JP6764450B2 - Packaging of absorbent articles - Google Patents

Description

The present invention relates to a package of an absorbent article in which the absorbent article is provided with a non-woven fabric containing organic cotton fibers.

Patent Document 1 discloses an absorbent article comprising a non-woven fabric containing hydrophobic synthetic fibers and hydrophilic fibers. Hydrophilic fibers are natural cellulose fibers such as cotton and rayon. At least a part of the hydrophilic fibers is aggregated and dispersed in the sheet. At least a part of the hydrophilic fibers constituting the aggregate is fused to the surface of the hydrophobic fibers.

JP-A-2002-651

In recent years, with increasing awareness of protecting the natural environment and increasing awareness of using skin-friendly materials, users are increasing their interest in pesticide-free cultivated naturally derived materials. In particular, there is a growing need to use skin-friendly materials for absorbent items such as disposable diapers used for infants. However, it is difficult for the user to confirm the material of the absorbent article by himself / herself, and it may not be possible to realize a sense of security for the product.

Therefore, a package of an absorbent article that can give a feeling of security to the user is desired.

The package of the absorbent article according to one aspect is a package of the absorbent article having the absorbent article and the packaging bag for packaging the absorbent article, and the packaging bag is made of the organic cotton fiber. It is marked to make the user aware of its use.

The absorbent article according to one embodiment includes a non-woven fabric, the non-woven fabric contains organic cotton fibers, the organic cotton fibers form a plurality of fiber lumps in the non-woven fabric, and the fiber lumps are formed from the outside. It is visibly configured, and the light transmittance of the portion of the fiber mass in the nonwoven fabric is lower than the light transmittance of the portion of the nonwoven fabric in which the fiber mass does not exist.

The package of the absorbent article according to one embodiment is a package of the absorbent article having the above-mentioned absorbent article and a packaging bag for packaging the absorbent article, and the organic cotton is put in the packaging bag. It is marked to make the user aware of the use of fiber.

FIG. 1 is a plan view of the absorbent article according to the embodiment. FIG. 2 is a plan view of the absorbent article as viewed from the opposite side of FIG. FIG. 3 is a schematic view showing a cross section of a non-woven fabric constituting the absorbent article. FIG. 4 is a schematic view showing a cross section of the absorbent article according to the embodiment. FIG. 5 is a diagram showing a package of an absorbent article according to an embodiment.

The description of this specification and the accompanying drawings will clarify at least the following matters.

An absorbent article with a non-woven fabric
The non-woven fabric contains organic cotton fibers and contains
The organic cotton fiber forms a plurality of fiber lumps in the non-woven fabric.
The fiber mass is configured to be visible from the outside.
An absorbent article in which the light transmittance of the portion of the fiber mass in the nonwoven fabric is lower than the light transmittance of the portion of the nonwoven fabric in which the fiber mass does not exist.

Since the light transmittance of the portion of the fiber mass made of organic cotton fibers is lower than the light transmittance of the portion around it, the user can easily see the fiber mass from the outside. As a result, the user can realize that the organic cotton fiber is used, and can obtain a greater sense of security for the product.

According to a preferred embodiment, the plurality of fiber lumps are provided unevenly on the surface side of the absorbent article in the thickness direction of the absorbent article. Since the fiber lumps are provided unevenly on the surface side of the absorbent article, the user can more easily see the fiber lumps from the outside.

According to a preferred embodiment, the absorbent article has a colored sheet that overlaps the nonwoven fabric, and the colored sheet is provided inside the nonwoven fabric in the thickness direction of the absorbent article. Since the colored sheet is provided inside the non-woven fabric, the white fiber mass can be made more conspicuous from the outside. This allows the user to more easily see the fiber mass from the outside.

According to a preferred embodiment, the fiber density of the fiber mass is 0.075 to 0.2 g / cm ³ . By increasing the fiber density of the fiber mass, the fiber mass can be made more conspicuous. This allows the user to more easily see the fiber mass from the outside.

According to a preferred embodiment, the non-woven fabric further contains synthetic fibers, and a region having a density lower than the density of the fiber mass and the synthetic fiber is formed around the fiber mass. Since there is a low density region around the fiber mass, the fiber mass can be made more conspicuous. This allows the user to more easily see the fiber mass from the outside.

