JP4176724B2 - Packaging sanitary napkin - Google Patents

Description

  The present invention relates to a packaging sanitary napkin, and more particularly to a packaging sanitary napkin in which a sanitary napkin having a structure in which an absorbent body is sandwiched between a back sheet and a top sheet is wrapped with the packaging sheet.

  Today, sanitary napkins are required to have a camouflaged appearance to the extent that they are not known to be sanitary napkins before use. Is desired. FIG. 7 shows an example a of a conventional packaging sanitary napkin using individual packaging as a device to satisfy the former requirement.

  In the figure, the packaging sanitary napkin a is separated into a napkin body b, a release film c, and a packaging sheet d, and these are shown in a direction viewed from below. The napkin main body b has a structure in which an absorbent body and a liquid-permeable top sheet are stacked on a liquid-impermeable back sheet e, and a white polyethylene sheet is used for the back sheet e. The packaging sheet d is a color-printed pattern f with almost no space on one surface of a white opaque or translucent polyethylene sheet, and a seal tape g is pasted on one end thereof. An adhesive h is applied to the upper surface of the release film c, and an adhesive h ′ is applied near both front and rear ends of the back surface, and the release film c is adhered to the upper surface of the packaging sheet d by the adhesive h ′. The

  After the napkin body b is stacked on the upper surface of the packaging sheet d to which the release film c is adhered, the whole is folded into three as indicated by arrows in the figure, so that the napkin body b is wrapped with the packaging sheet d. Finally, both side edges i of the packaging sheet d are sealed. As a result, a sanitary napkin a for packaging, in which the napkin body b is packaged with the packaging sheet d, is completed. The pressure-sensitive adhesive h provided on the release film c is transferred to the back sheet e when the napkin body b is superimposed on the release film c. The mouth of the packaging sheet d is pressed with a sealing tape g.

  According to the packaging sanitary napkin a having such a shape, the entire exterior is almost opaque and has a fashionable appearance with a pattern f on almost the entire surface, and the shape and size are similar to a so-called pocket tissue. Therefore, the person who sees this is not conscious of being a sanitary napkin.

  However, in the above-described conventional packaging sanitary napkin a, the backsheet e of the napkin main body b is merely white, so that menstrual blood or the like absorbed by the absorbent body looks fresh through the backsheet e. This state cannot be hidden even if the napkin body b is folded. For this reason, every time you replace a napkin, you feel uncomfortable, and even if you throw it in a trash can, you do not want to be seen by people. Often to do. In addition, since the back sheet e is simply white or solid color, when unpacking and wearing the napkin body b, some people feel a very inorganic feeling and increase the depression of menstruation. There is also a problem of end.

  Therefore, it is not unimaginable to print a stylish pattern on the back sheet e as well as the packaging sheet d, but this increases the cost of printing.

  In addition, the packaging sanitary napkin a has a problem that since the pattern f is printed on the packaging sheet d, the pattern f is clearly visible and easily noticeable. If f is known, it will be displayed that the pattern f is a sanitary napkin, so that the effect of camouflaging that it is a sanitary napkin will be diluted.

  The present invention has been made in view of the above-described conventional problems, and it is possible to camouflage the menstrual blood spots absorbed by the absorbent body with a pattern by simply printing the pattern on one member. It is an object of the present invention to provide a novel packaging sanitary napkin that can be seen outside and can be camouflaged in appearance as well as in an unpacked state.

To this end, folded state and the napkin body having a absorber to the napkin body backsheet is outside between the liquid permeable top sheet and liquid-impermeable backsheet pieces In a packaging sanitary napkin comprising a packaged packaging sheet,
In the packaging sanitary napkin, comprising a release material interposed between the napkin body and a packaging sheet , printing a pattern on the side of the absorber of the back sheet, the packaging sheet is a nonwoven fabric, and The release material is a transparent material having a haze value of 59.13 to 86.39, and the pattern can be recognized through the back sheet , the packaging sheet, and the release material. .

  In this packaging sanitary napkin, since the pattern is printed on the side of the absorbent body of the back sheet of the napkin body, even if the menstrual blood spots absorbed by the absorbent body are visible from the outer surface of the back sheet, Is not understood at first glance because it is confused with the design.

