JP2021159318A - Individual package of absorbent article - Google Patents

Abstract

To provide an individual package of an absorbent article in which a portion releasably attached to a packaging sheet of a sealing tape is unlikely to stick to the packaging sheet due to a change over time, a temperature change, and the like.SOLUTION: In an individual package 21 of an absorbent article, an absorbent article 11 is packaged with a packaging sheet 24 made of a plastic film. The packaging sheet 24 is provided with a sealing tape 32 for maintaining a packaging state of the individual package 21. The sealing tape 32 has a fixing part 33 attached to a first end 25 of the packaging sheet 24 in a longitudinal direction y, and a knob part 34 extending outward in the longitudinal direction y from the first end 25 of the packaging sheet 24. The knob part 34 has an adhesive layer on the inside surface and is releasably attached to the outside surface of the packaging sheet 24. The packaging sheet 24 is formed with an embossed region 30 having an uneven outside surface, which overlaps at least a part of the knob part 34.SELECTED DRAWING: Figure 3

Description

The present invention relates to an individual package of an absorbent article in which an absorbent article such as a urine pad (including a light incontinence pad) or a sanitary napkin is wrapped in a packaging sheet.

Conventionally, an individual package of an absorbent article in which the absorbent article is folded together with a packaging sheet is widely known (for example, Patent Documents 1 to 4).

Japanese Unexamined Patent Publication No. 2014-128363 Japanese Unexamined Patent Publication No. 2015-084948 JP-A-2018-157943 JP-A-2019-126445

In the individual packaging of the absorbent article, a sealing tape may be provided on the packaging sheet in order to maintain the packaging state of the individual packaging. The sealing tape is usually attached to one end of the packaging sheet in the longitudinal direction, and an adhesive layer is provided on a knob portion extending outward in the longitudinal direction from the end, and the sealing tape is sealed by this adhesive layer. The knob part of the stop tape is detachably attached to the outer surface of the packaging sheet. However, as examined by the present inventor, when the packaging sheet is composed of a plastic film, the adhesive on the knob portion permeates the plastic film due to changes over time, temperature, etc., and the knob portion becomes the packaging sheet. It became clear that it may stick firmly to the resin. When the knob portion of the sealing tape is firmly fixed to the packaging sheet in this way, when the knob portion is pulled when the individual packaging body is opened, the knob portion does not peel off smoothly from the packaging sheet and the packaging sheet may be damaged. It becomes easy to deform. As a result, it may be difficult to use the packaging sheet as a disposal sheet for used absorbent articles.

The present invention has been made in view of the above circumstances, and an object of the present invention is to wrap an absorbent article in a wrapping sheet made of a plastic film, and the wrapping sheet is provided with a sealing tape for maintaining the packaged state of the individual wrapping body. An individual package of an absorbent article that is detachably attached, and the portion that is detachably attached to the packaging sheet of the sealing tape may stick to the packaging sheet due to changes over time or temperature. The purpose is to provide an individual package of a difficult-to-absorb article.

The absorbent article package of the present invention that has been able to solve the above problems is an individual package of the absorbent article in which the absorbent article is wrapped in a packaging sheet; the absorbent article is contained in the packaging sheet. Stacked on the sides and folded with the wrapping sheet; the wrapping sheet is made of plastic film and has a first end on one side and a second end on the other side in the longitudinal direction, with the first end Facing the outside of the individual packaging; the packaging sheet is provided with a sealing tape that maintains the packaging of the individual packaging, and the sealing tape is a fixed portion attached to the first end of the packaging sheet. It has a knob portion extending outward in the longitudinal direction from the first end portion of the packaging sheet, and the knob portion has an adhesive layer on the inner side surface and is detachably attached to the outer surface of the packaging sheet. The wrapping sheet is characterized in that an embossed region having an uneven outer surface is formed so as to overlap with at least a part of the knob portion.

In the individual packaging of the absorbent article of the present invention, an embossed region is formed on a packaging sheet made of a plastic film, and a knob portion of a sealing tape is attached to the embossed region. The adhesive on the knob portion is less likely to penetrate into the packaging sheet, and the knob portion is less likely to firmly adhere to the packaging sheet. Therefore, for example, even if the individual package of the absorbent article is left for a long period of time or placed at a high temperature, the knob portion of the sealing tape can be smoothly peeled off from the package sheet, and the package sheet is less likely to be damaged or deformed. Become.

The individual package has a first main surface including the first end portion and a second main surface on the opposite side thereof, and an embossed region is formed on the packaging sheet on the first main surface side and is on the second main surface side. It is preferable that the packaging sheet is not formed. The packaging sheet extends from a first region located on the first main surface side and including the first end portion, a second region extending from the first region and located on the second main surface side, and extending from the second region. It is also preferable that the embossed region has a third region located on the first main surface side and is formed in the third region and not in the first region and the second region. As a result, when the used absorbent article is wrapped in the wrapping sheet and discarded, the knob portion of the sealing tape is fastened to the place where the embossed region of the wrapping sheet is not formed, so that the used absorbent article can be removed. The state of being wrapped in the packaging sheet can be stably maintained.

The embossed region is preferably formed so as to overlap only a part of the knob portion. If the embossed region is formed in this way, a part of the knob portion is attached to the outer surface of the packaging sheet other than the embossed region, so that the sealing state of the individual packaging body is stabilized by the sealing tape. It becomes easier to maintain.

