JP4516734B2 - Disposable hygiene products - Google Patents

Description

  [Technical Field] The present invention relates to a disposable sanitary ware that allows exchanging absorbent articles that absorb urine while taking into consideration that excrement such as feces does not directly adhere to a wearer's body.

  Conventionally, for disabled and elderly people who cannot control defecation and urination, the waste is stored and enclosed from the waist area to the crotch area, and each area is wrapped to prevent leakage. A diaper is used to hold it. This conventionally used diaper is a disposable paper diaper where one side of a water-absorbing material such as water-absorbing paper or pulp is covered with a waterproof sheet. A highly absorbent paper diaper or the like covered with a waterproof sheet is known. By the way, in conventional diapers, liquids such as urine are absorbed by the absorbent core interposed between the sheets, and further, the absorbed urine and the like are absorbed by improving the absorbent core and the body side sheet (top sheet). Although a device has been devised to prevent the liquid from flowing back and wet the body such as the buttocks, the stool can hardly be absorbed by the absorbent core.

  Therefore, when the wearer stool, the stool adheres to a body such as the hips in a wide range, and it is necessary to wipe off the stool attached when changing the diaper.

  Also, as a cause of diaper rash when wearing diapers, when urine and feces are mixed, ammonia is generated, this ammonia makes the environment alkaline, and the enzymes in the stool are strongly activated in an alkaline atmosphere. It has been considered that the weakened part of the skin becomes inflamed and causes diaper rash.

  For this reason, it can be said that the most reliable way to prevent diaper rash is to replace diapers and wash dirty skin each time urination or defecation is performed, but it is a cumbersome operation.

  In response to such a situation, diapers such as Patent Document 1 and Patent Document 2 can be used to prevent the occurrence of diaper rash by preventing stool and urine from mixing together and preventing the stool from adhering to the body. Is disclosed.

  That is, the one disclosed in Patent Document 1 is provided with a skin surface contact portion and a take-out knob portion on the outer periphery of a storage port portion for storing excrement, and a crotch contact portion is provided on the skin surface contact portion to store waste. A diaper body formed by disposing a water-absorbing polymer on the hermetic bottom part of the part, an insertion opening that makes it easy to insert and remove the diaper body in the crotch part, a shape-retaining member, and a crotch locking part. The back body and the front body having a loose locking part and the pants worn with the waistband unfolded, the diaper body is inserted into the pant body, each of the skin surface and crotch skin surface around the excretion site A disposable diaper article that is pressed and held by the pant body so that the skin contact part and the crotch contact part are in close contact with each other, and the pant having an insertion opening at a position corresponding to the urination part and the defecation part of the human body Containment of excrement in diaper body with excrement storage part and forming main body By worn inserting the mixing reduction and diffusion of excrement so it can accommodate The separate urination and defecation and, thereby prevent leakage becomes easy replacement of only the diaper containing the excrement. Moreover, by adjusting tightly with the locking body, it fits the excretion site and reliably prevents rubbing and leakage. Furthermore, the diaper main body becomes compact because it is configured to separate and accommodate urination and defecation, and can be disposed as it is in the toilet.

Moreover, what was disclosed by patent document 2 consists of a front urine receptacle and a rear stool receptacle part, forms the waterproof bag body which provided the urine hole and the drain valve in the urine receptacle, and urine is formed in the urine hole Put the receptacle in a detachable manner, put a cilia-like flexible body in the hollow interior of the urine receptacle, form a waterproof bag body with a defecation hole and a defecation valve in the stool receptacle, and put a frame on the defecation hole Is a diaper that lays a sponge-like flexible body in the hollow part of the stool receptacle and collects urine and stool separately, making it easy to clean up after stool, For the wearer, the appearance of rash, dripping, and swell is suppressed, and the appearance is beautiful and coupled with a light wearing feeling, and it is full of cleanliness.
JP 2000-197661 A Japanese Utility Model Publication No. 52-171425

  However, these diapers are intended to ensure that urine absorption is smoothly accommodated in the bag body through the opening hole of the diaper to reduce the contamination due to the excretion of the urine and the excrement of the skin. The method of close contact with the body is not particularly taken into account, and therefore the position of the local area such as the urethral opening and anus and the opening hole may be shifted and the vicinity of the opening hole may become dirty.

  The present invention has been made in view of the problems as described above, and its purpose is to smoothly transfer excrement to an absorbent article that is detachably attached to disposable underwear, and to prevent contamination by excrement of skin. An object of the present invention is to provide a disposable hygiene product that allows replacement of an absorbent article that absorbs urine, while taking into account that feces and the like do not directly adhere to the wearer's body in a reduction manner.

