JP5735869B2 - Absorbent articles - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an absorbent article such as a sanitary napkin, and more particularly to an absorbent article that can improve fit and prevent body fluid from leaking backward.

  Patent Document 1 discloses a sanitary napkin as an absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet. A sanitary napkin is described in which the thickness of the absorbent body in the rear part that abuts the wearer's buttocks is increased. Since the sanitary napkin of Patent Document 1 is configured such that the thickness of the absorber that contacts the buttocks is thick, the absorber is disposed along the buttocks and can prevent body fluid from leaking backward.

JP 2009-112864 A (FIG. 1 etc.)

  By the way, in recent years, since a feeling of use can be reduced and a wearing feeling can be improved, there exists a tendency for the thin sanitary napkin which made the thickness of the absorber thin. However, in such a thin sanitary napkin, since the thickness of the absorber is thin, it is difficult to arrange the absorber along the buttocks. Therefore, the fitting property of the sanitary napkin is lowered, and there is a possibility that leakage of body fluid to the rear cannot be prevented.

  This invention is made | formed in view of the above-mentioned subject, and it aims at providing the absorbent article which can prevent the leakage of the bodily fluid to back, improving a feeling of mounting | wearing.

  In order to solve the above-described problems, an absorbent article according to the present invention includes a liquid-permeable top sheet (top sheet 10), a liquid-impermeable back sheet (back sheet 20), and the top sheet and the back sheet. The absorbent body (absorbent body 30) is disposed between and a plurality of compressed parts (compressed parts 80) obtained by compressing the topsheet and the absorbent body in the thickness direction of the absorbent article. It is the formed absorbent article (absorbent article 1), and the absorbent body has a center (center area longitudinal center CACL) of the excretory opening contact area disposed to face the excretion opening of the wearer. And a first region (first region PA) in which the compressed portion is formed, and a second region (first region) that is disposed behind the absorbent article rather than the first region and in which the compressed portion is not formed. 2 area NA), and the pressing part is the first A pair of surrounding compressed parts (enclosed compressed parts 84) disposed along the outer periphery of the region, and a pair disposed on both sides in the width direction of the second region and extending from the width direction outer side of the second region to the first region. When the force which goes to the said width direction inner side from the said width direction outer side is applied with respect to the said 1st area | region. The gist of the invention is that it is pressed inward in the width direction via the longitudinal direction compressed portion and the surrounding compressed portion, and can be raised on the skin contact surface side of the wearer.

  The first region of the absorbent article is a region including the center of the excretory opening contact region, and is a portion where force is applied from the outside in the width direction to the inside when the wearer closes the leg. Since the longitudinal direction pressing part is arrange | positioned in this 1st area | region, when a force is applied toward the inner side from the width direction outer side, an absorbent article deform | transforms inside on the basis of a longitudinal direction pressing part.

  A second region in which the surrounding compressed portion is disposed around is disposed on the inner side in the width direction than the longitudinal compressed portion. A 2nd area | region deform | transforms into the width direction inner side on the basis of a longitudinal direction pressing part and an enclosure pressing part. A 2nd area | region is an area | region in which the pressing part is not formed, and it is comprised so that it can protrude to a wearer's skin contact surface side with the stress which arises by the external force from the width direction outer side. Therefore, the 2nd field located behind the 1st field including the center of the excretion mouth contact field bulges to the wearer's body side, and the absorber is arranged along the curve of the body, preventing back leakage. Can do.

  On the other hand, in the first region including the excretory opening contact region, a pressing portion is formed, and is less likely to be deformed than the second region. Therefore, the first region is difficult to be deformed when a force is applied from the outer side in the width direction toward the inner side, and it is easy to maintain the state where the first region faces the excretion opening.

It is the top view seen from the skin contact surface side of the absorptive article concerning a 1st embodiment. It is a rear view of the absorbent article shown in FIG. It is a schematic cross section of the AA cross section shown in FIG. It is a schematic cross section of the BB cross section shown in FIG. It is the top view seen from the skin contact surface side of the absorptive article concerning a 1st embodiment. It is sectional drawing which shows typically the state with which the absorbent article shown in FIG. 1 was worn. (A) is a state before a deformation | transformation, (b) is a state after a deformation | transformation. It is the top view seen from the skin contact surface side of the absorptive article concerning a 2nd embodiment. It is the top view seen from the skin contact surface side of the absorbent article which concerns on 3rd Embodiment. It is the top view seen from the skin contact surface side of the absorbent article which concerns on 4th Embodiment. It is the top view seen from the skin contact surface side of the absorbent article which concerns on 5th Embodiment.

