JP2021052962A - Packaged absorbent article - Google Patents

Abstract

To provide a packaged absorbent article which reduces unpleasant feeling caused by a peeling sound by sufficiently reducing the peeling sound in opening.SOLUTION: The packaged absorbent article includes a packaging sheet and an absorbent article wrapped by the packaging sheet. The packaging sheet includes a first region which is folded at a first folding line and includes one end in a longitudinal direction and a second region which is folded at a second folding line and includes the other end in the longitudinal direction, and the first region is overlapped with the second region. In both edge parts in a width direction perpendicular to the longitudinal direction, a seal part including a plurality of joining parts is formed. The packaged absorbent article includes a grip part in a position deviated from a center in the width direction in the first region.SELECTED DRAWING: Figure 1

Description

The present invention relates to a package absorbent article.

Absorbent articles such as sanitary napkins, incontinence pads, and pantyliners (pantyliner sheets) are used as absorbent articles (wrapping absorbent articles) packaged with packaging sheets for hygiene and for convenience of carrying. It is common to be provided. As the packaging absorbent article, for example, an elongated packaging sheet is wound together with the absorbent article at least in the longitudinal direction and folded in three, and both edges in the width direction of the packaging sheet are joined by heat sealing or the like to form a sealing portion. There are many things that are done.

When opening such a package absorbent article, the user needs to release the joint of the seal portion at both edges. At that time, a sound of peeling the packaging sheet (peeling sound) is generated at the seal portion, and such a sound may be unpleasant depending on the user. Therefore, a device for not causing discomfort to the user, such as reducing the loudness of the peeling sound, has been studied.

For example, Patent Document 1 describes a configuration in which a weak joint portion 41 and a strong joint portion 42 are formed in this order from the central portion side to the outer side of the individual body 1 in the seal portion 4. There is. It is described that this configuration facilitates opening and reduces peeling noise.

However, even with the configuration disclosed in Patent Document 1, the total area of the joints to be released at the time of opening does not change. Therefore, the peeling sound may not be sufficiently reduced depending on the situation at the time of opening, the peeling method of the user, and the like.

Japanese Patent No. 4275105

In view of the above points, it is an object of one aspect of the present invention to provide a package absorbent article in which the peeling sound at the time of opening is sufficiently reduced and the discomfort due to the peeling sound is reduced.

A first aspect of the present invention is a packaging absorbent article including a packaging sheet and an absorbent article packaged by the packaging sheet, wherein the packaging sheet is folded at the first folding line in the longitudinal direction. It has a first region including one end and a second region including the other end in the longitudinal direction folded by the second folding line, and the first region is overlapped with the second region and orthogonal to the longitudinal direction. Seal portions including a plurality of joint portions are formed on both edge portions in the width direction, and the grip portion is provided at a position deviated from the center in the width direction of the first region.

According to the first aspect, since the grip portion is provided at a position deviated from the center in the width direction, when the user holds the grip portion and lifts and pulls the first region when opening the package absorbent article, the grip portion is gripped. The seal portion formed on the edge portion closer to the portion is preferentially released from the joint, and a relatively large number of seal portions formed on the edge portion farther from the grip portion can be maintained without being released from the joint portion. Therefore, the total area of the sealed portion to be unbonded in the opening operation can be made smaller than that of the conventional packaging absorbent article. As a result, the peeling sound at the time of opening can be reduced, and the discomfort that may be caused by the discomfort can be reduced.

In the second aspect of the present invention, the grip portion is a tab tape attached so as to straddle the boundary between the first region and the second region.

According to the second aspect, by using the tab tape as the gripping portion, the packaging sheet can be easily held and peeled off at the time of opening. Further, since the first region is fixed to the second region by the tab tape, it is possible to prevent the first region from shifting before opening and the package absorbent article from being unintentionally opened.

In the third aspect of the present invention, the seal portion includes a first seal portion formed on an edge portion closer to the grip portion and a second seal portion formed on an edge portion farther from the grip portion. The joint portion included in the first seal portion has an elongated plan view shape in which the outer side in the width direction is inclined and extends so as to approach the first fold line in the width direction.

In the opening operation of the package absorbent article, first, the first region arranged on the outside is rolled up in the direction toward the first fold line and peeled off. At this time, at the edge where the seal portion is formed, the boundary line between the portion where the packaging sheet has not been peeled off and the portion where the packaging sheet has already been peeled off is not horizontal with respect to the width direction, but the inside in the width direction is the first 1 Follow a sloping line so that it approaches the fold line. Then, when the seal portion is viewed locally, the packaging sheet is peeled off along a direction orthogonal to this boundary line, that is, a line inclined so that the outer side in the width direction approaches the first fold line.

According to the third aspect, the joint portion included in the first seal portion formed at the edge portion close to the grip portion is elongated so as to be inclined so that the outer side in the width direction approaches the first folding line. It has a plan view shape, and the extending direction of the joint portion is along the direction in which the above-mentioned packaging sheet is peeled off (peeling direction). As a result, at least in the first seal portion, the continuity of the peeling progress of the joint portion is enhanced along the peeling direction, and the joint release of the sealed portion can be continuously performed. Therefore, the generated peeling sound is less likely to be heard.

