JP6121214B2 - Individual absorbent articles - Google Patents

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. 19, a liquid-impermeable back sheet 50 made of a polyethylene sheet or a polyethylene laminated nonwoven fabric, for example. And a liquid-permeable surface sheet 51 made of nonwoven fabric or a permeable plastic sheet, and the like. What formed the shape flaps W and W integrally is known.

  As this type of absorbent article N, in order to prevent misalignment in the mounted state, for example, one or more main body misalignments are formed on the non-skin contact surface side of the main body portion (the outer surface of the liquid-impermeable back sheet 50). There is one in which the stop adhesive layers 53, 53 are formed, and the wing-slap adhesive layers 54, 54 are formed on the surface (outer surface) of the wing-shaped flaps W, W on the liquid-impermeable back sheet 50 side.

  When the absorbent article N is fixed to the underwear, as shown in FIG. 20, the absorbent article N is locally applied, and the wing-shaped flaps W, W protruding laterally are taken out from the underwear, and both wings are The 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 while the crotch portion of the underwear is wound.

  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 film, and as shown in FIG. A method in which the packaging sheet 61 is arranged on the side, the napkin N, the release sheet, and the packaging sheet 61 are folded in three or four in the longitudinal direction, the side edge portion is heat-sealed, and the unsealed portion is fastened by the tag tape 60 Is common.

  In using such individual absorbent articles, the tag tape 60 is removed, the folding in the longitudinal direction is released, the absorbent article N is taken out in an unfolded state, the release sheet is peeled off, and the underwear is attached. When disposing of the used absorbent article, the used absorbent article is rolled up in the longitudinal direction, and then wrapped with the packaging sheet 61 from which the new absorbent article N is taken out, and its end is fastened with a tag tape. In many cases, it is disposed of in a state of being wrapped in tissue or with multiple layers of tissue.

  As such individual absorbent articles, various products have been developed that have improved operability at the time of removal, disposal of used absorbent articles, and the like. For example, in Patent Document 1 below, the packaging bag includes a main opening portion and a sub-opening portion, and is provided with an opening portion that forms a sanitary napkin outlet, and the main opening portion is a part of the packaging bag. It is provided along a side edge in a straight line, longer than one side edge of the folded sanitary napkin and shorter than the one side edge of the packaging bag, and the sub-opening part is the main opening part A sanitary napkin packaging structure is disclosed in which the opening is provided in a straight line perpendicular to the main opening from both ends, and the opening is formed in an I-shape or a U-shape. When using such a sanitary napkin, first, the unsealed portion is opened to form a takeout port, one side edge of the packaging bag is folded, and then the sanitary napkin can be taken out. ing.

  Moreover, in the following patent document 2, the individual bag in the sanitary napkin containing the individual bag is formed by the upper sheet portion and the lower sheet portion, and the upper sheet portion of the individual bag has the longitudinal edge of the stored napkin and There is disclosed one in which two tear opening portions that are easy to tear and are parallel to each other and formed from one side of two parallel sides and extending toward the other side are formed. When using such a sanitary napkin, if the top sheet portion is gripped in the central region and pulled upward, the top sheet tears at the opening site and the individual bag is opened, and then the end of the napkin is separated into a single bag. The napkin can be taken out by pulling it outward.

Japanese Patent Laid-Open No. 7-96001 JP-A-10-127684

  However, when disposing of used absorbent articles, especially in the case of users of light incontinence pads, do not throw them into sanitary boxes equipped with used absorbent articles so that others do not know that they have mild incontinence symptoms. Many people take it home. For this reason, not only the good disposability of used absorbent articles but also good portability has been demanded.

  However, in the sanitary napkin packaging structure described in Patent Document 1, since the packaging bag maintains the bag shape even after the sanitary napkin is taken out, the used napkin is rolled up and stored inside the packaging bag for disposal. Although it is possible, it is inconvenient to carry the used napkin because there is no means for closing the opening.

  Further, in the sanitary napkin with a single bag described in Patent Document 2, when the top sheet is torn at the opening site, the center of the top sheet is torn across both ends, so that the bag shape is sufficient to store the used napkin. Was difficult to maintain, and the disposal of used napkins was poor. Furthermore, even if the used napkin is wrapped in a single bag, since there is no means for closing the opening part after opening, the portability is poor.

  On the other hand, in the individual absorbent article with the opening portion fixed by the tag tape, when the tag tape is removed at the time of opening, the fluffy fibers of the nonwoven fabric adhere to the adhesive layer, or the adhesive layer of the tag tape is a film The tag tape's re-fastening property decreases, and even if you try to fasten the end with a tag tape after wrapping a used absorbent article with a packaging sheet, the tape will easily come off was there.

  Therefore, the main problem of the present invention is to provide an individual absorbent article that is excellent in the disposal property and portability of the used absorbent article by enabling the used absorbent article to be completely wrapped with a packaging sheet. There is.