(First embodiment)
With reference to FIG.1 and FIG.2, the absorbent article 1 which concerns on the 1st Embodiment of this invention is demonstrated. FIG. 1 is a plan view of the absorbent article, and FIG. 2 is a rear view of the absorbent article. 3 is a cross-sectional view taken along the line AA shown in FIG. 1, and FIG. 4 is a cross-sectional view taken along the line BB shown in FIG. The absorbent article 1 according to the present embodiment is, for example, a sanitary napkin.

  The absorbent article according to the embodiment is a sanitary napkin for night use. Therefore, the absorbent article according to the present embodiment is configured such that the rear area BA located on the rear side of the wearer is longer than the front area FA located on the front side of the wearer in the longitudinal direction. In addition, the area | region between a pair of wing parts mentioned later is center area | region CA containing the excretion opening | mouth contact | abutting area | region where a wearer's excretion opening contacts. A front side of the central area CA is a front side area FA, and a rear side of the central area CA is a rear side area BA.

  In the present embodiment, a night sanitary napkin is described as an example, but the absorbent article according to the present invention can also be applied to a day sanitary napkin. The sanitary napkin for daytime has a shorter length in the longitudinal direction of the rear region as compared with the sanitary napkin according to the present embodiment. For example, the length of the rear region of the daytime sanitary napkin is substantially the same as the length of the front region.

  The absorbent article 1 includes a top sheet 10 that comes into contact with the wearer's skin, a liquid-impermeable back sheet 20 that does not transmit liquid, and an absorber 30. The absorber 30 is disposed between the top sheet 10 and the back sheet 20. Therefore, the absorber 30 is shown with a broken line in FIG.1 and FIG.2. The absorbent body 30 is disposed at the central portion in the longitudinal direction L and the width direction W of the absorbent article 1.

  The absorbent article 1 includes wing portions 43 and 44 provided outside the absorbent body 30 in the width direction W orthogonal to the longitudinal direction L in the plan view shown in FIG. Furthermore, the absorbent article 1 includes side sheets 41 and 42 provided outside the absorber 30 in the width direction W.

  The top sheet 10 is a liquid-permeable sheet that transmits liquid such as body fluid. The top sheet 10 covers at least the surface of the absorber 30. The top sheet 10 is not particularly limited as long as it is a sheet-like material having a structure that allows liquid to permeate, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, and a mesh sheet. Either natural fibers or chemical fibers can be used as the woven or non-woven material.

  The back sheet 20 has substantially the same length as that of the top sheet 10. As the back sheet 20, a polyethylene sheet, a laminated nonwoven fabric mainly composed of polypropylene, a breathable resin film, a spunbond, a sheet obtained by bonding a breathable resin film to a nonwoven fabric such as spunlace, or the like can be used. The back sheet 20 is preferably made of a material having flexibility that does not cause a sense of incongruity when worn. The back sheet 20 is desirably liquid-impervious and moisture-permeable, and can be constituted by a microporous sheet obtained by stretching a melt-kneaded inorganic filler such as polyethylene or polypropylene. .

The absorber 30 includes hydrophilic fibers and pulp. The absorber 30 is formed of a material that can absorb body fluid such as menstrual blood. The absorbent body 30 may be formed by laminating hydrophilic fibers or powder by the airlaid method, an airlaid sheet obtained by forming hydrophilic fibers or powder into a sheet shape by the airlaid method, or a tissue (for example, It may be formed by placing pulverized pulp mixed with a superabsorbent polymer on a basis weight of 15 g / m ² ) and wrapping it with a tissue.

The absorbent body 30 according to the present embodiment is configured by wrapping a pulp obtained by laminating cotton-like pulp, synthetic pulp, or the like at a basis weight of about 100 to 300 g / m ² with protective paper (not shown). The thickness of the core part 31 (for example, refer FIG. 3) located in the center in the width direction of the absorber 30 is thicker than the thickness of the both sides in the width direction. The absorber 30 may have a substantially uniform thickness on the entire surface or a non-uniform thickness. The protective paper is for maintaining the shape of the pulp, and for example, crepe paper or tissue paper can be used.

  The absorber 30 has a shape extending in the front-rear direction, and is approximately one size smaller than the back sheet 20. The length of the absorbent body 30 in the width direction W corresponds to the crotch interval of an adult female and is approximately 50 to 80 mm. The absorber 30 is bonded to the back sheet 20 with an adhesive such as hot melt. Moreover, in this Embodiment, the absorber 30 and the surface sheet 10 are adhere | attached with the hot-melt-adhesive 60 (refer FIG. 3).

  The core part 31 is provided so that the center of the excretion opening | mouth contact | abutting area | region where a wearer's excretion opening will contact | abut at least. The center of the excretory opening contact area coincides with the center in the longitudinal direction and the width direction of the central area where the wearer's excretion opening contacts. For example, in an absorbent article having a wing portion, the center in the longitudinal direction of the wing portion is the center in the longitudinal direction of the central region. Moreover, in the absorbent article which does not have a wing part, the position where the length dimension of the width direction of an absorber is the shortest becomes the center of the longitudinal direction of a center area | region. The excretory opening contact region is included in a region that contacts the wearer's crotch, and is located between the wearer's legs.

