TWM583285U - Absorptive goods - Google Patents

Abstract

[Problem] The present invention is to provide an absorbent article which is excellent in adhesion and can at least suppress leakage of excretory fluid from a long-side end in the front region.
[Solution] The absorbent article of the present invention has a press section (5) that integrates at least the surface sheet (2) and the absorber (4) in the front area (A _F ). The press section (5) has: A base point (51) whose long side direction is located on the innermost side, and two press grooves extending from the base point (51) on the outer side in the long side direction and extending toward both outer sides in the wide side direction. (52, 53), the base point (51) does not overlap the central axis (C _L ) extending in the long side direction of the absorbent article, and the distance (L _S ) from the central axis (C _L ) is arranged At a position within 15% of the widthwise length (L _W ) of the absorbent body (4), the two pressing grooves (52, 53) are formed by one pressing groove (52) and the central axis (C). _L ) Crossover is configured.

Description

Absorbent article

This creation is about an absorbent article such as a sanitary napkin, a sanitary pad, and the like.

Because absorbent articles such as sanitary napkins and sanitary pads are worn by the user for a long period of time while touching the intercalated area of the wearer, it is discussed that the wearer will not feel offensive and uncomfortable, and An absorbent article that easily follows the shape of the wearer's body (that is, has excellent fit).

As such an absorbent article, for example, Patent Literature 1 discloses a sanitary napkin, in which a surface sheet, an absorbent core, and an inner sheet are laminated in this order, and the surface is laminated on both sides of the absorbent core. The sheet is joined to the back sheet, respectively, and a first embossment is given from the top sheet to draw a line at both end portions of the absorbent core and a center portion in the front-back direction facing the front-back direction. The sanitary napkin is in At least one of the front end portion and the rear end portion of the absorbent core has a central portion in the wide side direction as a base end, and is provided with a second embossing from the surface sheet, and is drawn from the base end toward the front-back direction and outward. Lines on both sides.
The sanitary napkin disclosed in Patent Document 1 is such that when pressure is applied inward in the broad side direction at the central portion of the front-rear direction of the sanitary napkin, the top sheet of the surface sheet and the core of the absorbent article are pressed from the second pressure. The flower side is leaning toward the center line in the wide side direction, so that the portion sandwiched by the two second embossing in the middle part in the wide side direction including the front-back end portion of the sanitary napkin is protruded toward the wearer side ( That is, it is in a state of a mountain fold when viewed from the surface sheet side), which improves the fit to the wearer.

[Prior technical literature]
[Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2009-082480

[Problems to be solved by creation]

However, the sanitary napkin disclosed in this patent document 1 is used during the installation of the sanitary napkin, because the intermental portion of the wearer and the central region of the sanitary napkin (including the central portion in the front-back direction and The area in the center of the widthwise direction) is opposed to each other. Therefore, when the excretion fluid such as menstrual blood is discharged from the wearer, the excretion liquid easily follows the direction of the long side of the centerline in the widthwise direction of the sanitary napkin. The central axis spreads toward the outer side in the long side direction. Therefore, if the excretion liquid diffused further toward the outer side in the long side direction reaches the base end of the second embossment, it will be further along the second embossment toward the long side. It may spread on the outer side in the direction, and there is a concern that the excretory fluid leaks out from the long end. In addition, since the length of the longitudinal direction of the sanitary napkin in the front region is the same as the length of the longitudinal direction in the rear region, or it is generally formed as follows, the leakage of such excretory fluid is at least at the longitudinal end of the forward region. Will tend to occur easily.

Here, the purpose of the present invention is to provide an absorbent article which is excellent in adhesion and can at least suppress leakage of excretion fluid from the end portion in the longitudinal direction of the front region.

[Means for solving problems]

The aspect of this creation (Aspect 1) is an absorbent article, which has a surface sheet, an inner sheet, and an absorber located between the sheets, and has a long side direction and a wide side direction. The absorbent article is characterized by:
The absorbent article, when viewed in plan, includes a central region opposed to the user's intercalary region at the time of installation, and a forward region adjacent to the front side thereof, and has at least the surface sheet and the absorbent in the forward region. Integrated press section,
The press section includes: a base point located on the innermost side in the long-side direction; and two base points extending from the base point on the outer side in the long-side direction and extending toward both outer sides in the wide-side direction. Squeezing ditch,
The base point does not overlap with the central axis extending in the longitudinal direction of the absorbent article, and the distance from the central axis is disposed within 15% of the length in the width direction of the absorbent body,
The two crushing grooves are arranged so that one of the crushing grooves intersects the central axis.

In this aspect of the absorbent article, the press section in the front region has: a base point located on the innermost side in the long side direction; and a base point located on the outer side of the long side direction from the base point and facing both sides of the wide side direction. The two squeezing grooves extending on the outer side, and the base point are arranged within 15% of the length of the absorber in the widthwise direction because of the distance from the central axis extending toward the long side of the absorbent article. One of the two crushing grooves is arranged so as to intersect the central axis. Therefore, the two crushing grooves (especially the crushing groove that intersects the central axis extending in the longitudinal direction) are used as the bending base point. While the central portion of the widthwise direction in the front area and the central area in the long side direction of the compression grooves is more protruded toward the skin surface side of the wearer than the two compression grooves, the compression grooves are positioned more than two compression grooves. A predetermined portion in the front area on the outer side in the longitudinal direction is easily deformed by standing upright toward the skin surface side of the wearer, and the absorbent article can be closely adhered to the shape of the wearer's body (i.e., the Play excellent fit ).
Furthermore, in this aspect of the absorbent article, the base point of the press section described above does not overlap with the central axis in the longitudinal direction of the absorbent article, and is further arranged as one press groove and the center extending in the longitudinal direction. The axes intersect. Therefore, even if the excretory fluid discharged from the user spreads along the central axis in the longitudinal direction toward the outer side in the longitudinal direction and reaches the press section, the excretory fluid is aligned with one of the central axis in the longitudinal direction. The intersection point of the press ditch is the starting point, and it is oriented in the opposite direction along the one press ditch (that is, in the direction along the one press ditch, with the above-mentioned intersection as the boundary, and from the press section toward the base point of the press section. In a direction away from the base point), making it difficult to reach the long-term end portion of the absorbent article (that is, it is possible to suppress leakage of excretion fluid from the long-term end portion of the absorbent article).
According to the above, the absorbent article of this aspect is excellent in conformability, and at least the leakage of the excretory fluid from the long-side end of the front region can be suppressed.

