CN110139633A - Absorbent commodity - Google Patents

Abstract

Absorbent commodity (1) has the absorber (10) of cushion, which has water imbibition.It is provided with the press section (40) of channel-shaped on the absorber (10), is extruded from across with length direction and width direction both sides when looking down；Portion (50) are followed with the one or more for improving the fitness for being directed to user, are extended across with press section (40) when looking down.For example, following the low rigid portion that portion (50) have rigidity lower than other regions, this is followed portion (50) and is configured in the defined position imagined and can bent in user's wearing.

Description

absorbent article

technical field

This application relates to absorbent articles such as disposable diapers and sanitary napkins.

Background technique

Conventionally, there is known an absorbent article provided with an absorbent body which connects the abdomen side and the back side of the user when the absorbent article is worn, and which extends in the longitudinal direction. In this absorbent article, moisture such as urine and menstrual blood excreted from the user is absorbed by the absorbent body. In recent absorbent articles, it has been proposed to provide an absorber with lattice-shaped grooves intersecting both the longitudinal direction and the width direction in order to improve the fit to the user (see Patent Document 1).

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2014-198113

Contents of the invention

The problem to be solved by the invention

However, although the absorbent article provided with the above-mentioned grooves in the absorber is easy to bend in the direction where the grooves serve as creases, it is difficult to bend in other directions, which may result in a decrease in fit for the user. Therefore, there is still room for improvement in terms of improving the user's comfort.

This application was made in view of the above-mentioned subject, and one of the objects is to improve the comfort of the user who wears an absorbent article. In addition, it is not limited to the purpose described here, and it is also possible to achieve actions and effects derived from each configuration shown in the "Detailed Embodiments" described later, that is, actions and effects that cannot be obtained in the prior art. As other purposes of this application.

means to solve the problem

The absorbent article disclosed here has a pad-shaped absorbent body which has water absorption properties. The absorber is provided with: a groove-shaped pressed portion that is pressed to intersect both the longitudinal direction and the width direction in a plan view; One or more trailing portions for improving the fit to the user.

The effect of the invention

According to the present invention, the comfort of the user wearing the absorbent article can be improved.

Description of drawings

Fig. 1 is a developed view of a disposable diaper (absorbent article) according to a first embodiment.

Fig. 2 is a sectional view taken along the A-A arrow in Fig. 1 . In addition, in FIG. 2, in order to understand each structure easily, the thickness of each sheet|seat is exaggeratedly shown.

Fig. 3 is a plan view showing an absorber of the disposable diaper according to the first embodiment.

Fig. 4 is a plan view showing an absorber of a disposable diaper according to a second embodiment.

Fig. 5 is a plan view showing main parts of an absorber of a paper diaper according to a third embodiment.

Fig. 6 is an enlarged cross-sectional view schematically showing a main part of a top sheet (sheet) of a paper diaper according to a third embodiment.

Detailed ways

Next, an embodiment for carrying out the present application will be described. The following embodiments are merely examples, and are not intended to exclude various modifications and technical applications not explicitly described in the present embodiments. Each structure of this embodiment can be variously modified and implemented in the range which does not deviate from the summary. In addition, selection can be carried out as necessary, and they can also be combined appropriately.

The absorbent article described in the embodiment is a hygiene article worn by a user to absorb and hold moisture in liquid such as urine or menstrual blood excreted from the user. In this absorbent article, in addition to absorbent articles having an absorbent body such as belt-type and underpants-type paper diapers (so-called "disposable diapers"), urine pads, sanitary napkins, and panty liners are also included. Such an absorbent article or the like having only an absorber. In the following embodiments, a pants-type paper diaper is exemplified as an absorbent article.

In this embodiment, the direction which connects the front body part arrange|positioned to oppose a user's abdomen, and the back body part arrange|positioned to oppose a back is a longitudinal direction in a paper diaper. The crotch part arranged in the crotch of the user (disposed to face the crotch space) is located between the above-mentioned front body part and the back body part (the center in the longitudinal direction). In addition, in the state where the user is wearing the diaper (hereinafter simply referred to as "wearing state"), the side (inside) facing the user's skin is defined as the skin side, and the side opposite to the skin side ( The outer side) is called the non-skin side. And let the direction which connects the skin side and the non-skin side be the thickness direction, and let the direction orthogonal to both the longitudinal direction and the thickness direction be the width direction. In addition, the observation from the thickness direction was made into planar view.

The orientation of each structure in the paper diaper includes not only parallel to the longitudinal direction but also substantially parallel to the longitudinal direction when expressed as being along the longitudinal direction, for example. Specifically, a case extending at an inclination angle of less than 45° with respect to the longitudinal direction is regarded as being along the longitudinal direction. Similarly, when expressed as being along each direction such as the width direction and the thickness direction, it means extending at an inclination angle of less than 45° with respect to each direction.

[I. First Embodiment]

[1. Structure]

[1-1. Basic structure]

First, the basic structure of the disposable diaper 1 will be described with reference to FIGS. 1 and 2 .

Here, the disposable diaper 1 is formed symmetrically with respect to the center line C in the width direction. This paper diaper 1 is roughly divided into three regions of a front body part 1A, a crotch part 1B, and a back body part 1C along the longitudinal direction.

〈Films〉

First, sheets of the paper diaper 1 will be described.

As shown in FIG. 1 , absorbent body 10 (indicated by a dotted line) extending in the longitudinal direction over front body portion 1A, crotch portion 1B, and back body portion 1C is incorporated in paper diaper 1 .

Here, an hourglass-shaped absorbent body 10 in which the dimension in the width direction of the crotch portion 1B is smaller than the dimension in the width direction of the front body portion 1A and the back body portion 1C is exemplified. However, the plan view shape of the absorber 10 is not limited to the above-mentioned hourglass shape, and may be rectangular in plan view (that is, the dimension in the width direction is constant), or may be a dumbbell shape in which the respective circles of the front body part 1A and the back body part 1C are connected. .

