JP6383723B2 - Absorbent article with wing and manufacturing method thereof - Google Patents

Description

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

  In general, in absorbent articles such as sanitary napkins, in order to attach the absorbent article to the crotch part of the underwear, an absorbent article with wings in which wings are formed on both side edges of the main body part is known. The wing is bent, and the folded portion is adhered to the outside of the crotch portion of the underwear, so that the absorbent article can be stably mounted at a predetermined position.

JP2001-145659A JP04-300547A

JP2001-145659A, as a method of manufacturing an absorbent article with wings, forms a laminate by sandwiching an absorber between a liquid-permeable top sheet and a liquid-impermeable back sheet. The method of cutting out along the external shape of the absorbent article with a wing is disclosed.
In this prior art, when an absorbent article with a wing is cut out from a laminated body having a predetermined width, a cut loss corresponding to the protruding length of the wing occurs in a portion without the wing, which causes an increase in cost of the product.

  On the other hand, JP04-300547A reduces the cut loss generated around the wing in the manufacturing process by cutting the absorbent articles with wings from a continuous laminate alternately in the reverse direction, thereby reducing the cost. Is disclosed.

  However, even in this prior art, it is inevitable that a considerable cut loss still occurs around the wing. Moreover, in this prior art, since the formation position of a wing is limited, a wing cannot be provided in arbitrary positions, such as the center part of the full length of an absorbent article, or its vicinity.

Furthermore, in both the above prior arts, the wing is cut out from the laminated body together with the main body portion, so that the wing is formed of the same material as the main body portion. Therefore, there is a problem that the wing cannot be formed of an arbitrary material.
For example, the laminated body usually includes a liquid-permeable top sheet and a liquid-impermeable back sheet. When the wing is formed of the laminated body, the rigidity of the wing is high. For this reason, when this absorbent article is mounted, the wings are not easily bent and the touch at the folds and the like may be deteriorated.

  An object of the present invention is to provide an absorbent article with a wing and a method for manufacturing the same, which can be efficiently produced while reducing waste generated in the material, and can arbitrarily set the material and formation position of the wing.

The absorbent article with a wing of the present invention has a main body (5) in which an absorbent body (4) is disposed between a liquid-permeable top sheet (2) and a liquid-impermeable back sheet (3), A pair of wings (6) protruding from the pair of side edges (1S) extending in the longitudinal direction (L) of the main body (5) toward the side (X) intersecting the longitudinal direction (L). Prepared,
The pair of wings (6) is formed by a wing sheet (7) continuous from one wing (6) to the other wing (6) of the pair of wings (6),
The wing sheet (7) is composed of a sheet different from the back sheet (3),
The skin surface (70) of the wing sheet (7) is fixed to the non-skin surface (31) of the back sheet (3).

  Both the wings are made of a series of wing sheets that are separate from the main body, and therefore have only a predetermined wing width with respect to the longitudinal direction regardless of the length in the longitudinal direction of the main body. The width of the wing may be considerably shorter than the length of the main body in the longitudinal direction.

Therefore, when the wing is formed on the main body, unlike the prior art, there is no cut loss around the wing, or the cut loss is greatly reduced. As a result, less material is wasted and efficient production becomes possible.

Both the wings are composed of wing sheets that are separate from the main body, and can be fixed at a desired position of the main body. Moreover, since both of these wings consist of a series of wing sheets, they can be joined to the back sheet in a wide range. Therefore, when the wing is folded in order to attach the absorbent article to the crotch portion of the undergarment, there is no possibility that the joint portion between the wing sheet and the back sheet is inadvertently detached.
In the present invention, the “skin surface” refers to a surface that directly or indirectly faces the wearer's skin surface when the absorbent article is worn, and the “non-skin surface” is opposite to the skin surface. Say the face.

In the present invention, “fixing” is a concept including at least adhesion. In the present specification, “attachment” may be replaced by the term “fixation”, and conceptually means that they are joined so that they cannot be easily removed. Specifically, “attachment” means means such as adhesion, welding or stitching (sewing), or a combination of these two or more means.

The wing sheet can be made of the same material as the top sheet or a laminate of the top sheet and the back sheet. However, the wing sheet is separate from the main body, and is not limited to the material of the back sheet, the top sheet, and the laminated material of the back sheet, and can be composed of any material different from these. .
For example, the touch can be improved by using a soft nonwoven fabric for the wing sheet. In addition, it is possible to increase the prevention of stuffiness by using a material having excellent air permeability. Alternatively, liquid leakage can be further enhanced by using a liquid-impermeable material. Further, the wing sheet is a separate member from the back sheet, and therefore, various decorations such as patterns and coloring can be applied to the wing sheet.

