JP7257948B2 - Laminated nonwoven fabric - Google Patents

Description

The present disclosure relates to laminated nonwoven fabrics.

A laminated nonwoven fabric is known in which a plurality of elastic members are arranged in a stretched state between two nonwoven fabrics to give elasticity. The laminated nonwoven fabric can be used, for example, as a gather member of a disposable diaper.

For example, in Patent Document 1, there is a first nonwoven fabric layer and a second nonwoven fabric layer that partially or entirely overlap, and a space is provided between the first nonwoven fabric layer and the second nonwoven fabric layer in the orthogonal direction orthogonal to the stretching direction. and a plurality of elongated elastic members arranged along the stretch direction, wherein both ends of the elastic member in the stretch direction at least in the stretch region are on the first non-woven fabric layer and the second non-woven fabric layer. The elastic region has a sheet joint portion where the first nonwoven layer and the second nonwoven layer are joined, and at least one of the first nonwoven layer and the second nonwoven layer extends in the thickness direction. In the stretchable structure of a disposable wearing article, wherein the perforated nonwoven fabric having an array of perforations penetrating through it, the sheet joints are in a striped pattern spaced apart in the orthogonal direction and substantially continuous in the stretch direction. The arrangement of the holes in the stretchable structure is such that the rows of holes spaced apart in the orthogonal direction are spaced in the stretchable direction, and the diameter of the holes extends in the thickness direction A first row of holes that decreases from one side to the other, and a second row of holes that has a diameter that decreases from the other side to the other side in the thickness direction, are arranged at a predetermined center in the expansion and contraction direction. Disclosed is an elastic structure for a disposable wearing article characterized by alternating intervals.
Further, Patent Literature 1 describes that the sheet joining portion can be formed with a hot-melt adhesive.

According to Patent Document 1, in the elastic structure, since the sheet joints are formed at intervals in at least the orthogonal direction perpendicular to the elastic direction, good breathability and flexibility can be ensured. It is

JP 2019-170554 A

The elastic structure described in Patent Document 1 has good air permeability due to the presence of the holes. was easy to perceive.
In addition, in the elastic structure described in Patent Document 1, since the sheet joint portion is formed with a hot-melt adhesive, the wearer does not easily feel the hardness of the sheet joint portion itself. The hot-melt adhesive that forms the sheet joint may be touched through the hole, and the elastic structure may cause discomfort.
Accordingly, an object of the present disclosure is to provide a laminated nonwoven fabric that has air permeability and flexibility, and is difficult to come into contact with adhesives.

The present disclosure discloses a laminated nonwoven fabric for absorbent articles having a first direction, a second direction and a thickness direction orthogonal to each other and stretchable in the first direction, the laminated nonwoven fabric comprising: In the thickness direction, between the first nonwoven fabric, the second nonwoven fabric, and the first nonwoven fabric and the second nonwoven fabric, a plurality of nonwoven fabrics extending in the first direction and spaced apart in the second direction and at least one of the first nonwoven and the second nonwoven alternates in the second direction between high basis weight portions and low basis weight portions having a lower basis weight than the high basis weight portions. and wherein each of said plurality of elastic members is adhesively bonded to a first nonwoven and a second nonwoven.

The laminated nonwoven fabric of the present disclosure has air permeability and flexibility, and is less likely to come into direct contact with an adhesive.

FIG. 1 is a diagram for explaining a laminated nonwoven fabric 1 according to the first embodiment. FIG. 2 is a diagram for explaining the laminated nonwoven fabric 1 according to the first embodiment. FIG. 3 is a diagram for explaining the laminated nonwoven fabric 1 according to the first embodiment. FIG. 4 is a diagram for explaining the laminated nonwoven fabric 1 according to the first embodiment. FIG. 5 is a diagram for explaining the laminated nonwoven fabric 1 according to the second embodiment. FIG. 6 is a diagram for explaining the laminated nonwoven fabric 1 according to the second embodiment. FIG. 7 is a diagram for explaining the laminated nonwoven fabric 1 according to the second embodiment. FIG. 8 is a diagram for explaining the laminated nonwoven fabric 1 according to the second embodiment. FIG. 9 is a diagram for explaining the laminated nonwoven fabric 1 according to the second embodiment. FIG. 10 is a diagram for explaining an example of a method for producing a non-uniform basis weight nonwoven fabric. FIG. 11 is a diagram for explaining an example of a method for producing a non-uniform basis weight nonwoven fabric. FIG. 12 is a diagram for explaining an example of a linear high basis weight portion and a linear low basis weight portion. FIG. 13 is a diagram for explaining a conventional laminated nonwoven fabric 1. FIG. FIG. 14 is a diagram for explaining Example 1. FIG. FIG. 15 is a diagram for explaining the second embodiment. FIG. 16 is a diagram for explaining the third embodiment. FIG. 17 is a diagram for explaining the fourth embodiment. FIG. 18 is a diagram for explaining Example 4. FIG. FIG. 19 is a diagram for explaining Comparative Example 1. FIG. FIG. 20 is a diagram for explaining Comparative Example 2. FIG.

Specifically, the present disclosure relates to the following aspects.
[Aspect 1]
A laminated nonwoven fabric for absorbent articles having a first direction, a second direction and a thickness direction orthogonal to each other and stretchable in the first direction,
The laminated nonwoven fabric extends in the first direction between the first nonwoven fabric, the second nonwoven fabric, and the first nonwoven fabric and the second nonwoven fabric in the thickness direction, and is spaced apart in the second direction. and a plurality of elastic members,
At least one of the first nonwoven fabric and the second nonwoven fabric has a non-uniform basis weight alternating structure in which, in the second direction, a high basis weight portion and a low basis weight portion having a basis weight lower than the high basis weight portion are alternately arranged. The amount of non-woven fabric,
Each of the plurality of elastic members is adhered to the first nonwoven fabric and the second nonwoven fabric with an adhesive.
The laminated nonwoven fabric characterized by the following.

In the laminated nonwoven fabric, in a state in which the plurality of elastic members are contracted (hereinafter sometimes simply referred to as a "contracted state"), the first nonwoven fabric and the second nonwoven fabric alternately reciprocate in the thickness direction. to form The multiple folds extend in the second direction and are adjacent in the first direction.

