JP2007097646A - Absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorbent article adaptable to the difference in the position or direction of excretion. <P>SOLUTION: The absorbent article comprises a movable sheet 30 with a fixed part 31 fixed to an exterior sheet 20 and an unfixed part 33 movable to the fixed part 31 between an absorbent body 10 and the exterior sheet 20, and the absorbent body 10 is attached to a moving part 34 of the unfixed part 33 of the movable sheet 30. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an absorbent article such as an incontinence absorbent article, a disposable diaper, and a sanitary napkin, particularly an absorbent article suitable for men.

Conventionally, pad-type articles have been widely used as absorbent articles for incontinence. In particular, as an article intended for men, a generally triangular article that wraps from the penis to the scrotum has also been proposed (see Patent Document 1). ).
However, in the conventional absorbent article, since it was held by the idea of fixing the absorber, the excretion position and direction can easily be changed like the penis or individual differences are large, and leakage is not possible. There was a problem that it was likely to occur.
Japanese Patent No. 3367664

  Then, the main subject of this invention is providing the absorbent article which can respond to the difference in an excretion position, a direction, etc.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
In an absorbent article consisting of an absorbent main body including an absorbent body and an exterior sheet integrally provided on the outer surface side of the absorbent main body,
A sheet-like moving portion that extends parallel to the exterior sheet and is movable along the exterior sheet;
The absorber is attached to the moving part,
An absorbent article characterized by the above.

(Function and effect)
In the present invention, the absorber is attached to a sheet-like moving portion that extends in parallel to the exterior sheet (that is, does not stand up with respect to the exterior body) and is movable along the exterior sheet. Therefore, the absorber can move along the exterior sheet together with the moving part.
Therefore, for example, when a man wears, the position of the absorber can be moved in accordance with the position and direction of the penis, and even if the penis moves after wearing, the absorber moves following the movement of the penis. Can do. As a result, in the present invention, it is possible to cope with differences in the excretion position, direction, etc., and it is less likely to leak than before.
Further, in the present invention, since the moving part extends in parallel with the exterior sheet, as will be apparent from the examples described later, there are also advantages such as the use of an existing sheet and ease of manufacture. It is.

<Invention of Claim 2>
Between the absorber and the exterior sheet, there is provided a movable sheet having a stationary part fixed to the exterior sheet and a non-fixed part movable relative to the stationary part,
The absorbent article according to claim 1, wherein the moving part is formed by a non-fixed part of the moving sheet.

(Function and effect)
This form is a form in which the moving part is formed by using an existing sheet between the absorber and the exterior sheet or by using a dedicated sheet. The absorber can move relative to the fixed part with the non-fixed part of the moving sheet.

<Invention of Claim 3>
The exterior sheet has an extending portion that extends to at least one of the front side and the rear side of the absorber,
There is provided a mounting sheet having a fixed portion fixed to the extending portion, and a non-fixed portion that covers the end of the absorbent body on the extending portion side and is movable with respect to the fixed portion. And
The absorbent article according to claim 1, wherein the moving part is formed by a non-fixed part of the mounting sheet.

(Function and effect)
In this embodiment, the moving part is formed by using a mounting sheet provided at the same position as the seat for preventing so-called front and rear leakage (leakage from the ventral end or back end). . The absorber can move relative to the fixed part with the non-fixed part of the mounting sheet.

<Invention of Claim 4>
The exterior sheet is folded from the outer surface side to the inner surface side at at least one end of the article,
The folded portion has a fixed portion fixed to the outer surface side portion at the base end portion and a non-fixed portion movable to the fixed portion at the distal end portion, respectively.
The absorbent article according to claim 1, wherein the moving part is formed by an unfixed part of the folded part.

(Function and effect)
In a pants-type paper diaper or the like, a structure is known in which an exterior sheet is folded back from the outer surface side to the inner surface side at the front and rear ends, and an elastic elastic member such as rubber thread is sandwiched between the outer surface side and the inner surface side. In this case, the present embodiment forms the moving part using the folded portion. The absorber can move with respect to the fixed part with the non-fixed part of the folded portion of the exterior sheet.

<Invention of Claim 5>
The absorbent main body is provided with a liquid-impermeable sheet on the outer surface side of the absorber,
The liquid-impervious sheet has a fixed portion fixed to the exterior sheet and a non-fixed portion that is movable with respect to the fixed portion.
The absorbent article according to claim 1, wherein the moving part is formed by a non-fixed part of the liquid-impermeable sheet.

(Function and effect)
In the absorbent article, a structure including a liquid-impermeable sheet on the outer surface side of the absorber is widely adopted. This form forms a moving part using this liquid-impermeable sheet. The absorbent body can move relative to the fixed part with the non-fixed part of the liquid-impermeable sheet.

