absorbent articles

Abstract

To provide a technique for optimizing sticking of a tape-like member.SOLUTION: An absorbent article comprises: a tape-like member extending in a width direction from width-direction both ends of a front body or a back body and including hooks protruding to a skin surface side; a sheet-like member including a nonwoven fabric made of fibers having less than a prescribed fiber length and located on a non-skin surface side of the front body or the back body without any tape-like member; and a sticking part provided on an outermost layer on the non-skin surface side so as to overlap with the sheet-like member and to which the hooks can be caught, where a color of the sticking part is transparent, translucent or similar to a color of the sheet-like member, and a prescribed color different from the color of the sheet-like member is applied to at least a part of an edge of the sticking part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an absorbent article. [Background technology]

[0002] Absorbent articles such as disposable diapers, urine pads, and sanitary napkins have been developed (see, for example, Patent Document 1). The diaper described in Patent Document 1 has a fastening tape extending in the width direction of the rear body and having a hook material on the skin-facing side. A front patch having a loop material is provided on the surface (non-skin-facing side) of the cover sheet of the front body. The hook material is hooked onto the loop material, thereby fixing the fastening tape to the front patch. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-175885 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a technique for optimizing the application of a tape-shaped member. [Means for solving the problem]

[0005] An absorbent article according to one aspect of the present disclosure comprises a tape-like member extending widthwise from both widthwise ends of a front or back body and having hooks protruding on the skin-facing side; a sheet-like member including a nonwoven fabric made of fibers having a predetermined fiber length or less and positioned on the non-skin-facing side of the front or back body where the tape-like member is not provided; and an attachment portion which is provided on the outermost layer on the non-skin-facing side so as to overlap the sheet-like member and to which the hooks can be hooked, the color of the attachment portion being transparent, translucent, or similar to the color of the sheet-like member, and at least a portion of the edge of the attachment portion being colored a predetermined color different from the color of the sheet-like member. [Effects of the Invention]

[0006] According to the present invention, the application of the tape-shaped member can be optimized. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a diaper according to an embodiment. [Figure 2] FIG. 2 is an example of an enlarged view of a portion of the front patch. [Figure 3] FIG. 3 is an example of an enlarged view of a portion of the tape. [Figure 4] FIG. 4 illustrates an example of the tape being applied to the front patch. [Figure 5] FIG. 5 illustrates a pattern in which member A is attached to the front patch. [Figure 6] FIG. 6 shows an example of the test results of the maximum tensile force measured in the peel test. [Figure 7] FIG. 7 is an example of a partially enlarged view of a front patch according to a first modified example. [Figure 8] FIG. 8 is an example of a partially enlarged view of a front patch according to a second modified example. [Figure 9] FIG. 9 is a cross-sectional view of the front body region of a diaper provided with a front patch according to a second modification. [Figure 10] FIG. 10 is a diagram illustrating a pattern in which the tape according to the third modification is attached to the front patch. [Figure 11] FIG. 11 is an example of a partially enlarged view of a front patch according to the fourth modified example. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, absorbent articles according to embodiments of the present invention will be described with reference to the drawings. Note that the configurations of the following embodiments are examples, and the present invention is not limited to the configurations of these embodiments.

[0009] <Embodiment> In this embodiment, the longitudinal direction of a tape-type disposable diaper (an example of an "absorbent article" in the present application, hereinafter simply referred to as "diaper") is the direction connecting the front body portion, which is disposed opposite the user's abdomen, and the back body portion, which is disposed opposite the user's back. A crotch portion, which is disposed between the user's crotch (opposed to the crotch) and the front body portion (one side in the longitudinal direction) and the back body portion (the other side in the longitudinal direction) (the center in the longitudinal direction), is located. Furthermore, when the disposable diaper is worn by a user (hereinafter abbreviated as "worn state"), the side facing the user's skin (the inner side when worn) is the skin-facing side, and the side opposite the skin-facing side (the outer side when worn) is the non-skin-facing side. Furthermore, the direction connecting the skin-facing side and the non-skin-facing side is the thickness direction, and the direction perpendicular to both the longitudinal direction and the thickness direction is the width direction. Furthermore, a view from the thickness direction is a planar view.

[0010] 1 is a perspective view of a diaper according to this embodiment. The diaper 1 has a crotch region 1B, which corresponds to the crotch region that covers the user's genitals when worn, a front body region 1F located in front of the crotch region 1B and corresponding to the user's front body, and a back body region 1R located behind the crotch region 1B and corresponding to the user's back body.

