JP5270651B2 - Disposable absorbent article - Google Patents

Description

  The present invention relates to a disposable absorbent article for children, adults or incontinence.

  Conventionally, generally, a disposable absorbent article has a substantially square absorbent article body having a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body sealed between the two sheets. It is formed into a shape.

  And in order to prevent the leak from the edge part of the longitudinal direction of a disposable absorbent article, while forming a flap part in both the outer sides of the longitudinal direction of an absorber in Japanese Patent Application No. 2004-229599 specification etc., for example Side flap portions are formed on both outer sides in the width direction of the absorbent body, the absorbent article main body is folded with the liquid-permeable surface sheet as the inner side along the width direction center line, and at least the width direction of either one of the flap portions A configuration has been proposed in which portions including the center line are joined together to form a joined portion.

  In addition, as a disposable absorbent article having a stool storage function for collecting feces as excrement liquid, the liquid permeable surface facing the crotch part is folded with the liquid permeable surface sheet folded inward at the center line divided in the width direction. A disposable diaper in which sheets are joined to each other is known (for example, see Patent Document 1).

Japanese Unexamined Patent Publication No. 2000-116705 (page 3, FIG. 1-3)

  However, in the configuration proposed in the above-mentioned Japanese Patent Application No. 2004-229599 specification, when trying to pinch and attach the joint portion, the thickness of the joint portion is not sufficient because the flap portion is joined, The flap part may fall or bend and become pinched. Moreover, since the flap part is joined, this joined part becomes hard, and there is a possibility that a sense of incongruity may occur at the time of wearing.

  Furthermore, in the disposable absorbent article described in the above-mentioned Patent Document 1, since the joined portion of the liquid-permeable surface sheet is the crotch part, an uncomfortable feeling is caused at the time of wearing, and the absorption area in the vicinity of the urination part of the wearer is increased. By narrowing, there is a problem that the absorption of excretory fluid is deteriorated.

  This invention is made in view of such a point, and it aims at providing the disposable absorbent article which can be easily mounted | worn in a suitable position with respect to a wearer, without narrowing the absorption area in the urination part vicinity. To do.

The disposable absorbent article according to claim 1 is a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorber disposed between the liquid-permeable top sheet and the liquid-impervious back sheet. An absorbent article body in which both sides in the width direction and both ends in the longitudinal direction are formed, and a front part, a central part, and a rear part are sequentially formed in the longitudinal direction, and the front part and the rear part Each of the one side part is joined to each of the knob part provided along the center line in the width direction of the absorbent article main body and the width direction both sides of the absorbent article main body, The other side portion includes a pair of cuff portions having a free end shape on which an elastic member is disposed, and the absorbent body has both end portions located on the inner side of both longitudinal ends of the absorbent article body, The knob portion is the liquid-impervious back surface with the liquid-permeable top sheet facing inward. In a state where the folding said absorbent body at the width direction of the center line so as to be convex toward the over-up side, the liquid-pervious topsheet facing each other to each other near the edge of the absorbent body, the liquid permeation is formed by joining at configured fixed portion so as to secure the absorber via sexual topsheet, each cuff is joined to an end portion of at least the knob side the absorbent article body The joint portions to which the contraction force of the elastic member acts are respectively formed .

  The disposable absorbent article according to claim 2 is the disposable absorbent article according to claim 1, wherein the absorbent body is located on the liquid-permeable surface sheet side and the liquid-impermeable back sheet side. A second absorbent body, and a cutout portion is formed in either one of the front side portion and the rear side portion at substantially the center in the width direction of any one of the respective absorbent bodies. The liquid-permeable surface sheet is formed by joining portions corresponding to the notches.

A disposable absorbent article according to claim 3 is the disposable absorbent article according to claim 1 or 2, wherein the mark formed on the liquid-impervious back sheet along substantially the center in the width direction of the absorbent article main body. Is provided .

According to the first aspect of the present invention, in the state where the absorbent body is folded back at the center line in the width direction so that the liquid-permeable top sheet is inside and the liquid-impervious back sheet side is convex, the absorbent body is folded. When the wearer wears by attaching the picking part along the center line in the width direction of the absorbent article main body by joining the liquid-permeable surface sheets facing each other in the vicinity of the edge part at the fixing part. It can be easily worn by holding the knob, and the knob becomes a mark when wearing, and the wearer's body is aligned with the center of the wearer's body to the wearer. Easily attachable to an appropriate position, and by providing a knob on either the front or rear part, the absorption area at the central part located near the urination part is not reduced during wearing further knob wraps the absorbent, and liquid permeation Since the formed so as to secure the absorbent body via the surface sheet has the thickness than the other portions of the absorbent article main body, easy knob. Further, by joining each one side portion of the pair of cuff portions to each of the width direction both side portions of the absorbent article main body, and making each other side portion provided with the elastic member into a free end shape, these cuff portions Therefore, leakage in both directions can be prevented, and the contraction force of the elastic member acts on the joint portion, so that the knob portion side becomes a three-dimensional shape and the adhesion to the wearer can be improved .

