KR102498460B1 - Absorbent article and method for manufacturing the absorbent article - Google Patents

Abstract

[PROBLEMS] To provide an absorbent article capable of properly using the tape member at the time of disposal while maintaining the fixed state and function of the tape member for post-processing. A method for manufacturing an absorbent article includes: a tape member 60 for post-processing having an absorbent body 30, a topsheet 20, a backsheet 22, and a fixing portion 62 fixed to the backsheet; An absorbent article is manufactured which includes an adhesive portion (70) formed on the non-skin facing side of the backsheet and a release sheet (71) covering the adhesive portion. A method for manufacturing an absorbent article includes a tape fixing step (S2) of fixing a fixing portion of a tape member on a back sheet, and, after the tape fixing step, an adhesive portion and a release sheet disposing an adhesive portion and a release sheet on the non-skin facing side of the back sheet. It has a disposition step (S4).

Description

Absorbent article and method for manufacturing the absorbent article

The present invention relates to an absorbent article having a tape member for post-processing and a manufacturing method thereof.

An absorbent article such as a sanitary napkin or panty liner, in use, adheres to the inside of a wearable article worn on a wearer. Generally, an absorbent article attached to the inside of a wearable article has an adhesive portion for preventing the absorbent article from slipping relative to the wearable article. This adhesive portion is formed on the surface opposite to the skin facing surface side (the side facing the wearer's skin) of the absorbent article. In such an absorbent article, when the worn article removed from the worn article is rolled in the longitudinal direction at the time of disposal, the adhesive portion comes into contact with the skin facing surface of the absorbent article. However, since bodily fluid adheres to the skin facing surface (topsheet) of the absorbent article at the time of disposal, there are cases where the bodily fluid inhibits the bonding between the adhesive portion and the topsheet, making it impossible to keep the absorbent article in a compactly folded state. there was.

Patent Literature 1 discloses an absorbent article provided with a tape member for post-processing. The tape member of Patent Literature 1 is attached to the backsheet of an absorbent article. When discarding the absorbent article, the user can hold the absorbent article in the folded state by fixing the tape member on the adhesive portion in the folded state so that the backsheet is positioned on the outside.

Patent Document 1: Japanese Utility Model Publication No. 4-114317

On the non-skin facing surface of the backsheet of Patent Literature 1, an adhesive portion for fixing an absorbent article to an undergarment and a tape member for post-processing are formed. The adhesive portion is generally covered with a release sheet in order to suppress deterioration before use. The release sheet is peeled off from the backsheet when the absorbent article is worn. On the other hand, since the tape member is used when discarding, it is necessary to remain fixed to the backsheet when the absorbent article is worn. However, if the fixing portion of the tape member to the back sheet overlaps the release sheet due to an attachment error during manufacturing, the tape member may also be peeled off when the release sheet is peeled off, and the tape member may not be usable at the time of disposal.

Therefore, an absorbent article capable of properly using the tape member at the time of disposal, while maintaining the fixed state and function of the tape member for post-processing, is desired.

A method for manufacturing an absorbent article according to the present disclosure includes an absorber (absorber 30), a topsheet (topsheet 20) positioned on the side of the skin facing surface of the absorber, and a surface sheet positioned on the non-skin facing side of the absorber. A back sheet (back sheet 22), a post-processing tape member (tape member 60) having a fixing portion (fixing portion 62) fixed to the back sheet, and an adhesive portion formed on the back sheet. A method of manufacturing an absorbent article having (adhesive portion (70)) and a release sheet (release sheet (71)) covering the adhesive portion, wherein the tape fixing step of fixing the fixing portion of the tape member on the back sheet. (tape fixing step (S2)) and, after the tape fixing step, an adhesive portion arranging step (adhesive portion arranging step (S4)) of disposing the adhesive portion and the release sheet on the non-skin facing side of the back sheet make it a point

The absorbent article according to the present disclosure includes a front-back direction (front-back direction L), a width direction orthogonal to the front-back direction (width direction W), an absorbent body (absorbent body 30), and the absorbent body facing the skin. A topsheet (topsheet 20) positioned on the face side, a backsheet (backsheet 22) positioned on the non-skin facing side of the absorber, and a fixing portion (fixing portion 62) fixed to the backsheet ), a tape member for post-processing (tape member 60), an adhesive portion (adhesive portion 70) formed on the non-skin facing surface side of the back sheet, and a release sheet covering the adhesive portion (release sheet 71 )), and at least a part of the release sheet is arranged in a region overlapping the tape member in the thickness direction.

Another absorbent article according to the present disclosure includes a front-back direction, a width direction orthogonal to the front-back direction, an absorbent body (absorbent body 30), and a topsheet (topsheet 20) positioned on the skin facing surface side of the absorbent body. And, a tape member (tape member (tape member ( 60)), an adhesive portion (adhesive portion 70) formed on the side of the back sheet opposite to the skin, and a release sheet (release sheet 71) covering the adhesive portion, wherein the release sheet comprises the tape member It is the gist that it is arrange|positioned in the area|region which does not overlap with the thickness direction.