In order to solve the above-mentioned problem, as the present invention according to claim 1, a main body slip-preventing pressure-sensitive adhesive layer is formed on a surface of the main body portion where an absorbent body is interposed between a liquid-permeable front sheet and a back sheet. An absorbent article comprising: an absorbent article formed; a release material for the main body that covers the main body anti-adhesive pressure-sensitive adhesive layer; and a packaging sheet for individually packaging the absorbent article,
The packaging sheet is individually packaged and folded in the longitudinal direction together with the absorbent article and the release material for the main body while having an overlap margin so that one of the longitudinal end portions is on the upper layer side and the other is on the lower layer side. And both side edge portions of the packaging sheet are firmly fixed,
A widthwise opening line disposed on the upper layer side folding surface, spaced apart from the upper layer side edge, and extending along a direction parallel or substantially parallel to the upper layer side edge, and the width A pair of longitudinal opening lines extending from both ends of the direction opening line to the upper fold base end or the vicinity thereof is formed,
The upper layer-side folded surface has a fixing portion in which the packaging sheet and the main body release material are firmly fixed in a laminated portion of the packaging sheet and the main body release material. An individually absorbent article is provided.

  In the first aspect of the present invention, the packaging sheet is folded in a predetermined trifold, both side edge portions of the packaging sheet are firmly fixed, and the upper layer side folding surface is connected to the upper layer side edge. A widthwise opening line that is disposed inwardly and extends along a direction parallel or substantially parallel to the edge of the upper layer side, and the folding base end of the upper layer side from both ends of the widthwise opening line, or the Since an opening line composed of a pair of longitudinal opening lines extending to the vicinity is formed, in use, the packaging sheet can be opened from the opening line while the packaging sheet maintains the bag shape. It becomes like this.

  In addition, since it is a folded surface on the upper layer side, and has a fixing part in which the packaging sheet and the release material for the main body are firmly fixed in the laminated portion of the packaging sheet and the release material for the main body, By opening the packaging sheet from the unsealing line and opening the packaging sheet, the folded state of the upper layer side portion of the absorbent article fixed to the packaging sheet via the fixing portion is simultaneously developed.

  After that, when the end of the developed absorbent article and the end of the opposite side of the packaging sheet are picked and pulled so as to pull out the absorbent article from the packaging sheet, the release material for the main body is now attached to the fixing part. Therefore, the main body release material remains on the packaging sheet, and the main body release material is peeled from the main body misalignment-preventing adhesive layer of the absorbent article. Therefore, the taken-out absorbent article can be attached to the underwear as it is, and the operation of peeling the release paper and the trouble of discarding the release paper can be saved.

  Thus, the packaging sheet after taking out an absorbent article will be in the state which extended long because the peeling material for main bodies was fixed to the front-end | tip part which the packaging sheet opened. In addition, since the band-shaped portion of the packaging sheet from the widthwise opening line to the end edge that is left in an individually packaged state after being opened from the opening line, both side edges are sealed at the time of individual packaging, the lower layer of the packaging sheet A ring shape is formed between the sides. For this reason, when disposing of the used absorbent article, the used absorbent article is rolled up and stored in the bag portion of the packaging sheet, and then folded based on the opened packaging sheet portion, and extended from the tip. By wrapping the release material through the looped portion of the belt-like portion of the packaging sheet and wrapping the whole, the opening of the packaging sheet can be closed without being fastened with a tag tape or the like. It becomes possible to completely wrap it with a packaging sheet. Therefore, it becomes excellent in the disposal property and carrying property of a used absorbent article.

  The present invention according to claim 2, wherein the widthwise opening line is disposed at a position corresponding to the inner side in the longitudinal direction from the longitudinal edge of the absorbent article on the upper layer side. A sex article is provided.

  In the invention according to the second aspect, the opening line is torn at the time of use by arranging the opening line in the width direction at a position corresponding to the inside in the longitudinal direction from the longitudinal edge of the absorbent article on the upper layer side. When opened, the tip of the absorbent article protrudes outward from the developed packaging sheet, so that it becomes easier to pull out the absorbent article by gripping the tip of the absorbent article and the unsealing property is improved.

  As the present invention according to claim 3, the width direction opening line is any one of a straight line, a curve that bulges toward the edge on the upper layer side, a broken line or a wavy line that bulges toward the edge on the upper layer side. An individually absorbent article according to any one of claims 1 and 2 is provided.

  In the invention of claim 3, the shape of the width direction opening line is specified, and a straight line that is easy to manufacture may be used, or a curve, a broken line, or a wavy line may be used in order to improve opening characteristics, and a combination thereof. It is good.

  As a fourth aspect of the present invention according to claim 4, the width direction opening line is provided with a knob portion projecting toward an edge on the upper layer side in the center portion. An absorbent article is provided.

  In the invention of claim 4, by providing a knob portion protruding toward the edge on the upper layer side at the center portion of the width direction opening line, the packaging sheet can be easily torn from the knob portion, and the opening property is improved. It is improving.

  As this invention which concerns on Claim 5, the said longitudinal direction opening line is arrange | positioned in the position corresponding to the width direction outer side rather than the width direction side edge of the said absorbent article. An absorbent article is provided.

  In the invention of claim 5, when the absorbent article is taken out from the opened packaging sheet by disposing the longitudinal opening line at a position corresponding to the width direction outer side from the width direction side edge of the absorbent article. In addition, both side edges of the absorbent article can be pulled out smoothly without being caught on the packaging sheet.

