JP4578319B2 - Panty liner packaging structure - Google Patents

Description

  The present invention relates to an absorbent article packaging comprising: an absorbent article; and a non-skin-contacting surface side of the absorbent article that is peelably adhered to the non-skin contact surface side of the absorbent article via an adhesive and wraps the absorbent article. Concerning structure.

  Conventionally, absorbent articles such as panty liners (corimono sheets), sanitary napkins, incontinence pads, etc., are folded together with the packaging material and individually packaged by sealing predetermined portions of the packaging material, and are commercially available. . When using this individually packaged absorbent article, usually the sealed part of the packaging material is peeled off, the folded absorbent article is unfolded, and the absorbent article is peeled off from the packaging material Therefore, an operation such as correctly mounting the absorbent article is necessary, and it may take time and effort to take out and mount the absorbent article. For this reason, the user is requesting individual packaging that enables quick removal and mounting of absorbent articles. Further, for example, panty liners, sanitary napkins and the like are often carried in bags or the like in a individually packaged state, and it is also desired that they are individually packaged in a compact manner without being bulky.

  As a technique corresponding to the above request, Patent Document 1 has a pad such as a sanitary napkin and a wrapper (wrapping material), and the vertical edge of the wrapper is shorter than the vertical edge of the pad. Disposable products are disclosed in which more than 50% of the longitudinal portion overlaps the wrapper, a portion of the pad does not overlap the wrapper, and the longitudinal side of the wrapper extends beyond the longitudinal side of the pad. .

  However, in the disposable product disclosed in Patent Document 1, in the state where the pad is individually wrapped by the wrapper, the entire periphery of the wrapper is sealed, so it takes time to peel off the sealed portion, It takes time to remove the pad. Also, when releasing the folded pad by peeling off the sealing part, the pad will be prone to wrinkle because recovery from the folded state to the unfolded state is slow, and the pad should be worn neatly I can't.

JP 2000-5227 A

  Accordingly, an object of the present invention is to provide an absorbent article packaging structure in which the absorbent article is individually packaged in a compact manner, and the absorbent article can be quickly taken out and attached.

  The present invention relates to an absorbent article packaging comprising: an absorbent article; and a non-skin-contacting surface side of the absorbent article that is peelably adhered to the non-skin contact surface side of the absorbent article via an adhesive and wraps the absorbent article. The packaging material is composed of a wide part wider than the absorbent article and a narrow part narrower than the wide part, and the absorbent article includes the absorbent part together with the narrow part. The article is wound integrally and / or folded in the longitudinal direction of the article to form a roll, and the wide portion is folded in the longitudinal direction of the absorbent article in a state of including the roll. And the absorbent article in which the overlapping part which this wide part opposes is joined in the width direction both ends edge of this wide part extended outward from the both ends edge of this roll-shaped object is formed. The above-mentioned object is achieved by providing a packaging structure.

  In the absorbent article packaging structure of the present invention, the absorbent article is packaged in a compact manner, and the absorbent article can be quickly taken out. In addition, the absorbent article that has been wound or folded inside the packaging structure is excellent in recoverability to the unfolded state, and it is difficult for the absorbent article to fold, and it is easy to attach the absorbent article. Can be done.

Hereinafter, the packaging structure of the absorbent article of the present invention will be described with reference to the drawings with regard to a preferred embodiment thereof.
As shown in FIGS. 1 to 3, the packaging structure 10 of the present embodiment includes a panty liner (cage sheet) 1 and a non-skin contact surface side of the panty liner 1 (on the wearer's skin side when worn) And a packaging material 5 for wrapping the panty liner 1, the packaging material 5 having a width wider than that of the panty liner 1. It consists of a wide wide part 51 and a narrow part 52 narrower than the wide part 51. Further, a known pressure-sensitive fastening tape 6 is provided on one end edge 51 a along the width direction of the wide portion 51.

