JP2014068865A - Individually packaged body for absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an individually packaged body for an absorbent article, capable of hygienically raising a wing and removing a release sheet attached to the wing, when taking out the absorbent article by opening a packaging material and removing the release sheet.SOLUTION: In an individually packaged body 20 for an absorbent article, the absorbent article is folded in a manner such that: each wing 5 is folded toward a skin abutting surface side of a main body 5; a portion positioned further backward than the wings 5 in the longitudinal direction is folded so as to overlap a portion having the wings 5; and a portion positioned further forward than the wings 5 is folded so as to overlap the portion with the wings. Then, in the folded state, a release sheet 7 is arranged further backward than a folding position in front of the wings 5, between each surface on a non-skin abutting surface side of the wing 5 and a packaging material 30. The release sheet 7 is removably adhered on an adhesion part 6 of each wing 5, and both sides in the width direction between the packaging material 30 and the release sheet 7 are set as non-adhesive regions, and a center region in the width direction is fixed by a fixing part 31.

Description

  The present invention relates to an individual package of absorbent articles.

  Conventionally, absorbent articles such as sanitary napkins and panty liners (orimono sheets) are folded together with packaging materials, individually packaged, and marketed. In this packaged state, the adhesive part for fixing such an absorbent article to underwear such as shorts is covered and protected by release paper or the like. When using absorbent articles that are individually packaged in this way, the absorbent article is peeled off from the packaging material, and the release paper is peeled off to expose the adhesive portion.

  For example, Patent Literature 1 discloses an absorbent article having a vertically long main body and a pair of wing portions extending on the left and right sides of the main body. This individual package of absorbent articles is obtained by folding the absorbent article together with the packaging material in the longitudinal direction and sealing a predetermined portion of the packaging material. That is, in the absorbent article, each wing part is folded on the skin contact surface side of the main body, and the part located behind the wing part is overlapped on the part having the wing part in the longitudinal direction of the absorbent article. Furthermore, it is folded in the longitudinal direction so as to overlap a portion located in front of the wing portion. And the surface of each wing part on the non-skin-contacting surface side and the part located behind the wing part are adhered to the release sheet disposed therebetween so as to be peelable through the respective adhesive parts. . Furthermore, this individual package is configured such that a part of the release sheet can be picked in a state where a predetermined portion of the packaging material is opened and only a portion located in front of the wing portion is developed.

JP 2006-180990 A

In the individual packaging body of the absorbent article described above, when the packaging material is opened, it is in a state of being completely folded on the surface side of the product due to the influence of creases on the wing base. That is, it is folded in such a way that the wing is in contact with the product surface. Therefore, when trying to expand the wing, the finger may come into contact with the skin contact surface side of the absorbent article, which may be unsanitary. Further, even if the wing is deployed, the state immediately before deployment is restored due to the folding folds, and it may be troublesome to attach the wing. For this reason, it has been desired to keep the winged state for a certain period of time.
In addition, since the release sheet and the packaging material are joined to each other in the width direction of the absorbent article, when the release sheet is peeled off together with the packaging material, the release sheet and the packaging material are not lifted up along the width direction of the release sheet. Then, the release sheet is peeled off by sequentially lifting in the longitudinal direction. For this reason, when peeling a peeling sheet, a peeling sheet peels in the state which a wing does not lift. Therefore, even if the release sheet is peeled off, the wing remains in a folded state. Therefore, when trying to raise the wing, the fingertip that tries to pick up the wing touches the absorbent article on the skin contact surface side. May become unsanitary.

  The present invention provides an individual packaging body of an absorbent article that can be opened hygienically and peeled off from the release sheet when the packaging material is opened and the release sheet attached to the wing is peeled off to take out the absorbent article. About doing.

The present invention relates to an absorbent article having a vertically long main body and a pair of wings extending on both sides in the width direction of the main body, together with the packaging material disposed on the non-skin contact surface thereof, An individual packaging body of an absorbent article that is folded in a direction and sealed with the packaging material,
In the absorbent article, each wing is folded from the boundary base end position of the main body and the wing to the skin contact surface side of the main body, and on the portion having the wing in the longitudinal direction of the absorbent article. Folded so that the part located behind the wing overlaps, and further folded in the longitudinal direction so that the part located forward from the wing overlaps,
Between the surface on the non-skin contact surface side of each wing and the packaging material, a release sheet is arranged at a rear position from a folding position at a front position from the wing,
The release sheet is releasably adhered to the adhesive portion disposed on the non-skin contact surface side of the wing, and between the packaging material and the release sheet, both sides in the width direction are non-adhesive regions, and the center in the width direction. Provided is an individual package of absorbent articles fixed by a fixing portion in a region.

  Further, the present invention folds an absorbent article having a vertically long main body and a pair of wings extending on both sides in the width direction of the main body in the longitudinal direction of the main body together with the packaging material. An individual package of absorbent articles formed by sealing, wherein each of the wings is folded from the boundary base end position of the main body and the wing to the skin contact surface side of the main body, and The absorbent article is folded in such a manner that a portion located behind the wing overlaps with a portion having the wing in the longitudinal direction, and further a portion located forward of the wing overlaps with the longitudinal direction. A release sheet is arranged between the surface of each wing on the non-skin contact surface side and the packaging material at a position rearward of the folding position in front of each wing. The sheet is releasably bonded to the adhesive portion of each wing, and each release sheet protrudes forward from the front side end of the packaging material, and the packaging material and each release sheet are Provided is an individual package of absorbent articles in which an outer surface side of a packaging material and each release sheet are fixed by respective fixing portions.

  Since the individual package of the absorbent article of the present invention can raise the wing when the release sheet attached to the wing is peeled off, it is not necessary to pick up the wing with a finger and raise it. For this reason, wearing to the underwear of the absorptive article using wing becomes hygienic.