1 is a rear view of an absorbent article in one embodiment.
FIG. 2 is a cross-sectional view of the absorbent article along line AA shown in FIG. 1;
Fig. 3 is a perspective view of the absorbent article in a rolled state in the front-back direction;
4 is a diagram for explaining a manufacturing method of an absorbent article.
5 is a view for explaining a tape fixing step and an adhesive part arranging step of the absorbent article manufacturing method.
6 is a rear view of the absorbent article in Modification 1;
7 is a cross-sectional view of the absorbent article taken along line BB shown in FIG. 6;
FIG. 8 is a diagram for explaining the tape fixing step and the adhesive portion arranging step of the absorbent article manufacturing method in Modification Example 1. FIG.
Fig. 9 is a diagram for explaining the tape fixing step and the adhesive portion arranging step of the absorbent article manufacturing method in Modification 2;

From the description of this specification and accompanying drawings, at least the following matters become clear.

A tape member for post-processing having an absorber, a topsheet positioned on the skin-facing surface side of the absorber, a backsheet positioned on the non-skin-facing surface side of the absorber, and a fixing portion fixed to the backsheet; A method of manufacturing an absorbent article comprising an adhesive portion formed on a sheet and a release sheet covering the adhesive portion, comprising: a tape fixing step of fixing the fixing portion of the tape member on the back sheet; An absorbent article manufacturing method comprising an adhesive portion arranging step of arranging the adhesive portion and the release sheet on the side of the backsheet opposite to the skin.

Since the adhesive portion arranging step is performed after the tape fixing step, overlapping of the fixing portion of the tape member on the release sheet can be suppressed. Therefore, it is possible to prevent the tape member from peeling together with the release sheet when the release sheet is peeled off, maintain the fixed state of the tape member until disposal, and appropriately use the tape member.

In the manufacturing method of such an absorbent article, in the step of arranging the adhesive portion, it is preferable to dispose the adhesive portion in a region that does not overlap with the tape member in the thickness direction.

Without covering the adhesive portion with a tape member, it is difficult for the tape member to come into contact with the adhesive portion before disposal. It is possible to suppress the problem that when the tape member is pulled at the time of disposal, the tape member does not separate from the adhesive portion and breaks, or the adhesive portion of the adhesive portion adheres to the tape member and the slip-preventing effect on the underwear cannot be exhibited. It is possible to maintain the function of the tape member and the function of the adhesive part.

In such an absorbent article manufacturing method, in the adhesive portion arranging step, at least a part of the release sheet may be disposed in a region overlapping the tape member in the thickness direction.

Since the tape member is covered with the release sheet, the tape member can be protected by the release sheet during manufacture, and unintentional curling or folding of the tape member can be suppressed. It is possible to suppress the force acting on the tape member in the direction away from the backsheet due to curling of the tape member during conveyance or the like, and to maintain the state in which the tape member is fixed to the backsheet.

In the manufacturing method of such an absorbent article, the tape fixing step includes disposing a non-fixing portion of the tape member located downstream of the fixing portion of the tape member in the conveying direction on the back sheet so as to be spaced apart from the adhesive In the sub-arranging step, it is preferable to dispose the release sheet so as to cover at least a part of the non-fixing portion.

Since the non-fixed part is located on the downstream side in the conveying direction and the fixed part is located on the upstream side in the conveying direction, the non-fixed part is easily rolled up from the fixed part at the time of conveying. However, since the non-fixed portion is covered with the release sheet, it is possible to suppress the non-fixed portion from being rolled up or the non-fixed portion of the tape member fluttering during conveyance. It is possible to suppress the force acting on the tape member in the direction away from the backsheet due to curling of the tape member during conveyance or the like, and to maintain the state in which the tape member is fixed to the backsheet.

In a method for manufacturing such an absorbent article, at least an outer edge of the tape member in the conveying direction is covered with the release sheet, and a length of the tape member in a cross direction perpendicular to the conveying direction is longer than the length of the release sheet in the conveying direction. It is preferable to dispose the release sheet so that the length in the cross direction is long.

By covering the entire width of the tape member with the release sheet, the entire width of the tape member can be protected with the release sheet, and unintentional curling or folding of the tape member can be further suppressed. It is possible to suppress the force acting on the tape member in the direction away from the backsheet due to curling of the tape member during conveyance or the like, and to maintain the state in which the tape member is fixed to the backsheet.

As a method for manufacturing such an absorbent article, the release sheet may be disposed in a region that does not overlap with the tape member in the thickness direction.

Since the tape member is not covered by the release sheet, it is easy for the user to visually recognize the tape member when operating the release sheet. Therefore, when peeling the release sheet, erroneous operation such as pulling the tape member by mistake can be prevented, and the problem of the tape member being peeled from the back sheet before disposal can be prevented. The fixed state of the tape member is maintained until disposal, and the tape member can be used appropriately.

In the manufacturing method of such an absorbent article, in the tape fixing step, it is preferable to dispose a non-fixing portion of the tape member located upstream of the fixing portion of the tape member in the conveying direction on the back sheet so as to be spaced apart from each other. .

