Absorbent article

Abstract

Provided is an absorbent article having an adhesive section on the non-skin-surface side, the absorbent article being capable of maintaining a rolled-up state after use and being capable of reducing unnatural and uncomfortable feelings during use. The absorbent article (10) has a front-back direction (L), a width direction (W) orthogonal to the front-back direction (L), a back surface sheet (22) facing the side opposite to the skin of the wearer, and an adhesive part (70) provided on the non-skin surface side of the back surface sheet (22). The absorbent article (10) further has, on the non-skin-surface side of the back sheet (22), a belt member (60) disposed further inward than the outer edge of the absorbent article (10). The belt member (60) is configured so as to be capable of extending outward from the outer edge of the absorbent article (10).

Description

[0001] This application is a divisional application of the international application filed on June 20, 2017, with application number 201780039071.4 (PCT application number PCT / JP2017 / 022736) and entitled "Absorbent Article". Technical Field

[0002] This invention relates to an absorbent article having an adhesive portion on the back side for securing to clothing, similar to sanitary napkins, panty liners, breast pads, adult incontinence pads, fecal pads, or sweat pads. Background Technology

[0003] Absorbent products such as sanitary napkins and panty liners are attached to the inside of the wearer's clothing during use. Typically, absorbent products attached to the inside of clothing have an adhesive portion to prevent them from shifting relative to the clothing. This adhesive portion is located on the side of the absorbent product opposite to the skin-facing side (the side facing the wearer's skin). With such absorbent products, if the absorbent product is rolled up lengthwise after use, the adhesive portion will touch the skin-facing side. However, because bodily fluids adhere to the skin-facing side (surface sheet) of the used absorbent product, these fluids can hinder the adhesion between the adhesive portion and the surface sheet, making it difficult to roll up the absorbent product tightly.

[0004] Patent Document 1 discloses a sanitary napkin for menstruation with a post-treatment strip portion. This sanitary napkin has an absorbent surface that faces the wearer's skin during use and a protective surface that faces the underwear during use. An adhesive strip for attaching the sanitary napkin to the underwear is provided on the protective surface. Furthermore, the post-treatment strip portion is a portion that protrudes outward from the absorbent surface along the length of the sanitary napkin. The post-treatment strip portion faces the same direction as the absorbent surface, i.e., towards the wearer's skin.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Utility Model Application Publication No. 04-35422 Summary of the Invention

[0008] In the sanitary napkin described in Patent Document 1, the finishing strip faces the same direction as the absorbent surface of the sanitary napkin. This finishing strip comes into contact with the wearer's skin during use, which can cause discomfort and an unnatural feeling for the wearer.

[0009] Therefore, there is a need for an absorbent material having an adhesive portion on the non-skin side, which can maintain its rolled-up state after use and reduce unnaturalness and discomfort during use.

[0010] An absorbent article of one technical solution has: a front-back direction; a width direction orthogonal to the front-back direction; a back panel facing the side opposite to the wearer's skin; and an adhesive portion disposed on the non-skin side of the back panel, wherein the non-skin side of the back panel also has a strap member disposed at a position inside the outer edge of the absorbent article, the strap member being configured to extend outwards from the outer edge of the absorbent article. Attached Figure Description

[0011] Figure 1 This is a top view of the absorbent article of the first embodiment as seen from the skin side.

[0012] Figure 2 This is a top view of the absorbent article of the first embodiment as seen from the non-skin side.

[0013] Figure 3 This is a perspective view of the absorbent article of the first embodiment in a rolled-up state along the front-back direction.

[0014] Figure 4 This is a top view of the absorbent article of the second embodiment as seen from the non-skin side.

[0015] Figure 5 This is a top view of the absorbent article of the third embodiment as seen from the non-skin side.

[0016] Figure 6 This is a perspective view of the absorbent article of the third embodiment in a rolled-up state along the front-back direction.

[0017] Figure 7 This is a diagram of the absorbent article of the third embodiment, which is fixed in place by the attached component. Detailed Implementation

[0018] Based on the description in this specification and the accompanying drawings, at least the following matters can be clarified.

[0019] An absorbent article of one technical solution has: a front-back direction; a width direction orthogonal to the front-back direction; a back panel facing the side opposite to the wearer's skin; and an adhesive portion disposed on the non-skin side of the back panel, wherein the non-skin side of the back panel also has a strap member disposed at a position inside the outer edge of the absorbent article, the strap member being configured to extend outwards from the outer edge of the absorbent article.

[0020] In this technical solution, after use, the user can roll up the absorbent article in a front-to-back direction, and then extend the strap member outward from the outer edge of the absorbent article. During use, the strap member is positioned on the non-skin side of the back sheet, inward from the outer edge of the absorbent article, so bodily fluids such as menstrual blood do not adhere to the strap member. After using the absorbent article, the user attaches the outwardly extending strap member to the adhesive portion provided on another part of the back sheet, thereby maintaining the rolled-up state of the absorbent article. Here, bodily fluids such as menstrual blood do not adhere to the strap member, thus preventing a decrease in the bonding strength between the strap member and the adhesive portion, thereby making it easy to maintain the absorbent article in a smaller rolled-up state.