It is the partial expansion perspective view which showed preferable one Embodiment (1st Embodiment) of the individual packaging body of the absorbent article of this invention. It is the principal part top view which showed typically the individual packaging body of the absorbent article of 1st Embodiment. It is the principal part top view which showed typically the example of the form of the fixing | fixed part. It is the top view which showed the example of the shape of the adhesion part typically. It is the perspective view which showed the removal method of the packaging material. It is the top view which showed typically the 2nd embodiment which concerns on the individual packaging body of the absorbent article of this invention. It is sectional drawing of the state which folded the individual package which showed typically 3rd Embodiment which concerns on the individual package of the absorbent article of this invention, and a top view of the state which expand | deployed the individual package. It is the partial fracture | rupture perspective view which showed an example of the sanitary napkin as an absorbent article. It is the perspective view which showed the measurement position of the raising angle and standing | starting height of a wing.

A preferred embodiment (first embodiment) of an individual package of absorbent articles according to the present invention will be described below with reference to FIGS. 1 and 2.
In the individual package 20 (20A) of the absorbent article of the present specification, “front” refers to the lower abdomen direction when the absorbent article is worn, and “rear” refers to the buttocks when the absorbent article is worn. The direction. Moreover, in this specification, the surface which contacts skin in a wearing state is called a skin contact surface, and the surface located on the relatively opposite side, that is, the surface farther from the skin than the skin contact surface is non-skin contact It is called a surface. In addition, the surface closer to the skin is referred to as the skin contact surface side, and the far surface is referred to as the non-skin contact surface side.

  As shown in FIGS. 1 and 2, the absorbent article wrapped in the individual package 20 (20A) of the present embodiment is, for example, a thin sanitary napkin 10 (10A) called a slim type. Hereinafter, the individual packaging body of a thin sanitary napkin will be described in detail.

The individual package 20 of the absorbent article is formed by folding the sanitary napkin 10 in the longitudinal direction of the main body 4 together with the packaging material 30 disposed on the non-skin contact surface, and sealing the packaging material 30.
In the sanitary napkin 10, each wing 5 is folded from the boundary base end position of the main body 4 and the wing 5 to the skin contact surface side of the main body 4. Further, the sanitary napkin 10 is folded so that the portion located behind the wing 5 overlaps the portion having the wing 5 in the longitudinal direction. Furthermore, it is folded in the longitudinal direction so that a portion located in front of the wing 5 overlaps therewith.

  The release sheet 7 is disposed behind the folding position L <b> 1 in front of the wing 5 between the non-skin contact surface side surface of each wing 5 and the packaging material 30. The release sheet 7 is detachably bonded to the adhesive portion 6 disposed on the non-skin contact surface of the wing 5. In the present napkin 1, since the adhesive portion 6 is provided only near the center in the longitudinal direction of the wing 5, the wing 5 and the release sheet 7 are only near the center in the longitudinal direction and on both the left and right sides in the width direction. Adhering only with. Further, the packaging material 30 and the release sheet 7 are fixed by the fixing portion 31 in the center region in the width direction with both sides in the width direction of the release sheet 7 as non-adhesive regions. In the napkin 1, the fixing portion 31 is arranged only on the front end portion side of the packaging material 30 positioned in the front and the front side of the release sheet 7 in the folded individual packaging state. It extends forward from the part. Therefore, the fixing portion 31 and the adhesive portions 6 (6a) and 6 (6b) are arranged at the apexes of the isosceles triangle in which the fixing portion 31 is arranged at the apex position as shown in FIG. Yes. In other words, for example, the distances from the center C3 of the fixing portion 31 to the respective centers C6 of the adhesive portions 6a and 6b are equal.

  Since the front side of the release sheet 7 is not folded in the width direction by arranging the release sheet 7 behind the folding position L1 in front of the wing 5, the release sheet 7 is peeled from the front side toward the rear side. In this case, the release sheet 7 is easily bent along the longitudinal direction with the fixing portion 31 as a base point. On the other hand, when the front side of the release sheet 7 is bent along the width direction, it is the same as the case where an L-shaped cross-section member is arranged on the front side, and the release sheet 7 from the front side is based on the fixing portion 31. When peeled toward the rear side, the release sheet 7 is less likely to bend along the longitudinal direction.

  In the individually packaged state, the release sheet 7 protrudes further forward than the front end of the packaging material 30, and the packaging material 30 and the release sheet 7 include the outer surface side of the packaging material 30 and the release sheet 7. It is fixed by the fixing part 31. Here, the “front end” in the individual packaging state is an end portion of the packaging material 30 located on the front side when the portion located at the rear end is folded in the unfolded state, and the folding position L1 is Not the end. Moreover, the back side edge part of the packaging material 30 in the individual packaging body of FIG. 1 turns into the front edge part in the expansion | deployment state. For the fixing part 31, for example, an adhesive tape is used. The peeling force (hereinafter also referred to as first peeling force) between the fixing portion 31 and the peeling sheet 7 is larger than the peeling force (hereinafter also referred to as second peeling force) of the release sheet 7 to the adhesive portion 6. It has a peeling force that can peel the release sheet 7 from the adhesive portion 6 without peeling off the adhesive tape. The first peeling force is 2.5 times or more, preferably 3.5 times or more, more preferably 5 times or more of the second peeling force with respect to the adhesive portion 6 of the release sheet 7. Moreover, as an upper limit of the said 1st peeling force, 20 times or less of the 2nd peeling force between the peeling sheet 7 and the adhesion part 6 may be especially 15 times or less. Incidentally, the 2nd peeling force with respect to the adhesion part 6 of the peeling sheet 7 is 50 cN or less, Preferably it is 40 cN or less, More preferably, it should just be 30 cN or less. The second peeling force is 5 cN or more, preferably 10 cN or more, and more preferably 15 cN or more. More specifically, it is 5 cN to 50 cN, preferably 10 cN to 40 cN, and more preferably 15 cN to 30 cN. Usually, it may be about 20 cN. If the second peeling force is too small, the release sheet 7 is easily peeled off, and if the second peeling force is too large, the release sheet 7 is difficult to peel off.

