JPH08150173A - Paper diaper - Google Patents

Abstract

PURPOSE: To relieve bed odor of filth such as urine and feces by furnishing a water absorbing layer containing fragrance. CONSTITUTION: A paper diaper is composed of a porous type fibrous facial layer 2 having water permeability installed on the service surface side which contacts the skin, a fragrance-containing water absorbing layer 1 installed under the facial layer to absorb and retain liquids, and a leak preventive layer 3 formed as the undermost layer to prevent leak of the liquids. The water absorbing layer 1 is pinched between an absorbent 1a consisting of cotton-form pulp, a polymer absorbent, and fragrance and two layers of porous fiber 1b and consolidated by pressure attachment through an embossing process. The facial layer 2 is made of rayon, polyester, polypropylene, etc., which is turned into a sheet followed by hot melt adhesion or bond using a binder so that nonwoven cloth is accomplished or consists of rayon paper, etc., prepared by mixing together rayon fiber and wood pulp followed by a paper-making process. The leak preventive layer 3 is made from a film of polyethylene, polyvinyl alcohol, etc., or a material prepared by laminating them on a thin paper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reducing malodor in disposable diapers.

[0002]

2. Description of the Related Art In recent years, disposable disposable diapers have been routinely used. This is because of the convenience of the disposable diaper and hygienic reasons. In the case of conventional cloth diapers, when urination or defecation occurs, the diaper is replaced with a new one, and then washed and used again. This does not cause much inconvenience while at home or when there is enough time, but it is inconvenient when going out or busy and unable to handle laundry. Therefore, a paper diaper that can be discarded and processed when it is soiled by urination or defecation eliminates the above inconvenience.

Conventionally, such a paper diaper has a water-permeable porous fibrous surface layer on the side of the use surface that directly contacts the skin, a water-absorption layer for absorbing and holding the liquid underneath, and a liquid for the lowermost layer. It is equipped with a leakproof layer to prevent leakage.

[0004]

Therefore, when urine is discharged when the diaper is attached, the urine permeates the porous fibrous surface layer and is absorbed and held by the water absorbing layer below the porous fibrous surface layer, while urine is discharged. In some cases, only the liquid portion is absorbed and retained by the water absorbing layer.

However, even in such a paper diaper, since the water absorbing layer merely absorbs and holds the liquid of the waste, a bad odor is generated from the waste such as defecation and urination, and the bad odor causes the bad diaper to be worn. Those who are doing it or those around them feel a lot of discomfort. Further, when an infant wears the stool and urinates, the person who replaces the diaper feels a bad odor.

Therefore, the present invention is intended to solve the above problems, and an object of the present invention is to provide a disposable diaper capable of alleviating a foul odor generated from dirt.

[0007]

The present invention has been made in view of the above objects, and the gist thereof is that a water-permeable porous fibrous surface layer is provided on the side of the use surface that is in contact with the skin, and a liquid is provided thereunder. A paper diaper having a water absorbing layer for absorbing and holding, and a leak preventive layer for preventing liquid from leaking in the lowermost layer, wherein the water absorbing layer contains a fragrance.

In the paper diaper of the present invention, the water absorbent layer may be formed by sealing the cotton-like pulp, the polymer absorbent and the fragrance with a porous fiber.

[0009]

The paper diaper of the present invention is provided with a water absorbing layer containing a fragrance, so that the bad odor of waste such as urine and feces can be alleviated.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the supporting slide method according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 (a) is a plan view of the disposable diaper of the present invention, FIG. 1 (b) is a cross-sectional view taken along one-dot chain line II-II of FIG. 1 (a), and FIG. FIG. 3 is a sectional view taken along one-dot chain line III-III in FIG. As shown in FIGS. 1 (a), (b), and (c),
The paper diaper of the present invention comprises a water-permeable porous fibrous surface layer 2 arranged on the side of the use surface that touches the skin, a lower layer thereof, a water absorbing layer 1 which absorbs and holds a liquid and also contains a fragrance, and a lowermost layer. The main part is composed of the leak preventive layer 3 for preventing the leakage of the liquid.

Here, the water-absorbing layer 1 has an absorbent body 1a made of cotton-like pulp, a polymeric absorbent and a fragrance sandwiched between two porous fibers 1b and pressure-bonded to each other, for example, embossing treatment. And the like are integrally formed. Although not particularly limited, the polymer absorbent has a particle size of 30 to 50 μm.
Granules of m can be used.