The embossed region is preferably formed so as to overlap the tip of the knob portion. When the embossed region is formed in this way, when the individual package is opened, the knob portion can be easily peeled off from the packaging sheet by pinching the tip of the knob portion with a finger.

The embossed region has a high-density region in which the area ratio of the convex portion of the unevenness is high and a low-density region in which the area ratio of the convex portion of the unevenness is low when viewed from the outer surface of the packaging sheet. The low-density region may be formed so as to overlap the knob portion, and the low-density region may be formed so as to be located closer to the tip end side of the knob portion than the high-density region.

The embossed region is preferably formed so that the area ratio of the convex portion of the unevenness is 70% or less when viewed from the outer surface of the packaging sheet. The embossed region is also preferably provided with the uneven protrusions in a scattered or linear shape when viewed from the outer surface of the packaging sheet. As a result, in the embossed region, the amount of the adhesive provided on the knob portion permeating the plastic film of the packaging sheet can be suppressed.

It is preferable that the embossed region extends outward in the width direction from the knob portion and is formed with a length of 1/4 or more in the width direction of the packaging sheet. If the embossed region is formed in this way, the knob portion of the sealing tape overlaps with the embossed region even if the position where the sealing tape is attached to the packaging sheet is slightly deviated in the width direction when manufacturing the individual packaging body. Can be installed like this.

According to the individual packaging of the absorbent article of the present invention, the adhesive on the knob portion of the sealing tape is unlikely to permeate into the packaging sheet due to changes over time, temperature, etc., and the knob portion is strong on the packaging sheet. It becomes difficult to stick to. Therefore, for example, even if the individual package of the absorbent article is left for a long period of time or placed at a high temperature, the knob portion of the sealing tape can be smoothly peeled off from the package sheet, and the package sheet is less likely to be damaged or deformed. Become.

An example of an absorbent article used for an individual package of an absorbent article is shown, and a plan view of the absorbent article as viewed from the skin surface side is shown. The II-II cross-sectional view of the absorbent article shown in FIG. 1 is shown. FIGS. 3 (a) and 3 (b) show an example of a method for forming an individual package of an absorbent article, and FIG. 3 (b) shows a plan view of the individual package of the absorbent article as viewed from the first main surface side. show. It shows the perspective view of the individual package of the absorbent article shown in FIG. 3 (b). Another example of a plan view of an individual package of an absorbent article viewed from the first main surface side is shown. Another example of a plan view of an individual package of an absorbent article viewed from the first main surface side is shown. Another example of a plan view of an individual package of an absorbent article viewed from the first main surface side is shown. Another example of a plan view of an individual package of an absorbent article viewed from the first main surface side is shown.

The individually wrapped body of the absorbent article of the present invention is one in which the absorbent article is wrapped in a packaging sheet. First, the absorbent article used in the present invention will be described.

The absorbent article used in the present invention is used by applying it to the crotch of the wearer, and is not particularly limited as long as it can receive excrement such as urine. Examples of the absorbent article include urine pads (including light incontinence pads), sanitary napkins, disposable diapers and the like. The absorbent articles used in the present invention are individually packaged in a packaging sheet, and examples of such absorbent articles generally include urine pads, sanitary napkins, and the like, and the absorbent articles of the present invention. Sex articles are suitably applied to such applications.

The shape of the absorbent article is not particularly limited. When the absorbent article is a urine pad or a sanitary napkin, the shape of the absorbent article is substantially rectangular, oval, hourglass-shaped, battledore-shaped or the like.

The absorbent article is configured, for example, by arranging an absorber between a liquid permeable top sheet and a liquid permeable back sheet. The top sheet is a sheet located on the skin surface side of the absorbent article, and the back sheet is a sheet located on the non-skin surface side of the absorbent article. In the present invention, the skin surface side means the side facing the wearer's skin when wearing the absorbent article, and the non-skin surface side means the side facing away from the wearer. Further, the surface of the absorbent article on the non-skin surface side is referred to as an outer surface.

The absorbent article has a longitudinal direction and a width direction. The longitudinal direction means a direction extending in the anteroposterior direction of the wearer's crotch when the wearer wears the absorbent article, and the width direction is on the same plane as the absorbent article and orthogonal to the longitudinal direction. Means direction. The longitudinal direction and the width direction of the individually packaged body and the packaging sheet of the absorbent article are also determined based on the longitudinal direction and the width direction of the absorbent article.

Examples of the top sheet include non-woven fabrics formed from hydrophilic fibers such as cellulose, rayon and cotton; and hydrophobicity such as polyolefins (eg polypropylene, polyethylene), polyesters (eg PET) and polyamides (eg nylon). A non-woven fabric formed from fibers, in which the surface of the hydrophobic fibers is hydrophilized by a surfactant, or the like can be used. Further, as the top sheet, a woven cloth, a knitted cloth, or a plastic film having holes formed may be used.

As the back sheet, a non-woven fabric formed of hydrophobic fibers such as polyolefin (for example, polyethylene and polypropylene), polyester (for example, PET) and polyamide (for example, nylon), a plastic film and the like can be used. Further, a laminate of a non-woven fabric and a plastic film may be used.

When the top sheet or back sheet is composed of a non-woven fabric, it is preferable to use a spunbonded non-woven fabric, an air-through non-woven fabric, a point-bonded non-woven fabric, a melt-blown non-woven fabric, an air-laid non-woven fabric, an SMS non-woven fabric, or the like.

