JP5638315B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article provided with a fastening tape, and more particularly to a technique for enabling easy deployment of a temporarily secured fastening tape.

  A so-called open-type disposable in which a fastening tape having an adhesive material (for example, a hook-and-loop fastener made of hook material) is provided as an absorbent article on the left and right of the back side portion applied to the back of the wearer as an absorbent article. Diapers are known. In such a disposable diaper, the back side part and the abdominal side part applied to a wearer's abdominal part are connected via a fastening tape so that adjustment is possible according to a wearer's body shape. Such a disposable diaper is disclosed in Patent Document 1, for example.

  In the disposable diaper of patent document 1, the hook-and-loop fastener part which consists of a male member is folded by the top sheet side (diaper inner surface) at the time of manufacture, and when this male member is pressed, it temporarily temporarily places on a specific place. It is fastened.

  When a male member (for example, a hook material) is engaged with another non-woven fabric portion of the diaper main body during the manufacture of the disposable diaper, the hook material and the non-woven fabric are destroyed, and as a result, the yield may be reduced. Therefore, Patent Document 1 attempts to suppress a decrease in yield by temporarily fastening a fastening tape to a specific place.

JP 2009-240679 A

  By the way, in the conventional temporarily fixed fastening tape, when using a disposable diaper, the operation | work which peels from a main-body part and expand | deploys outside is required. Therefore, in order to improve the convenience of the disposable diaper, it is desirable that the fastening tape is configured so that it can be peeled off quickly.

  Here, for example, by weakening the adhesive force of the fastening tape, the temporarily fastened fastening tape can be easily peeled off. However, this weakens the fastening function of the fastening tape, which may cause a problem that the disposable diaper is easily removed. Therefore, there is a demand for easily deploying a temporarily secured fastening tape without impairing the original function.

  This invention is made | formed in view of such a subject, and it aims at providing the technique which makes it easy to expand | deploy the fastening tape of the absorbent article temporarily fastened.

In order to solve the above problems, the first aspect is configured by connecting, along the longitudinal direction, an abdominal side part applied to the abdomen, a crotch part applied to the crotch, and a dorsal side part applied to the back. In an absorbent article comprising a main body portion and an absorbent body that is provided in the crotch portion and absorbs bodily fluid excreted outside the body, the absorbent article is provided on the back side portion and can be fastened to the abdominal side portion. The fastening tape further comprises a sheet-like member , a strip- like tab extending outward from the sheet-like member, and an attachment that is provided on the tab and adheres to an outer surface of the ventral side portion. has a timber, wherein the attachment member further includes a, which is separated into a proximal end attached material proximal to the distal side of the distal end attachment member and the tip attachment member, said tab, The main body with a crease provided between the distal end adhering material and the proximal end adhering material as a boundary Of are folded to the back side portion than the width direction perpendicular to the longitudinal direction an inner, is fixed relative to the main body through the front end attachment member.

The second aspect, in the absorbent article according to the first aspect, on one side of said sheet-like member, the adhesive surface for adhering to the back side is provided, said sheet-like member The tab extends outward from the other side end of the sheet, and the tab is fixed by being attached to the sheet-like member in the folded state.

  Further, the third aspect is the absorbent article according to the first or second aspect, wherein the tab has a shape that narrows from the proximal end to the distal end, and the distal end portion ahead of the fold is It is folded to fit within the width of the remaining proximal end.

  According to a fourth aspect, in the absorbent article according to any one of the first to third aspects, the fold is provided in the vicinity of the proximal end adhering material.

  Moreover, a 5th aspect is an absorbent article which concerns on any one aspect from the 1st to the 4th aspect, The said fastening tape has two or more said tabs folded by the said back side part side. Yes.

  According to the absorbent article which concerns on the aspect from 1st to 5th, a tab can form a loop structure because the tab is being fixed with the tip adhesion material. Furthermore, by folding the tip of the tab of the fastening tape to the dorsal side, the loop structure of the tab of the fastening tape far from the helper on the lower body side of the wearer is It opens to the side. Thereby, since it becomes easy for an assistant to insert a finger into a loop structure, there can exist an effect that it becomes easy to open | release the tab of the temporarily fixed fastening tape. Moreover, by providing a crease at a position between the distal end adhering material and the proximal end adhering material, it becomes easier to form the crease and the tab can be easily folded. Also, by forming a crease on the tip end side of the tab than the base end adhering material, it is possible to suppress the setting of the crease beyond the base end (base) of the tab, and the periphery of the fastening tape is deformed to an unexpected shape. The effect that it can suppress that it will do can be show | played.

