JP2022016119A - Method for manufacturing individual package and individual package - Google Patents

Abstract

To provide a method for manufacturing an individual package configured to be easily attached to a body of a wearer, capable of suppressing leakage and deterioration in a feeling of safety and aesthetic appearance.SOLUTION: A method for manufacturing an individual package comprises; a preparation step of preparing an absorbent article 1 that comprises an absorber 4 including a plurality of high rigidity parts HB1 and HB2 aligned in the longitudinal direction and low rigidity parts LBW1 provided respectively adjacent to the mutually-adjacent high rigidity parts and extending in a width direction, and on which a clothes fixing part 7 and a release sheet 20; an arrangement step of forming a body fixing part 23 at a position overlapped in a thickness direction with at least a part of the low rigidity parts of the absorber, out of a surface in a non-absorbent article side, of the release sheet and arranging an individual package sheet 40 on a surface in a non-absorbent article side, of the body fixing part; and a folding step of folding the absorbent article, along with the individual package sheet, at positions of fold parts FW located in the high rigidity parts in the longitudinal direction and extending in a belt-like shape along the width direction in plan view.SELECTED DRAWING: Figure 1

Description

The present invention relates to a method for manufacturing an individual package for storing an absorbent article and an individual package for storing an absorbent article.

Absorbent articles that easily adhere to the wearer's body are known. In such an absorbent article, a low-rigidity portion having a relatively low rigidity is provided in the middle portion of the absorber in the longitudinal direction, and the low-rigidity portion makes it easy to bend the absorber. Makes it easier for absorbent articles to come into close contact with the wearer's body. It should be noted that there are relatively high-rigidity high-rigidity portions on both sides of the low-rigidity portion in the longitudinal direction.

For example, Patent Document 1 discloses an absorbent article that can be kept in close contact with the body even during the movement of the wearer. The absorbent article has a first curved portion extending in the width direction behind the discharge port contact area, a second curved portion extending in the width direction behind the first curved portion, and a first region adjacent to the front of the first curved portion. , A second region adjacent to the rear of the second curved portion, and a first intermediate region located between the first curved portion and the second curved portion. The first curved portion and the second curved portion are configured so that the absorbent article bends in the thickness direction. The basis weight of the absorbent material in the first intermediate region is lower than the basis weight of the absorbent material in the first region and the second region. Therefore, in this case, of the first region, the first intermediate region, and the second region arranged in the longitudinal direction, the first intermediate region is the low-rigidity portion, and the first region and the second region are the high-rigidity portions. Is.

JP-A-2017-209521

In the absorbent article of Patent Document 1, for example, folds extending in a band shape along the width direction are set at intervals in the longitudinal direction. Then, at the position of the folded portion, the absorbent article is folded together with the individual packaging sheet to form an individual packaging body. At this time, it is conceivable to provide the folded portion at the position of the low-rigidity portion in the absorber in a plan view. When the absorbent article is folded at the position of the folded portion, the low-rigidity portion is relatively easily deformed, so that the low-rigidity portion and the corresponding surface sheet have a crease. In that case, when the individual package is opened and the absorbent article is attached, the wrinkles of the absorbent body and the surface sheet reduce the fit of the absorbent article to the skin surface, and the surface sheet cannot sufficiently contact the skin surface. Will occur. As a result, in the absorbent article, there is a possibility that the bodily fluid may leak to the outside of the absorbent article along the skin surface.

Therefore, it is conceivable to provide the folded portion at the position of the high-rigidity portion adjacent to the low-rigidity portion instead of the low-rigidity portion in the absorber in a plan view. At the position of the fold, when the absorbent article is folded with the skin side part inside, the absorbent article has a certain thickness, so the outer non-skin side part is stretched outward in the longitudinal direction. The force that works. However, since the absorbent article hardly extends in the longitudinal direction, the absorbent article is stressed inward in the longitudinal direction. Then, due to the stress, the low-rigidity portion, which is relatively easily deformed during manufacturing or storage, is deformed so as to be crushed or contracted in the longitudinal direction (hereinafter, also simply referred to as “contracting”). There is a risk of being affected. In that case, the portion of the absorbent article corresponding to the low-rigidity portion is contracted in the longitudinal direction, and the low-rigidity portion and the corresponding surface sheet may be wrinkled due to shrinkage (eg, wrinkles in the width direction). .. In that case, when the individual package is opened and the absorbent article is attached, the wrinkles of the absorbent body and the surface sheet reduce the fit of the absorbent article to the skin surface, and the surface sheet cannot sufficiently contact the skin surface. There is a risk of leakage from the location. Further, these wrinkles may reduce the sense of security and aesthetics of the absorbent article. This is the case when the first region, the first intermediate region, and the second region are arranged in the width direction, and the folded portions extend in a strip shape along the longitudinal direction and are set at intervals in the longitudinal direction. Can occur as well.

An object of the present invention is to provide an individual package of an absorbent article, which can maintain the ease of adhesion to the wearer's body, suppress leakage, and suppress deterioration of security and aesthetics. The present invention is to provide a method of manufacturing and an individual package.

The method for manufacturing the individual package according to the present invention is as follows. (1) The absorbent article, the clothing fixing portion formed on the clothing-side surface of the absorbent article, the release sheet arranged on the non-absorbent article-side surface of the clothing fixing portion, and the release sheet. A method for manufacturing an individual wrapping body including a main body fixing portion formed on a surface on the non-absorbent article side and an individual wrapping sheet arranged on the surface on the non-absorbent article side of the main body fixing portion. The absorbent article has a longitudinal direction, a width direction and a thickness direction, and includes a front surface sheet, a back surface sheet, and an absorber located between the front surface sheet and the back surface sheet, and the absorption. The body is adjacent to each of the plurality of high-rigidity portions arranged in the first direction, which is one of the longitudinal direction and the width direction, and the adjacent high-rigidity portions, and is in the longitudinal direction and the width direction. On the other hand, a low-rigidity portion extending in a second direction is included, and the method is a preparatory step for preparing the absorbent article, and the surface of the absorbent article on the non-absorbent article side is said. In the preparatory step in which the clothing fixing portion is formed and the release sheet is arranged on the surface of the clothing fixing portion on the non-absorbent article side, the release sheet is non-absorbent in the prepared absorbent article. The main body fixing portion is formed at a position where at least a part of the low rigidity portion of the surface on the article side overlaps in the thickness direction, and the individual is formed on the surface of the main body fixing portion on the non-absorbent article side. In the arrangement step of arranging the packaging sheet and in the plan view, the absorbent article is placed at the position of the folded portion located in the high rigidity portion in the first direction and extending in a strip shape along the second direction. A method comprising a folding process of folding with a wrapping sheet.

The individual package according to the present invention is as follows. (2) The absorbent article, the clothing fixing portion formed on the surface of the absorbent article on the non-absorbent article side, the release sheet arranged on the surface of the clothing fixing portion on the non-absorbent article side, and the above. An individual wrapping body comprising a main body fixing portion formed on the surface of the release sheet on the non-absorbent article side and an individual wrapping sheet arranged on the surface of the main body fixing portion on the non-absorbent article side. The absorbent article has a longitudinal direction, a width direction and a thickness direction, and includes a front surface sheet, a back surface sheet, and an absorber located between the front surface sheet and the back surface sheet, and the absorber is provided. , A plurality of high-rigidity portions arranged in the first direction, which is one of the longitudinal direction and the width direction, and adjacent to each of the adjacent high-rigidity portions, in the other of the longitudinal direction and the width direction. The main body fixing portion includes a low-rigidity portion extending in a second direction, and at least a part of the low-rigidity portion of the surface of the release sheet on the non-absorbent article side is in the thickness direction. The individual package is formed at a position overlapping with the above, and the individual package has a folded portion that is located at the high rigidity portion in the first direction and extends along the second direction in a plan view. An individual package having a configuration in which the absorbent article is folded together with the individual package sheet at the position of the folded portion.

According to the present invention, an individual package capable of suppressing leakage from the absorbent article while maintaining the ease of adhesion to the wearer's body and suppressing deterioration of a sense of security and aesthetics can be provided. A method of manufacturing and an individual package can be provided.

It is a top view which shows the structural example of the individual package | body which concerns on embodiment. It is sectional drawing which follows the II-II line of FIG. FIG. 3 is a cross-sectional view taken along the line III-III of FIG. It is a top view which shows the structural example of the absorbent body of the absorbent article in the individual package | body which concerns on embodiment. It is a bottom view which shows the structural example of the individual package | body which concerns on embodiment. It is a schematic diagram which shows the relationship between the main body fixing part and the low-rigidity part which concerns on embodiment. It is a top view which shows an example of the intermediate process of the manufacturing method of the individual package | body which concerns on embodiment. It is a top view which shows an example of the individual package body completed by the manufacturing method of the individual package body which concerns on embodiment. It is a schematic diagram which shows the relationship between the main body fixing part and the low-rigidity part which concerns on other embodiment.

The present embodiment relates to the following aspects.
[Aspect 1]
The absorbent article, the clothing fixing portion formed on the clothing-side surface of the absorbent article, the release sheet arranged on the non-absorbent article-side surface of the clothing fixing portion, and the non-absorbent property of the release sheet. A method for manufacturing an individual wrapping body including a main body fixing portion formed on a surface on the article side and an individual wrapping sheet arranged on the non-absorbent article side surface of the main body fixing portion. The sex article has a longitudinal direction, a width direction, and a thickness direction, and includes a front surface sheet, a back surface sheet, and an absorber located between the front surface sheet and the back surface sheet, and the absorber is. A plurality of high-rigidity portions arranged in the first direction, which is one of the longitudinal direction and the width direction, and the other of the longitudinal direction and the width direction adjacent to each of the adjacent high-rigidity portions. A low-rigidity portion extending in a second direction is included, and the method is a preparatory step for preparing the absorbent article, and the clothing fixing portion is on the surface of the absorbent article on the non-absorbent article side. Is formed, and the release sheet is arranged on the surface of the clothes fixing portion on the non-absorbent article side. The main body fixing portion is formed at a position where at least a part of the low rigidity portion of the surface overlaps in the thickness direction, and the individual packaging sheet is placed on the surface of the main body fixing portion on the non-absorbent article side. The absorbent article is placed together with the individual wrapping sheet at the position of the fold portion which is located in the high rigidity portion in the first direction and extends in a band shape along the second direction in the arrangement step of arranging and the plan view. A method of providing a folding process and a folding process.