In the fourth aspect of the present invention, in the first seal portion, the angle of the extending direction of the joint portion near the first fold line with respect to the width direction is far from the first fold line. A portion larger than the angle with respect to the width direction in the existing direction is included.

In the opening operation of the packaging absorbent article, the direction of the boundary line between the part where the packaging sheet has not been peeled off and the part after it has already been peeled off, and the peeling direction of the packaging sheet orthogonal to the boundary line gradually change. .. More specifically, in the first sealing portion, as the opening operation progresses, the inclination in the width direction in the direction of the boundary line gradually decreases, and the inclination in the width direction in the peeling direction of the packaging sheet gradually increases.

According to the fourth aspect, in the first seal portion, the extending direction of the joint portion near the first fold line is more than the extending direction of the joint portion far from the first fold line with respect to the width direction. It has a large angled part. Therefore, the change in the longitudinal direction of the extending direction of the joint portion can correspond to the change in the peeling direction of the packaging sheet. Therefore, even if the opening operation progresses and the peeling direction of the packaging sheet changes at least partially in the first sealing portion, the continuity of the peeling progress is maintained along the peeling direction, and the sealing portion is released from the joining in the opening operation. Can be performed continuously. For this reason, the generated peeling sound is less likely to be heard.

In the fifth aspect of the present invention, the joint portion included in the second seal portion is an elongated flat surface extending so as to be inclined so that the outer side in the width direction approaches the first fold line in the width direction. It has a visual shape.

According to the fifth aspect, the joint portion included in the second seal portion formed at the edge portion far from the grip portion has an elongated plan view shape, and the extending direction is along the peeling direction of the packaging sheet. ing. Therefore, the continuity of the peeling progress of the joint portion is enhanced along the peeling direction, and even when the second seal portion is released from the joint, the joint release of the seal portion is continuously performed as in the case of the first seal portion. be able to. Therefore, in this embodiment, it is possible to make it difficult for the peeling sound generated from the second seal portion to be heard.

In the sixth aspect of the present invention, in the second seal portion, the angle of the extending direction of the joint portion near the first fold line with respect to the width direction is the extension of the joint portion far from the first fold line. A portion smaller than the angle with respect to the width direction in the existing direction is included.

In the second seal portion far from the grip portion, particularly at the initial stage of the opening operation, that is, when the region near the free end of the first region is peeled off, the portion where the packaging sheet has not been peeled off and the portion after it has already been peeled off. The direction of the boundary line and the peeling direction of the packaging sheet orthogonal to the boundary line gradually change. More specifically, the second seal portion is a portion in which the inclination in the width direction in the direction of the boundary line gradually increases and the inclination in the width direction in the peeling direction of the packaging sheet gradually decreases as the opening operation progresses. Has.

According to the sixth aspect, in the second seal portion, the extending direction of the joint portion near the first fold line is more than the extending direction of the joint portion far from the first fold line with respect to the width direction. It has a small angled part. Therefore, the change in the longitudinal direction of the extending direction of the joint portion can correspond to the change in the peeling direction of the packaging sheet. Therefore, even if the opening operation progresses and the peeling direction of the packaging sheet changes, the continuity of the peeling progress of the joint portion along the peeling direction is maintained at least partially in the second seal portion, and the seal is sealed throughout the opening operation. It is possible to continuously release the joints of the parts. For this reason, the generated peeling sound is less likely to be heard.

According to one aspect of the present invention, there is provided a package absorbent article in which the peeling sound at the time of opening is sufficiently reduced and the discomfort due to the peeling sound is reduced.

It is a top view which shows the package absorbable article by one form of this invention. It is sectional drawing of FIG. It is a figure for demonstrating the opening operation of the package absorbent article by one embodiment of this invention. It is a figure for demonstrating the opening operation of the package absorbent article by one embodiment of this invention. It is a figure which shows the modification of the grip part. It is a figure which shows the modification of the seal part. It is a figure which shows the modification of the shape of the joint part included in the seal part.

Hereinafter, embodiments of the present invention will be described 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 the description thereof may be omitted. In addition, the drawings are schematic to help the understanding of the invention.

(Packaging absorbent goods)
FIG. 1 shows a package absorbent article 100 according to one embodiment of the present invention. Further, FIG. 2A shows a cross-sectional view taken along the line Ia-Ia of FIG. 1, and FIG. 2B shows a cross-sectional view taken along the line Ib-Ib of FIG.

As shown in FIGS. 1 and 2, the package absorbent article 100 includes a packaging sheet 10 and an absorbent article 1 packaged by the packaging sheet 10. In other words, the package absorbent article 100 is an individual package containing one absorbent article 1 inside. The packaging sheet 10 may have an elongated shape, for example, a rectangular shape, an oblong shape, or the like. The dimensions of the packaging sheet 10 depend on the size and shape of the absorbent article 1 to be packaged. For example, when the packaging sheet 10 is unfolded, the length in the longitudinal direction D1 is 120 to 500 mm and the length in the width direction D2 (simply). (Sometimes referred to as width) can be 20 to 200 mm. Further, the length of the package absorbent article 100 in the folded state in the longitudinal direction D1 may be 50 to 160 mm.

