JP7340436B2 - Packaging for absorbent articles - Google Patents

Description

The present invention relates to a package for an absorbent article, in which absorbent articles such as sanitary napkins are individually wrapped with a packaging sheet.

BACKGROUND ART Packaging bodies for absorbent articles, in which sanitary napkins as absorbent articles are individually wrapped with packaging sheets, have been known. The package for an absorbent article disclosed in Patent Document 1 includes an absorbent article with an adhesive layer formed on the non-skin contact side, a release treatment applied to the inner surface side, and directly adhered to the adhesive layer. A packaging sheet for individually packaging absorbent articles. The packaging sheet has both the function of protecting the adhesive layer of the absorbent article before use and the function of individually wrapping the absorbent article. In a state in which absorbent articles are individually packaged using packaging sheets, overlapping packaging sheets are adhered to each other via an adhesive. In the absorbent article package disclosed in Patent Document 1, in order to ensure the adhesive strength of the adhesive that bonds overlapping packaging sheets, the packaging sheet is provided with a non-release treated area, and the adhesive is bonded to the non-release treated area. A drug is provided.

Patent No. 4606670

In the absorbent article package of Patent Document 1, since the adhesive is provided in the non-release treated part, it is easier to ensure the adhesive strength of the adhesive compared to a structure in which the adhesive is provided in the release treated part. . However, since the adhesive is provided in the non-release processing area, the adhesive that bonds the packaging sheets to each other firmly adheres to the packaging sheet, and the adhesive does not separate smoothly from the packaging sheet when the package is opened. There was a risk that it would break without doing so.

Furthermore, in order to prevent the packaging sheet from unintentionally tearing when opened, it is conceivable to use an adhesive with relatively low adhesive strength. However, when an adhesive with low adhesive strength is used, the packaged state cannot be maintained, and there is a risk that the packaging sheet may be unintentionally opened before use.

The present invention has been made in view of these problems, and provides a package for absorbent articles that maintains the individually packaged state before use and can be opened smoothly during use.

A package for an absorbent article according to one embodiment includes: an absorbent article having a front-rear direction and a width direction that are perpendicular to each other; a packaging sheet that individually wraps the absorbent article; and an adhesive portion to which an adhesive is applied. A package for an absorbent article, wherein the adhesive part includes a main body adhesive part that adheres the absorbent article to a wearable article, and a main body adhesive part that adheres the absorbent article to a wearing article, and a package that faces each other in an individually wrapped state in which the absorbent article is individually wrapped. a packaging adhesive section that adheres the sheets to each other; the packaging sheet has a first mold release area and a second mold release area to which a mold release agent is applied, and the adhesive of the first mold release area The adhesive force to the adhesive is lower than the adhesive force of the second release area to the adhesive, and in the individually packaged state, the main body adhesive part is in contact with the first release area, and the packaging adhesive part is It is in contact with the second mold release area.

FIG. 1 is a plan view of the absorbent article package in a first unfolded state as viewed from the skin-facing surface side. FIG. 2 is a plan view of the absorbent article package in a first unfolded state as viewed from the non-skin facing side. FIG. 3 is a cross-sectional view taken along line AA shown in FIG. FIG. 4 is a diagram for explaining a folding mode of a package of an absorbent article. FIG. 5 is a plan view of the sheet unfolded state of the absorbent article package according to the first embodiment. FIG. 6 is a diagram for explaining the manner in which the package of the absorbent article is opened.

(1) Overview of the embodiments At least the following points will become clear from the description of this specification and the accompanying drawings.
A package for an absorbent article according to one embodiment includes: an absorbent article having a front-rear direction and a width direction that are perpendicular to each other; a packaging sheet that individually wraps the absorbent article; and an adhesive portion to which an adhesive is applied. has. The adhesive portion includes a main body adhesive portion that adheres the absorbent article to a wearable article, and a packaging adhesive portion that adheres the packaging sheets facing each other in an individually wrapped state in which the absorbent article is individually wrapped. . The packaging sheet has a first release area and a second release area to which a release agent is applied. The adhesive force of the first mold release area to the adhesive is lower than the adhesive force of the second mold release area to the adhesive. In the individually wrapped state, the main body adhesive part is in contact with the first mold release area, and the packaging adhesive part is in contact with the second mold release area.

According to this aspect, the first mold release region and the second mold release region have different adhesion forces to the adhesive. The packaging adhesive portion is in contact with a second release region that has a relatively high adhesive strength to the adhesive. Therefore, the adhesive state of the packaging sheets can be maintained by the packaging adhesive portion, and the problem of unintentionally opening the individual packaging before use can be suppressed. Further, the main body adhesive portion is in contact with the first mold release region where the adhesive force to the adhesive is relatively low. Therefore, when the package is opened, the adhesive part of the main body easily peels off from the packaging sheet, and it is possible to prevent the packaging sheet from unintentionally tearing. In addition, since a mold release agent is applied to both the first mold release area and the second mold release area, it is possible to prevent the packaging sheet from adhering too strongly to the adhesive, thereby preventing the packaging sheet from unintentionally tearing. can be suppressed.

According to a preferred aspect, the area ratio of the mold release agent in the first mold release region may be larger than the area ratio of the mold release agent in the second mold release region. According to this aspect, the adhesive force of the first release region to the adhesive can be relatively low. For example, even if the mold release agent in the first mold release area and the mold release agent in the second mold release area are the same type, the adhesion strength to the adhesive in the first mold release area and the second mold release area can easily be different. can be set.