  In order to achieve the above object, in the present invention, a urination opening and / or a defecation opening is formed in a crotch region of a pants-shaped disposable underwear (hereinafter referred to as an underwear), and the outside of the underwear Disposable sanitary ware that is detachably attached to a position corresponding to the opening on the side opposite to the body, and an elastic body that fills the space between the underwear and the body part is opened on the body side of the underwear By providing around the part, the excrement can be reliably moved from the opening to the absorbent article attached to the opposite body side of the undergarment regardless of the posture.

  The present invention specifically provides the following.

  (1) A pants-shaped disposable underwear having a crotch region interposed between a front side region and a rear side region, and having a pair of left and right leg openings and a waist extension that is stretchable in a waist direction, A urination opening and / or a defecation opening in the region, and an elastic body disposed so as to surround the opening and projecting toward the body, the elastic body comprising the urination opening and / or Or the disposable underwear characterized by having the opening hole connected with the opening part for defecation.

  According to the present invention, the elastic body arranged so as to surround the opening is in close contact with the vicinity of the local part of the body and fills the gap between the pants-shaped disposable underwear and the local part of the body. Since the formed opening hole communicates with each opening formed in the crotch region of the underwear, excrement such as urine and feces passes from the respective opening of the underwear to the outside of the underwear through the opening hole of the elastic body. Will be moved. In this way, the elastic body is in close contact with the local area, so that excrement is reliably moved out of the underwear regardless of the posture during wearing, and contamination by skin excrement is greatly reduced. Will be.

  (2) A disposable sanitary article comprising the disposable undergarment and an absorbent article that is detachably attached to the crotch region on the opposite side of the undergarment.

  According to the present invention, the disposable sanitary article has a urination opening and / or a defecation opening formed in the crotch region, has an opening hole communicating with these openings, and is disposed so as to surround the opening. As described in (1), the excrement is elastic because it comprises an underwear having an elastic body projecting toward the body side and an absorbent article detachably attached to the crotch region on the side opposite to the body of the underwear. It will be transferred from the respective opening hole of the undergarment to the absorbent article through the opening hole of the body, and the excrement is surely transferred to the absorbent article for any body position during wearing. For this reason, as compared with the conventional one, the absorption of the body fluid is surely performed and the contamination by the excrement of the skin is reduced.

  In addition, since the absorbent article is detachably attached to the underwear, the exchanging work is greatly simplified because it is possible to replace the absorbent article after excretion of urine, feces and the like. Further, since the absorbent article is compact, post-treatment after replacement is easy.

  (3) The absorbent article includes a top sheet, a leak-proof sheet, and an absorbent core included in the sheet, and the top sheet surface is used for urination when attached to the disposable underwear. The disposable sanitary article according to (2), wherein an opening is provided at a position corresponding to the opening and / or the defecation opening.

  According to the present invention, the absorbent article has the top sheet surface opened at a position corresponding to the urination opening and / or the defecation opening formed in the underwear when attached to the underwear. An absorptive core will be exposed in the part of this opening, and body fluids, such as urine, will be absorbed more easily. Further, since the absorbent core is included in the top sheet and the leak-proof sheet, even if the absorbent core absorbs body fluid such as urine, it does not leak out. Furthermore, since it is possible to absorb body fluid at the opening portion of the top sheet, it is possible to use a top sheet that is superior in leak-proofing properties, thereby preventing leakage to the underwear side during wearing. Become.

  (4) The disposable underwear is characterized in that the crotch region is made of a material having elasticity in the direction of the front side region and the rear side region. Disposable sanitary ware.

  According to the present invention, the crotch region is made of a material having elasticity in the direction of the front side region and the rear side region (hereinafter referred to as the longitudinal direction of the underwear), so that when the underwear is worn, The longitudinal direction of the underwear is expanded and contracted, and the respective openings formed in the crotch region can be brought into close contact with the body surface in accordance with local areas such as the urethral opening and the anus. In addition, the elastic body is also pushed up to the body side in the crotch region and is in close contact with the body surface to fill the space portion between the opening hole and the local part of the body. As a result, excrement is transferred to the absorbent article without staining the vicinity of the opening of the underwear.

  Here, as a stretchable member constituting the crotch region, a stretchable nonwoven fabric is preferable, and a layered stretchable nonwoven fabric laminated with a melt blown containing an elastomer component in the component, a composite of a film-like elastomer and a nonwoven fabric Or any form of the nonwoven fabric manufactured with the split fiber which contained the elastomer component in the fiber may be sufficient. For example, a melt blown continuous fiber of olefin resin is laminated substantially unstretched, then an olefin elastomer is laminated and welded, and a melt blown continuous fiber of the same olefin resin is further laminated thereon to form a three-layer composite A stretchable nonwoven fabric obtained by creating a body and then embossing and gear stretching these composites may be used. Alternatively, a first polymer such as elastically stretchable thermoplastic urethane and a second polymer such as polypropylene that is incompatible with the polymer and inelastically stretchable are simultaneously extruded and laminated from a spinning extrusion nozzle by a well-known technique. It may be a stretchable nonwoven fabric made of split fiber obtained by post-drawing.