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

When a resin film is used for the packaging sheet 10, examples of the resin used include polyolefins such as polypropylene and polyethylene, polyester, and polyvinyl alcohol. 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 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 fibers constituting the non-woven fabric may be polyolefins such as polypropylene and polyethylene, polyamides such as polyester and nylon, and the like. Further, the surface of the non-woven fabric and / or the fibers contained in the non-woven fabric may be treated with hydrophilicity or hydrophobicity.

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 can be imparted. In the present specification, the term "paper" can refer to a flat plate made by sticking plant fibers or other fibers with an adhesive. 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, examples of the specific paper used for the wrapping sheet 10 include various types of paper such as Western paper, Japanese paper, processed paper, and synthetic paper. 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 paper is used as the material of the wrapping sheet 10, the wrapping sheet 10 is made of tissue paper having a low basis weight so that it can be easily folded when the absorbent article is wrapped and the state after being wrapped can be easily maintained. be able to. The thin paper may be thin imitation paper, Indian paper, rice paper (used as cigarette wrapping paper, etc.), glassine paper, tissue paper, toilet paper, filter paper, or the like. Further, the packaging sheet 10 may be processed after papermaking. Examples of the above-mentioned processing include crepe processing, embossing processing, calendar processing, water-repellent processing (including peeling processing described later), slit processing, ply processing, printing processing and the like. By performing crepe processing or embossing processing, both strength and flexibility can be improved. When the packaging sheet 10 is water-repellent, for example, a water-repellent agent containing a silicone-based resin, a paraffin-based resin, a fluororesin, or the like is applied to the outer surface of the packaging sheet 10 (with the absorbent article 1 packaged). It can be applied to at least one of the exposed side) and the inner surface opposite to the outer surface.

When paper is used as the material of the wrapping sheet 10, the basis weight of the wrapping sheet is preferably 50 g / m ² or less, more preferably 40 g / m ² or less, still more preferably 30 g / m ² or less, 20 g / m ² or less. It can be 11 g / m ² or less and 8 g / m ² or less. The lower limit of the basis weight of the packaging sheet 10 is not particularly limited as long as it can function as the packaging sheet 10, but it can be preferably 5 g / m ² or more, and more preferably 10 g / m ² or more. The thickness of the paper packaging sheet 10 can be preferably 40 to 200 μm, more preferably 100 to 200 μm.

As the wrapping sheet 10, one wrapping sheet 10 may be a single-layer sheet made of the above-mentioned materials, 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.

The packaging absorbent article 100 is obtained by placing the absorbent article 1 on the expanded packaging sheet 10 and folding the area including the end portion of the packaging sheet 10 toward the side on which the absorbent article 1 is placed. Can be done. In the form of FIGS. 1 and 2, the packaging sheet 10 is wound in the longitudinal direction D1 of the packaging sheet 10 and folded in three together with the absorbent article 1 placed on the packaging sheet 10. More specifically, the first region R1 including one end 11 of the longitudinal direction D1 of the packaging sheet 10 is folded at the first folding line FL1, and the second region R2 including the other end 12 of the longitudinal direction D1 of the packaging sheet 10 is folded. It is folded at the second folding line FL2. Then, at the time of folding, the first region R1 is arranged so as to overlap the second region R2. In this embodiment, the region between the first region R1 and the second region R2 is referred to as the third region R3.

In the package absorbent article 100, both edges in the width direction D2 are joined in a state of being rolled and folded in three as described above, and the sealing portions 21 and 22 (collectively referred to as the sealing portion 20) are joined to each edge portion. In some cases) is formed. The packaging sheets laminated and joined in the seal portion 20 can be peeled off from each other. Here, in the present specification, "peelable" means that when the user opens the package-absorbent article 1 by a usual method, the sealing portion 20 is broken, that is, the bonded packaging sheets 10 are peeled off from each other. It means that it is supposed to do.

The seal portion 20 is an aggregate of joint portions (detailed later) when viewed microscopically. The joint portion is a portion in which the packaging sheets are welded and integrated by applying pressure and / or heat from one side or both sides of the plurality of stacked packaging sheets. Such a sealing portion 20 can be formed by a sealing method such as a heat seal or an ultrasonic seal, and preferably can be formed by a heat seal. Further, the seal portion 20 can also be formed by interposing an adhesive such as a hot melt adhesive.

The absorbent article 1 is housed in the package absorbent article 100 over the longitudinal direction D1, but is housed so as not to overlap both edges in the width direction D2 as shown in FIGS. 1 and 2B. Has been done. That is, the absorbent article 1 does not exist between the end portion in the width direction D2 and the position separated by a predetermined length. Therefore, at the edge of the packaging absorbent article 100, the plurality of packaging sheets 10 are directly laminated and joined (FIG. 2B). In FIG. 2B, the seal portion 21 (20) formed by a heat seal or the like is not shown.