According to a preferred embodiment, the non-woven fabric comprises synthetic fibers, and the organic cotton fibers have an average fiber length shorter than the average fiber length of the synthetic fibers. By increasing the average fiber length of the synthetic fiber 12, the strength of the non-woven fabric and the absorbent article as a whole can be improved, and fluffing of the fiber during production and use can be suppressed. On the other hand, by shortening the average fiber length of the organic cotton fiber 10, the heat fusion points between the synthetic fibers 12 can be reduced, and appropriate flexibility as a non-woven fabric and an absorbent article can be realized.

According to a preferred embodiment, the organic cotton fibers are not heat fused to the synthetic fibers. Since the fiber mass made of organic cotton fibers is not heat-sealed to the synthetic fiber, the boundary between the fiber mass and the synthetic fiber becomes more noticeable. This allows the user to more easily see the fiber mass from the outside.

According to a preferred embodiment, the packaging body of the absorbent article having the absorbent article of the above aspect and the packaging bag for packaging the absorbent article, wherein the organic cotton fiber is used in the packaging bag. A mark is attached to make the user recognize it.

Even when the absorbent article is wrapped, the packaging bag is marked to make the user aware of the use of organic cotton fiber, so the user is clearly informed that he / she is using organic cotton fiber. be able to. As a result, it is possible to give the user a sense of security that it is gentle on the skin.

According to one aspect, the absorbent article is marked to make the user aware of the use of the organic cotton fibers.

Even when the absorbent article is taken out of the packaging bag, the absorbent article is marked to make the user aware of the use of organic cotton fiber, so it is clear to the user that the organic cotton fiber is used. Can be informed. As a result, it is possible to give the user a sense of security that it is gentle on the skin.

Hereinafter, the details of the absorbent article according to the embodiment will be described with reference to the drawings. The absorbent articles of the present invention are, for example, disposable diapers and sanitary napkins. In the following embodiment, a disposable diaper will be described in detail by taking as an example.

In the description of the drawings below, the same or similar parts are designated by the same or similar reference numerals. However, it should be noted that the drawings are schematic and the ratio of each dimension may differ from the actual one. Therefore, the specific dimensions, etc. should be determined in consideration of the following explanation. In addition, there may be parts in which the relationship and ratio of dimensions of the drawings are different from each other.

FIG. 1 is a plan view of the absorbent article 1 according to the embodiment. FIG. 2 is a plan view of the absorbent article 1 as viewed from the side opposite to that of FIG. The absorbent article 1 has a longitudinal direction L and a width direction W. The longitudinal direction L is a direction extending from the front side (ventral side) of the wearer to the rear side (dorsal side), or a direction extending from the rear side to the front side of the wearer. The width direction W is a direction orthogonal to the longitudinal direction L. Hereinafter, the side facing the skin of the wearer at the time of use may be referred to as "skin side". In addition, the side that is turned away from the wearer's skin during use may be referred to as the "non-skin side".

The absorbent article 1 has a front surface sheet 3, a back surface sheet 4, and an absorber 7. The absorber 7 is provided between the front surface sheet 3 and the back surface sheet 4. The surface sheet 3 may be composed of a liquid permeable sheet.

A liquid-impermeable leak-proof sheet 5 may be provided between the back surface sheet 4 and the absorber 7. The leak-proof sheet 5 covers at least the absorber 7. The back surface sheet 4 covers the leak-proof sheet 5 and extends to the outside of the leak-proof sheet 5. The region of the back surface sheet 4 that does not overlap with the leak-proof sheet 5 extends from the front end to the rear end in the longitudinal direction L on both outer sides in the width direction W.

The front surface sheet 3 and the back surface sheet 4 are made of a non-woven fabric. FIG. 3 is a schematic view showing a cross section of the front surface sheet 3 or the back surface sheet 4. This non-woven fabric contains 10 organic cotton fibers and 12 synthetic fibers. Here, "organic cotton" means cotton whose organicity is certified based on international standards (standards of each country according to CODEX) at the agricultural stage.

The synthetic fiber 12 may be a fiber made of a thermoplastic resin. Examples of the fiber made of a thermoplastic resin include an olefin resin, a polyester resin, a polyamide resin, and any combination thereof. The fiber made of a thermoplastic resin may be hydrophilized by a hydrophilizing agent.