  In the packaging structure 10 of the present embodiment, as shown in FIGS. 4A to 4C, the panty liner 1 is integrally wound in the longitudinal direction of the panty liner 1 together with the narrow portion 52. And / or folded into a roll R, and the wide portion 51 is folded in the longitudinal direction of the panty liner 1 in a state of including the roll R, and from both end edges of the roll R At both end portions 51b, 51b in the width direction of the wide portion 51 extending outward, the overlapping portions of the wide portion 51 facing each other are joined to form seal portions 53, 53. The edge part along the width direction of the part 51 is fixed by the fixing tape 6.

  The packaging structure 10 of the present embodiment will be described in detail. As shown in FIG. 1, the panty liner 1 has a slightly narrow oval shape in the vicinity of the center in the longitudinal direction in the expanded state of the packaging structure. . The size of the length L in the longitudinal direction and the length W in the width direction (length of the maximum width portion) of the panty liner 1 is not particularly limited, but usually L is about 8 to 18 cm, and W is It is about 4-7 cm.

  As shown in FIG. 2, the panty liner 1 includes a liquid holding layer 2 and a leak-proof layer 3. The liquid holding layer 2 and the leak-proof layer 3 are integrated by a known joining process such as heat embossing. The panty liner 1 having such a configuration can absorb the liquid from the skin contact surface side (the side disposed on the wearer's skin side when worn) and can keep the liquid from leaking.

  The liquid holding layer 2 in the present embodiment includes one or more layers including latent crimpable fibers crimped three-dimensionally. Since the liquid retaining layer is provided with such a layer, the panty liner wound around or folded inside the packaging structure is less likely to be unfolded when opening the seal part. The panty liner can be easily taken out of the packaging structure, and can be attached easily and easily.

  The latent crimpable fiber is a fiber that can be handled in the same manner as a conventional nonwoven fabric fiber before heating, and has a property that a helical crimp is developed and contracted by heating at a predetermined temperature. The latent crimpable fiber includes, for example, an eccentric core-sheath type composite fiber or a side-by-side type composite fiber containing two types of thermoplastic polymer materials having different shrinkage rates as components. Examples of the thermoplastic polymer material include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, and polyamides.

  The content of the latent crimpable fiber is preferably 40 to 100% by weight, more preferably 70 to 100% by weight, based on the weight of the liquid holding layer 2.

  In the present embodiment, as shown in FIG. 5, the liquid retaining layer 2 includes a first fiber layer 21 containing latent crimpable fibers, and a latent crimpable fiber containing no latent crimpable fibers. The first fiber layer 21 and the second fiber layer 22 are partially joined and integrated at the joint 23. The multilayer nonwoven fabric 2 is obtained. An uneven shape is formed on the second fiber layer 22 side of the multilayer nonwoven fabric 2.

  The multilayer non-woven fabric (liquid holding layer) 2 is a state in which the first fiber layer forming material and the second fiber layer forming material are laminated with each other, and both are partially heat-sealed by heat or ultrasonic embossing, This is obtained by manufacturing an intermediate body in which a large number of heat-sealed portions are formed in a dispersed state, and then subjecting the intermediate body to a heat treatment to thermally contract the first fiber layer forming material. As such a multilayer nonwoven fabric, for example, the three-dimensional sheet material described in JP-A-2002-187228 can be preferably used. In addition, this multilayer nonwoven fabric becomes hydrophilic by the hydrophilic treatment by the hydrophilized oil agent given in the stage of the fiber before making it into a nonwoven fabric, or the stage completed as a nonwoven fabric.

  The pressure-sensitive adhesive 4 is for fixing the panty liner 1 to a predetermined portion of the undergarment. In the present embodiment, as shown in FIG. It is applied in the pattern. Thus, since the adhesive is applied in a predetermined pattern over substantially the entire non-skin contact surface side of the absorbent article, the panty liner and the packaging material are integrated via the adhesive, When this integrated product is wound and / or folded to form a roll-shaped product, distortion occurs, and when the panty liner is taken out, the integrated product can easily return to the unfolded state in order to eliminate this distortion. Played. In the application pattern of the pressure-sensitive adhesive in the present embodiment, the pressure-sensitive adhesive application portion formed by continuously or discontinuously applying the pressure-sensitive adhesive along the width direction of the panty liner 1 extends along the longitudinal direction of the panty liner 1. It is a coating pattern formed in multiple rows at predetermined intervals.

