JP4177777B2 - Disposable absorbent article - Google Patents

Description

  The present invention relates to a pants-type disposable absorbent article, for example, for adults or for incontinence.

Conventionally, this type of disposable absorbent article includes a substantially rectangular absorbent article body in which an absorbent body is disposed between a liquid-permeable top sheet and a liquid-impervious back sheet. In this absorbent article body, a back waist portion, a pair of leg portions and a ventral waist portion are sequentially formed along the longitudinal direction. And this absorbent article body, the both sides in the width direction of the back side waist part and the both sides in the width direction of the abdominal side waist part are joined to each other, a waist part opening part and a pair of leg part opening parts, It is formed in the pants shape which has. Further, elastic bodies are respectively disposed in the waist opening and the pair of leg openings so as to expand and contract over the entire circumference. And in the absorbent article body, in order to reduce the volume of dust during disposal after use, a disposal tape for compactly fixing together is either of the liquid-impervious back sheet. It arrange | positions at the position (for example, refer patent document 1).
Japanese Patent No. 3021446 (page 2-4, FIG. 1)

  However, in the above-mentioned disposable absorbent articles, although there is a certain effect on the disposal tape, most of them only have one disposal tape arranged in the center in the width direction, so it is not possible to fix it sufficiently at the time of disposal Or, there are cases where it cannot be compactly put together in various situations, and there is a problem that the waste becomes bulky and increases.

  This invention is made | formed in view of such a point, and it aims at providing the disposable absorbent article which can make the disposal processing after use easy, and can be put together compactly after use reliably.

The disposable absorbent article according to claim 1 is a liquid-permeable top sheet, a liquid-impervious back sheet disposed on the back side of the liquid-permeable top sheet, and the liquid-permeable top sheet and the liquid-impervious sheet. An absorbent article provided with an absorbent body disposed between the liquid back sheet and having a longitudinal direction and a width direction, a fixing part fixed to the liquid-impermeable back sheet, and a fixing part And a rectangular disposal tape for disposal when provided with a free end having an adhesive layer for disposal when disposed, and the adhesive layer is fixed to the free end. And the free end portion is attached to the fixed portion in a state where the free end portion is folded back with respect to the fixed portion, and the free end portion can be temporarily fixed to the fixed portion. A side waistline, a pair of legs, and a ventral waistline are formed sequentially in the longitudinal direction. In addition, both sides in the width direction of the back waistline and the abdomen waistline are joined to form a pants shape having an upper waistline opening and a pair of lower leghole openings. The disposal tape is provided in the waistline opening along the longitudinal direction of the absorbent article body on both sides in the width direction of at least one of the back waistline and the ventral waistline. with inclined to the width direction center side toward the part side, before Symbol said free end and said free end portion from the temporarily fixed state is released in the longitudinal direction is positioned upward relative to the fixed part Are respectively arranged.

Then, a rectangular disposal tape for fastening at the time of disposal provided with a fixed portion secured to the liquid-impervious back sheet and a free end portion having a pressure-sensitive adhesive layer for disposal at the time of disposal is provided with a back waist portion and an abdomen. While tilting toward the center of the width direction toward the waist opening side along the longitudinal direction of the absorbent article body on both sides in the width direction of at least one of the side waist and the free waist and the fixed portion are formed by return Ri folding, that the free end portion from the temporarily fixed state is respectively arranged such that the free end portion when it is opened in the longitudinal direction is positioned upwardly with respect to the fixed part , The fastening force when the absorbent article body is rounded and fixed with a disposal tape is improved, and it becomes possible to secure a sufficient fastening force to facilitate disposal after use. Since the free end is located above the absorbent article body, When rounding the product, the leg part side of the absorbent article body can start to be rounded, and the absorbent body arranged in the vicinity of the leg part becomes the inside, and excrement etc. leaks at the time of disposal, etc. Since the waste tape is inclined toward the waist opening side along the longitudinal direction toward the center in the width direction, the free end opened from the fixing portion is in the width direction of the absorbent article body. Because it goes to the center, even when it is discarded, even if the adhesive layer of one of the disposal tapes is temporarily peeled off from the absorbent article body, the width of the absorbent article body that the other disposal tape is rolled It is possible to fix the absorbent article body in a compact manner, for example, it can be fixed in the vicinity of the center of the direction and the spread of the rolled up absorbent article body can be prevented.

