JP5996511B2 - Pants-type wearing items - Google Patents

Description

  The present invention relates to a pants-type disposable wearing article, and more specifically, an elastic region is formed at the edge of the leg opening, and is used as a pants-type disposable diaper, disposable toilet training pants, disposable incontinence pants, etc. It is related with the disposable pants-type wearing article suitable for.

  Conventionally, disposable pants-type wearing articles in which a leg elastic region is formed at the peripheral edge of the leg opening are known. For example, Patent Document 1 includes an absorber that extends from the crotch region to the front and rear waist regions, and a pair of side flaps that are positioned outside both side edges of the absorber, and the side flaps have leg openings. A pants-type wearing article in which a leg elastic region is formed along the peripheral edge is disclosed.

International Publication No. 2006/017718

  According to the wearing article disclosed in Patent Document 1, the leg elastic region is formed in the side flap, so that the peripheral edge of the leg opening fits the wearer's thigh and prevents the side leakage of excrement. be able to.

  In such a wearing article, when the wearer wears it, if the waist opening of the wearing article is widened, the elastic region of the side flaps stands up toward the inside of the leg opening at the bottom of the crotch region. Become. If the leg of the wearer is passed through the leg opening in this state, the peripheral edge of the leg opening in the side flap may be worn in a state of being bent inside the wearing article. In particular, when the side flaps are bent inside the wearing article at the inner edge of the leg elastic region, the leg elastic region does not function properly. There is a risk of side leakage.

  It is an object of the present invention to improve the conventional technology, and prevents a side flap from being bent at an inner edge of a leg elastic region when wearing a wearing article, and facilitates that a side flap is in a bent state. The present invention provides a disposable pants-type wearing article that can be found in

  In order to achieve the above object, the present invention is directed to a longitudinal direction and a lateral direction perpendicular thereto, a skin facing surface and a non-skin facing surface that is the opposite surface, and defining a front waist region. A front waist panel, a rear waist panel that defines a rear waist region, and a crotch panel that defines a crotch region, wherein the skin facing surface of the absorbent body is covered with a liquid-permeable surface sheet Including a liquid absorbing structure and a pair of side flaps located on both sides of the absorbent body in the lateral direction and extending to the front and rear waist regions, and both side portions of the front and rear waist panels are joined to each other, the crotch panel Each of the front and rear end portions is joined to the skin facing surface of each of the front and rear waist panels, whereby a waist opening and a pair of leg openings are defined. Is the use goods.

  The present invention provides the above-mentioned wearing article, wherein the side flap forms a part of the periphery of the leg opening and has a leg elastic region extending along the periphery, and from the front waist region to the rear waist region. The leg elastic region has an inner edge and an outer edge that are defined by a leg elastic body included in the leg display area and are opposed to each other in the lateral direction, and the symbol display section has the lateral direction. And at least inside the inner edge and extending along the inner edge, and with respect to at least one waist panel of the front and rear waist panels, the side flap is at least the crotch panel The center in the lateral direction and the inner edge of the leg elastic region are joined.

  According to one or more embodiments of the pant-type wearing article according to the present invention, in at least one waist panel of the front and rear waist regions, the side flap is between the center of the crotch panel and the inner edge of the leg elastic region. Since it is joined to the waist panel, the side flaps can be prevented from being bent so as to enter the inside of the wearing article at the inner edge of the leg elastic region. Further, the side flap is formed with a symbol display portion extending from the front waist region to the rear waist region, and the symbol display portion is formed so as to extend along the inner edge of the leg elastic region. Is in a state of being bent inside the wearing article at the inner edge of the leg elastic region, the mother or the wearer can easily find the bent side flap by the state in which the symbol display portion extends. By the discovery, the state of the side flap can be promptly corrected for the mother or the like.

The drawings illustrate specific embodiments of the invention and include selective and preferred embodiments as well as the essential features of the invention.
The perspective view of the underpants type disposable diaper in a 1st embodiment shown as an example of the underpants type wearing article concerning the present invention. The expansion | deployment figure of the diaper which extended the vertical direction and the horizontal direction to such an extent that the gathers by the contraction effect | action of an elastic member are eliminated by cancel | disconnecting the front and back waist panels. FIG. 3 is a partially exploded exploded view of the diaper of FIG. 2. It is a figure similar to FIG. 2, Comprising: The figure for demonstrating a junction part. The typical sectional view which meets the VV line of Drawing 2. The typical sectional view of the lowest part of the crotch area in the diaper of FIG. (A) The front view of the diaper in a wearing condition. (B) The rear view of the diaper in a wearing condition. (A) The figure similar to Fig.6 (a) in case the side flap bends. (B) The same figure as FIG.6 (b) in case the side flap bends. The figure which shows an example of the wearing operation | movement of the infant who is a wearer by (a), (b). The expanded view similar to FIG. 2 in 2nd Embodiment. The expanded view similar to FIG. 2 in 3rd Embodiment.

  The following embodiment relates to a pants-type wearing article shown in FIGS. 1 to 11 and includes not only an indispensable structure of the invention but also a selective and preferable structure.

<First Embodiment>
FIG. 1 shows a disposable pant-type diaper 10 which is an example of a pant-type wearing article according to the present invention. 1-3, the diaper 10 includes a vertical axis P and a horizontal axis Q orthogonal to each other, a vertical direction Y parallel to the vertical axis P, a horizontal direction X parallel to the horizontal axis Q, and a skin facing surface (see FIG. 2) and a non-skin facing surface which is the opposite surface, an annular waist panel 12 (see FIG. 1), and a crotch panel 13 attached to the skin facing surface of the waist panel 12. The crotch panel 13 includes the liquid absorbing structure 11 connected to the skin facing surface of the waist panel 12 and having an absorbent body 58. The diaper 10 has a front waist region 14, a rear waist region 15, and a crotch region 16 positioned between the front and rear waist regions 14 and 15, and is symmetric about the vertical axis P. That is, the vertical axis P is a center line that bisects the dimension of the diaper 10 in the horizontal direction X. The horizontal axis Q is a center line that bisects the dimension in the vertical direction Y of the diaper 10 in FIG.