  Further, it is sufficient that the first peeling force between the fixing portion 31 and the release sheet 7 is 50 cN or more, preferably 70 cN or more, more preferably 100 cN or more than the second peeling force with respect to the adhesive portion 6 of the release sheet 7. If the first peeling force is too small, the packaging material 30 is peeled off from the peeling sheet 7 before the peeling sheet 7 is peeled off, and the peeling sheet 7 cannot be peeled off from the adhesive portion 6 of the wing 5 together with the packaging material 30. The first peeling force is sufficient if the release sheet 7 can be peeled off. As described above, it is sufficient that the difference between the two peeling forces is 100 cN or more, and a difference larger than 300 cN is not required.

  The first peeling force here is a force generated by the contact between the fixing part (adhesive tape or the like) and the release sheet, and the second peel force is the peelability of the release sheet 7 with respect to the adhesive part 6, It is a force that resists when the release sheet 7 is to be peeled off. Further, “peeling” means that it can be easily removed by picking with a finger, whereas “adhesion” means that it cannot be easily removed by being picked with a finger.

  The first peel force and the second peel force are evaluated using Tensilon RTC-1210A manufactured by Orientec Co., Ltd. and a data processing system for tensile / compression / bending tests. The measurement target portion is cut out from the absorbent article to obtain a measurement sample, the distance between chucks of Tensilon is set to 10 mm, one end (packaging material) in the longitudinal direction of the measurement sample is fixed to one chuck, and the other end (release sheet) ) To the other chuck. And the distance between chuck | zippers is extended at a speed | rate of 300 mm / sec, a measurement sample is made to T-peel, and the maximum value (cN) which the indicator (load meter) shows in the meantime is read. The read maximum values are defined as a first peeling force and a second peeling force, respectively.

  In the evaluation of the first peeling force, the packaging material adhered to the release sheet through the fixing portion is used as a measurement sample, the packaging material is fixed to one chuck, and the release sheet is fixed to the other chuck. . In the evaluation of the second peeling force, a wing portion in a state where the peeling sheet is not peeled is used as a measurement sample, the peeling sheet is fixed to one chuck, and the wing portion is fixed to the other chuck. In addition, when the whole wing part is covered with the peeling sheet, a part peeling sheet is removed and the wing part is exposed and measured.

The length C and the width B of the fixed portion 31 and the distance C between the widthwise outer portions of the adhesive portions 6a and 6b of the wings 5a and 5b are set as follows. In addition, the shape of the fixing | fixed part 31 and the shape of the adhesion part 6 are the cases made into a rectangle.
The length A of the fixing portion 31 is 8 mm or more, preferably 12 mm or more, more preferably 14 mm or more, and the length A is 20 mm or less, preferably 18 mm or less, more preferably 16 mm or less. More specifically, it is 8 mm to 20 mm, preferably 12 mm to 18 mm, and more preferably 14 mm to 16 mm. When the length A is too short, the fixing portion 31 is easily peeled off. When the length A is too long, the adhesive region of the fixing portion 31 may protrude from the release sheet 7 and come into contact with the surface sheet.

  The width B of the fixing portion 31 is 5 mm or more, preferably 7 mm or more, more preferably 10 mm or more, and the width B is 20 mm or less, preferably 18 mm or less, more preferably 16 mm or less. More specifically, the thickness is 5 mm to 20 mm, preferably 7 mm to 18 mm, and more preferably 10 mm to 16 mm. When the width B is too short, the fixing portion 31 is easily peeled off depending on the fixing force of the fixing portion 31. When the width B is too long, the lifting angle and the rising height of the wing 5 are lowered.

  Furthermore, the distance C between the widthwise outer side portions of the adhesive portion 6 of the wing 5 in the individually packaged state is 60 mm or more, preferably 62 mm or more, more preferably 65 mm or more, and the distance C is 80 mm or less, preferably It is 78 mm or less, More preferably, it is 75 mm or less. More specifically, the thickness is 60 mm to 80 mm, preferably 62 mm to 78 mm, and more preferably 65 mm to 75 mm. When the distance C is too short, the lifting angle and the rising height of the wing 5 are low, and when the distance C is too long, when the release sheet 7 is peeled off, the wing base end position with the crease is attracted and folded. Since the wrinkle-free region is lifted, the rising angle of the wing 5 is low but the rising angle is low.

  Therefore, B / C is 1/16 or more, preferably 1/11 or more, more preferably 1 / 7.5 or more, and B / C is 1/3 or less, preferably 1 / 3.4 or less, More preferably, it is 1/4. 1 or less. More specifically, B / C = 1/16 to 1/3, preferably 1/1 to 1 / 3.4, and more preferably 1 / 7.5 to 1/4. When B / C is too small, when the release sheet 7 is peeled off, the wing base end position with the crease is attracted and the region without the crease is lifted. When the release sheet 7 is peeled off, when the release sheet 7 is peeled off, the central portion of the release sheet 7 is hardly lifted, so that the lifting angle and the startup height of the wing 5 are reduced.

As shown in FIG. 3A, the fixing portion 31 can be a fastening tape. In this case, the outer surface of the packaging material 30 and the surface of the release sheet 7 (the surface opposite to the side that is adhered to the adhesive portion 6) are bonded by the fastening tape.
As shown in FIG. 3B, the fixing portion 31 can use an adhesive. In this case, the adhesive may be any adhesive, but for example, a hot melt adhesive that can ensure flexibility after bonding is preferable. When the adhesive is used, the inner surface of the packaging material 30 and the surface of the release sheet 7 (the surface opposite to the side that is adhered to the adhesive portion 6) are adhered to each other.

  The adhesive part 6 of the wing 5 is generally rectangular as described above. However, in the individual package of the present invention, when the release sheet 7 is peeled off, the adhesive portion 6 of the wing 5 is directed from the inner side to the outer side in the width direction toward the front side of the wing 5 in order to easily lift the wing 5. It is preferable to make it narrow. An example of such a configuration is a shape as shown in FIG. As shown in FIG. 4A, the adhesive portions 6 a and 6 b may be a right trapezoid in which a right angle is arranged on the outside of the main body 4. Also, as shown in FIG. 4B, the adhesive portions 6a and 6b have a trapezoidal shape or the like having an upper base and a lower base parallel to the longitudinal direction of the main body 4, and an upper base having a short side on the inside. There is a leg trapezoid. In the drawing, an isosceles trapezoid is shown. Although not shown, a right triangle having a right angle on the outside of the main body 4 may be used. Furthermore, although the figure having a straight side is shown above, the side may be a curve, and any shape can be used as long as the figure narrows from the inner side to the outer side in the width direction toward the front side of the wing 5. There may be.

