JP5697532B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article, and more particularly, to a pants-type diaper that can be worn by hooking a hand or a finger.

  Conventionally, a pants-type diaper is known as an absorbent article in which an opening for hooking a hand or a finger is formed in a chassis having a front waistline region, a back waistline region, and a crotch region and can be worn by hooking a hand or the like ( For example, see Patent Document 1). According to such an absorbent article, since the wearer and the caregiver can hook the hand or finger on the opening and wear it, the absorbent article can be easily pulled up and can be easily worn.

JP-T-2007-521929 (FIG. 7B, etc.)

  However, the applicant has found the following problems with the above-described absorbent article.

  In the absorbent article described in Patent Literature 1, an opening having a size capable of inserting a hand or a finger is formed. When the wearer wears this absorbent article, the wearer's skin is exposed through the opening. Since the entire waist circumference of the wearer is not covered, the wearer may feel uncomfortable and the wearing feeling may deteriorate.

  Then, this invention is made | formed in view of the above-mentioned subject, and it aims at providing the absorbent article which a wearer etc. can pull up easily, suppressing the deterioration of a wearer's wearing feeling. And

  An absorbent article according to the present invention (absorbent article 1) has a front-rear direction extending to the wearer's front side and rear side of the wearer, and a width direction perpendicular to the front-rear direction, and a front waistline region (front Absorbent article comprising a chassis (chassis 3) having a waistline region S10A), a back waistline region (rear waistline region S10B), and a crotch region (inseam region S20) interposed between the front waistline region and the back waistline region. The chassis includes a chassis main body (chassis main body 31) extending from the front waistline region to the rear waistline region via the crotch region, and both side end portions (front end portions 31A, 31A, A side panel (side panel 41) that is joined to each of the rear end portions 31B) and disposed between the front waistline region and the rear waistline region, and joined to the side panel. And an opening (opening 40) into which a finger can be inserted is formed in the side panel, and the bonding sheet is formed on the side panel. It is arranged so as to cover the opening, and is bonded to the side panel at least around the opening, and the bonding sheet is cut by being pressed by a finger inserted into the opening. Is the gist.

  According to the present invention, since the opening is formed in the side panel disposed between the front waistline region and the back waistline region, the wearer or the like pulls the absorbent article by hooking the finger to the opening. be able to. Furthermore, in the state before pulling upward through the opening, the opening is covered with the bonding sheet, so that the skin of the wearer is prevented from being exposed through the opening and the wearing feeling is prevented from deteriorating. can do. Moreover, when it is going to pull up by hooking a finger | toe to an opening part etc., an opening can be open | released by cut | disconnecting a joining sheet | seat, and an absorbent article can be pulled up by hooking a finger | toe to an opening part etc.

It is an appearance perspective view of an absorptive article concerning a 1st embodiment. It is a side view of the absorptive article concerning a 1st embodiment. It is the schematic cross section which showed typically the AA cross section of FIG. It is the schematic cross section which showed the BB cross section of FIG. 2 typically. It is a side view of the absorptive article concerning a 2nd embodiment. It is the schematic cross section which showed CC section of FIG. 5 typically. It is a schematic cross section of the absorbent article which concerns on 3rd Embodiment.

(First embodiment)
With reference to FIGS. 1-4, the absorbent article 1 which concerns on the 1st Embodiment of this invention is demonstrated. The absorbent article 1 according to the present embodiment is a pants-type diaper or a water-absorbing underwear.

  In FIG. 1, the external appearance perspective view of the absorbent article 1 which concerns on this embodiment is shown. As shown in FIG. 1, the absorbent article 1 according to this embodiment includes a chassis 3 and an absorbent body 2. In FIG. 1, the front-rear direction, the width direction, and the vertical direction of the diaper 1 are indicated by double-headed arrows X, Y, and Z that are orthogonal to each other. The diaper front-rear direction X, the width direction Y, and the up-down direction Z are directions in a state where the wearer wears the absorbent article. The width direction is a direction along the left-right direction.

  Specifically, the absorbent body 2 includes an absorbent body-side topsheet that is a liquid-permeable sheet that contacts the skin of the wearer, an absorbent core, and an absorbent body that is a liquid-impermeable sheet. And a back seat.

