KR101779402B1 - Disposable absorbent articles with improved fluid distribution and anti-aggreation - Google Patents

Abstract

Disposable absorbent articles comprising an absorbent core between an upper sheet and a liquid impervious backsheet, the absorbent core comprising at least two embossed absorbent cores, Wherein at least a portion of the lapping sheet is wrapped with a lapping sheet having an embossed lapping property, wherein the absorbent core has an improved absorption diffusion and aggregation prevention property, thereby increasing the specific surface area of the absorbent core to the urine, The frictional force between the sheet and the absorbent core is increased, thereby providing an advantageous effect of preventing aggregation of the absorbent core.

Description

[0001] Disposable absorbent articles with improved fluid distribution and anti-aggreation [

The present invention relates to a disposable absorbent article, and relates to a disposable absorbent article having improved absorption diffusion and aggregation prevention properties.

Disposable absorbent articles absorb body fluids such as blood, urine, and menses, and are hygienic and convenient to use.

Generally, disposable absorbent articles are articles that absorb urine, feces, menstrual secretions, and vaginal secretions that absorb secretions (e.g., urine, blood, menstrual blood, etc.) excreted by the various physiological actions of the wearer And more specifically, disposable diapers, sanitary napkins, panty liner, etc. used by infants or incontinent persons can be exemplified.

Such a disposable absorbent article increases the absorbent capacity of the absorbent core to quickly absorb the secretions (e.g., urine, blood, menstrual blood, etc.) excreted by the wearer and provide comfort during wear, Has been developed into an ultra-thin form.

As the disposable absorbent article is developed into an ultra-thin form, the comfort and comfort of the consumer is increased. However, due to the decrease of the pulp amount, the fixing function of the superabsorbent resin of the pulp in the absorbent core is weakened, There is a problem that the user experiences a lot of inconvenience due to the aggregation due to the absorption swelling phenomenon.

Accordingly, it is an object of the present invention to provide a disposable absorbent article that can increase the specific surface area of the absorbent core to improve the absorption diffusion of the absorbent core and prevent the aggregation phenomenon .

According to an aspect of the present invention, there is provided a disposable absorbent article comprising a body including an absorbent core between an upper sheet and a liquid-impervious back sheet, the absorbent core comprising a wrapping sheet having at least two embossments, And at least a part of the absorbent article is wrapped around the absorbent article.

Preferably, the at least one embossed area is formed within a range of 30% to 100% of the total area of the lapping sheet.

Preferably, the at least one embossed area is formed within a range of 50% to 100% of the surface area of the lapping sheet.

Preferably, the embossed shape of the wrapping sheet includes a convex embossed shape convexly formed toward the absorbent core in a state of wrapping the absorbent core, a concave embossed shape recessed toward the absorbent core in a state of wrapping the absorbent core, And a shape in which the convex embossed shape and the concave embossed shape are mixed with each other.

Preferably, the at least two sheets of the lapping sheet are laminated or overlapped.

Preferably, the distance between the centers of gravity of the adjacent embossments is within 1 mm to 20 mm.

Preferably, the embossing height of the wrapping sheet is in the range of 0.02 mm to 5 mm.

Preferably, the basis weight of the wrapping sheet is formed within a range of 10 g / m 2 to 80 g / m 2.

Preferably, the air permeability of the wrapping sheet is within a range of 5 cm 2 / cm 3 / sec to 10,000 cm 2 / cm 3 / sec.

Preferably, the size of the emboss is formed so that the distance from the center of gravity of the emboss to the outermost side is within a range of 0.2 mm to 10 mm.

Preferably, the at least two embosses are formed such that a line connecting the center of gravity of the adjacent embossing and a line parallel to the longitudinal direction of the absorbing core are not parallel.

The disposable absorbent article according to the present invention provides an advantageous effect of increasing the specific surface area of the absorbent core to the urine and thereby accelerating the absorption diffusion by constituting the wrapping sheet in which the embossment is formed to wrap the absorbent core do.