In this method, in the absorbent article in which the clothing fixing portion and the release sheet are provided in this order on the surface on the non-absorbent article side in the arranging step, the lower of the surfaces on the non-absorbent article side of the release sheet. The main body fixing portion is formed at a position where at least a part of the rigid portion overlaps in the thickness direction. The main body fixing portion can reinforce the portion corresponding to the low rigidity portion of the absorbent article via the clothing fixing portion and the release sheet, and the rigidity thereof can be increased. Therefore, in the folding step, even if the absorbent article is folded together with the individual packaging sheet at the position of the folded portion located in the high-rigidity portion, the portion corresponding to the low-rigidity portion of the absorbent article is in the first direction (example:: It is possible to prevent the product from being crushed or contracted (hereinafter, also simply referred to as “contracting”) in the longitudinal direction. Therefore, it is possible to prevent wrinkles (eg, wrinkles in the width direction) due to shrinkage in the low-rigidity portion of the absorber and the corresponding surface sheet during the production of the individual package. That is, it is possible to manufacture an individual package that can suppress leakage while maintaining the ease of adhesion to the wearer's body, and can suppress a sense of security and deterioration of aesthetics.

[Aspect 2]
In the arrangement step, the thickness of the main body fixing portion is a region of the surface of the release sheet on the non-absorbent article side that straddles the low-rigidity portion and the high-rigidity portion adjacent to the low-rigidity portion. The method according to aspect 1, wherein the method is formed at a position overlapping in the direction.
In this method, the main body fixing portion is formed at a position where the region of the surface of the release sheet on the non-absorbent article side that straddles the low-rigidity portion and the high-rigidity portion adjacent to the low-rigidity portion overlaps in the thickness direction. Will be done. The main body fixing portion can further reinforce the portion corresponding to the low rigidity portion in the absorbent article, and the rigidity can be further increased. As a result, even if the absorbent article is folded together with the individual packaging sheet at the position of the folded portion located in the high-rigidity portion in the folding step, the portion corresponding to the low-rigidity portion of the absorbent article is in the first direction (example: longitudinal). It is possible to further suppress the contraction in the direction). Therefore, it is possible to further suppress the occurrence of wrinkles due to shrinkage in the low-rigidity portion of the absorber and the corresponding surface sheet during the manufacture of the individual package.

[Aspect 3]
In the arranging step, the main body fixing portion has two high-rigidity portions adjacent to both sides of the low-rigidity portion and the low-rigidity portion in the first direction of the surface of the release sheet on the non-absorbent article side. The method according to aspect 1 or 2, wherein the region straddling the portion is formed at a position where the region overlaps with the portion in the thickness direction.
In this method, the main body fixing portion has two high-rigidity portions adjacent to both sides of the low-rigidity portion and the low-rigidity portion in the first direction (example: longitudinal direction) of the surface of the release sheet on the non-absorbent article side. The region straddling the portion is formed at a position where it overlaps in the thickness direction. The main body fixing portion can further reinforce the portion corresponding to the low rigidity portion in the absorbent article, and the rigidity can be further increased. As a result, in the folding step, even if the absorbent article is folded together with the individual packaging sheet at the position of the folded portion located in the high-rigidity portion, the portion corresponding to the low-rigidity portion of the absorbent article shrinks in the first direction. Can be further suppressed. Therefore, it is possible to further suppress the occurrence of wrinkles due to shrinkage in the low-rigidity portion of the absorber and the corresponding surface sheet during the manufacture of the individual package.

[Aspect 4]
In the plan view, the folding step is located at each of the two high-rigidity portions adjacent to both sides of the low-rigidity portion in the longitudinal direction, and each of at least two folding portions extending along the width direction. The method according to any one of aspects 1 to 3, comprising a step of folding the absorbent article together with the individual packaging sheet at the position of.
In this method, in the folding step, the absorbent article is individually located at each of the two high-rigidity portions adjacent to each other on both sides of the low-rigidity portion, and at each position of at least two folded portions extending along the width direction. Folds with the packaging sheet. Here, the main body fixing portion is formed at a position where at least a part of the low rigidity portion of the surface of the release sheet on the non-absorbent article side overlaps in the thickness direction. That is, the main body fixing portion reinforces the portion corresponding to the low rigidity portion in the absorbent article, and the rigidity thereof is increased. Therefore, when folded, the portion corresponding to the low-rigidity portion of the absorbent article can be prevented from shrinking in the first direction (eg, longitudinal direction). Therefore, it is possible to prevent the low-rigidity portion of the absorber and the corresponding surface sheet from being wrinkled due to shrinkage during the manufacture of the individual package.

[Aspect 5]
The method according to any one of aspects 1 to 4, wherein in the arrangement step, the main body fixing portion is formed at a position partially overlapping the region without the clothing fixing portion in a plan view.
In this method, the main body fixing portion is formed at a position where the main body fixing portion partially overlaps the region without the clothing fixing portion in a plan view. That is, the main body fixing portion is formed in a portion corresponding to a portion without a clothing fixing portion, which may have a lower rigidity than a portion having a higher rigidity due to the presence of the clothing fixing portion. Therefore, when folded, it is possible to prevent the portion of the absorbent article corresponding to the less rigid portion from shrinking in the first direction (eg, longitudinal direction). Therefore, when the individual package is manufactured, it is possible to prevent wrinkles due to shrinkage from occurring in the low-rigidity portion including the low-rigidity portion of the absorber and the corresponding surface sheet.

[Aspect 6]
The method according to any one of aspects 1 to 5, wherein the length of the low-rigidity portion in the first direction is larger than the length of the high-rigidity portion in the thickness direction.
In this method, the length of the low-rigidity portion in the first direction is larger than the length of the high-rigidity portion in the thickness direction. Thereby, the absorbent article can be easily brought into close contact with the wearer's body. However, since the length of the low-rigidity portion in the first direction is relatively long, it is low when the absorbent article is folded in the first direction together with the individual packaging sheet at the position of the folded portion extending in a strip shape along the second direction. It becomes difficult for the high-rigidity portions adjacent to each other across the rigid portion to collide with each other in the first direction. As a result, the low-rigidity portion and the corresponding surface sheet may be wrinkled due to shrinkage. However, in this method, as described above, the main body fixing portion can reinforce the portion corresponding to the low rigidity portion of the absorbent article, and the rigidity can be increased. Therefore, when folded, it is possible to prevent the portion of the absorbent article corresponding to the low-rigidity portion from shrinking in the longitudinal direction and eventually wrinkling.

[Aspect 7]
The method according to any one of aspects 1 to 6, wherein the first direction is the longitudinal direction and the second direction is the width direction.
In an absorbent article that easily adheres to the wearer's body, a low-rigidity portion having relatively low rigidity is provided in the middle portion of the absorber in the longitudinal direction, and the low-rigidity portion makes it easy to bend the absorber. It makes it easier for the absorber, and thus the absorbent article, to come into close contact with the wearer's body. In that case, when the absorbent article is folded together with the individually wrapped sheet at the position of the folded portion extending in a strip shape along the width direction, the low-rigidity portion and the corresponding surface sheet may be wrinkled due to shrinkage. Therefore, in this method, the first direction is the longitudinal direction and the second direction is the width direction. Therefore, as described above, the main body fixing portion can reinforce the portion corresponding to the low rigidity portion of the absorbent article, and the rigidity can be increased. Therefore, when folded, it is possible to prevent the portion of the absorbent article corresponding to the low-rigidity portion from shrinking in the longitudinal direction and eventually wrinkling.

[Aspect 8]
The absorbent article further includes a pair of wing portions extending on both sides in the width direction, and in the arrangement step, the main body fixing portion is viewed from the position of the pair of wing portions in the longitudinal direction. The method according to aspect 7, wherein the method is also formed on the posterior side.
In this method, the main body fixing portion is formed behind the position of the pair of wing portions in the longitudinal direction in a plan view. That is, the main body fixing portion is arranged on the rear side in the longitudinal direction where the rigidity may be lower than the portion where the rigidity is increased due to the presence of the pair of wing portions. Therefore, when folded, it is possible to prevent the portion of the absorbent article corresponding to the low-rigidity portion including the low-rigidity portion from shrinking in the longitudinal direction. Therefore, it is possible to suppress the occurrence of wrinkles due to shrinkage in the low-rigidity portion including the low-rigidity portion of the absorber and the corresponding surface sheet.

[Aspect 9]
The absorbent article, the clothing fixing portion formed on the surface of the absorbent article on the non-absorbent article side, the release sheet arranged on the surface of the clothing fixing portion on the non-absorbent article side, and the release sheet. An individual package including a main body fixing portion formed on the surface of the non-absorbent article side and an individual packaging sheet arranged on the surface of the main body fixing portion on the non-absorbent article side, wherein the absorbent article is provided. Has a longitudinal direction, a width direction, and a thickness direction, and includes a front surface sheet, a back surface sheet, and an absorber located between the front surface sheet and the back surface sheet, and the absorber is the longitudinal direction. A plurality of high-rigidity portions arranged in one of the direction and the width direction, and a second high-rigidity portion adjacent to each of the adjacent high-rigidity portions, which is the other of the longitudinal direction and the width direction. The main body fixing portion includes a low-rigidity portion extending in the direction, and the main body fixing portion is a position where at least a part of the low-rigidity portion of the surface of the release sheet on the non-absorbent article side overlaps in the thickness direction. The individual package is formed in the above-mentioned individual package in a plan view, is located in the high-rigidity portion in the first direction, and has a folded portion extending along the second direction. An individual package having a configuration in which the absorbent article is folded together with the individual package sheet at a position.