  As the present invention according to claim 6, the fixing portion is provided at one or a plurality of locations, and has at least a portion disposed so as to overlap with the main body displacement prevention adhesive layer. The individually packaged absorbent article according to any one of -5 is provided.

  In the invention described in claim 6, since the fixing portion is disposed in one or a plurality of locations, and at least a portion of the fixing portion is disposed so as to overlap the main body displacement prevention adhesive layer, packaging When the sheet is torn and opened by the opening line, the absorbent article is easily developed together with the packaging sheet.

  As the present invention according to claim 7, the absorbent article is tri-folded or folded in the longitudinal direction at a position corresponding to the folding position of the packaging sheet, or the absorbent article is lower than the lower edge of the packaging sheet. The absorbent article is arranged extending in the longitudinal direction, and the absorbent article is folded in the longitudinal direction at or near the edge on the lower layer side, and is folded in the longitudinal direction at a position corresponding to the folding position of the packaging sheet. The individual absorbent article according to any one of claims 1 to 6, which is folded, is provided.

  In the invention described in claim 7, the folding method of the absorbent article is defined, and it may be tri-folded at the same folding position as the packaging sheet, or in the case of an absorbent article having a long longitudinal length. May be folded in advance by arranging the absorbent article extending in the longitudinal direction from the edge on the lower layer side of the packaging sheet, and folding the absorbent article in the extending portion in the longitudinal direction.

  As this invention which concerns on Claim 8, the said packaging sheet provides the individual | separation absorbent article in any one of Claims 1-7 by which the fold base end part of the said lower layer side is provided.

  In the invention described in claim 8, it is easy to store the used absorbent article by providing a gusset at the folding base end portion on the lower layer side of the packaging sheet.

  As described above in detail, according to the present invention, the used absorbent article can be completely wrapped with the packaging sheet, so that the used absorbent article is excellent in discardability and portability.

It is an expanded view of the individual packaging light incontinence pad which concerns on this invention. It is the cross-sectional view (II-II line arrow view of FIG. 1). 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 an opening procedure (the 1). It is a longitudinal cross-sectional view (VI-VI arrow directional view) of FIG. It is a top view which shows an opening procedure (the 2). It is a perspective view which shows the disposal procedure (the 1) of a used pad. It is a perspective view which shows the disposal procedure (the 2) of a used pad. (A)-(C) are top views which show the other example of a width direction opening line 12a. (A), (B) is a top view which shows the other example of a fixed part 13. FIG. It is an expanded view of the individual packaging light incontinence pad which concerns on another example of a form. It is a longitudinal cross-sectional view (VI-VI arrow directional view of FIG. 5) of the individual packaging light incontinence pad which concerns on another form example. It is an expanded view of the individual packaging light incontinence pad which concerns on another example of a form. It is an expanded view of the individual packaging light incontinence pad which concerns on another example of a form. It is a top view which shows the individual packaging procedure. It is a top view of the individual packaging light incontinence pad concerning other examples. It is a top view of the individual packaging light incontinence pad concerning other examples. It is an expanded view of the conventional absorbent article N. It is a perspective view which shows the mounting state of the absorbent article N. FIG. It is a perspective view which shows the individual packaging procedure.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[Basic configuration of light incontinence pad 1]
As shown in FIGS. 1 and 2, the light incontinence pad 1 according to the present invention is provided between a liquid-impermeable back sheet 2 and a liquid-permeable surface sheet 3 (hereinafter also simply referred to as a surface sheet). As shown in the figure, the absorbent body 4 or the absorbent body 4 surrounded by the crepe paper 5 is interposed, and the side nonwoven fabrics 7 and 7 are provided on both sides of the surface side.

  The liquid-impervious back sheet 2 is made of a sheet material having at least water-impervious properties such as polyethylene and polypropylene, but in addition to this, a non-woven sheet after securing a substantially liquid-impervious property through a waterproof film. (In this case, a liquid-impervious back sheet is composed of the waterproof film and the nonwoven fabric). In recent years, those having moisture permeability tend to be suitably used from the viewpoint of preventing stuffiness. The water- and moisture-permeable sheet material is a microporous material obtained by melting and kneading an inorganic filler in an olefin-based resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. A sheet is preferably used.

  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 dissolved 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 5 surrounding the absorbent body 4 is provided as in this example, the crepe paper 5 is interposed between the liquid-permeable surface sheet 3 and the absorbent body 4 as a result. The crepe paper 5 which is excellent in diffusing body fluids quickly prevents reversal of menstrual blood and the like.

  The absorbent body 4 may be mixed with synthetic fibers. As the synthetic fiber, for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon, and copolymers thereof can be used. It may be a mixture. In addition, a composite fiber such as a core-sheath fiber, a side-by-side fiber, or a split fiber having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath can also be used. In the case of a hydrophobic fiber, it is desirable to use a synthetic fiber that has been surface-treated with a hydrophilizing agent so as to have an affinity for body fluids.