  The side sheets 41 and 42 are disposed on both sides of the top sheet 10. The side sheets 41 and 42 can be selected from the same material as the top sheet 10. However, in order to prevent menstrual blood from flowing over the side sheets 41 and 42 to the outside of the absorbent article 1, it is preferable to have hydrophobicity or water repellency. The side sheets 41 and 42 cover a part of the side edge of the absorber 30 and the wing parts 43 and 44.

  In the absorbent article 1, the periphery of the surface sheet 10, the side sheets 41 and 42, and the back sheet 20 is joined, and the absorber 30 is enclosed. As a method for joining the top sheet 10 and the back sheet 20, any one or a combination of heat embossing, ultrasonic waves, or hot melt adhesive can be used.

  In the back sheet 20, the adhesive 50 is applied to the surface in contact with the undergarment in a plurality of regions (see FIG. 2). The adhesive 50 is intermittently disposed along the longitudinal direction L on the back side of the absorber. The adhesive 50 is also provided on the surface in contact with the undergarment in the wing part 43 and the wing part 44. In the state before use, the adhesive 50 is in contact with the release sheet 90. The release sheet 90 prevents the adhesive 50 from deteriorating before use. And the peeling sheet 90 is peeled by the wearer at the time of use.

  In addition, in the absorbent article which does not have the peeling sheet 90, you may be comprised so that it may prevent that an adhesive deteriorates before use with the packaging sheet which wraps an absorbent article separately. When the adhesive and the packaging sheet are in contact with each other, it is desirable that the surface of the packaging sheet be treated so that the adhesive can be peeled without reducing the adhesive strength of the adhesive.

  In the top sheet 10, a top sheet pressing portion 11 is formed by compressing the top sheet in the thickness direction. The surface sheet pressing part 11 is arrange | positioned at the grid | lattice form.

  In the absorbent article 1, a pressing portion 80 is formed by compressing the topsheet 10 and the absorbent body 30 in the thickness direction. The pressing part 80 includes a longitudinal pressing part 81 extending along the longitudinal direction L, a width pressing part 82 extending along the width direction, and a plurality of intermittent point pressing parts 83 formed intermittently. A part of the point-like compressed part 83 constitutes an enclosed compressed part 84 arranged along the outer periphery of the second area NA described later.

  In addition, the pressing part should just be formed by pressing at least the surface sheet 10 and the absorber 30 in the thickness direction T, and can adopt various configurations. For example, it can be formed by pressing or embossing, and the shape thereof may be a lattice network or a honeycomb shape.

  The longitudinal direction compressed portion 81 is disposed adjacent to the enclosed compressed portion 84 on both outer sides in the width direction than the enclosed compressed portion 84. The longitudinal direction compressed parts 81 are arranged on both sides in the width direction of the second area NA, and extend from the outside in the width direction of the second area NA to a first area PA described later.

  As for the longitudinal direction pressing part 81, the surface sheet 10 and the absorber 30 are compressed in the thickness direction. The longitudinal direction compression parts 81 are formed in two rows along the longitudinal direction L, and are arranged on the outer side in the width direction than the first longitudinal direction compression part 81A located on the inner side in the width direction and the first longitudinal direction compression part 81A. And the second longitudinal direction compressed portion 81B. The first longitudinal pressing portion 81 </ b> A is disposed adjacent to the surrounding pressing portion 84.

  In the longitudinal direction compressed portion 81, the absorbent body 30 is compressed in the thickness direction, and it is easy to draw body fluid and the like. The longitudinal direction pressing part 81 is arrange | positioned in the width direction outer side rather than the excretion opening | mouth contact | abutting area | region where a wearer's excretion opening contacts. Therefore, the diffusion of the body fluid to the outside in the width direction than the longitudinal direction compressed portion 81 can be suppressed, and side leakage can be prevented.

  The width direction compressed portion 82 is formed along the width direction W. The width direction pressing part 82 is formed by compressing the topsheet 10 and the absorbent body 30 in the thickness direction. The width direction pressing parts 82 are formed in two rows along the width direction W, and are arranged on the outer side in the longitudinal direction than the first width direction pressing part 82A located on the inner side in the longitudinal direction and the first width direction pressing part. And a second width direction compressed portion 82B.

  The longitudinal direction compression part 81 may be formed so as to be inclined with respect to a straight line along the longitudinal direction L, and an angle (acute angle) formed by the straight line along the longitudinal direction L and the longitudinal direction compression part 81. Side) is 45 degrees or less. On the other hand, the width direction pressing part 82 may be formed so as to be inclined with respect to a straight line along the width direction W, and an angle formed by the straight line along the width direction W and the width direction pressing part 82. (Acute angle side) shall be less than 45 degrees.