This individual package is an absorbent article in which a clothing fixing portion and a release sheet are provided in this order on the surface on the non-absorbent article side, and the low-rigidity portion of the surface on the non-absorbent article side of the release sheet. The main body fixing portion is formed at a position where at least a part of the above overlaps in the thickness direction. The main body fixing portion can reinforce the portion corresponding to the low rigidity portion of the absorbent article via the clothing fixing portion and the release sheet, and the rigidity thereof can be increased. Therefore, it is possible to prevent the portion corresponding to the low-rigidity portion of the absorbent article folded together with the individual packaging sheet from shrinking in the first direction (example: longitudinal direction). Therefore, when the individual package is stored, it is possible to prevent the low-rigidity portion of the absorber and the corresponding surface sheet from being wrinkled due to shrinkage. That is, it is possible to obtain an individual package that can suppress leakage while maintaining the ease of adhesion to the wearer's body, and can suppress a sense of security and deterioration of aesthetics.

[Aspect 10]
The main body fixing portion is located at a position where a region of the surface of the release sheet on the non-absorbent article side that straddles the low-rigidity portion and the high-rigidity portion adjacent to the low-rigidity portion overlaps in the thickness direction. The individual package according to aspect 9, which is arranged.
In this individual package, the main body fixing portion is located at a position where a region of the surface of the release sheet on the non-absorbent article side that straddles the low-rigidity portion and the high-rigidity portion adjacent to the low-rigidity portion overlaps in the thickness direction. Is formed in. The main body fixing portion can further reinforce the portion corresponding to the low rigidity portion in the absorbent article, and the rigidity can be further increased. Thereby, the portion corresponding to the low-rigidity portion of the absorbent article folded together with the individual wrapping sheet can be further suppressed from shrinking in the first direction (example: longitudinal direction). Therefore, it is possible to further suppress the occurrence of wrinkles due to shrinkage in the low-rigidity portion of the absorber and the corresponding surface sheet during storage of the individual package.

[Aspect 11]
The main body fixing portion is a region of the surface of the release sheet on the non-absorbent article side that straddles the low-rigidity portion and two high-rigidity portions adjacent to both sides of the low-rigidity portion in the first direction. The individual package according to aspect 9 or 10, wherein the individual packages are arranged at positions overlapping in the thickness direction.
In this individual package, the main body fixing portion is two adjacent surfaces of the release sheet on the non-absorbent article side, the low-rigidity portion and the low-rigidity portion on both sides in the first direction (example: longitudinal direction). The region straddling the high-rigidity portion is formed at a position where it overlaps in the thickness direction. The main body fixing portion can further reinforce the portion corresponding to the low rigidity portion in the absorbent article, and the rigidity can be further increased. Thereby, the portion corresponding to the low-rigidity portion in the absorbent article can be further suppressed from shrinking in the first direction (exemplification: longitudinal direction). Therefore, it is possible to further suppress the occurrence of wrinkles due to shrinkage in the low-rigidity portion of the absorber and the corresponding surface sheet during storage of the individual package.

[Aspect 12]
The individual package is located in each of the two high-rigidity portions adjacent to both sides of the low-rigidity portion in the longitudinal direction in a plan view in the unfolded state, and at least two extend along the width direction. 9 Individual packaging.
The individual package is located at each of the two high-rigidity portions adjacent to both sides of the low-rigidity portion, and the product is folded at each position of at least two folded portions extending along the width direction. Here, the main body fixing portion is formed at a position where at least a part of the low rigidity portion of the surface of the release sheet on the non-absorbent article side overlaps in the thickness direction. That is, the main body fixing portion reinforces the portion corresponding to the low rigidity portion of the absorbent article, and its rigidity is enhanced. Therefore, it is possible to prevent the portion of the absorbent article corresponding to the low-rigidity portion from shrinking in the first direction (eg, the longitudinal direction). Therefore, when the individual package is stored, it is possible to prevent the low-rigidity portion of the absorber and the corresponding surface sheet from being wrinkled due to shrinkage.

[Aspect 13]
The individual package according to any one of aspects 9 to 12, wherein the first direction is the longitudinal direction and the second direction is the width direction.
In an absorbent article that easily adheres to the wearer's body, a low-rigidity portion having relatively low rigidity is provided in the middle portion of the absorber in the longitudinal direction, and the low-rigidity portion makes it easy to bend the absorber. It makes it easier for the absorber, and thus the absorbent article, to come into close contact with the wearer's body. In that case, in the absorbent article folded together with the individual packaging sheet at the position of the folded portion extending in a strip shape along the width direction, the low-rigidity portion and the corresponding surface sheet may be wrinkled due to shrinkage. Therefore, in this individual package, the first direction is the longitudinal direction and the second direction is the width direction. Therefore, as described above, the portion corresponding to the low-rigidity portion of the absorbent article is reinforced by the main body fixing portion, so that the rigidity is enhanced. Therefore, it is possible to prevent the portion of the absorbent article corresponding to the low-rigidity portion from shrinking in the longitudinal direction and eventually wrinkling.

Hereinafter, a method for manufacturing an individual package according to the present invention and an embodiment of the individual package will be described.

First, the individual package according to the embodiment will be described. In the present embodiment, the individual package will be described by taking a sanitary napkin as an example as an absorbent article to be stored in the individual package. However, in the present invention, the types and uses of the absorbent article are not limited to the above examples, and other absorbent articles may be used as long as they do not deviate from the scope of the subject matter of the present invention. Other absorbent articles include, for example, panty liners, light incontinence pads, disposable diapers.

1 to 5 are diagrams showing a configuration example of the individual package 50 according to the embodiment. 1 is a plan view of the unfolded individual package 50, FIGS. 2 and 3 are cross-sectional views taken along the lines II-II and III-III of FIG. 1, respectively, and FIG. 4 is the individual package 50. It is a top view of the absorber 4 of the absorbent article 1, and FIG. 5 is a bottom view of the developed individual package 50. The individual wrapping body 50 includes an absorbent article 1 and an individual wrapping sheet 40 (including a wrapping tape 41) for wrapping the absorbent article 1.

The absorbent article 1 has a longitudinal direction L, a width direction W, and a thickness direction T orthogonal to each other. In the absorbent article 1 drawn in FIG. 1, the upper side and the lower side of the figure are the front side and the rear side in the longitudinal direction L, respectively, and the left side and the right side are the left side and the right side in the width direction W, respectively, and the front side with respect to the paper surface. And the back side are the upper side and the lower side in the thickness direction T, respectively. The absorbent article 1 has a longitudinal center line C _L (virtual line) that passes through the center of the width direction W and extends in the longitudinal direction L, and a width direction center line C _W (virtual line) that passes through the center of the longitudinal direction L and extends in the width direction W. Line) and. The direction and side toward the center line C _L in the longitudinal direction are the inward direction and the inside of the width direction W, respectively, and the direction and the side away from each other are the outward direction and the outside of the width direction W, respectively. On the other hand, the direction and the side toward the center line C _W in the width direction are the inward and the inside of the longitudinal direction L, respectively, and the direction and the side away from it are the outward and the outside of the longitudinal direction L, respectively. The view of the absorbent article 1 placed on the plane including the longitudinal direction L and the width direction W from the upper side in the thickness direction T is referred to as a plan view, and the shape grasped in the plan view is referred to as a planar shape. Any direction in the plane including the longitudinal direction L and the width direction W is referred to as a plane direction. When the wearer wears the absorbent article 1, the sides relatively close to and far from the wearer's skin surface in the thickness direction T are referred to as the skin side and the non-skin side, respectively. These definitions are also commonly used for each material of the absorbent article 1 and each material related to the individual wrapping body 50 such as the individual wrapping sheet 40. Further, in each material in the individual package 50, the side of the target material close to the absorbent article 1 is also referred to as an absorbent article side, and the side far from the absorbent article 1 is also referred to as a non-absorbent article side.

In the present embodiment, the absorbent article 1 (excluding the wing portion and the hip flap portion) has a substantially rectangular shape long in the longitudinal direction L and short in the width direction W in a plan view, and both ends of the longitudinal direction L. Has a substantially semi-circular shape. The shape of the absorbent article 1 is not particularly limited as long as it is long in the longitudinal direction L and short in the width direction W, and examples thereof include a rounded rectangle, an ellipse, a gourd shape, and an hourglass shape. The absorbent article 1 includes a pair of wing portions 9 extending from a portion having a substantially rectangular shape to both outer sides in the width direction W at the center or the front side in the longitudinal direction L. The wing portion 9 has a substantially trapezoidal shape, but may be semi-circular or semi-elliptical, for example. The absorbent article 1 includes a pair of hip flap portions 14 extending from a portion having a substantially rectangular shape to both outer sides in the width direction W on the rear side in the longitudinal direction L. The hip flap portion 14 has a substantially bow-shaped shape, but may be semi-circular or semi-elliptical, for example.

The absorbent article 1 includes a front surface sheet 2, an absorber 4, and a back surface sheet 3, and in the present embodiment, further includes an auxiliary sheet 5. The surface sheet 2 is a liquid-permeable sheet, and in the present embodiment, constitutes the surface of the absorbent article 1 on the skin side. The auxiliary sheet 5 is a liquid permeable sheet, and in this embodiment, it is laminated on the non-skin side of the surface sheet 2. The absorber 4 is a liquid-absorbing and liquid-retaining material, and is located between the auxiliary sheet 5 and the back surface sheet 3. The back surface sheet 3 is a liquid-impermeable sheet, and in the present embodiment, constitutes the surface of the absorbent article 1 on the non-skin side. Therefore, in the absorbent article 1, the front surface sheet 2, the auxiliary sheet 5, the absorber 4, and the back surface sheet 3 are laminated in this order in the thickness direction T. The absorbent article 1 may further include an exterior sheet on the non-skin side of the back sheet 3.

A clothing fixing portion 7 is formed on the back surface sheet 3 (or exterior sheet) constituting the surface of the absorbent article 1 on the non-skin side (clothing side). The clothing fixing portion 7 is an adhesive (example: hot melt adhesive) that adheres the absorbent article 1 to the skin side surface of the underwear. In the present embodiment, the plurality of clothing fixing portions 7 extend along the longitudinal direction L and are arranged side by side at intervals in the width direction W in the region overlapping the absorber 4 in a plan view. Each of the plurality of clothing fixing portions 7 has a substantially rectangular shape, but the shape thereof is arbitrary.