Each of the plurality of pleats has a high basis weight pleat portion formed by the high basis weight portion of the nonuniform basis weight nonwoven and a low basis weight pleat portion formed by the low basis weight portion of the nonuniform basis weight nonwoven. can be partitioned. The high basis weight pleated portion originates from the high basis weight portion, protrudes in the thickness direction of the laminated nonwoven fabric more than the low basis weight pleated portion, and tends to have a larger amplitude in the thickness direction. Conversely, due to the low basis weight pleat portion, the amplitude in the thickness direction tends to be smaller than that of the high basis weight pleat portion.

Due to the high basis weight portion, the high basis weight pleated portion protrudes in the thickness direction and is bulky, so that the laminated nonwoven fabric can be imparted with softness. In addition, in the high basis weight fold portion, due to the magnitude of the amplitude, the distance from the plurality of elastic members having the adhesive increases, and the contact area with the user's skin decreases. However, it becomes difficult to touch the adhesive.

Moreover, since the low basis weight pleated portion has a low basis weight due to the low basis weight portion, it is possible to impart air permeability, particularly air permeability during elongation, to the laminated nonwoven fabric. In addition, in the low basis weight folds, the adhesive may permeate the low basis weight parts, but since the amplitude of the low basis weight folds is small, if the adhesive penetrates the low basis weight parts, However, the permeated adhesive hardly touches the user's skin.
As described above, the laminated nonwoven fabric has air permeability and flexibility, and is less likely to come into contact with an adhesive.

In addition, in the laminated nonwoven fabric, the low basis weight pleated portion has a low basis weight due to the low basis weight portion, so the rigidity (for example, bending rigidity) tends to be lower than the high basis weight pleated portion. . Therefore, when the low basis weight pleat portion deforms the laminated nonwoven fabric from a stretched state (hereinafter, sometimes simply referred to as a “stretched state”) to a contracted state, fold formation when forming folds Multiple folds tend to be aesthetically pleasing because they can act as base points.

[Aspect 2]
Aspect 1. The laminated nonwoven fabric of aspect 1, wherein the nonuniform basis weight nonwoven fabric has the alternating structure in any region in the first direction.

In the laminated nonwoven fabric, the nonuniform basis weight nonwoven fabric has the alternating structure in any region in the first direction, i.e. in all regions. Therefore, the laminated nonwoven fabric has air permeability and softness, and can exhibit the effect of being difficult to come into contact with the adhesive in any region in the first direction, that is, in all regions.

[Aspect 3]
The laminated nonwoven fabric according to aspect 1 or 2, wherein at least a portion of the low basis weight portion overlaps with the plurality of elastic members in the thickness direction.

Generally, in a laminated nonwoven fabric comprising two nonwoven fabrics and a plurality of elastic members arranged therebetween, when the laminated nonwoven fabric is deformed from a stretched state to a contracted state, the plurality of elastic members are first formed. As the member shrinks, the two nonwoven fabrics shrink in accordance with the shrinkage of the plurality of elastic members, and finally, folds are formed in the laminated nonwoven fabric.

In the laminated nonwoven fabric, at least a part of the low basis weight portion is arranged so as to have an overlapping region that overlaps with the plurality of elastic members in the thickness direction. Therefore, when the laminated nonwoven fabric is deformed from a stretched state to a contracted state, fine and regular low basis weight pleats are first formed in the overlap region as the plurality of elastic members contract. Then, using the low basis weight pleat portion formed in the overlap region as a pleat formation base point, the low basis weight portion not forming the overlap region and the high basis weight portion are finely and regularly applied, respectively. Low basis weight pleats and fine and regular high basis weight pleats are formed, and finally fine and regular pleats are formed. As a result, the laminated nonwoven fabric is excellent in appearance.

[Aspect 4]
The laminated nonwoven fabric according to any one of aspects 1 to 3, wherein the high basis weight portion has a high basis weight portion continuous region that is continuous in a direction along the first direction.
In the laminated nonwoven fabric, since the high basis weight part has a high basis weight part continuous region that is continuous in the direction along the first direction, the laminated nonwoven fabric has excellent strength when stretched in the first direction. .

[Aspect 5]
The laminated nonwoven fabric has a plurality of linear high basis weight portions and a plurality of linear low basis weight portions extending in the first direction from the high basis weight portion and the low basis weight portion, respectively. provided as part of
Aspects 1 to 4, wherein each of the plurality of linear high basis weight portions and each of the plurality of linear low basis weight portions are alternately arranged in a direction orthogonal to the direction along the first direction. The laminated nonwoven fabric according to any one of claims 1 to 3.

The laminated nonwoven fabric comprises a predetermined plurality of linear high basis weight portions and a predetermined plurality of linear low basis weight portions. Therefore, when the laminated nonwoven fabric is deformed from the stretched state to the contracted state, (i) the direction along the first direction is parallel to the first direction, the above-mentioned folds A plurality of part forming base points extend parallel to the first direction and are spaced apart in the second direction, and (ii) the direction along the first direction is parallel to the first direction. If not, a plurality of the above-described fold forming base points will be spaced apart in the first direction and the second direction. As a result, the entire pleated portion is densely formed, and the laminated nonwoven fabric is excellent in appearance.

[Aspect 6]
In the laminated nonwoven fabric, the low basis weight portion and the high basis weight portion are divided into a plurality of dot-shaped low basis weight portions each having a predetermined area, and a surrounding high basis weight portion surrounding the dot-shaped low basis weight portions. The laminated nonwoven fabric according to any one of aspects 1 to 4, provided as a bulk part.

The laminated nonwoven fabric has a plurality of predetermined dot-like low basis weight portions and a predetermined surrounding high basis weight portion. Therefore, a plurality of the above-described fold forming base points are spaced apart in the first direction and the second direction. As a result, the entire pleated portion is densely formed, and the laminated nonwoven fabric is excellent in appearance.
Moreover, since the laminated nonwoven fabric has a predetermined surrounding high basis weight portion, it is excellent in strength in the first direction and the second direction, especially in the stretched state.

[Aspect 7]
The laminated nonwoven fabric according to aspect 6, wherein the plurality of dot-shaped low basis weight portions are arranged in a zigzag pattern.
In the laminated nonwoven fabric, since the plurality of dot-shaped low basis weight portions are arranged in a zigzag pattern, the laminated nonwoven fabric has excellent strength in the first direction and the second direction.

[Aspect 8]
The laminated nonwoven fabric according to any one of aspects 1 to 7, wherein the nonuniform basis weight nonwoven fabric is a heat-fusible nonwoven fabric containing heat-fusible fibers.