In another aspect of the present invention (Aspect 2), in the absorbent article of Aspect 1, the press ditch has a plurality of high-pressure press sections having a relatively high density.

Since the absorbent article of this aspect has a plurality of high-pressure pressing sections having a high relative density of the pressing grooves (that is, the depth of the grooves is deep), the high-pressure pressing section can easily function as a bending base point, except that it can easily make a relatively high pressing groove. In addition to the predetermined portion located in the front area on the outer side in the longitudinal direction, the high-pressure press section having a relatively high density absorbs the excretion in the press ditch by a capillary phenomenon in addition to being deformed to stand on the skin surface side of the wearer. Liquid, which promotes the migration of the excretory fluid toward the absorbent body (ie, makes it more difficult for the excretory fluid to reach the long-side end of the absorbent article). Thereby, the absorbent article of this aspect can more surely obtain excellent adhesion, and can make leakage from the end portion in the longitudinal direction less likely to occur.

In another aspect of this creation (Aspect 3), in the absorbent article of Aspect 1 or 2, the angle formed by the pressing groove of the one side and the central axis is 30 ° or more and less than 90 °.

In the absorbent article of this aspect, the angle formed by one of the press grooves and the central axis in the longitudinal direction is 30 ° or more and less than 90 °. Therefore, even if the excretion liquid discharged from the user is along the center of the longitudinal direction The axis diffuses toward the outer side in the long side direction and reaches the press section. The force of the flow toward the outer side in the long side direction of the excretory fluid is weakened at the intersection of the one squeeze groove and the central axis, and the intersection point is allowed. For the boundary, let the flow velocity of the dispersion flow of the excretion liquid which disperse in the opposite direction decrease. Thereby, the absorbent article in this aspect can make the leakage of the excretory liquid from the end portion in the longitudinal direction less likely to occur.

In another aspect of this creation (Aspect 4), in the absorbent article of any of Aspects 1 to 3 above, the two squeezing grooves are on the outer side of the long side direction and face the aforementioned The inner sides in the wide side direction extend to be connected to each other, and have a ring-like outer shape as a whole.

The absorbent article of this aspect has an overall shape of two press grooves, and since the ends of the press grooves do not exist on the outer side in the long side direction, even if discharged from the user, The excretory fluid flows along one of the crushing grooves to the outer side in the longitudinal direction, and the excretory fluid can also be induced into the other squeezing groove connected to the outer side in the longitudinal direction, which makes it difficult to reach the length of the absorbent article. Directional end portion (that is, leakage of excretion liquid from the long-direction end portion of the absorbent article may be less likely to occur).

In another aspect of this creation (Aspect 5), in the absorbent article of Aspect 4, the aforementioned ring-shaped outer shape is a heart-shaped outer shape.

Since the outer shape of the pressing part formed by the two pressing grooves of this aspect is a heart-shaped outer shape, even if the excretion liquid discharged from the user flows along the one pressing groove to the long side The outer side of the direction can also induce the excretory fluid to return to the inner side of the long side toward the inner side of the wide side in the long side direction, and make it more difficult. Reaching the long-side end portion of the absorbent article (that is, leakage of excretion liquid from the long-side end portion may be made less likely to occur).

[Creative effect]

According to the present invention, it is possible to provide an absorbent article which is excellent in conformability and can at least suppress leakage of excretory fluid from a long-side end portion in the front region.

[Form for implementing creative work]

Hereinafter, suitable embodiments of the absorbent article of the present invention will be described in detail with reference to the drawings. In addition, in this specification, without particular attention, only "an object (for example, a sanitary napkin (absorbent article) placed on a horizontal surface in an unfolded state as viewed from the upper side in the vertical direction toward the thickness direction of the object is unfolded." ), Etc. "is called" looking down. " In particular, when the object is an absorbent article, only "viewing the absorbent article in the thickness direction from the skin surface side (that is, the surface sheet side) of the wearer" is referred to as "viewing from the top."

The various directions and the like used in this specification are not particularly concerned as described below.
In this specification, the "long-side direction" means "the direction in which the length of a vertically long object (such as an absorbent article) is long when viewed from the top", and the "wide-side direction" means "the direction in which the object is viewed from the top" The direction in which the length of an elongated object is short (short-side direction) "and" thickness direction "refer to" the vertical direction with respect to the object placed on a horizontal plane in the expanded state ", and such long-side directions , The wide side direction and the thickness direction are mutually orthogonal relationships.
In addition, in this specification, "an axis located in the center of the wide side direction of a vertically long object and extending in the long side direction" is referred to as "the central axis in the long side direction" or "extending in the long side direction.""The central axis in the longitudinal direction of the object that is positioned in the longitudinal direction of the longitudinal object" is called the "central axis in the lateral direction" or "the central axis in the lateral direction" Axis ". In this connection, "the relatively near side with respect to the central axis in the wide side direction in the long side direction of a vertically long object" is referred to as "the inner side in the long side direction", and the "long side object" In the longitudinal direction of the object, the opposite distal side with respect to the central axis in the broad side direction is referred to as "the outer side in the longitudinal direction". Similarly, "in the wide-side direction of a long-length object, the relatively proximal side with respect to the central axis in the long-side direction" is called "inner side of the wide-side direction", and The opposite far side with respect to the central axis in the long side direction in the wide side direction is referred to as "the outer side in the wide side direction".
In the present specification, "the long side of the absorbent article is one side that is relatively close to the abdomen side of the wearer's abdomen when the absorbent article is mounted" as "the front of the absorbent article". "Side" is the "distant side of the absorptive article relative to the abdomen of the user during the installation of the absorptive article in the longitudinal direction of the absorptive article (that is, relatively close to the back of the user) The other side "is called" the rear side of the absorbent article ".
In addition, if there is no particular attention in this specification, in the thickness direction of the absorbent article, the "proximal proximal side with respect to the skin surface of the wearer during the installation of the absorbent article" is referred to as the "skin surface side""When the absorbent article is installed, the opposite distal side with respect to the skin surface of the wearer" is referred to as the "non-skin surface side". As used herein, the term "installation period" refers to a period (period of installation period) during which the absorbent article is installed by the user (that is, a period of time when the absorbent article is in a usable state).