  Examples of the superabsorbent resin include cross-linked polyacrylate, self-crosslinked polyacrylate, saponified acrylate-vinyl acetate copolymer cross-linked, isobutylene / maleic anhydride copolymer cross-linked, Examples include cross-linked polysulfonates, and partially cross-linked water-swellable polymers such as polyethylene oxide and polyacrylamide. Among these, those based on acrylic acid or acrylate that are excellent in water absorption and water absorption speed are preferred. In the production process of the highly water-absorbent resin having the water absorption performance, the water absorption force and the water absorption speed can be adjusted by adjusting the crosslinking density and the crosslinking density gradient. The content of the highly water-absorbent resin is desirably 10 to 60% of the weight of the absorber. When the content of the superabsorbent resin is less than 10%, sufficient absorbability cannot be provided, and when it exceeds 60%, the entanglement between the pulp fibers disappears, the sheet strength decreases, and tears, cracks, etc. Is likely to occur.

  Side nonwoven fabrics 7 and 7 are provided on both sides of the surface side of the light incontinence pad 1 along the longitudinal direction and over the entire length of the light incontinence pad 1, and the outer portions of the side nonwoven fabrics 7 and 7. The liquid-impermeable back sheet 2 is laterally extended, and the side nonwoven fabric 7 portion and the liquid-impervious back sheet 2 portion that are extended laterally are hot. Side flaps are formed by bonding with a melt adhesive or the like.

  As the side nonwoven fabric 7, 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 the infiltration of urine and cages, or enhancing the feeling of touch, a water-repellent non-woven fabric coated with a silicon-based, paraffin-based, or alkylchromic chloride-based water repellent. If the emphasis is on the absorbability of body fluids, 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, or stannic chloride Hydrophilic treated non-woven fabric that has been treated with a metal salt, made partially porous by dissolving the surface, making the synthetic fiber swelled or made porous by applying metal hydroxide, etc., and applying hydrophilicity by applying capillary action It is desirable to use The side nonwoven fabric 7 can be made of natural fiber, synthetic fiber, regenerated fiber, or the like and formed by an appropriate processing method. Preferably, the side nonwoven fabric 7 is made air-permeable with a reduced basis weight. Nonwoven fabric should be used.

  As shown in FIG. 2, the inner side of the side nonwoven fabric 7 folds the side nonwoven fabric 7 almost double, and inside the double sheet, in the middle in the height direction, as appropriate at both ends or in the longitudinal direction. One or a plurality of, in the illustrated example, two thread-like elastic elastic members 8 and 8 are disposed, and the double sheet portion is raised on the surface side by the contraction force. Is formed.

  As shown in FIG. 1, the non-skin contact surface of the main body portion where the absorbent body 4 is interposed between the liquid-permeable top sheet 3 and the liquid-impervious back sheet 2 (the liquid-impervious back sheet 2 Are formed on the outer surface of the main body by a suitable application pattern for fixing to the underwear, and in the illustrated example, three main body misalignment adhesive layers 9, 9... Are formed. Layers 9, 9... Are releasably covered with a release material 10 for main body.

  As the pressure-sensitive adhesive forming the main body displacement-preventing pressure-sensitive adhesive layer 9, for example, a styrene 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. As the tackifier and plasticizer, those that 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, etc., and examples of the plasticizer include monomer plasticizers such as trifresil phosphate, dibutyl phthalate, dioctyl phthalate, and polymer plasticizers such as vinyl polymers and polyesters. It is done.

  As the release material 10 for the main body, for example, a release treatment liquid such as a silicone resin, a fluorine resin, or an ethylene tetrafluoride resin is applied to the contact surface with the main body anti-adhesive adhesive layers 9, 9. Paper, plastic film, or polylaminated nonwoven fabric that has been processed or spray-coated and released may be used, but a plastic film or polylaminated nonwoven fabric that is highly flexible is preferably used. It should be noted that the film itself or the nonwoven fabric itself may be used as long as it does not cause a substantial decrease in the adhesive force without special release treatment.

  The light incontinence pad 1 is individually packaged, and the main body displacement preventing adhesive layers 9, 9... Are covered with the main body release material 10, and a packaging sheet 11 is further disposed on the outer surface thereof. The main body release material 10 and the packaging sheet 11 are arranged along the longitudinal direction, and are folded and packaged in the longitudinal direction by a predetermined folding procedure.

As shown in FIG. 1, the packaging sheet 11 for individually mounting the light incontinence pad 1 corresponds to a pair of left and right long side edges corresponding to the longitudinal direction of the pad 1, and a short direction (width direction) of the pad 1. The rectangular sheet is defined by a pair of short side edges. As a material, a plastic film, non-woven fabric, paper, or the like can be used, but a plastic film having a certain degree of stiffness is desirable. In terms of dimensions, as shown in FIG. 1, the short dimension is wider than the main body portion of the light incontinence pad 1 and extends to both sides. As for the longitudinal dimension, at least one end side (the side corresponding to the front side of the light incontinence pad 1, the upper layer side when folded in the longitudinal direction in the individual state) extends to the front side from the front end of the light incontinence pad 1. The other end side (the side corresponding to the rear side of the light incontinence pad 1, the lower layer side when folded in the longitudinal direction in the individual packaging state) is the rear side of the rear end of the light incontinence pad 1 according to the individual packaging procedure (Fig. 1 etc.) or shorter than the rear end of the light incontinence pad 1 (Fig. 12 etc.). Details will be described later.
[Individual packaging procedure, opening procedure and disposal procedure]
Next, the individual packaging procedure, opening procedure, and disposal procedure of the light incontinence pad 1 will be described in detail. In order to individually mount the light incontinence pad 1, as shown in FIG. 1, the main body displacement prevention adhesive layers 9, 9... The light incontinence pad 1 is arranged on the packaging sheet 11 so that the surface on the material 10 side is on the lower side. In the example shown in FIG. 1, the packaging sheet 11 is wider than the developed width of the light incontinence pad 1 and longer than the developed length of the light incontinence pad 1.