  As shown in FIGS. 1 to 3, the packaging material 5 is formed in a vertically long shape as a whole in the unfolded state of the packaging structure, and one longitudinal end of the packaging material 5 has a relatively long width in the width direction. 51, and the other part is a narrow part 52 having a relatively short length in the width direction. Each of the wide portion 51 and the narrow portion 52 has a rectangular shape wider than the panty liner 1. The panty liner 1 is adhered to the central portion in the width direction of the packaging material 5 with an adhesive 4 such that the longitudinal direction and the width direction thereof coincide with the longitudinal direction and the width direction of the packaging material 5, respectively. Accordingly, the “width direction of the wide portion 51” and the “width direction of the narrow portion 52” are the same as the direction perpendicular to the longitudinal direction of the panty liner 1, and are “perpendicular to the width direction of the wide portion 51”. The “direction” and the “direction perpendicular to the width direction of the narrow portion 52” are the same as the longitudinal direction of the panty liner 1.

  The wide part 51 and the narrow part 52 are subjected to a peeling process at least on the part in contact with the pressure-sensitive adhesive 4 and are adhered to the panty liner 1 so as to be peelable. As the release treatment, for example, a silicone resin is used as a release agent, a method of applying the release agent and heat drying or UV treatment, spraying with a release agent, and forming a release agent thin film by various coaters. Methods and the like.

  The wide part 51 is detachably adhered to one side A from the central part in the longitudinal direction on the non-skin contact surface side of the panty liner 1 (the part where the virtual line indicated by CL in FIG. 1 is drawn), and At least a longitudinal end portion on the non-skin contact surface side is covered. In the unfolded state of the packaging structure, the covering portion by the wide portion 51 on the non-skin contact surface side of the panty liner 1 is in a range of 20 to 50% with respect to the entire area of the non-skin contact surface side of the panty liner 1. Preferably there is. On the other hand, the narrow portion 52 is detachably adhered to the other side B from the longitudinal center portion CL at least on the non-skin contact surface side of the panty liner 1 in the unfolded state of the packaging structure. In the present embodiment, the narrow portion 52 is also detachably adhered to a part of one side A, and the remaining portion that is not covered by the wide portion 51 on the non-skin contact surface side of the panty liner 1. Covers the entire area.

The width direction length W1 of the wide portion 51 is preferably in the range of 105 to 160%, more preferably 110 to 150%, with respect to the width direction length W of the panty liner 1.
The width W1 of the wide portion 51 is preferably in the range of 105 to 160%, more preferably 110 to 150%, with respect to the width W2 of the narrow portion 52 in the width direction.

The length L1 in the direction orthogonal to the width direction of the wide portion 51 is preferably in the range of 20 to 60%, more preferably 25 to 40% with respect to the length L in the longitudinal direction of the panty liner 1.
The wide portion 51 has an extending portion extending outward from one end in the longitudinal direction of the panty liner 1 (the portion most protruding in the longitudinal direction), and the extending portion extends in the extending direction. The length L2 (the length of the extending portion in the same direction as the longitudinal direction of the panty liner) is preferably 3 to 15%, more preferably 5 to 10% with respect to the length L of the panty liner 1 in the longitudinal direction. Is in range.

  In this embodiment, the wide part 51 and the narrow part 52 which comprise the packaging material 5 are comprised separately, respectively. That is, the wide portion 51 and the narrow portion 52 are not formed by a single continuous sheet. As shown in FIGS. 2 and 3, the wide portion 51 and the narrow portion 52 have one end edge along the width direction of the narrow portion 52 placed on one end edge along the width direction of the wide portion 51. By being placed, one end portions along the width direction of both are overlapped.

  The packaging structure 10 of this embodiment is obtained as follows, for example. First, in the unfolded state shown in FIG. 1, the other side B (the side where the wide portion 51 is not adhered) from the center portion CL in the longitudinal direction of the panty liner 1 is the inner side of the non-skin contact surface side of the panty liner 1. (With the narrow portion 52 on the inside), and wound integrally with the narrow portion 52 in the longitudinal direction, the state shown in FIG. The other side B of the central portion CL in the longitudinal direction of the panty liner 1 may be folded together with the narrow portion 52 instead of being integrally wound with the narrow portion 52 in this way. However, from the viewpoint of preventing wrinkles from entering the panty liner, it is preferable to wind it integrally without folding it.