FIG. 1 is a plan view of a sanitary napkin 1 according to an embodiment of the present invention, viewed from the surface sheet side in the thickness direction, and FIG. 2 is a view taken along II of the sanitary napkin 1 in FIG. 1. -An enlarged end view of a cross-section of the line II, FIG. 3 is an enlarged plan view of an important portion surrounded by a line III of the sanitary napkin 1 in FIG. 1. FIG. 4 is a schematic view showing a part of a state in which the sanitary napkin 1 is formed into a boat shape during the use.
As shown in FIG. 1, a sanitary napkin 1 according to an embodiment of the present invention (an example of an "absorbent article" in the present invention). It has a long-side direction L and a wide-side direction W in plan view, and has a longitudinally elongated shape as a whole. More specifically, both end portions of the long-side direction L (that is, the front-side long-side end portions E _L1 and The rear-side long-direction end portion E _L2 ) has a shape protruding in a circular arc toward the outer side in the long-side direction L, and the outer edge of the central portion in the long-side direction L (that is, a sanitary napkin) One of the wide-direction ends E _W1 and the other wide-direction ends E _W2 ) in the wide-side direction W of 1 have a shape protruding toward the outer side of the wide-side direction W in a substantially trapezoidal shape. In addition, in this creation, the external shape of the absorbent article is not limited to such a form, as long as the length in the longitudinal direction L is longer than the width in the longitudinal direction W, it can be used for any purpose. Shape (for example, rectangular, oval, hourglass, etc.).

Furthermore, as shown in FIGS. 1 and 2, the sanitary napkin 1 according to this embodiment is provided with a liquid-permeable surface F ₁ that forms the skin surface side of the sanitary napkin 1 in the thickness direction T. The surface sheet 2, the liquid-impermeable back sheet 3 forming the surface F ₂ on the non-skin surface side of the sanitary napkin 1, and the water-absorbent absorbent 4 located between the two sheets are the main constituent members. In addition, a surface F ₂ on the non-skin surface side of the inner sheet 3 and the absorbent body 4 are repeatedly arranged in the thickness direction T, and the sanitary napkin 1 is fixed to the wearer's undergarment, etc. A clothing fixing adhesive part (not shown) for wearing clothing; and a surface disposed on the non-skin surface side of the clothing fixing adhesive part to protect the release sheet for the clothing fixing adhesive part before use (Not shown) as a constituent member.

Also, the sanitary napkin 1 has a pair of wings 9 and 9 as shown in FIG. 1. The wings are central portions in the longitudinal direction L, and the wide sides of the top sheet 2 and the back sheet 3 are formed. Both ends in the direction W (that is, the wide-direction end E _{W1 on} one side and the wide-direction end E _{W2 on the} other side in the broad-side direction W) are formed toward the outer side of the broad-side direction W. The stepped shape protrudes, and a pair of wings 9 and 9 are provided on the non-skin surface side surface with wings for fixing the pair of wings 9 and 9 to the wearer's clothing. Adhesive part for fixing parts (not shown).

When the sanitary napkin 1 having such a structure is mounted, the above-mentioned peeling sheet is peeled off, and the surface F ₂ of the non-skin side of the sanitary napkin 1 is adhered to the wearer's wear through the adhesive portion for fixing clothes. After the inner surface of the clothing (such as sticking to underwear), the pair of wings 9 and 9 are respectively folded toward the outer side of the wearing clothing, and are attached to the outer surface of the wearing clothing through the wing fixing adhesive portion, and are It is fixed to the wearer's clothing. When the excretion fluid such as menstrual blood is discharged from the user, the excretion fluid is supplied to the surface F ₁ of the skin surface side of the surface sheet 2 in the central region A _C of the sanitary napkin 1 described later, and the surface sheet 2 After moving at least to the non-skin surface side in the thickness direction T while spreading at least in the longitudinal direction L, the absorbent body 4 formed on the non-skin surface side of the surface sheet 2 is absorbed and held.
In addition, the absorbent article having the above-mentioned pair of wings 9 and 9 is not an essential constituent element in the present absorbent article. Therefore, the absorbent article of the present invention may not have such a pair of wings.

As shown in FIG. 1, the sanitary napkin 1 according to this embodiment includes a long-side end portion E _L1 located on the front side of the sanitary napkin 1 and a sanitary napkin 1 in a plan view. The rear-side longitudinal end portion E _L2 , the wide-width end portion E _{W1 located} on one side of the widthwise direction W of the sanitary napkin 1, and the other side of the widthwise direction W of the sanitary napkin 1 width direction side end portion E _W2, Moreover, in the longitudinal direction between the longitudinal direction E _L1 and the rear end portion of the front side of the side end E _L2 having: a loading portion fitted with the crotch and the wearer's opposite (i.e., toward and repackage the excretory opening extending facing position exists) a _C the central region, and the forward side of the central region a _C adjacent to the front region a _F, and the central region and the rear side adjacent to a _C The rear area A _B.

Herein, in this specification, the "central area" refers to the intermediary part of the wearer when the absorbent article is installed, and more specifically, it contains a position facing the excretory opening of the wearer. The extended area corresponds to the type and the use of the absorbent article (specifically, the type of menstrual fluid, urine and other excretory fluids, the age and gender of the target user), and the area is set according to the type of the absorbent article. In addition, such a central region is generally located at a substantially central portion or a forward position in the longitudinal direction of the absorbent article (for example, when the absorbent article has a wing portion, viewed from above, it is close to the wing portion in the wide side direction). When the position of the front side is repeated, when the absorbent article has a narrowed portion that narrows toward the inner side in the wide side direction in the substantially central portion of the long side direction, it is located in the wide side direction and overlaps with the narrowed portion in plan view. The position of the substantially central portion, and when the absorbent article has an oblong outer shape, it is located at the position of the approximately central portion across the central axis in the widthwise direction of the absorbent article). The length in the lengthwise direction is about 1/4 or more of the length in the lengthwise direction. For example, when the absorbent article is a night sanitary napkin, the lengthwise length in the rear area is sufficiently ensured. The length in the direction is set to 1/4 of the total length in the longitudinal direction of the absorbent article.