  The packaging sheet 11 and the release material 10 for the main body are parts near the front side of the light incontinence pad 1 (parts near the edge on the upper layer side of the packaging sheet 11 in the individual packaging state). The fixing part 13 provided in the laminated portion with the release material 10 for use is firmly fixed by an adhesive, heat fusion, or the like.

  Thereafter, as shown in FIG. 3, when the pad rear end side is folded to the light incontinence pad 1 side of the central portion at the fold line S1 position, as shown in FIG. 4, at the fold line S2 position. By folding the pad front end side to the light incontinence pad 1 side of the central portion, the packaging sheet 11 is in an individually packaged state, one of the longitudinal end portions (the pad rear end side) is the upper layer side 11a, and the other Folded in the longitudinal direction along with the light incontinence pad 1 and the main body release material 10 so as to be the lower layer side 11b so that the (pad front end side) is the lower layer side 11b. Further, as shown in FIG. 4, the opened side edge portion of the packaging sheet 11 is formed by side edge seal portions 11 d and 11 d made of a single or a combination of appropriate sealing means such as embossing pressure bonding, heat fusion, and adhesive. It should be firmly fixed and sealed. Note that the edge of the upper layer side 11a of the packaging sheet 11 is not subjected to fastening means such as tag tape or sealing means such as heat sealing, and is simply left in a state of being laminated on the upper surface of the lower layer side 11b.

  The surface of the packaging sheet 11 that is to be the upper layer side 11a is disposed inwardly from the edge of the upper layer side 11a, and is parallel to or substantially parallel to the edge of the upper layer side 11a. An opening line 12 is formed which includes an extending width direction opening line 12a and a pair of longitudinal opening lines 12b and 12b extending from both ends of the width direction opening line 12a to the folding base end of the upper layer side 11a or the vicinity thereof. . The width direction opening line 12a is parallel or substantially parallel to the edge of the upper layer side 11a. As shown in FIG. 1, when the width direction opening line 12a is formed by a straight line extending in the width direction, the width direction When the opening line 12a and the upper layer side 11a are provided in parallel with each other, and as shown in FIG. 10, when formed by a curve or a broken line other than a straight line, the width direction opening line 12a extends as a whole. Is provided so as to be substantially parallel to the edge of the upper layer side 11a, and although not shown, when the edge of the upper layer side 11a of the packaging sheet 11 is formed by a line other than a straight line, the edge of the upper layer side 11a is It means that the direction extending as a whole and the width direction opening line 12a are provided so as to be substantially parallel to each other.

  When the light incontinence pad 1 is used, the packaging sheet 11 is torn and opened along the opening line 12, and the stored light incontinence pad 1 is taken out. Thereby, the part torn along this opening line 12 becomes an outlet, and the packaging sheet 11 can be opened while maintaining the bag shape.

  Further, since the fixing portion 13 for fixing the packaging sheet 11 and the main body release material 10 is provided on the folding surface that becomes the upper layer side 11 a of the packaging sheet 11, the packaging sheet torn along the opening line 12. At the same time that 11 is unfolded, the front side portion of the folded light incontinence pad 1 is unfolded and exposed to the outside (see FIG. 5).

  Thereafter, the end portion (front end portion) of the light incontinence pad 1 that is unfolded and exposed to the outside is picked, and the folded portion of the packaging sheet 11 on the opposite side is picked with the opposite hand to remove the light incontinence pad 1. When pulled so as to be pulled out from the packaging sheet 11, the main body release material 10 is fixed to the packaging sheet 11 side by the fixing portion 13 and remains on the packaging sheet 11 side. Of the main body misalignment-preventing pressure-sensitive adhesive layers 9, 9... Accordingly, the light incontinence pad 1 taken out can be attached to the underwear as it is, so that the trouble of peeling the release paper and the trouble of discarding the peeled release paper can be saved.

  Thus, the packaging sheet 11 after taking out the light incontinence pad 1 is fixed to the front end of the packaging sheet 11 opened by the main body release material 10 and is in a state of extending for a long time, as shown in FIG. ing. Further, the band-like portion 11e of the packaging sheet 11 from the width direction opening line 12a to the edge of the upper layer side 11a, which is a part of the upper layer side 11a left in the individual packaging state after opening from the opening line 12, Since both side edges are sealed at the time of individual packaging and the middle part is not fixed by a tag tape or the like, it forms a ring shape with the lower layer side 11b (see FIG. 7B). Therefore, when disposing of the used light incontinence pad 1 ′, as shown in FIG. 8, the used light incontinence pad 1 ′ is rolled up in the longitudinal direction and stored in the bag portion of the packaging sheet 11, and then opened. While folding based on the sheet portion, the main body release material 10 extending from the tip portion is inserted through the ring-shaped portion of the belt-like portion 11e and wound so as to wrap the whole (see FIG. 9). As a result, even if the opening is not fastened with a tag tape or the like, the opening can be sealed without spreading the packaging sheet 11, and the used light incontinence pad 1 ′ can be completely wrapped with the packaging sheet 11. Become. Therefore, the used light incontinence pad 1 ′ is excellent in discardability and portability.

