JP5486786B2 - Individual absorbent articles - Google Patents

Description

  The present invention relates to an individual absorbent article in which the absorbent article is individually packaged by a packaging sheet.

  Conventionally, as an absorbent article 50 such as a sanitary napkin, a panty liner, a cage sheet, an incontinence pad, for example, as shown in FIG. 11, a liquid-impermeable back sheet made of a polyethylene sheet or a polyethylene laminated nonwoven fabric or the like. 51 and a crotch of underwear at the time of wearing, respectively, on both sides of the main body part in which an absorbent body 53 made of cotton-like pulp is interposed between a non-woven fabric or a liquid-permeable surface sheet 52 made of a porous plastic sheet or the like The wing-shaped flaps 54 and 54 are formed to be fixed so as to entrain the portion, and the hip-hold flaps are fixed to the inner side of the buttock of the underwear when worn on both sides of the main body portion on the rear side. One in which 55 and 55 are formed is known.

  In this type of absorbent article 50, in order to prevent misalignment in the mounted state, for example, one or a plurality of adhesive layers 56 are formed on the non-skin contact surface side (outer surface of the back sheet 51) of the main body portion. In addition, pressure-sensitive adhesive layers 57, 57 and 58, 58 are provided on the surface (outer surface) of the wing-shaped flaps 54, 54 and the hip-hold flaps 55, 55 on the back sheet 51 side, respectively.

  When the absorbent article 50 is fixed to the undergarment 30, as shown in FIG. 12, the absorbent article 50 is locally applied, and the wing-shaped flaps 54, 54 protruding laterally are taken out from the underwear, The wing-shaped flaps 54, 54 are folded at folding lines RL, RL, and the adhesive layers 57, 57 are attached to the outer surface of the crotch portion of the underwear 30 while the crotch portion of the underwear is wound, and at the same time for the hip hold The flaps 55, 55 are expanded at the buttock portion, and the hips-stopping adhesive layers 58, 58 are adhered to the inner surface of the heel portion of the underwear 30.

  On the other hand, when the absorbent article 50 is individually packaged, the pressure-sensitive adhesive layers 56, 57, 58, ... are covered with release paper made of paper or film, and a packaging sheet is provided on the outer surface side of the absorbent article 50. The napkin 50, the release paper, and the packaging sheet are all folded into a plurality of folds of three to five in the longitudinal direction, the side edge portions are heat-sealed, and the opening portion is fastened with a tag tape or the like.

  Various types of packaging structures for absorbent articles have been proposed. For example, in the following Patent Document 1, as shown in FIG. 13, the first and second flap adhesive portions 61 and 62 are detachably adhered to an adhesive portion protective sheet 63, and the adhesive portion protective sheet 63 is a packaging sheet. 64 has an extending portion 66 on the front end edge 65 side than the first flap adhesive portion 61 on the front end edge 65 side, and the extending portion 66 fixes the adhesive portion protective sheet 63 to the outer surface of the packaging sheet 64. An absorbent article packaging structure 60 is disclosed.

  Further, in Patent Document 2 below, as shown in FIG. 14, an adhesive cover 73 covering the first flap adhesive 72 is joined to the main wrapper sheet 70 to cover the second flap adhesive 74. Adhesive cover 75 is applied to the adhesive cover 73 at least in one longitudinal region 77 of the sanitary napkin 71 between the second flap adhesive 74 and the first transverse axis 76. A joined and packaged sanitary napkin 71 is disclosed.

Further, in Patent Document 3 below, as shown in FIG. 15, one sheet of release paper in which one surface is a coated surface for the first adhesive region 81 and the other surface is a coated surface for the second adhesive region 82. 83 is used, and a packaged sanitary napkin 80 is disclosed in which the release paper 83 is fixed to the inner surface of the sheet material 85 by a hot melt adhesive 86 at a portion where the release paper 83 extends rearward from the rear end portion of the napkin 84. Yes.
Japanese Patent No. 3865935 Japanese Patent No. 3385035 Japanese Patent No. 3400659

  However, in the case of the above-mentioned Patent Documents 1 to 3, since the adhesive part protective sheet and the release paper extend from the end of the packaging sheet after opening, it extends when trying to wrap a used napkin. The workability of the post-processing was poor because the adhesive part protective sheet and release paper were in the way. In opening, it is necessary to peel the absorbent article from the packaging sheet and then pull it in the longitudinal direction to peel off the adhesive part protective sheet and release paper, so that the opening direction must be pulled longer than the length of the packaging sheet. Also, the opening workability was poor.