Further, in the present embodiment, the back surface sheet 3 (or the exterior sheet) constituting the non-skin side (clothing side) surface of the absorbent article 1 has a pair of back surface clothing fixing portions 8 and a pair of back surface clothing fixing portions. 10 and are formed. The pair of back surface clothing fixing portions 8 are adhesives that adhere the pair of wing portions 9 to the non-skin side surface of the underwear, and are arranged on the non-skin side surface of the back surface sheet 3 in the pair of wing portions 9. The pair of back surface clothing fixing portions 10 are adhesives that adhere the pair of hip flap portions 14 to the non-skin side surface of the underwear, and are arranged on the non-skin side surface of the back surface sheet 3 of the pair of hip flap portions 14. .. The back surface clothing fixing portion 8 and the back surface clothing fixing portion 10 have a substantially rectangular shape, but the shape thereof is arbitrary.

In this embodiment, the absorbent article 1 further comprises a pair of side seats 6. The pair of side sheets 6 are hydrophilic or water-repellent sheets, and are located on both sides of the auxiliary sheet 5 in the width direction W in the present embodiment. The pair of side seats 6 includes a pair of leak-proof walls 16 extending along the longitudinal direction L inside the width direction W. Each of the pair of leak-proof walls 16 has a fixed end 16E1 at the outer end in the width direction W and is joined to the auxiliary sheet 5, and a free end 16E2 at the inner end, which is not joined to the member. The leak-proof wall 16 may have an elastic member extending along the longitudinal direction L at the free end 16E2. In the width direction W, the edge 2E of the surface sheet 2 in the width direction W is separated from the fixed end 16E1 and the free end 16E2 of the leak-proof wall 16 facing the width direction W, and therefore, in a plan view, the surface sheet. The auxiliary sheet 5 is exposed between the 2 and the pair of leak-proof walls 16.

In the present embodiment, the surface sheet 2 has a substantially rectangular shape long in the longitudinal direction L and short in the width direction W, and both ends of the longitudinal direction L have a substantially semicircular shape. The surface sheet 2 includes a first fiber layer 2a containing water-retaining fibers and a second fiber layer 2b containing water-retaining fibers and hydrophobic fibers. The skin-side surface of the first fiber layer 2a constitutes the skin-side surface of the surface sheet 2, and the non-skin-side surface is in contact with the skin-side surface of the second fiber layer 2b. The non-skin side surface of the second fiber layer 2b constitutes the non-skin side surface of the surface sheet 2. The surface sheet 2 may be any one of the first fiber layer 2a and the second fiber layer 2b, or may be a three layer further including another fiber layer. Further, the types of constituent fibers of the first fiber layer 2a and the second fiber layer 2b are not limited to the above examples as long as the surface sheet 2 becomes a liquid permeable sheet.

The auxiliary sheet 5 has a substantially rectangular shape that is long in the longitudinal direction L and short in the width direction W, and has a substantially semicircular shape at both ends of the longitudinal direction L. The auxiliary sheet 5 has a shape slightly larger in the width direction W than the surface sheet 2. Therefore, the length (width) of the auxiliary sheet 5 in the width direction W is larger than the length (width) of the surface sheet 2 in the width direction W. Then, in a plan view, each of both ends of the auxiliary sheet 5 in the width direction W extends to the outside of each of both end edges 2E of the surface sheet 2 in the width direction W. Therefore, each of the both end edges 5E of the auxiliary sheet 5 in the width direction W is located outside the end edges 2E of the surface sheet 2 in the width direction W. In the present embodiment, the length (width) of the auxiliary sheet 5 in the width direction W is substantially the same as the length (width) of the absorber 4 in the width direction W.

In the present embodiment, the surface sheet 2 and the auxiliary sheet 5 are bonded to each other with an adhesive (not shown, eg, hot melt adhesive). In the surface sheet 2, the central portion in the width direction W is bonded to the auxiliary sheet 5 with an adhesive, and both ends in the width direction W are not bonded to the auxiliary sheet 5. Each of the central portion and the both end portions is separated by each of a pair of virtual boundary lines 17 extending along the longitudinal direction L. Therefore, each of both end portions of the surface sheet 2 is formed as a fixed end by connecting the inner edge in the width direction W to the edge in the width direction W in the central portion, and is the outer edge (longitudinal direction) in the width direction W. (Except for both ends of L) is a free end that is not joined to any member.

Therefore, each of the both end portions of the surface sheet 2 tends to be bulky because the free end easily moves with respect to the auxiliary sheet 5 in the thickness direction T, and can stand up from the auxiliary sheet 5. Therefore, each of both end portions of the surface sheet 2 tends to have a shape like a bank with respect to the central portion, and the fiber density tends to be low. As a result, each of both end portions of the surface sheet 2 transfers the body fluid diffused from the central portion to the end portion of the surface sheet 2 to the outside in the width direction W due to the difference in surface height and the difference in fiber density. It can be difficult. As described above, in the absorbent article 1, even when the amount of the body fluid is large, the lateral leakage of the body fluid can be further suppressed and the touch can be further improved.

In the present embodiment, the absorber 4 has a substantially rectangular shape that is long in the longitudinal direction L in a plan view, and has a substantially semicircular shape at both ends of the longitudinal direction L. The absorber 4 includes an absorbent core 4a and a core wrap 4b covering it. The length (width) of the absorber 4 in the width direction W is larger than the length (width) of the surface sheet 2 in the width direction W. Therefore, in a plan view, both ends of the surface sheet 2 are located inside the both end edges of the absorber 4 in the width direction W.

The absorber 4 has a plurality of high-rigidity portions HB arranged in the longitudinal direction L (first direction) and low-rigidity portions LB adjacent to each of the adjacent high-rigidity portions HB and extending in the width direction W (second direction). And, including. However, the high-rigidity portion HB and the low-rigidity portion LB are a portion in the absorber 4 having a relatively high rigidity and a portion having a relatively low rigidity, respectively. The high-rigidity portion HB and the low-rigidity portion LB are, for example, a portion having a large basis weight (a portion having a thick thickness) and a portion having a small basis weight (a portion having a thin thickness) (however, the mass densities are substantially the same). As another example of the high-rigidity portion HB and the low-rigidity portion LB, the high-rigidity portion HB is composed of the embossed portion of the absorber 4, and the low-rigidity portion LB is composed of the non-embossed portion of the absorber 4. May be good. As yet another example, the high-rigidity portion HB is composed of a squeezed portion in which the surface sheet 2 and the absorber 4 are squeezed, and the low-rigidity portion LB is not squeezed in the surface sheet 2 and the absorber 4. It may be composed of a non-squeezed portion. Alternatively, as the rigidity, the rigidity (measured with a Gale stiffness / softness tester compliant with the Gale method of JIS L 1096 (fabric test method for woven fabrics and knits) or JIS L 1085 (nonwoven fabric test method)) is measured. , Relative heights of stiffness and softness may be compared with relative heights of rigidity. However, the basis weight of the high-rigidity portion HB is, for example, 250 to 900 g / m ² , and the basis weight of the low-rigidity portion LB is, for example, 0 to 150 g / m ² . If the difference in basis weight between the two is about 100 g / m ² , the absorber 4 is easily deformed by the low-rigidity portion LB and easily adheres to the wearer's body, but the larger the difference, the more wrinkles occur. It will be easier.

In the embodiment, the high-rigidity portion HB1 and the high-rigidity portion HB2 arranged in the longitudinal direction L, and the low-rigidity portion LBW1 adjacent to each of the adjacent high-rigidity portions HB1 and the high-rigidity portion HB2 and extending in the width direction W are provided. Includes. However, the high-rigidity portion HB1 is located in front of the longitudinal direction L, and the high-rigidity portion HB2 is located behind the longitudinal direction L. The low-rigidity portion LBW1 extends from one end edge of the width direction W of the absorber 4 to the other end edge between the high-rigidity portion HB1 and the high-rigidity portion HB2. The boundary between the low-rigidity portion LBW1 and the high-rigidity portion HB1 is BL11, and the boundary between the low-rigidity portion LBW2 and the high-rigidity portion HB2 is BL12. In such an absorbent article 1, the low-rigidity portion LBW1 is bent during use, so that the absorber 4 can be easily deformed along the wearer's skin surface in the longitudinal direction L. As a result, the absorbent article 1 can be easily brought into close contact with the wearer's body, and transmission leakage and lateral leakage can be suppressed.

In the present embodiment, the absorber 4 further comprises a plurality of low-rigidity portions LBW2 to LBW4 arranged inside the high-rigidity portion HB2 at intervals in the longitudinal direction L, and low-rigidity portions LBW1 to LBW4 in the longitudinal direction L. It contains a low-rigidity part LBL that penetrates through. The low-rigidity portions LBW2 to LBW4 extend in the width direction W, but a part of the high-rigidity portion HB2 exists on both outer sides of the width direction W. In such an absorbent article 1, the low-rigidity portions LBW1 to LBW4 are bent during use, so that the absorbent body 4 can be more easily deformed along the wearer's skin surface in the longitudinal direction L, and the low-rigidity portion By bending the LBL, the absorber 4 can be easily deformed along the wearer's skin surface in the width direction W. As a result, the absorbent article 1 can be easily brought into close contact with the wearer's body, and transmission leakage and lateral leakage can be further suppressed.

In the present embodiment, the portion of the auxiliary sheet 5 and the pair of side sheets 6 facing the absorber 4 on the non-skin side and the surface of the absorber 4 on the skin side have a predetermined pattern of an adhesive (example: hot melt adhesive). ). The portion of the auxiliary sheet 5, the pair of side sheets 6 and the absorber 4 facing the back surface sheet 3 on the non-skin side is bonded to the back surface sheet 3 with an adhesive of a predetermined pattern (example: hot melt adhesive) or a heat seal. Will be done.