The fineness of the synthetic fiber 12 is not particularly limited, but is in the range of 1.1 to 8.8 dtex, preferably 1.5 to 4.6 dtex, from the viewpoint of strength, flexibility, touch, liquid permeability, etc. of the non-woven fabric. Is preferable.

Further, a synthetic fiber containing a fiber having a fineness of less than 2.0 dtex, preferably 10 to 40%, more preferably 20 to 30%, may be used as a fiber having a fineness of 2.0 dtex or more. In this case, synthetic fibers having a short fiber length can be included while keeping the average fiber length long. When the synthetic fiber 12 contains a fine-count fiber, it is possible to further prevent the fiber mass of the cotton fiber from falling off from the non-woven fabric.

The organic cotton fiber 10 forms a plurality of fiber lumps 11 in the non-woven fabric. The organic cotton fiber 10 may have an average fiber length shorter than that of the synthetic fiber 12. This makes it easier for the organic cotton fiber 10 to form a fiber mass 11 in the non-woven fabric.

The fiber mass 11 made of the organic cotton fiber 10 is configured to be visible from the outside. The light transmittance of the portion of the fiber mass 11 in the nonwoven fabric is lower than the light transmittance of the portion of the nonwoven fabric in which the fiber mass 11 does not exist. In addition, in this specification, a light transmittance means a visible light transmittance.

Since the light transmittance of the portion of the fiber mass 11 made of the organic cotton fiber 10 is lower than the light transmittance of the portion around the fiber mass 11, the user can easily see the fiber mass 11 from the outside. As a result, the user can realize that the organic cotton fiber 10 is used, and can obtain a greater sense of security for the product.

By shining light on the non-woven fabric and visually checking it, the portion of the fiber mass 11 made of the organic cotton fiber 10 looks whiter than the surrounding area, so that the light transmittance of the portion of the fiber mass 11 and its surroundings It is possible to confirm the difference from the light transmittance of the part of.

As shown in FIG. 3, it is preferable that the plurality of fiber lumps 11 are provided unevenly on the surface side of the absorbent article 1 in the thickness direction of the absorbent article 1. Here, the absorbent article 1 is divided into two equal layers on the surface side and the central layer in the thickness direction, and 60% or more, preferably 70% or more of the fiber lumps 11 among the plurality of fiber lumps 11 are on the surface side. When present in the (outer side) layer, it is assumed that the plurality of fiber lumps 11 are provided unevenly on the surface side of the absorbent article 1. Further, the fact that the fiber mass is present in the surface side (outer side) layer means that a part of the fiber mass is present in the surface side (outer side) layer.

Since the plurality of fiber lumps 11 are provided unevenly on the surface side of the absorbent article 1, the user can more easily see the fiber lumps from the outside. From the viewpoint of preventing the fiber mass 11 from falling off from the non-woven fabric, it is preferable that the fiber mass 11 is not exposed on the surface of the non-woven fabric.

X-ray CT can be used to confirm the bias of the fiber mass 11 in the thickness direction. Specifically, for the non-woven fabric including the portion of the fiber mass 11 to be measured, X-ray CT (for example, FLEX-M863 manufactured by Beamsense Co., Ltd.) so that one surface of the non-woven fabric is photographed from the other surface. Taken by. By confirming 10 fiber lumps 11 in the same non-woven fabric using the image obtained by photographing, the bias of the fiber lumps 11 can be determined. It should be noted that it can be confirmed whether or not the fiber mass 11 in the sample after photographing is the fiber mass 11 of the organic cotton fiber by using the dyeing method using Kayastain Q described later.

The non-woven fabric generally preferably has a basis weight in the range of 10 to 60 g / cm ² . The thickness of the non-woven fabric is preferably 0.5 to 5.0 mm, more preferably 0.8 to 3.5 mm. The thickness of the non-woven fabric can be measured using a thickness gauge (Peacock dial thickness gauge manufactured by Ozaki Seisakusho Co., Ltd.) having a measuring terminal having a measuring pressure of 3 g / cm ² and a diameter of 10 mm. Specifically, the thicknesses of 10 different points of the non-woven fabric of interest are measured, and the "thickness" is obtained from the average value.