  Here, as shown in FIG. 1, the longitudinal direction compressed portion 81 and the width direction compressed portion 82 may be connected to form a circular compressed portion, or may not be connected. In the present embodiment, the first longitudinal direction pressing portion 81A and the first width direction pressing portion 82A are continuously formed, and the second longitudinal direction pressing portion 81B and the second width direction pressing portion 82B are continuous. Is formed. Moreover, the longitudinal direction pressing part and the width direction pressing part may be connected to form a substantially U-shaped pressing part, or may not be connected. In FIG. 5, the boundary X of a longitudinal direction pressing part and the width direction pressing part is illustrated.

  The dotted | punctate pressing part 83 is circular shape, Comprising: A plurality is intermittently formed. The point-like squeezing portion 83 includes an inner peripheral side of a circular squeezing portion formed by the first longitudinal squeezing portion 81A and the first width squeezing portion 82A, and the first longitudinal squeezing portion 81A and the first width squeezing portion. The outer peripheral side of the circular compression unit formed by the part 82A (the inner peripheral side of the circular compression unit formed by the second longitudinal compression unit 81B and the second width compression unit 82B) and the second longitudinal direction It is provided in the outer peripheral side of the circular pressing part formed by the pressing part 81B and the 2nd width direction pressing part 82B.

  On the inner periphery of the circular compressed portion formed by the first longitudinal direction compressed portion 81A and the first width direction compressed portion 82A, the compressed portion 80 is arranged along the outer periphery of the second region NA. An enclosure pressing part 84 is formed. In front of the second area NA surrounded by the surrounding pressing part 84, a first area PA in which a plurality of point-like pressing parts 83 are formed is arranged (see FIG. 5). 1st area | region is arrange | positioned so that the center of the excretion opening | mouth contact | abutting area | region where a wearer's excretion opening may contact | abut is included. A second region is disposed behind the first region.

  In addition, although the 2nd area | region in this Embodiment is an area | region where the pressing part is not formed, the concept also including the area | region where the pressing part is formed in a part (for example, 5% or less of the whole), for example. It is. In FIG. 5, the first area PA and the second area NA are indicated by hatching.

  It should be noted that a plurality of the point-like compressed parts 83 may be provided intermittently, and the shape thereof is not limited to a circle, and may be an ellipse, a star, a hardware, a diamond, or the like, and is not limited.

  Since the point-like pressing part 83 is intermittently arranged, it is harder to be harder than the width-direction pressing part extending in the width direction and the longitudinal pressing part extending in the longitudinal direction. However, the point-like squeezed part can prevent the rigidity of a part of the region from being biased and become hard, and can suppress the deterioration of the wearing feeling.

  For example, when the pressing part extends in the width direction or extends in the longitudinal direction, the body fluid held by the pressing part may be diffused in the front-rear direction or the width direction. In particular, at the front end of the absorber 30 and the rear end of the absorber 30, there is a risk that front leakage or the like may occur if body fluid diffuses too much. However, since the point-like compressed part is circular, it can suppress diffusion of the retained body fluid and prevent leakage.

  The pressing part 80 is formed by compressing the topsheet 10 and the absorbent body 30 in the thickness direction, and is a part having a relatively high density. Longitudinal squeezed portions 81A and 81B are formed outside the center in the width direction of the central area CA where the excretory opening contact area is formed, and the longitudinal center of the central area CA where the excretion opening contact area is formed Since the width direction pressing part is formed outside, the body fluid discharged from the wearer can be drawn by the pressing part 80 having a relatively high density.

  For example, since the longitudinal direction compression part 81 is formed in the width direction outer side rather than the center of the width direction of center area | region CA, a side leak can be prevented and it is width direction outside a longitudinal direction rather than the center of the length direction of center area CA. Since the pressing part 82 is formed, the front leak and the leak in a collar part can be prevented.

  The pressing part 80 is formed by compressing at least the top sheet 10 and the absorber 30 in the thickness direction, and is a relatively hard part. Since the longitudinal direction compression part 81 is formed in the width direction outer side of the surrounding compression part 84, when it presses toward the inner side from the width direction outer side, it deform | transforms toward the inner side from the longitudinal direction compression part 81, and external force Can be absorbed.

  Further, the second area NA surrounded by the surrounding pressing part 84 is arranged on the inner side in the width direction than the longitudinal pressing part 81. Since the pressing part 80 is not formed and the second area NA is relatively low in rigidity, the second area NA is easily deformed by an external force. Therefore, the second area NA is pressed inward in the width direction via the longitudinal squeezing portion 81 and the surrounding squeezing portion 84 when a force from the outer side in the width direction toward the inner side in the width direction is applied to the first area PA. It is configured so that it can be raised on the skin contact surface side of the wearer.