In the present embodiment, the absorbent article 1 further includes a squeezing portion (squeezing groove) 11a, 11b, a pair of squeezing portions (squeezing groove) 12, and a pair of squeezing portions (squeezing groove) 13a, 13b, 13c. Be prepared. The squeezed portions 11a and 11b are located at the front and rear end portions of the absorber 4 in the longitudinal direction L, respectively, in a plan view. The pair of squeezed portions 12 are arranged at intervals on both outer portions of the width direction W of the excretion port contact area in the absorber 4 in a plan view, and extend continuously or intermittently along the longitudinal direction L. There is. However, the excretion port contact area is a region in which the wearer's excretion port of the absorbent article 1 abuts in a plan view, and is approximately the center of the width direction W of the absorber 4 between each of the pair of wing portions 9. This is the area where the part is located. The pair of squeezed portions 13a, 13b, 13c are arranged in a plan view on the rear portion of the pair of squeezed portions 12 in the longitudinal direction L at intervals in the width direction W, and are continuous or intermittent along the longitudinal direction L. Is extended. The squeezed portions 11a, 11b, 12, 13a, 13b, 13c are formed by compressing the surface sheet 2, the auxiliary sheet 5, and the absorber 4 (the core wrap 4b on the skin side and the absorbent core 4a) in the thickness direction T. .. The bottom of the squeezed portions 11a, 11b, 12, 13a, 13b, 13c in the thickness direction T is located in the absorbent core 4a, but may reach the core wrap 4b on the non-skin side. In the present embodiment, the shapes of the squeezed portions 11a, 11b, 12, 13a, 13b, and 13c in a plan view are linear, but other shapes may be used. Further, at least one of the squeezed portions 11a, 11b, 12, 13a, 13b and 13c may be omitted.

In the present embodiment, the absorbent article 1 further includes a pair of squeezing portions (squeezing grooves) 15a, 15b, 15c. The pair of squeezed portions 15a and the pair of squeezed portions 15c are continuous along the longitudinal direction L on the inside of the pair of leak-proof walls 16 and on the front and rear portions in the longitudinal direction L in the pair of leak-proof walls 16. Or it extends intermittently. The pair of squeezed portions 15b extend continuously or intermittently along the longitudinal direction L to the outer side of the pair of leak-proof walls 16 in the width direction W and the central portion in the longitudinal direction L in a plan view. The squeezed portions 15a, 15b, and 15c are formed by compressing the side sheet 6 and the auxiliary sheet 5 in the thickness direction T. The bottom of the squeezed portions 15a, 15b, and 15c in the thickness direction T reaches the non-skin side surface of the auxiliary sheet 5, but may not reach it. Further, the lower portion thereof may reach the absorber 4. In the present embodiment, the shapes of the squeezed portions 15a, 15b, and 15c in a plan view are shapes in which rhombuses are lined up, but other shapes may be used. Further, at least one of the squeezed portions 15a, 15b and 15c may be omitted. Since the pair of squeezed portions 15b are present at least at positions overlapping the low-rigidity portion LBW1 in the longitudinal direction L, it can be considered that the rigidity in the region including the low-rigidity portion LBW1 of the absorber 4 is increased.

The release sheet 20 is arranged on the surface of the clothing fixing portion 7 on the non-absorbent article side, that is, the lower surface in the thickness direction T. The release sheet 20 protects the clothing fixing portion 7 for adhering to the skin side surface of the underwear when the absorbent article 1 is used. A release sheet (not shown) is also arranged on the surface of the pair of back surface clothing fixing portions 8 and the pair of back surface clothing fixing portions 10 on the non-absorbent article side, that is, the lower surface in the thickness direction T. Examples of the basis weight of the sheet used in the release sheet 20 include 30 to 40 g / m ^{2, which is 35 g / m 2 in} the present embodiment.

A main body fixing portion 23 is formed on the surface of the release sheet 20 on the non-absorbent article side, that is, the lower surface in the thickness direction T. In the present embodiment, the main body fixing portions 21, 22, and 24 are further formed. , 25 are formed. The main body fixing portions 21, 22, 23, 24, 25 are adhesives (eg, hot melt adhesive) that temporarily fix the absorbent article 1 to the individual packaging sheet 40 via the release sheet 20 and the clothing fixing portion 7. Is. The main body fixing portions 21, 22, 23, 24, and 25 are arranged at the center of the release sheet 20 in the width direction W so as to be arranged at intervals along the longitudinal direction L. Examples of the basis weight of the adhesive used in the main body fixing portions 21, 22, 23, 24, 25 include, for example, 5 to 100 g / m ² , preferably 5 to 50 g / m ² , more than the individual packaging sheet 40. It is more preferable that the basis weight is low . Examples of the sheet used in the individual wrapping sheet 40 include SMS and synthetic resin films. Examples of the basis weight of the sheet include 10 to 20 g / m ² , and in the present embodiment, it is 13 to 15 g / m ² .

FIG. 6 is a schematic view showing the relationship between the main body fixing portion 23 and the low-rigidity portion LBW1 according to the embodiment. The main body fixing portion 23 has a position (region) in which at least a part of the low rigidity portion LBW1 of the surface of the release sheet 20 on the non-absorbent article side, that is, the lower surface in the thickness direction T, overlaps with the thickness direction T. ) Is formed. In the present embodiment, the main body fixing portion 23 is formed at a position (region) where a region straddling the low-rigidity portion LBW1 and the high-rigidity portion HB1 adjacent to the low-rigidity portion LBW1 overlaps in the thickness direction T. The main body fixing portion 23 can reinforce the portion corresponding to the low rigidity portion LBW1 in the absorbent article 1 via the clothing fixing portion 7 and the release sheet 20, and the rigidity thereof can be increased.

The main body fixing portion 23 is, like the main body fixing portion 23a and / or the main body fixing portion 23b shown by a virtual line in FIG. 6, toward the rear side in the longitudinal direction L and / or the outside in the width direction W in a plan view. It may extend so as to straddle the low-rigidity portion LBW1. That is, the main body fixing portion 23 (23a and / or 23b) is adjacent to both sides of the low-rigidity portion LBW1 and the low-rigidity portion LBW1 in the longitudinal direction L on the surface of the release sheet 20 on the non-absorbent article side. A region straddling the high-rigidity portion HB1 and the high-rigidity portion HB2 is formed at a position (region) overlapping in the thickness direction T. The main body fixing portion 23 (23a and / or 23b) can further reinforce the portion corresponding to the low rigidity portion LBW1 in the absorbent article 1, and the rigidity thereof can be further increased.

The number of main body fixing portions 23 (23a and / or 23b) formed at a position (region) where the region straddling the low-rigidity portion LBW1 and the high-rigidity portion HB1 adjacent to the low-rigidity portion LBW1 overlaps in the thickness direction T. The area is not limited to this example. From the viewpoint of reinforcement and rigidity improvement, the number may be plural, and the area may be larger. Further, the shape of the main body fixing portion 23 (23a and / or 23b) is not limited to a rectangular shape, and may be a circle, an ellipse, a polygon, or the like. The same applies to the shapes of the main body fixing portions 21, 22, 24, and 25. In the present embodiment, the low-rigidity portions LBW2 to LBW4 have high-rigidity portions HB2 on both outer sides in the width direction W, and the peripheral portions thereof have rigidity in the longitudinal direction L. The main body fixing portion is not formed at a position overlapping the low-rigidity portions LBW2 to LBW4 in the thickness direction T. However, from the viewpoint of reinforcement and rigidity improvement, the main body fixing portion may be formed at those positions.

The unfolded individual package 50 shown in FIG. 1 is located in the high-rigidity portion HB in the longitudinal direction L (first direction) and extends along the width direction W (second direction) in a plan view. Or has multiple folds. The absorbent article 1 is folded together with the individual packaging sheet 40 at the positions of one or a plurality of folding portions to form the individual packaging body 50. In the present embodiment, in a plan view, the first fold portion FW1 in the width direction, the second fold portion FW2 in the width direction, and the width are arranged at intervals from the rear side to the front side in the longitudinal direction L and extend along the width direction W. The third fold portion FW3 in the direction is provided. Then, the absorbent article 1 and the individual packaging sheet 40 are first folded at the position of the first folding portion FW1 in the width direction on the rear side of the first folding portion FW1 in the width direction and L in the longitudinal direction. Next, the portion on the rear side of the second folding portion FW2 in the width direction and the longitudinal direction L is folded at the position of the second folding portion FW2 in the width direction. After that, the portion on the rear side of the third folding portion FW3 in the width direction and the longitudinal direction L is folded at the position of the third folding portion FW3 in the width direction. In this case, since the first fold portion FW1 in the width direction to the third fold portion FW3 in the width direction are provided in the high rigidity portion HB and not in the low rigidity portion LB in a plan view, the fold portion is provided in the low rigidity portion. In comparison with the above, it is possible to prevent the low-rigidity portion LB and the corresponding surface sheet 2 from having a crease. In this way, the absorbent article 1 is folded in four in the longitudinal direction L together with the individual packaging sheet 40. The absorbent article 1 may be independently folded in four in the longitudinal direction L. Further, the absorbent article 1 may be folded in half or in three in the longitudinal direction L alone or together with the individual packaging sheet 40.

Further, in the present embodiment, the absorbent article 1 is folded in three in the width direction W before the absorbent article 1 and the individual packaging sheet 40 are folded a plurality of times (example: 3 times) in the longitudinal direction L. That is, in a plan view, the first folding portion FL1 in the longitudinal direction and the second folding portion FL2 in the longitudinal direction are provided, which are arranged at intervals from the left side to the right side in the width direction W and extend along the longitudinal direction L. Then, in the absorbent article 1, first, the portion on the left side in the width direction W from the first folding portion FL1 in the longitudinal direction is folded at the position of the first folding portion FL1 in the longitudinal direction. Next (or at the same time), the portion on the right side in the width direction W with respect to the second folding portion FL2 in the longitudinal direction is folded at the position of the second folding portion FL2 in the longitudinal direction. In this way, the absorbent article 1 is folded in three in the width direction W. The absorbent article 1 may be folded in three in the width direction W together with the individual wrapping sheet 40. Further, the absorbent article 1 does not have to be folded in the width direction W.

Since the absorbent article 1 has a thickness, the folding position when folded has a certain width (example: about the thickness of the absorbent article 1). Therefore, the first folding portion FW1 in the width direction to the third folding portion FW3 in the width direction are band-shaped regions having a certain width in the longitudinal direction L. Then, the width of the first folding portion FW1 in the width direction, which is the folding position of the first folding, is the smallest, and the width of the third folding portion FW3 in the width direction, which is the folding position of the last folding, is the largest. This is because the thickness of the object to be folded becomes thicker as the number of times of folding increases. Similarly, the first folding portion FL1 in the longitudinal direction and the second folding portion FL2 in the longitudinal direction are band-shaped regions having a certain width in the width direction W. The width of the first folded portion FL1 in the longitudinal direction and the width of the second folded portion FL2 in the longitudinal direction are substantially the same.