<Waist panel>
The waist panel 12 has an elastic belt function for fixing the liquid absorbing structure 11 between the inseam of the wearer, and includes a front waist panel 18 that defines the front waist region 14 and a rear waist that defines the rear waist region 15. And a panel 19. In FIG. 2, the front waist panel 18 has a horizontal rectangular shape defined by a lower end edge 18a, an upper end edge 18b, and both side edges 18c, 18d extending between both end edges 18a, 18b. The rear waist panel 19 has a horizontal rectangular shape defined by a lower end edge 19a, an upper end edge 19b, and both side edges 19c and 19d extending between both end edges 19a and 19b. Each of the side edges 18c, 18d of the front waist panel 18 and the side edges 19c, 19d of the rear waist panel 19 in FIG. 2 are overlapped with each other and are known in the seam portion 20 that is intermittently aligned in the longitudinal direction Y. For example, the waist openings 22 in FIG. 1 are defined by being connected by heat welding means such as hot embossing and sonic processing. The front and rear waist regions 14 and 15 are formed by connecting the front and rear waist panels 18 and 19 with both side edges by the seam portion 20. In the front and rear waist panels 18 and 19, leg opening edge portions 18e and 19e, which are portions along the lower end edges 18a and 19a forming a part of the periphery of the leg opening 23, can be visually identified from the symbol display portion 61 described later. Formed as follows. In the present embodiment, a symbol display portion 61 with a symbol is formed on the side flap 43 of the crotch panel 13, and the same symbol as the symbol of the symbol display portion 61 is not displayed on the leg opening edge portions 18e and 19e. Each can be identified. In the present embodiment, the lower end edges 18 a and 19 a are located at the lower end of the connecting portion formed by the seam portion 20.

  Referring to FIG. 3, the front and rear waist panels 18 and 19 respectively have waist inner layers 24 and 25 located on the skin facing surface side and waist outer layers 26 and 27 located on the non-skin facing surface side. The waist outer layers 26 and 27 have a width dimension in the longitudinal direction Y larger than that of the waist inner layers 24 and 25 and are folded at the waist opening edge. A part of the waist inner layers 24 and 25 is located between the folded outer waist layers 26 and 27.

<Waist inner layer and waist outer layer>
The waist inner 24, 25 and waist outer 26 and 27 weight about 15 to 30 g / ^{m 2} of SMS (spunbond meltblown spunbond) nonwoven fabric, spunbonded nonwoven fabric, air-through nonwoven fabric, plastic film, or the one A laminate sheet of a fiber nonwoven fabric and a plastic film can be used. The waist inner layer 24 and the waist outer layer 26, and the waist inner layer 25 and the waist outer layer 27 are joined together by a hot melt adhesive or a known heat welding means. Moreover, you may use an elastic fiber nonwoven fabric for the waist inner layers 24 and 25. FIG.

<Graphic display film>
Referring to FIGS. 2 and 3, between the waist inner layer 24 and the waist outer layer 26, and between the waist inner layer 25 and the waist outer layer 27, from the non-skin facing surface in the central portion in the lateral direction X of the front and rear waist regions 14 and 15. Plastic films 28 and 29 on which a transparent graphic design (not shown) and the like are printed are arranged. The graphic design can be obtained by various shapes of symbols and combinations of symbols. There are regular and irregular designs. An example of a fixed pattern is a dot or a stripe. Achromatic colors and chromatic colors can be used around the symbols. In addition, brightness, saturation, and hue can be changed.

<Each elastic region>
The front and rear waist panels 18 and 19 are formed with waist elastic regions that can be expanded and contracted in the lateral direction X. The waist elastic regions include upper elastic regions 34a and 35a obtained by equally dividing the space between the upper end edges 18b and 19b and the lower end edges 18a and 19a of the respective waist panels 18 and 19 in the longitudinal direction Y, and an intermediate elastic region. 34b, 35b and lower elastic regions 34c, 35c. The upper elastic regions 34a and 35a, the intermediate regions 34b and 35ba, and the lower elastic regions 34c and 35c have first, second, and third waist elastic bodies 31a, 32a, and 31b extending in the lateral direction X, respectively. , 32b, 31c, 31d are arranged.

  The first waist elastic bodies 31a, 32a are provided with a hot-melt adhesive between the folded portions 26a, 27a of the waist outer layers 26, 27 and a portion of the waist outer layers 26, 27 positioned opposite to the waist opening edges. The second and third waist elastic bodies 31b, 32b, 31c, 32c are attached between the waist inner layers 24, 25 and the waist outer layers 26, 27 via a hot melt adhesive. The first, second, and third waist elastic bodies 31a, 32a, 31b, 32b, 31c, and 31d can be formed from a string-like or strand-like elastic material.

  The first waist elastic bodies 31a and 32a have a length of about 1.8 to 2.8 times (the length of the elastic body having a fineness of about 310 to 780 dtex contracted from a length in a natural state). The second waist elastic bodies 31b and 32b have a length of about 1.6 to 3.8 times from the contracted state of the elastic body having a fineness of about 470 to 940 dtex. For the third waist elastic bodies 31c and 32c, the elastic body having a fineness of about 310 to 620 dtex is contracted to a length of about 1.1 to 3.8 times. An elongated one can be used.

  The third waist elastic bodies 31c and 32c may be used in such a manner that the absorbent body 58 is not contracted. For example, as shown in FIGS. 2 and 3, it extends from both side edges 18 c, 18 d, 19 c, 19 d of the front and rear waist panels 18, 19 to both side edges of the absorber 58 so as not to cross the absorber 58. Used in the embodiment. Further, when the third waist elastic bodies 31c, 32c cross the absorbent body 58, the expansion ratio in the portion overlapping the absorbent body 58 is lowered, for example, 1.4 times or less, and used. In the portions from the side edges 18c, 18d, 19c, 19d to the side edges of the absorbent body 58, the expansion ratio may be increased to be used with a value exceeding 1.4 times, for example. The absorber 58 is sandwiched between the legs of the wearer when the diaper 10 is worn and is deformed so that the lateral width is narrow. By using the third waist elastic bodies 31c and 32c in this manner with respect to the absorber 58, the absorber 58 is deformed. The extent to which the absorber 58 is deformed can be reduced. However, in this invention, the 3rd waist elastic regions 31c and 32c can also be used as what has the effect | action which contracts the absorber 58. FIG.