  In particular, according to the absorbent article which concerns on a 2nd aspect, by folding a tab to the back side part side rather than the width direction, a wider adhesive surface can be ensured by a sheet-like member than when folding in the width direction. It can have the effect.

  Particularly, according to the absorbent article according to the third aspect, since the folded portion is folded so as not to protrude from the tab, the area of the tab protruding from the main body portion is reduced. Thereby, the outstanding effect that it can reduce that an absorbent article is caught in a manufacturing apparatus etc. in the part of a tab can be show | played.

  In particular, according to the absorbent article which concerns on a 4th aspect, there can exist an effect that the protrusion part of a tab can be made small.

  In particular, according to the absorbent article according to the fifth aspect, the crotch part, the abdominal part, and the waist part can be appropriately pressed against the wearer using a plurality of tabs. Can be attached.

It is a perspective view showing the whole absorptive article concerning an embodiment. It is a top view which expand | deploys and shows an absorbent article. It is a schematic sectional drawing when cut | disconnecting in the surface perpendicular | vertical to the longitudinal direction of an absorbent article in the III-III position shown in FIG. It is a top view which shows a fastening tape. It is a top view which shows notionally that a caregiver 61 makes the wear target person 62 wear the absorbent article 100. FIG. It is a perspective view which expands and shows the fastening tape 4 provided with the tab 42 temporarily fixed.

  Hereinafter, embodiments will be described in detail with reference to the drawings. However, the constituent elements described in this embodiment are merely examples, and are not intended to limit the scope of the present invention only to them.

<1. Embodiment>
FIG. 1 is a perspective view showing the entire absorbent article 100 according to the embodiment. FIG. 2 is a plan view showing the absorbent article 100 in an expanded state. Further, FIG. 3 is a schematic cross-sectional view showing a cross section when cut along a plane perpendicular to the longitudinal direction of the absorbent article 100 at the position III-III shown in FIG.

  In the absorbent article 100, the front-rear direction corresponds to the longitudinal direction of the absorbent article 100 when the wearer's abdomen side is the front side and the back side is the rear side based on the worn state. In the present application, the longitudinal direction of the absorbent article 100 is defined as the Y-axis direction, and the width direction of the absorbent article 100 orthogonal to the longitudinal direction is defined as the X-axis direction.

  As shown in FIGS. 1 and 2, the absorbent article 100 includes a crotch portion 1 applied to the wearer's crotch, and a ventral portion 2 extending to the front side of the crotch portion 1 and applied to the wearer's abdomen. And a back side portion 3 that extends to the back side of the crotch portion 1 and is applied to the back portion of the wearer. The crotch portion 1, the ventral side portion 2, and the back side portion 3 constitute a main body portion of the absorbent article 100. In addition, a fastening tape 4 that can be fastened to a fastened portion 21 provided on the abdominal side 2 is provided at both ends of the back side 3 in the X-axis direction.

  The absorbent article 100 is attached to the lower half of the wearer in the unfolded state, and is provided on an exterior portion (specifically, a backsheet 51 described later) of the abdominal side 2 as shown in FIG. By attaching and fixing the fastening tape 4 to the to-be-fixed part 21, the abdominal side part 2 and the back side part 3 are connected cyclically | annularly, and form a pants type. Thus, the absorbent article 100 is comprised as what is called an open-type disposable paper diaper.

  As shown in FIG. 2, the crotch portion 1 is preferably notched in a curved shape on both sides so that the crotch portion 1 is gradually thinner toward the center. This notch forms an opening around the leg into which the wearer's leg is inserted when the back side 3 and the abdomen 2 are connected by the fastening tape 4.

  As shown in FIG. 3, the absorbent article 100 is a layer formed by a liquid-impermeable back sheet 51, a liquid-permeable top sheet 52, and an absorbent body 53 sandwiched between these sheets. It has a structure. The top sheet 52 is disposed so as to face the wearer's skin, and transmits body fluid (excrement such as urine) at least under normal temperature and normal pressure. The body fluid that has passed through the top sheet 52 is absorbed and held by the absorber 53. The back sheet 51 prevents excrement from leaking to the outside and prevents clothes and the like from becoming dirty.

  The back sheet 51 is made of, for example, a water-repellent nonwoven fabric using hydrophobic fibers (polypropylene, polyethylene, polyester, polyamide, nylon, etc.). In addition, the back sheet 51 may be comprised with the plastic film, and may be comprised with the highly flexible nonwoven fabric stuck on the plastic film and the outer side.