Since the fixed part is located on the downstream side in the conveying direction and the non-fixed part is located on the upstream side in the conveying direction, it is difficult for the non-fixed part to roll from the fixed part at the time of conveying. Therefore, it is possible to suppress the force acting on the tape member in the direction away from the backsheet due to curling of the tape member during conveyance or the like. The tape member can remain fixed to the back sheet.

As a method for producing such an absorbent article, it is preferable to have a laminating step of laminating the backsheet and the absorbent body before the tape fixing step.

The absorber is laminated with an absorbent material and has higher rigidity than the backsheet. By laminating the absorber and the backsheet, it is possible to suppress fluttering of the backsheet, which is the fixing point of the tape member. The action of the force in the direction away from the backsheet on the tape member due to flapping of the backsheet is suppressed, so that the tape member is more easily maintained in a fixed state.

In the manufacturing method of such an absorbent article, in the step of fixing the tape, it is preferable to fix the tape member to the backsheet with a bonding force lower than that of the fixing part in the temporary part, which is a part of the non-fixing part.

The absorbent body is laminated with an absorbent material and has a thickness compared to that of the backsheet. When laminating the backsheet and the absorbent body or folding the absorbent article, a force to be pressed in the thickness direction is applied to the absorbent article. At this time, since the fixing portion of the tape member overlaps the absorber, a pressing force in the thickness direction is strong, so that bonding strength between the tape member and the backsheet can be increased. Therefore, the problem of peeling of the tape member from the back sheet at the time of use of the tape member can be suppressed.

In the manufacturing method of such an absorbent article, the laminating step includes laminating the backsheet, the absorbent body, and the topsheet, and bonding the topsheet and the backsheet together at least on the outer periphery of the absorbent article after the laminating step. It is preferred to have an external junction step forming an external junction.

The region in which the outer joint is formed has a top sheet and a back sheet joined thereto, and the rigidity is higher than that of the region in which the outer joint is not formed. By increasing the rigidity of the backsheet to be bonded, flapping of the backsheet at the outer edge where flapping tends to occur during conveyance is suppressed, and the fixed state of the tape member is more easily maintained.

A front-back direction, a width direction orthogonal to the front-back direction, an absorber, a topsheet positioned on the skin-facing surface side of the absorber, a backsheet positioned on the non-skin-facing surface side of the absorber, and a skin ratio of the backsheet A tape member fixed to an opposing surface, an adhesive portion formed on a non-skin facing surface of the backsheet, and a release sheet covering the adhesive portion, wherein at least a part of the release sheet is in a region overlapping the tape member in a thickness direction. A disposed absorbent article.

Since the tape member is covered with the release sheet, the tape member can be protected by the release sheet. Unintentional curling or folding of the tape member before use of the absorbent article can be suppressed. It is easy to keep the tape member fixed to the back sheet.

In this absorbent article, it is preferable that the release sheet covers an end edge of the tape member in the front-back direction, and the length of the release sheet in the width direction is longer than the length of the tape member in the width direction. do.

Since the length of the release sheet in the width direction is longer than the length of the tape member in the width direction, the tape member is protected by the release sheet over the entire width. Unintentional folding or bending of the tape member before use of the absorbent article can be suppressed.

A front-back direction, a width direction orthogonal to the front-back direction, an absorber, a topsheet positioned on the skin-facing surface side of the absorber, a backsheet positioned on the non-skin-facing surface side of the absorber, and a skin ratio of the backsheet a tape member fixed to an opposing surface, an adhesive portion formed on a non-skin facing surface of the backsheet, and a release sheet covering the adhesive portion, wherein the release sheet is disposed in a region that does not overlap with the tape member in a thickness direction, absorbent articles.

Since the tape member is not covered by the release sheet, it is easy for the user to visually recognize the tape member when operating the release sheet. Therefore, when peeling the release sheet, erroneous operation such as pulling the tape member by mistake can be prevented, and the problem of the tape member being peeled from the back sheet before disposal can be prevented. The fixed state of the tape member can be maintained until disposal.

In this absorbent article, it is preferable that the tape member has a fixing portion fixed to the backsheet, and at least a part of the fixing portion overlaps the absorber in the thickness direction.

Since the fixing portion of the tape member is overlapped with the absorber, a pressing force in the thickness direction is strong, and bonding force between the tape member and the backsheet can be increased. Therefore, the problem of peeling of the tape member from the back sheet at the time of use of the tape member can be suppressed.

===About the absorbent article according to the present embodiment===

Hereinafter, a method for manufacturing an absorbent article according to an embodiment will be described with reference to the drawings. In addition, in description of the following drawings, the same or similar code|symbol is attached|subjected to the same or similar part. However, it should be noted that the drawings are schematic and the ratio of each dimension is different from the actual one. Therefore, specific dimensions and the like must be determined in consideration of the following description. Further, even between the drawings, parts having different dimensional relationships or ratios may be included.