The sanitary napkin 1 according to the present embodiment has a press section 5 in which the surface sheet 2 and the absorbent body 4 are integrated in the front region A _F as shown in FIGS. 1 to 3. Further, as shown in FIG. 1 and FIG. 3, the press section 5 has a base point 51 located most on the inner side in the longitudinal direction L and an outer side 51 located in the longitudinal direction L from the base point 51, and The two pressing grooves 52 and 53 extending toward both outer sides of the broad side direction W, and the base point 51 do not overlap with the central axis C _L extending in the longitudinal direction L of the sanitary napkin 1 and from the central axis. The distance L _S from C _L is arranged to be within 15% of the length L _W of the absorber 4 in the width direction (that is, the width L _{W of the} absorber 4 is set to 100%, with respect to the length L _{W of the} absorber 4. L is the length of the widthwise direction _{W is} 15% or less arranged). Furthermore, the above-described two grooves 52, 53 press, the press is one of the grooves 52 and the longitudinal center axis direction L C _L intersect.
In addition, the sanitary napkin 1 of the present embodiment also has the same structure in the rear area A _B as the press part 5 in the front area A _F (that is, a structure having the above-mentioned specific base point and two press grooves). Crushing section 6.

As described above, in the sanitary napkin 1 according to the present embodiment, the press section 5 in the front area A _F has the base point 51 located most in the long side direction L on the inner side and the outer side from the base point 51 toward the long side direction L. Two pressing grooves 52, 53 extending sideways and outwardly toward both sides of the wide direction W, and the base point 51 starts from the central axis C _L toward the longitudinal direction L of the sanitary napkin 1 The distance L _S is disposed within 15% of the widthwise length L _W of the absorbent body 4, and because the press groove 52 intersecting one of the two press grooves 52 and 53 intersects the central axis C _L It is arranged so that the two pressing grooves 52 and 53 (especially the pressing groove 52 intersecting with the central axis C _L extending in the longitudinal direction L) are used as the bending base point, and are located more than the two pressing grooves 52 and 53. As shown in FIG. 4, the central portion in the forward direction area A _F and the central area A _C in the longitudinal direction L protrudes toward the skin surface side of the wearer, and it is easy to make it more than 2 The strip pressing grooves 52 and 53 are further positioned in the front area A _F on the outer side in the longitudinal direction L toward the skin surface side of the wearer. It can be deformed on the ground, and the sanitary napkin 1 can be closely adhered to the shape of the wearer's body (that is, excellent fitting property can be exhibited).
In addition, the sanitary napkin 1 of the present embodiment is such that the base point 51 of the press section 5 does not overlap with the central axis C _L extending in the longitudinal direction L of the sanitary napkin 1. Furthermore, one of the press grooves 52 and C _L intersecting the central axis toward the longitudinal direction L extends is configured so that a central axis C _L toward the longitudinal direction even if the liquid waste such as menstrual blood with the longitudinal direction L of the sanitary napkin 1 along the outer side of physiological L It diffuses and reaches the press section 5. The excretion liquid starts from the intersection 52c of the central axis C _L in the longitudinal direction L and one of the press grooves 52, and faces in the opposite direction along the one press groove 52 (that is, in the Along the direction of one of the pressing grooves 52, with the intersection point 52c as a boundary, dispersed in a direction toward the base point 51 of the press section 5 and away from the standing base point 51 of the press section 5), it is difficult to reach the physiological hygiene The longitudinal end portion E _L1 on the front side of the cotton 1 (that is, the leakage of the excretion fluid from the longitudinal end portion E _L1 on the front side of the sanitary napkin 1 can be suppressed).
As described above, the sanitary napkin 1 according to this embodiment is excellent in conformability and can at least suppress leakage of the excretory fluid from the longitudinal end portion E _L1 in the forward region A _F.

In addition, the sanitary napkin 1 of the present embodiment has the same specific base point as the press section 5 of the front area A _F and the press section 6 of two press grooves in the rear area A _B. In the rear region A _{B, the} same effect as that of the above-mentioned press section 5 can be obtained, and leakage of the excretion liquid from the long-side end portion E _L2 of the rear region A _B can also be suppressed.
In addition, since such a press section is provided in the rear area, since the absorbent article created in the present invention is not an essential constituent element, there is less concern that the excretion liquid discharged from the user leaks from the long end in the rear area. In some cases (for example, when the length in the longitudinal direction of the rear region is sufficient to ensure the length), the absorbent article may not have such a press section in the rear region.

Hereinafter, various members constituting the absorbent article of the present invention will be described in more detail using the sanitary napkin 1 according to the embodiment described above.

[Surface sheet]
In the sanitary napkin 1 of the above-mentioned embodiment, the surface sheet 2 is shown in plan view as viewed in plan from the longitudinal end E _L1 on the front side of the sanitary napkin 1 across the rear side as shown in plan view. E _L2 toward the longitudinal end portion extending L exists, and has a width direction from the other side across the width direction of the sanitary napkin one side W 1 of the widthwise direction end portion E _W1 toward the end portion E _W2 The wide-side direction W extends and has a lengthwise external shape similar to the external shape of the sanitary napkin 1. Such a surface sheet 2 is constituted by a liquid-permeable sheet-like member, and as shown in FIG. 2, it is formed in the thickness direction T of the sanitary napkin 1 at a position on the skin surface side, and can be abutted against the packaging. The skin surface of the person (that is, the surface F ₁ on the contact surface side of the sanitary napkin ₁ ).

In this creation, a liquid-permeable sheet-like member that can be used as a surface sheet, as long as it has various characteristics (for example, liquid permeability, skin feel; softness, strength, etc.) that can be used as a surface sheet of an absorbent article. There is no particular limitation. For example, any liquid-permeable sheet-like member such as a nonwoven fabric such as hot air nonwoven fabric, water needle nonwoven fabric, spunbond nonwoven fabric, dot-bonded nonwoven fabric, or porous resin film can be used. In addition, the structure of the sheet-like member that can be used as a surface sheet is not particularly limited. In addition to a flat and non-porous sheet structure, for example, a perforated sheet structure and a concave-convex structure can be used (the cross-sectional shape becomes a wave shape) Uneven structure, ridge and groove structure, etc.). When a non-woven fabric is used as the surface sheet, the type of the constituent fibers is not particularly limited, and examples thereof include: cellulose-based fibers; thermoplastic resin fibers such as olefin-based resins and polyester-based resins subjected to hydrophilization treatment; These fibers can be used alone or in combination of two or more types of fibers.