The porous fibrous surface layer 2 is made of rayon, polyester, polypropylene, or a heat-melting type polyolefin composite fiber which is formed into a sheet and is heat-bonded or bonded with a binder, or rayon fiber and wood pulp. Is a rayon paper or the like that is made by mixing with, and is a material that allows liquid to permeate quickly. Such a material is also used for the porous fiber 1b of the water absorption layer 1 in the same manner. It should be noted that the porous fibrous surface layer 2 may be formed by laminating two or more sheets of the above-mentioned material as shown in FIG. 1B, or by laminating a plurality of sheets.

Further, the leakproof layer 3 is formed by using a film made of polyethylene, polypropylene, polyvinyl alcohol or the like, or a material obtained by laminating these films on a thin paper.

The porous fibrous surface layer 2 and the leakproof layer 3 as described above are formed by cutting two long sides of a rectangle into arcs and having substantially the same size. The water absorption layer 1 is formed in a rectangular shape smaller than the porous fibrous surface layer 2 and the leak preventive layer 3, and is arranged in the central portion of these.

In addition to the above main parts, a waist tape 9 provided with waist gathers 10 so as to be in close contact with the curved surface of the waist in the lateral direction of the upper and lower ends of the diaper is a porous fibrous surface layer. It is formed by being sandwiched between the leak preventive layer 3 and the leak preventive layer 3. A frontal tape 4 extending in the lateral direction of the paper diaper is fixed to one end of the leak-proof layer 3 and is used for attaching and detaching the paper diaper. Further, leg gathers 6 are provided between the porous fibrous surface layer 2 and the leak preventive layer 3, which are located on both sides where the water absorbing layer 1 is disposed, and are used for preventing side leakage. It Furthermore, between the upper and lower ends of the surface of the porous fibrous surface layer 2, three-dimensional gathers 5 are attached in the longitudinal direction substantially corresponding to the long sides of the water absorbing layer located therebelow.

Next, the step of forming the water absorbing layer 1 will be described with reference to FIG.

First, the porous fiber 1b is paid out from the roll 20 and sent to the water absorbing material laminating step through the guide roller 26. In the water-absorbing material laminating step, a large number of small holes (not shown) are formed in the belt 24a, and a belt conveyor 24 provided with a suction device 24b below the belt 24a conveys the porous fibers 1b while Conveyor 2
From the feeders 21, 22 and 23 provided separately above 4,
The cotton-like pulp 21 ', the fragrance 22', and the polymer absorbent 23 'are laminated and added on the porous fiber 1b.

Here, the suction device 24b of the belt conveyor
When activated, the suction force is transmitted to the porous fiber 1b through the small holes of the belt 24a, and the cotton-like pulp 21 ', the fragrance 22' and the polymer absorbent 2 which are stacked and conveyed on the porous fiber 1b.
3'can be prevented from scattering. In addition, the fragrance 22 'and the polymer absorbent 23' are preliminarily formed into a sheet shape, and these are laminated and
It may be fixed and added on or in the cotton-like pulp 21 ', and the fragrance 22' may be liquid or granular,
It may be appropriately added to the cotton-like pulp 21 'and the polymer absorbent 23'.

After the water-absorbing material laminating step, the porous fiber 1b fed from the roll 28 is laminated on the laminated water-absorbing material, and the laminated body is embossed to be integrated and cut into a predetermined size. Layer 1 is complete. After the above steps, the water absorbing layer 1 is integrated with the porous fibrous surface layer 2, the leakproof layer 3, and other components formed by other steps, and is formed as a disposable diaper.

[0021]

In the paper diaper of the present invention, since the water absorbing layer contains the fragrance, it is possible to mitigate the bad odor of urine, feces and other wastes, and therefore the wearer, those around the wearer, and the paper diaper can be The discomfort of the person who replaces it can be eased.

[Brief description of drawings]

FIG. 1A is a plan view of a paper diaper of the present invention, and FIG.
Is a cross-sectional view taken along the alternate long and short dash line II-II of (a), and (c) is
FIG. 3A is a sectional view taken along the alternate long and short dash line III-III.

FIG. 2 is an explanatory diagram illustrating a process of forming a water absorbing layer used in the paper diaper of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water-absorption layer 2 Porous fibrous surface layer 3 Leak-proof layer 21 'Cotton-like pulp 22' Perfume 23 'Polymer absorbent

Claims (2)

[Claims] 1. A disposable diaper having a water-permeable porous fibrous surface layer on the side of the surface that is in contact with the skin, a water-absorbing layer that absorbs and holds liquid underneath, and a leak-proof layer that prevents liquid from leaking at the lowermost layer. In the paper diaper, the water absorbing layer contains a fragrance. 2. The paper diaper according to claim 1, wherein the water-absorbent layer is formed by sealing cotton-like pulp, a polymeric absorbent, and a fragrance with porous fibers.