  The pattern printed on the back sheet can be visually recognized in the unwrapped state, and can be visually recognized from the outside of the package sheet even before unpacking, so that it does not appear to be a sanitary napkin. Can be given. In addition, by simply printing the pattern on the back sheet, it is possible to perform both menstrual camouflage and the camouflage of the napkin body before unpacking, preventing an increase in cost and making it inorganic during use. It does not give a feeling, and it is not necessary to perform an excessive wrapping with tissue paper after use.

The packaging sanitary napkin according to claim 2 is characterized in that, in the packaging sanitary napkin according to claim 1, the haze value of the packaging sheet is 95 or less.

  If the haze value of the packaging sheet is too low, not only the pattern but also the outline of the napkin body will be clearly visible, and depending on the pattern, it may be more fashionable if it is not clearly visible. In this regard, as a result of evaluating a large number of prototypes, it was found that the haze value of the packaging sheet should be 95 or less, preferably 60 or less, regardless of the type of color.

The packaging sanitary napkin according to claim 3 is the packaging sanitary napkin according to any one of claims 1 to 2 , wherein the ratio of the total pattern area to the area of the back sheet is 10% or more and 80% or less. It is characterized by.

  The appropriate amount of the pattern in the present invention should be set in consideration of not only the form of the pattern itself but also the color and transparency of the packaging sheet or back sheet, but this is a ratio to the area of the back sheet. When viewed, as described in claim 4, it is preferable to set it to 10% or more and 80% or less.

  As described above, according to the present invention, it is possible to camouflage the menstrual blood spots absorbed by the absorbent body with a pattern only by printing the pattern on one member. In addition, the pattern can be shown to the outside and the appearance can be camouflaged not only in the unpacked state but also in the state before the unpacking.

Embodiments of a sanitary napkin for packaging according to the present invention will be described below with reference to the drawings.
[1. First Embodiment] (FIGS. 1 to 4)
1 to 4 show a packaging sanitary napkin 1 according to a first embodiment.

[A. (The shape of each part)
The sanitary napkin 1 for packaging is composed of a napkin body 3, a packaging sheet 21 wrapped in a folded state, and two release films 11, 15 interposed between them. ing. The napkin body 3 includes a liquid-impermeable back sheet 5, an absorbent body 7 held on one surface of the back sheet 5, and a liquid-permeable body layered on the back sheet 5 with the absorbent body 7 interposed therebetween. It has a multi-layer structure composed of a top sheet 9.

  The back seat 5 is integrally formed with a main portion 5a having a generally bowl shape that is long in the front-rear direction, and trapezoidal wings 5b that project from the middle portions of the left and right side edges of the main portion 5a to opposite sides. . The wing 5b is a part that is folded to the outer surface of the shorts during wearing to prevent displacement. As the material of the back sheet 5, a polyethylene sheet, a polyethylene laminated nonwoven fabric, or the like is used. Desirably, it has liquid impermeability and good air permeability, for example, an olefin-based resin such as polyethylene or polypropylene, and an inorganic filler. A microporous sheet obtained by stretching a melt-kneaded material is used.

  The absorbent body 7 is made of a pile fiber pulp in which cotton-like pulp, synthetic pulp, or the like is laminated with a relatively light basis weight, and is formed so as to form a sheet having a substantially uniform thickness on the entire surface. The planar shape of the absorbent body 7 is a substantially rectangular shape that is slightly smaller than the main portion 5a of the back sheet 5 and is long in the front-rear direction. The front and rear end edges 7a of the absorbent body 7 are the front and rear end edges of the back sheet 3. The arc is almost similar. The left-right width of the absorbent body 7 is approximately 50 to 80 mm in accordance with the crotch interval of an adult woman.

  Such an absorber 7 is bonded to the upper surface of the main portion 5a of the backsheet 5. This adhesion is performed by an adhesive such as hot melt, and is aligned so that the back sheet 5 protrudes with the same size on both the front and rear sides and the left and right sides of the absorbent body 7.

  The top sheet 9 is the same size as the back sheet 5 in a state in which the top sheet 9 is attached. However, the top sheet 9 has a main top sheet 9a having approximately the same size as the absorber 7 and two left and right side top sheets 9b. It is formed separately. Both the main top sheet 9a and the side top sheet 9b are formed of a nonwoven fabric or a plastic mesh sheet having a large number of holes. A projecting portion corresponding to the wing 5b of the back sheet 5 is integrally formed on the side top sheet 9b. The main top sheet 9a is adhered to the absorber 7 so as to be overlapped, and the side top sheet 9b is adhered to the back sheet 5 in a state where the linear side end portion thereof overlaps the side end portion of the main top sheet 9a. These adhesions are also performed by an adhesive such as hot melt or heat sealing.

