JPS5936703A - Disposable diaper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to disposable mortuaries. As is well known, urine water absorption and water retention are one of the basic requirements for diapers.
a. Since the structure is simply a water-absorbing band made of pulp material or the like interposed between the non-woven fabric on the surface and a waterproof sheet such as a polyethylene sheet, urine cannot be widely dispersed in a short period of time. Since water is absorbed only in the area where urine is urinated, the amount of urine cannot be absorbed sufficiently and urine tends to accumulate locally and leak out from the end of the diaper.
：b、Water absorption and water retention are insufficient. Therefore, in the cotton disposable diaper as described above, a water absorption band such as a valve material is also interposed between the back side of the waterproof sheet and the nonwoven fabric on the back side. Disposable diapers have come into practical use. This has the advantage that when urine leaks from the side edges of the diaper and flows into the inner surface of the diaper cover, the back surface also has a water absorption band, so the leaked urine can be quickly absorbed and water can be retained for a long time. However, the basic function of this is to absorb urine that leaks from the side on the back side, and it does not absorb water sufficiently and effectively without causing urine to leak from the side. That is, it is a measure against water absorption after leakage from the side edge of the diaper, and is not intended to improve water absorption and water retention to prevent side leakage, etc. as shown in FIG.

The present invention has been made in consideration of the above points, and in addition to having the function of absorbing water on the back side, it is also desirable to further improve urine water absorption and water retention, which are the basic requirements of a diaper. In the disposable diaper which has a water absorbent band between the first 10 shots of the present application and also has a water absorbent band between the back side of the waterproof sheet and the nonwoven fabric on the back side, the waterproof sheet has:
This disposable diaper is characterized by a small hole formed on the front side to guide urine urinated to the back side water absorption band.The purpose of this disposable diaper is: The amount of water absorbed can be greatly increased by spreading from the water absorption zone on the first surface side to the water absorption zone on the back side and diffusing into the water absorption zone on the back side. Therefore, there is no risk of urine accumulating partially or leaking from the side edges, etc., and even if it does leak, the back side has a water absorption function, and it also has superior moisture permeability and breathability. We provide disposable diapers.

A second invention of the present application is a disposable article according to the first invention, characterized in that the central part of the water-absorbing band on the surface side is divided as a groove without a water-absorbing band along the direction of the potato. In addition to the above-mentioned purposes, the purpose of the paper is to spread the urinated urine along the length of the diaper, covering the entire surface of the diaper. We provide diapers that absorb water,
Furthermore, the third invention of the present application is characterized in that, in the first invention, several thin longitudinal grooves are formed by embossing along the direction of the potato in the center part of the water absorption zone on the surface side. This is a disposable disposable diaper, and in addition to the purposes listed above, the purpose is to: In addition, in order to improve
Improves the shape retention of diapers so that they can be handled compactly before use, and even if they sag due to use, they do not lose their shape and can be easily replaced. There is something to do.

Furthermore, in the fourth invention of the present application, in the first invention, the central part of the surface side is divided as a groove without a water absorption band, and while the groove is inside, both left and right ends t- A disposable coin is characterized in that thin vertical stripes are formed by embossing along the direction of the Japanese yam in the remaining portion, and the second and third inventions described above are possible for its purpose. The aim is to make each of these objectives possible.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, an embodiment supporting the first invention of the present application will be described with reference to FIG.

1 is a non-woven fabric on the front side, 2 is a waterproof sheet such as a polyethylene film, and a water-absorbing band 3 is arranged between the above-mentioned front non-woven fabric 1 and the waterproof sheet 2.0 and 4 are the back-side water absorbing band. , is disposed between the back surface of the waterproof sheet 2 and the nonwoven fabric 5 on the back side.

The surface water absorption zone 3 and the back surface water absorption zone 4 may be made of Claracy valve made by crushing a valve into a cotton-like structure, or
A collection of crushed pulp or a piled pulp made up of many sheets of paper can be considered.

Further, both the front water absorbing band 3 and the back water absorbing band 4#'i are wrapped at the top and bottom with a synthetic material, and are placed in their respective positions in the wrapped state.

The above is for those who have the conventional back side water absorption function,
The present invention is such a product in which small holes 6 are formed in the waterproof sheet 2.

