WO2014208363A1

WO2014208363A1 - Absorbent article and method for manufacturing same

Info

Publication number: WO2014208363A1
Application number: PCT/JP2014/065714
Authority: WO
Inventors: 隆男和田
Original assignee: 株式会社瑞光
Priority date: 2013-06-25
Filing date: 2014-06-13
Publication date: 2014-12-31
Also published as: CN105228567A; CN105228567B; JP6422128B2; JPWO2014208363A1

Abstract

An absorbent article in which an absorbing body is disposed between a liquid-permeable top sheet and a non-liquid-permeable back sheet, the absorbent article characterized in that the width of an end part of the absorbent article at one end in the longitudinal direction thereof is greater than the width of an end part of the absorbent article at the other end thereof.

Description

Absorbent article and manufacturing method thereof

The present invention relates to an absorbent article such as a sanitary napkin or an incontinence urine pad and a method for producing the same.

In general, an absorbent article such as a sanitary napkin forms a continuous laminate by sandwiching an absorbent body between a liquid-permeable top sheet and a liquid-impermeable back sheet, and the continuous laminate is formed into a substantially rectangular outer shape. It is obtained by cutting out along the shape (for example, refer to Patent Document 1). Further, in this type of absorbent article, wings for attaching the absorbent article to the crotch part of the underwear are formed on both side portions that are long sides as required (see, for example, Patent Document 2). .

JP2007-6923A JP04-300547A

When the absorbent article is formed with a wide width, the amount of absorption can be increased and the wearer's hip side can be covered over a wide range. However, if the width of the front and rear intermediate portions is excessive, a feeling of strangeness may occur at the time of wearing, and the fit may be reduced.

An object of the present invention is to provide an absorbent article and a method for manufacturing the same, which are excellent in fit, can improve absorption performance, and can be efficiently produced with less waste of materials.

The absorbent article of the present invention is an absorbent article in which an absorber (4) is disposed between a liquid-permeable top sheet (2) and a liquid-impermeable back sheet (3),
The width (W5) of one end (5) in the longitudinal direction (L) of the absorbent article is larger than the width (W6) of the other end (6).

In the absorbent article of the present invention, the width of one end portion is larger than the width of the other end portion. The part side can be covered over a wide range. Furthermore, the width of the front and rear intermediate portions does not become excessive according to the narrow front portion. Therefore, the absorbent article can maintain good fit.

About the absorbent body, according to one end of the absorbent article formed wide, the amount of the absorbent body accommodated in the rear side portion in the longitudinal direction of the absorbent article is increased, the accommodation area You may enlarge it.
That is, the absorbent body may be rectangular in plan view, but preferably, the width of one end may be larger than the width of the other end in accordance with the outer shape of the absorbent article. In this case, high absorption performance of the absorbent article can be exhibited such that body fluid can be quickly absorbed and the amount of absorption can be increased.

The absorbent article has a cuff extending in the longitudinal direction at each side portion extending in the longitudinal direction,
The outer side edge of each cuff extends obliquely along the side,
The side edge inside each said cuff may be set so that it may extend in parallel with respect to the centerline which bisects the said absorbent article in the width direction which cross | intersects the said longitudinal direction.
In this case, the width of one end of the cuff in the longitudinal direction is larger than the width of the other end, and the cuff can be securely attached to the absorbent article.