[0011] Tapes 2L, 2R (an example of the "tape-like member" of the present disclosure) are provided on both the left and right edges of the back body region 1R. A cover sheet 4 (an example of the "sheet-like member" of the present disclosure) is disposed on the outermost layer of the non-skin-facing side of the diaper 1. A front patch 2F (an example of the "attachment portion" of the present disclosure) to which the tapes 2L, 2R can be attached is provided in the center of the cover sheet 4 in the front body region 1F.

[0012] When the tapes 2L and 2R are attached to the front patch 2F with the front body region 1F positioned on the user's abdomen and the back body region 1R positioned on the user's back, the diaper 1 is secured to the user's body so as to surround the user's abdomen and thighs. Since the diaper 1 is secured to the user's body in this manner, the user can stand and walk while wearing the diaper 1.

[0013] The diaper 1 has a liquid-absorbing absorbent body, which is mainly located near the crotch region 1B, that can absorb and retain liquid. The diaper 1 also has three-dimensional gathers 3BL, 3BR around the user's thighs and waist gathers 3R around the user's abdominal area to prevent gaps from forming between the diaper 1 and the user's skin that could serve as a liquid leakage path. The three-dimensional gathers 3BL, 3BR and waist gathers 3R adhere closely to the user's skin due to the elasticity of the elastic threads. Therefore, liquid excreted from the user's genitals is absorbed by the absorbent body of the diaper 1 with almost no leakage from the diaper 1.

[0014] A top sheet is disposed on the skin-facing side of the absorbent body. A water-permeable nonwoven fabric that feels pleasant against the skin is used for the top sheet. The top sheet prevents the absorbent body from shifting position, and allows liquid discharged from the user's genitals to quickly permeate from the skin-facing side into the absorbent body, keeping the user's skin dry and preventing liquid from flowing back from the absorbent body to the skin. A back sheet is disposed between the absorbent body and the cover sheet 4. The back sheet is, for example, a water-impermeable film sheet that prevents liquid that has flowed into the absorbent body from seeping out of the cover sheet 4. The back sheet may be waterproof and breathable. If the back sheet is breathable, it can release some of the moisture contained in the liquid that has flowed into the absorbent body toward the back sheet, thereby maintaining the user's comfort for a long period of time.

[0015] It is conceivable that the cover sheet 4 is made of a short fiber material. In such a case, if the front patch 2F is transparent or translucent, or if the front patch 2F is the same color as the cover sheet 4, the tapes 2L and 2R may protrude beyond the front patch 2F. In such a case, the short fibers may become entangled in the hook material of the tapes 2L and 2R. This makes it difficult to repeatedly attach the tapes 2L and 2R to the diaper 1.

[0016] In this embodiment, a technique is provided to prevent the tapes 2L and 2R from sticking out of the front patch 2F and being attached to the cover sheet 4 when the cover sheet 4 contains short fiber material.

[0017] FIG. 2 is an example of a partially enlarged view of the vicinity of the front patch 2F as viewed from the non-skin side. As shown in FIG. 2, the front patch 2F is arranged so as to lie across the width direction of the cover sheet 4. The front patch 2F is rectangular in shape and white in color. The front patch 2F is made of nonwoven fabric made of fibers with a fiber length of 50 mm or more. The entire periphery of the edge 5 of the front patch 2F is colored, for example, red (an example of the "predetermined color" of the present disclosure). The width of the red edge 5 is, for example, 5 mm or more. Note that in FIG. 2, the fill pattern is changed depending on the color to represent the difference in color.

[0018] The cover sheet 4 provided with such a front patch 2F forms the exterior surface of the diaper 1. The cover sheet 4 is made of a nonwoven fabric made of short fibers (e.g., fiber length less than 50 mm) to improve the feel of the diaper 1. The cover sheet 4 may be made of a nonwoven fabric made of a liquid-impermeable thermoplastic resin to prevent leakage of excrement, for example. Examples of liquid-impermeable thermoplastic resins include polyethylene (PE) and polypropylene (PP). The cover sheet 4 is not limited to a single-layer structure, but may also have a multi-layer structure having an inner cover sheet and an outer cover sheet. The cover sheet 4 is white, just like the front patch 2F.