The absorber is not particularly limited as long as it contains an absorbent material capable of absorbing excrement such as urine. As the absorber, for example, a molded body obtained by molding an absorbent material into a predetermined shape can be used, and the molded body is covered with a sheet member such as a paper sheet (for example, tissue paper or thin paper) or a liquid-permeable non-woven fabric. You may. Examples of the absorbent material contained in the absorber include hydrophilic fibers such as cellulose fibers (for example, crushed pulp fibers), and water absorption such as polyacrylic acid type, polyaspartic acid type, cellulose type, and starch / acrylonitrile type. Examples include sex resins. Further, the absorbent material may include polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as PET, and heat-sealing fibers such as polyamide fibers such as nylon. These heat-sealing fibers may be hydrophilized with a surfactant or the like in order to enhance the affinity with body fluids such as urine.

The absorbent material preferably contains hydrophilic fibers from the viewpoint of increasing the absorption rate of urine and the like. Further, from the viewpoint of increasing the absorption capacity, the absorbent material preferably contains a water-absorbent resin. Therefore, the absorber preferably contains hydrophilic fibers (particularly pulp fibers) and a water-absorbent resin. In this case, for example, it is preferable to use an aggregate of hydrophilic fibers mixed or sprayed with a water-absorbent resin.

The absorber may be a sheet-shaped absorber. Examples of the sheet-shaped absorber include those formed so as to have a water-absorbent resin between the non-woven fabrics and not to have pulp fibers. Since the sheet-shaped absorber thus formed has a water-absorbent resin between the non-woven fabrics, a high absorption capacity can be realized. Further, since the sheet-shaped absorber does not have pulp fibers between the non-woven fabrics, it can be formed thin without being bulky.

The sheet-shaped absorber may use a water-absorbent fiber as an absorbent material. In this case as well, the absorber is not bulky and is formed thin. Examples of the water-absorbent fiber include fibers containing a protonated or salt-formed carboxyl group. For example, a water-absorbent fiber can be obtained by hydrolyzing an acrylic fiber to convert a nitrile group contained in the acrylic fiber into a carboxyl group. At this time, it is preferable that the carboxyl group contained in the water-absorbent fiber forms an alkali metal salt or an ammonia salt. Further, the water-absorbent fiber can be produced by immersing the hydrophilic fiber in acrylic acid and precipitating acrylic acid on the fiber surface.

It is preferable that the absorbent article is provided with rising flaps on both sides in the width direction on the skin surface side. By providing the rising flap, lateral leakage of urine or the like is prevented. For the rising flap, for example, side sheets extending in the longitudinal direction are joined to both sides in the width direction of the top sheet, and an elastic member is attached to the inner portion in the width direction of the side sheet (near the upper end when the rising flap rises). Is formed by providing. By providing the side sheet and the elastic member in this way, the inner portion of the side sheet in the width direction rises toward the wearer's skin due to the contraction force of the elastic member, and a rising flap is formed. The rising flap or side sheet is preferably made of a liquid-impermeable plastic film, a liquid-impermeable non-woven fabric, or the like.

It is preferable that the outer surface of the absorbent article is provided with an adhesive portion, and specifically, it is preferable that the back sheet is provided with an adhesive portion. By providing the adhesive portion, the absorbent article can be fixed to the skin surface side such as pants.

The adhesive portion is preferably detachably bonded to the inner surface of the packaging sheet for packaging the absorbent article, whereby the absorbent article is stably held in the packaging sheet. When the absorbent article is used, the packaging sheet is peeled off from the adhesive portion, so that the absorbent article can be fixed to the skin surface side of pants or the like by the adhesive portion. For the absorbent article, a release sheet may be attached to the inner surface of the packaging sheet, the release sheet and the adhesive portion may be detachably joined, and the release sheet may be wrapped in the packaging sheet. The release sheet may be peelable from the adhesive portion, for example, a laminate made of a plastic film or a laminate whose side facing the absorbent article is made of a plastic film (for example, paper, non-woven fabric, or woven cloth on the plastic film). Alternatively, it can be composed of a laminated body in which a knitted cloth or the like is laminated), or a silicone-processed paper (a paper coated with a silicone resin and provided with a release layer) or the like. The adhesive portion can be formed by applying an adhesive to the outer surface of the absorbent article or by attaching an adhesive tape.

The absorbent article is wrapped in a packaging sheet to form an individual package of the absorbent article. The wrapping sheet wraps the absorbent articles individually (one by one). The packaging sheet may be formed from one sheet member, or may be formed by joining two or more sheet members together.

The packaging sheet has a longitudinal direction and a width direction, and is preferably formed in a substantially rectangular shape. The substantially rectangular shape includes not only a rectangle but also a rectangle with rounded corners. The packaging sheet has a first end on one side in the longitudinal direction and a second end on the other side. The first end is defined as a portion including one end in the longitudinal direction of the packaging sheet, and the second end is defined as a portion including the other end in the longitudinal direction of the packaging sheet. The first end and the second end can be defined as, for example, one end of the packaging sheet or a part within 3 cm from the other end.

The packaging sheet has an inner surface facing the absorbent article side and an outer surface facing the opposite side. The inner and outer surfaces of the packaging sheet are defined based on the state in which the packaging sheet wraps the absorbent article. At least a part of the outer surface of the packaging sheet is exposed to the outside of the individual packaging body, and constitutes the outer surface of the individual packaging body.