In addition, the outer shape, various sizes, and basis weight of the surface sheet are not particularly limited as long as they can be used as the surface sheet of the absorbent article, and can be used in accordance with the desired liquid permeability and skin feel; softness; Arbitrary external shapes such as strength, various sizes, basis weights, etc. For example, the thickness of the surface sheet may be in the range of 0.001 mm to 5.0 mm, preferably in the range of 0.01 mm to 3.0 mm, and more preferably in the range of 0.1 mm to 1.0 mm. The basis weight may be in a range of 5 g / m ² to 100 g / m ² , and more preferably, a basis weight in a range of 6 g / m ² to 50 g / m ² may be used.

[Inside sheet]
In the sanitary napkin 1 of the above-mentioned embodiment, as shown in FIG. 1 and FIG. 2, the back sheet 3 of the sanitary napkin 1 crosses the longitudinal end E _{L1 on the} rear side of the sanitary napkin 1 in a plan view. The portion E _L2 extends toward the long side direction L, and has a wide direction end portion E _{W1 that} extends from one side of the wide side direction W of the sanitary napkin 1 across the wide direction end portion E _{W2 of} the other side. The lateral direction W extends and has a longitudinally elongated outer shape similar to the outer shape of the sanitary napkin 1. Such an inner sheet 3 is constituted by a liquid-impermeable sheet-like member, and as shown in FIG. 2, the thickness T of the sanitary napkin 1 is arranged at a position on the non-skin surface side, and is formed relative to the device. The non-contact surface of the user's skin surface (that is, the surface F ₂ on the non-skin surface side of the sanitary napkin 1).

In this creation, a liquid-impermeable sheet-like member that can be used as an inner sheet, as long as it can function as the inner sheet of an absorbent article (that is, to prevent the permeation of excretory fluid such as menstrual blood excluded from the user) So that the excretory fluid does not leak to the wearer's clothing and other functions) there is no particular limitation, for example: any hydrophobic thermoplastic resin fibers (such as polyethylene (PE) can be used) Polyolefin fibers such as polypropylene and polypropylene (PP); Polyester fibers such as polyethylene terephthalate (PET); Various composite fibers such as heart sheath type; etc. Porous or non-porous resin films made of hydrophobic thermoplastic resins such as PE and PP; laminates of non-woven fabrics bonded to this resin film; arbitrary liquids such as laminated nonwovens such as SMS non-woven fabrics are impermeable Sexual lamellar members.

In addition, the outer shape, various sizes, and basis weight of the inner sheet are not particularly limited as long as they can be used as the inner sheet of the absorbent article, and may be any one corresponding to the desired leak-proof performance, air permeability, and strength. Outer shape, various sizes, basis weight, etc.

[Absorber]
In the sanitary napkin 1 according to the above embodiment, as shown in FIG. 1, the absorbent body 4 crosses the central axis C _L in the longitudinal direction L and the central axis C in the broad side W of the sanitary napkin 1 in a plan view. each, respectively, toward the longitudinal direction W L and a broad range extending widthwise direction _{W is} present, and, both end portions of the longitudinal L direction respectively with the longitudinal direction L toward the outer side of the circular arc drawn projecting longitudinal Long profile shape. Such an absorbent body 4 is disposed between the top sheet 2 and the back sheet 3 in the thickness direction T of the sanitary napkin 1 as shown in FIG. 2, and is provided with menstrual blood and the like that can penetrate the top sheet 2. A predetermined water-absorptive and liquid-retaining water-absorptive member which is retained by the excretion liquid is formed.

In this creation, the water-absorbing member that can be used as an absorber is not particularly limited as long as it can absorb and retain at least excretory fluid such as menstrual blood, and any arbitrary water-absorbing member known in the art can be used. As an example of such a water-absorbent member, at least one absorbent core made of an arbitrary water-absorbent material can be covered with a core cladding sheet such as tissue paper having hydrophilicity. Here, as the water-absorbent material constituting the absorbent core, for example, hydrophilic fibers, superabsorbent polymers, and the like, and more specifically, cellulose fibers such as pulverized pulp, cotton, cotton, acetate, etc. Fibers; granules made of a superabsorbent polymer such as a sodium acrylate copolymer; and a mixture of any combination of these.

In addition, the outer shape, various sizes, and basis weights of the absorbent body are not particularly limited as long as they can be used as absorbent users of the absorbent article, and any shape corresponding to desired absorption performance, flexibility, strength, etc. may be adopted. Shape (such as rectangle, oval, hourglass, etc.), various sizes, basis weight, etc.

[Press section]
Further, as shown in FIGS. 1 to 3, the sanitary napkin 1 according to the above embodiment has a pressing portion 5 in the front region A _F that integrates the surface sheet 2 and the absorber 4 in the thickness direction T. The press section 5 has at least a base point 51 located on the innermost side in the long-side direction L and an outer side from the base point 51 in the long-side direction L and extending toward both outer sides of the wide-side direction W. 2 crushing grooves 52,53.
In addition, as described above, the sanitary napkin 1 of the present embodiment has the press section 6 even in the rear area A _B. However, such a press section 6 has the same structure as the press section 5 in the front area A _F , and is therefore omitted. Instructions.