The absorber 10 is a water-absorbent pad-like (or pad-like) member that absorbs and holds liquid water such as urine and menstrual blood excreted from a user (hereinafter referred to as "excreted water").

In this absorbent body 10, pulverized or defibrated pulp (so-called "fluff pulp") is mixed with a superabsorbent resin (so-called "SAP<Superabsorbent polymer>", also called "superabsorbent polymer"). Molecules" or "superabsorbent polymers") are covered (wrapped) with hydrophilic non-woven fabrics, paper towels, etc.

Various sheets 11 , 12 , 13 , and 14 shown in FIG. 2 and described below are provided on the skin surface side and the non-skin surface side of the above-mentioned absorber 10 .

With respect to the absorber 10, the intermediate sheet 11 is laminated on the skin surface side, and the backsheet 12 is laminated on the non-skin surface side. The side sheet 13 is arrange|positioned at the side of the width direction of these sheets 11 and 12. As shown in FIG.

The side sheet 13 is laminated on the skin surface side of the intermediate sheet 11 at the widthwise side of the intermediate sheet 11 , and is laminated on the non-skin surface side of the backsheet 12 at the widthwise side of the backsheet 12 .

A cover sheet 14 is laminated on the non-skin side of the back sheet 12 . Here, the cover sheet 14 is superimposed on the widthwise side of the back sheet 12 via the side sheet 13 .

The middle sheet 11 has water permeability so that excreted water can pass through and be absorbed by the absorbent body 10 . Here, in order to suppress stuffiness in a worn state, the intermediate sheet 11 having air permeability is used. As such an intermediate sheet 11, a so-called air-through nonwoven fabric can be used.

In addition, the middle sheet 11 is arrange|positioned on the skin surface side most in the disposable diaper 1 (hence also called a "top sheet"). The dimension of the width direction of this intermediate sheet 11 is larger than that of the absorber 10, and this intermediate sheet 11 covers the absorber 10 from the skin surface side.

The backsheet 12 has water impermeability in order to prevent liquid leakage from the absorber 10 . Here, in order to suppress stuffiness in a worn state, the backsheet 12 having moisture permeability is used. As such a backsheet 12, a moisture-permeable polyethylene (PE<Poly-Ethylene>) film can be used. However, a polypropylene (PP<Poly-Propylene>) film may also be used for the back sheet 12 .

The side sheets 13 have water impermeability in order to prevent liquid leakage laterally in the width direction. As the side sheet 13, a spun-bonded nonwoven fabric can be used.

In addition, the part of the side sheet 13 is arrange|positioned most in the skin surface side in the disposable diaper 1 (hence, similarly to the middle sheet 11, it is also called a "top sheet"). As described above, as the side sheet 13 that can be in contact with the user, it is preferable to use a spun-bonded non-woven fabric whose flexibility is improved by including a melt-blown layer, such as SMS non-woven fabric and SMMS non-woven fabric. Alternatively, it is preferable to use a spunbonded nonwoven fabric in which softness is improved by suppressing the fineness or basis weight of fibers forming the spunbonded nonwoven fabric.

In addition, "fineness" is a parameter corresponding to the fiber diameter (thickness) or cross-sectional area of a fiber, and is expressed by the weight per unit length. For example, for one fiber, grams per 9000 m [denier] is used as "denier".

In addition, "weight per unit area" is a parameter corresponding to the thickness or lamination degree of a sheet, and is represented by the weight per unit area. For example, the number of grams per square meter is used as "weight per unit area".

The covering sheet 14 covers the above-mentioned absorber 10 and sheets 11, 12, and 13 from the non-skin surface side. Here, as the cover sheet 14 , three sheets of the first cover sheet 141 , the second cover sheet 142 , and the third cover sheet 143 are laminated in this order from the skin surface side toward the non-skin surface side.

The first covering sheet 141 covers the absorber 10 from the non-skin surface side through the backsheet 12 (thereby also referred to as a "pad covering sheet").

The second cover sheet 142 and the third cover sheet 143 are set so that: in the front body part 1A and the back body part 1C (refer to FIG. 1 ), the dimension in the width direction is larger than that of the first cover sheet 141, and the second cover sheet 142 and the third cover sheet The three cover sheets 143 are arranged around the user's buttocks, waist, abdomen, etc. in the worn state. The third covering sheet 143 is arranged most on the non-skin surface side in the paper diaper 1 (thus, the third covering sheet 143 is also called "outer covering sheet", and the second covering sheet 142 is also called "inner covering sheet") piece").

As the cover sheets 141 , 142 , and 143 described above, a spun-bonded nonwoven fabric can be used. Furthermore, as the first covering sheet 141 , it is preferable to use a highly flexible spun-bonded nonwoven fabric similar to the side sheet 13 in order to flexibly deform inside the disposable diaper 1 to secure fit. In addition, as the third cover sheet 143 , it is preferable to use a highly flexible spun-bonded nonwoven fabric similarly to the side sheet 13 in order to ensure the touch (touch).

As shown in FIG. 1 , the widthwise edge portions 14 a of the cover sheet 14 in the front body part 1A and the cover sheet 14 in the back body part 1C are bonded to each other (so-called "side seals"). As described above, each cover sheet 14 of the front body part 1A and the rear body part 1C is connected and provided to form the underpants type paper diaper 1 .

In addition, in the above-mentioned back sheet 12 and cover sheet 14, translucent materials to the extent that they can see through are used for the parts of the sheets 12 and 14 on the skin side.

<pleats>

Next, the gathers 15 of the disposable diaper 1 will be described with reference to FIGS. 1 and 2 .