A production method of the present invention is a method for continuously producing a plurality of the absorbent articles,
A top sheet supply step (S1) for supplying a continuous sheet (W2) forming the top sheet (2);
An absorbent body supplying step (S2) for intermittently supplying the individual absorbent bodies (4) in the plurality of absorbent articles;
A backsheet supply step (S3) for supplying a continuous sheet (W3) forming the backsheet (3);
In the state where the plurality of absorbent bodies (4) are sandwiched between the continuous sheets (W2) and (W3), the continuous sheets (W2) and (W3) are joined together to form a continuous laminate (8). A bonding step (S4) for forming
Among the individual absorbers, a predetermined one virtual first in which the continuous laminate (8) is inclined in the first direction with respect to the longitudinal direction (L) between the absorbers (4) adjacent to each other. A first separation step (S51) that cuts along the cutting line (L1) and separates the preceding absorbent article (1);
The continuous laminated body (8) between the absorbent bodies (4) adjacent to each other among the individual absorbent bodies is opposite to the one virtual first cutting line (L1) with respect to the longitudinal direction (L). The second absorbent article (1) that follows the preceding absorbent article (1) is cut along a predetermined second virtual second cutting line (L2) that is inclined in the second direction on the side. A separation step (S52),
The first separation step (S51) and the second separation step (S52) are alternately repeated to obtain individual absorbent articles (1).

According to this manufacturing method, each said cutting line is formed in the direction inclined with respect to the longitudinal direction of the said continuous laminated body, and the 1st (the 1st) at the time of separating (separating) an absorbent article immediately before 2) The second (first) cutting line is inclined to the opposite side with the longitudinal direction of the continuous laminate as the center.
The absorbent article separated from the continuous laminate by the cutting has a shape in which the width of one end in the longitudinal direction is larger than the width of the other end. Since one preceding absorbent article that has been separated is in a posture rotated by 180 degrees with respect to the next adjacent absorbent article, there is no cut loss during the cutting, or the amount of cut loss generated is greatly reduced. . For this reason, it is possible to efficiently produce materials with little waste of materials.

Moreover, you may make each absorbent article obtained trapezoidal by making each said cutting line into linear form. Alternatively, the cutting line may be a curved shape having an arbitrary shape, for example, a shape that can cover the wearer's buttocks over a wider range.
Moreover, in the intermediate part between the both ends of the said absorbent article, the shape of the said cutting line so that the recessed part dented to one absorber side and the convex part protruded to the adjacent absorber side may be formed in each said side part May be set. In this case, it can be set as an absorbent article provided with the wing which protrudes from the both sides of an absorptive article to the side (adjacent absorber side) by this pair of convex parts.

Another manufacturing method of the present invention is a method for continuously manufacturing a plurality of absorbent articles including a top sheet (2), a back sheet (3), an absorber (4), and a pair of cuffs (15). And
A top sheet supply step (S1) for supplying a continuous sheet (W2) forming the top sheet (2);
An absorbent body supplying step (S2) for intermittently supplying the individual absorbent bodies (4) in the plurality of absorbent articles;
A backsheet supply step (S3) for supplying a continuous sheet (W3) forming the backsheet (3);
In the state where the plurality of absorbent bodies (4) are sandwiched between the continuous sheets (W2) and (W3), the continuous sheets (W2) and (W3) are joined together to form a continuous laminate (8). A bonding step (S4) for forming
The cuff member so that the longitudinal direction (L) of the rectangular n cuff members (15C) to be 2n cuffs (15) is orthogonal to the transport direction (F) of the continuous laminate (8). (15C) disposing one after another intermittently on the continuous laminate (8) between the absorbers (4) adjacent to each other among the individual absorbers (S41);
Predetermined that the continuous laminate (8) and the cuff member (15C) are inclined in the first direction with respect to the longitudinal direction (L) between the absorbers (4) adjacent to each other among the individual absorbers Are cut along one virtual first cutting line (L1) to cut one cuff member (15C) out of the n cuff members (15C), and one preceding absorbent article ( A first separation step (S51) for separating 1);
Among the individual absorbent bodies, the continuous laminated body (8) and the cuff member (15C) between the absorbent bodies (4) adjacent to each other are cut into the one virtual first cut with respect to the longitudinal direction (L). One of the n cuff members (15C) is cut along a predetermined second virtual second cutting line (L2) inclined in the second direction opposite to the line (L1). A second separation step (S52) for cutting the cuff member (15C) and cutting the absorbent article (1) next to the preceding absorbent article (1),
The first separation step (S51) and the second separation step (S52) are alternately repeated to obtain individual absorbent articles (1).