  The disposable absorbent article according to claim 2 is the disposable absorbent article according to claim 1, wherein in the disposal tape, one side surface of the fixing portion is fixed to the liquid-impermeable back sheet, and a free end portion is the fixing portion. 1 side surface of the free end portion is opposed to the other side surface of the fixed portion, one side surface of the adhesive layer is disposed on the other side surface of the free end portion, and peeled off from the other side surface of the adhesive layer Possible peeling members are provided.

Then, one side surface of the adhesive layer is disposed on the other side surface of the free end portion that is folded back so that one side surface faces the fixed portion, and a peelable peeling member is disposed on the other side surface of the adhesive layer. Then, when the free end is opened in the state where the peeling member is peeled off, the adhesive layer faces the liquid-impervious back sheet side, so that the absorbent article body can be more fixed and the free end Even if it is not opened to the fixed part, it is possible to use the disposal tape only by peeling the peeling member .

According to the first aspect of the present invention, the rectangular disposal tape for fastening at the time of disposal comprising a fixed portion fixed to the liquid-impermeable back sheet and a free end portion having an adhesive layer for fastening at the time of disposal. Are disposed on both sides in the width direction of at least one of the back waist part and the abdomen waist part so that the free ends are open along the longitudinal direction. The fastening force when the body is discarded and fixed with a disposal tape has been improved, ensuring a sufficient fastening force to facilitate disposal after use, and the free end is positioned above the fixing part. Therefore, when the absorbent article body is rolled up at the time of disposal of the absorbent article body, the leg circumference side of the absorbent article body can be started to be rounded, and the absorbent body arranged in the vicinity of the leg circumference section Becomes inside and can prevent the excrement etc. from leaking at the time of disposal. Since the loop is inclined along the longitudinal direction toward the waist opening side toward the center in the width direction, the free end portion released from the fixing portion is directed toward the center in the width direction of the absorbent article body. In the case of disposal, even if the adhesive layer of one of the disposal tapes is temporarily peeled off from the absorbent article body that is rounded, the absorbent article body that the other disposal tape is rounded is disposed near the center in the width direction. The absorbent article body can be surely gathered in a compact manner , such as being able to be fixed and preventing the spread of the rolled up absorbent article body .

According to the second aspect of the present invention, one side surface of the adhesive layer is disposed on the other side surface of the free end portion that is folded back so that one side surface faces the fixed portion, and the other side surface of the adhesive layer can be peeled off. By disposing a separate release member, when the free end is opened with the release member peeled off, the adhesive layer faces the liquid-impervious back sheet side, so that the absorbent article body can be fixed more easily. At the same time, the disposal tape can be used only by peeling off the peeling member without opening the free end to the fixed part .

Hereinafter, the configuration of the disposable absorbent article according to the first prerequisite technology of the present invention will be described with reference to FIGS. 1 to 3.

  In FIG. 1, the disposable absorbent article is a disposable paper diaper, for example, and includes a substantially rectangular diaper body 1 as an absorbent article body. This diaper body 1 is worn along the body from the back side to the abdomen side of a wearer, such as a sick person or an incontinence person, from the unfolded state shown in FIG. 1 to the pants shape shown in FIG. . Moreover, this diaper body 1 has a liquid-permeable top sheet 2 having liquid permeability, a liquid-impervious back sheet 3 having liquid permeability, and the liquid-permeable surface sheet 2 and liquid-impervious back sheet. 3 is formed in a layer shape with an absorbent body 4 disposed between the liquid absorber 3 and the liquid absorbent. Further, the diaper body 1 is formed with a back waist part 5, a crotch part 6 and an abdomen waist part 7 in the longitudinal direction along the longitudinal direction. As shown in FIG. 2, the diaper body 1 is formed in a pants shape having a waist opening 8 and a pair of leg openings 9 by joining both sides in the width direction with the periphery 7. Is done.