There is no need to specifically limit the number of small 66 pores formed per unit area and the formation position, but these are basic matters that determine the speed of penetration and diffusion from the surface water absorption zone 3 to the back surface water absorption zone 4 side. Therefore, one of the reasons is that the urine urinated on the surface water-absorbing band 3 gradually diffuses to the back-side water-absorbing band 4, and at the same time, the water-retaining function of the surface water-absorbing band 3 is not impaired. υ, the water retention capacity of the back water absorption band 4 may be determined to the extent that it supports this. For example, as in this embodiment, a small hexagon 6 is formed in the central area of the tarpaulin sheet 2, and has a diameter of 0.1 to 0.5 mm per unit area of 1.50 to 2 square meters.
An example can be given in which about 4 small holes are formed in a diameter of about 5 stages.

According to the diaper configured in this way, the urine that is urinated is
First, water passes through the nonwoven fabric 1't on the surface and is absorbed into the water absorption band 2 on the surface. If there is still urine to be absorbed (while this water absorption has progressed), it flows into the water absorption band 2 on the front surface, passes through the small 66 of the waterproof sheet 2, and is absorbed into the water absorption band 4 on the back surface. It's something to do. Therefore, even if urine is urinated a lot, urine will not temporarily accumulate in a certain part of the water absorption band 2 on the surface, and there is no fear of urine leaking from the side edge of the urination band. Even if a leak occurs, the leaked urine will be further absorbed by the water absorption band 4 on the back side. In addition, air permeability and moisture permeability are improved through the small holes 6 of the waterproof sheet 2.

Next, an embodiment supporting the second invention of the present application will be described in detail with reference to FIGS. 2 to 4. In this example, in the disposable low diaper of the embodiment shown in FIG. 1, the central part in the width direction of the water absorption band 3 on the front side is removed at a constant opening W along the longitudinal direction, and - It is divided into a water absorption band 3a on one side and a water absorption band 3b on the other side, and a part of a certain radius W is divided as a groove 7 without a water absorption band, and the other parts are the same as the embodiment in FIG. The sign is the sign. In this example, the urine that has been urinated flows along the stain 7 in the longitudinal direction of the diaper, and is then absorbed into the left and right water absorption bands 3a and 3b via the side walls 8a and 8b of the diaper. Therefore, urine does not accumulate locally, and water is evenly absorbed throughout the body. Now, the water absorption zone 3a on the surface
, 3b as described above, the water is gradually absorbed by the water absorption band 4 on the back surface. is diffused, and water absorption is significantly improved.

In addition, the above-mentioned lagoon 7 extends from end 9 to end 1 in the longitudinal direction as shown in Figure 3.
It may be formed up to 0, or it may be formed leaving the end portions 9 and 10 as shown in FIG.

Next, an embodiment supporting the third invention of the present application will be described in detail with reference to FIGS. 5 to 7.

In this example, in the case of using the above-mentioned embodiment in FIG. It is embossed to form a number of thin vertical strips 11, and as a result of the embossed part of the cat cloth 1 and water absorption band 3 being compacted, the shape of the diaper metal body is maintained. This makes it less bulky and easier to handle.

In the case of this example, the urinated urine is guided by the vertical stripes 11 and flows in the longitudinal direction of the penis and is absorbed by the water absorption band 3, so that it is diffused over the entire surface. Therefore, as in the second example above, urine does not accumulate in one area, and water is absorbed evenly over the patient. After the water is absorbed by the water absorption band 3 on the front surface, the water is absorbed by the water absorption band 4 on the back side through the small holes 6 of the waterproof sheet 2. As in the second example above, urine is absorbed in the longitudinal direction. and spread in two directions on the back side.
- The water absorbency is improved. Moreover, since the center part is pressed by embossing,
Because it retains its shape well, it is easy to handle before use because it is not bulky or bulky, and even after absorbing urine.
It has the advantage of being easy to handle because it does not lose its shape in the middle when pulled.

In this example as well, the vertical grooves 11 may be formed by embossing from the end 12 as shown in FIG. 6, or may be formed from the end 12 as shown in FIG.

Next, an embodiment supporting the fourth invention of the present application will be described in detail with reference to FIGS. 8 to 12.

This example is a combination of the second example and the third example. That is, the water absorption band 3 on the surface has a central portion in the width direction cut out along the longitudinal direction, and the central portion has a constant width W.
It is divided into a concave groove 7 without a water absorption zone, and
Approximately! ! J [7 in the middle, both left and right ends 13,
14 are left with Ω thin vertical lines 11 formed by embossing along the longitudinal direction at a constant @vtF-.