In the present invention, one manufacturing method for continuously manufacturing a plurality of the absorbent articles with wings is a top sheet supply step for continuously supplying the first continuous sheet (W2) forming the top sheet (2) ( S1)
An absorbent body supplying step (S2) for intermittently supplying individual absorbent bodies (4) in the plurality of absorbent articles;
A backsheet supply step (S3) for continuously supplying the second continuous sheet (W3) forming the backsheet (3);
In a 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 (11). A stacking step (S4) to be formed;
A main body part forming step (S5) for successively cutting the tip of the continuous laminate (11) to obtain the main body part (5) one after another;
A wing sheet supply step (S6) for continuously supplying a third continuous sheet (W7) forming the wing sheet (7);
The main body part (5) obtained in the main body part forming step (S5) is adjacent to each other with the longitudinal direction (L) intersecting the conveyance direction (F) of the third continuous sheet (W7). In a state where the main bodies (5) that fit each other are spaced apart from each other in the transport direction (F), the main bodies (5) are arranged on the third continuous sheet (W7) and placed on the third continuous sheet (W7). 5) a joining step (S7) for fixing the back sheet (3);
A separation step (S8) of cutting the third continuous sheet (W7) between the adjacent main body portions (5) to obtain the absorbent article one after another.

  In this one manufacturing method, the preceding main body portion fixed to the third continuous sheet forming the wing sheet in the joining step is disposed with a predetermined interval from the adjacent subsequent main body portion. In the separation step, the third continuous sheet is cut between the main body portions, whereby the absorbent articles with wings are individually separated with the wings extended from the main body portions.

  The wing sheet is fixed to the surface of the back sheet opposite to the top sheet, that is, the non-skin surface side of the back sheet. When the absorbent article is mounted, the wing of the wing sheet is folded and adhered to the outside of the crotch portion of the underwear. Therefore, it is preferable that a pressure-sensitive adhesive layer is formed in advance between adjacent main body portions in the wing sheet (third continuous sheet) before being cut in the separation step.

In this case, more preferably, the third continuous sheet is cut along a wing cutting line crossing the pressure-sensitive adhesive layer in the separation step. Thereby, one adhesive layer between main-body parts is divided | segmented and allocated to a pair of mutually adjacent wing sheet | seat.

In the present invention, another manufacturing method includes a top sheet supply step (S1) for continuously supplying the first continuous sheet (W2) forming the top sheet (2),
An absorbent body supplying step (S2) for intermittently supplying individual absorbent bodies (4) in the plurality of absorbent articles;
A backsheet supply step (S3) for continuously supplying the second continuous sheet (W3) forming the backsheet (3);
In a 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 (11). A stacking step (S4) to be formed;
A main body part forming step (S5) for successively cutting the tip of the continuous laminate (11) to obtain the main body part (5) one after another;
A wing sheet conveying step (S11) for continuously conveying the third continuous sheet (W7) forming the wing sheet (7);
A cutting step (S13) in which the third continuous sheet (W7) is cut along a virtual cutting line (15) extending in a direction crossing the transport direction (F) to successively form the wing sheets (7). When,
In a state where the longitudinal direction (X) of each wing sheet (7) intersects the longitudinal direction (L) of each main body (5), each wing sheet (7) is made of the continuous laminate (11). A part to be the back sheet (3) or a joining step (S14) for fixing to the back sheet (3).

In this another manufacturing method, a wing sheet that is cut along the cutting line (15) extending in a direction crossing the transport direction (F) and formed into a predetermined elongated shape is formed separately from the main body. The This wing sheet is fixed to a portion of the continuous laminate (11) to be the back sheet (3) or the back sheet. Thereby, for example, in the absorbent article, the wing protrudes from the main body.
The wing sheet is not limited to a specific shape. For example, when the wing sheet is a rectangle, there is no cut loss when forming the wing sheet. Also good.
The wing sheet may be fixed to the continuous laminated body or the back sheet in an unfolded posture, but may be folded in a dimension shorter than the width of the main body.