  Thus, the fit of the absorbent article 1 is improved by deforming the second region NA so as to fill the dent (the center in the width direction of the buttocks) of the wearer's body. Moreover, since 2nd area | region NA which bulges to the surface sheet side is surrounded by the surrounding pressing part 84, and deformation | transformation is interrupted | blocked by the surrounding pressing part, it becomes possible to partially deform the 2nd area | region. .

  Moreover, since the pressing part is formed, 1st area | region PA is hard to deform | transform than 2nd area | region. When a force directed from the outer side in the width direction to the inner side in the width direction is applied to the first area PA, the first area hardly absorbs deformation, so that the first area PA is inward in the width direction via the longitudinal direction pressing part and the surrounding pressing part. The heading force is easily applied to the second region.

  Furthermore, since the first region is not easily deformed, the first region is maintained in a state facing the excretion opening even when a force is applied to the first region PA from the outer side in the width direction to the inner side in the width direction. It becomes easy to do. Therefore, the absorption performance in the vicinity of the excretory opening contact region can be ensured.

  A point-like compressed portion 83 is formed on the outer side in the longitudinal direction from the surrounding compressed portion 84. Therefore, the rigidity of the area outside in the longitudinal direction from the surrounding pressing part 84 can be increased, and the deformation of the second area surrounded by the surrounding pressing part 84 can be hardly transmitted to the outside in the longitudinal direction. For example, it is possible to suppress the deformation of the central area CA including the excretion opening contact area by disposing the absorbent body 30 so as to face the excretion opening by providing the point-like pressing part 83 in front of the surrounding pressing part 84. it can.

  Further, a first width direction compressed portion 82 </ b> A is formed between the point-shaped compressed portion 83 on the rear side in the longitudinal direction from the surrounding compressed portion 84 and the enclosed compressed portion 84. Since the first width direction compressed portion 82A is formed, the deformation of the second region NA surrounded by the surrounding compressed portion 84 can be hardly transmitted to the rear. Further, even when the region behind the surrounding compressed portion 84 is deformed, the deformation can be hardly transmitted to the second region NA inside the enclosed compressed portion 84. Therefore, it becomes easy to maintain the state which the 2nd field changed.

  Furthermore, by providing the point-like compressed part 83 around the surrounding compressed part 84, the rigidity around the second area NA can be made higher than the rigidity of the second area NA, and from the outside of the absorbent article 1 When a force is applied inward, the second area NA can be relatively easily deformed.

  Moreover, the length of the width direction of 2nd area | region NA is gradually shortened toward the back of an absorbent article. The heel portion has a flat shape with a dent decreasing from the front to the rear and finally leading to the back. Therefore, by gradually shortening the length in the width direction of the second area NA toward the rear, the amount of swelling of the second area from the front toward the front sheet side is reduced, and the absorbent article is made more physically. Can be fitted. From such a viewpoint, the width direction length of the maximum width position of the second region is 15 mm to 40 mm, and more preferably 20 to 35 mm. The width direction length of the second region is configured to gradually shorten from the maximum width position toward the rear in the longitudinal direction. The length of the second region in the longitudinal direction is preferably about 60 to 120 mm.

  FIG. 6 is a diagram schematically showing a state in which the absorbent article is worn in the BB cross section of FIG. 1. (A) has shown the state which mounted | wore the underwear S with the absorbent article 1. FIG. (B) has shown the state from which the absorbent article 1 was pressed toward the inner side from the width direction outer side.

  An external force from the outside in the width direction to the inside due to the wearer's movement or the like acts on the central region arranged in the vicinity of the crotch portion. When the absorbent article 1 is pressed inward from the outer side in the width direction, the first longitudinal pressing part 81A and the second longitudinal pressing part 81B arranged across the central region are deformed inward from the base point. . With the deformation of the first longitudinal direction compressed portion 81 </ b> A inward in the width direction, the surrounding compressed portion 84 is deformed inward in the width direction, and the second region NA disposed in the width direction inner side than the enclosed compressed portion 84 is the surface sheet. Bulge to the side. That is, the second area NA is configured to bulge toward the topsheet due to the stress generated by the external force from the outside in the width direction.

  In addition, the hardness of an absorbent article etc. can be measured using the Gurley method prescribed | regulated to JIS-1096, for example. Moreover, the fabric weight and density of an absorber can be measured with the following measuring methods, for example. In the absorbent article packaged by the packaging body, the packaging body is opened, the folded absorbent article is developed, and the thickness and area of the portion where the basis weight and density are measured are measured. Subsequently, the part which measures a fabric weight and a density is cut out from an absorbent article, and the weight of the cut-out part is measured. Next, parts other than the absorber, such as the top sheet and the back sheet, are removed from the cut out part, and the weight of the absorber is measured. The basis weight is calculated based on the weight of the absorbent body and the area of the portion where the basis weight and density are measured. The density is calculated based on the basis weight and thickness.