In addition, the disposable absorbent article according to the present invention provides an advantageous effect of increasing the friction force between the embossed lapping sheet and the absorbent core to prevent aggregation of the absorbent core.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view of a disposable absorbent article as viewed from the direction of a back sheet,
Fig. 2 is a cross-sectional view of W-W 'of Fig. 1 showing a preferred embodiment of the disposable absorbent article according to the present invention. Fig. 2 is an exploded perspective view of a wrapping sheet, One section,
Fig. 3 is a cross-sectional view of W-W 'in Fig. 1, showing another preferred embodiment of the disposable absorbent article according to the present invention. Fig. 3 is a sectional view for explaining a concave- ,
Fig. 4 is a cross-sectional view of W-W 'in Fig. 1, showing another preferred embodiment of the disposable absorbent article according to the present invention. Fig. 4 is a cross- ,
Fig. 5 is a cross-sectional view of W-W 'in Fig. 1 showing another preferred embodiment of the disposable absorbent article according to the present invention. Fig. 5 is a cross-sectional view for explaining a concave- ,
6 is a plan view for explaining the constitution of the wrapping sheet of the disposable absorbent article according to the present invention,
Fig. 7 is an enlarged view of G in Fig. 6 showing the arrangement of the embossment of the wrapping sheet shown in Fig. 6,
Fig. 6 is an enlarged view of G shown in Fig. 6 for explaining the distance between centers of gravity of the embossment of the wrapping sheet shown in Fig. 6,
Fig. 9 is a side cross-sectional view of G of Fig. 6 to explain the emboss height of the wrapping sheet shown in Fig. 6,
10 is a graph comparing absorption rates of a conventional disposable absorbent article and an embodiment,
11 is a graph comparing the diffusion rates of a conventional disposable absorbent article and an embodiment,
12 is a graph comparing the usability satisfaction and the cumulative satisfaction of the conventional disposable absorbent article with the embodiment.

Hereinafter, a preferred embodiment of the disposable absorbent article having improved absorption diffusivity and aggregation-leaving properties according to the present invention will be described.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein; It is intended that the disclosure of the present invention be limited only by the terms of the appended claims.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

2 is a cross-sectional view taken along the line W-W 'in Fig. 1, showing a preferred embodiment of the disposable absorbent article according to the present invention Which is a cross-sectional view for explaining a wrapping sheet of a convex shape which surrounds the entire absorbent core.

Before describing a preferred embodiment of the present invention, referring to Figs. 1 and 2, a general configuration of the disposable absorbent article will be briefly described.

1 and 2, a general configuration of the disposable absorbent article includes an upper sheet 10 that directly contacts the wearer's skin when worn, a back sheet 30 that forms an outer surface when worn, And an absorbent core (20) positioned between the sheet (10) and the back sheet (30). Specifically, it may be configured to include a waist band WB having elastic means, a leg band, and fastening means F1 and F2.

The main body 10 of the disposable absorbent article has an appearance of an hourglass shape divided into a front waist portion Fr, a crotch portion M, and a rear waist portion Re. The outer shape of the main body does not necessarily have to be formed symmetrically with respect to left and right and front and rear, but preferably has a symmetrical structure.

In order to facilitate understanding of the present invention, as shown in Fig. 1, first, a reference line L indicating the longitudinal direction of the disposable absorbent article is defined. This reference line L is an imaginary line representing the longitudinal direction of the disposable absorbent article.

2, the upper sheet 10 is disposed on the surface of the absorbent core 20 formed in a direction in contact with the skin of the wearer, and is attached to the absorbent core 20 through hot melt adhesive, heat or ultrasonic waves, And the back sheet 30 as shown in Fig.

Hereinafter, the absorbent core 20 and the back sheet 30 adhered to the top sheet 10 will be briefly described.

The upper sheet 10 is made of a material which is soft and does not irritate the wearer's skin. In addition, the topsheet 10 may be made of a thermoplastic film that is liquid permeable, readily permeable to liquids (e.g., urine), and formed into woven and nonwoven materials or perforated materials. Suitable fabric and nonwoven materials can be natural fibers, synthetic fibers, or a mixture of natural and synthetic fibers.

The absorbent core 20 is positioned between the topsheet 10 and the backsheet 30 and absorbs fluid rapidly through the topsheet 10 to prevent the absorbed body fluid from contacting the skin again It is responsible for holding body fluids. The absorbent core 20 may be composed of a fluff pulp, a superabsorbent polymer, and a tissue 21 from the viewpoint of material, and may have various sizes and shapes For example, rectangular, hourglass, "T", asymmetric, etc.). Bubbling band flaps B1, B2, B3 and B4 are formed on the left and right sides of the outer side of the absorbent core 20 to form a pocket shape. This is to prevent leakage of the body fluid that is released from the absorbent core 20. [ That is, the pseudo band flaps B1, B2, B3, and B4 are formed by standing up by the elastic band elastic body Ba and forming a pocket shape outside the absorbent core 20, , To prevent the body fluids from leaking.