The gathers 15 are constituted by a sheet composite, and the sheet composite is utilized by sandwiching a stretchable member (stretchable member) such as rubber, urethane, or stretchable film between sheets of nonwoven fabric or the like in an extended state. It has stretchability by being fixed with hot melt or the like. This sheet composite is in a state in which fine wrinkles are generated on the sheet of nonwoven fabric or the like due to the force (restoration force, elastic force) of the stretchable member to return to its original shape (state of natural length) from the stretched state. . Here, a string-shaped rubber member (hereinafter simply referred to as “rubber string”) 20 is exemplified as an elastic member.

In this paper diaper 1, three kinds of gathers 16, 17, and 18 provided with stretchability by three kinds of rubber threads 21, 22, and 23 are exemplified as gathers 15 formed of rubber threads 20. FIG. One is the three-dimensional gathers 16 (also referred to as "side gathers") in which the skin-side edge of the side panel 13 is gathered by the first rubber thread 21 . The other is plain weave pleats 17 in which the second cover sheet 142 and the third cover sheet 143 (see FIG. 2 ) are wrinkled by means of the second rubber thread 22 (only partly labeled). Another is the second three-dimensional gathers 18 (in FIG. illustration omitted).

The three-dimensional gathers 16 are formed by integrating the first rubber thread 21 with the piece portions 13a, 13b of the side panel 13 in a stretched state. In addition, the plain gathers 17 are formed by integrating the second rubber thread 22 with the second covering sheet 142 and the third covering sheet 143 in a stretched state. In addition, the second three-dimensional gathers 18 are formed by integrating the third rubber thread 23 with the non-skin side portion of the side panel 13 in a stretched state.

The three-dimensional gathers 16 are provided to prevent excrement from leaking laterally in the width direction by improving followability to the user with the periphery of the excretion site.

Specifically, as shown in FIG. 2 , in the three-dimensional gathers 16 , the sheet portions 13 a , 13 b located at the inner edge portion in the width direction on the skin surface side of the side sheet 13 are folded and overlapped. The first rubber cord 21 extending in the longitudinal direction is surrounded by the above-mentioned piece portions 13a, 13b.

In other words, the inner wall sheet portion 13 a of the side sheet 13 is arranged on the inner side of the first rubber thread 21 in the width direction, and the outer wall sheet portion 13 b is arranged on the outer side of the first rubber thread 21 in the width direction. That is, in a part of the side panel 13, the two sheet parts 13a and 13b are overlapped.

As described above, by inserting the first rubber threads 21 in the folded and overlapping portions of the side panels 13, the three-dimensional gathers 16 are formed upright on the skin side and have stretchability.

In addition, in FIG.1 and FIG.2, the three-dimensional gathers 16 provided with the two 1st rubber threads 21 are illustrated. However, the number of first rubber threads 21 in the three-dimensional gathers 16 may be one, or three or more.

The plain pleats 17 are provided to improve the followability to the user's buttocks and lower abdomen. Specifically, in the plain weave pleats 17, a plurality of second rubber threads 22 extending in the width direction like warp yarns in the plain weave are sandwiched between the second covering sheet 142 and the third covering sheet 143 (refer to Figure 2) between.

As described above, by inserting the second rubber thread 22 between the cover sheets 142 and 143 , elastic plain gathers 17 are formed along the circumference of the buttocks and lower abdomen.

The second three-dimensional gathers 18 are provided to improve followability in the crotch portion 1B. Specifically, in the second three-dimensional gathers 18 , the third rubber thread 23 is provided on the outer edge portion in the width direction of the side panel 13 on the non-skin surface side. Thus, by incorporating the third rubber thread 23 in the widthwise outer edge portion of the side panel 13, the second three-dimensional gathers 18 having stretchability along the crotch portion 1B are formed.

In addition to or instead of the above-mentioned gathers 16 , 17 , 18 , leg gathers for improving followability to the user's thighs may be provided.

<indicator>

In addition, as shown in FIG. 2 , the disposable diaper 1 is provided with an indicator 19 (which is also referred to as a "notification mark") for externally showing information on the presence or absence of urination (excretion).

The indicator 19 is attached to the absorber 10 so that it can be visually recognized from the exterior of the disposable diaper 1 (external observation is possible). In addition, the indicator 19 is a layered portion that changes color when wetted. Here, an indicator 19 is interposed between the absorber 10 and the back sheet 12 .

The indicator 19 is provided by applying a water-sensitive material to the skin side of the back sheet 12 . For example, the indicator 19 is yellow or orange before sensing moisture (before wetting), and changes to blue or yellow-green after sensing moisture (after being wetted).

Since the back sheet 12 and the cover sheet 14 have translucency as described above, when the indicator 19 changes color due to excretion of water, the indicator 19 after the color change can be visually recognized from the outside of the disposable diaper 1, so that the indicator 19 can be viewed from the outside. Identify the presence or absence of excretion.

[1-2. Detailed structure]

Next, the detailed structure of the disposable diaper 1 will be described with reference to FIG. 3 .

〈Extrusion Department〉

First, the extruded portion 40 (recessed portion, extruded groove) formed by extruding to cross both the longitudinal direction and the width direction will be described. Specifically, the groove-shaped pressed portion 40 formed by pressing at least a region intersecting both the longitudinal direction and the width direction in the absorber 10 will be described.

The pressing portion 40 is extended to improve the fit of the disposable diaper 1 to the wearer.

The extruded portion 40 is provided by press-molding the absorber 10 and the intermediate sheet 11 (see FIGS. 1 and 2 ) in the thickness direction (lamination direction). Specifically, the laminated absorbent body 10 and intermediate sheet 11 are pressurized (compressed) from the skin surface side using a punch of a predetermined shape (pattern), thereby pressing the absorbent body 10 and the intermediate sheet 11. The air contained in the portion forms the pressed portion 40 where the intermediate sheet 11 and the absorbent body 10 are engaged and fixed.