<Invention of Claim 6>
The absorbent article according to any one of claims 2 to 5, wherein a folded portion is formed between the moving portion and the fixed portion in the sheet having the moving portion.

(Function and effect)
If comprised in this way, a movement part will move with respect to a fixed part, when a folding | returning part spreads or a folding position changes. Therefore, a movement range can be expanded compared with the case where there is no folding | turning part.

<Invention of Claim 7>
The absorbent article according to any one of claims 2 to 6, wherein the sheet having the moving part is one in which the moving part moves when part or the whole of the sheet elastically expands and contracts.

(Function and effect)
As described above, when the moving portion is moved by the elastic expansion and contraction of the sheet, the moving range can be expanded as compared with the case where the elastic portion does not elastically expand and contract.

  As described above, according to the present invention, there are advantages such as being able to cope with differences in excretion positions and directions.

Hereinafter, based on the example of application to an underpants type absorbent article, an embodiment of the present invention will be described first with respect to a common configuration and then with respect to features of various forms.
FIG. 1 is a product state appearance view of a pants-type absorbent article 1 according to the embodiment, and FIG. 2 is an assembly view in a developed state. This pant-type absorbent article 1 (hereinafter also simply referred to as an article) is made of a cotton-like pulp or the like between a liquid-permeable surface sheet 11 made of nonwoven fabric or the like and a liquid-impermeable sheet 12 made of polyethylene or the like. The absorbent body 10 includes an absorbent body 13 and an exterior sheet 20 provided integrally with the outer surface of the absorbent body 10. In manufacturing, after the absorbent main body 10 is integrated with the upper surface side (inner surface side) of the exterior sheet 20, the absorbent main body 10 and the exterior sheet 20 are folded in the front-rear direction, and both sides thereof are mutually connected. By joining by heat welding or hot melt adhesive, a pants-type absorbent article having a waist opening and a pair of left and right leg openings is formed.

Hereinafter, the absorbent main body 10 and the exterior sheet 20 will be described in this order.
(Absorbent body structure)
As shown in FIG. 5 and FIG. 7, the absorbent main body 10 has an absorbent body such as cotton pulp between a liquid-permeable surface sheet 11 made of nonwoven fabric and the liquid-impermeable sheet 12 made of polyethylene or the like. 13 is interposed to absorb and retain body fluids.

  As the liquid-permeable surface sheet 11 that covers the surface side (skin contact surface side) of the absorbent body 13, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. The material fibers that make up the nonwoven fabric can be synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, and polyamides, recycled fibers such as rayon and cupra, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft. When a large number of through holes are formed in the liquid-permeable surface sheet 11, urine and the like are quickly absorbed, and the dry touch property is excellent. The liquid-permeable surface sheet 11 is wound around the side edge of the absorbent body 13 and extends to the back surface side of the absorbent body 13.

  As the liquid-impervious sheet 12 covering the back side (non-skin contact surface side) of the absorbent body 13, a liquid-impervious plastic sheet such as polyethylene or polypropylene is used. What has is used suitably. This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. If the sheet thickness is the same, the rigidity is lower than that of the non-porous sheet, which is superior in terms of flexibility.

  The absorber 13 is preferably formed by molding a fluffy pulp and a water-absorbing polymer. The water-absorbing polymer can be mixed in the pulp constituting the absorber, for example, as a granular powder. Pulp includes cellulose fibers such as chemical pulp and dissolved pulp obtained from wood, and artificial cellulose fibers such as rayon and acetate. It can use suitably in terms of. Of course, other known absorbers can also be used. Further, the absorbent body 13 can be wrapped with a liquid-permeable sheet 14 such as crepe paper as necessary for maintaining the shape and improving the diffusibility of the body fluid that has passed through the liquid-permeable surface sheet 11. The shape of the absorber 13 can be a shape in which the width of the crotch portion is narrower than the back side and the abdominal side as shown in the drawing, or a rectangular shape.

  On the other hand, it is preferable that a solid gather BS that fits around the legs is formed on both sides of the absorbent main body 10. This three-dimensional gathered BS is formed by the gathered nonwoven fabric 15. As the gathered nonwoven fabric, as shown in FIG. 6, a nonwoven fabric made into a double sheet by folding is preferably used and is wound by the liquid-permeable surface sheet 11. The side edge portion of the absorbent body 13 is further rolled up from the upper side thereof and extends to the back surface side of the absorbent body 13 to be bonded. More specifically, the gathered nonwoven fabric 15 has a three-dimensional gather BS forming portion at the intermediate portion in the longitudinal direction of the absorbent article 1 and a range from the intermediate portion in the width direction to the back side of the absorbent body 13 is a hot melt adhesive or the like. In the longitudinal front and rear end portions, the section from the intermediate portion in the width direction to the one side end edge is bonded in the range extending to the back side of the absorber 13, and the portion forming the three-dimensional gather BS is absorbed by the absorber. While being folded at the upper surface portion of 13, it is bonded by a hot melt adhesive or the like.