The back sheet 30 is disposed adjacent to the surface of the absorbent core 20 formed in a direction opposite to the direction of contact with the skin of the wearer and is attached to the absorbent core 20 and the top sheet 10 through a solid adhesive or heat . In addition, the backsheet 30 is impermeable to liquids (e.g., urine) and has a function to prevent body fluids absorbed by the absorbent core 20 from escaping from the body 10 to contaminate the wearer ' . The back sheet 30 is made of a thin plastic film and is manufactured so that fine holes are formed in the film by molding (extruding or extruding) by adding an inorganic substance such as calcium carbonate or the like to the cloth surface of the absorbent core 20 The opposite direction to the direction of contact with the skin). A suitable material for the backsheet 30 is a thermoplastic film having a weight of 10 g / m2 to 30 g / m2, preferably a polyethylene film or a polypropylene film. The back sheet 30 adds a nonwoven fabric 32 to the plastic film 31 to give a smooth surface feel (softness). The nonwoven fabric 32 may be adhered to the plastic film 31 with a width equal to the width of the plastic film 31. The nonwoven fabric 32 is preferably formed by reducing the width of the plastic film 31 to the same width as the width of the absorbent core, Is made to have the same width as the entire width of the main body and is attached.

On the other hand, between the upper sheet 10 and the absorbent core 20, the absorbing and diffusing layer A is located, and the absorbing and diffusing layer A has liquid permeability which allows the liquid (for example, urine) to pass easily.

Fig. 3 is a cross-sectional view of W-W 'in Fig. 1, showing another preferred embodiment of the disposable absorbent article according to the present invention. Fig. 3 is a sectional view for explaining a concave- And FIG. 4 is a cross-sectional view of W-W 'of FIG. 1, showing another preferred embodiment of the disposable absorbent article according to the present invention, in which a wrapping sheet 5 is a cross-sectional view of W-W 'of FIG. 1, illustrating another preferred embodiment of the disposable absorbent article according to the present invention, illustrating a concave shaped wrapping sheet surrounding a portion of the absorbent core Fig.

One preferred embodiment of the disposable absorbent article according to the present invention is characterized in that the absorbent core 20 described above is partly or wholly wrapped with a wrapping sheet having a plurality of embossments 111 formed thereon.

The lapping sheet 110 of one embodiment increases the specific surface area of the absorbent core 20 to urine to speed up absorption diffusion and increase the friction between the absorbent core 20 to prevent aggregation of the absorbent core 20. [ It plays a role. Here, the specific surface area means a unit area or a total area per unit volume.

The lapping sheet 110 may be formed so that the embossing 111 is convex toward the absorbent core 20 with the entire absorbent core 20 wrapped around, as shown in Fig.

Alternatively, as shown in Fig. 3, the embossing 111 may be recessed toward the absorbent core 20, with the entire absorbent core 20 wrapped around.

4, the emboss 111 is absorbed by a part of the absorbent core 20, that is, the entire bottom surface and both sides of the absorbent core 20 are covered with the absorbent core 20, as shown in FIG. And may be formed to be convex toward the core 20. [

5, the embossment 111 is formed concavely toward the absorbent core 20 in a state where the absorbent core 20, that is, the entire bottom surface and both sides of the absorbent core 20 are wrapped around the absorbent core 20 .

Further, embossed convexly formed toward the absorbent core 20 and embossed concavely formed may be mixed with the absorbent core 20 partially or entirely enclosed.

As described above, the wrapping sheet for wrapping the absorbent core 20 will be described with reference to Figs. 6 to 9. Fig.

6 is a plan view for explaining the constitution of the wrapping sheet of the disposable absorbent article according to the present invention, and Fig. 7 is a cross-sectional view of the wrapping sheet of Fig. 6 Fig. 8 is an enlarged view of G in Fig. 6 for explaining the distance between centers of gravity of the embossings of the wrapping sheet shown in Fig. 6, Fig. 9 is an enlarged view of the embossed lapping sheet shown in Fig. Fig. 6 is a side cross-sectional view of G shown in Fig.

