed on the inner surface of the sheet piece facing the wearer's skin.

[0022] In another embodiment of the present invention, the sanitary shorts are Elastic bands extending in the vertical direction and overlapping the centerline are sewn in a stretched state to the inner surface of the rear waistband region. The rear waistband region is contractible in the vertical direction along the centerline, integral with the elastic bands. A covering sheet extending in the vertical and horizontal directions and covering the elastic bands is sewn to the rear waistband region at its peripheral edge on the inner surface of the rear waistband region. When the elastic bands contract, the rear waistband region contracts in the vertical direction while generating numerous gathers along the centerline. Meanwhile, the covering sheet is movable inward from the sewn peripheral edge without being restricted by the opposing portion of the rear waistband region, and even if gathers are generated in the rear waistband region, no gathers are generated in the inner portion.

[0023] BookIn one embodiment of the invention, the cover sheet can be releasably bonded to the body fluid absorbent article.

[0024] In the front-to-back direction, a rear end edge in the front-to-back direction of the central mark constituting the single mark in the crotch region and the rear waist circumference the law of nature The front end edges of the central markers constituting the one marker in the crotch region are spaced apart in the front-to-back direction, and the rear end edges of the side markers constituting the two pairs of markers in the crotch region and the rear waist marker are spaced apart in the front-to-back direction. the law of nature The front edges of the side markers constituting the pair of markers in the area are arranged with a gap between them in the fore-and-aft direction. [Effects of the Invention]

[0026] Book In the sanitary shorts of this invention, a single marking strip for a first portion extending along the centerline and a pair of marks for a second portion symmetrical about the centerline serve as means (markers) for aligning the lateral center of a bodily fluid absorbent article, such as a sanitary napkin, attached to the sanitary shorts with the centerline of the sanitary shorts. Furthermore, the positional identification elements in the single marking strip and pair of marks serve as means (markers) for positioning the bodily fluid absorbent article in the front-to-back and / or up-to-down directions when attaching it to the sanitary shorts. When the bodily fluid absorbent article is attached to the sanitary shorts using these means (markers), it can be accurately positioned against the desired parts of the wearer's body when the sanitary shorts are worn.

[0027] BookIn the sanitary shorts of the invention, the part of the cover sheet inside the peripheral part is in a state where it can move without being restrained by the sanitary shorts. Therefore, if the rear end of a bodily fluid absorbent article such as a sanitary napkin attached to the sanitary shorts is joined to that inner part, the bodily fluid absorbent article, which is in close contact with the wearer's skin due to the wearer's sweat or bodily fluids, will move along with the buttocks together with the inner part of the cover sheet when only the wearer's buttocks move inside the sanitary shorts, and will be able to maintain a state of accurate contact with the required parts of the buttocks. [Brief explanation of the drawings]

[0028] The drawings illustrate specific embodiments of the invention according to the present disclosure, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] Front view of sanitary shorts. [Figure 2] Back view of sanitary shorts. [Figure 3] A diagram showing sanitary shorts unfolded in the front and back directions. [Figure 4] FIG. 4 is an enlarged view of a portion IV of FIG. 3. [Figure 5] FIG. 4 is an enlarged view of a portion V in FIG. 3. [Figure 6] FIG. [Figure 7] 10A and 10B are diagrams illustrating the center marking and side markings of the rear waistband region and the position identification elements on these markings. [Figure 8] FIG. 4 is a view similar to FIG. 3 showing an example of an embodiment of sanitary shorts. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8. [Figure 10] (a) and (b) are diagrams showing the procedure for attaching the napkin. [Figure 11] 1A to 1E are diagrams illustrating markers and position identification elements. [Figure 12] 2(a) to 2(c) are diagrams showing sanitary shorts in a different form from that shown in FIG. 1. [Figure 13]FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 12. DETAILED DESCRIPTION OF THE INVENTION

[0029] The sanitary shorts according to the present invention will be described in detail below with reference to the accompanying drawings.

[0030] 1 and 2 are front and back views of sanitary shorts 1. Sanitary shorts 1 are suitable for wearing with absorbent articles such as sanitary napkins or urine-absorbing pads placed inside. They have a front-to-back direction A, a lateral direction B, and a vertical direction C, which are perpendicular to each other. In FIGS. 1 and 2, the front-to-back direction A is shown as a double-headed arrow A diagonally intersecting the lateral double-headed arrows B and C. In FIGS. 1 and 2, the sanitary shorts 1 have a front waist region 2, a rear waist region 3, and a crotch region 4. The front and rear waist regions 2 and 3 form a waist opening 5, and the front and rear waist regions 2 and 3 and the crotch region 4 form a pair of leg openings 6. The periphery of the waist opening 5 is formed by a strip of fabric 8 sewn into the front and rear waist regions 2 and 3. An elastic strip 9, which extends circularly in either a stretched or unstretched state, is placed inside the strip 8, allowing it to stretch in the waist direction. The front and rear waist regions 2 and 3 are formed by joining the first body fabric 11 and the second body fabric 12 together at a pair of seams 14 located in the front waist region 2. However, in the present invention, stitching of sheet materials such as woven fabric, nonwoven fabric, and plastic film can be replaced by adhesive bonding, welding, or other means depending on the sheet material used. In the present invention, the term "joining" may encompass any means such as sewing, adhesive bonding, or welding used to integrate sheet materials. The crotch region 4 is formed by overlapping the third body fabric 13 or the third body fabric with another fabric, and is joined to the front waist region 2 by a seam 16 and to the back waist region 3 by a seam 17. The first, second, and third body fabrics 11, 12, and 13 and the strip 8 are made of elastically stretchable and contractible fabrics. The shapes of the first and second body fabrics 11, 12 shown in the figures are merely examples and can be changed as appropriate. In Figures 1 and 2, the sanitary shorts 1 have a vertical centerline P that bisects the dimension in the horizontal direction B. Line Q in the figures is the horizontal centerline that bisects the dimension in the up-down direction C in Figure 3, which will be described later.