Examples of the absorbent article manufactured by the absorbent article manufacturing method include sanitary napkins, panty liners, and absorbent pads. In this embodiment, the manufacturing method of manufacturing a sanitary napkin is demonstrated.

The absorbent article has a front-back direction (L) and a width direction (W). The front-back direction L is a direction extending from the wearer's front side (ventral side) to the rear side (dorsal side), or a direction extending from the wearer's rear side to the front side. The width direction W is a direction orthogonal to the front-back direction L.

The absorbent article (10) has a topsheet (20), a backsheet (22), and an absorbent body (30) between the topsheet (20) and the backsheet (22). The topsheet 20 is disposed on the skin facing surface side T1 of the absorber and faces the wearer's skin during use. The backsheet 22 is disposed on the non-skin facing side T2 of the absorber, and is directed to the side opposite to the wearer's skin during use. The absorbent body 30 extends along the front-rear direction L of the absorbent article 10 .

The absorbent article 10 may have hip flaps 50 . The hip flap 50 is a portion that bulges outward in the width direction W from the outer edge of the absorbent body 30 on the rear side of the absorbent article. On the other hand, the absorbent article may have wings. The wing is folded to the non-skin facing side of the crotch portion of the wearing article during use. The hip flap 50 is a part that bulges in the width direction W at the rear of the wing.

The absorbent article 10 has an excretory orifice facing region R1 that faces the wearer's excretory orifice (for example, the vaginal orifice) during use. The excretory facing region R1 is a region disposed between the wearer's crotch, that is, between the wearer's legs, and corresponds to the region where the absorber 30 exists. On the other hand, in the absorbent article 10 having wings, the excretory facing region R1 is between the wings and corresponds to the region where the absorber 30 exists.

The absorbent article 10 has an adhesive portion 70 formed on the non-skin facing side T2 of the backsheet 22 . The adhesive portion 70 is an area where an adhesive is formed to prevent the absorbent article 10 from slipping relative to the wearable article. The adhesive portion 70 is formed in a region overlapping the absorbent body 30 in the thickness direction T of the absorbent article 10 . The adhesion part 70 extends in the front-back direction L, and may be formed in multiple numbers at intervals in the width direction W.

The adhesive portion 70 is covered with a release sheet 71 . The release sheet 71 protects the adhesive portion 70 so that the adhesive portion 70 is not deteriorated prior to use of the absorbent article 10 . The area of the release sheet 71 is larger than the area of the adhesive portion 70 in order to cover the entire adhesive portion 70 . When the absorbent article is in use, the peeling sheet 71 is peeled off, so that the adhesive portion 70 is exposed, and the absorbent article 10 can be fixed to the wearable article by the adhesive portion 70 .

At least part of the peeling sheet 71 is disposed in a region overlapping the tape member 60 in the thickness direction T. The peeling sheet 71 covers the front edge, which is the edge of the tape member 60 in the front-back direction L. The length of the release sheet 71 in the width direction W is longer than the length of the tape member 60 in the width direction W. The tape member 60 is protected over the entire width by the release sheet, and unintentional folding or bending of the tape member 60 before use of the absorbent article can be suppressed.

On the outer periphery of the absorbent article 10, an outer joint 35 where at least the topsheet 20 and the backsheet 22 are joined is formed. The outer joint portion 35 is formed along the outer edge of the absorbent article 10 .

The absorbent article 10 has a post-processing tape member 60 fixed to the non-skin facing side T2 of the backsheet 22 . The tape member 60 is covered by the absorbent article 10 when viewed from the skin facing surface side T1. The tape member 60 is attached to the adhesive portion 70 while the absorbent article 10 is rolled up, and is used to hold the absorbent article 10 in a folded state after use.

The tape member 60 has a fixing portion 62 fixed to the backsheet 22 and a non-fixing portion 63 spaced apart from the backsheet 22 . The fixing portion 62 is formed on the end edge of the tape member 60 in the longitudinal direction, and is disposed closer to the rear edge 10R of the absorbent article than the non-fixing portion 63 . The longitudinal direction of the tape member 60 of this embodiment follows the front-rear direction L of an absorbent article. The tape member 60 is disposed in a region that does not overlap with the adhesive portion 70 in the thickness direction T. The tape member 60 does not overlap with the adhesive portion 70 and is difficult to come into contact with the adhesive portion 70 before disposal. The tape member 60 is not unintentionally attached to the adhesive portion 70 before disposal, and when the tape member 60 is pulled at the time of disposal, the tape member 60 does not separate from the adhesive portion 70 and breaks, or , It is possible to suppress the problem that the adhesive of the adhesive portion 70 adheres to the tape member 60 and the slip-preventing effect on the underwear cannot be exhibited. Therefore, the function of the tape member 60 and the function of the adhesive portion 70 can be maintained.