[0019] As shown in FIG. 2, the front patch 2F is provided with a mark 21 (an example of a "medium" in the present disclosure) that can be used as a target when attaching the tapes 2L and 2R. The mark 21 is, for example, blue, a different color from the border 5. In addition, registration marks 22 (an example of a "mark" in the present disclosure) are provided on both ends of the cover sheet 4 in the width direction. The registration marks 22 are used for aligning the various sheets when attaching them to the diaper 1 during production of the diaper 1. The registration marks 22 are red, the same color as the border 5.

[0020] Fig. 3 is an example of an enlarged view of a portion near tape 2L. As shown in Fig. 3, tape 2L has a rectangular portion extending in the width direction from one end of the rear body section of diaper 1 in the width direction. It also has a tip portion 25 extending in the width direction from this rectangular portion. A hook portion 23 having a width of, for example, 24 mm is provided on the skin-facing side of tip portion 25. The right side of hook portion 23 in Fig. 3 has a length of, for example, 27 mm, and the left side has a length of, for example, 31 mm. While Fig. 3 illustrates tape 2L, tape 2R also has a similar structure to tape 2L.

[0021] Figure 4 shows an example of an outline of the front patch 2F when the tapes 2L and 2R are attached. Figure 4(A) is an example of a cross-sectional view of the front patch 2F. Figure 4(B) is a schematic diagram of the front patch 2F as seen from the non-skin side.

[0022] As shown in Fig. 4(A), the hook portion 23 has a hook 72 protruding toward the skin surface. The hook 72 has a cylindrical protruding portion 72a and an extending portion 72b extending from the end of the protruding portion 72a in a direction perpendicular to the protruding direction. The cross-sectional shape of the extending portion 72b in the direction perpendicular to the protruding direction is substantially elliptical. The cross-sectional area of the extending portion 72b increases in the direction of protruding of the convex portion 72a. In other words, the length of the extending portion 72b in the direction perpendicular to the protruding direction of the convex portion 72a increases in the direction of protruding.

[0023] Such a hook 72 is 2.7 x 10 6 pieces / m 2 The hooks 72 are provided on the surface of the hook portion 23 at a density of about 105 μm. The radius of the protrusions 72a is about 105 μm. The extensions 72b located at the ends of the protrusions 72a in the protruding direction extend about 95 μm from the protrusions 72a. The diameter of the fibers 24 of the nonwoven fabric forming the front patch 2F to which the hooks 72 are attached is about 12 μm, for example, and the basis weight of the nonwoven fabric is about 15 g / m, for example.

[0024] When the hook portion 23 is pressed against the front patch 2F, the fibers 24 of the nonwoven fabric forming the front patch 2F press the extending portion 72b toward the hook portion 23. Therefore, the extending portion 72b elastically deforms with the integrally formed convex portions 72a as fixed ends. The fibers 24 then enter the gaps between the convex portions 72a. The elastically deformed extending portion 72b then returns to its original shape, and the fibers 24 are held between the extending portion 72b and the hook portion 23, as shown in FIG. 4. Even if the user then stops pressing the tape 2L, the fibers 24 remain held between the extending portion 72b and the hook portion 23. This mechanism secures the tapes 2L and 2R to the front patch 2F (see FIG. 4(B)). In other words, the front patch 2F functions as a hook-and-loop fastener to which the tapes 2L and 2R can be attached.

[0025] Furthermore, when a force is applied in a direction to peel the tapes 2L and 2R from the front patch 2F while the fibers 24 are held between the extending portion 72b and the hook portion 23, the extending portion 72b elastically deforms, causing the fibers 24 to come out from between the extending portion 72b and the hook portion 23. Here, the fibers 24 are long fibers having a fiber length of 50 mm or more. This prevents the fibers 24 from becoming entangled in the hooks 72 of the hook portion 23. This makes it possible to reattach the peeled tapes 2L and 2R to the front patch 2F.

[0026] The front patch 2F described above has a red color around the entire edge 5. This encourages the user to apply the tapes 2L and 2R to the area surrounded by the edge 5. However, it is possible that the hook portions 23 of the tapes 2L and 2R may be partially stuck outside the edge 5 when the tapes are applied to the front patch 2F. Therefore, the short fibers of the cover sheet 4 may become entangled with the protruding hook portions 23, preventing the protruding portions from functioning as hook-and-loop fasteners. As a result, the fastening strength of the tapes 2L and 2R may decrease when the tapes are repeatedly applied to the front patch 2F. Therefore, the force required to peel the tapes 2L and 2R from the front patch 2F when the hook portions 23 of the tapes 2L and 2R are stuck outside the edge 5 was measured as follows. The overlapping extent of the hook portions 23 of the tapes 2L and 2R and the front patch 2F was then determined to determine whether or not the diaper 1 could be securely fastened to the user.

