JP2022039688A - Individually packaged absorbent article and manufacturing method of individually packaged absorbent article - Google Patents

Abstract

To provide an individually packaged absorbent article having seal parts with an excellent sealing performance in the individually packaged absorbent article configured to individually package an absorbent article including an adhesive layer for preventing slippage, with a packaging sheet having peeling function parts in an inner surface.SOLUTION: An individually packaged absorbent article includes an absorbent article and an elongate packaging sheet for individually packaging the absorbent article. The absorbent article is disposed on an inner surface side of the packaging sheet, a first turnback part including one end in a longitudinal direction of the packaging sheet and a second turnback part including the other end in the longitudinal direction are folded in order in the longitudinal direction along with the absorbent article, and edges in a short-side direction of the packaging sheet are sealed across the longitudinal direction. Peeling function parts continued from the one end to the other end in the short-side direction of the packaging sheet are partially formed in the longitudinal direction of the inner surface of the packaging sheet, and adhesive layers are formed between the packaging sheet and a non-skin surface of the absorbent article within a range coming into contact with the peeling function parts and coming into contact with a body of the absorbent article, where the feeling function parts do not face each other at the edge parts.SELECTED DRAWING: Figure 6

Description

The present invention relates to an individual package absorbent article and a method for manufacturing an individual package absorbent article.

Absorbent articles such as menstrual napkins, panty liners, and incontinence pads are generally on the non-skin side (opposite the side facing the skin) to prevent the absorbent article from slipping out of the underwear during wearing. ) Has an adhesive layer. In many cases, a release paper for covering the pressure-sensitive adhesive layer is provided in order to protect such a pressure-sensitive adhesive layer. Further, in recent years, it is also known that the inner surface of a packaging material (wrapping sheet) for individually packaging absorbent articles is subjected to a treatment (peeling treatment) for imparting a peeling function without using a release paper (peeling treatment). For example, Patent Document 1).

Japanese Unexamined Patent Publication No. 8-324635

In the configuration described in Patent Document 1, the entire inner surface of the packaging sheet is peeled off. In such a case, when the packaging sheet is folded together with the absorbent article to wrap the absorbent article and then both edges of the packaging sheet are sealed, it may be difficult to seal the packaging sheet under normal conditions. For example, in the case of heat sealing, it is necessary to adjust the temperature, pressure, and sealing pattern at the time of sealing, but the strength of the sealing part becomes excessively strong, the packaging sheet is torn at the time of opening, and the adjustment of the sealing equipment becomes complicated. Sometimes. Therefore, in the case of an individually packaged absorbent article in which an absorbent article provided with an adhesive layer for preventing slippage is individually packaged without using a release paper, a sealing portion having excellent sealing property and easy to open can be provided without a complicated manufacturing process. Is required to form.

In view of the above, one aspect of the present invention is an individually packaged absorbent article in which an absorbent article provided with an adhesive layer for preventing slippage is individually packaged with a packaging sheet having a peeling function portion on the inner surface, and has a sealing property. It is an object of the present invention to provide a product having an excellent sealing portion.

The first aspect of the present invention is an individually packaged absorbent article having an absorbent article and an elongated packaging sheet for individually packaging the absorbent article, and the absorbent article is on the inner surface side of the packaging sheet. The article is arranged, and the first folded portion including one end in the longitudinal direction of the packaging sheet and the second folded portion including the other end in the longitudinal direction are sequentially folded together with the absorbent article in the longitudinal direction to form the package. The edge portion in the lateral direction of the sheet is sealed over the longitudinal direction, and a peeling function portion continuous from one end to the other end in the lateral direction of the packaging sheet is provided on the inner surface of the packaging sheet in the longitudinal direction. It is partially formed so that the pressure-sensitive adhesive layer is in contact with the peeling function portion and the main body of the absorbent article between the packaging sheet and the non-skin surface of the absorbent article. It is formed so that the peeling function portions do not face each other at the edge portion.

In the first aspect, a peeling function portion continuous from one end to the other end in the lateral direction of the packaging sheet is partially formed on the inner surface of the packaging sheet. Therefore, when the packaging sheet is obtained by cutting from a long original packaging sheet, the peeling function portion is continuously formed along the lateral direction of the packaging sheet (transportation direction of the original packaging sheet) in the original packaging sheet. Can be formed. Therefore, complicated adjustment of the position and range of forming the peeling function portion becomes unnecessary.

Further, according to this aspect, the first folded portion including one end in the longitudinal direction of the packaging sheet and the second folded portion including the other end in the longitudinal direction are sequentially folded together with the absorbent article in the longitudinal direction. The peeling function portion is formed so that the peeling function portions do not face each other at the edge portion. Therefore, it is not necessary to set complicated conditions when sealing the edge portion, and it is possible to form a sealing portion having excellent sealing performance.

In the second aspect of the present invention, the peeling function portion is formed at least on the inner surface of the portion of the second folded portion that overlaps with the first folded portion.

According to the second aspect, the peeling function portion formed on the inner surface of the second folded portion contacts the outer surface of the first folded portion at the overlapping portion between the second folded portion and the first folded portion. become. Therefore, it is possible to easily obtain a state in which the peeling function portions do not face each other. Therefore, with a simple structure, it is possible to improve the sealing property of the sealing portion at the edge portion while securing the peeling function portion that can protect the pressure-sensitive adhesive layer.

Further, the second folded portion of the packaging sheet corresponds to a region (front or rear) close to the longitudinal end portion of the absorbent article. Therefore, if the peeling function portion is formed on the inner surface of the second folded portion, the pressure-sensitive adhesive layer can be formed in front of or behind the absorbent article, which is relatively easy to shift, and the slip-preventing action can be exerted. Even in the agent layer, the absorbent article can be effectively fixed to the underwear.

In the third aspect of the present invention, the peeling function portion is further formed on the inner surface of the first folded portion.

According to the third aspect, since the peeling function portion is further formed on the inner surface of the first folded portion, in the absorbent article, the range corresponding to the second folded portion and the first folded portion are covered. The pressure-sensitive adhesive layer can be formed in both the range corresponding to the above. Thereby, the pressure-sensitive adhesive layer of the absorbent article can be formed at two or more places, and the slip-preventing action of the absorbent article by the pressure-sensitive adhesive layer can be improved.

In the fourth aspect of the present invention, a thin region in which two packaging sheets are stacked and a thick region in which three or more packaging sheets are stacked are formed in the edge portion, and the thin region is formed. Does not include the peeling function portion.

The sealing strength of the edge portion becomes weaker as the number of stacked packaging sheets decreases. Therefore, if the number of stacked packaging sheets differs at the edge of the individually packaged absorbent article, the sealing strength of the edge portion depends on the location of the edge portion. May be different. On the other hand, according to the fourth aspect, the sealing strength in the thin region is improved by preventing the peeling function portion from being included in the thin region where two packaging sheets are stacked at the edge portion. be able to.