  The thickness can be measured by the following measurement method. Specifically, after the sample absorbent article was impregnated with liquid nitrogen and frozen, it was cut with a razor and returned to room temperature, and then it was magnified 50 times using an electron microscope (for example, KEYENCE VE7800). Measure with magnification. Here, the reason why the absorbent article of the sample is frozen is to prevent the thickness from fluctuating due to compression during cutting.

  Next, a part of manufacturing method of the absorbent article 1 according to the first embodiment will be described. In addition, about the method which is not demonstrated, the existing method can be used. The manufacturing method of an absorbent article performs a surface sheet production | generation process as a 1st step. Specifically, the surface sheet is compressed in the thickness direction T to form the surface sheet pressing portion 11. In this compression processing, for example, the surface sheet 10 is passed through an embossing roll that performs heating and pressurization, thereby forming a lattice-shaped uneven processing.

  Next, as a second step, a surface sheet joining step is performed. Specifically, the top sheet and the side sheets 41 and 42 are bonded by, for example, heat welding.

  As a third step, an absorber molding process is performed. Specifically, the absorber 30 is formed by molding pulp as a material of the absorber with a molding drum. In addition, a reverse order may be sufficient as the order of the manufacturing process of the surface sheet of a 1st step and a 2nd step, and the absorber molding process of a 3rd step.

  In the fourth step, a joining process is performed. Specifically, the joining process which joins the absorber shape | molded in the 3rd step, and the surface sheet and side sheet which were joined in the 2nd step is performed.

  In the fifth step, a pressing process is performed. Specifically, the absorber 30 and the topsheet 10 are compressed in the thickness direction to form the squeezed portion 80.

  In the sixth step, a back sheet joining step is performed. Specifically, the absorber, the top sheet, and the like that have formed the compressed parts are joined to the back sheet. After joining the back sheet, a step of applying an adhesive is provided. The absorbent article which concerns on this Embodiment can be manufactured according to said process.

(Second Embodiment)
Next, an absorbent article 1A according to the second embodiment will be described based on FIG. In the following description of the embodiment, only the configuration different from that of the first embodiment will be described, and the description of the same configuration as that of the first embodiment will be omitted by using the same reference numerals.

  The absorbent article 1A according to the second embodiment is different from the absorbent article 1 according to the first embodiment in the shape of the surrounding pressing part 84. In the absorbent article 1A according to the second embodiment, the maximum width position WM in which the length in the width direction in the second area NA is the longest is disposed in front of the center in the longitudinal direction of the second area NA.

  The maximum width position WM in which the length in the width direction in the second region NA is the longest is located on the outermost side in the width direction in the second region NA, and the absorbent article is pressed inward from the outer side in the width direction. At this time, it becomes a base point for pressing the second region NA inward in the width direction. The external force from the outer side in the width direction to the inner side due to the movement of the wearer or the like acts on the central area CA arranged near the crotch part. Therefore, when the maximum width position WM serving as the base point of deformation of the second area NA is positioned in front of the longitudinal center NACL of the second area NA, the external force acting on the central area CA is changed to the base point of deformation (maximum width position). WM) and the second area NA can be easily raised.

  Moreover, in the state which the absorbent article deform | transformed from the width direction outer side to the width direction inner side, the height which the part inside the width direction inside the largest width position WM in 2nd area | region NA protrudes most on the wearer side becomes high. Therefore, it is desirable to provide the maximum width position of the second region NA at a position where the wearer's body dent can be filled.

(Third embodiment)
Next, an absorbent article 1B according to the third embodiment will be described based on FIG. The absorbent article 1B according to the third embodiment is different from the absorbent article 1 according to the first embodiment in the shape of the surrounding pressing part 84. In the absorbent article 1 </ b> B according to the third embodiment, an encircling squeezed part 84 is configured by a longitudinal squeezing part 81 and a dotted squeezing part 83.

  A point-like compressed portion 83 is formed on the outer side in the width direction of the second region NA surrounded by the enclosed compressed portion 84. Therefore, the rigidity on the outer side in the width direction relative to the second area NA can be made relatively higher than the rigidity of the second area NA, and when a force is applied from the outer side to the inner side of the absorbent article, The two-region NA can be more easily deformed. Moreover, 2nd area | region NA of the absorbent article 1B which concerns on 3rd Embodiment is arrange | positioned ranging over the center area | region CA in the back from the longitudinal direction center of a center area | region.

(Fourth embodiment)
Next, an absorbent article 1C according to the fourth embodiment will be described with reference to FIG. The absorbent article 1C according to the fourth embodiment is different in the shape of the absorbent article 1 according to the first embodiment and the compressed portion 80. In the absorbent article 1C according to the fourth embodiment, the longitudinal direction compressed portion 81 and the width direction compressed portion 82 are continuously surrounded, and the compressed portion 84 is formed.