That is, the pressing portion 40 is a concave portion that is recessed in the thickness direction. The pressing portion 40 extends linearly (that is, in a groove shape) so as to intersect both the longitudinal direction and the width direction. Moreover, in the absorber 10, the pressed part 40 is provided except the edge (end part area|region) of the width direction.

In the extruding part 40 here, there are provided: a plurality of first inclined parts 41 (only partly marked with reference numerals) obliquely intersecting on one side (for example, the right side) of the width direction with respect to the length direction; The other side (for example, the left side) in the width direction obliquely intersects a plurality of second inclined portions 42 (symbols are only partially attached). That is, these inclined portions 41 and 42 (extruded lines) are formed in a lattice shape (grid pattern) in plan view.

According to the pressing portion 40 described above, the absorber 10, the middle sheet 11, and even the disposable diaper 1 are easily bent at the extended portion of the pressing portion 40, thereby ensuring the fit of the disposable diaper 1 to the user.

Assuming that only the pressing part 40 is provided on the paper diaper 1 as a structure for ensuring fit, although it is easy to bend in the direction using the pressing part 40 as a crease, it is difficult to bend in other directions, The fit for the user is reduced.

〈Following Department〉

Therefore, in the paper diaper 1 of the present embodiment, in order to further improve the fit for the user, the following portion 50 (slit portion) extending so as to intersect the pressing portion 40 is provided.

The following part 50 is provided for fitting the disposable diaper 1 to the user, and is a structure particularly suitable for the purpose of improving fit. Therefore, the following portion 50 is arranged at a predetermined portion where it is expected to be bent in a worn state.

The following portion 50 includes at least a site (region) in the absorber 10 that has lower rigidity than other regions. Accordingly, the low-rigidity portion is included in the following portion 50 .

A part of the following portion 50 described here includes the intersecting portion (intersecting position, intersection point) between the above-mentioned inclined portions 41 and 42 , and penetrates the absorber 10 in the thickness direction. In addition, a part of the pressing part 40 has a symmetrical shape with respect to at least a part of the following part 50 . However, the arrangement location of the following portion 50 may not include the intersection of the inclined portions 41 and 42 .

In this following part 50, be provided with: along the first following part 51 of width direction (in Fig. 3 only mark label on the left side); And along the second following part 52 of longitudinal direction (only in Fig. The front body part 1A side is marked with a reference number).

The first following portion 51 (notch portion) is disposed at a portion (position in the longitudinal direction) that is expected to be bent along a crease along the width direction in the worn state.

Here, three kinds of first following parts 51 are provided. Specifically, in the center of the longitudinal direction of the absorber 10, a portion closer to the front body portion 1A side (one end side) than the center in the longitudinal direction, and a portion closer to the rear body portion 1C side (the other end side) than the center in the longitudinal direction. Each part is provided with a first following part 51 .

However, the first tracking portion 51 is not limited to being arranged at three locations as described above, and may be arranged at one location, two locations, or four or more locations in the longitudinal direction.

The above-mentioned first following portion 51 is provided in the crotch portion 1B of the disposable diaper 1 in a state in which the end portion in the width direction of the absorbent body 10 is cut. Moreover, the three-dimensional gathers 16 mentioned above are provided in the width direction side side rather than the 1st following part 51 (refer FIG. 1).

The second following portion 52 is arranged at a portion (position in the width direction) that is expected to be bent along the crease along the longitudinal direction in the worn state. In FIG. 3 , three second trailing portions 52 arranged in the width direction in the front body part 1A and the rear body part 1C are shown as examples. However, in the front body part 1A and the back body part 1C, one or two or four or more second trailing parts 52 may be arranged in a row.

Further, the second following portion 52 is provided with notches 521 in which the longitudinal ends of the absorber 10 are cut, and pores 522 in which the absorber 10 is cut out. In other words, the notches 521 and the pores 522 are arranged along the longitudinal direction, and the above-mentioned notches 521 and the pores 522 are provided discontinuously.

The absorber 10 provided with the above-mentioned following portion 50 can be formed by laminating pulp or superabsorbent resin on a die having a protruding portion in a shape corresponding to the following portion 50 . Alternatively, the following portion 50 can also be provided by cutting out a part of the absorber 10 .

[2. Function and effect]

Since the disposable diaper 1 of this embodiment is comprised as mentioned above, the following operation|movement and effect can be acquired.

Next, the action and effect related to the pressing part 40 will be described, and then the action and effect related to the following part 50 will be described.

[2-1. Extrusion Department]

(1) The absorber 10 or the intermediate sheet 11 is easily bent at the extended portion of the squeezed portion 40 , thereby making the disposable diaper 1 easy to bend and improving the fit of the disposable diaper 1 to the user.

In addition, the absorber 10 and the intermediate sheet 11 formed with the groove-shaped pressing portion 40 can be prevented from contacting the wearer's skin surface, thereby improving air permeability in a worn state and suppressing stuffiness inside the disposable diaper 1 .

In addition, the squeezed portion 40 extending to cross both the longitudinal direction and the widthwise direction can diffuse the liquid drained by, for example, capillarity along the squeezed portion 40 . Therefore, the diffusibility of the liquid discharged in both the longitudinal direction and the width direction can be improved, and the water-absorbing parts of the absorbent body 10 can be dispersed. Thereby, the water absorbency of the absorber 10 can be ensured.

(2) According to the inclined parts 41, 42 inclined in different directions from each other in the pressing part 40, since the pressing part 40 is along two directions, the paper diaper 1 is easy to bend according to the creases extending in two directions. By folding, the fit for the user can be further improved.

In addition, since the pressing portion 40 is aligned in two directions by the inclined portions 41, 42, the inside of the disposable diaper 1 is ventilated in two directions, so that the air permeability in the wearing state can be further improved, and the paper can be reliably suppressed. The stuffiness inside the diaper 1.