  Inside the gathered nonwoven fabric 15 formed of a double sheet nonwoven fabric, a plurality of thread-like elastic elastic members 16, 16... The thread-like elastic elastic members 16, 16... Are for forming a three-dimensional gather BS by raising the nonwoven fabric portion protruding from the absorber side edge by elastic elastic force as shown by a two-dot chain line in FIG. It is.

  The liquid-impervious sheet 12 enters the double sheet-like gathered nonwoven fabric 15 and constitutes a leak-proof wall on the lower end side of the three-dimensional gather BS as shown in FIG. As the liquid-impermeable sheet 12, it is desirable to use an opaque sheet so that brown color such as defecation and urine does not appear. As the opacification, a plastic film and a pigment and filler such as calcium carbonate, titanium oxide, zinc oxide, white carbon, clay, talc and barium sulfate are preferably used.

  As the thread-like elastic elastic member 16, materials such as styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester, and the like that are usually used can be used. In order to make it difficult to see from the outside, it is preferable that the thickness is 925 dtex or less, the tension is 150 to 350%, and the interval is 7.0 mm or less. Instead of the thread-like elastic elastic member, a tape-like elastic elastic member having a certain width may be used.

  In the same manner as the liquid-permeable surface sheet 11, the material fiber constituting the gathered nonwoven fabric 15 is made of synthetic fibers such as polyethylene or polypropylene, such as olefin, polyester, and amide, as well as recycled fibers such as rayon and cupra, and cotton. Non-woven fabric obtained by an appropriate processing method such as a spunbond method, a thermal bond method, a melt blown method, a needle punch method, etc. can be used. It is preferable to use a nonwoven fabric that suppresses the basis weight and has excellent air permeability. Furthermore, for the gathered nonwoven fabric 15, in order to prevent the transmission of urine and the like, to prevent fogging, and to enhance the touch to the skin (dry feeling), silicon-based, paraffin metal-based, alkylchromic croid-based water repellent, etc. It is desirable to use a water-repellent non-woven fabric coated with.

(Structure of exterior sheet)
As shown in FIGS. 2 and 3, the exterior sheet 20 is a two-layer nonwoven fabric sheet composed of an upper nonwoven fabric 20A and a lower nonwoven fabric 20B, and various elastic members are arranged between the upper nonwoven fabric 20A and the lower nonwoven fabric 20B. It is provided and has elasticity. The planar shape has a pseudo hourglass shape as a whole by the concave leg periphery cut lines 29 formed to form the leg openings on the both sides of the middle.

  In particular, in the exterior sheet 20 of the illustrated embodiment, as elastic members, in the developed shape shown in FIG. 3, waist elastic members 24, 24... The portion B has a plurality of waist elastic members 25, 25,... Arranged in the horizontal direction at intervals in the vertical direction, and the waist around the ventral portion F and the back portion B, respectively. Aside from the elastic member groups 25, 25..., The other side of the abdominal part and the dorsal part extends from the one side joining edge joining the ventral part F and the dorsal part B to the crotch side, bypassing the crotch side. A plurality of curved elastic member groups 26, 28,..., Which reach the side joining edge and are arranged at intervals without crossing each other. In addition, in this exterior sheet | seat 20, what is called a leg periphery elastic member substantially continuous along the leg periphery cut line 29 is not provided.

Hereinafter, each elastic member will be described in detail.
The waist elastic members 24, 24... Are disposed in the vicinity of the waist opening edge in the vicinity of the waist opening edge within the range of the side joint edges 21, 22 where the abdominal part F and the back part B are joined. These are a plurality of thread rubber-like elastic members that are used to attach the absorbent article to the body by applying a stretching force so as to tighten around the waist of the body. For the waist elastic member 24, rubber thread is used in the illustrated example. However, for example, a tape-like elastic member may be used.

  The waist elastic member groups 25, 25... Are elastic rubber members arranged in the horizontal direction at intervals in the vertical direction over the range from the upper part to the lower part of the side joint edges 21, 22. This is an elastic member for applying a horizontal expansion / contraction force to the waist part of the abdominal part F and the back part B, respectively, to bring the absorbent article into close contact with the body. Note that the boundary between the waist elastic members 24, 24... And the waist elastic members 25, 25. For example, even if the number of the elastic members arranged horizontally in the vertical direction on the ventral portion F and the dorsal portion B cannot be specified, some on the upper side are used as the waist elastic members. It suffices that the remaining elastic members function as waist elastic members.