The seal portion 20 may be preferably formed within a range of 25 mm from the end of the packaging sheet 10 in the width direction D2. Further, the seal portion 20 may be formed over the entire or part of the above range, and can be formed, for example, in the above range in the form of one or more strips having a width of 5 mm or more and less than 25 mm. Therefore, there may be a portion where the joint portion does not exist in the region having a predetermined width from the end of the packaging sheet 10 in the width direction D2. Further, the width of each of the seal portions 20 is not constant over the longitudinal direction D1 as a whole, and may vary slightly. The width of the seal portion 20 can be the length from the outermost end to the innermost end in the width direction D2 of the joint portion included in the seal portion 20.

(Grip part)
When opening the package absorbent article 100 as shown in FIGS. 1 and 2, the user first opens the first region R1 arranged on the outside toward the first folding line FL1 side, and opens the first region R1. The step of peeling from the second region R2 is performed. At that time, the user usually grasps the vicinity of the free end of the first region R1, that is, the vicinity of one end 11 of the packaging sheet 10 with one hand, and lifts and pulls the first region R1. At that time, the package absorbent article 100 is provided with a grip portion so that the user can easily grip the first region R1.

In the form shown in FIG. 1, a tab tape 15A is provided as a grip portion. The tab tape 15A is attached over the first region R1 and the second region R2 so as to straddle the free end of the first region R1, that is, one end 11 of the packaging sheet 10. Further, a tab portion 15Aa that is not attached to the second region R2 is formed at the end portion of the tab tape 15A on the side that overlaps with the second region R2. The tab portion 15Aa may be formed by folding back the end portion of the tab tape 15A on the second region R2 side.

When peeling off the first region R1, the user can grasp and pull up the tab portion 15Aa of the tab tape 15A. As a result, the tab tape 15A is peeled off from the second region R2, and when the tab tape 15A is further pulled, the first region R1 is pulled up together with the tab tape 15A. By providing the tab tape 15A in this way, the first region R1 to be peeled off can be reliably grasped and lifted, and the opening operation becomes easier.

Further, in the state before opening, the first region R1 can be lightly fixed to the second region R2 by the tab tape 15A, so that the first region R1 slides away from the second region R2 before opening and is intended. It is possible to prevent the package absorbent article 100 from being opened. In addition, it is possible to prevent dust and the like from entering.

In the form shown in FIG. 1, the tab tape 15A, which is the grip portion, is not arranged at the center of the width direction D2, but is arranged offset from the center of the width direction D2. In other words, the tab tape 15A is arranged so as to deviate from the center line of the package absorbent article 100, that is, the center line CL extending in the longitudinal direction D1 passing through the center of the width direction D2 of the packaging sheet 10. In the form of FIG. 1, although it is shifted to the left side in the drawing, it may be shifted to the right side.

When the tab tape 15A (grip portion) is deviated from the center of the width direction D2 as in the present embodiment, when the user holds the grip portion and peels off the first region R1, a force applied to the edge portion in the width direction D2 is applied. It becomes asymmetrical, and the way the seals formed on the edges are disjointed differs between the left and right edges. In this embodiment, the seal portion closer to the tab tape 15A (grip portion) is referred to as the first seal portion 21, and the seal portion farther from the tab tape 15A (grip portion) is referred to as the second seal portion 22.

As shown in FIG. 3A, when the tab tape 15A is lifted and the first region R1 is pulled, the pulling force is more likely to be affected by the first seal portion 21 closer to the tab tape 15A. That is, a larger force is likely to be applied to the first seal portion 21 than to the second seal portion 22. Therefore, the first region R1 is pulled preferentially in the first seal portion 21 rather than the second seal portion 22, and the joining release is started first. Then, the direction in which the first region R1 is pulled is not a direction parallel to the longitudinal direction D1, but a direction tilted toward the second seal portion 22 (for example, a direction diagonally upward to the right in FIG. 3A), and the tilt gradually increases. Becomes larger. When going further pulling the first region R1, as shown in FIG. 3B, the boundary line B _{1 (the} package sheet 10 is already loosened portion in the longitudinal direction D1 of the first seal portion 21 yet been peeled position of the boundary line) between the free portion is increasingly closer to the first folding line FL1 side, the difference between the position of the border line B ₂ in the second seal portion 22 is opened.

Therefore, at the time when the step of peeling off the first region R1 which is the first step at the time of opening is completed, in the second seal portion 22, a part of the first region R1, for example, 40 of the length of the first region R1. % Or more, 50% or more, 60% or more, 70% or more, and in some cases, all are maintained without being disjointed. Therefore, the length and area of the second seal portion 22 to be unbonded by the step of peeling off the first region R1 are smaller than those of the conventional packaging absorbent article in which the grip portion is provided in the center of the width direction D2. As a result, the number of joints to be released from the second seal portion 22 is reduced, so that the number of joints to be released from the joint can be reduced and the generated peeling noise can be reduced in the entire seal portion.