According to the present manufacturing method, the cuff members are intermittently arranged on the continuous laminate one after another so that the longitudinal direction of the rectangular cuff member is orthogonal to the transport direction of the continuous laminate. The arrangement of the cuff member is easy.

FIG. 1 is a plan view showing a part of the absorbent article according to the first embodiment of the present invention. FIG. 2 is a schematic configuration diagram showing a method for manufacturing an absorbent article of the same example. FIG. 3 is a schematic configuration diagram showing a separation process and the like of the same embodiment. FIG. 4 is a plan view showing a part of the absorbent article of the second embodiment. FIG. 5 is a schematic configuration diagram showing a separation step and the like in the method for manufacturing an absorbent article according to the third embodiment. FIG. 6 is a schematic configuration diagram showing a method for manufacturing an absorbent article of the same example.

The present invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings. However, the examples and figures are for illustration and description only and should not be used to define the scope of the present invention. The scope of the present invention is defined only by the claims. In the accompanying drawings, the same part numbers in a plurality of drawings indicate the same or corresponding parts.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a first embodiment of an absorbent article (1), the absorbent article (1) comprising a liquid-permeable top sheet (2), a liquid-impermeable back sheet (3), And an absorber (4) disposed between the two sheets (2, 3).
The top sheet (2) may be liquid permeable, and preferably a porous or non-porous nonwoven fabric or a porous plastic sheet is used to cover the surface of the absorbent body (4). As the material fibers constituting the nonwoven fabric, synthetic fibers, natural fibers such as recycled fibers and cotton can be adopted, and nonwoven fabrics obtained by known processing methods such as a spunlace method and a thermal bond method are used. be able to.

The backsheet (3) only needs to have liquid impermeability so that the body fluid absorbed by the absorbent body does not leak to the outside. For example, in addition to a polyolefin resin sheet, a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like is used. In recent years, a material having moisture permeability is preferably used from the viewpoint of preventing stuffiness.
The absorbent body (4) is formed of fluff pulp, air laid nonwoven fabric or the like, and may contain a water-absorbing polymer. Body fluids such as menstrual blood discharged from the wearer are absorbed by the absorbent body (4) through the top sheet (2).

A diffusion sheet (not shown) may be disposed between the top sheet (2) and the absorber (4). The diffusion sheet is formed of, for example, a non-woven fabric that has been subjected to a hydrophilic treatment, whereby body fluid flowing from the top sheet (2) side spreads on the surface of the absorber (4) and is quickly absorbed by the absorber (4). The

Between the absorber (4) and the back sheet (3), a carrier sheet (not shown) formed of, for example, a tissue or a nonwoven fabric may be disposed. The carrier sheet has a continuous web shape in the manufacturing process, and the absorbent body (4) is intermittently disposed on the carrier sheet and conveyed.

On the surface of the top sheet (2) (on the skin side of the wearer), as shown by phantom lines in FIGS. 1 and 3, a pair of three-dimensional cuffs (15) ( Also referred to as a side sheet). The three-dimensional cuff (15) is formed of, for example, a water-repellent or hydrophobic nonwoven fabric and rises three-dimensionally. Thereby, the side leakage of body fluid is prevented.

As shown in FIG. 1, this absorbent article (1) is formed in a trapezoidal shape in plan view. The width (W5) of one end (5) in the longitudinal direction (L) is larger than the width (W6) of the other end (6). The wide end portion (5) is disposed on the back side of the body, and the narrow end portion (6) is disposed on the front side of the body so that the absorbent article (1) is worn by the wearer. In this absorbent article (1), the wearer's buttocks side is covered over a wide range at the wide end portion (5), and the intermediate portion (56) between the pair of end portions (5, 6) is covered. The width is not excessively wide. Therefore, a good fit will be obtained.
If the width of the absorbent article (1) in the width direction (W) is too small, it will be liable to shift when worn. On the other hand, if the width of the absorbent article (1) in the width direction (W) is too large, a sense of incongruity will be generated at the time of wearing, and the fit will be lowered. For this reason, the ratio (W5 / W6) of the width (W5) of the wide end portion (5) to the width (W6) of the narrow end portion (6) in the absorbent article (1) is preferable. May be set to 1.5 to 2.2, more preferably set to 1.6 to 2.1, and most preferably set to 1.7 to 2.0.