The individual wrapping body is formed by stacking an absorbent article on the inner side surface of the wrapping sheet and folding the wrapping sheet together with creases extending in the width direction. As a result, an individual package in which the absorbent article is folded together with the packaging sheet is formed. The packaging sheet is folded back together with the absorbent article so that the first end portion in the longitudinal direction faces the outside of the individual packaging body. The absorbent article is folded back together at two or three folds extending in the width direction and folded in three or four in the longitudinal direction while being stacked on the inner surface of the packaging sheet. It is preferable that an individual package of the absorbent article is formed. Thereby, the individual package can be formed compactly.

The individual package has a first main surface and a second main surface. In the individual packaging body, the first main surface means the main surface of the individual packaging body on the side where the first end portion of the packaging sheet is present. Further, the packaging sheet extends from the first region located on the first main surface side and including the first end portion, the second region extending from the first region and located on the second main surface side, and extending from the second region. It has a third area located on the first main surface side. In the packaging sheet, it is preferable that the first region overlaps a part of the third region on the first main surface side of the individual packaging body.

The packaging sheet is provided with a sealing tape that maintains the packaging state of the individual packaging. The sealing tape is attached to the first end of the wrapping sheet. Specifically, the sealing tape is attached to the fixing portion attached to the first end of the wrapping sheet and in the longitudinal direction from the first end of the wrapping sheet. It has a knob that extends outward. The knob portion has an adhesive layer on the inner side surface and is detachably attached to the outer surface of the packaging sheet. The knob portion of the sealing tape is detachably attached to the third region of the packaging sheet in the state of an individual package. When releasing the packaging state of the individual packaging body, the knob portion of the sealing tape is peeled off from the outer surface of the packaging sheet, so that the packaging sheet can be unfolded and the absorbent article can be taken out.

The sealing tape is preferably provided only on a part of the packaging sheet in the width direction, and is preferably attached to the central portion of the first end portion of the packaging sheet in the width direction. The length of the sealing tape in the width direction is preferably 20% or less, more preferably 15% or less, further preferably 10% or less, still preferably 3% or more, and preferably 5% or more of the length in the width direction of the packaging sheet. Is more preferable.

The packaging sheet is composed of a plastic film. The plastic film constituting the packaging sheet can be formed of a polyolefin resin such as ethylene and propylene, a polyester resin such as PET, a polyamide resin such as nylon, and a silicone resin. The packaging sheet may be composed of a plurality of layers of plastic films.

The sealing tape is detachably attached to the outer surface of the plastic film packaging sheet by the adhesive layer provided on the inner side surface of the knob portion. In the individual wrapping body in which the knob portion of the sealing tape is attached to the packaging sheet made of plastic film in this way, the adhesive of the knob portion permeates into the plastic film due to aging, temperature change, etc., and the knob portion May stick firmly to the packaging sheet. When the knob portion is firmly fixed to the packaging sheet, when the knob portion is pulled when the individual package is opened, the knob portion does not peel off smoothly from the packaging sheet, and the packaging sheet is easily damaged or deformed. As a result, it may be difficult to use the packaging sheet as a disposal sheet for used absorbent articles.

Therefore, in the individual package of the absorbent article of the present invention, an embossed region is formed on the packaging sheet, and a knob portion of the sealing tape is attached to the embossed region. In the embossed region, the outer surface of the packaging sheet is formed unevenly, and the knob portion of the sealing tape is attached to the embossed region. As a result, the contact area between the adhesive layer of the knob portion and the packaging sheet is suppressed, and the adhesive of the knob portion is less likely to permeate into the packaging sheet made of plastic film due to changes over time or temperature. The knob portion is less likely to firmly adhere to the packaging sheet. Therefore, for example, even if the individual package of the absorbent article is left for a long period of time or placed at a high temperature, the knob portion of the sealing tape can be smoothly peeled off from the package sheet, and the package sheet is less likely to be damaged or deformed. Become.

The embossed region can be formed by embossing the packaging sheet. Specifically, the embossed region of the wrapping sheet is formed by embossing the wrapping sheet as it is without folding back or stacking a plurality of wrapping sheets. By embossing the packaging sheet, irregularities are formed on the outer surface of the packaging sheet. The embossed region may be convex embossed or concave embossed when viewed from the outer surface of the packaging sheet. That is, the packaging sheet may be pressed from the inner side surface to the outer surface by embossing to form convex embossing on the outer surface, or may be pressed from the outer surface to the inner surface by embossing to form concave embossing on the outer surface. You may.

The embossed region is formed so as to overlap at least a part of the knob portion, and may be formed so as to overlap the entire knob portion. The embossed region is preferably formed only on a part of the outer surface of the packaging sheet. For example, it is preferable that the embossed region is not formed on the portion of the packaging sheet to which the fixed portion of the knob portion is attached. As a result, the fixed portion of the knob portion can be firmly fixed to the packaging sheet. It is also preferable that the embossed region is not formed in at least a part of the first region or the second region of the packaging sheet, for example. As a result, when the used absorbent article is wrapped in the wrapping sheet and discarded, the knob portion of the sealing tape is fastened to the place where the embossed region of the wrapping sheet is not formed, so that the used absorbent article can be removed. The state of being wrapped in the packaging sheet can be stably maintained.

It is preferable that both ends of the individually wrapped body of the absorbent article are sealed with sealing portions in the width direction. The sealing portion can be formed by a known joining means such as an adhesive, heat welding, or ultrasonic welding. The surface of the seal portion may be uneven due to heat welding or ultrasonic welding. However, since the seal portion is formed by folding back the packaging sheet and welding a plurality of sheets in a stacked state. It is different from the embossed region where unevenness is formed by one packaging sheet.