  For example, the opening line 12 can be easily tearable along the opening line 12 such as a perforation formed by a cutting line intermittently penetrating the packaging sheet 11 or a continuous half-cut line in the thickness direction. It is a line.

  The relative positional relationship between the width direction opening line 12a and the longitudinal edge (front edge) of the light incontinence pad 1 arranged on the folding surface of the upper layer side 11a is arbitrary, but as shown in FIG. The width direction opening line 12a is preferably disposed at a position corresponding to the inner side (rear side) in the longitudinal direction from the front end edge of the light incontinence pad 1. As a result, when the packaging sheet 11 is unfolded by tearing the unsealing line 12 in use, the front end edge of the light incontinence pad 1 protrudes outward from the edge of the unfolded packaging sheet 11. The front edge of the incontinence pad 1 can be easily picked up and pulled out from the packaging sheet 11 to improve the openability. The distance A in the longitudinal direction of the pad between the width direction opening line 12a and the front end of the light incontinence pad 1 is preferably about 10 mm to 30 mm in consideration of easy picking. The width direction opening line 12a can be developed together with the front side portion of the light incontinence pad 1 fixed by the fixing portion 13 when the opening sheet 12 is torn and the packaging sheet 11 is expanded as described in the above-described opening procedure. As described above, it is located on the outer side (front side) in the longitudinal direction from the fixing portion 13, and preferably when the front end portion of the developed light incontinence pad 1 is picked, the body release material 10 is mistakenly picked together. It is preferable to arrange so as to be located on the outer side in the longitudinal direction (front side) from the front edge of the main body release material 10.

  The shape of the width direction opening line 12a may be a straight line shown in FIG. 1, but a curve that bulges toward the edge of the upper layer side 11a shown in FIG. 10 (A), FIG. 10 (B). It is more preferable to form it with a fold line or the like that bulges toward the edge of the upper layer side 11a shown in FIG. 6 because the packaging sheet 11 is easily torn along the opening line 12a. In addition, although not illustrated, it can be formed by a line having an arbitrary shape such as a wavy line or a zigzag line, or can be formed by combining the above-described lines.

  Further, as shown in FIG. 10C, a knob portion 12f protruding toward the edge of the upper layer side 11a can be provided in the center portion of the width direction opening line 12a. In the example of illustration, the rectangular knob | pick part 12f which protrudes toward the outer side is provided in the center part of the width direction opening line 12a formed linearly. As a result, when opening the packaging sheet 11, it is possible to first tear the handle portion 12f with a thumb or the like and then tear it, so that the width direction opening line 12a can be torn to both sides with this as the starting point, making tearing easier. , The openability is improved.

  Next, the longitudinal opening line 12b is preferably linear, such as a straight line, a wavy shape, a zigzag shape, or a wavy shape that continuously extends from both ends of the width direction opening line 12a to the folding base end of the upper layer side 11a or the vicinity thereof. Is formed.

  The longitudinal opening line 12b is disposed at a position on the outer side in the width direction from the side edge in the width direction of the light incontinence pad 1 and on the inner side from the side edge seal portion 11d. By arranging in this position, when the light incontinence pad 1 is pulled out from the opened packaging sheet 11, both side edges of the light incontinence pad 1 can be smoothly pulled out without being caught by the packaging sheet 11. Further, as shown in FIG. 4, a separation distance B in the pad width direction between the longitudinal opening line 12b and the side edge seal portion 11d (a separation distance from the tip of the width direction opening line 12a to the side edge seal portion 11d). Is preferably about 2 mm to 10 mm. If the distance B is less than 2 mm, it is too close to the side edge seal portion 11d to form the opening line 12b, which makes it difficult to manufacture. If the distance B is larger than 10 mm, it is difficult to tear at the opening line 12b due to the elongation of the packaging sheet 11. .

  The side edge seal portion 11d is continuous from each fold line S1 to S2 so as to seal the opening side edge in a state where the lower layer side 11b and the upper layer side 11a of the packaging sheet 11 are folded to the center portion 11c. Is formed. The side edge seal portion 11d is firmly fixed to the extent that the joined state is not released by tearing of the packaging sheet 11 from the opening line 12. As shown in FIG. 4, the seal width C of the side edge seal portion 11d is provided to be 1 mm or more, preferably 5 mm to 10 mm. As a sealing method, a known sealing method such as heat sealing or ultrasonic sealing can be used, and a hot melt adhesive may be applied to increase the bonding strength.