  (5) The disposable sanitary article according to any one of (2) to (4), wherein the disposable underwear is configured such that the crotch region is made of a hydrophobic material.

  According to the present invention, since the crotch region of the disposable underwear is made of a hydrophobic material, even if the body fluid absorbed by the absorbent article leaks accidentally, the underwear is prevented from getting wet.

  (6) The disposable hygiene product according to any one of (2) to (5), wherein the stretching stress in the crotch region is smaller than the stretching stress in the waistline opening.

  According to the present invention, since the stretching stress in the crotch region is smaller than the stretching stress in the waistline opening, the waistline can be fitted to the body when the waistline opening is widened and the underwear is worn. Furthermore, even if the waistline opening is displaced, the crotch region is held in a state of being fitted to the body.

  (7) For the stretching stress in the crotch region, in a two-cycle tensile test, the second tensile strength at 50% elongation is 10 N / 5 cm or less, and the tensile strength at 30% elongation is 7 N / 5 cm or less. The disposable sanitary article according to any one of (2) to (6), wherein

  According to the present invention, since the tensile strength is small even when worn in the stretched state, the crotch region does not bite into the body surface, so that even if it is worn, it is difficult to cause discomfort.

  (8) The disposable hygiene product according to any one of (2) to (7), wherein an elongation rate of the elastic body is smaller than an elongation rate of a material constituting the crotch region.

  According to the present invention, when wearing underwear, the crotch region is extended and the respective openings formed in the crotch region are brought into close contact with the body surface according to the local part of the body, but the elastic body is compared with the crotch region. Since the degree of elongation is small, even if the underwear expands or contracts due to the movement of the wearer during wearing, the elastic body is less deformed and is kept in close contact with the body. For this reason, the opening formed in the crotch region and the opening hole formed in the elastic body are maintained in communication with each other. The excrement is smoothly moved from the part to the absorbent article.

(9) The rigidity of the elastic body is characterized in that, in the KES compression test, the compression resilience at the time of compression of 35 g / cm ² is 90 or more, and the LC value is 1.2 or less (2) to ( 8) The disposable sanitary ware according to any one of the above.

According to the present invention, the rigidity of the elastic body has an appropriate elasticity because the compression resilience at the time of compression of 35 g / cm ² is 90 or more and the LC value is 1.2 or less in the KES compression test. , Without being out of shape, maintaining close contact with the body. For this reason, the opening formed in the crotch region and the opening hole formed in the elastic body are held in communication with each other, and the opening of the underwear passes through the opening hole of the elastic body in any position when wearing the underwear. Therefore, excrement is smoothly moved from the absorbent to the absorbent article.

  (10) From (2) to (2), wherein the urination opening and / or the defecation opening has a length when the crotch region is extended shorter than a length of the absorbent article. 9) The disposable sanitary ware according to any one of the above.

  According to the present invention, since the length of the urination opening and / or the defecation opening when the crotch region of the underwear is extended is shorter than the length of the absorbent article attached to the side opposite to the body, Even if the underwear expands and contracts due to the movement of the wearer and the crotch region extends, these openings are accommodated in the absorbent article, so that excrement moved through the openings is reliably captured by the absorbent article. Become.

  As described above, the present invention has a urination opening and / or a defecation opening for passing excrement in the crotch region, and has an opening hole communicating with the opening, and surrounds the opening. A disposable sanitary article comprising an underwear having an elastic body that is arranged in a protruding manner and an absorbent article that is detachably attached to the crotch region on the side opposite to the body of the underwear, when worn In addition, the elastic body fills the space between the underwear and the body's local part and is in close contact with the body, and excrement can be attached to the opposite body side of the underwear through the respective opening holes of the elastic body and the respective openings of the crotch region. The absorbent article is moved. Accordingly, excrement can be reliably transferred from the opening to the absorbent article regardless of the posture while wearing the underwear. Moreover, since excrement will move to an absorbent article through the opening hole of an elastic body, since excrement will not contact the body side surface of underwear, excrement will not spread to the body side surface of underwear. For this reason, it is reduced that the skin is contaminated with excrement, and diaper rash is less likely to occur.