  Next, the portion wound as described above is folded back to the skin contact surface side of the panty liner 1, and one side A (the side to which the wide portion 51 adheres) from the longitudinal center portion CL of the panty liner 1. FIG. 4B shows a state in which the non-skin contact surface side of the panty liner 1 is set to the outside (the narrow portion 52 is set to the outside) and is integrally wound together with the narrow portion 52 in the longitudinal direction. To. Thus, the panty liner 1 is integrally wound together with the narrow portion 52 to form a compact roll-shaped object R, and the roll-shaped object R is the central portion in the width direction on the panty liner contact surface side of the wide portion 51. Placed on.

  Then, from the state shown in FIG. 4B, the wide portion 51 is folded in two in a direction (longitudinal direction of the panty liner) perpendicular to the width direction with the panty liner abutting surface side inward. Then, the edges of the overlapping portions of the wide portions 51 facing each other are aligned. Thus, after the wide part 51 is folded in the longitudinal direction of the panty liner 1 with the roll-shaped object R included, the width of the wide part 51 extending outward from both end edges of the roll-shaped object R At opposite end edge portions 51b and 51b, the overlapping portions of the wide portion 51 facing each other are bonded along the respective end edge portions 51b and 51b by a known bonding method such as heat sealing, adhesive, embossing or the like. Thus, the seal portions 53 and 53 are formed. Furthermore, the edge structure part along the width direction of the wide part 51 is fastened with the fastening tape 6, and the packaging structure 10 shown in FIG.4 (c) is obtained.

In the packaging structure 10 thus obtained, the length L3 in the longitudinal direction of the seal portion 53 is preferably 5 to 40 mm, more preferably 10 to 30 mm.
Further, the width W3 of the seal portion 53 is preferably 2 to 10 mm, and more preferably 3 to 7 mm.

  Further, the unfolded state of the packaging structure 10, specifically, the state in which the overlapped portion where the wide portion 51 is joined in the seal portion 53 is peeled off and the wide portion 51 is unfolded (the joined state of the seal portion is destroyed). In a state where the wide portion is unfolded), the length in the longitudinal direction of the portion where the seal portion 53 has been formed (the seal portion forming portion) is 50% or less of the length L in the longitudinal direction of the panty liner 1. Is preferable, and it is still more preferable that it is 30 to 40%. By adjusting the length of the seal part forming part to this ratio with respect to the total length of the panty liner, it becomes possible to wrap the panty liner even more compactly, and at the time of its use, the seal part can be neatly and easily The panty liner can be quickly removed. In the present embodiment, as described above, the seal portion 53 is formed by overlapping and joining the entire edge portion 51b along the direction orthogonal to the width direction of the wide portion 51. In the present embodiment, the length in the longitudinal direction of the seal portion forming portion is equal to the length L1 (the length of the end edge portion 51b) in the direction orthogonal to the width direction of the wide portion 51.

  The shape of the seal portion 53 is not limited to a linear shape that is continuous along a direction orthogonal to the width direction of the wide portion 51 as in the present embodiment. For example, the shape of the seal portion 53 is a discontinuous linear shape including a portion that is not joined. (Dotted line shape) may be sufficient. In the case of such a broken-line seal portion, the above-mentioned “length in the longitudinal direction of the seal portion forming portion” means a value obtained by summing the lengths in the longitudinal direction of the joined portions.

  According to the packaging structure 10 of the present embodiment, since the panty liner 1 is individually packaged as described above using the packaging material 5 including the wide portion 51 and the narrow portion 52, the packaging structure can be made compact. As shown, the panty liner can be quickly taken out and attached. In particular, in the packaging structure 10 of this embodiment, the length of the seal portion forming portion is 50% or less of the length in the longitudinal direction of the panty liner, and the packaging structure is completed (FIG. 4C). In this state, the length of the seal portion is shorter than the length of the seal portion in the conventional packaging structure of this type, so that the overlapping portion of the wide portion of the seal portion can be easily and quickly peeled off. The panty liner is taken out quickly.

