JP2006340982A - Individually packaged absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain the sanitary condition of a pad by covering the surface sheet completely, while enabling it to be taken out easily and eliminating individual packaging failure which arises in the manufacturing line. <P>SOLUTION: The packaging sheet 10 is an approximately rectangular shape made of a pair of longitudinal rims 11a and 11b and a pair of short rims 12a and 12b, the side of the sheet attaching to the pad is processed for separation and a perforated line 16 is formed along the longitudinal rim at the position near the longitudinal end 11b. A pad 1 is placed on the surface processed for separation of the packaging sheet 10, both the sides of the longitudinal ends of the packaging sheet are folded to the side of the liquid permeable front sheet 3 one on another. In this state, the perforated line 16 of the packaging sheet 10 is located in approximately the middle of the pad 1. The overlapped part is bonded with a linear adhesion 14 and the short rim ends 12a and 12b on the front and back ends are sealed with the heat seal 17. The packaging sheet 10 and the pad 1 are folded in the longitudinal direction one on another and bonded with a tag tape 15. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an absorbent article individually packaged with a packaging sheet.

  Conventionally, as an absorbent article N such as a sanitary napkin, a panty liner, a cage sheet, an incontinence pad, for example, as shown in FIG. 10, a liquid-impermeable back sheet 50 made of a polyethylene sheet or a polyethylene laminated nonwoven fabric, for example. And an absorbent body 52 made of cotton-like pulp or the like is known between a non-woven fabric or a liquid-permeable surface sheet 51 made of a porous plastic sheet.

  As this type of absorbent article N, in order to prevent misalignment in the mounted state, for example, one or a plurality of adhesive layers 53 on the non-skin contact surface side (the outer surface of the liquid-impermeable back sheet 50), 53, and the wing-shaped flaps W, W extending outward from both side edges in the longitudinal direction of the napkin body are integrally formed, and the liquid-impervious back sheet 50 of the wing-shaped flaps W, W is formed. There is one in which the pressure-sensitive adhesive layers 54 are provided on the side surface (outer surface).

  When the absorbent article N is fixed to the undergarment 30, as shown in FIG. 15, the absorbent article N is locally applied and the wing-shaped flaps W, W protruding laterally are taken out from the underwear, The wing-shaped flaps W, W are folded at the folding lines RL, RL, and are adhered to the outer surface of the crotch portion of the underwear 30 while winding the crotch portion of the underwear.

  On the other hand, when the absorbent article N is individually packaged, the pressure-sensitive adhesive layers 53, 54, ... are covered with a release sheet made of paper or a film, and a packaging sheet is disposed on the outer surface side of the absorbent article N, The napkin N, the release sheet, and the packaging sheet are all tri-folded or quarter-folded in the longitudinal direction, the side edge portion is heat-sealed, and the opening portion is fastened with a tag tape or the like.

  However, in the case of the above packaging form, it is necessary to heat-seal the side edge of the packaging sheet, so an extra step is required and the heat-sealing cost protrudes to the side. In addition to problems such as being unable to be made into a product, both the release sheet and the packaging sheet become garbage during use, resulting in a lot of waste of resources.

  Thus, in recent years, various types of packaging structures for directly packing a napkin main body with a packaging sheet have been proposed as individual packaging structures that are made compact while eliminating the release sheet. For example, in the following Patent Document 1, as shown in FIG. 11, after placing on a packaging material 57 having a size larger than the outer shape of the napkin N, both side portions positioned on the long side of the packaging material 57 are arranged in the long side direction. Folded inward along the napkin, and then the end portions on the short side of the napkin N are sequentially folded inward along the short side at the fold lines (1) and (2). An individual packaging structure that is fixed and packaged at 58 or the like has been proposed.