In the laminated nonwoven fabric, since the nonuniform basis weight nonwoven fabric is a heat-fusible nonwoven fabric containing heat-fusible fibers, the low basis weight portion tends to have a predetermined strength, and the laminated nonwoven fabric is arranged in the first direction. and excellent strength in the second direction.

[Aspect 9]
The laminated nonwoven fabric according to any one of aspects 1 to 8, wherein the heat-fusible nonwoven fabric is a spunbond nonwoven fabric.
In the laminated nonwoven fabric, since the heat-fusible nonwoven fabric is a spunbond nonwoven fabric, the laminated nonwoven fabric has excellent strength in the first direction and the second direction.

[Aspect 10]
The laminated nonwoven fabric according to any one of aspects 1 to 9, wherein the nonuniform basis weight nonwoven fabric does not have through holes.
In the above laminated nonwoven fabric, since the nonuniform basis weight nonwoven fabric does not have through-holes, the user of the laminated nonwoven fabric is less likely to touch the adhesive through the through-holes.

[Aspect 11]
The laminated nonwoven fabric according to any one of aspects 1 to 10, wherein both the first nonwoven fabric and the second nonwoven fabric are the uneven basis weight nonwoven fabric.

In the laminated nonwoven fabric, both the first nonwoven fabric and the second nonwoven fabric are nonuniform basis weight nonwoven fabrics. Therefore, the laminated nonwoven fabric is more excellent in breathability and flexibility, and is less likely to be touched by the adhesive, as compared with the case where one of the first nonwoven fabric and the second nonwoven fabric is a nonuniform basis weight nonwoven fabric.

[Aspect 12]
An absorbent article comprising a member composed of the laminated nonwoven fabric according to any one of aspects 1 to 11.
The absorbent article includes a predetermined member, and the member has excellent air permeability and flexibility, and has the effect of being difficult to touch with an adhesive.

[definition]
・"Follow a given direction" for the target object
As used herein, "along a predetermined direction" with respect to an object extends such that the object has an intersection angle of less than ±90° with a predetermined direction (e.g., first direction, second direction, etc.). means that In addition, when the object extends in a direction along the predetermined direction, the object is preferably 60° or less, more preferably 45° or less, even more preferably 30° or less, and even more preferably, the predetermined direction. have a crossing angle of 20° or less, and even more preferably 5° or less.
In this specification, when the crossing angle is 5° or less, it may be referred to as "parallel to the predetermined direction".

The laminated nonwoven fabric of the present disclosure is described in detail below.
<First Embodiment>
1 to 4 are diagrams for explaining a laminated nonwoven fabric 1 according to one embodiment of the present disclosure (hereinafter referred to as "first embodiment"). Specifically, FIGS. 1 and 2 are a front view and a rear view of the laminated nonwoven fabric 1, respectively. FIG. 3 is a plan view of the first nonwoven fabric 3. FIG. FIG. 4 is a plan view and a cross-sectional view of the laminated nonwoven fabric 1. FIG. Specifically, FIG. 4(a) is a front view of the laminated nonwoven fabric 1, and FIGS. 4(b), 4(c) and 4(d) are respectively IVb- of FIG. 4(a). 4A and 4B are cross-sectional views of IVb cross section, IVc-IVc cross section, and IVd-IVd cross section; In FIG. 3, the basis weight of the air-through nonwoven fabric as the first nonwoven fabric 3 is represented by the density of the fibers, but the length and diameter of the fibers shown in FIG. It does not mean the length and diameter of the fibers of the air-through nonwoven fabric.

The laminated nonwoven fabric 1 has a first direction D ₁ , a second direction D ₂ and a thickness direction T which are perpendicular to each other, and is configured to be stretchable in the first direction D ₁ . The thickness direction is divided into a first thickness direction _T1 on the first nonwoven fabric 3 side and a second thickness direction _T2 on the second nonwoven fabric 5 side, which will be described later.
The laminated nonwoven fabric 1 includes, in the thickness direction T, a first nonwoven fabric 3 , a second nonwoven fabric 5 , and a plurality of elastic members 15 arranged between the first nonwoven fabric 3 and the second nonwoven fabric 5 .
The first non-woven fabric 3 is a non-uniform basis weight non-woven fabric composed of an air-through non-woven fabric containing heat-fusible fibers, and does not have through-holes. The second nonwoven fabric 5 is a uniform basis weight nonwoven fabric having a uniform basis weight, which is composed of a spunbond nonwoven fabric.

The plurality of elastic members 15 extend in the first direction _D1 and are spaced apart in the second direction _D2 . Specifically, as shown in FIG. 1, the plurality of elastic members 15 are arranged at a predetermined first elastic member pitch _P1 in a direction parallel to the second direction _D2 . It is composed of an elastic member 17 and a plurality of second elastic members 19 arranged at a predetermined second elastic member pitch _P2 in a direction parallel to the second direction _D2 . The second elastic member pitch _P2 is configured to be smaller than the first elastic member pitch _P1 . The first elastic member 17 and the second elastic member 19 are made of the same type of rubber thread.

Each of the plurality of elastic members 15 (the first elastic member 17 and the second elastic member 19) is stretched 2.5 times in the first direction _D1 , and the adhesive is applied to the first nonwoven fabric 3 and the second nonwoven fabric 5. (not shown).
In addition, for ease of understanding, the laminated nonwoven fabric 1 has a configuration in which the first nonwoven fabric 3 and the second nonwoven fabric 5 are joined while being shifted in the second direction D ₂ . has a region composed only of the first nonwoven fabric 3 arranged in one of the second directions _D2 , and a region composed only of the second nonwoven fabric 5 arranged in the other direction _D2 . , a region composed of a first nonwoven fabric 3, a plurality of elastic members 15 and a second nonwoven fabric 5 disposed therebetween. The above configuration consisting of three regions is for understanding the invention, and does not limit the structure of the laminated nonwoven fabric of the present disclosure.

The first nonwoven fabric 3 is a nonuniform basis weight nonwoven fabric having an alternating structure in which high basis weight portions 7 and low basis weight portions 11 having a basis weight lower than that of the high basis weight portions 7 are alternately arranged in the second direction _D2 . is. Specifically, in the first nonwoven fabric 3, the high basis weight part 7 is composed of a plurality of linear high basis weight parts 9 extending in the direction parallel to the first direction _D1 , and the low basis weight The portion 11 is composed of a plurality of linear low basis weight portions 13 extending in a direction parallel to the first direction _D1 . The laminated nonwoven fabric 1 has an alternating structure in which each of the plurality of linear high basis weight portions 9 and each of the plurality of linear low basis weight portions 13 are alternately provided in a direction parallel to the second direction _D2. ing.
The plurality of linear high basis weight portions 9 constitute a high basis weight portion continuous region (not shown) that is continuous in a direction parallel to the first direction _D1 .