FIG. 6 is a view showing only a portion that is conceptually clarified in order to clearly understand the constitution of the preferred embodiment of the present invention. As a result, various modifications of the illustrated illustrations are expected, There is no.

As shown in Fig. 6, the wrapping sheet is made of a liquid-pervious sheet and can be made of natural fibers, synthetic fibers or a mixture of natural fibers and synthetic fibers. The embossing 111 may be formed by a heat pressing method, a pressing method, an ultrasonic lapping method, an adhesive laminating method, or the like, but a plurality of sheets may be simply stacked May also be formed in a losing manner. The embossing 111 is formed to be densely and slantwise in the longitudinal direction of the lapping sheet 110, so that a straight line can not be formed in a portion where the emboss 111 is not formed.

At this time, the area where the embossment 111 is formed is in the range of 30% to 100% of the total area of the lapping sheet 110, and preferably in the range of 50% to 100% of the surface area of the lapping sheet 110.

Here, the surface area of the lapping sheet 110 refers to the area of the lapping sheet 110 surrounding the upper surface of the absorbent core 20. That is, the area of the lapping sheet 110 that is formed facing the upper sheet 10.

If the area where the embossment 111 is formed is less than 30% of the total area of the wrapping sheet, the cover area for the absorbent core 20 is low, so that the improvement of the absorption diffusion and the aggregation phenomenon to be achieved by the present invention can not be expected .

6, L denotes a reference line L representing the longitudinal direction of the disposable absorbent article, and as shown in FIG. 7, the center of gravity O1, It is preferable that the embossment 111 is formed so that the lines C1, C2, C3 ... connecting the lines O1, O2, O3 ... are not parallel to the reference line L. [

The size of the embossment 111 is formed such that the distance from the center of gravity of the embossment 111 to the outermost side of the embossment is within 10 mm, preferably within a range of 0.2 mm to 5 mm.

If the distance from the center of gravity of the emboss 111 to the outermost side of the emboss 111 is less than 0.2 mm, the contact area of the absorbent core 20 per one embossment 111 becomes small, If the distance from the center of gravity of the embossment 111 to the outermost side of the embossment 111 is more than 10 mm, the contact area between the lapping sheet and the absorbent core 20 becomes small, .

Meanwhile, as shown in FIG. 8, the center-of-gravity distances D1, D2, D3, ... of the adjacent embosses 111 should be within 1 mm to 20 mm. When the distance between the centers of gravity D1, D2, D3 ... of the adjacent embosses 111 is less than 1 mm, the holding force of the embossment 111 is reduced due to interference between the embossments 111, When the center-of-gravity distances D1, D2, D3, ... of the absorbent core 20 are formed to exceed 20 mm, the contact area with the absorbent core 20 becomes small and the absorbing diffusion improving function deteriorates.

As shown in FIG. 9, the height H of the embossment 111 should be 0.02 mm or more, preferably 0.05 mm or more. If the height H of the embossment 111 is less than 0.02 mm, the degree of friction between the lapping sheet and the absorbent core 20 is low and the function of improving the aggregation phenomenon is lowered.

The shape of the embossment 111 formed under the above conditions may be formed to be long in the longitudinal direction or in the width direction of the disposable absorbent article, or may be arranged to be arranged in a sprite form.

On the other hand, the basis weight of the wrapping sheet is formed within 80 g / m 2. Preferably from 10 g / m < 2 > to 60 g / m < 2 >. This is because if the basis weight of the absorbent core wrapping sheet is less than 10 g / m < 2 >, the bearing capacity of the embossed structure is lowered, the embossed shape is not smoothly maintained, and the improvement of the absorbing diffusion and the improvement of the aggregation phenomenon deteriorate. Further, when the basis weight of the wrapping sheet exceeds 80 g / m 2, the function of improving the absorption diffusion due to the high-density sheet structure is deteriorated.

The air permeability of the wrapping sheet is preferably within the range of 5 cm2 / cm3 / sec to 10,000 cm2 / cm3 / sec.

Hereinafter, with reference to FIGS. 10 to 11, the absorption speed and the black water diffusion length of the embodiments according to the present invention and the disposable absorbent article without emboss will be described in comparison.

FIG. 10 is a graph comparing absorption rates of a conventional disposable absorbent article and an embodiment, and FIG. 11 is a graph comparing diffusion rates of a conventional disposable absorbent article and an embodiment.