  Moreover, in the following Patent Document 2, as shown in FIG. 12, in the sanitary napkin 61 having a longitudinal center line 59, two longitudinal edges 58, 58, and two lateral edges 60, 60, The sanitary napkin 61 includes a liquid-permeable top sheet 63, a liquid-impermeable back sheet 62 that is joined to at least a part of the outer periphery of the top sheet 63, and has an inner surface and an outer surface that face each other. At least one adhesive patch attached to the outer surface of the backsheet 62, and an absorbent core 64 disposed between the topsheet 63 and the backsheet 62, wherein the sanitary napkin 61 is mutually Are folded inward with respect to the top sheet 63 along two lateral fold lines 65, 65 separated from each other, and a central portion, an inner member, and an outer member. And two flaps 66, 66 are provided, each flap 66 having a proximal end joined to one longitudinal edge of the central portion of the sanitary napkin. Extending outwardly from the distal end to the distal end, each flap 66 has two opposing surfaces, the first surface is generally the same extension as the topsheet 63, and the second surface is the backsheet. 62 and substantially the same extension as the back sheet 62, and the second surface of the extension that is substantially the same as the back sheet 62 is provided with an adhesive patch 67 thereon, and the flap 66 is folded on the top sheet 63. A release trumpet 68 that is juxtaposed with the lateral edge of the sanitary napkin 61 at one end, is detachably fixed to the adhesive of the backsheet 62, and has two longitudinal edges; Serial encasing the release of wrapper 68 in the longitudinal direction around the edge C- folds like the sanitary napkin 61, the individually packaged structure with a three-fold in the longitudinal direction has been proposed.

Furthermore, in the following Patent Document 3, as shown in FIGS. 13 and 14, a body fluid-absorbing absorption layer 72 is interposed between a water-permeable surface sheet 70 and a water-impermeable leak-proof sheet 71. The napkin main body 73 is formed, and a fastening portion to the inner surface of the shorts is formed on the outer surface of the leak-proof sheet 71 of the napkin main body 73. Formed on one side of an individual film 74 that is formed wider than the main body and cut out at four corners to provide a notch, and the individual film 74 and the napkin main body 73 are connected to the napkin main body from both sides in the width direction. , The both ends of the individual film 74 in the length direction are fixed by heat fusion 75, and both ends of the napkin main body 73 are exposed from the notches 73a, 73a. Either end of this length or Individual packaging structure in which individual packaging film 74 and the napkin body 73 in direction folded inwardly and fastened to intersect the folded edge of the of the folded has been proposed.
Japanese Patent Laid-Open No. 9-94267 Japanese Patent No. 3100630 JP-A-9-266828

  However, in the individual packaging structure described in Patent Document 2, the packaging material (releasable trumpet 68) is in the vicinity of the side edge in the longitudinal direction of the napkin 61 with both sides in the longitudinal direction of the napkin folded inward as illustrated. Since the top sheet 63 has a structure in which most of the top sheet 63 is exposed, when the napkin is used, when the trifold in the longitudinal direction of the napkin is opened, the surface of the top sheet 63 is suddenly exposed. This will create an opportunity for hands and others to touch carelessly, and it will not give the user a sense of hygiene.

  In the individual packaging structure described in Patent Document 3, the individual packaging film 74 and the napkin main body 73 are overlapped at the stage where the napkin main body 73 is disposed inside from both sides in the width direction and folded, and the top sheet 70 is almost overlapped. Since the entire surface is covered, the topsheet 70 is not inadvertently exposed, so that it is difficult for the hand to contact the topsheet 70 and a clean feeling can be secured. Since the cutouts 73a are provided at the four corners of the individual film 74, an opening is formed, and the tip of the napkin body 73 is exposed from the opening. By pulling in the direction facing the packaging film 74, the napkin main body 73 can be easily peeled off and removed from the individual packaging film 74, and it is not necessary to release the packaging film 74 in the width direction, enabling simple removal. (See paragraphs [0014] to [0015]).

  However, even in the individual packaging structure described in Patent Document 3, the front and rear end portions of the napkin at the stage where the individual packaging film 74 and the napkin main body 73 are folded back by arranging the napkin main body 73 inward from both sides in the width direction. A part of is exposed, and complete hygienic condition cannot be ensured.

  In the case of the individual packaging structure described in Patent Document 3, the napkin main body 73 is disposed on the inner side from both sides in the width direction and folded, and then both ends in the length direction of the individual packaging film 74 are heated and fused 75. Since the shape is held so that the folding in the width direction does not spread, and the side part is not completely sealed in the individual packaging state, it is only folded so that dust etc. There is a possibility of entering from the gap, and the top sheet 70 cannot be kept in a complete hygienic state. Furthermore, both ends in the length direction of the individual packaging film 74 are fixed by heat fusion 75, 75. However, it is not stopped at other intermediate portions, and there is a problem that an opening occurs in the packaging film 74 during the production line, resulting in individual packaging defects.