  Moreover, in the case of the said patent documents 2, 3, since it is set as the structure provided with the fixing | fixed part of release paper in the inner surface part of the packaging sheet beyond the front-and-back end part of an absorbent article, the longitudinal direction dimension of a packaging sheet becomes long. There were also problems such as increased material costs.

  Accordingly, the main problem of the present invention is to eliminate the peeling paper extending from the opened and unwrapped packaging sheet, improve the post-processing workability of the used napkin, improve the opening workability, and length of the packaging sheet. An object of the present invention is to provide an individually-absorbent absorbent article having an advantage that the material cost can be reduced by enabling the reduction of the length.

In order to solve the above-mentioned problem, as the present invention according to claim 1, the crotch portion of the underwear is wound around both sides of the main body portion in which the absorbent body is interposed between the liquid-permeable top sheet and the back sheet. An absorbent article in which a wing-shaped flap to be fixed is formed, and a wings-stopping adhesive layer is formed on a surface of the wing-shaped flap on the back sheet side, and a packaging for individually packaging the absorbent article An individual absorbent article comprising a sheet,
Each of the wing-shaped flaps is folded back to the surface of the liquid-permeable surface sheet, and a pair of the wings-stopping adhesive layer is releasably covered with a wings-stopping adhesive layer release paper. Both end portions of the release paper for the pressure-sensitive adhesive layer are extended laterally from the side edges of the absorbent article, and the extended portions are adhered to the inner surface of the packaging sheet so as not to be peeled off. An individual absorbent article is provided in which a perforation that can be torn in a direction along the longitudinal direction is formed in the widthwise center of the absorbent article with respect to the release paper for the agent layer.

  In the first aspect of the present invention, the both side ends of the release paper (conceptually including a film) covering the adhesive layer of the so-called folded wing-shaped flap are extended from the side edge of the absorbent article to the side. It extends, this extension part is adhere | attached on the inner surface of a packaging sheet, and the said perforation is formed in the said release paper. When opening, after setting the unfolded state, the front end or rear end of the absorbent article is picked and forcibly peeled off from the packaging sheet, the wing-shaped flap is automatically deployed while the tear line is torn. The

  Therefore, there is no release paper extending from the packaging sheet after opening, and the post-treatment workability of the used napkin becomes good, and the workability at the time of opening becomes good. Further, since the adhesive portion of the release paper is used as the inner surface of the packaging sheet beyond the side edge of the absorbent article, the length of the packaging sheet can be shortened, and the material cost can be reduced.

As the present invention according to claim 2, the absorbent article is formed with hip-hold flaps that are fixed to the inner surface side of the heel portion of the underwear on both sides of the main body portion behind the wing-shaped flap. In addition, a hip-slipping adhesive layer is formed on the back sheet side surface of the hip hold flap,
The hip-hold flaps are respectively folded back to the surface of the liquid-permeable surface sheet, and the pair of hip-slipping adhesive layers are releasably covered with a release paper for hips-slipping adhesive layers. Both end portions of the release paper for layer are extended laterally from the side edges of the absorbent article, and the extended portions are adhered to the inner surface of the packaging sheet so as not to be peeled off. The individual absorbent article according to claim 1, wherein a perforation that is tearable in a direction along a longitudinal direction of the absorbent article in the center in the width direction with respect to the release paper is provided.

  The invention according to claim 2 shows an aspect of an absorbent article having a so-called hip hold flap. In this case, with respect to the hip hold flap, the pressure-sensitive adhesive layer is coated with release paper in the same manner as the wing-shaped flap.

  As the present invention according to claim 3, the release paper for the wings-stopping adhesive layer or the release paper for the hips-stopping adhesive layer is such that the contact surface with the slip-stopping adhesive layer is subjected to a release treatment. The individually absorbent article according to any one of claims 1 and 2, wherein in the extending portion, both end regions including the adhesive portion with the packaging sheet are not subjected to release treatment.