In addition, since the pressing portion 40 extends in two directions, the diffusibility of the excreted liquid can be further improved, and the water absorbency of the absorbent body 10 can be improved. That is, the excreted liquid can be efficiently diffused by the inclined portions 41 and 42 having a lattice shape in a plan view, and the water absorption efficiency of the absorbent body 10 can be improved.

(3) In addition, since the squeezing portion 40 is provided on the portion of the absorbent body 10 other than the edge (end region) in the width direction, even if the excreted liquid passes through the squeezing portion 40 and spreads in the width direction The outside is diffused, and the excreted water is also absorbed by the absorber 10 at the end of the diffusion. Thereby, leakage of the drained liquid to the outside in the width direction can be reliably suppressed.

[2-2. Follow Department]

Next, the operation and effect of the following unit 50 will be described.

(1) According to the following portion 50 extending across the pressing portion 40 , the disposable diaper 1 can be easily bent at a portion other than the pressing portion 40 , and the fit of the disposable diaper 1 to the user can be further improved.

Thereby, the comfort of the user who wears the disposable diaper 1 can be improved.

(2) Furthermore, according to the following part 50 , at least the absorber 10 includes a low-rigidity part whose rigidity is lower than that of other regions, so that bending at the following part 50 can be promoted structurally. Thereby, the fitting property of the disposable diaper 1 can be improved, and the user's comfort can be improved.

(3) Since the following portion 50 is arranged at a predetermined location where bending is expected to occur in a worn state, the disposable diaper 1 is likely to bend at the predetermined location. Conversely, by arranging the following portion at the site where the bending force acts in the disposable diaper 1 in the worn state, the fit property can be appropriately improved.

(4) According to the following part 50 arrange|positioned at the front body part 1A side rather than the center of a longitudinal direction, the fitting property of the diaper 1 with respect to a user's abdomen periphery can be improved reliably. For example, in the case of the following portion 50 (that is, the second following portion 52 of the front body portion 1A) disposed along the longitudinal direction in the front body portion 1A, the absorber 10 is easily bent at the following portion 50. Therefore, the absorber 10 Able to deform in a way that traces curves along the curved surface around the abdomen.

Moreover, the following part 50 arrange|positioned at the back body part 1C side rather than the center of a longitudinal direction can improve the fit property of the diaper 1 with respect to the circumference|surroundings of a user's buttocks and a waist reliably. For example, in the case of the following portion 50 arranged along the longitudinal direction in the back body portion 1C (that is, the second following portion 52 of the back body portion 1C), the absorber 10 is easily bent at the following portion 50, and therefore, absorbs The body 10 can be deformed so as to draw curves along the curved surfaces around the hips and waist.

Furthermore, according to the following part 50 arrange|positioned in the center of a longitudinal direction, the fit property with respect to a user's crotch can be improved. For example, in the case of the following portion 50 (i.e., the first following portion 51) disposed along the width direction in the crotch portion 1B, the absorber 10 is easily bent at the following portion 50, so that it can be stretched from the front body portion 1A to the back body portion. Within the range of the portion 1C, the absorber 10 can deform so as to draw a curve along the curved surface of the center line of the user's body.

(5) Since the following part 50 of this embodiment penetrates the absorber 10 in the thickness direction, the bending resistance of the absorber 10 itself does not generate|occur|produce in the following part 50. Therefore, the fit property of the disposable diaper 1 to the user can be reliably improved.

(6) For example, the absorber 10 in the crotch portion 1B acts to be twisted due to the posture of the user or the movement of the legs by the first following portion 51 that cuts the end portion in the width direction of the absorber 10 . When the deforming force is applied, the absorber 10 can be deformed according to the deforming force. In addition, the absorber 10 can be smoothly deformed in the region from the user's crotch to the buttocks. Thereby, the fit property of the disposable diaper 1 with respect to the user's crotch can be improved reliably.

Moreover, according to the notch part 521 which cut|disconnects the longitudinal direction end part of the absorber 10 in the 2nd following part 52, the shape which follows the circumference|surroundings of a user's waist and abdomen of the disposable diaper 1 can be deformed smoothly. Thereby, the fit property of the disposable diaper 1 around the abdomen and the waist of the user can be reliably improved.

(7) Furthermore, according to the fine hole portion 522 formed by cutting the absorber 10 in the second following portion 52, it is possible to improve the bending of the portion of the absorber 10 that is easily subjected to bending stress but is difficult to bend. sex. Also from this point, the fit property of the disposable diaper 1 around the abdomen and waist of the user can be reliably improved.

In addition, since the notch part 521 and the fine hole part 522 are provided discontinuously, twisting (twisting) of the absorber 10 can be suppressed, and it is also advantageous in suppressing breakage (damage) of the absorber during the manufacturing process.

(8) However, even in the pressing part 40 , the intersecting part of the pressing part 40 tends to become hard. In view of this point, the following portion 50 is provided at the intersection of the pressing portion 40 . Specifically, in the front body part 1A and the back body part 1C, the notch part 521 and the fine hole part in the center of the width direction in the second trailing part 52 are arranged at the intersection of the first slope part 41 and the second slope part 42 . 522, the first following portion 51 is disposed on the crotch portion 1B. Therefore, hardening at the intersecting portion of the pressing portion 40 is suppressed, which contributes to improving the fit to the user.

In addition, since the pressing part 40 is formed in a symmetrical shape with respect to the following part 50, the following part 50 deforms so as to draw a curve in a balanced manner along the curve of the user's body.

[II. Second Embodiment]

Next, a second embodiment of the paper diaper will be described.

In the paper diaper according to the present embodiment, the following portion (slit portion) is arranged at a location different from the above-described following portion 50 . In addition, the structure other than the point demonstrated here is the same structure as 1st Embodiment. These structures are denoted by the same reference numerals, and detailed explanations are omitted.