When the absorbent article 1 housed inside appears by pulling and turning the first region R1 (FIGS. 3A and 3B), the user holds the end portion of the absorbent article 1 in the longitudinal direction. Then, the absorbent article 1 can be pulled and taken out from the packaging sheet 10. As described above, in this embodiment, the absorbent article 1 can be easily taken out. When the absorbent article 1 is taken out, a part or the whole of the second seal portion 22 which has not been unbonded may or may not be unbonded.

Further, when opening the package absorbent article, the user holds the grip portion (tab tape 15A) with one hand, and holds the portion where the second region R2 and the third region R3 are folded with the other hand. Pull in opposite directions. At that time, the other hand grips the second region R2 and the third region R3 so as to sandwich the package absorbent article 100 between the thumb and the other fingers at a portion close to the folding line FL2, but the first region R1 Since it is necessary to hold the thumb firmly so as to face the pulling force, the thumb is often arranged near the center of D2 in the width direction. Here, if the tab tape 15A is provided near the center of D2 in the width direction, the thumb of one hand holding the tab tape 15A and the thumb of the other hand are likely to collide with each other, so that the thumb of the other hand is inevitably at the end. It has to be arranged (the part closer to the second folding line FL2). On the other hand, according to this embodiment, since the tab tape 15A is provided so as to be offset from the center of D2 in the width direction, it is difficult for the thumbs of both hands to collide with each other. The center of the second region R2 and the third region R3 in the width direction D2 can be reliably gripped. This makes it possible to perform the opening operation more easily and more reliably.

The position where the grip portion is provided is appropriately determined depending on the size of the package absorbent article 100, the material of the packaging sheet 10, the method of forming the seal portion, and the like, but the grip portion is from the center of the width direction D2 to the half width of the packaging sheet 10. It can be arranged at a position shifted by a length of preferably 20 to 85%, more preferably 40 to 70%. Is preferable. That is, when the center of the width direction D2 is 0 and the end portion of the width direction D2 is 100, the center of the grip portion in the width direction D2 is preferably arranged at positions of 20 to 85 and 40 to 70. it can. More specifically, it is preferable that the grip portion or the center line of the grip portion along the longitudinal direction D1 is arranged so as to be overlapped at the above-mentioned deviated position. By setting the above value indicating the position of deviation from the center of the grip portion in the width direction D2 with respect to the half width of the packaging sheet to 20% or more, the first seal portion 21 is preferentially disjointed and the second seal portion 22 is disjointed. The peeling noise can be satisfactorily reduced by reducing the portion to be pressed. On the other hand, by setting the above value to 85% or less, the stability of the operation when the grip portion is held and pulled can be ensured. In particular, when the grip portion is the tab tape 15A (FIG. 1), it is possible to prevent the resistance force applied to the tab tape 15A from increasing on one side in the width direction D2 and prevent only the tab tape 15A from peeling off. .. Further, when the grip portion is the protruding portion 15B (FIG. 4A, which will be described later), it is easy to insert a finger between the first region R1 and the second region R2, and the grip portion can be easily pinched.

(Modification example of grip part)
In the example shown in FIG. 1, the grip portion was the tab tape 15A, but the grip portion is arranged so as to be offset from the center in the width direction D2, and the user grips and pulls the grip portion to lift the first region R1. The form is not particularly limited as long as it is configured so that it can be peeled off.

FIG. 4 shows a modified example of the grip portion. As shown in FIG. 4A, the grip portion may be, for example, a protruding portion 15B in which the free end (one end 11 of the packaging sheet 10) of the first region R1 is projected in the longitudinal direction D1. Further, as shown in FIG. 4B, it is formed by locally embossing the packaging sheet at the free end of the first region R1 or by laminating layers of the same or different materials on the packaging sheet. It may be the structure change part 15C. In any of the examples of FIGS. 4A and 4B, the first region R1 and the second region R2 can be temporarily attached with a weak adhesive or an adhesive. As a result, it is possible to prevent the first region R1 from sliding from the second region R2 and being unintentionally opened before use, and to prevent dust and the like from entering between the first region R1 and the second region R2. be able to.

The grip portion may only be provided with a mark so that the user can recognize it as the grip portion, depending on the configuration, use, and the like of the package absorbent article.

In this embodiment in which the grip portion is formed so as to be offset from the center of the width direction D2 to the left side, the grip portion is held by the right hand, and the second region R2 and the third region R3 are overlapped with each other by the left hand to open the package. Suitable for when to do. On the other hand, when the grip portion is held by the left hand and the portion where the second region R2 and the third region R3 are overlapped is held by the right hand, the grip portion is on the side opposite to the position shown in FIGS. 1 to 4, that is, It is preferable that the D2 is provided so as to be offset to the right from the center in the width direction. In the configuration including the grip portion shifted to the right from the center of D2 in the width direction, the positions of the first seal portion 21 and the second seal portion 22 are opposite to those in FIGS. A second seal portion 22 is formed on the left side of the seal portion 21.