In the sanitary napkin 1 of the present embodiment, as shown in Figs. 1 and 3, the base point 51 of the press portion 5 is a central axis C _L that does not extend in the longitudinal direction L of the sanitary napkin 1 as viewed in plan. repeating, and is configured from the central axis C _L from the distance L _S within 15% of the width direction of the absorbent body 4 in the width direction of the length L _W (i.e., the absorbent body length L _W 4 is set to 100% when, with respect to its widthwise direction length L _W becomes 15% or less) position.
In addition, as shown in FIG. 1 and FIG. 3, the two press grooves 52 and 53 of the press section 5 are viewed from above, and one side of the press groove 52 faces from the base point 51 toward the front side of the long side direction L toward the wide side direction W. One side extends outward (that is, toward the oblique front side between the long-side end portion E _{L1 on} the front side and the wide-side end portion E _W1 on the one side (eg, toward the upper left diagonal side in FIG. 1). ), And is arranged to intersect the above-mentioned central axis C _L , and the other pressing groove 53 is a side from the base point 51 toward the front side of the long side direction L toward the other side of the wide side W (That is, the diagonally forward side (toward the diagonally upper right side in FIG. 1) between the long-direction end portion E _{L1 on} the front side and the wide-direction end portion E _W2 on the other side) is arranged so that Wait for the two press grooves 52 and 53 to extend on the outer side of the long side direction L toward the inner side of the wide side direction W (more specifically, the sides are directed to the inner side of the wide side direction W, respectively, while The curved sides extend toward the inner side in the long-side direction L), and are connected to each other at the connection point 54 so that the whole has a ring-like outer shape.

As described above, the sanitary napkin 1 according to the present embodiment is the pressing section 5 in the front area A _F , and has a base point 51 located on the innermost side in the longitudinal direction L, and an outer portion from the base point 51 in the longitudinal direction L. Two press grooves 52, 53 extending on both sides and extending toward both outer sides in the wide-side direction W, and the base point 51 extends from the central axis C _L toward the longitudinal direction L of the sanitary napkin 1 The raised distance L _S is disposed within 15% of the length L _W of the absorber 4 in the wide-side direction, and one of the two squeeze grooves 52 and 53 is formed in the same direction as the long-side direction L. The central axis C _L is arranged so as to intersect. Therefore, the above-mentioned two pressing grooves 52 and 53 (especially, the pressing groove 52 intersecting with the central axis C _L extending in the longitudinal direction L) are used as the bending base point, and As shown in FIG. 4, the central portions of the wide area direction W in the forward area A _F and the central area A _C which are located on the inner side of the long side direction L than the two press grooves 52 and 53 are directed toward the wearer's side. skin facing side protrusion, so that edges 52, 53 than the two grooves located closer to the press portion within a predetermined area in front of the longitudinal direction L toward the outer side of the a _F Skin facing side of the wearer's raised easily deformed, the sanitary napkin can accurately along the shape of the body 1 against the wearer's apparatus.
Furthermore, in the sanitary napkin 1 of the present embodiment, the base point 51 of the press section 5 does not overlap with the central axis C _L extending in the longitudinal direction L of the sanitary napkin 1, and further, because one of the press grooves 52 a central axis C _L intersecting with the longitudinal direction L extending toward be configured, so that even if the liquid such as menstrual blood is excreted with the longitudinal direction L of the sanitary napkin 1 along the central axis C _L physiological toward the longitudinal direction L of the outward The side spreads and reaches the press section 5. The excretion liquid starts from the intersection 52c of the central axis C _L in the longitudinal direction L and one of the press grooves 52, and faces the opposite direction along the one press groove 52 (i.e., Scattered in the direction along one of the press grooves 52, with the intersection point 52c as a boundary toward the base point 51 of the press section 5 and away from the base point 51 of the press section 5), it is difficult to reach the length of the sanitary napkin 1 Directional end E _L1 .

Thereto, the central axis C L extending toward the longitudinal direction from the base point 51 from the distance L _{S L} (i.e., the distance L _S between the point 51 and the longitudinal center axis direction L C _L), is from the The length of the vertical line from which the base point 51 faces the central axis C _L in the longitudinal direction L. The widthwise length L _W of the absorbent body 4 refers to the widthwise length of the portion of the absorbent body 4 passing through the base point 51 (that is, a straight line parallel to the widthwise direction W of the base point 51 passes through the absorbent body 4. The intersection point of the widthwise end of one side in the widthwise direction W is regarded as the intersection point W ₁ , and a straight line parallel to the widthwise direction W passing through the base point 51 and the other side in the widthwise direction W of the absorbent body 4 When the intersection point at the end in the width direction is taken as the intersection point W ₂ , it is the length between the intersection point W ₁ and the intersection point W ₂ ).

In addition, the above-mentioned action and effect caused by the press section of this creation can be achieved as long as the press section integrates at least the surface sheet and the absorber in the thickness direction and has the above-mentioned specific base point and two press grooves. In the absorbent article of this creation, even if the press section integrates the surface sheet and the absorber in the thickness direction as in the above embodiment, the press section may also integrate the surface sheet, the absorber, and the back sheet in the thickness direction. .

In this work, the two squeezing ditches described above extend from the base point located on the innermost side in the long side direction to the outer side in the long side direction and to the outer sides of both sides in the wide side direction. As long as one of the press grooves is arranged to intersect with the central axis extending in the long-side direction of the absorbent article, as in the above-mentioned embodiment, the overall shape may not have a heart-shaped annular shape.
Therefore, the above-mentioned two squeezing ditches can be set in any arrangement without hindering the effect of this creation. Such an arrangement can be formed into, for example, an arbitrary geometric shape such as a substantially V-shape, a substantially U-shape, a circle, an ellipse, an inverted triangle, a rhombus, a pentagon, a hexagon, or the like; a flower pattern, or an animal pattern And other patterns such as characters, logos, characters, and other design shapes. Among them, the above-mentioned heart shape, circle shape, oval shape, diamond shape, etc. are formed as a whole. The shape of the ring is ideal, and the shape of the heart is particularly desirable.
If the two press grooves extend toward the inner side of the wide side direction from the outer side in the long side direction and are connected to each other to form a circular shape as a whole, there is no press on the outer side of the long side direction. The end of the groove, so the excretion fluid discharged from the user flows along the one press groove to the outer side in the longitudinal direction, and the excretory fluid can be induced to the other side connected to the outer side in the longitudinal direction. One of the press grooves makes it difficult to reach the ends in the longitudinal direction of the absorbent article. In addition, if the two squeezing grooves have a heart-shaped outer shape as a whole, even if the excretion fluid flows along the squeezing grooves to the outer side in the longitudinal direction, the excretory fluid can be caused to be outward in the longitudinal direction The side is directed toward the inner side in the broad side direction, and the side is returned to the inner side in the long side direction (that is, toward the connection point 54 in the sanitary napkin 1 of the embodiment described above) to induce. This makes it more difficult for the excretory fluid to reach the end portion in the longitudinal direction of the absorbent article.