[0021] Furthermore, the absorbent material is rolled up with the side containing menstrual blood or other bodily fluids facing inwards, so that no bodily fluids remain on the surface of the rolled-up absorbent material. This allows the user to cleanly dispose of the absorbent material after use.

[0022] Additionally, users can pre-place the used absorbent material in a small, nearby space while it is rolled up. Therefore, after attaching a new absorbent material to clothing such as underwear and putting on the garment, the user can dispose of the used absorbent material in a trash can. Alternatively, if no trash can for disposing of absorbent materials is nearby, the user can also put the rolled-up absorbent material in a bag and take it with them.

[0023] Furthermore, during the use of absorbent clothing, the strap components are located on the non-skin-facing side of the back panel and do not extend outward beyond the outer edge of the absorbent clothing, thus preventing the strap components from directly contacting the wearer's skin. Consequently, it reduces unnaturalness and discomfort during use.

[0024] According to a preferred embodiment, the absorbent article has at least two fold lines extending along the width direction, and the belt member is positioned either forward of the foremost fold line or backward of the rearmost fold line.

[0025] Depending on the user's habits, there are cases where the absorbent item is rolled up along a fold line extending in the width direction after use. In this case, an area that is forward of the foremost fold line or backward of the rearmost fold line among at least two fold lines is exposed on the surface of the rolled-up absorbent item and is located at the end side in the winding direction. The tape member is positioned at the exposed end side in this winding direction, so the user can easily identify the tape member and easily secure the tape member to the adhesive portion while the absorbent item is rolled up.

[0026] According to a preferred embodiment, the belt member is disposed within a range extending from the edge of the absorbent article in the front-back direction for a length equal to 1 / 3 of the length of the absorbent article in the front-back direction.

[0027] When considering covering bodily fluids adhering to the skin surface of an absorbent product and loosely rolling up the used absorbent product, the user sometimes rolls up the absorbent product with approximately one-third of its area facing inwards (in a three-fold or four-fold manner). In this case, the area extending one-third of the length of the absorbent product from its front-to-back edge in the front-to-back direction becomes the end area in the winding direction of the area exposed on the surface of the rolled-up absorbent product. The strap member is positioned at this end exposed portion in the winding direction, so the user can easily identify the strap member and easily secure it while the absorbent product is rolled up.

[0028] According to a preferred embodiment, the belt member is disposed within a range that is 15% of the length of the absorbent article in the front-back direction, starting from the edge of the absorbent article at the front-back direction.

[0029] When considering covering bodily fluids adhering to the skin surface of the absorbent material and tightly rolling up the used absorbent material, the area extending approximately 10% to 15% of the length of the absorbent material in the front-back direction from its edge is the end region in the winding direction of the area exposed on the surface of the rolled-up absorbent material. The strap member is positioned at this exposed end region in the winding direction, allowing the user to easily identify the strap member and easily secure it while the absorbent material is rolled up.

[0030] According to a preferred embodiment, the belt member is configured to extend to a position forward of the front edge of the absorbent article or to a position rearward of the rear edge of the absorbent article.

[0031] Users typically roll up the used absorbent item from the front or back in a front-to-back direction. The belt member is configured to extend forward of the front edge or backward of the rear edge of the absorbent item, allowing the user to extend the belt member in the winding direction to install it.

[0032] In addition, about 80% of users roll up the used absorbent item from the front. Therefore, it is more preferable that the strap member is configured to extend to a position further back than the rear edge of the absorbent item.

[0033] According to a preferred technical solution, the adhesive portion is disposed on an imaginary line obtained by extending the tape member along the front-back direction.

[0034] Therefore, when the tape member extends forward of the absorbent article or backward of the absorbent article, and is positioned straight along the rolled-up absorbent article, the adhesive portion adheres to the tape member. Thus, the user can easily maintain the rolled-up absorbent article without having to pull the tape member at an angle towards the adhesive portion.

[0035] According to a preferred embodiment, the adhesive portions are provided in a plurality of spaced-apart configurations in the width direction, and the width of the strip member in the width direction is greater than the width-apart spacing between the adhesive portions.

[0036] This prevents situations where the adhesive part is missing at the user's destination when pulling out the strap component. Therefore, the user can easily install the strap component onto the adhesive part.

[0037] According to a preferred embodiment, the absorbent article has a hip flap that bulges outward in the width direction at a position rearward of the area opposite to the wearer's excretory opening, and a strap member is provided on the hip flap, the strap member being configured to extend outward of the outer edge of the hip flap in the width direction.

[0038] The hip flap is located at the rear of the absorbent item. Approximately 80% of users roll up the used absorbent item from the front. As a result, the strap member is exposed on the surface of the rolled-up absorbent item. The user extends the strap member outwards in the width direction from the hip flap and attaches it to adhesive parts located elsewhere on the back panel, thereby maintaining the rolled-up state of the absorbent item.

[0039] Furthermore, the hip flaps bulge out along the width, so when the strap is attached to the adhesive part, the hip flaps cover the sides of the rolled-up absorbent material. This prevents bodily fluids from leaking from the sides of the rolled-up absorbent material. Additionally, because the hip flaps cover the sides of the rolled-up absorbent material, bodily fluids adhering to the skin-friendly side of the absorbent material are concealed, improving the feeling of cleanliness.