  As shown in FIG. 1, the fixing portion 13 may be provided at one central portion in the width direction of the main body release material 10, or at two or more locations as shown in FIG. 11. May be provided. Desirably, it should be provided at two locations separated in the pad width direction. In any case, it is desirable that at least a part is disposed so as to overlap with the main body displacement prevention adhesive layer 9. By having a portion disposed so as to overlap the main body displacement prevention adhesive layer 9, when the packaging sheet 11 is opened while tearing at the opening line 12, the unfolded packaging sheet 11 and the fixing portion 13 and the main body displacement prevention adhesive are opened. The light incontinence pad 1 fixed via the agent layer 9 is easily developed. In FIG. 11 (A), two fixing portions 13 and 13 are provided on both sides of the front side of the main body release material 10 so as to partially overlap the main body displacement prevention adhesive layer 9. Further, in FIG. 11 (B), the fixing portions 13 and 13 disposed so as to partially overlap the main body misalignment-adhering adhesive layer 9 on both front side portions of the main body release material 10, and the main body release material 10. A total of three fixing portions 13 including a fixing portion 13 arranged in front of the main body misalignment-preventing adhesive layer 9 are provided in the front central portion of the main body. Thus, it is only necessary that at least one fixing portion 13 of the plurality of fixing portions 13 overlaps with the main body displacement preventing adhesive layer 9, and all the fixing portions 13. It does not have to overlap.

  In the example shown in FIG. 1, the light incontinence pad 1 is formed to be shorter in length than the packaging sheet 11, and the packaging sheet 11 is placed on the front side of the light incontinence pad 1 when placed on the packaging sheet 11 in an unfolded state. It is provided to extend outward from the end edge and the rear end edge, and is folded in three so as to be folded in the longitudinal direction at positions corresponding to the folding positions S1 and S2 of the packaging sheet 11.

  On the other hand, when the longitudinal dimension of the light incontinence pad 1 is relatively long, such as for night use, or when it is desired to make the individual packaging state compact, as shown in FIG. 12, the rear portion of the light incontinence pad 1 is a packaging sheet. The pad rear side portion that extends outside the edge of 11 and extends outward from the packaging sheet 11 of the light incontinence pad 1 is folded in the longitudinal direction at or near the edge of the packaging sheet 11. Then, it is also possible to form four folds that are folded in the longitudinal direction at the fold lines S1 and S2 of the packaging sheet 11, respectively.

  As shown in FIG. 13, a gusset 14 can be provided on the folding base end portion of the lower layer side 11 b of the packaging sheet 11. The folded base end portion of the lower layer side 11b is a portion that becomes the bottom on the side opposite to the opening in the bag state of the packaging sheet 11 after the light incontinence pad 1 is taken out, and by providing a gusset 14 in this portion Even if the size of the light incontinence pad 1 or night napkin is large and the used one is bulky in a rolled state, it can be easily stored in the bag of the packaging sheet 11 and can be easily disposed of. Become.

  In order to provide the gusset 14, as shown in FIG. 13, a folded portion that is folded in the longitudinal direction in a bellows shape once or a plurality of times along the folding line S1 on the lower layer side 11b of the packaging sheet 11. The side edge seal portions 11d and 11d are applied.

  Next, the case where other forms of light incontinence pads are individually mounted will be described. FIG. 14 includes wing-shaped flaps W, W that are used so as to be wound around the crotch portion of the underwear when fixed to the undergarment, and the non-use side of the wing-shaped flaps W, W (impermeable liquid back surface) This shows the individual packaging state of the light incontinence pad 1A provided with the adhesive layers 15 and 15 on the surface of the sheet 2 side). When individually mounting the light incontinence pad 1A, the adhesive layers 15 and 15 are covered and the adhesive layers 15 and 15 are covered with the wing-shaped flaps W and W folded on the use surface side (liquid permeable surface sheet 3 side). A wing release paper 16 straddling between the agent layers 15 is arranged. In the case of such a light incontinence pad 1A, it is preferable to fold the light incontinence pad in the same manner as in the case where the light incontinence pad is folded in three. At this time, the wing release paper 16 folds the lower layer side 11b of the packaging sheet 11 at the fold line S1. When folded in the longitudinal direction, it is firmly fixed by the packaging sheet 11 and the fixing portion 17 extending outward from the rear end of the light incontinence pad 1A. As a result, when the light incontinence pad 1A is pulled out from the packaging sheet 11, the wing release paper 16 remains on the packaging sheet 11 side, so that it is possible to save the trouble of peeling and disposal of the release paper 16.

  Here, the fixing portion 17 is arranged on the front side of the pressure-sensitive adhesive layer 15 so that the wing release paper 16 is gradually peeled off from the front side of the pressure-sensitive adhesive layers 15 and 15 when the light incontinence pad 1A is pulled out. It is preferable.