  The absorbent body-side top sheet may be made of a hydrophilic non-woven fabric made of fibers such as polyolefin or polyethylene terephthalate (PET), and manufactured by a manufacturing method such as spunbond or air-through. What consists of waterproof films, such as polyethylene (PE), can be used for an absorber main body side backsheet.

For example, the absorber body-side top sheet is a 25 g / m ² air-through nonwoven fabric, and the absorber body-side back sheet is a 22 g / m ² moisture-permeable polyethylene film.

The absorbent core is produced by, for example, packaging a mixture of pulverized pulp (for example, 200 g / m ² ) or a superabsorbent polymer (for example, 200 g / m ² ) with a packaging sheet.

The packaging sheet can be made of a hydrophilic nonwoven fabric made of fibers such as polyolefin or polyethylene terephthalate, and can be produced by a production method such as spunbond or air-through. For example, the packaging sheet may be composed of a 13 g / m ² SMS nonwoven fabric or a tissue.

The absorber main body side top sheet, the absorber main body side back sheet, and the packaging sheet are bonded to each other by an adhesive. As the adhesive, any one of a hot melt adhesive, an acrylic adhesive, and a rubber adhesive can be used. For example, the basis weight of the hot melt adhesive is 1.5 to 10 g / m ^2. It is. As a method for applying the hot melt adhesive, in addition to spiral coating, a slot coat, a control seam, a bead, a curtain coater, or the like may be used.

  In addition, leakage preventing walls are provided on both side portions of the absorbent body 2 in the longitudinal direction. That is, the leak-proof wall is bonded to both side portions in the width direction of the absorber body-side backsheet.

  1 and 2, the chassis 3 includes a front waistline region S10A corresponding to the wearer's front waistline, a rear waistline region S10B corresponding to the back waistline, a front waistline region S10A, and a back waistline region S10B. A chassis main body 31 having a crotch region S20 interposed between the front end portion 31A and the rear end portion 31B in the lateral direction Y of the chassis main body 31, and a front waistline region S10A and a rear waistline region S10B. Side panel 41 disposed between the two.

  Here, the absorbent body 2 is provided on the skin contact surface side of the absorbent article 1 of the chassis 3 from the crotch region S20 to the front waistline region S10A and the back waistline region S10B. In the front waistline region S10A and the back waistline region S10B, the absorbent body 2 is provided in the central region in the width direction Y.

The chassis body 31 is made of, for example, an SMS nonwoven fabric made of polypropylene (PP). The basis weight of the chassis main body 31 is preferably 11 to 30 g / m ² . More preferably, 15-17 g / m ² is good. Moreover, in the chassis main body 31 comprised with two sheets of nonwoven fabrics, it is preferable that the fabric weight of two sheets of nonwoven fabrics is 30-35 g / m < ² >. The nonwoven fabric inside the chassis main body 31 constituted by two nonwoven fabrics is, for example, an SMS nonwoven fabric, and the outer nonwoven fabric is a spunbond nonwoven fabric or an air-through nonwoven fabric.

  A waist elastic member 91, a waist elastic member 92, and a leg elastic member (not shown) are held in the chassis body 31 in an expanded state. Therefore, the chassis main body 31 can be expanded and contracted. For the waist elastic member 91 and the waist elastic member 92, natural rubber, synthetic rubber, spandex or the like can be used, and the expansion ratio is preferably 1.3 to 4.0 times (in the case of spandex, the thickness thereof). Is preferably 300 to 1300 dtex).

  The absorbent article 1 has a side panel 41 corresponding to the side of the waist of the wearer. The side panel 41 has a front end 41A joined to the front end 31A of the chassis main body 31 in the front waistline region S10A and a rear end connected to the rear end 31B of the chassis main body 31 in the rear waistline region S10B. Part 41B.

  A front end 41A of the side panel 41 is disposed in front of the front end 31A of the front waistline region S10A of the chassis main body 31. Further, the rear end portion 41B of the side panel 41 is disposed behind the rear end portion 31B of the rear waistline region S10B of the chassis main body 31. That is, both side ends of the side panel 41 and both side ends of the chassis main body 31 are overlapped and bonded to each other. The chassis main body 31 and the side panel 41 are bonded by a hot melt adhesive 60.

