JP2019146916A - Pad type absorbent article - Google Patents

Abstract

To improve mounting easiness of a pad type disposable diaper fixed to an outer.SOLUTION: In a pad type absorbent article which comprises a front side region F1 doubly folded in the front and rear direction so as to make the surfaces face each other, and positioned in a crease 201 and a front side of the crease 201, and a rear side region B1 positioned behind the crease 201, and in which an absorber 23 is incorporated in the front side region F1 and the rear side region B1, and adhesive layers 30 are provided in rear faces of the front side region F1 and the rear side region B1, the absorber 23 has slits 23s along the width direction in intermediate parts in the front and rear direction in a part positioned in the front side region F1 and a part positioned in the rear side region B1.SELECTED DRAWING: Figure 8

Description

  The present invention particularly relates to a pad-type absorbent article that is used by being fixed to the inner surface of a disposable diaper such as a tape type or a pants type or an undergarment (hereinafter also collectively referred to as an outer).

  As one of such pad-type absorbent articles, there is a pad-type disposable diaper that is used by being attached to the inner surface of the outer for the purpose of reducing diaper replacement costs or toilet training (see, for example, Patent Document 1). Sanitary napkins are also included in the pad-type absorbent article fixed to the outer.

  Generally, an adhesive layer made of an adhesive layer is provided on the back of a pad-type disposable diaper that is fixed to the outer, and this adhesive layer adheres to the inner surface of the diaper or undergarment, thereby causing a displacement at the time of wearing. Is to be prevented.

  Moreover, a general pad type absorbent article is sold in a state of being folded in three or in two. For example, as shown in FIG. 9A, the tri-fold pad-type absorbent article 300 is placed on the intermediate region 302 positioned in the middle in the front-rear direction so as to be hidden behind the front side, as shown in FIG. The region 301 and the rear region 303 located behind the intermediate region 302 are folded. FIG. 9B shows a general method for mounting the tri-fold pad type absorbent article 300. That is, when the pad-type absorbent article 300 in a tri-fold state is mounted, the front region 301 and the rear region 303 are raised to form a U shape, and then introduced into the outer 100 from the intermediate region 302. Is pressed against the inner surface of the crotch portion of the outer 100 by hand to adhere the adhesive layer 30 on the back surface of the intermediate region 302 to the inner surface of the outer 100, and then the front region 301 and the rear region 303 are pressed against the inner surface of the outer 100. And the adhesive layer 30 on the back surface of the rear region 303 is adhered to the inner surface of the outer 100.

  However, in this case, the pad-type absorbent article 300 is difficult to introduce into the outer 100 because the pad-type absorbent article 300 has a U-shape that is long in the front-rear direction due to the folding folds in a tri-fold state. Therefore, before the adhesive layer 30 in the intermediate region 302 is adhered to an appropriate position on the outer 100, the front and rear ends of the adhesive layer 30 in the intermediate region 302, and the adhesive layer 30 in the front region 301 or the rear region 303 are used. However, it may stick to an inappropriate position of the outer 100, and there is room for improvement in terms of ease of mounting in this respect.

  On the other hand, the double-fold pad-type absorbent article 400 is folded in half so that the surfaces are aligned as shown in FIG. 10 (a). It has a front region F1 located in front of the eyes 401 and a rear region B1 located in the rear of the folds 401. FIG. 10B and FIG. 11 show a general method for mounting the folded pad type absorbent article 400. That is, when the pad-type absorbent article 400 in a folded state is mounted, a hand is inserted between the front region F1 and the rear region B1 from the side opposite to the fold line 401, and the folding is performed in a thin V-shaped state. After introducing the crease 401 and its vicinity into the inner surface of the crotch portion of the outer 100 to cause the adhesive layer 30 on the back surface to adhere to the inner surface of the outer 100, the pressing position is set in the front-rear direction. The adhesive area is expanded to the entire front area F1 and rear area B1 while shifting.