  In the rear waist region 15, the third waist elastic body 32 c has smaller fineness and expansion ratio than the first and second waist elastic bodies 32 a and 32 b, and the extension force of the lower elastic region 35 c is It is lower than the elastic regions 35a and 35b. In the example of illustration, about the part which does not overlap with the absorber 58 among each elastic region, the specimen of the length of 3-5 mm of the horizontal direction X is cut out from the part, and it is made into the specimen in a natural state. A pair of marked lines with a separation dimension of 2 cm in the lateral direction X is entered, and the extension force of each specimen when the separation dimension is expanded to 1.7 times is obtained and compared. In the preferred diaper 10, the upper elastic region 35a has a specimen of about 0.7 to 1.7N, the intermediate elastic region 35b has a specimen of 0.4 to 1.4N, and the lower elastic region 35c has a specimen of about 0.00. 2 to 1.2 N, and the interrelationship of the extension force of each elastic region is upper elastic region 35a ≧ intermediate elastic region 35b> lower elastic region 35c. In addition, it is preferable that the mutual relationship of the extension force of each elastic region in the front waist region 14 is the intermediate elastic region 34b ≧ the upper elastic region 34a> the lower elastic region 34c. In addition, when the dimension of the longitudinal direction Y which is the width | variety of a test piece is not constant between each test piece, with the extensional stress when converting the extension force about each test piece into the value in case a width | variety is 30 mm. Compare each specimen. In order to measure the extension force, for example, an INSTRON Model 5564 or equivalent is used as a tensile tester, and the tensile speed is set to 100 mm / min.

  The mutual relationship between the above-described stretching forces is, for example, that the waist elastic bodies 31 and 32 are made of the same material and are spaced apart at equal intervals in the longitudinal direction Y, and only the fineness (dtex) is the first waist elastic bodies 31a and 32a. The second waist elastic bodies 31b and 32b can be obtained by making a difference between the third waist elastic bodies 31c and 32c. It can also be obtained by using waist elastic bodies 31 and 32 made of the same material and having the same fineness and making a difference in the separation distance between the elastic bodies in each elastic region. In addition, the material of each waist elastic body 31 and 32, a fineness, and a separation distance can be suitably set so that it may become the correlation mentioned above.

<Crotch panel>
The crotch panel 13 has front and rear end portions 46 and 47 that overlap with the front and rear waist panels 18 and 19, and an intermediate portion 48 that is located between the front and rear end portions 46 and 47 and forms a crotch region 16. The exterior sheet | seat 65 formed with the property nonwoven fabric, the liquid absorption structure 11, and a pair of side flap 43 are included. As the exterior sheet 65, a nonwoven fabric and a plastic film can be used in addition to the nonwoven fabric. The liquid absorbing structure 11 is disposed on the skin facing surface side of the exterior sheet 65, and the pair of side flaps 43 are disposed on the outer side in the lateral direction of the liquid absorbing structure 11.

  Referring to FIG. 4, the front and rear end portions 46, 47 of the crotch panel 13 are skin facing surfaces of the front and rear waist panels 18, 19 via a hot melt adhesive (not shown) applied to the non-skin facing surface side. On the other hand, it is fixed along the lower edge 18a, 19b. The joining area 41 may be formed by a known joining means other than the hot melt adhesive. The hot melt adhesive application area 41 forms a strip-shaped line having a predetermined width, and a plurality of first joint portions 41a extending in parallel to each other in the lateral direction X, and a vertical direction Y while drawing a spiral line. And a plurality of second joint portions 41b extending in the direction. The width dimension of the 1st junction part 41a is formed larger than the width dimension of the spiral line which forms the 2nd junction part 41b. The first and second bonding areas 41a and 41b are not limited to the vertical direction Y and the horizontal direction X, and need only extend in different directions. The first bonding area 41a is formed in a spiral shape, and the second bonding area 41b. May be formed linearly. By forming the joining area 41 with the first and second joining areas 41a and 41b extending in two different directions, particularly in the longitudinal direction Y and the transverse direction X, the longitudinal area between the front and rear waist panels 18 and 19 and the crotch panel 13 is vertical. The durability against an external force acting in the direction Y and the lateral direction X is improved, and the side flap 43 can be prevented from falling into the inner side of the lateral direction X.

<Liquid absorption structure>
The liquid absorbing structure 11 (see FIG. 3) has a vertically long pad shape, includes front and rear end portions 54 and 55, and an intermediate portion 56, and at least in the longitudinal direction Y in the crotch region 16, that is, the front and rear waist panels. 18 and 19, an absorbent body 58, a liquid-permeable surface sheet 59 covering the skin-facing surface side of the absorbent body 58, and a liquid-impervious property located on the non-skin-facing surface side of the absorbent body 58 An air-impermeable and liquid-impermeable back sheet 60. The front and rear end portions 54 and 55 are respectively fixed to the skin facing surfaces of the front and rear waist panels 18 and 19 via a hot melt adhesive (not shown), and the intermediate portion 56 is a hot melt adhesive (not shown). ) To the skin facing surface of the side sheet 44 forming the side flap 43. The front end portion 54 of the liquid absorbing structure 11 is fixed to the skin facing surface of the waist inner layer 24 of the front waist panel 18, and the rear end portion 55 is fixed to the skin facing surface of the waist inner layer 25 of the rear waist panel 19.