That is, preferably, in the another manufacturing method, the third continuous sheet (W7) continuously conveyed in the wing sheet conveying step (S11) is arranged along both side edges of the third continuous sheet (W7). A folding step (S12) of folding the third continuous sheet (W7) by folding at a virtual folding line (17);
In the cutting step (S13), the third continuous sheet (W7) with both side edges folded is cut along a cutting line extending in a direction intersecting the transport direction, so that the wing sheet (7) A wing sheet (7) in which each wing (6) portion is folded is formed.
The wing sheet in the folded posture is in a state in which the wings at both ends are extended (protruded) to the side of the main body by opening the folded portion during use.

When the wing sheet is fixed to the back sheet in the joining step, this fixing may be performed either before or after the main body portion forming step.
That is, the main body portion forming step may be executed after the wing sheet is arranged and overlapped on the continuous laminate and the joining step is executed. Or you may join a wing sheet to the back seat | sheet of the main-body part cut | disconnected from the continuous laminated body in the main-body part formation process. Alternatively, one of the wing sheet and the main body portion separated in the main body portion forming step is arranged and conveyed on a carrier sheet, and the other is overlapped thereon to execute the joining step. May be. In addition, the carrier sheet for conveying a wing sheet or a main-body part can also serve as the packaging sheet of an absorbent article with a wing.

In the main body forming step of the present invention, the continuous laminate may be cut so as to be cut out along the outer shape of the main body. Moreover, when the said continuous laminated body is cut | disconnected between adjacent absorbers, there will be no cut loss or a cut loss will be reduced significantly.
On the other hand, in the present invention, the shape of the main body may be rectangular in a plan view or may be trapezoidal. When the main body has a trapezoidal shape, in the joining step, the adjacent main body parts are set to have the same shape and the same size and rotated by 180 degrees to eliminate cut loss. it can.
In addition, when a pair of side edge of a main-body part is defined by a curve, the said cut loss can be eliminated if both side edges are mutually rotationally symmetrical shapes.

In this invention, the said absorber should just be a shape covered with the said top sheet and a back sheet, and can employ | adopt arbitrary shapes. For example, when the absorbent body has a shape that conforms to the outer shape of the main body, the top sheet and the back sheet can be easily covered and the amount of accommodation can be increased. However, the shape of the absorber may be different from the outer shape of the main body in consideration of wearability and the like.
In the present invention, “crossing” is preferably orthogonal. However, it is not limited to a specific angle, and is a concept including an intersection of an arbitrary angle of about 85 to 95 degrees near 90 degrees, for example.

FIG. 1A is a bottom view showing a partially broken absorbent article with a wing of the first embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line IB-IB in FIG. 1A. FIG. 2 is a schematic block diagram showing a first embodiment of the method of the present invention. FIG. 3 is a schematic configuration diagram showing a cutting process and the like of the method. FIG. 4 is a perspective view showing a part of the absorbent article with a wing according to the second embodiment of the present invention. FIG. 5 is a schematic block diagram showing a second embodiment of the method of the present invention. FIG. 6 is a schematic configuration diagram showing a third embodiment of the method of the present invention.

The invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings, in which: However, the examples and drawings 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.

Hereinafter, 1st Example of the absorbent article with a wing of this invention is described based on drawing.
As shown to FIG. 1A and FIG. 1B, this absorbent article (1) with a wing is an absorber (4) between a liquid-permeable top sheet (2) and a liquid-impermeable back sheet (3). Is provided with a main body (5) and a pair of wings (6). The pair of wings (6) protrude from the side edges (1S) of the main body (5) to the side (X). The absorbent article (1) has a line-symmetric structure with a center line (CL) extending in the longitudinal direction (L) of the absorbent article (1) as a target axis.
As shown in FIG. 1B, side edges (X) (width direction) of the top sheet (2) and the back sheet (3) are welded to each other and sealed in the main body (5). In addition, xx is attached | subjected to the site | part to which each sheet | seat adhered.
Each said wing (6) is formed from the wing sheet | seat (7) separate from the said main-body part (5). The wing sheet (7) is continuous from one wing (6) to the other wing (6) of each wing (6), and the non-skin surface of each wing (6) is a halftone dot. The adhesive layer (8) shown is formed.
The skin surface (70) of the wing sheet (7) is fixed to the non-skin surface (31) of the back sheet (3).
When the absorbent article (1) is used, the wings (6) of the absorbent article (1) arranged on the skin surface of the crotch part of underwear are connected to the outside (non-skin surface) of the crotch part. The absorbent article (1) is stably attached to a predetermined position of the undergarment by sticking the adhesive layer (8) in the folded part to the outside of the crotch part.