[0031] Figure 3 is a diagram showing the inner surface 10 of the sanitary shorts 1 of Figure 1, cut at both side portions 18 (see Figure 1) and laid out flat in the front-to-back direction A, with the total length of the sanitary shorts 1 in the front-to-back direction A in Figure 3 being divided into two equal parts by a lateral center line Q. In Figure 3, the center line P bisects the dimension of the sanitary shorts 1 in the lateral direction B, and the sanitary shorts 1 are, in a substantial sense, symmetrical with respect to the center line P. Figure 3 also shows, in phantom lines, an example of a sanitary napkin 100 to be attached to the sanitary shorts 1.

[0032] In the sanitary shorts 1, the inner surface 10b in the rear waist region 3 and the inner surface 10c in the crotch region 4 each include a first region 31 and 41 that coincide with the center line P and extend in the front-to-back direction A in Figure 3, and each of these first regions 31 and 41 has a central marker 30a, 40a formed thereon to be used as a positioning marker for the body fluid absorbent article to be set on the inner surface 10, such as the sanitary napkin 100 in the illustrated example, and a pair of left and right second regions 32, 42 that are symmetrical about the center line P in the lateral direction B each have a side marker 30b, 40b formed thereon as a positioning marker.

[0033] 4 is an enlarged view of a portion IV in FIG. 3, and illustrates the configuration of the central marker 30a and the pair of side markers 30b, which are positioning marks on the sanitary shorts 1, as straight lines extending in the front-to-rear direction A. Also, the rear end of the napkin 100 attached to the sanitary shorts 1 minutes The central marker 30a and the pair of side markers 30b are each indicated by a virtual line, and their respective linear positions, in other words, positions in the front-to-back direction A and / or the up-to-down direction C from the lateral center line Q (see FIG. 3), are specified to indicate the rear end of the napkin 100. minutesThe position identification elements 31a, 31b, which serve as positioning means for 102, are arranged at regular intervals in the front-to-back direction A in the drawing and are depicted as horizontal lines that are shorter than the central marker 30a and the side markers 30b. However, the interval does not necessarily have to be regular, and the interval can be changed as appropriate in the front-to-back direction A and / or the up-to-down direction C. Between a pair of side markers 30b, the position identification elements 31b, 31b are positioned symmetrically with respect to the center line P.

[0034] The napkin 100 has a rear end minutes The center position of the rear end portion 30a of the napkin 102 in the lateral direction B is determined by eye, and the center position is aligned with the center mark 30a, which is a straight line, thereby enabling the positioning of the rear waist region 3 of the sanitary shorts 1 in the lateral direction B. minutes The rear end 102 is arranged so that both sides of the rear end 104 intersect with the pair of side markers 30b in the same manner (angle) even though the directions of intersection are different. In other words, the rear end 102 intersects with each of the position identification elements 31b facing each other in the lateral direction B as shown in the figure. minutes 102 may be set relative to the rear waistband region 3. The pair of side markers 30b used in this manner also serve as a positioning means for the rear waistband region 3 in the lateral direction B.

[0035] In this way, the napkin 100 positioned in the transverse direction B also has a trailing edge minutes By matching 102, more specifically the rear edge 104, with any one of the position identification elements 31a in the central marker 30a and / or any one of the pairs of position identification elements 31b facing each other in the lateral direction B in the pair of side markers 30b, the rear edge 104 of the napkin 100 can be accurately set in the position where the napkin 100 should be set in the front-to-back direction A and / or the up-down direction C and the lateral direction B of the sanitary shorts 1.

[0036] FIG. 5 is an enlarged view of a portion V of FIG. 3, showing a single central marking in the crotch region 4. center sign 40a and a pair of side signs Side signs 40b are shown as examples. The single center marker 40a and the pair of side markers 40b may be the same as the center marker 30a and the pair of side markers 30b in Fig. 4, but as shown in the example, they may have different appearances. In Fig. 5, the single center marker 40a and the pair of side markers 40b are each represented by a chain line, and gaps 41a and 41b are formed between the solid line segments f and between the solid line segments g aligned in the front-to-back direction A. The single center marker 40a and the pair of side markers 40b act as a means for lateral positioning of the napkin 100 when the napkin 100 is set in the crotch region 4 (see Fig. 6 described later). In addition, the solid line portions f and g and the gap portions 41a and 41b are portions that act as position identification elements in the front-to-back direction A and / or the up-to-down direction C for the napkin 100, i.e., as positioning means in those directions, and act in the same way as the position identification elements 31a and 31b in Figure 4.