  Moreover, in the packaging structure 10 of this embodiment, the roll-shaped object R is the other side B (side where the wide part 51 is not adhere | attached) from the longitudinal direction center part CL of the panty liner 1, as mentioned above. After winding or folding together with the narrow portion 52 with the non-skin contact surface side inside, the wound or folded portion is folded back to the skin contact surface side of the panty liner 1, and then the panty liner 1 Is formed by winding one side A (the side to which the wide portion 51 is adhered) of the center portion CL in the longitudinal direction with the non-skin contact surface side outward. Since the panty liner 1 is folded during the forming process, the panty liner 1 is not folded as in the prior art, and the panty liner is simply wound or folded together with the packaging material in one direction. liner Faster recovery from rolling state to the deployed state, Therefore, it hardly attached like wrinkles folded panty liner, it is possible to take out the pantiliners quickly, it is possible to perform mounting operation smoothly.

Hereinafter, the forming material of the packaging structure 10 of this embodiment will be described.
As the liquid holding layer 2 constituting the panty liner 1, a laminate of a liquid permeable top sheet and a liquid holding absorber can be used instead of the multilayer nonwoven fabric 2 described above. As the surface sheet, non-woven fabrics, perforated films, laminates thereof and the like obtained by various production methods can be used. As the absorber, a fiber aggregate such as pulp fiber or a combination of this and a water-absorbing polymer can be used. Further, as the absorbent body, absorbent sheets such as absorbent paper, dry pulp sheets, stacked sheet-like pulp webs, absorbent polymer sheets (composed of nonwoven fabric, paper, superabsorbent polymer, etc.) can be used.

  As the leak-proof layer 3 constituting the panty liner 1, various sheet materials conventionally used as a back sheet for absorbent articles such as panty liners and sanitary napkins can be preferably used. For example, a polyethylene film, a polypropylene film, a polyester film, etc. can be used. A highly water-resistant sheet such as an SMS nonwoven fabric can also be used.

  As the adhesive 4, various adhesives used for forming an adhesive part of an absorbent article such as a panty liner or a sanitary napkin can be used without particular limitation. For example, styrene-butadiene copolymer, styrene -An isoprene copolymer etc. are mentioned.

  As the packaging material 5 (the wide part 51 and the narrow part 52), for example, polypropylene, polyester, polyethylene, polyvinyl alcohol, paper, a nonwoven fabric such as an SMS nonwoven fabric, or a composite material thereof can be used.

  In particular, when the wide portion and the narrow portion are configured separately as in the above-described embodiment, the narrow portion is preferably formed from an elastic material. By using the narrow portion formed of an elastic material, the recovery of the panty liner that has been wound or folded together with the narrow portion inside the packaging structure is restored to the elastic repulsive force of the narrow portion. Therefore, the panty liner can be taken out quickly. As the elastic material, for example, polyurethane, polyvinyl acetate, foamed polyethylene, or the like can be used. Moreover, the thickness of the narrow part formed from an elastic material is preferably 0.5 to 2 mm from the viewpoint of ensuring the above effects without impairing compact individual packaging. The wide portion need not be formed from such an elastic material.

As mentioned above, although embodiment of this invention was described, this invention is not restrict | limited to embodiment mentioned above, A various change is possible in the range which does not deviate from the meaning of this invention.
For example, in the above-described embodiment, the wide portion 51 and the narrow portion 52 constituting the packaging material 5 are configured separately, but the packaging material 5 is formed by a single continuous sheet and wide. The part 51 and the narrow part 52 need not be separated.

  When the wide part 51 and the narrow part 52 are separate, the wide part 51 and the narrow part 52 can be joined by ultrasonic joining or application of a hot melt adhesive. In the case of folding at two or more fold lines along the width direction, it has a function of a flexible shaft and can prevent entry of dust. Further, when the wide portion 51 is folded along a single fold line along the width direction, it is preferable that the shape of the seal portion is L-shaped so that dust or the like does not enter the packaging structure.