  The top sheet (2) may be liquid permeable, and preferably a perforated or non-porous nonwoven fabric or a porous plastic sheet is suitably used to cover the surface of the absorber (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 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.

  Although the said absorber (4) is formed with a fluff pulp, an airlaid nonwoven fabric, etc., the water absorbing high molecular polymer may be contained. Body fluids such as menstrual blood discharged from the wearer are absorbed by the absorbent body (4) through the top sheet (2).

When the absorbent article (1) is used, the wing sheet (7) adheres the folded part of the wing (6) to the outside of the crotch part of the underwear via the adhesive layer (8). As long as the material can be stably supported, and the material is not limited.
The absorber (4) is covered with the back sheet (3), and there is no risk of liquid leakage from the absorber (4), and the material forming the wing sheet (7) forms the back sheet (3). A material different from the material to be used can be used. For example, when a non-woven fabric made of a soft material is used for the wing sheet (7), the touch becomes good, and when a material excellent in air permeability is used, the function of preventing stuffiness is enhanced.
However, in the present invention, a liquid-impermeable material such as the back sheet (3) can be used for the wing sheet (7), and in this case, the liquid leakage from the absorber (4) can be further enhanced. right.

  A diffusion sheet (not shown) may be disposed between the top sheet (2) and the absorber (4). This diffusion sheet may be formed of, for example, a hydrophilic nonwoven fabric. Thereby, the bodily fluid which flowed in from the top sheet (2) side spreads on the surface of an absorber (4), and is rapidly absorbed by an absorber (4).

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

In the first embodiment, the main body (5) is formed in a trapezoidal shape in plan view, and one end in the longitudinal direction (L) is wider than the other end. The wide end portion is disposed on the back side of the body, and the narrow end portion is disposed on the front side of the body to be worn by the wearer.
The absorbent article with wing (1) can satisfactorily cover the wearer's buttocks side at the wide end side of the main body (5), and the intermediate part is not excessively wide and good A good fit will be obtained.
As shown to FIG. 1A, the said absorber (4) is formed in the substantially trapezoid shape along the external shape of a main-body part (5). This absorber (4) has a wide area, and body fluid is quickly absorbed and held in large amounts by this absorber (4). In the present invention, the shapes of the main body (5) and the absorber (4) are not necessarily trapezoidal or substantially trapezoidal, and may be rectangular or any other shape in plan view, for example.

In the first embodiment, each side edge on the side (X) of the wing sheet (7) is bent, for example, in a Z shape or an inverted Z shape, and the wing sheet (L) in the longitudinal direction (L) The wing sheet (7) is formed so that one side edge (74) of 7) is larger than the other side edge (73).
The width of the wing sheet (7) in the longitudinal direction (L) is approximately twice that of the wing (6). That is, the wing sheet (7) has a length (72) from the one side edge (74) to the center of the wing sheet (7) (the width in the longitudinal direction (L) of the wing (6)). And the length (71) from the other side edge (75) to the center of the wing sheet (7). For this reason, it is preferable that the wing sheet (7) can be firmly fixed to the back sheet (3).
In the present invention, the width of the wing sheet in the longitudinal direction (L) may have the same width as the predetermined width of the wing, and the wing cutting line is, for example, a straight line orthogonal to the wing sheet. It may be.
In the present embodiment, the wing sheet (7) is disposed at the center in the longitudinal direction (L) of the main body (5), but the wing sheet (7) is disposed in the longitudinal direction (L ) May be shifted to any one of the upper and lower sides.

Next, a first embodiment of the method for producing the absorbent article (1) will be described.
As shown in FIG. 2, the present embodiment includes a top sheet supply step (S1), an absorber supply step (S2), a back sheet supply step (S3), a lamination step (S4), and a main body portion formation step. (S5), a wing sheet supply step (S6), a joining step (S7), and a separation step (S8).