At least a part of the non-fixed portion 63 of the tape member 60 is covered with the release sheet 71 . When the user peels off the release sheet 71 when using the absorbent article 10, the entire tape member 60 is exposed. The user can recognize the existence of the tape member 60 when using the absorbent article. After using the absorbent article 10, the user folds the absorbent article 10 in the front-back direction L so that the skin-facing surface side T1 of the absorbent article 10 is on the inside, then holds the non-fixed portion 63, Using the fixing part 62 as the starting point, the non-fixing part 63 is folded toward the rear side. When the non-fixed portion 63 is folded, the skin non-facing surface of the non-fixed portion 63 in a state before folding faces the adhesive portion 70 of the absorbent article in a rolled-up state. By fixing the non-fixing part 63 to the adhesive part 70 by the user, as shown in FIG. 3 , the absorbent article 10 can maintain a rounded state. Here, since bodily fluid such as menstrual blood does not adhere to the tape member 60, a decrease in bonding strength between the tape member 60 and the adhesive portion 70 can be prevented, thereby forming the absorbent article 10 into a small round ball. can be easily maintained. On the other hand, since the absorbent article 10 is rolled with the side to which bodily fluids such as menstrual blood adhered is turned inside, the bodily fluid does not adhere to the surface of the rolled absorbent article 10. In this way, the user can cleanly treat the absorbent article 10 after use.

In addition, the user can place the absorbent article 10 after use in a small, rounded state once on a nearby small space. Accordingly, the user can attach the new absorbent article 10 to a wearable article such as underwear, wear the underwear or clothes, and then dispose of the used absorbent article 10 in a trash can or the like. Further, in a situation where there is no trash can for discarding the absorbent article 10 nearby, the user can carry the small round absorbent article 10 in a bag.

The tape member 60 is configured to be able to extend outward from the outer edge of the absorbent article 10 . In the tape member 60 of this embodiment, when the non-fixed portion 63 is folded from the fixed portion 62 as a starting point, at least a part of the non-fixed portion 63 extends outward from the outer edge of the absorbent article 10. As another example, the tape member may be composed of an elastic sheet. In this case, when the wearer pulls the tape member, the tape member extends outward from the outer edge of the absorbent article 10 .

As another example, the tape member may be composed of a sheet folded in a Z shape. In this case, when the wearer pulls the front end of the tape member, the folded tape member is unfolded, whereby the tape member extends outward from the outer edge of the absorbent article 10 .

In addition, when the absorbent article 10 is in use, the tape member 60 is formed on the non-skin facing side of the backsheet 22 and does not extend outward from the outer edge of the absorbent article 10, so that the tape member 60 The member 60 does not come into direct contact with the wearer's skin. Therefore, a sense of incongruity or discomfort during use can be reduced.

The tape member 60 may be made of any material as long as it can be adhered to the adhesive portion 70 . Preferably, the tape member 60 is made of a material that is more easily adhered to the adhesive portion 70 than the topsheet 20, and a plastic film can be exemplified. The tape member 60 of this embodiment does not need to have an adhesive for fixing the tape member 60 to the back sheet or the like at the time of disposal. As another aspect, the tape member 60 may have an adhesive for fixing the tape member 60 to the adhesive portion 70 or the like.

It is preferable that the adhesive portion 70 is formed on an imaginary line extending the tape member 60 in the front-back direction L. In this way, when the tape member 60 is extended rearward from the trailing edge 10R of the absorbent article and the tape member 60 is straight along the rolled absorbent article 10, the adhesive portion 70 is attached to the tape member 60. ) is attached. Accordingly, the user can easily hold the absorbent article 10 in a rounded state without pulling the tape member 60 obliquely toward the position of the adhesive portion 70 .

Subsequently, a manufacturing method of the absorbent article constituting the absorbent article 10 will be described with reference to FIGS. 4 and 5 . The absorbent article manufacturing method has at least a laminating step (S1), a tape fixing step (S2), an outer bonding step (S3), an adhesive portion arranging step (S4), and a cutting step (S5). The method for manufacturing an absorbent article may include known manufacturing steps such as a step of forming an absorbent body and a step of forming embossing on the absorbent body or the like in addition to the steps described above.

In addition, the present embodiment uses a back surface continuum 22C in which the back sheet 22 is continuous in the front-back direction L and a surface continuum 20C in which the top sheet 20 is continuous in the front-back direction L. . The back continuum 22C constitutes the back sheet 22, and the skin facing surface 23 of the back continuum 22C corresponds to the skin facing surface of the back sheet 22. The surface continuum 20C constitutes the topsheet 20, and the skin facing surface of the surface continuum 20C corresponds to the skin facing surface of the topsheet 20.

In the lamination step S1, the back continuum 22C, the absorber 30 and the surface continuum 20C are laminated to form an article continuum.

Fig. 5 is a cross-sectional view of a continuum of articles schematically showing a tape fixing step (S2) and an adhesive portion arranging step (S4). In the tape fixing step S2, the tape member ( 60) is fixed. In the tape fixing step S2, the tape member 60 is fixed to the back continuum 22C at the fixing portion 62, which is a part of the region where the tape member 60 and the back continuum 22C overlap, and the non-fixing portion 63 ), the tape member 60 is disposed on the back continuum 22C so as to be spaced apart. The non-fixing portion 63 is not bonded to the back sheet 22 and is easy to be grasped by the user when discarding. By holding the non-fixing portion 63, the user mistakenly pulls the fixing portion 62 when operating the tape member 60, and the fixing portion 62 peels off from the backsheet 22, or the tape member 60 ) and the backsheet 22, the weakening of the bonding force can be suppressed. Therefore, the problem that the tape member 60 peels off at the time of disposal can be suppressed.