When the adhesive portions 6a and 6b are close to the base of the wing 5, the force to lift the wing 5 is easily transmitted to the base with the crease, and the front side of the adhesive portions 6a and 6b is linearly separated from the release sheet 7 It is good to be fixed.
Further, when the release sheet is peeled off, even if only a part of the front side of the adhesive portions 6a and 6b is peeled off from the release sheet 7, the peeled portion becomes a starting point and easily peels off, and the central region of the release sheet 7 is lifted. Before, the release sheet 7 is peeled off. The basic shape of the adhesive portions 6a and 6b is a rectangle, and in this case, since the inside of the adhesive portions 6a and 6b is close to the fixing portion 31, when the central region of the release sheet 7 is lifted, the inside front of the adhesive portions 6a and 6b There is a possibility that the part is peeled off, and the peeling sheet 7 is easily peeled off from the starting point. As an avoidance means, the center of the release sheet 7 can be lifted more stably by moving the inside of the adhesive portions 6a and 6b away from the fixing portion 31 as much as possible. For this reason, as described above, the adhesive portions 6a and 6b are narrowed from the inner side to the outer side in the width direction. Thus, it becomes easy to make the wing 5 stand by raising the center of the peeling sheet 7 stably.

  Further, the wing 5 of the napkin 1 has a portion having a width that gradually increases from the front portion toward the rear portion in a state of individual packaging, and includes a region having the maximum width. At this time, the length in the longitudinal direction gradually decreases from the outer side in the width direction toward the inner side. And the width | variety of the wing 5 becomes narrow toward a longitudinal direction back from a maximum width area | region rear end part. In the form of FIG. 2, the wing 5 is substantially trapezoidal. The adhesive portion 6 exists in the region of the maximum width of the wing 5 with respect to the longitudinal direction, and the napkin 1 is arranged only in the region of the maximum width. The wing shape is preferable because when the individual wrapping body is opened from the fixing portion 31, the wing portion that rises is difficult to return to the skin contact surface side. In particular, by providing the adhesive portion 6 in the maximum width portion of the wing 5, the rising property of the wing 5 can be improved.

Next, an example of a method for peeling off the packaging material 30 from the sanitary napkin 10 will be described below with reference to FIG.
As shown to Fig.5 (a), the front side of the folded packaging material 30 is peeled off, and the front side of the main body 4 of the sanitary napkin 10 as an absorbent article is opened.
Although not shown, the packaging material 30 is peeled off as it is rotated from the front side to the back side of the sanitary napkin 10. In FIG. 4A, the upper side of the drawing indicates “front” of the sanitary napkin 10, and the lower side of the drawing indicates “rear”.

  Furthermore, as shown in FIG.5 (b), the peeling sheet 7 currently fixed to the fixing | fixed part 31 is peeled off from the adhesion part 6 (not shown) of the wing 5 so that the packaging material 30 may be pulled back. At this time, since the fixing portion 31 is fixed only at the front center portion of the release sheet 7, the center portion of the release sheet 7 is lifted by the fixing portion 31. As a result, both wings 5 adhered to the release sheet 7 via the adhesive portion 6 are also lifted. In FIG. 4B, the upper side of the drawing indicates “rear” of the sanitary napkin 10, and the lower side of the drawing indicates “front”.

  When the packaging material 30 is further pulled rearward, as shown in FIG. 5C, the adhesive force (not shown) with the fixing portion 31 (not shown) rather than the adhesive strength (second peeling force) with the adhesive portion 6. Since the first peeling force is superior, the peeling sheet 7 (not shown) is peeled off from the adhesive portion 6. In the drawing, the state where peeling has been completed is shown. Since the central part of the release sheet 7 is lifted while the release sheet 7 is being peeled off from the adhesive part 6, the tip of the wing 5 is also lifted accordingly. And even if the peeling sheet 7 peels completely from the adhesion part 6 and peels off the packaging material 30 (not shown) from the sanitary napkin 10, the state where the front-end | tip part 5T of the wing 5 was lifted is hold | maintained. The tip portion 5T is kept lifted to a height that can be picked up by a finger, for example, a height of 5 mm or more. In FIG. 3C, the upper side of the drawing indicates “rear” of the sanitary napkin 10, and the lower side of the drawing indicates “front”.

  The reason why the wing 5 is maintained in the lifted state as described above is that when the release sheet 7 is peeled off, the center portion of the release sheet 7 is always pulled upward by the fixing portion 31, so that the wings 5 are prone to rise. It is. Therefore, the sanitary napkin 10 can be attached to the undergarment (not shown) by picking the wing 5 without touching the skin contact surface (front surface) side of the main body 4 with the fingertip. Therefore, the sanitary napkin 10 is attached to the underwear while maintaining a sanitary good state on the skin contact surface side.

Since the individual package 20 of the above-described absorbent article can raise the wing 5 when the release sheet 7 attached to the wing 5 is peeled off, it is not necessary to pick up the wing 5 with a finger and raise it. For this reason, the sanitary napkin 10 can be attached to the underwear in a sanitary good state using the wings 5 without the fingertip touching the skin contact surface side of the sanitary napkin 10.
Moreover, since the release sheet 7 is adhered to the rear end portion of the packaging material 30 by the fixing portion 31, and the release sheet 7 is arranged on the central portion side in the longitudinal direction of the packaging material 30, what is peeled off from the sanitary napkin 10 It is not longer than the length of the packaging material 30. Therefore, the packaging material 30 including the release sheet 7 peeled off from the sanitary napkin 10 can be easily cleaned and handled.

  Next, 2nd Embodiment of the individual package of the absorbent article which concerns on this invention is described below, referring FIG.