  In order to maintain the shape of the absorbent body 7 and to prevent diffusion of menstrual blood absorbed by the absorbent body 7, the absorbent body 7 is wrapped with an absorbent sheet such as crepe paper, or the absorbent body 7 is used. Such an absorbent sheet may be stacked on top of each other.

  The release films 11 and 15 as release materials are obtained by coating a release agent on one surface of a white translucent plastic film as a base material. One release film 11 that is long in the front-rear direction has a rectangular sheet shape that is slightly smaller than the absorbent body 7, and the other release film 15 that is long in the left-right direction is large with the left and right wings 5 b as both ends. This is a rectangular sheet. For example, a polyethylene film is used as the base material of the release films 11 and 15, for example, silicon is used as the release agent, and the transparency has a haze value of about 59. The release films 11 and 15 are preferably colorless and transparent (hazy value 0), but when they are white and translucent, those having a haze value of 95 or less are preferable, and more preferably 60 or less. These release films 11 and 15 use the surface coated with a release agent as the upper surface.

  One release film 11 is provided with an adhesive material 13 on the upper surface thereof so as to extend in parallel with each other in the longitudinal direction, and an adhesive material 14 is applied to both end portions of the lower surface. An adhesive or a double-sided adhesive tape is used for the adhesive 14. Moreover, the adhesive material 17 is provided to the both ends of the upper surface of the other peeling film 15. The adhesive materials 13 and 17 are all transferred to the back sheet 5 and are provided by, for example, printing and applying hot melt. The adhesive materials 13 and 17 should preferably have an adhesive strength of 1 kg or more when peeled to an angle of 180 ° after being reciprocated once by a 2 kg roller while being attached to a cotton cloth. In particular, an adhesive strength range of 25 g / m 2 to 50 g / m 2 is desirable.

  The packaging sheet 21 is formed in a substantially rectangular shape by an SMS nonwoven fabric having a transparency with a haze value of about 60. The front and rear length of the packaging sheet 21 is substantially the same as the front and rear length of the back sheet 5, and the left and right width is slightly larger than the left and right width of the widest portion of the main portion 5 a of the back sheet 5. A seal tape 25 is affixed to one end of the packaging sheet 21 in the longitudinal direction so as to partially protrude. As the packaging sheet 21, in addition to the SMS nonwoven fabric, spunbond, spunlace, air-through and the like are suitable.

[B. Napkin body packaging)
One release film 11 is adhered to the back surface of the back sheet 5. This adhesion is performed by the adhesive 13 in a state in which the center portion of the release film 11 and the center portion of the main portion 5a of the back sheet 5 are aligned. After this adhesion is performed, the other release film 15 is adhered to the back surface of the back sheet 5. This adhesion is performed by the adhesive 17 by aligning both end portions of the release film 15 with the left and right wings 5b. Therefore, the release film 15 is provided in a state where the intermediate portion overlaps the one release film 11 from below. In addition, since the adhesives 13 and 17 are provided on the release agent coating surfaces of the release films 11 and 15, the release materials 11 and 15 overlap the back sheet 5, so that the adhesive materials 3 and 17 become the lower surface of the back sheet 5. Is transcribed. The sanitary napkin is prevented from shifting by sticking the back sheet 5 to the shorts by the adhesive materials 3 and 17.

  In this way, the napkin body 3 with the release films 11 and 15 adhered thereto has its wing part 27 (see FIG. 2), that is, the wing part 5b of the back sheet 5 and the overhang part of the side top sheet 9b and the release film 15. The wing part 27 consisting of both end parts of the wrapping sheet is folded so as to overlap the lower surface of the back sheet 5, and in this state, is overlapped and bonded to the upper surface of the packaging sheet 21. This adhesion is performed by an adhesive 14 provided on the lower surface of one release film 11 as shown in FIG.

  From this state, the packaging sheet 21 is folded into three together with the napkin body 3. This folding is performed in the order of the arrow (1) and the arrow (2) shown in FIG. 2 so that the back sheet 5 is located outside the napkin body 3. That is, first, approximately one quarter of the side opposite to the seal tape 25 is folded, and then approximately one third of the side of the seal tape 25 is folded. As a result, as shown in FIG. 1, the end of the packaging sheet 21 on the seal tape 25 side overlaps with the opposite end of the packaging sheet 21 from above, and the napkin body 3 is completely covered with the packaging sheet 21. Become. The overlapping portion of the end portions of the packaging sheet 21 is closed with a seal tape 25.