  In addition, since the absorbent article is detachably attached to the outside of the underwear, the absorbent article can be exchanged without taking off the underwear, so that the wearer and caregiver are forced to take off the underwear. Therefore, it is possible to easily replace the absorbent article. Further, post-treatment after replacement is simple and easy because only the treatment of the absorbent article is required.

  Hereinafter, the present invention will be described in more detail.

  FIG. 1 is a perspective view showing an embodiment of a disposable sanitary article according to the present invention, FIG. 2 is a cross-sectional view taken along line II of the first embodiment shown in FIG. 1, and FIG. 3 is an implementation shown in FIG. It is a top view of the underwear which extended the form back and forth. 4 is a perspective view showing an elastic body, and FIG. 5 is a cross-sectional view illustrating a cross section taken along line II-II in a state where an absorbent article is attached to the underwear shown in FIG. In these drawings, the dimensions are appropriately adjusted for easy understanding.

  As shown in FIG. 1, the disposable sanitary article 1 of the present invention includes an undergarment 2 and an absorbent article 3, and the absorbent article 3 is detachable from the crotch region 6 of the undergarment 2 (on the opposite side). Installed and configured.

  The underwear 2 includes a front side region (front body) 4, a rear side region (rear body) 5, and a crotch region 6 interposed between both side regions 4 and 5, as shown in FIGS. 1 to 3. The side edges 4 and 5 are in contact with each other at the side edges, and are joined by a welding zone 9 extending in the vertical direction, thereby forming a waist opening 7 and a pair of left and right leg openings 8. In both side regions 4 and 5, a plurality of waistline elastic members 10 are attached to the edge of the waistline opening 7 in the extending direction in an extended state. Similarly, a plurality of leg-hole elastic members 11 are attached to the edge of the leg-hole opening 8 in the extending direction in the extending direction.

In the crotch region 6, a urination opening 12 is formed at a position corresponding to the vicinity of the urethral opening when the undergarment 2 is worn, and a defecation opening 13 is formed at a position corresponding to the vicinity of the anus. The area of these openings 12 and 13 is 150 cm ² or less, preferably 60 cm ² or less, more preferably 30 cm ² or less. In the embodiment, the openings 12 and 13 are formed at positions corresponding to the vicinity of the urethral opening and the vicinity of the anus, respectively, but only one of the vicinity of the urethral opening and the vicinity of the anus may be provided. Further, the size and the like are set so that the urination opening 12 and the defecation opening 13 are accommodated in the absorbent article 3 in a state where the crotch region 6 is extended.

  In addition, an elastic body 14 is disposed on the body side surface of the crotch region 6 of the underwear 2 so as to surround the urination opening 12 and the defecation opening 13 and protrudes toward the body. As shown in FIG. 4, the elastic body 14 is three-dimensionally formed in a three-dimensional manner in accordance with the shape of the urethra mouth and anus of the body, and has a maximum thickness of about 25 mm. As shown in FIG. 5, the urination opening 12 and the stool opening 13 and the urethra are formed in the crotch region 6 of the underwear 2. The mouth and anus are formed to communicate with each other. A rubber hot melt is applied to the side facing the underwear 2 and joined to the underwear 2 at the crotch region 6. The elastic body 14 is preferably of the above-mentioned shape because it fits more closely to the local part of the body, but is not limited thereto, and may be, for example, a planar elliptical shape.

  In addition, an accommodation part 17 for accommodating the absorbent article 3 is provided on the side opposite to the crotch region 6. The accommodating portion 17 is formed of a receiving cloth 18 that covers the crotch region 6. That is, three side edges of the receiving cloth 18 are joined to the undergarment 2 at the crotch area 6 so that the front side area (front body) 4 side of the undergarment 2 of the accommodating portion 17 is opened, and the other side edge is formed. A locking member 19 is provided in the case. The locking member 19 is engaged with the adherend 20 attached to the undergarment 2 to prevent the absorbent article 3 housed in the housing 17 from popping out.

  As a method of detachably attaching the absorbent article 3 to the crotch region 6 of the underwear 2, in the present embodiment, the housing portion 17 is provided and housed in the housing portion 17, but is not limited thereto. For example, attachment by a pair of male and female surface fastener members such as Velcro (registered trademark) (see FIG. 6), attachment by an adhesive tape, a button, or a chuck may be used. Among them, the method using a rail chuck (see FIG. 7) is preferable because it is simple and reliable and has excellent leakage prevention and noise reduction.