[1. Structure]

First, the configuration of the following unit 50' according to the present embodiment will be described with reference to FIG. 4 .

The following part 50' is provided for fitting with a user similarly to the above-mentioned following part 50, and is a structure especially suitable for the purpose of improving a fit. The following portion 50' extends so as to intersect the pressing portion 40' at a predetermined portion where it is expected to be bent in a worn state. Further, in the following portion 50 ′, there are provided: a first following portion 51 ′ (pore portion) along the width direction; and a second following portion 52 ′ (pore portion) along the longitudinal direction.

The 1st following part 51' differs from the said 1st following part 51, and is provided in the state which cut the absorber 10'.

The first tracking portion 51' is arranged at the center in the width direction of the crotch portion 1B' of the disposable diaper 1'. Here, in the center of the longitudinal direction of the absorber 10', a portion closer to the front body part 1A' side (one end side) than the center in the longitudinal direction, and a part closer to the back body part 1C' side (the other end side) than the center in the longitudinal direction ) are respectively provided with first following parts 51'. However, the first following portion 51' is not limited to being arranged at three locations in the longitudinal direction as described above, and may be arranged at one location, two locations, or four or more locations in the longitudinal direction.

The 2nd following part 52' does not provide the part corresponding to the notch part 521 of the said 2nd following part 52, but is provided in the state which cut out the absorber 10'.

The second trailing portion 52' is provided on the front body part 1A' and the back body part 1C' of the disposable diaper 1', respectively. In FIG. 4, three 2nd trailing parts 52' lined up in the width direction are exemplified in the front body part 1A' and the back body part 1C', respectively. However, in the front body part 1A' and the back body part 1C', one, two, or four or more second trailing parts 52' may be arranged in a row.

In addition, unlike the second following portion 52 described above, the second following portion 52 ′ is arranged in a linear shape continuous in the longitudinal direction.

[2. Function and effect]

Since the disposable diaper 1' of this embodiment is comprised as mentioned above, the following operation|movement and effect can be acquired.

In the following part 50' of this embodiment, since the absorbent body 10' is cut off, even if the excreted liquid spreads in the following part 50' and spreads outward in the width direction, the excreted water can be absorbed by the diffusion end. The absorbent body 10' absorbs. Thereby, leakage of the drained liquid to the outside in the width direction can be reliably suppressed.

In addition, the absorber 10' can be smoothly deformed in the region from the user's crotch to the buttocks by the first following portion 51' disposed in the crotch portion 1B' of the disposable diaper 1'. Moreover, according to the second following part 52' arranged in the front body part 1A' and the back body part 1C' of the disposable diaper 1', the shape which follows the circumference|surroundings of a waist and abdomen of a user can be deformed smoothly. In this manner, the fit of the disposable diaper 1' to the crotch, abdomen, and waist circumference of the user can be reliably improved.

In addition to this, the same operations and effects as those of the first embodiment can be obtained except for the operations and effects achieved by the arrangement of the follower portion 50 described in the first embodiment.

[III. Third Embodiment]

Next, a third embodiment of the paper diaper will be described.

The paper diaper of the present embodiment has the following structures A to C identified.

·Structure A: In the absorber, two types of following portions are arranged to intersect.

- Structure B: The content level of the superabsorbent resin is set corresponding to each region of the absorbent body.

• Structure C: The intermediate sheet (sheet) has a multilayer structure.

In addition, the structure other than the point demonstrated in this embodiment is the same structure as the said 1st Embodiment or 2nd Embodiment. These structures are denoted by the same reference numerals, and detailed explanations are omitted.

[1. Structure]

First, with reference to FIG. 5 , the above-mentioned configurations A and B will be described with respect to the absorbent body 10 ″ incorporated in the paper diaper 1 ″ of this embodiment.

<Structure A>

The absorber 10" of this embodiment is provided with the following part 50", and this following part 50" cross|intersects the 1st following part 51" along the width direction, and the 2nd following part 52" along the longitudinal direction in planar view. made.

<Structure B>

The following portion 50" mentioned above is arrange|positioned in the area|region other than the edge part (edge) of the absorber 10". For example, the 1st following part 51'' is extended in the area|region other than the width direction end part area|region _RW (outer area|region) of the absorber 10''. Moreover, the 2nd following part 51'' is extended in the area|region other than the longitudinal direction end area|region (illustration omitted) of the absorber 10''. That is, in the absorber 10″, the widthwise end region _RW exists on the widthwise end side with respect to the first following portion 51″, and the lengthwise end region RW exists on the side of the longitudinal end portion with respect to the second following portion 52″. A region (not shown) exists on the end side in the longitudinal direction.

Here, it is set that the content of the superabsorbent resin in at least the _widthwise end region RW located on the widthwise end side with respect to the first following portion 51″ is higher than that in other regions. The resin content is high.

For example, it is set so that the density (content level) of the superabsorbent resin in the width direction end region _RW is higher than the density of the superabsorbent resin in other regions. The "density" referred to here refers to the mass of the superabsorbent resin per unit volume in the absorbent body 10". Alternatively, the width direction end regions R _W and other regions of the absorbent body 10" may be divided into The density of the superabsorbent resin is set to be equal, and on this basis, the width direction end region R _W is made thicker than the other regions, so that the amount of super absorbent resin contained in the width direction end region R _W (containing degree) is set to be larger (larger) than the amount (containment degree) of the superabsorbent resin contained in other regions. Specifically, the content of the superabsorbent resin per unit area in the absorbent body 10" in plan view is set so that the content in the _widthwise end region RW is larger than that in the other regions.

In addition, the widthwise end region RW in which the content of the _{superabsorbent} resin is set to be high may include not only the region located on the widthwise end side with respect to the first following portion 51″, but also the widthwise end region RW. Other regions whose directional position overlaps this region but whose lengthwise position differs from this region.