  The liquid-permeable surface sheet 2 is formed of a sheet material that has liquid permeability and air permeability and feels close to underwear, such as woven fabric, nonwoven fabric, porous film, or synthetic fiber, and excreted liquid such as urine. Is transmitted to the absorbent body 4 and does not cause discomfort even if it is in direct contact with the body.

  The liquid-impervious back sheet 3 is formed of a liquid-impervious and breathable sheet material such as a synthetic resin such as polyethylene (polyethylene) resin and is attached to the back side of the liquid-permeable front sheet 2. In addition, the urine or other excretory liquid prevents other clothing such as underwear or sheets from being stained.

  The absorber 4 is formed in a rectangular sheet shape with a material mainly including pulp and partially including a material such as a polymer absorber, and sufficiently absorbs excretory fluid such as urine. And as for this absorber 4, the liquid-permeable surface sheet 2 and the liquid-impervious back sheet 3 are bonded together so that the liquid-permeable surface sheet 2 and the liquid-impervious back sheet 3 are bonded to each other. It is sealed between.

  The dorsal waist part 5 is formed on one end side in the longitudinal direction of the diaper body 1 in the unfolded state, and the diaper body 1 is appropriately bent from the unfolded state so as to be positioned on the back side of the wearer's waist. It has become. In addition, a plurality of back-side elastic bodies 11 located on the back side of the wearer are disposed in the back-side waist portion 5 along the width direction. These back-side elastic bodies 11 are members that can be stretched, such as string-like rubber, and impart stretchability in the width direction over the entire region of the back-side waist portion 5. Further, unillustrated dorsal coupling portions are formed at both outer edges of the dorsal waist portion 5.

  The crotch part 6 is integrally formed continuously in the longitudinal direction side of the diaper body 1 from the back waist part 5 to the abdomen waist part 7 in the middle part in the longitudinal direction in the deployed state. The diaper body 1 is appropriately bent from the state, and is a portion located on the crotch of the wearer. Further, on both sides of the crotch part 6, leg leg parts 12 forming leg leg openings 9 are cut out in an arc shape.

  The abdominal side waist part 7 is continuously formed integrally with the other side opposite to the back side waist part 5 of the crotch part 6 in the longitudinal direction of the diaper body 1 in the unfolded state. The body 1 is bent as appropriate to become a portion located on the abdomen side of the wearer's waist.

  In addition, a plurality of abdominal elastic bodies 13 located on the entire abdomen side of the wearer are arranged in the abdomen waist portion 7 along the width direction. These ventral elastic bodies 13 are stretchable members such as string-like rubber, for example, and impart stretchability in the width direction over the entire region of the ventral waist portion 7. Further, both end portions of the ventral elastic body 13 are respectively connected to both end portions of the back elastic body 11 in a state where the diaper body 1 is formed in a pants shape.

  Further, a ventral side coupling portion (not shown) joined to the back side coupling portion of the back side waistline portion 5 is provided in the vicinity of both outer side portions of the ventral side waistline portion 7. And the diaper body 1 is formed in the underpants shape shown in FIG. 2 by joining these ventral side coupling | bond parts with a back side coupling | bond part.

  Further, as shown in FIG. 1, a plurality of waist elastic bodies 15 are disposed between the liquid-permeable top sheet 2 and the liquid-impervious back sheet 3 in the waist portions 5 and 7. ing. These waist elastic bodies 15 are elastic members such as string-like rubber, for example, and stretch around the entire circumference of the waist opening 8 by the waist elastic bodies 15 and the elastic bodies 11 and 13. Sex is imparted.

  In the vicinity of both leg portions 12, leg-around elastic bodies 16 are disposed between the liquid-permeable top sheet 2 and the liquid-impervious back sheet 3, respectively. These leg-hole elastic bodies 16 are elastic members such as string-like rubber, for example, and are arranged over the entire circumference of the leg-hole opening 9 to impart elasticity to the leg-hole portion 12, thereby The turning part 12 is formed in the gather part.