On the other hand, the fixing portion 62 of the tape member 60 is fixed to the back continuum 22C by, for example, adhesive, embossing, thermal welding, or ultrasonic welding. In this embodiment, before bringing the tape member 60 into contact with the back continuum 22C, an adhesive is applied to the tape member 60, and the fixing portion 62 of the tape member 60 is fixed to the back continuum by the adhesive. Fix to (22C).

The tape fixing step (S2) is executed after the lamination step (S1). The absorber 30 is laminated with absorbent materials, and has higher rigidity than the back surface continuum 22C. By laminating the absorber and the back continuum, it is possible to suppress fluttering of the back continuum, which is the fixing point of the tape member 60. The force in the direction away from the back continuum 22C due to fluttering of the sheet of the back continuum 22C is suppressed from acting on the tape member 60, so that the fixed state of the tape member 60 is more easily maintained.

In the tape fixing step (S2), the non-fixing portion 63 is formed on the downstream side of the fixing portion 62 in the transport direction MD. The non-fixed portion 63 of the tape member 60 is disposed on the back continuum 22C so that it can be spaced apart. On the other hand, the tape fixing step (S2) may be upstream in the conveying direction (MD) from the adhesive portion arranging step (S4), or may be upstream in the conveying direction (MD) from the lamination step (S1).

Subsequently, in the outer edge bonding step S3, an outer edge bonding portion 35 for bonding the top sheet (surface continuum) and the back sheet (rear continuum) is formed on the outer edge of the absorbent article. The outer edge bonding step (S3) may be on the downstream side in the transport direction from the lamination step (S1), or may be on the upstream side in the transport direction (MD) from the tape fixing step (S2), and may be on the transport direction (MD) from the adhesive portion arranging step (S4). ) may be downstream.

The outer joint 35 can be formed by embossing, heat sealing, and ultrasonic welding. The region in which the outer joint portion 35 is formed has a top sheet and a back sheet joined together, and thus has higher rigidity than a region in which no external joint portion is formed. By increasing the rigidity of the backsheet to be bonded, flapping of the backsheet at the outer edge where flapping tends to occur during conveyance is suppressed, and the fixed state of the tape member 60 is more easily maintained.

In addition, in the external bonding step (S3), the external bonding portion 35 is formed so as to overlap at least a part of the fixing portion 62 . Since the back sheet 22 and the tape member 60 can be further joined by the outer joint portion 35, the bonding force between the back sheet 22 and the tape member 60 can be increased.

Subsequently, in the step of arranging the adhesive portion (S4), the adhesive portion 70 for preventing the deviation of the absorbent article 10 from the wearable article is attached to the non-skin facing surface 24 of the back continuous body 22C, and A release sheet 71 covering the portion 70 is formed. The adhesive portion arranging step (S4) may be on the downstream side in the conveying direction from the tape fixing step (S2), may be upstream in the conveying direction (MD) from the lamination step (S1), or may be on the conveying direction (MD) from the outer edge bonding step (S3). ) may be upstream.

The tape member 60, the adhesive portion 70, and the release sheet 71 are all formed on the non-skin facing surface 24 of the back sheet, and may be arranged close to each other. Since the adhesive portion arranging step (S4) is performed after the tape fixing step (S2), even when the release sheet 71 and the tape member 60 overlap due to an adhesion error during manufacturing, the fixing portion 62 of the tape member Overlapping on the temporary peeling sheet 71 can be suppressed. Therefore, when the peeling sheet 71 is peeled off, the peeling of the tape member 60 together with the peeling sheet 71 is prevented, the fixed state of the tape member 60 is maintained until disposal, and the tape member 60 is appropriately removed. ) can be used.

As shown in FIG. 5 , in step S4 of arranging the adhesive portion, at least a part of the peeling sheet 71 is disposed in an area overlapping the tape member 60 in the thickness direction. Since the tape member 60 is covered by the release sheet 71, the tape member 60 can be protected by the release sheet 71 during manufacture, and the tape member 60 is not unintentionally rolled or folded. You can refrain from doing anything. The force acting on the tape member 60 in the direction away from the backsheet due to the curling of the tape member 60 during conveyance or the like can be suppressed, and the state in which the tape member 60 is fixed to the backsheet can be maintained.

In step S4 of arranging the adhesive portion, the release sheet 71 is disposed so as to cover at least a part of the non-fixed portion 63 . Since the non-fixed portion 63 is located downstream of the fixed portion 62 in the transport direction (MD), there is a possibility that the non-fixed portion 63 is rolled around the fixed portion 62 at the time of conveyance. By disposing the peeling sheet 71 so as to cover the non-fixed portion 63, the non-fixed portion 63 is rolled up during conveyance and the non-fixed portion 63 of the tape member 60 is prevented from fluttering.