[0040] According to a preferred embodiment, the adhesive portions are spaced apart in the front-back direction, and the width of the belt member in the front-back direction is greater than the distance between the adhesive portions in the front-back direction.

[0041] This prevents situations where the adhesive part is missing at the user's destination when pulling out the strap component. Therefore, the user can easily install the strap component onto the adhesive part.

[0042] According to a preferred embodiment, at least a portion of the adhesive portion is located at a position further forward than the belt member.

[0043] There is an adhesive part located at the front of the strap member, so that when the user attaches the strap member that extends outward from the hip wing in the width direction to the adhesive part located at another position on the back panel, the absorbent item can be kept rolled up.

[0044] According to a preferred embodiment, at least a portion of the adhesive portion is provided in a range extending from the edge of one of the two edges of the absorbent article in the front-back direction, near the edge of the strip member, for a length of 2 / 3 of the length of the absorbent article in the front-back direction.

[0045] When loosely rolling up a used absorbent item, the user sometimes rolls it up with approximately one-third of the absorbent item facing inwards (in a three- or four-fold configuration). In this case, a length of two-thirds of the absorbent item's front-to-back length, starting from its edge, is exposed on the surface of the rolled-up absorbent item. An adhesive portion is positioned in this exposed area, allowing the user to easily attach the strap to it.

[0046] According to a preferred embodiment, at least a portion of the adhesive portion is provided in a range extending from the edge of one of the two edges of the absorbent article in the front-back direction, closer to the edge of the strip member, with a length of 4 / 5 of the length of the absorbent article in the front-back direction.

[0047] When a used absorbent item is tightly rolled up, approximately 20% to 30% of the length of the absorbent item in the front-to-back direction, starting from its edge, is exposed on the surface of the rolled-up absorbent item. An adhesive portion is positioned in this exposed area, allowing the user to easily attach the tape component to it.

[0048] According to a preferred embodiment, the strap member has a fixing portion that is fixed to the non-skin surface of the absorbent article, and the top end of the strap member in the extending direction faces the side opposite to the fixing portion.

[0049] When the belt member extends to a position further outward than the outer edge of the absorbent article, force is applied only to the fixing part of the belt member in the direction of extension. This minimizes the force applied to the fixing part, thus maintaining the fixing strength of the belt member.

[0050] According to a preferred technical solution, at least one of the surface of the strap member that contacts the back sheet and the surface of the back sheet that contacts the strap member is subjected to antistatic treatment.

[0051] This prevents the strap components from sticking to the back sheet due to static electricity. Consequently, when an absorbent item is rolled up, the strap components are more likely to float off the back sheet, making it easier for the user to grip the strap components for operation.

[0052] According to a preferred embodiment, the absorbent article has an absorbent body located on the skin side of the back sheet, and the strap member has a fixing portion fixed to the non-skin side of the absorbent article, at least a portion of which overlaps with the absorbent body in the thickness direction.

[0053] The area containing the absorbent becomes a region with particularly high stiffness within the absorbent article. The fixing part of the strap member overlaps with the absorbent in the thickness direction, so when the absorbent article is rolled up, the fixing part of the strap member, located in the region of high stiffness, bends stably together with the absorbent article. This stable bending of the fixing part of the strap member makes it easier for the free end of the strap member to rise from the back sheet. Consequently, the user can more easily grip the strap member for operation.

[0054] According to a preferred embodiment, the absorbent article has an absorbent body located on the skin side of the back sheet, and the strip member overlaps in the thickness direction with the embossed area formed on the absorbent body or the low unit area weight region of the absorbent body.

[0055] If the strap member overlaps with the embossed areas formed on the absorbent or the low-weight-per-unit-area regions of the absorbent in the thickness direction, a gap is easily formed between the strap member and the back sheet (absorbent). Therefore, after rolling up the absorbent, the strap member is more likely to float off the back sheet, and the user can more easily pinch the strap member for operation.

[0056] According to a preferred embodiment, in an absorbent article, the strap member has a fixing portion that is fixed to the non-skin surface of the absorbent article, and at least a region of the strap member other than the fixing portion is located in a position that does not overlap with the adhesive portion.

[0057] Therefore, after rolling up absorbent materials, the strap component easily floats up from the back panel. Consequently, the user can more easily pinch the non-fixed part of the strap component for operation.

[0058] The following description of the absorbent article, with reference to the accompanying drawings, illustrates an embodiment. The absorbent article may also be a sanitary napkin, panty liner, nursing pad, adult incontinence pad, fecal pad, or sweat pad. In particular, it is preferable that the absorbent article is used inside clothing such as underwear.

[0059] Furthermore, in the following accompanying drawings, the same or similar reference numerals are used to label the same or similar parts. However, the drawings are schematic, and it should be noted that the scale of each dimension may sometimes differ from reality. Therefore, the following explanation should be consulted to determine the specific dimensions, etc. In addition, there may be instances in the accompanying drawings where there are differences in dimensional relationships or scale between them.

[0060] (1) First Embodiment

[0061] Figure 1 This is a top view of the absorbent article of the first embodiment as seen from the skin side. Figure 2 This is a top view of the absorbent article of the first embodiment, viewed from the non-skin side. Here, "skin side" refers to the side that faces the wearer's skin during use. "Non-skin side" refers to the side that faces the opposite direction to the wearer's skin during use.