  The top sheet 52 is composed of a nonwoven fabric using hydrophilic fibers (cellulose, rayon, cotton, etc.), for example. The top sheet 52 may be made of a non-woven fabric that is made liquid permeable by treating the surface of hydrophobic fibers (polypropylene, polyethylene, polyester, polyamide, nylon, etc.) with a surfactant.

  The absorber 53 is configured by, for example, a granular polymer absorber (SAP). The absorbent body 53 has a polymer absorbent body fixed to the inner side surface of the back sheet 51 via an adhesive, and a liquid-permeable auxiliary sheet (not shown) covering the polymer absorbent body on the inner side. Is provided. The polymer absorber is held between the back sheet 51 and the auxiliary sheet in a substantially sheet-like distributed state.

  The absorber 53 may be held without using an auxiliary sheet. The absorbent body 53 is a paper sheet such as tissue paper or a liquid-permeable non-woven sheet obtained by mixing a granular polymer absorbent body with an aggregate layer of pulverized hydrophilic fibers such as pulp fibers and cellulose fibers. It may be coated with. However, in order to suppress the bulk of the absorber 53, the absorber 53 may be configured by a polymer absorber that does not have pulp. Moreover, the absorber 53 may be comprised only with the polymer absorber.

  Side sheets 54, 54 extending in the Y axis direction from the ventral side portion 2 to the back side portion 3 are provided at both end portions in the X axis direction of the top sheet 52. The top sheet 52 and the side sheets 54 and 54 are attached via sticking means such as hot melt adhesive, thermal welding, and ultrasonic welding, respectively. The side sheet 54 is composed of the same member as the back sheet 51, and is preferably composed of a member excellent in water repellency such as a plastic film or a water repellent nonwoven fabric. A thread-like elastic member 541 that extends in the Y-axis direction and is fixed in an expanded state is attached to the inner end of the side sheets 54 and 54 in the X-axis direction.

  When the inner ends of the side sheets 54, 54 in the X-axis direction are spread outward, this portion rises toward the skin surface side by the contraction force of the elastic member 541, and the three-dimensional gather 7 is formed (see FIG. 1). When the absorbent article 100 is worn, the solid gather 7 is applied to the buttocks of the person to be worn, so that the excreted body fluid can be prevented from leaking outside the solid gather 7.

  As shown in FIG. 2, a thread-like elastic member 542 for forming a waist gather along the X-axis direction in a portion corresponding to the wearer's waist around the abdomen side portion 2 and the back side portion 3. Is attached in an extended state than the natural length. Due to the expansion and contraction action of the elastic member 542, this portion is in close contact with the wearer's waist.

  In addition, a thread-like elastic member 543 for forming leg gathers is formed on each of the curved portions on both sides of the crotch portion 1 corresponding to the circumference of the leg in a state where the back sheet 51 and the top sheet 52 are stretched from the natural length. It is attached between. Due to the expansion and contraction action of the elastic member 543, the opening around the leg of the absorbent article 100 is in close contact with the leg.

  The fastening tape 4 is provided at the side end portions on both sides (left and right) in the X-axis direction of the back side portion 3. The fastening tape 4 is a base material sheet 41 that is a sheet-like member, and a plurality (two in this case) of strips extending outward from the outer side end of the base material sheet 41 in the X-axis direction (width direction). Tabs 42, 42. The tabs 42 and 42 are provided in parallel in the Y-axis direction. The absorbent article 100 is provided in a state in which the tabs 42 and 42 are folded inside the absorbent article 100 when not in use, as shown in FIG.

  When the absorbent article 100 is worn, the tab 42 on the back side 3 side of the two tabs 42, 42 provided on the left and right fastening tapes 4, 4 is on the lower body side, and the ventral side part These tabs 42 and 42 are fastened to the fastened portion 21 so that the tabs 42 on the two sides are pulled toward the upper body and intersect (or simply approach) each other. Thereby, the crotch part 1, the abdominal side part 2, and the back side part 3 of the absorbent article 100 can be fitted to the crotch, the leg circumference, the waist circumference, etc. according to the wearer's body shape.

  As shown in FIG. 3, the fastening tape 4 is joined by an adhesive means such as hot melt while being sandwiched between the back sheet 51 and the side sheet 54 of the back side portion 3. More specifically, an adhesive surface that adheres to at least one of the back sheet 51 and the side sheet 54 is provided on one side (X-axis direction inner side) of the base sheet 41 of the fastening tape 4. It is joined to the back side part 3 through the bonding surface.

  FIG. 4 is a plan view showing the fastening tape 4. In FIG. 4, the tab 42 on the back side 3 side of the tabs 42, 42 is illustrated as being developed outside the absorbent article 100.