  The chassis main body 31 and the side panel 41 may be bonded by sonic sealing, thermal bonding, pressure bonding, other adhesives, cohesive bonding, sewing, self-bonding, or the like. Further, when the chassis body 31 and the side panel 41 are bonded by an adhesive such as a hot-melt adhesive, the chassis body 31 and the side panel 41 are considered in consideration of the adhesive protruding to the periphery. It is desirable to apply the adhesive to an area smaller than the area where the two overlap. Specifically, the adhesive may be applied to a region that is 3 mm to 20 mm inside in the front-rear direction and 0 mm to 2 mm inside the region where the chassis main body 31 and the side panel 41 overlap. desirable. Moreover, as for the width | variety (length along the front-back direction) which apply | coats an adhesive agent, 5-30 mm is desirable. In the present embodiment, both end portions in the front-rear direction of the side panel 41 overlap with the chassis main body 31, and a region inside by 5 mm from the overlapped region is bonded to the chassis main body 31 by the hot melt adhesive 60. Has been.

  Further, a waist elastic member 91 and a waist elastic member 92 are disposed at the front end 31A and the rear end 31B of the chassis main body 31. However, in order to prevent wrinkles and the like from being generated on the side panel 41 by the elastic member, it is desirable to process so that the elastic force does not act.

  An opening 40 is formed in the side panel 41. The opening 40 is formed in the side panel 41 so that the side panel 41 is partially cut out (cut out). The opening 40 is configured so that at least the hand or finger of the wearer or caregiver is caught.

  The opening 40 is formed in both the left and right side panels 41. Therefore, a wearer etc. can grasp the part corresponding to both sides of a wearer's waist, and can pull up upwards, and can pull up front waist area S10A and back waist area S10B simultaneously. In addition, the length of the opening part 40 needs the length which can insert fingers, such as a wearer, at least. The opening according to the present embodiment has a vertical length of 20 mm and a horizontal length of 70 mm.

  A bonding sheet 42 is provided on the skin contact surface side of the side panel 41 so as to cover the opening 40. The joining sheet 42 according to the present embodiment has a vertical length of 50 mm, which is the vertical direction, and a horizontal length of 90 mm, which is the front-rear direction. The joining sheet 42 is joined to the side panel 41 at least around the opening 40. The bonding sheet 42 and the side panel 41 are bonded by, for example, a hot-melt adhesive 60, but the bonding sheet 42 and the side panel 41 are sonic sealed, thermal bonding, pressure bonding, other adhesives or They may be joined by cohesive bonding, suturing, self-bonding, or the like.

  The adhesive region between the joining sheet and the side panel desirably has a width of 20 mm or more from the viewpoint of securing adhesive strength. Moreover, when the area | region with which a joining sheet | seat and a side panel overlap is comparatively large, in order to join the whole area | region which overlaps without floating a joining sheet | seat and a side panel, an adhesion | attachment area | region has a width | variety of 20 mm or more. It is desirable to provide in the vicinity of the opening.

  Further, in the present embodiment, the bonding sheet 42 is bonded to the side panel 41 on the entire surface other than the periphery of the opening 40 as well as the periphery of the opening 40. In addition, the joining sheet | seat 42 should just be arrange | positioned so that the opening part 40 of the side part panel 41 may be covered at least, and should just be comprised larger than the dimension of the opening part 40. FIG.

  By joining the joining sheet 42 to the side panel 41, the joining sheet 42 can increase the rigidity around the opening and suppress deformation around the opening. The periphery of the opening is easily deformed because a force is applied when the absorbent article 1 is pulled up. If the side panel 41 is deformed, the absorbent article 1 may not be able to be pulled straight upward. However, by suppressing the deformation of the side panel 41, the pulling force can be easily transmitted to the side panel 41, and the pulling property can be improved. Moreover, it can suppress that the circumference | surroundings of an opening part fracture | rupture at the time of use by raising the rigidity around the opening part of the side panel 41. FIG.

  The breaking strength of the joining sheet 42 is configured to be lower than the breaking strength of the side panel 41, specifically 20N or less, more preferably 15N or less. A perforation 42 </ b> Y as a cutting portion formed through the bonding sheet 42 is formed in a region overlapping the opening 40 of the bonding sheet 42. The joining sheet 42 is pressed with a finger or the like. It is comprised so that it may cut | disconnect along the perforation 42Y. By forming the perforation 42Y, for example, even a wearer with relatively weak force can easily cut the joining sheet 42.