[0062] Absorbent materials have a front-to-back direction (L) and a width direction (W). The front-to-back direction (L) extends from the front (ventral side) to the back (rear side) of the wearer, or from the back to the front of the wearer. The width direction (W) is perpendicular to the front-to-back direction (L).

[0063] The absorbent article 10 has a surface sheet 20, a back sheet 22, and an absorbent body 30 between the surface sheet 20 and the back sheet 22. The surface sheet 20 faces the wearer's skin during use. The back sheet 22 faces the side opposite to the wearer's skin during use. The absorbent body 30 extends along the front-to-back direction L of the absorbent article.

[0064] The absorbent article 10 may also have wings 40 and hip wings 50. The wings 40 fold back towards the non-skin-covering side of the crotch area of ​​the garment during use. The hip wings 50 are portions that bulge out in the width direction W at a position further back than the wings 40. The hip wings 50 bulge out to a position outside the outer edge of the absorbent body 30 in the width direction W.

[0065] The absorbent article 10 has an outlet-facing region S1 that is opposite to the wearer's excretory opening (e.g., vaginal opening) during use. The outlet-facing region S1 is located in the wearer's crotch area, that is, between the wearer's legs, and corresponds to the area where the absorbent body 30 is located. Additionally, in the absorbent article 10 with wings 40, the outlet-facing region S1 is the area between the wings 40, and corresponds to the area where the absorbent body 30 is located.

[0066] like Figure 2 As shown, the absorbent article 10 has adhesive portions 42, 52, and 70 on the non-skin side of the back panel 22. Adhesive portions 42, 52, and 70 are areas where an adhesive is provided to secure the absorbent article 10 to the garment. The adhesive portions include a main body adhesive portion 70, wing adhesive portions 42, and protective wing adhesive portions 52.

[0067] The main adhesive portion 70 is provided in the region overlapping with the absorbent body 30 in the thickness direction of the absorbent article. Preferably, the main adhesive portion 70 extends continuously or intermittently from the area S1 opposite the discharge port toward the rear of the absorbent article 10. The main adhesive portion 70 extends in the front-rear direction L and is preferably provided in a plurality of spaced-apart portions in the width direction W.

[0068] Wing adhesive portion 42 is provided on wing portion 40. During use, wing portion 40 folds back towards the wearer's garment, and wing adhesive portion 42 is used to attach wing portion 40 to the non-skin side of the garment. Wing adhesive portion 52 is provided on hip wing 50.

[0069] The absorbent article 10 may also have at least two fold lines extending along the width direction W. Figure 1 , Figure 2 In the example shown, the absorbent article 10 has three fold lines F1 to F3. These fold lines F1 to F3 are used to fold the absorbent article when packaging it.

[0070] For the absorbent article 10, a strap member 60 is provided on the non-skin side of the back sheet 22, positioned inside the outer edge of the absorbent article 10. Therefore, when viewed from the skin side, the strap member 60 is hidden within the absorbent article 10.

[0071] The strap member 60 is configured to extend outward from the outer edge of the absorbent article 10. For example, the strap member 60 is preferably formed of a stretchable sheet. In this case, the wearer pulls the strap member 60, causing the strap member 60 to extend outward from the outer edge of the absorbent article 10.

[0072] As another example, the strap member 60 may also be formed from a sheet folded into a Z-shape. In this case, the wearer pulls on the top of the strap member 60, thereby unfolding the folded strap member 60, causing the strap member 60 to extend outward from the outer edge of the absorbent article 10.

[0073] The tape member 60 is a post-processing tape that can extend to the point of being mounted on the main adhesive portion 70 while the absorbent article 10 is rolled up. Furthermore, the tape member 60 can be made of any material that can be mounted on the main adhesive portion 70. Preferably, the tape member 60 is made of a material that is easier to adhere to the main adhesive portion 70 than the surface sheet 20. Alternatively, the tape member 60 may not contain an adhesive.

[0074] The strap member 60 has a fixing portion 62 that is fixed to the non-skin surface of the absorbent article 10, and the tip of the strap member 60 in the extending direction faces the side opposite to the fixing portion 62. In this case, when the strap member 60 is extended to a position further outward than the outer edge of the absorbent article 10, a force is applied only to the fixing portion 62 of the strap member 60 in the extending direction. As a result, the force applied to the fixing portion 62 can be minimized, thus maintaining the fixing strength of the strap member 60.

[0075] After using the absorbent article 10, the user rolls it up in the front-to-back direction L. Then, the strap member 60 extends outward from the outer edge of the absorbent article 10 (see reference). Figure 3 During use, the strap member 60 is positioned on the non-skin side of the back cover 22, closer to the outer edge of the absorbent article 10, so bodily fluids such as menstrual blood do not adhere to the strap member 60. After using the absorbent article 10, the user attaches the outwardly extending strap member 60 to the adhesive portion 70 provided on other parts of the back cover 22, thereby maintaining the absorbent article 10 in a rolled-up state. Here, since bodily fluids such as menstrual blood do not adhere to the strap member 60, the bonding strength between the strap member 60 and the adhesive portion 70 is prevented from decreasing, thus making it easy to maintain the absorbent article 10 in a smaller rolled-up state.