[0037] Fig. 6 is a perspective view of a portion of the sanitary shorts 1 and the napkin 100, illustrating a part of a procedure for setting the napkin 100 in the sanitary shorts 1 illustrated in Figs. 4 and 5. The inner surface of the sanitary shorts 1 is shown with a central marker 30a and two pairs of side markers 30b, as well as a central marker 40a and two pairs of side markers 40b in the crotch region 4. The napkin 100 has a pair of wings 108, and is folded in three and placed in an individual bag (not shown). The napkin 100 has been removed from the individual bag, with the front end portion 101 standing upright and the wings 108 spread out in the lateral direction B. The napkin 100 in Fig. 6 has the front end portion 101 folded at a fold line 105, which is connected to the base portions 106 of the pair of wings 108, as illustrated. The napkin 100 has an outer surface 107 coated with an adhesive 111, and is releasably fixed to the inner surface of the crotch region 4 of the sanitary shorts 1. The wings 108 also have an outer surface coated with an adhesive (not shown), and are releasably fixed to the outer surface of the crotch region 4 of the sanitary shorts 1. The napkin 100 in FIG. 6 has a centerline M that is visually estimated and aligned with the centerline 40a of the crotch region 4. In the figure, the root portions 106 of the wings 108, which are located on the extensions of the fold line 105, for example, at both ends or on the fold line 105, are aligned with the two pairs of side markers 40b. At the same time, the fold line 105 and / or the root portions 106 of the wings 108 are aligned with the two pairs of side markers 40b by forming a plurality of gaps that are positional identification elements in the center marker 40a and / or the side markers 40b. portion 41a and / or gap portion The napkin 100 thus set is fixed to the outer surface of the sanitary shorts 1 by folding the wings 108 in the direction indicated by the arrow Y1, and the front end portion 101 is folded in the direction indicated by the arrow Y2, and the adhesive 111 is attached to the napkin 100. adhesive 108a and 108b are used to fix the napkin 100 to the sanitary shorts 1. Then, the napkin 100 is fixed at the rear end as shown in FIG. minutes102 toward the rear waist region 3 and fixed, completing the attachment to the sanitary shorts 1. The napkin 100 attached in this manner can be set accurately at the required position in the front-to-back direction A while aligning the entire length of the napkin 100 with the center of the sanitary shorts 1 in the lateral direction B. In particular, by aligning the end portions 106 of the fold line 105 or the base portions 106 of the wings 108 with the solid line portions g or gap portions 41b (see FIG. 5) serving as position identifying elements that face each other in the lateral direction B on the pair of side markers 40b, in other words, that are at the same position in the front-to-back direction A, the napkin 100 can be attached to the sanitary shorts 1 in a state where it extends parallel to the center line P of the sanitary shorts 1, i.e., without extending diagonally across the center line P. The napkin 100 can also be set symmetrically about the center line P of the sanitary shorts 1 in the horizontal direction B by aligning two portions of the sanitary shorts 1 that are located on the fold line 105 and are symmetrical about the center line M, such as the portion 105f shown in the figure, with the two pairs of side markers 40b. Also, the napkin 100 can be set on the sanitary shorts 1 using any fold line parallel to the fold line 105, rather than the fold line 105 shown in the figure.

[0038] FIG. 7 shows the rear end of the napkin 100 in FIG. minutes 6 shows the state when the front end 101 and the wings 108 are stretched in the vertical direction C of the sanitary shorts 1, but the napkin 100 is shown in imaginary lines. minutes102 along the centerline P of the sanitary shorts 1. However, as a general rule for napkins, the length of the portion behind the wings tends to increase as the size of the napkin 100 increases. When such a long napkin is attached to the crotch region of the sanitary shorts with its widthwise centerline diagonally intersecting the centerline of the sanitary shorts, the rear end of the napkin may be attached significantly offset from the centerline of the sanitary shorts. However, since the rear waist region 3 of the sanitary shorts 1 according to the present invention is formed with one center marker 30a and / or two pairs of side markers 30b as shown in Figures 4 and 7, the position of the widthwise centerline M of the napkin 100 can be determined by eye with respect to the center marker 30a, and by aligning this position with the center marker 30a, the napkin 100 will naturally be centered in the horizontal direction B of the sanitary shorts 1. Also, instead of using the center marker 30a, the napkin 100 may be attached to the sanitary shorts 1 so that both left and right side portions 104a of the rear edge 104 of the napkin 100 intersect in the same manner (angle) as each of the pair of side markers 30b, as illustrated in Fig. 4. By using the side markers 30b in this way, the napkin 100 can be attached to the sanitary shorts 1 with a balanced left and right, i.e., lateral direction B. The napkin 100 can also be attached to the sanitary shorts 1 with a balanced left and right, i.e., lateral direction B, by using the position identification elements 31a and / or 31b on the center marker 30a and / or side markers 30b. minutes 102 can be attached to the sanitary shorts 1 at a suitable position in the vertical direction C. However, in the case of a napkin 100 in which the wings 108 and the front end 101 are already fixed to the sanitary shorts 1 (see FIG. 6), minutes 102 in the lateral direction B, it may become difficult to use the central marking 30a and / or the side markings 30b and / or the position identification elements 31a and / or 31b.

[0039] As is clear from the above explanation, in the sanitary shorts 1 according to the present invention, the markings for attaching the napkin 100 may be formed only in either the rear waist region 3 or the crotch region 4, unlike the illustrated example. Also, the markings may be formed as at least one of the central markings 30a, 40a positioned in line with the center line P of the sanitary shorts 1 and the side markings 30b, 40b positioned symmetrically with respect to the center line P. Furthermore, the central markings 30a, 40a are a single line, and the side markings 30b, 40b are a pair of two lines. Single central marking 30a, 40a Instead, if two markers are provided close to each other across the center line P, and the separation between the two markers in the lateral direction B is 5 mm or less, the two markers are considered to be substantially one marker in the present invention. This is because two markers separated by a separation of 5 mm or less may function in the same way as a single central marker 30a, 40a, but will not function in the same way as a pair of side markers 30b, 40b. Furthermore, the two markers in each of the pair of side markers 30b and the pair of side markers 40b are preferably spaced apart in the lateral direction by at least 20 mm, more preferably 30 to 80 mm. The sanitary shorts 1 according to the present invention have the central markers 30a, 40a and / or the side markers 30b, 40b, which make it possible to accurately align the lateral central portion of the bodily fluid absorbent article with the center line P of the sanitary shorts 1 when attaching the bodily fluid absorbent article, such as a napkin 100, to the sanitary shorts 1. The central markers 30a, 40a and the side markers 30b, 40b also serve as positioning means for the sanitary shorts 1 in the front-to-back direction A and / or the up-to-down direction C, and the position identifying elements 31a, 31b, gap partThe sanitary shorts 1 include the sanitary shorts 1a and 1b, but like the central markers 30a and 40a and the side markers 30b and 40b, these position identification elements need only be easily recognizable in relation to their surroundings, and there are no particular restrictions on their shape, size, color, etc. Furthermore, there are no particular restrictions on the combination of shape, size, and color. Such markers and position identification elements of the present invention can be obtained by printing on the sanitary shorts 1 or by weaving colored threads into the sanitary shorts 1. In this way, the sanitary shorts 1 according to the first aspect of the present invention enable a bodily fluid absorbent article such as a napkin 100 to be accurately attached at a desired position, thereby allowing the napkin 100 to be accurately attached to a desired part of the wearer's body.