  And the napkin main body 3 is completely packaged by heat-sealing the part which overlapped the right-and-left both-sides edge part 21a of the packaging sheet 21. FIG. Folding the napkin main body and the packaging sheet in such a form to complete the packaging is the same in the second and third embodiments described later.

[C. (Picture, visual effect)
A large number of patterns 31 are printed on the lower surface of the backsheet 5 in a state of being well balanced throughout. In this embodiment, a shape in which relatively large leaves and vines are designed is selected as the pattern 31 and, for example, color printing is performed in green or orange. The total area of the pattern 31 is about 50% with respect to the area of the back sheet 5. The ratio of the total area of the pattern 31 to the area of the backsheet 5 is adjusted in the range of 10% to 80%. In addition, the pattern 31 is provided including a portion corresponding to the blood drainage port with the sanitary napkin 1 attached, and the pattern 31 is intermittently arranged at intervals in the longitudinal direction of the napkin body 3. By arranging the pattern 31 in this way, the effect of camouflaging menstrual spots is improved. The pattern 31 may be a single color, but it is desirable to use two or more colors because a better effect can be obtained in the aesthetics and the camouflage of menstrual spots.

  As described above, the napkin main body 3 is packaged in the packaging sheet 21 in a state where the napkin body 3 is folded in three so that the back sheet 5 is on the outside, so that the pattern 31 printed on the back sheet 5 is In addition, it can be directly recognized in a state where the packaging by the packaging sheet 21 is unwound, and can also be visually recognized through the packaging sheet 21 and the release films 11 and 15 even in a state before unpacking. That is, the packaging sheet 21 is set to a transparency that allows the pattern 31 to be seen through. In the present embodiment, the haze value of the portion where the packaging sheet 21 and the release films 11 and 15 overlap is set to 90. This haze value is set to 95 or less.

  When the napkin body 3 is seen through the packaging sheet 21 and the release films 11 and 15, the transparency of the packaging sheet 21 is about 60 and the transparency of the release films 11 and 15 is about 59. Since the outer shape of the napkin main body 3 is blurred, there is almost no awareness of the napkin main body 3 in the appearance, and the pattern 3 appears to be blurred. Further, even when menstrual blood spots absorbed by the absorbent body 7 by use appear on the back sheet 5, the spots are camouflaged by the pattern 31.

  In addition, when replacing the napkin during menstruation, it is often performed to wrap the used napkin with a newly unwrapped packaging sheet. In this case as well, the used napkin main body 3 is disposed outside the back sheet 5. When it is folded, it can be discarded with the appearance of menstrual blood spots camouflaged with the pattern 31.

  Table 1 shows the test results for evaluating the appearance of the pattern depending on the color and transparency of the release films 11 and 15. According to this test result, Sample Nos. 1 and 2 using a release film having a haze value of about 59 have obtained the best evaluation “」 ”, and the next best evaluation“ ◯ ”has a haze value of about 89 to 86 Sample Nos. 1 to 7 using the release film were obtained. Sample No. 9 using a release film having a haze value of 95 or higher received the worst evaluation “x”, and Sample No. 8 using a release film having a haze value of 94 or less also had a relatively bad evaluation “Δ”.

[2. Second Embodiment] (FIG. 5)
FIG. 5 shows a sanitary napkin 1A for packaging according to the second embodiment. This packaging sanitary napkin 1A is different from the packaging sanitary napkin 1 mainly in that it does not have a release film, the back sheet has no wings, the pattern provided on the back sheet, and the ratio thereof. Accordingly, the description will be made only on these differences, and the other parts will be denoted by the same reference numerals as those assigned to similar parts in the packaging sanitary napkin 1 or the reference numerals with a dash attached thereto. This avoids duplicate explanations. The use and meaning of such symbols are the same in the third embodiment to be described later.

  In the packaging sanitary napkin 1A, the back sheet 5 is printed on the lower surface in a red or orange color with a design in which a number of relatively small star-like patterns 31 'are scattered. The ratio of the total area of the pattern 31 ′ to the area of the backsheet 5 is approximately 15%. Moreover, as the packaging sheet 21 ', a release nonwoven fabric in which a release agent is coated on one surface of the SMS nonwoven fabric is used, and the release agent enables easy peeling between the adhesive 13 and the packaging sheet 21'. . As a result, there is no release film between the back sheet 5 and the packaging sheet 21 ', and accordingly, the pattern 31' printed on the back sheet 5 is easier to see through the packaging sheet 21 '. However, since the total area of the pattern 31 'is small, the pattern 31' is not overemphasized.