  As the present invention according to claim 4, the release paper for the wings-stopping adhesive layer or the release paper for the hips-stopping adhesive layer is subjected to a release treatment on the entire contact surface side of the slip-stopping adhesive layer, and both end portions The individual absorbent article according to any one of claims 1 and 2, wherein the outer surface of the folded surface is adhered to the packaging sheet.

  As the present invention according to claim 5, the perforation is formed only in the middle part of the release paper, and the cut line is a cut line previously cut from both ends of the perforation to the side edge of the release paper. An individually absorbent article according to the above 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 fourth aspects, wherein the perforation is a perforation that is relatively easy to tear the front portion of the absorbent article.

  The present invention according to claim 7 provides the individually absorbent article according to any one of claims 1 to 4, wherein the perforation is a V-shaped perforation.

  The present invention according to claim 8, wherein the release paper has a V shape or a curved shape in which the planar shape is convex on the rear side of the absorbent article. An absorbent article is provided.

  The inventions according to claims 5 to 8 show an aspect in which the ease of tearing perforations is improved.

  As described in detail above, according to the present invention, the post-treatment workability of the used napkin is improved and the opening workability is also improved. In addition, the cost of the material can be reduced by making the length of the packaging sheet shorter.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[Structural example of sanitary napkin 1]
FIG. 1 is a partially broken development view showing a developed state of the sanitary napkin 1.

The sanitary napkin 1 includes a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, and the like, a liquid-permeable top sheet 3 that allows permeation of menstrual blood, cages, and the like, and both the sheets 2, 3 on both side edges in the longitudinal direction of the main body portion constituted by the absorbent body 4 made of cotton-like pulp or synthetic pulp interposed between the backside sheet 2 and the topsheet 3. Wing-like flaps W, W that protrude and are fixed so as to wind the crotch part of the underwear when worn are formed, and the back sheet is similarly formed on both side edges in the longitudinal direction of the main body part behind this It protrudes laterally by bonding portion between the 2 and the topsheet 3, the hip hold flaps W _B which is fixed to the buttocks inner surface of the undergarment when _worn, is W _B formed It has been. Note that the surface sides may be formed on the side non-woven fabric, respectively along a longitudinal direction, the wing-shaped flaps W in this case, W and hip hold flaps W _B, W _B is the back sheet 2 It comes to be formed by the bonding part with a side nonwoven fabric. A three-dimensional gather can also be formed by the side nonwoven fabric. The absorbent body 4 can be surrounded by crepe paper for shape retention and diffusibility improvement.

The wing-shaped flaps W, the backsheet 2 side surface of the W (back surface), together with the wing-fixing adhesive layer 8, 8 are formed, hip hold flaps W _B, the backsheet 2 side of the W _B On the surface (back surface), hip-slipping adhesive layers 8B and 8B are formed. In addition, the back surface of the main body portion in which the absorbent body 4 is interposed between the top sheet 3 and the back sheet 2 is provided with a plurality of strips according to an appropriate application pattern for fixing to the underwear, and in the illustrated example, three strip bodies. Displacement prevention adhesive layers 7, 7,... Are formed.

Hereinafter, the structure of the sanitary napkin 1 will be further described in detail.
The back sheet 2 is made of a sheet material having at least a water shielding property such as an olefin resin sheet such as polyethylene or polypropylene. In addition to this, a laminated nonwoven fabric in which a nonwoven fabric is laminated on a polyethylene sheet or the like, and further a waterproof film is interposed. Thus, after substantially ensuring liquid impermeability, a non-woven sheet (in this case, a waterproof film and a non-woven fabric constitute a liquid impermeable back sheet) can be used. 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, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used as the top sheet 3. 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 absorber 4 interposed between the said back surface sheet 2 and the surface sheet 3 is comprised by the fluffy pulp and the water absorbing polymer, for example. 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 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.

  Further, synthetic fibers may be mixed in the absorbent body 4. 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.

  As the pressure-sensitive adhesive that forms the anti-displacement pressure-sensitive adhesive layers 7, 8, and 8B, for example, a styrenic polymer, a tackifier, or a plasticizer mainly used 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.

[Individual structure of sanitary napkin 1]
<First form example of individual packaging structure>
2 is a developed plan view of the packaged sanitary napkin 1, and FIG. 3 is a view taken along the line III-III in FIG.