The absorbent body 58 has a mass per unit area of about 300 to 900 g / m ² and was formed from a mixture of fluff pulp, superabsorbent polymer particles (SAP), and optionally included heat-bondable staple fibers. It is formed by coating the core material with a liquid-permeable wrapping sheet, for example, a liquid-permeable fiber nonwoven fabric. Various known fiber nonwoven fabrics such as a liquid-permeable spunbond nonwoven fabric and SMS nonwoven fabric having a mass per unit area of about 10 to 30 g / m ² can be used for the surface sheet 59. For the back sheet 60, a liquid-impervious plastic film, a liquid-impervious fiber nonwoven fabric, a laminate sheet of a fiber nonwoven fabric and a plastic film, or the like can be used.

<Diameter dimensions>
In the example of the diaper 10 in FIG. 2, the dimension L1 in the longitudinal direction Y is about 350 to 600 mm, the dimension W1 in the transverse direction X of the diaper 10 is about 300 to 430 mm, and the dimension L2 in the longitudinal direction Y of the crotch region 16 is about 180 to. The dimension L3 in the longitudinal direction Y of the side edge 18d of the front waist region 14 (same as the dimension in the longitudinal direction Y of the side edge 19d of the rear waist region 15) L3 is about 160 to 180 mm.

<Side flap>
Referring to FIGS. 5 and 6, the pair of side flaps 43 extends outward in the lateral direction X from both side edges of the liquid absorbing structure 11. 5 and 6, only one of the pair of side flaps 43 is illustrated, but the other side flap 43 naturally has the same configuration. 2 and 4, the side flap 43 includes a front end portion 91, a rear end portion 92, and an intermediate portion 93 positioned between the front and rear end portions 91 and 92, and the side seat 44. It includes a plurality of string-like or strand-like leg elastic bodies 45 and a plastic film 60 having a symbol display portion 61 on which a symbol (not shown) is drawn. The front and rear end portions 91 and 92 are fixed to the skin facing surfaces of the leg opening edge portions 18e and 19e along the lower end edges 18a and 19b of the front and rear waist panels 18 and 19 via the joint region 41. The side seat 44 defines the outer shape of the side flap 43, has a vertical rectangular shape extending from the crotch region 16 to the front and rear waist regions 14, 15, and is folded back at a bent portion 44 a located outside the lateral direction X. . As is clear from FIG. 5, the bent portion 44 a is also the outer edge of the side flap 43. The leg elastic body 45 and the film 60 are located between the folded side sheets 44, and the symbol display portion 61 extends from the crotch region 16 to the front and rear waist regions 14 and 15 (see FIG. 2). In the side flap 43, a portion where the leg elastic body 45 exists is a leg elastic region 42. In the lateral direction X of the side flap 43, the leg elastic body 45 located closest to the center line P (see FIG. 2) is the innermost leg elastic body 45a, and the leg elastic body 45 located farthest from the center line P. Is the outermost leg elastic body 45b.

<Leg elastic body>
In the leg elastic region 42, the leg elastic body 45 is attached to the side seat 44 in an extended state in parallel with the outer edge 44 a of the side flap 43. In the present embodiment, an elastic yarn having a fineness of 250 to 500 dtex is attached as the leg elastic body 45 in an extended state by 1.8 to 3 times. Conventionally, there are many examples in which an elastic yarn of 470 dtex or more, for example, an elastic yarn of 620 dtex or 780 dtex, is used as the leg elastic body, but when an elastic yarn having a fineness smaller than these is used at a similar expansion ratio, 1 so that the leg elastic region 42 of the side flap 43 located in the lowermost portion 16a extends horizontally in the lateral direction X at the lowermost portion 16a in the longitudinal direction Y of the crotch region 16 that is curved in a U shape as shown in FIG. Alternatively, it is possible to obtain a peculiar state of extending in a nearly horizontal state (see FIG. 6). As the leg elastic body 45, it is preferable to use a single-string or multiple-string elastic body, but a band-shaped elastic body can also be used. A band-shaped elastic body and a string-shaped elastic body can also be used in combination. When a strip-shaped elastic body is used as the leg elastic body 45, the innermost edge and the outermost edge of the band-shaped leg elastic body 45 become the inner edge 42a and the outer edge 42b of the leg elastic region 42, respectively.
The reciprocal relationship between the leg elastic region 42 and the upper elastic regions 34a, 35a and the intermediate elastic regions 34b, 35b of the front and rear waist panels 18, 19 is as follows: upper elastic region 34a, 35a> leg elastic region 42, intermediate elastic region 34b, 35b> Leg elastic region 42 is preferable. If there is such a mutual relationship, the side flap 43 is fitted to the diaper 10 together with the legs inserted into the leg opening 23 while fitting the wearer's waist and waist so that the diaper 10 in the worn state does not slide down. It becomes easy to turn to the outside. That is, the side flap 43 can be prevented from being bent toward the inside of the diaper 10.
In order to compare the extension force of each elastic region 34a, 34b, 34c, 35a, 35b, 35c, 42, the front and rear waists of the upper elastic region 34a, 35b, the intermediate elastic region 34b, 35b, and the lower elastic region 34c, 5c It is obtained in the same manner as when the extension force of the areas 14 and 15 is obtained. For the side flap 43, a specimen including all the elastic bodies 45 in the width direction and having a length dimension of 3 to 5 cm is cut out, and the specimen is subjected to a tensile test similar to the upper elastic region 35b, for example. Thus, the extension force when the distance between the marked lines having a separation dimension of 2 cm is 1.7 times is obtained and compared with each extension force in the front and rear waist regions 14 and 15.