  In a state before the bonding sheet 42 is cut, the opening 40 of the side panel 41 is closed by the bonding sheet 42. On the other hand, when pulling up the absorbent article by hooking a finger or the like on the opening 40 during use, the bonding sheet 42 that closes the opening 40 is pressed and cut by the finger or the like, thereby cutting the opening 40 and the cutting portion of the bonding sheet. It is possible to pull up the diaper by hooking a finger or the like on it. Moreover, the wearer who does not need to pull up via the opening part 40 etc. does not need to cut | disconnect the joining sheet 42, and can maintain the state by which the opening part 40 was obstruct | occluded. Furthermore, a wearer etc. can cut | disconnect a joining sheet | seat according to the physical condition and state at the time of use (a state where a caregiver exists, or a state where the wearer pulls up himself) to form an opening. Moreover, although the opening part is provided in both the right and left side panels, a wearer etc. can pull up using only a required opening part among right and left opening parts.

  Further, the bonding strength between the bonding sheet 42 and the side panel 41 is configured to be higher than the breaking strength of the bonding sheet 42. Specifically, the bonding strength between the side panel 41 and the bonding sheet 42 is desirably 25 N or more. Therefore, when the joining sheet 42 is pressed and broken by a finger or the like, it is possible to prevent the joining sheet 42 and the side panel 41 from being separated before the joining sheet 42 is cut. The bonding strength between the side panel 41 and the chassis main body 31 is configured to be higher than the bonding strength between the bonding sheet 42 and the side panel 41 and is 25 N or more in the present embodiment.

  A masking sheet 43 is provided on the skin contact surface side of the bonding sheet 42 so as to cover the opening 40. The joining sheet 42 according to the present embodiment has a longitudinal length of 60 mm and a transverse length of 80 mm. By providing the masking sheet 43, it is possible to prevent the skin of the wearer from being exposed through the opening 40 and the cut portion even when the bonding sheet 42 is cut. In addition, the masking sheet 43 should just be arrange | positioned so that the opening part 40 of the side panel 41 may be covered at least, and should just be comprised larger than the dimension of the opening part 40. FIG.

  Further, the masking sheet is bonded to the bonding sheet through the hot melt adhesive 60 at the shaded portion shown in FIG. The upper end portion of the masking sheet 43 is not bonded to the bonding sheet 42, and a hand or the like can be inserted between the masking sheet 43 and the bonding sheet 42 from above. Therefore, it is possible to pull up the absorbent article 1 by inserting a hand or the like between the masking sheet 43 and the bonding sheet 42 and hooking a finger or the like on the opening 40 through the cut portion of the bonding sheet 42. . Note that the bonding sheet 42 and the masking sheet 43 may be bonded by sonic sealing, thermal bonding, pressure bonding, other adhesives, cohesive bonding, sewing, self-bonding, or the like.

  Further, the side panel 41 and the joining sheet 42 are non-extensible. Since the side panel 41 and the joining sheet 42 are non-extensible, the force for pulling up the absorbent article easily acts on the entire side panel 41 through the opening 40 or the like, and the absorbent article 1 can be easily used. Can be raised. The side panel 41 and the bonding sheet 42 according to the present embodiment are non-extensible, but may be extensible or stretchable.

Specifically, the side panel 41 according to the first embodiment is made of a 40 g / m ² polypropylene / spunbond nonwoven fabric. The joining sheet 42 consists of a 13 g / m < ² > SMS nonwoven fabric. The masking sheet 43 is made of, for example, a spunbond nonwoven fabric or an SMS nonwoven fabric, and the basis weight may be 10 to 60 g / m ² . Moreover, since the masking sheet 43 directly touches the wearer's skin, it is preferable that the masking sheet 43 has a low basis weight of about 10 to 30 g / m ^{2 in} order not to give a sense of incongruity. This embodiment is made of a 30 g / m ² polypropylene fiber spunbond (PPSB) nonwoven fabric.

  In general, a spunbonded nonwoven fabric or an SMS nonwoven fabric tends to be oriented along the machine direction (MD direction) and torn along the MD direction. Further, the opening is often formed to extend in the width direction. It is desirable that the joining sheet be easily cut along the longitudinal direction of the opening. Therefore, it is desirable to arrange the MD direction of the nonwoven fabric along the longitudinal direction of the opening. Specifically, since the longitudinal direction of the opening according to the present embodiment is the width direction, the bonding sheet is arranged so that the MD direction of the nonwoven fabric is the width direction.