The plurality of linear high basis weight portions 9 are arranged at a predetermined linear high basis weight portion pitch P in the second direction _D2 .
The linear high basis weight portion pitch P of the plurality of linear high basis weight portions 9 is different from the first elastic member pitch _P1 of the first elastic members 17 and the second elastic member pitch _P2 of the second elastic members 19. So specifically, the following:
Second elastic member pitch P ₂ < pitch of linear high basis weight portion P < first elastic member pitch P ₁
are arranged so as to have a relationship of

As shown in FIG. 4, the laminated nonwoven fabric 1 includes a plurality of first protrusions 27 protruding in the first thickness direction _T1 and a plurality of protrusions 27 protruding in the second thickness direction _T2 . It has a fold 21 with a second protrusion 33 . From the viewpoint of ease of understanding, in FIG. 4A, the regions of the plurality of first convex portions 27 are given a dot pattern.
Each of the plurality of first protrusions 27 and each of the plurality of second protrusions 33 extend in the second direction D2, and the first protrusions 27 and the second protrusions 33 extend in the second direction _D2 . They are alternately arranged in one direction _D1 .

The fold portion 21 is formed by a high basis weight pleat portion 23 overlapping each of the plurality of linear high basis weight portions 9 in the thickness direction T and overlapping each of the plurality of linear low basis weight portions 13 in the thickness direction T. It is divided into a low basis weight pleat portion 25 and a low basis weight pleat portion 25. In addition, each of the plurality of first convex portions 27 is composed of a first high basis weight convex portion 29 that overlaps with each of the plurality of linear high basis weight portions 9 in the thickness direction T, and a plurality of linear low basis weight portions. 13 and the first low basis weight convex portion 31 overlapping in the thickness direction T. As shown in FIG.

In the high basis weight fold portion 23, the height of the first high basis weight convex portion 29 tends to increase due to the height of the basis weight of the linear high basis weight portion 9, and the high basis weight fold portion 23 tends to increase in amplitude. Therefore, the user can feel the softness of the laminated nonwoven fabric 1 . Also, due to the magnitude of the amplitude of the high basis weight pleated portions 23, it is difficult for the user to touch the adhesive.

On the other hand, the low basis weight pleated portions 25 can impart breathability to the laminated nonwoven fabric 1 due to their low basis weight. In the low basis weight pleated portions 25, the adhesive may permeate the linear low basis weight portions 13 of the first nonwoven fabric 3. However, even when it permeates the linear low basis weight portion 13 of the first nonwoven fabric 3, the permeated adhesive hardly touches the user's skin.

In the laminated nonwoven fabric 1, when the laminated nonwoven fabric is stretched in the first direction _D1 (the state in which the plurality of elastic members 15 are stretched in the first direction _D1 ) and then contracted, the plurality of the laminated nonwoven fabrics 1 An overlapping region (not shown) where each of the linear low basis weight portions 13 and each of the plurality of elastic members 15 (the first elastic member 17 and the second elastic member 19) overlap acts as a pleat formation starting point, Fine and regular low basis weight pleats 25 and high basis weight pleats 23 are formed, resulting in dense pleats 21 .

FIG. 13 is a diagram for explaining a conventional laminated nonwoven fabric 1. FIG. The conventional laminated nonwoven fabric 1 has the same configuration as the laminated nonwoven fabric 1 in the first embodiment, except that the first nonwoven fabric 3 is a uniform basis weight nonwoven fabric composed of an air-through nonwoven fabric.
In other words, in the conventional laminated nonwoven fabric 1, the first nonwoven fabric 3 and the second nonwoven fabric 5 are uniform basis weight nonwoven fabrics composed of air-through nonwoven fabrics and uniform basis weight nonwoven fabrics composed of spunbonded nonwoven fabrics, respectively.

In the conventional laminated nonwoven fabric 1, since each of the first nonwoven fabric 3 and the second nonwoven fabric 5 is a uniform basis weight nonwoven fabric, the laminated nonwoven fabric is stretched in the first direction D ₁ (the plurality of elastic members 15 are stretched in the first direction). When forming the pleats 21 by contracting from the state of being stretched in one direction _D1 , the pleats 21 to be formed are random and large, and are inferior in appearance because there is no pleat forming starting point.

<Second embodiment>
5 to 7 are diagrams for explaining a laminated nonwoven fabric 1 according to another embodiment of the present disclosure (hereinafter referred to as "second embodiment"). Specifically, FIGS. 5 and 6 are a front view and a rear view of the laminated nonwoven fabric 1, respectively. FIG. 7 is a plan view of the first nonwoven fabric 3. FIG. In FIG. 7, the basis weight of the spunbond nonwoven fabric as the first nonwoven fabric 3 is represented by the density of the fibers, but the length and diameter of the fibers shown in FIG. does not refer to the fiber length and diameter of the spunbond nonwoven fabric.

The laminated nonwoven fabric 1 has a first direction D ₁ , a second direction D ₂ and a thickness direction T which are perpendicular to each other, and is configured to be stretchable in the first direction D ₁ .
The laminated nonwoven fabric 1 includes, in the thickness direction T, a first nonwoven fabric 3 , a second nonwoven fabric 5 , and a plurality of elastic members 15 arranged between the first nonwoven fabric 3 and the second nonwoven fabric 5 .

The first nonwoven fabric 3 is a nonuniform basis weight nonwoven fabric composed of a spunbond nonwoven fabric containing heat-fusible fibers, and does not have through holes. The second nonwoven fabric 5 is a uniform basis weight nonwoven fabric composed of a spunbond nonwoven fabric.
The plurality of elastic members 15 in the second embodiment are the same as the plurality of elastic members 15 in the first embodiment, so description thereof will be omitted.

As in the first embodiment, in the laminated nonwoven fabric 1 according to the second embodiment, for the sake of understanding, the first nonwoven fabric 3 and the second nonwoven fabric 5 are joined while being shifted in the second direction _D2 . an area composed only of the first nonwoven fabric 3 arranged in one of the second directions _D2 , and an area composed only of the second nonwoven fabric 5 arranged in the other of the second directions _D2 ; A first nonwoven fabric 3, a plurality of elastic members 15 and a region composed of a second nonwoven fabric 5 are arranged therebetween. The above configuration consisting of three regions is for understanding the invention, and does not limit the structure of the laminated nonwoven fabric of the present disclosure.