  According to the invention described in claim 2, by forming a knob portion by joining a portion corresponding to a notch provided in either one of the first absorber and the second absorber constituting the absorber, The thickness of the absorber located in the knob can be suppressed, the knob can be easily formed, and the feeling of discomfort when worn by the knob can be suppressed, so that the wearing feeling is good. Since the part located in the central part located in the vicinity is not cut out, it is possible to prevent the absorption capacity from being lowered.

According to invention of Claim 3, the center position of the width direction of an absorbent article main body is formed by forming a mark part in a liquid-impermeable back sheet along the approximate center of the width direction of an absorbent article main body. The knob part and the mark part make it easier to understand and the position of the knob part can be confirmed more easily .

It is a perspective view which shows the disposable absorbent article of the 1st Embodiment of this invention. It is an expansion | deployment top view which notches and shows a disposable absorbent article same as the above. It is II sectional drawing of FIG. It is II-II sectional drawing of FIG. It is an expansion | deployment top view which notches and shows the disposable absorbent article of the 2nd Embodiment of this invention. It is III-III sectional drawing of FIG. It is IV-IV sectional drawing of FIG. It is VV sectional drawing of FIG. It is an expansion | deployment top view which notches some other embodiments of a disposable absorbent article same as the above, and shows. It is VI-VI sectional drawing of FIG. It is VII-VII sectional drawing of FIG. It is a perspective view which shows the disposable absorbent article of the 3rd Embodiment of this invention. It is a perspective view which shows other embodiment of a disposable absorbent article same as the above.

  Hereinafter, the configuration of the disposable absorbent article according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

  1 and 2 show a disposable absorbent article, and this disposable absorbent article includes a substantially rectangular absorbent article body 1 having a longitudinal direction and a width direction. Further, the absorbent article body 1 includes a liquid-permeable top sheet 2, a liquid-impervious back sheet 3, and an absorbent body 4 having liquid retention disposed between these sheets 2 and 3, In the unfolded state shown in FIG. 2, it is formed symmetrically with respect to the center in the width direction so as to be symmetrical with respect to the line, and has an elongated rectangular shape. Further, around the absorbent body 4 of the absorbent article main body 1, a flap portion 5 in which the liquid-permeable top sheet 2 and the liquid-impervious back sheet 3 are joined extends. And in the liquid-permeable surface sheet 2 of this absorbent article main body 1, the barrier cuffs 6 and 7 as a pair of cuff parts are arrange | positioned along both sides.

  Further, the absorbent article main body 1 has a front portion 11 on the abdomen side of the wearer and a notch recess 12 located around the legs on both sides along the longitudinal direction, and a center located at the crotch portion of the wearer. A portion 13 and a rear portion 14 on the back side of the wearer are sequentially formed. The absorbent article body 1 is provided with a knob 15 between the barrier cuffs 6 and 7 along the center line CL in the width direction.

  The liquid-permeable surface sheet 2 is formed of, for example, a woven fabric, a nonwoven fabric, a porous film, a synthetic fiber, or the like, and has liquid permeability so that excrement such as urine can pass through the absorber 4.

  The liquid-impervious back sheet 3 has an upper surface peripheral portion bonded to the lower surface peripheral portion of the liquid-permeable surface sheet 2 with an adhesive or the like. The liquid-impermeable back sheet 3 is liquid-impermeable so that urine cannot permeate, and is formed of a film-like sheet of synthetic resin such as polyolefin such as polyethylene resin.

  The absorber 4 is arranged line-symmetrically with the central portion in the longitudinal direction as the center, and is formed in an elongated rectangular shape with a line-symmetric shape with the central portion in the width direction as the center. Moreover, the absorber 4 is flat between the lower surface center part of the liquid-permeable surface sheet 2 and the upper surface center part of the liquid-impermeable back sheet 3 as shown in FIG. 3, as shown in FIG. The absorbent article main body 1 is disposed at a position including at least the central region in the longitudinal direction. Further, the absorbent body 4 is formed of a material that can absorb excrement such as urine, for example, pulp as a main material and partially containing a substance such as a polymer absorbent body. The absorbent body 4 has a longitudinal dimension and a width dimension smaller than those of the absorbent article main body 1 and is formed substantially along the outer shape of the absorbent article main body 1. Therefore, the longitudinal ends and the widthwise both sides of the absorbent body 4 are surrounded by the flap portions 5.