Then, both sides of the width direction of the ventral waist part 7, the outer side of the non-liquid-permeable back sheet 3, a rectangular waste tape 17 respectively are disposed one by one. These disposal tapes 17 are directed from both sides of the diaper body 1 in the width direction, that is, from the portion where the back waist part 5 and the abdomen waist part 7 are joined together toward the center part of the diaper body 1 in the width direction. For example, it is preferable to dispose in a portion that is about 1/3 inside. This is because if the disposal tape 17 is disposed on both side edges of the diaper body 1 in the width direction, the central portion of the rolled diaper body 1 cannot be fixed, and the disposal tape 17 is placed at the center of the diaper body 1 in the width direction. This is because when arranged, both sides of the rolled diaper body 1 cannot be fixed.

  Further, these disposal tapes 17 are arranged at positions symmetrical with each other with respect to the center line in the width direction of the diaper body 1. Furthermore, these disposal tapes 17 are disposed in the longitudinal direction along the longitudinal direction of the diaper body 1 and are parallel to each other.

  Then, as shown in FIG. 3, the disposal tape 17 includes a fixing portion 21 having one side surface fixed to the liquid-impermeable back sheet 3, and one end portion in the longitudinal direction of the fixing portion 21 such as an upper end portion. And a free end portion 22 that is folded back into a free end shape.

  The fixing part 21 is provided with a fixing layer 23 between one side surface and the liquid-impermeable back sheet 3, and the fixing part 21 is fixed to the liquid-impermeable back sheet 3 by the fixing layer 23.

  The free end portion 22 is folded back in the width direction of the fixed portion 21 so that one side surface faces the other side surface of the fixed portion 21, and an adhesive layer 24 is provided on one side surface facing the fixed portion 21. ing. Therefore, the disposal tape 17 is formed in a substantially U-shaped half-fold shape in a sectional view. In addition, the other side surface opposite to the liquid-impervious back sheet 3 of the fixing portion 21 is subjected to a peeling treatment so that the adhesive layer 24 is not stuck.

  Then, the adhesive layer 24 is fixed to the free end portion 22 side, and in a state where the free end portion 22 is folded back with respect to the fixed portion 21, it is stuck to the fixed portion 21 and the free end portion 22 is fixed to the fixed portion 21. It is temporarily fixed.

Next, the operation of the first prerequisite technique will be described.

  At the time of wearing, the diaper body 1 is formed in the pants shape shown in FIG. 2 by joining the widthwise sides of the back waist part 5 and the abdomen waist part 7 from the unfolded state shown in FIG. Wear it so that you can wear it.

  Then, after use, the diaper body 1 is removed from the wearer, the folding of the free end 22 of each disposal tape 17 with respect to the fixed portion 21 is opened upward, and the adhesive adhered to the free end 22 After the layer 24 is exposed, the diaper body 1 is rolled up in a cylindrical shape from the leg part 12 side to the abdomen waist part 7 side, and the adhesive layer 24 is placed on the liquid-impermeable back sheet 3 by the free end part 22. Affix and affix to and discard.

As described above, according to the first premise technique , the disposal tape 17 to be worn at the time of disposal is disposed on both side portions in the width direction of the abdomen waistline portion 7 and the free end portion 22 along the longitudinal direction. By disposing each one so as to be opened, for example, as compared with the case where one disposal tape 17 is disposed at the center of the diaper body 1 in the width direction, the disposal tape is rounded when the diaper body 1 is disposed. The fastening force at the time of fixing with 17 can be improved, a sufficient fastening force can be ensured to facilitate disposal after use, and the diaper body 1 can be securely packed compactly.

  In addition, since the diaper body 1 is rolled up and fixed by the disposal tape 17, it can be discarded, so that it is possible to prevent the hands from becoming dirty due to excrement or the like.

  Further, the free end 22 of the disposal tape 17 is formed by folding back from the upper end of the fixed part 21 so that when the free end 22 is opened, the free end 22 is located above the fixed part 21. When the diaper body 1 is rolled up when the diaper body 1 is discarded, the leg periphery 12 side of the diaper body 1 can be started to be rounded, so that the absorber 4 disposed in the vicinity of the leg periphery 12 is inside. Thus, it is possible to more reliably prevent the excrement from leaking at the time of disposal.