In the step of arranging the adhesive portion (S4), the adhesive portion 70 is disposed in an area that does not overlap with the tape member 60 in the thickness direction T. In the step of arranging the adhesive part (S4), at least the outer edge of the tape member 60 in the transport direction (MD) is covered with the release sheet 71, and the release sheet ( The release sheet 71 is disposed so that the length of the cross direction CD of 71 is long. By covering the entire width of the tape member 60 with the release sheet 71, the tape member 60 can be protected by the release sheet 71 over the entire width of the tape member 60, and the tape member 60 Unintentional curling or folding can be more suppressed. It is possible to suppress the force acting on the tape member 60 in the direction away from the back continuum 22C due to the curling of the tape member 60 during conveyance, etc., and the tape member 60 can be maintained in a fixed state.

Subsequently, in the cutting step S5, the continuum of articles is cut along the periphery of each absorbent article. By cutting the continuum of articles by the cutting step S5, individual absorbent articles can be obtained. The cutting step (S5) only needs to be on the downstream side in the transport direction (MD) of the lamination step (S1) and the external bonding step (S3), and the transport direction (MD) of the tape fixing step (S2) and the adhesive portion arranging step (S4). It may be upstream.

Subsequently, based on Figs. 6 to 9, a method for manufacturing an absorbent article according to a modified example will be described. Hereinafter, in the description of the modified example, the same reference numerals are used for the same components as those in the above-described embodiment, and descriptions are omitted. FIG. 6 is a rear view of the absorbent article 10A according to Modification Example 1, and FIG. 7 is a cross-sectional view of the absorbent article 10A along line B-B shown in FIG. 8 is a cross-sectional view of a continuum of articles for explaining a tape fixing step (S2) and an adhesive portion arranging step (S4) according to Modification Example 1.

In the adhesive portion arranging step (S4) of the absorbent article manufacturing method according to Modification Example 1, the release sheet 71 is disposed in a region that does not overlap with the tape member 60A in the thickness direction T. The release sheet 71 and the tape member 60A are spaced apart in the front-back direction L. Since the tape member 60 is not covered by the release sheet 71, the user can easily visually recognize the tape member 60A when operating the release sheet 71. Therefore, when peeling off the release sheet 71, erroneous operation such as pulling the tape member 60A by mistake is prevented, and the problem that the tape member 60A is peeled from the back sheet 22 before disposal is prevented. can do. The fixed state of the tape member 60A can be maintained until discarded.

In the tape fixing step (S2), at least a part of the fixing portion 62 of the tape member 60A is formed in a region overlapping the absorber 30 in the thickness direction T. The absorber 30 is laminated with an absorbent material and has a thickness compared to that of the backsheet. When laminating the backsheet and the absorbent body or folding the absorbent article, a force to be pressed in the thickness direction is applied to the absorbent article. At this time, since the fixing portion 62 of the tape member is overlapped with the absorber, a pressing force in the thickness direction is strong, and bonding strength between the tape member 60A and the backsheet can be increased. Therefore, it is possible to suppress the problem that the tape member 60A peels off from the back sheet at the time of use of the tape member.

In the absorbent article manufacturing method according to Modification 1, the absorbent article is conveyed so that the rear edge 10R of the absorbent article is positioned on the upstream side in the conveyance direction MD. In the tape fixing step (S2), the non-fixing part 63 is disposed upstream in the conveyance direction (MD) from the fixing part 62 of the tape member 60A. Since the fixed portion 62 is located downstream of the non-fixed portion 63 in the transport direction (MD), it is difficult for the non-fixed portion 63 to roll from the fixed portion 62 at the time of conveyance. It is possible to suppress the force acting on the tape member 60A in the direction away from the backsheet 22 due to the curling of the tape member 60A during conveyance or the like. The state in which the tape member 60A is fixed to the back sheet 22 can be maintained.

Subsequently, the manufacturing method of the absorbent article according to Modification 2 will be described. 9 is a cross-sectional view of a continuum of articles for explaining a tape fixing step (S2) and an adhesive portion arranging step (S4) according to Modification Example 2. In the tape fixing step (S2) of the absorbent article manufacturing method according to Modification 2, the non-fixing portion 63 of the tape member 60B is located downstream of the fixing portion 62 in the conveying direction MD, the tape member 60B is transported, and the back continuum 22C and the tape member 60B are fixed with a bonding force weaker than that of the fixing portion 62 in the fastening portion 64, which is a part of the non-fixing portion 63. By forming the temporary portion 64, it is possible to suppress the rolling of the non-fixed portion 63 or fluttering of the non-fixed portion 63 of the tape member 60B during conveyance. A state in which the tape member 60B is fixed to the back continuum 22C by suppressing the force acting on the tape member 60B in the direction away from the back sheet 22 due to the curling of the tape member 60B during conveyance or the like. can keep

Since the bonding force of the temporary portion 64 is weaker than that of the fixing portion 62, the user can easily peel off the temporary portion 64 when using the tape member 60B, hold the non-fixing portion 63, and tape the tape member 60B. The member 60B can be manipulated. As the fixing means of the temporary part 64, adhesive, embossing, thermal welding, and ultrasonic welding can be exemplified, and the amount of adhesive applied is smaller than that of the fixing part 62, or the embossing is better than the fixing part 62. The compression can be weakened or reduced. Moreover, the gong part 64 may be comprised by the outer joint part 35.