Examples and comparative examples to be used in the experiment are configured as follows.

[Example 1]

An emboss having a distance of 0.4 mm from the center of gravity of the emboss to the outermost side of the emboss is formed by a pressing process on a tissue sheet of a tissue material having a unit weight of 16 g / m 2. At this time, 80% of the area of the absorbent core 20 is covered with the lapping sheet to produce a disposable absorbent article.

[Example 2]

Two adjacent embosses having a distance of 0.4 mm from the center of gravity of the emboss to the outermost side of the emboss were placed on a wrapping sheet made of a tissue material having a unit weight of 16 g / m 2 so that the distance between the centers of gravity of the embosses was 1.5 mm. Are arranged in the width direction, and are formed by compression processing. At this time, 80% of the area of the absorbent core 20 is covered with the lapping sheet to produce a disposable absorbent article.

[Example 3]

A embossing process is performed on the wrapping sheet made of polypropylene having a unit weight of 16 g / m < 2 > and a distance of 0.4 mm from the center of gravity of the emboss to the outermost side of the emboss. At this time, 80% of the area of the absorbent core 20 is covered with the lapping sheet to produce a disposable absorbent article.

[Example 4]

Two adjacent embosses having a distance of 0.4 mm from the center of gravity of the emboss to the outermost side of the emboss were placed on a wrapping sheet made of polypropylene having a unit weight of 16 g / m 2 so that the distance between the centers of gravity of the embosses was 1.5 mm, Are arranged in the width direction of the substrate W by a pressing process. At this time, 80% of the area of the absorbent core 20 is covered with the lapping sheet to produce a disposable absorbent article.

[Comparative Example 1]

A disposable absorbent article is prepared by preparing a tissue sheet of tissue-like wrapped sheet having a unit weight of 16 g / m < 2 > without embossing and wrapping 80% of the area of the absorbent core 20 with the wrapped sheet.

[Comparative Example 2] A non-embossed polypropylene wrapping sheet having a unit weight of 16 g / m < 2 > was prepared and wrapped with 80% of the area of the absorbent core 20 with this wrapping sheet to produce a disposable absorbent article.

[Experiment 1]

The above embodiments and comparative examples were prepared and an absorption rate measurement test and an absorption diffusion length measurement experiment of a disposable absorbent article were performed on 60 ml of artificial urine (0.9% NaCl aqueous solution) in order to confirm the improvement degree of absorption diffusion .

In the absorption rate measurement test, a cylinder having a diameter of 60 mm was closely adhered to a diaper, and then 60 ml of artificial urine was administered to the cylinder to measure the time for complete elimination of artificial urine from the surface of the disposable absorbent article. It is an experiment to measure the length of artificial urine spreading through disposable absorbent articles after car absorption.

As shown in FIG. 10 and FIG. 11, the results of Experiment 1 show that Examples 1 to 4 have an improvement in absorption rate and absorption diffusion as compared with Comparative Example 1 and Comparative Example 2.

Hereinafter, with reference to FIG. 12, the usability / cohesion satisfaction of the embodiments according to the present invention and the disposable absorbent article without emboss will be described in comparison.

12 is a graph comparing the usability satisfaction and the cumulative satisfaction of the conventional disposable absorbent article with the embodiment.

Examples and comparative examples to be used in the experiment are configured as follows.

[Example 5]

An emboss having a distance of 0.5 mm from the center of gravity of the emboss to the outermost side of the emboss is formed on the wrapping sheet made of a tissue material having a unit weight of 24 g / m < 2 > At this time, 100% of the area of the absorbent core 20 is covered with this lapping sheet to produce a disposable absorbent article.

[Example 6]

Two adjacent embosses having a distance of 0.5 mm from the center of gravity of the emboss to the outermost side of the emboss were placed on the wrapping sheet made of a tissue material of 24 g / m 2 in the width direction of the disposable absorbent article And is formed by thermocompression processing. This lapping sheet covers 100% of the area of the absorbent core 20 to produce a disposable absorbent article.

[Example 7]

An emboss having a distance of 0.5 mm from the center of gravity of the emboss to the outermost side of the emboss is formed by thermocompression processing on a wrapping sheet made of a polypropylene / polyethylene-bicomponent yarn having a unit weight of 24 g / m 2. This lapping sheet covers 100% of the area of the absorbent core 20 to produce a disposable absorbent article.