  The flap portion 5 is formed in a frame shape around the entire absorber 4.

  The barrier cuffs 6 and 7 are each formed in a longitudinal shape along the longitudinal direction of the absorbent article main body 1. The barrier cuff 6 has a left side shown in FIG. 2 joined to the left side of the absorbent article body 1 and a right side formed in a free end shape with the elastic member 16 disposed thereon. Similarly, the barrier cuff 7 is formed in a free end shape in which the right side portion shown in FIG. 2 is joined to the right side portion of the absorbent article main body 1 and the left side portion is provided with the elastic member 17. The barrier cuffs 6 and 7 are spaced apart from each other in the width direction of the absorbent article main body 1 at the free ends. Furthermore, the longitudinal ends of these barrier cuffs 6 and 7 are joined to the longitudinal ends of the liquid-permeable surface sheet 2 respectively, as shown in FIGS. 1 and 2, respectively. 24 is formed.

  The elastic members 16 and 17 are elastic members such as rubber thread, for example. The elastic members 16 and 17 are disposed between the longitudinal ends of the absorbent body 4 and extended in the longitudinal direction. For this reason, the contraction force of these elastic members 16 and 17 acts on the joints 21, 22, 23 and 24, and the barrier cuffs 6 and 7 are formed in a three-dimensional shape as shown in FIG. It is configured to stand up.

And the knob | pick part 15 becomes a knob | pick and a mark at the time of mounting | wearing of a disposable absorbent article, and although it may be provided in any of the front side part 11 and the rear side part 14 which are shown in FIG. In the embodiment, for the sake of convenience, the following description will be made assuming that the front portion 11 is provided. That is, as shown in FIGS. 1, 2, and 4, the knob 15 is configured so that the absorbent article main body 1 protrudes toward the liquid-impervious back sheet 3, in other words, the liquid-permeable top sheet 2. The end of the absorber 4 located in the front portion 11 in a state of being folded back at the center line CL in the width direction so as to be convex toward the liquid-impervious back sheet 3 side and having a substantially U-shaped cross section. The liquid-permeable surface sheets 2 facing each other in the vicinity of the part are joined together at the fixing part 26 . The fixing portion 26 is configured to fix the absorbent body 4 via, for example, the liquid-permeable surface sheet 2 .

  Here, the larger the protruding amount of the knob portion 15 is, the easier it is to pick, and it is easy to confirm as a mark. On the other hand, if it is too large, a sense of incongruity will occur at the time of wearing, and the absorption area by the absorber 4 will be reduced. . For this reason, it is preferable that the knob 15 has a small protruding amount in order to secure a function as a knob and a mark, without feeling uncomfortable at the time of wearing, and to further increase the absorption area by the absorber 4. Therefore, it is desirable that the absorber 4 positioned at least in the central portion 13 has a protruding amount that is not affected by the folding that forms the knob 15. For example, the protrusion amount of the apex portion of the knob 15 is 1/10 to 1/4 with respect to the longitudinal dimension of the absorber 4 of the front portion 11 or the rear portion 14 where the knob 15 is provided, A range of 1/20 to 1/5 with respect to the width direction dimension is preferable.

  Further, the fixing portion 26 forming the knob portion 15 may be formed by any method such as heat sealing, hot melt bonding, or ultrasonic bonding, but the absorber 4 is positioned on the fixing portion 26. Therefore, it is preferable to use a hot melt adhesive.

  Next, the function and effect of the first embodiment will be described.

  When manufacturing the disposable absorbent article, the absorbent article body 1 is folded back at the center line CL in the width direction so as to protrude toward the liquid-impervious back sheet 3 from the unfolded state shown in FIG. The liquid-permeable surface sheets 2 facing each other in the vicinity of the end portion of the absorbent body 4 located in the portion 11 are joined together by the fixing portion 26, and a knob is formed along the center line CL in the width direction of the absorbent article body 1. Form 15.

  The formation of the knob 15 allows the wearer to easily wear the knob 15 while wearing it, and the knob 15 serves as a mark when wearing the absorbent article. By aligning the centers of the main body 1 and the wearer's body, positional displacement in the wearing state can be prevented, and the wearer can be easily worn at an appropriate position.

  As a result, it is possible to reliably prevent leakage and the like due to the displacement in the wearing state of the disposable absorbent article with respect to the wearer.

  Further, by providing the knob portion 15 on the front side portion 11, the absorption area at the central portion 13 located near the urination portion of the wearer at the time of wearing is not reduced.