  Furthermore, it is desirable that the friction coefficient on the skin contact surface side of the masking sheet 43 is configured to be lower than the friction coefficient on the skin contact surface side of the bonding sheet 42. Thus, by making the friction coefficient on the skin contact surface side of the masking sheet 43 lower than the friction coefficient on the skin contact surface side of the bonding sheet 42, the friction of the masking sheet 43 against the skin is reduced, and the feeling of wearing is further increased. Can be kept good. In addition, the measurement of a friction coefficient can be measured using KESFB4-AUTO-A (product surface) by Kato Tech Co., Ltd., for example.

The term “non-extensible” as used herein means an elongation rate of less than 105% when the load in each of the MD direction and the CD direction reaches 2N. For example, a PPSB nonwoven fabric of 40 g / m ² has an elongation rate of less than 102% in the MD direction and less than 103% in the CD direction.

  The elongation rate can be measured as follows.

  First, a sample having a length of 150 mm and a width of 50 mm and a sample having a length of 50 mm and a width of 150 mm are prepared with the MD direction at the time of molding of the nonwoven fabric to be measured as the vertical direction and the direction perpendicular thereto as the CD direction. Next, each gripping margin is set to about 20 mm and attached to a tensile tester, and pulled at a chuck distance of 100 mm and a pulling speed of 100 mm / min. The elongation percentage is measured based on the size of the sample before being attached to the tensile tester and the size of the sample when the load in each of the MD direction and the CD direction reaches 2N. When the sample size is small, the distance between chucks is reduced according to the sample size, and the measurement is performed in the same manner.

  The breaking strength can be measured as follows.

  First, a sample having a length of 70 mm and a width of 70 mm is produced. Next, a double-sided tape is affixed around the opening of the cylinder, and a sample is affixed so as to close the opening of the cylinder via the double-sided tape. Attach a pressing jig to the digital force gauge. The tip of the pressing jig has an elongated shape like a flathead screwdriver. Then, the cylinder with the sample attached is set on a movable stand for a digital force gauge. Further, the speed of the movable stand is set to 500 mm / min. Next, the position of the cylinder is adjusted so that the tip of the pressing jig comes into contact with the center of the sample covering the opening of the cylinder. Set the digital force gauge to 0. Pressure is applied so that the pressing jig moves downward (towards the sample), and the sample is pressed by the pressing jig. The maximum load until the sample is cut is obtained, and the value is taken as the breaking strength.

  The bonding strength can be measured as follows.

  First, a sample having a length of 25 mm and a width of 50 mm is produced. In the sample, a first sheet and a second sheet (for example, a bonding sheet and a side panel) partially overlap. One end of the sample in the width direction is only the first sheet, and the other end is only the second sheet. Further, the first sheet and the second sheet are bonded by a hot melt adhesive. Next, both widths of the sample are sandwiched between cloth tapes having a length of 70 mm and a width of 25 mm, and the cloth tape and the sample are joined. The cloth tape at one end is joined only to the first sheet, and the cloth tape at the other end is joined only to the second sheet. At the upper and lower grips of an Instron tensile tester, the upper and lower ends of the sample are attached, respectively. The sample is pulled at a pulling speed of 300 mm / min, with the distance (between chucks) between the upper gripping tool and the lower gripping tool set to 20 mm. The maximum load until the first sheet and the second sheet are separated is obtained, and the value is defined as the bonding strength. By using the joining sheet and the side panel, the side panel and the masking sheet, the joining sheet and the masking sheet as the first sheet and the second sheet, the joining strength can be measured by the same measurement method.

  A reinforcing sheet as a reinforcing member that reinforces the side panel 41 may be bonded to the side panel 41. For example, the reinforcing sheet can be adhered to the side panel with a hot melt adhesive. The reinforcing sheet and the side panel 41 may be bonded by sonic sealing, thermal bonding, pressure bonding, other adhesives, cohesive bonding, sewing, self-bonding, or the like. In addition, the reinforcing sheet may be configured by a member different from the chassis main body 31 or may be configured integrally with the chassis main body 31. By integrating the chassis main body 31 and the reinforcing sheet, the number of parts can be reduced, and the process of bonding the chassis main body and the side panel 41 and the process of bonding the reinforcing sheet and the side panel are performed. Since it can be combined, manufacturing efficiency can be improved. Furthermore, when the reinforcing sheet is constituted by a member separate from the chassis main body 31, a desired reinforcing effect can be easily obtained by appropriately changing the material of the reinforcing sheet.