The embossed region is preferably formed so as to overlap only a part of the knob portion. By forming the embossed region in this way, a part of the knob portion is attached to the outer surface of the packaging sheet other than the embossed region, and the sealing tape makes it easy to stably maintain the sealed state of the individual packaging body. ..

The pattern of unevenness formed in the embossed region is not particularly limited. It is preferable that the uneven convex portion of the embossed region is not provided on the outer surface of the packaging sheet in a very large area, so that the adhesive provided on the knob portion in the embossed region forms the plastic film of the packaging sheet. The amount of penetration can be suppressed. Therefore, from such a viewpoint, it is preferable that the convex portions of the unevenness of the embossed region are provided in a scattered spot shape or a linear shape. For the convex portions provided in the scattered dot pattern, for example, the size (maximum length) of one convex portion is preferably 0.5 mm or more, more preferably 1 mm or more, and preferably 5 mm or less, and 4 mm. The following is more preferable. The linearly provided convex portion is provided, for example, in a striped or lattice-like pattern, and the width of the linear convex portion is preferably 0.5 mm or more, more preferably 1 mm or more, and preferably 5 mm or less, and 4 mm. The following is more preferable. The linear convex portion may be provided in a continuous linear shape or may be provided in an intermittent linear shape.

The embossed region is preferably formed so that the area ratio of the convex portion of the unevenness is 70% or less when viewed from the outer surface of the packaging sheet. That is, it is preferable that the area ratio of the convex portion in the embossed region is 70% or less when viewed from the outer surface of the packaging sheet. When the embossed region is formed in this way, the amount of the adhesive provided on the knob portion permeating the plastic film of the packaging sheet can be suppressed in the embossed region. The area ratio of the convex portion in the embossed region is more preferably 60% or less, further preferably 50% or less, further preferably 15% or more, more preferably 20% or more, still more preferably 25% or more.

The convex portion of the embossed region is preferably formed by extruding the packaging sheet from the inner side surface to the outer side surface. That is, it is preferable that the convex portion of the embossed region is formed as a convex emboss when viewed from the outer surface of the packaging sheet. If the convex portion is formed on the outer surface of the packaging sheet in this way, the top surface of the convex portion is likely to be formed in a non-planar shape, and the adhesive on the knob portion is less likely to penetrate the plastic film of the packaging sheet. ..

It is preferable that the embossed region is formed so as to overlap the knob portion of the sealing tape and extends outward in the width direction from the knob portion. When the embossed region is formed in this way, when manufacturing an individual package of an absorbent article, even if the position where the sealing tape is attached to the packaging sheet is slightly deviated in the width direction, the knob portion of the sealing tape can be held. It can be installed so as to overlap the embossed area. The embossed region is preferably formed with, for example, a length of 1/4 or more in the width direction of the packaging sheet, more preferably 1/2 or more, and a length of 3/4 or more. It is more preferably formed by. The embossed region is formed so as to extend in the entire width direction of the packaging sheet (that is, extends from one end to the other end in the width direction of the packaging sheet), or is formed in the width direction of the portion excluding the sealing portion of the packaging sheet. It may be formed so as to extend as a whole.

By forming the embossed region only in a specific part of the individual package, it can function as a mark that can be discriminated by a tactile sensation that is not visually observed. For example, if the embossed region is formed on the packaging sheet on the first main surface side of the individual packaging body and not on the packaging sheet on the second main surface side on the opposite side, the individual packaging body can be touched by hand. The first main surface of the above can be easily identified. Further, if the embossed region is formed in the third region and not formed in the first region and the second region, the opening position of the individual package can be easily determined by touching the embossed region as a guide. Can be done.

Even when the embossed region functions as a mark that can be discriminated by tactile sensation as described above, it is preferable that the embossed region is formed as described above. That is, the embossed region is preferably formed so as to extend outward in the width direction from the knob portion, and it is preferable that the convex portion of the unevenness is not provided on the outer surface of the packaging sheet in a wide area, for example, the unevenness. It is preferable that the convex portions of the embossed region are provided in a scattered or linear shape, and the convex portions of the embossed region are preferably formed by being extruded from the inner side surface to the outer surface of the packaging sheet.

An example of the configuration of the individual package of the absorbent article will be described with reference to FIGS. 1 to 4. The present invention is not limited to the embodiments shown in the drawings.

1 and 2 show an example of an absorbent article used in the present invention, and a light incontinence pad is shown as the absorbent article. FIG. 1 shows a plan view of the absorbent article as viewed from the skin surface side, and FIG. 2 shows a cross-sectional view of II-II of the absorbent article shown in FIG. In the drawings, the arrow x represents the width direction, the arrow y represents the longitudinal direction, and the direction perpendicular to the plane formed by the arrows x, y represents the thickness direction z.

The absorbent article 11 shown in FIGS. 1 and 2 has a top sheet 12, a back sheet 13, and an absorber 14 arranged between them. In the absorbent article 11, a mount 15 is provided between the back sheet 13 and the absorber 14, and the mount 15 can improve the shape retention of the absorbent article 11. The mount 15 can be made of crepe paper or non-woven fabric. The mount 15 may not be provided. The absorbent article 11 is worn with the longitudinal direction y aligned with the front-back direction of the wearer's crotch and the width direction x aligned with the left-right direction of the wearer.