  On the other hand, as shown in FIGS. 1 and 2, the absorbent article 3 was enclosed between the liquid-permeable top sheet 21, the liquid-impermeable leak-proof sheet 22, and the sheets 21 and 22. It is comprised from the absorptive core 23. FIG. The top sheet 21 has a first opening 24 and a second opening at positions corresponding to the urination opening 12 and the defecation opening 13 formed in the crotch area 6 when attached to the crotch area 6 of the underwear 2. 25 is formed. Moreover, the top sheet 21 and the leak-proof sheet 22 are overlapped at a portion extending from the peripheral edge of the absorbent core 23 and are joined so as not to be peeled off.

  Next, the state in which the absorbent article 3 is housed in the housing portion 17 provided below the crotch region 6 of the underwear 2 will be described with reference to FIG. FIG. 5 is a cross-sectional view illustrating a cross-section taken along line II-II in a state where the absorbent article 3 is accommodated and mounted in the accommodating portion 17 provided below the crotch region 6 of the underwear 2 shown in FIG. FIG. As shown in FIG. 5, the bowel opening 16 formed in the elastic body 14, the bowel opening 13 formed in the crotch region 6 of the underwear 2, and the top sheet 21 of the absorbent article 3. The second opening 25 communicates with the absorbent core 23 and the leak-proof sheet 22 below the second opening 25. The excreted excreted material is smoothly transferred to the absorbent article 3 from the defecation opening hole 16 of the elastic body 14 through the communicating portion, and the body fluid is absorbed by the absorbent core 23 from the second opening 25. The leak-proof sheet 22 located below the absorbent core 23 prevents the liquid absorbed by the absorbent core 23 from leaking. Although FIG. 5 is an explanation of the anal region, the urethra mouth region is not shown, but similarly, the urination opening 15 and the urination opening 12 formed in the crotch region 6 of the underwear 2 The first opening 24 formed in the top sheet 21 of the absorbent article 3 communicates with the absorbent core 3 and the leakproof sheet 22 is covered below the first opening 24. The excreted excreted material is smoothly moved from the urination opening 15 of the elastic body 14 to the absorbent article 3 through this communicating portion, and the body fluid is absorbed into the absorbent core 23 from the first opening 24.

  Next, members constituting the disposable sanitary article 1 will be described in detail.

  The member constituting the crotch region 6 of the underwear 2 is preferably a stretchable nonwoven fabric, a layered stretchable nonwoven fabric laminated with a melt blown containing an elastomer component in its component, a composite of a film-like elastomer and a nonwoven fabric, or Any form of the nonwoven fabric manufactured with the split fiber containing the elastomer component in the fiber may be used. For example, a melt blown continuous fiber of olefin resin is laminated substantially unstretched, then an olefin elastomer is laminated and welded, and a melt blown continuous fiber of the same olefin resin is further laminated thereon to form a three-layer composite A stretchable nonwoven fabric obtained by creating a body and then embossing and gear stretching these composites may be used. Alternatively, a first polymer such as thermoplastic urethane that can be elastically stretched and a second polymer such as polypropylene that is incompatible with the first polymer and that can be stretched inelastically are simultaneously fed from a spinning extrusion nozzle by a well-known technique. A stretchable nonwoven fabric made of split fiber obtained by stretching after extrusion lamination may also be used.

  In addition, in the two-cycle tensile test described below, the stretching stress is 10 N / 5 cm or less at the second 50% elongation, and 7 N / 5 cm or less at the 30% elongation. Preferably, the tensile strength at 50% elongation is 5 N / 5 cm or less, and the tensile strength at 30% elongation is 2 N / 5 cm or less. If the tensile strength at the time of 50% elongation for the second time is greater than 10 N / 5 cm and the tensile strength at 30% elongation is greater than 7 N / 5 cm as the stretching stress, the inseam region 6 is a local part of the body when the undergarment 2 is worn. The wearer will feel uncomfortable.

  In the above-described two-cycle tensile test, a specimen cut to 25 mm × 150 mm is attached to a tensile tester at an interval of 100 mm between chucks, pulled at a speed of 100 mm / min until 100% elongation, and then returned at the same speed. This is one cycle, and two cycles are performed. An autograph manufactured by Shimadzu Corporation was used as the tensile tester used.

  Further, this stretching stress is preferably smaller than the stretching stress of the waistline opening 7. Accordingly, the crotch region 6 can be fitted to the body when the waistline opening 7 is widened and the undergarment 2 is worn. Furthermore, even if the waistline opening 7 is displaced, the crotch region 6 can maintain a state fitted to the body.

The air permeability is preferably 500 g / m ² · 24 h or more, more preferably 1000 g / m ² · 24 h or more, according to JIS Z 0208 “Moisture permeability test method for moisture-proof packaging material (cup method)”. More preferably, it is 2000 g / m ² · 24 h or more. If it is less than 500 g / m ² · 24 h, ventilation in the crotch region 6 is worsened, and urine or the like is stuffy due to the moisture of the body fluid.