As shown in FIG. 6, the absorbent article wrapped in the individual wrapping body 20 of the present embodiment is a thin sanitary napkin 10 called a slim type as described in the first embodiment, for example.
Hereinafter, although the individual packaging body of a thin sanitary napkin will be described in detail, in the following description, only portions different from the first embodiment will be described in detail.

The individual package 20 (20B) of the absorbent article according to the second embodiment is formed by folding the sanitary napkin 10 together with the packaging material 30 in the longitudinal direction of the main body 4 and sealing the packaging material 30.
The configuration of the individual package 20B of the absorbent article is different only in the configuration and arrangement of the release sheet 7 and the arrangement of the fixing portion 31, and other configurations are the individual package of the absorbent article of the first embodiment described above. Same as 20A.
The individual wrapping body 20B of the absorbent article has a wing 5a between the wings 5a and 5b on the non-skin contact surface side and the packaging material 30 and behind the folding position L1 in front of the wings 5a and 5b. The release sheets 7a and 7b are separately arranged with respect to 5b. The release sheets 7a and 7b are detachably bonded to the adhesive portions 6a and 6b disposed on the wings 5a and 5b, respectively.

  The release sheets 7a and 7b protrude further forward than the front end of the packaging material 30, and the packaging material 30 and the release sheets 7a and 7b are the outer surface side of the packaging material 20 and the release sheets 7a and 7b. Is fixed by the fixing portions 31a and 31b. For example, an adhesive tape is used for the fixing portions 31a and 31b. The adhesive strength of the adhesive tape is greater than the adhesive strength of the release sheets 7a and 7b to the adhesive portions 6a and 6b, and the adhesive strength that can release the release sheets 7a and 7b from the adhesive portions 6a and 6b without peeling off the adhesive tape. Have. The adhesive strength is the same as in the first embodiment.

  The procedure for taking out the sanitary napkin 10 from the packaging material 30 is the same as in the first embodiment described above.

  The adhesive portions 6 a and 6 b may be located at the front, rear, left and right substantially in the center with respect to the wing 5. On the other hand, as for the position of the fixing | fixed part 31, it is most preferable that the width direction center of the adhesion parts 6a and 6b and the width direction center of the fixing | fixed part 31 exist in the substantially the same position. That is, when the position of the fixing part 31 is shifted from the center in the width direction of the adhesive parts 6a, 6b and the fixing part 31 is slightly disengaged from the width of the adhesive parts 6a, 6b, the adhesive part 6a, This is because, even if a part of the front side of 6b is peeled off, it becomes easy to peel off from that point, and the wing 5 is difficult to lift. If the fixing portion 31 is positioned within the width of the adhesive portions 6a and 6b, the force to be peeled to the front side of the adhesive portions 6a and 6b is evenly applied in the width direction, so that the adhesive portions 6a and 6b may be partially removed. Because it disappears.

The individual package 20B of the absorbent article of the second embodiment described above has the same operational effects as the individual package 20A of the absorbent article of the first embodiment described above. In particular, in the individual package 20B, since the separated release sheets 7a and 7b are arranged in the adhesive portions 6a and 6b arranged in the wings 5a and 5b, respectively, than the individual package 20A in the first embodiment. Wings 5a and 5b are likely to rise.
In the case of the first embodiment described above, the left and right wings 5 are lifted by a single release sheet 7. In this case, one wing 5 is desired to be lifted toward the left side, while the other wing 5 is desired to be lifted toward the right side. In other words, the direction to be lifted is a contradictory direction (like a tug of war), and even if the release sheet 7 is lifted, there is only a certain lifting height.
On the other hand, in the case of 2nd Embodiment, since the peeling sheet 7 is distribute | arranged to each wing part 5, the force which opposes in the direction which wants to lift a wing part does not act, Compared with 1st Embodiment, Wing 5 is Easier to get up.

  Next, 3rd Embodiment of the individual package of the absorbent article which concerns on this invention is described below, referring FIG.

As shown in FIG. 7, the absorbent article wrapped in the individual package 20C of the present embodiment is a thin sanitary napkin 10 (10C) called a slim type, and the sanitary product of the first embodiment described above. The longitudinal direction is longer than that of the napkin 10A.
Hereinafter, although the individual packaging body of a thin sanitary napkin will be described in detail, in the following description, only portions different from the first embodiment will be described in detail.

The individual packaging body 20 (20C) of the absorbent article according to the third embodiment is formed by folding the sanitary napkin 10C three times in the longitudinal direction of the main body 4 together with the packaging material 30, and sealing the packaging material 30.
The configuration of the sanitary napkin 10C is different from that of the sanitary napkin 10A of the first embodiment described above except that the length in the longitudinal direction is different and only the folding position and the number of folding are different. .
That is, in the sanitary napkin 10 </ b> C, each wing 5 is folded from the boundary base end position between the main body 4 and the wing 5 to the skin contact surface side of the main body 4. Further, a portion of the sanitary napkin 10C located at the rearmost side from the wing 5 in the longitudinal direction is folded to the skin contact surface side at the folding position L3. At this time, the end on the rear side of the packaging material 30 is positioned closer to the folding position L3 than the folding position L2 so that the folded portion is not folded again at the folding position L2 where the folding is performed next. Furthermore, it is folded at the folding position L <b> 2 so that the part including the part folded forward from the wing 5 overlaps on the part having the wing 5. At this time, the folding position L3 of the folded part is arranged closer to the folding position L2 than the folding position L1. Furthermore, it is folded at the folding position L <b> 1 so that a portion located in front of the wing 5 is overlapped therewith.

  The individual package 20C of the absorbent article of the third embodiment described above has the same operational effects as the individual package 20A of the absorbent article of the first embodiment described above. Thus, the configuration of the present invention can be applied to the sanitary napkin 10C having a long length in the longitudinal direction.

  Next, the basic configuration of the thin sanitary napkin 10 used in each of the above-described embodiments will be described below with reference to FIG. In FIG. 8, the width direction of the sanitary napkin 10 is indicated by X, and the longitudinal direction is indicated by Y.