[0040] 8 and 9, Fig. 8 is a view similar to Fig. 3 showing an embodiment of the first invention, and Fig. 9 is a cross-sectional view taken along line IX-IX in Fig. 8. The sanitary shorts 1 in Fig. 8 have a front waist region 2, a back waist region 3, and a crotch region 4. However, unlike the sanitary shorts 1 in Fig. 3, the sanitary shorts 1 in Fig. 8 have a band-shaped elastic 51 that extends in the vertical direction C, coinciding with the center line P, attached in a stretched state to the inner surface of the back waist region 3 by a joining means such as sewing. A covering sheet 52, which is a sheet piece that covers the band-shaped elastic 51, is attached to the inner surface of the back waist region 3 at a joining line 53 by an appropriate joining means such as sewing. The covering sheet 52 is attached to the rear ... a suitable joining means such as sewing. The covering sheet 52 is attached to the first crotch region 4 (described later) that forms the crotch region 4. lower range 61 and his second partner lower range 62 at a joining line, for example, a seam line 17, and is attached at a seam line 56 to the strip-shaped cloth piece 8 forming the peripheral edge of the waist opening 5 (see FIG. 1).

[0041] The crotch region 4 of the sanitary shorts 1 in Fig. 8 has a first crotch region 61 that faces the clothing (not shown) of the wearer of the sanitary shorts 1 when the sanitary shorts 1 are worn, and a second crotch region 62 that overlaps the first crotch region 61 and faces the skin of the wearer of the sanitary shorts 1. The first crotch region 61 and the second crotch region 62 have front end portions 63, 64 extending in the lateral direction B attached to the front waist region 2 by a joining means such as a seam 16, and rear end portions 65, 66 extending in the lateral direction B attached to the rear waist region 3 by a joining means such as a seam 17. Both side edges 69 of the first crotch region 61 extending in the front-to-back direction A are curved convexly toward the center line P, and fit around the wearer's legs (not shown) from the inside of the crotch region when the sanitary shorts 1 are worn. Both side edges 68 of the second crotch region 62 extend parallel to the centerline P. The distance between the both side edges 68 is the width of the second crotch region 62, which preferably ranges from 60 to 115 mm, taking into account various sizes of sanitary shorts 1. The first crotch region 61 and the second crotch region 62 are spaced apart in the vertical direction C, i.e., their thickness direction, between their front ends 63, 64 and rear ends 65, 66. The first crotch region 61 and the second crotch region 62 are elastically stretchable at least in the vertical direction A of the front-to-back direction A and the lateral direction B. However, the modulus of elasticity at 10% stretch in the vertical direction A is designed to be higher in the second crotch region 62 than in the first crotch region 61. The elastic modulus is determined as the stress / strain at 10% elongation when a test piece, measuring 50 mm in the front-to-back direction A and 10 mm in the transverse direction B, taken from each of the first and second crotch regions 61, 62, is gripped in the chucks of a tensile tester at 10 mm from each end and pulled at a rate of 100 mm / min. When the sanitary shorts 1 are worn and the crotch region 4 is pulled in the front-to-back direction A along the wearer's body, the first crotch region 61 stretches together with the front and rear waist regions 2, 3 to cover the wearer's body under the action of elastic contractile force, while the second crotch region 62 acts to fit the napkin 100 worn together with the sanitary shorts 1 closely to the wearer's private parts while being pulled in the front-to-back direction A.The first crotch region 61, which has a larger dimension in the lateral direction B than the second crotch region 62, i.e., is wider, covers and conceals the second crotch region 62 and the napkin 100 attached thereto, particularly the wings 108 of the napkin 100, and at the same time acts to stop or absorb the flow of bodily fluids leaking from the second crotch region 62. Therefore, it is preferable that the first crotch region 61 has sweat-absorbent properties in addition to having liquid-absorbent properties for this purpose.

[0042] In the sanitary shorts 1 thus formed, markers for positioning the napkin 100 are formed on the inner surface of at least one of the covering sheet 52 in the rear waist region 3 and the second crotch region 62 in the crotch region 4, as illustrated in Fig. 3. The positioning markers on the covering sheet 52 are a central marker 30a and / or a pair of side markers 30b formed in the first region 31, which is a region coinciding with the center line P, and / or the second region 32, which is a region symmetrical with respect to the center line P. The positioning markers in the second crotch region 62 are a central marker 40a and / or a pair of side markers 40b formed in the first region 41, which is a region coinciding with the center line P, and / or the second region 42, which is a region symmetrical with respect to the center line P.

[0043] In the illustrated example, the central marker 30a and the side markers 30b formed on the covering sheet 52 of the rear waistband region 3 are each formed by individually independent patterns 71 such as stars and circles arranged at intervals in the up-down direction C (front-to-back direction A in FIG. 8), unlike the example in FIG. 4. The individual independent patterns 71 are arranged at intervals in the up-down direction C with patterns of different shapes, but adjacent patterns in the lateral direction B on the side markers 30b have the same pattern. Such patterns serve as scales (markers) that indicate the distance in the front-to-back direction A from the center line Q extending in the lateral direction B in FIG. 8.

[0044] The center marker 40a and the side markers 40b formed in the second crotch region 62 also differ from the example shown in Figure 5 in that each of the center markers 40a and the side markers 40b has a different, independent design 71 arranged at intervals in the front-to-back direction A, but adjacent side markers 40b in the lateral direction B have the same design 71. Similar to the design 71 formed on the covering sheet 52, these designs 71 serve as a measure of the distance from the lateral centerline Q in the front-to-back direction A. In the illustrated example, the spacing between the side markers 40b in the lateral direction B is wider than the spacing between the side markers 30b in the lateral direction B in the rear waist region 3. This difference in spacing takes into account the width dimensions of the napkin 100 and the covering sheet 52 used in the sanitary shorts 1. The napkin 100 has a wider width at the portion positioned in the second crotch region 62 and a narrower width at the portion positioned in the covering sheet 52. However, in the present invention, these spacings may be the same. The napkin 100 can also be used without changing its width.