  And since the diaper body 1 can be packed together compactly, the diaper body 1 is not bulky and the amount of garbage can be reduced.

  Further, by making the free end portion 22 of the disposal tape 17 open in the longitudinal direction, the workability when the diaper body 1 is rounded from the leg periphery 12 side and fixed with the disposal tape 17 can be improved. .

  Furthermore, by disposing the disposal tapes 17 positioned on both sides of the diaper body 1 in parallel with each other, it is possible to prevent the disposal tape 17 from impairing the appearance of the diaper body 1.

In the first prerequisite technology , the configuration shown in FIG. 4 may be adopted. That is, the disposal tape 17 is folded from one end portion in the longitudinal direction of the fixing portion 21, the intermediate portion 25, the fixing layer 26 that fixes the intermediate portion 25 and the fixing portion 21 to each other, and the intermediate portion 25 from the intermediate portion 25. It is provided with a free end portion 22 that is folded back in the opposite direction to the intermediate portion 25, and an adhesive layer 24 is provided on the other side of the free end portion 22 that does not face the intermediate portion 25, and is discarded. It is also possible to adopt a configuration in which the tape 17 has a substantially Z-shape, that is, a three-fold shape in a cross-sectional view. In this case, it is possible to achieve the same effects as the first base technology.

  As shown in FIG. 5, three disposal tapes 17 may be arranged on both side portions in the width direction of the diaper body 1 and in the center portion in the width direction. In this case, when the diaper body 1 is discarded, the diaper body 1 can be more securely attached by the disposal tape 17 at both sides and the center in the width direction.

Furthermore, in the first embodiment of the present invention shown in FIG. 6 , each disposal tape 17 is centered in the width direction of the diaper body 1 toward the waist opening 8 along the longitudinal direction of the diaper body 1. parts to an inclined shape, i.e. configured be disposed upward toward the inner edge 26b thereof shaped. In this case, since the free end portion 22 opened from the fixing portion 21 goes to the center portion in the width direction of the diaper body 1, the adhesive layer 24 of one of the disposal tapes 17 is rounded when discarded. Even if the diaper body 1 is peeled off, the diaper body 1 rolled by the other disposal tape 17 can be fixed in the vicinity of the center in the width direction, so that the spread of the rounded diaper body 1 can be prevented.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, a fixing layer 31 that temporarily fixes the free end 22 to the fixed portion 21 is disposed between the free end 22 and the fixed portion 21. An adhesive layer 24 is disposed on the side surface of the free end 22 opposite to the fixing portion 31, and a peeling member 32 is disposed on the side surface of the adhesive layer 24 opposite to the free end portion 22. ing.

  The fixing layer 31 temporarily fixes the free end 22 to the fixed portion 21 so that the fixed portion 21 and the free end 22 can be peeled off when the disposal tape 17 is used.

  Further, the peeling member 32 is peeled on the side surface on the free end portion 22 side, and can be peeled off when the disposal tape 17 is used.

  When the diaper body 1 is discarded, the peeling member 32 is peeled off, and the adhesive layer 24 is applied to the liquid-impermeable back sheet 3 of the diaper body 1 that is rolled from the leg part 12 side to the waist opening part 8 side. Is attached and the diaper body 1 is fastened.

  As described above, according to the second embodiment, the rounded diaper body 1 is fastened by the disposal tape 17 disposed on both sides in the width direction of the diaper body 1, thereby The same operational effects as those of the first embodiment can be obtained.

  In addition, an adhesive layer 24 is provided on the side surface of the free end 22 opposite to the fixed portion 21, and a peelable peeling member 32 is provided on the side surface of the adhesive layer 24 opposite to the free end portion 22. Thus, when the free end portion 22 is released from the fixing portion 21 in a state where the peeling member 32 is peeled off, the adhesive layer 24 faces the liquid-impervious back sheet 3 side, that is, the inner side. Diaper body 1 as compared with the case where the adhesive layer 24 is disposed between the fixed portion 21 and the free end portion 22 and the adhesive layer 24 faces outward when the free end portion 22 is opened. Can be disposed of more compactly.