  Therefore, the main problem of the present invention is that the absorbent article can be folded and accommodated in a compact manner, and the surface sheet is completely covered and kept in a hygienic state while allowing easy removal of the napkin, and in the production line. An object of the present invention is to provide an individual absorbent article that eliminates the problems of individual packaging that occur.

In order to solve the first problem, as the present invention according to claim 1, an absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and an anti-slip adhesive layer is formed on the outer surface of the back sheet. The absorbent article body comprising the absorbent article body and a packaging sheet for individually packaging the absorbent article body,
The packaging sheet is a substantially rectangular sheet defined by a pair of left and right long side edges corresponding to the longitudinal direction of the absorbent article and a pair of left and right short side edges corresponding to the short direction of the absorbent article. And an opening line along the longitudinal side edge direction is formed at a position near the longitudinal side edge on one side,
The absorbent article main body is disposed on the packaging sheet, and the both sides of the longitudinal side edge side of the packaging sheet are sequentially folded to the liquid-permeable surface sheet side. Then, in the overlapping margin part of the both sides of the long side edge side, the long side edge side both side parts are bonded to each other by the linear adhesive provided along the long direction, and the short side edge parts of the front and rear ends are blocked. Furthermore, the individual absorbent article is characterized in that the packaging sheet and the absorbent article are both folded in the longitudinal direction and fastened together.

  In the present invention described in claim 1, first, the packaging sheet comprises a pair of left and right long side edges corresponding to the longitudinal direction of the absorbent article, and a pair of left and right short side edges corresponding to the short direction of the absorbent article. And a substantially rectangular sheet defined by. And the opening line of a perforation etc. is formed along the longitudinal side edge direction in the position near the longitudinal side edge of one side.

  In individual packaging, the absorbent article main body is disposed on the packaging sheet, and the longitudinal side edge side both side portions of the packaging sheet are sequentially folded to the liquid-permeable surface sheet side. In this state, the unwrapping line of the packaging sheet is positioned substantially at the center of the absorbent article. And in the overlap margin part of the long side edge side both side parts, while adhering the long side edge side both side parts to each other by a linear adhesive provided along the longitudinal direction, heat seal or short side edge part of the front and rear ends After sealing with an adhesive or the like, both the packaging sheet and the absorbent article are sequentially folded in the longitudinal direction and fastened with a tag tape or the like.

  Therefore, in use, the absorbent article can be kept in a sanitary state because it is completely sealed until the opening line is opened. In use, the folding of the absorbent article and the packaging sheet in the longitudinal direction can be released to the unfolded state, the opening line can be opened, and the absorbent article can be easily taken out. Furthermore, since the said line-shaped adhesive joins the longitudinal side edge side both side parts of a packaging sheet exactly in a production line, generation | occurrence | production of an individual packaging defect can be eliminated.

  As the present invention according to claim 2, the absorbent article main body includes a wing-shaped flap that protrudes laterally from the side edge in the longitudinal direction and is fixed so as to involve the crotch portion of the underwear when worn. The wing-shaped flap has a liquid-impervious back sheet side surface and a wings-stop adhesive layer, and the folding sheet is folded in order on the liquid-permeable surface sheet side on both sides of the longitudinal side edge side of the packaging sheet. The individual absorbent article according to claim 1, wherein the absorbent article is folded toward the liquid-permeable surface sheet.

  The invention according to claim 2 is intended to individually package an absorbent article having a wing-shaped flap protruding laterally from a longitudinal side edge of the absorbent article. In this case, the longitudinal direction of the packaging sheet It is desirable to fold the wing-shaped flap to the liquid-permeable surface sheet side when folding both side edges.

  According to a third aspect of the present invention, the line-shaped adhesive is a continuous line-shaped adhesive or an intermittent line-shaped adhesive, and the longitudinal side edge side both side portions are bonded so as not to be peeled off. The individual absorbent article as described in any one of -2 is provided. The line adhesive may be continuous or intermittent. The line-shaped adhesive is preferably one that adheres both sides of the folded long side edge side so as not to be peeled off.

  As the present invention according to claim 4, the opening line is a perforation formed over substantially the entire length of the longitudinal side edge of the packaging sheet, or a perforation formed over a partial range. The individually packaged absorbent article according to any one of -3 is provided.

  As the present invention according to claim 5, the unsealing absorption according to any one of claims 1 to 4, wherein the unsealing line is formed with slits for assisting unsealing on both sides of the unsealing line at the start end and / or the end. A sex article is provided.