  In the dorsal portion B, the dorsal curved elastic member groups 26, 26... Arranged separately from the waist elastic member groups 25, 25. A plurality of lines arranged to extend along the crotch portion so as to extend along the leg-cutting line 29 on the opposite side while bypassing the crotch portion, and to reach the side joint edge 22 on the other side, in the illustrated example, nine lines These dorsal curved elastic member groups 26, 26,... Are arranged at intervals without crossing each other. The dorsal curved elastic member groups 26, 26,... Are different in arrangement from the conventional leg-hole elastic members. That is, about two or three elastic elastic members are not arranged substantially as a bundle with a close interval, but with a predetermined interval so as to form a predetermined elastic zone, five or more, Preferably seven or more are arranged.

  The starting and terminating ends of the dorsal curved elastic member groups 26, 26... Are connected at a predetermined interval from the upper part to the lower part of the joint edge of the ventral part F and the dorsal part B, and are on the side of the absorbent main body 10. At the intersection with the edge, the acute-angle-side intersection angle α between the dorsal curved elastic member group 26, 26... And the absorbent main body 10 side edge is 35 ° or more, preferably 40 ° or more, more preferably 45 ° or more. Arranged in an arrangement pattern. Incidentally, in the example of illustration, it arrange | positions so that the crossing angle (alpha) may be around 47 degrees. The crossing angle α is preferably 60 ° or less at most from the balance between the horizontal component and the vertical component.

  In the side joint edges 21 and 22 between the ventral portion F and the dorsal portion B, the elastic member 26i located closest to the waist opening in the dorsal curved elastic member groups 26, 26. 24, 24... Are arranged such that the distance SB from the lowermost elastic member 24O is within 20 mm. When the wearer grasps the side of the waist part and pulls it upward when wearing it, the elastic force of the curved elastic members 26, 26. To come.

  Further, it is desirable that the dorsal curved elastic member groups 26, 26,... In the elastic member, when the elastic force acts in the tangential direction, the force acting in the width direction of the absorber 13 can be minimized by reversing the curved shape in the crotch part, and the shrinkage of the absorber 13 in the crotch part can be reduced. It becomes possible to prevent.

  In particular, in the absorbent article 1 of the illustrated form, in order to make the exterior sheet 20 fit in the back side portion B corresponding to the bulge shape of the buttock, a relative force is applied in a direction along the bulge of the buttock as much as possible. The elastic member groups 26, 26,... Are arranged at a relatively gentle inclination angle. For example, if the expansion members 26, 26,. 73% can be applied as a horizontal component force, and the exterior sheet 20 can be brought into close contact with the body so as to wrap the buttocks. As a result, the absorptive main body 10 is not contracted to the center side, and the leak prevention effect is enhanced by securely contacting the absorbent body 10 with the body.

  Furthermore, the arrangement | positioning space | interval of the back side curved elastic member groups 26, 26 ... in the side part joining edges 21 and 22 of the ventral part F and the back part B, that is, in the elastic member arrangement section BL of the side parts side edges 21 and 22 The arrangement interval is substantially the same as the arrangement interval of the dorsal curved elastic member groups 26, 26... In the elastic member arrangement section MB of the crotch part, and the furthest crotch side among the dorsal curved elastic member groups 26, 26. The positioned elastic member 26O is arranged so as to draw a curved shape in which the distance BH from the crotch fold line CL of the absorbent article is within ± 50 mm, preferably within 35 mm. The spacing between the dorsal curved elastic member groups 26, 26... Is evenly arranged between the side joint edges 21, 22 and the crotch part, so that the entire exterior sheet 20 can be applied to the body with equal balance without concentration of elastic force. The line drawn by the dorsal curved elastic member groups 26, 26,... Is arranged in a large wave curve shape that bypasses the region near the crotch part, so that the exterior sheet 20 is firmly attached to the body. You can get it.

  The dorsal curved elastic member groups 26, 26,... Arranged on the dorsal portion B side are preferably biased toward the ventral portion F with respect to the crotch folding line CL of the absorbent article at the crotch portion. . In the crotch part, the back-side curved elastic member groups 26, 26... Are biased toward the abdomen part F side with respect to the crotch part fold line CL of the absorbent article, thereby eliminating slipping of the absorbent article that occurs on the buttocks side. At the same time, the outer sheet 20 can be loosened to fit the body.