The individual package 50 is an absorbent article 1 in which a clothing fixing portion 7 and a release sheet 20 are provided in this order on the surface of the non-absorbent article side, and the surface of the release sheet 20 on the non-absorbent article side. The main body fixing portion 23 is formed at a position (region) where at least a part of the low-rigidity portion LBW1 overlaps in the thickness direction T. The main body fixing portion 23 can reinforce the portion of the absorbent article 1 corresponding to the low rigidity portion LBW1 via the clothing fixing portion 7 and the release sheet 20, and the rigidity thereof can be increased. Therefore, it is possible to prevent the portion of the absorbent article 1 folded together with the individual packaging sheet 40 corresponding to the low-rigidity portion LBW1 from shrinking in the longitudinal direction L (first direction). Therefore, when the individual package 50 is stored, it is possible to prevent the low-rigidity portion LBW1 of the absorber 4 and the corresponding surface sheet 2 from being wrinkled due to shrinkage. That is, it is possible to obtain an individual package that can suppress leakage while maintaining the ease of adhesion to the wearer's body, and can suppress a sense of security and deterioration of aesthetics.

In the individual package 50, the main body fixing portion 23 has a region of the surface of the release sheet 20 on the non-absorbent article side that straddles the low-rigidity portion LBW1 and the high-rigidity portion HB1 adjacent to the low-rigidity portion LBW1. It is formed at a position (region) overlapping in the thickness direction T. The main body fixing portion 23 can further reinforce the portion corresponding to the low rigidity portion LBW1 in the absorbent article 1, and the rigidity thereof can be further increased. As a result, the portion of the absorbent article 1 folded together with the individual packaging sheet 40 corresponding to the low-rigidity portion LBW1 can be further suppressed from shrinking in the longitudinal direction L (first direction). Therefore, when the individual package 50 is stored, it is possible to further suppress the occurrence of wrinkles due to shrinkage on the low-rigidity portion LBW1 of the absorber 4 and the corresponding surface sheet 2.

In the individual package 50, the main body fixing portions 23 are provided on both sides of the low-rigidity portion LBW1 and the low-rigidity portion LBW1 in the longitudinal direction L (first direction) on the surface of the release sheet 20 on the non-absorbent article side. A region straddling two adjacent high-rigidity portions HB1 and HB2 is formed at a position (region) overlapping in the thickness direction T. The main body fixing portion 23 can further reinforce the portion corresponding to the low rigidity portion LBW1 in the absorbent article 1, and the rigidity thereof can be further increased. As a result, it is possible to further suppress the portion of the absorbent article 1 corresponding to the low-rigidity portion LBW1 from shrinking in the longitudinal direction L (first direction).

The individual package 50 is located at each of the two high-rigidity portions HB1 and HB2 adjacent to both sides of the low-rigidity portion LBW1, and has at least two widthwise second folding portions FW2 and width extending along the width direction W. The absorbent article 1 is folded together with the individual packaging sheet 40 at each position of the third folding portion FW3 in the direction. Here, the main body fixing portion 23 is formed at a position where at least a part of the low rigidity portion LBW1 on the surface of the release sheet 20 on the non-absorbent article side overlaps in the thickness direction T. That is, the main body fixing portion 23 reinforces the portion corresponding to the low rigidity portion LBW1 in the absorbent article 1, and its rigidity is enhanced. Therefore, it is possible to further suppress the portion of the absorbent article 1 corresponding to the low-rigidity portion LBW1 from shrinking in the longitudinal direction L (first direction).

In the absorbent article 1 that easily adheres to the wearer's body, a low-rigidity portion LBW1 having a relatively low rigidity is provided in the middle portion of the absorber 4 in the longitudinal direction L, and the absorber 4 is bent by the low-rigidity portion LBW1. By making it easier, the absorbent body 4 and the absorbent article 1 are easily brought into close contact with the wearer's body. In that case, in the absorbent article 1 folded together with the individual packaging sheet 40 at the positions of the second folding portion FW2 in the width direction and the third folding portion FW3 in the width direction extending in a strip shape along the width direction W, the low rigidity portion LBW1 And the corresponding surface sheet 2 may be wrinkled due to shrinkage. Therefore, in the individual package 50, the first direction is the longitudinal direction L and the second direction is the width direction W. Therefore, as described above, the portion corresponding to the low-rigidity portion LBW1 of the absorbent article 1 is reinforced by the main body fixing portion 23, so that the rigidity is enhanced. Therefore, it is possible to prevent the portion of the absorbent article 1 corresponding to the low-rigidity portion LBW1 from shrinking in the longitudinal direction L and eventually wrinkling.

Next, a method for manufacturing the individual package 50 according to the embodiment will be described. The method for manufacturing an individual package includes a preparation step, an arrangement step, and a folding step.

In the preparation step, the absorbent article 1 is prepared. Here, at least the clothing fixing portion 7 is formed on the surface of the absorbent article 1 on the non-absorbent article side, and the release sheet 20 is arranged on the surface of the clothing fixing portion 7 on the non-absorbent article side. However, the clothing fixing portion 7 may be formed on the absorbent article 1 first, and the release sheet 20 may be arranged on the absorbent article 1 on which the clothing fixing portion 7 is formed, or the clothing fixing portion 7 may be formed first. The release sheet 20 formed on the release sheet 20 and on which the clothing fixing portion 7 is formed may be arranged on the absorbent article 1.

In the present embodiment, the clothes fixing portion 7 is applied to the release sheet 20, and the release sheet 20 to which the clothes fixing portion 7 is applied is arranged on the surface of the absorbent article 1 on the non-absorbent article side. However, the absorbent article 1, the clothing fixing portion 7, and the release sheet 20 are as described with reference to FIGS. 1 to 6. The clothing fixing portion 7 may be applied to the surface of the absorbent article 1 on the non-absorbent article side, and the release sheet 20 may be arranged on the surface of the applied clothing fixing portion 7 on the non-absorbent article side.

In the arranging step, in the prepared absorbent article 1, at least a part of the low-rigidity portion LBW1 on the surface of the release sheet 20 on the non-absorbent article side overlaps in the thickness direction T at a position (region). The main body fixing portion 23 is formed, and the individual wrapping sheet 40 is arranged on the surface of the main body fixing portion 23 on the non-absorbent article side. However, "the main body fixing portion 23 is formed and the individual packaging sheet 40 is arranged on the surface of the main body fixing portion 23 on the non-absorbent article side" means that the main body fixing portion 23 is first formed on the release sheet 20. When the individual wrapping sheet 40 is arranged on the release sheet 20 on which the main body fixing portion 23 is formed, and when the main body fixing portion 23 is first formed on the individual wrapping sheet 40, the main body fixing portion 23 is formed. It includes both cases where the individual wrapping sheet 40 is arranged on the release sheet 20, and means that either case may be used.

In the present embodiment, in the arrangement step, the main body fixing portion 23 is applied to the individual packaging sheet 40, and the individual packaging sheet 40 to which the main body fixing portion 23 is applied is provided with at least a part of the low rigidity portion LBW1 in the thickness direction T. The main body fixing portion 23 is arranged on the surface of the release sheet 20 on the non-absorbent article side so that the main body fixing portion 23 is arranged at a position (region) overlapping the above. In the present embodiment, the main body fixing portions 21, 22, 24, and 25 are also applied together with the main body fixing portion 23. The state of this arrangement process is the same as that of the individually packaged body 50 (excluding the packaging tape 41) in the unfolded state of FIGS. 1 and 5. The main body fixing portions 21 to 25, the individual packaging sheet 40, and the low rigidity portion LBW1 are as described with reference to FIGS. 1 to 6. In the arranging step, the main body fixing portion 23 is applied to a position (region) on the surface of the release sheet 20 on the non-absorbent article side where at least a part of the low rigidity portion LBW1 overlaps in the thickness direction T. The individual packaging sheet 40 may be arranged on the surface of the coated main body fixing portion 23 on the non-absorbent article side.

The folding step is a plan view of the first folding portion FW1 in the width direction to the third folding portion FW3 in the width direction, which is located at the high-rigidity portions HB1 and / or HB2 in the longitudinal direction L and extends in a strip shape along the width direction W. The absorbent article 1 is folded together with the individual packaging sheet 40 at at least one of the positions.

In the present embodiment, in the folding step, first, the individually packaged body 50 in the unfolded state of FIGS. 1 and 5 is subjected to the absorbent article 1 at the positions of the first folding portion FL1 in the longitudinal direction and the second folding portion FL2 in the longitudinal direction. Fold. After that, a substantially rectangular release sheet 31 and a release sheet 32 are arranged on the pair of back surface clothing fixing portions 8 and the pair of back surface clothing fixing portions 10 that are folded and exposed so as to cover them from above. FIG. 7 is a plan view showing an example of a process in the middle of the method of manufacturing the individual package according to the embodiment, in which the absorbent article 1 is located at the positions of the first folding portion FL1 in the longitudinal direction and the second folding portion FL2 in the longitudinal direction. It shows a state in which the release sheets 31 and 32 are folded and arranged. The release sheets 31 and 32 may be an integral sheet. However, the first folding portion FL1 in the longitudinal direction and the second folding portion FL2 in the longitudinal direction are as described with reference to FIGS. 1 to 6.

After that, in the present embodiment, in the folding step, the absorbent articles 1 are sequentially put together with the individual packaging sheet 40 at the positions of the first folding portion FW1 in the width direction to the third folding portion FW3 in the width direction located in the high-rigidity portions HB1 and HB2. Fold. After folding, in the individual package 50, fusion portions 42 by heat fusion are formed at both ends in the width direction W. Then, a wrapping tape 41 (lead tape) is attached to the end of the folded individual wrapping sheet 40 in the longitudinal direction L to seal the individual wrapping body 50. FIG. 8 is a plan view showing an example of the individual package 50 completed by the method for manufacturing the individual package according to the embodiment, in which the absorbent article 1 together with the individual package sheet 40 is the first folded portion FW1 to the width in the width direction. It shows a state in which the individual package 50 is completed by being folded in order at the position of the third folding portion FW3 in the direction. However, the high-rigidity portions HB1 and HB2, and the first folding portion FW1 in the width direction to the third folding portion FW3 in the width direction are as described with reference to FIGS. 1 to 6.