According to a preferred aspect, the basis weight of the mold release agent in the first mold release region may be greater than the basis weight of the mold release agent in the second mold release region. According to this aspect, the adhesive force of the first release region to the adhesive can be relatively low. For example, even if the mold release agent in the first mold release area and the mold release agent in the second mold release area are the same type, the adhesion strength to the adhesive in the first mold release area and the second mold release area can easily be different. can be set.

According to a preferred aspect, the first release area and the second release area may extend in a first direction, which is one of the front-rear direction and the width direction, on the inner surface of the packaging sheet. The first release area may be separated from the packaging adhesive portion attached to the inner surface in a second direction, which is the other of the front-rear direction and the width direction. The second release area may be spaced apart from the main body bonding part in the second direction. According to this aspect, since the first mold release region is separated from the packaging adhesive portion in the second direction, the first mold release region may unintentionally abut against the packaging adhesive portion due to manufacturing errors or the like. This makes it easy to maintain the state in which the packaging sheets are adhered to each other by the packaging adhesive portion. Similarly, since the second mold release area is separated from the main body adhesive part in the second direction, it is possible to prevent the second mold release area from unintentionally coming into contact with the main body adhesive part due to manufacturing errors, etc. The adhesive part of the main body can be peeled off smoothly from the packaging sheet.

According to a preferred aspect, the packaging sheet has a pair of second outer edges that are outer edges in the second direction, and the second release area includes at least one of the pair of second outer edges. The packaging adhesive portion may be provided in a region including one second outer edge, and the packaging adhesive portion may be spaced apart from the one second outer edge. According to this aspect, since the second release area is provided in the area including one of the second outer edges, the packaging adhesive part can be arranged near one of the second outer edges of the packaging sheet. By adhering the vicinity of the second outer edge of the packaging sheet using the packaging adhesive section, it is possible to suppress the edge of the packaging sheet from lifting or turning over in the individually wrapped state. Moreover, since the packaging adhesive part is spaced apart from the second outer edge, the user can perform an opening operation by grasping the area between the second outer edge and the packaging adhesive part.

According to a preferred aspect, the second mold release region extends in a first direction that is one of the front-rear direction and the width direction, and the second mold release region has a mold release agent containing the mold release agent. and a non-release part that does not have the release agent, the release part and the non-release part are arranged alternately in the first direction, and the packaging adhesive part has a non-release part that does not have the release agent. It may extend in one direction and be disposed astride the mold release part and the non-mold release part. According to this aspect, the packaging adhesive part is relatively weakly adhered in the mold release part and relatively strongly adhered in the non-mold release part. Since the packaging adhesive part straddles the mold release part and the non-mold release part, parts that are easily peeled off when the package is opened and parts that are difficult to peel off are alternately provided. Since the user peels off the parts with different adhesive strength alternately, the user can open the package in stages and can perform the opening operation smoothly.

According to a preferable aspect, the length of the release portion in the first direction and the length of the non-release portion in the first direction are longer than the length of the second release region in the second direction. Short is fine. According to this aspect, the mold release part and the non-mold release part have a wide shape in the direction in which the packaging adhesive part extends. Therefore, even if the position of the packaging adhesive part in the second direction shifts due to manufacturing errors, etc., the packaging adhesive part is placed within the second release area, and the packaging adhesive part maintains the adhesive state between the packaging sheets. can.

According to a preferable aspect, the length of the non-release portion in the first direction may be longer than the length of the release portion in the first direction. According to this aspect, the length of the non-release part in the first direction is relatively long, and it is easy to ensure the adhesive force of the packaging adhesive part to the packaging sheet. Even when the width of the packaging adhesive portion extending in the first direction is configured to be narrow, adhesive force can be ensured and the adhesive state of the packaging sheets can be maintained by the packaging adhesive portion.

According to a preferable aspect, the non-release part includes a first non-release part and a second non-release part that are arranged to sandwich the release part and extend obliquely with respect to the first direction. A part of the second non-mold part may be arranged in a region extending from the first non-mold part in the second direction. According to this aspect, a part of the second non-mold part is arranged in a region extending in the second direction from the first non-mold part. In other words, the non-release portion is arranged in any cross section of the second release area along the second direction. Therefore, in the individually packaged state, air inside the package is difficult to escape from the inside to the outside of the package, and outside air is difficult to enter the package from the outside to the inside of the package. For example, in absorbent articles containing functional ingredients such as fragrances, deterioration of the ingredients can be suppressed. In addition, by suppressing the flow of air between the outside and inside of the package, good sanitary conditions can be maintained.

According to a preferred aspect, the first mold release region and the second mold release region may have a colored portion to which the colored mold release agent is applied. According to this aspect, during the manufacturing process, the first mold release area and the second mold release area can be visually determined based on the difference in color density and area. It is easy to arrange the main body adhesive part and the packaging adhesive part at appropriate positions. Further, the user can also visually grasp the first mold release area and the second mold release area. By grasping the packaging adhesive part through the second release area, it becomes possible to easily perform the unsealing operation.

According to a preferred embodiment, the absorbent article may include a functional component including at least any of a colorant, an antibacterial agent, a deodorant, a fragrance, a penetrant, and a pH adjuster. According to this aspect, the adhesive state between the packaging sheets can be maintained by the packaging adhesive portion, and unintentional deterioration of the functional component before use can be suppressed.

According to a preferred embodiment, the adhesive provided in the packaging adhesive portion may include a fragrance. According to this aspect, by opening the adhesive part of the packaging, the fragrance in the adhesive part of the packaging is scattered, and the fragrance can be imparted to the user.