  On the other hand, in the ventral portion of the exterior sheet 20, the abdominal curved elastic member groups 28, 28... Disposed separately from the waist elastic member groups 25, 25. These are 9 thread-like elastic members in the illustrated example, which are arranged at intervals without crossing the crotch side and reach the other side joint edge 21 without crossing, The ventral curved elastic member groups 28, 28... Are arranged at intervals without crossing each other. The ventral curved elastic member groups 28, 28... Are also different in arrangement from the conventional leg-hole elastic members. That is, about two or three elastic expansion and contraction members are not arranged substantially as a bundle with a close interval, but at a predetermined interval so as to form a predetermined expansion and contraction zone, five or more, Preferably seven or more are arranged.

  The start and end of the ventral elastic member groups 28, 28... Are also connected at a predetermined interval over the range from the upper part to the lower part of the side joint edges 21 and 21 of the ventral part F and the back part B, In the intersection with the side edge of the absorbent main body 10, the acute angle side crossing angle θ between the ventral curved elastic member groups 28, 28... And the side edge of the absorbent main body 10 is 30 ° or less, preferably 28 ° or less. Arranged in a pattern. Incidentally, in the example of illustration, it arrange | positions so that crossing angle (theta) may be around 26 degrees. The crossing angle θ is preferably at least 20 ° or more from the balance between the horizontal component force and the vertical component force.

  In the ventral curved elastic member groups 28, 28..., In order to minimize the force acting in the width direction of the absorbent body 13 and prevent the absorbent body 13 from contracting at the crotch part, It is desirable that the direction is changed to a substantially arcuate curve.

  In the absorbent article 1 of the present embodiment, since the front part of the body does not have a bulge that becomes a hook like the back buttock of the body, the absorbent article slips mainly on the ventral part side F. In view of the knowledge that they tend to occur, the elastic member groups 28, 28,... Are arranged at a relatively tight inclination angle. If 28, 28... Are arranged, 90% of the applied stretching force can be applied as an upward component force, and the sliding of the absorbent article can be effectively prevented.

  In the side joint edges 21 and 22 between the ventral portion F and the dorsal portion B, the elastic member 28i located closest to the waist opening in the ventral curved elastic member groups 28, 28. It arrange | positions so that the distance SF from the lowermost elastic member 24O may be within 20 mm. When the wearer pulls up on the side of the waist part when wearing, the elastic force of the abdomen curved elastic members 28, 28... Makes it easier to pull up the abdomen portion F side of the absorbent article upward, improving ease of wearing. To come.

  Furthermore, the arrangement | positioning space | interval of the abdominal side curved elastic member group 28,28 ... in the side part joining edge 21,22 of the ventral part F and the back part B, ie, in the elastic member arrangement | positioning area FL of the side part side edge 21,22. The arrangement interval is substantially the same as the arrangement interval of the abdominal curved elastic member groups 28, 28... In the elastic member arrangement section MF at the crotch part, and is the furthest crotch side among the abdominal curved elastic member groups 28, 28. The positioned elastic member 28O is arranged so as to draw a curved shape in which the distance FH from the crotch fold line CL of the absorbent article is within ± 50 mm, preferably within 35 mm. By arranging the intervals between the ventral curved elastic member groups 28, 28... At the side joint edges 21 and 22 and the crotch part, the outer sheet 20 is closely attached to the body in an even balance without the elastic force being concentrated. The lines drawn by the ventral curved elastic member groups 28, 28... Are arranged in a large wave curve shape that bypasses the region near the crotch, thereby holding the exterior sheet 20 tightly against the body. To get.

  By the way, a part of the ventral curved elastic member groups 28, 28... And a part of the dorsal curved elastic member groups 26, 26. , 28... And the most crotch elastic member 26 O in the dorsal curved elastic member groups 26, 26. It is preferable to be close without doing. The proximity width (FH-BH) is desirably 10 to 20 mm. In the latter case, in the crotch part, the absorbent main body 10 is pressed and brought into close contact with the body side with equal pressure by the curved elastic member groups 28, 26, so that the gap between the body and the body is sealed, and a high leakage prevention effect is exhibited. Become so.

  Moreover, in the said form example, waist elastic member group 25,25 ... and curved elastic member 26 ..., 28 ... which are arrange | positioned at the abdominal part F and the back part B are made to continue on the absorptive main body 10. FIG. Although arrange | positioned, as FIG. 4 shows, you may cut | disconnect the elastic member which crosses the absorptive main body 10, and may make it discontinuous. By making the elastic member discontinuous on the absorbent main body, the absorber 13 can be further prevented from being contracted. It should be noted that the waistline elastic member groups 25, 25... And the curved elastic members 26, 28... Are arranged in the state before cutting regardless of whether or not the elastic members are cut on the absorbent main body 10. As long as it is present, the above-described effects can be achieved.