[0027] [Peel test] FIG. 5 illustrates a pattern in which the tape 2R (hereinafter referred to as component A) separated from the diaper 1 is attached to the front patch 2F. FIG. 5(A) illustrates a case in which the entire hook portion 23 is attached to the front patch 2F. On the other hand, FIGS. 5(B) and 5(C) illustrate a pattern in which the hook portion 23 is attached to the front patch 2F with a portion of the hook portion 23 protruding from the front patch 2F. FIG. 5(B) illustrates a case in which the overlapping area between the hook portion 23 and the front patch 2F is approximately 67% of the area of the hook portion 23. FIG. 5(C) illustrates a case in which the overlapping area between the hook portion 23 and the front patch 2F is approximately 33% of the area of the hook portion 23. The overlapping area in FIG. 5(A) is approximately 7.0 cm. 2 ,The overlapping area in Figure 5(B) is about 4.6 cm 2 ,The overlapping area in Figure 5(C) is about 2.3 cm 2 This becomes:

[0028] In the peel test, first, states in which component A gradually protruded from the front patch 2F were created as shown in Figures 5(A) to 5(C). Then, for each of the states shown in Figures 5(A) to 5(C), the rear end of component A was gripped with a predetermined gripping portion from a direction perpendicular to the front patch 2F and pulled at a predetermined speed (e.g., 300 mm / min). The tensile force acting on the predetermined gripping portion was measured until component A peeled from the front patch 2F. This test was repeated four times for each of the states shown in Figures 5(A) to 5(C).

[0029] Figure 6 shows an example of the test results for the maximum tensile force measured in the peel test. As shown in Figure 6, it was found that a force of approximately 0.6 N or more was required to peel component A from the states shown in Figures 5(A) to 5(C). Incidentally, a force of 0.6 N corresponds to the force required to prevent component A from peeling from the front patch 2F even when a crawling baby wears the diaper 1 for 12 hours during the day and 12 hours at night. Therefore, it was confirmed that there is no problem with the fit of the diaper 1 to the user as long as the overlapping area between the hook portion 23 and the front patch 2F is approximately 33% or more of the area of the hook portion 23 (for example, when the overlapping area is equal to or larger than that shown in Figure 5(C)).

[0030] [Actions and Effects] If the edge 5 of the front patch 2F were not colored red, the front patch 2F and the cover sheet 4 would both be white, which could cause the user to apply the hook portions 23 of the tapes 2L and 2R beyond the edge of the front patch 2F. However, with the diaper 1 described above, the difference in color between the front patch 2F and the edge 5 allows the user to visually recognize the boundary between the front patch 2F and the cover sheet 4. This prevents the user from applying the hook portions 23 of the tapes 2L and 2R outside the edge 5 of the front patch 2F. This prevents the short fibers of the cover sheet 4 from becoming entangled in the hook portions 23 of the tapes 2L and 2R. This allows the tapes 2L and 2R to be repeatedly applied to the front patch 2F. Furthermore, the application of the hook portions 23 of the tapes 2L and 2R to the cover sheet 4 prevents the cover sheet 4 from becoming frayed. Furthermore, the peeling of the hook portions 23 from the cover sheet 4 prevents holes from being formed in the cover sheet 4. This allows the user to wear the same diaper 1 for a long period of time, which is economical for consumers.

[0031] Furthermore, with the diaper 1 described above, even if the user applies tapes 2L and 2R to the outside of the edge 5 of the front patch 2F, the user can wear the diaper for about a day as long as the overlapping area between the hook portion 23 and the front patch 2F is approximately 33% or more of the area of the hook portion 23 (see Figures 5 and 6).

[0032] Furthermore, the results of the peel test shown in FIGS. 5 and 6 indicate that when the width of the edge 5 is set to 33% or more of the longitudinal length (vertical direction in FIG. 5 ) of the hook portions 23 of the tapes 2L and 2R, and the longitudinal ends of the hook portions 23 are attached along the inner edge of the edge 5 as shown in FIG. 5(C), the overlapping area between the hook portions 23 and the front patch 2F is automatically secured to 33% or more. Therefore, the user can wear the diaper for approximately one day. Furthermore, if short fibers of the cover sheet 4 become entangled in the hooks 72 of the hook portions 23 that protrude from the front patch 2F, peeling the tapes 2L and 2R from the front patch 2F and reattaching the entire hook portions 23 to the front patch 2F will result in an overlapping area of approximately 33%. Even in such a case, the user can wear the diaper for approximately one day. This diaper 1 can be said to have high usability.