  The individually packaged sanitary napkin 1 is composed of the sanitary napkin 1 and a packaging sheet 10 for individually packaging the sanitary napkin 1.

The package sheet 10 which individually packaged the sanitary napkin 1, as shown in FIG. 2, the wing-shaped flaps W on both sides, in a state of folding back the hip hold flaps W _B to the plane of the topsheet 3 side napkin 1 The width dimension of the sanitary napkin 1 is slightly larger than the front edge of the sanitary napkin 1, and the dimension of the sanitary napkin 1 is slightly greater than the rear edge. It is a rectangular sheet. Note that the rear side of the sanitary napkin 1 may be formed shorter than the rear edge of the sanitary napkin 1, but the sanitary napkin 1 needs to be long enough to be covered by the packaging sheet 10 when folded. It is.

  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. 1, the release paper 5 subjected to the release treatment covers the formation range of the anti-slipping adhesive layers 7, 7, on the contact surface on the napkin 1 side of the packaging sheet 10. It has a size and is adhered so as not to be peeled off by an adhesive such as hot melt (not shown in FIG. 2). The adhesive region between the release paper 5 and the packaging sheet 10 may be the entire surface or may be partial. What is necessary is just to peel with the packaging sheet 10 when peeling the packaging sheet 10 from the sanitary napkin 1. FIG.

  The release treatment of the release paper 5 is performed only on the contact surface of the napkin 1, and the surface bonded to the packaging sheet 10 opposite to the contact surface of the napkin 1 ensures adhesion to the packaging sheet 10. Therefore, the mold release process is not performed.

  Further, a tag tape 20 is provided in the approximate center of the short side edge of the packaging sheet 10. The tag tape 20 is a member made of paper, plastic film, or the like, the base end side is non-removably bonded to the packaging sheet 10, the peelable portion is provided with a peelable adhesive layer, and the tip portion is non-adhesive The knob part is formed.

[Individual packaging procedure]
A procedure for individually mounting the sanitary napkin 1 will be described.

  First, the non-release processing surface side (outer surface side) of the release paper 5 is bonded to the packaging sheet 10 so as not to be peeled off, and the adhesive layer for preventing the slippage from being applied to the release processing surface (inner surface side) of the release paper 5. The sanitary napkin 1 is arranged on the upper surface of the packaging sheet 10 so that 7.

Next, as shown in FIG. 2, the wing-shaped flaps W on both sides, W and hip hold flaps W _B, respectively a W _B s, the outer proximal end of the side edges of the absorbent core 4, the topsheet 3 Wrap it to the side surface. As a result, the pair of wing anti-slip adhesive layers 8 and 8 and the pair of hip anti-slip adhesive layers 8B and 8B are respectively disposed substantially adjacent to the surface.

When the folding of the flaps on both sides is completed, the pair of wings-stopping adhesive layers 8 and 8 are releasably covered with a single wings-stopping adhesive layer release paper 11, and the wings-stopping adhesive is covered. Both end portions of the release paper 11 for the agent layer extend laterally beyond the side edges of the sanitary napkin 1, and the extended portions cannot be peeled by the adhesive 12 on the inner surface of the packaging sheet 10. Glue. Further, a tear line 14 that can be torn in the direction along the longitudinal direction of the napkin 1 is preferably formed at the center in the width direction of the napkin 1 with respect to the release paper 11 for the wings-stopping adhesive layer.

  As the tear line 14, a perforation is usually adopted, but it is sufficient that the tear line 14 can be easily torn when the napkin 1 is peeled off from the packaging sheet 10. As an example, a method of making a cut line in the thickness direction with respect to the release paper 11 can be exemplified.

  The release paper 11 for the wings-stopping pressure-sensitive adhesive layer has a contact surface with the pressure-sensitive adhesive layers 8 and 8, but a region 13 containing the adhesive 12 (rectangular region partitioned by a one-dot chain line). In order to ensure adhesiveness, it is desirable not to perform mold release treatment. In the case where the entire contact surface side of the pressure-sensitive adhesive layers 8 and 8 of the release paper 11 is subjected to a release treatment, an adhesive that can be bonded even on a release treatment surface such as a silicon-based adhesive is used.