In a fifth aspect of the present invention, the absorbent article comprises a pair of wings, a wing pressure-sensitive adhesive layer is formed on the non-skin surface of each wing, and the wing pressure-sensitive adhesive layer is formed. The pressure-sensitive adhesive layer is not formed in the range in the longitudinal direction.

According to the fifth aspect, since the pair of wings is provided, the absorbent article can be more stably fixed to the underwear when the absorbent article is attached, and especially for the wing provided in the wing. The absorbent article is less likely to shift in the longitudinal range of the pressure-sensitive adhesive layer. Therefore, in this embodiment in which the pressure-sensitive adhesive layer (the pressure-sensitive adhesive layer for the main body) is not formed in the range in the longitudinal direction in which the pressure-sensitive adhesive layer for wings is formed, the above-mentioned is ensured that the absorbent article is not easily displaced. The range in which the adhesive layer (adhesive layer for the main body) is provided can be reduced, and the manufacturing cost can be reduced.

Further, the position where the wing is formed in the absorbent article is the longitudinal intermediate portion of the absorbent article, and the intermediate portion of the absorbent article may correspond to the longitudinal intermediate portion of the packaging sheet. Therefore, by omitting the formation of the adhesive layer for the main body in the longitudinal direction in which the adhesive layer for wings is formed, the peeling function portion in the middle portion of the packaging sheet is wide as a whole or in the longitudinal direction. It can be omitted in the range. In that case, in the portion where the intermediate portion of the packaging sheet and the first folded portion face each other at the edge portion, the peeling function portion can be provided in a wide range not on the side of the intermediate portion but on the side of the first folded portion. If the peeling function portion can be provided on the inner surface of the first folded portion in a wide range, the adhesive layer can be widely formed in the vicinity of the end portion in the longitudinal direction in the absorbent article, and the slip prevention action in the absorbent article can be further enhanced. can.

In the sixth aspect of the present invention, the first folding portion comprises a main portion of the first folding portion and a sub portion of the first folding portion arranged adjacent to the outside of the main portion of the first folding portion in the longitudinal direction. The first folded portion sub portion is folded toward the inner surface side in the longitudinal direction before the folding of the second folded portion.

According to the sixth aspect, the packaging sheet can be folded in four or more, and a long absorbent article can be compactly packaged.

In a seventh aspect of the invention, the absorbent article comprises a hip hold flap extending bilaterally from the body of the absorbent article behind the absorbent article, and the non-skin of each hip hold flap. A hip hold flap pressure-sensitive adhesive layer is formed on the surface, and the pressure-sensitive adhesive layer is not formed in the longitudinal range where the hip hold flap pressure-sensitive adhesive layer is formed.

According to the seventh aspect, by providing the hip hold flaps extending from the main body of the absorbent article to both sides, it is possible to prevent the absorbent article from being displaced rearward. In particular, in the range in the longitudinal direction of the adhesive layer for the hip hold flap provided on the hip hold flap, the absorbent article is less likely to shift. Therefore, in this embodiment in which the pressure-sensitive adhesive layer (the pressure-sensitive adhesive layer for the main body) is not formed in the range in the longitudinal direction in which the pressure-sensitive adhesive layer for the hip hold flap is formed, it is possible to secure the resistance to the displacement of the absorbent article. , The range in which the above-mentioned adhesive layer (adhesive layer for the main body) is provided can be reduced or eliminated, and the manufacturing cost can be reduced.

Further, the position where the pressure-sensitive adhesive layer of the hip hold flap is formed in the absorbent article may correspond to the main portion of the first folded portion of the packaging sheet. Therefore, if the formation of the pressure-sensitive adhesive layer is omitted in the longitudinal direction in which the pressure-sensitive adhesive layer for the hip hold flap is formed, the peeling function portion in the main portion of the first folded portion of the packaging sheet is entirely or longitudinally. It can be omitted in a wide range of directions. In that case, in the portion where the main portion of the first folded portion and the first folded sub portion of the packaging sheet face each other at the edge portion, the first folded portion closer to the longitudinal end portion than the side of the first folded portion main portion. A peeling function portion can be formed in a wide range on the side of the sub portion. If the peeling function portion can be formed in a wide range on the inner surface of the first folded portion sub portion closer to the longitudinal end portion, the pressure-sensitive adhesive layer can be provided in the vicinity of the longitudinal end portion that is easily displaced in the absorbent article, depending on the pressure-sensitive adhesive layer. It is possible to enhance the slip-preventing action of the absorbent article.

In the eighth aspect of the present invention, a peeling function portion continuous along the transport direction of the original packaging sheet is formed on the inner surface of the long original packaging sheet to be the packaging sheet in a direction orthogonal to the transport direction. A pressure-sensitive adhesive layer is formed within the range of the peeling function portion and within the planned arrangement range of the main body of the absorbent article, and the plurality of absorbent articles are separated from each other to form the absorbent article. The non-skin surface of the article is arranged so as to be in contact with the pressure-sensitive adhesive layer, and the absorbency is sequentially placed on one end side of the original packaging sheet in the orthogonal direction orthogonal to the transport direction and the other end side in the orthogonal direction. It includes folding in the orthogonal direction together with the article and sealing the portion between the absorbent articles which becomes the edge portion of the absorbent article over the orthogonal direction, and the peeling function portions do not face each other at the edge portion.

According to the eighth aspect, it is possible to provide a method for producing an individually packaged absorbent article having the same effect as the effect described in the first aspect.

According to one aspect of the present invention, in an individually packaged absorbent article in which an absorbent article provided with an adhesive layer for preventing slippage is individually packaged with a packaging sheet having a peeling function portion on the inner surface, a seal having excellent sealing property is provided. We can provide something with a part.

It is a top view of the individual package absorbable article by one embodiment of this invention. FIG. 1 is a cross-sectional view taken along the line II of FIG. It is a top view of the absorbent article seen from the non-skin surface. It is a top view of the state in which the packaging sheet in FIG. 1 is unfolded (the state before folding), and the state in which the absorbent article is placed on the unfolded packaging sheet. FIG. 2 is a sectional view taken along line II-II of FIG. It is a top view of the state where the packaging sheet is unfolded (the state before folding) according to the modification, and the state where the absorbent article is placed on the unfolded packaging sheet. FIG. 6 is a cross-sectional view of the individually packaged absorbent article of FIG. 6 (in the folded state) cut along the longitudinal direction of the edge. It is a figure which shows the state which the packaging sheet of the individually packaged absorbent article of a quadruple structure is unfolded, and the state which the absorbent article is placed on the unfolded packaging sheet. FIG. 8 is a cross-sectional view taken along the longitudinal direction of the edge of the individually packaged absorbent article of FIG. It is a top view of the state in which the packaging sheet of the individually packaged absorbent article by the modification of the four-fold structure is unfolded, and the state in which the absorbent article is placed on the unfolded packaging sheet. FIG. 10 is a view showing a cross section cut along the longitudinal direction of the edge portion of the individually packaged absorbent article of FIG. It is a figure explaining the manufacturing method of the individual packaging absorbent article.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, unless otherwise specified, the same or corresponding configurations may be designated by the same reference numerals and description thereof may be omitted. If the same or corresponding configurations have similar effects, the description may be omitted. In addition, the drawings are schematic to help the understanding of the invention.