  According to a sixth aspect of the present invention, there is provided the individual absorbent article according to any one of the first to fifth aspects, wherein the unsealing line is formed by two perforations formed at a distance in the lateral direction. Is done.

  The above claims 4 to 6 define the form of the opening line. The opening line may be a perforation formed over substantially the entire length of the longitudinal side edge of the packaging sheet, or a perforation formed over a partial range. In order to facilitate the opening, slits for opening assistance may be formed on both sides of the opening line at the beginning and / or end of the opening line. Furthermore, it can also be set as two perforations formed apart from each other in the lateral direction. In this case, it can be opened by picking the front and rear ends between the two perforations and tearing off the portions along the perforations.

  As this invention which concerns on Claim 7, the mold release process is given to the area | region corresponding to the said slip prevention adhesive layer area | region at least in the absorbent article contact surface side of the said packaging sheet. The individual absorbent article described in 1. is provided. In this case, it is possible to omit the release sheet that covers the misalignment prevention adhesive layer. By eliminating the release sheet, it is possible to reduce the bulk and make it compact in a folded state.

  As described in detail above, the absorbent article can be folded compactly and stored. Furthermore, while enabling easy removal of the napkin, the top sheet can be completely covered in the packaged state and can be maintained in a hygienic state, and individual packaging defects occurring in the production line can be eliminated.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a partially broken development view of a sanitary napkin 1 according to the present invention, FIG. 2 is a rear view thereof, and FIG. 3 is a separation view of the napkin 1 and a packaging sheet 10.

  The sanitary napkin 1 includes a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, etc., a liquid-permeable front sheet 3 that allows permeation of menstrual blood, cages, etc. The absorbent body 4 is made of cotton-like pulp or synthetic pulp, and the side nonwoven fabrics 5 and 5 are formed on both sides of the surface along the longitudinal direction. The wing-shaped flaps W and W are formed by the bonded portion of the back sheet 2 and the side nonwoven fabric 5 so as to protrude laterally and be fixed so as to entrain the crotch portion of the underwear when worn. The absorbent body 4 can be surrounded by crepe paper for shape retention and diffusibility improvement.

  Around the absorber 4, at the upper and lower edge portions, the outer edge portions of the liquid-impervious back sheet 2 and the liquid-permeable surface sheet 3 are joined by an adhesive such as hot melt or an adhesive means such as heat seal. In addition, the liquid-impervious back sheet 2 and the side nonwoven fabric 5 that extend laterally from the absorbent body 4 at both side edges thereof are bonded by an adhesive such as hot melt or an adhesive means such as heat seal. Has been.

Hereinafter, the structure of the sanitary napkin 1 will be described in detail.
As the liquid-impermeable back sheet 2, a sheet material having at least water shielding properties such as an olefin resin sheet such as polyethylene or polypropylene is used. In addition, a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, or A nonwoven fabric sheet (in this case, the waterproof film and the nonwoven fabric constitute a liquid-impervious back sheet) can be used after substantially impervious to liquid imperviousness by interposing a waterproof film. In recent years, those having moisture permeability tend to be used from the viewpoint of preventing stuffiness. This water- and moisture-permeable sheet material is a microporous sheet obtained by forming a sheet by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretching in a uniaxial or biaxial direction. It is.

  Next, as the liquid-permeable surface sheet 3, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. Examples of the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a lace method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft. The absorbent body 4 interposed between the liquid-impervious back sheet 2 and the liquid-permeable top sheet 3 is made of, for example, fluffy pulp and a water-absorbing polymer. The water-absorbing polymer is mixed in the pulp constituting the absorber, for example, as granular powder. Examples of the pulp include chemical fibers obtained from wood, cellulose fibers such as dissolving pulp, and artificial cellulose fibers such as rayon and acetate. Softwood pulp having a longer fiber length than hardwood pulp functions and It is preferably used in terms of price. When the crepe paper surrounding the absorber 4 is provided as in this example, the crepe paper intervenes between the liquid-permeable surface sheet 3 and the absorber 4 as a result, and the absorbency is excellent. The crepe paper quickly diffuses body fluid and prevents reversal of these menstrual blood and the like.