  As the release paper 11 for the wings-stopping adhesive layer, a material such as a plastic film can be used in addition to paper.

On the other hand, hip hold flaps W _B, the even W _B, to cover peelable by said pair of Hippuzure fixing adhesive layer 8B, the one sheet 8B Hippuzure fixing adhesive layer for release paper 15, this Hippuzure fixing adhesive Both end portions of the release paper for layer 15 extend laterally beyond the side edges of the sanitary napkin 1, and the extended portions are bonded to the inner surface of the packaging sheet 10 by the adhesive 16 so as not to be peeled off. To do. Further, a tear line 18 that can be torn in the direction along the longitudinal direction of the napkin 1 is preferably formed at the center in the width direction of the napkin 1 with respect to the release sheet 15 for the anti-hipslipping adhesive layer. As the tear line 18, a perforation is usually employed, but it is sufficient that the tear line 18 can be easily torn when the napkin 1 is peeled off from the packaging sheet 10. The release sheet 15 for the anti-hipslipping adhesive layer has a contact surface with the adhesive layers 8B and 8B that has been subjected to a mold release process, but the region 17 that includes the adhesive 16 (rectangular region partitioned by an alternate long and short dash line) In order to ensure adhesion, it is desirable not to perform a mold release process.

As the release paper 11 for the wings-stopping adhesive layer and the release paper 15 for the hips-stopping adhesive layer, for example, a silicone-based resin, a fluorine-based resin, or four on the contact surface with respect to the slip-stopping adhesive layers 8 and 8B. A paper or plastic sheet that has been subjected to a release treatment such as a release treatment solution such as a fluoroethylene resin or spray applied can be 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 wings prevention adhesive layer release paper 11 and the hips prevention adhesive layer release paper 15 are not disposed across the fold line (L _{1 to} L _{2 in} FIG. ₂ ). That is, in the example shown in FIG. 2, the release paper 11 for the wings prevention adhesive layer is disposed between the fold lines L ₂ and L ₃ , and the release paper 15 for the hips prevention adhesive layer is more than the fold line L _1. It is arranged on the rear side.

  The size of the release papers 11 and 15 may be any size as long as it covers at least the pair of wings prevention adhesive layers 8 and 8 or the pair of hips prevention adhesive layers 8B and 8B, as shown in FIG. Then, the dimension in the longitudinal direction of the napkin 1 is slightly longer in the front and rear directions than each pressure-sensitive adhesive layer.

Procedure of packaging the sanitary napkin 1, as shown in FIG. 4 (A), folded napkin 1 with the package sheet 10 at the folding line L ₁ of the napkin rear, then as that shown in FIG. 4 (B) , the folded napkin 1 with the package sheet 10 at the folding line L ₂ of the napkin front, holds the releasably adhered to folded shape tag tape 20 is provided on the outer surface of the package sheet 10 in the short side edge, As shown in FIG. 5, the opened side edge portions 10a and 10a of the packaging sheet 10 are sealed by a single or a combination of appropriate sealing means such as embossed pressure bonding, heat fusion, and adhesive, and are individually packaged. The packaging sanitary napkin N is completed.

At the time of opening, the tab portion of the tag tape 20 is picked and the folded state is sequentially developed to the state shown in FIG. 2, and then the front end portion or the rear end portion of the sanitary napkin 1 is picked and forcibly pulled from the packaging sheet 10. Peel off. At this time, the with perforation of release paper 11, 15 (tear lines 14, 18) are torn, wings W, is _{W B} is automatically deployed.

  By the way, it is desirable that the tear lines 14 and 18 of the release papers 11 and 15 are devised in the perforation so as to be easily torn. FIG. 6 shows these examples. For example, in the example of FIG. 6A, the perforation 14 (18) is formed only in the middle part (A section) of the release paper 11 (15), and the release paper 11 is formed from both ends of the perforation 14 (18). The side edge of (15) (B section) is an example in which cut lines 19 and 19 are cut in advance, and the example of FIG. 6 (B) is a sewing machine in which the front side portion of the napkin 1 is relatively easy to tear. This is an example in which the perforation 14A (18A) is formed with a long perforation or a short joint, and the rear portion is a relatively high perforation 14B (18B). The example of FIG. 6C is an example in which a V-shaped perforation 14C (18C) is used. In addition, the example of FIG. 6D is an example in which the planar shape of the release paper 11 (15) is a V shape that protrudes toward the rear side of the sanitary napkin 1. The example of FIG. 6D may have a curved shape that protrudes toward the rear side of the sanitary napkin 1.