[3. Third Embodiment] (FIG. 6)
FIG. 6 shows a sanitary napkin 1B for packaging according to a third embodiment. The packaging sanitary napkin 1B is different from the packaging sanitary napkin 1A mainly in that the design sheet 41 printed with a desired pattern is printed on the back sheet 5 'and the absorbent body without printing the pattern on the back sheet 5'. It is only that it is sandwiched between 7.

  The design sheet 41 is obtained by color-printing a fine lattice pattern 43 on the entire laminated surface of a polyethylene sheet, and has almost the same size as the absorbent body 7. The design sheet 41 is bonded to the back sheet 5 ′ with the surface on which the pattern 43 is printed superimposed on the upper surface of the back sheet 5 ′, and the absorbent body 7 is bonded to the design sheet 41. That is, the design sheet 41 is provided between the back sheet 5 ′ and the absorber 7. A back sheet 5 'having a haze value of about 90 is used.

  Therefore, the pattern 43 of the design sheet 41 can be seen through almost entirely on the lower surface of the back sheet 5 ′ in a slightly blurred state. Therefore, even when a highly transparent material is used for the design sheet 41, the absorber 7 has absorbed it. The menstrual stain is camouflaged by the pattern 43. Even when the napkin main body 3 'is packaged with the packaging sheet 21', the design 43 of the design sheet 41 can be seen from the outside through the back sheet 5 'and the packaging sheet 21', so that the contents can be seen from the sanitary napkin. It is hardly conscious of that.

  Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. Included in the invention. For example, in the embodiment, when the design is printed on the back sheet, the print surface is the bottom surface. However, in some cases, the print surface is used upward so that the design can be seen through the bottom surface. Also good. The release films 11 and 15 are not limited to plastic ones but may be paper ones. In the above embodiment, the packaging sanitary napkin provided with the release films 11 and 15 is shown. However, the present invention is not limited to this, and may have a configuration without the release film. In this case, only the packaging sheet is used. The pattern provided on the back sheet is viewed through. In such a configuration, the haze value of the single packaging sheet is set to 95 or less.

It is a perspective view which shows the packaging sanitary napkin which concerns on 1st embodiment of this invention in the state before unpacking. It is a perspective view which shows the packaging sanitary napkin shown in FIG. 1 in the state which opened the packaging sheet and turned up one part. It is the perspective view which decomposed | disassembled the packaging sanitary napkin shown in FIG. It is a bottom view of the packaging sanitary napkin shown in FIG. It is a perspective view which shows the packaging sanitary napkin which concerns on 2nd embodiment of this invention in the state which partially unpacked. It is a perspective view which shows the packaging sanitary napkin which concerns on 3rd embodiment of this invention in the state which opened the packaging sheet. It is a disassembled perspective view which shows an example of the conventional packaging sanitary napkin.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Packaging sanitary napkin, 3 ... Napkin main body, 5 ... Back sheet, 7 ... Absorber, 9 ... Top sheet, 11 ... Release film, 13 ... Adhesive material, 15 ... Release film, 17 ... Adhesive material, 21 ... Packaging Sheet, 31 ... pattern, 1A ... packaging sanitary napkin, 3 '... napkin body, 21' ... packaging sheet, 31 '... pattern, 1B ... packaging sanitary napkin, 41 ... design sheet, 43 ... pattern

Claims (3)

A napkin body provided with an absorbent body between a liquid-permeable top sheet and a liquid-impervious back sheet, and a packaging sheet in which the napkin body is folded in a state where the back sheet is outside and individually wrapped. In packaging sanitary napkins,
In the packaging sanitary napkin, comprising a release material interposed between the napkin body and a packaging sheet , printing a pattern on the side of the absorber of the back sheet, the packaging sheet is a nonwoven fabric, and The release material is a transparent material having a haze value of 59.13 to 86.39, and the pattern can be recognized through the back sheet , the packaging sheet, and the release material . napkin. The packaging sanitary napkin according to claim 1, wherein the packaging sheet has a haze value of 95 or less. The packaging sanitary napkin according to any one of claims 1 to 2, wherein the ratio of the total picture area to the area of the back sheet is 10% or more and 80% or less.

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