  On the other hand, side nonwoven fabrics 5 and 5 are provided on both sides of the sanitary napkin 1 along the longitudinal direction and over almost the entire length of the napkin 1, respectively. Wing-like flaps W, W are formed by a part of the liquid-impervious back sheet 2 that extends sideways and also extends sideways.

  As the side nonwoven fabric 5, a water-repellent treated nonwoven fabric or a hydrophilic treated nonwoven fabric can be used from the viewpoint of an important function. For example, if importance is placed on functions such as preventing permeation of menstrual blood or vaginal discharge, or enhancing the touch feeling, water repellent treatment coated with silicon, paraffin or alkylchromic chloride water repellent It is desirable to use a nonwoven fabric. Further, if importance is attached to the absorption of menstrual blood and the like in the wing-shaped flaps W, W, a method of polymerizing a compound having a hydrophilic group, for example, an oxidation product of polyethylene glycol, in the process of producing a synthetic fiber, , By treating with a metal salt such as stannic chloride, partially dissolving the surface to make it porous, and depositing metal hydroxides to swell or make the synthetic fiber porous, applying capillary action to make it hydrophilic It is desirable to use a hydrophilic non-woven fabric provided with water.

  As shown in FIG. 2, the non-skin contact surface of the main body part in which the absorbent body 4 is interposed between the liquid-permeable top sheet 3 and the liquid-impervious back sheet 2 is for fixing to the underwear. A plurality of strips, in the illustrated example, three strip displacement preventing adhesive layers 7, 7... Are formed by an appropriate coating pattern. A wings-stopping adhesive layer 8 is formed on the surface of the wing-shaped flaps W, W on the liquid-impermeable back sheet 2 side.

  As the pressure-sensitive adhesive that forms the anti-displacement pressure-sensitive adhesive layers 7 and 8, for example, a styrene-based polymer, a tackifier, or a plasticizer that is a main component is preferably used. Examples of the styrenic polymer include styrene-ethylene-butylene-styrene block copolymers, styrene-butylene-styrene block copolymers, and styrene-isobutylene-styrene copolymers. It may be used or two or more polymer blends. Among these, a styrene-ethylene-butylene-styrene block copolymer is preferable in terms of good thermal stability. Further, as the tackifier and the plasticizer, those which are solid at room temperature can be preferably used. Examples of the tackifier include C5 petroleum resins, C9 petroleum resins, dicyclopentadiene petroleum resins, and rosin petroleum resins. Polyterpene resin, terpene phenol resin, and the like. Examples of the plasticizer include monomer plasticizers such as trifresil phosphate, dibutyl phthalate and dioctyl phthalate, and polymer plasticizers such as vinyl polymers and polyesters. It is done.

  As shown in FIG. 3, the packaging sheet 10 for individually mounting the sanitary napkin 1 corresponds to a pair of left and right long side edges 11 a and 11 b corresponding to the longitudinal direction of the napkin 1, and a short direction of the napkin 1. The sheet is a substantially rectangular sheet defined by a pair of left and right short side edges 12a and 12b. In terms of material, paper or plastic film can be used, but it is preferably a thin and highly flexible plastic film. As shown in FIG. 4, the longitudinal dimension is slightly longer than the overall length dimension of the napkin 1, so that the heat seal allowance described later is secured on the front side and the rear side, and the short dimension is the folded portion. Therefore, it is desirable that the size is sufficient to cover most of the top sheet 3. And the perforation 16 is formed in the sheet | seat part which covers the surface sheet 3, ie, the one side edge side 11b side of the said packaging sheet 10, covering the substantially full length of the side edge 11a, 11b.

  On the contact surface of the packaging sheet 10 on the napkin 1 side, at least a region corresponding to the formation range of the anti-displacement adhesive layers 7, 7,... The release treatment can be formed by applying or spraying a release treatment liquid such as silicone resin, fluorine resin, or ethylene tetrafluoride resin.

  In addition, a line-shaped adhesive 14 provided along the longitudinal direction is provided on the outer surface side of the packaging sheet 10 and in the vicinity of the other side long side edge, and substantially the center of the short side edge 12a. Is provided with a tag tape 15. The tag tape 15 is a member made of paper, plastic film, or the like. The base end side is bonded to the packaging sheet 10 so as not to be peeled off, a peelable adhesive layer is provided on the protruding portion, and the tip portion is non-adhesive. The knob part is formed.