  Moreover, in the said embodiment, in order to adhere the said release papers 11 and 15 to the packaging sheet 10 with the hot-melt-type adhesive agent 12, the area | regions 13 and 17 containing the adhesive agents 12 and 16 (rectangular area partitioned off with the dashed-dotted line ) Is not subjected to the release treatment, but as shown in FIG. 7A, after the entire contact surface side of the adhesive layers 8 and 8B of the release paper 11 and 15 is peeled off. Both ends (region 21 partitioned by a two-dot chain line) may be folded back to the opposite side, and the adhesive 12 may be applied to the outer surface of the folded surface.

<Second form example of individual packaging structure>
Next, the individual packaging structure according to the second embodiment will be described in detail with reference to FIG.

In the second embodiment, the wing-shaped flaps W on both sides, W and hip hold flaps W _B, respectively a W _B s, the outer proximal end of both side edges of the absorbent body 4, on the surface of the topsheet 3 side The pair of wing anti-slip adhesive layers 8 and 8 and the pair of anti-hip anti-slip adhesive layers 8B and 8B are respectively disposed substantially adjacent to the surface. When the folding of the flaps on both sides is completed, the pair of wings-stopping adhesive layers 8 and 8 are releasably covered with a single wings-stopping adhesive layer release paper 11, and the wings-stopping adhesive is covered. One side end of the release paper 11 for the agent layer extends to the side beyond the side edge of the sanitary napkin 1, and this extended portion is adhered to the inner surface of the packaging sheet 10 by the adhesive 12 so as not to be peeled off. It is. The other side end of the release paper 11 for the wings-stopping adhesive layer only covers the adhesive layer 8.

Further, while the hip hold flaps W _B, the even W _B, to cover peelable by said pair of Hippuzure fixing adhesive layer 8B, the one sheet 8B Hippuzure fixing adhesive layer for release paper 15, this Hippuzure stop One end of the adhesive layer release paper 15 extends laterally beyond the side edge of the sanitary napkin 1, and this extended portion is adhered to the inner surface of the packaging sheet 10 by the adhesive 16 so as not to be peeled off. It is a thing.

  In the second embodiment, since the release papers 11 and 15 are adhered to the packaging sheet 10 only on one side, it is not necessary to form a tear line.

[Other examples]
(1) In the above embodiment, the wing-like flaps W, and release paper 11 covering the W, as hip hold flaps W _B, but were separated and release paper 15 covering the W _B, shown in Figure 9, It is also possible to cover the adhesive layers 8 and 8B with a single release paper 21.

The release paper 21 is bonded to the packaging sheet and the adhesives 22, 22..., And a tear line 24 that can be torn in the direction along the longitudinal direction of the napkin 1 is preferably formed at the center in the width direction of the napkin 1. ing. Moreover, it is desirable not to perform the mold release process for the area 23 including the adhesive 22 (rectangular area partitioned by a one-dot chain line) to ensure adhesion. Although FIG. 9 shows the case corresponding to the first embodiment, the same applies to the case corresponding to the second embodiment.
(2) In the above embodiment, as the wing-like flaps W, and W, hip hold flaps W _B, there is shown an example of a night napkin 1 and a W _B, shown in FIG. 10, the wing-shaped flaps The present invention can be applied to the sanitary napkin 1 ′ in which only W and W are formed.