[0045] FIG. 9 shows an example of the cross-sectional structure of the first and second crotch regions 61, 62. The illustrated second crotch region 62 has an inner layer 62a forming the inner surface of the second crotch region and an outer layer 62b forming the outer surface of the second crotch region, and these two layers 62a, 62b are joined together at both side edges extending in the front-to-back direction A by joining means such as sewing or welding. The inner layer 62a, which faces the skin of the wearer of the sanitary shorts, is made of a polyester fabric, for example, laminated with polyurethane and having water repellency or water impermeability, while the outer layer 62b, which faces the wearer's clothing (i.e., the outer layer 62b facing the first crotch region 61), is made of a power net that is elastically stretchable in the front-to-back direction A. The first crotch region 61 also has an inner layer 61a and an outer layer 61b. The inner layer 61a and outer layer 61b are joined together at both side edges extending parallel to each other in the front-to-back direction A by joining means such as sewing. The inner layer 61a facing the second crotch region 62 is made of a liquid-impermeable polyester woven fabric with a polyurethane laminate layer, which is elastically stretchable in the front-to-back direction A and the lateral direction B. The outer layer 62b, which faces the wearer's clothing (not shown) of the sanitary shorts 1, is made of the same elastic polyester woven fabric as the body fabric of the front and rear waist regions 2, 3. The first crotch region 61 is in a state where it can stretch more elastically in the front-to-back direction A than the second crotch region 62. In the present invention, the laminate structure and materials used in the first crotch region 61 and second crotch region 62 are not particularly limited and can take various forms. For example, the inner layer 62a of the second crotch region 62 can be made of a water-absorbent, sweat-absorbent, or moisture-absorbent polyester fabric, and the outer layer 62b can be made of a water-impermeable or water-repellent polyester fabric laminated with polyurethane, or more preferably, a water-permeable polyester fabric that also has water-absorbent properties, resulting in a second crotch region 62 that is soft to the touch, absorbent, and waterproof. The second crotch region 62 can also have a three-layer structure, with an absorbent layer made of absorbent fibers such as cotton interposed between the inner layer 62a and outer layer 62b. In sanitary shorts 1 with such a three-layer structure, even if bodily fluids leak from the napkin 100, the sanitary shorts 1 will absorb the bodily fluids and prevent them from soiling the body or other clothing.Furthermore, even if the sanitary shorts 1 are worn without the napkin 100 attached, the sanitary shorts 1 will not absorb the wearer's bodily fluids and will not soil the body or the like.

[0046] 10(a) and (b) are similar to FIG. 6 and show a part of the procedure for setting a winged napkin 100 on the sanitary shorts 1 of FIG. 8. However, in FIG. 10(b), the sanitary shorts 1 and the napkin 100 are shown in a top view. An example of the procedure for setting the napkin 100 in FIG. 10 is as follows. That is, preferably, first, for example, the palm of the left hand is inserted between the first crotch region 61 and the second crotch region 62, and the thumb is placed on the second crotch region 62 to pinch the napkin 100 together with the second crotch region 62 behind the folding line 105. The napkin 100 is, for example, placed at the base of the pair of wings 108. portion The line connecting the two fold lines 106 is the fold line 105, and the front end of the napkin 100 is minutes 101 is raised. The fold line 105 is superimposed on a suitable pattern on the center marker 30a formed in the second crotch region 62 or on a row of suitable patterns arranged side by side on a pair of side markers 30b, such as the row of star-shaped patterns shown in the figure. In the illustrated example, the circular pattern on the center marker 30a is added to the row of star-shaped patterns. Furthermore, a center line M dividing the width of the napkin 100 into two equal parts is determined by visual observation of the napkin 100, and the center line M is aligned with the row of center markers 30a. By setting the napkin 100 in this manner, the center line M of the napkin 100 and the center line P of the sanitary shorts 1 are aligned with each other at least in the second crotch region 62 of the sanitary shorts 1 via the center marker 30a. Furthermore, the folding line 105 extends perpendicular to the center line P of the sanitary shorts 1, and does not intersect at an angle as in the napkin 100 shown by the imaginary line. minutes 101 is folded down toward the front waist region 2 of the sanitary shorts 1, and furthermore, the rear end minutes102 is extended toward the rear waist region 3 of the sanitary shorts 1, and the center line M of the napkin 100 is aligned with the center mark 30a (see FIG. 8) formed on the cover sheet 52 of the sanitary shorts 1. minutes 102, more precisely, the rear end edge 104 (see FIG. 4) crosses each of the pair of side markers 30b in a manner symmetrical with respect to the center line P. In this manner, the napkin 100 can be attached in a manner that aligns its center line M with the center line P of the sanitary shorts 1.

[0047] FIG. 11 illustrates exemplary embodiments of center markers 30a, 40a and / or a pair of side markers 30b, 40b employed in at least one of the rear waist region 3, crotch region 4, and second crotch region 62 of sanitary shorts 1, with only portions of these markers shown. While the illustrated markers are each shown as two strips, only one of the two strips may be used to form the center markers 30a, 40a. The two strips of marker shown can also be used as center markers by arranging them close to each other across the center line P (see FIG. 10) so that the separation distance in the horizontal direction B of the sanitary shorts 1 is 5 mm or less, thereby functioning in the same manner as a single strip of marker. When the two strips of marker shown in FIG. 11 are used as a pair of side markers 30b, 40b spaced apart by an appropriate distance in the horizontal direction of the drawing, the separation distance should be at least 20 mm, preferably 30 to 80 mm. Note that FIG. 11 does not show the signs already shown in FIGS.