It is preferable that side sheets 16 extending in the longitudinal direction y are provided on both sides of the top sheet 12 in the width direction x, and the side sheets 16 form rising flaps 17 that serve as leak-proof walls for urine and the like. The side sheet 16 is provided with an upright elastic member 18 at an inner portion in the width direction x. When the absorbent article 11 is used, the inner portion of the side seat 16 rises toward the wearer's skin due to the contraction force of the standing elastic member 18 to form a flap 17, which prevents lateral leakage of urine or the like. ..

As shown in FIG. 2, it is preferable that the adhesive portion 19 is provided on the outer surface of the back sheet 13. The adhesive portion 19 allows the absorbent article 11 to be suitably attached to the skin surface side of pants or the like. The adhesive portion 19 is preferably detachably joined to the packaging sheet 24 described later.

FIG. 3 shows an example of a method of wrapping the absorbent articles shown in FIGS. 1 and 2 with a wrapping sheet to form an individual package. FIG. 3A shows an absorbent article and a packaging sheet before packaging, and FIG. 3B shows an individual package of the absorbent article. As the individual package of the absorbent article formed as shown in FIG. 3, FIG. 3 (b) shows a plan view of the individual package, and FIG. 4 shows a perspective view of the individual package. ..

The individual wrapping body 21 is formed by wrapping the absorbent article 11 with the wrapping sheet 24. In FIG. 3, the individual packaging body 21 is formed by stacking the absorbent article 11 on the inner side surface of the packaging sheet 24 and folding the absorbent article 11 together with the packaging sheet 24 at the folds F1 and F2. Specifically, in the individual package 21, at least a part of the outer surface of the absorbent article 11 is covered with the packaging sheet 24, and the absorbent article 11 is folded back together with the packaging sheet 24 at folds F1 and F2 extending in the width direction x. As a result, the absorbent article 11 is folded in three in the longitudinal direction y. At this time, it is preferable that the packaging sheet 24 is detachably joined to the adhesive portion 19 provided on the back sheet 13 of the absorbent article 11.

In the individual packaging body 21, it is preferable that both ends of the packaging sheet 24 in the width direction x are sealed with the sealing portions 31. The seal portion 31 can be formed by a known joining means such as an adhesive, heat welding, or ultrasonic welding.

The packaging sheet 24 is made of a plastic film, has a first end portion 25 and a second end portion 26 in the longitudinal direction y, and the first end portion 25 faces the outside of the individual packaging body 21. The first end portion 25 and the second end portion 26 are defined as a range of a predetermined length (for example, a range within 3 cm) from one end or the other end in the longitudinal direction of the packaging sheet 24. The individual package 21 has a first main surface 22 including the first end portion 25 of the packaging sheet 24, and a second main surface 23 on the opposite side thereof (see FIG. 4). The first main surface 22 and the second main surface 23 are classified by a crease F1 and a crease F2, respectively. The packaging sheet 24 includes a first region 27 located on the first main surface 22 side and including the first end portion 25, and a second region 28 extending from the first region 27 and located on the second main surface 23 side. It has a third region 29 extending from the second region 28 and located on the side of the first main surface 22 (see FIG. 3).

The packaging sheet 21 is provided with a sealing tape 32 that maintains the packaging state of the individual packaging body 21. The sealing tape 32 has a fixing portion 33 attached to the first end portion 25 of the packaging sheet 21, and a knob portion 34 extending outward in the longitudinal direction y from the first end portion 25 of the packaging sheet 24. The knob portion 34 has an adhesive layer on the inner side surface, and is detachably attached to the outer surface of the packaging sheet 24 (specifically, the outer surface of the third region 29 of the packaging sheet 24).

The packaging sheet 24 is formed with an embossed region 30 having an uneven outer surface that overlaps with at least a part of the knob portion 34 of the sealing tape 32. In the individual package 21, the knob portion 34 of the sealing tape 32 is detachably attached to the embossed region 30. As a result, the adhesive applied to the inner surface of the knob portion 34 is less likely to permeate the packaging sheet 24 made of plastic film due to changes over time, temperature, etc., and the knob portion 34 is firmly attached to the packaging sheet 24. It becomes difficult to stick to. Therefore, even if the individual package 21 is left for a long period of time or placed at a high temperature, the knob portion 34 is easily peeled off from the package sheet 24, and the package sheet 24 is less likely to be damaged or deformed.

It is preferable that the embossed region 30 is formed so as to overlap the knob portion 34 of the sealing tape 32 and extends outward in the width direction x from the knob portion 34. When the embossed region 30 is formed in this way, even if the position where the sealing tape 32 is attached to the packaging sheet 24 is slightly deviated in the width direction when the individual packaging body 21 is manufactured, the knob portion of the sealing tape 32 is formed. 34 can be attached so as to overlap the embossed region 30.

It is preferable that the embossed region 30 is formed on the packaging sheet 24 on the first main surface 22 side and not on the packaging sheet 24 on the second main surface 23 side. If the embossed region 30 is formed in this way, the embossed region 30 of the packaging sheet 24 is formed on the knob portion 34 of the sealing tape 32 when the used absorbent article is wrapped in the packaging sheet 24 and discarded. By keeping the used absorbent article in the second region 28 which is not used, the state in which the used absorbent article is wrapped in the packaging sheet 24 can be stably held. More preferably, the embossed region 30 is formed in the third region 29 of the packaging sheet 24, and is not formed in the first region 27 and the second region 28. As a result, when the used absorbent article is wrapped in the wrapping sheet 24, the used absorbent article can be kept even if the knob portion 34 of the sealing tape 32 is fastened to either the first region 27 or the second region 28. The state of being wrapped in the packaging sheet 24 can be stably maintained.

