JPH0350896Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Purpose of invention] (Industrial application field) The present invention relates to paper diapers.

(Prior Art) In recent years, disposable diapers have come into widespread use in place of conventional cloth diapers.

Conventionally used paper diapers, as shown in cross section in Figure 5, cover the upper surface of a water absorbent body 1 made of pulverized pulp or the like that contacts the skin with a nonwoven fabric 2, and cover the back surface of the water absorbent body 1 with polyethylene. The water absorbent body 1 is covered with a water-impermeable sheet 3 such as a film and sealed 4 at its periphery, and the entire lower surface of the water absorbent body 1 is completely covered with a polyethylene film to prevent leakage of moisture.

Therefore, when this paper diaper is applied, it causes stuffiness because the water-impermeable sheet 3 made of polyethylene film placed on the outer surface has no air permeability.

Therefore, in order to provide breathability to the water-impermeable sheet 3, this sheet is made of a material with minute pores, which provides breathability and prevents stuffiness from occurring after a paper diaper is applied. provided.

(Problem to be solved by the invention) However, the above-mentioned breathable and water-impermeable sheet has minute pores, so when a paper diaper is applied and then secured with tape, it may tear or tear. However, if the thickness of the sheet is increased to make it more difficult to tear, it becomes stiff when applied, impairing the feeling of wearing.

[Structure of the idea]

(Means for Solving the Problems) The present invention focuses on the problems of the prior art described above, and in order to solve them, even if the water-impermeable sheet is made thinner, tearing or tearing does not occur, and the feeling of wearing is improved. To provide a paper diaper that is not damaged, has appropriate breathability, and does not get stuffy. Therefore, in the present invention, a sheet made of a water-impermeable film such as a polyethylene film is covered from the bottom surface to the side edge of a water absorbent body made of a water absorbing material such as pulverized pulp, and the side edge is fixed to the side edge of the water absorbent body. The lower surface is waterproof or has a structure similar to that, and a waterproof water absorbent body is provided.The upper and lower surfaces of this waterproof water absorbent body are made of breathable non-woven fabric, etc. on the upper and lower sides, which are larger than the waterproof water absorbent body and have the necessary area for a paper diaper. The material is covered with a breathable sheet, the peripheries of the breathable sheets are fixed to each other, a waterproof water absorbent material is contained between the upper and lower breathable sheets, and the breathable sheet provides breathability between the upper and lower surfaces. be.

(Function) With the above configuration, air circulates through the internal gaps in the peripheral portions of the upper and lower breathable sheets, and even after application, air permeability is maintained and the air permeability is prevented.

(Example) The present invention will be described below with reference to the embodiments shown in FIGS. 1 to 4, using the same reference numerals for parts common to those in FIG. 5.

The paper diaper 5 according to the present invention has a water-absorbent material such as crushed pulp containing a water-absorbing polymer and is covered with a thin water-impermeable sheet 6 such as a polyethylene film from the bottom surface to the side edge of the water-absorbent body 1, and the side edge of the water-absorbent body 1 is covered with a thin water-impermeable sheet 6 such as a polyethylene film. An elongated waterproof water-absorbing body 7 is formed by fixing it to the upper end of the body by means such as thermal bonding, and the upper and lower surfaces of this waterproof water-absorbing body 7 are provided with an area larger than this waterproof water-absorbing body 7 that is necessary for a paper diaper. A structure in which upper and lower nonwoven fabrics 8 and 9 are placed, the upper and lower nonwoven fabrics 8 and 9 are fixed to each other at their peripheral edges by means such as thermal bonding, and a waterproof water absorbent body 7 is built in between the upper and lower nonwoven fabrics 8 and 9. It is said that The above water impermeable sheet 6
The nonwoven fabrics 8 and 9 may be made of a breathable material having a large number of fine holes, and the nonwoven fabrics 8 and 9 may also be made of a similar breathable sheet material.

The waterproof water absorbent body 7 has a simple rectangular planar shape as shown in FIG. 10 is formed, and if necessary, an elastic cord is built in between the upper and lower nonwoven fabrics 8 and 9 of the crotch openings 10 and 10 to provide shrinkage so that when the paper diaper 5 is applied, it will fit more closely to the crotch. can do.

Adhesive tapes 11, 11 are attached to the protruding parts 5A, 5A protruding on both sides of one longitudinal end of the paper diaper 5 so as to protrude laterally, and are stretched on both sides of the other longitudinal end of the paper diaper 5. Extruding parts 5B, 5
Adhesive tapes 12, 12 are attached to the inner surface of B, and release papers 13, 14 are attached to the adhesive surfaces of these adhesive tapes. Note that the adhesive tapes 11, 11 are preferably stretchable tapes.

Next, the operation of the above embodiment will be explained.

When applying the paper diaper 5, as shown in FIG.
Fold A and 5A along the abdomen, peel off the release papers 13 and 13 of the adhesive tapes 11 and 11, and attach them to each other. Then, apply the other end from the crotch to the abdomen, and peel off the adhesive tapes 12 and 12. By peeling off the papers 14, 14 and fixing them to the overhanging parts 5A, 5A, it can be applied closely to the body. In this way, if the overhanging parts 5A, 5A at one end of the paper diaper 5 are bent over the abdomen and fixed with the adhesive tapes 11, 11, and then the other end is fixed thereon, the paper diaper 5 can be bent. It can be applied evenly on the left and right sides without shifting or shifting, there is no worry of leakage, and children can even apply it while standing up.