[0033] Furthermore, in the diaper 1 described above, the color of the edge 5 of the front patch 2F is different from the color of the mark 21 affixed to the front patch 2F. Therefore, the edge 5 also functions as a registration mark. Therefore, alignment of various sheets when attaching them to the diaper 1 during manufacturing of the diaper 1 can be more reliable.

[0034] Furthermore, in the diaper 1 described above, the color of the border 5 is different from the color of the mark 21 but the same as the color of the register mark 22. Therefore, a user who sees the diaper 1 will recognize that the border 5 is different from the mark 21 and other indicia displayed on the diaper 1. Therefore, since the border 5 leaves a strong impression on the user, the user will be discouraged from attaching the hook portions 23 of the tapes 2L and 2R to the outside of the border 5.

[0035] Furthermore, in the diaper 1 described above, the width of the edge 5 is 5 mm or more. Therefore, the edge 5 can make the front patch 2F stand out. This also prevents the user from attaching the hook portions 23 of the tapes 2L and 2R to the outside of the edge 5. In this way, in the present embodiment, when the cover sheet 4 contains a short fiber material, it is possible to prevent the tapes 2L and 2R from sticking out of the front patch 2F and being attached to the cover sheet 4.

[0036] [First Modification] Fig. 7 is an example of a partially enlarged view of the vicinity of the front patch 2F of the diaper 1A according to the first modification. As shown in Fig. 7, in the diaper 1A according to the first modification, the four corners of the edge 5 of the front patch 2F are colored red. The red coloring is not limited to the four corners of the edge 5, and may be applied to only a portion of the edge 5 of the front patch 2F. The absorbent 6, which is disposed closer to the skin than the cover sheet 4 of the diaper 1A, is disposed so that its longitudinal end overlaps a portion of the inner side of the edge 5. The position of the absorbent 6 is not limited to the state shown in Fig. 7, and it is sufficient that it overlaps at least a portion of the edge 5.

[0037] [Actions and Effects] According to the diaper 1A described above, a difference in thickness occurs at the edge 5. Therefore, the user can visually recognize the boundary between the front patch 2F and the cover sheet 4 due to the difference in color between the edge 5 and the cover sheet 4, and can also recognize the difference in thickness by pressing the edge 5 with a finger. Therefore, the user can recognize the boundary between the front patch 2F and the cover sheet 4. Therefore, even if only part of the edge 5 is colored, as shown in FIG. 7, the user can easily recognize the boundary between the front patch 2F and the cover sheet 4. Therefore, the user is prevented from attaching the hook portions 23 of the tapes 2L and 2R to the outside of the edge 5 of the front patch 2F.

[0038] [Second Modification] Next, a second modified example will be described. The body of an infant, an example of a user of the diaper 1, is very small compared to an adult. Therefore, the user's abdominal circumference easily changes due to breastfeeding, etc. If the diaper 1 is tightly fitted around the user's abdominal circumference when the user is hungry and the user breastfeeds, the user's abdominal circumference will expand significantly, causing the diaper 1 to tighten too much. This creates a problem in that the user may not be able to withstand the tightness of the diaper 1 and may regurgitate milk, etc. The second modified example aims to provide a diaper that can flexibly adapt to changes in the user's abdominal circumference.

[0039] Fig. 8 is an example of an enlarged partial view of the vicinity of the front patch 2F of the diaper 1A2 according to the second modified example. As shown in Fig. 8, in the diaper 1A2 according to the second modified example, the longitudinal ends of the absorbent body 6 extend into the area surrounded by the edge 5 of the front patch 2F.

[0040] Fig. 9 is a cross-sectional view of the front body region of a diaper 1A2 provided with a front patch 2F according to a second modified example, taken along the longitudinal direction of the diaper 1A2. In the second modified example, a top sheet 7, which is a skin-facing sheet, is disposed on the skin-facing side of the diaper 1A2, and an absorbent body 6 extends over a certain area on the non-skin-facing side of the top sheet 7. A water-impermeable back sheet 8 is disposed between the absorbent body 6 and the cover sheet 4, and a cover sheet 4 is further disposed on the non-skin-facing side thereof. A front patch 2F, which is an attachment portion, is provided over a certain area on the non-skin-facing side of the cover sheet 4. The absorbent body 6 and each sheet shown in FIG. 9 are joined to adjacent absorbents 6 or other sheets with an adhesive such as hot melt.