(Seal part and joint part)
The seal portion 20 (first seal portion 21 and second seal portion 22) can include a plurality of joint portions as described above. The plan-view shape of the joint portion is not particularly limited, but in this embodiment, it can be an elongated shape. Further, when the plan view shape of the joint portion included in the seal portion 20 is an elongated shape, the extending direction of the joint portion ( _{may be represented by reference numerals L, L 1} , and L ₂ in the drawing) is the width direction. It is preferable that the D2 is inclined and extends so as to approach the first folding line FL1. The extending direction of the joint portion is the direction in which the line passing through the center of the width of the elongated joint portion extends, and can be said to be the longitudinal direction of the joint portion.

For example, as shown in FIG. 1, the joint portion 23 included in the first seal portion 21 is inclined with respect to the width direction D2 so that the outside of the width direction D2 in the extending direction approaches the first folding line FL1. There is.

In the opening operation of the package absorbent article 100, first, the first region R1 arranged on the outside is rolled up in the direction toward the first folding line FL1 and peeled off (FIG. 3A). At this time, at the edge portion where the seal portion 20 is formed, the boundary line between the portion where the packaging sheet 10 has not been peeled off and the portion where the packaging sheet 10 has already been peeled off (the boundary lines B ₁ and the first in the first seal portion 21). boundary B ₂₎ in the second seal portion 22 is not horizontal to the width direction D2, along a line in the width direction D2 inner inclined so as to approach the first folding line FL1 (Figure 3A). When viewed sealing portion 20 locally, the direction the packaging sheet 10 is peeled off (peeling direction, the direction P ₁ in the first seal portion _21, the second seal portion 22 Oite the direction P ₂₎ is The direction orthogonal to the boundary line, that is, the direction along which the outside of the width direction D2 is inclined so as to approach the first folding line FL1.

Here, the outer side of the joint portion 23 included in the first seal portion 21 in the width direction D2 is inclined so as to approach the first fold line FL1 with respect to the width direction D2, so that the joint portion 23 extends. it can be along the direction to the peeling direction P ₁ described above. As a result, the continuity of the peeling progress in the first seal portion 21 is enhanced. That is, more the portion to be peeled off continuously along the peeling direction P ₁ in one of the joint portion. Further, the peeling at the junction portion 23 along the peeling direction P ₁ is, rather than proceeds as peeling of the next junction after the end of the peeling of the first bonding portion is started, the peeling of the first bonding portion The process proceeds so that the peeling of the next joint portion begins before the end. Therefore, since the peeling at the plurality of joint portions proceeds continuously rather than intermittently, the peeling of the joint portion 23 at the first seal portion 21 proceeds as if there is a long joint portion. In this way, since the continuity of the peeling progress within one joint portion and at the plurality of joint portions can be enhanced, the joint release of the first seal portion 21 can be continuously performed, which occurs. The peeling sound is less likely to be heard.

The second seal portion 22 is also joined when the outside of the joint portion 24 included in the second seal portion 22 in the width direction D2 is inclined so as to approach the first folding line FL1 with respect to the width direction D2. it can be along the extending direction of the portion 24 in the direction of peeling P ₂ described above. Thus, when the second sealing portion 22 is released junction continuity of peeling progression of the joint portion 24 is enhanced along the peeling direction P _2. That is, as in the description of the first seal portion 21, the peeling proceeds continuously within one joint portion and at the plurality of joint portions, so that the second seal portion 22 is continuously released from the joint. And the peeling sound that is generated is less likely to be heard.

The inclination angle of the joint portions 23 and 24 in the extending direction with respect to the width direction D2 can be 10 to 80 °, preferably 20 to 70 °. As will be described later, when the inclination angle differs depending on the position in the longitudinal direction D1, it is preferable that the inclination angles of the joint portions 23 and 24 near the center of the longitudinal direction D1 of the first region R1 are as described above.

FIG. 5 shows a modified example of the joint portion of the seal portion 20. 5 (a) is a plan view of the entire absorbent article 100 according to a modified example, and FIGS. 5 (b) to 5 (e) are partially enlarged views of the seal portion. The basic structure of the absorbent article 100 shown in FIG. 5 is the same as that shown in FIG. 1, but the configurations of the sealing portions 20 (first sealing portion 21 and second sealing portion 22) are different. That is, also in the example of FIG. 5, each seal portion 20 includes a plurality of joint portions having an elongated shape in a plan view, and the extending direction of each joint portion is inclined with respect to the width direction D2, but the inclination thereof. Depends on the location of the joint.

For example, as shown in FIG. 5 (a), in the first seal portion 21, an angle alpha ₁ relative to the width direction D2 in the extending direction L ₁ of the joint portion 23 is different from the position in the longitudinal direction D1. More specifically, in the first seal portion 21, the angle of the extending direction of the joining portion 23b near the first folding line FL1 with respect to the width direction D2 is the extending direction of the joining portion 23a far from the first folding line FL1. Is larger than the angle with respect to D2 in the width direction (FIGS. 5 (b) and 5 (c)). FIGS. 5 (b) and 5 linear _{X 0} in (c) refers to a straight line parallel to the width direction D2.