The first nonwoven fabric 3 is a nonuniform basis weight nonwoven fabric having an alternating structure in which high basis weight portions 7 and low basis weight portions 11 having a basis weight lower than that of the high basis weight portions 7 are alternately arranged in the second direction _D2 . is. Further, in the first nonwoven fabric 3, the low basis weight portion 11 and the high basis weight portion 7 are a plurality of circular low basis weight portions 101 each having a predetermined area, and a plurality of circular low basis weight portions 101 and a surrounding area surrounding the circular low basis weight portion 101. and a high basis weight portion 103 .

The plurality of circular low basis weight portions 101 are arranged in a zigzag pattern in the first direction _D1 and the second direction _D2 . Each of the plurality of circular low basis weight portions 101 has a diameter greater than the distance between two adjacent circular low basis weight portions 101 . Therefore, the laminated nonwoven fabric 1 has an alternating structure having circular low basis weight portions 101 and surrounding high basis weight portions 103 alternately in the second direction D ₂ , and the alternating structure can be arbitrarily arranged in the first direction D ₁ . (all regions).
In addition, the surrounding high basis weight portion 103 is a high basis weight portion continuous region 105 that is continuous in a direction along the first direction _D1 , specifically, in a direction having an intersection angle of 45° with the first direction _D1 . (that is, an area without the circular low basis weight portion 101).

For the same reason as the laminated nonwoven fabric 1 according to the first embodiment, the laminated nonwoven fabric 1 according to the second embodiment has air permeability and flexibility, and is less likely to come into contact with an adhesive.

<Third Embodiment>
8 and 9 are diagrams for explaining a laminated nonwoven fabric 1 according to yet another embodiment of the present disclosure (hereinafter referred to as "third embodiment"). Specifically, FIGS. 8 and 9 are front and rear views of the laminated nonwoven fabric 1, respectively.
In the laminated nonwoven fabric 1 according to the third embodiment, the second nonwoven fabric 5 is a uniform basis weight nonwoven fabric composed of a spunbond nonwoven fabric, and the first nonwoven fabric 3 in the second embodiment, specifically, heat-fusible fibers. It is the same as the laminated nonwoven fabric 1 according to the first embodiment, except that it is changed to a nonuniform basis weight nonwoven fabric composed of a spunbond nonwoven fabric.

For the same reason as the laminated nonwoven fabric 1 according to the first embodiment, the laminated nonwoven fabric 1 according to the third embodiment has air permeability and flexibility, and is less likely to come into contact with an adhesive.

<Other embodiments>
Yet another embodiment of the present disclosure includes the following first and second nonwoven combinations.
(i)
First nonwoven fabric:
A spunbond nonwoven fabric having a plurality of linear high basis weight portions and a plurality of linear low basis weight portions Second nonwoven fabric:
Spunbond nonwoven fabric having a plurality of linear high basis weight portions and a plurality of linear low basis weight portions

The laminated nonwoven fabric of the present disclosure is a laminated nonwoven fabric for absorbent articles that has a first direction, a second direction, and a thickness direction perpendicular to each other and is stretchable in the first direction.
Further, in the thickness direction, the laminated nonwoven fabric of the present disclosure extends in the first direction between the first nonwoven fabric, the second nonwoven fabric, and between the first nonwoven fabric and the second nonwoven fabric, and is spaced apart in the second direction. and a plurality of elastic members arranged in parallel with each other.

At least one of the first nonwoven fabric and the second nonwoven fabric has a non-uniform basis weight alternating structure in which high basis weight portions and low basis weight portions having a basis weight lower than the high basis weight portions alternate in the second direction. It is a non-woven fabric.
In this specification, in order to distinguish a nonwoven fabric that does not have a high basis weight portion and a low basis weight portion having a basis weight lower than the high basis weight portion from a “nonuniform basis weight nonwoven fabric”, the term “uniform It may be referred to as "basis weight nonwoven fabric". The unevenness of the nonwoven fabric does not correspond to the high basis weight portion and the low basis weight portion.

Each of the first nonwoven fabric and the second nonwoven fabric can be a nonwoven fabric used in the technical field of absorbent articles, regardless of whether it corresponds to a nonuniform basis weight nonwoven fabric or a uniform basis weight nonwoven fabric. Examples of the nonwoven fabrics include spunbond nonwoven fabrics, meltblown nonwoven fabrics, SMS nonwoven fabrics, point-bond nonwoven fabrics, spunlace nonwoven fabrics (wet and dry), and air-through nonwoven fabrics.

When the first nonwoven fabric and/or the second nonwoven fabric are uneven basis weight nonwoven fabrics, the first nonwoven fabric and/or the second nonwoven fabric as the nonuniform basis weight nonwoven fabrics are heat-sealable nonwoven fabrics containing heat-fusible fibers. It is preferably a flexible nonwoven fabric. As a result, the low basis weight portion also tends to have a predetermined strength, and the laminated nonwoven fabric tends to be excellent in strength in the first direction and the second direction. Examples of the heat-fusible nonwoven fabric include air-through nonwoven fabrics and spunbond nonwoven fabrics, with spunbond nonwoven fabrics being preferred. As a result, the laminated nonwoven fabric tends to have excellent strength in the first direction and the second direction.

When the first nonwoven fabric and/or the second nonwoven fabric are uneven basis weight nonwoven fabrics, the first nonwoven fabric and/or the second nonwoven fabric as the uneven basis weight nonwoven fabric can be produced as follows.
An air-through nonwoven fabric as a nonuniform basis weight nonwoven fabric can be produced, for example, by the methods described in JP-A-2008-002034, JP-A-2008-025078, and the like.

A spunbond nonwoven fabric as a nonuniform basis weight nonwoven fabric can be produced, for example, according to the method described in JP-A-2017-206803. Specifically, the first nonwoven fabric 3 in the first embodiment extends in the transport direction MD as shown in FIG. 10 and is spaced apart in the cross direction CD orthogonal to the transport direction MD. , with a filter belt 201 having a plurality of closures 203 . In addition, the first nonwoven fabric 3 in the second embodiment is a filter belt having a plurality of substantially circular closing portions 203 arranged in a staggered manner in the conveying direction MD and the crossing direction CD as shown in FIG. 201.