FIG. 1 shows a plan view of the individually packaged absorbent article 100 according to one embodiment of the present invention. Further, FIG. 2 shows a sectional view taken along line II of FIG. As shown in FIGS. 1 and 2, the individually packaged absorbent article 100 includes an absorbent article 1 and a packaging sheet 10 for packaging the absorbent article 1. Further, FIG. 3 is a view of the absorbent article 1 as viewed from a non-skin surface (a surface opposite to the surface facing the skin when worn, or a surface facing the underwear). Further, FIG. 4A shows a plan view of the unfolded state of the packaging sheet 10 or the state before folding the packaging sheet 10 as viewed from the inner surface of the packaging sheet, and FIG. 4B shows FIG. 4A. A plan view showing a state in which the absorbent article 1 is arranged on the packaging sheet 10 shown in the above is shown.

(Absorbable article)
Specifically, the absorbent article 1 packaged by the packaging structure of the present embodiment may be a menstrual napkin, a panty liner (pantyliner), a pad for light incontinence, or the like. The absorbent article 1 may be flat as a whole and may have an elongated shape in a plan view. The total length of the absorbent article 1 can be 140 to 420 mm, and the width of the main body of the absorbent article 1 (the part excluding the wings and flaps extending from the side portion) can be 50 to 130 mm. The width of the absorbent article 1 including the above can be 50 to 200 mm. The absorbent article 1 may have a structure in which a liquid-impermeable back sheet 2, an absorber 4, and a liquid-permeable top sheet are laminated in this order.

As the back sheet 2, a sheet material having at least water impermeability, such as an olefin resin sheet such as polyethylene or polypropylene, can be used. It is possible to use a laminated non-woven fabric in which a non-woven fabric is laminated on a polyethylene sheet or the like, or a laminated non-woven fabric sheet in which a waterproof film is interposed to ensure substantially impermeable liquid permeability. Further, those having moisture permeability may be used. As the top sheet, a perforated or non-perforated non-woven fabric, a porous plastic sheet, or the like is preferably used. As the material fibers constituting the non-woven fabric, for example, olefins such as polyethylene and polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, blended fibers thereof, and natural fibers such as cotton are used alone or. Two or more types can be used in combination.

The material of the absorber 4 (FIG. 3) is not limited as long as it can absorb and retain the body fluid, but preferably contains cotton-like pulp and a water-absorbent polymer. As the water-absorbent polymer, a superabsorbent polymer granular powder (SUPerabsorbent polymer (SAP)), a superabsorbent polymer fiber (SAF), and a combination thereof can be used. Examples of the pulp include chemical pulp obtained from wood, cellulose fibers such as dissolving pulp, and artificial cellulose fibers such as rayon and acetate.

The thickness of the absorber 4 can be in the range of 0.5 to 25 mm, preferably in the range of 1.5 to 15 mm. The absorber may have a bulging structure in a region corresponding to the body fluid discharge port (a region corresponding to the body fluid discharge port) or a region behind the body fluid discharge port corresponding region and facing the groove of the buttocks.

The absorber 4 has a size and shape that does not protrude from the back sheet 2 at least (FIG. 3), and at the front and rear edge portions of the absorber, the outer edges of the back sheet 2 and the top sheet are hot melt or the like. It is joined by a sealing means such as an adhesive, a heat seal, or an ultrasonic seal. Further, on the lateral outer side of the absorber, side nonwoven fabrics may be provided along the longitudinal direction at both ends in the width direction. As the side non-woven fabric, a water-repellent treated non-woven fabric or a hydrophilic treated non-woven fabric can be used.

As shown in FIG. 3, on the non-skin surface of the absorbent article 1, that is, on the exposed surface of the back sheet 2, an adhesive layer 9 for preventing the absorbent article 1 from being displaced from the underwear is formed. good. The pressure-sensitive adhesive layer 9 is provided on the main body of the absorbent article 1, that is, a portion excluding the wing and the hip hold flap (described later), and such a pressure-sensitive adhesive layer 9 is also referred to as a main body pressure-sensitive adhesive layer.

The pressure-sensitive adhesive used for the pressure-sensitive adhesive layer 9 is preferably a hot-melt type pressure-sensitive adhesive, and as its main component, a styrene-based polymer, a pressure-sensitive adhesive, a plasticizer, and a combination thereof can be used. Examples of the styrene polymer include styrene-ethylene-butylene-styrene block copolymer, styrene-butylene-styrene block copolymer, styrene-isobutylene-styrene copolymer, styrene-butadiene-styrene block copolymer and the like. , One or more of these can be used. Examples of the tackifier include C5 petroleum resin, C9 petroleum resin, dicyclopentadiene petroleum resin, rosin petroleum resin, polyterpene resin, terpene phenol resin and the like. Examples of the plasticizer include monomer plasticizers such as triflesyl phosphate, dibutyl phthalate, and dioctyl phthalate, as well as polymer plasticizers such as vinyl polymers and polyesters.

Further, as shown in FIG. 3, the absorbent article 1 extends to both sides in the middle portion in the longitudinal direction of the absorbent article 1, that is, a portion including a region facing the body fluid discharge port of the wearer at the time of wearing. , A pair of wings W, W may be provided. The wing W and W may be formed by overlapping the laterally extending portion of the side nonwoven fabric and the laterally extending portion of the back sheet 2 and joining them by a heat seal or the like. Wings W and W may each have a wing adhesive layer formed on the non-skin surface side (back sheet 2 side). The wings W and W have a function of stably fixing the absorbent article 1 to the underwear by folding it back to the outside of the underwear when it is attached, and further preventing the displacement. As the wing pressure-sensitive adhesive layer, the same pressure-sensitive adhesive as that used in the main body pressure-sensitive adhesive layer can be used. The absorbent article 1 may be configured to have no wings W or W.

(Packaging sheet)
The packaging sheet 10 may have an elongated plan view shape having a longitudinal direction D1 and a lateral direction D2 orthogonal to the longitudinal direction D1 as a whole. In the present specification, the longitudinal direction in the unfolded state of the packaging sheet 10 is referred to as the first direction D1, and the lateral direction is referred to as the second direction D2. In the form shown in FIG. 3, the shape of the packaging sheet 10 in a plan view is substantially rectangular as a whole, but may have other shapes such as a substantially oblong shape.