  Further, the bonding sheet 42 may be provided on the non-skin contact surface side with respect to the side panel 41. By providing the bonding sheet 42 on the skin contact surface side of the side panel 41, the bonding sheet 42 is pressed toward the side panel in which the opening is formed when pressed from the outside of the absorbent article. Is done. At this time, the joining sheet of the portion that overlaps the periphery of the opening (the portion that does not overlap the opening) is supported by the side panel and is not easily deformed. On the other hand, the portion overlapping the opening is not supported by the side panel, and the pressing force is relatively easy to act. Therefore, it is possible to easily cut the portion corresponding to the opening. In the configuration in which the bonding sheet is provided on the non-skin contact surface side with respect to the opening, the position of the opening can be grasped by seeing the opening through the bonding sheet.

  Examples of the manufacturing method of the absorbent article configured as described above include a step of forming an opening in the side panel, a step of bonding the bonding sheet and the masking sheet to the side panel, and a bonding sheet and a masking sheet. The absorbent article can be manufactured by a method including a step of bonding the bonded side panels to the chassis body. In addition, other parts, such as the chassis main body 31, can be manufactured according to a well-known manufacturing method.

(Second Embodiment)
Next, an absorbent article 1A according to the second embodiment will be described in detail with reference to FIG. 4 and FIG. In the description of the second embodiment, a configuration different from that of the first embodiment will be described, and the description of the same configuration will be omitted by using the same reference numerals.

  In the absorbent article 1 </ b> A according to the second embodiment, the masking sheet 43 is disposed on the non-skin contact surface side with respect to the side panel 41. A bonding sheet 42 is disposed on the skin contact surface side of the side panel 41. According to the absorbent article 1 </ b> A configured as described above, the opening of the side panel 41 can always be shielded by the masking sheet 43. Therefore, even in the state where the bonding sheet 42 is cut, the cut portion is not exposed, and it is possible to prevent the finger or the like from being caught on the opening or the cut portion from the outside of the absorbent article.

  When pulling up the absorbent article by hooking a finger on the opening, etc., with the hand inserted between the masking sheet and the side panel from above the absorbent article, cut the joining sheet to remove the absorbent article. Can be raised. Alternatively, the absorbent article can be pulled up by cutting the joint sheet in the state where the hand is inserted inside the joint sheet (skin contact surface side), that is, between the absorbent article and the wearer.

(Third embodiment)
Next, an absorbent article according to a third embodiment will be described with reference to FIG. FIG. 7 is a schematic cross-sectional view of a cross section corresponding to the CC cross section of FIG. 5 of the absorbent article 1B according to the third embodiment. In the absorbent article 1B according to the third embodiment, the bonding sheet is bonded so as to cover the opening of the side panel, but does not include a masking sheet. Also by the absorbent article which concerns on 3rd Embodiment, when hooking a finger etc. on an opening part and pulling up an absorbent article, a joining sheet | seat can be partially cut | disconnected and an opening part can be open | released. Moreover, when not pulling up through an opening part, since the state which covers an opening part with a joining sheet | seat can be maintained, exposure of a wearer's skin can be prevented.

  Although the contents of the present invention have been disclosed through the embodiments of the present invention as described above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, in the first embodiment, a perforation as a cutting portion is formed in a region covering the opening of the bonding sheet, but a cutting portion having another configuration may be formed. The cutting part may be a plurality of fine holes formed in the bonding sheet in the region covering the opening, as long as the fibers constituting the bonding sheet are cut. By forming a plurality of holes, the fibers constituting the joining sheet are cut. Therefore, it becomes easy to cut | disconnect a joining sheet when pressing with a finger | toe etc. FIG. Moreover, the part by which the cutting | disconnection part was comprised lower than the other area | region of the joining sheet | seat may be sufficient. When the basis weight is configured to be low, the joining sheet is easily cut when pressed with a finger or the like.