According to a preferred embodiment, the packaging sheet has an unsealed end portion that is disposed on the outermost surface of the packaging body in the individually wrapped state and has an adhesive tape attached, and the packaging adhesive portion includes: The unsealing adhesive part has an unsealing adhesive part that adheres the unsealing end part and an opposing part of the packaging sheet opposite to the unsealing end part, and the unsealing adhesive part is such that the adhesive tape is attached to the unsealing end part and the opposite part of the packaging sheet. The tape extends in a direction perpendicular to the direction across the adhesive part and is spaced apart from each other in the orthogonal direction, and the spacing between the unsealing adhesive parts is provided in an area overlapping with the adhesive tape. It's fine. When a user performs an unsealing operation, he or she generally grasps a portion of the adhesive tape and peels off the packaging sheet so as to separate the unsealed end from the opposing portion. By pulling the unsealed end through the adhesive tape, a force is generated that causes the packaging sheets adhered to each other through the unsealing adhesive portion to be peeled off. At this time, since there is a gap between the unsealing adhesive parts in the area overlapping the fastening tape, the force for peeling off the fastening tape is likely to be applied to both of the unsealing adhesive parts with the gap between them. Moreover, since the interval between the unsealing adhesive parts is provided in the region overlapping the fastening tape, a part of the unsealing end (the region overlapping with the interval between the unsealing adhesive parts) is raised with respect to the opposing part. The force that causes the packaging sheets to peel from each other is easily transmitted outward in the orthogonal direction from the part that floats up against the opposing part, and the unsealing operation can be performed smoothly.

(2) Structure of absorbent article package Hereinafter, an absorbent article package 1 according to an embodiment will be described with reference to the drawings. In addition, in the description of the following drawings, the same or similar parts are given the same or similar symbols. However, it should be noted that the drawings are schematic and the ratio of each dimension is different from the actual one. Therefore, specific dimensions etc. should be determined with reference to the following explanation. Furthermore, the drawings may include portions with different dimensional relationships and ratios.

FIG. 1 is a developed plan view of a package for an absorbent article viewed from the skin-facing side, and FIG. 2 is a developed plan view of the absorbent article package viewed from the non-skin-facing side. FIG. 3 is a sectional view taken along line AA shown in FIG. The absorbent article package 1 (hereinafter referred to as the package 1) includes an absorbent article 10 and a packaging sheet 70 that individually wraps the absorbent article 10. Examples of the absorbent article 10 include disposable diapers, sanitary napkins, incontinence pads, and panty liners.

The absorbent article 10 has a front-rear direction L extending between the front and rear sides of the wearer's body, a width direction W perpendicular to the front-rear direction L, and a skin-facing surface side T1 and a skin-facing surface side T1 facing the wearer. The thickness direction T extends toward the non-skin facing surface side T2 facing the opposite side. The absorbent article 10 is arranged between a skin sheet 11 located on the skin-facing side T1, a non-skin sheet 12 located on the non-skin facing side T2, and between the skin sheet 11 and the non-skin sheet 12. The absorbent body 13 may have an absorbent body 13. The absorbent article 10 has wings 15 that swell outward in the width direction W. The wings 15 are folded back toward the non-skin-facing side T2 of the wearable article when the absorbent article 10 is worn on the wearable article such as underwear. The packaging sheet 70 is a substantially rectangular sheet in the unfolded state. The packaging sheet 70 has an inner surface 71 facing the absorbent article 10 and an outer surface 72 located on the outside in the individually wrapped state.

FIG. 4 is a diagram showing how the package 1 is folded. As shown in FIG. 4, the package 1 is folded together with the absorbent article 10 placed on the packaging sheet 70. As an example of the folding mode, first, as shown in FIGS. 4(a) and 4(b), with the absorbent article 10 placed on the packaging sheet 70, a pair of longitudinal fold lines FL along the front-rear direction L are first drawn. It is folded inward in the width direction W at the base point. At this time, the absorbent article 10 may be folded so that the skin-facing surfaces thereof face each other. Next, the absorbent article 10 and the packaging sheet 70 are folded in the front-back direction L using a pair of width fold lines FW along the width direction W as a base point. The pair of width fold lines FW may be spaced apart in the front-rear direction L. In this way, the absorbent articles 10 are individually wrapped by the packaging sheet 70. FIG. 4(c) shows an individually wrapped state in which the absorbent articles 10 are individually wrapped by the packaging sheet 70. The packaging sheet 70 has an open end 79 located on the outermost surface of the package in the individually wrapped state. The unsealed end 79 is attached with a fastening tape 77 and is fastened to the opposite part 78 of the packaging sheet facing the unsealed end 79 by the fastening tape 77.

