JP3956358B2 - Absorbent core and disposable absorbent article comprising the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an absorbent core and a disposable absorbent article including the same.
[0002]
[Prior art]
A flat absorbent body is used in the current disposable diaper, and it is impossible to fit a body having a complicated curved surface, and a gap is easily formed, and a leak has occurred from there. Some have improved flexibility by embossing, but the two-dimensional planar shape has not been sufficiently fitted to a complex three-dimensional shape. In particular, this tendency is conspicuous for a thin absorbent body whose density is increased in order to prevent compactness and deformation of the absorbent body, and a high-fitness according to the gender and body shape of the wearer has been desired.
[0003]
[Problems to be solved by the invention]
An object of this invention is to provide the absorption core which can be made to fully fit a three-dimensional shape according to a wearer's sex, a body shape, etc.
[0004]
[Means for Solving the Problems]
The absorbent core of the present invention is based on the use of a plurality of absorbent panels.
Conventionally, it is known that the absorbent pad is divided into a plurality of pieces of the absorbent pad to prevent the absorbent pad from being deformed and to reduce the discomfort caused by the deformation of the absorbent pad at the time of body fluid leak ( 1-1141707).
[0005]
However, the absorbent core of the present invention improves fit according to the physical characteristics of the wearer, and the abdominal panel, crotch panel, and back panel in which the plurality of absorbent panels can be bent between the panels. In addition to the above, it is a strip-shaped absorbent panel at the outermost part of the absorbent core, and is broadly divided with a gap between the final body fluid absorption and the outer edge panel that serves to prevent leakage, Each of these major panels is configured to be able to bend in the front, rear, left, and right directions independently within each panel surface.
[0006]
Further, each major panel (abdomen panel, crotch panel, back panel, and outer edge panel) can be bent left and right and / or front and rear as a mode in which each major panel can be bent independently within the panel surface. A configuration in which a plurality of panels are subdivided with a gap and bendable between each subpanel, and a configuration in which each major panel is embossed on each panel surface so that each panel surface can be bent back and forth and left and right Is included.
[0007]
Furthermore, the present invention is to divide the abdominal panel, crotch panel and back panel into a male sub-panel or a female sub-panel so that a shape suitable for the male or female body can be taken.
[0008]
[Action]
Further, the present invention relates to an absorbent core in which the division between each of the large-sized or large-sized and subdivided panels constitutes the liquid introduction means in the plane of the absorbent core.
Further, the present invention relates to an absorbent core in which large-scale or large-scale and subdivided panels are arranged with an interval of 1 to 5 mm and the flexibility between the panels toward the body side or clothing side is improved.
Further, according to the present invention, the panels separated at intervals are joined and held from above and below by a carrier sheet or non-woven cloth on the body side and a carrier sheet or non-woven cloth or film on the clothing side, so that each panel is displaced and / or deformed. Related to the prevented absorption core.
[0009]
The present invention further relates to an absorbent core in which carrier sheets or non-woven cloths or films above and below each panel separated at intervals are vertically joined on the body side or clothing side at the above intervals.
The invention also relates to an absorbent core in which the abdominal panel, the crotch panel and the back panel are separately divided into both side panels and a central panel.
[0010]
Among the broad panels of the present invention, the outer edge panel is related to the absorbent core formed of a plurality of strip-shaped panels at both ends in the longitudinal direction and the width direction of the absorbent core.
The present invention further relates to an absorbent core in which the shape and arrangement of each core panel are symmetrical with respect to the central axis in the width direction of the absorbent core.
[0011]
Furthermore, the present invention relates to a disposable absorbent article including any one of the above-described absorbent cores, top sheets, and back sheets, which includes a urine pad and a diaper.
As a thing which can use this absorption core, the range of the urine collection pad used in combination with a tape stop type, a pants-type disposable diaper, underwear, etc. is wide.
It is possible to apply even those that are applied only to the crotch part of a sanitary product or the like.
[0012]
The absorbent core of the present invention is composed of a general fluff mat and may contain SAP (super absorbent polymer).
Moreover, if the heat-fusible fiber is mixed, it is possible to effectively prevent the deformation of the absorbent panel.
[0013]
Abdominal panel, crotch panel, back panel and outer edge panel can be flexed / fit by embossing instead of or subdividing into the preferred shape. Can be issued.
[0014]
Absorbing panels (largely divided panels and / or subdivided panels) are arranged with an interval of 1 to 5 mm.
If it is less than 1 mm, there is a problem in the manufacturing process, and it is difficult to bend the absorbent panel, which is not preferable.
If it exceeds 5 mm, there is a problem in the absorption performance, and discomfort to the wearer is increased, which is not preferable.