  In order to individually package the sanitary napkin 1 described above, as shown in FIG. 4, the napkin 1 is biased toward the release processing surface side of the packaging sheet 10, and the one side long side edge 11 a side of the packaging sheet 10 is biased. Arrange in the state of letting. In the example of illustration, it arrange | positions in the state which made the outer edge of the one side wing-like flap W of the napkin 1 substantially correspond to the one side long side edge 11a.

  From the state shown in FIG. 4, first, as shown in FIG. 5, the one side longitudinal side edge 11 a side portion of the packaging sheet 10 on the side where the line-shaped adhesive 14 is provided is folded along the fold line A together with the wing-like flap W. It is made to fold to the surface sheet 3 side. Here, the position of the fold line A is not the side flap of the napkin body in the illustrated example, but is the base end of the wing-shaped flap W. Is also possible. Moreover, you may make it fold including a part of absorber side edge.

  Next, as shown in FIG. 5, the other long side edge 11 b side portion of the packaging sheet 10 is folded along the fold line B together with the wing-shaped flap W to the surface sheet 3 side. In this state, as shown in FIG. 6, it is desirable that the perforation 16 formed in the packaging sheet 10 is located at the approximate center of the napkin 1. In addition, the other side long side edge 11b side portion folded in the rear order is adhered to the outer surface of the one side long side edge 11a side portion folded in advance so as not to be peeled off, The front and rear ends of the packaging sheet 10 are sealed with heat seals 17 and 17. In this state, the napkin 1 is packaged in a state of being completely sealed by the packaging sheet 10. The line-like adhesive 14 is fixed to the long side edge 11a on one side in the product state, but is provided on the surface on the mold release side of the long side edge 11b on the other side in the production line. It is desirable that the side edge 11b is superimposed on the one side long side edge 11a so as to be transferred to the one side long side edge 11a side. The line adhesive 14 may be a continuous line or an intermittent line.

  When the folding in the width direction of the napkin 1 and the packaging sheet 10 is completed, as shown in FIG. 6, it is a direction along the short side edges 12 a and 12 b of the packaging sheet 10, and closer to the rear side of the napkin 1. After folding both the rear side of the napkin 1 and the short side edge 12b side portion of the packaging sheet 10 to the surface sheet 3 side at the position of the folding line C set at the position (approximately 1/3 division position in the longitudinal direction) ( 7), as shown in FIG. 7, the position along the short side edges 12a and 12b of the packaging sheet 10 and closer to the front side of the napkin 1 (approximately 1/3 divided position in the longitudinal direction) Folding the rear side of the napkin 1 and the short side edge 12a side of the packaging sheet 10 at the position of the folding line D set to), the tag tape 15 provided on the short side edge 12a is attached to the outer surface of the packaging sheet 10. Adhere to peelable and fold Fold to hold the shape.

  In the case of such an individual absorbent article, when the tag tape 15 is removed in use and the folding of the napkin 1 in the longitudinal direction is released and the unfolded state shown in FIG. 6 is obtained, the perforation 16 is opened and the napkin is opened. 1 is taken out.

  As described above, the perforation 16 is formed over almost the entire length of the longitudinal side edges 11a and 11b of the packaging sheet 10, and is formed over a partial range as shown in FIG. 9 (A). It can also be perforated 16 '. Further, as shown in FIG. 9B, the opening assisting slits 18 and 18 are formed on both sides of the perforation 16 at the start and / or end of the perforation 16 so that the perforation 16 can be easily opened. Can also be formed. In opening, the perforation 16 is opened by inserting a finger through the opening assisting slit 18. Furthermore, as shown in FIG. 9 (C), two perforations 16 and 16 formed apart from each other in the lateral direction may be used. In this case, it is desirable to form a tab 16a serving as a tab allowance at the start and / or end of the perforations 16, 16. The tab 16 a is picked and pulled in the direction of the perforations 16, 16, and the narrow portion sandwiched between the two perforations 16, 16 is torn off to open the tab 16 a.

[Other examples]
(1) In the above embodiment, the longitudinal side edges 11a and 11b of the packaging sheet 10 are folded in order, and then folded in the longitudinal direction. However, depending on the napkin size, they may be folded in four or in two. Good.
(2) In the above embodiment, the napkin 1 has a structure having the wing-shaped flaps W, W on both sides. However, the napkin can be similarly applied even to a napkin having no wing-shaped flap. .
(3) Although the short side edge of the packaging sheet 10 is sealed with the heat seal 17 in the above embodiment, it may be sealed with an adhesive so that it cannot be peeled off.
(4) In the above embodiment, in order to suppress the generation amount of dust, the packaging sheet 10 is subjected to release treatment and the release sheet is omitted. However, the packaging sheet 10 is not subjected to release treatment, and the release sheet is used to prevent misalignment. The agent layers 7 and 8 may be covered.