  Furthermore, since the knob | pick part 15 has folded and formed the absorber 4, it has thickness compared with the other part of the absorbent article main body 1, and is easy to pick.

  And each one side part of the barrier cuffs 6 and 7 is joined to each of the width direction both sides of the absorbent article main body 1, and each other side part which arrange | positioned the elastic members 16 and 17 is made into a free end shape. Thus, the barrier cuffs 6 and 7 can prevent leakage in both directions, and the contraction force of the elastic members 16 and 17 acts on the joints 21 and 23, so that the front part 11 on the knob part 15 side has a three-dimensional shape. Thus, the adhesion to the wearer can be improved.

  In addition, in the said 1st Embodiment, since the knob | pick part 15 is formed so that the absorber 4 may be folded back, since thickness becomes twice the other part of the absorbent article main body 1, periphery of the adhering part 26 The thickness of the absorbent body 4 may be previously made thinner than the thickness of the other portions, so that the thickness of the knob portion 15 does not become larger than necessary.

  Next, a second embodiment will be described with reference to FIGS. 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.

  In the disposable absorbent article according to the second embodiment, the absorbent body 4 includes an upper absorbent body 31 as a first absorbent body and a lower absorbent body 32 as a second absorbent body, and a knob 15 is provided. The upper absorbent body 31 is provided with a notch 33 at a portion of the absorbent article main body 1 that is being used, in the present embodiment, at the front portion 11.

  Each of the absorbent bodies 31 and 32 is formed thin as shown in FIGS. 6 to 8, the upper absorbent body 31 is positioned on the liquid-permeable surface sheet 2 side, and the lower absorbent body 32 is impermeable to liquid. The absorbent body 4 is overlapped with each other so as to be positioned on the conductive back sheet 3 side.

  Further, as shown in FIGS. 5 and 8, the notch 33 is notched and formed in a concave shape along the center line CL in the width direction from one end of the upper absorbent body 31 located in the front portion 11. Further, the notch 33 is formed in a width dimension smaller than the width dimension between the barrier cuffs 6 and 7.

  And the knob | pick part 15 is the front side part 11 in the state which turned up the absorbent article main body 1 in the centerline CL of the width direction so that it might protrude to the liquid-impermeable back sheet 3 side in the position of the notch part 33. The liquid-permeable surface sheets 2 facing each other in the vicinity of the end portion of the absorbent body 4 positioned at the same position are joined at the fixing portion 26.

  By forming the knob 15 as described above, the same effects as those of the first embodiment can be achieved in the second embodiment.

  In addition, a portion corresponding to the notch 33 provided on the upper absorbent body 31 is joined to form the knob 15 so that the knob 4 is folded back to form the knob 15 compared to the knob 15. The thickness of the absorbent body 4 positioned at 15 can be suppressed, the knob portion 15 can be easily formed, and the uncomfortable feeling at the time of mounting by the knob portion 15 can be suppressed, so that the wearing feeling is improved.

  Furthermore, since the absorber 4 is not cut out at the center portion 13 located in the vicinity of the urination portion of the wearer when worn, it is possible to prevent the absorption capacity from being lowered.

  In the second embodiment, as shown in FIGS. 9 to 11, even if the notch 33 in which the knob portion 15 is formed is provided in the lower absorbent body 32, the second embodiment and the second embodiment Similar effects can be obtained.

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

  In the disposable absorbent article according to the third embodiment, the knob portion 15 is provided with a mark portion 35. The mark portion 35 is formed on the liquid-impermeable back sheet 3 along the center line CL in the width direction of the absorbent article main body 1.

  In addition, if the mark portion 35 is formed to be narrow, the position of the knob portion 15 and the position of the mark portion 35 may be shifted in the width direction at the time of manufacture. At this time, the mark portion 35 is the absorbent article main body. Since there is a possibility of shifting from the center position of 1 to either side in the width direction, it is preferable to form it to be somewhat wide. In the present embodiment, the width of the mark portion 35 is set to be a width of ½ or more of the protruding amount of the knob portion 15, and the mark portion 35 is provided so as to include the apex of the knob portion 15. .

  Further, as the liquid-impermeable back sheet 3 provided with the mark portion 35, for example, a non-woven fabric is formed on the lower side of the film-shaped sheet, that is, on the opposite side to the liquid-permeable surface sheet 2 in addition to the film-shaped sheet such as polyethylene. In some cases, it may be difficult to see if the mark portion 35 is provided on the nonwoven fabric, and in any case, it is preferable to provide the mark portion 35 on the film-like sheet. Even in the case of a laminated liquid-impermeable back sheet, the mark part 35 is formed so as to be confirmed from above the nonwoven fabric.