  A point-like compressed portion 83 and a pair of longitudinal direction compressed portions 81 are formed on the outside in the width direction of the surrounding compressed portion 84. 1 C of absorbent articles have the overlap area | region OA where the longitudinal direction pressing part 81 and the surrounding pressing part 84 overlap in the longitudinal direction L. As shown in FIG. The maximum width position WM of the second area NA is provided in the overlapping area OA.

  The maximum width position WM is a portion that is located on the outermost side in the width direction in the second area NA, and is a portion that becomes a base point when deforming. When a force is applied toward the inside from the outside in the width direction, the inside is deformed inward with the maximum width position WM as a base point. A longitudinal squeezing portion is formed outside the maximum width position in the width direction, and the longitudinal squeezing portion 81 is disposed in the central region CA. Therefore, when an external force is applied from the width direction outer side to the width direction inner side in the central area CA, the maximum width position WM of the second area NA is deformed to the width direction inner side via the longitudinal direction compressed portion 81, and the second area The NA is deformed so as to bulge toward the wearer.

  In addition, when external force acts toward the width direction inner side from the width direction outer side, in order to make an external force act efficiently with respect to the surrounding pressing part 84 from the longitudinal direction pressing part 81, the longitudinal direction pressing part 81 and the surrounding pressing part The distance in the width direction with respect to 84 (the distance between the maximum width position WM and the longitudinal direction compressed portion 81) is preferably shorter.

  The point-like compressed portion 83 extends rearward from the root portion of the rear portion in the longitudinal direction of the wing portions 43 and 44. The point-like compressed portion 83 increases the rigidity of the root portions of the wing portions 43, 44, the root portions of the wing portions 43, 44 are held in a planar shape, and leakage from the vicinity of the rear portions of the wing portions 43, 44 can be prevented. .

(Fifth embodiment)
Next, an absorbent article 1D according to the fifth embodiment will be described with reference to FIG. The absorbent article 1D according to the fifth embodiment is different in the shape of the absorbent article 1 according to the fourth embodiment and the longitudinal pressing portion 81, and the configuration of the second region is different.

  In the absorbent article 1D according to the fifth embodiment, similarly to the absorbent article 1C according to the fourth embodiment, the longitudinal direction compressed portion 81 and the width direction compressed portion 82 are continuously surrounded, and the compressed portion 84 is formed. Is formed.

  A longitudinal direction compressed portion 81 is formed on the outer side in the width direction with respect to the surrounding compressed portion 84. The longitudinal direction compressed portion 81 is a first curved portion 81X that is bent from the inside in the width direction toward the outside along the longitudinal direction L, a second curved portion 81Y that is bent from the outside in the width direction to the inside along the longitudinal direction, and Have The inflection point 81Z, which is the boundary between the first curved part 81X and the second curved part 81Y, is arranged behind the maximum width position WM of the second area NA.

  The first curved portion 81X and the second curved portion 81Y have different curved shapes and different deformation modes when an external force is applied. Moreover, the internal pressure which propagates the longitudinal direction pressing part 81 is interrupted | blocked by the inflection point 81Z, and it becomes difficult to transmit force behind it. Thus, for example, when the maximum width position positioned in front of the inflection point is deformed from the base point, the deformation is blocked by the inflection point, making it difficult to transmit rearward from the inflection point.

  In the absorber 30 located in the second region NA, a slit SL along the longitudinal direction L is formed. By forming the slit SL, the rigidity of the portion decreases. Due to the difference in rigidity between the slit SL and the second area NA located around the slit SL and the difference in rigidity between the slit SL and the periphery of the second area NA, the slit SL is easily deformed from the base point. Therefore, it becomes easy to deform | transform so that it may bulge to the surface sheet 10 side, and it can fit the body and can arrange | position the absorbent article 1. FIG.

  Although the contents of the present invention have been disclosed through the embodiments of the present invention as described above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  For example, the maximum width position WM of the surrounding pressing part 84 according to the present embodiment may be arranged so as to overlap the adhesive 50 applied to the back sheet 20 in the thickness direction T. When the absorbent article 1 is fixed to the undergarment S via the adhesive 50, the maximum width position WM serving as the base point of the second area NA can be fixed to the undergarment. Moreover, the part which swells to the surface sheet side becomes easy to leave | separate from underwear by not attaching an adhesive to the back surface side of the area | region inside the width direction rather than the maximum width position. Since the second region is not fixed to the undergarment, the second region is likely to bulge toward the top sheet side, and it is easy to realize free deformation adapted to the body.