Here, referring to FIGS. 3A and 3B again, for example, in the first seal portion 21, as the opening operation of the packaging absorbent article 100 progresses, the packaging sheet 10 is not peeled off and the packaging sheet 10 is already peeled off. The direction of the boundary line B _{1 with the portion and the peeling direction P 1} of the packaging sheet orthogonal to the boundary line B ₁ change. More specifically, the first seal portion 21, as the opening operation proceeds, the direction of the border line B _1, slope gradually decreases with respect to the width direction D2, the width direction D2 of the peeling direction P ₁ of the package sheet 10 The slope with respect to is gradually increased (FIGS. 3A and 3B).

Therefore, as shown in FIGS. 5 (a) to 5 (c), in the first seal portion 21, the inclination angle of the joint portion 23b near the first fold line FL1 with respect to the width direction D2 in the extending direction is set to the first fold line. by set larger than the inclination angle with respect to the width direction D2 extending direction of the distant junction 23a from FL1, a change in the inclination of the extending direction L ₁ of the joint portion 23, the peeling direction P ₁ associated with the progress of the unsealing operation Can be adapted to changes in. Thus, opening operation progresses, even peeling direction P ₁ is changed, continuity at the peeling direction P ₁ of the joint portion 23 is maintained, it is carried out continuously bonded release of the first seal portion 21 Can be done. Then, the tendency that the peeling sound generated is interrupted is reduced, the peeling sound is less likely to be heard, and the discomfort that may be caused by the peeling sound can be reduced.

Also in the second seal portion 22, inclined to the extension of the joint portion extension direction L ₂ in the width direction D2, the inclination angle alpha ₂ may be different depending on the location of the joint portion.

_{Also in the second sealing portion 22, the direction of the boundary line B 2} between the portion where the packaging sheet 10 has not been peeled off and the portion where the packaging sheet 10 has already been peeled off _{, and the peeling direction P 1} of the packaging sheet 10 orthogonal to the boundary line B _2. Gradually changes (FIGS. 3A and 3B). In the case of the second sealing portion 22, particularly in the initial stage of the opening operation, that is, in the region near the free end of the first region R1 (one end 11 of the longitudinal direction D1 of the packaging sheet 10), as the opening operation progresses. , the direction of the border line B _2, slope gradually increases the width direction D2, slope gradually decreases with respect to the width direction D2 of the peeling direction P ₂ of the package sheet 10. _{The change in the direction of the boundary line B 2} and the peeling direction P ₂ of the second sealing portion 22 especially at the initial stage of opening is different from the change _{in the boundary line B 1} and the peeling direction P ₂ in the first sealing portion 21. There is.

Therefore, as shown in FIG. 5A, in the second seal portion 22, the angle of the extending direction of the joint portion 24b near the first fold line FL1 with respect to the width direction D2 is set to a joint far from the first fold line FL1. By making the extension direction of the portion 24a smaller than the angle with respect to the width direction D2 (FIGS. 5 (d) and 5 (e)), _{the change in the inclination of the extension direction L 2} of the joint portion 24 is changed by the progress of the opening operation. it can correspond to a change in the peeling direction P ₂ associated with. Thus, especially in the initial stage of the unsealing operation, the continuity of a release direction P ₁ of the joint portion 24 is maintained in response to a change in the peeling direction P _2, continuously bonding release of the second seal portion 22 It can be carried out. Then, the tendency that the peeling sound generated is interrupted is reduced, the peeling sound is less likely to be attached to the ear, and the discomfort that may be caused by the peeling sound can be reduced. Also in FIGS. 5 (d) and 5 (e), the straight line X ₀ refers to a straight line parallel to the width direction D2.

The configuration including the positions and extending directions of the joint portions 23a, 23b, 24a, and 24b in FIG. 5 is merely an example for deepening the understanding, and the joint portions in the first seal portion 21 and the second seal portion 22. The change in inclination along the longitudinal direction D1 is not limited to that shown in the figure. The inclination of the joint portion in the extending direction may be gradually changed or gradually changed over the entire longitudinal direction D1 of the first seal portion 21 and / or the second seal portion 22. Further, in a part of the first seal portion 21 and / or the second seal portion 22, the inclination of the joint portion in the extending direction may be gradually or stepwise changed. In that case, the extending direction of the joint portion may not change in the remaining portion of the first seal portion 21 and / or the second seal portion 22 except for the above-mentioned part, and the change is different from the above-mentioned part. It may change in the way of.

Therefore, for example, in the second seal portion 22, the portion of the joint portion 24 closer to the first folding line FL1 so as to have a smaller inclination with respect to the width direction D2 is less than half the length of the entire first region R1 or less than half, or On the free end side within a range of one-third or less, and on the other side of the first region R1 near the first folding line FL1, the inclination of the joint portion 24 is the same over the longitudinal direction D1, or the first The joint portion 24 closer to the one-fold line FL1 may be configured to have a larger inclination.