  And according to the said 3rd Embodiment, like each said embodiment, the knob | pick part 15 is the center of the width direction so that the absorbent article main body 1 may protrude in the liquid-impermeable back sheet 3 side. Each of the above implementations is formed by joining the liquid-permeable surface sheets 2 facing each other in the vicinity of the end portion of the absorber 4 located in the front portion 11 at the fixing portion 26 in a state of being folded at the line CL. It is possible to achieve the same effect as that of the embodiment.

  Further, by forming the mark portion 35 on the liquid-impermeable back sheet 3 along substantially the center in the width direction of the absorbent article main body 1, the center position in the width direction of the absorbent article main body 1 is adjusted with the knob portion 15. The mark portion 35 makes it easier to understand and the position of the knob 15 can be confirmed more easily.

  Furthermore, by setting the width dimension of the mark portion 35 to a width dimension that is 1/2 or more of the protruding amount of the knob portion 15, the position of the knob portion 15 and the position of the mark portion 35 may be shifted in the width direction during manufacturing. The mark portion 35 can be reliably positioned at the center position of the absorbent article main body 1.

  Then, by providing the mark portion 35 so as to include the apex of the knob portion 15, the knob portion 15 can be confirmed more easily.

  In addition, in the said 3rd Embodiment, if the mark part 35 is formed along the approximate center of the width direction of the absorbent article main body 1, the center of the width direction so that the vertex of the knob | pick part 15 may be pinched | interposed, for example It is also possible to arrange them symmetrically in the width direction with respect to each other. In this case, since the mark portions 35 are disposed on both sides of the knob portion 15, the center position of the absorbent article body 1 and the knob portion 15 can be easily confirmed. In particular, as shown in FIG. When the mark portions 35 are located on both side wall portions of the portion 15, the pick portion 15 can be easily visually confirmed, and the pickability of the pick portion 15 is further improved.

In each of the above embodiments, the disposable absorbent article includes, for example, a pants-type diaper used as an outer, a developed diaper, or a pad-type diaper used as an inner when an outer or underwear is worn. Although not limited to any of them, in particular, the pad-type diaper is not fixed in the mounting position like the outer, and it is not easy to mount in the optimal position, and it may cause leakage due to the position shift. Therefore, it is effective to form the knob 15 and the like of the above embodiments .

DESCRIPTION OF SYMBOLS 1 Absorbent article main body 2 Liquid-permeable surface sheet 3 Liquid-impermeable back sheet 4 Absorber 6, 7 Barrier cuff as a cuff part
11 Front part
13 Center part
14 Rear part
15 Pick section
16, 17 Elastic member
21, 23 joints
26 Fastening part
31 Upper absorber as first absorber
32 Lower absorber as second absorber
33 Notch
35 Marking
CL center line

Claims (3)

It has a liquid-permeable surface sheet, a liquid-impervious back sheet, and an absorbent body disposed between the liquid-permeable surface sheet and the liquid-impervious back sheet, and has both sides in the width direction and both ends in the longitudinal direction. And an absorbent article body in which a front part, a central part and a rear part are sequentially formed in the longitudinal direction,
On either one of the front part and the rear part, a knob provided along the center line in the width direction of the absorbent article main body ,
Each one side part is joined to each of the widthwise both sides of the absorbent article main body, and each other side part includes a pair of cuff parts having a free end in which an elastic member is disposed,
Both ends of the absorbent body are positioned inside both ends in the longitudinal direction of the absorbent article main body,
The knob is formed by folding the absorbent body at the center line in the width direction so that the liquid-permeable top sheet is on the inner side and the liquid-impervious back sheet side is convex. The liquid-permeable surface sheets that are opposed to each other in the vicinity of the edge of the liquid- permeable surface sheet are joined to each other at a fixing portion that is configured to fix the absorbent body through the liquid-permeable surface sheet .
Each of the cuff parts is a disposable absorbent article in which at least an end part on a knob part side is joined to the absorbent article main body and a joint part on which a contracting force of the elastic member acts is formed . The absorber is
A first absorber located on the liquid-permeable surface sheet side;
A second absorbent body located on the liquid-impermeable back sheet side,
At the approximate center in the width direction of any one of the absorbers, a notch is notched in either the front part or the rear part,
The disposable absorbent article according to claim 1, wherein the knob is formed by joining portions corresponding to the notches of the liquid-permeable surface sheet. The disposable absorbent article according to claim 1 or 2, further comprising a mark portion formed on the liquid-impermeable back sheet along substantially the center in the width direction of the absorbent article main body .

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