In the laminated nonwoven fabric of the present disclosure, each of the nonuniform basis weight nonwoven fabric and the uniform basis weight nonwoven fabric may or may not have through holes, but should not have through holes. is preferred. This is because, if the laminated nonwoven fabric has through holes, the user may touch the adhesive through the through holes.

Each of the first nonwoven fabric and the second nonwoven fabric is preferably 5 to 50 g/m ² , more preferably 7 to 40 g/m 2 , and more preferably 7 to 40 g/m ² , regardless of whether it is a nonuniform basis weight nonwoven fabric or a uniform basis weight nonwoven fabric. It may preferably have a basis weight of 10 to 30 g/m ² . This is from the viewpoint of the effects of the present disclosure.
In addition, when each of the first nonwoven fabric and the second nonwoven fabric is a nonuniform basis weight nonwoven fabric, the above basis weight means an average basis weight.

For each of the plurality of elastic members, those used in the technical field of absorbent articles can be adopted as they are.
The draw ratio for bonding each of the plurality of elastic members to the first nonwoven fabric and the second nonwoven fabric is not particularly limited, and a draw ratio commonly used in the field of absorbent articles can be adopted. The draw ratio varies depending on the part of the absorbent article in which the laminated nonwoven fabric of the present disclosure is used, but is preferably 1.3 to 5 times, more preferably 1.5 to 4 times, and still more preferably 1.5 times to 1.5 times. It is in the range of 8 times to 3.5 times.

The intervals in the second direction of the plurality of elastic members are the same as the intervals used in the technical field of absorbent articles, and are preferably arranged at an elastic member pitch of 1 to 15 mm, and more preferably 2 to 10 mm. be able to.
When the laminated nonwoven fabric of the present disclosure is used, for example, as a waist gather forming member for forming the waist gather of a disposable diaper, the elastic member pitch can be, for example, 5 to 15 mm. Further, when the laminated nonwoven fabric of the present disclosure is used as a fit gather forming member for forming a fit gather of a disposable diaper, for example, the elastic member pitch can be, for example, 3 to 10 mm.

In the laminated nonwoven fabric of the present disclosure, each of the plurality of elastic members is adhered to the first nonwoven fabric and the second nonwoven fabric with an adhesive.
In the laminated nonwoven fabric of the present disclosure, the first nonwoven and the second nonwoven may be unbonded and may be bonded, eg, glued together.

In the laminated nonwoven fabric of the present disclosure, the nonuniform basis weight nonwoven fabric has the above-described alternating structure (in the second direction, alternating high basis weight portions and low basis weight portions having a lower basis weight than the high basis weight portions. alternating structures) in certain regions in the first direction and in any region (ie, all regions) in the first direction.
By having the non-uniform basis weight non-woven fabric have the above-described alternating structure in an arbitrary region in the first direction, the laminated non-woven fabric has the effect of having air permeability and flexibility and being difficult to touch the adhesive in the first direction. can be exerted in any region, that is, in all regions.

In the laminated nonwoven fabric of the present disclosure, the high basis weight part preferably has a high basis weight part continuous region that is continuous in the direction along the first direction. Thereby, when the laminated nonwoven fabric is stretched in the first direction, its strength can be excellent. When the high basis weight portion is a plurality of linear high basis weight portions described later, the axes of the plurality of linear high basis weight portions are continuous in the first direction. preferable.

The laminated nonwoven fabric of the present disclosure includes a plurality of linear high basis weight portions each extending in the first direction from the high basis weight portion and the low basis weight portion in the nonuniform basis weight nonwoven fabric. and a plurality of linear low basis weight portions. Each of the plurality of linear high basis weight portions and each of the plurality of linear low basis weight portions are alternately arranged in a direction perpendicular to the direction along the first direction.

Each of the plurality of linear high basis weight portions and each of the plurality of linear low basis weight portions have an axis extending in a predetermined direction, for example, along a first direction. Linear, curvilinear and zigzag shapes can be mentioned.

FIG. 12(a) is a diagram for explaining a non-uniform basis weight nonwoven fabric 301 having a plurality of linear high basis weight portions 303 and a plurality of linear low basis weight portions 305. FIG. be. Each of the plurality of linear high basis weight portions 303 and each of the plurality of linear low basis weight portions 305 has a linear axis A and is orthogonal to axis A. are arranged alternately in the direction of In addition, a dot pattern is applied to the regions of the plurality of linear high basis weight portions 303 .

FIG. 12(b) is a diagram for explaining a non-uniform basis weight nonwoven fabric 301 having a plurality of curved linear high basis weight portions 303 and a plurality of curved linear low basis weight portions 305. FIG. be. Each of the plurality of curved linear high basis weight portions 303 and each of the plurality of curved linear low basis weight portions 305 has a linear axis A and is orthogonal to axis A. are arranged alternately in the direction of In addition, a dot pattern is applied to the regions of the plurality of linear high basis weight portions 303 .

FIG. 12(c) is a diagram for explaining a non-uniform basis weight nonwoven fabric 301 having a plurality of zigzag linear high basis weight portions 303 and a plurality of zigzag linear low basis weight portions 305. FIG. be. Each of the plurality of zigzag linear high basis weight portions 303 and each of the plurality of zigzag linear low basis weight portions 305 has a linear axis A and is perpendicular to the axis A. are arranged alternately in the direction of In addition, a dot pattern is applied to the regions of the plurality of linear high basis weight portions 303 .

In the laminated nonwoven fabric of the present disclosure, the above-mentioned axis A can extend in a direction along the first direction, and the direction orthogonal to axis A can extend in a direction orthogonal to the direction along the first direction.

Preferably, the plurality of linear high basis weight portions are arranged at a predetermined linear high basis weight portion pitch in a direction perpendicular to the axis (a direction perpendicular to the direction along the first direction).
The linear high basis weight portion pitch is, for example, preferably 0.2 to 4.0 times, more preferably 0.4 to 3.0 times, and even more preferably 0 times the elastic member pitch of the plurality of elastic members. .6 to 2.5 times. As a result, the laminated nonwoven fabric of the present disclosure has air permeability and softness, and is less likely to come into contact with the adhesive.

In the laminated nonwoven fabric of the present disclosure, each of the plurality of linear high basis weight portions is a linear high basis weight portion extending in a direction parallel to the first direction, and the plurality of linear high basis weight portions are , when arranged parallel to the second direction at a predetermined linear high basis weight portion pitch (in FIG. 12(a), when the first direction (not shown) is parallel to the axis A), Preferably, the linear high basis weight portion pitch P is different from the elastic member pitch.