In the back sheet supply step (S3), a continuous web (an example of a second continuous sheet) (W3) forming the back sheet (3) is continuously supplied.
In the absorber supplying step (S2), a plurality of absorbers (4) are intermittently supplied by the intermittent supply device (9) onto the web of the continuous web (W3). In the main supply step (S2), the absorbers (4) adjacent to each other are in a state in which the succeeding absorber (4) has the same shape and size and is rotated by 180 ° with respect to the preceding absorber (4). Be placed.
In the top sheet supply step (S1), the continuous web (W2) (an example of the first continuous sheet) forming the top sheet (2) is continuously above the continuous web (W3) and the absorber (4). To be supplied.

Next, in the laminating step (S4), the continuous webs (W2, W3) are joined to each other by the joining device (10) with the absorber (4) sandwiched therebetween, so that the continuous laminated body (11 ) Is formed.
Thereafter, in the main body portion forming step (S5), the tip of the continuous laminate (11) is cut at a predetermined cutting line (13) between adjacent absorbers (4) by the cutting device (12). And the individual main body portions (5) are separated one after another.
The cutting line (13) is inclined with respect to the longitudinal direction (L) of the main body (5), and when the preceding main body (5) is separated, it is inclined in the first direction. When the main body part (5) is separated, the main body part (5) is inclined in a second direction opposite to the first direction.

In the wing sheet supply step (S6), a continuous web (W7) (an example of a third continuous sheet) forming the wing sheet (7) is continuously supplied.
Next, in the joining step (S7), the separated main body (5) is superposed on the continuous web (W7), and the back sheet (3) of the main body (5) is attached by the wing joining device (14). Is fixed to the continuous web (W7). At this time, the main body portion (5) has a posture in which the longitudinal direction (L) is orthogonal to the supply direction (F) of the continuous web (W7), and the main body portions (5) adjacent to each other have a predetermined interval. Separately, they are conveyed in a posture reversed by 180 degrees.
That is, on one side edge side of the continuous web (W7), the main body portion (5) is alternately repeated with a wide end portion of one main body portion (5) and a narrow end portion of another main body portion (5). 5) is arranged.

As shown in FIG. 2 and FIG. 3, between the adjacent main body portions (5) on one surface (B) of the continuous web (W7), in the width direction (W) of the continuous web (W7). An adhesive layer (8) protected with a release paper is formed along.
In the separation step (S8), the continuous web (W7) between the adjacent main body portions (5) passes along a wing cutting line (15) crossing the adhesive layer (8), and a wing sheet cutting device ( 18). Thereby, while the wing (6) provided with the adhesion layer (8) is formed in the both-sides edge part of a main-body part (5), the absorbent article (1) with a wing is divided individually.
In the separation step (S8), the absorbent article (1) is individually divided so that each wing sheet (7) has a convex shape. That is, the continuous web (W7) is cut so that the posture of the subsequent convex wing sheet (7) is rotated by 180 ° with respect to one preceding convex wing sheet (7). In other words, at the side edge of the continuous web (W7), the wide end (74) of the preceding wing sheet (7) and the narrow end (73) of the subsequent wing sheet (7) are alternately arranged. The continuous web (W7) is cut to repeat.

  When the continuous web (W7) is cut, the corners of the wing (6) are rounded in this embodiment, so that a slight cut loss occurs. However, in the present invention, it is possible to cut the continuous web (W7) so as not to cause a cut loss by omitting rounding of the corners of the wing (6).

  In addition, as shown in FIG. 3, a pair of three-dimensional cuffs (16) (also referred to as side sheets) are provided on the surface of the top sheet (2) (on the skin side of the wearer) along both sides. May be. The three-dimensional cuff (16) is formed of, for example, a water-repellent or hydrophobic nonwoven fabric and rises three-dimensionally to prevent side leakage of body fluid.

FIG. 4 shows a second embodiment of the absorbent article of the present invention.
The absorbent article (1) with a wing of this example is similar to the first example in that an absorbent body (4) is provided between a liquid-permeable top sheet (2) and a liquid-impermeable back sheet (3). ) And a series of wing sheets (7) fixed to the back sheet (3) separate from the main body (5). The wing sheet (7) The wings (6) are respectively formed at both end portions.

  In the present embodiment, both the wings (6) are in a folded posture (C) which is bent along a fold line (17). When the absorbent article (1) is used, the folded wing sheet (7) is unfolded so as to open around the fold line (17), so that the wings at both ends are shown as indicated by imaginary lines. (6) is a deployed posture (D) protruding to the side of the main body (5). Other configurations are the same as those of the first embodiment and operate in the same manner, so that the description thereof is omitted.