  As shown in FIG. 8, the sanitary napkin 10 includes a liquid-permeable top sheet 1 disposed on the skin contact surface side, and a liquid-impermeable back sheet 2 disposed on the non-skin contact surface side. A vertically long main body (also referred to as an absorbent main body) 4 having liquid retaining properties interposed between the top sheet 1 and the back sheet 2, and outwardly on both sides of the main body 4 And wings 5 (5a, 5b) extending to the front. Each base portion of the wings 5a and 5b is formed in an arc shape or an obtuse angle with the wing 5 spread. In the drawing, the wing 5 is shown in a folded state.

  The shape of the main body 4 is a vertically long shape having a longitudinal direction (Y direction) arranged from the lower abdomen side to the buttocks side via the wearer's crotch portion and a width direction (X direction) perpendicular thereto. Shape. In the present invention, unless otherwise specified, the side in contact with the human body is referred to as the skin contact surface side or the surface side, and the side in contact with the underwear is referred to as the non-skin contact surface side or the back surface side. Further, a direction having a relatively long length in plan view of the sanitary napkin 10 is referred to as a longitudinal direction, and a direction orthogonal to the longitudinal direction is referred to as a width direction. The longitudinal direction typically coincides with the front-rear direction of the human body in a worn state.

The main body 4 can be made of a material usually used for this type of sanitary napkin or the like, and is not particularly limited.
The top sheet 1 is preferably formed of a hydrophilic nonwoven fabric. The hydrophilic nonwoven fabric is an air-through nonwoven fabric, a point-bonded nonwoven fabric, a spunbonded nonwoven fabric, a spunlace nonwoven fabric, and a nonwoven fabric called three-dimensionally shaped nonwoven fabric, the fibers of which are polypropylene single fibers or polypropylene and polyethylene composite fibers, A fiber that has been subjected to a hydrophilic treatment with a composite fiber of polyethylene terephthalate and polyethylene can be preferably used.

  The said back surface sheet 2 will not be specifically limited if it has waterproofness and moisture permeability. For example, a film is formed by melt-kneading a hydrophobic thermoplastic resin, a fine inorganic filler made of calcium carbonate or the like or an incompatible organic polymer, and the film is obtained by uniaxial or biaxial stretching. A porous film is mentioned. Examples of the thermoplastic resin include polyolefin. Examples of the polyolefin include high to low density polyethylene, linear low density polyethylene, polypropylene, polybutene and the like, and these can be used alone or in combination.

  As the absorbent body 3, for example, a fiber aggregate or a combination of this and an absorbent polymer can be used. As the fibers constituting the fiber assembly, hydrophilic natural fibers such as pulp fibers, synthetic fibers (preferably subjected to hydrophilic treatment), and the like can be used. The basis weight is not particularly limited, but 150 g / m 2 to 500 g / m 2 is preferable. Moreover, the coating sheet which coat | covers the absorber 3 can also be used. This coated sheet includes thin paper such as hydrophilic tissue paper (thin paper), non-woven fabric made of hydrophilic fibers such as cotton and rayon, and non-woven fabric made by subjecting synthetic resin fibers to hydrophilic treatment (spunbond-meltblown) -Spunbond (SMS), spunbond-meltblown-meltblown-spunbond (SMMS), spunbond-spunbond-meltblown-spunbond (SSMS), etc.

The wing 5 is made of a soft non-woven fabric having a high water repellency and a low fiber density, and its base is sandwiched and fixed between the top sheet 1 and the back sheet 2. In addition, each wing 5 has an adhesive portion 6 on the back side. The pressure-sensitive adhesive part 6 is for fixing the wing 5 to the underwear and preventing the sanitary napkin 10 from being displaced with respect to the underwear. Various pressure-sensitive adhesives can be used without any particular limitation. A hot melt adhesive is used for the pressure-sensitive adhesive portion 6, and examples of the hot melt adhesive include a styrene-butadiene copolymer and a styrene-isoprene copolymer. And the wing 5 is bendable, and is folded to the surface sheet 1 side in the present invention. Therefore, the adhesive part 6 faces the front side.
Thus, since the wing 5 corresponding to the crotch has a soft non-woven fabric when the sanitary napkin 10 is used, even if this portion touches the skin, it feels soft and feels not stiff like a film.
The said wing 5 is not limited to the said form, It distribute | arranges so that it may extend outside the both sides of the main body 4, has the said adhesion part 6, and folds to the surface sheet 1 side. Any form can be used as long as it is.

  Further, a release sheet 7 is attached to the adhesive portions 6 of both folded wings 5 across the adhesive portions 6 (6a, 6b). The release sheet 7 only needs to have a size that covers both adhesive portions 6 and does not necessarily have a rectangular shape as illustrated. Any shape may be used as long as the adhesive portions 6a and 6b are completely covered. For example, in addition to a rectangle (rectangle, square), for example, a polygon, an oval, an ellipse, a circle, or their shape The shape may be a partially extended shape, a partially narrowed shape, or the like.

  The said wing 5 peels off the said peeling sheet 7 from the said adhesion part 6, wraps around the crotch part of a wearer's shorts, affixes it, and fixes the above-mentioned adhesion part 6 as a fixing material. The wing 5 is disposed in a region facing the excretion part (vagina opening) of the main body 4. This excretory part facing region is the central portion in the longitudinal direction of the sanitary napkin 10 for daytime use, and is the front in the longitudinal direction of the sanitary napkin 10 for use at night time. That position is set.

  The release sheet 7 may be made of the same material as that of a general sanitary napkin release sheet, and specifically, a release treatment in which the coating amount of the silicone treating agent is, for example, 0.1 to 5 g / m 2. Fine paper, glassine paper, polyethylene film, composites thereof and the like. This peeling treatment can be performed using a known method. Further, the release sheet 7 only needs to have a size that covers both the adhesive portions 6 and does not necessarily have a rectangular shape as illustrated. Any shape may be used as long as the adhesive portions 6a and 6b are completely covered. For example, in addition to a rectangle (rectangle, square), for example, a polygon, an oval, an ellipse, a circle, or their shape The shape may be a partially extended shape, a partially narrowed shape, or the like.