Moreover, in the present creation, it is preferable that the above-mentioned press section forms an angle formed by one press groove and a central axis in the longitudinal direction within a range of 30 ° or more and 90 ° or less. For example, in the sanitary napkin 1 of the embodiment described above, the press section 5 is formed as shown in FIG. 3 to form an angle 52d between the press groove 52 and the central axis C _{L in} the longitudinal direction L of 30 ° or more. Within 90 °. In this way, if the angle formed by one of the press ditch 52 and the central axis C _{L in the} longitudinal direction L is within a range of 30 ° or more and less than 90 °, even if the excretion liquid discharged from the user is along the longitudinal direction The central axis C of _L diffuses toward the outer side of the long side direction L and reaches the above-mentioned press section 5. The force of the flow toward the outer side of the long side direction L of the excretory fluid is in the one press groove 52 and the The intersection point 52c of the central axis C _L is weakened, and the flow velocity of the dispersed flow of the excretion liquid dispersed in the opposite direction is reduced by using the intersection point 52c as a boundary. This makes it easier for the sanitary napkin 1 to cause leakage of the excretion liquid from the front-side long-side end and long-direction end E _L1 .

Here, one of the pressing groove 52 and the longitudinal center axis direction L C _L the angle formed 52d, is shown in FIG., By pressing the groove 52 of the L and the longitudinal center axis C of the plan view is referred _L 3 The minimum angle among the lines T _L of the press grooves 52 at the intersections 52 c and the angle that intersects the central axis C _{L in the} longitudinal direction L.

Moreover, in this creation, it is desirable that the above-mentioned press section has a plurality of high-pressure press sections having a high relative density of the press grooves. For example, in the sanitary napkin 1 of the above-mentioned embodiment, as shown in FIG. 3, the press section 5 is formed in one of the press grooves 52 with a relatively higher pressure than the other parts 52 b in the press groove 52. A plurality of high-pressure press sections 52a. Similarly, in the other pressing groove 53, a plurality of high-pressure pressing portions 53 a are formed that are pressed with a relatively higher pressure than other portions 53 b in the pressing groove 53. The plurality of high-pressure pressing sections 52a and 53a are arranged in a row at predetermined intervals along the directions in which the pressing grooves 52 and 53 extend, as shown in Figs. 1 and 3, respectively, as shown in Figs. 1 and 3. Alternatively, as shown in FIG. 2, the plurality of high-pressure pressing sections 52 a and 53 a in these places are respectively formed in the thickness direction T as deeper portions (that is, portions with higher relative density) than the other portions 52 b and 53 b. .
In this way, if a plurality of high-pressure press sections 52a, 53a having a high relative density (that is, the depth of the groove is deep) are formed in the press grooves 52, 53, the high-press sections 52a, 53a can easily function as a bending base point, so In addition to being able to easily deform a predetermined portion of the forward region located on the outer side of the longer side L than the pressing grooves 52 and 53 toward the skin surface side of the wearer, the high-density press The capillaries 52a and 53a are susceptible to capillarity. Therefore, the excretion fluid in the squeezing grooves 52 and 53 is absorbed in a point shape, and the migration of the excretion fluid toward the absorbent body 4 can be promoted (that is, the excrement fluid can be more difficult to reach the sanitary napkin The long-side end portion E _L1 on the front side of 1). Thereby, the sanitary napkin 1 according to this embodiment can more surely obtain excellent bonding properties, and can make leakage from the front-side longitudinal end portion E _L1 less likely to occur.

In addition, in the above-mentioned embodiment, as shown in FIG. 3, the high-pressure press sections 52a and 53a in the press ditch 52 and 53 are formed by a substantially circular point shape in plan view. The shape of the high-pressure press section is not particularly limited, and the high-pressure press section may be formed of any geometric shape such as an elliptical shape, a triangular shape, a rectangular shape such as a square, a rhombus, and the like when viewed from above. The size of the high-pressure press section is not particularly limited. Even if the high-pressure press section is formed of a width, diameter, and the like smaller than the width of the groove of the press groove as in the embodiment described above, it can also be formed by the grooves of the press section. It is formed by the wide width and diameter of the same size.

Also, in this creation, there is no particular limitation on the formation method of the press ditch to the press section. For example, by using a protrusion provided with a press ditch formation (when a high-pressure press section is also formed, it is provided with a protrusion for press ditch formation. (Higher protrusion than the protrusion for forming the press groove.) The heated or non-heated embossing means presses the laminate of the surface sheet and the absorber from the skin surface side of the surface sheet toward the thickness direction, or The laminate of the surface sheet, the absorber and the inner sheet can form the above-mentioned pressing groove to the high-pressure pressing part.

(Pressing ditch on the long side)
The sanitary napkin 1 according to the embodiment described above has a pair of first long-side pressing grooves 7 and 7 and a pair of second long-side pressing grooves 8 as shown in FIG. 1 as viewed in plan. , 8, the pair of first longitudinal compression grooves 7, 7 are centered on the central axis C _L in the longitudinal direction _L as the target axis, and are two symmetrically positioned on the central axis C _L in a line-symmetrical (left-right symmetrical) manner. Side, and extends from the front area A _{F of the} sanitary napkin 1 across the central area A _{C to} the long side direction L, and the second long side pressing grooves 8 and 8 of the pair are located at the first side of the pair. 1 Press the rear side of each of the grooves 7 and 7 in the long-side direction and cross the rear region A _B from the central area A _{C of the} sanitary napkin 1 to a shorter length than the first long-side direction of the grooves 7 and 7. Exists in the longitudinal direction L. In addition, even in the first long-side direction crushing grooves 7, 7 and the second long-side direction crushing grooves 8, 8, a plurality of heights similar to the above-mentioned pressing grooves 52, 53 are formed in each of the pressing grooves. Pressing section.