Further, when the front and rear waist regions 14 and 15 are viewed in plan, the leg elastic body 45 includes a plurality of third waist elastic bodies 31c and 32c in a portion where the crotch panel 18 and the front and rear waist regions 14 and 15 overlap. Among these, it exists in the state which cross | intersected the 3rd waist elastic bodies 31c and 32c of at least one line. The leg elastic region 42 formed by the leg elastic body 45 and the lower elastic regions 34c and 35c formed by the third waist elastic bodies 31c and 32c are respectively expanded to the same expansion ratio when the lower elastic regions 34c and 35c are respectively expanded. Is configured to be larger than the extension force of the leg elastic region 42. Moreover, in the more preferable diaper 10, the lowermost elastic regions 34c and 35c of the front and rear waist panels 18 and 19 intersecting with the innermost leg elastic body 45a forming the inner edge 42a of the leg elastic region 42 are provided. The stretching force of the waist panel elastic bodies 31c and 32c is larger than the stretching force of the leg elastic body 45a. The elastic members 31c, 32c, and 45a are stretched by cutting the elastic members 31c, 32c, and 45a together with the nonwoven fabric sandwiched between them to make a specimen and measuring the elastic force of the leg elastic region 42. What is necessary is just to measure extension force on the same conditions as the time conditions.
The side flaps 43 that have such a contraction relationship and overlap the front and rear waist regions 14 and 15 can easily maintain a nearly horizontal state in the lowermost portion 16a when the diaper 10 is in a natural state as shown in FIG. Therefore, when the diaper is worn, the side flap 43 can be prevented from being bent toward the inside of the diaper 10.

<Film>
The film 60 is made of a plastic material and has a symbol display portion 61 on which a symbol is drawn on the non-skin facing surface side. In the film 60 of this embodiment, the symbol display part 61 is formed by printing a symbol on the entire surface of the non-skin facing surface. The design referred to in the present invention includes a pattern drawn on the nonwoven fabric 44 forming the film 60 and the side flap 43, a figure such as a picture, a character, a symbol, a colored region, and the like, and a combination thereof. The design can be achromatic or chromatic. There are no restrictions on the brightness, saturation, and hue used in the design. In the symbol display unit 61, the symbols may be formed continuously or intermittently. For example, as shown in FIG. 2, it may be an aggregate of a plurality of dots. However, the symbol display part 61 must extend from the front waist panel 18 to the rear waist panel 19. In addition, in the lateral direction X of the side flap 43, the symbol display portion 61 should be formed at least inside the inner edge 42 a of the leg elastic region 42 and be visible from the non-skin facing surface side of the side flap 43. In other words, in the lateral direction X, the symbol display unit 61 may be only inside the inner edge 42 of the leg elastic region 42, or may be formed so as to straddle the inner edge 42, or the side flap 43. May extend to the bent portion 44a which is the outer edge of the. The symbol display unit 61 also has an inner edge 61a and an outer edge 61b (see FIG. 5). The outer edge 61 b is formed to be parallel to the inner edge 42 a of the leg elastic region 42. In the present embodiment, the inner edge 61 a of the symbol display unit 61 is located between the liquid absorbing structure 11 and the inner edge 42 a of the leg elastic region 42, but the inner edge 61 a overlaps with the liquid absorbing structure 11. May be in position. The outer edge 61b in the case where the symbols are intermittently formed in the vertical direction Y is a line obtained by sequentially connecting the edge portions of the symbols located on the outermost side of the symbol display unit 61 in the vertical direction Y. . The symbol display unit 61 may be formed by printing on the side sheet 44 instead of the film 60, and the film 60 can be omitted from the side flap 43 in this case.

  In the side flap 43, a second display portion 63 that can be visually distinguished from the symbol display portion 61 may be formed outside the symbol display portion 61 in the lateral direction X. The 2nd display part 63 is formed between the bending part 44a of the side seat | sheet 44 which forms the periphery of the leg opening 34, and the outer edge 61b of the symbol display part 61, and can make the symbol display part 61 actualize. . In the present embodiment, a white second display portion 63 that is the ground color of the side sheet 44 is formed. The second display unit 63 may display a graphic or character different from the symbol in the symbol display unit 61. Moreover, it is good also as a structure which expands the width | variety of the film 60 in FIG. 5, and forms the symbol display part 61 and the 2nd display part 63 in the film 60. FIG. In the side flap 43, the second display portion 63 may not be formed, and the symbol display portion 61 may extend to the bent portion 44a.

  Referring to FIGS. 7A and 7B, when the diaper 10 is worn, the side flap 43 exhibits a function as a gasket cuff that contacts the wearer's thigh and prevents side leakage. . Since the symbol display part 61 is formed in the side flap 43 across the inner edge 42a of the leg elastic region 42, it is difficult for a mother or the like to pay attention to the inner edge 42a of the leg elastic region 42 of the diaper 10. However, it is easy to focus on the portion corresponding to the inner edge 42a. Thereby, if the user is in an abnormal state where the leg elastic region 42 is wound inside the diaper 10 or is meandering, the user can easily find the state. Moreover, since the site | part which can identify with the symbol display part 61 is formed in the leg opening edge part 18e, 19e of the front-and-back waist panels 18 and 19, a user is contrasted with the front-and-back waist panels 18 and 19. Therefore, the presence of the symbol display unit 61 can be easily recognized, and the abnormality of the side flap 43 can be easily found. An example of the part that can be identified as such is a part having a color different from the color of the symbol display unit 61. In the present embodiment, the leg opening edges 18e and 19e can be easily present by contrast with the symbol display part 61 by forming the second display part 63 on which the symbols are not displayed on the leg opening edges 18e and 19e. Can be recognized. Furthermore, as shown in FIG. 6, in the side flap 43, the region between the inner edge 42 a of the leg elastic region 42 and the side edge of the absorber 58 is the front and rear waist via the first joint portion 41 a (see FIG. 4). Since it is fixed to the panels 18, 19, that is, which region surely spreads in the lateral direction X, the inner edge 42 a of the leg elastic region 42 in the front and rear waist regions 14, 15 is the diaper 10 when the diaper 10 is mounted. It can be prevented that it enters the inside of the door and bends. Furthermore, when the 1st junction part 41a is extended to the outer side edge 24b of the leg elastic region 42, it can prevent that the whole area of the width direction (lateral direction X) of the leg elastic region 42 is bent inside.