  In addition, the leakage resistance is such that the water pressure resistance according to JIS L 1092 “Test method for waterproofness of textile products” is 150 mm or more, more preferably 300 mm or more. Thus, by making the crotch region 6 hydrophobic, even if the body fluid absorbed by the absorbent article 3 leaks accidentally, the underwear 2 is prevented from getting wet. If the water pressure is lower than 150 mm, it is inconvenient because the body fluid may move from the crotch region 6 to the undergarment 2 when the body fluid accidentally leaks from the absorbent article 3.

  Moreover, you may give perspiration absorbency using split fiber, such as an olefin and ester, instead of said olefin type continuous fiber. As a result, the state in which the local area is moistened by sweat or the like can be eliminated, and a refreshing feeling can be maintained even when worn.

The elastic body 14 is a sponge, rubber, elastomer or the like made of urethane having rubber elasticity, and the rigidity thereof is 90 or more in compression resilience (RC) at the time of compression of 35 g / cm ² in the KES compression test. And those having an LC value of 1.2 or less are preferred. If the compression resilience (RC) at the time of compression of 35 g / cm ² is lower than 90, there is a possibility that the elastic body 14 loses its shape and closes the opening holes 15 and 16. On the other hand, if the LC value is higher than 1.2, it is too hard and the elasticity is poor.

  Moreover, it is preferable that the elongation rate is 1 to 20%. More preferably, it is 1 to 10%. In addition, as for the relationship between the elongation rate of the crotch region 6 and the elongation rate of the elastic body 14, it is preferable that the elongation rate of the elastic body 14 is smaller than the elongation rate of the crotch region 6. Accordingly, when the undergarment 2 is worn, the crotch region 6 is extended so that the openings 12 and 13 formed in the crotch region 6 are brought into close contact with the body surface in accordance with the urethral opening of the body and the local area of the anus. Since the body 14 is less stretched than the crotch region 6, even if the underwear expands or contracts due to the movement of the wearer during wearing, the elastic body 14 is less deformed and is kept in close contact with the body. For this reason, the opening parts 12 and 13 formed in the crotch region 6 and the opening holes 15 and 16 formed in the elastic body 14 are maintained in communication with each other. The excrement is smoothly moved from the openings 12 and 13 of the underwear 2 to the absorbent article 3 through the opening holes 15 and 16 of the elastic body 14.

  It is preferable that the elastic body 14 is made of a water-resistant and water-repellent material because it is difficult to absorb bodily fluids of excrement or stool or the like.

The top sheet 21 constituting the absorbent article 3 is preferably a hydrophilic nonwoven fabric, for example, a point bond nonwoven fabric, a through-air nonwoven fabric, a spunbond nonwoven fabric, or the like. Moreover, as the absorptive core 23, what wrapped pulp and the superabsorbent polymer (SAP) with the tissue or the nonwoven fabric, and what wrapped airlaid pulp and SAP with the nonwoven fabric etc. are preferable. Further, the leakproof sheet 22 has a moisture permeability of 1000 g / m ² · 24 h or more, preferably 2000 g / m ² · 24 h or more according to JIS Z 0208 “Moisture permeability test method for moisture-proof packaging materials (cup method)”. Yes, it is more preferable to use a liquid-impervious plastic film of 3000 g / m ² · 24 h or more, but a nonwoven fabric is bonded to the outer surface of the ultra-thin plastic film to improve the strength and feel of the film. You can also use it.

Specific absorbent articles 3, and kraft pulp of opening has been basis weight 500 g / ^{m 2,} the absorbent core by laminating a superabsorbent polymer having a basis weight of 400g / ^{m 2} (SAP) in 400 × 150 mm size The olefin fibers laminated by the card method are made into a nonwoven fabric by the airless method, and 50 parts by weight of low density polyethylene mixed with 50 parts by weight of calcium carbonate are discharged from a T die at 320 ° C. by an extruder, 30 m / It is a urine-absorbing pad-like material prepared by being heat-sealed with a resin film leakage-proof sheet having a thickness of 20 μm and a moisture permeability of 2400 g / m ² · 24 h or more obtained by winding at a speed of min.

  Next, another method for attaching the absorbent article 3 to the opposite body side surface of the crotch region 6 of the underwear 2 will be described with reference to FIGS. 6 and 7.

  FIG. 6 is a schematic view showing another embodiment of a method for attaching the absorbent article to the undergarment, wherein (a) is a front view of the front side of the undergarment, and (b) is a plan view of the absorbent article. . FIG. 7 is a schematic view for explaining still another embodiment of a method for attaching the absorbent article to the undergarment, wherein (a) is a front side view of the undergarment, and (b) is an absorbent article. It is a top view. In the figure, the same reference numerals as those in FIGS. 1 to 3 are used in the same meaning, and redundant description is omitted here.

