JPH11113955A - Humor absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent humor from leaking out from the rear part by returning the stream of the humor heading for the rear part, to the central part of the article by a method wherein an absorbent body is included between a humor-permeable surface sheet and a humor-impermeable rear surface sheet, and on the rear part side of the absorbent body, an arc-form embossed groove heading for the front part side is formed. SOLUTION: For a menstrual napkin 1 having a structure wherein an absorbent body 2 such as crushed pulp is included between a surface sheet which permeates humor, and a rear surface sheet which prevents the humor from permeating, at the rear part side of the absorbent body 2, an arc-form embossed grooves 3... are formed. The arc-form embossed groove 3 is made to head for the central part of the menstrual napkin 1 by making the curvature of the arc smaller as becoming more outside from the central part of the arc, and such an embossed groove 3 is provided in a manner to be recessed by applying pressure or heat to the surface sheet, or together with rear surface sheet. By this method, the humor which has flown to the rear part of the absorbent body 2 is dammed up by the arc-form embossed grooves 3..., and at the same time, the humor is returned to the central part side of the absorbent body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a body fluid absorbing article such as a sanitary napkin, a disposable diaper, an incontinence pad, a vaginal discharge sheet, and the like.

[0002]

2. Description of the Related Art Conventionally, body fluids such as disposable diapers, incontinence pads, and vaginal discharge sheets in which an absorbent mainly composed of ground pulp is disposed between a sanitary napkin, a body fluid-permeable top sheet and a body fluid-impermeable back sheet. Absorbent articles are known. Conventionally, embossed grooves are formed on both sides in the longitudinal direction of a body fluid-absorbing article, that is, in the front-rear direction of the article in a use state, and the absorbed body fluid is blocked by the embossed grooves to prevent the body fluid from leaking from the side edge of the article. What is prevented is known and disclosed in, for example, JP-A-9-108262 and JP-A-52-138398. However, there is no known article having an embossed groove formed at the longitudinal end, particularly at the rear.

[0003]

SUMMARY OF THE INVENTION The present invention provides an arc-shaped embossed groove at the rear of a body fluid-absorbing article so as to return the flow of body fluid toward the rear to the center of the article, and An object of the present invention is to block outflow of bodily fluids, prevent leakage of bodily fluids from the rear, and prevent the articles from being twisted during use.

[0004]

In order to solve the above-mentioned problems, the present invention adopts a method in which an absorber is included between a body fluid-permeable top sheet and a body fluid-impermeable back sheet. An arc-shaped embossed groove is formed at the rear side toward the front side.

The arc of the arc-shaped embossed groove is characterized in that the curvature at the side is smaller than that at the center.

Further, one or two arc-shaped emboss grooves are provided.
It is characterized by more than books.

Further, the length of the arc-shaped embossed groove is such that the same or inner embossed groove is shorter than the outer embossed groove, or the inner embossed groove is formed longer than the outer embossed groove.

Furthermore, embossed grooves extending in the vertical direction are formed on both sides on the front side of the absorber, and the embossed grooves extending in the vertical direction and the arc-shaped embossed grooves on the rear side are continuous.

Further, the arc-shaped embossed groove is formed of a continuous concave groove.

Further, a ridge having a height smaller than the depth of the emboss groove is formed inside the arc-shaped emboss groove, and the ridge is formed of a plurality of parallel lines or a lattice. It is characterized by having.

Further, the present invention is characterized in that the arc-shaped embossed groove is formed by a plurality of adjacent linear concave grooves.

Further, the present invention is characterized in that the arc-shaped embossed groove is formed by arranging discontinuous concave portions in an arc shape.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below. The drawings show a sanitary napkin to which the present invention is applied. The sanitary napkin has a structure in which an absorbent such as pulverized pulp is included between a top sheet that can penetrate bodily fluids and a back sheet that blocks permeation of bodily fluids. The structure of such a sanitary napkin is conventionally well-known, and the top sheet, the back sheet, and the absorber may be any of those used in conventionally-known sanitary napkins. Further, the material, shape, thickness, absorbing power and the like of the top sheet, the back sheet and the absorber are not particularly limited. The absorber may be a mixture of ground pulp and polymer particles capable of absorbing body fluid. The absorbent body extends in the longitudinal direction at the center of the sanitary napkin. The present invention is not limited to the sanitary napkin of the illustrated embodiment, but can be applied to sanitary napkins having other structures and shapes as well. In addition to sanitary napkins, disposable diapers, incontinence The present invention is similarly applicable to body fluid absorbent articles such as pads and vaginal discharge sheets.