As shown in FIG. 1, the said absorber (4) is formed in the substantially trapezoid shape along the external shape of this absorbent article (1), Therefore The area of an absorber (4) becomes large. Let's go. For example, the width direction (W) of the width (W41) of one end (41) in the longitudinal direction (L) of the absorbent body (4) is larger than the width (W42) of the other end (42). Is also big. Thereby, a large amount of body fluid is quickly absorbed and held in the absorber (4).
If the width of the absorbent body (4) in the width direction (W) is too small, the wearer's body fluid will not be sufficiently absorbed. On the other hand, if the width in the width direction (W) of the absorber (4) is too large, the absorber (4) will be heavy. For this reason, the ratio (W41 / W42) of the width (W41) of the wide end (41) to the width (W42) of the narrow end (42) in the absorber (1) is preferably It may be set to 1.6 to 2.4, more preferably set to 1.7 to 2.3, and most preferably set to 1.8 to 2.2.
In addition, the shape of this absorber (4) may not be the shape along the external shape of an absorbent article, for example, a planar view may be a rectangle or other arbitrary shapes.

Next, a first embodiment of the method for producing the absorbent article (1) will be described.
As shown in FIG. 2, the manufacturing method of the said absorbent article (1) is a top sheet supply process (S1), an absorber supply process (S2), a back sheet supply process (S3), and a joining process (S4). ), A first separation step (S51), and a second separation step (S52).

In the back sheet supply step (S3), a continuous web (an example of a continuous sheet) (W3) forming the back sheet (3) is continuously supplied.
In the absorber supply step (S2), the absorber (4) is intermittently supplied by the intermittent supply device (7) onto the continuous web (W3) forming the back sheet (3). The supplied absorber (4) is arranged in a posture rotated 180 degrees with respect to the preceding absorber (4).
In the top sheet supply step (S1), the continuous web (an example of the continuous sheet) (W2) forming the top sheet (2) is the continuous web (W3) forming the back sheet (3) and the absorber (4). ) Continuously. That is, the absorber (4) is sandwiched between the two continuous webs (W2, W3).

Next, in the joining step (S4), the continuous webs (W2, W3) are joined to each other by the joining device (9) with the absorber (4) sandwiched therebetween, and the continuous laminate (8). Is formed.
Thereafter, as shown in FIG. 2 and FIG. 3, in the first separation step (S51), the continuous laminate (8) is separated between the adjacent absorbers (4, 4) by the first cutting device (101). Are cut along the first cutting line (L1) and separated into individual absorbent articles (1). Subsequently, as shown in FIG. 3, in the second separation step (S <b> 52), the continuous laminate (8) is moved between the adjacent absorbers (4, 4) by the second cutting device (102). Cut along two cutting lines (L2) and divided into individual absorbent articles (1).