Next, a second embodiment of the method for producing the absorbent article (1) (method for producing the absorbent article (1) of the second embodiment) will be described.
As shown in FIG. 5, the second embodiment includes a top sheet supply step (S1), an absorber supply step (S2), a back sheet supply step (S3), a lamination step (S4), and a main body. A formation process (S5), a wing sheet supply process (S11), a bending process (S12), a cutting process (S13), and a joining process (S14) are provided.

The top sheet supplying step (S1), the absorber supplying step (S2), the back sheet supplying step (S3), the laminating step (S4), and the main body forming step (S5) are respectively the steps of the manufacturing method. It is configured in the same way as in the first embodiment and is executed in the same way. However, unlike the first embodiment of the manufacturing method, in the absorbent body supplying step (S2), a plurality of the absorbent bodies (4) are intermittently formed on the continuous web (W2) forming the top sheet (2). Supplied.
Thereafter, in the backsheet supply step (S3), the continuous web (W3) (an example of the second continuous sheet) forming the backsheet (3) is the continuous web (W2) and the absorbent body (4) forming the topsheet. ) Continuously.

Unlike the first embodiment of the manufacturing method, the continuous web (W3) (an example of the third continuous sheet) forming the wing sheet (7) supplied in the wing sheet supply step (S11) is the folding step. In (S12), the folding device (21) is folded (folded) along folding lines (17) along both side edges of the continuous web (W7) web.
That is, both side edges of the continuous web (W7) are bent toward the center of the wing sheet (7) in a direction crossing the transport direction (F). In addition, an adhesive layer (8) indicated by halftone dots protected by release paper is formed on both sides of the continuous web (W7) on the outside of the fold line (17).
The bent continuous web (W7) is cut along the wing cutting line (15) extending in the direction intersecting the conveying direction (F) by the wing sheet cutting device (18) in the cutting step (S13). Thus, an elongated wing sheet (7) having a wing (6) in a folded posture (C) is formed.

Next, in the joining step (S14), the wing sheet (7) is in a state where the longitudinal direction (X) of the wing sheet (7) intersects the longitudinal direction (L) of the main body (5), It is fixed on the continuous web (W3) forming the back sheet (3) by the wing joining device (14). That is, after the wing sheet (7) is cut in the cutting step (S13), the wing sheet (7) is disposed on the continuous web (W3) by changing its posture by 90 degrees. The said wing sheet (7) is arrange | positioned in the center of the longitudinal direction (L) of the said absorber (4).
In the main body portion forming step (S5), the continuous laminate (11) is cut obliquely with respect to the main body portion (5) between the adjacent absorbent bodies (4) and between the adjacent wing sheets (7). By doing so, the absorbent articles (1) with wings in which the wing sheets (7) are fixed to the main body (5) are successively separated.
In addition, in a present Example, you may arrange | position the said wing sheet (7) to each said main-body part (5) formed by the main-body part formation process (S5).
The other steps of the manufacturing method of the second embodiment are the same as those of the first embodiment of the manufacturing method, and will not be described because they are performed in the same manner.

Hereinafter, a third embodiment of the manufacturing method of the present invention will be described with reference to FIG.
The third embodiment is similar to the second embodiment in that the top sheet supplying step (S1), the absorber supplying step (S2), the back sheet supplying step (S3), the laminating step (S4), and the main body It includes a part forming step (S5), and further includes a wing sheet supplying step (S11), a bending step (S12), a cutting step (S13), and a joining step (S14).
In the second embodiment of the manufacturing method, the wing sheet (7) was directly fixed to the continuous web (W3) of the continuous laminate (11). However, in the third embodiment, the wing sheet (7) separated from the continuous web (W7) is arranged on the carrier sheet, and the main body portion separated from the continuous laminate with respect to the wing sheet (7) is provided. The backsheet may be fixed.

  In the third embodiment, the top sheet supply step (S1), the absorber supply step (S2), the back sheet supply step (S3), the lamination step (S4), and the main body portion formation step (S5) Each is carried out in the same manner as in the first embodiment of the manufacturing method. The wing sheet supply step (S11), the folding step (S12), and the cutting step (S13) in the third embodiment are each performed in the same manner as in the second embodiment of the manufacturing method.