The package 1 has an adhesive portion to which an adhesive is applied. The adhesive portion includes at least a main body adhesive portion 61 that adheres the absorbent article 10 to a wearing article, and a packaging adhesive portion 65 that adheres packaging sheets facing each other when the absorbent article 10 is individually packaged. have The adhesive is not particularly limited, but for example, an HMA type adhesive with a viscosity of 6,000 mPa·s can be used. Although the adhesive forming the main body adhesive part 61 and the adhesive forming the packaging adhesive part 65 are of the same type in this embodiment, they may be different in a modified example. The main body adhesive portion 61 is provided on the non-skin sheet 12 of the absorbent article 10. The main body adhesive portion 61 is covered and protected by the packaging sheet 70 before the absorbent article 10 is used. The main body adhesive portion 61 abuts against the inner surface 71 of the packaging sheet 70 . The main body adhesive part 61 is configured to separate from the packaging sheet 70 without separating from the non-skin sheet 12 during use, and has a structure in which the adhesive force to the non-skin sheet 12 is higher than the adhesive force to the packaging sheet 70. has been done. The packaging adhesive part 65 joins the packaging sheets 70 together. As shown in FIG. 4(a), the packaging adhesive part 65 is arranged in the front-rear direction L at the side of the packaging sheet 70 in the width direction W so as to join the packaging sheet 70 folded around the longitudinal fold line FL. It is extending. The packaging adhesive part 65 adheres the inner surface 71 of the packaging sheet 70 and the outer surface 72 of the packaging sheet 70. Therefore, the packaging adhesive portion 65 comes into contact with the inner surface 71 and outer surface 72 of the packaging sheet 70.

Next, the packaging sheet 70 will be explained in detail. FIG. 5 is a developed plan view of the packaging sheet 70 viewed from the skin-facing surface side T1. The packaging sheet 70 may be composed of a film. The packaging sheet 70 may have a first release region R11 and a second release region R12 to which a release agent is applied. The first mold release region R11 and the second mold release region R12 may partially have a portion to which a mold release agent is not applied, and the mold release region includes a portion to which a mold release agent is not applied. Configure. The dimension of the portion to which the mold release agent is not applied in the mold release region is preferably small, and the dimension in at least one of the front-rear direction L and the width direction W may be 15 mm or less. The area where the dimensions in both the front-rear direction L and the width direction W exceed 15 mm and where no mold release agent is applied constitutes a non-release area where no mold release agent is applied. Moreover, the dimensions of the portion to which the mold release agent is not applied in the mold release region may be different in the dimension in the front-rear direction L and the dimension in the width direction W. The dimension in the front-back direction of this embodiment is 3.0 mm to 7.5 mm, and the dimension in the width direction W is 15.0 mm. The inner surface 71 of the packaging sheet 70 of this embodiment is provided with a first release region R11 and the second release region R12, and the outer surface 72 of the packaging sheet 70 is provided with a release agent printed with ink containing a release agent. A mold area is provided. In addition, in a modification, the outer surface 72 of the packaging sheet 70 may be provided with the first release area R11 or the second release area R12, and the packaging sheet 70 may not have a non-release area. The first release area R11 and the second release area R12 are provided on the same surface (inner surface 71) of the packaging sheet 70. Compared to the configuration in which the first mold release region R11 and the second mold release region R12 are provided on different sides of the packaging sheet 70, the process of applying the mold release agent can be simplified. The release agent may be one that can lower the friction coefficient of the sheet surface, and examples thereof include silicone resins, fluorine resins, and tetrafluoroethylene resins.

The adhesive strength of the first mold release region R11 to the adhesive is configured to be lower than the adhesive strength of the second mold release region R12 to the adhesive. When comparing adhesive strength, the adhesive strength for the same adhesive is compared. For example, the adhesive force of the first mold release area R11 to the main body adhesive part 61 may be lower than the adhesive force of the second mold release area R12 to the main body adhesive part 61, and the adhesive force of the first mold release area R11 to the packaging adhesive part 65 may be lower than that of the second mold release area R12 to the main body adhesive part 61. The force may be lower than the adhesive force of the second release region R12 to the packaging adhesive portion 65. In addition, the non-mold release area is not coated with a mold release agent, making it easy to obtain adhesive strength to the adhesive. Therefore, the adhesive force of the non-release area to the adhesive is higher than the adhesive force of the first release area R11 to the adhesive, and higher than the adhesive force of the second release area R12 to the adhesive.

Adhesive strength can be compared by the following peel strength. The higher the peel strength, the higher the adhesive force. Specifically, the peel strength of the first mold release region R11, the second mold release region R12, and the adhesive part of the main body is measured using an Instron model 5564 tester in a constant temperature room at 20°C. A target packaging sheet 70 and a sheet to which an adhesive has been applied are prepared and left to stand for 24 hours. The packaging sheet 70 to be measured is provided with a first release region R11 and a second release region R12. The sheet to which the adhesive has been applied is a sheet made of the same material as the packaging sheet 70 to be measured, and is a sheet to which no release agent is applied to the entire surface (the entire surface is a non-release area). The sheets are laminated so that the adhesive contacts the first release region R11 of the packaging sheet 70 to be measured. Next, the free end of each sheet was set in the jig of the above testing machine with a distance between chucks of 20 mm, and a peel test (so-called T-peel test) was performed at a speed of 300 mm/min until the sheets were completely peeled from each other. )I do. The maximum strength (N) in the above peel test is employed as the peel strength (N). The above peel test is repeated a total of 10 times using different test samples, and the average value is used. In addition, the peel strength of the first mold release region R11, the second mold release region R12, and the packaging adhesive part is measured using an Instron model 5564 tester in a constant temperature room at 20°C. A packaging sheet 70 including the packaging adhesive portion to be measured is prepared and left to stand for 24 hours. Next, the part with the packaging adhesive part was cut into a width of 25 mm, and each of the packaging sheets joined through the packaging adhesive part was set in the jig of the above-mentioned testing machine with a distance between chucks: 30 mm. A peel test (so-called T-peel test) is performed at a speed of 10 minutes until the sheets are completely peeled from each other. The peeling direction should match the opening direction of the package. The maximum strength (N) in the above peel test is employed as the peel strength (N). The above peel test is repeated a total of 5 times using different test samples, and the average value is used.