[0041] In the second modified example, the top sheet 7, the back sheet 8, and the cover sheet 4 extend longer than the absorbent core 6 in the longitudinal direction connecting the front and back body sections. In Fig. 9, the top sheet 7, the back sheet 8, and the cover sheet 4 extend to the longitudinal ends of the diaper 1A2. The top sheet 7, the back sheet 8, and the cover sheet 4 are joined to each other without the absorbent core 6 in between, on the longitudinal end side of the longitudinal end of the absorbent core 6.

[0042] Furthermore, the skin-contacting surface of the top sheet 7 in the second modified example is flat, and in the region where the absorbent body 6 extends, the back sheet 8 and cover sheet 4 of the diaper 1 bulge toward the non-skin-facing side due to the thickness of the absorbent body 6. On the other hand, in the region where the absorbent body 6 does not extend, the back sheet 8 and cover sheet 4 of the diaper 1 are joined to the top sheet 7 and are therefore positioned closer to the skin-facing side. As a result, the back sheet 8 and cover sheet 4 are bent toward the skin-facing side further to the longitudinal end of the longitudinal end of the absorbent body 6, and a step 9 is formed in that portion.

[0043] The front patch 2F, which is an attachment portion, is bonded and positioned on the non-skin facing side of the cover sheet 4. The front patch 2F is positioned so that its placement area overlaps with the step 9, and the step 9 is formed at least further inward in the longitudinal direction than the longitudinal ends of the front patch 2F. It is more preferable that the longitudinal ends of the absorbent body 6 are positioned in the area inside the edge 5 of the front patch 2F, i.e., in the area surrounded by the edge 5. In this way, the step 9 is positioned on the longitudinal end side of the front patch 2F, inside the edge 5, which is colored red, for example.

[0044] [Actions and Effects] According to the diaper 1A2 described above, in the extended region of the absorbent body 6 on the crotch region 1A2 side of the front patch 2F, the diaper 1A2 bulges toward the non-skin-facing side due to the thickness of the absorbent body 6, and the front patch 2F also bulges toward the non-skin-facing side. When a parent or guardian engages the tapes 2L and 2R inside the edge 5 of the front patch 2F to put the diaper 1A2 on a user, the tapes 2L and 2R can be easily and firmly engaged with the bulged portion of the front patch 2F toward the non-skin-facing side. Meanwhile, a step 9 resulting from the loss of thickness of the absorbent body 6 exists in a portion of the front patch 2F corresponding to the longitudinal end of the absorbent body 6, and the further longitudinal end of the step 9 is one step lower toward the non-skin-facing side. In other words, a step 9 resulting from the longitudinal end of the absorbent body 6 is formed in a specific portion of the extended region of the front patch 2F of the diaper 1A2. When a parent or guardian engages tapes 2L and 2R with the front patch 2F so as to straddle the step 9, the tapes 2L and 2R can be firmly engaged on the longitudinal crotch region 1B side of the step 9, i.e., the side where the absorbent body 6 is thick, but the longitudinal end side of the step 9 is depressed toward the skin surface, making it difficult to firmly engage them.

[0045] Therefore, when the user's abdominal circumference expands significantly due to breastfeeding or the like, the longitudinal end portions of the tapes 2L and 2R attached to the front patch 2F are easily disengaged. When the longitudinal end portions of the tapes 2L and 2R are disengaged, the tightening force of the diaper 1A2 around the user's abdominal circumference is reduced. This makes it less likely for the user to vomit. Even if the diaper 1A2 expands and a portion of the tapes 2L, 2R temporarily disengages from the front patch 2F, the entire surface of the tapes 2L, 2R will eventually re-engage with the front patch 2F. In particular, when the diaper is worn under clothing pressure, the tapes 2L, 2R re-engage very easily due to the clothing pressure. Thus, by providing the step 9 resulting from the end of the absorbent body 6 inside the edge 5 of the front patch 2F, the diaper 1A2 of the second modified example can easily accommodate temporary abdominal expansion of the user and prevent regurgitation and other problems caused by temporary excessive tightening.