Referring to FIG. 1, the present invention is characterized in that an arc-shaped embossed groove (3) is formed at the rear (lower side in the figure) of an absorbent body (2) of a sanitary napkin (1). I do. The arc-shaped embossed groove (3) decreases the curvature of the arc as it goes away from the center of the arc, and moves toward the center of the sanitary napkin (1). The embossed groove (3) applies pressure or heat together with the top sheet or the back sheet,
The absorber is formed to be permanently or semi-permanently recessed.
For example, the embossed groove is formed by heat sealing using a die having a raised pattern. Embossed groove (3)
The shape and number of are not particularly limited. The body fluid discharged to the center of the surface of the sanitary napkin (1) flows in the longitudinal direction along the absorber. The body fluid flowing to the rear part of the absorber (2) is formed in an arc-shaped embossed groove (3) formed in the rear part.
Accordingly, it is prevented from leaking rearward from the rear end of the absorber by being dammed there, and is returned to the center of the absorber along the arc shape of the embossed groove. Also, embossed groove
The presence of (3) can prevent the rear part of the absorber from being twisted.

The arc-shaped embossed groove (3) is not limited to the three grooves having different lengths shown in FIG. Two grooves may be formed as shown in FIG. 2, or three grooves (FIG. 3) and two grooves (FIG. 4) having the same length. Further, as shown in FIGS. 5 and 6, contrary to FIGS. 1 and 2, the length of the outer groove may be shortened. Further, as shown in FIG. 7, a single groove may be used. FIG. 8 shows that a vertically long embossed groove (4) extending along the longitudinal direction on both sides of the absorber (2) is added to the rear embossed groove (3) and formed at the front of the absorber. FIG.
Is formed by connecting an arcuate embossed groove (3) at the rear and a vertically long embossed groove (4) at the front with a linear embossed groove (5). 8 and 9, the arcuate embossed groove at the rear (3)
May be any of the embossed grooves shown in FIGS. In the case of FIG. 9, the arc-shaped emboss groove (3) continuous with the linear emboss groove (5) is
The outermost embossed groove is preferably used, but may be an inner or central embossed groove.

FIGS. 10 to 20 show arc-shaped embossed grooves (3).
Here are some examples of the structure of FIGS. 10 to 15 show that a ridge (6) having a height smaller than the depth of the embossed groove (3) is linearly formed inside the arc-shaped embossed groove (3). The ridge (6) is formed in a parallel linear shape perpendicular to the longitudinal direction of the sanitary napkin (1). 11 is formed in parallel to the longitudinal direction, contrary to FIG. 10, and FIG. 12 is formed in a lattice shape. FIG.
Is formed so that the direction of the lattice in FIG. 12 is oblique to the longitudinal direction of the sanitary napkin. FIG. 14 shows a parallel diagonal line toward the center of the ridge (6), and FIG. 15 shows a parallel diagonal line from the center to the outside, contrary to FIG. FIG. 16 shows a configuration in which three arc-shaped concave stripes (7) are linearly recessed, and a space between the concave stripes (7) is formed shallowly to form an embossed groove. In the case of FIGS. 10 to 16 described above, the embossed grooves were formed in a continuous shape. However, as shown in FIGS. 17 to 20, discontinuous lines (8) or concave portions (9) were arranged in an arc shape. It may be formed. In this case, the line (8) or the concave portion (9) is strongly recessed to form a deep concave portion, and the space between the line or concave portion is formed as a shallow concave portion. As a whole, an embossed groove in which the deep concave portion and the shallow concave portion are continuous is formed. .