[0076] Furthermore, since the absorbent article 10 is rolled up with the side containing menstrual blood or other bodily fluids facing inwards, no bodily fluids remain on the surface of the rolled-up absorbent article 10. This allows the user to cleanly dispose of the used absorbent article 10.

[0077] Furthermore, users can pre-place the used absorbent material 10 in a small, nearby location while it is rolled up. Therefore, after attaching a new absorbent material 10 to clothing such as underwear and putting on the underwear or clothing, the user can dispose of the used absorbent material 10 in a trash can. Alternatively, if there is no trash can nearby for disposing of the absorbent material 10, the user can also put the rolled-up absorbent material 10 in a bag and take it with them.

[0078] Furthermore, during the use of the absorbent article 10, the strap member 60 is located on the non-skin side of the back panel 22 and does not extend outward beyond the outer edge of the absorbent article 10, so the strap member 60 will not directly contact the wearer's skin. Therefore, it can reduce the unnatural feeling and discomfort during use.

[0079] Preferably, the tape member 60 is configured to extend to a position further rearward than the rear edge of the absorbent article 10. Approximately 80% of users roll up the used absorbent article 10 from the front. By configuring the tape member 60 to extend to a position further rearward than the rear edge of the absorbent article 10, many users can extend the tape member 60 along the winding direction and attach the tape member 60 to the main body adhesive portion 70.

[0080] Preferably, the tape member 60 is positioned further back than the rearmost fold line F3 among the fold lines F1 to F3. Depending on the user's habits, there are cases where the absorbent article 10 is rolled up after use, starting with the fold lines F1 to F3 extending along the width direction W. In this case, at least the area further back than the rearmost fold line F3 among the three fold lines is exposed on the surface of the rolled-up absorbent article 10, and is located at the end side in the winding direction. The tape member 60 is positioned at the end side exposed in this winding direction, so the user can easily identify the tape member 60 and can easily secure the tape member 60 to the main body adhesive portion 70 while the absorbent article is rolled up.

[0081] Preferably, the tape member 60 is located within a range extending from the rear edge E2 in the longitudinal direction L of the absorbent article, with a length equal to 1 / 3 of the length of the absorbent article in the longitudinal direction L. Users sometimes loosely roll up the used absorbent article 10 to avoid contact with bodily fluids adhering to the surface sheet 20 of the absorbent article. When loosely rolling up the used absorbent article 10 to cover bodily fluids adhering to the skin surface, users sometimes roll up the absorbent article with approximately 1 / 3 of its area positioned inside (in a three-fold configuration). In this case, the area extending from the rear edge E2 of the absorbent article 10, with a length equal to 1 / 3 of its length in the longitudinal direction L, becomes the end area in the winding direction of the area exposed on the surface of the rolled-up absorbent article 10. Since the tape member 60 is located at the exposed end side in the winding direction, the user can easily identify the tape member 60 and can easily fix the tape member 60 to the main body adhesive portion 70 while the absorbent article 10 is rolled up.

[0082] The length of the tape member 60 from its rear edge in the longitudinal direction L of the absorbent article 10 is preferably within 15%, more preferably 10%, of the length of the absorbent article in the longitudinal direction. Considering the need to cover bodily fluids adhering to the skin surface of the absorbent article 10 and to tightly roll up the used absorbent article 10, a region with a length of approximately 10% to 15% of the length of the absorbent article 10 in the longitudinal direction L from its rear edge E2 forms the end-side region in the winding direction of the area exposed on the surface of the rolled-up absorbent article 10. Since the tape member 60 is positioned at the end-side exposed portion in this winding direction, the user can easily identify the tape member 60 and can easily secure the tape member 60 to the main adhesive portion 70 while the absorbent article 10 is rolled up.

[0083] Preferably, the main adhesive portion 70 is provided on an imaginary line obtained by extending the strap member 60 in the front-rear direction L. Thus, when the strap member 60 extends to a position further rearward than the rear edge E2 of the absorbent article and is positioned straight along the rolled-up absorbent article 10, the main adhesive portion 70 adheres to the strap member 60. Therefore, the user can easily maintain the rolled-up state of the absorbent article 10 without having to pull the strap member 60 at an angle towards the main adhesive portion 70.

[0084] Preferably, the main adhesive portions 70 are provided at intervals in the width direction W. In this case, it is preferable that the width W1 of the strap member 60 in the width direction W is larger than the interval W2 between the main adhesive portions 70 in the width direction W. This prevents the main adhesive portions 70 from being absent at the destination where the user pulls out the strap member 60. Therefore, the user can easily install the strap member 60 onto the adhesive portions 70.

[0085] Furthermore, when the main adhesive portion 70 has three or more portions in the width direction W, the width W1 of the strip member 60 in the width direction W can be greater than the size of the interval located on the imaginary line obtained by extending the strip member 60 or the interval closest to the imaginary line among the multiple intervals between the main adhesive portions 70. Alternatively, the width W1 of the strip member 60 in the width direction W can be greater than the largest interval among the intervals between the main adhesive portions 70.