Hereinafter, the first and second separation steps (S51, S52) will be described in detail.
As shown in FIG. 3, in the first separation step (S51), the first cutting line (L1) is the longitudinal direction (L) of the absorbent article (1) to be separated, that is, the continuous laminate (8). Inclined in the first direction with respect to the longitudinal direction (L). The continuous laminate (8) is cut along the first cutting line (L1), and the preceding absorbent article (1) is cut. On the other hand, in the second separation step (S52), the second cutting line (L2) upstream of the first cutting line (L1) is second in the longitudinal direction (L) of the continuous laminate (8). It is formed to be inclined in the direction. The continuous laminate (8) is cut along the second cutting line (L2), and the absorbent article (1) next to the preceding absorbent article (1) is cut.
That is, the inclination direction of the first and second cutting lines (L1, L2) is the inclination of the cutting line when the absorbent article (1) is separated immediately before cutting the continuous laminate (8). It inclines to the opposite side centering on the said longitudinal direction (L) with respect to a direction.
In other words, as shown in FIG. 1, in the absorbent article (1), the first side portion (1S) is formed so as to form a predetermined angle B with respect to the longitudinal direction (L), The second side portion (2S) is formed so as to form a predetermined angle −B with respect to the longitudinal direction (L).
That is, both side portions (1S, 2S) are formed in a line-symmetric shape around a center line (CL) parallel to the longitudinal direction (L).
As a result, each of the individual absorbent articles (1) is in a posture rotated 180 degrees with respect to the preceding absorbent article (1) having the same shape and size as the adjacent absorbent article (1), No cut loss occurs when cutting.

In the present embodiment, the first and second cutting lines (L1, L2) are formed in a straight line, so that no cut loss is caused by the cutting. However, in the present invention, each cutting line (L1, L2) is a continuous laminate ( It only needs to be inclined with respect to the longitudinal direction (L) of 8), and can be formed into an arbitrary curve. For example, a cutting line may be formed in a curved shape that causes roundness to wait at the four corners of the absorbent article (1), thereby causing a slight cut loss.

FIG. 4 shows a second embodiment of the absorbent article (1) of the present invention, wherein the both side portions (1S, 2S) are formed in a curved shape.
In the present embodiment, the side portions (1S, 2S) are concave portions (12) recessed inward toward the absorber (4) in the intermediate portion (56) between the both end portions (5, 6). And a convex portion (13) projecting to the outer side opposite to the inner side.
The concave portion (12) and the convex portion (13) are point-symmetric with respect to the point O. The point O is set at a position corresponding to the center of the center line (CL) in each of the side portions (1S, 2S). That is, the point O is set so that the length (L5) from one end (5) to the point O is equal to the length (L6) from the other end (6) to the point O. Has been.
In the absorbent article (1) of this example, the width (W5) on one end (5) side is larger than the width (W6) on the other end (6) side, as in the first example. . Moreover, the wing (14) formed of the said convex part (13) has a shape which protruded to the side (outside of the width direction (W)) in the said both sides (1S, 2S).
The outer shape of the absorbent body (4) disposed between the top sheet (2) and the back sheet (3) is such that the absorbent body (4) is reliably covered with both sheets (2, 3). The portions corresponding to the pair of recesses (12) are recessed toward the center of the absorbent article.
Other configurations, manufacturing processes, and the like are the same as those in the first embodiment of the absorbent article (1) and operate in the same manner, and thus the description thereof is omitted.

Next, a third embodiment of the absorbent article (1) of the present invention will be described with reference to FIG.
In the first and second separation steps (S51, S52) described later, the continuous laminate (8) is cut into individual absorbent articles (1) by a cutting device (not shown). The absorbent article (1) has a cuff (15) extending in the longitudinal direction (L) at each side portion (1S, 2S) extending in the longitudinal direction (L). The absorbent article (1) has a line-symmetric structure around a center line (CL) that bisects the absorbent article (1) in the width direction (X) intersecting the longitudinal direction (L). ing.

The outer side edge (15L) of the cuff (15) extends obliquely along the side portion. The one outer side edge (15L) is inclined and extended in the opposite direction to the other outer side edge (15L).
On the other hand, the inner side edge (15M) of the cuff (15) is set to extend in parallel to the center line (CL). That is, the inner side edge (15M) extends in a direction orthogonal to the width direction (X).