[Example 8]

Two adjacent embosses having a distance of 0.5 mm from the center of gravity of the emboss to the outermost side of the emboss were placed in a wrapping sheet made of polypropylene / polyethylene bicomponent material having a unit weight of 24 g / m < 2 & Is arranged so as to form a 45-degree angle with the width direction of the absorbent article, and is formed by thermocompression processing. This lapping sheet covers 100% of the area of the absorbent core 20 to produce a disposable absorbent article.

[Comparative Example 3]

A disposable absorbent article is produced by preparing a tissue sheet-like tissue wrapping sheet having an embossed weight of 24 g / m 2 and wrapping 80% of the area of the absorbent core 20 with the wrapping sheet.

[Comparative Example 4]

A disposable absorbent article is produced by preparing a wrapping sheet made of a polypropylene / polyethylene bicomponent material having no embossed unit weight of 24 g / m 2 and wrapping 80% of the area of the absorbent core 20 with this wrapping sheet.

[Experiment 2]

The above-described examples and comparative examples were prepared, and clinical experiments were carried out in order to confirm the usability and the effect of improving cluster formation. Clinical evaluation was conducted on 50 infants using large disposable absorbent articles. For each user, Examples 5 to 8 and Comparative Examples 3 and 4 were used for 2 weeks, respectively. Satisfaction with bunching was evaluated on a 10 - point scale.

As a result of Experiment 2, it can be seen that Examples 5 to 8 obtained higher scores in satisfaction with usability and satisfaction with bunching than Comparative Examples 3 and 4, as can be seen from Fig.

The preferred embodiments of the disposable absorbent article having improved absorption diffusion and aggregation prevention characteristics according to the present invention have been described above.

It is to be understood that the above-described embodiments are illustrative in all aspects and should not be construed as limiting, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

110: lapping sheet 111: embossed
C1, C2, C3: A line connecting the centers of gravity of adjacent embosses
D1, D2, D3: Distance between centers of gravity of adjacent embosses
H: height of emboss

Claims (11)

A disposable absorbent article comprising a body including an absorbent core between an upper sheet and a liquid-impervious back sheet,
Wherein the absorbent core is wrapped at least partially with a plurality of embossed wrapping sheets,
The back sheet is formed by adding a nonwoven fabric to a plastic film,
In the production of the plastic film, an inorganic material such as calcium carbonate is added to form micropores in the plastic film, so that steam can escape from the garment surface of the absorbent core,
The line connecting the centers of gravity of the adjacent embosses and the line parallel to the longitudinal direction of the absorbent core are not parallel,
The distance between the centers of gravity of the adjacent embossments is formed within 1 mm to 20 mm,
Characterized in that the embossing is formed so as to be closely and staggered in the longitudinal direction of the lapping sheet so that a linear flow path can not be formed in the portion where the embossing is not formed.
The method according to claim 1,
The plurality of embosses may include:
Is formed within a range of 30% to 100% of the total area of the lapping sheet.
The method according to claim 1,
The plurality of embosses may include:
Is formed within a range of 50% to 100% of the surface area of the lapping sheet.
4. The method according to any one of claims 1 to 3,
Wherein the embossment of the wrapping sheet comprises a convex embossed shape convexly formed toward the absorbent core in a state of wrapping the absorbent core, a concave embossed shape recessed toward the absorbent core in a state of wrapping the absorbent core, And the concave embossed form is mixed with the disposable absorbent article of the present invention.
4. The method according to any one of claims 1 to 3,
Wherein the wrapping sheet has at least two sheets formed by interleaving or overlapping.
delete 4. The method according to any one of claims 1 to 3,
Wherein the embossing height of the wrapping sheet is in the range of 0.02 mm to 5.0 mm.
4. The method according to any one of claims 1 to 3,
Characterized in that the basis weight of the wrapping sheet is formed within a range of 10 g / m 2 to 80 g / m 2.
4. The method according to any one of claims 1 to 3,
Wherein an air permeability of the wrapping sheet is within a range of 5 cm 2 / cm 3 / sec to 10,000 cm 2 / cm 3 / sec.
4. The method according to any one of claims 1 to 3,
Wherein the size of the emboss is formed such that the distance from the center of gravity of the emboss to the outermost side is within a range of 0.2 mm to 10 mm.
delete

Images