  As the material of the packaging material 30 described with reference to FIG. 1 and the like, known materials can be used, and specifically, polypropylene, polyester, polyethylene, polyvinyl alcohol, or nonwoven fabric or paper having a thickness of 5 to 50 μm. , And packaging materials such as these composite materials. The peeling treatment of the inner surface of the packaging material 30 can be performed using a known technique. Specifically, a peeling treatment agent is applied to the entire inner surface of the packaging material, or a peeling tape, a release paper, a peeling treatment. This can be done by attaching a release member such as a non-woven fabric, a release-treated polyethylene laminated paper, or a release-treated polyethylene film.

Next, with respect to the length A and the width B of the fixing portion 31 and the distance C between the width direction outer side portions of the adhesive portion 6, (1) the width B is fixed to 5 mm and the distance C is fixed to 80 mm. (2) When the length A is fixed to 10 mm and the distance C is fixed to 80 mm and the width B is changed, (3) The length A is fixed to 10 mm and the width B is fixed to 5 mm, and the distance C is changed. The lift angle α (°) of the wing 5 (see FIG. 9A), the rising height h (mm) of the wing 5 (see FIG. 9B), and the fingertip of the main body 4 are changed. It was investigated whether or not the skin contact surface side surface was touched.
The lifting angle α (°) of the wing 5 is determined by opening the packaging material 30 and lifting the release sheet 7 together with the packaging material 30 through the fixing portion 31 and the surface of the wing 5 on the skin contact surface side. The angle formed was measured three times with a protractor and the average value was determined.
Thus, measuring the opening angle is technically significant because lifting the central area of the release sheet 7 is largely related to the rising height of the wing 5.
The rising height h (mm) of the wing 5 is measured three times with a ruler from the surface on the skin contact surface side of the main body 4 immediately after the release sheet 7 is peeled off to the front end 5T of the wing 5 in the vertical direction. The average value was obtained.
For the evaluation of “whether or not the surface is touched”, a test of picking the tip of the wing 5 immediately after the release sheet 7 was peeled off with a fingertip was performed three times. When the number of times that the fingertip does not touch the skin contact surface side of the main body 4 and the wing 5 is picked frequently is indicated by “N”, the number of times of touching the skin contact surface side of the main body 4 When there were many, it was described as "T".
Table 1 shows the results of the higher evaluation.

(1) When width B is fixed to 5 mm, distance C is fixed to 80 mm, and length A is changed,
When the length A of the fixing part 31 was 5 mm, the fixing part 31 was easily detached from the release sheet 7. Further, the lifting angle θ of the wing 5 was 15 ° to 20 °, and the rising height h was 2 mm to 4 mm, which was insufficient. For this reason, when picking the wing 5 with a fingertip, the fingertip touched the skin contact surface side of the main body 4 (evaluation “T”).
On the other hand, when the length A of the fixing portion 31 was 10 mm, 15 mm, and 20 mm, the lifting angle θ was 30 ° to 35 °, and the rising height h was 9 mm to 15 mm. For this reason, when picking the wing 5 with a fingertip, the fingertip did not touch the skin contact surface side of the main body 4 (evaluation “N”). Therefore, it was found that the length A of the fixing portion 31 needs to be 10 mm or more.

(2) When length A is fixed to 10 mm, distance C is fixed to 80 mm, and width B is changed,
When the width B of the fixing portion 31 was 30 mm, the wing lifting angle θ was 15 ° to 20 °, and the rising height h was 2 mm to 4 mm, which was insufficient. For this reason, when picking the wing 5 with a fingertip, the fingertip touched the skin contact surface side of the main body 4 (evaluation “T”).
On the other hand, when the width B of the fixing portion 31 was 5 mm, 10 mm, and 20 mm, the lifting angle θ was 25 ° to 35 °, and the rising height h was 5 mm to 15 mm. For this reason, when picking the wing 5 with a fingertip, the fingertip did not touch the skin contact surface side of the main body 4 (evaluation “N”). Therefore, it was found that the width B of the fixing portion 31 needs to be 20 mm or less.

(3) When length A is fixed to 10 mm, width B is fixed to 5 mm, and distance C is changed,
When the distance C of the fixing portion 31 is 50 mm, the wing lift angle θ is 15 ° to 20 °, and the rising height h is 2 mm to 4 mm, which is insufficient. For this reason, when picking the wing 5 with a fingertip, the fingertip touched the skin contact surface side of the main body 4 (evaluation “T”).
On the other hand, when the distance C of the fixing portion 31 is 80 mm, 70 mm, and 60 mm, the lifting angle θ is 25 ° to 35 °, and the rising height h is 5 mm to 15 mm. For this reason, when picking the wing 5 with a fingertip, the fingertip did not touch the skin contact surface side of the main body 4 (evaluation “N”). Therefore, it was found that the distance C of the fixing portion 31 needs to be 60 mm or more.

  The following additional remarks (individual package of absorbent articles) are disclosed with respect to the above-described embodiment and embodiment.