The dimensions of the packaging sheet 10 depend on the size and shape of the absorbent article to be packaged, but for example, the length of the first direction (longitudinal direction) D1 (sometimes simply referred to as length) with the packaging sheet 10 unfolded. Can be 100 to 450 mm, and the length (sometimes referred to simply as the width) of the second direction (short direction) D2 can be 70 to 250 mm.

The material constituting the packaging sheet 10 is not particularly limited, but may be a resin film, a non-woven fabric, paper, or the like.

When a resin fill is used for the packaging sheet 10, examples of the resin used include polyolefins such as polypropylene and polyethylene, polyester, polyvinyl alcohol, and the like. As the resin film, a stretched film is preferable. Further, the resin film may be a non-breathable film or a breathable film. When a resin film is used, the outline of printing becomes clear and the color development of the colorant becomes good, so that the design of the packaging sheet can be improved.

When paper is used for the packaging sheet 10, it is preferable in that the environmental burden at the time of disposal is small and a unique texture, for example, the appearance and texture of a gentle impression of a natural material can be imparted. In addition, in this specification, the paper can refer to the thing which flattened by sticking a plant fiber or other fiber with a sticking agent. In particular, it can refer to those using plant fiber (pulp) as a main raw material, for example, those containing 50% or more of plant fiber, preferably 80% or more of the contained fibers. The type of pulp contained in the paper may include wood pulp, non-wood pulp, and used paper pulp, and these may be mechanical pulp or chemical pulp. Additives may be added to the paper. Further, as an example of the specific paper used for the wrapping sheet 10, various types of paper such as Western paper, Japanese paper, processed paper, and synthetic paper can be mentioned. In addition, papers conventionally used for other purposes, such as newspapers, printing papers (including high-quality papers), writing papers, drawing papers, wrapping papers, thin leaf papers, mixed papers, etc., are unprocessed or processed. Can also be used.

When a non-woven fabric is used for the packaging sheet 10, the texture, softness, and the like can be improved, which is preferable. The non-woven fabric used is preferably a melt-blown non-woven fabric, a spunbonded non-woven fabric, or the like, and a plurality of layers of these non-woven fabrics can be combined and laminated. The raw material of the fiber constituting the non-woven fabric may be polyolefin such as polypropylene or polyethylene, polyamide such as polyester or nylon, or the like.

As the wrapping sheet 10, one wrapping sheet 10 may be a single-layer sheet made of the above-mentioned material, or one wrapping sheet 10 is formed by laminating a plurality of layers made of different materials. It may be a laminated sheet. Therefore, for example, it may be configured by laminating a resin film on the above-mentioned paper sheet.

(Packaging structure for individually packaged absorbent articles)
As shown in FIGS. 1 to 4, the individually packaged absorbent article 100 may be one in which one absorbent article 1 is packaged by one packaging sheet 10. In the individually packaged absorbent article 100, the absorbent article 1 is arranged on the inner surface of the expanded packaging sheet 10 so that the longitudinal direction of the absorbent article 1 is along the longitudinal direction D1 of the packaging sheet 10, and both are arranged. By folding in the longitudinal direction D1, the absorbent article 1 can be wrapped. The inner surface of the packaging sheet 10 is the surface on which the absorbent article 1 is arranged, and the outer surface of the packaging sheet is the surface opposite to the inner surface, that is, the surface exposed in the individually packaged absorbent article 100.

In the examples shown in FIGS. 1, 2, and 4, the packaging sheet 10 is folded by an inner tri-fold (rolling tri-fold). More specifically, the packaging sheet 10 includes a first folded portion F1 including one end 11 of the longitudinal direction D1 of the packaging sheet 10 and a second folded portion F2 including the other end 12 of the longitudinal direction D1 in this order. Together with the absorbent article 1, the second folded portion F2 is folded so as to overlap the outer surface of the first folded portion F1. The first folded portion F1 is folded at the folding line L1, and the second folded portion F2 is folded at the folding line L2. Such a packaging method for wrapping the absorbent article 1 by folding back the two folded portions on the end side is simple, and the absorbent article can be reliably enclosed and protected without being exposed to the external environment. preferable. In this embodiment, the region between the first folded portion F1 and the second folded portion F2 is referred to as an intermediate portion M (FIGS. 3 and 4).

When the first folded portion F1 is folded back along the first folded line L1, the length of the first folded portion F1 in the longitudinal direction D1 so that one end 11 of the longitudinal direction D1 of the packaging sheet 10 does not exceed the second folded line L2. It is preferable to adjust. At that time, one end 11 of the longitudinal direction D1 may be aligned with the second fold line L2, or may be separated from the second fold line L2 by a predetermined distance as shown in FIG. Further, when the second folded portion F2 is folded back at the second folded line L2, the other end 12 of the longitudinal direction D1 may be folded so as to reach the first folded line L1 of the first folded portion F1. As shown in 1, the other end 12 may be located at a predetermined distance from the first folding line L1. By adjusting the lengths of the first folded-back portion F1 and the second folded-back portion F2 in this way, a region in which the number of stacked sheets of the packaging sheets is different is formed at the edge of the individually packaged absorbent article 100.

As shown in FIGS. 1 and 2, the second folded-back portion F2 may be stopped by the sealing tape 50 with respect to the first folded-back portion F1. The sealing tape 50 is preferably provided at the center of D2 in the lateral direction over the second folded portion F2 and the first folded portion F1.

(Seal part)
In the individually packaged absorbent article 100, after the packaging sheet 10 is folded together with the absorbent article 1 as described above, both edges of the packaging sheet 10 in the lateral direction D2 are sealed, and the sealing portions 18 and 18 are formed. ing. By forming the sealing portions 18 and 18, it is possible to prevent dust and the like from entering the individually packaged absorbent article 100 from the outside. In the present specification, the edge portion of the individually packaged absorbent article refers to a portion where the absorbent article 1 does not exist. Therefore, at the edge portion, the packaging sheets are in contact with each other and overlapped with each other.

The sealing portions 18 and 18 refer to portions where the stacked packaging sheets are crimped to each other. The sealing portions 18 and 18 are formed by, for example, a heat seal, an ultrasonic seal, or the like.

The sealing portions 18 and 18 are formed along the longitudinal direction D1 of the packaging sheet 10 over the entire longitudinal direction D1. Further, the seal portions 18 and 18 may reach both end edges in the lateral direction D2, or may be formed at positions separated from both end edges by a predetermined distance.

(Peeling function part)
In this embodiment, as shown in FIG. 4, the peeling function portion 21 is formed on the inner surface of the packaging sheet 10. The peeling function portion 21 is a portion having a function of easily peeling even if it comes into contact with the adhesive. The peeling function portion 21 may be formed by applying, for example, a liquid peeling agent (release agent) containing a silicone-based resin, a paraffin-based resin, a fluororesin, or the like. Further, a sheet made of the material of the release agent can be formed by being adhered to the inner surface of the packaging sheet 10.