In this example, as shown in FIG. 11, urine flows through both the grooves 7 and the vertical grooves 11 as indicated by the arrow A, and then flows through the side walls aa and sb of the grooves 7 or through the vertical grooves. 11, water is absorbed into the water absorption bands 3a and 3b on the surface,
Urine absorbs water and swells in the shape of a circle B, and the urine is evenly absorbed over the entire surface of the diaper.
If the absorbed urine is not enough to be absorbed by the water absorption bands 3a and 3b, it is further transferred to the back water absorption band through the small 66 of the waterproof sheet 2 as shown by arrow C in Fig. 12. 4, it absorbs water and penetrates evenly into the entire layer of the penis.The water absorption and water retention properties of urine are extremely good, which relieves the pressure on the genitals and makes it easier to urinate. The presence of the striated grooves 11 provides advantages such as good shape retention. Incidentally, both the concave groove 7 and the vertical line groove 11 may be formed from the end 14 as shown in FIG.
Alternatively, the end 14 may be removed as shown in FIG.

In addition, in the above example, the vertical grooves 1 are formed by embossing.
66 on the tarpaulin sheet 2 over the same width as the width that formed 1
As shown in FIG.
The portions 15 corresponding to the portions on the left and right of the groove 7 where the vertical stripes 11 are formed by embossing are not formed.
, 66 may be formed only on the 16 sides.

As detailed above, according to the first invention of the subject matter, σ) urinated urine can be absorbed by the water absorption band on the surface and diffused and permeated from the water absorption band on the front side to the water absorption band on the back side; It can greatly increase the amount of water absorbed, so there is no risk of urine partially accumulating or leaking from the side edges, and even if it does leak, water can be absorbed from the back side, and it is also moisture permeable. It also has excellent breathability. Furthermore, according to the second invention 1 and the third invention of the present application, in addition to the above ■ to ■, 1
The second invention of the present application is that it is capable of dispersing urinated urine along the longitudinal direction of the diaper and evenly absorbs urine over the entire surface of the diaper. The third invention of the present application is excellent in shape retention. Furthermore, the fourth invention of the present application enables all of the above-mentioned items (1) to (2).

[Brief explanation of the drawing]

The accompanying drawings show embodiments of the present invention, FIG. 1 is a perspective view of the first embodiment, FIGS. 2 to M4 show the second embodiment, FIG. 2 is a perspective view, and FIG. 3 is a perspective view of the first embodiment. , FIG. 4 is a plan view showing the different ways of forming the grooves, FIGS. 5 to M7 show the third embodiment, FIG. 5 is a perspective view, and FIGS. 6 and N7. 8 to 13 show the fourth embodiment; FIG. 8 is a perspective view; FIG. Fig. 10 is a perspective view showing the difference in the formation mode of the grooves and vertical stripes; Fig. 11
The figure is a diagram to explain the planar spread of urine, Figure 12 is a diagram to explain how urine is absorbed from the water absorption zone on the surface to the water absorption zone on the back surface, and Figure 13 is a diagram for explaining the fourth implementation. FIG. 7 is a diagram showing another modification of the example. l...Nonwoven fabric on the surface 2...Waterproof sheet 3...Water absorption band on the surface 4...Water absorption band 5 on the back side...Water absorption band on the back side Non-woven fabric 6...
... Minor hole 7 ... Concave groove 11 ... Vertical east line groove formed by embossing.

Claims (4)

[Claims] (1) In a disposable diaper that has a water absorbent band 3 made of pulp material or the like between the nonwoven fabric 1 on the front surface and the waterproof sheet 2, and also has a water absorbent band 4 between the waterproof sheet 2 and the nonwoven fabric 5 on the back side, The above-mentioned waterproof sheet) 2KS A disposable diaper characterized by forming small hexes 6 for diffusing urine from the front water absorption band 3 to the back water absorption band 4 side. (2) In the invention described in claim 1,
Water absorption on the surface side above? f3 has a central part in the width direction cut out along the longitudinal direction, and is divided into a water absorption band on the - side and the other side, and a -5 groove 7 in which the center part is not a water absorption band.
Disposable kotsutsu that is characterized by being divided into sections. (3) In the invention recited in claim 1, a number of thin vertical stripes i are embossed along the longitudinal direction in the widthwise center portions of the nonwoven fabric 1 on the front surface and the water absorption band 3 on the front side. A disposable diaper characterized by the formation of @tx. (4) In the invention described in claim 1,
The water absorption band 3 on the surface side has a central part in the width direction cut out along the longitudinal direction, and the central part is divided into five sieves 7 without a water absorption band. A disposable diaper characterized in that a number of thin vertical grooves 11 are formed by embossing along the longitudinal direction in a portion where both ends are left.