[0086] Preferably, at least a portion of the main adhesive portion 70 is provided in a range extending from the edge of the absorbent article 10 in the front-rear direction L, near the edge of the tape member 60, for a length of 2 / 3 of the length of the absorbent article 10 in the front-rear direction L. In this embodiment, at least a portion of the main adhesive portion 70 is provided in a range extending from the rear edge E2 for a length of 2 / 3 of the length of the absorbent article 10 in the front-rear direction L. When the used absorbent article 10 is loosely rolled up, the user sometimes rolls up the absorbent article with approximately 1 / 3 of the area of ​​the absorbent article 10 positioned inside (in a three-fold or four-fold manner). In this case, a range extending from the rear edge of the absorbent article 10 in the front-rear direction L for a length of 2 / 3 of the length of the absorbent article 10 in the front-rear direction L is exposed on the surface of the rolled-up absorbent article 10. The main adhesive portion 70 is provided in this exposed area, so the user can easily attach the tape member 60 to the main adhesive portion 70.

[0087] More preferably, at least a portion of the main adhesive portion 70 is provided in a range extending from the edge near the tape member 60 on one of the two edges of the absorbent article 10 in the front-rear direction L, with a length of 4 / 5 of the length of the absorbent article 10 in the front-rear direction L. In this embodiment, at least a portion of the main adhesive portion 70 is provided in a range extending from the rear side edge E2, with a length of 4 / 5 of the length of the absorbent article 10 in the front-rear direction L. When the used absorbent article is tightly rolled up, a range extending from the edge of the absorbent article 10 in the front-rear direction L, with a length of approximately 20% to 30% of the length of the absorbent article 10 in the front-rear direction L, is exposed on the surface of the rolled-up absorbent article 10. In this embodiment, a range extending from the rear side edge E2, with a length of approximately 20% to 30% of the length of the absorbent article 10 in the front-rear direction L, is exposed on the surface of the rolled-up absorbent article 10. The main adhesive portion 70 is provided in this exposed area, so that the user can easily attach the tape member 60 to the main adhesive portion 70.

[0088] Both the back sheet 22 and the strap member 60 are preferably formed of a film, such as a synthetic resin film. Furthermore, it is preferable that at least one of the surface of the strap member 60 in contact with the back sheet 22 and the surface of the back sheet 22 in contact with the strap member 60 is treated with an antistatic agent. The antistatic treatment is preferably a surface treatment such as corona treatment or embossing. Sometimes, static electricity can cause the strap member 60 to stick to the back sheet 22. The antistatic treatment can suppress this sticking. Therefore, after rolling up the absorbent article 10, the strap member 60 is more likely to float off the back sheet 22, and the user can more easily grasp the strap member 60 for operation.

[0089] Preferably, at least a portion of the fixing portion 62 of the strap member 60 overlaps with the absorbent body 30 in the thickness direction. The area where the absorbent body 30 is located becomes a region with particularly high stiffness in the absorbent article 10. Since the fixing portion 62 of the strap member 60 overlaps with the absorbent body 30 in the thickness direction, after the absorbent article 10 is rolled up, the fixing portion 62 of the strap member 60 located in the region with high stiffness bends stably together with the absorbent article 10. In this way, the fixing portion 62 of the strap member 60 bends stably, making it easier for the free end of the strap member 60 to float from the back sheet 22. As a result, the user can more easily pinch the strap member 60 for operation.

[0090] Preferably, at least the area of ​​the strap member 60, excluding the fixing portion 62, is positioned in a location that does not overlap with the adhesive portions 42, 52, and 70. This allows the strap member 60 to easily rise from the backing sheet 22 after the absorbent article 10 is rolled up. Consequently, the user can more easily grasp the strap member 60 for operation.

[0091] The absorbent body 30 may also have embossed patterns (compression sections) formed thereon. Additionally, the absorbent body 30 may have a low weight-per-unit area region where the weight per unit area is lower than that of the surrounding absorbent bodies 30. In this case, it is preferable that the strap member 60 overlaps with the embossed pattern formed on the absorbent body 30 or the low weight-per-unit area region provided on the absorbent body 30 in the thickness direction. If the strap member 60 overlaps with the embossed pattern formed on the absorbent body 30 or the low weight-per-unit area region provided on the absorbent body 30 in the thickness direction, it is easier to form a gap between the strap member 60 and the backing sheet 22 (absorbent body 30). Therefore, after rolling up the absorbent article 10, the strap member 60 is more likely to float from the backing sheet 22, and the user can more easily pinch the strap member 60 for operation.

[0092] (2) Second implementation method

[0093] Next, refer to Figure 4 The absorbent article of the second embodiment is described. Figure 4 This is a top view of the absorbent article of the second embodiment as seen from the non-skin side.

[0094] Furthermore, the same reference numerals are used for structures identical to those in the first embodiment, and their descriptions are sometimes omitted. The following details the structures that differ from those in the first embodiment. In the second embodiment, the position of the belt member 60 differs from that in the first embodiment. In the second embodiment, the belt member 60 is located in front of the absorbent article 10. The belt member 60 is configured to extend forward of the absorbent article's front edge E1.