  Of the both surfaces of the tab 42, on the inner surface (that is, the top sheet 52 side) of the absorbent article 100, a distal end adhesive 421 provided on the distal end side and a proximal end adhesive 422 provided on the proximal end side. And. The tip adhering material 421 is provided near the tip of the tab 421, and the tip proximal end adhering material 42 is provided near the base of the tab 42. A crease 42L (folding line) for bending the tab 42 inward is provided between the distal end adhering material 421 and the proximal end adhering material 422. The fold line 42L extends obliquely with respect to the Y-axis direction, and when the tab 42 is bent along the fold line 42L, the tip of the fold line 42L is a back side part from the width direction (X-axis direction) of the absorbent article 100. It is folded towards 3 side. The tab 42 may further be provided with an adhesive material that joins the base material sheet 41 and the adherend 21 in addition to the distal end adhesive material 421 and the proximal end adhesive material 422.

  Here, if the crease is formed so as to straddle the base of the tab 42 (the boundary portion with the base material sheet 41), the tab 42 is folded to the base material sheet 41 and is fixed. The tape 4 may be deformed into an unexpected shape. In the tab 42 according to this embodiment, a proximal end adhering material 422 is provided near the base of the tab 42. The thickness of the portion where the proximal end adhering material 422 is provided is thicker than the other portions, and it is difficult for folds to be formed in this portion. That is, in the present embodiment, the setting of the crease beyond the base of the tab 42 is reduced.

  The distal end adhering material 421 and the proximal end adhering material 422 are configured by laying a hook material over the entire width of the tab 42 along the Y-axis direction. The base sheet 41 and the tab 42 are made of a nonwoven fabric, and are configured so as to be able to be joined to the distal end adhering material 421 and the proximal end adhering material 422. Of course, you may comprise the base material sheet 41 and the tab 42 so that an adhering material can be joined by embossing to the base material sheet 41 and the tab 42. In a state where the tab 42 is bent along the fold line 42L, the distal end adhering material 421 is pressed against the base sheet 41 and the proximal end adhering material 422 is pressed against the tab 42 itself. Thereby, the tab 42 is temporarily fastened and is detachably fixed to the main body of the absorbent article 100.

  The tab 42 preferably has a shape that narrows from the proximal end to the distal end. Further, when the tab 42 is folded, the distal end portion of the tab 42L is folded so as to be within the width W (the length in the Y-axis direction) of the remaining proximal end portion of the tab 42. The width W gradually increases toward the base end side of the tab 42. Of the both sides of the tab 42 extending in the X-axis direction, when the back side 3 side is the side 43a and the abdomen 2 side is the side 43b, in this embodiment, from the crease 42L The tab 42 is folded so that the previous side 43a is along the side 43a closer to the base end side than the fold 42L. Thereby, the front-end | tip of the tab 42 can be folded so that it may approach the back side part 3 as much as possible, without protruding from the tab 42 itself.

  In this way, the area of the tab 42 protruding from the base sheet 41 can be reduced by folding the folded portion of the tab 42 so as not to protrude from the remaining portion of the tab 42. The fold line 42L is preferably unevenly distributed on the proximal end adhering material 422 side, and more preferably provided near the proximal end adhering material 422. Thereby, the protrusion part from the base material sheet 41 of the tab 42 can further be made small. By reducing the protruding portion of the tab 42, it is possible to reduce the tab 42 from being caught by a manufacturing apparatus, a conveying apparatus, or the like, and to improve the manufacturing efficiency of the absorbent article 100.

  Further, the more the direction in which the tab 42 is folded toward the dorsal side 3 side, the more the folded tip end portion is inclined with respect to the X-axis direction, so the length in the X-axis direction becomes shorter. Here, as shown in FIG. 4, if a region on the base sheet 41 where the tab 42 is not overlapped in the Y-axis direction is a blank region 41S, the blank region 41S is formed by folding the tab 42 obliquely. It will be secured more widely. This blank area 41 </ b> S can be used as an adhesive surface for adhering to the side sheet 54. For this reason, enlarging the blank area 41 </ b> S is advantageous when the tab 42 is joined to the side sheet 54.

  FIG. 5 is a plan view conceptually showing how the assistant 61 attaches the absorbent article 100 to the wearer 62. In addition, in FIG. 5, the absorbent article 100 is arrange | positioned at the back side of the wear subject 62 of the supine posture, and the mode when the assistant 61 wears the absorbent article 100 from the lower body side of the wear subject 62 is shown. It is shown.