  The shape of the surrounding compressed part 84 may be the same as the shape of the longitudinal direction compressed part 81 and the width direction compressed part 82, and may be comprised so that shapes, such as length, a width | variety, and an area, may differ. Moreover, you may comprise so that the pressing intensity of an enclosure pressing part may differ from the pressing intensity of the longitudinal direction pressing part 81 and the width direction pressing part 82. FIG. For example, by making the width and area of the surrounding compressed portion 84 relatively small or reducing the compression strength, excessive rigidity in the second region is prevented and a soft curve is formed along with the deformation of the body. It is possible to fit the body.

  For example, since the longitudinal direction compression part 81 becomes a deformation | transformation base point of an absorbent article, the compression strength and rigidity more than fixed are calculated | required. Moreover, while the longitudinal direction compression part 81 touches an inner crotch, the surrounding pressing part 84 located in the inner side touches the comparatively delicate area | region of a body. Therefore, by making the squeezing strength and area of the surrounding squeezing part 84 smaller than the longitudinal squeezing part 81, it is possible to improve the touch of the part in contact with the relatively delicate region of the body. From such a viewpoint, it is desirable that the surrounding pressing part 84 is constituted by the point-like pressing part 83.

  The longitudinal direction pressing part may be two of the first longitudinal direction pressing part and the second longitudinal direction pressing part, or may be one. Further, for example, in the absorbent article, a gather may be formed at the outer end in the width direction of the absorbent body.

  CA ... central region, CACL ... central region longitudinal center, F1 ... front region, F2 ... rear region, L ... longitudinal direction, NACL ... longitudinal center, OA ... overlapping region, PA ... first region, SL ... slit, S ... Underwear, T ... Thickness direction, W ... Width direction, WM ... Maximum width position, X ... Boundary, 1, 1A, 1B, 1C, 1D ... Absorbent article, 10 ... Top sheet, 11 ... Top sheet compression part, 20 ... Back sheet, 30 ... Absorber, 31 ... Core part, 41, 42 ... Side sheet, 43, 44 ... Wing part, 50 ... Adhesive, 60 ... Hot melt adhesive, 80 ... Squeeze part, 81 ... Longitudinal squeeze 81A ... 1st longitudinal direction pressing part, 81B ... 2nd longitudinal direction pressing part, 82 ... Width direction pressing part, 82A ... Width direction pressing part, 82A ... 1st width direction pressing part, 82B ... 2nd width direction pressure Parts, 83 ... compressed points section, 84 ... surrounding compressing portion, 90 ... release sheet

Claims (6)

It has a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the top sheet and the back sheet, and the absorber includes the top sheet and the absorber. A plurality of compressed parts compressed in the thickness direction of the absorbent article are formed, the absorbent article,
The absorber is contained in the crotch portion abutting region of the wearer has a excretory opening contact area disposed opposite the vaginal opening of the wearer,
The squeezing part is dotted or linear so as to surround a point-like squeezing part disposed in the excretory opening contact area and an area including the center in the width direction of the absorber behind the excretion opening contact area. A pair of longitudinal squeezing parts that are arranged on both sides in the width direction than the surrounding squeezing part and that extend from the width direction outer side to the excretory opening contact region than the surrounding squeezing part , With
The area surrounded by the surrounding pressing part is an area where the pressing part is formed in 5% or less of the entire area surrounded by the surrounding pressing part, or an area where no pressing part is formed, 15 When the force which has a maximum width of -40 mm and a maximum length of 60-120 mm and is applied to the excretory opening contact region from the width direction outer side to the width direction inner side is applied, the longitudinal direction compressed portion And the absorbent article which is pressed by the said width direction inner side through the said surrounding pressing part, and is comprised so that it can protrude to a wearer's skin contact surface side. The said pressing part is further provided with the width direction pressing part extended in the width direction of the said absorbent article, and the 2nd point-like pressing part provided in the back rather than the said surrounding pressing part ,
The width direction compressing portion, the said second compressed points section is provided between the surrounding compressed portion, the absorbent article according to claim 1. The absorbent article according to claim 1 or 2 , wherein a plurality of third point-like compressed parts are intermittently formed between the surrounding compressed part and the longitudinal compressed part. The longitudinal squeezed portion includes a first curved portion that bends inward from the inner side in the width direction along the longitudinal direction, and a second curved portion that bends inward from the outer side in the width direction along the longitudinal direction. And
The inflection point, which is the boundary between the first curved portion and the second curved portion, is arranged behind the maximum width position where the length in the width direction is the longest in the region surrounded by the surrounding compressed portion. The absorbent article according to any one of claims 1 to 3 . The length in the width direction of the region surrounded by the surrounding compressed portion, the is configured to be shorter gradually toward the rear of the absorbent article, according to any one of claims 1 to 4 Absorbent articles. The absorbent article in any one of Claims 1-5 in which the slit along the said longitudinal direction is formed in the said absorber located in the area | region enclosed by the said enclosure pressing part .

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