  Further, in the present embodiment, since the opening is formed in each of the pair of side panels, a hand or the like can be hooked on the left and right sides of the wearer's waist, and the absorbent article can be pulled up in a well-balanced manner. It becomes possible. However, the opening may be formed only in one of the side panels.

  Although the side panel of the absorbent article which concerns on embodiment is comprised with the sheet material of 1 sheet, the side panel may be comprised with the some sheet material. For example, when the side panel is constituted by a plurality of sheet materials, a joining sheet or a masking sheet can be arranged between the plurality of sheet materials.

  The side panel of the absorbent article may be configured so that a hand or a finger can be caught, and may be configured such that a device other than the human body, such as a jig for pulling upward, is caught.

  Moreover, the side part panel and the absorber main body may be joined. When the side panel and the absorber main body are joined, the side panel and the absorber main body can be pulled up as a unit, and therefore it is easier to pull up. Moreover, the pants-type diaper which concerns on this Embodiment is provided with the side part panel in the waist | hip | lumbar both sides part of a wearer. However, some pants-type diapers have a joint where a side end located on the waist side of the wearer in the front waistline region and a side end in the rear waistline region are joined. In such a pants-type diaper, if the wearer holds both waist sides and pulls up, the joint may be peeled off. However, since the pants-type diaper according to the present embodiment can pull up the side panel itself, even if the side panel and the absorbent body are not joined, the absorbent body is properly lifted. It becomes possible.

  As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

  The cutting properties of the joining sheets according to Examples 1 to 8 and Comparative Examples 1 to 3 were evaluated. In addition, this invention is not limited by these.

(Evaluation content)
The cutting property of the joining sheet was evaluated using the above-described measuring method for breaking strength. Using the joining sheets having different breaking strengths according to Examples 1 to 8 and Comparative Examples 1 to 3, the cutting properties that facilitate breakage of the joining sheets were evaluated.

(Evaluation method)
After the breaking strength of the joining sheet was measured by the above-described measuring method, the monitor was pressed with a finger for each joining sheet, and the ease of breaking at that time was evaluated. The number of samples of the joining sheet is 1-5. In addition, fiber orientation was measured for each sample in the MD direction (conveying direction) and the CD direction (crossing direction). The state in which the fiber orientation is in the MD direction is a state in which the longitudinal direction of the tip of the pressing jig having an elongated shape is along the MD direction, and the state in which the fiber orientation is in the CD direction is a pressing treatment having an elongated shape. The longitudinal direction of the tip of the tool is in a state along the CD direction. What the monitor judged to be easily broken was “◯”, what was judged to be very easy to break was “◎”, and what was judged to be difficult to break was “x”.

(Joining sheet)
The joining sheets according to Example 1 and Example 2 are formed of a water-permeable or hardly water-permeable fiber nonwoven fabric that has been subjected to a hydrophobic or water-repellent treatment using a thermoplastic synthetic resin as a material. More specifically, during the spunbonded nonwoven fabric to each other the mass about 4.0~6.0g / ^{m 2,} by interposing a mass of about 0.5 to 2.0 g / ^{m 2} melt blown nonwoven fabric, a hydrophobic or water-repellent It is a hardly water-permeable SMS fiber nonwoven fabric with a treated mass of about 13.0 g / m ² .

In the joining sheets according to Examples 3 and 4, the surface layer side is composed of about 50% polyethylene (PE) fibers and 50% polypropylene (PP) fibers by weight ratio, and the lower layer is about 50% PE fibers and polyethylene fibers. It is an air-through nonwoven fabric composed of 50% phthalate (PET) fiber, and has a basis weight of 25 g / m ² .

The joining sheet | seat which concerns on Example 5 and Example 6 is the spun bond nonwoven fabric comprised from PP fiber, and a fabric weight is 20 g / m < ² >.

The joining sheet according to Example 7 is a spunbonded nonwoven fabric composed of PP fibers and has a basis weight of 22 g / m ² .

In the bonding sheet according to Example 8, the surface layer side is composed of about 50% PE fiber and 50% PP fiber by weight ratio, and the lower layer is an air-through nonwoven fabric composed of about 50% PE fiber and 50% PET fiber. Is 35 g / m ² .

The joining sheets according to Comparative Example 1 and Comparative Example 2 are 30 g / m ² spunbond nonwoven fabric composed of embossed PP fibers, and SMS fiber nonwoven fabric 15 g / m ² (spunbond) made of PP fibers. The ratio of the non-woven fabric / melt blown non-woven fabric is referred to the bonding sheets according to Example 1 and Example 2) and is bonded with a hot melt adhesive 3 g / m ² .