[0095] Preferably, the tape member 60 is positioned forward of the foremost of the fold lines F1 to F3. Approximately 30% of users roll up the used absorbent article 10 from the front. Additionally, depending on user habits, there are cases where users roll up the used absorbent article 10 along fold lines F1 to F3 extending in the width direction W. In this case, the area forward of the foremost fold line F1 is exposed on the surface of the rolled-up absorbent article 10 and is located at the end in the winding direction. Since the tape member 60 is positioned at the end exposed in this winding direction, the user can easily identify the tape member 60 and can easily secure the tape member 60 to the main adhesive portion 70 while the absorbent article 10 is rolled up.

[0096] As described above, if we consider the case where the absorbent article 10 is rolled up from the front, then regarding the position of the strap member 60 and the positional relationship between the strap member 60 and the main adhesive portion 70, it is preferable to set the structure obtained by reversing the state described in the first embodiment.

[0097] That is, preferably, the length of the strip member 60 from its front edge in the front-rear direction L of the self-absorbent article 10 is within 1 / 3 of the length of the absorbent article in the front-rear direction L. More preferably, the length of the strip member 60 from its front edge E1 in the front-rear direction L of the self-absorbent article is within 15% of the length of the absorbent article 10 in the front-rear direction L. Even more preferably, the length is within 10% of the length of the absorbent article 10.

[0098] Preferably, at least a portion of the main adhesive portion 70 is provided in a range extending from the front edge E1 in the front-rear direction L of the self-absorbent article, with a length of 2 / 3 of the length of the absorbent article 10 in the front-rear direction L. More preferably, at least a portion of the main adhesive portion 70 is provided in a range extending from the front edge E1 of the absorbent article 10, with a length of 4 / 5 of the length of the absorbent article 10 in the front-rear direction L.

[0099] (3) Third implementation

[0100] Next, refer to Figures 5-7 To illustrate the absorbent article of the third embodiment. Figure 5 This is a top view of the absorbent article of the third embodiment as seen from the non-skin side. Figure 6 This is a perspective view of the absorbent article of the third embodiment in a rolled-up state along the front-back direction. Figure 7 This is a diagram of the absorbent article of the third embodiment, which is fixed in place by the attached component.

[0101] Furthermore, the same reference numerals are used to refer to structures identical to those in the first embodiment, and their descriptions are sometimes omitted. Structures different from those in the first embodiment will be described in detail below.

[0102] In the third embodiment, the position of the strap member 60 differs from that in the first embodiment. In the third embodiment, the strap member 60 is provided on the hip guard 50. The strap member 60 is configured to extend outward from the outer edge in the width direction W of the hip guard 50.

[0103] The hip wing 50 is located at the rear of the absorbent material 10. Here, approximately 80% of users roll up the used absorbent material 10 from the front. As a result, the strap member 60 is exposed on the surface of the rolled-up absorbent material 10. Additionally, in Figure 6 The image shows the state after the strap member 60 has been stretched. The user extends the strap member 60 outward from the hip guard 50 in the width direction W (see reference). Figure 6 And attach the tape member 60 to the adhesive portion provided at other locations on the back sheet 22, thereby maintaining the state in which the absorbent article is rolled up (see reference). Figure 7 ).

[0104] Additionally, the hip flap 50 is a portion that bulges out in the width direction (W), so when the strap member 60 is attached to the adhesive part, the hip flap 50 will cover the side of the rolled-up absorbent material 10 (see reference). Figure 7 This prevents bodily fluids from leaking from the sides of the rolled-up absorbent item 10. Furthermore, since the hip wings 50 cover the sides of the rolled-up absorbent item 10, they can cover bodily fluids adhering to the skin side of the absorbent item 10, improving the feeling of cleanliness.

[0105] In the third embodiment, it is preferable that the main adhesive portions 70 are spaced apart in the front-rear direction L. In this case, it is preferable that the width W1 of the strap member 60 in the front-rear direction L is larger than the front-rear distance W3 between the main adhesive portions 70. This prevents the main adhesive portions 70 from being absent at the destination where the user pulls out the strap member 60. Therefore, the user can easily attach the strap member 60 to the main adhesive portions 70.

[0106] Furthermore, when there are multiple intervals in the front-rear direction L of the main adhesive portion 70, it is more preferable that the width W1 of the strip member 60 is larger than the largest interval among the multiple intervals in the front-rear direction L.

[0107] Preferably, at least a portion of the main adhesive portion 70 is located at a position further forward than the strap member 60. Because the main adhesive portion 70 is located further forward than the strap member 60, the user can maintain the rolled-up state of the absorbent article 10 after attaching the strap member 60, which extends outward from the hip wing 50 in the width direction W, to the main adhesive portion 70 located at other positions on the back panel 22 (other positions in the front-rear direction L).

[0108] The present invention has been described in detail above using the embodiments described above. However, it will be clear to those skilled in the art that the present invention is not limited to the embodiments described in this specification. For the purposes of this invention, modifications and variations can be implemented without departing from the spirit and scope of the invention as defined by the claims. Therefore, the purpose of this specification is illustrative and it is not intended to be restrictive in any way.

[0109] For example, please note that the structures and features described in the above embodiments can be combined and / or substituted within feasible limits.