[0046] It is preferable that the step 9 is formed on the inside of the edge 5 of the front patch 2F. By forming the step 9 on the inside of the edge 5, even if a parent or guardian engages the tapes 2L, 2R with the front patch 2F so that they straddle the step 9, the hook portions 23 of the tapes 2L, 2R are less likely to engage with the cover sheet 4, and therefore a decrease in the engagement force of the tapes 2L, 2R can be prevented.

[0047] [Third Modification] Next, a third modified example will be described. FIG. 10 illustrates an example of a pattern in which tapes 2L and 2R according to the third modified example are attached to a front patch 2F. In the diaper 1, the edge 5 of the front patch 2F is colored, making it easy for parents and guardians to properly attach the tapes 2L and 2R to the inside of the edge 5 when putting the diaper 1 on a user. FIG. 10(A) illustrates a state in which the hook portion 23 of the tape 2R is properly attached to the inside of the edge 5 of the front patch 2F. However, it is not possible to completely prevent a user or guardian from causing a portion of the tape 2L or 2R to climb over the edge 5, deviate from the front patch 2F, and attach it to engage with the cover sheet 4. The surface fibers of the cover sheet 4 peel off more easily than when tapes 2L and 2R are attached to the front patch 2F, resulting in a weaker engagement force. Furthermore, if the surface fibers peeled from the cover sheet 4 become entangled in the hook portion 23, it becomes difficult to obtain sufficient engagement force when the tape is reattached to the front patch 2F.

[0048] One possible solution is to make the tapes 2L and 2R translucent so that the color of the edge 5 is visible through the tapes 2L and 2R, thereby making the color of the edge 5 visible on the surface of the tapes 2L and 2R and encouraging proper application. However, if the edge 5 cannot be clearly seen from the surface of the tapes 2L and 2R, there is a risk that a user or guardian will not notice that the tapes 2L and 2R are not properly applied to the front patch 2F, even if the tapes 2L and 2R are applied offset from the extended region of the front patch 2F and part of the tapes straddles the edge 5. Therefore, the third modification aims to provide a diaper that allows a user or guardian to easily recognize when the tapes 2L and 2R are not properly applied inside the edge 5 of the front patch 2F.

[0049] In the diaper 1A3 of the third modification, the tapes 2L and 2R are translucent, and the color of the edge 5 of the front patch 2F is a color complementary to or close to the color of the tapes 2L and 2R. Complementary colors refer to a combination of chromatic colors that can be mixed to create an achromatic color, i.e., a combination of colors that are opposite each other on the color wheel. Examples of complementary color combinations include light blue and orange, red and green, and yellow and purple. Since the color of the edge 5 in the above embodiment is red, using green for the tapes 2L and 2R would make the color of the edge 5 and the color of the tapes 2L and 2R complementary. Note that the colors of the edge 5 and the tapes 2L and 2R are not necessarily complementary; for example, the colors of the tapes 2L and 2R may be light blue and the color of the edge 5 may be yellow, which are colors that are close to complementary. FIG. 10(B) shows the state in which the tape 2R is attached so as to straddle the edge 5 of the front patch 2F. In this figure, the color of the edge 5 attached to the front patch 2F is transmitted through the semi-transparent tape 2R and is clearly visible on the surface of the tape 2R in a way that is easy for parents and guardians to see. Therefore, the user, guardian, etc. can easily see that the tapes 2L and 2R are not attached to the front patch 2F in the correct positions.

[0050] [Actions and Effects] When complementary colors are used, the colors complement each other, creating a psychological effect known as complementary color contrast, which makes the colors appear stronger. In the main embodiment, the color of the border 5 is red. Therefore, if green is used for the tapes 2L and 2R, when the tapes 2L and 2R are attached so that they extend over the border 5, the color of the border 5, visible through the translucent tapes 2L and 2R, will clearly stand out due to the complementary color effect. This allows the user or guardian to more easily determine that the tapes 2L and 2R are attached over the border 5. Because complementary color contrast has a very strong psychological effect, it is also possible to combine the colors of the tapes 2L and 2R and the border 5 with colors that are close to complementary colors but slightly deviate from the complementary color relationship, such as yellow and light blue, to achieve an effect similar to complementary color contrast while reducing the psychological irritation to the user or guardian.