In the non-woven fabric having the above thickness, it is preferable that the weight ratio of the organic cotton fiber to the synthetic fiber is smaller than 25%. Under this condition, by unevenly providing the fiber mass 11 in the center of the non-woven fabric in the thickness direction, it is possible to further suppress the falling off of the organic cotton fiber during the manufacturing process and the product use.

The weight ratio of the organic cotton fiber to the synthetic fiber can be calculated by the following method. First, a test piece having a unit area (for example, 5 cm × 5 cm) is taken out from the non-woven fabric. Organic cotton fibers are taken out from this test piece, and the weight of the taken out organic cotton fibers is measured. This makes it possible to calculate the weight ratio of organic cotton fibers to synthetic fibers.

In addition, when taking out the organic cotton fiber from the test piece, it is necessary to discriminate the difference between the synthetic fiber and the organic cotton fiber. Whether the fibers in the non-woven fabric are made of organic cotton fibers or synthetic fibers can be confirmed by the following method. First, the same amount of Kayastain Q (manufactured by Nippon Kayaku Co., Ltd.) as the test piece is weighed and dissolved in ion-exchanged water (60 to 70 degrees) having a weight 100 times that of Kayastain Q. The solution is heated, and just before the solution boils, a test piece washed with a neutral detergent is put into the solution. Then, the solution was boiled for 5 minutes, and then the test piece was immediately washed with water and dried. At this point, the fiber mass is dyed in a color corresponding to the type of fiber. After that, the fiber mass can be discriminated based on the hue of Kayastain Q to various fibers.

The organic cotton fiber 10 contained in the non-woven fabric preferably has an average fiber length shorter than the average fiber length of the synthetic fiber 12 and / or a fineness finer than the fineness of the synthetic fiber 12. By increasing the average fiber length of the synthetic fiber 12 and / or increasing the fineness of the synthetic fiber 12, the strength of the entire non-woven fabric can be improved, and the fluffing of the fiber during production and use can be suppressed. Can be done. On the other hand, by shortening the average fiber length of the organic cotton fiber 10 and / or reducing the fineness of the organic cotton fiber 10, the heat fusion points between the synthetic fibers 12 are reduced, and appropriate flexibility as a non-woven fabric is realized. it can.

The "average fiber length" is defined as "A7.1.1 Method A (standard method)" of "A7.1 Fiber Length Measurement" in Annex A of JIS L 1015: 2010. Individual fibers on a graduated glass plate. The average fiber length measured according to "Method for measuring the length of the fiber". The above method corresponds to a test method equivalent to ISO 6989 published in 1981.

FIG. 3 shows a cross section of a single-layer non-woven fabric constituting the front surface sheet 3 or the back surface sheet 4. Instead, the front surface sheet 3 or the back surface sheet 4 may have a multi-layer structure in which a plurality of non-woven fabrics are superposed.

FIG. 4 shows a cross section of a portion of the absorbent article (eg, line F3-F3 in FIG. 1). The absorbent article 1 preferably has a colored sheet 300 that overlaps the non-woven fabric that constitutes the front surface sheet 3 and / or the back surface sheet 4. The colored sheet 300 is provided inside the non-woven fabric constituting the front surface sheet 3 and / or the back surface sheet 4 in the thickness direction of the absorbent article 1. Since the colored sheet 300 is provided inside the non-woven fabric containing the organic cotton fiber 10, the white fiber mass 11 can be made more conspicuous. As a result, the user can more easily visually recognize the fiber mass 11 from the outside.

The fiber density of the fiber mass 11 made of the organic cotton fiber 10 is preferably 0.075 to 0.2 g / cm ³ . By increasing the fiber density of the fiber mass 11, the fiber mass 11 can be made more conspicuous. As a result, the user can more easily visually recognize the fiber mass 11 from the outside.

Further, from the viewpoint of making the fiber mass 11 stand out, the fiber density of the fiber mass 11 is preferably 0.02 g / cm ³ or more higher than the fiber density of the synthetic fiber 12.

As shown in FIGS. 3 and 4, it is preferable that a region 15 having a density lower than that of the fiber mass 11 and the synthetic fiber 12 is formed around the fiber mass 11. Since the low-density region 15 exists around the fiber mass 11, the fiber mass 11 can be made more conspicuous. As a result, the user can more easily visually recognize the fiber mass 11 from the outside.