In the third embodiment, unlike the second embodiment, the wing sheet (7) formed in the cutting step (S13) is disposed at a predetermined interval on the wing carrier sheet (20), and intermittently. Be transported.
Specifically, the carrier sheet for wings in a state where the posture of the wing sheet (7) cut from the continuous web (W7) in the cutting step (S13) is rotated 90 degrees and the front and back sides are reversed. 20) The wing sheet (7) is intermittently arranged on the top. That is, the wing sheet (7) is disposed in a state where the end of the folded wing (6) faces the wing carrier sheet (20).
In the joining step (S14), the main body portions (5) separated in the main body portion forming step (S5) are superimposed on the wing sheets (7) on the wing carrier sheet (20). The said wing sheet (7) is fixed to the back seat | sheet (3) of a main-body part (5) with a wing joining apparatus (14), and the absorbent article (1) with a wing is produced | generated.

  In addition, the said carrier sheet for wings (20) can be used as a packaging sheet of the absorbent article (1) with wings. In this case, after passing through the joining step (S14), in the packaging step (not shown), both side edges of the wing carrier sheet (20) are folded to wrap the absorbent article (1) with wing, and the absorbent with wing. The periphery of the article (1) is sealed and then cut, and the packaged absorbent article (1) with wings is separated.

In the said 3rd Example, after arrange | positioning a wing sheet | seat (7) on a carrier sheet | seat (20), the main-body part (5) was arrange | positioned on the wing sheet | seat (7) and the carrier sheet | seat (20) for wings. However, in the present embodiment, after the separated main body (5) is arranged on the carrier sheet (20), the wing sheet (7) is overlaid and fixed on the main body (5). Good. In this case, the wing sheet (7) cut in the cutting step (S13) is not reversed, and the wing sheet (7) is superimposed on the back sheet of the main body (5) as in the second embodiment. .
In the third embodiment, the wing sheet is arranged and conveyed on the carrier sheet in a folded posture. However, in the present invention, the wing sheet in an unfolded posture may be arranged and conveyed on the carrier sheet, and the main body may be overlaid on the wing sheet and fixed to the back sheet.

  The absorbent article with wings 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, materials, manufacturing procedures, etc. of each member The present invention is not limited to the embodiments, and various changes and modifications can be made within the scope of the claims of the present invention.

For example, in each of the above embodiments, the main body is formed in a trapezoidal shape, and the absorber is formed in a substantially trapezoidal shape. However, in the present invention, the main body may be formed in another shape such as a rectangle, and the absorber may be formed in a shape different from that of the main body.
In the absorbent body supplying step, the absorbent body is intermittently disposed on the continuous web forming the back sheet in the first embodiment and the third embodiment, and the continuous web forming the top sheet in the second embodiment. The absorber was placed intermittently. However, in the present invention, the absorber may be intermittently disposed and supplied on a carrier sheet (not shown).
Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.

  The absorbent article of the present invention is suitable for sanitary napkins, incontinence urine pads and the like because it can be produced efficiently with little waste of materials and the wing material and formation position can be arbitrarily set.

1: Absorbent article with wings 2: Top sheet 3: Back sheet 4: Absorber 5: Main body part 6: Wing 7: Wing sheet 8: Adhesive layer 9: Intermittent supply device 10: Joining device 11: Continuous laminate 12: Cutting device 13: Cutting line 14: Wing joining device 15: Wing cutting line 16: Solid cuff 17: Folding line 18: Wing sheet cutting device 20: Wing carrier sheet (packaging sheet) 21: Folding device C: Folding Posture D: Extension posture F: Transport direction of the third continuous sheet L: Longitudinal direction of the main body (5) S1: Topsheet supply step S2: Absorber supply step S3: Backsheet supply step S4: Lamination step S5: Main portion Formation process S6: Wing sheet conveyance process S7: Joining process S8: Separation process S11: Wing sheet supply process S12: Bending process S13 Cutting step S14: bonding step

Claims (5)