[0051] [Fourth Modification] Fig. 11 is an example of a partial enlarged view of a front patch 2FB of a diaper 1A4 according to a fourth modified example. As shown in Fig. 11, two front patches 2FB are arranged side by side in the width direction. Tape 2R is attached to the left front patch 2FB in Fig. 11, and tape 2L is attached to the right front patch 2FB. The entire periphery of the edge 5 of each front patch 2FB is colored red. This diaper 1A4 according to the fourth modified example can also achieve the same effects as the embodiment.

[0052] [Other variations] The diaper 1 may have tapes 2L and 2R on the front body region 1F, and a front patch 2F on the exterior surface of the back body region 1R. The diaper 1 according to the above embodiment is a so-called tape-type diaper, but may also be a pants-type diaper. The tapes 2L and 2R and the front patch 2F may be provided on the diaper 1 to tighten the waist area of the pants-type diaper. The colors of the front patch 2F, cover sheet 4, and edge 5 of the front patch 2F are not limited to those described above. The color of the front patch may be transparent, translucent, or similar to the color of the cover sheet 4. The color of the edge may be different from that of the cover sheet 4. The mark 21 and the registration mark 22 may not be provided. The color of the edge 5 may be different from that of the mark 21. The color of the edge 5 may be similar to that of the registration mark 22. The width of the edge 5 may be less than 5 mm.

[0053] According to the embodiments and modifications of the present disclosure, the application of the tape-shaped member can be optimized.

[0054] The embodiments and modifications disclosed above can be combined with each other. [Explanation of symbols]

[0055] 1, 1A, 1A2, 1A3, 1A4: Diapers 1B: Inseam area 1F: Front body area 1R: Back area 2F: Front Patch 2FB: Front patch 2L: Tape 2R: Tape 3BL: 3D gathers 3BR: 3D gathers 3R: Waist Gather 4: Cover sheet 5: Edge 6: Absorbent 21: Mark 24: Cashier mark 23: Hook part 24: Fiber 25:Tip 72: Hook 72a: Convex part 72b: Extension part A: Material

Claims

1. a tape-like member extending in the width direction from both ends of the front or back body in the width direction and having hooks protruding from the skin-facing side; a sheet-like member including a nonwoven fabric made of staple fibers and positioned on the non-skin-facing side of the front body or the back body where the tape-like member is not provided; an attachment portion that is provided on the outermost layer of the sheet-like member on the non-skin-facing side so as to overlap the sheet-like member, and that can be hooked by the hook; Equipped with the color of the attachment portion is transparent, translucent, or similar to the color of the sheet-like member; At least a part of the edge of the attachment portion is given a predetermined color different from the color of the sheet-like member in order to induce attachment of the hook to the attachment portion, the color of which is similar to the color of the sheet-like member surrounded by the edge. Absorbent articles.

2. The predetermined color is different from the color of the medium displayed in the attachment portion. The absorbent article of claim 1.

3. The predetermined color is used in manufacturing the absorbent article and is a color similar to the color of a mark affixed to the exterior surface of the absorbent article. The absorbent article according to claim 1 or 2.

4. The width of the portion to which the predetermined color is applied is 5 mm or more. The absorbent article according to claim 1 or 2.

5. the width of the portion to which the predetermined color is applied is 33% or more of the dimension in the width direction of the area of the tape-shaped material in which the hooks are arranged; The absorbent article according to claim 1 or 2.

6. Further provided is an absorbent body capable of absorbing excrement excreted by a user, The edge overlaps the end portion of the absorbent body in the longitudinal direction. The absorbent article according to claim 1 or 2.

7. an absorbent body capable of absorbing excrement excreted by a user; a skin-facing sheet disposed on the skin-facing side of the absorbent body; a cover sheet disposed on the non-skin-facing side of the absorbent body; Equipped with the skin-facing sheet and the cover sheet extend longer than the absorbent body in the longitudinal direction connecting the front body section and the back body section, and are joined to each other closer to the skin-facing side than the non-skin-facing side of the absorbent body at the longitudinal end portions so that a step is formed on the non-skin-facing side, The attachment portion is disposed so that an arrangement area thereof overlaps with the step, and the step is formed on the inner side in the longitudinal direction than the longitudinal direction end portion of the attachment portion. The absorbent article according to claim 1 or 2.

8. The step is provided on the inside of the edge of the attachment portion to which the predetermined color is applied. The absorbent article of claim 7.

9. the tape-shaped member is translucent and has a color that is complementary or opposite to the predetermined color; The absorbent article according to claim 1 or 2.

10. The color of the tape-shaped member is light blue, and the predetermined color is yellow. The absorbent article of claim 9.

Images