As shown in FIG. 4A, the peeling function portion 21 is not formed on the entire inner surface of the packaging sheet 10, but is formed within a predetermined range in the longitudinal direction D1 at one end of the packaging sheet 10 in the lateral direction D2. It may be continuously formed from the to the other end. That is, the peeling function portion 21 may be formed in a band shape having a predetermined width in the longitudinal direction D1 along the lateral direction D2. This eliminates the need to adjust the range in which the peeling function portion 21 is formed at least in the lateral direction D2 during the production of the individually packaged absorbent article 100. Further, for example, when the packaging sheet 10 is obtained by cutting the long original packaging sheet 10A (described later with reference to FIG. 12), the feeding direction (transportation direction or the long direction) of the long original packaging sheet 10A is further obtained. ), Since the peeling function portion 21 can be applied with the same width, the formation of the peeling function portion 21 becomes easy.

FIG. 5 shows a sectional view taken along line II-II of FIG. FIG. 5 is drawn with the stacked packaging sheets separated from each other for the sake of explanation. As shown in FIG. 5, the peeling function portion 21 formed on the inner surface of the second folded portion F2 faces the outer surface of the first folded portion F1. Therefore, the peeling function unit 21 does not face another peeling function unit 21. That is, in this example, the peeling function portion 21 on the inner surface of the second folded portion F2 faces the non-peeling function portion of the first folded portion F1 that does not have a peeling function. In the present specification, the portion where the peeling functional portion 21 is not formed may be referred to as a non-peeling functional portion unless otherwise specified.

When the peeling function portions 21 face each other at the edge portion, even if the stacked packaging sheets 10 are heat-sealed, the sealing property may be low (the sealing strength is small), which is shown in FIG. According to this example, it is possible to avoid a decrease in the sealing strength of the sealing portion at the edge portion.

Further, as shown in FIG. 4B, an adhesive layer 9 is formed between the inner surface of the packaging sheet 10 and the non-skin surface of the absorbent article 1. When the individually packaged absorbent article 100 was opened and the absorbent article 1 was taken out, the pressure-sensitive adhesive layer 9 was in a state of being attached to the non-skin surface of the absorbent article 1, and the absorbent article 1 was attached to the underwear. It is a layer that acts to prevent slippage. The pressure-sensitive adhesive layer 9 is provided within the range in which the peeling function portion 21 of the packaging sheet 10 is formed in a plan view in a developed state as shown in FIG. 4 (b). Further, also in a plane view in a developed state, the pressure-sensitive adhesive layer 9 is a pressure-sensitive adhesive layer for the main body, and is formed within the range of the main body of the absorbent article 1 (the portion of the absorbent article 1 excluding the wings and flaps). ing. The pressure-sensitive adhesive layer 9 is preferably provided in the range where the absorber 4 is provided (FIG. 3).

In the examples shown in FIGS. 4 and 5, since the peeling function portion 21 is formed in the second folded-back portion F2, the pressure-sensitive adhesive layer 9 corresponds to the peeling function portion 21 in the longitudinal direction in the absorbent article 1. It is provided at the end (front or rear) of the. In the portion near the longitudinal end of the absorbent article 1 (front or rear), the absorbent article 1 tends to be rolled up or displaced, so that the absorbent article 1 is displaced near the longitudinal end. By preventing the above, the entire absorbent article 1 can be more stably fixed to the underwear. Therefore, since the peeling function portion 21 is formed in the second folded-back portion F2, the slip-preventing action of the absorbent article 1 can be more effectively exerted.

(Modification example)
6 and 7 show a modified example of the structure of the peeling function portion and the pressure-sensitive adhesive layer in the individually packaged absorbent article 100. FIG. 6 is a diagram corresponding to FIG. 4. FIG. 7 is a schematic cross-sectional view taken along the longitudinal direction D1 of the edge portion in a state where the packaging sheet and the absorbent article shown in FIG. 6 are folded to obtain the individually packaged absorbent article 100, and corresponds to FIG. It is a figure.

As shown in FIG. 6A, in this example, the peeling function portion is divided into a plurality of parts in a predetermined range in the longitudinal direction D1, that is, the peeling function portions 21a, 21b, 21c are formed. Similar to the example shown in FIG. 4A, the peeling function portions 21a, 21b, and 21c are all formed in a strip shape continuously from one end to the other end of the packaging sheet 10 in the lateral direction D2. The peeling function portion 21a formed in the second folded-back portion F2 in FIG. 6A is formed in the same range as the peeling function portion 21 shown in FIG. 4A. In the example shown in FIG. 6A, in addition to the peeling function portion 21a, the peeling function portion 21b is formed in the intermediate portion M, and the peeling function portion 21c is formed in the first folded portion F1.

When the packaging sheet 10 is folded, the first folded portion F1 is folded so as to overlap the central portion M. Therefore, at the edge portion without the absorbent article 1, the inner surface of the first folded portion F1 and the inner surface of the central portion M are folded. Will face each other. However, in this example, as shown in FIG. 7, the peeling function portion 21c formed in the first folding portion F1 and the peeling function portion 21b formed in the intermediate portion M do not face each other, that is, the sealing portion. It is formed so that it does not come into contact with each other when it is formed. This makes it possible to prevent deterioration of the sealing property of the sealed portion due to the peeling function portions facing each other when the edge portion is sealed.

Also in the examples shown in FIGS. 6 and 7, the adhesive layer for the main body is provided between the inner surface of the packaging sheet 10 and the non-skin surface of the absorbent article 1. The pressure-sensitive adhesive layer is formed so as to correspond to the peeling function portion of the packaging sheet 10. In this example, the peeling function portion 21a corresponds to the pressure-sensitive adhesive layer 9a, and the peeling function portion 21b corresponds to the pressure-sensitive adhesive layer 9b. The adhesive layer 9c is provided so as to correspond to the peeling function portion 21c. Therefore, in this example, since the pressure-sensitive adhesive layer can be provided by being divided in the longitudinal direction, the absorbent article 1 is less likely to be displaced when mounted.