Similarly, the content of the superabsorbent resin in at least the longitudinal end region located on the longitudinal end side with respect to the second following portion 52″ can be set to be higher than the content of the superabsorbent resin in other regions. high.

<Structure C>

Next, with reference to Fig. 6, a structure C related to the intermediate sheet 11" will be described.

The intermediate sheet 11 ″ of the present embodiment is formed in a multilayer structure in which at least an upper layer (first layer) 11u″ arranged on the skin side and a lower layer (second layer) 11d″ arranged on the non-skin side are laminated. In addition, At least one of the upper layer 11u" and the lower layer 11d" may further have a multilayer structure. The intermediate sheet 11" in this case has a multilayer structure of three or more layers.

The upper layer 11u'' and the lower layer 11d'' of the intermediate sheet 11'' are partially bonded together. This bonded portion constitutes an auxiliary follower portion 110'' extending across the pressing portion 40 in plan view.

The auxiliary following part 110'' is provided for fitting the disposable diaper 1'' to the wearer similarly to the above-mentioned following parts 50 and 50'. As the bonding method of the upper layer 11u" and the lower layer 11d" in the auxiliary following part 110", various known bonding methods such as a known bonding method using a hot melt adhesive or embossing can be used. The upper layer 11u" and the lower layer 11d" are partially bonded together.

[2. Function and effect]

Since the paper diaper 1" of this embodiment is comprised as mentioned above, the following operation and effect can be acquired.

<Structure A>

In the following part 50" of this embodiment, the 1st following part 51" and the 2nd following part 52" are arrange|positioned so that they may intersect in planar view. Thereby, the liquid excreted from the user wearing the disposable diaper 1" not only passes through the pressing part 40, also spread along both the width direction and the longitudinal direction by the following part 50 ". In addition, since the two kinds of following parts 51 ", 52 " are arranged with different orientations, therefore, the paper diaper 1 " will be in the position other than the pressing part 40 It is easier to bend, so that the fit of the disposable diaper 1" to the user can be reliably improved.

<Structure B>

In addition, the content of the superabsorbent resin in the _widthwise end region RW located on the widthwise end side with respect to the first following portion 51″ is set to be higher than that in other regions. In other words, in the absorption In the body 10″, in the widthwise end region RW corresponding to the end region where the liquid _excreted from the user wearing the disposable diaper 1″ spreads along the widthwise direction along the first following portion 51″, ensured The content of superabsorbent resin. Therefore, the superabsorbent resin of the absorbent body 10" can reliably absorb the liquid spreading in the width direction. This is very effective in preventing so-called side leakage (leakage of liquid in the width direction).

Similarly, if the content of the superabsorbent resin in the longitudinal end region (not shown) located on the longitudinal end side with respect to the second following portion 52″ is set high, it is possible to The liquid diffused in the longitudinal direction is reliably absorbed by the superabsorbent resin of the absorbent body 10". This is very effective in preventing so-called ventral leakage and dorsal leakage (leakage of liquid in the lengthwise direction).

In addition, the widthwise end region RW in which the content of the _{superabsorbent} resin is set to be high includes not only the region located on the widthwise end side with respect to the first following portion 51″, but also the In the case of another region whose position in the width direction overlaps with this region and whose position in the longitudinal direction differs from this region, the manufacturing process of adjusting the content of the superabsorbent resin for each region of the absorbent body 10 ″ can be simplified. This is advantageous in reducing the manufacturing cost of the paper diaper 1".

<Structure C>

In addition, an auxiliary following portion 110 ″ is provided on the intermediate sheet 11 ″, and the auxiliary following portion 110 ″ is a joining portion that partially joins the upper layer 11 u ″ and the lower layer 11 d ″, and extends so as to intersect the pressing portion 40 in a plan view. Thus, the paper diaper 1" can be easily bent not only through the following part 50" of the absorber 10", but also through the auxiliary following part 110" of the intermediate sheet 11", which is beneficial to improve the quality of the paper diaper. 1" for user fit.

[IV. Others]

Finally, other modified examples will be described.

For example, the pressing part may be provided at least on the absorber, and may not be provided on the intermediate sheet. In this case, before the intermediate sheet is laminated, a part of the absorber is pressed from the skin side to form a pressed portion. Alternatively, a squeeze portion may be formed on the non-skin surface side of the absorber. In this case, at least the absorber is pressed from the non-skin surface side to form the pressed portion.

In addition, the planar view shape of the pressing portion is not limited to the lattice shape, and various shapes can be adopted. To give a specific example, at least one of the first slope and the second slope is singular, and at least one may be omitted. Furthermore, the first inclined portion or the second inclined portion may be in a curved shape other than a linear shape, or may be in a triangular wave shape or a rectangular wave shape. By forming the pressing portion in another plan view shape as described above, fit, air permeability, and water absorbency can also be ensured, which contributes to improving the user's comfort.

The following part is not limited to the form that penetrates the absorber, and may have a groove-shaped groove-shaped part in which the absorber is recessed, or may have a unit with a lower unit weight (basis weight) than the area other than the following part. Area Weight Zones (Low Basis Weight Zones). The low basis weight region includes not only a region where the absorber is partially recessed, but also a region where the absorber is not recessed but is flat (that is, a region that has a lower density per unit volume than other regions). In this way, it is possible to employ a less rigid follower part in a part (partial region) of the absorber by various configurations.

In addition, in the following part, at least any one of the parts forming the part penetrating the absorber, the groove-shaped part, and the part of the low basis weight region may be intermittently provided, or the various parts may be combined. Parts mixed storage settings. For example, a groove-shaped portion is applied to any one of the first following portion and the second following portion, and a low basis weight region is applied to the other arbitrary one. Alternatively, a slit formed by cutting out as shown in the first embodiment to the third embodiment is applied to any one of the first following part and the second following part, and any other Among them, low unit area weight areas, grooved parts are used.