After fitting as described above, as shown by the arrow in the partially enlarged sectional view of Fig. 4, the paper diaper 5
A gap A is formed between the upper and lower nonwoven fabrics 8 and 9 and the waterproof water absorbent body 7 around the area, and air enters the gap A from the side edge of the nonwoven fabric 9 placed on the outer surface side, It passes through the nonwoven fabric 8 placed on the inner side through the sides, reaches the skin, and maintains sufficient breathability even after being applied.

Moisture caused by urination is absorbed by the water absorbent body 1, and since the water does not leak out to the outside due to the impermeable sheet 6 on the bottom surface of the water absorbent body 1, it does not leak to the nonwoven fabric 9 placed on the outside surface, and does not leak into clothes or bedding. Never get wet.

In order to clarify the structural differences between the present invention and the prior art, which provide the above-mentioned effects, they are diagrammatically shown in FIGS. 6A to 6D. In other words, FIG. 6A shows a conventional paper diaper, in which the entire lower surface of the paper diaper is covered with a non-porous and water-impermeable sheet (polyethylene film), and there is no air permeability over the entire surface. Moreover, FIG. 6B shows that the entire lower surface is covered with a water-impermeable sheet having fine ventilation holes, and although there is some air permeability, the air permeability of the paper diaper as a whole is insufficient. Figure 6C
1 is a chewing diaper 5 shown in an embodiment of the present invention, in which only the lower surface of the water absorbent body 1 is covered with a water-impermeable sheet 6, and the upper and lower breathable sheets 8 and 9 forming the overall shape of the paper diaper are waterproof water absorbents. It is shown that the part a without the number 7 has extremely good air permeability in the upper and lower directions. FIG. 6D shows a case where the water-impermeable sheet 6 on the lower surface of the waterproof water-absorbent body 7 is also made breathable, but in this case as well, the waterproof water-absorbent body 7
Since the part a without the mark has air permeability on the top and bottom, it prevents stuffiness after application. And Figure 6C,
In both case D, it is the breathable sheet 9 made of nonwoven fabric on the lower side that is fixed by the tapes 11 and 12, and it is not fixed to the water-impermeable sheet, so there is no tearing or tearing from the bonded part.

[Effect of idea]

As explained above, in the paper diaper of the present invention, a water absorbent body made of a water absorbing material such as pulverized pulp is covered with a sheet made of a water-impermeable film such as a polyethylene film from the bottom surface to the side edges, and the side edges are covered with a sheet made of a water-impermeable film such as a polyethylene film. A waterproof water absorbent body is fixed to the side end of the water absorbent body and has a waterproof or similar structure on its lower surface. Cover with a breathable sheet such as a non-woven fabric, fix the periphery of the breathable sheet to each other, embed a waterproof water absorbent between the upper and lower breathable sheets, and provide breathability with the breathable sheet between the upper and lower surfaces. Because of this structure, the water absorbent body can be applied in the same way as before while keeping the waterproof structure to the minimum necessary size, and even after it has been applied, the upper and lower sheets around the area other than the waterproof water absorbent body can be ventilated. to maintain breathability to the skin,
This will prevent you from getting confused after you have applied. In particular, since there is no need to actively provide breathability to an impermeable sheet for waterproofing, a thin impermeable sheet can be used, which impairs wearability while maintaining waterproof performance. Even if the structure is fixed with tape after application, the tape is attached to the bottom sheet, so there is no problem of the water-impermeable sheet tearing or tearing, and this sheet can be made thicker. There are various effects such as no need to take any measures to prevent tearing.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a schematic sectional view taken along the line in Figure 1, Figure 3 is a perspective view showing the fitting process, Figure 4 is a partially enlarged sectional view of Figure 2, and Figure 5 is a diagram of a conventional paper diaper. The schematic sectional views and FIGS. 6A to 6D are explanatory diagrams showing the difference in structure between a conventional paper diaper and a paper diaper according to the present invention. 1...Water absorbent, 5...Paper diaper according to the present invention,
6...Water impermeable sheet, 7...Waterproof water absorber, 8,
9...Nonwoven fabric as breathable sheet, 11, 12
……Adhesive tape.

Claims (1)

[Scope of utility model registration request] A sheet 6 made of a water-impermeable film such as a polyethylene film is covered from the bottom surface to the side edge of the water absorbent body 1 made of a water absorbing material such as crushed pulp, and the side edge is fixed to the side edge of the water absorbent body 1 to cover the bottom surface. A waterproof water absorbent body 7 is provided which has a waterproof or similar structure, and the upper and lower surfaces of this waterproof water absorbent body 7 are made of breathable non-woven fabric or the like on the upper and lower sides that are larger than the waterproof water absorbent body 7 and have the necessary area for a paper diaper. The periphery of the breathable sheets is fixed to each other, and the waterproof water absorbent body 7 is contained between the upper and lower breathable sheets 8 and 9, and the breathable sheets 8 and 9 are provided between the upper and lower surfaces. A paper diaper characterized by giving.