If the peeling function portion 21c formed in the first folding portion F1 and the peeling function portion 21b formed in the intermediate portion M can be arranged so as not to face each other, the peeling function portion 21b and the peeling function portion 21c The formation range in the longitudinal direction D1 of is arbitrarily determined. For example, in the examples shown in FIGS. 6 and 7, the length of the peeling function portion 21c formed in the first folding portion F1 in the longitudinal direction D1 is the length of the peeling function portion 21b formed in the intermediate portion M in the longitudinal direction D1. Although it is longer than the length, it may be formed shorter than the length of the peeling function portion 21c in the longitudinal direction D1. Further, the peeling function portion 21c may not be formed in the first folding portion F1 and the peeling function portion 21b may be formed in the intermediate portion M, or the peeling function portion 21b may not be formed in the intermediate portion M and the first folding portion may be formed. The peeling function portion 21c may be formed in F1. However, as shown in FIGS. 6 and 7, it is preferable that the length of the peeling function portion 21c formed in the first folding portion F1 is longer than the length of the peeling function portion 21b formed in the intermediate portion M. When the peeling function portion 21c is formed in the first folded portion F1, the pressure-sensitive adhesive layer 9c can be provided in the vicinity of the longitudinal end portion of the absorbent article 1 in response to the peeling function portion 21c. The action of having the pressure-sensitive adhesive layer in the vicinity of the longitudinal end portion of the absorbent article 1 is as described for the pressure-sensitive adhesive layer 9 in the examples shown in FIGS. 4 and 5. Therefore, as shown in FIGS. 6 and 7, the pressure-sensitive adhesive layers 9a and 9c are formed in the vicinity of both ends (front and rear) of the absorbent article 1 in the longitudinal direction to prevent the pressure-sensitive adhesive layer from slipping. The action can be exerted more effectively.

FIG. 6B also shows the wing adhesive layers 9W and 9W formed on the non-skin surface of the wings W and W of the absorbent article 1. As shown in FIG. 6B, the adhesive layer for the main body is not formed in the range of the longitudinal direction D1 where the adhesive layers 9W and 9W for wings are formed. In this case, the wings W and W are formed, and when the wings W and W are attached, the wings W and W are fixed to the underwear by the wing adhesive layers 9W and 9W, so that a certain degree of slip prevention action is obtained. Therefore, even if the adhesive layer for the main body is omitted in the range where the adhesive layers 9W and 9W for the wings are formed, the slip-preventing action of the absorbent article 1 is ensured. Moreover, since the pressure-sensitive adhesive layer can be reduced, the manufacturing cost can also be reduced.

The position where the wings W and W are formed is the intermediate portion in the longitudinal direction of the absorbent article 1, and the intermediate portion of the absorbent article 1 may correspond to the intermediate portion M in the longitudinal direction D1 of the packaging sheet 10. .. Therefore, if the formation of the adhesive layer for the main body can be omitted in the range in the longitudinal direction D1 where the adhesive layers 9W and 9W for wings are formed, is it possible to omit the peeling function portion in the intermediate portion M of the packaging sheet 10? , Can be a small range as shown in FIG. 6 (b). Here, as described above, if the range of the peeling function portion formed in the central portion M in the longitudinal direction D1 is small, the range of the peeling function portion 21c formed in the first folded portion F1 in the longitudinal direction D1 can be increased. Therefore, the range of the adhesive layer 9c for the main body corresponding to this can be expanded. As described above, the presence of the pressure-sensitive adhesive layer in the vicinity of the end portion in the longitudinal direction of the absorbent article 1 enhances the anti-slip effect.

As described above, in this embodiment, in order to improve the sealing property of the sealing portion, the peeling function portions are prevented from facing each other at the edge portion, and the pressure-sensitive adhesive is applied even under the restriction of the arrangement of the peeling function portions. The arrangement of the peeling function part is further devised so that the layers can be arranged as effectively as possible.

Further, as described above, the number of packaging sheets stacked at the edge varies depending on the folding method of the packaging sheet 10. For example, as shown in FIG. 7, the individually packaged absorbent article 100 includes thin regions _RA1 and _RA2 in which two packaging sheets are stacked, and thick regions _RB in which three packaging sheets are stacked. Is formed. In that case, as shown in FIG. 7, it is preferable that the thin regions _RA1 and _RA2 do not include the peeling function portion. The sealing strength of the sealing portion at the edge portion becomes weaker as the number of stacked packaging sheets decreases. Therefore, by not including the peeling function portion in the thin regions _RA1 and _RA2 , the thin regions _RA1 and _RA2 It is possible to increase the sealing strength in. As a result, it is possible to obtain a well-balanced sealing strength of the sealing portion over the longitudinal direction D1.

(Folded structure in four)
Hereinafter, FIGS. 8 and 9 also describe the individually packaged absorbent article 200 having a four-fold structure. FIG. 8A is a view of the packaging sheet 10'viewed from the inside, and FIG. 8B shows the adhesive layer and the absorbent article 1'arranged on the packaging sheet 10'of FIG. 8A. It is a figure. Further, FIG. 9 is a schematic cross-sectional view taken along the longitudinal direction D1 of the edge portion in a state where the packaging sheet and the absorbent article shown in FIG. 6 are folded to obtain the individually packaged absorbent article 200. 8 is a diagram corresponding to FIGS. 4 and 6, and FIG. 9 is a diagram corresponding to FIGS. 5 and 7.

When packaging a long absorbent article 1'such as a night napkin, prepare a longer packaging sheet 10', and combine the packaging sheet 10'with the absorbent article 1'as in the case of tri-folding. It can be folded in the longitudinal direction D1. The folding method in the case of four folds is basically the same as in the case of three folds (FIGS. 4 to 7), but the first folded portion F1 to be folded first is the fold line L1 and the longitudinal direction D1. The first folding portion sub-section F1B is folded back inward at the third folding line L3 extending along the lateral direction D2, which is positioned between the one end and 11. After that, the entire first folded portion F1 (first folded portion main portion F1A and first folded portion sub portion F1B) is folded at the first folded line F1, and then the second folded portion is folded at the second folded line F2. Fold F2. By folding it in four or more, even a long absorbent article can be packaged compactly. If the first folded portion F1 is folded in advance along two or more folding lines, it is possible to obtain an individually packaged absorbent article having five or more folds.

Also in the individually packaged absorbent article 200, the peeling function portions 21a, 21b, 21c, 21d are continuously provided on the packaging sheet 10'from one end to the other end in the lateral direction D2 to a predetermined range in the longitudinal direction D1. It is formed. Then, as shown in FIG. 9, the packaging sheet 10'is formed so as not to face each other at the edge portion in the folded state. As a result, it is possible to prevent deterioration of the sealing property of the sealing portion due to the peeling function portions facing each other.

Further, the pressure-sensitive adhesive layers 9a, 9b, 9c, and 9d are formed corresponding to the peeling function portions 21a, 21b, 21c, and 21d, respectively. The pressure-sensitive adhesive layer is formed within the range where the peeling function portion is formed and within the range of the main body of the absorbent article 1'. These pressure-sensitive adhesive layers are exposed on the non-skin surface when the individually packaged absorbent article 200 is opened and the absorbent article 1'is taken out.

The peeling function portion 21b formed in the intermediate portion M of the packaging sheet 10'and the peeling function portion 21c formed in the first folded portion main portion F1A can be arranged so as not to face each other in the longitudinal direction D1. The formation range can be arbitrarily determined. The same applies to the peeling function portion 21c formed on the first folded portion main portion F1A and the peeling function portion 21d formed on the first folded portion sub portion F1B. However, since the peeling function portion 21d formed in the first folding portion sub-part F1B is a region corresponding to the vicinity of the rear end portion of the absorbent article 1', if the peeling function portion 21d is formed in a wide range, the absorbent function portion 21d is absorbent. It is preferable because the pressure-sensitive adhesive layer can be widely formed behind the article 1'.