The width of the cuff (15) in the width direction (X) is such that the width (X1) of the cuff (15) on the wide end (5) side of the absorbent article (1) is that of the absorbent article (1). It is larger than the width (X2) of the cuff (15) on the end (6) side of the sandwich width. In other words, the width of the cuff (15) becomes narrower as it extends from the wide end (5) toward the narrow end (6).

As will be described later, in the absorbent article (1) of this example, the back sheet is folded at both ends in the longitudinal direction (L) to form pockets (P).
The other configuration is the same as that of the first embodiment of the absorbent article (1) and functions in the same manner, so that the description thereof is omitted.

Next, a second embodiment of the manufacturing method of the present invention will be described. The second embodiment is a method for manufacturing the absorbent article (1) of the third embodiment.
As shown in FIG. 6, the manufacturing method of the said absorbent article (1) is a top sheet supply process (S1), an absorber supply process (S2), a back sheet supply process (S3), and a joining process (S4). ), A cuff placing step (S41), a continuous web folding step (S42), a first separation step (S51), and a second separation step (S52).

In the back sheet supply step (S3), a continuous web (an example of a continuous sheet) (W3) that forms the back sheet (3) of the absorbent article (1) is continuously supplied.
In the absorber supplying step (S2), the absorber (4) is intermittently supplied by an intermittent supply device (not shown) onto the continuous web (W3) forming the back sheet (3). The supplied absorber (4) is arranged in a posture rotated 180 degrees with respect to the preceding absorber (4).
In the top sheet supply step (S1), the continuous web (an example of the continuous sheet) (W2) that forms the top sheet (2) of the absorbent article (1) is the continuous web (W3) that forms the back sheet (3). And continuously supplied above the absorber (4). That is, the absorber (4) is sandwiched between the two continuous webs (W2, W3).
The width in the width direction (Y) intersecting the conveyance direction (F) of the continuous web (W2) forming the top sheet is the width in the direction (Y) of the continuous web (W3) forming the back sheet (3). Smaller than.

Next, in the joining step (S4), the two continuous webs (W2, W3) are joined to each other by a joining device (not shown) with the absorber (4) sandwiched therebetween, so that the continuous laminate (8) is obtained. It is formed.

Next, the cuff members (15C) are intermittently placed on the continuous laminate (8) one after another so that the longitudinal direction (L) of the rectangular cuff members (15C) is orthogonal to the transport direction (F). Be placed. Each cuff member (15C) is arrange | positioned between mutually adjacent absorbers (4). The width in the longitudinal direction (L) of the cuff member (15C) is smaller than the width in the width direction (Y) intersecting the transport direction (F) of the continuous web (W3).
Each cuff member (15C) is cut into two cuffs (15) in a subsequent separation step. 5 and FIG. 6, the adhesion location of the cuff member (15C) is indicated by a halftone dot.

Next, the side edges (W31) of the continuous web (W3) forming the back sheet (3) are folded back. That is, a portion having a larger width than the continuous web (W2) and the cuff member (15C) in the width direction (Y) is folded back. The folded side edges (W31) overlap the continuous web (W2) and the cuff member (15C). By this folding step (S43), pockets (P) in the individual absorbent articles (1) shown in FIG. 5 are formed.

Thereafter, in the first separation step (S51), the continuous laminated body (8) and the cuff member (15C) are separated by a first cutting device (not shown) between the absorbent bodies (4) adjacent to each other. L1), the one cuff member (15C) is cut into two cuffs (15), and the continuous laminate (8) is divided into individual absorbent articles (1) ( Carved).
That is, in this step (S51), one cuff member (15C) is cut along the first cutting line (L1) extending obliquely with respect to the longitudinal direction (L) of the cuff member (15C). And cut into two cuffs (15). Specifically, the cuff member (15C) is cut into two cuffs (15) so that one cuff rotates 180 degrees with respect to the other cuff.