The structure that makes the adhesive force different may be different depending on the type of mold release agent, or it may be different depending on the area ratio of the mold release agent using the same mold release agent, or it may be different depending on the area ratio of the mold release agent using the same mold release agent. The amount may be varied depending on the basis weight of the mold release agent. That is, the area ratio of the mold release agent in the first mold release region R11 may be larger than the area ratio of the mold release agent in the second mold release region R12. The area ratio is the area of the region to which the mold release agent is applied per unit area. Since the area ratio of the mold release agent in the first mold release region R11 is larger than the area ratio of the mold release agent in the second mold release region R12, the adhesive force to the adhesive in the first mold release region R11 can be relatively low. . For example, even if the mold release agent in the first mold release region R11 and the mold release agent in the second mold release region R12 are of the same type, the adhesion to the adhesive in the first mold release region R11 and the second mold release region R12 The forces can be easily varied. Note that comparison of area ratios can be performed using a wettability check dyne pen. When the first mold release area R11 and the second mold release area R12 are filled in with a wettability check dyne pen, the parts to which the mold release agent has been applied will have a thin layer of ink, and the parts to which the mold release agent has not been applied will have a thin layer of ink. , the ink sticks thickly. The area ratio can be calculated by detecting the area to which the release agent has been applied with the ink and measuring the area.

Further, the basis weight of the mold release agent in the first mold release region R11 may be greater than the basis weight of the mold release agent in the second mold release region R12. Since the basis weight of the mold release agent in the first mold release region R11 is larger than the basis weight of the mold release agent in the second mold release region R12, the adhesive force to the adhesive in the first mold release region R11 can be relatively low. . For example, even if the mold release agent in the first mold release region R11 and the mold release agent in the second mold release region R12 are the same type, the adhesive strength of the first mold release region R11 and the second mold release region R12 to the adhesive can be easily made different. Note that the basis weight comparison can be performed using a wettability check dyne pen. When the first mold release area R11 and the second mold release area R12 are filled in with a dyne pen for wettability check, the ink is thinly attached to the areas where the basis weight of the mold release agent is high, and the areas where the basis weight of the mold release agent is low. , the ink sticks thickly. By comparing the density of the ink, the basis weight of the release agent can be compared.

The inner surface 71 of the packaging sheet 70 is configured such that the main body adhesive portion 61 and the packaging adhesive portion 65 are in contact with each other. In the individual packaging state, the main body adhesive part 61 contacts the first release area R11 of the inner surface 71 of the packaging sheet 70, and the packaging adhesive part 65 contacts the second release area R12 of the inner surface 71 of the packaging sheet 70. ing. At least a portion of the main body bonding portion 61 may contact the first mold release region R11, but preferably, the entire body bonding portion 61 may contact the first mold release region R11. At least a portion of the packaging adhesive portion 65 may contact the second release region R12, but preferably the entire area of the packaging adhesive portion 65 may contact the second release region R12. The packaging sheet 70 has a first release region R11 and a second release region R12 that have different adhesion strengths to the adhesive. The packaging adhesive portion 65 is in contact with the second release region R12, which has a relatively high adhesive strength to the adhesive. Therefore, the adhesive state of the packaging sheets 70 is maintained by the packaging adhesive part 65, and it is possible to suppress the problem of unintentionally opening the individual packaging before use. Further, the main body adhesive portion 61 is in contact with the first mold release region R11, which has a relatively low adhesive force to the adhesive. Therefore, when the package is opened, the main body adhesive part 61 easily peels off from the packaging sheet 70, and it is possible to prevent the packaging sheet 70 from being unintentionally torn. In addition, since a mold release agent is applied to both the first mold release region R11 and the second mold release region R12, it is possible to prevent the packaging sheet 70 from adhering too tightly to the adhesive, and to prevent the packaging sheet 70 from forming as intended. This can prevent it from breaking without causing damage.

The first release area R11 and the second release area R12 extend in the first direction D1, which is one of the front-rear direction L and the width direction, on the inner surface 71 of the packaging sheet 70. The first direction D1 is the direction in which the first mold release region R11 and the second mold release region R12 extend (the direction in which the length thereof is longer), and the second direction D2 is the other of the front-rear direction L and the width direction, This is a direction perpendicular to the first direction D1. In this embodiment, the first mold release region R11 and the second mold release region R12 extend in the front-back direction L, the first direction D1 is the front-back direction L, and the second direction D2 is the width direction W. It is. The first release region R11 continues over the entire area of the packaging sheet 70 in the first direction D1, and the second release area R12 also continues over the entire area of the packaging sheet 70 in the first direction D1. The first mold release region R11 and the second mold release region R12 are adjacent to each other in the second direction D2. In the unfolded state where the package 1 is not folded (the state shown in FIGS. 1 and 2), the first release region R11 is separated from the packaging adhesive part 65 in the second direction D2, and the second release region R12 is spaced apart from the main body adhesive part 61 in the second direction D2. Since the first mold release region R11 is separated from the packaging adhesive portion 65 in the second direction D2, it is possible to prevent the first mold release region R11 from unintentionally abutting the packaging adhesive portion 65 due to manufacturing errors or the like. This makes it easy to maintain the state in which the packaging sheets 70 are adhered to each other by the packaging adhesive portion 65. Similarly, since the second mold release region R12 is separated from the main body adhesive part 61 in the second direction D2, the second mold release region R12 may unintentionally hit the main body adhesive part 61 due to manufacturing errors or the like. This makes it possible to prevent the main body adhesive portion 61 from coming into contact with the packaging sheet 70, and to smoothly peel off the main body adhesive portion 61 from the packaging sheet 70.