  Further, the disposal tape 17 can be used only by peeling off the peeling member 32 without opening the free end portion 22 to the fixed portion 21.

  In the second embodiment, the fixed portion 21 and the free end portion 22 have a configuration in which a peeling process is performed on one side and a fixing layer 31 is disposed on the other side, for example, the free end portion 22 side of the fixed portion 21 It is also possible to adopt a configuration in which the side surface is subjected to a peeling treatment and the fixing layer 31 is disposed on the side surface of the free end portion 22 on the fixed portion 21 side. In this case, in addition to the adhesive layer 24 provided on the free end 22, the fixing layer 31 can also be used as an adhesive part to be worn at the time of disposal. The diaper body 1 can be surely gathered in a compact manner.

  Further, the disposal tape 17 may be configured such that the free end portion 22 is folded upward from the lower end portion of the fixed portion 21. In this case, when the diaper body 1 is discarded, the diaper body 1 is rounded from the waist opening 8 side to the leg periphery 12 side and fixed with a disposal tape 17.

Further, the peeling member 32 may be provided with a mark such as printing. In this case, for example, the front and back of the diaper body 1 having a pants shape can be easily identified visually, and when the disposal tape 17 is used, the peeling member 32 is peeled after the diaper body 1 is used. Whether the body 1 is unused or used can be easily determined visually .

  In each of the above embodiments, the disposal tape 17 is disposed on the abdominal waist part 7, but is disposed on the back waist part 5 or on each waist part 5, 7. It can also be set as the structure to install.

It is a top view which shows the expansion | deployment state of the disposable absorbent article of the 1st premise technique of this invention. It is a perspective view which shows a disposable absorbent article same as the above. It is a vertical side view which shows a disposable absorbent article same as the above. It is a vertical side view which shows the other premise technique of a disposable absorbent article same as the above. It is a perspective view which shows the other premise technique of a disposable absorbent article same as the above. It is a perspective view which shows 1st Embodiment of the disposable absorbent article of this invention . It is a vertical side view which shows the disposable absorbent article of the 2nd Embodiment of this invention .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Diaper body as absorbent article body 2 Liquid-permeable surface sheet 3 Liquid-impermeable back sheet 4 Absorber 5 Back side waist part 7 Abdominal side waist part
8 waist opening
9 leg opening
12 Leg circumference
17 Waste tape
21 Fixed part
22 Free end
24 Adhesive layer
32 Release material

Claims (2)

Liquid-permeable surface sheet, liquid-impervious back sheet disposed on the back side of the liquid-permeable surface sheet, and disposed between the liquid-permeable surface sheet and the liquid-impermeable back sheet An absorbent article having a longitudinal direction and a width direction,
A rectangular shape for fastening at the time of disposal provided with a fixed portion fixed to the liquid-impermeable back sheet, and a free end portion having an adhesive layer for fastening at the time of disposal provided to the fixed portion. A disposal tape,
The adhesive layer is fixed to the free end portion, and the free end portion can be temporarily fixed to the fixed portion by being attached to the fixed portion with the free end portion folded back with respect to the fixed portion. And
The absorbent article body is
A back side waist part, a pair of leg parts, and a ventral side waist part are sequentially formed in the longitudinal direction, and both sides in the width direction of the back side waist part and the abdominal waist part are respectively It is joined and formed into a pants shape having an upper waist opening and a pair of lower leg openings,
The disposal tape is disposed on both sides in the width direction of at least one of the back waist portion and the abdominal waist portion along the waist opening side along the longitudinal direction of the absorbent article body. with inclined to the width direction center side toward the front SL as the free end and the free end portion is opened in the longitudinal direction from the temporarily fixed state is located above with respect to the fixed part Disposable absorbent articles characterized by being disposed respectively. The disposal tape
One side of the fixed part is fixed to the liquid-impermeable back sheet,
A free end portion is formed from the fixed portion so that one side surface of the free end portion faces the other side surface of the fixed portion;
One side of the adhesive layer is disposed on the other side of the free end,
The disposable absorbent article according to claim 1, wherein a peelable peeling member is disposed on the other side surface of the adhesive layer.

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