Bonding force can be measured with a tensile tester (model 5543 manufactured by Instron Japan Co., Ltd.). For example, bonding force is measured as follows. First, the test piece of the tape member and the test piece of the backsheet are fixed to the upper fixing part and the lower fixing part of the tensile tester. The width of the test piece fixed to the upper and lower fixing parts is 10 mm. A fixing surface corresponding to the fixing part 62 is formed between the test piece fixed to the upper fixing part and the test piece fixed to the lower fixing part. The relative displacement speed of the upper fixed part and the lower fixed part of the tensile tester is set to 100 mm/min, and the maximum load point while peeling the bonded part is taken as the bonding force (adhesive strength).

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

On the other hand, in the above-described embodiment, the method for manufacturing the absorbent article in a state where the absorbent articles are lined up in the front-back direction is described, but in another example, the absorbent article may be manufactured in a state where the absorbent article is lined up in the width direction. In this embodiment, the back continuum and the front continuum are used, but the back continuum may be replaced with the back sheet, and the front continuum may be replaced with the top sheet to produce an absorbent article.

In addition, all the contents of Japanese Patent Application No. 2016-250148 filed on December 22, 2016 are incorporated herein by reference.

According to the absorbent article and the manufacturing method of the absorbent article according to the present disclosure, it is possible to provide an absorbent article that can properly use the tape member at the time of disposal while maintaining the fixed state and function of the tape member for post-treatment.

10, 10A: Absorbent article 20: Top sheet
22: back sheet 23: skin facing surface
24: non-skin facing surface 30: absorber
35: external joint 60, 60A, 60B: tape member
62: fixed part 63: non-fixed part
64: temporary part 70: adhesive part
71: release sheet S1: lamination step
S2: tape fixing step S3: external bonding step
S4: adhesive part arrangement step S5: cutting step

Claims (14)

A tape member for post-processing having an absorber, a topsheet positioned on the skin-facing surface side of the absorber, a backsheet positioned on the non-skin-facing surface side of the absorber, and a fixing portion fixed to the backsheet; A method for manufacturing an absorbent article comprising an adhesive portion formed on a sheet and a release sheet covering the adhesive portion, comprising:
a tape fixing step of fixing the fixing portion of the tape member on the back sheet;
After the tape fixing step, an adhesive portion arranging step of disposing the adhesive portion and the release sheet on the non-skin facing side of the back sheet,
In the step of arranging the adhesive portion, the adhesive portion is disposed in a region that does not overlap with the tape member in the thickness direction;
In the step of arranging the adhesive portion, at least a portion of the release sheet is disposed in a region overlapping the tape member in a thickness direction. The method of claim 1 , wherein the step of fixing the tape comprises disposing a non-fixing portion of the tape member positioned downstream of the fixing portion of the tape member in a conveying direction on the back sheet so as to be spaced apart from each other;
In the step of arranging the adhesive portion, the release sheet is disposed so as to cover at least a portion of the non-fixing portion. The method according to claim 1 or 2, wherein the step of arranging the adhesive portion includes covering at least an outer edge of the tape member in the conveying direction with the release sheet and crossing the tape member in a crossing direction orthogonal to the conveying direction. and disposing the release sheet so that the length of the release sheet in the cross direction is longer than the length of the release sheet. The absorbent article manufacturing method according to claim 1 or 2, further comprising a laminating step of laminating the backsheet and the absorbent body before the tape fixing step. The method of manufacturing an absorbent article according to claim 4, wherein, in the step of fixing the tape, at least a part of the fixing part is formed in a region overlapping the absorber in a thickness direction. The method of claim 4, wherein the laminating step comprises laminating the backsheet, the absorbent body, and the topsheet;
An absorbent article manufacturing method comprising, after the lamination step, an outer joining step of forming an outer joining portion for joining at least the topsheet and the backsheet on the outer periphery of the absorbent article. forward and backward directions,
A width direction orthogonal to the front-back direction;
absorber,
a topsheet positioned on the skin facing side of the absorber;
a back sheet positioned on the non-skin facing side of the absorber;
a tape member fixed to the non-skin facing surface of the back sheet;
An adhesive portion formed on the non-skin facing surface of the back sheet;
a release sheet covering the adhesive portion;
The absorbent article of claim 1 , wherein at least a part of the release sheet is disposed in a region overlapping the tape member in a thickness direction. The method according to claim 7, wherein the release sheet covers an end edge of the tape member in the front-back direction,
The absorbent article, wherein the length of the release sheet in the width direction is longer than the length of the tape member in the width direction. delete delete delete delete delete delete

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