  As shown in FIG. 8, in the crotch region 16 of the diaper 10 in a worn state, particularly in the crotch region 16 near the wearer's buttocks, the side flaps 43 are not restrained by the front and rear waist panels 18, 19, The side flap 43 tends to bend toward the inside of the diaper 10. In this case, when the symbol display part 61 located in the buttock is bent to the inside of the diaper 10 with respect to the symbol display part 61 located in the vicinity of the front and rear waist regions 14 and 15, a part of the symbol display part 61 becomes invisible. Thus, the bending of the side flap 43 can be easily found. When the side flap 43 bends in the vicinity of the inner edge 42a of the leg elastic region 42 and enters the inside of the diaper 10, a gap is formed between the side flap 43 and the body. If this state is not noticed, there is a risk of excretion of the excrement, but in the present invention, it becomes easier to notice the bending of the inner edge 42a and the entry into the inside of the diaper 10, and this state is eliminated. Thus, side leakage can be prevented. Since the outer edge 61b of the symbol display part 61 is formed in parallel with the inner edge 42a of the leg elastic region 42, it becomes impossible to recognize the presence of the symbol parallel to the inner edge 42a, thereby finding the bent side flap 43. Becomes easier. Further, since the second display portion 63 is formed outside the symbol display portion 61, even when a portion outside the inner edge 42a is bent, the bent portion can be easily found, and thus the leg It is possible to easily find the bent side flaps in the entire elastic region 42.

  9 (a) and 9 (b), when the wearer of the diaper 10 is an infant, peculiar to the infant such as floating the waist and holding the toes in the mouth or crossing both legs in a lying state. May be operated. When such an operation is performed, the lower elastic region 35c of the rear waist region 15 is pulled by the contracting action of the leg elastic region 42, and the entire rear waist region 15 moves so as to be displaced forward, so that the infant's dorsal side is moved. There are problems such as exposure. In such a case, if the extension force of the leg elastic region 42 is larger than each elastic region of the rear waist region 15, the rear waist region 15 is more easily moved forward by the contracting action of the leg elastic region 42. In the present embodiment, since the extension force of the leg elastic region 42 is smaller than each of the upper elastic region 35a and the intermediate elastic region 35b, the leg elastic region 42 is contracted to the lower elastic region 35c by the contraction of the leg elastic region 42. Even if a force for pulling is applied, the lower elastic region 35c is not greatly displaced, and the entire rear waist region 15 does not move forward. Further, by relatively increasing the extension force between the middle elastic region 35b and the upper elastic region 35a that are opposed to each other in the longitudinal direction X from the most protruding portion of the wearer's buttocks to the waist, Even if a force is applied to the elastic region 35c to pull it forward by the leg elastic region 42, the upper portion where the intermediate elastic region 35b and the upper elastic region 35a of the rear waist region 15 are located on the wearer's body. It fits and is positioned so as to be hooked on the upper end of the buttocks.

  In particular, when the mutual relationship between the extension forces in the elastic regions of the rear waist region 15 is such that the upper elastic region 35a> the intermediate elastic region 35b> the lower elastic region 35c, the upper elastic region 35a in the waist panel of the diaper 10 is The fitting property of the diaper 10 that can be used and pressed firmly against the back side portion of the waist of the diaper 10 is improved.

Second Embodiment
In the diaper 10 shown in the extended state in FIG. 10, the crotch panel 13 includes an exterior sheet 65 on which the liquid absorbing structure 11 is disposed and a pair of side flaps 43, and the exterior sheet 65 (see FIG. 3) and the side The flap 43 is joined to the front and rear waist panels 18 and 19 via a joining area 41 (see FIG. 4). The side flaps 43 include a cover sheet 80 fixed to both sides of the exterior sheet 65, a plurality of string-like or strand-like leg elastic bodies 45 covered with the cover sheet 80, and a film covered with the cover sheet 80. 60 (see FIG. 5). A pattern display unit 61 having a pattern is formed on the film 60. The symbol display unit 61 is formed across the inner edge 42 a of the leg elastic region 42, and a second display unit 63 is formed outside the symbol display unit 61 in the lateral direction X. In the diaper 10 of the second embodiment, similarly to the first embodiment, the joining area 41 prevents the inner edge 42a of the leg elastic area 42 from bending inside the leg opening 23 in the front and rear waist areas 14, 15. be able to. Moreover, the bent of the side flap 43 can be easily found by the symbol display unit 61 and the second display unit 63.

  The cover sheet 80 of the side flap 43 is formed of a single fiber non-woven fabric or plastic film, and is fixed to the exterior sheet 65 via a hot melt adhesive in a state of being folded in two. 45 is fixed to the inner side of a bent portion 44a in which the cover sheet 80 is bent and fixed via a hot melt adhesive (not shown) applied to the peripheral surface thereof so as to be contractible in an extended state. The side flaps 43 are fixed to the skin facing surface of the exterior sheet 65 in a contracted state in the vertical direction Y as a whole, and are formed so that a large number of gathers 81 extending in the horizontal direction X are arranged in the vertical direction Y. The gathers 81 extend in the horizontal direction X and are aligned in the vertical direction Y not only in the region where the leg elastic bodies 45 are disposed, but also in the joint portion 82 where the side flaps 43 are fixed to the base sheet 87.

  The dimension in the longitudinal direction Y of the crotch region 16, that is, the separation dimension L2 in the longitudinal direction Y in the drawing between the lower end edge 18a of the front waist region 14 and the lower end edge 19a of the rear waist region 15 is 180 to 300 mm. It is preferable that the dimension L4 of the bent portion 44a and the vicinity thereof at the time of maximum extension of 43 is about 210 to 420 mm. Here, the effective extension dimension L4 means the lower end edge 18a of the front waist region 14 and the lower end edge 19a of the rear waist region 15 excluding the front and rear end portions 46, 47 that are fixed to the front and rear waist regions 14, 15 and do not substantially extend. It is the length of the bending part 44a of the side flaps 43 located between. The bent portion 44a can be elastically extended to such an extent that the gather 81 disappears, and the dimension L4 when extended in such a manner is larger than L2. The preferred side flap 43 is elastic at least 1.05 times, more preferably 1.05 to 1.5 times, and even more preferably 1.1 to 1.4 times the dimension L2 in the longitudinal direction Y of the crotch region 16. It is formed to be extensible. In the case of the diaper 10 of this embodiment, when worn, the side flap 43 fits the entire width of the leg elastic region 42 stably in the thigh in the lateral direction X.