Subsequently, in the second separation step (S52), the continuous laminated body (8) and the cuff member (15C) are second cut lines between the absorbent bodies (4) adjacent to each other by a second cutting device (not shown). Cut along (L2), the one cuff member (15C) is cut into two cuffs (15), and the continuous laminate (8) is divided into individual absorbent articles (1). .
That is, in this step (S52), one cuff member (15C) is cut along the second cutting line (L2) extending obliquely with respect to the longitudinal direction (L) of the cuff member (15C). And cut into two cuffs (15). Specifically, the cuff member (15) is cut into two cuffs (15) so that one cuff rotates 180 degrees with respect to the other cuff.

The absorbent article and the manufacturing method thereof described in each of the above-described examples are illustrated in order to embody the technical idea of the present invention, and the shape, dimensions, material, manufacturing procedure, and the like of each member are described in this example. The present invention is not limited to the above, and various changes and modifications can be made within the scope of the claims of the present invention.

For example, in the said Example, the absorber was arrange | positioned intermittently on the continuous web which forms a back sheet | seat in an absorber supply process. However, in the present invention, the absorber may be intermittently disposed on the continuous web forming the top sheet, or the absorber may be intermittently disposed and supplied on a carrier sheet (not shown). Good.
Moreover, you may attach a separate wing to an absorbent article.
In the second embodiment of the absorbent article, the length from one end (5) to the point O (L5) and the length from the other end (6) to the point O (L6). The point O may be set so as to be different.
In the second embodiment of the manufacturing method, the width of the continuous web serving as the back sheet may be equal to the width of the continuous web serving as the top sheet.
In the second embodiment of the manufacturing method, the width in the longitudinal direction of the cuff member may be smaller than the width of the continuous web serving as the top sheet.
Further, in the second embodiment of the manufacturing method, the shape of the cuff member is not limited to a rectangle, and may be, for example, a rounded corner.
Moreover, the cuff member of the absorbent article of the present invention may have elasticity in the longitudinal direction. In this case, in the second embodiment of the manufacturing method, since the longitudinal direction of the cuff member is arranged so as to be orthogonal to the transport direction of the continuous laminate, the cuff member is inclined with respect to the transport direction. It is easier to place the cuff member than to place it.

The absorbent article of the present invention is suitable for sanitary napkins, incontinence urine pads, and the like because it can be efficiently produced with little waste of materials, has excellent fit, and can improve absorption performance.

1: Absorbent article 2: Top sheet 3: Back sheet 4: Absorber 5: One end (wide end) 6: The other end (narrow end)
7: Intermittent supply device 8: Continuous laminated body 9: Joining device 101: First cutting device 102: Second cutting device 12: Concave portion 13: Convex portion 14: Wing 15: Solid cuff (cuff) 15C: Cuff member 15M: Cuff Side edge 15L: Side edge outside cuff 1S: First side 2S: Second side L1: First cutting line L2: Second cutting line S1: Topsheet supply step S2: Absorber supply step S3 : Backsheet supply step S4 joining step S41: Cuff member placement step S42: Folding step S51: First separation step S52: Second separation step CL: Center line L: Longitudinal direction of continuous laminate (8) P: Pocket