  However, after the crease 401 and the vicinity thereof are pressed against the inner surface of the crotch portion of the outer 100 to adhere the adhesive layer 30 on the back surface to the inner surface of the outer 100, the adhesive region is moved forward or backward while moving the pressing position in the front-rear direction. When spreading to the side, it is impossible to press both the front and back sides at once. In addition, although the folded pad type absorbent article 400 has a crease remaining in the middle in the front-rear direction, the other portions are difficult to bend due to the rigidity of the absorbent body 23, so that the force to maintain the V shape is obtained. Easy to work. For this reason, as shown in FIG. 11, when the crease 401 and the vicinity thereof are adhered to the inner surface of the crotch portion of the outer 100, when the adhesive area is expanded in the front-rear direction, the unpressed area F2, which is ahead of the pressing position, B2 may fall and stick to an inappropriate position on the outer 100, and there is room for improvement in terms of ease of mounting in this respect.

JP 2013-192849 A JP 2013-166029 A

  Then, the main subject of this invention is improving the mounting | wearing ease of the pad type disposable diaper fixed to outer.

The pad type absorbent article which solved the above-mentioned problems is as follows.
<First aspect>
Folded back and forth so that the skin-side surfaces fit together,
A fold, a front region located on the front side of the fold, and a rear region located on the rear side of the fold,
An absorber is built in from the front region to the rear region,
An adhesive layer is provided on the back surface of the front region and the rear region,
In pad type absorbent articles,
The absorber has a slit or groove along the width direction in the middle of the front-rear direction in at least one of the portion located in the front region and the portion located in the rear region,
A pad-type absorbent article.

(Function and effect)
This pad type absorbent article is folded in two in the front-rear direction so that the skin-side surfaces are brought together. Therefore, when the pad-type absorbent article is attached to the outer, put a hand between the front region and the rear region from the opposite side to the fold, and in a thin V-shaped state, Therefore, it does not become difficult to introduce like a tri-fold pad type absorbent article.
Further, since the absorber has a slit or groove along the width direction in the middle of the front-rear direction in at least one of the portion located in the front region and the portion located in the rear region, the slit or groove The pad-type absorbent article is easily bent in the front-rear direction at the position. As a result, after the pad type absorbent article was introduced into the outer, the crease and the vicinity thereof were pressed against the inner surface of the outer crotch portion, and the adhesive layer on the back surface was adhered to the outer inner surface, and then the pressing position was changed back and forth. When the adhesive region is expanded while shifting in the direction, even if the portion between the slit or groove along the width direction and the crease is pressed against the outer inner surface, the unpressed region ahead of the pressing position is not easily tilted. Therefore, it is difficult for the unpressed area to accidentally adhere to an inappropriate position on the outer. In summary, the pad-type absorbent article can be easily introduced into a narrow outer space, and an adhesive operation after the introduction can be easily performed.
The slit includes not only a slit having no gap but also a slit having a certain gap. Further, the groove includes a compacted portion locally compressed in the thickness direction by compression processing such as embossing, and a low-weighted portion having the same density as that of the surroundings but less weight of the absorbent material.

<Second aspect>
When the position of the front end of the pad-type absorbent article is 0% and the position of the rear end of the pad-type absorbent article is 100%, the slit or groove along the width direction has a position of 30-40% and 60- It is provided at a position of 70%,
The pad type absorbent article according to the first aspect.

(Function and effect)
The position of the slit or groove along the width direction may be determined as appropriate, but is preferably within the range described in this section.

<Third Aspect>
The pressure-sensitive adhesive layer is not provided in a portion overlapping the slit or groove along the width direction,
The pad type absorbent article of the 1st or 2nd aspect.

(Function and effect)
If the adhesive layer is provided on the back side of the pad type absorbent article that is easily bent, the adhesive layer on one side and the adhesive layer on the other side sandwich the easily bent part with a slight deformation during the mounting operation. May stick together, making it difficult to install. This type of pressure-sensitive adhesive layer can be easily peeled from the outer layer, but in the case of pressure-sensitive adhesive between the pressure-sensitive adhesive layers, it is usually difficult to peel off. Therefore, it is preferable that the adhesive layer has such an arrangement.