Having such a long-side squeeze groove is an essential component of the absorbent article created in this work, and if the absorbent article has such a long-side squeeze groove, even menstrual blood discharged from the wearer, etc. The excretion fluid diffuses toward the outer side of the wide side of the absorbent article, and the excretion fluid diffuses toward the longer side while blocking the flow in the broad side direction of the excretion liquid by pressing the ditch in the longitudinal direction. In addition to suppressing the leakage of the excretory fluid from the end in the wide direction of the absorbent article, the excretory fluid can be absorbed in a wide area in the long side direction of the absorbent article (specifically, the absorbent body). The absorption performance of the absorbent body is utilized efficiently. Furthermore, if the absorbent article has such a long-side pressing groove, the long-side pressing groove becomes a bending base point, and the absorbent article is easily deformed into a substantially W-shaped cross-sectional shape along the wide-side direction (see (Figure 4). Therefore, even when the absorbent article is installed, the central portion having the widthwise direction of the absorbent article protrudes toward the skin surface side of the wearer, so that it is easy to closely fit the wearer's intercondylar area (also That is, the advantage of further improving the fit. In addition, if the absorbent article is deformed in a substantially W-shape in this way, the excretion liquid discharged from the user usually spreads along the central axis extending in the longitudinal direction of the absorbent article to the outer side in the longitudinal direction. However, even in this case, because the absorbent article of the present invention has the above-mentioned specific pressing portion, the excretory liquid does not easily reach the end portion in the long side direction of the absorbent article, and the excretion from the end portion in the long side direction can be suppressed. Liquid leak.

In addition, as for the long-side pressing groove, as described in the above-mentioned embodiment, if a pair of first long-side pressing grooves and a pair of rear sides of each of the pair of first long-side pressing grooves are located The second long-side compression groove is configured so that the portion with low rigidity between the first long-side compression groove and the second long-side compression groove is easily bent, so that the absorbent article can be placed along the wearer's The body shape is deformed so as to achieve a further excellent fit.

In addition, the shape of the pressing groove in the longitudinal direction as viewed from above is not particularly limited as long as it does not hinder the effect of the creation. In addition to a combination of curved shapes such as the above-mentioned embodiment (see FIG. 1), a linear, double Arbitrary plan view shapes such as a line shape, a dotted line shape, and a zigzag shape.

In addition, in this creation, the method for manufacturing an absorbent article using the above-mentioned various members is not particularly limited, and any manufacturing method known in the art can be adopted.
For example, the sanitary napkin 1 of the embodiment described above is obtained by joining the surface sheet 2 and the absorber 4 to each other by any bonding means (such as a hot-melt adhesive) to obtain a laminate, and then the thickness is from the surface sheet side toward the thickness. A predetermined portion (at least a predetermined portion of the area that becomes the front area) of the laminate is pressed in the direction to form the above-mentioned specific press portion, and the surface of the absorber side of the layered body forming the press portion is formed by any bonding means. (For example, a hot-melt adhesive, a hot-melt bonding method, etc.) By bonding the inner sheet, the above-mentioned sanitary napkin 1 can be manufactured.

In addition to the sanitary napkin according to the embodiment described above, the present invention is applicable to various absorbent articles such as sanitary pads. In addition, the absorbent article of this creation is not limited by the above-mentioned implementation form, etc., and can be appropriately combined, substituted, changed, etc. within a range that does not deviate from the purpose and purpose of this creation. In addition, in this specification, the ordinal numbers such as "first" and "second" are used to distinguish the items to which the ordinal number is assigned, rather than to indicate the order, priority, and importance of each item.

1‧‧‧ sanitary napkin (an example of an "absorbent article")

2‧‧‧ surface sheet

3‧‧‧ inside sheet

4‧‧‧ Absorber

5‧‧‧pressing department

51‧‧‧basis

52‧‧‧ side of the ditch

53‧‧‧Squeezing ditch on the other side

6‧‧‧Press section (rear area)

7‧‧‧ 1st long side squeezing ditch

8‧‧‧Second long side squeezing ditch

9‧‧‧ wings

A _F ‧‧‧ front area

A _C ‧‧‧Central Area

A _B ‧‧‧Rear area

E _L1 ‧‧‧Front end

F ₁ ‧‧‧ Surface of contact surface side of sanitary napkin

54‧‧‧Link

E _W1 ‧‧‧ Wide end in one side

E _W2 ‧‧‧ Wide end on the other side

C _L ‧‧‧ central axis

E _L2 ‧‧‧ rear side long end

L‧‧‧long side direction

W‧‧‧ Wide side direction

FIG. 1 is a plan view of the sanitary napkin 1 according to an embodiment of the present invention, as viewed from the surface sheet side in the thickness direction in an unfolded state.
FIG. 2 is an enlarged end view of a cross section taken along a line II-II of the sanitary napkin 1 in FIG. 1.
FIG. 3 is an enlarged plan view of important portions enclosed by the line III of the sanitary napkin 1 in FIG. 1.
FIG. 4 is a schematic diagram showing a part of a state in which the sanitary napkin 1 is changed into a boat shape during the use.

Claims (5)

An absorbent article is provided with a surface sheet, an inner sheet, and an absorbent body located between the sheets, and has a long side direction and a wide side direction. The absorbent article is characterized by:
The absorbent article, when viewed in plan, includes a central region opposed to the user's intercalary region at the time of installation, and a forward region adjacent to the front side thereof, and has at least the surface sheet and the absorbent in the forward region. Integrated press section,
The press section includes: a base point located on the innermost side in the long-side direction; and two base points extending from the base point on the outer side in the long-side direction and extending toward both outer sides in the wide-side direction. Squeezing ditch,
The base point does not overlap with the central axis extending in the longitudinal direction of the absorbent article, and the distance from the central axis is disposed within 15% of the length in the width direction of the absorbent body,
The two crushing grooves are arranged so that one of the crushing grooves intersects the central axis. The absorbent article according to item 1 of the patent application scope, wherein the press ditch has a plurality of high-pressure press sections having a high relative density. In the absorbent article according to item 1 or 2 of the patent application scope, an angle formed by the press groove of the one side and the central axis is 30 ° or more and less than 90 °. The absorbent article according to item 1 of the scope of patent application, wherein the two crushing grooves are connected to each other on the outer side in the long side direction and toward the inner side in the wide side direction, and are integrated as a whole. Ring shape. The absorbent article according to item 4 of the scope of patent application, wherein the annular outer shape is a heart-shaped outer shape.