[0110] Furthermore, in the above embodiment, the case where the strap member 60 is attached to the main body adhesive portion 70 after using the absorbent article 10 has been described. However, it is not limited to this; as long as the absorbent article 10 can be kept rolled up, the strap member 60 can also be attached to the wing adhesive portion 42 and the wing adhesive portion 52. Also note that the absorbent article 10 is a relatively soft article, so even if the adhesive portions 42, 52, and 70 are not necessarily located at the position reached by the strap member 60 extending straight out, the strap member 60 can still be attached to the adhesive portions 42, 52, and 70.

[0111] In addition, the entire contents of Japanese Patent Application No. 2016-126082, filed on June 24, 2016, are incorporated herein by reference.

[0112] Industrial availability

[0113] Absorbent materials with the above-described form can maintain their rolled-up state after use and reduce the unnatural feeling and discomfort during use.

[0114] Explanation of reference numerals in the attached figures

[0115] 10 Absorbent material; 20 Surface sheet; 22 Back sheet; 30 Absorbent body; 40 Wings; 42 Wing adhesive parts; 50 Hip protector wing; 52 Wing adhesive parts; 60 Strap component; 62 Fixing part; 70 Main body adhesive part; E1 Front edge of absorbent material; E2 Rear edge of absorbent material; F1 First fold line; F2 Second fold line; F3 Third fold line; S1 Relative area of ​​discharge port; L Front-rear direction; W Width direction; W1 Width of strap component; W2 Spacing between main body adhesive parts in the width direction; W3 Spacing between main body adhesive parts in the front-rear direction.

Claims

1. An absorbent article having: Forward and backward directions; The width direction is orthogonal to the front-back direction; The back panel faces the side opposite to the wearer's skin; as well as An adhesive portion is provided on the non-skin-facing side of the back sheet, wherein, The non-skin-facing side of the back sheet also has a strap member positioned inside the outer edge of the absorbent article. The belt member is configured to extend to a position outside the outer edge of the absorbent article.

2. The absorbent article according to claim 1, wherein, The absorbent article has at least two fold lines extending along the width direction. The belt member is positioned either in front of the foremost fold line or in rearward position than the rearmost fold line.

3. The absorbent article according to claim 1 or 2, wherein, The belt member is located within a range that extends from the edge of the absorbent article in the front-back direction and has a length of 1 / 3 of the length of the absorbent article in the front-back direction.

4. The absorbent article according to claim 3, wherein, The belt member is located within a range that is 15% of the length of the absorbent article in the front-back direction, starting from the edge of the absorbent article at the front-back direction.

5. The absorbent article according to any one of claims 1 to 4, wherein, The belt member is configured to extend to a position forward of the front edge of the absorbent article or to a position rearward of the rear edge of the absorbent article.

6. The absorbent article according to claim 5, wherein, The adhesive portion is disposed on an imaginary line obtained by extending the belt member along the front-back direction.

7. The absorbent article according to claim 5 or 6, wherein, The adhesive portion is provided in multiple portions spaced apart in the width direction. The width of the tape member in the width direction is greater than the width-direction spacing between the adhesive portions.

8. The absorbent article according to any one of claims 1 to 4, wherein, The absorbent garment has a hip flap that bulges outward in the width direction at a position located behind the area opposite the wearer's excretory opening. The strap component is located on the hip guard wing. The strap member is configured to extend outward from the outer edge in the width direction of the hip guard.

9. The absorbent article according to claim 8, wherein, The adhesive portions are spaced apart in the front-to-back direction. The width of the belt member in the front-back direction is greater than the front-back spacing between the adhesive portions.

10. The absorbent article according to claim 8 or 9, wherein, At least a portion of the adhesive portion is located at a position further forward than the belt member.

11. The absorbent article according to any one of claims 1 to 10, wherein, At least a portion of the adhesive portion is provided in a range extending from the edge of the absorbent article near the belt member in the front-back direction, with a length of 2 / 3 of the length of the absorbent article in the front-back direction.

12. The absorbent article according to claim 11, wherein, At least a portion of the adhesive portion is provided in a range extending from the edge of the absorbent article near the tape member in the front-back direction, with a length of 4 / 5 of the length of the absorbent article in the front-back direction.

13. The absorbent article according to any one of claims 1 to 12, wherein, The belt member has a fixing portion that is fixed to the non-skin surface of the absorbent article. The top end of the belt member in the protruding direction faces the side opposite to the fixing part.

14. The absorbent article according to any one of claims 1 to 13, wherein, At least one of the surface of the strap member that contacts the back sheet and the surface of the back sheet that contacts the strap member is subjected to antistatic treatment.

15. The absorbent article according to any one of claims 1 to 14, wherein, The absorbent article has an absorbent body located on the skin-side surface, closer to the back sheet. The belt member has a fixing portion that is fixed to the non-skin surface of the absorbent article. At least a portion of the fixing part overlaps with the absorber in the thickness direction.

16. The absorbent article according to any one of claims 1 to 15, wherein, The absorbent article has an absorbent body located on the skin-side surface, closer to the back sheet. The strip member overlaps in the thickness direction with the embossed area formed on the absorber or the low unit area weight region provided on the absorber.

17. The absorbent article according to any one of claims 1 to 16, wherein, The belt member has a fixing portion that is fixed to the non-skin surface of the absorbent article. At least the area of ​​the strap member other than the fixing part is located in a position that does not overlap with the adhesive part.

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