Claims

An absorbent article in which an absorbent body (4) is disposed between a liquid-permeable top sheet (2) and a liquid-impermeable back sheet (3),
An absorbent article, wherein a width (W5) of one end (5) in the longitudinal direction (L) of the absorbent article is larger than a width (W6) of the other end (6).
The absorbent article according to claim 1, wherein a width (W41) of one end (41) of the absorbent body (4) is larger than a width (W42) of the other end (42).
Wings (14) projecting from the opposite sides (1S), (2S) of the absorbent article extending in the longitudinal direction (L) toward the outside in the width direction (W) intersecting the longitudinal direction (L) are further provided. The absorptive article according to claim 1 provided.
A pair of recesses (12) recessed inward toward the absorbent body (4) at the intermediate portion (56) of both end portions (5) and (6) of the absorbent article, and to the outside opposite to the inside The absorptive article according to claim 1 provided with a pair of projected parts (13) projected.
The absorbent article has a cuff (15) extending in the longitudinal direction at each side portion (1S) and (2S) extending in the longitudinal direction (L),
The outer side edge (15L) of each cuff (15) extends obliquely along the side part,
An inner side edge (15M) of each cuff (15) extends in parallel to a center line (CL) that bisects the absorbent article in the width direction (X) intersecting the longitudinal direction (L). The absorptive article according to claim 1 set up as follows.
A method for continuously producing a plurality of absorbent articles comprising the topsheet (2), the backsheet (3) and the absorbent body (4) according to any one of claims 1 to 4,
A top sheet supply step (S1) for supplying a continuous sheet (W2) forming the top sheet (2);
An absorbent body supplying step (S2) for intermittently supplying the individual absorbent bodies (4) in the plurality of absorbent articles;
A backsheet supply step (S3) for supplying a continuous sheet (W3) forming the backsheet (3);
In the state where the plurality of absorbent bodies (4) are sandwiched between the continuous sheets (W2) and (W3), the continuous sheets (W2) and (W3) are joined together to form a continuous laminate (8). A bonding step (S4) for forming
Among the individual absorbers, a predetermined one virtual first in which the continuous laminate (8) is inclined in the first direction with respect to the longitudinal direction (L) between the absorbers (4) adjacent to each other. A first separation step (S51) that cuts along the cutting line (L1) and separates the preceding absorbent article (1);
The continuous laminated body (8) between the absorbent bodies (4) adjacent to each other among the individual absorbent bodies is opposite to the one virtual first cutting line (L1) with respect to the longitudinal direction (L). The second absorbent article (1) that follows the preceding absorbent article (1) is cut along a predetermined second virtual second cutting line (L2) that is inclined in the second direction on the side. A separation step (S52),
The production method for obtaining individual absorbent articles (1) by alternately repeating the first separation step (S51) and the second separation step (S52).
A method for continuously producing a plurality of absorbent articles comprising a top sheet (2), a back sheet (3), an absorber (4) and a pair of cuffs (15) according to claim 5,
A top sheet supply step (S1) for supplying a continuous sheet (W2) forming the top sheet (2);
An absorbent body supplying step (S2) for intermittently supplying the individual absorbent bodies (4) in the plurality of absorbent articles;
A backsheet supply step (S3) for supplying a continuous sheet (W3) forming the backsheet (3);
In the state where the plurality of absorbent bodies (4) are sandwiched between the continuous sheets (W2) and (W3), the continuous sheets (W2) and (W3) are joined together to form a continuous laminate (8). A bonding step (S4) for forming
The cuff member so that the longitudinal direction (L) of the rectangular n cuff members (15C) to be 2n cuffs (15) is orthogonal to the transport direction (F) of the continuous laminate (8). (15C) disposing one after another intermittently on the continuous laminate (8) between the absorbers (4) adjacent to each other among the individual absorbers (S41);
Predetermined that the continuous laminate (8) and the cuff member (15C) are inclined in the first direction with respect to the longitudinal direction (L) between the absorbers (4) adjacent to each other among the individual absorbers Are cut along one virtual first cutting line (L1) to cut one cuff member (15C) out of the n cuff members (15C), and one preceding absorbent article ( A first separation step (S51) for separating 1);
Among the individual absorbent bodies, the continuous laminated body (8) and the cuff member (15C) between the absorbent bodies (4) adjacent to each other are cut into the one virtual first cut with respect to the longitudinal direction (L). One of the n cuff members (15C) is cut along a predetermined second virtual second cutting line (L2) inclined in the second direction opposite to the line (L1). A second separation step (S52) for cutting the cuff member (15C) and cutting the absorbent article (1) next to the preceding absorbent article (1),
The production method for obtaining individual absorbent articles (1) by alternately repeating the first separation step (S51) and the second separation step (S52).