<Fourth aspect>
The absorber has a slit or groove along the width direction or a slit or groove extending in the front-rear direction from the vicinity in the middle of the width direction on at least one of the front and rear sides of the slit or groove along the width direction. doing,
The pad type absorbent article according to any one of the first to third aspects.

(Function and effect)
In the pad type absorbent article of this aspect, since it has a slit or groove along the width direction, or a slit or groove extending in the front-rear direction from the vicinity thereof, the front side and the rear side of the slit or groove along the width direction. At least one of the portions is easily bent in the width direction and is likely to have a shape along the inner surface of the outer.
Moreover, when the slit or groove | channel along a width direction is provided in an absorber, there exists a possibility that excrement will spread | diffuse in the width direction easily, and what is called a side leak may generate | occur | produce easily. However, if there is a slit or groove extending in the front-rear direction from the slit or groove along the width direction as in this embodiment, the excrement is a slit or groove along the width direction, or the front-rear direction from the vicinity. Can be easily diffused, and the risk of side leakage can be reduced.

  According to the present invention, there are advantages such as improved ease of mounting the pad type absorbent article fixed to the outer.

It is a top view which shows the front side of the pad type disposable diaper of the unfolding state. It is a top view which shows the back side of the pad type disposable diaper of the unfolding state. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a top view which shows the front side of the pad type disposable diaper of the unfolding state. It is sectional drawing of the pad type disposable diaper (a) Folded state, (b) Attachment process. It is sectional drawing of the pad type disposable diaper of (a) mounting process, (b) mounting process. It is sectional drawing of the pad type disposable diaper of (a) tri-folded state, (b) attachment process. It is sectional drawing of the pad type disposable diaper (a) Folded state, (b) Attachment process. It is sectional drawing of the mounting process of a pad type disposable diaper. It is sectional drawing which expands and shows the principal part of a pad type disposable diaper. It is a perspective view showing a pad type disposable diaper roughly.

  Hereinafter, an example of a pad-type disposable diaper, which is one of pad-type absorbent articles, will be described with reference to the accompanying drawings. 1 to 5 show a pad type disposable diaper 200. The pad-type disposable diaper 200 has a front region F1 that extends to the front side relative to the center in the front-rear direction and a rear region B1 that extends to the rear side relative to the center in the front-rear direction. The dimension of each part can be determined as appropriate. For example, the total length (length in the front-rear direction) L1 can be about 200 to 480 mm, and the total width W1 can be about 120 to 200 mm.

The pad-type disposable diaper 200 has a basic structure in which an absorber 23 is interposed between the inner surface of the liquid-impermeable sheet 21 and the liquid-permeable top sheet 22. As the absorbent body 23, it is possible to use a laminate of pulp fibers, an aggregate of filaments such as cellulose acetate, or a nonwoven fabric, and a mixture obtained by mixing and fixing a superabsorbent polymer as necessary. . If necessary, the absorber 23 can be wrapped with crepe paper or non-woven fabric (not shown). Moreover, the shape of the absorber 23 can be set to an appropriate shape such as a strip shape in which the front portion is relatively wider than the rear portion, a rectangular shape, or a trapezoidal shape. Although the fiber basis weight and the basis weight of the absorbent polymer in the absorbent body 23 can be determined as appropriate, the fiber basis weight is preferably about 100 to 600 g / m ^2, and the basis weight of the absorbent polymer is about 0 to 400 g / m ^2. It is preferable to do this.

  A liquid-impermeable sheet 21 is provided on the back side of the absorber 23. As the liquid-impermeable sheet 21, a sheet having moisture permeability can be used in addition to a polyethylene film or the like without impairing the water barrier from the viewpoint of preventing stuffiness. 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. Can be used. In the illustrated example, the liquid-impermeable sheet 21 protrudes around the absorber 23, but does not need to protrude around the absorber 23.