The joining sheet | seat which concerns on the comparative example 3 is the spun bond nonwoven fabric comprised from PP fiber, and a fabric weight is 22g / m < ² >.
(Evaluation results)
The evaluation results are shown in Table 1.

  The joining sheets according to Examples 1 to 8 were all determined to be easily broken or very easy to break, and it was found that they can be easily cut. On the other hand, the bonding sheets according to Comparative Examples 1 to 3 were all determined to be difficult to break by the monitor. The joining sheet having the highest breaking strength among the joining sheets determined to be easily broken or very easy to break by the monitor is the joining sheet according to Example 5, and the breaking strength is 19.7N. In other words, it was found that a joining sheet having a breaking strength of 19.7 or less can be easily cut.

  Moreover, the joining sheet with the highest breaking strength among the joining sheets determined to be very easy to break is the joining sheet according to Example 2, and the breaking strength is 9.94N. That is, it has been found that a joining sheet having a breaking strength of 9.94 or less can be broken very easily.

  Furthermore, it was found that the bonding sheet with the fiber orientation in the MD direction has a lower breaking strength than the bonding sheet in the CD direction, and the monitor is easy to cut. Therefore, when arrange | positioning a joining sheet along an opening part, it becomes easy to cut | disconnect along the longitudinal direction of an opening part by arrange | positioning along the MD direction in the longitudinal direction of an opening part.

  DESCRIPTION OF SYMBOLS 1, 1A, 1B ... Absorbent article, 2 ... Absorber main body, 3 ... Chassis, 31 ... Chassis main body, 31A ... Front side edge part, 31B ... Rear side edge part, 40 ... Opening part, 41 ... Side panel, 41A ... front end, 41B ... rear end, 42 ... bonding sheet, 42Y ... perforation, 43 ... masking sheet, 91 ... waist elastic member, 92 ... waist elastic

Claims (7)

A front and rear direction extending to the wearer's body front side and the body rear side; and a width direction orthogonal to the front and rear direction; and a front waistline region, a back waistline region, and the front waistline region and the back waistline region An absorbent article comprising a chassis having a crotch region interposed therebetween,
The chassis is joined to a chassis main body extending from the front waistline region to the rear waistline region via the crotch region, and both end portions of the chassis body in the width direction, and the front waistline region and the rear waistline region A side panel disposed between and a bonding sheet bonded to the side panel,
The side panel has an opening into which a finger can be inserted,
The bonding sheet is disposed so as to cover the opening of the side panel, and is bonded to the side panel at least around the opening,
The absorbent article is cut by being pressed by a finger inserted into the opening. A front and rear direction extending to the wearer's body front side and the body rear side; and a width direction orthogonal to the front and rear direction; and a front waistline region, a back waistline region, and the front waistline region and the back waistline region An absorbent article comprising a chassis having a crotch region interposed therebetween,
The chassis is joined to a chassis main body extending from the front waistline region to the rear waistline region via the crotch region, and both end portions of the chassis body in the width direction, and the front waistline region and the rear waistline region A side panel disposed between and a bonding sheet bonded to the side panel,
The side panel has an opening into which a finger can be inserted,
The bonding sheet is disposed so as to cover the opening of the side panel, and is bonded to the side panel at least around the opening,
The absorbent article according to claim 1, wherein a breaking strength of the joining sheet is lower than a breaking strength of the side panel and is 20 N or less.   The absorbent article according to claim 1, wherein a masking sheet that covers the opening is provided on a skin contact surface side of the side panel and the bonding sheet.   The absorbent article according to claim 1, wherein a masking sheet that covers the opening is provided on the side panel and the non-skin contact surface side of the bonding sheet.   The absorbent article according to any one of claims 1 to 4, wherein the side panel is non-extensible.   The absorbent article according to any one of claims 1 to 5, wherein a bonding strength between the side panel and the bonding sheet is 25N or more. In a region overlapping with the opening of the bonding sheet, a cutting portion in which fibers forming the bonding sheet are cut is provided,
The absorbent article according to any one of claims 1 to 6, wherein the cutting portion is configured to be cut by being pressed by a finger inserted into the opening.

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