The absorbent article 1'shown in FIG. 8 (b) is provided with hip hold flaps H, H extending laterally at the rear (a portion corresponding to the buttocks when mounted). By providing the hip hold flaps H and H, it is possible to prevent the absorbent article 1 from being displaced from the rear, and it is also possible to prevent leakage from the rear. As shown in FIG. 8B, adhesive layers 9H and 9H for hip hold flaps are formed on the non-skin surfaces of the hip hold flaps H and H, respectively. The hip hold flap adhesive layers 9H and 9H allow the hip hold flaps H and H to be securely fixed to the underwear.

Further, in this example, as shown in FIG. 8B, the adhesive layer for the main body is not formed in the range in the longitudinal direction in which the adhesive layers 9H and 9H for hip hold flaps are formed. As described above, since the hip hold flaps H and H are fixed to the underwear by the hip hold flap adhesive layers 9H and 9H at the time of mounting, the absorbent article 1'according to this example has a certain degree of anti-slip action at the rear. Has been obtained. Therefore, even if the adhesive layer for the main body is omitted in the range where the adhesive layers 9H and 9H for the hip hold flaps are formed, the rearward displacement preventing action is ensured.

The positions where the hip hold flaps H and H are formed are positions slightly forward of the absorbent article 1', that is, positions corresponding to the first folded portion main portion F1A of the packaging sheet 10'. Therefore, the adhesive layer for the main body can be omitted or the forming range can be reduced in the first folded portion main portion F1A. Then, in the folded state, the range of the peeling function portion 21d of the first folded portion sub portion F1B facing the first folded portion main portion F1A can be increased (FIG. 9). If the range of the peeling function portion 21d formed in the first folding portion sub-section F1B is large, the range of formation of the adhesive layer 9d for the main body in the vicinity of the rear end of the absorbent article 1'can be increased, so that the absorbent article 1'can be fixed more stably in the rear.

Also in this example of the four _- fold structure, as shown in FIG. 9, the thin regions _RA1 and RA2 in which two packaging sheets are stacked and the thick region _RB in which three or four packaging sheets are stacked are stacked. And are formed. In this case, by preventing the thin regions _RA1 and _RA2 from including the peeling function portion, the sealing strength in the thin regions _RA1 and _RA2 can be increased. As a result, it is possible to obtain a well-balanced sealing strength of the sealing portion over the longitudinal direction D1.

(Modification example of the peeling function part of the four-fold structure and the adhesive layer)
10 and 11 show a modified example of the structure of the peeling function portion and the pressure-sensitive adhesive layer in the individually packaged absorbent article 200. FIG. 10 is a diagram corresponding to FIG. FIG. 11 is a schematic cross-sectional view taken along the longitudinal direction D1 of the edge portion in a state where the packaging sheet and the absorbent article shown in FIG. 10 are folded to obtain the individually packaged absorbent article 200, and corresponds to FIG. It is a figure.

Also in this example shown in FIGS. 10 and 11, the peeling function portions 21a, 21b, 21c, and 21d are continuously provided on the packaging sheet 10'from one end to the other end in the lateral direction D2 in the longitudinal direction D1. It is formed in a predetermined range. Then, as shown in FIG. 9, the packaging sheet 10'is formed so as not to face each other at the edge portion in the folded state. As a result, it is possible to prevent deterioration of the sealing property of the sealing portion due to the peeling function portions facing each other. Further, the pressure-sensitive adhesive layers 9a, 9b, 9c, and 9d are formed corresponding to the peeling function portions 21a, 21b, 21c, and 21d, respectively. The pressure-sensitive adhesive layer is formed within the range where the peeling function portion is formed and within the range of the main body of the absorbent article 1'.

Also in this example, if the peeling function portion 21b formed in the intermediate portion M of the packaging sheet 10'and the peeling function portion 21c formed in the first folded portion main portion F1A can be arranged so as not to face each other. The formation range in the longitudinal direction D1 can be arbitrarily determined. The same applies to the peeling function portion 21c formed on the first folded portion main portion F1A and the peeling function portion 21d formed on the first folded portion sub portion F1B. However, since the peeling function portion 21d formed in the first folding portion sub-part F1B is a region corresponding to the vicinity of the rear end portion of the absorbent article 1', if the peeling function portion 21d is formed in a wide range, the absorbent function portion 21d is absorbent. It is preferable because the pressure-sensitive adhesive layer can be widely formed behind the article 1'.

In this example, unlike the examples shown in FIGS. 8 and 9, the lengths of the peeling function portions 21a and 21c in the longitudinal direction D1 are long. The peeling function portion 21a extends until it reaches the second folding line L2, and the peeling function portion 21c extends until it reaches the first folding line L1. In this configuration, as shown in FIG. 9, in the thin R _A1 and R _A2 in which two packaging sheets are stacked at the edge portion, a peeling function portion is formed on one side of the opposing packaging sheets. Therefore, in this example, the effect of improving the sealing strength of the sealing portion in the thin regions _RA1 and _RA2 as described with reference to FIG. 7 cannot be obtained. However, in this example, since the range of the peeling function portions 21a and 21c in the longitudinal direction D1 is widened, the range in which the pressure-sensitive adhesive layers 9a and 9c can be formed can also be expanded, so that the absorbent article 1'is more easily attached at the time of mounting. This example is preferable from the viewpoint that it can be stably fixed to the underwear.

(Manufacturing method of individually packaged absorbent articles)
Hereinafter, a method for manufacturing an individually packaged absorbent article will be described with reference to FIG. 12. FIG. 12 shows, as an example, a method for manufacturing the individually packaged absorbent article 200 shown in FIGS. 8 and 9.

In the method for manufacturing an individually packaged absorbent article according to this embodiment, a long original packaging sheet 10A to be a packaging sheet is prepared. The original packaging sheet 10A is obtained in the form of a rolled roll and is fed out along the transport direction Dt. The transport direction Dt of the long original packaging sheet 10A is the lateral direction D2 of the obtained packaging sheet 10', and the width direction Dv of the original packaging sheet 10A orthogonal to the transport direction Dt is the length of the obtained packaging sheet 10'. It becomes the direction D1.

The peeling function portions 21a, 21b, 21c, 21d continuous along the transport direction Dt are partially formed on the original packaging sheet 10A in the orthogonal direction orthogonal to the transport direction (S1). At this time, the plurality of peeling function portions 21a, 21b, 21c, 21d are formed partially in the orthogonal direction Dv, that is, separated from each other in the orthogonal direction Dv. The method for forming the peeling function portions 21a, 21b, 21c, and 21d is not limited, but the peeling function portion 21a, 21b, 21c, and 21d can be formed by applying the peeling agent by a known coating means such as a spray or a roll coater. As a result, the original packaging sheet 10A is formed with a striped peeling function portion extending in the transport direction Dt.