As shown in FIG. 5, the packaging sheet 70 has a pair of second outer edges 702 that are outer edges in the second direction D2. The pair of second outer edges 702 of this embodiment are outer edges in the width direction W, and extend in the front-rear direction L. The second release region R12 is provided in a region including at least one second outer edge 7021 of the pair of second outer edges 702. A second mold release region R12 may be provided in a region including one second outer edge 7021, and a first mold release region R11 may be provided in a region including the other second outer edge 7022. Note that the configuration in which the second mold release region R12 is provided in the area including one second outer edge 7021 is the same as the configuration in which the second mold release region R12 is provided on one second outer edge 7021. First, a configuration may be included in which the first mold release region R11 is provided only in a small range (specifically, 5 mm or less) from one second outer edge 7021. Similarly, the configuration in which the first mold release region R11 is provided in the area including the other second outer edge 7022 is only the configuration in which the first mold release region R11 is provided on the other first outer edge 7022. Instead, it may include a configuration in which the second release region R12 is provided only in a small range (specifically, 5 mm or less) from the other second outer edge 7022. Since the second release region R12 is provided in the region including one second outer edge 7021, the packaging adhesive portion 65 can be arranged near one second outer edge 7021 of the packaging sheet 70. By adhering the vicinity of the second outer edge 702 of the packaging sheet 70 by the packaging adhesive portion 65, it is possible to suppress the edge of the packaging sheet 70 from lifting or turning over in the individually wrapped state. The packaging adhesive portion 65 is spaced apart from one second outer edge 7021. Since the packaging adhesive portion 65 is spaced apart from one second outer edge 7021, the user can grasp the area between the second outer edge 7021 and the packaging adhesive portion 65 to open the package. Therefore, the operability of the opening operation can be improved.

The second mold release region R12 may include a mold release part 75 having a mold release agent and a non-mold release part 76 not having a mold release agent. As described above, the non-release portion 76 may be a portion having a dimension of 10 mm or less in at least one of the longitudinal direction L and the width direction W. The mold release parts 75 and the non-mold release parts 76 may be arranged alternately in the first direction D1. The packaging adhesive part 65 may extend in the first direction D1 and be disposed astride the mold release part 75 and the non-mold release part 76. According to such a configuration, the packaging adhesive part 65 is relatively weakly adhered at the mold release part 75 and relatively strongly adhered to the non-mold release part 76. Since the packaging adhesive part 65 straddles the mold release part 75 and the non-mold release part 76, parts that are easily peeled off and parts that are difficult to peel off when the package is opened are alternately provided. Since the user peels off the parts with different adhesive strength alternately, the user can open the package in stages and can perform the opening operation smoothly. Note that the first mold release region R11 according to the present embodiment includes only the mold release portion 75 and does not include the non-mold release portion 76; however, the first mold release region R11 according to the modification example includes the mold release portion 75. and a non-releasing part 76. In this modification, the ratio of the mold release part 75 to the non-mold release part 76 in the first mold release region R11 is higher than the ratio of the mold release part 75 to the non-mold release part 76 in the second mold release region R12. good.

As shown in FIG. 5, the length 75L of the mold release part 75 in the first direction D1 (the length in the front-rear direction L) and the length 75L of the non-mold release part 76 in the first direction D1 (the length in the front-rear direction L) 76L may be shorter than the length R12W of the second release region R12 in the second direction D2 (length in the width direction W). The mold release part 75 and the non-mold release part 76 have a wide shape with respect to the direction in which the packaging adhesive part 65 extends. Therefore, even if the position of the packaging adhesive part 65 in the second direction D2 deviates due to manufacturing error or the like, the packaging adhesive part 65 can be arranged within the second release area R12, and the packaging adhesive part 65 can be attached to the packaging sheet 70. The adhesive state between them can be maintained. In addition, in the modified example, the length of the mold release part 75 in the first direction D1 (the length in the front-rear direction L) 75L and the length of the non-mold release part 76 in the first direction D1 (the length in the front-rear direction L) 76L. may be longer than the length R12W of the second release region R12 in the second direction D2 (length in the width direction W).

As shown in FIG. 5, the length 76L of the non-mold-releasing portion 76 in the first direction D1 (the length in the front-rear direction L) is the length 76L of the mold-releasing portion 75 in the first direction D1 (the length in the front-rear direction L). ) It may be longer than 75L. The length of the non-release portion 76 in the first direction D1 is relatively long, and it is easy to ensure the adhesive force of the packaging adhesive portion 65 to the packaging sheet 70. Even if the width of the packaging adhesive portion extending in the first direction D1 is configured to be narrow, adhesive force can be ensured and the adhesive state of the packaging sheets 70 can be maintained by the packaging adhesive portion 65. The ratio of the length of the non-mold-releasing part in the first direction D1 to the length of the mold-releasing part in the first direction D1 is not particularly limited, but considering sealing performance and opening operability, it is 7:3 to 6:4. is preferred. In addition, in the modified example, the length 76L of the non-mold-releasing portion 76 in the first direction D1 (the length in the front-rear direction L) is the length 76L of the mold-releasing portion 75 in the first direction D1 (the length in the front-rear direction L). It may be shorter than 75L.