It is a partial fracture development view of sanitary napkin 1 concerning the present invention. FIG. 2 is a separation view of the napkin 1 and the packaging sheet 10. FIG. It is a top view which shows individual packaging procedure (the 1). It is a top view which shows individual packaging procedure (the 2). It is a top view which shows individual packaging procedure (the 3). It is a top view which shows individual packaging procedure (the 4). It is a top view which shows individual packaging procedure (the 5). (A)-(C) are figures which show the modification of a perforation formation aspect. It is an expanded view of the conventional sanitary napkin N. It is a procedure figure which shows the conventional individual packaging method. It is a top view which shows the conventional individual packaging method. It is a perspective view (the 1) which shows the conventional individual packaging method. It is a perspective view (the 2) which shows the conventional individual packaging method. It is a perspective view which shows the attachment point of a napkin.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Sanitary napkin, 2 ... Liquid-impermeable back sheet, 3 ... Liquid-permeable surface sheet, 4 ... Absorber, 5 ... Side nonwoven fabric, 7 ... Main body slip prevention adhesive layer, 8 ... Wings slip prevention adhesive layer DESCRIPTION OF SYMBOLS 10 ... Packaging sheet, 11a * 11b ... Long side edge, 12a * 12b ... Short side edge, 13a-13d ... Notch part, 14 ... Line-like adhesive, 15 ... Tag tape, 16 ... Perforation, 17 ... Heat seal, AD ... Folding line, W ... Wing flap

Claims (7)

An absorbent article body in which an absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and an anti-displacement adhesive layer is formed on the outer surface of the back sheet, and a packaging sheet for individually mounting the absorbent article body An individual absorbent article comprising:
The packaging sheet is a substantially rectangular sheet defined by a pair of left and right long side edges corresponding to the longitudinal direction of the absorbent article and a pair of left and right short side edges corresponding to the short direction of the absorbent article. And an opening line along the longitudinal side edge direction is formed at a position near the longitudinal side edge on one side,
The absorbent article main body is disposed on the packaging sheet, and the both sides of the longitudinal side edge side of the packaging sheet are sequentially folded to the liquid-permeable surface sheet side. Then, in the overlapping margin part of the both sides of the long side edge side, the long side edge side both side parts are bonded to each other by the linear adhesive provided along the long direction, and the short side edge parts of the front and rear ends are blocked. Further, the individual absorbent article, wherein the packaging sheet and the absorbent article are both folded in the longitudinal direction and fastened together.   The absorbent article main body includes a wing-shaped flap that protrudes laterally from the side edge in the longitudinal direction and is fixed so as to involve the crotch portion of the underwear when worn, and the liquid-impermeable back surface of the wing-shaped flap The sheet side surface is provided with a wings prevention adhesive layer, and the wing-shaped flaps are folded to the liquid permeable surface sheet side when the longitudinal side edge side both side portions of the packaging sheet are sequentially folded to the liquid permeable surface sheet side. The individually absorbent article according to claim 1, wherein   The said line-shaped adhesive agent is made into the continuous line-shaped adhesive agent or the intermittent line-shaped adhesive agent, and the longitudinal side edge side both-sides part of the said packaging sheet is adhere | attached so that peeling is impossible. Individual absorbent article.   The individual packaging according to any one of claims 1 to 3, wherein the opening line is a perforation formed over substantially the entire length of the longitudinal side edge of the packaging sheet, or a perforation formed over a partial range. Absorbent article.   The individually opened absorbent article according to any one of claims 1 to 4, wherein the opening line is formed with slits for opening assistance on both sides of the opening line at a start end and / or a terminal end.   The individually-sealed absorbent article according to any one of claims 1 to 5, wherein the opening line is two perforations formed at a distance in a short direction. The individual absorbent article according to any one of claims 1 to 6, wherein a release treatment is applied to at least a region corresponding to the shift preventing adhesive layer region on the absorbent article contact surface side of the packaging sheet.

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