FIG. 6 shows a modified example of the elongated shape of the joint portion included in the seal portion 20. FIG. 6 is an enlarged view showing one joint portion 23 of the first seal portion 21, but the shape of the joint portion 24 of the second seal portion 22 may have a similar modification.

As shown in FIG. 6A, the joint portion 23 may be oblong, or as shown in FIGS. 6B to 6D, the joint portion 23 may be polygonal. In FIGS. 6 (b) to 6 (d), the joint portion 23 is a triangle, a quadrangle, or a pentagon. As shown in FIGS. 6B to 6D, if the joint portion has an apex, particularly a shape having an apex inside the width direction D2, the joint release of the joint portion can be started from the apex at the time of opening. Since the property is high, the peeling resistance is reduced, and the loudness of the peeling sound can be reduced.

Although the above-described form has described the packaging absorbent article 100 in which the packaging sheet is folded in three, the packaging absorbent article in which the packaging sheet is folded in four or more is also from the center in the width direction. The grip portion is configured to be provided at a displaced position, and the same effect as described above can be obtained. When the packaging sheet 10 is folded in four or more, for example, before folding the second region R2 (FIG. 1) along the folding line FL2, the portion of the second region R2 on the other end 12 side is once or more, inside or By folding it outward in advance. At that time, the absorbent article may or may not be folded together with the packaging sheet.

(Absorbent article)
The absorbent article 1 used in the embodiment of the present invention may be a sanitary napkin, a panty liner (pantyliner), a pad for light incontinence, or the like. In the present specification, the absorbent article 1 has an elongated shape in a plan view, but the plan view shape of the absorbent article 1 is not limited to the one shown in the drawing. The absorbent article 1 may be, for example, a body fluid absorbing pad having a shape of being wrapped by the packaging sheet without being folded together with the packaging sheet, for example, a body fluid absorbing pad having a shape such as a regular polygon including a square or a circle. When the absorbent article 1 has an elongated shape, the total length of the absorbent article 1 can be 120 to 480 mm, and the width of the absorbent article 1 can be 40 to 200 mm.

The absorbent article 1 may have a structure in which a liquid-impermeable back sheet, an absorber, and a liquid-permeable front sheet are laminated in this order. As the back sheet, 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. Further, those having moisture permeability may be used.

As the surface 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 can be used alone or. Two or more types can be used in combination.

The absorber is not limited as long as it is a material capable of absorbing and retaining body fluid, but preferably contains cotton-like pulp and a water-absorbing 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 can be in the range of 0.5 to 25 mm, preferably in the range of 1.5 to 6.5 mm. The absorber may have a structure in which a region corresponding to the body fluid discharge port (a region corresponding to the body fluid discharge port) and a region behind the body fluid discharge port corresponding region and facing the groove of the buttocks are bulged.

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

1 Absorbent article 10 Packaging sheet 11 One end in the longitudinal direction of the packaging sheet 12 The other end in the longitudinal direction of the packaging sheet 15, 15A, 15B, 15C Gripping part 20 Sealing part 21 First sealing part 22 Second sealing part 23, 23a, 24b 1 Joint portions 24, 24a, 24b included in the seal portion 100 Joint portions included in the second seal portion 100 Package absorbent article B ₁ Peeling boundary line in the first seal portion B ₂ Peeling boundary line in the second seal portion CL Longitudinal center line D1 Longitudinal direction D2 Width direction FL1 First fold line FL2 Second fold line L, L ₁ , L ₂ Longitudinal direction (extending direction) of the joint
P1 Peeling direction in the first seal portion R1 First region R2 Second region R3 Third region

Claims (6)

A packaging absorbent article including a packaging sheet and an absorbent article packaged by the packaging sheet.
The packaging sheet has a first region including one end in the longitudinal direction folded at the first fold line and a second region including the other end in the longitudinal direction folded at the second fold line. One region is superimposed on the second region,
Seals including a plurality of joints are formed on both edges in the width direction orthogonal to the longitudinal direction.
A package-absorbent article having a grip portion at a position deviated from the center in the width direction of the first region. The package-absorbent article according to claim 1, wherein the grip portion is a tab tape attached so as to straddle the boundary between the first region and the second region. The seal portion includes a first seal portion formed on an edge portion closer to the grip portion and a second seal portion formed on an edge portion farther from the grip portion.
The joint portion included in the first seal portion has an elongated plan view shape in which the outer side in the width direction is inclined and extends so as to approach the first fold line in the width direction. 2. The package absorbent article according to 2. In the first seal portion, the angle of the extending direction of the joint portion near the first fold line with respect to the width direction is larger than the angle of the extending direction of the joint portion far from the first fold line with respect to the width direction. The package absorbent article according to claim 3, which comprises a large portion. 3. The joint portion included in the second seal portion has an elongated plan view shape in which the outer side in the width direction is inclined and extends so as to approach the first fold line in the width direction. The packaging absorbent article according to 4. In the second seal portion, the angle of the extending direction of the joint portion near the first fold line with respect to the width direction is larger than the angle of the extending direction of the joint portion far from the first fold line with respect to the width direction. The package absorbent article according to claim 5, which comprises a small portion.

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