  FIG. 6 shows the absorbent article 3 attached to the crotch region 6 of the underwear 2 with a pair of male and female hook-and-loop fastener members. That is, as shown in FIG. 6A, the side edge of the crotch region (shaded region) 6 of the underwear 2 on the front side region (front body) 4 side extends in the left-right direction along the side edge. The bonded portion 20 is attached to the opposite side of the underwear 2 in the form. Moreover, although not shown in figure, the to-be-adhered part 20 of the underwear 2 is also extended in the left-right direction along this side edge also at the side edge of the back side area (rear body) 5 side of the crotch area 6 of the underwear 2. It is worn on the anti-body side. On the other hand, as shown in FIG. 6B, locking members 19 are attached to both side edges in the width direction of the top sheet 21 of the absorbent article 3 so as to extend in the left-right direction along the respective side edges. ing.

  The locking member 19 is, for example, a male-side engagement piece such as an engagement piece planted with a hook-type engagement element or an engagement piece planted with a mushroom-type engagement element. This is mechanical engagement in which the male engagement piece is mechanically engaged with the loop-shaped fiber material. The engaging means is not limited to this. For example, a film in which an adhesive such as rubber is applied to the locking member 19 is used, and the part to be bonded 20 is subjected to mold release processing. A film may be used to engage and lock with an adhesive.

  In FIG. 7, the absorbent article 3 is attached to the crotch region 6 of the underwear 2 by a pair of rail chucks 26a and 26b. That is, as shown in FIG. 7 (a), a pair of rail chucks 26a, along the outer peripheral edge 12 'of the urination opening 12 formed in the crotch region (shaded region) 6 of the underwear 2 Of 26b, a rail chuck 26a having male ridges is attached. Further, although not shown, the protrusion of the male piece of the pair of rail chucks 26a and 26b is similarly formed along the outer peripheral edge 13 'of the defecation opening 13 formed in the crotch region 6 of the underwear 2. A rail chuck 26a having a strip is attached. The rail chuck 26a attached to the urination opening 12 is provided with a disconnection portion 28 at the center of the front side region (front body) 4 side. Although not shown, the rail chuck 26a attached to the defecation opening 13 is provided with a disconnection 28 at the center on the rear side (rear body) 5 side. On the other hand, as shown in FIG. 7B, a pair of rail chucks 26 a, along the outer peripheral edge 24 ′ of the first opening 24 and the outer peripheral edge 25 ′ of the second opening 25 of the top sheet 21 of the absorbent article 3. Among the rails 26b, rail chucks 26b having female grooves are provided. Similarly, the rail chuck 26b is provided with a disconnection portion 28 at a position corresponding to the disconnection portion 28 provided in the rail chuck 26a.

  The absorbent article 3 is attached / detached by hooking the slider 27 to the broken portion 28 of the rail chucks 26a, 26b, and pulling the slider 27 to engage the male piece of the rail chuck 26a and the female piece of the rail chuck 26b. Locked. Engagement may be performed without using the slider 27, but it is preferable to perform the engagement by attaching the slider 27 because it is easier.

  The mounting method using the rail chucks 26a and 26b is preferable because it is simple and reliable and is excellent in leakage prevention and noise reduction. Specific examples of the rail chucks 26a and 26b include a rail fastener “Joylon (registered trademark) standard PP” (trade name) manufactured by YKK.

  About the disposable sanitary goods 1 of this invention demonstrated above, it tested by the test method shown below compared with the effect of the leakage rate of urine and feces, and the amount of skin adhesion with the conventional commercial item (Y company rehabilitation pants). The results are shown in Table 1.

[Test method]
First, a test sample (the disposable sanitary article of the present invention) is attached to a test doll that can discharge artificial urine and artificial stool from a genital part such as a urethral opening or an anus.
<Urine leakage rate, skin adhesion>
(I) The artificial urine is put into a test doll equipped with a test sample at 150 cc / 15 sec.
(Ii) Continue to add artificial urine at 5 minute intervals until a total of 450 cc. If it leaks from the test sample at 450cc or less, the charging is stopped.
(Iii) While measuring the input amount, the artificial urine adhering to the test doll is wiped off with a filter paper, and the adhering amount is measured.
(Iv) Ten samples are measured to calculate the leakage rate and urine skin adhesion amount.
<Stool leakage rate, skin adhesion>
(V) Insert artificial stool at 300 g / 30 sec into a test doll fitted with a test sample. If the test sample leaks at 300 g or less, the charging is stopped.
(Vi) While measuring the input amount, wipe the artificial stool adhering to the test doll with filter paper and measure the adhesion amount.
(Vii) Ten samples are measured to calculate the leakage rate and the amount of fecal skin adhesion.
<Test sample replacement time>
(Viii) For the test sample, measure the time when the urine and stool leakage is measured and then replaced with a new sample.
(Ix) 10 samples are measured and the exchange time is calculated.