  In the diaper 10 obtained from FIG. 10, in order to know the maximum dimension when the side flap 43 extends, the side flap 43 is cut out together with a part of the front and rear waist panels 18 and 19 from the diaper S10 of FIG. The specimen may be pulled in the longitudinal direction Y to such an extent that the gather 81 disappears, and the length of the portion corresponding to the dimension L2, that is, the dimension L4 may be measured with the long length. When the side flap 43 is in the state of FIG. 1, the extension amount of the bent portion 44a of the side flap 43 is affected by the non-extensible liquid-absorbing structure 11, so that the length of the bent portion 44a at that time May be smaller than the length obtained with the specimen.

<Third Embodiment>
In the embodiment shown in FIG. 11, the crotch panel 13 includes an exterior sheet 65 on which the liquid absorbing structure 11 is arranged, and the exterior sheet 65 is attached to the front and rear waist panels 18 and 19 via a joining area 41 (see FIG. 4). Be joined. The exterior sheet 65 has an extending portion extending in the lateral direction X from both side edges 11a and 11b of the liquid absorbing structure 11, and the side flap 43 is formed by a side portion 67 formed by folding the extending portion. Is formed. The side flap 43 includes a plurality of string-like or strand-like leg elastic bodies 45 covered with the exterior sheet 65 and a film 60 covered with the exterior sheet 65 at the side portion 67. A symbol display portion 61 is formed on the film 60. The symbol display unit 61 straddles the inner edge 42 a of the leg elastic region 42 or is formed on the inner side of the inner edge 42 a, and the second display unit 63 is formed on the outer side of the symbol display unit 61 in the lateral direction X. The film 60 may extend from one side flap 43 to the other side flap 43, and the film 60 in this case is disposed between the exterior sheet 65 and the liquid absorbing structure 11. Moreover, the symbol display part 61 may be formed by printing not on the film 60 but on the exterior sheet 65, and in this case, the film 60 can be omitted. In the diaper 10 of the third embodiment, the inner edge 42a of the leg elastic region 42 is prevented from being bent toward the inner side of the diaper 10 in the front and rear waist regions 14 and 15 by the joining region 41 as in the first embodiment. can do. Further, since the symbol display part 61 and the second display part 63 are formed, the bent side flap 43 can be easily found.

  In the present embodiment, the rear waist panel 19 is formed in a trapezoidal shape and has a flange cover portion 35d extending to the crotch region 16 side. A plurality of string-like or strand-like collar elastic bodies 32d are attached to the collar cover part 35d in an extended state in the lateral direction X. In the front and rear waist panels 18 and 19, the leg opening edge portions 18e and 19e forming a part of the peripheral edge portion of the leg opening 23 can be visually identified with respect to the symbol display portion 61 along the lower end edges 18a and 19a. Are formed. It is preferable that the symbol display part 61 is joined to the buttock cover part 35 in a portion overlapping with the buttock elastic body 32d when viewed in plan. When the side flap 43 is bent inside the diaper 10, the side flap 43 can be seen through the buttock cover portion 35 and found. In the present invention, the “front and rear waist regions 14 and 15” mean portions between the seam portions 20 of the front and rear waist panels 18 and 19, and are portions positioned below the seam portions 20, that is, It does not include the collar cover part 35d which is located between the seam part 20 and the lower end edge 19a and is given elasticity by the collar elastic body 32d. In addition, the shape of the collar part cover part 35 can be made into a rectangle instead of the example of illustration. Moreover, in the diaper 10, the drooping part similar to the buttock cover part 35 can be provided on both sides of the front waist panel 18. The hanging portion is also preferably joined to a portion of the side flap 43 where the symbol display portion 61 exists.

  Unless otherwise specified, each component member constituting the pants-type disposable diaper 10 includes various known materials that are commonly used in this type of field, in addition to the materials described herein. The material can be used without limitation. In addition, the terms “first”, “second”, and “third” used in the present specification and claims are merely used to distinguish similar elements, positions, and the like.

The disclosure relating to the present invention described above can be organized into at least the following matters.
A front waist panel having a longitudinal direction and a lateral direction perpendicular thereto, a skin facing surface and a non-skin facing surface located on the opposite side thereof, and defining a front waist region; and a rear waist panel defining a rear waist region A crotch panel defining a crotch region located between the front and rear waist regions, the crotch panel comprising an absorber extending from the crotch region to the front and rear waist region, and both lateral sides of the absorber. A pair of side flaps extending from each other, both side portions of the front and rear waist panels are joined to each other, and both end portions of the crotch panel are joined to the front and rear waist panels, respectively. In a pants-type wearing article in which an opening is defined, the side flap forms at least a part of the leg opening And a leg elastic region along the leg opening, and a display portion displaying a pattern extending from the front waist region to the rear waist region, wherein the leg elastic region includes an inner edge facing the lateral direction, An outer edge, and the display portion is formed across the inner edge of the leg elastic region, and in at least one waist region of the front and rear waist regions, the side flaps are arranged with side edges of the absorber. The said wearing article joined to the waist panel which demarcates said one waist region between the said inner edge of the said leg elastic region.