Preferably, the organic cotton fiber 10 is not heat fused to the synthetic fiber 12. Since the fiber mass 11 made of the organic cotton fiber 10 is not heat-sealed to the synthetic fiber 12, the boundary between the fiber mass 11 and the synthetic fiber 12 becomes more conspicuous. As a result, the user can more easily visually recognize the fiber mass 11 from the outside.

Whether the fiber mass 11 in the non-woven fabric is made of organic cotton fibers or synthetic fibers can be determined by the method using Kayastain Q described above.

FIG. 5 is a diagram showing a package of an absorbent article according to an embodiment. The packaging body includes an absorbent article 1 provided with a non-woven fabric and a packaging bag 100 for packaging the absorbent article 1. The structure of the absorbent article 1 is as described above.

The packaging bag 100 accommodates a plurality of absorbent articles 1. The packaging bag 100 is marked with a mark 82 that makes the user aware of the use of the organic cotton fiber 10. Further, it is preferable that the absorbent article 1 also has a mark 84 that makes the user recognize the use of the organic cotton fiber 10. The mark 84 attached to the absorbent article 1 is a mark that gives the user the same recognition as the mark 82 attached to the packaging bag 100. Specifically, the mark 84 attached to the absorbent article 1 may be the same or similar to the mark 82 attached to the packaging bag 100. If the user can recognize the use of the organic cotton fiber 10, the mark 84 attached to the absorbent article 1 may be different from the mark 82 attached to the packaging bag 100.

The marks 82,84 may be marks certified by an external agency certifying the use of organic cotton. In this case, the reliability of using organic cotton can be improved, and a higher sense of security can be given to the user.

In FIGS. 2 and 5, both the absorbent article 1 and the packaging bag 100 are marked with exactly the same marks 82 and 84. Instead, the mark 82 attached to the absorbent article 1 may not be exactly the same as the mark 84 attached to the packaging bag 80, but may be similar. Even in this case, the user can be made aware of the use of organic cotton fibers.

As a result, when the absorbent article 1 is wrapped in the packaging bag 100, the mark 82 attached to the packaging bag 100 allows the user to recognize the use of the organic cotton fiber. Further, even when the absorbent article 1 is taken out from the packaging bag 100, the mark 84 attached to the absorbent article 1 can explicitly inform the user that the organic cotton fiber is used. Therefore, it is possible to give the user a sense of security that it is gentle on the skin.

The plurality of absorbent articles 1 may be individually packaged in the packaging bag 100. In this case, the packaging material for individually packaging the absorbent article 1 may be marked to make the user aware of the use of organic cotton fibers.

Although the present invention has been described in detail using the above-described embodiments, it is clear to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and modifications without departing from the gist and scope of the present invention determined by the description of the claims. Therefore, the description of the present specification is for the purpose of exemplification and does not have any limiting meaning to the present invention.

1 Absorbent article 3 Front sheet 4 Back sheet 7 Absorbent 10 Organic cotton fiber 11 Fiber mass 12 Synthetic fiber 82 Mark 84 Mark 100 Packaging bag 300 Colored sheet

Claims (4)

A package of an absorbent article having an absorbent article and a packaging bag for packaging the absorbent article.
The packaging bag is marked with a mark that makes the user aware of the use of organic cotton fibers .
The absorbent article has a non-woven fabric and
The non-woven fabric contains the organic cotton fiber and contains.
The organic cotton fiber forms a plurality of fiber lumps in the non-woven fabric.
The fiber mass is configured to be visible from the outside.
The light transmittance of the portion of the fiber mass in the nonwoven fabric is lower than the light transmittance of the portion of the nonwoven fabric in which the fiber mass does not exist.
The non-woven fabric further contains synthetic fibers
A package of an absorbent article in which a region having a density lower than that of the fiber mass and the synthetic fiber is formed around the fiber mass . The package of the absorbent article according to claim 1, wherein the absorbent article is marked to make the user aware of the use of the organic cotton fiber. The package of the absorbent article according to claim 1 or 2 , wherein the plurality of fiber lumps are provided unevenly on the surface side of the absorbent article in the thickness direction of the absorbent article. The package of an absorbent article according to any one of claims 1 to 3, wherein the organic cotton fiber is not heat-sealed to the synthetic fiber.

Images