[0048] Figure 11(a) shows an example in which black circles of the same shape, size, and color are arranged at regular intervals in the vertical and horizontal directions. The vertical row of circles in the figure functions as a single or double pair of marks in the present invention, replacing the linear markings in Figure 3 and other figures, with each individual figure arranged in at least one of the front-to-back direction A and the vertical direction C. The individual circles in the row function as positional identification elements in the present invention. The illustrated circles can be replaced with figures of any suitable shape and color, such as a square, rectangle, or ellipse. The shape, size, color, and combinations of these individual figures within a row can also be varied. The vertical separation distance between adjacent circles, i.e., the distance between the figures, can also be varied in places. Furthermore, to make the figure stand out, it is preferable that the color of the figure have a color difference ΔE of 0.2 or more between the color of the surrounding area within 10 mm of the figure. ΔE is calculated using the coordinate L in the CIELAB color space of both the test piece containing the figure and the test piece containing the surrounding area. * ,a * ,b * In the present invention, each test piece was placed on a standard white plate manufactured by the Japan Color Research Institute, and the color difference ΔE of the test piece was measured using a color difference meter CR-300 (manufactured by Konica Minolta, Inc.).

[0049] In Figure 11(a), the line P represents the center line P of the sanitary shorts 1 (see Figure 10). The line D1 extending vertically connecting the black circles is the center line of the sign, extending by dividing the width of the sign, defined by two parallel tangent lines E1 and E2 to the black circles, into two equal parts, and is parallel to the center line P. In the horizontal direction of the figure, the distance (spacing) between the signs and the distance between the sign and the center line P are defined as the distance F1 between the lines D1 and the distance F2 between the line D1 and the center line P. When the distance between the signs in the horizontal direction is said to be at least 20 mm for each of the pair of side signs 30b, 40b according to the present invention, this distance refers to the distance (spacing) between the lines D1. Furthermore, when a two-line sign is said to function substantially in the same manner as a one-line sign, the distance between the signs means that the distance between the straight lines D1 is 5 mm or less.

[0050] Figure 11(b) shows a combination of a long line and short lines perpendicular to it. The short lines can be arranged with varying lengths, widths, and colors. Each short line can be distinguished by adding numbers (e.g., 1, 2, 3, etc.) or letters (e.g., a, b, c, etc.). Long lines extending vertically serve as center or side markers, while short lines extending horizontally serve as location identifiers. The long and short lines can be replaced with curves. Line E1 in the figure is a tangent to the tip of the short line extending horizontally (B), which serves as a location identifier. Line E2 is a tangent to the number 1, 2, 3, etc., both of which are parallel to the center line P. The illustrated distance F1 is the distance between markers facing each other across the center line P, i.e., the distance between lines D1.

[0051] Figure 11(c) shows an example of a marking with parallel black bands incorporating visible identification elements, such as hollow circles, to indicate a position on the line. Among the four vertically aligned circles, one has a larger diameter, allowing one of the aligned identification elements to be identified as being, for example, the center in the vertical direction. The bands serve as central or side markers, and the hollow circles serve as position identification elements. The spacing dimension F1 shown in the figure is the distance between the centers of the black bands forming a pair of marks or a mark that is considered essentially a single line, i.e., the spacing dimension between the straight lines D1.

[0052] Figure 11 (d) shows an example of a sign consisting of multiple parallel rows of letters, numbers, or other symbols. The two rows in the figure can be considered a pair of signs or essentially a single sign, depending on the distance F1 between them. Between the parallel rows, the same letters, numbers, or other symbols are arranged side by side, acting as positional identifiers and indicating the position in the front-to-back direction. Some characters can be made particularly large or have a large distance between them vertically, allowing users to know that the large characters are in the vertical center or in a special position.

[0053] Figure 11(e) shows an example of two rows of position identification elements of various shapes lined up side by side. By arranging individual position identification elements with unique shapes, sizes, colors, etc. within a row, their locations can be made conspicuous. In the illustrated example, the black half-moon-shaped position identification elements are such elements. Depending on the size of the separation distance F1 between the center lines D1 of each row, the two rows shown in the figure may be considered to be a pair of signs or may be considered to be essentially a single sign.

[0054] 12(a), (b), and (c) are a front view, a back view, and a development view similar to FIG. 2 of sanitary shorts 301 according to a second aspect of the present invention. The front view of the sanitary shorts 301 in FIG. 12(a) is similar to that of the sanitary shorts 1 in FIG. 1, and includes a front waist region 302, a rear waist region 303, and a crotch region 304. The sanitary shorts 301 have a waist opening 305 and a pair of leg openings 306. The edge of the waist opening 305 is formed by a hem-sewn strip of cloth 308. A stretchable elastic strip 309, which serves as a waist elastic member, is placed inside the strip of cloth 308. The front and rear waist regions 302, 303 are formed by joining a first body fabric 311 and a second body fabric 312 at a seam 314 in the front waist region 302. The crotch region 304 is joined to the front waist region 302 by a seam 316 and to the back waist region 303 by a seam 317. The cross-sectional structure of the crotch region 304 in the vertical direction C may have a cross-sectional structure including a first crotch region 61 and a second crotch region 62 as shown in FIG.

[0055] In FIG. 12(c), the inner surface of the rear waist region 303 is made of sanitary shorts. 301 The rear waist region 303 has an inner surface 310, and a belt-shaped auxiliary elastic member 351 is sewn to the inner surface 310 of the rear waist region 303 with a thread 351a in a stretched state along a center line P that bisects the rear waist region 303 in the transverse direction B. Band-shaped A covering sheet 352 is joined to the auxiliary elastic members 351 by means of sewing or the like. The covering sheet 352 is elastically stretchable at least in the direction of the center line P among the direction of the center line P and the direction perpendicular to that direction, and has a shape symmetrical about the center line P, with only the peripheral edge 352p sewn to the rear waistline region 303. Specifically, of the peripheral edge 352p, both side edges 356 that face each other in the lateral direction B and extend in the vertical direction C are joined to the rear waistline region 303 by sewing, a top edge 357 of the peripheral edge 352p is joined to the rear waistline region 303 together with a strip-shaped cloth piece 308 that defines the waistline opening 305, and a bottom edge 358 of the peripheral edge 352p is joined to the edge of the leg openings 306 and the rear end of the crotch region 304. The suture is317 to the rear waistline region 303. In a portion 352c that is inward of the thus-joined peripheral edge portion 352p, the covering sheet 352 is not joined to the rear waistline region 303, in other words, not joined to the second body fabric 312 that forms the rear waistline region 303, and is free to move without being restricted by the second body fabric 312.