The wearing article according to the present invention disclosed in the paragraph 0044 can include at least the following embodiments.
(1) The front / rear waist panel forms a part of the periphery of the leg opening, and the front / rear waist panel has a display portion that can be distinguished from the symbol display unit along the periphery. Yes.
The (2) before Kisukuna without even one waist panels, the plural rows of waist elastics extending in the transverse direction is telescopically positioned in the side flaps, a plurality extending along the periphery of the leg opening and the leg elastic member is telescopically positioned in the strip, and the leg elastic member for forming the inner edge of the leg elastic regions among the leg elastics of the plural rows, and the waist elastic member at least a Article, The at least one waist panel and the side flap overlap each other and are in a state of crossing each other.
(3) Of the waist elastic body in the at least one waist panel, the waist elastic body extending from both side portions of the waist panel to both side edges of the absorber crosses the absorber. There is no embodiment, or even if the absorber crosses the absorber, the portion that crosses the absorber is relaxed, and the absorber is in any one of the above embodiments. No gathers are formed due to the contraction of the elastic waist.
(4) The said symbol display part has an outer edge parallel to the said inner edge of the said leg elastic region, and the said display part is formed in the outer side of the said outer edge in the said horizontal direction.
(5) The elastic force of the waist elastic body intersecting the leg elastic body forming the inner edge is larger than the elastic force of the leg elastic body.
(6) In the rear waist region, the side flap is joined to the rear waist panel at a portion located between the lateral center and the inner edge of the leg elastic region. Is located between the upper elastic region and the lower elastic region that can be expanded and contracted in the lateral direction obtained by dividing the vertical dimension into three equal parts, and the upper elastic region and the lower elastic region, Between the intermediate elastic region that can be expanded and contracted in the lateral direction, the extension force of each of the upper elastic region and the intermediate elastic region is larger than the extension force of the lower elastic region, and the longitudinal elastic region has an extension force in the longitudinal direction. Greater than elongation.
(7) The crotch panel is joined to the front and rear waist panels via joints extending in the longitudinal direction and the lateral direction.
(8) The side flap in the crotch panel is formed separately from the liquid absorbing structure, and the liquid absorbing structure is formed in a state where a number of gathers extending in the lateral direction are arranged in the vertical direction. The maximum dimension when the laterally outermost part of the side flap is joined in the longitudinal direction is joined, and the longitudinal dimension of the liquid absorbing structure at the part where the side flap is joined. Bigger than.

10 Wearing articles (diapers)
13 crotch panel 14 front waist region 15 rear waist region 18 front waist panel 19 rear waist panel 22 waist opening 23 leg opening 31, 32 waist elastic body 34a, 35a upper elastic body 34b, 35b intermediate elastic body 34c, 35c lower elastic body 41 Joining area 42 Leg elastic area 42a Inner edge 43 Side flap 45 Leg elastic bodies 54 and 55 End part 58 Absorber 59 Surface sheet 61 Symbol display part 61a Inner edge 61b Outer edge 63 2nd display part (display part)
P Center line X Horizontal direction Y Vertical direction

Claims (9)

A front waist panel having a longitudinal direction and a lateral direction perpendicular thereto, a skin facing surface and a non-skin facing surface which is the opposite surface, and defining a front waist region; and a rear waist panel defining a rear waist region; A crotch panel that defines a crotch region, and the crotch panel includes a liquid-absorbing structure in which the skin-facing surface of the absorbent body is covered with a liquid-permeable surface sheet, and both lateral sides of the absorbent body. A pair of side flaps that are positioned and extend to the front and rear waist regions, both side portions of the front and rear waist panels are joined to each other, and both front and rear end portions of the crotch panel are on the skin facing surfaces of the front and rear waist panels, respectively. In the pants-type wearing article in which the waist opening and the pair of leg openings are defined by being joined,
The side flap forms a part of the periphery of the leg opening, has a leg elastic region extending along the periphery, and has a symbol display part extending from the front waist region to the rear waist region,
The leg elastic region has an inner edge and an outer edge that are defined by a leg elastic body included in the leg elastic region and face each other in the lateral direction,
The symbol display portion is formed to extend along the inner edge at least inside the inner edge in the lateral direction,
The side flap is joined to at least one of the front and rear waist panels between the lateral center of the crotch panel and the inner edge of the leg elastic region. Said wearing article.   The front and rear waist panels form a part of the peripheral edge of the leg opening, and the front and rear waist panels are formed with display portions that can be distinguished from the symbol display portion along the peripheral edge. 1. The wearing article according to 1. On one waist panel even without prior Kisukuna, waist elastics of plural rows are telescopically positioned extending in the transverse direction,
Wherein the side flaps, the leg elastics of the plural rows extending along the periphery of the leg opening is telescopically position,
Among the plurality of leg elastic bodies, the leg elastic body forming the inner edge of the leg elastic region and at least one waist elastic body overlap the at least one waist panel and the side flap. The wearing article according to claim 1 or 2 which is in the state where it mutually crossed in the part joined mutually. Of the waist elastic bodies in the at least one waist panel, the waist elastic body extending from both side portions of the waist panel to both side edges of the absorber does not cross the absorber. The waist elastic body according to any one of the aspects described above, wherein the waist elastic body is in a relaxed manner in a portion that crosses the absorber even though it crosses the absorber. The worn article according to claim 3, wherein no gathers are formed due to the shrinkage of the. The wear according to claim 2, wherein the symbol display part has an outer edge parallel to the inner edge of the leg elastic region, and the display part is formed outside the outer edge in the lateral direction. Goods. The wearing article according to claim 3 or 4 , wherein an extension force of the waist elastic body intersecting with the leg elastic body forming the inner edge is larger than an extension force of the leg elastic body. The side flap has a portion located between the lateral center and the inner edge of the leg elastic region in the rear waist region, and is joined to the rear waist panel.
The rear waist panel is divided between the upper elastic region and the lower elastic region, and the upper elastic region and the lower elastic region, which can be expanded and contracted in the lateral direction, obtained by dividing the vertical dimension into three equal parts. Between the intermediate elastic region that can be stretched in the lateral direction,
The extension force of each of the upper elastic region and the intermediate elastic region is larger than the elastic force of the lower elastic region and larger than the elastic force of the leg elastic region in the longitudinal direction. Wearing articles.   The said crotch panel is a wearing article in any one of Claims 1-7 joined to the said front-and-back waist panel via each of the junction part extended in the said vertical direction and the said horizontal direction. The side flaps in the crotch panel are formed separately from the liquid absorption structure, and are joined to the liquid absorption structure in a state where a large number of gathers extending in the horizontal direction are arranged in the vertical direction. And
The maximum dimension when the laterally outermost part of the side flap is extended in the longitudinal direction is larger than the longitudinal dimension of the liquid absorbing structure at a part where the side flap is joined. The wearing article in any one of 1-8.

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