  On the other hand, the exterior sheet 20 mentioned above can be manufactured by the technique of Unexamined-Japanese-Patent No. 4-28363 or Unexamined-Japanese-Patent No. 11-332913, for example. Further, in order to cut the curved elastic members 26, 28,... On the absorbent main body 10 and make them discontinuous, JP-A-2002-35029, JP-A-2002-178428, and JP-A-2002-273808 are disclosed. The described cutting method is preferably employed.

(First form of moving section)
Next, various forms of the moving unit according to the present invention will be described. 6-8 has shown the 1st form of the moving part, Between the absorptive main body 10 and the exterior sheet | seat 20, the fixing | fixed part 31 fixed with the adhesive G2 with respect to the exterior sheet | seat 20, A moving sheet 30 having a non-fixed portion 32 that is movable with respect to the fixed portion 31 is provided. A portion of the non-fixed portion 32 that is separated from the fixed portion is defined as a moving portion 33, and The back surface of the absorbent main body 10 is attached with an adhesive G1.

  More specifically, the illustrated moving sheet 30 has a rectangular shape that is wider than the absorbent main body 10 and has substantially the same length. The movable sheet 30 is fixed to the inner surface of the exterior sheet 20 by the adhesive G2 so as to form a fixed portion 31. After the width-direction side portions 32 and 32 are folded back onto the fixed portion 31 with respect to the fixed portion 31, the front end side portion is folded back on the middle portion of the folded portion up to the vicinity of the center in the width direction. Side portions extend to both end portions of the absorbent main body 10. The both side portions 32, 32 are non-fixed portions 33 in the ventral portion F excluding the crotch portion, and move with respect to the fixed portion 31. From the crotch portion to the back portion B, As shown in FIGS. 6 and 8, it is fixed by an adhesive G <b> 3 or the like and does not move with respect to the fixing portion 31. Moreover, the both-sides edge part of the bottom face of the absorptive main body 10 is adhere | attached on the front-end | tip parts 34 and 34 of this both sides 32 and 32 with the adhesive agent G1.

  In the article 1 thus configured, of the moving sheet 30, the leading end 34 of the non-fixed portion 33 extends in parallel to the exterior sheet 20 and is movable in the width direction along the exterior sheet 20. The part connected to the moving part in the absorbent main body 10 can move along the exterior sheet 20 together with the moving part.

  In particular, since the movable sheet 30 is folded so as to expand and contract in the article width direction, the range of movement of the absorbent main body 10 becomes wide at each stage, for example, when the folded portion widens or the folded position changes. This moving range can be adjusted by appropriately increasing / decreasing the distance between the moving part 32M and the fixed part 31 and the number of turns. The number of turns can be determined as appropriate, but 1 to 3 is preferable.

  On the other hand, if the absorbent main body 10 is movable with respect to the exterior sheet 20 at the crotch part, as a result of the movement being restricted by both feet, the absorbent main body 10 is swung or tilted, As shown in the figure, both side portions 32, 32 of the movable sheet 30 are fixed at the crotch portion, and the absorbent main body 10 cannot move with respect to the exterior sheet 20, so that such a situation hardly occurs.

  In addition, as a raw material of the movement sheet | seat 30, if it is a flexible raw material, it can use without limitation, For example, the raw material similar to the liquid-permeable surface sheet 11 and the liquid-impermeable sheet 12 can be used. A hot melt adhesive can be used as the adhesive.

(Second form of moving unit)
FIGS. 9-11 has shown the 2nd form of the moving part, and the outer sheet | seat 20 is return | folded from the outer surface side to the inner surface side in the waist opening edge, and is pinched | interposed and fixed by the part 60 formed in double. It is a form provided with the attachment sheet | seat which has the fixed part 51 and the non-fixed part 52 extended to the position which covers the front-end part of the absorptive main body 10, and was made movable with respect to the fixed part 51. FIG. This mounting sheet is provided in the same part as the sheet for preventing so-called front-rear leakage (leakage from the ventral end or back end), and the configuration of the existing front-rear leakage prevention sheet is left as it is. It can also be used.

  That is, the absorbent main body 10 can be moved without being fixed to the exterior sheet 20 in the ventral portion F except the crotch portion, and the front end portion of the absorbent main body 10 is fixed to the fixing portion 51 in the non-fixed portion 52 of the mounting sheet 50. It is connected to a portion 53 that is separated from the center. In the crotch part and the back part B, substantially the entire absorbent body 10 is fixed to the inner surface of the exterior sheet 20. A hot melt adhesive or the like can be used for these fixations and connections.