A method for continuously producing a plurality of absorbent articles with wings comprising a main body (5) and wings (6) ,
The absorbent article with wings is
A main body (5) in which an absorbent body (4) is disposed between a liquid-permeable top sheet (2) and a liquid-impermeable back sheet (3), and a longitudinal direction of the main body (5) ( A pair of wings (6) projecting from a pair of side edges (1S) extending in L) toward a side (X) intersecting the longitudinal direction (L),
The pair of wings (6) is formed by a wing sheet (7) continuous from one wing (6) to the other wing (6) of the pair of wings (6),
The wing sheet (7) is composed of a sheet different from the back sheet (3),
The skin surface (70) of the wing sheet (7) is fixed to the non-skin surface (31) of the back sheet (3),
The manufacturing method includes:
A top sheet supply step (S1) for continuously supplying the first continuous sheet (W2) forming the top sheet (2);
An absorbent body supplying step (S2) for intermittently supplying individual absorbent bodies (4) in the plurality of absorbent articles;
A backsheet supply step (S3) for continuously supplying the second continuous sheet (W3) forming the backsheet (3);
In a 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 (11). A stacking step (S4) to be formed;
A main body part forming step (S5) for successively cutting the tip of the continuous laminate (11) to obtain the main body part (5) one after another;
A wing sheet supply step (S6) for continuously supplying a third continuous sheet (W7) forming the wing sheet (7);
The main body part (5) obtained in the main body part forming step (S5) is adjacent to each other with the longitudinal direction (L) intersecting the conveyance direction (F) of the third continuous sheet (W7). In a state where the main bodies (5) that fit each other are spaced apart from each other in the transport direction (F), the main bodies (5) are arranged on the third continuous sheet (W7) and placed on the third continuous sheet (W7). 5) a joining step (S7) for fixing the back sheet (3);
The manufacturing method including a separation step (S8) in which the third continuous sheet (W7) is cut between the adjacent main body portions (5) to obtain the absorbent article one after another . Cutting between the absorber (4) adjacent said continuous laminate (11) to each other in the body formation step (S5), The method according to claim 1. On one surface of the third continuous sheet (W7), a plurality of adhesive layers (8) extending along the longitudinal direction (L) between the adjacent main body portions (5) are provided in advance in the transport direction (F). A virtual wing cutting line (15) extending intermittently in the separation step (S8) and extending in the direction intersecting the transport direction (F) through one of the plurality of adhesive layers (8). by wing sheet (7) is cut one after the other along the allocated divided into both of the one wing sheet adhesive layer (8) are adjacent to each other (7), according to claim 1 or claim 2 The manufacturing method as described in. A method for continuously producing a plurality of absorbent articles with wings comprising a main body (5) and wings (6),
The absorbent article with wings is
A main body (5) in which an absorbent body (4) is disposed between a liquid-permeable top sheet (2) and a liquid-impermeable back sheet (3), and a longitudinal direction of the main body (5) ( A pair of wings (6) projecting from a pair of side edges (1S) extending in L) toward a side (X) intersecting the longitudinal direction (L),
The pair of wings (6) is formed by a wing sheet (7) continuous from one wing (6) to the other wing (6) of the pair of wings (6),
The wing sheet (7) is composed of a sheet different from the back sheet (3),
The skin surface (70) of the wing sheet (7) is fixed to the non-skin surface (31) of the back sheet (3),
The manufacturing method includes:
A top sheet supply step (S1) for continuously supplying the first continuous sheet (W2) forming the top sheet (2);
An absorbent body supplying step (S2) for intermittently supplying individual absorbent bodies (4) in the plurality of absorbent articles;
A backsheet supply step (S3) for continuously supplying the second continuous sheet (W3) forming the backsheet (3);
In a 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 (11). A stacking step (S4) to be formed;
A main body part forming step (S5) for successively cutting the tip of the continuous laminate (11) to obtain the main body part (5) one after another;
A wing sheet conveying step (S11) for continuously conveying the third continuous sheet (W7) forming the wing sheet (7);
A cutting step (S13) in which the third continuous sheet (W7) is cut along a virtual cutting line (15) extending in a direction crossing the transport direction (F) to successively form the wing sheets (7). When,
In a state where the longitudinal direction (X) of each wing sheet (7) intersects the longitudinal direction (L) of each main body (5), each wing sheet (7) is made of the continuous laminate (11). A part to be the back sheet (3), or a joining step (S14) for fixing the back sheet (3);
Bending the third continuous sheet (W7) continuously conveyed in the wing sheet conveying step (S11) at virtual fold lines (17) along both side edges of the third continuous sheet (W7). Folding the third continuous sheet (W7) (S12) ,
The manufacturing method in which each wing sheet (7) by which the wing (6) part of the longitudinal direction (X) of the said wing sheet (7) was folded in the said cutting process (S13) is formed . By arranging the each wing sheet (7) on said continuous laminate (11), after performing the bonding step (S14), executing the main body portion forming step (S5), according to claim 4 Manufacturing method.

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