It is a partially broken expanded view which shows the expansion | deployment state of the sanitary napkin 1. FIG. It is the top view which developed the packaged sanitary napkin 1. FIG. It is the III-III arrow directional view of FIG. FIG. 4 is a procedure for individually packaging the sanitary napkin 1. It is a perspective view which shows an individual packaging state. It is a top view which shows the example (A)-(D) of the release papers 11 and 15 which improved tearing ease. It is a figure (A) and (B) which show other examples of the adhesion method of release paper 11 and 15 to packing sheet 10. It is a packaging expansion | deployment figure of the sanitary napkin 1 which concerns on a 2nd form example. It is the napkin packaging development view which showed the modification of the release paper arrangement | positioning aspect. It is the packaging expansion | deployment figure which showed the example of application to the napkin which has only the wing-shaped flap W. It is an expanded view which shows the conventional sanitary napkin 50. It is a mounting state diagram of the napkin 50. It is a top view which shows the packaging structure 60 of the absorbent article of patent document 1. FIG. It is a top view which shows the sanitary napkin 71 of the patent document 2 packaged. It is a top view which shows the sanitary napkin 80 with an individual package of patent document 3. FIG.

DESCRIPTION OF SYMBOLS 1 ... Sanitary napkin, 2 ... Back sheet, 3 ... Top sheet, 4 ... Absorber, 5 ... Release paper, 7 ... Main body slip prevention adhesive layer, 8 ... Wings slip prevention adhesive layer, 8B ... Hips slip prevention adhesive Layer 10, packaging sheet 11, release paper for adhesive layer for wings, 15, release paper for adhesive layer for hips 12, 12, 16, adhesive, 14 18, tear line, 20, tag tape, L ₁ · L 2 _... fold lines, N ... Individual packaging sanitary napkins, W ... wing-like flaps, W B _... Hip-hold flap

Claims (8)

Wing-like flaps are formed on both sides of the main body portion where the absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and the wing-shaped flaps are fixed so as to wind the crotch portion of the underwear when worn. An absorbent article comprising an absorbent article in which a wings-stop adhesive layer is formed on the surface of the back-side sheet of the shaped flap, and a packaging sheet for individually packaging the absorbent article,
Each of the wing-shaped flaps is folded back to the surface of the liquid-permeable surface sheet, and a pair of the wings-stopping adhesive layer is releasably covered with a wings-stopping adhesive layer release paper. Both end portions of the release paper for the pressure-sensitive adhesive layer are extended laterally from the side edges of the absorbent article, and the extended portions are adhered to the inner surface of the packaging sheet so as not to be peeled off. individually packaged absorbent article, characterized in that a widthwise center of the absorbent article to form a perforation tearable in a direction along the longitudinal direction with respect to the adhesive layer for release paper. In the absorbent article, hip holding flaps are formed on both sides of the main body portion on the rear side of the wing-shaped flap, and are fixed to the inner side of the heel portion of the underwear. A hips-stop adhesive layer is formed on the surface of the back sheet side,
The hip-hold flaps are respectively folded back to the surface of the liquid-permeable surface sheet, and the pair of hip-slipping adhesive layers are releasably covered with a release paper for hips-slipping adhesive layers. Both end portions of the release paper for layer are extended laterally from the side edges of the absorbent article, and the extended portions are adhered to the inner surface of the packaging sheet so as not to be peeled off. absorbent individually packaged absorbent article of claim 1, wherein a widthwise central forming perforations tearable in a direction along the longitudinal direction of the article relative to the release paper.   The release paper for the wings-stopping adhesive layer or the release paper for the hips-stopping adhesive layer is subjected to a release treatment on the contact surface with the slip-off-adhesive layer. The individually absorbent article according to any one of claims 1 and 2, wherein the both end regions including the bonded portion are not subjected to a release treatment.   The release paper for the wings-stopping adhesive layer or the release paper for the hips-stopping adhesive layer, after the entire contact surface side of the slip-off-adhesive layer is peeled off, both ends are folded back to the opposite side. The individually absorbent article according to any one of claims 1 and 2, wherein an outer surface of the adhesive is adhered to a packaging sheet.   The individual perforation absorption according to any one of claims 1 to 4, wherein the perforation is formed only in an intermediate portion of the release paper, and a cut line is formed in advance from both ends of the perforation to a side edge of the release paper. Sex goods.   5. The individual absorbent article according to any one of 1 to 4, wherein the perforation is a perforation that is relatively easy to tear the front portion of the absorbent article.   5. The individual absorbent article according to any one of 1 to 4, wherein the perforation is a V-shaped perforation.   The individual absorbent article according to any one of claims 1 to 7, wherein the release paper has a V shape or a curved shape in which a planar shape is convex on the rear side of the absorbent article.

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