  As the material of the attachment sheet 50, the same material as the gathered nonwoven fabric 15 can be suitably used. The width of the attachment sheet 50 may be at least enough to cover the entire front end portion of the absorbent main body 10, but it is preferable that the attachment sheet 50 is configured to cover the entire side between the side part joining edges 21 and 21 in the ventral portion F as illustrated. .

  In addition, since it is not preferable for preventing leakage when the tip of the mounting sheet 50 is fixed to the absorbent main body 10, it is preferable to connect a portion spaced apart from the tip to some extent with the absorbent main body 10.

  In the article thus configured, the front end side portion of the absorbent main body 10 can move along the exterior sheet 20 within the movement range of the non-fixed portion 52 of the attachment sheet 50.

(Third form of moving part)
In the third embodiment, instead of the mounting sheet 50 of the second embodiment, as shown in FIG. 12, the outer sheet 20 is folded back from the outer surface side to the inner surface side, and the portion 60 formed double is absorbed. The main body 10 is used by extending to the front end. That is, the folded portion 60 of the exterior sheet 20 has a fixed portion 61 fixed to the outer surface side portion as a base end portion and a non-fixed portion 62 that is movable with respect to the fixed portion 61 as a distal end portion. The front end portion of the absorbent main body 10 is connected to a portion of the non-fixed portion 62 that is separated from the fixed portion 61.

  Even in such a configuration, the front end side portion of the absorbent main body 10 can move along the exterior sheet 20 within the movement range of the non-fixed portion 62 of the exterior sheet folded-back portion 60 as in the second embodiment.

  In the illustrated embodiment, the lower surface of the absorbent main body 10 is connected to the upper surface of the outer sheet folded portion 60, but the upper surface of the absorbent main body 10 is connected to the lower surface of the folded portion 60 according to the second embodiment. May be.

(4th form of a moving part)
A 4th form implement | achieves the function similar to the movement sheet | seat 30 of a 1st form using the liquid-impermeable sheet 12 provided in the back surface side of the absorber 13, as shown in FIG. is there.

  Some of the materials used for the liquid-impermeable sheet 12 have poor resilience and the creases tend to be weak. In such cases, the sheets at the crease portions are bonded together with an adhesive G4 as necessary. You can also Others are basically the same as those of the first embodiment, and therefore, the same reference numerals are given in the drawing and the description thereof is omitted.

(5th form of a moving part)
As shown in FIG. 14 and FIG. 15, the fifth form is a fixed portion 41 fixed between the absorbent main body 10 and the exterior sheet 20 with an adhesive G5 or the like, and a fixed portion. An elastic stretchable sheet 40 having a non-fixed portion 42 that is movable with respect to 41 extends in parallel to the exterior sheet 20 and moves in a portion of the non-fixed portion 42 that is away from the fixed portion. The absorbent body 10 is attached to the moving part 43 with an adhesive G6 or the like.

  More specifically, the elastic elastic sheet 40 has a rectangular shape that is wider than the absorbent main body 10 and has substantially the same length, and is not folded unlike the first embodiment. And in the ventral side part F excluding the crotch part, both ends in the width direction of the elastic stretchable sheet 40 are fixed to the inner surface of the exterior sheet 20 by an adhesive G5 and the like, and the intermediate part is set as a non-fixed part 42. In the crotch part and the back part B, substantially the whole 44 is fixed to the inner surface of the exterior sheet 20. Moreover, the back surface of the absorbent main body 10 is fixed to the part (width direction center part) 43 spaced apart from the fixing | fixed part 41 in the inner surface of the elastic elastic sheet 40 with adhesive G6 etc.

  As the elastic stretch sheet 40, a rubber sheet, or an elastic stretch sheet in which an elastic member such as a rubber sheet or thread rubber is sandwiched and fixed between nonwoven fabric sheets can be used. However, the elastic elastic sheet does not need to be elastically stretched as a whole, and any part or all between the fixed part and the moving part may be elastically stretched.

  If comprised in this way, the moving part 43 can move by expansion-contraction of the part between the fixing | fixed part 41 and the moving part 43 in the elastic elastic sheet 40, and the absorptive main body 10 can also be moved in connection with this.

(Other forms)
In the form in which the movement range is expanded by folding the sheet as in the first form and the fourth form, the expansion of the movement range by elastic expansion and contraction as in the fifth form can be combined. For example, An elastic stretchable sheet can be used as the moving sheet in the form or the liquid-impermeable sheet 12 in the fourth form.