  From this result, it was confirmed that the disposable sanitary product 1 of the present invention has a leakage rate and an adhesion amount of about 20 to 30% less than those of a conventional commercial product. In addition, it was confirmed that the replacement time can be carried out in one-third or less of that of a conventional commercial product and can be easily replaced.

  As described above, the disposable hygiene article according to the present invention has been specifically described with reference to the drawings showing examples. However, the present invention is not limited to the illustrated examples, and can be adapted to the above-described purpose. The present invention can be carried out with appropriate modifications, all of which are included in the technical scope of the present invention.

  For example, there are two openings, one for urination and one for defecation, as an opening formed in the underwear, an opening hole formed in the elastic body, and an opening formed in the absorbent article. Good.

It is a perspective view which shows embodiment of the disposable sanitary goods which concern on this invention. It is the II sectional view taken on the line of 1st Embodiment shown in FIG. It is a top view of the underwear which extended the embodiment shown in FIG. 1 back and forth. It is a perspective view which shows an elastic body. It is sectional drawing explaining the II-II line cross section in the state which attached the absorbent article to the underwear shown in FIG. It is the schematic which shows another Example of the method of attaching an absorbent article to underwear, (a) is a front side area side front view of underwear, (b) is a top view of an absorbent article. It is the schematic explaining further another Example of the method of attaching an absorbent article to underwear, (a) is the front area side front view of underwear, (b) is a top view of an absorbent article.

Explanation of symbols

1 Disposable hygiene products 2 Underwear (Disposable underwear)
3 Absorbent article 4 Front side area (front body)
5 Rear side (rear body)
6 Crotch region 7 Trunk opening 8 Leg opening 12 Urination opening 13 Defecation opening 14 Elastic body 15 Urination opening 16 Defecation opening 17 Housing part 18 Reclining cloth 21 Top sheet 22 Leakage prevention sheet 23 Absorption Core 24 first opening 25 second opening

Claims (9)

The crotch region is interposed between the front region and rear region, and elastic waist openings possess a pair of left and right leg opening and the waist direction, urination opening and / or stool in the crotch region And an opening hole that is disposed so as to surround the urination opening and / or the defecation opening and protrudes toward the body, and communicates with the urination opening and / or the defecation opening. A pants-shaped disposable undergarment comprising an elastic body, and a detachable attachment to the crotch region on the opposite body side of the disposable undergarment, with one end in the longitudinal direction positioned on the front side region side and the other end on the rear side A vertically long absorbent article located on the region side,
The absorbent article includes a top sheet, a leak-proof sheet, and an absorbent core included in the top sheet and the leak-proof sheet,
When the top sheet is attached to the disposable underwear, the urination opening and / or stool is disposed so that the absorbent core is exposed at a position corresponding to the urination opening and / or stool opening. A disposable sanitary article having an opening of approximately the same shape and size as the opening . Disposable underwear, disposable sanitary article according to claim 1, wherein said crotch region is one that is formed of a material having a stretchability in the direction of the rear area and said front area. The disposable sanitary article according to claim 1 or 2, wherein the disposable underwear is configured such that the crotch region is made of a hydrophobic material. The disposable sanitary article according to any one of claims 1 to 3 , wherein the stretching stress in the crotch region is smaller than the stretching stress in the waistline opening. The stretching stress in the crotch region is characterized in that, in a two-cycle tensile test, the tensile strength at 50% elongation for the second time is 10 N / 5 cm or less, and the tensile strength at 30% elongation is 7 N / 5 cm or less. The disposable sanitary article according to any one of claims 1 to 4 . The disposable sanitary article according to any one of claims 1 to 5 , wherein an elongation rate of the elastic body is smaller than an elongation rate of a material constituting the crotch region. 7. The rigidity of the elastic body according to any one of claims 1 to 6, wherein in the KES compression test, the compression resilience at the time of compression of 35 g / cm ² is 90 or more and the LC value is 1.2 or less. Disposable sanitary ware. The urination openings and / or defecation opening is claimed 7 claim 1, wherein the length of time of extending said crotch region is shorter than the length of said absorbent article Disposable sanitary ware. The disposable absorbent article according to any one of claims 1 to 8, wherein the absorbent article is attached to the crotch region by a rail chuck.

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