The individual package 50 is manufactured by the above steps.

In this method, in the arranging step, the absorbent article 1 provided with the clothing fixing portion 7 and the release sheet 20 on the surface on the non-absorbent article side is provided with the surface of the release sheet 20 on the non-absorbent article side. The main body fixing portion 23 is formed at a position where at least a part of the low-rigidity portion LBW1 overlaps in the thickness direction T. The main body fixing portion 23 can reinforce the portion of the absorbent article 1 corresponding to the low rigidity portion LBW1 via the clothing fixing portion 7 and the release sheet 20, and the rigidity thereof can be increased. Therefore, even if the absorbent article 1 and the individual packaging sheet 40 are folded at at least one position of the first folding portion FW1 in the width direction to the third folding portion FW3 in the width direction located in the high-rigidity portion HB1 or HB2 in the folding step, the absorbent article 1 and the individual packaging sheet 40 may be folded. It is possible to suppress the shrinkage of the portion of the absorbent article 1 corresponding to the low-rigidity portion LBW1 in the longitudinal direction L. Therefore, when the individual package 50 is manufactured, it is possible to prevent the low-rigidity portion LBW1 of the absorber 4 and the corresponding surface sheet 2 from being wrinkled due to shrinkage. That is, it is possible to manufacture an individual package 50 for storing the absorbent article 1 which can suppress leakage while maintaining the ease of adhesion to the wearer's body and can suppress deterioration of security and aesthetics. ..

In the present method, as a preferred embodiment, the main body fixing portion 23 straddles the low-rigidity portion LBW1 and the high-rigidity portion HB1 or HB2 adjacent to the low-rigidity portion LBW1 on the surface of the release sheet 20 on the non-absorbent article side. The regions are formed at positions where they overlap in the thickness direction T. The main body fixing portion 23 can further reinforce the portion corresponding to the low rigidity portion LBW1 in the absorbent article 1, and the rigidity thereof can be further increased. Thereby, in the folding step, even if the absorbent article is folded together with the individual wrapping sheet at at least one position of the first folding portion FW1 in the width direction to the third folding portion FW3 in the width direction located in the high rigidity portion HB1 or HB2, the absorbent article is absorbed. It is possible to further suppress the portion of the sex article 1 corresponding to the low-rigidity portion LBW1 from contracting in the longitudinal direction L. Therefore, when the individual package 50 is manufactured, it is possible to further suppress the occurrence of wrinkles due to shrinkage on the low-rigidity portion LBW1 of the absorber 4 and the corresponding surface sheet 2.

In the present method, as a preferred embodiment, the main body fixing portion 23a has two heights adjacent to both sides of the low-rigidity portion LBW1 and the low-rigidity portion LBW1 in the longitudinal direction L on the surface of the release sheet 20 on the non-absorbent article side. A region straddling the rigid portions HB1 and HB2 is formed at a position overlapping in the thickness direction T. The main body fixing portion 23a can further reinforce the portion corresponding to the low rigidity portion LBW1 in the absorbent article 1, and the rigidity thereof can be further increased. As a result, even if the absorbent article 1 is folded together with the individual packaging sheet 40 at at least one position of the first folding portion FW1 in the width direction to the third folding portion FW3 in the width direction located in the high-rigidity portions HB1 and HB2 in the folding step. , The portion of the absorbent article 1 corresponding to the low-rigidity portion LBW1 can be further suppressed from contracting in the longitudinal direction L.

In the present method, as a preferred embodiment, the main body fixing portion 23 is formed at a position partially overlapping the region without the clothing fixing portion 7 in a plan view. That is, the main body fixing portion 23 is formed in a portion corresponding to a portion without the clothing fixing portion 7, which may have a lower rigidity than a portion having a higher rigidity due to the presence of the clothing fixing portion 7. Therefore, in the folding step, it is possible to further suppress the portion of the absorbent article 1 corresponding to the portion having low rigidity from shrinking in the longitudinal direction L. Further, the main body fixing portion 23 is formed so as to straddle the clothing fixing portion 7 and the clothing fixing portion 7 adjacent to each other in the width direction W. Therefore, it is possible to prevent the portion of the absorbent article 1 corresponding to the portion having low rigidity from shrinking in the width direction W.

As a preferred embodiment in the present method, in the folding step, the absorbent article 1 is folded together with the individual wrapping sheet 40, and then the wrapping tape 41 (lead tape) is attached to the end portion of the folded individual wrapping sheet 40 in the longitudinal direction L. Has a process. At that time, the packaging tape 41, the low-rigidity portion LBW1, and the main body fixing portion 23 overlap each other in the thickness direction T. As a result, when the absorbent article 1 is folded together with the individual packaging sheet 40, even if fine wrinkles are generated on the low-rigidity portion LBW1 or the corresponding surface sheet 2, the individual packaging body 50 is attached in the packaging tape 41 attachment process. By pressing, the wrinkles of the low-rigidity portion LBW1 covered with the main body fixing portion 23 and the corresponding surface sheet 2 are extended, so that the wrinkles in the absorbent article 1 are further reduced and the aesthetic appearance is improved.

In the present method, as a preferred embodiment, the main body fixing portion 23 is formed behind the position of the pair of wing portions 9 in the longitudinal direction L in a plan view. That is, the main body fixing portion 23 is arranged on the rear side in the longitudinal direction L where the rigidity may be lower than the portion where the rigidity is increased due to the presence of the pair of wing portions 9. Therefore, in the folding step, it is possible to prevent the portion of the absorbent article 1 corresponding to the low-rigidity portion including the low-rigidity portion LBW1 from shrinking in the longitudinal direction L.

In the present method, as a preferred embodiment, the length of the low-rigidity portion LBW1 in the longitudinal direction L is larger than the length (thickness) of the high-rigidity portions HB1 and HB2 in the thickness direction T. Thereby, the absorbent article 1 can be easily brought into close contact with the wearer's body. However, since the length of the low-rigidity portion LBW1 in the longitudinal direction L is relatively long, the absorbent article is elongated together with the individual packaging sheet 40 at the position of the second folding portion FW2 in the width direction extending in a band shape along the width direction W. When folded in the direction L, the high-rigidity portions HB1 and HB2 adjacent to each other across the low-rigidity portion LBW1 are less likely to collide with each other in the longitudinal direction L. That is, the high-rigidity portions HB1 and HB2 are less likely to pull the low-rigidity portion LBW1 in the longitudinal direction L. As a result, the low-rigidity portion LBW1 and the corresponding surface sheet 2 may be wrinkled due to shrinkage. However, in this method, as described above, the main body fixing portion 23 can reinforce the portion corresponding to the low rigidity portion LBW1 of the absorbent article 1, and the rigidity thereof can be increased. Therefore, it is possible to prevent the portion of the absorbent article 1 corresponding to the portion having low rigidity from shrinking in the longitudinal direction L.

As a preferred embodiment in the present method, the folding step is located in each of the two high-rigidity portions HB1 and HB2 adjacent to both sides of the low-rigidity portion LBW1 in the longitudinal direction L and extends along the width direction W in a plan view. The absorbent article 1 is folded together with the individual packaging sheet 40 at each position of at least two widthwise first folded portions FW1 to widthwise third folded portions FW3. Here, in this method, the portion corresponding to the low rigidity portion LBW1 in the absorbent article 1 is reinforced by the main body fixing portion 23, and the rigidity thereof is increased. Therefore, even if the parts are folded by the plurality of high-rigidity portions HB1 and HB2, it is possible to prevent the portion of the absorbent article 1 corresponding to the low-rigidity portion LBW1 from shrinking in the longitudinal direction L.

In the absorbent article 1 that easily adheres to the wearer's body, a low-rigidity portion LBW1 having a relatively low rigidity is provided in the middle portion of the absorber 4 in the longitudinal direction L, and the absorber 4 is bent by the low-rigidity portion LBW1. By making it easier, the absorbent body 4 and the absorbent article 1 are easily brought into close contact with the wearer's body. In that case, when the absorbent article 1 is folded at at least one position from the first folding portion FW1 in the width direction to the third folding portion FW3 in the width direction extending in a strip shape along the width direction W, the low rigidity portion LBW1 or the corresponding portion thereof. Wrinkles may occur on the surface sheet 2 to be formed due to shrinkage. Therefore, in a preferred embodiment of the present method, the main body fixing portion 23 can reinforce the portion corresponding to the low rigidity portion LBW1 of the absorbent article 1, and the rigidity thereof can be increased. Therefore, it is possible to prevent the portion of the absorbent article 1 corresponding to the low-rigidity portion LBW1 from shrinking in the longitudinal direction L and eventually wrinkling.

In the above embodiment, the absorber 4 is adjacent to each of the plurality of high-rigidity portions HB1 and HB2 arranged in the longitudinal direction L (first direction) and the adjacent high-rigidity portions HB1 and HB2, and is adjacent to each of the adjacent high-rigidity portions HB1 and HB2. Includes a low-rigidity portion LBW1 extending in two directions). The main body fixing portion 23 is formed at a position where at least a part of the low-rigidity portion LBW1 overlaps in the thickness direction T on the surface of the release sheet 20 on the non-absorbent article side. Then, in the longitudinal direction L (first direction), the first folding portion in the width direction FW1 to the third folding portion in the width direction, which are located at the high-rigidity portions HB1 and HB2 and extend in a band shape along the width direction W (second direction). At least one position on the FW3, the absorbent article 1 is folded with the individual packaging sheet 40. However, the present invention is not limited to this example, and the longitudinal direction L and the width direction W may be reversed. FIG. 9 is a schematic view showing the relationship between the main body fixing portion 26 and the low-rigidity portion LB of the absorber 4 according to such another embodiment. However, each configuration other than the absorber 4 and the main body fixing portion 26 is the same as that of the above-described embodiment (FIGS. 1 to 8) (the shape of each configuration can be appropriately adjusted).