  Also in the second and third embodiments, as in the first and fourth embodiments, the range of movement can be expanded by folding the sheet, or moved by elastic expansion and contraction as in the fifth embodiment. The range can be expanded.

  In the above embodiment, only a part of the abdominal part (F) excluding the crotch part and the dorsal part is configured to move. However, the range can be determined as appropriate, for example, the entire absorbent body 13 can be moved. It can also be configured.

  For example, in the case of the first and fourth embodiments, the non-fixed portion 33 can be provided on the movable sheet 30 or the waterproof sheet 12 in the crotch part and the back part B as well as the abdomen part F. In the case of the second and third embodiments, the back portion B is also provided with the same attachment sheet 50 or exterior sheet folded portion 62 as the ventral portion F, and the front and rear ends of the absorbent main body 10 are connected to the front and rear attachment sheets. Or it can be set as the structure which each connects with an exterior sheet | seat folding | turning part, and does not fix an intermediate part.

  As mentioned above, although it explained in full detail based on the example of application in underpants type absorptive article, the present invention is also applied to other kinds of absorptive articles, such as a tape type thing fastened with a tape on both sides and various sanitary napkins. Needless to say, this is applicable.

It is a perspective view of a pants type absorbent article. It is an assembly drawing in the unfolded state. FIG. 3 is a plan view of a deployed state of the exterior sheet 20. FIG. 6 is a plan view of a developed state showing a modification of the exterior sheet 20. 2 is a plan view of the absorbent main body 10. FIG. It is a top view of the unfolding state which shows a 1st form. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a top view of the unfolding state which shows a 2nd form. It is AA sectional drawing of FIG. It is CC sectional drawing of FIG. It is sectional drawing of the 3rd form corresponded to CC cross section of FIG. It is sectional drawing of the 4th form equivalent to the AA cross section of FIG. It is a top view of the unfolded state of a 5th form. It is AA sectional drawing of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Absorbent article, 10 ... Absorbent main body, 11 ... Liquid-permeable surface sheet, 12 ... Liquid-impermeable sheet, 13 ... Absorber, 14 ... Crepe paper, 15 ... Gathered nonwoven fabric, 16 ... Thread-like elastic elastic member, DESCRIPTION OF SYMBOLS 20 ... Exterior sheet | seat, 21 * 22 ... Side part joining edge, 24 ... Waist part elastic member, 25 ... Waist circumference elastic member, 26 ... Back side curved elastic member, 28 ... Ventral side curved elastic member, 29 ... Leg circumference cut line , 30 ... moving sheet, 40 ... elastic stretchable sheet, 50 ... mounting sheet, 60 ... outer sheet folded portion, F ... ventral part, B ... dorsal part.

Claims (7)

In an absorbent article consisting of an absorbent main body including an absorbent body and an exterior sheet integrally provided on the outer surface side of the absorbent main body,
A sheet-like moving portion that extends parallel to the exterior sheet and is movable along the exterior sheet;
The absorber is attached to the moving part,
An absorbent article characterized by the above. Between the absorber and the exterior sheet, there is provided a movable sheet having a stationary part fixed to the exterior sheet and a non-fixed part movable relative to the stationary part,
The absorbent article according to claim 1, wherein the moving part is formed by a non-fixed part of the moving sheet. The exterior sheet has an extending portion that extends to at least one of the front side and the rear side of the absorber,
There is provided a mounting sheet having a fixed portion fixed to the extending portion, and a non-fixed portion that covers the end of the absorbent body on the extending portion side and is movable with respect to the fixed portion. And
The absorbent article according to claim 1, wherein the moving part is formed by a non-fixed part of the mounting sheet. The exterior sheet is folded from the outer surface side to the inner surface side at at least one end of the article,
The folded portion has a fixed portion fixed to the outer surface side portion at the base end portion and a non-fixed portion movable to the fixed portion at the distal end portion, respectively.
The absorbent article according to claim 1, wherein the moving part is formed by an unfixed part of the folded part. The absorbent main body is provided with a liquid-impermeable sheet on the outer surface side of the absorber,
The liquid-impervious sheet has a fixed portion fixed to the exterior sheet and a non-fixed portion that is movable with respect to the fixed portion.
The absorbent article according to claim 1, wherein the moving part is formed by a non-fixed part of the liquid-impermeable sheet.   The absorbent article according to any one of claims 2 to 5, wherein a folded portion is formed between the moving portion and the fixed portion in the sheet having the moving portion.   The absorbent article according to any one of claims 2 to 6, wherein the sheet having the moving part is one in which the moving part moves when part or the whole of the sheet elastically expands and contracts.

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