  The outer surface (back surface) of the liquid-impermeable sheet 21 is covered with an exterior sheet 25. Various nonwoven fabrics can be used as the exterior sheet 25. In addition, as a raw material fiber which comprises a nonwoven fabric, natural fibers, such as regenerated fibers, such as rayon and a cupra, and cotton, other than synthetic fibers, such as olefin type, polyester type, and polyamide type, such as polyethylene or a polypropylene, can be used.

  The front side of the absorber 23 is covered with a top sheet 22. In the illustrated example, the absorber 23 partially protrudes from the side edge of the top sheet 22, but the width of the top sheet 22 can be widened so that the side edge of the absorber 23 does not protrude. As the top sheet 22, a perforated or non-porous nonwoven fabric or a perforated plastic sheet is used. As a raw material fiber constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester or polyamide, recycled fibers such as rayon or cupra, and natural fibers such as cotton can be used.

  The front and rear end portions of the pad-type disposable diaper 200 are end flap portions EF that do not have the absorber 23 and extend to the front and rear sides of the front and rear ends of the absorber 23, respectively. Although the material which comprises the end flap part EF is not specifically limited, In the example of illustration, in the liquid-impermeable sheet 21, the exterior sheet 25, and the top sheet 22, the part extended on the front and back both sides of the absorber 23 and It has become.

  Further, both side portions of the pad type disposable diaper 200 are side flap portions SF extending to the side of the absorbent body. Although the material which comprises side flap part SF is not specifically limited, In the example of illustration, the width direction both sides of the absorber 23 in the liquid-impermeable sheet 21, the exterior sheet 25, the top sheet 22, and the gather sheet 62 It has become a part that extends. Including these, the bonding of the materials can be performed by material welding such as heat sealing and ultrasonic sealing in addition to the hot-melt adhesive shown by the dot pattern in the drawing.

(Get up gather)
In order to block urine and soft stool that move laterally on the top sheet 22 and prevent side leakage, the disposable diaper surface rises from the side of the top sheet 22 to the skin side on both sides in the width direction WD (protrusion) The rising gather 60 is provided over the entire front-rear direction.

  The rising gather 60 in the illustrated example has a root portion 65 fixed to a region including the side flap portion SF, a protruding portion 66 extending from the root portion 65, and both ends in the front-rear direction of the protruding portion are fixed in a lying state. Gathered portion 67, unfixed rising portion 68 located between the front and rear lodging portions of the projecting portion 66, and gather elasticity elastically fixed to at least the tip portion of the rising portion 68 in the front-rear direction. Member 63. The rising gather 60 is formed by a gather sheet 62 folded at the tip, and a plurality of gather elastic members 63 can be provided at intervals, as shown in the illustrated example. Although the elongation rate of the part which has the gather elastic member 63 is not specifically limited, 150-350% is preferable in normal cases, and 200-300% is more preferable.

  The root portion 65 of the rising gather 60 in the illustrated example is provided only in the side flap portion SF, and is joined to the side portion of the liquid-impermeable sheet 21 and the side portion of the exterior sheet 25, but the side flap portion SF. May extend to the side of the region overlapping the absorber 56.

  The projecting portion 66 of the rising gather 60 has a lying portion at both ends in the front-rear direction LD, but the portion between them is an unfixed rising portion 68, and this rising portion 68 contracts the gather elastic member 63. It comes to stand by force. When the diaper is mounted, the diaper is mounted on the body in the shape of a boat, and the contracting force of the gather elastic member 63 acts, so that the gather 60 rises up and contracts elastically around the leg. As a result, so-called side leakage from around the legs is prevented.