[0056] Band-shaped The auxiliary elastic member 351 has a lower end 351b at the rear end of the crotch region 304. The suture is The rear end of the 317 overlapping The suture is It is stitched to 317. Band-shaped The auxiliary elastic member 351 is provided to support the sanitary shorts 301 in a natural state where no external force is applied. to At some point, it contracts in the vertical direction C, forming a virtual line The rear waist area indicated by 303 of The state shown is as follows: Band-shaped Gathers (not shown) are formed in the rear waist region 303 at the portions overlapping with the auxiliary elastic members 351. On the other hand, the covering sheet 352 is Band-shaped Even when the auxiliary elastic member 351 is contracted, gathers are not formed, and the sanitary shorts 301 The inner surface of the covering sheet 352 that faces the wearer's skin is smooth. A covering sheet 352 that can maintain such a smooth state can be obtained by using a fabric that is wrinkle-resistant, for example, by laminating an elastically stretchable polyester fabric with polyurethane.

[0057] In Figure 12(c), the napkin 100 shown by the imaginary line is releasably attached to the crotch region 304 of the sanitary shorts 301 and the covering sheet 352 by means of an adhesive applied to the back surface of the main body 100a and wings 108 of the napkin 100. In this state, the napkin 100 is fixed to the crotch region 304 and does not move relative to the sanitary shorts 301 when worn. On the other hand, in the case of the covering sheet 352, the napkin 100 adheres to the periphery of the covering sheet 352 via the adhesive applied to the back sheet. DepartmentThe second body fabric 312 is joined to a portion 352c that is more inward than the second body fabric 312 that forms the rear waistline region 303. The inner portion 352c is a portion that can move without being restricted by the second body fabric 312 that forms the rear waistline region 303. The inner portion 352c is also a portion that does not form gathers, so that the napkin 100 can be easily attached without being hindered by gathers.

[0058] FIG. 13 corresponds to a schematic cross-sectional view taken along the line XIII-XIII in FIG. 12(c), and shows the rear waistband region 303. No. 2 The auxiliary elastic member 311 sewn to the body fabric 312, the covering sheet 352, and the rear end of the napkin 100 releasably joined to the covering sheet 352. minutes 102 (see FIG. 6). However, the sanitary shorts 301 and the napkin 100 are shown in a worn state, and the auxiliary elastic members 311 are shown in a state in which they are accommodated in the buttocks cleft (not shown) of the wearer of the sanitary shorts 301. In the rear waist region 303 of the sanitary shorts 301, when the auxiliary elastic members 311 are in a stretched state, the auxiliary elastic members 311 of the rear waist region 303 No. 2 The body fabric 312 and the covering sheet 352 are in a tensioned state, approaching each other via the auxiliary elastic members 311, and are overlapped as shown by the solid lines. No. 2 The body fabric 312 shrinks while gathering, but the covering sheet 352 does not shrink or gather, and sags relative to the rear waist region 303 as shown by the imaginary line. No. 2 The napkin 100 is in a state where it can move without being restricted by the body fabric 312. When worn, the napkin 100 may be in a state where it sticks to the wearer's skin due to sweat or bodily fluids that wet the wearer's skin. 301In addition, when the wearer's body moves, for example, when the buttocks move, the napkin 100 moves along with the loose covering sheet 352, and as a result, the napkin 100 can maintain proper contact with the required parts of the wearer's body, thereby preventing leakage of bodily fluids. Furthermore, when the cross-sectional structure of Fig. 9 is employed for the crotch region 304, if the inner layer 62a of the second crotch region 62 in that cross-sectional structure is made of a water-absorbent, sweat-absorbent, or moisture-absorbent material such as polyester, it would be possible to wear sanitary shorts without using the napkin 100. 301 Even when the garment is worn alone, the second crotch region 62 fits closely to the private parts, gluteal cleft, and surrounding areas, reliably absorbing bodily fluids and preventing discomfort caused by bodily fluids. Furthermore, the sheet material used in the crotch region 304 and the covering sheet 352 in the rear waistband region 303 may be made of a liquid-absorbent, moisture-absorbent, or sweat-absorbent woven fabric. The sheet material may also be liquid-impermeable or moisture-impermeable. For example, the sheet material used in the crotch region 304 may include a sheet material that is both liquid-impermeable and sweat-absorbent.

[0059] 3 and 8, the sanitary shorts 301 illustrated in Fig. 12 may have a mark such as a central mark that serves as a positioning means when attaching the napkin 100, or an identification element for the attachment position. Since the covering sheet 352 in the sanitary shorts 301 does not have gathers, the mark or identification element formed on the covering sheet 352 does not become distorted or difficult to see, making it easy to position the napkin 100. [Explanation of symbols]

[0060] 1 sanitary shorts 2 Front waist area 3. Rear waist area 4 Inseam area 5. Waist opening 6 Leg circumference opening 10. Inner Surface 11 First body fabric 30a Central part sign (sign) 30b Side signs (signs) 31 Part 1 31a Location Identification Element (Identification Element) 31b Location Identification Element (Identification Element) 32 Part 2 40a Central part sign (sign) 40b Side signs (signs) 41 Part 1 41a Gap part (identification element) 41b Gap part (identification element) 42 Part 2 52 Sheet piece (covering sheet) 61 1st inseam area 62 2nd inseam area 63 before End 64 before End 65 rear End 66 rear End 68 side End 69 side End 100 napkins 105 folding line 301 Sanitary Shorts 305 Waist opening 306 Leg opening 310 Interior 302 Front waist area 303 Rear waist area 304 Inseam area 351 Band auxiliary Elastic member 352 Covering Sheet 352p Periphery