As a result, at least a portion of the plurality of linear low basis weight portions (low basis weight portions) is likely to have an overlapping region that overlaps with the plurality of elastic members in the thickness direction. When the laminated nonwoven fabric is deformed from the stretched state to the contracted state, fine and regular low-basis-weight folds are likely to be formed in the overlapping region, and the entire folds are likely to be densely formed.

In the laminated nonwoven fabric of the present disclosure, if each of the plurality of linear high basis weight portions (plurality of linear low basis weight portions) is not linear, for example, curved or zigzag, the linear The high basis weight portion pitch may be the same as or different from the elastic member pitch. This is because at least some of the plurality of linear low basis weight portions (low basis weight portions) are likely to have overlapping regions that overlap with the plurality of elastic members in the thickness direction.

The laminated nonwoven fabric of the present disclosure includes a plurality of dot-shaped low basis weight portions and the dot-shaped It can be provided as a surrounding high basis weight portion surrounding the low basis weight portion.
The shape of the plurality of dot-shaped low basis weight portions is not particularly limited, and examples thereof include circular, elliptical, polygonal (eg, triangular, rectangular, and pentagonal), and star shapes.

In the uneven basis weight nonwoven fabric, the plurality of dot-shaped low basis weight portions are arranged in a plurality of first direction, each of which is aligned along the first direction (preferably parallel to the first direction). direction) with a predetermined pitch in the first direction. Moreover, it is preferable that the plurality of first-direction arrays are arranged at a predetermined second-direction pitch in a direction along the second direction (preferably in a direction parallel to the second direction). Thereby, when the laminated nonwoven fabric is stretched in the first direction, its strength can be excellent.

Moreover, it is preferable that the pitch in the first direction is shorter than the length of the dot-shaped low basis weight portions (the length in the direction along the first direction). In addition, it is preferable that two adjacent first-direction arrays are arranged so that the positions of the dot-shaped low basis weight portions do not match in the direction along the second direction, and in the direction along the second direction, It is more preferable that one of the two adjacent first-direction-arrangements has a first-direction-pitch portion and the other dot-like low-basis-weight portion overlaps. As a result, the laminated nonwoven fabric has air permeability and flexibility, and is less likely to come into contact with the adhesive.
The plurality of dot-shaped low basis weight portions can be arranged, for example, in a zigzag pattern.

In the laminated nonwoven fabric of the present disclosure, at least one of the first nonwoven and the second nonwoven is the nonuniform basis weight nonwoven described above, and both the first nonwoven and the second nonwoven are the nonuniform basis weight nonwovens described above. may This is from the viewpoint of the effects of the present disclosure.

The laminated nonwoven fabric of the present disclosure is for absorbent articles, and examples of the absorbent article include disposable diapers, sanitary shorts-type napkins, and disposable shorts.
When the absorbent article is a disposable diaper, the laminated nonwoven fabric is used as a waist gather forming member for forming waist gathers, a fit gather forming member for forming fitted gathers, and the like.

Laminated nonwoven fabrics of the present disclosure can be manufactured by methods known in the art. For example, the laminated nonwoven fabric of the present disclosure can be produced by applying an adhesive to the first nonwoven fabric and the second nonwoven fabric and joining them with a plurality of elastic members stretched at a predetermined ratio interposed therebetween.

The present disclosure will be described below using examples, but the present disclosure is not limited to these examples.
[Example 1]
Under the following conditions, laminated nonwoven fabric No. 1 was produced. Laminated nonwoven fabric No. 14 shows an image of the first nonwoven fabric side of No. 1. Laminated nonwoven fabric No. 1 is similar to the laminated nonwoven fabric 1 according to the first embodiment, except for the elastic member pitch.
[First nonwoven fabric]
・Type: Air-through non-woven fabric (non-uniform basis weight non-woven fabric, average basis weight: 25 g/m ² )
・Linear high basis weight part pitch: 4.2 mm
[Second nonwoven fabric]
・Type: Spunbond nonwoven fabric (uniform basis weight nonwoven fabric, basis weight: 15 g/m ² )
[Elastic member]
・Type: Spandex 470 Dtex
・Elastic member pitch: 3.0 mm
・Stretch ratio: 2.5 times

[Example 2]
Under the following conditions, laminated nonwoven fabric No. 2 was produced. Laminated nonwoven fabric No. 2 is shown in FIG. Laminated nonwoven fabric No. 2 is similar to the laminated nonwoven fabric 1 according to the second embodiment, except for the elastic member pitch.
[First nonwoven fabric]
・Type: Spunbond nonwoven fabric (nonuniform basis weight nonwoven fabric, basis weight: 15 g/m ² )
・Diameter of circular high basis weight part: 9.9 mm
[Second nonwoven fabric]
・Type: Spunbond nonwoven fabric (uniform basis weight nonwoven fabric, basis weight: 13 g/m ² )
[Elastic member]
・Type: Spandex 470 Dtex
・Elastic member pitch: 5.0 mm
・Stretch ratio: 2.5 times

[Example 3]
Under the following conditions, laminated nonwoven fabric No. 3 was produced. Laminated nonwoven fabric No. 16 shows an image of the first nonwoven fabric side of No. 3. Laminated nonwoven fabric No. 3 is the same as the laminated nonwoven fabric 1 according to the first embodiment except for the type of the first nonwoven fabric and the elastic member pitch.
[First nonwoven fabric]
・Type: Spunbond nonwoven fabric (nonuniform basis weight nonwoven fabric, basis weight: 15 g/m ² )
・Linear high basis weight part pitch: 3.9 mm
[Second nonwoven fabric]
・Type: Spunbond nonwoven fabric (uniform basis weight nonwoven fabric, basis weight: 13 g/m ² )
[Elastic member]
・Type: Spandex 470 Dtex
・Elastic member pitch: 5.0 mm
・Stretch ratio: 2.5 times