  As a material for the gather sheet 62, a plastic sheet or a melt-blown nonwoven fabric can be used, but from the viewpoint of touch to the skin, a nonwoven fabric that is water-repellent treated with silicone or the like is preferably used. As the gathered elastic member 63, styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicone, polyester, etc., usually formed in a thread shape, string shape, belt shape, etc. The material used can be used.

  As shown in FIGS. 2, 3, and 5, an adhesive layer 30 is provided on the back surfaces of the front region and the rear region. As shown in the illustrated example, the pressure-sensitive adhesive layer 30 is preferably covered with a release sheet 31 so as to be peelable, and the pressure-sensitive adhesive layer 30 is exposed by peeling the release sheet 31 during use.

  In the illustrated example, the pressure-sensitive adhesive layer 30 is continuously provided along the front-rear direction, but may be provided in each of the front region F1 and the rear region B1, or may be provided in only one of them. When providing the adhesive layer 30 with two or more, it is preferable to provide at least 1 each in front side area | region F1 and back side area | region B1.

  It is preferable that the pressure-sensitive adhesive layer 30 has a size and an arrangement so that the whole of the pressure-sensitive adhesive layer 30 falls within a region overlapping with the absorber 23. Specifically, the width W3 of the pressure-sensitive adhesive layer 30 is about 70 to 80% of the width W2 of the absorber 23, and the length L3 in the front-rear direction (the total length in the case of providing a plurality in the front-rear direction) is the total length L2 of the absorber 23. It is preferably about 60 to 95%, or about 50 to 95% of the total length L1 of the article. The pressure-sensitive adhesive layer 30 may extend from a region overlapping with the absorber 23 to the end flap portion EF.

  Characteristically, as shown in FIG. 7A, the pad-type disposable diaper 200 is folded in half in the front-rear direction so that the skin-side surfaces are aligned with each other. Slits 23s along the width direction are respectively provided in the middle in the front-rear direction of the portion located and in the middle in the front-rear direction of the portion located in the rear region. Therefore, as shown in FIG. 7B, when the pad-type disposable diaper 200 is attached to the outer 100, a hand is put between the front region F1 and the rear region B1 from the side opposite to the fold 201, Since it is introduced into the outer 100 from the fold 201 side in a thin V-shaped state, it does not become difficult to introduce like the tri-fold product shown in FIG. Further, the absorber 23 has slits 23s along the width direction in the middle in the front-rear direction of the portion located in the front region F1 and in the middle in the front-rear direction of the portion located in the rear region B1, respectively. The pad-type disposable diaper 200 is easily bent in the front-rear direction at the position of the slit 23s. As a result, as shown in FIG. 7A, after the pad-type disposable diaper 200 is introduced into the outer 100, the crease 201 and the vicinity thereof are pressed against the inner surface of the crotch portion of the outer 100, and the adhesive layer on the back surface. After adhering 30 to the inner surface of the outer 100, when expanding the adhesion region while shifting the pressing position in the front-rear direction, as shown in FIG. 8A, the portion between the slit 23s and the crease 201 along the width direction Is pressed against the inner surface of the outer 100, the unpressed areas F2 and B2 ahead of the pressed position are unlikely to fall down. Therefore, it is difficult for the non-pressed areas F2 and B2 to stick to an inappropriate position of the outer 100 by mistake. In summary, the pad-type disposable diaper 200 is easy to be introduced into the narrow inner space of the outer 100, and the adhesive work after the introduction is easy.

  In addition, as shown to Fig.5 (a), the slit 23s contains not only what does not have a clearance gap but what has a certain amount of clearance gap. Further, as shown in FIG. 5B, a groove 23d can be provided instead of the slit 23s. The groove 23d includes a compacted portion that is locally compressed in the thickness direction by compression processing such as embossing, and a low-weighted portion that has the same density as the surroundings but less weight of the absorber 23 material. The width s (the size of the gap) of the slit 23s or the groove 23d can be determined as appropriate, but in the normal case, it is preferably about 5 to 15 mm. Further, the slit 23s is particularly easily bent when it is continuous from one side edge of the absorber 23 to the other side edge as in the illustrated example. The slit 23s may be provided only in a part in the width direction, or may be provided in a dotted line shape (intermittently) from one side edge of the absorber 23 to the other side edge.