The absorber 4 has a plurality of high-rigidity portions HB arranged in the width direction W (first direction) and low-rigidity portions LBL adjacent to each of the adjacent high-rigidity portions HB and extending in the longitudinal direction L (second direction). And, including. The main body fixing portion 26 (of which the main body fixing portion 26a) is formed at a position where at least a part of the low-rigidity portion LBL overlaps with the thickness direction T on the surface of the release sheet 20 on the non-absorbent article side. There is. Then, in the width direction W (first direction), the longitudinal first folded portion FL1 to the longitudinal second folded portion FL2 located in the high rigidity portion HB and extending in a band shape along the longitudinal direction L (second direction). At the position, the absorbent article 1 is folded together with the individual packaging sheet 40.

In this embodiment, the relationship between the width direction W and the longitudinal direction L is opposite to that of the embodiment described with reference to FIGS. 1 to 8 above, mainly with respect to the main body fixing portion and the low-rigidity portion of the absorber. However, even in this embodiment, the same effects as those in the embodiments described with reference to FIGS. 1 to 8 can be obtained.

In each embodiment, the first fiber layer 2a in the surface sheet 2 contains water-retaining fibers, whereby the surface sheet 2 can be made to feel good to the touch. The water-retaining fiber is not particularly limited as long as it is a fiber having a property of absorbing and retaining water (water-retaining). Examples of the water-retaining fiber include cellulosic fibers. In this embodiment, the water-retaining fiber is cotton. The second fiber layer 2b contains hydrophobic fibers and water-retaining fibers. The hydrophobic fiber is not particularly limited as long as it is a fiber having hydrophobicity. Examples of the hydrophobic fiber include thermoplastic resin fiber. In the present embodiment, the hydrophobic fiber is a PET / PE core-sheath type composite fiber. The water-retaining fibers are the same as the water-retaining fibers of the first fiber layer 2a.

In each embodiment, the auxiliary sheet 5 is not particularly limited as long as it is liquid permeable, and examples thereof include liquid permeable non-woven fabrics, for example, hydrophobic fiber non-woven fabrics, and thermoplastic resin fiber non-woven fabrics are particularly preferable. Used for. Further, when the surface sheet 2 contains water-retaining fibers such as cotton, the auxiliary sheet 5 may accordingly contain water-retaining fibers such as cotton. In the absorbent article 1 having such a structure, water-retaining fibers having high liquid diffusivity and the like communicate with each other from the first fiber layer 2a of the surface sheet 2 to the auxiliary sheet 5 via the second fiber layer 2b. Therefore, by utilizing the liquid diffusion of the body fluid by these fibers, the body fluid can be more stably transferred from the surface sheet 2 to the absorber 4 via the auxiliary sheet 5, while improving the feel of the surface sheet 2. , Absorption performance can be improved.

In each embodiment, the absorbent core 4a of the absorber 4 is not particularly limited as long as it has liquid absorbency and liquid retention, but for example, a liquid-retaining substance containing water-absorbent fibers such as pulp fibers. Water absorbing materials such as highly absorbent polymers (SAPs) can be mentioned. The core wrap 4b is not particularly limited as long as it can retain the form of the absorbent core 4a, and examples thereof include a liquid permeable sheet containing a hydrophilic non-woven fabric such as tissue.

In each embodiment, the side sheet 6 is not particularly limited, and examples thereof include a water-repellent treated nonwoven fabric and a breathable synthetic resin film. The back surface sheet 3 is not particularly limited, and examples thereof include a liquid-impermeable non-woven fabric, a synthetic resin film, and a composite sheet thereof. In the present embodiment, the wing portion 9 is formed of a side sheet 6 and a back surface sheet 3.

The thickness of the sheet is measured by the following method. A sheet is cut into a size of 10 mm × 10 mm and used as a sample. Next, a magnified image of the cut surface parallel to the thickness direction T of the sample is taken from a direction perpendicular to the cut surface of the sheet using a digital microscope (manufactured by KEYENCE CORPORATION: VHX-100). .. The enlarged image is an image enlarged to a magnification such that the entire thickness direction T of the sheet can be photographed, and the magnification is, for example, 20 to 50 times. In the 2D image converted from the obtained 3D image, the thickness of the sheet is measured. The average value of the thicknesses measured at three separate cut surfaces is taken as the sheet thickness.

Regarding the basis weight of the sheet, the sheet is cut into a size of 5 cm × 5 cm and used as a sample, and the mass is measured after the drying treatment in an atmosphere of 100 ° C. or higher. Divide the measured mass by the area of the sample to calculate the basis weight of the sample. The value obtained by averaging the basis weights of 10 samples is defined as the basis weight of the sheet. The mass density of the sheet is calculated by dividing the weighing of each sample of the sheet obtained by the above method by the thickness of each sample of the sheet obtained by the above method.

The method for producing the individual package of the present invention and the individual package can be appropriately combined or modified without being limited to the above-described embodiments, as long as the object and purpose of the present invention are not deviated. ..

1 Absorbent article 4 Absorber 7 Clothes fixing part 20 Peeling sheet 23 Main body fixing part 40 pieces Packaging sheet LBW1 Low rigidity part HB1, HB2 High rigidity part

Claims (13)

The absorbent article, the clothing fixing portion formed on the clothing-side surface of the absorbent article, the release sheet arranged on the non-absorbent article-side surface of the clothing fixing portion, and the non-absorbent property of the release sheet. A method for manufacturing an individual wrapping body including a main body fixing portion formed on a surface on the article side and an individual wrapping sheet arranged on the non-absorbent article side surface of the main body fixing portion.
The absorbent article has a longitudinal direction, a width direction and a thickness direction, and includes a front surface sheet, a back surface sheet, and an absorber located between the front surface sheet and the back surface sheet.
The absorber is adjacent to each of a plurality of high-rigidity portions arranged in a first direction, which is one of the longitudinal direction and the width direction, and adjacent high-rigidity portions, and is in the longitudinal direction and the width direction. It contains a low-rigidity portion extending in the second direction, which is the other of the two.
The method is
In the preparatory step of preparing the absorbent article, the clothing fixing portion is formed on the surface of the absorbent article on the non-absorbent article side, and the clothing fixing portion is formed on the surface of the non-absorbable article side. The preparation process and the preparation process where the release sheet is arranged,
In the prepared absorbent article, the main body fixing portion is formed at a position where at least a part of the low rigidity portion of the surface of the release sheet on the non-absorbent article side overlaps in the thickness direction. , The arrangement step of arranging the individual wrapping sheet on the surface of the main body fixing portion on the non-absorbent article side,
In a plan view, a folding step of folding the absorbent article together with the individual wrapping sheet at the position of the folding portion located in the high-rigidity portion in the first direction and extending in a band shape along the second direction.
To prepare
Method. In the arrangement step, the thickness of the main body fixing portion is a region of the surface of the release sheet on the non-absorbent article side that straddles the low-rigidity portion and the high-rigidity portion adjacent to the low-rigidity portion. Formed at positions that overlap in the direction,
The method according to claim 1. In the arranging step, the main body fixing portion has two high-rigidity portions adjacent to both sides of the low-rigidity portion and the low-rigidity portion in the first direction of the surface of the release sheet on the non-absorbent article side. A region straddling the portion is formed at a position where the region overlaps with the thickness direction.
The method according to claim 1 or 2. In the plan view, the folding step is located at each of the two high-rigidity portions adjacent to both sides of the low-rigidity portion in the longitudinal direction, and each of at least two folding portions extending along the width direction. Including the step of folding the absorbent article together with the individual packaging sheet at the position of.
The method according to any one of claims 1 to 3. In the arrangement step, the main body fixing portion is formed at a position partially overlapping the region without the clothing fixing portion in a plan view.
The method according to any one of claims 1 to 4. The length of the low-rigidity portion in the first direction is larger than the length of the high-rigidity portion in the thickness direction.
The method according to any one of claims 1 to 5. The first direction is the longitudinal direction, and the second direction is the width direction.
The method according to any one of claims 1 to 6. The absorbent article further comprises a pair of wings extending on both sides in the width direction.
In the arrangement step, the main body fixing portion is formed behind the position of the pair of wing portions in the longitudinal direction in a plan view.
The method according to claim 7. The absorbent article, the clothing fixing portion formed on the surface of the absorbent article on the non-absorbent article side, the release sheet arranged on the surface of the clothing fixing portion on the non-absorbent article side, and the release sheet. An individual wrapping body including a main body fixing portion formed on the surface of the non-absorbent article side and an individual wrapping sheet arranged on the surface of the main body fixing portion on the non-absorbent article side.
The absorbent article has a longitudinal direction, a width direction and a thickness direction, and includes a front surface sheet, a back surface sheet, and an absorber located between the front surface sheet and the back surface sheet.
The absorber is adjacent to each of a plurality of high-rigidity portions arranged in a first direction, which is one of the longitudinal direction and the width direction, and adjacent high-rigidity portions, and is in the longitudinal direction and the width direction. It contains a low-rigidity portion extending in the second direction, which is the other of the two.
The main body fixing portion is formed at a position where at least a part of the low rigidity portion of the surface of the release sheet on the non-absorbent article side overlaps in the thickness direction.
The individual package has a folded portion that is located in the high-rigidity portion in the first direction and extends along the second direction in a plan view, and the absorbent portion is located at the position of the folded portion. The article has a configuration in which it is folded together with the individual wrapping sheet.
Individual packaging. The main body fixing portion is located at a position where a region of the surface of the release sheet on the non-absorbent article side that straddles the low-rigidity portion and the high-rigidity portion adjacent to the low-rigidity portion overlaps in the thickness direction. Being placed,
The individual package according to claim 9. The main body fixing portion is a region of the surface of the release sheet on the non-absorbent article side that straddles the low-rigidity portion and two high-rigidity portions adjacent to both sides of the low-rigidity portion in the first direction. Are arranged at positions overlapping in the thickness direction.
The individual package according to claim 9 or 10. The individual package is located in each of the two high-rigidity portions adjacent to both sides of the low-rigidity portion in the longitudinal direction in a plan view in the unfolded state, and at least two extend along the width direction. The absorbent article has a configuration in which the absorbent article is folded together with the individual packaging sheet at each position of the at least two folds.
The individual package according to any one of claims 9 to 11. The first direction is the longitudinal direction, and the second direction is the width direction.
The individual package according to any one of claims 9 to 12.

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