[0015]
The above absorbent panel is joined to the carrier panel / non-woven cloth sheet / film etc. above and below the absorbent panel at the interval between the large panel and / or subdivided panel to prevent the absorbent panel from shifting, twisting, collapsing, etc. It is desirable to make it.
[0016]
The absorbent core of the present invention is roughly divided into an outer edge panel, an abdominal panel, a crotch panel, and a back panel, and men and women are different in shape from physical characteristics.
Specifically, each large panel is divided into both sides and a central panel so that the shape suitable for the body can be taken as a whole.
At this time, the absorbent core is symmetrical in shape and configuration with respect to the central axis in the width direction.
[0017]
【Example】
Examples of the present invention are shown below, but the present invention is not particularly limited thereby.
[0018]
[Example 1]
FIG. 1 is a plan view of a rectangular male absorption core, and FIG. 2 is a plan view of a female absorption core. Both of the outer edge panel (1), the back, and the crotch form the outer core of the absorption core. An abdominal panel (2), a crotch panel (3), and a back panel (4), which form an inner edge part composed of a part and an abdomen, are roughly divided.
As shown in FIG. 3, an interval (gap) (5) of 1 to 5 mm is provided between the panels of these roughly divided panels (1) to (4), and this interval (5) is the panel (1 )-(4) The flexibility between each other is improved, and this is also an effective liquid introduction means. In order to further improve the flexibility of these large panels (1) to (4), vertical and / or horizontal embossing (6) may be applied to each panel as shown in FIG.
Men and women have different subdivided shapes of the absorbent panels used, particularly the abdominal panel (2) and the crotch panel (3), because of their physical characteristics. FIG. 14 shows a three-dimensional schematic diagram when the male absorbent core is worn.
[0019]
[Example 2]
FIG. 5 is a schematic view of the interval portion showing details of the interval (gap) (5) of FIG. 3, and the roughly divided panels (1) to (4) are arranged with an interval (5) of 1 to 5 mm, respectively. The carrier sheets on the top and bottom of the panel or the non-woven cloth (7) (8) are joined (9) at this interval (5) to prevent misalignment, twisting, collapse, etc. between the panels (1) to (4). Yes.
FIG. 6 is a schematic diagram at the time of bending in FIG. 5 and shows that the interval (5) improves the flexibility between the panels (1) to (4) and is also an effective liquid introduction means in the absorbent core. Is.
[0020]
[Example 3]
FIG. 7 shows a schematic view of the outer edge panel (1) in FIGS. 1 and 2, and the panel is composed of a strip-shaped absorbent panel located at both ends of the absorbent core in the longitudinal direction and the width direction and located at the outermost part of the absorbent core. Show.
Basically, the left and right strip panels (1-1) and (1-2) and the upper and lower strip panels arranged with an interval (5) between the upper and lower sides of these panels (1-1) and (1-2). It consists of (1-3) and (1-4), and serves to absorb the final body fluid in the absorption core and prevent leakage.
[0021]
[Example 4]
The configuration of the abdominal panel (abdominal panel (2) in FIGS. 1 and 2) having different configurations for men and women is shown in FIG. 8 (schematic abdominal panel plan view for men) and FIG. 9 (schematic plan view of the abdominal panel for women), respectively.
The men's body shown in FIG. 8 is slightly larger than the crotch panel so as to absorb main body fluid in this portion. The abdominal panel is subdivided into side absorption panels (2-1) and (2-2) and an intermediate central panel (2-3) with an interval (5). The central absorbent panel (2-3) is wider than the two side absorbent panels (2-1) and (2-2). In addition, you may increase SAP compounding quantity of a center panel (2-3) compared with others. The left and right side absorbent panels have a cup-like shape, and the width direction end length is shorter on the outer edge side than on the center side.
For females shown in FIG. 9, a panel that is the same as or slightly smaller than the crotch panel is used because main liquid absorption is performed by the crotch panel. The main difference is that the central absorbent panel (2-3) is composed of at least two absorbent panels (2-3 ′) (2-3 ″), which is a crease at the center in the width direction of the central panel. An interval (5) is provided. The two panels (2-3 ′) and (2-3 ″) are bent toward the body by this distance, and can take a shape that more fits the female body.
FIG. 10 shows a schematic diagram when the three-dimensional fit is performed.
[0022]
[Example 5]
FIG. 11 is a schematic diagram of a crotch panel for men, and FIG. 12 is a schematic diagram of a crotch panel for women.
In FIG. 11 for men, it is a part that plays a supporting role in absorbing body fluid, and is subdivided into both sides (3-1) (3-2) and a central absorption panel (3-3). Further, in order to improve the fit, both sides and the center are composed of a plurality of absorbent panels in the longitudinal direction. That is, the left side panel (3-1) is subdivided into (3-1-a) (3-1-b) (3-1-c), and the right side panel (3-2) is (3-2). -A) Subdivided into (3-2-b) (3-2-c). The central panel (3-3) is subdivided into (3-3-a) (3-3-b) (3-3-c).