  The positions of the slits 23s along the width direction may be determined as appropriate. However, it is preferable that one or more positions are provided on both the front and rear sides of the fold line 201. It is preferable that one is provided. The position of the slit 23s in this case can be determined as appropriate, but in the normal case, when the position of the front end of the pad type disposable diaper 200 is 0% and the position of the rear end of the pad type disposable diaper 200 is 100%, The slits 23s along the width direction are preferably provided at 30 to 40% positions and 60 to 70% positions, respectively. Moreover, when the narrow part 23n along the leg periphery is provided in the absorber 23 like the example of illustration, since it will become easier to bend | fold if the slit 23s is located in the narrow part 23n, it is preferable. In particular, as in the illustrated example, when the region M having a constant width dimension is present in the middle in the front-rear direction of the constricted portion 23n, the slits 23s are preferably located at the front end portion and the rear end portion of the region. .

  As shown in FIG. 12 (a), when the adhesive layer 30 is provided on the back surface of the pad-type disposable diaper 200 that is easily bent, as shown in FIG. The adhesive layer 30 on one side and the adhesive layer 30 on the other side stick to each other with a portion that is easily bent, and the mounting operation may be difficult. This type of pressure-sensitive adhesive layer 30 can be easily peeled off from the outer 100, but in the case of pressure-sensitive adhesive between the pressure-sensitive adhesive layers 30, it is usually difficult to peel off. Therefore, as shown in FIG. 2 and the like, the pressure-sensitive adhesive layer 30 is desirably not provided in a portion overlapping the slit 23s along the width direction. Thereby, as shown in FIG.12 (c), it can prevent that the adhesive layer 30 of one side and the adhesive layer 30 of the other side stick together across the part which is easy to bend. Specifically, in the case of the illustrated example, the region F2 on the front side of the slit 23s along the width direction on the front side, the region B2 on the rear side of the slit 23s along the width direction on the rear side, and the slit 23s along the width direction thereof. It is preferable that the adhesive layer 30 is provided in each of the regions M slightly apart from the slit 23s along the width direction (for example, about 5 to 20 mm).

  On the other hand, as shown in FIG. 6, the absorber 23 has a slit 23s along the width direction in the middle (particularly in the center) in the width direction on at least one of the front side and the rear side of the slit 23s along the width direction, or the vicinity thereof. It is also preferable to have a slit 23c extending in the front-rear direction. In this case, since it has the slit 23s along the width direction or the slit 23c extending in the front-rear direction from the vicinity thereof, as shown in FIG. 13, at least one of the front side and the rear side of the slit 23s along the width direction. The position is easy to bend in the width direction and tends to have a shape along the inner surface of the outer 100. Moreover, when the slit 23s along the width direction is provided in the absorbent body 23, the excrement easily diffuses in the width direction, and so-called side leakage may easily occur. However, if there is a slit 23c extending in the front-rear direction from the slit 23s along the width direction or the vicinity thereof as in the present embodiment, excreta diffuses in the front-rear direction from the slit 23s along the width direction or the vicinity thereof. The risk of side leakage can be reduced.

<Explanation of terms in the specification>
The following terms in the specification have the following meanings unless otherwise specified in the specification.

  "The front-rear direction" means the direction (vertical direction) indicated by the symbol LD in the figure, and "width direction" means the direction indicated by WD (left-right direction) in the figure, Are orthogonal.

  ・ "Front side" means the person near the wearer's skin when wearing a pants-type disposable diaper, and "Back" means the person far from the wearer's skin when wearing a pants-type disposable diaper .

  ・ "Surface" means the surface closer to the wearer's skin when wearing a pants-type disposable diaper, and "Back" refers to the skin of the wearer when wearing a pants-type disposable diaper. It means the far side.