[0017]

According to the present invention, the bodily fluid discharged to the bodily fluid-absorbing article can be effectively prevented from leaking to the rear, and dirt on underwear and clothes can be prevented, and the bodily fluid-absorbing article can be prevented. This can prevent twisting.

[Brief description of the drawings]

FIG. 1 is a plan view of a sanitary napkin to which the present invention is applied.

FIG. 2 is a plan view showing one modification.

FIG. 3 is a plan view showing another modification.

FIG. 4 is a plan view showing still another modification.

FIG. 5 is a plan view showing still another modification.

FIG. 6 is a plan view showing still another modification.

FIG. 7 is a plan view showing still another modification.

FIG. 8 is a plan view showing still another modification.

FIG. 9 is a plan view showing still another modification.

FIG. 10 shows an example of an arc-shaped embossed groove.

FIG. 11 is a view showing another example of an arc-shaped embossed groove;

FIG. 12 is a view showing still another example of an arc-shaped embossed groove;

FIG. 13 is a view showing still another example of an arc-shaped embossed groove.

FIG. 14 is a view showing still another example of an arc-shaped embossed groove.

FIG. 15 is a diagram showing still another example of an arc-shaped embossed groove.

FIG. 16 is a view showing still another example of an arc-shaped embossed groove;

FIG. 17 is a view showing still another example of an arc-shaped embossed groove;

FIG. 18 is a diagram showing still another example of an arc-shaped embossed groove.

FIG. 19 is a view showing still another example of an arc-shaped embossed groove.

FIG. 20 is a view showing still another example of an arc-shaped embossed groove;

[Explanation of symbols]

 (1) Sanitary napkin (2) Absorber (3) Arc-shaped embossed groove (4) Vertically long embossed groove (5) Straight embossed groove (6) Projection (7) Concave (8) Wire (9) Concave

Claims (16)

[Claims] An absorbent body is enclosed between a body fluid-permeable top sheet and a body fluid-impermeable backsheet, and an arc-shaped embossed groove is formed on the rear side of the absorber toward the front side. A bodily fluid absorbent article characterized by the following. 2. The body fluid-absorbing article according to claim 1, wherein the arc of the arc-shaped embossed groove has a smaller curvature at the side than at the center. 3. The body fluid absorbent article according to claim 1, wherein the number of the arc-shaped emboss grooves is one. 4. The body fluid absorbent article according to claim 1, wherein the number of the arc-shaped embossed grooves is two or more. 5. The body fluid-absorbing article according to claim 4, wherein the arc-shaped embossed grooves have the same length. 6. The body fluid-absorbing article according to claim 4, wherein the arc-shaped embossed groove is formed such that an inner embossed groove is shorter than an outer embossed groove. 7. The body fluid absorbent article according to claim 4, wherein the arc-shaped embossed groove is formed such that the inner embossed groove is longer than the outer embossed groove. 8. An embossed groove extending in the vertical direction is formed on both sides of the front side of the absorber.
The body fluid absorbent article according to any one of the above. 9. The body fluid absorbent article according to claim 8, wherein the embossed groove extending in the longitudinal direction and the arcuate embossed groove on the rear side are continuous. 10. The body fluid-absorbing article according to claim 1, wherein the arc-shaped embossed grooves are formed by continuous concave grooves. 11. The body fluid absorbent article according to claim 10, wherein a ridge having a height smaller than the depth of the emboss groove is formed inside the arc-shaped emboss groove. 12. The body fluid-absorbing article according to claim 11, wherein the ridge has a plurality of parallel lines. 13. The body fluid absorbent article according to claim 1, wherein the ridges are formed in a lattice shape. 14. The body fluid-absorbing article according to claim 1, wherein the arc-shaped embossed groove is formed by a plurality of adjacent linear concave grooves. 15. The body fluid absorbent article according to claim 1, wherein the arc-shaped embossed groove is formed by arranging discontinuous linear concave portions in an arc shape. . 16. The body fluid absorbent article according to claim 1, wherein the arc-shaped embossed groove is formed by arranging discontinuous concave portions in an arc shape.