In addition, the extending direction of the following portion may be at least a direction intersecting with the extending direction of the pressing portion. In addition, the size (size in plan view) of the following portion in a direction perpendicular to the extending direction thereof is set arbitrarily. For example, the size of the first following portion and the size of the second following portion may be equal or different from each other.

In this way, by having a groove-shaped portion or a following portion having a low basis weight region, similar to the above-described following portions 50 and 50 ′, the fit of the diaper can be improved, thereby improving the user's comfort.

Alternatively, the absorbent body may be constituted by laminating the upper layer absorbent body and the lower layer absorbent body. In this case, the following part is provided in at least any one of the upper layer absorbent body and the lower layer absorbent body. For example, when the following portion is not formed in the upper layer absorbent body facing the user's skin and only the following portion is formed in the lower layer absorbent body on the non-skin surface side, it is possible to prevent the step caused by the following portion from forming on the absorbent body. resulting in user discomfort. Moreover, when forming the following part on both the upper layer absorbent body and the lower layer absorbent body, by arranging the following parts of the upper layer absorbent body and the following part of the lower layer absorbent body respectively (for example, they are alternately arranged in a plan view), it is possible to Compatible with various bending states of the absorber. In addition, deformation and fracture (tear) of the absorber can also be suppressed.

In addition, the extruded part may be formed after overlapping the upper layer absorbent body and the lower layer absorbent body, or may be formed on at least one of the upper layer absorbent body and the lower layer absorbent body.

In addition, an auxiliary following portion extending in a direction different from the extending direction of the following portion in a plan view may be provided in connection with the following portion. The auxiliary following portion may extend in the extending direction of the pressing portion, or may extend to cross the extending direction of the pressing portion. By adding such an auxiliary follow-up part, the fitting property of a disposable diaper can be further improved, and the comfort of a user can be reliably improved.

Label description

1: Paper diaper (absorbent article), 1A: Front body, 1B: Inseam, 1C: Back body, 10: Absorber, 11: Middle sheet (sheet), 12: Back sheet, 13: Side sheet, 14: Cover sheet, 15: Pleats, 16: Three-dimensional pleats, 17: Plain pleats, 18: Second three-dimensional pleats, 19: Indicator, 20: Rubber thread (elastic part), 21: First rubber Line, 22: Second rubber line, 23: Third rubber line, 30: Indicator, 40: Extruded part (recessed part), 41: First inclined part, 42: Second inclined part, 50: Following part (low Rigid part, slit part), 51: first follow-up part (notch part), 52: second follow-up part, 521: notch part, 522: fine hole part, 50': follow-up part (slit part), 51': second follow-up part 1st tracking part (fine hole part), 52': second tracking part (fine hole part), C: centerline.

Claims (17)

1. An absorbent article having a pad-like absorbent body having water absorption, wherein, The absorbent article has: a groove-shaped pressing portion provided on the absorber, and the pressing portion is formed by pressing so as to intersect both the longitudinal direction and the width direction in plan view; and One or more follow-up portions for improving fit to the user are provided on the absorber and extend across the pressing portion in a plan view. 2. The absorbent article according to claim 1, wherein: The trailing portion has a low-rigidity portion that is lower in rigidity than other regions. 3. The absorbent article according to claim 1 or 2, wherein: The tracking portion is disposed at a predetermined portion that is expected to be bent when worn by a user. 4. The absorbent article according to any one of claims 1 to 3, wherein: The following portion is arranged at a position closer to one end than the center in the longitudinal direction. 5. The absorbent article according to claim 4, wherein: The follow-up portion is disposed on the other end side of the center in the longitudinal direction. 6. The absorbent article according to any one of claims 1 to 5, wherein: At the center in the longitudinal direction, the following portion is arranged. 7. The absorbent article according to any one of claims 1 to 6, wherein: The following portion has a groove-shaped groove-shaped portion. 8. The absorbent article according to any one of claims 1 to 7, wherein: The following portion has a slit that penetrates the absorber in a thickness direction. 9. The absorbent article according to any one of claims 1 to 8, wherein The following portion has a low basis weight region, and the basis weight in the low basis weight region is suppressed compared with regions other than the following portion. 10. The absorbent article according to any one of claims 1 to 9, wherein The extrusion part has: a first inclined portion obliquely intersecting in one direction with respect to the length direction and the width direction in plan view; and The second inclined portion obliquely intersects in another direction with respect to the longitudinal direction and the width direction in plan view. 11. The absorbent article according to claim 10, wherein: At least one of the first inclined portion and the second inclined portion is provided in plural. 12. The absorbent article according to claim 10 or 11, wherein, The one or more trailing portions are provided so as to include a position where the first slanted portion and the second slanted portion intersect in plan view. 13. The absorbent article according to any one of claims 1 to 12, wherein: The absorbent body is formed by laminating an upper layer absorbent body and a lower layer absorbent body, and the following portion is provided on at least one of the upper layer absorbent body and the lower layer absorbent body. 14. The absorbent article according to any one of claims 1 to 13, wherein The following portion has a first following portion along the width direction and a second following portion along the longitudinal direction. 15. The absorbent article of claim 14, wherein: The first following portion intersects the second following portion in a plan view. 16. The absorbent article according to any one of claims 1 to 15, wherein In the absorber, an outer region located on the outer side in the width direction with respect to the following portion has a greater content of the absorbent resin than other regions. 17. The absorbent article according to any one of claims 1 to 16, wherein: The absorbent article has a sheet laminated on the absorbent body and has at least a first layer and a second layer, The sheet has an auxiliary follow-up portion for improving the fit to the user, and the auxiliary follow-up portion is a part where the first layer and the second layer are partially bonded together, which is connected to the extruded portion in a plan view. extended crosswise.