  “Elongation rate” means a value when the natural length is 100%. For example, an expansion rate of 200% is synonymous with an expansion ratio of 2 times.

  -"Gel strength" is measured as follows. Artificial urine (urea: 2 wt%, sodium chloride: 0.8 wt%, calcium chloride dihydrate: 0.03 wt%, magnesium sulfate heptahydrate: 0.08 wt%, and ion-exchanged water: 97.09 wt% 1.0 g of a superabsorbent polymer is added to 49.0 g of the mixture) and stirred with a stirrer. The produced gel is left in a constant temperature and humidity chamber of 40 ° C. × 60% RH for 3 hours and then returned to room temperature, and the gel strength is measured with a card meter (Curdmeter-MAX ME-500, manufactured by I.techno Engineering).

  ・ "Weight" is measured as follows. After the sample or test piece has been pre-dried, it is left in a test room or apparatus in a standard state (test location is temperature 23 ± 1 ° C., relative humidity 50 ± 2%) to a constant weight. Pre-drying refers to making a sample or test piece constant in an environment at a temperature of 100 ° C. In addition, it is not necessary to perform preliminary drying about the fiber whose official moisture content is 0.0%. From the test piece in a constant weight state, a sample plate (100 mm × 100 mm) is used to cut a sample having a size of 100 mm × 100 mm. The weight of the sample is measured, multiplied by 100, and the weight per square meter is calculated and used as the basis weight.

-"Thickness" is automatically measured using an automatic thickness measuring instrument (KES-G5 handy compression measurement program) under the conditions of load: 0.098 N / cm ² and pressure area: 2 cm ² .

  -"Developed state" means a state where the plate is flattened without contraction or slack.

  -Unless otherwise specified, the dimensions of each part mean dimensions in a deployed state, not a natural length state.

  ・ If there is no description about the environmental conditions in the test and measurement, the test and measurement shall be performed in a test room or equipment in the standard state (test location: temperature 23 ± 1 ° C, relative humidity 50 ± 2%). To do.

  INDUSTRIAL APPLICATION This invention can be utilized for the pad type absorbent article fixed to the inner surface of outer, such as a pad type disposable diaper which has an adhesive layer on the back surface, and a sanitary napkin.

  DESCRIPTION OF SYMBOLS 21 ... Liquid impervious sheet, 22 ... Top sheet, 23 ... Absorber, 60 ... Gathering, 25 ... Exterior sheet, 30 ... Adhesive layer, 31 ... Release sheet, 100 ... Outer, 200 ... Pad type disposable diaper, F1 ... front side region, B1 ... rear side region, 23c ... slit extending in the front-rear direction, 23s ... slit along the width direction, 23d ... groove, 201 ... fold, F2, B2 ... unpressed region, 23n ... constricted part.

Claims (4)

Folded back and forth so that the skin-side surfaces fit together,
A fold, a front region located on the front side of the fold, and a rear region located on the rear side of the fold,
Absorbers are incorporated in the front region and the rear region,
An adhesive layer is provided on the back surface of the front region and the rear region,
In pad type absorbent articles,
The absorber has a slit or groove along the width direction in the middle of the front-rear direction in at least one of the portion located in the front region and the portion located in the rear region,
A pad-type absorbent article. When the position of the front end of the pad-type absorbent article is 0% and the position of the rear end of the pad-type absorbent article is 100%, the slit or groove along the width direction has a position of 30-40% and 60- It is provided at a position of 70%,
The pad type absorbent article according to claim 1. The pressure-sensitive adhesive layer is not provided in a portion overlapping the slit or groove along the width direction,
The pad-type absorbent article according to claim 1 or 2. The absorber has a slit or groove along the width direction or a slit or groove extending in the front-rear direction from the vicinity in the middle of the width direction on at least one of the front and rear sides of the slit or groove along the width direction. doing,
The pad type absorbent article according to any one of claims 1 to 3.

Images