As shown in FIG. 5, the non-release part 76 has a first non-release part 761 and a second non-release part 762. The first non-mold part 761 and the second non-mold part 762 are parts disposed with the mold part 75 in between in the first direction D1, and both of them are inclined with respect to the first direction D1 while the first non-mold part 762 It extends in direction D1. A part of the second non-mold part 762 may be arranged in a region R761 extending from the first non-mold part 761 in the second direction D2. In other words, the non-release portion 76 is arranged in any cross section of the second release region R12 along the second direction D2. Therefore, in the individually packaged state, air inside the package 1 is difficult to escape from the inside to the outside of the package 1, and outside air is difficult to enter into the package 1 from the outside to the inside of the package 1. For example, in the absorbent article 10 having a functional component such as a fragrance, deterioration of the component can be suppressed. Moreover, by suppressing the inflow and outflow of air between the outside and inside of the package 1, good sanitary conditions can be maintained.

The mold release agent applied to the first mold release region R11 and the second mold release region R12 may be colored. That is, the first mold release region R11 and the second mold release region R12 may have colored portions colored with a mold release agent. According to this configuration, in the manufacturing process, the first mold release region R11 and the second mold release region R12 can be visually determined by the difference in color density and area. It is easy to arrange the main body adhesive part 61 and the packaging adhesive part 65 at appropriate positions. Further, the user can also visually grasp the first mold release region R11 and the second mold release region R12. By grasping the packaging adhesive portion 65 through the second release region R12, it becomes possible to easily perform the unsealing operation.

The absorbent article may include a functional component including at least any of a colorant, an antibacterial agent, a deodorant, a fragrance, a penetrant, and a pH adjuster. According to the package of this embodiment, it is easy to maintain the adhesive state between the packaging sheets 70 by the packaging adhesive portion 65. Therefore, it is possible to suppress the functional components of the absorbent article 10 from unintentionally deteriorating before use. Further, the adhesive provided in the packaging adhesive part 65 may include a fragrance. According to this aspect, by opening the packaging adhesive part 65, the fragrance in the packaging adhesive part 65 is scattered, and the fragrance can be imparted to the user. In particular, in the structure in which the mold release part 75 and the non-mold release part 76 are provided alternately, the fragrance is scattered in stages during the operation process, allowing the user to enjoy the opening operation, and It can reduce depression.

Next, the operability of the opening operation will be explained. FIG. 6 is a diagram for explaining the opening operation, and FIGS. 6(b) and (c) schematically show a cross section of the package taken along the line BB shown in FIG. 6(a). It is a diagram. In FIGS. 6(b) and 6(c), for convenience of explanation, the number of packaging sheets and the absorbent article 10 are partially omitted. As shown in FIG. 6(a), the packaging sheet 70 has an unsealed end 79 that is disposed on the outermost surface of the package in the individually wrapped state and has an adhesive tape 77 attached thereto. The adhesive portion may include an unsealing adhesive portion 66 that adheres the unsealed end portion 79 and the facing portion 78 of the packaging sheet 70 facing the unsealed end portion 79. In addition, since the unsealing adhesive part 66 adheres the outer surfaces 72 of the packaging sheet 70 to each other, in the form having the unsealing adhesive part 66, a second release area R12 is provided on the outer surface 72 of the packaging sheet. It is preferable that the adhesive portion 66 is in contact with the second mold release region R12. The unsealing adhesive portion 66 is arranged in a direction perpendicular to the direction in which the adhesive tape 77 straddles the unsealing end portion 79 and the unsealing adhesive portion 66 (the front-rear direction L in this embodiment) (the width direction in this embodiment). W) and are spaced apart in the orthogonal direction. As shown in FIG. 6(b), the interval G66 between the unsealing adhesive portions 66 is provided in a region overlapping with the fastening tape 77 in the thickness direction T. As shown in FIG. As shown in FIG. 6(c), when the user performs the unsealing operation, he or she generally grasps a part of the fastening tape 77 and wraps the package in such a way as to separate the unsealed end 79 from the facing part 78. Perform an operation to tear off the sheet. By pulling the unsealed end 79 through the adhesive tape 77, a force is generated that causes the packaging sheets 70 bonded through the unsealable adhesive portion 66 to be peeled from each other. At this time, for example, if the unsealing adhesive part 66 is continuous in the orthogonal direction (width direction) and the continuous unsealing adhesive part 66 straddles the fastening tape 77, the force that causes the packaging sheets 70 to peel from each other is generated. Concentrate on the unsealing adhesive portion 66 in the area overlapping the fastening tape 77. When concentrated on the unsealing adhesive portion 66 in the region overlapping the adhesive tape, the force that causes the packaging sheets 70 to peel from each other is difficult to be transmitted to the outside in the orthogonal direction. If the unsealed end 79 is continued to be pulled through the fastening tape 77 without a sufficient force being applied to separate the packaging sheets 70 from each other, the packaging sheet 70 may break unintentionally. However, since the gap G66 between the unsealing adhesive parts 66 is provided in the region overlapping the fastening tape 77, the force for peeling off the fastening tape 77 is likely to be applied to both unsealing adhesive parts 66 with the gap G66 in between. In addition, since the gap G66 between the unsealing adhesive parts 66 is provided in the area overlapping the adhesive tape 77, a part of the unsealing end 79 (the area overlapping with the interval between the unsealing adhesive parts) is separated from the facing part 78. It's floating. The force that causes the packaging sheets 70 to peel from each other is easily transmitted from the floating portion to the outside in the perpendicular direction from the facing portion, allowing for smooth unsealing operation.