Subsequently, the pressure-sensitive adhesive layers 9a, 9b, 9c, and 9d are formed in the range where the peeling function portions 21a, 21b, 21c, and 21d are formed (S2). The method of applying the pressure-sensitive adhesive layers 9a, 9b, 9c, and 9d is also not limited, and can be applied, for example, by melt coating using a hot melt coater. As the coating means, a gravure coater, a spray coater, a spiral gun, a bead gun and the like can be used. At this time, the pressure-sensitive adhesive layers 9a, 9b, 9c, and 9d may be applied to the entire peeling function portions 21a, 21b, 21c, and 21d, respectively, or a part of the peeling function portions 21a, 21b, 21c, and 21d. May be applied to. For example, the pressure-sensitive adhesive layers 9a, 9b, 9c, and 9d can be formed in stripes or dots within the range of the peeling function portions 21a, 21b, 21c, and 21d, respectively.

Then, the absorbent article 1'is placed on the pressure-sensitive adhesive layers 9a, 9b, 9c, 9d (S3). At this time, it is preferable to arrange the absorbent article 1'so that the pressure-sensitive adhesive layers 9a, 9b, 9c, and 9d do not protrude from the main body of the absorbent article 1'. When the absorbent article is provided with a wing and / or a hip hold flap, it is preferable to fold the wing and / or the hip hold flap toward the longitudinal center line of the absorbent article. Also in FIG. 12, the wings W, W and the hip hold flaps H, H of the absorbent article 1'(FIGS. 8 and 10) are folded.

Further, the adhesive layers 9W and 9W for the wings W and W, and the adhesive layers 9H and 9H for the hip hold flaps H and H (FIGS. 6 and 8) are applied, and the adhesive layers 9W and 9W for the wings are applied. And a release paper having a size corresponding to the adhesive layers 9H and 9H for the hip hold flap is arranged. After that, by a known method, one end side and the other end side of the original packaging sheet 10A in the orthogonal direction Dv are folded, a seal portion is formed at a position between the absorbent articles 1'which becomes an edge portion, and then cut. , Individual packaging absorbent article 200 is obtained. In this example, a four-fold structure as described with reference to FIGS. 8 to 11 can be used.

When the original packaging sheet 10A is folded together with the absorbent article 1', the peeling function portions are prevented from facing each other. Alternatively, when the original packaging sheet 10A is applied to the peeling function portion, the position is set so that the peeling function portions do not face each other. As a result, as described above, it is possible to obtain a sealing portion having a high sealing property at the edge portion of the individually packaged absorbent article.

1, 1'Absorptive article 9, 9a, 9b, 9c, 9d Adhesive layer for main body 9W Adhesive layer for wing 9H Adhesive layer for hip hold flap 10, 10'Packaging sheet 10A Original packaging sheet 11 Length of packaging sheet Direction One end 12 Longitudinal end of the packaging sheet 18 Sealing part 21, 21a, 21b, 21c, 21d Peeling function part 50 Sealing tape 100, 200 Individually packaged absorbent article D1 Longitudinal direction of the packaging sheet D2 Short direction of the packaging sheet Dt Original packaging sheet transport direction Dv Orthogonal direction L1 First folding line L2 Second folding line L3 Third folding line F1 First folding part F1A First folding part Main part F1B First folding part Sub part F2 Second folding part H Hip hold flap M Middle part R _A1 , R _A2 Thin area R _B Thick area W Wing

Claims (8)

An individually packaged absorbent article having an absorbent article and an elongated packaging sheet for individually packaging the absorbent article.
The absorbent article is arranged on the inner surface side of the packaging sheet, and the first folded portion including one end in the longitudinal direction of the packaging sheet and the second folded portion including the other end in the longitudinal direction are sequentially the absorbent. Folded along with the article in the longitudinal direction, the lateral edge of the packaging sheet is sealed over the longitudinal direction.
On the inner surface of the packaging sheet, a peeling function portion continuous from one end to the other end in the lateral direction of the packaging sheet is partially formed in the longitudinal direction.
An adhesive layer is formed between the packaging sheet and the non-skin surface of the absorbent article within a range of contact with the peeling function portion and contact with the main body of the absorbent article.
An individually packaged absorbent article in which the peeling function portions do not face each other at the edge portion. The individual packaging absorbent article according to claim 1, wherein the peeling function portion is formed at least on the inner surface of the portion of the second folded portion that overlaps with the first folded portion. The individual packaging absorbent article according to claim 2, wherein the peeling function portion is further formed on the inner surface of the first folded portion. A thin region in which two packaging sheets are stacked and a thick region in which three or more packaging sheets are stacked are formed on the edge portion.
The individual packaging absorbent article according to any one of claims 1 to 3, wherein the thin region does not include the peeling function portion. The absorbent article comprises a pair of wings, and a wing adhesive layer is formed on the non-skin surface of each wing.
The individual packaging absorbent article according to any one of claims 1 to 4, wherein the pressure-sensitive adhesive layer is not formed in the range in the longitudinal direction in which the pressure-sensitive adhesive layer for wings is formed. The first folded portion has a first folded portion main portion and a first folded portion sub portion arranged adjacent to the outside of the first folded portion main portion in the longitudinal direction.
The individual packaging absorbency according to any one of claims 1 to 4, wherein the first folded portion sub-section is folded toward the inner surface side in the longitudinal direction before the folding of the second folded portion. Goods. The absorbent article comprises a hip hold flap extending bilaterally from the body of the absorbent article behind the absorbent article, and a hip hold flap adhesive layer on the non-skin surface of each hip hold flap. Is formed,
The individual packaging absorbent article according to claim 6, wherein the pressure-sensitive adhesive layer is not formed in the range in the longitudinal direction in which the pressure-sensitive adhesive layer for a hip hold flap is formed. On the inner surface of the long original packaging sheet to be the packaging sheet, a peeling function portion continuous along the transport direction of the original packaging sheet is partially formed in an orthogonal direction orthogonal to the transport direction.
An adhesive layer is formed within the range of the peeling function portion and within the planned arrangement range of the main body of the absorbent article.
A plurality of absorbent articles are spaced apart so that the non-skin surface of the absorbent article is in contact with the pressure-sensitive adhesive layer.
One end side of the original packaging sheet in the orthogonal direction orthogonal to the transport direction and the other end side in the orthogonal direction are sequentially folded together with the absorbent article in the orthogonal direction.
Including sealing the portion between the absorbent articles, which is the edge of the absorbent article, over the orthogonal direction.
A method for manufacturing an individually packaged absorbent article in which the peeling function portions do not face each other at the edge portion.

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