Since the body fluid absorption in FIG. 12 must be performed, the abdomen side central absorption panel (3-3-3-e) of the crotch panel is large. The entire center panel may be composed of a single absorbent panel, but it is preferable that the central absorbent panel is composed of 2 to 3 sheets in consideration of fit.
Moreover, an absorption panel (3-3-3-e) may increase the compounding quantity of SAP compared with another panel.
In the drawing, the central panel is composed of upper and lower panels (3-3-d) and (3-3-e), and the left and right side panels are (3-1-d), (3-1-e) and (3, respectively). 2-d) (3-2-e).
[0023]
[Example 6]
This example shows a back panel and is configured for both men and women.
As shown in FIG. 13, the central absorbent panel (4-3) has only one isosceles triangle so as to fit the shape of the buttock, and the left and right side panels (4-1) and (4-2) are in the center in the width direction. Arranged so as to have a linear spacing from the central absorbent panel to the outer edge. Both side absorption panels (4-1) and (4-2) are preferably composed of one sheet each.
[0024]
[Example 7]
FIG. 15 shows a plan view of a so-called hourglass-shaped absorption core showing a modification of FIG. 1 or FIG.
The outer edge panel (1) is basically composed of left and right strip panels (1-1) and (1-2) as in FIG. 1, and upper and lower strip panels (1) and (2) arranged above and below them. 1-3) (1-4), but the left and right belt-like panels (1-1) and (1-2) are linear dorsal belt-like subdivision panels (P1) and ventral-side belt-like subdivision panels ( P5) and a constricted belt-like subdivision panel (P2) (P3) (P4) which is located between the two (P1) and (P5) and forms an inner constricted curved portion, and the belt-like panel (1-1) (1-2) is symmetrical.
The abdomen panel (3) lacks side absorbent panels on both sides of the upper central absorbent panel (3-3-3-d) and is directly adjacent to the outer edge subdivision panel (P3) with a gap. The abdominal panel (2) and the crotch panel (3) can be further arbitrarily and appropriately subdivided according to the sex of men and women.
[0025]
[Example 8]
FIG. 16 is a plan view of a so-called saddle-shaped or like-shaped absorption core showing still another modification of FIG. 1 or FIG.
The outer edge panel (1) includes left and right belt-like panels (1-1) and (1-2), and upper and lower belt-like panels (1-3) and (1-4) arranged above and below each other. However, the left and right strip panels (1-1) and (1-2) are part of the strip-shaped subdivision panels (P14) and (P15) of the straight ventral and crotch parts, respectively. It is composed of a crotch-side remaining portion (forming an outer bulge-like portion) and a back-side bulge-band subdivision panel (P11) (P12) (P13), and a strip-like panel (1-1) And (1-2) are symmetrical.
Further, intermediate outer edge panels (I1) (I2) are provided between the swollen strip subdivision panels (P11) (P12) (P13) and both sides of the back panel (4) and one side of the crotch panel (3). Intervened at intervals. The crotch panel (3) and the abdominal panel (2) can be further subdivided as appropriate according to male and female.
[0026]
【The invention's effect】
1) It has better body fit than a conventional flat single-piece absorbent core.
2) Body fluid is diffused by the spacing between the respective absorption panels (abdominal panel, crotch panel, back panel, and subdivided panels of these major panels), and uniform diffusion of the body fluid can be expected over the entire surface of the absorption core.
3) Since the outer edge panel is arranged on the outermost part of the absorbent core, final absorption of body fluid and prevention of leakage are achieved.
4) Optimum fit is achieved following the physical characteristics of men and women.
5) Leakage prevention and absorbency improvement / improvement increase dramatically.
[Brief description of the drawings]
FIG. 1 is a schematic plan view of a male absorbent core.
FIG. 2 is a schematic plan view of a female absorbent core.
FIG. 3 is an explanatory diagram of an interval between a main panel and a subdivision panel.
FIG. 4 is an explanatory view of an embossed absorbent panel.
FIG. 5 is a schematic view showing details of a spacing portion.
FIG. 6 is a schematic view when a gap portion is bent.
FIG. 7 is a schematic plan view of an outer edge panel.
FIG. 8 is a schematic plan view of a male abdominal panel.
FIG. 9 is a schematic plan view of a female abdominal panel.
FIG. 10 is a schematic three-dimensional diagram when wearing the same as above.
FIG. 11 is a schematic plan view of a male crotch panel.
FIG. 12 is a schematic plan view of a female crotch panel.
FIG. 13 is a schematic plan view of a back panel.
FIG. 14 is a three-dimensional schematic diagram when the male absorbent core is worn.
15 is a diagram showing a modification of FIG. 1 or FIG.