Although the present invention has been described in detail using the embodiments described above, it is clear to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be implemented as modifications and variations without departing from the spirit and scope of the present invention as defined by the claims. Therefore, the description in this specification is for the purpose of illustrative explanation and does not have any limiting meaning on the present invention.

In the embodiment described above, the mold release part 75 and the non-mold release part 76 of the second mold release region R12 are inclined with respect to the first direction D1 and the second direction D2. However, in a modification, the mold release part 75 and the non-mold release part 76 may extend along the second direction D2 or may extend along the first direction D1. In addition, the shape of at least one of the mold release part 75 and the non-mold release part 76 in plan view does not have to be a linear shape extending in a straight line, but may be a curved shape, or a figure shape such as a circle. There may be. Moreover, the packaging adhesive part 65 may be arranged along the width direction at the front and back ends of the packaging sheet, or in a package that is folded into three or four with the crease along the width direction as a base point. , the sides of the packaging sheet in the width direction may be adhered to each other.

According to this aspect, it is possible to provide a package for an absorbent article that maintains the individually packaged state before use and can be opened smoothly during use.

1: Absorbent article packaging, 10: Absorbent article, 11: Skin sheet, 12: Non-skin sheet, 13: Absorbent body, 15: Wing, 61: Body adhesive part, 65: Packaging adhesive part, 66 : Unsealing adhesive part, 70 : Packaging sheet, 71 : Inner surface, 72 : Outer surface, 76 : Unsealed end, 77 : Fastening tape, FL : Longitudinal fold line, FW : Width fold line, L : Front-back direction, T : Thickness Direction, T1: skin facing side, T2: non-skin facing side, W: width direction

Claims (13)

An absorbent article having a front-rear direction and a width direction that are orthogonal to each other;
a packaging sheet for individually wrapping the absorbent article;
A package for an absorbent article, comprising: a bonded portion to which an adhesive is attached;
The adhesive portion includes a main body adhesive portion that adheres the absorbent article to a wearable article, and a packaging adhesive portion that adheres the packaging sheets facing each other in an individually wrapped state in which the absorbent article is individually wrapped. death,
The packaging sheet has a first release area and a second release area to which a release agent is applied,
The adhesive force of the first mold release area to the adhesive is lower than the adhesive force of the second mold release area to the adhesive,
In the individually wrapped state, the main body adhesive part is in contact with the first mold release area, and the packaging adhesive part is in contact with the second mold release area. The package for an absorbent article according to claim 1, wherein the area ratio of the release agent in the first release area is larger than the area ratio of the release agent in the second release area. The absorbent article package according to claim 1 or 2, wherein the basis weight of the mold release agent in the first mold release region is larger than the basis weight of the mold release agent in the second mold release region. . The first release area and the second release area extend in a first direction that is one of the front-rear direction and the width direction on the inner surface of the packaging sheet,
The first release area is spaced apart from the packaging adhesive part attached to the inner surface in a second direction, which is the other of the front-rear direction and the width direction,
The absorbent article package according to any one of claims 1 to 3, wherein the second release area is spaced apart from the main body adhesive part in the second direction. The packaging sheet has a pair of second outer edges that are outer edges in the second direction,
The second mold release region is provided in a region including at least one second outer edge of the pair of second outer edges,
The absorbent article package according to claim 4, wherein the packaging adhesive part is spaced apart from the one second outer edge. The second mold release region extends in a first direction that is one of the front-rear direction and the width direction,
The second mold release region has a mold release part having the mold release agent and a non-mold release part not having the mold release agent,
The mold release part and the non-mold release part are arranged alternately in the first direction,
The absorbent material according to any one of claims 1 to 5, wherein the packaging adhesive part extends in the first direction and is disposed across the mold release part and the non-mold release part. packaging for goods; The length of the release part in the first direction and the length of the non-release part in the first direction are the length of the second release area in the second direction, which is the other of the front-rear direction and the width direction. The absorbent article package according to claim 6, which is shorter than the length of the package. The absorbent article package according to claim 6 or 7, wherein the length of the non-release portion in the first direction is longer than the length of the release portion in the first direction. The non-release part has a first non-release part and a second non-release part that are arranged to sandwich the release part and extend obliquely with respect to the first direction,
The absorbent material according to any one of claims 6 to 8, wherein a part of the second non-release part is arranged in a region extending in the second direction from the first non-release part. packaging for goods; The absorbent article according to any one of claims 1 to 9, wherein the first mold release region and the second mold release region have a colored part to which the colored mold release agent is applied. packaging. The absorbent article according to any one of claims 1 to 10, wherein the absorbent article includes a functional component having at least any one of a colorant, an antibacterial agent, a deodorant, a fragrance, a penetrant, and a pH adjuster. packaging for absorbent articles. The absorbent article package according to any one of claims 1 to 11, wherein the adhesive provided in the packaging adhesive portion contains a fragrance. The packaging sheet is disposed on the outermost surface of the packaging body in the individually wrapped state, and has an open end portion to which a fastening tape is attached,
The adhesive part has an unsealing adhesive part that adheres the unsealed end part and a facing part of the packaging sheet that faces the unsealed end part,
The unsealing adhesive part is arranged such that the fastening tape extends in an orthogonal direction that is perpendicular to a direction across the unsealing end part and the unsealing adhesive part, and is spaced apart in the orthogonal direction,
The absorbent article package according to any one of claims 1 to 12, wherein the interval between the unsealing adhesive portions is provided in a region overlapping with the fastening tape.

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