  Further, the absorbent article according to the present invention may be a sanitary napkin, an incontinence pad, or the like in addition to the above-described panty liner (orimono sheet). In addition, when the absorbent article includes a wing portion extending outward in the width direction from both side portions along the longitudinal direction, the wing portion is formed from an elastic material. The recovery of the absorbent article that has been wound or folded inside the packaging structure to the expanded state is further accelerated by the elastic repulsive force of the wing portion, and the absorbent article can be quickly removed. It becomes like this. As the elastic material, the same materials that can be used for the narrow portion described above can be used.

It is a top view showing the state where the packing structure of the absorptive article of one embodiment of the present invention was developed and this was seen from the absorptive article (panty liner) side. It is a longitudinal cross-sectional view which shows typically the XX sectional view of FIG. It is a top view which shows the state which looked at the packaging structure of the unfolding state shown in FIG. 1 from the packaging material side. FIG. 4A and FIG. 4B are perspective views showing a state in which the absorbent article in the unfolded state shown in FIG. 1 is wound, FIG.4 (c) is a perspective view of the packaging structure of the absorbent article of one Embodiment of this invention. FIG. 3 is an enlarged cross-sectional view of a part of a portion (liquid holding layer) surrounded by a YY line in FIG. 2.

Explanation of symbols

1 Panty liner (Orimono sheet)
2 Liquid retaining layer 3 Leak-proof layer 4 Adhesive 5 Packaging material 6 Fastening tape 10 Packaging structure 51 Wide part 52 Narrow part 53 Seal part R Roll-like material

Claims (6)

A panty liner packaging structure comprising: a panty liner; and a non-skin contact surface side of the panty liner that is peelably adhered via an adhesive, and a packaging material for packaging the panty liner,
The packaging material is composed of a wide part wider than the panty liner and a narrow part narrower than the wide part, and is formed in a vertically long shape in the expanded state of the packaging structure, and its longitudinal direction One end side is the wide part, the other part is the narrow part,
The panty liner has its longitudinal direction and width direction matched to the longitudinal direction and width direction of the packaging material, respectively, and is adhered to the central portion in the width direction of the packaging material so as to be peelable by the adhesive,
The wide part and the narrow part are separate from each other, and the wide part is made of polypropylene, polyester, polyethylene, polyvinyl alcohol, paper, nonwoven fabric, or a composite material thereof, and the narrow part is elastic. Formed from material,
The panty liner is integrally wound in the longitudinal direction of the panty liner and / or folded together with the narrow portion to form a roll-like material, and the wide portion includes the roll-like material. In the width direction both ends of the wide portion that is folded in the longitudinal direction of the panty liner and extends outward from the both ends of the roll-like material, the overlapping portions of the wide portions facing each other are joined. Panty liner packaging structure in which a sealing part is formed. In the unfolded state of the packaging structure, the longitudinal direction of the portion forming the seal portion is the longitudinal direction of the panty liner, and the length of the portion is 50% of the length of the panty liner in the longitudinal direction. The packaging structure for a panty liner according to claim 1, wherein:   The said panty liner is equipped with the liquid holding layer and the leak-proof layer, and this liquid holding layer is equipped with one or more layers containing the latent crimpable fiber crimped three-dimensionally. Panty liner packaging structure.   The said adhesive is the packaging structure of the panty liner in any one of Claims 1-3 apply | coated with the predetermined pattern to the substantially whole area by the side of the non-skin contact surface of the said panty liner.   In the unfolded state of the packaging structure, the wide portion sticks to one side of the panty liner on the non-skin contact surface side in the longitudinal direction so as to be peelable, and at least the non-skin contact surface side in the longitudinal direction. The panty according to any one of claims 1 to 4, wherein one end portion is covered, and the narrow portion adheres to the other side at least from the central portion in the longitudinal direction on the non-skin contact surface side. Liner packaging structure.   The roll-like product is wound or folded with the narrow portion on the other side from the longitudinal center of the panty liner with the non-skin contact surface side of the panty liner inside, and then the panty liner The packaging structure for a panty liner according to claim 5, which is obtained by winding one side from the longitudinal center with the non-skin contact surface side of the panty liner facing outward.

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