FIG. 16 is a diagram showing a further modification of FIG. 1 or FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Outer edge panel 2 ... Abdominal panel 3 ... Crotch panel 4 ... Back panel 5 ... Gap (gap)
6 ... Vertical and horizontal embossing 7, 8 ... Upper and lower carrier sheets or non-woven fabric 9 ... Joining as above
2-1,2-2 ... Absorber side absorption panel
2-3,2-3'-2-3 ''… The central absorption panel of the abdominal panel
3-1-a, 3-1-b, 3-1-c and 3-2-a, 3-2-b, 3-2-c ... Side absorption panels for male crotch panels
3-3-a, 3-3-b, 3-3-c ... Center absorption panel of crotch panel for men
3-1-d, 3-1-e and 3-2-d, 3-2-e ... Side absorption panel of crotch panel for women
3-3-d, 3-3-e… Center absorption panel of crotch panel for women
4-1,4-2 ... Back panel side absorption panel
4-3. Central absorption panel of back panel
P1 to P5 ... strip-shaped sub-panel of outer edge panel with inner constriction
P11 to P15 ... strip-like sub-panel of outer edge panel with outer bulge
3-1-f, 3-3-f, 3-2-f ... variation examples
3-1-g, 3-3-g, 3-2-g ... each modification

Claims (12)

In the absorbent core of the disposable absorbent article, the absorbent core is roughly divided into an abdominal panel that can be bent between the panels, a crotch panel, a back panel, and a strip-shaped outer edge panel at the outermost part of the absorbent core. Moreover, these large panels are held as a single absorbent core panel as a whole, and each of these large panels is subdivided into a plurality of panels on the left and right and / or front and back, respectively. An absorptive core that can be bent between each other and is held as a single absorptive core panel as a whole, so that the abdominal panel, crotch panel, and back panel can take a shape suitable for a male body, the abdominal panel from wide central panel left and right side absorbing panels and the side absorbent panels, each side small the Ku re subdivided crotch panel from the abdominal panel Fine central absorbent panel, male absorbent core, characterized in that the back panel to the side panel and the left and right central panel of the triangle, are divided into respective subdivided panel. In the absorbent core of the disposable absorbent article, the absorbent core is roughly divided into an abdominal panel that can be bent between the panels, a crotch panel, a back panel, and a strip-shaped outer edge panel at the outermost part of the absorbent core. Moreover, these large panels are held as a single absorbent core panel as a whole, and each of these large panels is subdivided into a plurality of panels on the left and right and / or front and back, respectively. Absorbent core that can be bent between each other and is held as a single absorbent core panel as a whole , so that the abdominal panel, crotch panel, and back panel can take a shape suitable for a female body At the center panel consisting of at least two left and right side absorption panels and a crotch panel that is the same size as or slightly larger than the abdominal panel. The crotch panel of large central absorbent panel from the panel, feminine absorbent core, characterized in that the back panel is divided into respective subdivided panels of the central panel and left and right side panels of the triangle. Abdominal panel, the absorption of the crotch panel, according to claim 1 or 2, wherein the longitudinal and / or transverse direction of the panel surface is subjected to embossing and bendable in all directions to each roughly divided panel surface of the back panel and outer panel core. The absorbent core according to any one of claims 1 to 3 , wherein the division between each of the panels is divided into large groups or large groups and subdivisions, and the liquid introduction means in the plane of the absorption core is constituted. Each panel of roughly classified or roughly classified and subdivided are spaced each 1 to 5 mm, any one of claims 1 to 4 which allowed increased flexibility to the body side or garment side between the panels each other The absorbent core according to claim 1. The panels separated at intervals are joined and held from above and below by the carrier sheet or non-woven cloth or film on the body side and the carrier sheet or non-woven cloth or film on the clothing side to prevent displacement and / or deformation of each panel. The absorbent core according to any one of claims 1 to 5 . The absorbent core according to claim 6 , wherein carrier sheets or non-woven cloths or films on the upper and lower sides of each panel separated at intervals are vertically joined on the body side or clothing side at the above intervals. The absorbent core according to any one of claims 1 to 7 , wherein the abdominal panel, the crotch panel, and the back panel are separately divided into both side panels and a center panel. The absorbent core according to any one of claims 1 to 8 , wherein the outer edge panel is composed of a plurality of strip-like panels at both ends of the absorbent core in the longitudinal direction and the width direction. The absorbent core according to any one of claims 1 to 9, wherein the shape and arrangement of each core panel are symmetrical with respect to the central axis in the width direction of the absorbent core. Disposable absorbent article having superior absorption core and the topsheet and the backsheet to fit in any one of claims 1 to 10. The disposable absorbent article according to claim 11 , wherein the absorbent article includes a urine pad and a diaper.

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