The individual package 21 in which the embossed region 30 is formed as described above can also make the embossed region 30 function as a mark that can be discriminated by a tactile sensation that is not visible. For example, if the embossed region 30 is formed only on the first main surface 22 side of the packaging sheet 24, the first main surface 22 of the individual package 21 can be easily identified by touching it with a hand. If the embossed region 30 is not formed in the first region 27 and the second region 28 of the packaging sheet 24 but is formed in the third region 29, the individual packaging body 21 can be touched by hand with the embossed region 30 as a guide. The opening position and the position of the knob portion 34 can be easily determined. Further, from the point that the opening position of the individual package 21 can be easily determined, as shown in FIGS. 3 and 4, the embossed region 30 is formed so as to extend from one end to the other end of the width direction x of the packaging sheet 24. It is also preferable that it is.

The embossed region 30 may be formed so as to overlap with at least a part of the knob portion 34 of the sealing tape 32. In FIGS. 3 and 4, the embossed region 30 is formed so as to overlap the tip of the knob portion 34, and is not formed so as to overlap the side of the knob portion 34 in contact with the fixed portion 33 (hereinafter, referred to as “base side”). .. That is, in the state of the individual package 21, the embossed region 30 is provided apart from the first end portion 25. When the embossed region 30 is provided in this way, when the individual package 21 is opened, the knob portion 34 can be easily peeled off from the packaging sheet 24 by pinching the tip of the knob portion 34 with a finger. Further, since a part of the knob portion 34 is attached to the packaging sheet 24 in a portion other than the embossed region 30, the bonding force between the knob portion 34 and the packaging sheet 24 is secured, and the packaging state of the individual packaging body 21 is stabilized. Can be maintained.

5 to 8 show another example of a plan view of the individual package of the absorbent article as viewed from the first main surface side. 5 and 8 show an example in which the embossed region is formed so as to overlap the entire knob portion of the sealing tape, and FIGS. 6 and 7 show an example in which the embossed region is formed on the knob portion of the sealing tape. An example is shown in which it is formed by overlapping only a part.

As shown in FIG. 5, if the embossed region 30 is formed so as to overlap the entire knob portion 34 of the sealing tape 32, the adhesive applied to the inner surface of the knob portion 34 more penetrates the packaging sheet 24. It becomes difficult, and it becomes difficult for the knob portion 34 to firmly adhere to the packaging sheet 24 due to changes over time, temperature changes, and the like. Further, by pinching the tip of the knob portion 34 with a finger when opening the individual package 21, the knob portion 34 can be easily peeled off from the packaging sheet 24.

In FIG. 6, the embossed region 30 is formed so as to overlap the base side of the knob portion 34 of the sealing tape 32, and is not formed so as to overlap the tip of the knob portion 34. When the embossed region 30 is formed in this way, when the individual packaging body 21 is carried, the tip of the knob portion 34 comes into contact with another article, so that the tip of the knob portion 34 is peeled off from the packaging sheet 24. It is less likely to be rolled up. Further, even when a plurality of individual packages 21 are stacked and stored in a container at the time of manufacturing, the tip of the knob portion 34 comes into contact with the adjacent individual packages 21 to prevent the individual packages 21 from being rolled up. When opening the individual packaging body 21, the knob portion 34 can be easily peeled off from the packaging sheet 24 by floating the first end portion 25 of the packaging sheet 24 from the third region 29 of the packaging sheet 24.

In FIG. 7, the embossed region 30 is formed so as not to overlap the tip end side and the base portion side of the knob portion 34 of the sealing tape 32. That is, the embossed region 30 is provided in the state of the individual packaging body 21 at a distance from the first end portion 25 of the packaging sheet 24 and the tip of the knob portion 34. When the embossed region 30 is formed in this way, the bonding force between the knob portion 34 and the packaging sheet 24 is secured, and the packaging state of the individual packaging body 21 can be stably maintained. Further, when the tip of the knob portion 34 comes into contact with another article, the tip of the knob portion 34 is less likely to be peeled off from the packaging sheet 24 and rolled up. When opening the individual package 21, the knob portion 34 of the sealing tape 32 can be easily peeled off from the packaging sheet 24 by pinching the knob portion 34 from the side surface in the width direction x.

In FIG. 8, the embossed region 30 is formed so as to overlap the entire knob portion 34 of the sealing tape 32. In the embossed region 30, the area ratio of the convex portion is high, that is, the convex portion has a high density based on the area. It has a high-density region 30A formed and a low-density region 30B in which the area ratio of the convex portion is low, that is, the convex portion is formed at a low density on an area basis. The convex portion described here means an uneven convex portion formed in the embossed regions 30A and 30B when viewed from the outer surface of the packaging sheet 24, and the area ratio of the convex portion is the area of the embossed regions 30A and 30B. Means the ratio of the area of the convex portion when 100%. In FIG. 8, the high-density region 30A and the low-density region 30B are formed so as to overlap the knob portion 34, and the low-density region 30B is located closer to the tip end side of the knob portion 34 than the high-density region 30A. If the embossed region 30 is formed in this way, the adhesive applied to the inner surface of the knob portion 34 does not easily penetrate the packaging sheet 24, and the tip of the knob portion 34 is opened when the individual package 21 is opened. By picking the knob portion 34 with a finger, the knob portion 34 can be easily peeled off from the packaging sheet 24. Further, by forming regions in the embossed region 30 in which the area ratios of the convex portions in the unevenness are different, the bonding force of the knob portion 34 with the packaging sheet 24 and the degree of penetration of the adhesive of the knob portion 34 into the packaging sheet 24. Can be adjusted arbitrarily.