[Example 4]
Under the following conditions, laminated nonwoven fabric No. 4 was produced. Laminated nonwoven fabric No. 4 are shown in FIGS. 17 and 18, respectively, on the first nonwoven fabric side and the second nonwoven fabric side. Laminated nonwoven fabric No. 4, each of the first nonwoven fabric and the second nonwoven fabric is the same as the first nonwoven fabric of the laminated nonwoven fabric 1 according to the first embodiment.
[First nonwoven fabric]
・Type: Spunbond nonwoven fabric (nonuniform basis weight nonwoven fabric, average basis weight: 15 g/m ² )
・Linear high basis weight part pitch: 3.9 mm
[Second nonwoven fabric]
・Type: Spunbond nonwoven fabric (nonuniform basis weight nonwoven fabric, average basis weight: 15 g/m ² )
・Linear high basis weight part pitch: 3.9 mm
[Elastic member]
・Type: Spandex 470 Dtex
・Elastic member pitch: 3.0 mm
・Stretch ratio: 2.5 times

[Comparative Example 1]
Under the following conditions, laminated nonwoven fabric No. 5 was produced. Laminated nonwoven fabric No. FIG. 19 shows an image of the first nonwoven fabric side of No. 5.
[First nonwoven fabric]
・Type: Air-through nonwoven fabric (uniform basis weight nonwoven fabric, basis weight: 25 g/m ² )
[Second nonwoven fabric]
・Type: Spunbond nonwoven fabric (uniform basis weight nonwoven fabric, basis weight: 15 g/m ² )
[Elastic member]
・Type: Spandex 470 Dtex
・Elastic member pitch: 3.0 mm
・Stretch ratio: 2.5 times

[Comparative Example 2]
Under the following conditions, laminated nonwoven fabric No. 6 was produced. Laminated nonwoven fabric No. FIG. 20 shows an image of the first nonwoven fabric side of No. 6.
[First nonwoven fabric]
・Type: Spunbond nonwoven fabric (uniform basis weight nonwoven fabric, basis weight: 15 g/m ² )
[Second nonwoven fabric]
・Type: Spunbond nonwoven fabric (uniform basis weight nonwoven fabric, basis weight: 13 g/m ² )
[Elastic member]
・Type: Spandex 470 Dtex
・Elastic member pitch: 5.0 mm
・Stretch ratio: 2.5 times

REFERENCE SIGNS LIST 1 laminated nonwoven fabric 3 first nonwoven fabric 5 second nonwoven fabric 7 high basis weight portion 9 linear high basis weight portion 11 low basis weight portion 13 linear low basis weight portion 15 elastic member 17 first elastic member 19 second elastic member 21 folds Part 23 High basis weight pleated portion 25 Low basis weight pleated portion 27 First convex portion 29 First high basis weight convex portion 31 First low basis weight convex portion 33 Second convex portion _D1 First direction _D2 Second direction T Thickness direction _T1 First thickness direction _T2 Second thickness direction

Claims (13)

A laminated nonwoven fabric for absorbent articles having a first direction, a second direction and a thickness direction orthogonal to each other and stretchable in the first direction,
The laminated nonwoven fabric extends in the first direction between the first nonwoven fabric, the second nonwoven fabric, and the first nonwoven fabric and the second nonwoven fabric in the thickness direction, and is spaced apart in the second direction. and a plurality of elastic members,
At least one of the first nonwoven fabric and the second nonwoven fabric has a non-uniform basis weight alternating structure in which, in the second direction, a high basis weight portion and a low basis weight portion having a basis weight lower than the high basis weight portion are alternately arranged. The amount of non-woven fabric,
each of the plurality of elastic members is adhered to the first nonwoven fabric and the second nonwoven fabric in a stretched state using an adhesive;
The laminated nonwoven fabric characterized by the following. A laminated nonwoven fabric for absorbent articles having a first direction, a second direction and a thickness direction orthogonal to each other and stretchable in the first direction,
The laminated nonwoven fabric extends in the first direction between the first nonwoven fabric, the second nonwoven fabric, and the first nonwoven fabric and the second nonwoven fabric in the thickness direction, and is spaced apart in the second direction. and a plurality of elastic members,
At least one of the first nonwoven fabric and the second nonwoven fabric has a non-uniform basis weight alternating structure in which, in the second direction, a high basis weight portion and a low basis weight portion having a basis weight lower than the high basis weight portion are alternately arranged. The amount of non-woven fabric,
each of the plurality of elastic members is adhered to the first nonwoven fabric and the second nonwoven fabric with an adhesive;
The laminated nonwoven fabric has a plurality of folds in a state in which the plurality of elastic members are contracted,
the plurality of pleat portions comprising a high basis weight pleat portion located in the high basis weight portion and a low basis weight pleat portion located in the low basis weight portion; the amplitude in the thickness direction is greater than the amplitude in the thickness direction of the low basis weight pleat portion;
The laminated nonwoven fabric characterized by the following. 3. The laminated nonwoven fabric of claim 1 or 2, wherein the nonuniform basis weight nonwoven fabric has the alternating structure in any region in the first direction. The laminated nonwoven fabric according to any one of claims 1 to 3, wherein at least a portion of the low basis weight portion overlaps the plurality of elastic members in the thickness direction. The laminated nonwoven fabric according to any one of claims 1 to 4, wherein the high basis weight portion has a high basis weight portion continuous region that is continuous in a direction along the first direction. The laminated nonwoven fabric has a plurality of linear high basis weight portions and a plurality of linear low basis weight portions extending in the first direction from the high basis weight portion and the low basis weight portion, respectively. provided as part of
Each of the plurality of linear high basis weight portions and each of the plurality of linear low basis weight portions are alternately arranged in a direction perpendicular to the direction along the first direction. The laminated nonwoven fabric according to any one of . The laminated nonwoven fabric comprises a plurality of dot-shaped low basis weight portions each having a predetermined area, and a surrounding high basis weight portion surrounding the dot-shaped low basis weight portions. Laminated nonwoven fabric according to any one of claims 1 to 5, provided as a bulk part. The laminated nonwoven fabric according to claim 7, wherein the plurality of dot-like low basis weight portions are arranged in a staggered pattern. The laminated nonwoven fabric according to any one of claims 1 to 8, wherein the nonuniform basis weight nonwoven fabric is a heat-fusible nonwoven fabric containing heat-fusible fibers. 10. The laminated nonwoven fabric according to claim 9, wherein said heat-fusible nonwoven fabric is a spunbond nonwoven fabric. The laminated nonwoven fabric according to any one of claims 1 to 10, wherein said nonuniform basis weight nonwoven fabric does not have through holes. The laminated nonwoven fabric according to any one of claims 1 to 11, wherein both the first nonwoven fabric and the second nonwoven fabric are said nonuniform basis weight nonwoven. An absorbent article comprising a member composed of the laminated nonwoven fabric according to any one of claims 1-12.

Images