  15 and 16 include the wing-shaped flaps W and W and the pressure-sensitive adhesive layers 15 and 15, and further include second wing-shaped flaps WB and WB on the heel side, and the second wing-shaped flap WB, It shows the individual packaging state of the light incontinence pad 1B provided with the pressure-sensitive adhesive layers 18 and 18 on the surface of the non-use surface (impermeable liquid back sheet 2 side) of WB. When individually mounting the light incontinence pad 1B, the wing-shaped flaps W and W and the second wing-shaped flaps WB and WB are folded to the use surface side (liquid-permeable surface sheet 3 side), and each adhesive While covering the layers 15 and 18, a wing release paper 19 straddling the pressure-sensitive adhesive layers 15 and 18 is disposed. In the case of such a light incontinence pad 1B, it is preferable to fold the light incontinence pad in the same manner as in the case of folding the light incontinence pad into four. At this time, the wing release paper 19 has the rear side portion of the light incontinence pad 1B at a fold line S0. Thus, the main body peeling material 10 and the fixing portion 20 that appear on the surface side when folded in the longitudinal direction are firmly fixed. Thus, when the light incontinence pad 1B is pulled out from the packaging sheet 11, the wing release paper 19 remains on the main body release material 10 side, so that the trouble of peeling and disposal of the release paper 19 can be saved. The adhering portion 20 is preferably arranged in front of the pressure-sensitive adhesive layer 15 as described above.

  By the way, in order to allow the user to positively hold the specific part and perform the opening operation so that the packaging sheet 11 from the opening line 12 is smoothly torn when opening the individual light incontinence pad, as shown in FIG. As shown, a display unit may be provided on the outer surface of the packaging sheet 11 by printing characters such as “having here” and graphics such as arrows.

[Other examples]
After the packaging sheet 11 is folded in three in the longitudinal direction together with the light incontinence pad 1 and the release material 10 for the main body, the side edges of the packaging sheet 11 are firmly fixed. In order to completely prevent oozing out, it is desirable to firmly fix and seal over the entire length. However, as long as the bag shape can be maintained at the minimum, as shown in FIG. It may be provided. In the case of partial fixing, as shown in FIG. 18, in order to maintain the bag shape, the upper and lower fold portions of the packaging sheet 11 are provided with rigid fixing portions 11d ′ and 11d ′ and the band-shaped portion 11e. It is preferable to provide a rigid fixing portion 11d ″ at the end of the upper layer side 11a so that the ring portion can be maintained.

  1 · 1A · 1B ... Light incontinence pad, 2 ... Impervious back sheet, 3 ... Impervious surface sheet (front sheet), 4 ... Absorber, 5 ... Crepe paper, 7 ... Side nonwoven fabric, 9 ... Misalignment of main body Stop adhesive layer, 10 ... release material for main body, 11 ... packaging sheet, 11a ... upper layer side, 11b ... lower layer side, 11c ... central part, 11d ... side edge seal part, 11e ... band-like part, 13 ... fixing part, 14 ... gusset, 15.18 ... adhesive layer, 16.19 ... release paper for wings, 17.20 ... fixing part,

Claims (8)

Absorbent article in which a main body slip-proof adhesive layer is formed on the surface of the main body portion where the absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and the main body slip-proof adhesive layer An individually absorbent article comprising a release material for a main body covering the body and a packaging sheet for individually packaging the absorbent article,
The packaging sheet is individually packaged and folded in the longitudinal direction together with the absorbent article and the release material for the main body while having an overlap margin so that one of the longitudinal end portions is on the upper layer side and the other is on the lower layer side. And both side edge portions of the packaging sheet are firmly fixed,
A widthwise opening line disposed on the upper layer side folding surface, spaced apart from the upper layer side edge, and extending along a direction parallel or substantially parallel to the upper layer side edge, and the width A pair of longitudinal opening lines extending from both ends of the direction opening line to the upper fold base end or the vicinity thereof is formed,
The upper layer-side folded surface has a fixing portion in which the packaging sheet and the main body release material are firmly fixed in a laminated portion of the packaging sheet and the main body release material. Individual absorbent article.   The individually absorbent article according to claim 1, wherein the width direction opening line is disposed at a position corresponding to a longitudinally inner side from a longitudinal edge of the absorbent article on the upper layer side.   The width direction opening line is formed of any one of a straight line, a curved line that bulges toward the edge on the upper layer side, a broken line or a wavy line that bulges toward the edge on the upper layer side, or a combination thereof. The individual absorbent article according to any one of 1 and 2.   The individually absorbent article according to any one of claims 1 to 3, wherein the width direction opening line is provided with a knob portion protruding toward an edge on the upper layer side at a center portion.   The individual absorbent article according to any one of claims 1 to 4, wherein the longitudinal opening line is disposed at a position corresponding to an outer side in the width direction from a side edge in the width direction of the absorbent article.   The individual attachment according to any one of claims 1 to 5, wherein the fixing portion is provided at one or a plurality of locations, and has at least a portion disposed so as to overlap the main body displacement prevention adhesive layer. Absorbent article.   The absorbent article is arranged in three folds that are each folded in the longitudinal direction at a position corresponding to the folding position of the packaging sheet, or the absorbent article extends in the longitudinal direction from the lower edge of the packaging sheet. In addition, the absorbent article is folded in the longitudinal direction at or near the edge on the lower layer side, and is folded in four in the longitudinal direction at a position corresponding to the folding position of the packaging sheet. 6. The individual absorbent article according to any one of 6.   The individual packaging absorbent article according to any one of claims 1 to 7, wherein the wrapping sheet is provided with a gusset at a folding base end portion on the lower layer side.

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