Claims

1. Sanitary shorts having front-to-back directions, lateral directions, and up-to-down directions which are perpendicular to each other, and having a front waist region, a rear waist region, and a crotch region, the front and rear waist regions forming a waist opening, and the front and rear waist regions and the crotch region forming a pair of leg openings, which can be worn together with a bodily fluid absorbent article, The sanitary shorts have an inner surface facing the skin of the wearer of the sanitary shorts and an outer surface facing the wearer's clothing, and the inner surfaces of the rear waistband region and the crotch region include a first portion extending along a center line that bisects the lateral dimension of the sanitary shorts, and second portions on both sides of the center line that are symmetrical about the center line, and the positioning means in the lateral direction for the body fluid absorbent article attached to the inner surface so as to extend along the center line is formed as at least one of a single mark for the first portion and a pair of two marks for the second portion, and the at least one mark includes a position identification element that can identify the position in the direction of extension of the center line and serves as positioning means in either the front-to-back direction or the up-to-down direction for the body fluid absorbent article, When at least one of the single mark and the pair of two marks is the single mark, in the rear waist region, the single mark is a central mark that is continuous in the front-to-rear direction, When at least one of the single mark and the pair of two marks is the pair of two marks, in the rear waist region, the pair of two marks are side marks that are continuous in the front-to-rear direction, In the crotch region, when at least one of the single marker and the pair of two markers is the single marker, the single marker extends in the front-to-rear direction in a manner different from that of the central marker in the rear waistline region, In the crotch region, when at least one of the one marker and the two pair of markers is the two pair of markers, the two pair of markers extend in the front-to-rear direction in a manner different from that of the side markers in the rear waistline region, When at least one of the single marker and the pair of two markers is the single marker, a position identification element that intersects with the central marker is formed in the rear waistband region so as to extend in the lateral direction relative to the single marker, When at least one of the one mark and the pair of two marks is the pair of two marks, a position identification element that intersects with the side marks is formed in the rear waist region so as to extend in the lateral direction relative to the pair of two marks, When at least one of the single marker and the pair of two markers is the single marker, no position identification element that intersects with the central marker is formed on the single marker in the crotch region, Sanitary shorts characterized in that when at least one of the single mark and the pair of two marks is a pair of marks, no position identification element that intersects with the side marks is formed in the crotch region for the pair of marks.

2. 2. The sanitary shorts according to claim 1, wherein the pair of markers in the rear waistband region are formed solely by the side markers and the position identifying elements.

3. The sanitary shorts according to claim 1, wherein the plurality of position identification elements are either a combination of position identification elements having the same shape, size and color, or a combination of position identification elements having different shapes, sizes and colors at least in one respect.

4. Sanitary shorts as described in claim 3, wherein, among the multiple position identification elements arranged in at least one of the front-to-back direction and the up-to-down direction, at least one of the position identification elements has a larger dimension and the same shape as the other position identification elements in at least one of the front-to-back direction, the lateral direction and the up-to-down direction, or has a different shape from the other position identification elements.

5. The crotch region has a first crotch region and a second crotch region that overlap each other in the up-down direction and extend in the front-to-back direction, the first crotch region being located below the second crotch region, and a first front end portion and a first rear end portion that are located at both ends in the front-to-back direction and extend in the transverse direction are connected to the front waist region and the rear waist region, respectively, via a joining line, the second crotch region having a second inner surface facing the wearer's skin and a second outer surface facing the first crotch region, and the transverse dimension is equal to or larger than the front of the first crotch region.

5. The sanitary shorts according to claim 1, wherein the sanitary shorts are made smaller than the horizontal dimension, and wherein second front and second rear end portions at both ends in the front-to-rear direction and extending in the horizontal direction are connected to the front waist region and the rear waist region, respectively, via the joining lines, and the portion between the second front end portion and the second rear end portion is separable from the first crotch region in the vertical direction, and at least one of the single marking and the pair of two marks is formed on the second inner surface of the second crotch region.

6. 6. The sanitary shorts according to claim 5, wherein the first crotch region has first side edges located on both sides in the lateral direction that extend in the front-to-rear direction in a concave curve, while the second crotch region has second side edges located on both sides in the lateral direction that extend in the front-to-rear direction in a straight line.

7. 7. The sanitary shorts according to claim 6, wherein the distance between said second side edges in the lateral direction is the width of said second crotch region, and said width is in the range of 60-115 mm.

8. Sanitary shorts as described in any one of claims 1 to 7, wherein a sheet piece having a shape symmetrical with respect to the center line is attached to the inner surface of the rear waist region, and at least one of the single marking and the pair of two marks is formed on the inner surface of the sheet piece facing the wearer's skin.

9. The sanitary shorts have a band-shaped elastic member that overlaps the center line and extends in the vertical direction and is sewn in a stretched state to the inner surface of the rear waist region, and the rear waist region is contractible in the vertical direction as the center line is integrated with the band-shaped elastic member, a covering sheet covering the band-shaped elastic members and extending in the vertical direction and the horizontal direction is sewn to the rear waistline region at a peripheral portion of the covering sheet on the inner surface of the rear waistline region; sanitary shorts according to claim 1, wherein when the band-shaped elastic member contracts, the rear waist region contracts in the vertical direction while generating numerous gathers at the center line portion, while the covering sheet is in a state where the portion inside the sewn peripheral edge portion is free to move without being restrained by the portion of the rear waist region opposite said portion, and even if gathers are generated in the rear waist region, no gathers are generated in the inner portion.

10. 10. The sanitary shorts according to claim 9, wherein the cover sheet can be releasably bonded to the body fluid absorbent article.

11. a rear end edge in the front-to-rear direction of the central marker constituting the single marker in the crotch region and a front end edge in the front-to-rear direction of the central marker constituting the single marker in the rear waistline region are arranged with a gap therebetween, 2. The sanitary shorts according to claim 1, wherein the rear end edges in the front-to-back direction of the side markers constituting the pair of markers in the crotch region and the front end edges in the front-to-back direction of the side markers constituting the pair of markers in the rear waist region are spaced apart in the front-to-back direction.

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