In FIG. 8, the embossed region 30 is formed so as to overlap the entire knob portion 34, but as shown in FIGS. 3, 6 and 7, the embossed region 30 overlaps only a part of the knob portion 34. May be formed in. Further, the high-density region 30A may be provided so as to be located closer to the tip end side of the knob portion 34 than the low-density region 30B. The high-density region 30A and the low-density region 30B may be formed by changing the embossing pattern in each region. Further, the convex portion in the high-density region 30A is formed by being extruded from the outer surface of the packaging sheet 24 to the inner surface, and the convex portion in the low-density region 30B is formed by being extruded from the inner side surface of the packaging sheet 24 to the outer surface. May be done. That is, in the embossed region 30, the high-density region 30A can be formed by concave embossing, and the low-density region 30B can be formed by convex embossing. If the high-density region 30A and the low-density region 30B are formed in this way, the adhesive of the knob portion 34 more penetrates the packaging sheet 24 in the low-density region 30B due to the difference in the flat state of the top surface of the convex portion. It can be made difficult, and in the high-density region 30A, it becomes easy to secure the bonding force of the knob portion 34 to the packaging sheet 24.

As shown in FIG. 3, the embossed region 30 is preferably provided so as to overlap only a part of the knob portion 34 and overlap with the tip of the knob portion 34. By forming the embossed region 30 in this way, the packaged state of the individual package 21 can be stably maintained, and when the individual package 21 is opened, the tip of the knob portion 34 is fingered. By pinching, the knob portion 34 can be easily peeled off from the packaging sheet 24.

In the drawing, the convex portions of the embossed region 30 are provided in a scattered dot pattern, but the forming pattern of the convex portions is not limited to that shown in the drawing, and may be an arbitrary pattern such as a stripe shape or a grid line shape. Can be provided.

11: Absorbent article 12: Top sheet 13: Back sheet 14: Absorber 21: Individual packaging (of absorbent article) 22: First main surface 23: Second main surface 24: Packaging sheet 25: First end 26: 2nd end 27: 1st region 28: 2nd region 29: 3rd region 30: Embossed region, 30A: High density region, 30B: Low density region 31: Sealing part 32: Sealing tape 33: Fixing part 34: Knob part

Claims (9)

The absorbent article is an individual package of the absorbent article wrapped in a packaging sheet.
The absorbent article is stacked on the inner surface of the packaging sheet and folded together with the packaging sheet.
The packaging sheet is made of a plastic film, has a first end on one side in the longitudinal direction and a second end on the other side, and the first end faces the outside of the individual packaging.
The packaging sheet is provided with a sealing tape for maintaining the packaging state of the individual packaging body, and the sealing tape includes a fixing portion attached to the first end portion of the packaging sheet and the packaging sheet. It has a knob portion extending outward in the longitudinal direction from the first end portion, and the knob portion has an adhesive layer on the inner side surface and is detachably attached to the outer surface of the packaging sheet.
An individual package of an absorbent article, wherein the packaging sheet is formed with an embossed region having an uneven outer surface that overlaps with at least a part of the knob portion. The individual package has a first main surface including the first end portion and a second main surface on the opposite side thereof.
The individual package of an absorbent article according to claim 1, wherein the embossed region is formed on the packaging sheet on the first main surface side and is not formed on the packaging sheet on the second main surface side. The packaging sheet includes a first region located on the first main surface side and including the first end portion, a second region extending from the first region and located on the second main surface side, and the first region. It has a third region that extends from the two regions and is located on the first main surface side.
The individual package of an absorbent article according to claim 2, wherein the embossed region is formed in the third region and is not formed in the first region and the second region. The individual package of an absorbent article according to any one of claims 1 to 3, wherein the embossed region is formed so as to overlap only a part of the knob portion. The individual package of the absorbent article according to claim 4, wherein the embossed region is formed so as to overlap the tip of the knob portion. The embossed region has a high-density region in which the area ratio of the convex portion of the unevenness is high and a low-density region in which the area ratio of the convex portion of the uneven portion is low when viewed from the outer surface of the packaging sheet.
The high-density region and the low-density region are formed so as to overlap the knob portion, and the low-density region is located closer to the tip end side of the knob portion than the high-density region according to any one of claims 1 to 5. Individual packaging of the listed absorbent article. The absorbency according to any one of claims 1 to 6, wherein the embossed region is formed so that the area ratio of the convex portion of the unevenness is 70% or less when viewed from the outer surface of the packaging sheet. Individual packaging of goods. The individual piece of the absorbent article according to any one of claims 1 to 7, wherein the embossed region is provided with convex portions of the unevenness in a scattered or linear shape when viewed from the outer surface of the packaging sheet. Packaging body. The embossed region extends outward in the width direction from the knob portion, and is formed in a length of 1/4 or more in the width direction of the packaging sheet according to any one of claims 1 to 8. Individual packaging of the listed absorbent article.

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