  As shown in FIG. 5, when the assistant 61 is on the front (abdominal) side of the lower half of the wearer 62, the distal ends of the tabs 42 that are folded inward toward the abdominal side 2 are respectively in the X-axis direction. On the other hand, it is fixed to the upper body side of the wear target person 62. That is, the tip of the tab 42 is fixed on the side opposite to the assistant 61.

  FIG. 6 is an enlarged perspective view showing the fastening tape 4 including the temporarily secured tab 42. In FIG. 6, the fastening tape 4 located farther from the assistant 61 among the left and right fastening tapes 4 and 4 shown in FIG. 5 is illustrated.

  Of the tab 42, a portion between the distal end fastening material 421 and the proximal end fastening material 422 is a non-fixed portion that is not fixed to the base sheet 41 or the tab 42 itself. Therefore, as shown in FIG. 6, a gap 42 </ b> S is created between the base sheet 41 and the tab 42 at this non-fixed portion. Thereby, a loop structure is formed by the base sheet 41 and the tab 42. The caregiver 61 (or the wearer 62) inserts a finger into the gap 42S and pulls or picks the tip of the tab 42, thereby quickly and easily deploying the temporarily fastened tab 42. It is possible to do.

  In particular, in the state shown in FIG. 5, in the tab 42 of the fastening tape 4 located far from the assistant 61, the opening of the loop structure faces the assistant 61 side. For this reason, it is easy for the assistant 61 to insert a finger into the opening formed by the tab 42 that is relatively far away. Therefore, the absorbent article 100 is configured to be easily worn by the assistant 61 with respect to the wearer 62.

  In the absorbent article 100, the assistant 61 who is on the front side of the lower half of the wear target person 62 holds the tab 42 not only when the wear target person 62 is in the supine position but also in the standing position, for example. Can be deployed quickly.

<2. Modification>
Although the embodiment has been described above, the present invention is not limited to the above configuration and can be modified as appropriate.

  For example, in the above embodiment, the adhering material provided on the tab 42 is constituted by a hook-and-loop fastener made of hook material or the like. According to this, since it can be attached and detached repeatedly, it is advantageous in that it can be attached again and again when it is attached. However, a pressure-sensitive adhesive having an adhesive force may be attached to the tab 42 so that it can be adhered to the base sheet 41 or the adherend 21.

  Moreover, in the said embodiment, although the shape of the elastic members 541,542,543 is made into a thread form, it is not restricted to this. Moreover, the number of the elastic members attached to each location can be changed as appropriate.

  Furthermore, each structure demonstrated in the said embodiment and modification can be suitably combined or abbreviate | omitted unless a contradiction arises mutually.

DESCRIPTION OF SYMBOLS 100 Absorbent article 1 Crotch part 2 Abdominal side part 21 Sticking part 3 Back side part 4 Fastening tape 41 Base material sheet 42 Tab 421 Tip adhering material 422 Base end adhering material 42L Fold 43a Side 43b Side 51 Back sheet 52 Top sheet 53 Absorber

Claims (5)

Along the longitudinal direction, a body part configured by connecting an abdominal part applied to the abdomen, a crotch part applied to the crotch, and a dorsal part applied to the back; In an absorbent article comprising an absorbent that absorbs body fluid excreted in
A fastening tape provided on the dorsal side and connected to the ventral side;
The fastening tape is
A sheet-like member;
A strip-shaped tab extending outward from the sheet-like member ;
An adhesive provided on the tab and attached to the outer surface of the ventral side ;
Have
The adhesive material is
Than the tip end of the tip attachment member and the tip attachment member is separated into a proximal attachment member on the proximal side,
The tab is
Folded between the distal end adhering material and the proximal end adhering material as a boundary, the inner side of the main body portion is folded to the back side portion side than the width direction orthogonal to the longitudinal direction. An absorbent article that is fixed to the main body via the tip adhering material. The absorbent article according to claim 1,
On one side of said sheet-like member, the adhesive surface for adhering to the back side is provided, said tab from the side end portion of the other side of the sheet-shaped member extends outwardly,
The said tab is an absorbent article fixed by the said front-end | tip attachment material adhering to the said sheet-like member in the folded state. The absorbent article according to claim 1 or 2,
The said tab has the shape which becomes thin from the base end to the front-end | tip, and is folded so that the front-end | tip part ahead of the said crease may be settled in the width | variety of the remaining base end part. In the absorptive article according to any one of claims 1 to 3,
An absorbent article in which the fold is provided in the vicinity of the proximal end adhering material. In the absorptive article according to any one of claims 1 to 4,
The said fastening tape is an absorbent article which has two or more of the said tabs folded by the said back side part side.

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