<1> A longitudinal body and an absorbent article having a pair of wings extending on both sides in the width direction of the body together with a packaging material disposed on the non-skin contact surface in the longitudinal direction of the body The absorbent article is an individual package of an absorbent article that is folded and sealed with the packaging material, and the absorbent article is configured such that each wing comes into contact with the skin of the main body from the base end position of the main body and the wing. A portion that is folded on the surface side and folded so as to overlap a portion located rearward of the wing on a portion having the wing in the longitudinal direction of the absorbent article, and further a portion located further forward than the wing Are folded in the longitudinal direction so as to overlap each other, and in the folded state, between the surface on the non-skin contact surface side of each wing and the packaging material, it is rearward from the folding position in front of the wing. Release sheet The release sheet is releasably adhered to the adhesive portion disposed on the non-skin contact surface side of the wing, and both widthwise sides are non-adhesive regions between the packaging material and the release sheet, The individual packaging body of the absorbent article fixed by the fixing | fixed part in the direction center area | region.
<2> In the state of an individual package, the release sheet protrudes forward from the front side end of the packaging material, and the packaging material and the release sheet are the outer surface side of the packaging material and the release sheet. The individual packaging body for absorbent articles according to <1>, wherein and are fixed by the fixing portion.
<3> The width B of the fixed portion and the distance C between the widthwise outer portions of the adhesive portions of the wings are described in <1> or <2>, where B: C = 1: 3 to 1:16. Individual package of absorbent articles.
<4> An absorbent article having a vertically long main body and a pair of wings extending on both sides in the width direction of the main body is folded in the longitudinal direction of the main body together with the packaging material, and the packaging material is sealed. The absorbent article is an individual package of the absorbent article, wherein each of the wings is folded from the boundary base end position of the main body and the wing to the skin contact surface side of the main body, and the absorbent Folded on the part having the wing in the longitudinal direction of the article so that the part located behind the wing overlaps, and further folded on the part so as to overlap the part located on the front side of the wing. A release sheet is arranged behind the folding position in front of each wing between the non-skin contact surface side surface of each wing and the packaging material. Removably adhered to the adhesive portions provided on the non-skin contact surface of the ing, and in the folded state, each release sheet is projected to the front side from the front side end of the packaging material, The said packaging material and each said peeling sheet are the individual packaging bodies of the absorbent article by which the outer surface side of the said packaging material and each said peeling sheet were fixed by each fixing | fixed part.
<5> The individual packaging body for absorbent articles according to any one of <1> to <4>, wherein the fixing portion is rectangular.
<6> The individual packaging body for absorbent articles according to <5>, wherein the width of the fixing portion is 5 mm or more and 20 mm or less.
<7> The length of the fixing part is 8 mm or more and 20 mm or less. In the individual packaging body <8> individual packaging state of the absorbent article according to <5> or <6>, in the width direction of the adhesive part of the wing The individual packaging body for absorbent articles according to any one of <1> to <7>, wherein the distance between the outer portions is 60 mm or more and 80 mm or less.
<9> The individual packaging of the absorbent article according to any one of <1> to <8>, wherein the adhesive portion of the wing narrows from the inner side in the width direction toward the outer side toward the front side of the wing. body.
<10> The absorbent article according to any one of <1> to <9>, wherein the peeling force between the fixing part and the peeling sheet is 50 cN or more larger than the peeling force between the peeling sheet and the adhesive part. Individual package.
<11> The peeling force between the fixing part and the release sheet is any one of the above <1> to <10>, which is 2.5 times or more and 20 times or less than the peeling force between the adhesive part and the release sheet. An individual package of the absorbent article according to 1.
<12> The individual packaging body for absorbent articles according to any one of <1> to <11>, wherein the fixing portion is a fastening tape.
<13> The individual package for absorbent articles according to any one of <1> to <11>, wherein the fixing portion is a hot melt adhesive.
<14> The individual wrapping body for absorbent articles according to any one of <1> to <13>, wherein the wing has a portion whose width increases from the front toward the rear in the individual wrapping state.
<15> The individual packaging body for absorbent articles according to <14>, wherein the adhesive portion is disposed in a maximum width portion of the wing.

DESCRIPTION OF SYMBOLS 1 Top sheet 2 Back sheet 3 Absorber 4 Main body (absorbent main body)
5, 5a, 5b Wing 6, 6a, 6b Adhesive part 7, 7a, 7b Release sheet 10 Sanitary napkin (absorbent article)
20 Individual packaging body of absorbent article 30 Packaging material 31, 31a, 31b Fixing part

Claims (6)

Folding an absorbent article having a vertically long body and a pair of wings extending on both sides in the width direction of the body together with a packaging material disposed on the non-skin contact surface in the longitudinal direction of the body, An individual package of an absorbent article formed by sealing the packaging material,
In the absorbent article, each wing is folded from the boundary base end position of the main body and the wing to the skin contact surface side of the main body, and on the portion having the wing in the longitudinal direction of the absorbent article. Folded so that the part located behind the wing overlaps, and further folded in the longitudinal direction so that the part located ahead of the wing overlaps,
In a folded state, a release sheet is arranged behind the folding position in front of the wing, between the surface on the non-skin contact surface side of each wing and the packaging material,
The release sheet is releasably adhered to the adhesive portion disposed on the non-skin contact surface side of the wing, and between the packaging material and the release sheet, both sides in the width direction are non-adhesive regions, and the center in the width direction. An individual package of absorbent articles fixed by a fixing part in the area.   In the state of the individual package, the release sheet protrudes from the front side end of the packaging material to the front side, and the packaging material and the release sheet are the outer surface side of the packaging material and the release sheet The individual package of the absorbent article according to claim 1, which is fixed by a fixing portion.   3. The absorbent article according to claim 1, wherein a distance B between the width B of the fixed portion and the widthwise outer side portions of the adhesive portions of the wings is B: C = 1: 3 to 1:16. Individual package. Absorption formed by folding an absorbent article having a vertically long main body and a pair of wings extending on both sides in the width direction of the main body in the longitudinal direction of the main body together with the packaging material, and sealing the packaging material An individual packaging of a property article,
In the absorbent article, each wing is folded from the boundary base end position of the main body and the wing to the skin contact surface side of the main body, and on the portion having the wing in the longitudinal direction of the absorbent article. Folded so that the part located behind the wing overlaps, and further folded in the longitudinal direction so that the part located ahead of the wing overlaps,
Between the surface on the non-skin contact surface side of each wing and the packaging material, a release sheet is arranged behind the folding position in front of each wing, respectively.
The release sheet is releasably bonded to the adhesive portion provided on the non-skin contact surface of each wing,
In the folded state, each release sheet protrudes from the front end of the packaging material to the front side, and the packaging material and each release sheet are the outer surface side of the packaging material and each release An individual package of absorbent articles in which a sheet is fixed by each fixing part.   The individual packaging body for absorbent articles according to any one of claims 1 to 4, wherein the adhesive portion of the wing narrows from the inner side to the outer side in the width direction toward the front side of the wing. The individual packaging body for absorbent articles according to any one of claims 1 to 5, wherein a peeling force between the fixing portion and the release sheet is 50 cN or more greater than a peeling force between the release sheet and the adhesive portion. .

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